From 25b843f6bbacb1937bdb960777b73acbece64115 Mon Sep 17 00:00:00 2001 From: ziejd2 Date: Wed, 24 Feb 2021 14:36:59 -0600 Subject: GENENET8 update --- sourcecodes/scripts/FileSaver.min.js | 1 + sourcecodes/scripts/accordion.js | 31 + sourcecodes/scripts/accordion.js~ | 31 + sourcecodes/scripts/canvas-toBlob.js | 125 + sourcecodes/scripts/create_table.js | 84 + sourcecodes/scripts/create_table.js~ | 82 + sourcecodes/scripts/cytoscape-dagre.min.js | 8 + sourcecodes/scripts/cytoscape-panzoom.js | 587 + sourcecodes/scripts/cytoscape.js-panzoom.css | 220 + sourcecodes/scripts/cytoscape.min.js | 23 + sourcecodes/scripts/d3-selection-multi.v1.js | 94 + sourcecodes/scripts/d3.v4.min.js | 2 + sourcecodes/scripts/dagre.js | 16396 ++++++++++++++++++++++++ sourcecodes/scripts/font-awesome.css | 821 ++ sourcecodes/scripts/font-awesome.css~ | 821 ++ sourcecodes/scripts/fontawesome-webfont.eot | Bin 0 -> 38205 bytes sourcecodes/scripts/fontawesome-webfont.svg | 63 + sourcecodes/scripts/fontawesome-webfont.ttf | Bin 0 -> 80652 bytes sourcecodes/scripts/fontawesome-webfont.woff | Bin 0 -> 44432 bytes sourcecodes/scripts/jquery.min.js | 4 + sourcecodes/scripts/lodash.js | 17105 +++++++++++++++++++++++++ sourcecodes/scripts/table.css | 42 + sourcecodes/scripts/table.css~ | 42 + 23 files changed, 36582 insertions(+) create mode 100644 sourcecodes/scripts/FileSaver.min.js create mode 100644 sourcecodes/scripts/accordion.js create mode 100644 sourcecodes/scripts/accordion.js~ create mode 100644 sourcecodes/scripts/canvas-toBlob.js create mode 100644 sourcecodes/scripts/create_table.js create mode 100644 sourcecodes/scripts/create_table.js~ create mode 100644 sourcecodes/scripts/cytoscape-dagre.min.js create mode 100644 sourcecodes/scripts/cytoscape-panzoom.js create mode 100644 sourcecodes/scripts/cytoscape.js-panzoom.css create mode 100644 sourcecodes/scripts/cytoscape.min.js create mode 100644 sourcecodes/scripts/d3-selection-multi.v1.js create mode 100644 sourcecodes/scripts/d3.v4.min.js create mode 100644 sourcecodes/scripts/dagre.js create mode 100644 sourcecodes/scripts/font-awesome.css create mode 100644 sourcecodes/scripts/font-awesome.css~ create mode 100644 sourcecodes/scripts/fontawesome-webfont.eot create mode 100644 sourcecodes/scripts/fontawesome-webfont.svg create mode 100644 sourcecodes/scripts/fontawesome-webfont.ttf create mode 100644 sourcecodes/scripts/fontawesome-webfont.woff create mode 100644 sourcecodes/scripts/jquery.min.js create mode 100644 sourcecodes/scripts/lodash.js create mode 100644 sourcecodes/scripts/table.css create mode 100644 sourcecodes/scripts/table.css~ (limited to 'sourcecodes/scripts') diff --git a/sourcecodes/scripts/FileSaver.min.js b/sourcecodes/scripts/FileSaver.min.js new file mode 100644 index 00000000..0ec6dd23 --- /dev/null +++ b/sourcecodes/scripts/FileSaver.min.js @@ -0,0 +1 @@ +(function(a,b){if("function"==typeof define&&define.amd)define([],b);else if("undefined"!=typeof exports)b();else{b(),a.FileSaver={exports:{}}.exports}})(this,function(){"use strict";function b(a,b){return"undefined"==typeof b?b={autoBom:!1}:"object"!=typeof b&&(console.warn("Deprecated: Expected third argument to be a object"),b={autoBom:!b}),b.autoBom&&/^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(a.type)?new Blob(["\uFEFF",a],{type:a.type}):a}function c(a,b,c){var d=new XMLHttpRequest;d.open("GET",a),d.responseType="blob",d.onload=function(){g(d.response,b,c)},d.onerror=function(){console.error("could not download file")},d.send()}function d(a){var b=new XMLHttpRequest;b.open("HEAD",a,!1);try{b.send()}catch(a){}return 200<=b.status&&299>=b.status}function e(a){try{a.dispatchEvent(new MouseEvent("click"))}catch(c){var b=document.createEvent("MouseEvents");b.initMouseEvent("click",!0,!0,window,0,0,0,80,20,!1,!1,!1,!1,0,null),a.dispatchEvent(b)}}var f="object"==typeof window&&window.window===window?window:"object"==typeof self&&self.self===self?self:"object"==typeof global&&global.global===global?global:void 0,a=/Macintosh/.test(navigator.userAgent)&&/AppleWebKit/.test(navigator.userAgent)&&!/Safari/.test(navigator.userAgent),g=f.saveAs||("object"!=typeof window||window!==f?function(){}:"download"in HTMLAnchorElement.prototype&&!a?function(b,g,h){var i=f.URL||f.webkitURL,j=document.createElement("a");g=g||b.name||"download",j.download=g,j.rel="noopener","string"==typeof b?(j.href=b,j.origin===location.origin?e(j):d(j.href)?c(b,g,h):e(j,j.target="_blank")):(j.href=i.createObjectURL(b),setTimeout(function(){i.revokeObjectURL(j.href)},4E4),setTimeout(function(){e(j)},0))}:"msSaveOrOpenBlob"in navigator?function(f,g,h){if(g=g||f.name||"download","string"!=typeof f)navigator.msSaveOrOpenBlob(b(f,h),g);else if(d(f))c(f,g,h);else{var i=document.createElement("a");i.href=f,i.target="_blank",setTimeout(function(){e(i)})}}:function(b,d,e,g){if(g=g||open("","_blank"),g&&(g.document.title=g.document.body.innerText="downloading..."),"string"==typeof b)return c(b,d,e);var h="application/octet-stream"===b.type,i=/constructor/i.test(f.HTMLElement)||f.safari,j=/CriOS\/[\d]+/.test(navigator.userAgent);if((j||h&&i||a)&&"undefined"!=typeof FileReader){var k=new FileReader;k.onloadend=function(){var a=k.result;a=j?a:a.replace(/^data:[^;]*;/,"data:attachment/file;"),g?g.location.href=a:location=a,g=null},k.readAsDataURL(b)}else{var l=f.URL||f.webkitURL,m=l.createObjectURL(b);g?g.location=m:location.href=m,g=null,setTimeout(function(){l.revokeObjectURL(m)},4E4)}});f.saveAs=g.saveAs=g,"undefined"!=typeof module&&(module.exports=g)}); diff --git a/sourcecodes/scripts/accordion.js b/sourcecodes/scripts/accordion.js new file mode 100644 index 00000000..513bde84 --- /dev/null +++ b/sourcecodes/scripts/accordion.js @@ -0,0 +1,31 @@ +$(function() { +var acc = document.getElementsByClassName("accordion"); +var panel = document.getElementsByClassName("panel"); +var icons = document.getElementsByClassName("i"); +var i; + +for (var i = 0; i < acc.length; i++) { + acc[i].onclick = function() { + var setClasses = !this.classList.contains('active'); + setClass(acc, 'active', 'remove'); + setClass(panel, 'show', 'remove'); + if (setClasses) { + this.classList.toggle("active"); + this.nextElementSibling.classList.toggle("show"); + } + } +} + +function setClass(els, className, fnName) { + for (var i = 0; i < els.length; i++) { + els[i].classList[fnName](className); + } +} + +$('button').click(function() { + $('i').not($(this).find('i')).removeClass('fa-angle-up') + $('i').not($(this).find('i')).addClass('fa-angle-down') + $(this).find('i').toggleClass('fa-angle-down fa-angle-up') + }); + } + ) diff --git a/sourcecodes/scripts/accordion.js~ b/sourcecodes/scripts/accordion.js~ new file mode 100644 index 00000000..51949b96 --- /dev/null +++ b/sourcecodes/scripts/accordion.js~ @@ -0,0 +1,31 @@ +$(function() { +var acc = document.getElementsByClassName("accordion"); +var panel = document.getElementsByClassName("panel"); +var icons = document.getElementsByClassName("i"); +var i; + +for (var i = 0; i < acc.length; i++) { + acc[i].onclick = function() { + var setClasses = !this.classList.contains('active'); + setClass(acc, 'active', 'remove'); + setClass(panel, 'show', 'remove'); + if (setClasses) { + this.classList.toggle("active"); + this.nextElementSibling.classList.toggle("show"); + } + } +} + +function setClass(els, className, fnName) { + for (var i = 0; i < els.length; i++) { + els[i].classList[fnName](className); + } +} + +$('button').click(function() { + $('i').not($(this).find('i')).removeClass('fa-minus') + $('i').not($(this).find('i')).addClass('fa-plus') + $(this).find('i').toggleClass('fa-plus fa-minus') + }); + } + ) \ No newline at end of file diff --git a/sourcecodes/scripts/canvas-toBlob.js b/sourcecodes/scripts/canvas-toBlob.js new file mode 100644 index 00000000..3dd3c7ef --- /dev/null +++ b/sourcecodes/scripts/canvas-toBlob.js @@ -0,0 +1,125 @@ +/* canvas-toBlob.js + * A canvas.toBlob() implementation. + * 2016-05-26 + * + * By Eli Grey, http://eligrey.com and Devin Samarin, https://github.com/eboyjr + * License: MIT + * See https://github.com/eligrey/canvas-toBlob.js/blob/master/LICENSE.md + */ + +/*global self */ +/*jslint bitwise: true, regexp: true, confusion: true, es5: true, vars: true, white: true, + plusplus: true */ + +/*! @source http://purl.eligrey.com/github/canvas-toBlob.js/blob/master/canvas-toBlob.js */ + +(function(view) { + "use strict"; +var + Uint8Array = view.Uint8Array + , HTMLCanvasElement = view.HTMLCanvasElement + , canvas_proto = HTMLCanvasElement && HTMLCanvasElement.prototype + , is_base64_regex = /\s*;\s*base64\s*(?:;|$)/i + , to_data_url = "toDataURL" + , base64_ranks + , decode_base64 = function(base64) { + var + len = base64.length + , buffer = new Uint8Array(len / 4 * 3 | 0) + , i = 0 + , outptr = 0 + , last = [0, 0] + , state = 0 + , save = 0 + , rank + , code + , undef + ; + while (len--) { + code = base64.charCodeAt(i++); + rank = base64_ranks[code-43]; + if (rank !== 255 && rank !== undef) { + last[1] = last[0]; + last[0] = code; + save = (save << 6) | rank; + state++; + if (state === 4) { + buffer[outptr++] = save >>> 16; + if (last[1] !== 61 /* padding character */) { + buffer[outptr++] = save >>> 8; + } + if (last[0] !== 61 /* padding character */) { + buffer[outptr++] = save; + } + state = 0; + } + } + } + // 2/3 chance there's going to be some null bytes at the end, but that + // doesn't really matter with most image formats. + // If it somehow matters for you, truncate the buffer up outptr. + return buffer; +} +; +if (Uint8Array) { + base64_ranks = new Uint8Array([ + 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1 + , -1, -1, 0, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 + , 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 + , -1, -1, -1, -1, -1, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 + , 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51 + ]); +} +if (HTMLCanvasElement && (!canvas_proto.toBlob || !canvas_proto.toBlobHD)) { + if (!canvas_proto.toBlob) + canvas_proto.toBlob = function(callback, type /*, ...args*/) { + if (!type) { + type = "image/png"; + } if (this.mozGetAsFile) { + callback(this.mozGetAsFile("canvas", type)); + return; + } if (this.msToBlob && /^\s*image\/png\s*(?:$|;)/i.test(type)) { + callback(this.msToBlob()); + return; + } + + var + args = Array.prototype.slice.call(arguments, 1) + , dataURI = this[to_data_url].apply(this, args) + , header_end = dataURI.indexOf(",") + , data = dataURI.substring(header_end + 1) + , is_base64 = is_base64_regex.test(dataURI.substring(0, header_end)) + , blob + ; + if (Blob.fake) { + // no reason to decode a data: URI that's just going to become a data URI again + blob = new Blob + if (is_base64) { + blob.encoding = "base64"; + } else { + blob.encoding = "URI"; + } + blob.data = data; + blob.size = data.length; + } else if (Uint8Array) { + if (is_base64) { + blob = new Blob([decode_base64(data)], {type: type}); + } else { + blob = new Blob([decodeURIComponent(data)], {type: type}); + } + } + callback(blob); + }; + + if (!canvas_proto.toBlobHD && canvas_proto.toDataURLHD) { + canvas_proto.toBlobHD = function() { + to_data_url = "toDataURLHD"; + var blob = this.toBlob(); + to_data_url = "toDataURL"; + return blob; + } + } else { + canvas_proto.toBlobHD = canvas_proto.toBlob; + } +} +}(typeof self !== "undefined" && self || typeof window !== "undefined" && window || this.content || this)); diff --git a/sourcecodes/scripts/create_table.js b/sourcecodes/scripts/create_table.js new file mode 100644 index 00000000..6d0cd9b7 --- /dev/null +++ b/sourcecodes/scripts/create_table.js @@ -0,0 +1,84 @@ +function tabulate_caption(container,data,caption_text) { + var table = d3.select(container).append('table'); + var caption = table.append("caption").text(caption_text); + //var titles = d3.keys(data[0]); + var titles = data.columns; + var headers = table.append('thead').append('tr') + .selectAll('th') + .data(titles).enter() + .append('th') + .text(function (d) { + return d; + }); + + var rows = table.append('tbody').selectAll('tr') + .data(data).enter() + .append('tr'); + rows.selectAll('td') + .data(function (d) { + return titles.map(function (k) { + return { 'value': d[k], 'name': k}; + }); + }).enter() + .append('td') + .attr('data-th', function (d) { + return d.name; + }) + .text(function (d) { + return d.value; + }); + return table; +} + +function tabulate_header_row(container,data,caption_text) { + var table = d3.select(container).append('table'); + var caption = table.append("caption").text(caption_text); + //var titles = d3.keys(data[0]); + var titles = data.columns; + for (var i=0; i'); + $container.prepend( $panzoom ); + + $panzoom.css('position', 'absolute'); // must be absolute regardless of stylesheet + + $panzoom.data('winbdgs', winbdgs); + $panzoom.data('cybdgs', cybdgs); + + if( options.zoomOnly ){ + $panzoom.addClass("cy-panzoom-zoom-only"); + } + + // add base html elements + ///////////////////////// + + var $zoomIn = $('
'); + $panzoom.append( $zoomIn ); + + var $zoomOut = $('
'); + $panzoom.append( $zoomOut ); + + var $reset = $('
'); + $panzoom.append( $reset ); + + var $slider = $('
'); + $panzoom.append( $slider ); + + $slider.append('
'); + + var $sliderHandle = $('
'); + $slider.append( $sliderHandle ); + + var $noZoomTick = $('
'); + $slider.append( $noZoomTick ); + + var $panner = $('
'); + $panzoom.append( $panner ); + + var $pHandle = $('
'); + $panner.append( $pHandle ); + + var $pUp = $('
'); + var $pDown = $('
'); + var $pLeft = $('
'); + var $pRight = $('
'); + $panner.append( $pUp ).append( $pDown ).append( $pLeft ).append( $pRight ); + + var $pIndicator = $('
'); + $panner.append( $pIndicator ); + + // functions for calculating panning + //////////////////////////////////// + + function handle2pan(e){ + var v = { + x: e.originalEvent.pageX - $panner.offset().left - $panner.width()/2, + y: e.originalEvent.pageY - $panner.offset().top - $panner.height()/2 + } + + var r = options.panDragAreaSize; + var d = Math.sqrt( v.x*v.x + v.y*v.y ); + var percent = Math.min( d/r, 1 ); + + if( d < options.panInactiveArea ){ + return { + x: NaN, + y: NaN + }; + } + + v = { + x: v.x/d, + y: v.y/d + }; + + percent = Math.max( options.panMinPercentSpeed, percent ); + + var vnorm = { + x: -1 * v.x * (percent * options.panDistance), + y: -1 * v.y * (percent * options.panDistance) + }; + + return vnorm; + } + + function donePanning(){ + clearInterval(panInterval); + windowUnbind("mousemove", handler); + + $pIndicator.hide(); + } + + function positionIndicator(pan){ + var v = pan; + var d = Math.sqrt( v.x*v.x + v.y*v.y ); + var vnorm = { + x: -1 * v.x/d, + y: -1 * v.y/d + }; + + var w = $panner.width(); + var h = $panner.height(); + var percent = d/options.panDistance; + var opacity = Math.max( options.panIndicatorMinOpacity, percent ); + var color = 255 - Math.round( opacity * 255 ); + + $pIndicator.show().css({ + left: w/2 * vnorm.x + w/2, + top: h/2 * vnorm.y + h/2, + background: "rgb(" + color + ", " + color + ", " + color + ")" + }); + } + + function calculateZoomCenterPoint(){ + var pan = cyRef.pan(); + var zoom = cyRef.zoom(); + + zx = $container.width()/2; + zy = $container.height()/2; + } + + var zooming = false; + function startZooming(){ + zooming = true; + + calculateZoomCenterPoint(); + } + + + function endZooming(){ + zooming = false; + } + + var zx, zy; + function zoomTo(level){ + if( !zooming ){ // for non-continuous zooming (e.g. click slider at pt) + calculateZoomCenterPoint(); + } + + cyRef.zoom({ + level: level, + renderedPosition: { x: zx, y: zy } + }); + } + + var panInterval; + + var handler = function(e){ + e.stopPropagation(); // don't trigger dragging of panzoom + e.preventDefault(); // don't cause text selection + clearInterval(panInterval); + + var pan = handle2pan(e); + + if( isNaN(pan.x) || isNaN(pan.y) ){ + $pIndicator.hide(); + return; + } + + positionIndicator(pan); + panInterval = setInterval(function(){ + cyRef.panBy(pan); + }, options.panSpeed); + }; + + $pHandle.bind("mousedown", function(e){ + // handle click of icon + handler(e); + + // update on mousemove + windowBind("mousemove", handler); + }); + + $pHandle.bind("mouseup", function(){ + donePanning(); + }); + + windowBind("mouseup blur", function(){ + donePanning(); + }); + + + + // set up slider behaviour + ////////////////////////// + + $slider.bind('mousedown', function(){ + return false; // so we don't pan close to the slider handle + }); + + var sliderVal; + var sliding = false; + var sliderPadding = 2; + + function setSliderFromMouse(evt, handleOffset){ + if( handleOffset === undefined ){ + handleOffset = 0; + } + + var padding = sliderPadding; + var min = 0 + padding; + var max = $slider.height() - $sliderHandle.height() - 2*padding; + var top = evt.pageY - $slider.offset().top - handleOffset; + + // constrain to slider bounds + if( top < min ){ top = min } + if( top > max ){ top = max } + + var percent = 1 - (top - min) / ( max - min ); + + // move the handle + $sliderHandle.css('top', top); + + var zmin = options.minZoom; + var zmax = options.maxZoom; + + // assume (zoom = zmax ^ p) where p ranges on (x, 1) with x negative + var x = Math.log(zmin) / Math.log(zmax); + var p = (1 - x)*percent + x; + + // change the zoom level + var z = Math.pow( zmax, p ); + + // bound the zoom value in case of floating pt rounding error + if( z < zmin ){ + z = zmin; + } else if( z > zmax ){ + z = zmax; + } + + zoomTo( z ); + } + + var sliderMdownHandler, sliderMmoveHandler; + $sliderHandle.bind('mousedown', sliderMdownHandler = function( mdEvt ){ + var handleOffset = mdEvt.target === $sliderHandle[0] ? mdEvt.offsetY : 0; + sliding = true; + + startZooming(); + $sliderHandle.addClass("active"); + + var lastMove = 0; + windowBind('mousemove', sliderMmoveHandler = function( mmEvt ){ + var now = +new Date; + + // throttle the zooms every 10 ms so we don't call zoom too often and cause lag + if( now > lastMove + 10 ){ + lastMove = now; + } else { + return false; + } + + setSliderFromMouse(mmEvt, handleOffset); + + return false; + }); + + // unbind when + windowBind('mouseup', function(){ + windowUnbind('mousemove', sliderMmoveHandler); + sliding = false; + + $sliderHandle.removeClass("active"); + endZooming(); + }); + + return false; + }); + + $slider.bind('mousedown', function(e){ + if( e.target !== $sliderHandle[0] ){ + sliderMdownHandler(e); + setSliderFromMouse(e); + } + }); + + function positionSliderFromZoom(){ + var z = cyRef.zoom(); + var zmin = options.minZoom; + var zmax = options.maxZoom; + + // assume (zoom = zmax ^ p) where p ranges on (x, 1) with x negative + var x = Math.log(zmin) / Math.log(zmax); + var p = Math.log(z) / Math.log(zmax); + var percent = 1 - (p - x) / (1 - x); // the 1- bit at the front b/c up is in the -ve y direction + + var min = sliderPadding; + var max = $slider.height() - $sliderHandle.height() - 2*sliderPadding; + var top = percent * ( max - min ); + + // constrain to slider bounds + if( top < min ){ top = min } + if( top > max ){ top = max } + + // move the handle + $sliderHandle.css('top', top); + } + + positionSliderFromZoom(); + + cyOn('zoom', function(){ + if( !sliding ){ + positionSliderFromZoom(); + } + }); + + // set the position of the zoom=1 tick + (function(){ + var z = 1; + var zmin = options.minZoom; + var zmax = options.maxZoom; + + // assume (zoom = zmax ^ p) where p ranges on (x, 1) with x negative + var x = Math.log(zmin) / Math.log(zmax); + var p = Math.log(z) / Math.log(zmax); + var percent = 1 - (p - x) / (1 - x); // the 1- bit at the front b/c up is in the -ve y direction + + if( percent > 1 || percent < 0 ){ + $noZoomTick.hide(); + return; + } + + var min = sliderPadding; + var max = $slider.height() - $sliderHandle.height() - 2*sliderPadding; + var top = percent * ( max - min ); + + // constrain to slider bounds + if( top < min ){ top = min } + if( top > max ){ top = max } + + $noZoomTick.css('top', top); + })(); + + // set up zoom in/out buttons + ///////////////////////////// + + function bindButton($button, factor){ + var zoomInterval; + + $button.bind("mousedown", function(e){ + e.preventDefault(); + e.stopPropagation(); + + if( e.button != 0 ){ + return; + } + + var doZoom = function(){ + var zoom = cyRef.zoom(); + var lvl = cyRef.zoom() * factor; + + if( lvl < options.minZoom ){ + lvl = options.minZoom; + } + + if( lvl > options.maxZoom ){ + lvl = options.maxZoom; + } + + if( (lvl == options.maxZoom && zoom == options.maxZoom) || + (lvl == options.minZoom && zoom == options.minZoom) + ){ + return; + } + + zoomTo(lvl); + }; + + startZooming(); + doZoom(); + zoomInterval = setInterval(doZoom, options.zoomDelay); + + return false; + }); + + windowBind("mouseup blur", function(){ + clearInterval(zoomInterval); + endZooming(); + }); + } + + bindButton( $zoomIn, (1 + options.zoomFactor) ); + bindButton( $zoomOut, (1 - options.zoomFactor) ); + + $reset.bind("mousedown", function(e){ + if( e.button != 0 ){ + return; + } + + var elesToFit = options.fitSelector?cyRef.elements(options.fitSelector):cyRef.elements(); + + if( elesToFit.size() === 0 ){ + cyRef.reset(); + } else { + var animateOnFit = typeof options.animateOnFit === 'function' ? options.animateOnFit.call() : options.animateOnFit; + if(animateOnFit){ + cyRef.animate({ + fit: { + eles: elesToFit, + padding: options.fitPadding + } + }, { + duration: options.fitAnimationDuration + }); + } + else{ + cyRef.fit( elesToFit, options.fitPadding ); + } + + } + + return false; + }); + + + + }); + } + }; + + if( functions[fn] ){ + return functions[fn].apply(this, Array.prototype.slice.call( arguments, 1 )); + } else if( typeof fn == 'object' || !fn ) { + return functions.init.apply( this, arguments ); + } else { + $.error("No such function `"+ fn +"` for jquery.cytoscapePanzoom"); + } + + return $(this); + }; + + + if( typeof module !== 'undefined' && module.exports ){ // expose as a commonjs module + module.exports = function( cytoscape, jquery ){ + register( cytoscape, jquery || require('jquery') ); + } + } else if( typeof define !== 'undefined' && define.amd ){ // expose as an amd/requirejs module + define('cytoscape-panzoom', function(){ + return register; + }); + } + + if( typeof cytoscape !== 'undefined' && typeof jQuery !== 'undefined' ){ // expose to global cytoscape (i.e. window.cytoscape) + register( cytoscape, jQuery ); + } + +})(); diff --git a/sourcecodes/scripts/cytoscape.js-panzoom.css b/sourcecodes/scripts/cytoscape.js-panzoom.css new file mode 100644 index 00000000..dfa9c592 --- /dev/null +++ b/sourcecodes/scripts/cytoscape.js-panzoom.css @@ -0,0 +1,220 @@ +.cy-panzoom { + position: absolute; + font-size: 12px; + color: #fff; + font-family: arial, helvetica, sans-serif; + line-height: 1; + color: #666; + font-size: 11px; + z-index: 99999; + box-sizing: content-box; +} + +.cy-panzoom-zoom-button { + cursor: pointer; + padding: 3px; + text-align: center; + position: absolute; + border-radius: 3px; + width: 10px; + height: 10px; + left: 16px; + background: #fff; + border: 1px solid #999; + margin-left: -1px; + margin-top: -1px; + z-index: 1; + box-sizing: content-box; +} + +.cy-panzoom-zoom-button:active, +.cy-panzoom-slider-handle:active, +.cy-panzoom-slider-handle.active { + background: #ddd; + box-sizing: content-box; +} + +.cy-panzoom-pan-button { + position: absolute; + z-index: 1; + height: 16px; + width: 16px; + box-sizing: content-box; +} + +.cy-panzoom-reset { + top: 55px; + box-sizing: content-box; +} + +.cy-panzoom-zoom-in { + top: 80px; + box-sizing: content-box; +} + +.cy-panzoom-zoom-out { + top: 197px; + box-sizing: content-box; +} + +.cy-panzoom-pan-up { + top: 0; + left: 50%; + margin-left: -5px; + width: 0; + height: 0; + border-left: 5px solid transparent; + border-right: 5px solid transparent; + border-bottom: 5px solid #666; + box-sizing: content-box; +} + +.cy-panzoom-pan-down { + bottom: 0; + left: 50%; + margin-left: -5px; + width: 0; + height: 0; + border-left: 5px solid transparent; + border-right: 5px solid transparent; + border-top: 5px solid #666; + box-sizing: content-box; +} + +.cy-panzoom-pan-left { + top: 50%; + left: 0; + margin-top: -5px; + width: 0; + height: 0; + border-top: 5px solid transparent; + border-bottom: 5px solid transparent; + border-right: 5px solid #666; + box-sizing: content-box; +} + +.cy-panzoom-pan-right { + top: 50%; + right: 0; + margin-top: -5px; + width: 0; + height: 0; + border-top: 5px solid transparent; + border-bottom: 5px solid transparent; + border-left: 5px solid #666; + box-sizing: content-box; +} + +.cy-panzoom-pan-indicator { + position: absolute; + left: 0; + top: 0; + width: 8px; + height: 8px; + border-radius: 8px; + background: #000; + border-radius: 8px; + margin-left: -5px; + margin-top: -5px; + display: none; + z-index: 999; + opacity: 0.6; + box-sizing: content-box; +} + +.cy-panzoom-slider { + position: absolute; + top: 97px; + left: 17px; + height: 100px; + width: 15px; + box-sizing: content-box; +} + +.cy-panzoom-slider-background { + position: absolute; + top: 0; + width: 2px; + height: 100px; + left: 5px; + background: #fff; + border-left: 1px solid #999; + border-right: 1px solid #999; + box-sizing: content-box; +} + +.cy-panzoom-slider-handle { + position: absolute; + width: 16px; + height: 8px; + background: #fff; + border: 1px solid #999; + border-radius: 2px; + margin-left: -2px; + z-index: 999; + line-height: 8px; + cursor: default; + box-sizing: content-box; +} + +.cy-panzoom-slider-handle .icon { + margin: 0 4px; + line-height: 10px; + box-sizing: content-box; +} + +.cy-panzoom-no-zoom-tick { + position: absolute; + background: #666; + border: 1px solid #fff; + border-radius: 2px; + margin-left: -1px; + width: 8px; + height: 2px; + left: 3px; + z-index: 1; + margin-top: 3px; + box-sizing: content-box; +} + +.cy-panzoom-panner { + position: absolute; + left: 5px; + top: 5px; + height: 40px; + width: 40px; + background: #fff; + border: 1px solid #999; + border-radius: 40px; + margin-left: -1px; + box-sizing: content-box; +} + +.cy-panzoom-panner-handle { + position: absolute; + left: 0; + top: 0; + outline: none; + height: 40px; + width: 40px; + position: absolute; + z-index: 999; + box-sizing: content-box; +} + +.cy-panzoom-zoom-only .cy-panzoom-slider, +.cy-panzoom-zoom-only .cy-panzoom-panner { + display: none; +} + +.cy-panzoom-zoom-only .cy-panzoom-reset { + top: 20px; +} + +.cy-panzoom-zoom-only .cy-panzoom-zoom-in { + top: 45px; +} + +.cy-panzoom-zoom-only .cy-panzoom-zoom-out { + top: 70px; +} diff --git a/sourcecodes/scripts/cytoscape.min.js b/sourcecodes/scripts/cytoscape.min.js new file mode 100644 index 00000000..ce78add6 --- /dev/null +++ b/sourcecodes/scripts/cytoscape.min.js @@ -0,0 +1,23 @@ +/** + * Copyright (c) 2016-2019, The Cytoscape Consortium. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the “Software”), to deal in + * the Software without restriction, including without limitation the rights to + * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is furnished to do + * so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).cytoscape=t()}(this,function(){"use strict";function e(t){return(e="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(t)}function t(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function n(e,t){for(var n=0;nt?1:0},I=null!=Object.assign?Object.assign.bind(Object):function(e){for(var t=arguments,n=1;n255)return;t.push(Math.floor(a))}var o=r[1]||r[2]||r[3],s=r[1]&&r[2]&&r[3];if(o&&!s)return;var l=n[4];if(void 0!==l){if((l=parseFloat(l))<0||l>1)return;t.push(l)}}return t}(e)||function(e){var t,n,r,i,a,o,s,l;function u(e,t,n){return n<0&&(n+=1),n>1&&(n-=1),n<1/6?e+6*(t-e)*n:n<.5?t:n<2/3?e+(t-e)*(2/3-n)*6:e}var c=new RegExp("^hsl[a]?\\(((?:[-+]?(?:(?:\\d+|\\d*\\.\\d+)(?:[Ee][+-]?\\d+)?)))\\s*,\\s*((?:[-+]?(?:(?:\\d+|\\d*\\.\\d+)(?:[Ee][+-]?\\d+)?))[%])\\s*,\\s*((?:[-+]?(?:(?:\\d+|\\d*\\.\\d+)(?:[Ee][+-]?\\d+)?))[%])(?:\\s*,\\s*((?:[-+]?(?:(?:\\d+|\\d*\\.\\d+)(?:[Ee][+-]?\\d+)?))))?\\)$").exec(e);if(c){if((n=parseInt(c[1]))<0?n=(360- -1*n%360)%360:n>360&&(n%=360),n/=360,(r=parseFloat(c[2]))<0||r>100)return;if(r/=100,(i=parseFloat(c[3]))<0||i>100)return;if(i/=100,void 0!==(a=c[4])&&((a=parseFloat(a))<0||a>1))return;if(0===r)o=s=l=Math.round(255*i);else{var h=i<.5?i*(1+r):i+r-i*r,d=2*i-h;o=Math.round(255*u(d,h,n+1/3)),s=Math.round(255*u(d,h,n)),l=Math.round(255*u(d,h,n-1/3))}t=[o,s,l,a]}return t}(e)},L={transparent:[0,0,0,0],aliceblue:[240,248,255],antiquewhite:[250,235,215],aqua:[0,255,255],aquamarine:[127,255,212],azure:[240,255,255],beige:[245,245,220],bisque:[255,228,196],black:[0,0,0],blanchedalmond:[255,235,205],blue:[0,0,255],blueviolet:[138,43,226],brown:[165,42,42],burlywood:[222,184,135],cadetblue:[95,158,160],chartreuse:[127,255,0],chocolate:[210,105,30],coral:[255,127,80],cornflowerblue:[100,149,237],cornsilk:[255,248,220],crimson:[220,20,60],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgoldenrod:[184,134,11],darkgray:[169,169,169],darkgreen:[0,100,0],darkgrey:[169,169,169],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkseagreen:[143,188,143],darkslateblue:[72,61,139],darkslategray:[47,79,79],darkslategrey:[47,79,79],darkturquoise:[0,206,209],darkviolet:[148,0,211],deeppink:[255,20,147],deepskyblue:[0,191,255],dimgray:[105,105,105],dimgrey:[105,105,105],dodgerblue:[30,144,255],firebrick:[178,34,34],floralwhite:[255,250,240],forestgreen:[34,139,34],fuchsia:[255,0,255],gainsboro:[220,220,220],ghostwhite:[248,248,255],gold:[255,215,0],goldenrod:[218,165,32],gray:[128,128,128],grey:[128,128,128],green:[0,128,0],greenyellow:[173,255,47],honeydew:[240,255,240],hotpink:[255,105,180],indianred:[205,92,92],indigo:[75,0,130],ivory:[255,255,240],khaki:[240,230,140],lavender:[230,230,250],lavenderblush:[255,240,245],lawngreen:[124,252,0],lemonchiffon:[255,250,205],lightblue:[173,216,230],lightcoral:[240,128,128],lightcyan:[224,255,255],lightgoldenrodyellow:[250,250,210],lightgray:[211,211,211],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightsalmon:[255,160,122],lightseagreen:[32,178,170],lightskyblue:[135,206,250],lightslategray:[119,136,153],lightslategrey:[119,136,153],lightsteelblue:[176,196,222],lightyellow:[255,255,224],lime:[0,255,0],limegreen:[50,205,50],linen:[250,240,230],magenta:[255,0,255],maroon:[128,0,0],mediumaquamarine:[102,205,170],mediumblue:[0,0,205],mediumorchid:[186,85,211],mediumpurple:[147,112,219],mediumseagreen:[60,179,113],mediumslateblue:[123,104,238],mediumspringgreen:[0,250,154],mediumturquoise:[72,209,204],mediumvioletred:[199,21,133],midnightblue:[25,25,112],mintcream:[245,255,250],mistyrose:[255,228,225],moccasin:[255,228,181],navajowhite:[255,222,173],navy:[0,0,128],oldlace:[253,245,230],olive:[128,128,0],olivedrab:[107,142,35],orange:[255,165,0],orangered:[255,69,0],orchid:[218,112,214],palegoldenrod:[238,232,170],palegreen:[152,251,152],paleturquoise:[175,238,238],palevioletred:[219,112,147],papayawhip:[255,239,213],peachpuff:[255,218,185],peru:[205,133,63],pink:[255,192,203],plum:[221,160,221],powderblue:[176,224,230],purple:[128,0,128],red:[255,0,0],rosybrown:[188,143,143],royalblue:[65,105,225],saddlebrown:[139,69,19],salmon:[250,128,114],sandybrown:[244,164,96],seagreen:[46,139,87],seashell:[255,245,238],sienna:[160,82,45],silver:[192,192,192],skyblue:[135,206,235],slateblue:[106,90,205],slategray:[112,128,144],slategrey:[112,128,144],snow:[255,250,250],springgreen:[0,255,127],steelblue:[70,130,180],tan:[210,180,140],teal:[0,128,128],thistle:[216,191,216],tomato:[255,99,71],turquoise:[64,224,208],violet:[238,130,238],wheat:[245,222,179],white:[255,255,255],whitesmoke:[245,245,245],yellow:[255,255,0],yellowgreen:[154,205,50]},A=function(e){for(var t=e.map,n=e.keys,r=n.length,i=0;i=t||n<0||h&&e-u>=a}function g(){var e=J();if(f(e))return v(e);s=setTimeout(g,function(e){var n=t-(e-l);return h?Q(n,a-(e-u)):n}(e))}function v(e){return s=void 0,d&&r?p(e):(r=i=void 0,o)}function y(){var e=J(),n=f(e);if(r=arguments,i=this,l=e,n){if(void 0===s)return function(e){return u=e,s=setTimeout(g,t),c?p(e):o}(l);if(h)return s=setTimeout(g,t),p(l)}return void 0===s&&(s=setTimeout(g,t)),o}return t=te(t)||0,ee(n)&&(c=!!n.leading,a=(h="maxWait"in n)?$(te(n.maxWait)||0,t):a,d="trailing"in n?!!n.trailing:d),y.cancel=function(){void 0!==s&&clearTimeout(s),u=0,r=l=i=s=void 0},y.flush=function(){return void 0===s?o:v(J())},y},re=a?a.performance:null,ie=re&&re.now?function(){return re.now()}:function(){return Date.now()},ae=function(){if(a){if(a.requestAnimationFrame)return function(e){a.requestAnimationFrame(e)};if(a.mozRequestAnimationFrame)return function(e){a.mozRequestAnimationFrame(e)};if(a.webkitRequestAnimationFrame)return function(e){a.webkitRequestAnimationFrame(e)};if(a.msRequestAnimationFrame)return function(e){a.msRequestAnimationFrame(e)}}return function(e){e&&setTimeout(function(){e(ie())},1e3/60)}}(),oe=function(e){return ae(e)},se=ie,le=function(e){for(var t,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:5381;!(t=e.next()).done;)n=33*n^t.value;return n>>>0},ue=function(e){return(33*(arguments.length>1&&void 0!==arguments[1]?arguments[1]:5381)^e)>>>0},ce=function(e,t){var n={value:0,done:!1},r=0,i=e.length;return le({next:function(){return r=0&&(e[r]!==t||(e.splice(r,1),n));r--);},_e=function(e){e.splice(0,e.length)},Ne=function(e,t,n){return n&&(t=M(n,t)),e[t]},Ie=function(e,t,n,r){n&&(t=M(n,t)),e[t]=r},ze="undefined"!=typeof Map?Map:function(){function e(){t(this,e),this._obj={}}return r(e,[{key:"set",value:function(e,t){return this._obj[e]=t,this}},{key:"delete",value:function(e){return this._obj[e]=void 0,this}},{key:"clear",value:function(){this._obj={}}},{key:"has",value:function(e){return void 0!==this._obj[e]}},{key:"get",value:function(e){return this._obj[e]}}]),e}(),Le=function(){function e(n){if(t(this,e),this._obj=Object.create(null),this.size=0,null!=n){var r;r=null!=n.instanceString&&n.instanceString()===this.instanceString()?n.toArray():n;for(var i=0;it?1:0},u=function(e,t,i,a,o){var s;if(null==i&&(i=0),null==o&&(o=n),i<0)throw new Error("lo must be non-negative");for(null==a&&(a=e.length);in;0<=n?t++:t--)u.push(t);return u}.apply(this).reverse()).length;ag;0<=g?++d:--d)v.push(a(e,r));return v},f=function(e,t,r,i){var a,o,s;for(null==i&&(i=n),a=e[r];r>t&&i(a,o=e[s=r-1>>1])<0;)e[r]=o,r=s;return e[r]=a},g=function(e,t,r){var i,a,o,s,l;for(null==r&&(r=n),a=e.length,l=t,o=e[t],i=2*t+1;i0;){var k=b.pop(),C=y(k),S=k.id();if(h[S]=C,C!==1/0)for(var D=k.neighborhood().intersect(f),P=0;P0)for(n.unshift(t);c[i];){var a=c[i];n.unshift(a.edge),n.unshift(a.node),i=(r=a.node).id()}return o.spawn(n)}}}},Ye={kruskal:function(e){e=e||function(e){return 1};for(var t=this.byGroup(),n=t.nodes,r=t.edges,i=n.length,a=new Array(i),o=n,s=function(e){for(var t=0;t0;){if(l=g.pop(),u=l.id(),v.delete(u),w++,u===h){for(var E=[],k=i,C=h,S=m[C];E.unshift(k),null!=S&&E.unshift(S),null!=(k=y[C]);)S=m[C=k.id()];return{found:!0,distance:d[u],path:this.spawn(E),steps:w}}f[u]=!0;for(var D=l._private.edges,P=0;PP&&(f[D]=P,m[D]=S,b[D]=w),!i){var T=S*u+C;!i&&f[T]>P&&(f[T]=P,m[T]=C,b[T]=w)}}}for(var M=0;M1&&void 0!==arguments[1]?arguments[1]:a,r=[],i=m(e);;){if(null==i)return t.spawn();var o=y(i),l=o.edge,u=o.pred;if(r.unshift(i[0]),i.same(n)&&r.length>0)break;null!=l&&r.unshift(l),i=u}return s.spawn(r)},hasNegativeWeightCycle:g,negativeWeightCycles:[]}}},Ue=Math.sqrt(2),$e=function(e,t,n){0===n.length&&Ee("Karger-Stein must be run on a connected (sub)graph");for(var r=n[e],i=r[1],a=r[2],o=t[i],s=t[a],l=n,u=l.length-1;u>=0;u--){var c=l[u],h=c[1],d=c[2];(t[h]===o&&t[d]===s||t[h]===s&&t[d]===o)&&l.splice(u,1)}for(var p=0;pr;){var i=Math.floor(Math.random()*t.length);t=$e(i,e,t),n--}return t},Je={kargerStein:function(){var e=this.byGroup(),t=e.nodes,n=e.edges;n.unmergeBy(function(e){return e.isLoop()});var r=t.length,i=n.length,a=Math.ceil(Math.pow(Math.log(r)/Math.LN2,2)),o=Math.floor(r/Ue);if(!(r<2)){for(var s=[],l=0;l1&&void 0!==arguments[1]?arguments[1]:0,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:e.length,r=1/0,i=t;i1&&void 0!==arguments[1]?arguments[1]:0,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:e.length,r=-1/0,i=t;i1&&void 0!==arguments[1]?arguments[1]:0,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:e.length,r=0,i=0,a=t;a1&&void 0!==arguments[1]?arguments[1]:0,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:e.length,r=!(arguments.length>3&&void 0!==arguments[3])||arguments[3],i=!(arguments.length>4&&void 0!==arguments[4])||arguments[4],a=!(arguments.length>5&&void 0!==arguments[5])||arguments[5];r?e=e.slice(t,n):(n0&&e.splice(0,t));for(var o=0,s=e.length-1;s>=0;s--){var l=e[s];a?isFinite(l)||(e[s]=-1/0,o++):e.splice(s,1)}i&&e.sort(function(e,t){return e-t});var u=e.length,c=Math.floor(u/2);return u%2!=0?e[c+1+o]:(e[c-1+o]+e[c+o])/2},lt=function(e){return Math.PI*e/180},ut=function(e,t){return Math.atan2(t,e)-Math.PI/2},ct=Math.log2||function(e){return Math.log(e)/Math.log(2)},ht=function(e){return e>0?1:e<0?-1:0},dt=function(e,t){return Math.sqrt(pt(e,t))},pt=function(e,t){var n=t.x-e.x,r=t.y-e.y;return n*n+r*r},ft=function(e){for(var t=e.length,n=0,r=0;r=e.x1&&e.y2>=e.y1)return{x1:e.x1,y1:e.y1,x2:e.x2,y2:e.y2,w:e.x2-e.x1,h:e.y2-e.y1};if(null!=e.w&&null!=e.h&&e.w>=0&&e.h>=0)return{x1:e.x1,y1:e.y1,x2:e.x1+e.w,y2:e.y1+e.h,w:e.w,h:e.h}}},xt=function(e){return{x1:e.x1,x2:e.x2,w:e.w,y1:e.y1,y2:e.y2,h:e.h}},wt=function(e){e.x1=1/0,e.y1=1/0,e.x2=-1/0,e.y2=-1/0,e.w=0,e.h=0},Et=function(e,t){e.x1=Math.min(e.x1,t.x1),e.x2=Math.max(e.x2,t.x2),e.w=e.x2-e.x1,e.y1=Math.min(e.y1,t.y1),e.y2=Math.max(e.y2,t.y2),e.h=e.y2-e.y1},kt=function(e,t,n){e.x1=Math.min(e.x1,t),e.x2=Math.max(e.x2,t),e.w=e.x2-e.x1,e.y1=Math.min(e.y1,n),e.y2=Math.max(e.y2,n),e.h=e.y2-e.y1},Ct=function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;return e.x1-=t,e.x2+=t,e.y1-=t,e.y2+=t,e.w=e.x2-e.x1,e.h=e.y2-e.y1,e},St=function(e,t){e.x1=t.x1,e.y1=t.y1,e.x2=t.x2,e.y2=t.y2,e.w=e.x2-e.x1,e.h=e.y2-e.y1},Dt=function(e,t){e.x1+=t.x,e.x2+=t.x,e.y1+=t.y,e.y2+=t.y},Pt=function(e,t){return!(e.x1>t.x2)&&(!(t.x1>e.x2)&&(!(e.x2t.y2)&&!(t.y1>e.y2)))))))},Tt=function(e,t,n){return e.x1<=t&&t<=e.x2&&e.y1<=n&&n<=e.y2},Mt=function(e,t){return Tt(e,t.x,t.y)},Bt=function(e,t){return Tt(e,t.x1,t.y1)&&Tt(e,t.x2,t.y2)},_t=function(e,t,n,r,i,a,o){var s,l=Qt(i,a),u=i/2,c=a/2,h=r-c-o;if((s=Ht(e,t,n,r,n-u+l-o,h,n+u-l+o,h,!1)).length>0)return s;var d=n+u+o;if((s=Ht(e,t,n,r,d,r-c+l-o,d,r+c-l+o,!1)).length>0)return s;var p=r+c+o;if((s=Ht(e,t,n,r,n-u+l-o,p,n+u-l+o,p,!1)).length>0)return s;var f,g=n-u-o;if((s=Ht(e,t,n,r,g,r-c+l-o,g,r+c-l+o,!1)).length>0)return s;var v=n-u+l,y=r-c+l;if((f=Xt(e,t,n,r,v,y,l+o)).length>0&&f[0]<=v&&f[1]<=y)return[f[0],f[1]];var m=n+u-l,b=r-c+l;if((f=Xt(e,t,n,r,m,b,l+o)).length>0&&f[0]>=m&&f[1]<=b)return[f[0],f[1]];var x=n+u-l,w=r+c-l;if((f=Xt(e,t,n,r,x,w,l+o)).length>0&&f[0]>=x&&f[1]>=w)return[f[0],f[1]];var E=n-u+l,k=r+c-l;return(f=Xt(e,t,n,r,E,k,l+o)).length>0&&f[0]<=E&&f[1]>=k?[f[0],f[1]]:[]},Nt=function(e,t,n,r,i,a,o){var s=o,l=Math.min(n,i),u=Math.max(n,i),c=Math.min(r,a),h=Math.max(r,a);return l-s<=e&&e<=u+s&&c-s<=t&&t<=h+s},It=function(e,t,n,r,i,a,o,s,l){var u=Math.min(n,o,i)-l,c=Math.max(n,o,i)+l,h=Math.min(r,s,a)-l,d=Math.max(r,s,a)+l;return!(ec||td)},zt=function(e,t,n,r){var i=t*t-4*e*(n-=r);if(i<0)return[];var a=Math.sqrt(i),o=2*e;return[(-t+a)/o,(-t-a)/o]},Lt=function(e,t,n,r,i){var a,o,s,l,u,c,h,d;return s=-27*(r/=e)+(t/=e)*(9*(n/=e)-t*t*2),a=(o=(3*n-t*t)/9)*o*o+(s/=54)*s,i[1]=0,h=t/3,a>0?(u=(u=s+Math.sqrt(a))<0?-Math.pow(-u,1/3):Math.pow(u,1/3),c=(c=s-Math.sqrt(a))<0?-Math.pow(-c,1/3):Math.pow(c,1/3),i[0]=-h+u+c,h+=(u+c)/2,i[4]=i[2]=-h,h=Math.sqrt(3)*(-c+u)/2,i[3]=h,void(i[5]=-h)):(i[5]=i[3]=0,0===a?(d=s<0?-Math.pow(-s,1/3):Math.pow(s,1/3),i[0]=2*d-h,void(i[4]=i[2]=-(d+h))):(l=(o=-o)*o*o,l=Math.acos(s/Math.sqrt(l)),d=2*Math.sqrt(o),i[0]=-h+d*Math.cos(l/3),i[2]=-h+d*Math.cos((l+2*Math.PI)/3),void(i[4]=-h+d*Math.cos((l+4*Math.PI)/3))))},At=function(e,t,n,r,i,a,o,s){var l=[];Lt(1*n*n-4*n*i+2*n*o+4*i*i-4*i*o+o*o+r*r-4*r*a+2*r*s+4*a*a-4*a*s+s*s,9*n*i-3*n*n-3*n*o-6*i*i+3*i*o+9*r*a-3*r*r-3*r*s-6*a*a+3*a*s,3*n*n-6*n*i+n*o-n*e+2*i*i+2*i*e-o*e+3*r*r-6*r*a+r*s-r*t+2*a*a+2*a*t-s*t,1*n*i-n*n+n*e-i*e+r*a-r*r+r*t-a*t,l);for(var u=[],c=0;c<6;c+=2)Math.abs(l[c+1])<1e-7&&l[c]>=0&&l[c]<=1&&u.push(l[c]);u.push(1),u.push(0);for(var h,d,p,f=-1,g=0;g=0?pl?(e-i)*(e-i)+(t-a)*(t-a):u-h},Rt=function(e,t,n){for(var r,i,a,o,s=0,l=0;l=e&&e>=a||r<=e&&e<=a))continue;(e-r)/(a-r)*(o-i)+i>t&&s++}return s%2!=0},Ft=function(e,t,n,r,i,a,o,s,l){var u,c=new Array(n.length);null!=s[0]?(u=Math.atan(s[1]/s[0]),s[0]<0?u+=Math.PI/2:u=-u-Math.PI/2):u=s;for(var h,d=Math.cos(-u),p=Math.sin(-u),f=0;f0){var g=qt(c,-l);h=Vt(g)}else h=c;return Rt(e,t,h)},Vt=function(e){for(var t,n,r,i,a,o,s,l,u=new Array(e.length/2),c=0;c=0&&f<=1&&v.push(f),g>=0&&g<=1&&v.push(g),0===v.length)return[];var y=v[0]*s[0]+e,m=v[0]*s[1]+t;return v.length>1?v[0]==v[1]?[y,m]:[y,m,v[1]*s[0]+e,v[1]*s[1]+t]:[y,m]},Wt=function(e,t,n){return t<=e&&e<=n||n<=e&&e<=t?e:e<=t&&t<=n||n<=t&&t<=e?t:n},Ht=function(e,t,n,r,i,a,o,s,l){var u=e-i,c=n-e,h=o-i,d=t-a,p=r-t,f=s-a,g=h*d-f*u,v=c*d-p*u,y=f*c-h*p;if(0!==y){var m=g/y,b=v/y;return-.001<=m&&m<=1.001&&-.001<=b&&b<=1.001?[e+m*c,t+m*p]:l?[e+m*c,t+m*p]:[]}return 0===g||0===v?Wt(e,n,o)===o?[o,s]:Wt(e,n,i)===i?[i,a]:Wt(i,o,n)===n?[n,r]:[]:[]},Kt=function(e,t,n,r,i,a,o,s){var l,u,c,h,d,p,f=[],g=new Array(n.length),v=!0;if(null==a&&(v=!1),v){for(var y=0;y0){var m=qt(g,-s);u=Vt(m)}else u=g}else u=n;for(var b=0;bu&&(u=t)},h=function(e){return l[e]},d=0;d0?b.edgesTo(m)[0]:m.edgesTo(b)[0];var w=r(x);m=m.id(),d[m]>d[v]+w&&(d[m]=d[v]+w,p.nodes.indexOf(m)<0?p.push(m):p.updateItem(m),u[m]=0,l[m]=[]),d[m]==d[v]+w&&(u[m]=u[m]+u[v],l[m].push(v))}else for(var E=0;E0;)for(var D=n.pop(),P=0;P0&&o.push(n[s]);0!==o.length&&i.push(r.collection(o))}return i}(c,l,t,r);return b=function(e){for(var t=0;t5&&void 0!==arguments[5]?arguments[5]:xn,o=r,s=0;s=2?Dn(e,t,n,0,kn,Cn):Dn(e,t,n,0,En)},squaredEuclidean:function(e,t,n){return Dn(e,t,n,0,kn)},manhattan:function(e,t,n){return Dn(e,t,n,0,En)},max:function(e,t,n){return Dn(e,t,n,-1/0,Sn)}};function Tn(e,t,n,r,i,a){var o;return o=p(e)?e:Pn[e]||Pn.euclidean,0===t&&p(e)?o(i,a):o(t,n,r,i,a)}Pn["squared-euclidean"]=Pn.squaredEuclidean,Pn.squaredeuclidean=Pn.squaredEuclidean;var Mn=Me({k:2,m:2,sensitivityThreshold:1e-4,distance:"euclidean",maxIterations:10,attributes:[],testMode:!1,testCentroids:null}),Bn=function(e){return Mn(e)},_n=function(e,t,n,r,i){var a="kMedoids"!==i?function(e){return n[e]}:function(e){return r[e](n)},o=n,s=t;return Tn(e,r.length,a,function(e){return r[e](t)},o,s)},Nn=function(e,t,n){for(var r=n.length,i=new Array(r),a=new Array(r),o=new Array(t),s=null,l=0;ln)return!1}return!0},An=function(e,t,n){for(var r=0;ri&&(i=t[l][u],a=u);o[a].push(e[l])}for(var c=0;c=i.threshold||"dendrogram"===i.mode&&1===e.length)return!1;var p,f=t[o],g=t[r[o]];p="dendrogram"===i.mode?{left:f,right:g,key:f.key}:{value:f.value.concat(g.value),key:f.key},e[f.index]=p,e.splice(g.index,1),t[f.key]=p;for(var v=0;vn[g.key][y.key]&&(a=n[g.key][y.key])):"max"===i.linkage?(a=n[f.key][y.key],n[f.key][y.key]o&&(a=l,o=t[i*e+l])}a>0&&r.push(a)}for(var u=0;u=P?(T=P,P=B,M=_):B>T&&(T=B);for(var N=0;N0?1:0;C[k%u.minIterations*t+R]=F,O+=F}if(O>0&&(k>=u.minIterations-1||k==u.maxIterations-1)){for(var V=0,q=0;q0&&r.push(i);return r}(t,a,o),X=function(e,t,n){for(var r=Qn(e,t,n),i=0;il&&(s=u,l=c)}n[i]=a[s]}return r=Qn(e,t,n)}(t,r,Y),W={},H=0;H0:void 0}},clearQueue:function(){return function(){var e=void 0!==this.length?this:[this];if(!(this._private.cy||this).styleEnabled())return this;for(var t=0;t0&&this.spawn(n).updateStyle().emit("class"),this},addClass:function(e){return this.toggleClass(e,!0)},hasClass:function(e){var t=this[0];return null!=t&&t._private.classes.has(e)},toggleClass:function(e,t){f(e)||(e=e.match(/\S+/g)||[]);for(var n=void 0===t,r=[],i=0,a=this.length;i0&&this.spawn(r).updateStyle().emit("class"),this},removeClass:function(e){return this.toggleClass(e,!1)},flashClass:function(e,t){var n=this;if(null==t)t=250;else if(0===t)return n;return n.addClass(e),setTimeout(function(){n.removeClass(e)},t),n}};dr.className=dr.classNames=dr.classes;var pr={metaChar:"[\\!\\\"\\#\\$\\%\\&\\'\\(\\)\\*\\+\\,\\.\\/\\:\\;\\<\\=\\>\\?\\@\\[\\]\\^\\`\\{\\|\\}\\~]",comparatorOp:"=|\\!=|>|>=|<|<=|\\$=|\\^=|\\*=",boolOp:"\\?|\\!|\\^",string:'"(?:\\\\"|[^"])*"|'+"'(?:\\\\'|[^'])*'",number:_,meta:"degree|indegree|outdegree",separator:"\\s*,\\s*",descendant:"\\s+",child:"\\s+>\\s+",subject:"\\$",group:"node|edge|\\*",directedEdge:"\\s+->\\s+",undirectedEdge:"\\s+<->\\s+"};pr.variable="(?:[\\w-]|(?:\\\\"+pr.metaChar+"))+",pr.value=pr.string+"|"+pr.number,pr.className=pr.variable,pr.id=pr.variable,function(){var e,t,n;for(e=pr.comparatorOp.split("|"),n=0;n=0||"="!==t&&(pr.comparatorOp+="|\\!"+t)}();var fr=0,gr=1,vr=2,yr=3,mr=4,br=5,xr=6,wr=7,Er=8,kr=9,Cr=10,Sr=11,Dr=12,Pr=13,Tr=14,Mr=15,Br=16,_r=17,Nr=18,Ir=19,zr=20,Lr=[{selector:":selected",matches:function(e){return e.selected()}},{selector:":unselected",matches:function(e){return!e.selected()}},{selector:":selectable",matches:function(e){return e.selectable()}},{selector:":unselectable",matches:function(e){return!e.selectable()}},{selector:":locked",matches:function(e){return e.locked()}},{selector:":unlocked",matches:function(e){return!e.locked()}},{selector:":visible",matches:function(e){return e.visible()}},{selector:":hidden",matches:function(e){return!e.visible()}},{selector:":transparent",matches:function(e){return e.transparent()}},{selector:":grabbed",matches:function(e){return e.grabbed()}},{selector:":free",matches:function(e){return!e.grabbed()}},{selector:":removed",matches:function(e){return e.removed()}},{selector:":inside",matches:function(e){return!e.removed()}},{selector:":grabbable",matches:function(e){return e.grabbable()}},{selector:":ungrabbable",matches:function(e){return!e.grabbable()}},{selector:":animated",matches:function(e){return e.animated()}},{selector:":unanimated",matches:function(e){return!e.animated()}},{selector:":parent",matches:function(e){return e.isParent()}},{selector:":childless",matches:function(e){return e.isChildless()}},{selector:":child",matches:function(e){return e.isChild()}},{selector:":orphan",matches:function(e){return e.isOrphan()}},{selector:":nonorphan",matches:function(e){return e.isChild()}},{selector:":compound",matches:function(e){return e.isNode()?e.isParent():e.source().isParent()||e.target().isParent()}},{selector:":loop",matches:function(e){return e.isLoop()}},{selector:":simple",matches:function(e){return e.isSimple()}},{selector:":active",matches:function(e){return e.active()}},{selector:":inactive",matches:function(e){return!e.active()}},{selector:":backgrounding",matches:function(e){return e.backgrounding()}},{selector:":nonbackgrounding",matches:function(e){return!e.backgrounding()}}].sort(function(e,t){return function(e,t){return-1*N(e,t)}(e.selector,t.selector)}),Ar=function(){for(var e,t={},n=0;n0&&l.edgeCount>0)return Ce("The selector `"+e+"` is invalid because it uses both a compound selector and an edge selector"),!1;if(l.edgeCount>1)return Ce("The selector `"+e+"` is invalid because it uses multiple edge selectors"),!1;1===l.edgeCount&&Ce("The selector `"+e+"` is deprecated. Edge selectors do not take effect on changes to source and target nodes after an edge is added, for performance reasons. Use a class or data selector on edges instead, updating the class or data of an edge when your app detects a change in source or target nodes.")}return!0},toString:function(){if(null!=this.toStringCache)return this.toStringCache;for(var e=function(e){return null==e?"":e},t=function(t){return d(t)?'"'+t+'"':e(t)},n=function(e){return" "+e+" "},r=function(r,a){var o=r.type,s=r.value;switch(o){case fr:var l=e(s);return l.substring(0,l.length-1);case yr:var u=r.field,c=r.operator;return"["+u+n(e(c))+t(s)+"]";case br:var h=r.operator,d=r.field;return"["+e(h)+d+"]";case mr:return"["+r.field+"]";case xr:var p=r.operator;return"[["+r.field+n(e(p))+t(s)+"]]";case wr:return s;case Er:return"#"+s;case kr:return"."+s;case _r:case Mr:return i(r.parent,a)+n(">")+i(r.child,a);case Nr:case Br:return i(r.ancestor,a)+" "+i(r.descendant,a);case Ir:var f=i(r.left,a),g=i(r.subject,a),v=i(r.right,a);return f+(f.length>0?" ":"")+g+v;case zr:return""}},i=function(e,t){return e.checks.reduce(function(n,i,a){return n+(t===e&&0===a?"$":"")+r(i,t)},"")},a="",o=0;o1&&o=0&&(t=t.replace("!",""),c=!0),t.indexOf("@")>=0&&(t=t.replace("@",""),u=!0),(o||l||u)&&(i=o||s?""+e:"",a=""+n),u&&(e=i=i.toLowerCase(),n=a=a.toLowerCase()),t){case"*=":r=i.indexOf(a)>=0;break;case"$=":r=i.indexOf(a,i.length-a.length)>=0;break;case"^=":r=0===i.indexOf(a);break;case"=":r=e===n;break;case">":h=!0,r=e>n;break;case">=":h=!0,r=e>=n;break;case"<":h=!0,r=e0;){var u=i.shift();t(u),a.add(u.id()),o&&r(i,a,u)}return e}function ti(e,t,n){if(n.isParent())for(var r=n._private.children,i=0;i1&&void 0!==arguments[1])||arguments[1],ti)},Jr.forEachUp=function(e){return ei(this,e,!(arguments.length>1&&void 0!==arguments[1])||arguments[1],ni)},Jr.forEachUpAndDown=function(e){return ei(this,e,!(arguments.length>1&&void 0!==arguments[1])||arguments[1],ri)},Jr.ancestors=Jr.parents,(Ur=$r={data:cr.data({field:"data",bindingEvent:"data",allowBinding:!0,allowSetting:!0,settingEvent:"data",settingTriggersEvent:!0,triggerFnName:"trigger",allowGetting:!0,immutableKeys:{id:!0,source:!0,target:!0,parent:!0},updateStyle:!0}),removeData:cr.removeData({field:"data",event:"data",triggerFnName:"trigger",triggerEvent:!0,immutableKeys:{id:!0,source:!0,target:!0,parent:!0},updateStyle:!0}),scratch:cr.data({field:"scratch",bindingEvent:"scratch",allowBinding:!0,allowSetting:!0,settingEvent:"scratch",settingTriggersEvent:!0,triggerFnName:"trigger",allowGetting:!0,updateStyle:!0}),removeScratch:cr.removeData({field:"scratch",event:"scratch",triggerFnName:"trigger",triggerEvent:!0,updateStyle:!0}),rscratch:cr.data({field:"rscratch",allowBinding:!1,allowSetting:!0,settingTriggersEvent:!1,allowGetting:!0}),removeRscratch:cr.removeData({field:"rscratch",triggerEvent:!1}),id:function(){var e=this[0];if(e)return e._private.data.id}}).attr=Ur.data,Ur.removeAttr=Ur.removeData;var ii,ai,oi=$r,si={};function li(e){return function(t){if(void 0===t&&(t=!0),0!==this.length&&this.isNode()&&!this.removed()){for(var n=0,r=this[0],i=r._private.edges,a=0;at}),minIndegree:ui("indegree",function(e,t){return et}),minOutdegree:ui("outdegree",function(e,t){return et})}),I(si,{totalDegree:function(e){for(var t=0,n=this.nodes(),r=0;r0,c=u;u&&(l=l[0]);var h=c?l.position():{x:0,y:0};return i={x:s.x-h.x,y:s.y-h.y},void 0===e?i:i[e]}for(var p=0;p0,m=y;y&&(v=v[0]);var b=m?v.position():{x:0,y:0};void 0!==t?f.position(e,t+b[e]):void 0!==i&&f.position({x:i.x+b.x,y:i.y+b.y})}}else if(!a)return;return this}}).modelPosition=ii.point=ii.position,ii.modelPositions=ii.points=ii.positions,ii.renderedPoint=ii.renderedPosition,ii.relativePoint=ii.relativePosition;var di,pi,fi=ai;di=pi={},pi.renderedBoundingBox=function(e){var t=this.boundingBox(e),n=this.cy(),r=n.zoom(),i=n.pan(),a=t.x1*r+i.x,o=t.x2*r+i.x,s=t.y1*r+i.y,l=t.y2*r+i.y;return{x1:a,x2:o,y1:s,y2:l,w:o-a,h:l-s}},pi.dirtyCompoundBoundsCache=function(){var e=this.cy();return e.styleEnabled()&&e.hasCompoundNodes()?(this.forEachUp(function(e){if(e.isParent()){var t=e._private;t.compoundBoundsClean=!1,t.bbCache=null,e.emitAndNotify("bounds")}}),this):this},pi.updateCompoundBounds=function(){var e=arguments.length>0&&void 0!==arguments[0]&&arguments[0],t=this.cy();if(!t.styleEnabled()||!t.hasCompoundNodes())return this;if(!e&&t.batching())return this;function n(e){if(e.isParent()){var t=e._private,n=e.children(),r="include"===e.pstyle("compound-sizing-wrt-labels").value,i={width:{val:e.pstyle("min-width").pfValue,left:e.pstyle("min-width-bias-left"),right:e.pstyle("min-width-bias-right")},height:{val:e.pstyle("min-height").pfValue,top:e.pstyle("min-height-bias-top"),bottom:e.pstyle("min-height-bias-bottom")}},a=n.filter(function(e){return"element"===e.pstyle("display").value}).boundingBox({includeLabels:r,includeOverlays:!1,useCache:!1}),o=t.position;0!==a.w&&0!==a.h||((a={w:e.pstyle("width").pfValue,h:e.pstyle("height").pfValue}).x1=o.x-a.w/2,a.x2=o.x+a.w/2,a.y1=o.y-a.h/2,a.y2=o.y+a.h/2);var s=i.width.left.value;"px"===i.width.left.units&&i.width.val>0&&(s=100*s/i.width.val);var l=i.width.right.value;"px"===i.width.right.units&&i.width.val>0&&(l=100*l/i.width.val);var u=i.height.top.value;"px"===i.height.top.units&&i.height.val>0&&(u=100*u/i.height.val);var c=i.height.bottom.value;"px"===i.height.bottom.units&&i.height.val>0&&(c=100*c/i.height.val);var h=y(i.width.val-a.w,s,l),d=h.biasDiff,p=h.biasComplementDiff,f=y(i.height.val-a.h,u,c),g=f.biasDiff,v=f.biasComplementDiff;t.autoPadding=function(e,t,n,r){if("%"!==n.units)return"px"===n.units?n.pfValue:0;switch(r){case"width":return e>0?n.pfValue*e:0;case"height":return t>0?n.pfValue*t:0;case"average":return e>0&&t>0?n.pfValue*(e+t)/2:0;case"min":return e>0&&t>0?e>t?n.pfValue*t:n.pfValue*e:0;case"max":return e>0&&t>0?e>t?n.pfValue*e:n.pfValue*t:0;default:return 0}}(a.w,a.h,e.pstyle("padding"),e.pstyle("padding-relative-to").value),t.autoWidth=Math.max(a.w,i.width.val),o.x=(-d+a.x1+a.x2+p)/2,t.autoHeight=Math.max(a.h,i.height.val),o.y=(-g+a.y1+a.y2+v)/2}function y(e,t,n){var r=0,i=0,a=t+n;return e>0&&a>0&&(r=t/a*e,i=n/a*e),{biasDiff:r,biasComplementDiff:i}}}for(var r=0;re.x2?r:e.x2,e.y1=ne.y2?i:e.y2,e.w=e.x2-e.x1,e.h=e.y2-e.y1)},yi=function(e,t){return null==t?e:vi(e,t.x1,t.y1,t.x2,t.y2)},mi=function(e,t,n){return Ne(e,t,n)},bi=function(e,t,n){if(!t.cy().headless()){var r,i,a=t._private,o=a.rstyle,s=o.arrowWidth/2;if("none"!==t.pstyle(n+"-arrow-shape").value){"source"===n?(r=o.srcX,i=o.srcY):"target"===n?(r=o.tgtX,i=o.tgtY):(r=o.midX,i=o.midY);var l=a.arrowBounds=a.arrowBounds||{},u=l[n]=l[n]||{};u.x1=r-s,u.y1=i-s,u.x2=r+s,u.y2=i+s,u.w=u.x2-u.x1,u.h=u.y2-u.y1,Ct(u,1),vi(e,u.x1,u.y1,u.x2,u.y2)}}},xi=function(e,t,n){if(!t.cy().headless()){var r;r=n?n+"-":"";var i=t._private,a=i.rstyle;if(t.pstyle(r+"label").strValue){var o,s,l,u,c=t.pstyle("text-halign"),h=t.pstyle("text-valign"),d=mi(a,"labelWidth",n),p=mi(a,"labelHeight",n),f=mi(a,"labelX",n),g=mi(a,"labelY",n),v=t.pstyle(r+"text-margin-x").pfValue,y=t.pstyle(r+"text-margin-y").pfValue,m=t.isEdge(),b=t.pstyle(r+"text-rotation"),x=t.pstyle("text-outline-width").pfValue,w=t.pstyle("text-border-width").pfValue/2,E=t.pstyle("text-background-padding").pfValue,k=p,C=d,S=C/2,D=k/2;if(m)o=f-S,s=f+S,l=g-D,u=g+D;else{switch(c.value){case"left":o=f-C,s=f;break;case"center":o=f-S,s=f+S;break;case"right":o=f,s=f+C}switch(h.value){case"top":l=g-k,u=g;break;case"center":l=g-D,u=g+D;break;case"bottom":l=g,u=g+k}}o+=v-Math.max(x,w)-E,s+=v+Math.max(x,w)+E,l+=y-Math.max(x,w)-E,u+=y+Math.max(x,w)+E;var P=n||"main",T=i.labelBounds,M=T[P]=T[P]||{};M.x1=o,M.y1=l,M.x2=s,M.y2=u,M.w=s-o,M.h=u-l,Ct(M,1);var B=m&&"autorotate"===b.strValue,_=null!=b.pfValue&&0!==b.pfValue;if(B||_){var N=B?mi(i.rstyle,"labelAngle",n):b.pfValue,I=Math.cos(N),z=Math.sin(N),L=(o+s)/2,A=(l+u)/2;if(!m){switch(c.value){case"left":L=s;break;case"right":L=o}switch(h.value){case"top":A=u;break;case"bottom":A=l}}var O=function(e,t){return{x:(e-=L)*I-(t-=A)*z+L,y:e*z+t*I+A}},R=O(o,l),F=O(o,u),V=O(s,l),q=O(s,u);o=Math.min(R.x,F.x,V.x,q.x),s=Math.max(R.x,F.x,V.x,q.x),l=Math.min(R.y,F.y,V.y,q.y),u=Math.max(R.y,F.y,V.y,q.y)}vi(e,o,l,s,u),vi(i.labelBounds.all,o,l,s,u)}return e}},wi=function(e){var t=0,n=function(e){return(e?1:0)<(r=C[1].x)){var S=n;n=r,r=S}if(i>(a=C[1].y)){var D=i;i=a,a=D}vi(h,n-x,i-x,r+x,a+x)}else{for(var P=y.bezierPts||y.linePts||[],T=0;T(r=_.x)){var N=n;n=r,r=N}if((i=B.y)>(a=_.y)){var I=i;i=a,a=I}vi(h,n-=x,i-=x,r+=x,a+=x)}}if(u&&t.includeEdges&&g&&(bi(h,e,"mid-source"),bi(h,e,"mid-target"),bi(h,e,"source"),bi(h,e,"target")),u&&"yes"===e.pstyle("ghost").value){var z=e.pstyle("ghost-offset-x").pfValue,L=e.pstyle("ghost-offset-y").pfValue;vi(h,h.x1+z,h.y1+L,h.x2+z,h.y2+L)}var A=d.bodyBounds=d.bodyBounds||{};St(A,h),Ct(A,m),Ct(A,1),u&&(n=h.x1,r=h.x2,i=h.y1,a=h.y2,vi(h,n-b,i-b,r+b,a+b));var O=d.overlayBounds=d.overlayBounds||{};St(O,h),Ct(O,m),Ct(O,1);var R=d.labelBounds=d.labelBounds||{};null!=R.all?wt(R.all):R.all=bt(),u&&t.includeLabels&&(xi(h,e,null),g&&(xi(h,e,"source"),xi(h,e,"target")))}return h.x1=gi(h.x1),h.y1=gi(h.y1),h.x2=gi(h.x2),h.y2=gi(h.y2),h.w=gi(h.x2-h.x1),h.h=gi(h.y2-h.y1),h.w>0&&h.h>0&&v&&(Ct(h,m),Ct(h,1)),h}(e,Ci),r.bbCache=n,r.bbCacheShift.x=r.bbCacheShift.y=0,r.bbCachePosKey=a):n=r.bbCache,!s&&(0!==r.bbCacheShift.x||0!==r.bbCacheShift.y)){var l=Dt,u=r.bbCacheShift,c=function(e,t){null!=e&&l(e,t)};l(n,u);var h=r.bodyBounds,d=r.overlayBounds,p=r.labelBounds,f=r.arrowBounds;c(h,u),c(d,u),null!=f&&(c(f.source,u),c(f.target,u),c(f["mid-source"],u),c(f["mid-target"],u)),null!=p&&(c(p.main,u),c(p.all,u),c(p.source,u),c(p.target,u))}if(r.bbCacheShift.x=r.bbCacheShift.y=0,!i){var g=e.isNode();n=bt(),(t.includeNodes&&g||t.includeEdges&&!g)&&(t.includeOverlays?yi(n,r.overlayBounds):yi(n,r.bodyBounds)),t.includeLabels&&yi(n,r.labelBounds.all),n.w=n.x2-n.x1,n.h=n.y2-n.y1}return n},Ci={includeNodes:!0,includeEdges:!0,includeLabels:!0,includeOverlays:!0,useCache:!0},Si=wi(Ci),Di=Me(Ci);pi.boundingBox=function(e){if(1===this.length&&null!=this[0]._private.bbCache&&(void 0===e||void 0===e.useCache||!0===e.useCache))return e=void 0===e?Ci:Di(e),ki(this[0],e);var t=bt(),n=Di(e=e||Ci);if(this.cy().styleEnabled())for(var r=0;r0&&void 0!==arguments[0]?arguments[0]:qi,t=arguments.length>1?arguments[1]:void 0,n=0;n=0;s--)o(s);return this},Yi.removeAllListeners=function(){return this.removeListener("*")},Yi.emit=Yi.trigger=function(e,t,n){var r=this.listeners,i=r.length;return this.emitting++,f(t)||(t=[t]),Hi(this,function(e,a){null!=n&&(r=[{event:a.event,type:a.type,namespace:a.namespace,callback:n}],i=r.length);for(var o=function(n){var i=r[n];if(i.type===a.type&&(!i.namespace||i.namespace===a.namespace||".*"===i.namespace)&&e.eventMatches(e.context,i,a)){var o=[a];null!=t&&function(e,t){for(var n=0;n1&&!r){var i=this.length-1,a=this[i],o=a._private.data.id;this[i]=void 0,this[e]=a,n.set(o,{ele:a,index:e})}return this.length--,this},unmergeOne:function(e){e=e[0];var t=this._private,n=e._private.data.id,r=t.map.get(n);if(!r)return this;var i=r.index;return this.unmergeAt(i),this},unmerge:function(e){var t=this._private.cy;if(!e)return this;if(e&&d(e)){var n=e;e=t.mutableElements().filter(n)}for(var r=0;r=0;t--){e(this[t])&&this.unmergeAt(t)}return this},map:function(e,t){for(var n=[],r=0;rr&&(r=o,n=a)}return{value:r,ele:n}},min:function(e,t){for(var n,r=1/0,i=0;i=0&&i1&&void 0!==arguments[1])||arguments[1],n=this[0],r=n.cy();if(r.styleEnabled()&&n){var i=n._private.style[e];return null!=i?i:t?r.style().getDefaultProperty(e):null}},numericStyle:function(e){var t=this[0];if(t.cy().styleEnabled()&&t){var n=t.pstyle(e);return void 0!==n.pfValue?n.pfValue:n.value}},numericStyleUnits:function(e){var t=this[0];if(t.cy().styleEnabled())return t?t.pstyle(e).units:void 0},renderedStyle:function(e){var t=this.cy();if(!t.styleEnabled())return this;var n=this[0];return n?t.style().getRenderedStyle(n,e):void 0},style:function(e,t){var n=this.cy();if(!n.styleEnabled())return this;var r=n.style();if(g(e)){var i=e;r.applyBypass(this,i,!1),this.emitAndNotify("style")}else if(d(e)){if(void 0===t){var a=this[0];return a?r.getStylePropertyValue(a,e):void 0}r.applyBypass(this,e,t,!1),this.emitAndNotify("style")}else if(void 0===e){var o=this[0];return o?r.getRawStyle(o):void 0}return this},removeStyle:function(e){var t=this.cy();if(!t.styleEnabled())return this;var n=t.style();if(void 0===e)for(var r=0;r0&&t.push(c[0]),t.push(s[0])}return this.spawn(t,{unique:!0}).filter(e)},"neighborhood"),closedNeighborhood:function(e){return this.neighborhood().add(this).filter(e)},openNeighborhood:function(e){return this.neighborhood(e)}}),va.neighbourhood=va.neighborhood,va.closedNeighbourhood=va.closedNeighborhood,va.openNeighbourhood=va.openNeighborhood,I(va,{source:Qr(function(e){var t,n=this[0];return n&&(t=n._private.source||n.cy().collection()),t&&e?t.filter(e):t},"source"),target:Qr(function(e){var t,n=this[0];return n&&(t=n._private.target||n.cy().collection()),t&&e?t.filter(e):t},"target"),sources:xa({attr:"source"}),targets:xa({attr:"target"})}),I(va,{edgesWith:Qr(wa(),"edgesWith"),edgesTo:Qr(wa({thisIsSrc:!0}),"edgesTo")}),I(va,{connectedEdges:Qr(function(e){for(var t=[],n=0;n0);return a},component:function(){var e=this[0];return e.cy().mutableElements().components(e)[0]}}),va.componentsOf=va.components;var ka=function(e,t,n){for(var r=null!=n?n:De();e.hasElementWithId(r);)r=De();return r},Ca=function(e,t,n){if(void 0!==e&&w(e)){var r=new ze,i=!1;if(t){if(t.length>0&&g(t[0])&&!b(t[0])){i=!0;for(var a=[],o=new Ae,s=0,l=t.length;s0&&void 0!==arguments[0])||arguments[0],r=!(arguments.length>1&&void 0!==arguments[1])||arguments[1],i=this.cy(),a=i._private,o=[],s=[],l=0,u=this.length;l0){for(var A=new Ca(i,e),O=0;O0&&void 0!==arguments[0])||arguments[0],t=!(arguments.length>1&&void 0!==arguments[1])||arguments[1],n=[],r={},i=this._private.cy;function a(e){var i=r[e.id()];t&&e.removed()||i||(r[e.id()]=!0,e.isNode()?(n.push(e),function(e){for(var t=e._private.edges,n=0;n0&&(e?E.emitAndNotify("remove"):t&&E.emit("remove"));for(var k=0;k=a?function(t,r){for(var a=0;a0?i=l:r=l}while(Math.abs(a)>o&&++u1e-4&&Math.abs(s.v)>1e-4;);return a?function(e){return u[e*(u.length-1)|0]}:c}}(),Ma=function(e,t,n,r){var i=Pa(e,t,n,r);return function(e,t,n){return e+(t-e)*i(n)}},Ba={linear:function(e,t,n){return e+(t-e)*n},ease:Ma(.25,.1,.25,1),"ease-in":Ma(.42,0,1,1),"ease-out":Ma(0,0,.58,1),"ease-in-out":Ma(.42,0,.58,1),"ease-in-sine":Ma(.47,0,.745,.715),"ease-out-sine":Ma(.39,.575,.565,1),"ease-in-out-sine":Ma(.445,.05,.55,.95),"ease-in-quad":Ma(.55,.085,.68,.53),"ease-out-quad":Ma(.25,.46,.45,.94),"ease-in-out-quad":Ma(.455,.03,.515,.955),"ease-in-cubic":Ma(.55,.055,.675,.19),"ease-out-cubic":Ma(.215,.61,.355,1),"ease-in-out-cubic":Ma(.645,.045,.355,1),"ease-in-quart":Ma(.895,.03,.685,.22),"ease-out-quart":Ma(.165,.84,.44,1),"ease-in-out-quart":Ma(.77,0,.175,1),"ease-in-quint":Ma(.755,.05,.855,.06),"ease-out-quint":Ma(.23,1,.32,1),"ease-in-out-quint":Ma(.86,0,.07,1),"ease-in-expo":Ma(.95,.05,.795,.035),"ease-out-expo":Ma(.19,1,.22,1),"ease-in-out-expo":Ma(1,0,0,1),"ease-in-circ":Ma(.6,.04,.98,.335),"ease-out-circ":Ma(.075,.82,.165,1),"ease-in-out-circ":Ma(.785,.135,.15,.86),spring:function(e,t,n){if(0===n)return Ba.linear;var r=Ta(e,t,n);return function(e,t,n){return e+(t-e)*r(n)}},"cubic-bezier":Ma};function _a(e,t,n,r,i){if(1===r)return n;var a=i(t,n,r);return null==e?a:((e.roundValue||e.color)&&(a=Math.round(a)),void 0!==e.min&&(a=Math.max(a,e.min)),void 0!==e.max&&(a=Math.min(a,e.max)),a)}function Na(e,t){return null!=e.pfValue||null!=e.value?null==e.pfValue||null!=t&&"%"===t.type.units?e.value:e.pfValue:e}function Ia(e,t,n,r,i){var a=null!=i?i.type:null;n<0?n=0:n>1&&(n=1);var o=Na(e,i),s=Na(t,i);if(v(o)&&v(s))return _a(a,o,s,n,r);if(f(o)&&f(s)){for(var l=[],u=0;u0?("spring"===h&&p.push(o.duration),o.easingImpl=Ba[h].apply(null,p)):o.easingImpl=Ba[h]}var f,g=o.easingImpl;if(f=0===o.duration?1:(n-l)/o.duration,o.applying&&(f=o.progress),f<0?f=0:f>1&&(f=1),null==o.delay){var v=o.startPosition,y=o.position;if(y&&i&&!e.locked()){var m={};La(v.x,y.x)&&(m.x=Ia(v.x,y.x,f,g)),La(v.y,y.y)&&(m.y=Ia(v.y,y.y,f,g)),e.position(m)}var b=o.startPan,x=o.pan,w=a.pan,E=null!=x&&r;E&&(La(b.x,x.x)&&(w.x=Ia(b.x,x.x,f,g)),La(b.y,x.y)&&(w.y=Ia(b.y,x.y,f,g)),e.emit("pan"));var k=o.startZoom,C=o.zoom,S=null!=C&&r;S&&(La(k,C)&&(a.zoom=mt(a.minZoom,Ia(k,C,f,g),a.maxZoom)),e.emit("zoom")),(E||S)&&e.emit("viewport");var D=o.style;if(D&&D.length>0&&i){for(var P=0;P=0;t--){(0,e[t])()}e.splice(0,e.length)},h=a.length-1;h>=0;h--){var d=a[h],p=d._private;p.stopped?(a.splice(h,1),p.hooked=!1,p.playing=!1,p.started=!1,c(p.frames)):(p.playing||p.applying)&&(p.playing&&p.applying&&(p.applying=!1),p.started||Aa(0,d,e),za(t,d,e,n),p.applying&&(p.applying=!1),c(p.frames),null!=p.step&&p.step(e),d.completed()&&(a.splice(h,1),p.hooked=!1,p.playing=!1,p.started=!1,c(p.completes)),s=!0)}return n||0!==a.length||0!==o.length||r.push(t),s}for(var a=!1,o=0;o0?t.notify("draw",n):t.notify("draw")),n.unmerge(r),t.emit("step")}var Ra={animate:cr.animate(),animation:cr.animation(),animated:cr.animated(),clearQueue:cr.clearQueue(),delay:cr.delay(),delayAnimation:cr.delayAnimation(),stop:cr.stop(),addToAnimationPool:function(e){this.styleEnabled()&&this._private.aniEles.merge(e)},stopAnimationLoop:function(){this._private.animationsRunning=!1},startAnimationLoop:function(){var e=this;if(e._private.animationsRunning=!0,e.styleEnabled()){var t=e.renderer();t&&t.beforeRender?t.beforeRender(function(t,n){Oa(n,e)},t.beforeRenderPriorities.animations):function t(){e._private.animationsRunning&&oe(function(n){Oa(n,e),t()})}()}}},Fa={qualifierCompare:function(e,t){return null==e||null==t?null==e&&null==t:e.sameText(t)},eventMatches:function(e,t,n){var r=t.qualifier;return null==r||e!==n.target&&b(n.target)&&r.matches(n.target)},addEventFields:function(e,t){t.cy=e,t.target=e},callbackContext:function(e,t,n){return null!=t.qualifier?n.target:e}},Va=function(e){return d(e)?new Kr(e):e},qa={createEmitter:function(){var e=this._private;return e.emitter||(e.emitter=new ji(Fa,this)),this},emitter:function(){return this._private.emitter},on:function(e,t,n){return this.emitter().on(e,Va(t),n),this},removeListener:function(e,t,n){return this.emitter().removeListener(e,Va(t),n),this},removeAllListeners:function(){return this.emitter().removeAllListeners(),this},one:function(e,t,n){return this.emitter().one(e,Va(t),n),this},once:function(e,t,n){return this.emitter().one(e,Va(t),n),this},emit:function(e,t){return this.emitter().emit(e,t),this},emitAndNotify:function(e,t){return this.emit(e),this.notify(e,t),this}};cr.eventAliasesOn(qa);var ja={png:function(e){return e=e||{},this._private.renderer.png(e)},jpg:function(e){var t=this._private.renderer;return(e=e||{}).bg=e.bg||"#fff",t.jpg(e)}};ja.jpeg=ja.jpg;var Ya={layout:function(e){if(null!=e)if(null!=e.name){var t=e.name,n=this.extension("layout",t);if(null!=n){var r;r=d(e.eles)?this.$(e.eles):null!=e.eles?e.eles:this.$();var i=new n(I({},e,{cy:this,eles:r}));return i}Ee("No such layout `"+t+"` found. Did you forget to import it and `cytoscape.use()` it?")}else Ee("A `name` must be specified to make a layout");else Ee("Layout options must be specified to make a layout")}};Ya.createLayout=Ya.makeLayout=Ya.layout;var Xa={notify:function(e,t){var n=this._private;if(this.batching()){n.batchNotifications=n.batchNotifications||{};var r=n.batchNotifications[e]=n.batchNotifications[e]||this.collection();null!=t&&r.merge(t)}else if(n.notificationsEnabled){var i=this.renderer();!this.destroyed()&&i&&i.notify(e,t)}},notifications:function(e){var t=this._private;return void 0===e?t.notificationsEnabled:(t.notificationsEnabled=!!e,this)},noNotifications:function(e){this.notifications(!1),e(),this.notifications(!0)},batching:function(){return this._private.batchCount>0},startBatch:function(){var e=this._private;return null==e.batchCount&&(e.batchCount=0),0===e.batchCount&&(e.batchStyleEles=this.collection(),e.batchNotifications={}),e.batchCount++,this},endBatch:function(){var e=this._private;if(0===e.batchCount)return this;if(e.batchCount--,0===e.batchCount){e.batchStyleEles.updateStyle();var t=this.renderer();Object.keys(e.batchNotifications).forEach(function(n){var r=e.batchNotifications[n];r.empty()?t.notify(n):t.notify(n,r)})}return this},batch:function(e){return this.startBatch(),e(),this.endBatch(),this},batchData:function(e){var t=this;return this.batch(function(){for(var n=Object.keys(e),r=0;r0;)e.removeChild(e.childNodes[0]);this._private.renderer=null,this.mutableElements().forEach(function(e){var t=e._private;t.rscratch={},t.rstyle={},t.animation.current=[],t.animation.queue=[]})},onRender:function(e){return this.on("render",e)},offRender:function(e){return this.off("render",e)}};Ha.invalidateDimensions=Ha.resize;var Ka={collection:function(e,t){return d(e)?this.$(e):m(e)?e.collection():f(e)?new Ca(this,e,t):new Ca(this)},nodes:function(e){var t=this.$(function(e){return e.isNode()});return e?t.filter(e):t},edges:function(e){var t=this.$(function(e){return e.isEdge()});return e?t.filter(e):t},$:function(e){var t=this._private.elements;return e?t.filter(e):t.spawnSelf()},mutableElements:function(){return this._private.elements}};Ka.elements=Ka.filter=Ka.$;var Ga={};Ga.apply=function(e){var t=this._private,n=t.cy.collection();t.newStyle&&(t.contextStyles={},t.propDiffs={},this.cleanElements(e,!0));for(var r=0;r0;if(h||c&&d){var p=void 0;h&&d?p=l.properties:h?p=l.properties:d&&(p=l.mappedProperties);for(var f=0;f1&&(g=1),s.color){var w=i.valueMin[0],E=i.valueMax[0],k=i.valueMin[1],C=i.valueMax[1],S=i.valueMin[2],D=i.valueMax[2],P=null==i.valueMin[3]?1:i.valueMin[3],T=null==i.valueMax[3]?1:i.valueMax[3],M=[Math.round(w+(E-w)*g),Math.round(k+(C-k)*g),Math.round(S+(D-S)*g),Math.round(P+(T-P)*g)];n={bypass:i.bypass,name:i.name,value:M,strValue:"rgb("+M[0]+", "+M[1]+", "+M[2]+")"}}else{if(!s.number)return!1;var B=i.valueMin+(i.valueMax-i.valueMin)*g;n=this.parse(i.name,B,i.bypass,"mapping")}if(!n)return f(),!1;n.mapping=i,i=n;break;case o.data:for(var _=i.field.split("."),N=h.data,I=0;I<_.length&&N;I++){N=N[_[I]]}if(null!=N&&(n=this.parse(i.name,N,i.bypass,"mapping")),!n)return f(),!1;n.mapping=i,i=n;break;case o.fn:var z=i.value,L=null!=i.fnValue?i.fnValue:z(e);if(i.prevFnValue=L,null==L)return Ce("Custom function mappers may not return null (i.e. `"+i.name+"` for ele `"+e.id()+"` is null)"),!1;if(!(n=this.parse(i.name,L,i.bypass,"mapping")))return Ce("Custom function mappers may not return invalid values for the property type (i.e. `"+i.name+"` for ele `"+e.id()+"` is invalid)"),!1;n.mapping=Se(i),i=n;break;case void 0:break;default:return!1}return l?(i.bypassed=c?u.bypassed:u,a[i.name]=i):c?u.bypassed=i:a[i.name]=i,p(),!0},Ga.cleanElements=function(e,t){for(var n=0;n0&&a>0){for(var s={},l=!1,u=0;u0?e.delayAnimation(o).play().promise().then(t):t()}).then(function(){return e.animation({style:s,duration:a,easing:e.pstyle("transition-timing-function").value,queue:!1}).play().promise()}).then(function(){n.removeBypasses(e,i),e.emitAndNotify("style"),r.transitioning=!1})}else r.transitioning&&(this.removeBypasses(e,i),e.emitAndNotify("style"),r.transitioning=!1)},Ga.checkTrigger=function(e,t,n,r,i,a){var o=this.properties[t],s=i(o);null!=s&&s(n,r)&&a(o)},Ga.checkZOrderTrigger=function(e,t,n,r){var i=this;this.checkTrigger(e,t,n,r,function(e){return e.triggersZOrder},function(){i._private.cy.notify("zorder",e)})},Ga.checkBoundsTrigger=function(e,t,n,r){this.checkTrigger(e,t,n,r,function(e){return e.triggersBounds},function(i){e.dirtyCompoundBoundsCache(),e.dirtyBoundingBoxCache(),"bezier"!==e.pstyle("curve-style").value&&("curve-style"!==t||"bezier"!==n&&"bezier"!==r)||!i.triggersBoundsOfParallelBeziers||e.parallelEdges().forEach(function(e){e.isBundledBezier()&&e.dirtyBoundingBoxCache()})})},Ga.checkTriggers=function(e,t,n,r){e.dirtyStyleCache(),this.checkZOrderTrigger(e,t,n,r),this.checkBoundsTrigger(e,t,n,r)};var Za={applyBypass:function(e,t,n,r){var i=[];if("*"===t||"**"===t){if(void 0!==n)for(var a=0;at.length?i.substr(t.length):""}function o(){n=n.length>r.length?n.substr(r.length):""}for(i=i.replace(/[\/][*](\s|.)+?[*][\/]/g,"");;){if(i.match(/^\s*$/))break;var s=i.match(/^\s*((?:.|\s)+?)\s*\{((?:.|\s)+?)\}/);if(!s){Ce("Halting stylesheet parsing: String stylesheet contains more to parse but no selector and block found in: "+i);break}t=s[0];var l=s[1];if("core"!==l)if(new Kr(l).invalid){Ce("Skipping parsing of block: Invalid selector found in string stylesheet: "+l),a();continue}var u=s[2],c=!1;n=u;for(var h=[];;){if(n.match(/^\s*$/))break;var d=n.match(/^\s*(.+?)\s*:\s*(.+?)\s*;/);if(!d){Ce("Skipping parsing of block: Invalid formatting of style property and value definitions found in:"+u),c=!0;break}r=d[0];var p=d[1],f=d[2];if(this.properties[p])this.parse(p,f)?(h.push({name:p,val:f}),o()):(Ce("Skipping property: Invalid property definition in: "+r),o());else Ce("Skipping property: Invalid property name in: "+r),o()}if(c){a();break}this.selector(l);for(var g=0;g=7&&"d"===t[0]&&(l=new RegExp(o.data.regex).exec(t))){if(n)return!1;var h=o.data;return{name:e,value:l,strValue:""+t,mapped:h,field:l[1],bypass:n}}if(t.length>=10&&"m"===t[0]&&(u=new RegExp(o.mapData.regex).exec(t))){if(n)return!1;if(c.multiple)return!1;var g=o.mapData;if(!c.color&&!c.number)return!1;var y=this.parse(e,u[4]);if(!y||y.mapped)return!1;var m=this.parse(e,u[5]);if(!m||m.mapped)return!1;if(y.pfValue===m.pfValue||y.strValue===m.strValue)return Ce("`"+e+": "+t+"` is not a valid mapper because the output range is zero; converting to `"+e+": "+y.strValue+"`"),this.parse(e,y.strValue);if(c.color){var b=y.value,x=m.value;if(!(b[0]!==x[0]||b[1]!==x[1]||b[2]!==x[2]||b[3]!==x[3]&&(null!=b[3]&&1!==b[3]||null!=x[3]&&1!==x[3])))return!1}return{name:e,value:u,strValue:""+t,mapped:g,field:u[1],fieldMin:parseFloat(u[2]),fieldMax:parseFloat(u[3]),valueMin:y.value,valueMax:m.value,bypass:n}}}if(c.multiple&&"multiple"!==r){var w;if(w=s?t.split(/\s+/):f(t)?t:[t],c.evenMultiple&&w.length%2!=0)return null;for(var E=[],k=[],C=[],S="",D=!1,T=0;T0?" ":"")+M.strValue}return c.validate&&!c.validate(E,k)?null:c.singleEnum&&D?1===E.length&&d(E[0])?{name:e,value:E[0],strValue:E[0],bypass:n}:null:{name:e,value:E,pfValue:C,strValue:S,bypass:n,units:k}}var B,N=function(){for(var r=0;rc.max||c.strictMax&&t===c.max))return null;var R={name:e,value:t,strValue:""+t+(I||""),units:I,bypass:n};return c.unitless||"px"!==I&&"em"!==I?R.pfValue=t:R.pfValue="px"!==I&&I?this.getEmSizeInPixels()*t:t,"ms"!==I&&"s"!==I||(R.pfValue="ms"===I?t:1e3*t),"deg"!==I&&"rad"!==I||(R.pfValue="rad"===I?t:lt(t)),"%"===I&&(R.pfValue=t/100),R}if(c.propList){var F=[],V=""+t;if("none"===V);else{for(var q=V.split(/\s*,\s*|\s+/),j=0;j0&&l>0&&!isNaN(n.w)&&!isNaN(n.h)&&n.w>0&&n.h>0)return{zoom:o=(o=(o=Math.min((s-2*t)/n.w,(l-2*t)/n.h))>this._private.maxZoom?this._private.maxZoom:o)=n.minZoom&&(n.maxZoom=t),this},minZoom:function(e){return void 0===e?this._private.minZoom:this.zoomRange({min:e})},maxZoom:function(e){return void 0===e?this._private.maxZoom:this.zoomRange({max:e})},getZoomedViewport:function(e){var t,n,r=this._private,i=r.pan,a=r.zoom,o=!1;if(r.zoomingEnabled||(o=!0),v(e)?n=e:g(e)&&(n=e.level,null!=e.position?t=tt(e.position,a,i):null!=e.renderedPosition&&(t=e.renderedPosition),null==t||r.panningEnabled||(o=!0)),n=(n=n>r.maxZoom?r.maxZoom:n)t.maxZoom||!t.zoomingEnabled?a=!0:(t.zoom=s,i.push("zoom"))}if(r&&(!a||!e.cancelOnFailedZoom)&&t.panningEnabled){var l=e.pan;v(l.x)&&(t.pan.x=l.x,o=!1),v(l.y)&&(t.pan.y=l.y,o=!1),o||i.push("pan")}return i.length>0&&(i.push("viewport"),this.emit(i.join(" ")),this.notify("viewport")),this},center:function(e){var t=this.getCenterPan(e);return t&&(this._private.pan=t,this.emit("pan viewport"),this.notify("viewport")),this},getCenterPan:function(e,t){if(this._private.panningEnabled){if(d(e)){var n=e;e=this.mutableElements().filter(n)}else m(e)||(e=this.mutableElements());if(0!==e.length){var r=e.boundingBox(),i=this.width(),a=this.height();return{x:(i-(t=void 0===t?this._private.zoom:t)*(r.x1+r.x2))/2,y:(a-t*(r.y1+r.y2))/2}}}},reset:function(){return this._private.panningEnabled&&this._private.zoomingEnabled?(this.viewport({pan:{x:0,y:0},zoom:1}),this):this},invalidateSize:function(){this._private.sizeCache=null},size:function(){var e,t,n=this._private,r=n.container;return n.sizeCache=n.sizeCache||(r?(e=a.getComputedStyle(r),t=function(t){return parseFloat(e.getPropertyValue(t))},{width:r.clientWidth-t("padding-left")-t("padding-right"),height:r.clientHeight-t("padding-top")-t("padding-bottom")}):{width:1,height:1})},width:function(){return this.size().width},height:function(){return this.size().height},extent:function(){var e=this._private.pan,t=this._private.zoom,n=this.renderedExtent(),r={x1:(n.x1-e.x)/t,x2:(n.x2-e.x)/t,y1:(n.y1-e.y)/t,y2:(n.y2-e.y)/t};return r.w=r.x2-r.x1,r.h=r.y2-r.y1,r},renderedExtent:function(){var e=this.width(),t=this.height();return{x1:0,y1:0,x2:e,y2:t,w:e,h:t}}};ao.centre=ao.center,ao.autolockNodes=ao.autolock,ao.autoungrabifyNodes=ao.autoungrabify;var oo={data:cr.data({field:"data",bindingEvent:"data",allowBinding:!0,allowSetting:!0,settingEvent:"data",settingTriggersEvent:!0,triggerFnName:"trigger",allowGetting:!0}),removeData:cr.removeData({field:"data",event:"data",triggerFnName:"trigger",triggerEvent:!0}),scratch:cr.data({field:"scratch",bindingEvent:"scratch",allowBinding:!0,allowSetting:!0,settingEvent:"scratch",settingTriggersEvent:!0,triggerFnName:"trigger",allowGetting:!0}),removeScratch:cr.removeData({field:"scratch",event:"scratch",triggerFnName:"trigger",triggerEvent:!0})};oo.attr=oo.data,oo.removeAttr=oo.removeData;var so=function(e){var t=this,n=(e=I({},e)).container;n&&!y(n)&&y(n[0])&&(n=n[0]);var r=n?n._cyreg:null;(r=r||{})&&r.cy&&(r.cy.destroy(),r={});var i=r.readies=r.readies||[];n&&(n._cyreg=r),r.cy=t;var o=void 0!==a&&void 0!==n&&!e.headless,s=e;s.layout=I({name:o?"grid":"null"},s.layout),s.renderer=I({name:o?"canvas":"null"},s.renderer);var l=function(e,t,n){return void 0!==t?t:void 0!==n?n:e},u=this._private={container:n,ready:!1,options:s,elements:new Ca(this),listeners:[],aniEles:new Ca(this),data:{},scratch:{},layout:null,renderer:null,destroyed:!1,notificationsEnabled:!0,minZoom:1e-50,maxZoom:1e50,zoomingEnabled:l(!0,s.zoomingEnabled),userZoomingEnabled:l(!0,s.userZoomingEnabled),panningEnabled:l(!0,s.panningEnabled),userPanningEnabled:l(!0,s.userPanningEnabled),boxSelectionEnabled:l(!0,s.boxSelectionEnabled),autolock:l(!1,s.autolock,s.autolockNodes),autoungrabify:l(!1,s.autoungrabify,s.autoungrabifyNodes),autounselectify:l(!1,s.autounselectify),styleEnabled:void 0===s.styleEnabled?o:s.styleEnabled,zoom:v(s.zoom)?s.zoom:1,pan:{x:g(s.pan)&&v(s.pan.x)?s.pan.x:0,y:g(s.pan)&&v(s.pan.y)?s.pan.y:0},animation:{current:[],queue:[]},hasCompoundNodes:!1};this.createEmitter(),this.selectionType(s.selectionType),this.zoomRange({min:s.minZoom,max:s.maxZoom});u.styleEnabled&&t.setStyle([]);var c=I({},s,s.renderer);t.initRenderer(c);!function(e,t){if(e.some(C))return sr.all(e).then(t);t(e)}([s.style,s.elements],function(e){var n=e[0],a=e[1];u.styleEnabled&&t.style().append(n),function(e,n,r){t.notifications(!1);var i=t.mutableElements();i.length>0&&i.remove(),null!=e&&(g(e)||f(e))&&t.add(e),t.one("layoutready",function(e){t.notifications(!0),t.emit(e),t.one("load",n),t.emitAndNotify("load")}).one("layoutstop",function(){t.one("done",r),t.emit("done")});var a=I({},t._private.options.layout);a.eles=t.elements(),t.layout(a).run()}(a,function(){t.startAnimationLoop(),u.ready=!0,p(s.ready)&&t.on("ready",s.ready);for(var e=0;e0,u=bt(n.boundingBox?n.boundingBox:{x1:0,y1:0,w:r.width(),h:r.height()});if(m(n.roots))e=n.roots;else if(f(n.roots)){for(var c=[],h=0;h0;){var I=M.shift(),z=T(I,B);if(z)I.outgoers().filter(function(e){return e.isNode()&&i.has(e)}).forEach(_);else if(null===z){Ce("Detected double maximal shift for node `"+I.id()+"`. Bailing maximal adjustment due to cycle. Use `options.maximal: true` only on DAGs.");break}}}P();var L=0;if(n.avoidOverlap)for(var A=0;A0&&x[0].length<=3?l/2:0),h=2*Math.PI/x[r].length*i;return 0===r&&1===x[0].length&&(c=1),{x:G+c*Math.cos(h),y:Z+c*Math.sin(h)}}return{x:G+(i+1-(a+1)/2)*o,y:(r+1)*s}}),this};var fo={fit:!0,padding:30,boundingBox:void 0,avoidOverlap:!0,nodeDimensionsIncludeLabels:!1,spacingFactor:void 0,radius:void 0,startAngle:1.5*Math.PI,sweep:void 0,clockwise:!0,sort:void 0,animate:!1,animationDuration:500,animationEasing:void 0,animateFilter:function(e,t){return!0},ready:void 0,stop:void 0,transform:function(e,t){return t}};function go(e){this.options=I({},fo,e)}go.prototype.run=function(){var e=this.options,t=e,n=e.cy,r=t.eles,i=void 0!==t.counterclockwise?!t.counterclockwise:t.clockwise,a=r.nodes().not(":parent");t.sort&&(a=a.sort(t.sort));for(var o,s=bt(t.boundingBox?t.boundingBox:{x1:0,y1:0,w:n.width(),h:n.height()}),l=s.x1+s.w/2,u=s.y1+s.h/2,c=(void 0===t.sweep?2*Math.PI-2*Math.PI/a.length:t.sweep)/Math.max(1,a.length-1),h=0,d=0;d1&&t.avoidOverlap){h*=1.75;var y=Math.cos(c)-Math.cos(0),m=Math.sin(c)-Math.sin(0),b=Math.sqrt(h*h/(y*y+m*m));o=Math.max(b,o)}return a.layoutPositions(this,t,function(e,n){var r=t.startAngle+n*c*(i?1:-1),a=o*Math.cos(r),s=o*Math.sin(r);return{x:l+a,y:u+s}}),this};var vo,yo={fit:!0,padding:30,startAngle:1.5*Math.PI,sweep:void 0,clockwise:!0,equidistant:!1,minNodeSpacing:10,boundingBox:void 0,avoidOverlap:!0,nodeDimensionsIncludeLabels:!1,height:void 0,width:void 0,spacingFactor:void 0,concentric:function(e){return e.degree()},levelWidth:function(e){return e.maxDegree()/4},animate:!1,animationDuration:500,animationEasing:void 0,animateFilter:function(e,t){return!0},ready:void 0,stop:void 0,transform:function(e,t){return t}};function mo(e){this.options=I({},yo,e)}mo.prototype.run=function(){for(var e=this.options,t=e,n=void 0!==t.counterclockwise?!t.counterclockwise:t.clockwise,r=e.cy,i=t.eles.nodes().not(":parent"),a=bt(t.boundingBox?t.boundingBox:{x1:0,y1:0,w:r.width(),h:r.height()}),o=a.x1+a.w/2,s=a.y1+a.h/2,l=[],u=0,c=0;c0)Math.abs(y[0].value-b.value)>=g&&(y=[],v.push(y));y.push(b)}var x=u+t.minNodeSpacing;if(!t.avoidOverlap){var w=v.length>0&&v[0].length>1,E=(Math.min(a.w,a.h)/2-x)/(v.length+w?1:0);x=Math.min(x,E)}for(var k=0,C=0;C1&&t.avoidOverlap){var T=Math.cos(P)-Math.cos(0),M=Math.sin(P)-Math.sin(0),B=Math.sqrt(x*x/(T*T+M*M));k=Math.max(B,k)}S.r=k,k+=x}if(t.equidistant){for(var _=0,N=0,I=0;I=e.numIter)&&(Po(r,e,t),r.temperature=r.temperature*e.coolingFactor,!(r.temperature=e.animationThreshold&&a(),oe(t)):(Fo(r,e),s())}()}else{for(;u;)u=o(l),l++;Fo(r,e),s()}return this},xo.prototype.stop=function(){return this.stopped=!0,this.thread&&this.thread.stop(),this.emit("layoutstop"),this},xo.prototype.destroy=function(){return this.thread&&this.thread.stop(),this};var wo=function(e,t,n){for(var r=n.eles.edges(),i=n.eles.nodes(),a={isCompound:e.hasCompoundNodes(),layoutNodes:[],idToIndex:{},nodeSize:i.size(),graphSet:[],indexToGraph:[],layoutEdges:[],edgeSize:r.size(),temperature:n.initialTemp,clientWidth:e.width(),clientHeight:e.width(),boundingBox:bt(n.boundingBox?n.boundingBox:{x1:0,y1:0,w:e.width(),h:e.height()})},o=n.eles.components(),s={},l=0;l0){a.graphSet.push(w);for(l=0;lr.count?0:r.graph},ko=function e(t,n,r,i){var a=i.graphSet[r];if(-10)var s=(u=r.nodeOverlap*o)*i/(g=Math.sqrt(i*i+a*a)),l=u*a/g;else{var u,c=No(e,i,a),h=No(t,-1*i,-1*a),d=h.x-c.x,p=h.y-c.y,f=d*d+p*p,g=Math.sqrt(f);s=(u=(e.nodeRepulsion+t.nodeRepulsion)/f)*d/g,l=u*p/g}e.isLocked||(e.offsetX-=s,e.offsetY-=l),t.isLocked||(t.offsetX+=s,t.offsetY+=l)}},_o=function(e,t,n,r){if(n>0)var i=e.maxX-t.minX;else i=t.maxX-e.minX;if(r>0)var a=e.maxY-t.minY;else a=t.maxY-e.minY;return i>=0&&a>=0?Math.sqrt(i*i+a*a):0},No=function(e,t,n){var r=e.positionX,i=e.positionY,a=e.height||1,o=e.width||1,s=n/t,l=a/o,u={};return 0===t&&0n?(u.x=r,u.y=i+a/2,u):0t&&-1*l<=s&&s<=l?(u.x=r-o/2,u.y=i-o*n/2/t,u):0=l)?(u.x=r+a*t/2/n,u.y=i+a/2,u):0>n&&(s<=-1*l||s>=l)?(u.x=r-a*t/2/n,u.y=i-a/2,u):u},Io=function(e,t){for(var n=0;n1){var f=t.gravity*h/p,g=t.gravity*d/p;c.offsetX+=f,c.offsetY+=g}}}}},Lo=function(e,t){var n=[],r=0,i=-1;for(n.push.apply(n,e.graphSet[0]),i+=e.graphSet[0].length;r<=i;){var a=n[r++],o=e.idToIndex[a],s=e.layoutNodes[o],l=s.children;if(0n)var i={x:n*e/r,y:n*t/r};else i={x:e,y:t};return i},Ro=function e(t,n){var r=t.parentId;if(null!=r){var i=n.layoutNodes[n.idToIndex[r]],a=!1;return(null==i.maxX||t.maxX+i.padRight>i.maxX)&&(i.maxX=t.maxX+i.padRight,a=!0),(null==i.minX||t.minX-i.padLefti.maxY)&&(i.maxY=t.maxY+i.padBottom,a=!0),(null==i.minY||t.minY-i.padTopf&&(h+=p+t.componentSpacing,c=0,d=0,p=0)}}},Vo={fit:!0,padding:30,boundingBox:void 0,avoidOverlap:!0,avoidOverlapPadding:10,nodeDimensionsIncludeLabels:!1,spacingFactor:void 0,condense:!1,rows:void 0,cols:void 0,position:function(e){},sort:void 0,animate:!1,animationDuration:500,animationEasing:void 0,animateFilter:function(e,t){return!0},ready:void 0,stop:void 0,transform:function(e,t){return t}};function qo(e){this.options=I({},Vo,e)}qo.prototype.run=function(){var e=this.options,t=e,n=e.cy,r=t.eles.nodes().not(":parent");t.sort&&(r=r.sort(t.sort));var i=bt(t.boundingBox?t.boundingBox:{x1:0,y1:0,w:n.width(),h:n.height()});if(0===i.h||0===i.w)r.layoutPositions(this,t,function(e){return{x:i.x1,y:i.y1}});else{var a=r.size(),o=Math.sqrt(a*i.h/i.w),s=Math.round(o),l=Math.round(i.w/i.h*o),u=function(e){if(null==e)return Math.min(s,l);Math.min(s,l)==s?s=e:l=e},c=function(e){if(null==e)return Math.max(s,l);Math.max(s,l)==s?s=e:l=e},h=t.rows,d=null!=t.cols?t.cols:t.columns;if(null!=h&&null!=d)s=h,l=d;else if(null!=h&&null==d)s=h,l=Math.ceil(a/s);else if(null==h&&null!=d)l=d,s=Math.ceil(a/l);else if(l*s>a){var p=u(),f=c();(p-1)*f>=a?u(p-1):(f-1)*p>=a&&c(f-1)}else for(;l*s=a?c(v+1):u(g+1)}var y=i.w/l,m=i.h/s;if(t.condense&&(y=0,m=0),t.avoidOverlap)for(var b=0;b=l&&(B=0,M++)},N={},I=0;I(r=Ot(e,t,x[w],x[w+1],x[w+2],x[w+3])))return v(n,r),!0}else if("bezier"===a.edgeType||"multibezier"===a.edgeType||"self"===a.edgeType||"compound"===a.edgeType)for(x=a.allpts,w=0;w+5(r=At(e,t,x[w],x[w+1],x[w+2],x[w+3],x[w+4],x[w+5])))return v(n,r),!0;m=m||i.source,b=b||i.target;var E=o.getArrowWidth(l,c),k=[{name:"source",x:a.arrowStartX,y:a.arrowStartY,angle:a.srcArrowAngle},{name:"target",x:a.arrowEndX,y:a.arrowEndY,angle:a.tgtArrowAngle},{name:"mid-source",x:a.midX,y:a.midY,angle:a.midsrcArrowAngle},{name:"mid-target",x:a.midX,y:a.midY,angle:a.midtgtArrowAngle}];for(w=0;w0&&(y(m),y(b))}function b(e,t,n){return Ne(e,t,n)}function x(n,r){var i,a=n._private,o=f;i=r?r+"-":"";var s=a.labelBounds[r||"main"],l=n.pstyle(i+"label").value;if("yes"===n.pstyle("text-events").strValue&&l){var u=a.rstyle,c=b(u,"labelX",r),h=b(u,"labelY",r),d=b(a.rscratch,"labelAngle",r),p=s.x1-o,g=s.x2+o,y=s.y1-o,m=s.y2+o;if(d){var x=Math.cos(d),w=Math.sin(d),E=function(e,t){return{x:(e-=c)*x-(t-=h)*w+c,y:e*w+t*x+h}},k=E(p,y),C=E(p,m),S=E(g,y),D=E(g,m),P=[k.x,k.y,S.x,S.y,D.x,D.y,C.x,C.y];if(Rt(e,t,P))return v(n),!0}else if(Tt(s,e,t))return v(n),!0}}n&&(l=l.interactive);for(var w=l.length-1;w>=0;w--){var E=l[w];E.isNode()?y(E)||x(E):m(E)||x(E)||x(E,"source")||x(E,"target")}return u},getAllInBox:function(e,t,n,r){for(var i=this.getCachedZSortedEles().interactive,a=[],o=Math.min(e,n),s=Math.max(e,n),l=Math.min(t,r),u=Math.max(t,r),c=bt({x1:e=o,y1:t=l,x2:n=s,y2:r=u}),h=0;h0?Math.max(e-t,0):Math.min(e+t,0)},x=b(y,g),w=b(m,v),E=!1;"auto"===u?u=Math.abs(x)>Math.abs(w)?"horizontal":"vertical":"upward"===u||"downward"===u?(u="vertical",E=!0):"leftward"!==u&&"rightward"!==u||(u="horizontal",E=!0);var k="vertical"===u,C=k?w:x,S=k?m:y,D=ht(S),P=!1;E&&f||!("downward"===c&&S<0||"upward"===c&&S>0||"leftward"===c&&S>0||"rightward"===c&&S<0)||(C=(D*=-1)*Math.abs(C),P=!0);var T=f?d*C:d*D,M=function(e){return Math.abs(e)=Math.abs(C)},B=M(T),_=M(C-T);if((B||_)&&!P)if(k){var N=Math.abs(S)<=a/2,I=Math.abs(y)<=o/2;if(N){var z=(r.x1+r.x2)/2,L=r.y1,A=r.y2;n.segpts=[z,L,z,A]}else if(I){var O=(r.y1+r.y2)/2,R=r.x1,F=r.x2;n.segpts=[R,O,F,O]}else n.segpts=[r.x1,r.y2]}else{var V=Math.abs(S)<=i/2,q=Math.abs(m)<=s/2;if(V){var j=(r.y1+r.y2)/2,Y=r.x1,X=r.x2;n.segpts=[Y,j,X,j]}else if(q){var W=(r.x1+r.x2)/2,H=r.y1,K=r.y2;n.segpts=[W,H,W,K]}else n.segpts=[r.x2,r.y1]}else if(k){var G=r.y1+T+(l?a/2*D:0),Z=r.x1,U=r.x2;n.segpts=[Z,G,U,G]}else{var $=r.x1+T+(l?i/2*D:0),Q=r.y1,J=r.y2;n.segpts=[$,Q,$,J]}},es.tryToCorrectInvalidPoints=function(e,t){var n=e._private.rscratch;if("bezier"===n.edgeType){var r=t.srcPos,i=t.tgtPos,a=t.srcW,o=t.srcH,s=t.tgtW,l=t.tgtH,u=t.srcShape,c=t.tgtShape,h=!v(n.startX)||!v(n.startY),d=!v(n.arrowStartX)||!v(n.arrowStartY),p=!v(n.endX)||!v(n.endY),f=!v(n.arrowEndX)||!v(n.arrowEndY),g=3*(this.getArrowWidth(e.pstyle("width").pfValue,e.pstyle("arrow-scale").value)*this.arrowShapeWidth),y=dt({x:n.ctrlpts[0],y:n.ctrlpts[1]},{x:n.startX,y:n.startY}),m=yd.poolIndex()){var p=h;h=d,d=p}var f=s.srcPos=h.position(),g=s.tgtPos=d.position(),y=s.srcW=h.outerWidth(),m=s.srcH=h.outerHeight(),b=s.tgtW=d.outerWidth(),x=s.tgtH=d.outerHeight(),w=s.srcShape=n.nodeShapes[t.getNodeShape(h)],E=s.tgtShape=n.nodeShapes[t.getNodeShape(d)];s.dirCounts={north:0,west:0,south:0,east:0,northwest:0,southwest:0,northeast:0,southeast:0};for(var k=0;k=c||b){h={cp:v,segment:m};break}}if(h)break}var x=h.cp,w=h.segment,E=(c-p)/w.length,k=w.t1-w.t0,C=u?w.t0+k*E:w.t1-k*E;C=mt(0,C,1),t=vt(x.p0,x.p1,x.p2,C),l=function(e,t,n,r){var i=mt(0,r-.001,1),a=mt(0,r+.001,1),o=vt(e,t,n,i),s=vt(e,t,n,a);return ss(o,s)}(x.p0,x.p1,x.p2,C);break;case"straight":case"segments":case"haystack":for(var S,D,P,T,M=0,B=r.allpts.length,_=0;_+3=c));_+=2);var N=(c-D)/S;N=mt(0,N,1),t=yt(P,T,N),l=ss(P,T)}o("labelX",s,t.x),o("labelY",s,t.y),o("labelAutoAngle",s,l)}};l("source"),l("target"),this.applyLabelDimensions(e)}},as.applyLabelDimensions=function(e){this.applyPrefixedLabelDimensions(e),e.isEdge()&&(this.applyPrefixedLabelDimensions(e,"source"),this.applyPrefixedLabelDimensions(e,"target"))},as.applyPrefixedLabelDimensions=function(e,t){var n=e._private,r=this.getLabelText(e,t),i=this.calculateLabelDimensions(e,r),a=e.pstyle("line-height").pfValue,o=e.pstyle("text-wrap").strValue,s=Ne(n.rscratch,"labelWrapCachedLines",t)||[],l="wrap"!==o?1:Math.max(s.length,1),u=i.height/l,c=u*a,h=i.width,d=i.height+(l-1)*(a-1)*u;Ie(n.rstyle,"labelWidth",t,h),Ie(n.rscratch,"labelWidth",t,h),Ie(n.rstyle,"labelHeight",t,d),Ie(n.rscratch,"labelHeight",t,d),Ie(n.rscratch,"labelLineHeight",t,c)},as.getLabelText=function(e,t){var n=e._private,r=t?t+"-":"",i=e.pstyle(r+"label").strValue,a=e.pstyle("text-transform").value,o=function(e,r){return r?(Ie(n.rscratch,e,t,r),r):Ne(n.rscratch,e,t)};if(!i)return"";"none"==a||("uppercase"==a?i=i.toUpperCase():"lowercase"==a&&(i=i.toLowerCase()));var s=e.pstyle("text-wrap").value;if("wrap"===s){var l=o("labelKey");if(null!=l&&o("labelWrapKey")===l)return o("labelWrapCachedText");for(var u=i.split("\n"),c=e.pstyle("text-max-width").pfValue,h="anywhere"===e.pstyle("text-overflow-wrap").value,d=[],p=/[\s\u200b]+/,f=h?"":" ",g=0;gc){for(var b=v.split(p),x="",w=0;wC)break;S+=i[P],P===i.length-1&&(D=!0)}return D||(S+="…"),S}return i},as.getLabelJustification=function(e){var t=e.pstyle("text-justification").strValue,n=e.pstyle("text-halign").strValue;if("auto"!==t)return t;if(!e.isNode())return"center";switch(n){case"left":return"right";case"right":return"left";default:return"center"}},as.calculateLabelDimensions=function(e,t){var n=he(t,e._private.labelDimsKey),r=this.labelDimCache||(this.labelDimCache=[]),i=r[n];if(null!=i)return i;var a=e.pstyle("font-style").strValue,o=1*e.pstyle("font-size").pfValue+"px",s=e.pstyle("font-family").strValue,l=e.pstyle("font-weight").strValue,u=this.labelCalcDiv;u||(u=this.labelCalcDiv=document.createElement("div"),document.body.appendChild(u));var c=u.style;return c.fontFamily=s,c.fontStyle=a,c.fontSize=o,c.fontWeight=l,c.position="absolute",c.left="-9999px",c.top="-9999px",c.zIndex="-1",c.visibility="hidden",c.pointerEvents="none",c.padding="0",c.lineHeight="1","wrap"===e.pstyle("text-wrap").value?c.whiteSpace="pre":c.whiteSpace="normal",u.textContent=t,r[n]={width:Math.ceil(u.clientWidth/1),height:Math.ceil(u.clientHeight/1)}},as.calculateLabelAngle=function(e,t){var n=e._private.rscratch,r=e.isEdge(),i=t?t+"-":"",a=e.pstyle(i+"text-rotation"),o=a.strValue;return"none"===o?0:r&&"autorotate"===o?n.labelAutoAngle:"autorotate"===o?0:a.pfValue},as.calculateLabelAngles=function(e){var t=this,n=e.isEdge(),r=e._private.rscratch;r.labelAngle=t.calculateLabelAngle(e),n&&(r.sourceLabelAngle=t.calculateLabelAngle(e,"source"),r.targetLabelAngle=t.calculateLabelAngle(e,"target"))};var ls={},us=!1;ls.getNodeShape=function(e){var t=e.pstyle("shape").value;if("cutrectangle"===t&&(e.width()<28||e.height()<28))return us||(Ce("The `cutrectangle` node shape can not be used at small sizes so `rectangle` is used instead"),us=!0),"rectangle";if(e.isParent())return"rectangle"===t||"roundrectangle"===t||"cutrectangle"===t||"barrel"===t?t:"rectangle";if("polygon"===t){var n=e.pstyle("shape-polygon-points").value;return this.nodeShapes.makePolygon(n).name}return t};var cs={registerCalculationListeners:function(){var e=this.cy,t=e.collection(),n=this,r=function(e){var n=!(arguments.length>1&&void 0!==arguments[1])||arguments[1];if(t.merge(e),n)for(var r=0;r=e.desktopTapThreshold2}var P=r(t);m&&(e.hoverData.tapholdCancelled=!0);a=!0,n(g,["mousemove","vmousemove","tapdrag"],t,{x:h[0],y:h[1]});var T=function(){e.data.bgActivePosistion=void 0,e.hoverData.selecting||o.emit({originalEvent:t,type:"boxstart",position:{x:h[0],y:h[1]}}),f[4]=1,e.hoverData.selecting=!0,e.redrawHint("select",!0),e.redraw()};if(3===e.hoverData.which){if(m){var M={originalEvent:t,type:"cxtdrag",position:{x:h[0],y:h[1]}};x?x.emit(M):o.emit(M),e.hoverData.cxtDragged=!0,e.hoverData.cxtOver&&g===e.hoverData.cxtOver||(e.hoverData.cxtOver&&e.hoverData.cxtOver.emit({originalEvent:t,type:"cxtdragout",position:{x:h[0],y:h[1]}}),e.hoverData.cxtOver=g,g&&g.emit({originalEvent:t,type:"cxtdragover",position:{x:h[0],y:h[1]}}))}}else if(e.hoverData.dragging){if(a=!0,o.panningEnabled()&&o.userPanningEnabled()){var B;if(e.hoverData.justStartedPan){var _=e.hoverData.mdownPos;B={x:(h[0]-_[0])*s,y:(h[1]-_[1])*s},e.hoverData.justStartedPan=!1}else B={x:w[0]*s,y:w[1]*s};o.panBy(B),e.hoverData.dragged=!0}h=e.projectIntoViewport(t.clientX,t.clientY)}else if(1!=f[4]||null!=x&&!x.pannable()){if(x&&x.pannable()&&x.active()&&x.unactivate(),x&&x.grabbed()||g==b||(b&&n(b,["mouseout","tapdragout"],t,{x:h[0],y:h[1]}),g&&n(g,["mouseover","tapdragover"],t,{x:h[0],y:h[1]}),e.hoverData.last=g),x)if(m){if(o.boxSelectionEnabled()&&P)x&&x.grabbed()&&(c(E),x.emit("freeon"),E.emit("free"),e.dragData.didDrag&&(x.emit("dragfreeon"),E.emit("dragfree"))),T();else if(x&&x.grabbed()&&e.nodeIsDraggable(x)){var N=!e.dragData.didDrag;N&&e.redrawHint("eles",!0),e.dragData.didDrag=!0;var I=o.collection();e.hoverData.draggingEles||l(E,{inDragLayer:!0});var z={x:0,y:0};if(v(w[0])&&v(w[1])&&(z.x+=w[0],z.y+=w[1],N)){var L=e.hoverData.dragDelta;L&&v(L[0])&&v(L[1])&&(z.x+=L[0],z.y+=L[1])}for(var A=0;A0&&e.redrawHint("eles",!0),e.dragData.possibleDragElements=u=a.collection()),l!=h||e.dragData.didDrag||e.hoverData.selecting||null!=l&&l._private.selectable&&(e.hoverData.dragging||("additive"===a.selectionType()||d?l.selected()?l.unselect(["tapunselect"]):l.select(["tapselect"]):d||(a.$(t).unmerge(l).unselect(["tapunselect"]),l.select(["tapselect"]))),e.redrawHint("eles",!0)),e.hoverData.selecting){var g=a.collection(e.getAllInBox(s[0],s[1],s[2],s[3]));e.redrawHint("select",!0),g.length>0&&e.redrawHint("eles",!0),a.emit({type:"boxend",originalEvent:i,position:{x:o[0],y:o[1]}});var v=function(e){return e.selectable()&&!e.selected()};"additive"===a.selectionType()?g.emit("box").stdFilter(v).select().emit("boxselect"):(d||a.$(t).unmerge(g).unselect(),g.emit("box").stdFilter(v).select().emit("boxselect")),e.redraw()}if(e.hoverData.dragging&&(e.hoverData.dragging=!1,e.redrawHint("select",!0),e.redrawHint("eles",!0),e.redraw()),!s[4]){e.redrawHint("drag",!0),e.redrawHint("eles",!0);var y=h&&h.grabbed();c(u),y&&(h.emit("freeon"),u.emit("free"),e.dragData.didDrag&&(h.emit("dragfreeon"),u.emit("dragfree")))}}s[4]=0,e.hoverData.down=null,e.hoverData.cxtStarted=!1,e.hoverData.draggingEles=!1,e.hoverData.selecting=!1,e.hoverData.isOverThresholdDrag=!1,e.dragData.didDrag=!1,e.hoverData.dragged=!1,e.hoverData.dragDelta=[],e.hoverData.mdownPos=null,e.hoverData.mdownGPos=null}},!1);var m,b,x,w,E,k,C,S,D,P,T,M,B;e.registerBinding(e.container,"wheel",function(t){if(!e.scrollingPage){var n,r=e.cy,i=e.projectIntoViewport(t.clientX,t.clientY),a=[i[0]*r.zoom()+r.pan().x,i[1]*r.zoom()+r.pan().y];e.hoverData.draggingEles||e.hoverData.dragging||e.hoverData.cxtStarted||0!==e.selection[4]?t.preventDefault():r.panningEnabled()&&r.userPanningEnabled()&&r.zoomingEnabled()&&r.userZoomingEnabled()&&(t.preventDefault(),e.data.wheelZooming=!0,clearTimeout(e.data.wheelTimeout),e.data.wheelTimeout=setTimeout(function(){e.data.wheelZooming=!1,e.redrawHint("eles",!0),e.redraw()},150),n=null!=t.deltaY?t.deltaY/-250:null!=t.wheelDeltaY?t.wheelDeltaY/1e3:t.wheelDelta/1e3,n*=e.wheelSensitivity,1===t.deltaMode&&(n*=33),r.zoom({level:r.zoom()*Math.pow(10,n),renderedPosition:{x:a[0],y:a[1]}}))}},!0),e.registerBinding(window,"scroll",function(t){e.scrollingPage=!0,clearTimeout(e.scrollingPageTimeout),e.scrollingPageTimeout=setTimeout(function(){e.scrollingPage=!1},250)},!0),e.registerBinding(e.container,"mouseout",function(t){var n=e.projectIntoViewport(t.clientX,t.clientY);e.cy.emit({originalEvent:t,type:"mouseout",position:{x:n[0],y:n[1]}})},!1),e.registerBinding(e.container,"mouseover",function(t){var n=e.projectIntoViewport(t.clientX,t.clientY);e.cy.emit({originalEvent:t,type:"mouseover",position:{x:n[0],y:n[1]}})},!1);var _,N,I,z,L=function(e,t,n,r){return Math.sqrt((n-e)*(n-e)+(r-t)*(r-t))},A=function(e,t,n,r){return(n-e)*(n-e)+(r-t)*(r-t)};if(e.registerBinding(e.container,"touchstart",_=function(t){if(y(t)){d(),e.touchData.capture=!0,e.data.bgActivePosistion=void 0;var r=e.cy,i=e.touchData.now,a=e.touchData.earlier;if(t.touches[0]){var s=e.projectIntoViewport(t.touches[0].clientX,t.touches[0].clientY);i[0]=s[0],i[1]=s[1]}if(t.touches[1]){s=e.projectIntoViewport(t.touches[1].clientX,t.touches[1].clientY);i[2]=s[0],i[3]=s[1]}if(t.touches[2]){s=e.projectIntoViewport(t.touches[2].clientX,t.touches[2].clientY);i[4]=s[0],i[5]=s[1]}if(t.touches[1]){c(e.dragData.touchDragEles);var h=e.findContainerClientCoords();D=h[0],P=h[1],T=h[2],M=h[3],m=t.touches[0].clientX-D,b=t.touches[0].clientY-P,x=t.touches[1].clientX-D,w=t.touches[1].clientY-P,B=0<=m&&m<=T&&0<=x&&x<=T&&0<=b&&b<=M&&0<=w&&w<=M;var p=r.pan(),f=r.zoom();E=L(m,b,x,w),k=A(m,b,x,w),S=[((C=[(m+x)/2,(b+w)/2])[0]-p.x)/f,(C[1]-p.y)/f];if(k<4e4&&!t.touches[2]){var g=e.findNearestElement(i[0],i[1],!0,!0),v=e.findNearestElement(i[2],i[3],!0,!0);return g&&g.isNode()?(g.activate().emit({originalEvent:t,type:"cxttapstart",position:{x:i[0],y:i[1]}}),e.touchData.start=g):v&&v.isNode()?(v.activate().emit({originalEvent:t,type:"cxttapstart",position:{x:i[0],y:i[1]}}),e.touchData.start=v):r.emit({originalEvent:t,type:"cxttapstart",position:{x:i[0],y:i[1]}}),e.touchData.start&&(e.touchData.start._private.grabbed=!1),e.touchData.cxt=!0,e.touchData.cxtDragged=!1,e.data.bgActivePosistion=void 0,void e.redraw()}}if(t.touches[2]);else if(t.touches[1]);else if(t.touches[0]){var _=e.findNearestElements(i[0],i[1],!0,!0),N=_[0];if(null!=N&&(N.activate(),e.touchData.start=N,e.touchData.starts=_,e.nodeIsGrabbable(N))){var I=e.dragData.touchDragEles=r.collection(),z=null;e.redrawHint("eles",!0),e.redrawHint("drag",!0),N.selected()?(z=r.$(function(t){return t.selected()&&e.nodeIsGrabbable(t)}),l(z,{addToList:I})):u(N,{addToList:I}),o(N);var O=function(e){return{originalEvent:t,type:e,position:{x:i[0],y:i[1]}}};N.emit(O("grabon")),z?z.forEach(function(e){e.emit(O("grab"))}):N.emit(O("grab"))}n(N,["touchstart","tapstart","vmousedown"],t,{x:i[0],y:i[1]}),null==N&&(e.data.bgActivePosistion={x:s[0],y:s[1]},e.redrawHint("select",!0),e.redraw()),e.touchData.singleTouchMoved=!1,e.touchData.singleTouchStartTime=+new Date,clearTimeout(e.touchData.tapholdTimeout),e.touchData.tapholdTimeout=setTimeout(function(){!1!==e.touchData.singleTouchMoved||e.pinching||e.touchData.selecting||n(e.touchData.start,["taphold"],t,{x:i[0],y:i[1]})},e.tapholdDuration)}if(t.touches.length>=1){for(var R=e.touchData.startPosition=[],F=0;F=e.touchTapThreshold2}if(r&&e.touchData.cxt){t.preventDefault();var N=t.touches[0].clientX-D,I=t.touches[0].clientY-P,z=t.touches[1].clientX-D,O=t.touches[1].clientY-P,R=A(N,I,z,O);if(R/k>=2.25||R>=22500){e.touchData.cxt=!1,e.data.bgActivePosistion=void 0,e.redrawHint("select",!0);var F={originalEvent:t,type:"cxttapend",position:{x:s[0],y:s[1]}};e.touchData.start?(e.touchData.start.unactivate().emit(F),e.touchData.start=null):o.emit(F)}}if(r&&e.touchData.cxt){F={originalEvent:t,type:"cxtdrag",position:{x:s[0],y:s[1]}};e.data.bgActivePosistion=void 0,e.redrawHint("select",!0),e.touchData.start?e.touchData.start.emit(F):o.emit(F),e.touchData.start&&(e.touchData.start._private.grabbed=!1),e.touchData.cxtDragged=!0;var V=e.findNearestElement(s[0],s[1],!0,!0);e.touchData.cxtOver&&V===e.touchData.cxtOver||(e.touchData.cxtOver&&e.touchData.cxtOver.emit({originalEvent:t,type:"cxtdragout",position:{x:s[0],y:s[1]}}),e.touchData.cxtOver=V,V&&V.emit({originalEvent:t,type:"cxtdragover",position:{x:s[0],y:s[1]}}))}else if(r&&t.touches[2]&&o.boxSelectionEnabled())t.preventDefault(),e.data.bgActivePosistion=void 0,this.lastThreeTouch=+new Date,e.touchData.selecting||o.emit({originalEvent:t,type:"boxstart",position:{x:s[0],y:s[1]}}),e.touchData.selecting=!0,e.redrawHint("select",!0),a&&0!==a.length&&void 0!==a[0]?(a[2]=(s[0]+s[2]+s[4])/3,a[3]=(s[1]+s[3]+s[5])/3):(a[0]=(s[0]+s[2]+s[4])/3,a[1]=(s[1]+s[3]+s[5])/3,a[2]=(s[0]+s[2]+s[4])/3+1,a[3]=(s[1]+s[3]+s[5])/3+1),a[4]=1,e.touchData.selecting=!0,e.redraw();else if(r&&t.touches[1]&&o.zoomingEnabled()&&o.panningEnabled()&&o.userZoomingEnabled()&&o.userPanningEnabled()){if(t.preventDefault(),e.data.bgActivePosistion=void 0,e.redrawHint("select",!0),ee=e.dragData.touchDragEles){e.redrawHint("drag",!0);for(var q=0;q0&&!e.hoverData.draggingEles&&!e.swipePanning&&null!=e.data.bgActivePosistion&&(e.data.bgActivePosistion=void 0,e.redrawHint("select",!0),e.redraw())}},!1),e.registerBinding(window,"touchcancel",I=function(t){var n=e.touchData.start;e.touchData.capture=!1,n&&n.unactivate()}),e.registerBinding(window,"touchend",z=function(r){var i=e.touchData.start;if(e.touchData.capture){0===r.touches.length&&(e.touchData.capture=!1),r.preventDefault();var a=e.selection;e.swipePanning=!1,e.hoverData.draggingEles=!1;var o,s=e.cy,l=s.zoom(),u=e.touchData.now,h=e.touchData.earlier;if(r.touches[0]){var d=e.projectIntoViewport(r.touches[0].clientX,r.touches[0].clientY);u[0]=d[0],u[1]=d[1]}if(r.touches[1]){d=e.projectIntoViewport(r.touches[1].clientX,r.touches[1].clientY);u[2]=d[0],u[3]=d[1]}if(r.touches[2]){d=e.projectIntoViewport(r.touches[2].clientX,r.touches[2].clientY);u[4]=d[0],u[5]=d[1]}if(i&&i.unactivate(),e.touchData.cxt){if(o={originalEvent:r,type:"cxttapend",position:{x:u[0],y:u[1]}},i?i.emit(o):s.emit(o),!e.touchData.cxtDragged){var p={originalEvent:r,type:"cxttap",position:{x:u[0],y:u[1]}};i?i.emit(p):s.emit(p)}return e.touchData.start&&(e.touchData.start._private.grabbed=!1),e.touchData.cxt=!1,e.touchData.start=null,void e.redraw()}if(!r.touches[2]&&s.boxSelectionEnabled()&&e.touchData.selecting){e.touchData.selecting=!1;var f=s.collection(e.getAllInBox(a[0],a[1],a[2],a[3]));a[0]=void 0,a[1]=void 0,a[2]=void 0,a[3]=void 0,a[4]=0,e.redrawHint("select",!0),s.emit({type:"boxend",originalEvent:r,position:{x:u[0],y:u[1]}});f.emit("box").stdFilter(function(e){return e.selectable()&&!e.selected()}).select().emit("boxselect"),f.nonempty()&&e.redrawHint("eles",!0),e.redraw()}if(null!=i&&i.unactivate(),r.touches[2])e.data.bgActivePosistion=void 0,e.redrawHint("select",!0);else if(r.touches[1]);else if(r.touches[0]);else if(!r.touches[0]){e.data.bgActivePosistion=void 0,e.redrawHint("select",!0);var g=e.dragData.touchDragEles;if(null!=i){var v=i._private.grabbed;c(g),e.redrawHint("drag",!0),e.redrawHint("eles",!0),v&&(i.emit("freeon"),g.emit("free"),e.dragData.didDrag&&(i.emit("dragfreeon"),g.emit("dragfree"))),n(i,["touchend","tapend","vmouseup","tapdragout"],r,{x:u[0],y:u[1]}),i.unactivate(),e.touchData.start=null}else{var y=e.findNearestElement(u[0],u[1],!0,!0);n(y,["touchend","tapend","vmouseup","tapdragout"],r,{x:u[0],y:u[1]})}var m=e.touchData.startPosition[0]-u[0],b=m*m,x=e.touchData.startPosition[1]-u[1],w=(b+x*x)*l*l;e.touchData.singleTouchMoved||(i||s.$(":selected").unselect(["tapunselect"]),n(i,["tap","vclick"],r,{x:u[0],y:u[1]})),null!=i&&!e.dragData.didDrag&&i._private.selectable&&w0)return p[0]}return null},d=Object.keys(c),p=0;p0?l:_t(i,a,e,t,n,r,o)},checkPoint:function(e,t,n,r,i,a,o){var s=Qt(r,i),l=2*s;if(Ft(e,t,this.points,a,o,r,i-l,[0,-1],n))return!0;if(Ft(e,t,this.points,a,o,r-l,i,[0,-1],n))return!0;var u=r/2+2*n,c=i/2+2*n;return!!Rt(e,t,[a-u,o-c,a-u,o,a+u,o,a+u,o-c])||(!!Yt(e,t,l,l,a+r/2-s,o+i/2-s,n)||!!Yt(e,t,l,l,a-r/2+s,o+i/2-s,n))}}},registerNodeShapes:function(){var e=this.nodeShapes={},t=this;this.generateEllipse(),this.generatePolygon("triangle",Zt(3,0)),this.generatePolygon("rectangle",Zt(4,0)),e.square=e.rectangle,this.generateRoundRectangle(),this.generateCutRectangle(),this.generateBarrel(),this.generateBottomRoundrectangle(),this.generatePolygon("diamond",[0,1,1,0,0,-1,-1,0]),this.generatePolygon("pentagon",Zt(5,0)),this.generatePolygon("hexagon",Zt(6,0)),this.generatePolygon("heptagon",Zt(7,0)),this.generatePolygon("octagon",Zt(8,0));var n=new Array(20),r=$t(5,0),i=$t(5,Math.PI/5),a=.5*(3-Math.sqrt(5));a*=1.57;for(var o=0;o=e.deqFastCost*g)break}else if(i){if(p>=e.deqCost*l||p>=e.deqAvgCost*s)break}else if(f>=e.deqNoDrawCost*(1e3/60))break;var v=e.deq(t,h,c);if(!(v.length>0))break;for(var y=0;y0&&(e.onDeqd(t,u),!i&&e.shouldRedraw(t,u,h,c)&&r())},i(t))}}},ws=function(){function e(n){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:be;t(this,e),this.idsByKey=new ze,this.keyForId=new ze,this.cachesByLvl=new ze,this.lvls=[],this.getKey=n,this.doesEleInvalidateKey=r}return r(e,[{key:"getIdsFor",value:function(e){null==e&&Ee("Can not get id list for null key");var t=this.idsByKey,n=this.idsByKey.get(e);return n||(n=new Ae,t.set(e,n)),n}},{key:"addIdForKey",value:function(e,t){null!=e&&this.getIdsFor(e).add(t)}},{key:"deleteIdForKey",value:function(e,t){null!=e&&this.getIdsFor(e).delete(t)}},{key:"getNumberOfIdsForKey",value:function(e){return null==e?0:this.getIdsFor(e).size}},{key:"updateKeyMappingFor",value:function(e){var t=e.id(),n=this.keyForId.get(t),r=this.getKey(e);this.deleteIdForKey(n,t),this.addIdForKey(r,t),this.keyForId.set(t,r)}},{key:"deleteKeyMappingFor",value:function(e){var t=e.id(),n=this.keyForId.get(t);this.deleteIdForKey(n,t),this.keyForId.delete(t)}},{key:"keyHasChangedFor",value:function(e){var t=e.id();return this.keyForId.get(t)!==this.getKey(e)}},{key:"isInvalid",value:function(e){return this.keyHasChangedFor(e)||this.doesEleInvalidateKey(e)}},{key:"getCachesAt",value:function(e){var t=this.cachesByLvl,n=this.lvls,r=t.get(e);return r||(r=new ze,t.set(e,r),n.push(e)),r}},{key:"getCache",value:function(e,t){return this.getCachesAt(t).get(e)}},{key:"get",value:function(e,t){var n=this.getKey(e),r=this.getCache(n,t);return null!=r&&this.updateKeyMappingFor(e),r}},{key:"getForCachedKey",value:function(e,t){var n=this.keyForId.get(e.id());return this.getCache(n,t)}},{key:"hasCache",value:function(e,t){return this.getCachesAt(t).has(e)}},{key:"has",value:function(e,t){var n=this.getKey(e);return this.hasCache(n,t)}},{key:"setCache",value:function(e,t,n){n.key=e,this.getCachesAt(t).set(e,n)}},{key:"set",value:function(e,t,n){var r=this.getKey(e);this.setCache(r,t,n),this.updateKeyMappingFor(e)}},{key:"deleteCache",value:function(e,t){this.getCachesAt(t).delete(e)}},{key:"delete",value:function(e,t){var n=this.getKey(e);this.deleteCache(n,t)}},{key:"invalidateKey",value:function(e){var t=this;this.lvls.forEach(function(n){return t.deleteCache(e,n)})}},{key:"invalidate",value:function(e){var t=e.id(),n=this.keyForId.get(t);this.deleteKeyMappingFor(e);var r=this.doesEleInvalidateKey(e);return r&&this.invalidateKey(n),r||0===this.getNumberOfIdsForKey(n)}}]),e}(),Es={dequeue:"dequeue",downscale:"downscale",highQuality:"highQuality"},ks=Me({getKey:null,doesEleInvalidateKey:be,drawElement:null,getBoundingBox:null,getRotationPoint:null,getRotationOffset:null,isVisible:me,allowEdgeTxrCaching:!0,allowParentTxrCaching:!0}),Cs=function(e,t){this.renderer=e,this.onDequeues=[];var n=ks(t);I(this,n),this.lookup=new ws(n.getKey,n.doesEleInvalidateKey),this.setupDequeueing()},Ss=Cs.prototype;Ss.reasons=Es,Ss.getTextureQueue=function(e){return this.eleImgCaches=this.eleImgCaches||{},this.eleImgCaches[e]=this.eleImgCaches[e]||[]},Ss.getRetiredTextureQueue=function(e){var t=this.eleImgCaches.retired=this.eleImgCaches.retired||{};return t[e]=t[e]||[]},Ss.getElementQueue=function(){return this.eleCacheQueue=this.eleCacheQueue||new Ve(function(e,t){return t.reqs-e.reqs})},Ss.getElementKeyToQueue=function(){return this.eleKeyToCacheQueue=this.eleKeyToCacheQueue||{}},Ss.getElement=function(e,t,n,r,i){var a=this,o=this.renderer,s=o.cy.zoom(),l=this.lookup;if(0===t.w||0===t.h||isNaN(t.w)||isNaN(t.h)||!e.visible())return null;if(!a.allowEdgeTxrCaching&&e.isEdge()||!a.allowParentTxrCaching&&e.isParent())return null;if(null==r&&(r=Math.ceil(ct(s*n))),r<-4)r=-4;else if(s>=7.99||r>3)return null;var u=Math.pow(2,r),c=t.h*u,h=t.w*u,d=o.eleTextBiggerThanMin(e,u);if(!this.isVisible(e,d))return null;var p,f=l.get(e,r);if(f&&f.invalidated&&(f.invalidated=!1,f.texture.invalidatedWidth-=f.width),f)return f;if(p=c<=25?25:c<=50?50:50*Math.ceil(c/50),c>1024||h>1024)return null;var g=a.getTextureQueue(p),v=g[g.length-2],y=function(){return a.recycleTexture(p,h)||a.addTexture(p,h)};v||(v=g[g.length-1]),v||(v=y()),v.width-v.usedWidthr;P--)S=a.getElement(e,t,n,P,Es.downscale);D()}else{var T;if(!x&&!w&&!E)for(var M=r-1;M>=-4;M--){var B=l.get(e,M);if(B){T=B;break}}if(b(T))return a.queueElement(e,r),T;v.context.translate(v.usedWidth,0),v.context.scale(u,u),this.drawElement(v.context,e,t,d,!1),v.context.scale(1/u,1/u),v.context.translate(-v.usedWidth,0)}return f={x:v.usedWidth,texture:v,level:r,scale:u,width:h,height:c,scaledLabelShown:d},v.usedWidth+=Math.ceil(h+8),v.eleCaches.push(f),l.set(e,r,f),a.checkTextureFullness(v),f},Ss.invalidateElements=function(e){for(var t=0;t=.2*e.width&&this.retireTexture(e)},Ss.checkTextureFullness=function(e){var t=this.getTextureQueue(e.height);e.usedWidth/e.width>.8&&e.fullnessChecks>=10?Be(t,e):e.fullnessChecks++},Ss.retireTexture=function(e){var t=e.height,n=this.getTextureQueue(t),r=this.lookup;Be(n,e),e.retired=!0;for(var i=e.eleCaches,a=0;a=t)return a.retired=!1,a.usedWidth=0,a.invalidatedWidth=0,a.fullnessChecks=0,_e(a.eleCaches),a.context.setTransform(1,0,0,1,0,0),a.context.clearRect(0,0,a.width,a.height),Be(r,a),n.push(a),a}},Ss.queueElement=function(e,t){var n=this.getElementQueue(),r=this.getElementKeyToQueue(),i=this.getKey(e),a=r[i];if(a)a.level=Math.max(a.level,t),a.eles.merge(e),a.reqs++,n.updateItem(a);else{var o={eles:e.spawn().merge(e),level:t,reqs:1,key:i};n.push(o),r[i]=o}},Ss.dequeue=function(e){for(var t=this.getElementQueue(),n=this.getElementKeyToQueue(),r=[],i=this.lookup,a=0;a<1&&t.size()>0;a++){var o=t.pop(),s=o.key,l=o.eles[0],u=i.hasCache(l,o.level);if(n[s]=null,!u){r.push(o);var c=this.getBoundingBox(l);this.getElement(l,c,e,o.level,Es.dequeue)}}return r},Ss.removeFromQueue=function(e){var t=this.getElementQueue(),n=this.getElementKeyToQueue(),r=this.getKey(e),i=n[r];null!=i&&(1===i.eles.length?(i.reqs=ye,t.updateItem(i),t.pop(),n[r]=null):i.eles.unmerge(e))},Ss.onDequeue=function(e){this.onDequeues.push(e)},Ss.offDequeue=function(e){Be(this.onDequeues,e)},Ss.setupDequeueing=xs({deqRedrawThreshold:100,deqCost:.15,deqAvgCost:.1,deqNoDrawCost:.9,deqFastCost:.9,deq:function(e,t,n){return e.dequeue(t,n)},onDeqd:function(e,t){for(var n=0;n=3.99||n>2)return null;r.validateLayersElesOrdering(n,e);var o,s,l=r.layersByLevel,u=Math.pow(2,n),c=l[n]=l[n]||[];if(r.levelIsComplete(n,e))return c;!function(){var t=function(t){if(r.validateLayersElesOrdering(t,e),r.levelIsComplete(t,e))return s=l[t],!0},i=function(e){if(!s)for(var r=n+e;-4<=r&&r<=2&&!t(r);r+=e);};i(1),i(-1);for(var a=c.length-1;a>=0;a--){var o=c[a];o.invalid&&Be(c,o)}}();var h=function(t){var i=(t=t||{}).after;if(function(){if(!o){o=bt();for(var t=0;t16e6)return null;var a=r.makeLayer(o,n);if(null!=i){var s=c.indexOf(i)+1;c.splice(s,0,a)}else(void 0===t.insert||t.insert)&&c.unshift(a);return a};if(r.skipping&&!a)return null;for(var d=null,p=e.length/1,f=!a,g=0;g=p||!Bt(d.bb,v.boundingBox()))&&!(d=h({insert:!0,after:d})))return null;s||f?r.queueLayer(d,v):r.drawEleInLayer(d,v,n,t),d.eles.push(v),m[n]=d}}return s||(f?null:c)},Ps.getEleLevelForLayerLevel=function(e,t){return e},Ps.drawEleInLayer=function(e,t,n,r){var i=this.renderer,a=e.context,o=t.boundingBox();0!==o.w&&0!==o.h&&t.visible()&&(n=this.getEleLevelForLayerLevel(n,r),i.setImgSmoothing(a,!1),i.drawCachedElement(a,t,null,null,n,!0),i.setImgSmoothing(a,!0))},Ps.levelIsComplete=function(e,t){var n=this.layersByLevel[e];if(!n||0===n.length)return!1;for(var r=0,i=0;i0)return!1;if(a.invalid)return!1;r+=a.eles.length}return r===t.length},Ps.validateLayersElesOrdering=function(e,t){var n=this.layersByLevel[e];if(n)for(var r=0;r0){e=!0;break}}return e},Ps.invalidateElements=function(e){var t=this;0!==e.length&&(t.lastInvalidationTime=se(),0!==e.length&&t.haveLayers()&&t.updateElementsInLayers(e,function(e,n,r){t.invalidateLayer(e)}))},Ps.invalidateLayer=function(e){if(this.lastInvalidationTime=se(),!e.invalid){var t=e.level,n=e.eles,r=this.layersByLevel[t];Be(r,e),e.elesQueue=[],e.invalid=!0,e.replacement&&(e.replacement.invalid=!0);for(var i=0;i3&&void 0!==arguments[3])||arguments[3],i=!(arguments.length>4&&void 0!==arguments[4])||arguments[4],a=!(arguments.length>5&&void 0!==arguments[5])||arguments[5],o=this,s=t._private.rscratch;if(t.visible()&&!s.badLine&&null!=s.allpts&&!isNaN(s.allpts[0])){var l;n&&(l=n,e.translate(-l.x1,-l.y1));var u=a?t.pstyle("opacity").value:1,c=t.pstyle("line-style").value,h=t.pstyle("width").pfValue,d=t.pstyle("line-cap").value,p=function(){var n=arguments.length>0&&void 0!==arguments[0]?arguments[0]:u;e.lineWidth=h,e.lineCap=d,o.eleStrokeStyle(e,t,n),o.drawEdgePath(t,e,s.allpts,c),e.lineCap="butt"},f=function(){var n=arguments.length>0&&void 0!==arguments[0]?arguments[0]:u;o.drawArrowheads(e,t,n)};if(e.lineJoin="round","yes"===t.pstyle("ghost").value){var g=t.pstyle("ghost-offset-x").pfValue,v=t.pstyle("ghost-offset-y").pfValue,y=t.pstyle("ghost-opacity").value,m=u*y;e.translate(g,v),p(m),f(m),e.translate(-g,-v)}p(),f(),i&&o.drawEdgeOverlay(e,t),o.drawElementText(e,t,null,r),n&&e.translate(l.x1,l.y1)}},drawEdgeOverlay:function(e,t){if(t.visible()){var n=t.pstyle("overlay-opacity").value;if(0!==n){var r=this,i=r.usePaths(),a=t._private.rscratch,o=2*t.pstyle("overlay-padding").pfValue,s=t.pstyle("overlay-color").value;e.lineWidth=o,"self"!==a.edgeType||i?e.lineCap="round":e.lineCap="butt",r.colorStrokeStyle(e,s[0],s[1],s[2],n),r.drawEdgePath(t,e,a.allpts,"solid")}}},drawEdgePath:function(e,t,n,r){var i,a=e._private.rscratch,o=t,s=!1,l=this.usePaths(),u=e.pstyle("line-dash-pattern").pfValue,c=e.pstyle("line-dash-offset").pfValue;if(l){var h=n.join("$");a.pathCacheKey&&a.pathCacheKey===h?(i=t=a.pathCache,s=!0):(i=t=new Path2D,a.pathCacheKey=h,a.pathCache=i)}if(o.setLineDash)switch(r){case"dotted":o.setLineDash([1,1]);break;case"dashed":o.setLineDash(u),o.lineDashOffset=c;break;case"solid":o.setLineDash([])}if(!s&&!a.badLine)switch(t.beginPath&&t.beginPath(),t.moveTo(n[0],n[1]),a.edgeType){case"bezier":case"self":case"compound":case"multibezier":for(var d=2;d+35&&void 0!==arguments[5])||arguments[5],o=this;if(null==r){if(!o.eleTextBiggerThanMin(t))return}else if(!1===r)return;if(t.isNode()){var s=t.pstyle("label");if(!s||!s.value)return;var l=o.getLabelJustification(t);e.textAlign=l,e.textBaseline="bottom"}else{var u=t.pstyle("label"),c=t.pstyle("source-label"),h=t.pstyle("target-label");if(!(u&&u.value||c&&c.value||h&&h.value))return;e.textAlign="center",e.textBaseline="bottom"}var d,p=!n;n&&(d=n,e.translate(-d.x1,-d.y1)),null==i?(o.drawText(e,t,null,p,a),t.isEdge()&&(o.drawText(e,t,"source",p,a),o.drawText(e,t,"target",p,a))):o.drawText(e,t,i,p,a),n&&e.translate(d.x1,d.y1)},Ys.getFontCache=function(e){var t;this.fontCaches=this.fontCaches||[];for(var n=0;n2&&void 0!==arguments[2])||arguments[2],r=t.pstyle("font-style").strValue,i=t.pstyle("font-size").pfValue+"px",a=t.pstyle("font-family").strValue,o=t.pstyle("font-weight").strValue,s=t.pstyle("text-opacity").value*(n?t.effectiveOpacity():1),l=t.pstyle("text-outline-opacity").value*s,u=t.pstyle("color").value,c=t.pstyle("text-outline-color").value;e.font=r+" "+o+" "+i+" "+a,e.lineJoin="round",this.colorFillStyle(e,u[0],u[1],u[2],s),this.colorStrokeStyle(e,c[0],c[1],c[2],l)},Ys.getTextAngle=function(e,t){var n=e._private.rscratch,r=t?t+"-":"",i=e.pstyle(r+"text-rotation"),a=Ne(n,"labelAngle",t);return"autorotate"===i.strValue?e.isEdge()?a:0:"none"===i.strValue?0:i.pfValue},Ys.drawText=function(e,t,n){var r=!(arguments.length>3&&void 0!==arguments[3])||arguments[3],i=!(arguments.length>4&&void 0!==arguments[4])||arguments[4],a=t._private.rscratch,o=i?t.effectiveOpacity():1;if(0!==o&&0!==t.pstyle("text-opacity").value){"main"===n&&(n=null);var s,l,u=Ne(a,"labelX",n),c=Ne(a,"labelY",n),h=this.getLabelText(t,n);if(null!=h&&""!==h&&!isNaN(u)&&!isNaN(c)){this.setupTextStyle(e,t,i);var d,p=n?n+"-":"",f=Ne(a,"labelWidth",n),g=Ne(a,"labelHeight",n),v=t.pstyle(p+"text-margin-x").pfValue,y=t.pstyle(p+"text-margin-y").pfValue,m=t.isEdge(),b=t.pstyle("text-halign").value,x=t.pstyle("text-valign").value;switch(m&&(b="center",x="center"),u+=v,c+=y,0!==(d=r?this.getTextAngle(t,n):0)&&(s=u,l=c,e.translate(s,l),e.rotate(d),u=0,c=0),x){case"top":break;case"center":c+=g/2;break;case"bottom":c+=g}var w=t.pstyle("text-background-opacity").value,E=t.pstyle("text-border-opacity").value,k=t.pstyle("text-border-width").pfValue,C=t.pstyle("text-background-padding").pfValue;if(w>0||k>0&&E>0){var S=u-C;switch(b){case"left":S-=f;break;case"center":S-=f/2}var D=c-g-C,P=f+2*C,T=g+2*C;if(w>0){var M=e.fillStyle,B=t.pstyle("text-background-color").value;e.fillStyle="rgba("+B[0]+","+B[1]+","+B[2]+","+w*o+")","roundrectangle"==t.pstyle("text-background-shape").strValue?function(e,t,n,r,i){var a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:5;e.beginPath(),e.moveTo(t+a,n),e.lineTo(t+r-a,n),e.quadraticCurveTo(t+r,n,t+r,n+a),e.lineTo(t+r,n+i-a),e.quadraticCurveTo(t+r,n+i,t+r-a,n+i),e.lineTo(t+a,n+i),e.quadraticCurveTo(t,n+i,t,n+i-a),e.lineTo(t,n+a),e.quadraticCurveTo(t,n,t+a,n),e.closePath(),e.fill()}(e,S,D,P,T,2):e.fillRect(S,D,P,T),e.fillStyle=M}if(k>0&&E>0){var _=e.strokeStyle,N=e.lineWidth,I=t.pstyle("text-border-color").value,z=t.pstyle("text-border-style").value;if(e.strokeStyle="rgba("+I[0]+","+I[1]+","+I[2]+","+E*o+")",e.lineWidth=k,e.setLineDash)switch(z){case"dotted":e.setLineDash([1,1]);break;case"dashed":e.setLineDash([4,2]);break;case"double":e.lineWidth=k/4,e.setLineDash([]);break;case"solid":e.setLineDash([])}if(e.strokeRect(S,D,P,T),"double"===z){var L=k/2;e.strokeRect(S+L,D+L,P-2*L,T-2*L)}e.setLineDash&&e.setLineDash([]),e.lineWidth=N,e.strokeStyle=_}}var A=2*t.pstyle("text-outline-width").pfValue;if(A>0&&(e.lineWidth=A),"wrap"===t.pstyle("text-wrap").value){var O=Ne(a,"labelWrapCachedLines",n),R=Ne(a,"labelLineHeight",n),F=f/2,V=this.getLabelJustification(t);switch("auto"===V||("left"===b?"left"===V?u+=-f:"center"===V&&(u+=-F):"center"===b?"left"===V?u+=-F:"right"===V&&(u+=F):"right"===b&&("center"===V?u+=F:"right"===V&&(u+=f))),x){case"top":c-=(O.length-1)*R;break;case"center":case"bottom":c-=(O.length-1)*R}for(var q=0;q0&&e.strokeText(O[q],u,c),e.fillText(O[q],u,c),c+=R}else A>0&&e.strokeText(h,u,c),e.fillText(h,u,c);0!==d&&(e.rotate(-d),e.translate(-s,-l))}}};var Xs={drawNode:function(e,t,n){var r,i,a=!(arguments.length>3&&void 0!==arguments[3])||arguments[3],o=!(arguments.length>4&&void 0!==arguments[4])||arguments[4],s=!(arguments.length>5&&void 0!==arguments[5])||arguments[5],l=this,u=t._private,c=u.rscratch,h=t.position();if(v(h.x)&&v(h.y)&&t.visible()){var d,p,f=s?t.effectiveOpacity():1,g=l.usePaths(),y=!1,m=t.padding();r=t.width()+2*m,i=t.height()+2*m,n&&(p=n,e.translate(-p.x1,-p.y1));for(var b=t.pstyle("background-image").value,x=new Array(b.length),w=new Array(b.length),E=0,k=0;k0&&void 0!==arguments[0]?arguments[0]:T;l.eleFillStyle(e,t,n)},I=function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:_;l.colorStrokeStyle(e,M[0],M[1],M[2],t)},z=t.pstyle("shape").strValue,L=t.pstyle("shape-polygon-points").pfValue;if(g){e.translate(h.x,h.y);var A=l.nodePathCache=l.nodePathCache||[],O=de("polygon"===z?z+","+L.join(","):z,""+i,""+r),R=A[O];null!=R?(d=R,y=!0,c.pathCache=d):(d=new Path2D,A[O]=c.pathCache=d)}var F=function(){if(!y){var n=h;g&&(n={x:0,y:0}),l.nodeShapes[l.getNodeShape(t)].draw(d||e,n.x,n.y,r,i)}g?e.fill(d):e.fill()},V=function(){for(var n=arguments.length>0&&void 0!==arguments[0]?arguments[0]:f,r=u.backgrounding,i=0,a=0;a0&&void 0!==arguments[0]&&arguments[0],a=arguments.length>1&&void 0!==arguments[1]?arguments[1]:f;l.hasPie(t)&&(l.drawPie(e,t,a),n&&(g||l.nodeShapes[l.getNodeShape(t)].draw(e,h.x,h.y,r,i)))},j=function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:f,n=(D>0?D:-D)*t,r=D>0?0:255;0!==D&&(l.colorFillStyle(e,r,r,r,n),g?e.fill(d):e.fill())},Y=function(){if(P>0){if(e.lineWidth=P,e.lineCap="butt",e.setLineDash)switch(B){case"dotted":e.setLineDash([1,1]);break;case"dashed":e.setLineDash([4,2]);break;case"solid":case"double":e.setLineDash([])}if(g?e.stroke(d):e.stroke(),"double"===B){e.lineWidth=P/3;var t=e.globalCompositeOperation;e.globalCompositeOperation="destination-out",g?e.stroke(d):e.stroke(),e.globalCompositeOperation=t}e.setLineDash&&e.setLineDash([])}};if("yes"===t.pstyle("ghost").value){var X=t.pstyle("ghost-offset-x").pfValue,W=t.pstyle("ghost-offset-y").pfValue,H=t.pstyle("ghost-opacity").value,K=H*f;e.translate(X,W),N(H*T),F(),V(K),q(0!==D||0!==P),j(K),I(H*_),Y(),e.translate(-X,-W)}N(),F(),V(),q(0!==D||0!==P),j(),I(),Y(),g&&e.translate(-h.x,-h.y),l.drawElementText(e,t,null,a),o&&l.drawNodeOverlay(e,t,h,r,i),n&&e.translate(p.x1,p.y1)}},drawNodeOverlay:function(e,t,n,r,i){if(t.visible()){var a=t.pstyle("overlay-padding").pfValue,o=t.pstyle("overlay-opacity").value,s=t.pstyle("overlay-color").value;if(o>0){if(n=n||t.position(),null==r||null==i){var l=t.padding();r=t.width()+2*l,i=t.height()+2*l}this.colorFillStyle(e,s[0],s[1],s[2],o),this.nodeShapes.roundrectangle.draw(e,n.x,n.y,r+2*a,i+2*a),e.fill()}}},hasPie:function(e){return(e=e[0])._private.hasPie},drawPie:function(e,t,n,r){t=t[0],r=r||t.position();var i=t.cy().style(),a=t.pstyle("pie-size"),o=r.x,s=r.y,l=t.width(),u=t.height(),c=Math.min(l,u)/2,h=0;this.usePaths()&&(o=0,s=0),"%"===a.units?c*=a.pfValue:void 0!==a.pfValue&&(c=a.pfValue/2);for(var d=1;d<=i.pieBackgroundN;d++){var p=t.pstyle("pie-"+d+"-background-size").value,f=t.pstyle("pie-"+d+"-background-color").value,g=t.pstyle("pie-"+d+"-background-opacity").value*n,v=p/100;v+h>1&&(v=1-h);var y=1.5*Math.PI+2*Math.PI*h,m=y+2*Math.PI*v;0===p||h>=1||h+v>1||(e.beginPath(),e.moveTo(o,s),e.arc(o,s,c,y,m),e.closePath(),this.colorFillStyle(e,f[0],f[1],f[2],g),e.fill(),h+=v)}}},Ws={};Ws.getPixelRatio=function(){var e=this.data.contexts[0];if(null!=this.forcedPixelRatio)return this.forcedPixelRatio;var t=e.backingStorePixelRatio||e.webkitBackingStorePixelRatio||e.mozBackingStorePixelRatio||e.msBackingStorePixelRatio||e.oBackingStorePixelRatio||e.backingStorePixelRatio||1;return(window.devicePixelRatio||1)/t},Ws.paintCache=function(e){for(var t,n=this.paintCaches=this.paintCaches||[],r=!0,i=0;io.minMbLowQualFrames&&(o.motionBlurPxRatio=o.mbPxRBlurry)),o.clearingMotionBlur&&(o.motionBlurPxRatio=1),o.textureDrawLastFrame&&!h&&(c[o.NODE]=!0,c[o.SELECT_BOX]=!0);var m=l.style(),b=l.zoom(),x=void 0!==i?i:b,w=l.pan(),E={x:w.x,y:w.y},k={zoom:b,pan:{x:w.x,y:w.y}},C=o.prevViewport;void 0===C||k.zoom!==C.zoom||k.pan.x!==C.pan.x||k.pan.y!==C.pan.y||g&&!f||(o.motionBlurPxRatio=1),a&&(E=a),x*=s,E.x*=s,E.y*=s;var S=o.getCachedZSortedEles();function D(e,t,n,r,i){var a=e.globalCompositeOperation;e.globalCompositeOperation="destination-out",o.colorFillStyle(e,255,255,255,o.motionBlurTransparency),e.fillRect(t,n,r,i),e.globalCompositeOperation=a}function P(e,r){var s,l,c,h;o.clearingMotionBlur||e!==u.bufferContexts[o.MOTIONBLUR_BUFFER_NODE]&&e!==u.bufferContexts[o.MOTIONBLUR_BUFFER_DRAG]?(s=E,l=x,c=o.canvasWidth,h=o.canvasHeight):(s={x:w.x*p,y:w.y*p},l=b*p,c=o.canvasWidth*p,h=o.canvasHeight*p),e.setTransform(1,0,0,1,0,0),"motionBlur"===r?D(e,0,0,c,h):t||void 0!==r&&!r||e.clearRect(0,0,c,h),n||(e.translate(s.x,s.y),e.scale(l,l)),a&&e.translate(a.x,a.y),i&&e.scale(i,i)}if(h||(o.textureDrawLastFrame=!1),h){if(o.textureDrawLastFrame=!0,!o.textureCache){o.textureCache={},o.textureCache.bb=l.mutableElements().boundingBox(),o.textureCache.texture=o.data.bufferCanvases[o.TEXTURE_BUFFER];var T=o.data.bufferContexts[o.TEXTURE_BUFFER];T.setTransform(1,0,0,1,0,0),T.clearRect(0,0,o.canvasWidth*o.textureMult,o.canvasHeight*o.textureMult),o.render({forcedContext:T,drawOnlyNodeLayer:!0,forcedPxRatio:s*o.textureMult}),(k=o.textureCache.viewport={zoom:l.zoom(),pan:l.pan(),width:o.canvasWidth,height:o.canvasHeight}).mpan={x:(0-k.pan.x)/k.zoom,y:(0-k.pan.y)/k.zoom}}c[o.DRAG]=!1,c[o.NODE]=!1;var M=u.contexts[o.NODE],B=o.textureCache.texture;k=o.textureCache.viewport;M.setTransform(1,0,0,1,0,0),d?D(M,0,0,k.width,k.height):M.clearRect(0,0,k.width,k.height);var _=m.core("outside-texture-bg-color").value,N=m.core("outside-texture-bg-opacity").value;o.colorFillStyle(M,_[0],_[1],_[2],N),M.fillRect(0,0,k.width,k.height);b=l.zoom();P(M,!1),M.clearRect(k.mpan.x,k.mpan.y,k.width/k.zoom/s,k.height/k.zoom/s),M.drawImage(B,k.mpan.x,k.mpan.y,k.width/k.zoom/s,k.height/k.zoom/s)}else o.textureOnViewport&&!t&&(o.textureCache=null);var I=l.extent(),z=o.pinching||o.hoverData.dragging||o.swipePanning||o.data.wheelZooming||o.hoverData.draggingEles,L=o.hideEdgesOnViewport&&z,A=[];if(A[o.NODE]=!c[o.NODE]&&d&&!o.clearedForMotionBlur[o.NODE]||o.clearingMotionBlur,A[o.NODE]&&(o.clearedForMotionBlur[o.NODE]=!0),A[o.DRAG]=!c[o.DRAG]&&d&&!o.clearedForMotionBlur[o.DRAG]||o.clearingMotionBlur,A[o.DRAG]&&(o.clearedForMotionBlur[o.DRAG]=!0),c[o.NODE]||n||r||A[o.NODE]){var O=d&&!A[o.NODE]&&1!==p;P(M=t||(O?o.data.bufferContexts[o.MOTIONBLUR_BUFFER_NODE]:u.contexts[o.NODE]),d&&!O?"motionBlur":void 0),L?o.drawCachedNodes(M,S.nondrag,s,I):o.drawLayeredElements(M,S.nondrag,s,I),o.debug&&o.drawDebugPoints(M,S.nondrag),n||d||(c[o.NODE]=!1)}if(!r&&(c[o.DRAG]||n||A[o.DRAG])){O=d&&!A[o.DRAG]&&1!==p;P(M=t||(O?o.data.bufferContexts[o.MOTIONBLUR_BUFFER_DRAG]:u.contexts[o.DRAG]),d&&!O?"motionBlur":void 0),L?o.drawCachedNodes(M,S.drag,s,I):o.drawCachedElements(M,S.drag,s,I),o.debug&&o.drawDebugPoints(M,S.drag),n||d||(c[o.DRAG]=!1)}if(o.showFps||!r&&c[o.SELECT_BOX]&&!n){if(P(M=t||u.contexts[o.SELECT_BOX]),1==o.selection[4]&&(o.hoverData.selecting||o.touchData.selecting)){b=o.cy.zoom();var R=m.core("selection-box-border-width").value/b;M.lineWidth=R,M.fillStyle="rgba("+m.core("selection-box-color").value[0]+","+m.core("selection-box-color").value[1]+","+m.core("selection-box-color").value[2]+","+m.core("selection-box-opacity").value+")",M.fillRect(o.selection[0],o.selection[1],o.selection[2]-o.selection[0],o.selection[3]-o.selection[1]),R>0&&(M.strokeStyle="rgba("+m.core("selection-box-border-color").value[0]+","+m.core("selection-box-border-color").value[1]+","+m.core("selection-box-border-color").value[2]+","+m.core("selection-box-opacity").value+")",M.strokeRect(o.selection[0],o.selection[1],o.selection[2]-o.selection[0],o.selection[3]-o.selection[1]))}if(u.bgActivePosistion&&!o.hoverData.selecting){b=o.cy.zoom();var F=u.bgActivePosistion;M.fillStyle="rgba("+m.core("active-bg-color").value[0]+","+m.core("active-bg-color").value[1]+","+m.core("active-bg-color").value[2]+","+m.core("active-bg-opacity").value+")",M.beginPath(),M.arc(F.x,F.y,m.core("active-bg-size").pfValue/b,0,2*Math.PI),M.fill()}var V=o.lastRedrawTime;if(o.showFps&&V){V=Math.round(V);var q=Math.round(1e3/V);M.setTransform(1,0,0,1,0,0),M.fillStyle="rgba(255, 0, 0, 0.75)",M.strokeStyle="rgba(255, 0, 0, 0.75)",M.lineWidth=1,M.fillText("1 frame = "+V+" ms = "+q+" fps",0,20);M.strokeRect(0,30,250,20),M.fillRect(0,30,250*Math.min(q/60,1),20)}n||(c[o.SELECT_BOX]=!1)}if(d&&1!==p){var j=u.contexts[o.NODE],Y=o.data.bufferCanvases[o.MOTIONBLUR_BUFFER_NODE],X=u.contexts[o.DRAG],W=o.data.bufferCanvases[o.MOTIONBLUR_BUFFER_DRAG],H=function(e,t,n){e.setTransform(1,0,0,1,0,0),n||!y?e.clearRect(0,0,o.canvasWidth,o.canvasHeight):D(e,0,0,o.canvasWidth,o.canvasHeight);var r=p;e.drawImage(t,0,0,o.canvasWidth*r,o.canvasHeight*r,0,0,o.canvasWidth,o.canvasHeight)};(c[o.NODE]||A[o.NODE])&&(H(j,Y,A[o.NODE]),c[o.NODE]=!1),(c[o.DRAG]||A[o.DRAG])&&(H(X,W,A[o.DRAG]),c[o.DRAG]=!1)}o.prevViewport=k,o.clearingMotionBlur&&(o.clearingMotionBlur=!1,o.motionBlurCleared=!0,o.motionBlur=!0),d&&(o.motionBlurTimeout=setTimeout(function(){o.motionBlurTimeout=null,o.clearedForMotionBlur[o.NODE]=!1,o.clearedForMotionBlur[o.DRAG]=!1,o.motionBlur=!1,o.clearingMotionBlur=!h,o.mbFrames=0,c[o.NODE]=!0,c[o.DRAG]=!0,o.redraw()},100)),t||l.emit("render")};for(var Hs={drawPolygonPath:function(e,t,n,r,i,a){var o=r/2,s=i/2;e.beginPath&&e.beginPath(),e.moveTo(t+o*a[0],n+s*a[1]);for(var l=1;l0&&a>0){d.clearRect(0,0,i,a),d.globalCompositeOperation="source-over";var p=this.getCachedZSortedEles();if(e.full)d.translate(-n.x1*l,-n.y1*l),d.scale(l,l),this.drawElements(d,p),d.scale(1/l,1/l),d.translate(n.x1*l,n.y1*l);else{var f=t.pan(),g={x:f.x*l,y:f.y*l};l*=t.zoom(),d.translate(g.x,g.y),d.scale(l,l),this.drawElements(d,p),d.scale(1/l,1/l),d.translate(-g.x,-g.y)}e.bg&&(d.globalCompositeOperation="destination-over",d.fillStyle=e.bg,d.rect(0,0,i,a),d.fill())}return h},Js.png=function(e){return tl(e,this.bufferCanvasImage(e),"image/png")},Js.jpg=function(e){return tl(e,this.bufferCanvasImage(e),"image/jpeg")};var nl={nodeShapeImpl:function(e,t,n,r,i,a,o){switch(e){case"ellipse":return this.drawEllipsePath(t,n,r,i,a);case"polygon":return this.drawPolygonPath(t,n,r,i,a,o);case"roundrectangle":case"round-rectangle":return this.drawRoundRectanglePath(t,n,r,i,a);case"cutrectangle":case"cut-rectangle":return this.drawCutRectanglePath(t,n,r,i,a);case"bottomroundrectangle":case"bottom-round-rectangle":return this.drawBottomRoundRectanglePath(t,n,r,i,a);case"barrel":return this.drawBarrelPath(t,n,r,i,a)}}},rl=al,il=al.prototype;function al(e){var t=this;t.data={canvases:new Array(il.CANVAS_LAYERS),contexts:new Array(il.CANVAS_LAYERS),canvasNeedsRedraw:new Array(il.CANVAS_LAYERS),bufferCanvases:new Array(il.BUFFER_COUNT),bufferContexts:new Array(il.CANVAS_LAYERS)};t.data.canvasContainer=document.createElement("div");var n=t.data.canvasContainer.style;t.data.canvasContainer.style["-webkit-tap-highlight-color"]="rgba(0,0,0,0)",n.position="relative",n.zIndex="0",n.overflow="hidden";var r=e.cy.container();r.appendChild(t.data.canvasContainer),r.style["-webkit-tap-highlight-color"]="rgba(0,0,0,0)";var i={"-webkit-user-select":"none","-moz-user-select":"-moz-none","user-select":"none","-webkit-tap-highlight-color":"rgba(0,0,0,0)","outline-style":"none"};S()&&(i["-ms-touch-action"]="none",i["touch-action"]="none");for(var a=0;an?1:t>=n?0:NaN}function e(t){return 1===t.length&&(t=function(t){return function(e,r){return n(t(e),r)}}(t)),{left:function(n,e,r,i){for(null==r&&(r=0),null==i&&(i=n.length);r>>1;t(n[o],e)<0?r=o+1:i=o}return r},right:function(n,e,r,i){for(null==r&&(r=0),null==i&&(i=n.length);r>>1;t(n[o],e)>0?i=o:r=o+1}return r}}}function r(t,n){return[t,n]}function i(t){return null===t?NaN:+t}function o(t,n){var e,r,o=t.length,u=0,a=-1,c=0,s=0;if(null==n)for(;++a1)return s/(u-1)}function u(t,n){var e=o(t,n);return e?Math.sqrt(e):e}function a(t,n){var e,r,i,o=t.length,u=-1;if(null==n){for(;++u=e)for(r=i=e;++ue&&(r=e),i=e)for(r=i=e;++ue&&(r=e),i0)return[t];if((r=n0)for(t=Math.ceil(t/u),n=Math.floor(n/u),o=new Array(i=Math.ceil(n-t+1));++a=0?(o>=Hs?10:o>=js?5:o>=Xs?2:1)*Math.pow(10,i):-Math.pow(10,-i)/(o>=Hs?10:o>=js?5:o>=Xs?2:1)}function p(t,n,e){var r=Math.abs(n-t)/Math.max(0,e),i=Math.pow(10,Math.floor(Math.log(r)/Math.LN10)),o=r/i;return o>=Hs?i*=10:o>=js?i*=5:o>=Xs&&(i*=2),n=1)return+e(t[r-1],r-1,t);var r,o=(r-1)*n,u=Math.floor(o),a=+e(t[u],u,t);return a+(+e(t[u+1],u+1,t)-a)*(o-u)}}function g(t){for(var n,e,r,i=t.length,o=-1,u=0;++o=0;)for(n=(r=t[i]).length;--n>=0;)e[--u]=r[n];return e}function _(t,n){var e,r,i=t.length,o=-1;if(null==n){for(;++o=e)for(r=e;++oe&&(r=e)}else for(;++o=e)for(r=e;++oe&&(r=e);return r}function y(t){if(!(i=t.length))return[];for(var n=-1,e=_(t,m),r=new Array(e);++n=0&&"xmlns"!==(n=t.slice(0,e))&&(t=t.slice(e+1)),tf.hasOwnProperty(n)?{space:tf[n],local:t}:t}function A(t){var n=E(t);return(n.local?function(t){return function(){return this.ownerDocument.createElementNS(t.space,t.local)}}:function(t){return function(){var n=this.ownerDocument,e=this.namespaceURI;return e===Ks&&n.documentElement.namespaceURI===Ks?n.createElement(t):n.createElementNS(e,t)}})(n)}function C(){}function z(t){return null==t?C:function(){return this.querySelector(t)}}function P(){return[]}function R(t){return null==t?P:function(){return this.querySelectorAll(t)}}function L(t){return new Array(t.length)}function q(t,n){this.ownerDocument=t.ownerDocument,this.namespaceURI=t.namespaceURI,this._next=null,this._parent=t,this.__data__=n}function D(t,n,e,r,i,o){for(var u,a=0,c=n.length,s=o.length;an?1:t>=n?0:NaN}function F(t){return t.ownerDocument&&t.ownerDocument.defaultView||t.document&&t||t.defaultView}function I(t,n){return t.style.getPropertyValue(n)||F(t).getComputedStyle(t,null).getPropertyValue(n)}function Y(t){return t.trim().split(/^|\s+/)}function B(t){return t.classList||new H(t)}function H(t){this._node=t,this._names=Y(t.getAttribute("class")||"")}function j(t,n){for(var e=B(t),r=-1,i=n.length;++r>8&15|n>>4&240,n>>4&15|240&n,(15&n)<<4|15&n,1)):(n=df.exec(t))?At(parseInt(n[1],16)):(n=vf.exec(t))?new Rt(n[1],n[2],n[3],1):(n=gf.exec(t))?new Rt(255*n[1]/100,255*n[2]/100,255*n[3]/100,1):(n=_f.exec(t))?Ct(n[1],n[2],n[3],n[4]):(n=yf.exec(t))?Ct(255*n[1]/100,255*n[2]/100,255*n[3]/100,n[4]):(n=mf.exec(t))?Lt(n[1],n[2]/100,n[3]/100,1):(n=xf.exec(t))?Lt(n[1],n[2]/100,n[3]/100,n[4]):bf.hasOwnProperty(t)?At(bf[t]):"transparent"===t?new Rt(NaN,NaN,NaN,0):null}function At(t){return new Rt(t>>16&255,t>>8&255,255&t,1)}function Ct(t,n,e,r){return r<=0&&(t=n=e=NaN),new Rt(t,n,e,r)}function zt(t){return t instanceof St||(t=Et(t)),t?(t=t.rgb(),new Rt(t.r,t.g,t.b,t.opacity)):new Rt}function Pt(t,n,e,r){return 1===arguments.length?zt(t):new Rt(t,n,e,null==r?1:r)}function Rt(t,n,e,r){this.r=+t,this.g=+n,this.b=+e,this.opacity=+r}function Lt(t,n,e,r){return r<=0?t=n=e=NaN:e<=0||e>=1?t=n=NaN:n<=0&&(t=NaN),new Dt(t,n,e,r)}function qt(t,n,e,r){return 1===arguments.length?function(t){if(t instanceof Dt)return new Dt(t.h,t.s,t.l,t.opacity);if(t instanceof St||(t=Et(t)),!t)return new Dt;if(t instanceof Dt)return t;var n=(t=t.rgb()).r/255,e=t.g/255,r=t.b/255,i=Math.min(n,e,r),o=Math.max(n,e,r),u=NaN,a=o-i,c=(o+i)/2;return a?(u=n===o?(e-r)/a+6*(e0&&c<1?0:u,new Dt(u,a,c,t.opacity)}(t):new Dt(t,n,e,null==r?1:r)}function Dt(t,n,e,r){this.h=+t,this.s=+n,this.l=+e,this.opacity=+r}function Ut(t,n,e){return 255*(t<60?n+(e-n)*t/60:t<180?e:t<240?n+(e-n)*(240-t)/60:n)}function Ot(t){if(t instanceof It)return new It(t.l,t.a,t.b,t.opacity);if(t instanceof Vt){var n=t.h*wf;return new It(t.l,Math.cos(n)*t.c,Math.sin(n)*t.c,t.opacity)}t instanceof Rt||(t=zt(t));var e=jt(t.r),r=jt(t.g),i=jt(t.b),o=Yt((.4124564*e+.3575761*r+.1804375*i)/Tf),u=Yt((.2126729*e+.7151522*r+.072175*i)/Nf);return new It(116*u-16,500*(o-u),200*(u-Yt((.0193339*e+.119192*r+.9503041*i)/kf)),t.opacity)}function Ft(t,n,e,r){return 1===arguments.length?Ot(t):new It(t,n,e,null==r?1:r)}function It(t,n,e,r){this.l=+t,this.a=+n,this.b=+e,this.opacity=+r}function Yt(t){return t>Cf?Math.pow(t,1/3):t/Af+Sf}function Bt(t){return t>Ef?t*t*t:Af*(t-Sf)}function Ht(t){return 255*(t<=.0031308?12.92*t:1.055*Math.pow(t,1/2.4)-.055)}function jt(t){return(t/=255)<=.04045?t/12.92:Math.pow((t+.055)/1.055,2.4)}function Xt(t,n,e,r){return 1===arguments.length?function(t){if(t instanceof Vt)return new Vt(t.h,t.c,t.l,t.opacity);t instanceof It||(t=Ot(t));var n=Math.atan2(t.b,t.a)*Mf;return new Vt(n<0?n+360:n,Math.sqrt(t.a*t.a+t.b*t.b),t.l,t.opacity)}(t):new Vt(t,n,e,null==r?1:r)}function Vt(t,n,e,r){this.h=+t,this.c=+n,this.l=+e,this.opacity=+r}function $t(t,n,e,r){return 1===arguments.length?function(t){if(t instanceof Wt)return new Wt(t.h,t.s,t.l,t.opacity);t instanceof Rt||(t=zt(t));var n=t.r/255,e=t.g/255,r=t.b/255,i=(Df*r+Lf*n-qf*e)/(Df+Lf-qf),o=r-i,u=(Rf*(e-i)-zf*o)/Pf,a=Math.sqrt(u*u+o*o)/(Rf*i*(1-i)),c=a?Math.atan2(u,o)*Mf-120:NaN;return new Wt(c<0?c+360:c,a,i,t.opacity)}(t):new Wt(t,n,e,null==r?1:r)}function Wt(t,n,e,r){this.h=+t,this.s=+n,this.l=+e,this.opacity=+r}function Zt(t,n,e,r,i){var o=t*t,u=o*t;return((1-3*t+3*o-u)*n+(4-6*o+3*u)*e+(1+3*t+3*o-3*u)*r+u*i)/6}function Gt(t){var n=t.length-1;return function(e){var r=e<=0?e=0:e>=1?(e=1,n-1):Math.floor(e*n),i=t[r],o=t[r+1],u=r>0?t[r-1]:2*i-o,a=r180||e<-180?e-360*Math.round(e/360):e):Jt(isNaN(t)?n:t)}function nn(t){return 1==(t=+t)?en:function(n,e){return e-n?function(t,n,e){return t=Math.pow(t,e),n=Math.pow(n,e)-t,e=1/e,function(r){return Math.pow(t+r*n,e)}}(n,e,t):Jt(isNaN(n)?e:n)}}function en(t,n){var e=n-t;return e?Kt(t,e):Jt(isNaN(t)?n:t)}function rn(t){return function(n){var e,r,i=n.length,o=new Array(i),u=new Array(i),a=new Array(i);for(e=0;eo&&(i=n.slice(o,i),a[u]?a[u]+=i:a[++u]=i),(e=e[0])===(r=r[0])?a[u]?a[u]+=r:a[++u]=r:(a[++u]=null,c.push({i:u,x:an(e,r)})),o=$f.lastIndex;return o180?n+=360:n-t>180&&(t+=360),o.push({i:e.push(i(e)+"rotate(",null,r)-2,x:an(t,n)})):n&&e.push(i(e)+"rotate("+n+r)}(o.rotate,u.rotate,a,c),function(t,n,e,o){t!==n?o.push({i:e.push(i(e)+"skewX(",null,r)-2,x:an(t,n)}):n&&e.push(i(e)+"skewX("+n+r)}(o.skewX,u.skewX,a,c),function(t,n,e,r,o,u){if(t!==e||n!==r){var a=o.push(i(o)+"scale(",null,",",null,")");u.push({i:a-4,x:an(t,e)},{i:a-2,x:an(n,r)})}else 1===e&&1===r||o.push(i(o)+"scale("+e+","+r+")")}(o.scaleX,o.scaleY,u.scaleX,u.scaleY,a,c),o=u=null,function(t){for(var n,e=-1,r=c.length;++e=0&&n._call.call(null,t),n=n._next;--cl}function Tn(){pl=(hl=vl.now())+dl,cl=sl=0;try{Mn()}finally{cl=0,function(){var t,n,e=Yf,r=1/0;for(;e;)e._call?(r>e._time&&(r=e._time),t=e,e=e._next):(n=e._next,e._next=null,e=t?t._next=n:Yf=n);Bf=t,kn(r)}(),pl=0}}function Nn(){var t=vl.now(),n=t-hl;n>ll&&(dl-=n,hl=t)}function kn(t){if(!cl){sl&&(sl=clearTimeout(sl));t-pl>24?(t<1/0&&(sl=setTimeout(Tn,t-vl.now()-dl)),fl&&(fl=clearInterval(fl))):(fl||(hl=vl.now(),fl=setInterval(Nn,ll)),cl=1,gl(Tn))}}function Sn(t,n,e){var r=new bn;return n=null==n?0:+n,r.restart(function(e){r.stop(),t(e+n)},n,e),r}function En(t,n,e,r,i,o){var u=t.__transition;if(u){if(e in u)return}else t.__transition={};(function(t,n,e){function r(c){var s,f,l,h;if(e.state!==xl)return o();for(s in a)if((h=a[s]).name===e.name){if(h.state===wl)return Sn(r);h.state===Ml?(h.state=Nl,h.timer.stop(),h.on.call("interrupt",t,t.__data__,h.index,h.group),delete a[s]):+sml)throw new Error("too late; already scheduled");return e}function Cn(t,n){var e=zn(t,n);if(e.state>bl)throw new Error("too late; already started");return e}function zn(t,n){var e=t.__transition;if(!e||!(e=e[n]))throw new Error("transition not found");return e}function Pn(t,n){var e,r,i,o=t.__transition,u=!0;if(o){n=null==n?null:n+"";for(i in o)(e=o[i]).name===n?(r=e.state>bl&&e.stateMath.abs(t[1]-D[1])?b=!0:x=!0),D=t,m=!0,$n(),o()}function o(){var t;switch(_=D[0]-q[0],y=D[1]-q[1],T){case th:case Kl:N&&(_=Math.max(C-a,Math.min(P-p,_)),s=a+_,d=p+_),k&&(y=Math.max(z-l,Math.min(R-v,y)),h=l+y,g=v+y);break;case nh:N<0?(_=Math.max(C-a,Math.min(P-a,_)),s=a+_,d=p):N>0&&(_=Math.max(C-p,Math.min(P-p,_)),s=a,d=p+_),k<0?(y=Math.max(z-l,Math.min(R-l,y)),h=l+y,g=v):k>0&&(y=Math.max(z-v,Math.min(R-v,y)),h=l,g=v+y);break;case eh:N&&(s=Math.max(C,Math.min(P,a-_*N)),d=Math.max(C,Math.min(P,p+_*N))),k&&(h=Math.max(z,Math.min(R,l-y*k)),g=Math.max(z,Math.min(R,v+y*k)))}d0&&(a=s-_),k<0?v=g-y:k>0&&(l=h-y),T=th,F.attr("cursor",uh.selection),o());break;default:return}$n()},!0).on("keyup.brush",function(){switch(t.event.keyCode){case 16:L&&(x=b=L=!1,o());break;case 18:T===eh&&(N<0?p=d:N>0&&(a=s),k<0?v=g:k>0&&(l=h),T=nh,o());break;case 32:T===th&&(t.event.altKey?(N&&(p=d-_*N,a=s+_*N),k&&(v=g-y*k,l=h+y*k),T=eh):(N<0?p=d:N>0&&(a=s),k<0?v=g:k>0&&(l=h),T=nh),F.attr("cursor",uh[M]),o());break;default:return}$n()},!0).on("mousemove.brush",e,!0).on("mouseup.brush",u,!0);_t(t.event.view)}Vn(),Pn(w),r.call(w),U.start()}}function a(){var t=this.__brush||{selection:null};return t.extent=s.apply(this,arguments),t.dim=n,t}var c,s=Gn,f=Zn,l=N(e,"start","brush","end"),h=6;return e.move=function(t,e){t.selection?t.on("start.brush",function(){i(this,arguments).beforestart().start()}).on("interrupt.brush end.brush",function(){i(this,arguments).end()}).tween("brush",function(){function t(t){u.selection=1===t&&Jn(s)?null:f(t),r.call(o),a.brush()}var o=this,u=o.__brush,a=i(o,arguments),c=u.selection,s=n.input("function"==typeof e?e.apply(this,arguments):e,u.extent),f=fn(c,s);return c&&s?t:t(1)}):t.each(function(){var t=arguments,o=this.__brush,u=n.input("function"==typeof e?e.apply(this,t):e,o.extent),a=i(this,t).beforestart();Pn(this),o.selection=null==u||Jn(u)?null:u,r.call(this),a.start().brush().end()})},o.prototype={beforestart:function(){return 1==++this.active&&(this.state.emitter=this,this.starting=!0),this},start:function(){return this.starting&&(this.starting=!1,this.emit("start")),this},brush:function(){return this.emit("brush"),this},end:function(){return 0==--this.active&&(delete this.state.emitter,this.emit("end")),this},emit:function(t){it(new function(t,n,e){this.target=t,this.type=n,this.selection=e}(e,t,n.output(this.state.selection)),l.apply,l,[t,this.that,this.args])}},e.extent=function(t){return arguments.length?(s="function"==typeof t?t:Xn([[+t[0][0],+t[0][1]],[+t[1][0],+t[1][1]]]),e):s},e.filter=function(t){return arguments.length?(f="function"==typeof t?t:Xn(!!t),e):f},e.handleSize=function(t){return arguments.length?(h=+t,e):h},e.on=function(){var t=l.on.apply(l,arguments);return t===l?e:t},e}function te(t){return function(){return t}}function ne(){this._x0=this._y0=this._x1=this._y1=null,this._=""}function ee(){return new ne}function re(t){return t.source}function ie(t){return t.target}function oe(t){return t.radius}function ue(t){return t.startAngle}function ae(t){return t.endAngle}function ce(){}function se(t,n){var e=new ce;if(t instanceof ce)t.each(function(t,n){e.set(n,t)});else if(Array.isArray(t)){var r,i=-1,o=t.length;if(null==n)for(;++i=u?s=!0:(e=t.charCodeAt(a++))===Nh?f=!0:e===kh&&(f=!0,t.charCodeAt(a)===Nh&&++a),t.slice(r+1,n-1).replace(/""/g,'"')}for(;a=(o=(v+_)/2))?v=o:_=o,(f=e>=(u=(g+y)/2))?g=u:y=u,i=p,!(p=p[l=f<<1|s]))return i[l]=d,t;if(a=+t._x.call(null,p.data),c=+t._y.call(null,p.data),n===a&&e===c)return d.next=p,i?i[l]=d:t._root=d,t;do{i=i?i[l]=new Array(4):t._root=new Array(4),(s=n>=(o=(v+_)/2))?v=o:_=o,(f=e>=(u=(g+y)/2))?g=u:y=u}while((l=f<<1|s)==(h=(c>=u)<<1|a>=o));return i[h]=p,i[l]=d,t}function be(t,n,e,r,i){this.node=t,this.x0=n,this.y0=e,this.x1=r,this.y1=i}function we(t){return t[0]}function Me(t){return t[1]}function Te(t,n,e){var r=new Ne(null==n?we:n,null==e?Me:e,NaN,NaN,NaN,NaN);return null==t?r:r.addAll(t)}function Ne(t,n,e,r,i,o){this._x=t,this._y=n,this._x0=e,this._y0=r,this._x1=i,this._y1=o,this._root=void 0}function ke(t){for(var n={data:t.data},e=n;t=t.next;)e=e.next={data:t.data};return n}function Se(t){return t.x+t.vx}function Ee(t){return t.y+t.vy}function Ae(t){return t.index}function Ce(t,n){var e=t.get(n);if(!e)throw new Error("missing: "+n);return e}function ze(t){return t.x}function Pe(t){return t.y}function Re(t,n){if((e=(t=n?t.toExponential(n-1):t.toExponential()).indexOf("e"))<0)return null;var e,r=t.slice(0,e);return[r.length>1?r[0]+r.slice(2):r,+t.slice(e+1)]}function Le(t){return(t=Re(Math.abs(t)))?t[1]:NaN}function qe(t,n){var e=Re(t,n);if(!e)return t+"";var r=e[0],i=e[1];return i<0?"0."+new Array(-i).join("0")+r:r.length>i+1?r.slice(0,i+1)+"."+r.slice(i+1):r+new Array(i-r.length+2).join("0")}function De(t){return new Ue(t)}function Ue(t){if(!(n=Bh.exec(t)))throw new Error("invalid format: "+t);var n,e=n[1]||" ",r=n[2]||">",i=n[3]||"-",o=n[4]||"",u=!!n[5],a=n[6]&&+n[6],c=!!n[7],s=n[8]&&+n[8].slice(1),f=n[9]||"";"n"===f?(c=!0,f="g"):Yh[f]||(f=""),(u||"0"===e&&"="===r)&&(u=!0,e="0",r="="),this.fill=e,this.align=r,this.sign=i,this.symbol=o,this.zero=u,this.width=a,this.comma=c,this.precision=s,this.type=f}function Oe(t){return t}function Fe(t){function n(t){function n(t){var n,r,u,f=g,x=_;if("c"===v)x=y(t)+x,t="";else{var b=(t=+t)<0;if(t=y(Math.abs(t),d),b&&0==+t&&(b=!1),f=(b?"("===s?s:"-":"-"===s||"("===s?"":s)+f,x=("s"===v?jh[8+Oh/3]:"")+x+(b&&"("===s?")":""),m)for(n=-1,r=t.length;++n(u=t.charCodeAt(n))||u>57){x=(46===u?i+t.slice(n+1):t.slice(n))+x,t=t.slice(0,n);break}}p&&!l&&(t=e(t,1/0));var w=f.length+t.length+x.length,M=w>1)+f+t+x+M.slice(w);break;default:t=M+f+t+x}return o(t)}var a=(t=De(t)).fill,c=t.align,s=t.sign,f=t.symbol,l=t.zero,h=t.width,p=t.comma,d=t.precision,v=t.type,g="$"===f?r[0]:"#"===f&&/[boxX]/.test(v)?"0"+v.toLowerCase():"",_="$"===f?r[1]:/[%p]/.test(v)?u:"",y=Yh[v],m=!v||/[defgprs%]/.test(v);return d=null==d?v?6:12:/[gprs]/.test(v)?Math.max(1,Math.min(21,d)):Math.max(0,Math.min(20,d)),n.toString=function(){return t+""},n}var e=t.grouping&&t.thousands?function(t,n){return function(e,r){for(var i=e.length,o=[],u=0,a=t[0],c=0;i>0&&a>0&&(c+a+1>r&&(a=Math.max(1,r-c)),o.push(e.substring(i-=a,i+a)),!((c+=a+1)>r));)a=t[u=(u+1)%t.length];return o.reverse().join(n)}}(t.grouping,t.thousands):Oe,r=t.currency,i=t.decimal,o=t.numerals?function(t){return function(n){return n.replace(/[0-9]/g,function(n){return t[+n]})}}(t.numerals):Oe,u=t.percent||"%";return{format:n,formatPrefix:function(t,e){var r=n((t=De(t),t.type="f",t)),i=3*Math.max(-8,Math.min(8,Math.floor(Le(e)/3))),o=Math.pow(10,-i),u=jh[8+i/3];return function(t){return r(o*t)+u}}}}function Ie(n){return Hh=Fe(n),t.format=Hh.format,t.formatPrefix=Hh.formatPrefix,Hh}function Ye(t){return Math.max(0,-Le(Math.abs(t)))}function Be(t,n){return Math.max(0,3*Math.max(-8,Math.min(8,Math.floor(Le(n)/3)))-Le(Math.abs(t)))}function He(t,n){return t=Math.abs(t),n=Math.abs(n)-t,Math.max(0,Le(n)-Le(t))+1}function je(){return new Xe}function Xe(){this.reset()}function Ve(t,n,e){var r=t.s=n+e,i=r-n,o=r-i;t.t=n-o+(e-i)}function $e(t){return t>1?0:t<-1?Np:Math.acos(t)}function We(t){return t>1?kp:t<-1?-kp:Math.asin(t)}function Ze(t){return(t=Fp(t/2))*t}function Ge(){}function Qe(t,n){t&&jp.hasOwnProperty(t.type)&&jp[t.type](t,n)}function Je(t,n,e){var r,i=-1,o=t.length-e;for(n.lineStart();++i=0?1:-1,i=r*e,o=Lp(n),u=Fp(n),a=Zh*u,c=Wh*o+a*Lp(i),s=a*r*Fp(i);Xp.add(Rp(s,c)),$h=t,Wh=o,Zh=u}function or(t){return[Rp(t[1],t[0]),We(t[2])]}function ur(t){var n=t[0],e=t[1],r=Lp(e);return[r*Lp(n),r*Fp(n),Fp(e)]}function ar(t,n){return t[0]*n[0]+t[1]*n[1]+t[2]*n[2]}function cr(t,n){return[t[1]*n[2]-t[2]*n[1],t[2]*n[0]-t[0]*n[2],t[0]*n[1]-t[1]*n[0]]}function sr(t,n){t[0]+=n[0],t[1]+=n[1],t[2]+=n[2]}function fr(t,n){return[t[0]*n,t[1]*n,t[2]*n]}function lr(t){var n=Yp(t[0]*t[0]+t[1]*t[1]+t[2]*t[2]);t[0]/=n,t[1]/=n,t[2]/=n}function hr(t,n){ip.push(op=[Gh=t,Jh=t]),nKh&&(Kh=n)}function pr(t,n){var e=ur([t*Cp,n*Cp]);if(rp){var r=cr(rp,e),i=cr([r[1],-r[0],0],r);lr(i),i=or(i);var o,u=t-tp,a=u>0?1:-1,c=i[0]*Ap*a,s=zp(u)>180;s^(a*tpKh&&(Kh=o):(c=(c+360)%360-180,s^(a*tpKh&&(Kh=n))),s?tmr(Gh,Jh)&&(Jh=t):mr(t,Jh)>mr(Gh,Jh)&&(Gh=t):Jh>=Gh?(tJh&&(Jh=t)):t>tp?mr(Gh,t)>mr(Gh,Jh)&&(Jh=t):mr(t,Jh)>mr(Gh,Jh)&&(Gh=t)}else ip.push(op=[Gh=t,Jh=t]);nKh&&(Kh=n),rp=e,tp=t}function dr(){Zp.point=pr}function vr(){op[0]=Gh,op[1]=Jh,Zp.point=hr,rp=null}function gr(t,n){if(rp){var e=t-tp;Wp.add(zp(e)>180?e+(e>0?360:-360):e)}else np=t,ep=n;$p.point(t,n),pr(t,n)}function _r(){$p.lineStart()}function yr(){gr(np,ep),$p.lineEnd(),zp(Wp)>Mp&&(Gh=-(Jh=180)),op[0]=Gh,op[1]=Jh,rp=null}function mr(t,n){return(n-=t)<0?n+360:n}function xr(t,n){return t[0]-n[0]}function br(t,n){return t[0]<=t[1]?t[0]<=n&&n<=t[1]:nNp?t-Ep:t<-Np?t+Ep:t,n]}function qr(t,n,e){return(t%=Ep)?n||e?Rr(Ur(t),Or(n,e)):Ur(t):n||e?Or(n,e):Lr}function Dr(t){return function(n,e){return n+=t,[n>Np?n-Ep:n<-Np?n+Ep:n,e]}}function Ur(t){var n=Dr(t);return n.invert=Dr(-t),n}function Or(t,n){function e(t,n){var e=Lp(n),a=Lp(t)*e,c=Fp(t)*e,s=Fp(n),f=s*r+a*i;return[Rp(c*o-f*u,a*r-s*i),We(f*o+c*u)]}var r=Lp(t),i=Fp(t),o=Lp(n),u=Fp(n);return e.invert=function(t,n){var e=Lp(n),a=Lp(t)*e,c=Fp(t)*e,s=Fp(n),f=s*o-c*u;return[Rp(c*o+s*u,a*r+f*i),We(f*r-a*i)]},e}function Fr(t){function n(n){return n=t(n[0]*Cp,n[1]*Cp),n[0]*=Ap,n[1]*=Ap,n}return t=qr(t[0]*Cp,t[1]*Cp,t.length>2?t[2]*Cp:0),n.invert=function(n){return n=t.invert(n[0]*Cp,n[1]*Cp),n[0]*=Ap,n[1]*=Ap,n},n}function Ir(t,n,e,r,i,o){if(e){var u=Lp(n),a=Fp(n),c=r*e;null==i?(i=n+r*Ep,o=n-c/2):(i=Yr(u,i),o=Yr(u,o),(r>0?io)&&(i+=r*Ep));for(var s,f=i;r>0?f>o:f1&&n.push(n.pop().concat(n.shift()))},result:function(){var e=n;return n=[],t=null,e}}}function Hr(t,n){return zp(t[0]-n[0])=0;--o)i.point((f=s[o])[0],f[1]);else r(h.x,h.p.x,-1,i);h=h.p}s=(h=h.o).z,p=!p}while(!h.v);i.lineEnd()}}}function Vr(t){if(n=t.length){for(var n,e,r=0,i=t[0];++r=0?1:-1,T=M*w,N=T>Np,k=d*x;if(cd.add(Rp(k*M*Fp(T),v*b+k*Lp(T))),o+=N?w+M*Ep:w,N^h>=e^y>=e){var S=cr(ur(l),ur(_));lr(S);var E=cr(i,S);lr(E);var A=(N^w>=0?-1:1)*We(E[2]);(r>A||r===A&&(S[0]||S[1]))&&(u+=N^w>=0?1:-1)}}return(o<-Mp||o0){for(m||(i.polygonStart(),m=!0),i.lineStart(),t=0;t1&&2&o&&u.push(u.pop().concat(u.shift())),p.push(u.filter(Zr))}var h,p,d,v=n(i),_=Br(),y=n(_),m=!1,x={point:o,lineStart:a,lineEnd:c,polygonStart:function(){x.point=s,x.lineStart=f,x.lineEnd=l,p=[],h=[]},polygonEnd:function(){x.point=o,x.lineStart=a,x.lineEnd=c,p=g(p);var t=$r(h,r);p.length?(m||(i.polygonStart(),m=!0),Xr(p,Gr,t,e,i)):t&&(m||(i.polygonStart(),m=!0),i.lineStart(),e(null,null,1,i),i.lineEnd()),m&&(i.polygonEnd(),m=!1),p=h=null},sphere:function(){i.polygonStart(),i.lineStart(),e(null,null,1,i),i.lineEnd(),i.polygonEnd()}};return x}}function Zr(t){return t.length>1}function Gr(t,n){return((t=t.x)[0]<0?t[1]-kp-Mp:kp-t[1])-((n=n.x)[0]<0?n[1]-kp-Mp:kp-n[1])}function Qr(t){function n(t,n){return Lp(t)*Lp(n)>i}function e(t,n,e){var r=[1,0,0],o=cr(ur(t),ur(n)),u=ar(o,o),a=o[0],c=u-a*a;if(!c)return!e&&t;var s=i*u/c,f=-i*a/c,l=cr(r,o),h=fr(r,s);sr(h,fr(o,f));var p=l,d=ar(h,p),v=ar(p,p),g=d*d-v*(ar(h,h)-1);if(!(g<0)){var _=Yp(g),y=fr(p,(-d-_)/v);if(sr(y,h),y=or(y),!e)return y;var m,x=t[0],b=n[0],w=t[1],M=n[1];b0^y[1]<(zp(y[0]-x)Np^(x<=y[0]&&y[0]<=b)){var k=fr(p,(-d+_)/v);return sr(k,h),[y,or(k)]}}}function r(n,e){var r=u?t:Np-t,i=0;return n<-r?i|=1:n>r&&(i|=2),e<-r?i|=4:e>r&&(i|=8),i}var i=Lp(t),o=6*Cp,u=i>0,a=zp(i)>Mp;return Wr(n,function(t){var i,o,c,s,f;return{lineStart:function(){s=c=!1,f=1},point:function(l,h){var p,d=[l,h],v=n(l,h),g=u?v?0:r(l,h):v?r(l+(l<0?Np:-Np),h):0;if(!i&&(s=c=v)&&t.lineStart(),v!==c&&(!(p=e(i,d))||Hr(i,p)||Hr(d,p))&&(d[0]+=Mp,d[1]+=Mp,v=n(d[0],d[1])),v!==c)f=0,v?(t.lineStart(),p=e(d,i),t.point(p[0],p[1])):(p=e(i,d),t.point(p[0],p[1]),t.lineEnd()),i=p;else if(a&&i&&u^v){var _;g&o||!(_=e(d,i,!0))||(f=0,u?(t.lineStart(),t.point(_[0][0],_[0][1]),t.point(_[1][0],_[1][1]),t.lineEnd()):(t.point(_[1][0],_[1][1]),t.lineEnd(),t.lineStart(),t.point(_[0][0],_[0][1])))}!v||i&&Hr(i,d)||t.point(d[0],d[1]),i=d,c=v,o=g},lineEnd:function(){c&&t.lineEnd(),i=null},clean:function(){return f|(s&&c)<<1}}},function(n,e,r,i){Ir(i,t,o,r,n,e)},u?[0,-t]:[-Np,t-Np])}function Jr(t,n,e,r){function i(i,o){return t<=i&&i<=e&&n<=o&&o<=r}function o(i,o,a,s){var f=0,l=0;if(null==i||(f=u(i,a))!==(l=u(o,a))||c(i,o)<0^a>0)do{s.point(0===f||3===f?t:e,f>1?r:n)}while((f=(f+a+4)%4)!==l);else s.point(o[0],o[1])}function u(r,i){return zp(r[0]-t)0?0:3:zp(r[0]-e)0?2:1:zp(r[1]-n)0?1:0:i>0?3:2}function a(t,n){return c(t.x,n.x)}function c(t,n){var e=u(t,1),r=u(n,1);return e!==r?e-r:0===e?n[1]-t[1]:1===e?t[0]-n[0]:2===e?t[1]-n[1]:n[0]-t[0]}return function(u){function c(t,n){i(t,n)&&w.point(t,n)}function s(o,u){var a=i(o,u);if(l&&h.push([o,u]),x)p=o,d=u,v=a,x=!1,a&&(w.lineStart(),w.point(o,u));else if(a&&m)w.point(o,u);else{var c=[_=Math.max(ld,Math.min(fd,_)),y=Math.max(ld,Math.min(fd,y))],s=[o=Math.max(ld,Math.min(fd,o)),u=Math.max(ld,Math.min(fd,u))];!function(t,n,e,r,i,o){var u,a=t[0],c=t[1],s=0,f=1,l=n[0]-a,h=n[1]-c;if(u=e-a,l||!(u>0)){if(u/=l,l<0){if(u0){if(u>f)return;u>s&&(s=u)}if(u=i-a,l||!(u<0)){if(u/=l,l<0){if(u>f)return;u>s&&(s=u)}else if(l>0){if(u0)){if(u/=h,h<0){if(u0){if(u>f)return;u>s&&(s=u)}if(u=o-c,h||!(u<0)){if(u/=h,h<0){if(u>f)return;u>s&&(s=u)}else if(h>0){if(u0&&(t[0]=a+s*l,t[1]=c+s*h),f<1&&(n[0]=a+f*l,n[1]=c+f*h),!0}}}}}(c,s,t,n,e,r)?a&&(w.lineStart(),w.point(o,u),b=!1):(m||(w.lineStart(),w.point(c[0],c[1])),w.point(s[0],s[1]),a||w.lineEnd(),b=!1)}_=o,y=u,m=a}var f,l,h,p,d,v,_,y,m,x,b,w=u,M=Br(),T={point:c,lineStart:function(){T.point=s,l&&l.push(h=[]),x=!0,m=!1,_=y=NaN},lineEnd:function(){f&&(s(p,d),v&&m&&M.rejoin(),f.push(M.result())),T.point=c,m&&w.lineEnd()},polygonStart:function(){w=M,f=[],l=[],b=!0},polygonEnd:function(){var n=function(){for(var n=0,e=0,i=l.length;er&&(h-o)*(r-u)>(p-u)*(t-o)&&++n:p<=r&&(h-o)*(r-u)<(p-u)*(t-o)&&--n;return n}(),e=b&&n,i=(f=g(f)).length;(e||i)&&(u.polygonStart(),e&&(u.lineStart(),o(null,null,1,u),u.lineEnd()),i&&Xr(f,a,n,o,u),u.polygonEnd()),w=u,f=l=h=null}};return T}}function Kr(){pd.point=pd.lineEnd=Ge}function ti(t,n){Qp=t*=Cp,Jp=Fp(n*=Cp),Kp=Lp(n),pd.point=ni}function ni(t,n){t*=Cp;var e=Fp(n*=Cp),r=Lp(n),i=zp(t-Qp),o=Lp(i),u=r*Fp(i),a=Kp*e-Jp*r*o,c=Jp*e+Kp*r*o;hd.add(Rp(Yp(u*u+a*a),c)),Qp=t,Jp=e,Kp=r}function ei(t){return hd.reset(),tr(t,pd),+hd}function ri(t,n){return dd[0]=t,dd[1]=n,ei(vd)}function ii(t,n){return!(!t||!_d.hasOwnProperty(t.type))&&_d[t.type](t,n)}function oi(t,n){return 0===ri(t,n)}function ui(t,n){var e=ri(t[0],t[1]);return ri(t[0],n)+ri(n,t[1])<=e+Mp}function ai(t,n){return!!$r(t.map(ci),si(n))}function ci(t){return(t=t.map(si)).pop(),t}function si(t){return[t[0]*Cp,t[1]*Cp]}function fi(t,n,e){var r=f(t,n-Mp,e).concat(n);return function(t){return r.map(function(n){return[t,n]})}}function li(t,n,e){var r=f(t,n-Mp,e).concat(n);return function(t){return r.map(function(n){return[n,t]})}}function hi(){function t(){return{type:"MultiLineString",coordinates:n()}}function n(){return f(qp(o/_)*_,i,_).map(p).concat(f(qp(s/y)*y,c,y).map(d)).concat(f(qp(r/v)*v,e,v).filter(function(t){return zp(t%_)>Mp}).map(l)).concat(f(qp(a/g)*g,u,g).filter(function(t){return zp(t%y)>Mp}).map(h))}var e,r,i,o,u,a,c,s,l,h,p,d,v=10,g=v,_=90,y=360,m=2.5;return t.lines=function(){return n().map(function(t){return{type:"LineString",coordinates:t}})},t.outline=function(){return{type:"Polygon",coordinates:[p(o).concat(d(c).slice(1),p(i).reverse().slice(1),d(s).reverse().slice(1))]}},t.extent=function(n){return arguments.length?t.extentMajor(n).extentMinor(n):t.extentMinor()},t.extentMajor=function(n){return arguments.length?(o=+n[0][0],i=+n[1][0],s=+n[0][1],c=+n[1][1],o>i&&(n=o,o=i,i=n),s>c&&(n=s,s=c,c=n),t.precision(m)):[[o,s],[i,c]]},t.extentMinor=function(n){return arguments.length?(r=+n[0][0],e=+n[1][0],a=+n[0][1],u=+n[1][1],r>e&&(n=r,r=e,e=n),a>u&&(n=a,a=u,u=n),t.precision(m)):[[r,a],[e,u]]},t.step=function(n){return arguments.length?t.stepMajor(n).stepMinor(n):t.stepMinor()},t.stepMajor=function(n){return arguments.length?(_=+n[0],y=+n[1],t):[_,y]},t.stepMinor=function(n){return arguments.length?(v=+n[0],g=+n[1],t):[v,g]},t.precision=function(n){return arguments.length?(m=+n,l=fi(a,u,90),h=li(r,e,m),p=fi(s,c,90),d=li(o,i,m),t):m},t.extentMajor([[-180,-90+Mp],[180,90-Mp]]).extentMinor([[-180,-80-Mp],[180,80+Mp]])}function pi(t){return t}function di(){xd.point=vi}function vi(t,n){xd.point=gi,td=ed=t,nd=rd=n}function gi(t,n){md.add(rd*t-ed*n),ed=t,rd=n}function _i(){gi(td,nd)}function yi(t,n){kd+=t,Sd+=n,++Ed}function mi(){qd.point=xi}function xi(t,n){qd.point=bi,yi(ud=t,ad=n)}function bi(t,n){var e=t-ud,r=n-ad,i=Yp(e*e+r*r);Ad+=i*(ud+t)/2,Cd+=i*(ad+n)/2,zd+=i,yi(ud=t,ad=n)}function wi(){qd.point=yi}function Mi(){qd.point=Ni}function Ti(){ki(id,od)}function Ni(t,n){qd.point=ki,yi(id=ud=t,od=ad=n)}function ki(t,n){var e=t-ud,r=n-ad,i=Yp(e*e+r*r);Ad+=i*(ud+t)/2,Cd+=i*(ad+n)/2,zd+=i,Pd+=(i=ad*t-ud*n)*(ud+t),Rd+=i*(ad+n),Ld+=3*i,yi(ud=t,ad=n)}function Si(t){this._context=t}function Ei(t,n){Bd.point=Ai,Ud=Fd=t,Od=Id=n}function Ai(t,n){Fd-=t,Id-=n,Yd.add(Yp(Fd*Fd+Id*Id)),Fd=t,Id=n}function Ci(){this._string=[]}function zi(t){return"m0,"+t+"a"+t+","+t+" 0 1,1 0,"+-2*t+"a"+t+","+t+" 0 1,1 0,"+2*t+"z"}function Pi(t){return function(n){var e=new Ri;for(var r in t)e[r]=t[r];return e.stream=n,e}}function Ri(){}function Li(t,n,e){var r=t.clipExtent&&t.clipExtent();return t.scale(150).translate([0,0]),null!=r&&t.clipExtent(null),tr(e,t.stream(Nd)),n(Nd.result()),null!=r&&t.clipExtent(r),t}function qi(t,n,e){return Li(t,function(e){var r=n[1][0]-n[0][0],i=n[1][1]-n[0][1],o=Math.min(r/(e[1][0]-e[0][0]),i/(e[1][1]-e[0][1])),u=+n[0][0]+(r-o*(e[1][0]+e[0][0]))/2,a=+n[0][1]+(i-o*(e[1][1]+e[0][1]))/2;t.scale(150*o).translate([u,a])},e)}function Di(t,n,e){return qi(t,[[0,0],n],e)}function Ui(t,n,e){return Li(t,function(e){var r=+n,i=r/(e[1][0]-e[0][0]),o=(r-i*(e[1][0]+e[0][0]))/2,u=-i*e[0][1];t.scale(150*i).translate([o,u])},e)}function Oi(t,n,e){return Li(t,function(e){var r=+n,i=r/(e[1][1]-e[0][1]),o=-i*e[0][0],u=(r-i*(e[1][1]+e[0][1]))/2;t.scale(150*i).translate([o,u])},e)}function Fi(t,n){return+n?function(t,n){function e(r,i,o,u,a,c,s,f,l,h,p,d,v,g){var _=s-r,y=f-i,m=_*_+y*y;if(m>4*n&&v--){var x=u+h,b=a+p,w=c+d,M=Yp(x*x+b*b+w*w),T=We(w/=M),N=zp(zp(w)-1)n||zp((_*A+y*C)/m-.5)>.3||u*h+a*p+c*d2?t[2]%360*Cp:0,r()):[x*Ap,b*Ap,w*Ap]},n.precision=function(t){return arguments.length?(E=Fi(e,S=t*t),i()):Yp(S)},n.fitExtent=function(t,e){return qi(n,t,e)},n.fitSize=function(t,e){return Di(n,t,e)},n.fitWidth=function(t,e){return Ui(n,t,e)},n.fitHeight=function(t,e){return Oi(n,t,e)},function(){return o=t.apply(this,arguments),n.invert=o.invert&&function(t){return(t=s.invert((t[0]-u)/v,(a-t[1])/v))&&[t[0]*Ap,t[1]*Ap]},r()}}function Bi(t){var n=0,e=Np/3,r=Yi(t),i=r(n,e);return i.parallels=function(t){return arguments.length?r(n=t[0]*Cp,e=t[1]*Cp):[n*Ap,e*Ap]},i}function Hi(t,n){function e(t,n){var e=Yp(o-2*i*Fp(n))/i;return[e*Fp(t*=i),u-e*Lp(t)]}var r=Fp(t),i=(r+Fp(n))/2;if(zp(i)0?n<-kp+Mp&&(n=-kp+Mp):n>kp-Mp&&(n=kp-Mp);var e=o/Op(Gi(n),i);return[e*Fp(i*t),o-e*Lp(i*t)]}var r=Lp(t),i=t===n?Fp(t):Up(r/Lp(n))/Up(Gi(n)/Gi(t)),o=r*Op(Gi(t),i)/i;return i?(e.invert=function(t,n){var e=o-n,r=Ip(i)*Yp(t*t+e*e);return[Rp(t,zp(e))/i*Ip(e),2*Pp(Op(o/r,1/i))-kp]},e):Wi}function Ji(t,n){return[t,n]}function Ki(t,n){function e(t,n){var e=o-n,r=i*t;return[e*Fp(r),o-e*Lp(r)]}var r=Lp(t),i=t===n?Fp(t):(r-Lp(n))/(n-t),o=r/i+t;return zp(i)=0;)n+=e[r].value;else n=1;t.value=n}function fo(t,n){var e,r,i,o,u,a=new vo(t),c=+t.value&&(a.value=t.value),s=[a];for(null==n&&(n=lo);e=s.pop();)if(c&&(e.value=+e.data.value),(i=n(e.data))&&(u=i.length))for(e.children=new Array(u),o=u-1;o>=0;--o)s.push(r=e.children[o]=new vo(i[o])),r.parent=e,r.depth=e.depth+1;return a.eachBefore(po)}function lo(t){return t.children}function ho(t){t.data=t.data.data}function po(t){var n=0;do{t.height=n}while((t=t.parent)&&t.height<++n)}function vo(t){this.data=t,this.depth=this.height=0,this.parent=null}function go(t){for(var n,e,r=0,i=(t=function(t){for(var n,e,r=t.length;r;)e=Math.random()*r--|0,n=t[r],t[r]=t[e],t[e]=n;return t}(Wd.call(t))).length,o=[];r0&&e*e>r*r+i*i}function mo(t,n){for(var e=0;ee*e+r*r}function To(t){var n=t._,e=t.next._,r=n.r+e.r,i=(n.x*e.r+e.x*n.r)/r,o=(n.y*e.r+e.y*n.r)/r;return i*i+o*o}function No(t){this._=t,this.next=null,this.previous=null}function ko(t){if(!(i=t.length))return 0;var n,e,r,i,o,u,a,c,s,f,l;if(n=t[0],n.x=0,n.y=0,!(i>1))return n.r;if(e=t[1],n.x=-e.r,e.x=n.r,e.y=0,!(i>2))return n.r+e.r;wo(e,n,r=t[2]),n=new No(n),e=new No(e),r=new No(r),n.next=r.previous=e,e.next=n.previous=r,r.next=e.previous=n;t:for(a=3;ah&&(h=a),g=f*f*v,(p=Math.max(h/g,g/l))>d){f-=a;break}d=p}_.push(u={value:f,dice:c1&&Vo(t[e[r-2]],t[e[r-1]],t[i])<=0;)--r;e[r++]=i}return e.slice(0,r)}function Zo(t){this._size=t,this._call=this._error=null,this._tasks=[],this._data=[],this._waiting=this._active=this._ended=this._start=0}function Go(t){if(!t._start)try{(function(t){for(;t._start=t._waiting&&t._active=0;)if((e=t._tasks[r])&&(t._tasks[r]=null,e.abort))try{e.abort()}catch(n){}t._active=NaN,Jo(t)}function Jo(t){if(!t._active&&t._call){var n=t._data;t._data=void 0,t._call(t._error,n)}}function Ko(t){if(null==t)t=1/0;else if(!((t=+t)>=1))throw new Error("invalid concurrency");return new Zo(t)}function tu(){return Math.random()}function nu(t,n){function e(t){var n,e=s.status;if(!e&&function(t){var n=t.responseType;return n&&"text"!==n?t.response:t.responseText}(s)||e>=200&&e<300||304===e){if(o)try{n=o.call(r,s)}catch(t){return void a.call("error",r,t)}else n=s;a.call("load",r,n)}else a.call("error",r,t)}var r,i,o,u,a=N("beforesend","progress","load","error"),c=se(),s=new XMLHttpRequest,f=null,l=null,h=0;if("undefined"==typeof XDomainRequest||"withCredentials"in s||!/^(http(s)?:)?\/\//.test(t)||(s=new XDomainRequest),"onload"in s?s.onload=s.onerror=s.ontimeout=e:s.onreadystatechange=function(t){s.readyState>3&&e(t)},s.onprogress=function(t){a.call("progress",r,t)},r={header:function(t,n){return t=(t+"").toLowerCase(),arguments.length<2?c.get(t):(null==n?c.remove(t):c.set(t,n+""),r)},mimeType:function(t){return arguments.length?(i=null==t?null:t+"",r):i},responseType:function(t){return arguments.length?(u=t,r):u},timeout:function(t){return arguments.length?(h=+t,r):h},user:function(t){return arguments.length<1?f:(f=null==t?null:t+"",r)},password:function(t){return arguments.length<1?l:(l=null==t?null:t+"",r)},response:function(t){return o=t,r},get:function(t,n){return r.send("GET",t,n)},post:function(t,n){return r.send("POST",t,n)},send:function(n,e,o){return s.open(n,t,!0,f,l),null==i||c.has("accept")||c.set("accept",i+",*/*"),s.setRequestHeader&&c.each(function(t,n){s.setRequestHeader(n,t)}),null!=i&&s.overrideMimeType&&s.overrideMimeType(i),null!=u&&(s.responseType=u),h>0&&(s.timeout=h),null==o&&"function"==typeof e&&(o=e,e=null),null!=o&&1===o.length&&(o=function(t){return function(n,e){t(null==n?e:null)}}(o)),null!=o&&r.on("error",o).on("load",function(t){o(null,t)}),a.call("beforesend",r,s),s.send(null==e?null:e),r},abort:function(){return s.abort(),r},on:function(){var t=a.on.apply(a,arguments);return t===a?r:t}},null!=n){if("function"!=typeof n)throw new Error("invalid callback: "+n);return r.get(n)}return r}function eu(t,n){return function(e,r){var i=nu(e).mimeType(t).response(n);if(null!=r){if("function"!=typeof r)throw new Error("invalid callback: "+r);return i.get(r)}return i}}function ru(t,n){return function(e,r,i){arguments.length<3&&(i=r,r=null);var o=nu(e).mimeType(t);return o.row=function(t){return arguments.length?o.response(function(t,n){return function(e){return t(e.responseText,n)}}(n,r=t)):r},o.row(r),i?o.get(i):o}}function iu(t){function n(n){var o=n+"",u=e.get(o);if(!u){if(i!==yv)return i;e.set(o,u=r.push(n))}return t[(u-1)%t.length]}var e=se(),r=[],i=yv;return t=null==t?[]:_v.call(t),n.domain=function(t){if(!arguments.length)return r.slice();r=[],e=se();for(var i,o,u=-1,a=t.length;++u2?lu:fu,o=u=null,r}function r(n){return(o||(o=i(a,c,f?function(t){return function(n,e){var r=t(n=+n,e=+e);return function(t){return t<=n?0:t>=e?1:r(t)}}}(t):t,s)))(+n)}var i,o,u,a=mv,c=mv,s=fn,f=!1;return r.invert=function(t){return(u||(u=i(c,a,su,f?function(t){return function(n,e){var r=t(n=+n,e=+e);return function(t){return t<=0?n:t>=1?e:r(t)}}}(n):n)))(+t)},r.domain=function(t){return arguments.length?(a=gv.call(t,cu),e()):a.slice()},r.range=function(t){return arguments.length?(c=_v.call(t),e()):c.slice()},r.rangeRound=function(t){return c=_v.call(t),s=ln,e()},r.clamp=function(t){return arguments.length?(f=!!t,e()):f},r.interpolate=function(t){return arguments.length?(s=t,e()):s},e()}function du(n){var e=n.domain;return n.ticks=function(t){var n=e();return l(n[0],n[n.length-1],null==t?10:t)},n.tickFormat=function(n,r){return function(n,e,r){var i,o=n[0],u=n[n.length-1],a=p(o,u,null==e?10:e);switch((r=De(null==r?",f":r)).type){case"s":var c=Math.max(Math.abs(o),Math.abs(u));return null!=r.precision||isNaN(i=Be(a,c))||(r.precision=i),t.formatPrefix(r,c);case"":case"e":case"g":case"p":case"r":null!=r.precision||isNaN(i=He(a,Math.max(Math.abs(o),Math.abs(u))))||(r.precision=i-("e"===r.type));break;case"f":case"%":null!=r.precision||isNaN(i=Ye(a))||(r.precision=i-2*("%"===r.type))}return t.format(r)}(e(),n,r)},n.nice=function(t){null==t&&(t=10);var r,i=e(),o=0,u=i.length-1,a=i[o],c=i[u];return c0?r=h(a=Math.floor(a/r)*r,c=Math.ceil(c/r)*r,t):r<0&&(r=h(a=Math.ceil(a*r)/r,c=Math.floor(c*r)/r,t)),r>0?(i[o]=Math.floor(a/r)*r,i[u]=Math.ceil(c/r)*r,e(i)):r<0&&(i[o]=Math.ceil(a*r)/r,i[u]=Math.floor(c*r)/r,e(i)),n},n}function vu(){var t=pu(su,an);return t.copy=function(){return hu(t,vu())},du(t)}function gu(){function t(t){return+t}var n=[0,1];return t.invert=t,t.domain=t.range=function(e){return arguments.length?(n=gv.call(e,cu),t):n.slice()},t.copy=function(){return gu().domain(n)},du(t)}function _u(t,n){var e,r=0,i=(t=t.slice()).length-1,o=t[r],u=t[i];return u0){for(;pc)break;g.push(h)}}else for(;p=1;--f)if(!((h=s*f)c)break;g.push(h)}}else g=l(p,d,Math.min(d-p,v)).map(u);return n?g.reverse():g},e.tickFormat=function(n,r){if(null==r&&(r=10===i?".0e":","),"function"!=typeof r&&(r=t.format(r)),n===1/0)return r;null==n&&(n=10);var a=Math.max(1,i*n/e.ticks().length);return function(t){var n=t/u(Math.round(o(t)));return n*i0?o[n-1]:r[0],n=i?[o[i-1],r]:[o[n-1],o[n]]},t.copy=function(){return Eu().domain([e,r]).range(u)},du(t)}function Au(){function t(t){if(t<=t)return e[Os(n,t,0,r)]}var n=[.5],e=[0,1],r=1;return t.domain=function(i){return arguments.length?(n=_v.call(i),r=Math.min(n.length,e.length-1),t):n.slice()},t.range=function(i){return arguments.length?(e=_v.call(i),r=Math.min(n.length,e.length-1),t):e.slice()},t.invertExtent=function(t){var r=e.indexOf(t);return[n[r-1],n[r]]},t.copy=function(){return Au().domain(n).range(e)},t}function Cu(t,n,e,r){function i(n){return t(n=new Date(+n)),n}return i.floor=i,i.ceil=function(e){return t(e=new Date(e-1)),n(e,1),t(e),e},i.round=function(t){var n=i(t),e=i.ceil(t);return t-n0))return a;do{a.push(u=new Date(+e)),n(e,o),t(e)}while(u=n)for(;t(n),!e(n);)n.setTime(n-1)},function(t,r){if(t>=t)if(r<0)for(;++r<=0;)for(;n(t,-1),!e(t););else for(;--r>=0;)for(;n(t,1),!e(t););})},e&&(i.count=function(n,r){return xv.setTime(+n),bv.setTime(+r),t(xv),t(bv),Math.floor(e(xv,bv))},i.every=function(t){return t=Math.floor(t),isFinite(t)&&t>0?t>1?i.filter(r?function(n){return r(n)%t==0}:function(n){return i.count(0,n)%t==0}):i:null}),i}function zu(t){return Cu(function(n){n.setDate(n.getDate()-(n.getDay()+7-t)%7),n.setHours(0,0,0,0)},function(t,n){t.setDate(t.getDate()+7*n)},function(t,n){return(n-t-(n.getTimezoneOffset()-t.getTimezoneOffset())*Tv)/Nv})}function Pu(t){return Cu(function(n){n.setUTCDate(n.getUTCDate()-(n.getUTCDay()+7-t)%7),n.setUTCHours(0,0,0,0)},function(t,n){t.setUTCDate(t.getUTCDate()+7*n)},function(t,n){return(n-t)/Nv})}function Ru(t){if(0<=t.y&&t.y<100){var n=new Date(-1,t.m,t.d,t.H,t.M,t.S,t.L);return n.setFullYear(t.y),n}return new Date(t.y,t.m,t.d,t.H,t.M,t.S,t.L)}function Lu(t){if(0<=t.y&&t.y<100){var n=new Date(Date.UTC(-1,t.m,t.d,t.H,t.M,t.S,t.L));return n.setUTCFullYear(t.y),n}return new Date(Date.UTC(t.y,t.m,t.d,t.H,t.M,t.S,t.L))}function qu(t){return{y:t,m:0,d:1,H:0,M:0,S:0,L:0}}function Du(t){function n(t,n){return function(e){var r,i,o,u=[],a=-1,c=0,s=t.length;for(e instanceof Date||(e=new Date(+e));++a53)return null;"w"in u||(u.w=1),"Z"in u?(i=(o=(i=Lu(qu(u.y))).getUTCDay())>4||0===o?og.ceil(i):og(i),i=eg.offset(i,7*(u.V-1)),u.y=i.getUTCFullYear(),u.m=i.getUTCMonth(),u.d=i.getUTCDate()+(u.w+6)%7):(i=(o=(i=n(qu(u.y))).getDay())>4||0===o?qv.ceil(i):qv(i),i=Pv.offset(i,7*(u.V-1)),u.y=i.getFullYear(),u.m=i.getMonth(),u.d=i.getDate()+(u.w+6)%7)}else("W"in u||"U"in u)&&("w"in u||(u.w="u"in u?u.u%7:"W"in u?1:0),o="Z"in u?Lu(qu(u.y)).getUTCDay():n(qu(u.y)).getDay(),u.m=0,u.d="W"in u?(u.w+6)%7+7*u.W-(o+5)%7:u.w+7*u.U-(o+6)%7);return"Z"in u?(u.H+=u.Z/100|0,u.M+=u.Z%100,Lu(u)):n(u)}}function r(t,n,e,r){for(var i,o,u=0,a=n.length,c=e.length;u=c)return-1;if(37===(i=n.charCodeAt(u++))){if(i=n.charAt(u++),!(o=T[i in Mg?n.charAt(u++):i])||(r=o(t,e,r))<0)return-1}else if(i!=e.charCodeAt(r++))return-1}return r}var i=t.dateTime,o=t.date,u=t.time,a=t.periods,c=t.days,s=t.shortDays,f=t.months,l=t.shortMonths,h=Fu(a),p=Iu(a),d=Fu(c),v=Iu(c),g=Fu(s),_=Iu(s),y=Fu(f),m=Iu(f),x=Fu(l),b=Iu(l),w={a:function(t){return s[t.getDay()]},A:function(t){return c[t.getDay()]},b:function(t){return l[t.getMonth()]},B:function(t){return f[t.getMonth()]},c:null,d:ua,e:ua,f:la,H:aa,I:ca,j:sa,L:fa,m:ha,M:pa,p:function(t){return a[+(t.getHours()>=12)]},Q:Ya,s:Ba,S:da,u:va,U:ga,V:_a,w:ya,W:ma,x:null,X:null,y:xa,Y:ba,Z:wa,"%":Ia},M={a:function(t){return s[t.getUTCDay()]},A:function(t){return c[t.getUTCDay()]},b:function(t){return l[t.getUTCMonth()]},B:function(t){return f[t.getUTCMonth()]},c:null,d:Ma,e:Ma,f:Ea,H:Ta,I:Na,j:ka,L:Sa,m:Aa,M:Ca,p:function(t){return a[+(t.getUTCHours()>=12)]},Q:Ya,s:Ba,S:za,u:Pa,U:Ra,V:La,w:qa,W:Da,x:null,X:null,y:Ua,Y:Oa,Z:Fa,"%":Ia},T={a:function(t,n,e){var r=g.exec(n.slice(e));return r?(t.w=_[r[0].toLowerCase()],e+r[0].length):-1},A:function(t,n,e){var r=d.exec(n.slice(e));return r?(t.w=v[r[0].toLowerCase()],e+r[0].length):-1},b:function(t,n,e){var r=x.exec(n.slice(e));return r?(t.m=b[r[0].toLowerCase()],e+r[0].length):-1},B:function(t,n,e){var r=y.exec(n.slice(e));return r?(t.m=m[r[0].toLowerCase()],e+r[0].length):-1},c:function(t,n,e){return r(t,i,n,e)},d:Gu,e:Gu,f:ea,H:Ju,I:Ju,j:Qu,L:na,m:Zu,M:Ku,p:function(t,n,e){var r=h.exec(n.slice(e));return r?(t.p=p[r[0].toLowerCase()],e+r[0].length):-1},Q:ia,s:oa,S:ta,u:Bu,U:Hu,V:ju,w:Yu,W:Xu,x:function(t,n,e){return r(t,o,n,e)},X:function(t,n,e){return r(t,u,n,e)},y:$u,Y:Vu,Z:Wu,"%":ra};return w.x=n(o,w),w.X=n(u,w),w.c=n(i,w),M.x=n(o,M),M.X=n(u,M),M.c=n(i,M),{format:function(t){var e=n(t+="",w);return e.toString=function(){return t},e},parse:function(t){var n=e(t+="",Ru);return n.toString=function(){return t},n},utcFormat:function(t){var e=n(t+="",M);return e.toString=function(){return t},e},utcParse:function(t){var n=e(t,Lu);return n.toString=function(){return t},n}}}function Uu(t,n,e){var r=t<0?"-":"",i=(r?-t:t)+"",o=i.length;return r+(o68?1900:2e3),e+r[0].length):-1}function Wu(t,n,e){var r=/^(Z)|([+-]\d\d)(?::?(\d\d))?/.exec(n.slice(e,e+6));return r?(t.Z=r[1]?0:-(r[2]+(r[3]||"00")),e+r[0].length):-1}function Zu(t,n,e){var r=Tg.exec(n.slice(e,e+2));return r?(t.m=r[0]-1,e+r[0].length):-1}function Gu(t,n,e){var r=Tg.exec(n.slice(e,e+2));return r?(t.d=+r[0],e+r[0].length):-1}function Qu(t,n,e){var r=Tg.exec(n.slice(e,e+3));return r?(t.m=0,t.d=+r[0],e+r[0].length):-1}function Ju(t,n,e){var r=Tg.exec(n.slice(e,e+2));return r?(t.H=+r[0],e+r[0].length):-1}function Ku(t,n,e){var r=Tg.exec(n.slice(e,e+2));return r?(t.M=+r[0],e+r[0].length):-1}function ta(t,n,e){var r=Tg.exec(n.slice(e,e+2));return r?(t.S=+r[0],e+r[0].length):-1}function na(t,n,e){var r=Tg.exec(n.slice(e,e+3));return r?(t.L=+r[0],e+r[0].length):-1}function ea(t,n,e){var r=Tg.exec(n.slice(e,e+6));return r?(t.L=Math.floor(r[0]/1e3),e+r[0].length):-1}function ra(t,n,e){var r=Ng.exec(n.slice(e,e+1));return r?e+r[0].length:-1}function ia(t,n,e){var r=Tg.exec(n.slice(e));return r?(t.Q=+r[0],e+r[0].length):-1}function oa(t,n,e){var r=Tg.exec(n.slice(e));return r?(t.Q=1e3*+r[0],e+r[0].length):-1}function ua(t,n){return Uu(t.getDate(),n,2)}function aa(t,n){return Uu(t.getHours(),n,2)}function ca(t,n){return Uu(t.getHours()%12||12,n,2)}function sa(t,n){return Uu(1+Pv.count(Gv(t),t),n,3)}function fa(t,n){return Uu(t.getMilliseconds(),n,3)}function la(t,n){return fa(t,n)+"000"}function ha(t,n){return Uu(t.getMonth()+1,n,2)}function pa(t,n){return Uu(t.getMinutes(),n,2)}function da(t,n){return Uu(t.getSeconds(),n,2)}function va(t){var n=t.getDay();return 0===n?7:n}function ga(t,n){return Uu(Lv.count(Gv(t),t),n,2)}function _a(t,n){var e=t.getDay();return t=e>=4||0===e?Ov(t):Ov.ceil(t),Uu(Ov.count(Gv(t),t)+(4===Gv(t).getDay()),n,2)}function ya(t){return t.getDay()}function ma(t,n){return Uu(qv.count(Gv(t),t),n,2)}function xa(t,n){return Uu(t.getFullYear()%100,n,2)}function ba(t,n){return Uu(t.getFullYear()%1e4,n,4)}function wa(t){var n=t.getTimezoneOffset();return(n>0?"-":(n*=-1,"+"))+Uu(n/60|0,"0",2)+Uu(n%60,"0",2)}function Ma(t,n){return Uu(t.getUTCDate(),n,2)}function Ta(t,n){return Uu(t.getUTCHours(),n,2)}function Na(t,n){return Uu(t.getUTCHours()%12||12,n,2)}function ka(t,n){return Uu(1+eg.count(xg(t),t),n,3)}function Sa(t,n){return Uu(t.getUTCMilliseconds(),n,3)}function Ea(t,n){return Sa(t,n)+"000"}function Aa(t,n){return Uu(t.getUTCMonth()+1,n,2)}function Ca(t,n){return Uu(t.getUTCMinutes(),n,2)}function za(t,n){return Uu(t.getUTCSeconds(),n,2)}function Pa(t){var n=t.getUTCDay();return 0===n?7:n}function Ra(t,n){return Uu(ig.count(xg(t),t),n,2)}function La(t,n){var e=t.getUTCDay();return t=e>=4||0===e?cg(t):cg.ceil(t),Uu(cg.count(xg(t),t)+(4===xg(t).getUTCDay()),n,2)}function qa(t){return t.getUTCDay()}function Da(t,n){return Uu(og.count(xg(t),t),n,2)}function Ua(t,n){return Uu(t.getUTCFullYear()%100,n,2)}function Oa(t,n){return Uu(t.getUTCFullYear()%1e4,n,4)}function Fa(){return"+0000"}function Ia(){return"%"}function Ya(t){return+t}function Ba(t){return Math.floor(+t/1e3)}function Ha(n){return bg=Du(n),t.timeFormat=bg.format,t.timeParse=bg.parse,t.utcFormat=bg.utcFormat,t.utcParse=bg.utcParse,bg}function ja(t){return new Date(t)}function Xa(t){return t instanceof Date?+t:+new Date(+t)}function Va(t,n,r,i,o,u,a,c,s){function f(e){return(a(e)=1?i_:t<=-1?-i_:Math.asin(t)}function Ja(t){return t.innerRadius}function Ka(t){return t.outerRadius}function tc(t){return t.startAngle}function nc(t){return t.endAngle}function ec(t){return t&&t.padAngle}function rc(t,n,e,r,i,o,u){var a=t-e,c=n-r,s=(u?o:-o)/n_(a*a+c*c),f=s*c,l=-s*a,h=t+f,p=n+l,d=e+f,v=r+l,g=(h+d)/2,_=(p+v)/2,y=d-h,m=v-p,x=y*y+m*m,b=i-o,w=h*v-d*p,M=(m<0?-1:1)*n_(Jg(0,b*b*x-w*w)),T=(w*m-y*M)/x,N=(-w*y-m*M)/x,k=(w*m+y*M)/x,S=(-w*y+m*M)/x,E=T-g,A=N-_,C=k-g,z=S-_;return E*E+A*A>C*C+z*z&&(T=k,N=S),{cx:T,cy:N,x01:-f,y01:-l,x11:T*(i/b-1),y11:N*(i/b-1)}}function ic(t){this._context=t}function oc(t){return new ic(t)}function uc(t){return t[0]}function ac(t){return t[1]}function cc(){function t(t){var a,c,s,f=t.length,l=!1;for(null==i&&(u=o(s=ee())),a=0;a<=f;++a)!(a=f;--l)s.point(g[l],_[l]);s.lineEnd(),s.areaEnd()}v&&(g[n]=+e(h,n,t),_[n]=+i(h,n,t),s.point(r?+r(h,n,t):g[n],o?+o(h,n,t):_[n]))}if(p)return s=null,p+""||null}function n(){return cc().defined(u).curve(c).context(a)}var e=uc,r=null,i=Ga(0),o=ac,u=Ga(!0),a=null,c=oc,s=null;return t.x=function(n){return arguments.length?(e="function"==typeof n?n:Ga(+n),r=null,t):e},t.x0=function(n){return arguments.length?(e="function"==typeof n?n:Ga(+n),t):e},t.x1=function(n){return arguments.length?(r=null==n?null:"function"==typeof n?n:Ga(+n),t):r},t.y=function(n){return arguments.length?(i="function"==typeof n?n:Ga(+n),o=null,t):i},t.y0=function(n){return arguments.length?(i="function"==typeof n?n:Ga(+n),t):i},t.y1=function(n){return arguments.length?(o=null==n?null:"function"==typeof n?n:Ga(+n),t):o},t.lineX0=t.lineY0=function(){return n().x(e).y(i)},t.lineY1=function(){return n().x(e).y(o)},t.lineX1=function(){return n().x(r).y(i)},t.defined=function(n){return arguments.length?(u="function"==typeof n?n:Ga(!!n),t):u},t.curve=function(n){return arguments.length?(c=n,null!=a&&(s=c(a)),t):c},t.context=function(n){return arguments.length?(null==n?a=s=null:s=c(a=n),t):a},t}function fc(t,n){return nt?1:n>=t?0:NaN}function lc(t){return t}function hc(t){this._curve=t}function pc(t){function n(n){return new hc(t(n))}return n._curve=t,n}function dc(t){var n=t.curve;return t.angle=t.x,delete t.x,t.radius=t.y,delete t.y,t.curve=function(t){return arguments.length?n(pc(t)):n()._curve},t}function vc(){return dc(cc().curve(u_))}function gc(){var t=sc().curve(u_),n=t.curve,e=t.lineX0,r=t.lineX1,i=t.lineY0,o=t.lineY1;return t.angle=t.x,delete t.x,t.startAngle=t.x0,delete t.x0,t.endAngle=t.x1,delete t.x1,t.radius=t.y,delete t.y,t.innerRadius=t.y0,delete t.y0,t.outerRadius=t.y1,delete t.y1,t.lineStartAngle=function(){return dc(e())},delete t.lineX0,t.lineEndAngle=function(){return dc(r())},delete t.lineX1,t.lineInnerRadius=function(){return dc(i())},delete t.lineY0,t.lineOuterRadius=function(){return dc(o())},delete t.lineY1,t.curve=function(t){return arguments.length?n(pc(t)):n()._curve},t}function _c(t,n){return[(n=+n)*Math.cos(t-=Math.PI/2),n*Math.sin(t)]}function yc(t){return t.source}function mc(t){return t.target}function xc(t){function n(){var n,a=a_.call(arguments),c=e.apply(this,a),s=r.apply(this,a);if(u||(u=n=ee()),t(u,+i.apply(this,(a[0]=c,a)),+o.apply(this,a),+i.apply(this,(a[0]=s,a)),+o.apply(this,a)),n)return u=null,n+""||null}var e=yc,r=mc,i=uc,o=ac,u=null;return n.source=function(t){return arguments.length?(e=t,n):e},n.target=function(t){return arguments.length?(r=t,n):r},n.x=function(t){return arguments.length?(i="function"==typeof t?t:Ga(+t),n):i},n.y=function(t){return arguments.length?(o="function"==typeof t?t:Ga(+t),n):o},n.context=function(t){return arguments.length?(u=null==t?null:t,n):u},n}function bc(t,n,e,r,i){t.moveTo(n,e),t.bezierCurveTo(n=(n+r)/2,e,n,i,r,i)}function wc(t,n,e,r,i){t.moveTo(n,e),t.bezierCurveTo(n,e=(e+i)/2,r,e,r,i)}function Mc(t,n,e,r,i){var o=_c(n,e),u=_c(n,e=(e+i)/2),a=_c(r,e),c=_c(r,i);t.moveTo(o[0],o[1]),t.bezierCurveTo(u[0],u[1],a[0],a[1],c[0],c[1])}function Tc(){}function Nc(t,n,e){t._context.bezierCurveTo((2*t._x0+t._x1)/3,(2*t._y0+t._y1)/3,(t._x0+2*t._x1)/3,(t._y0+2*t._y1)/3,(t._x0+4*t._x1+n)/6,(t._y0+4*t._y1+e)/6)}function kc(t){this._context=t}function Sc(t){this._context=t}function Ec(t){this._context=t}function Ac(t,n){this._basis=new kc(t),this._beta=n}function Cc(t,n,e){t._context.bezierCurveTo(t._x1+t._k*(t._x2-t._x0),t._y1+t._k*(t._y2-t._y0),t._x2+t._k*(t._x1-n),t._y2+t._k*(t._y1-e),t._x2,t._y2)}function zc(t,n){this._context=t,this._k=(1-n)/6}function Pc(t,n){this._context=t,this._k=(1-n)/6}function Rc(t,n){this._context=t,this._k=(1-n)/6}function Lc(t,n,e){var r=t._x1,i=t._y1,o=t._x2,u=t._y2;if(t._l01_a>e_){var a=2*t._l01_2a+3*t._l01_a*t._l12_a+t._l12_2a,c=3*t._l01_a*(t._l01_a+t._l12_a);r=(r*a-t._x0*t._l12_2a+t._x2*t._l01_2a)/c,i=(i*a-t._y0*t._l12_2a+t._y2*t._l01_2a)/c}if(t._l23_a>e_){var s=2*t._l23_2a+3*t._l23_a*t._l12_a+t._l12_2a,f=3*t._l23_a*(t._l23_a+t._l12_a);o=(o*s+t._x1*t._l23_2a-n*t._l12_2a)/f,u=(u*s+t._y1*t._l23_2a-e*t._l12_2a)/f}t._context.bezierCurveTo(r,i,o,u,t._x2,t._y2)}function qc(t,n){this._context=t,this._alpha=n}function Dc(t,n){this._context=t,this._alpha=n}function Uc(t,n){this._context=t,this._alpha=n}function Oc(t){this._context=t}function Fc(t){return t<0?-1:1}function Ic(t,n,e){var r=t._x1-t._x0,i=n-t._x1,o=(t._y1-t._y0)/(r||i<0&&-0),u=(e-t._y1)/(i||r<0&&-0),a=(o*i+u*r)/(r+i);return(Fc(o)+Fc(u))*Math.min(Math.abs(o),Math.abs(u),.5*Math.abs(a))||0}function Yc(t,n){var e=t._x1-t._x0;return e?(3*(t._y1-t._y0)/e-n)/2:n}function Bc(t,n,e){var r=t._x0,i=t._y0,o=t._x1,u=t._y1,a=(o-r)/3;t._context.bezierCurveTo(r+a,i+a*n,o-a,u-a*e,o,u)}function Hc(t){this._context=t}function jc(t){this._context=new Xc(t)}function Xc(t){this._context=t}function Vc(t){this._context=t}function $c(t){var n,e,r=t.length-1,i=new Array(r),o=new Array(r),u=new Array(r);for(i[0]=0,o[0]=2,u[0]=t[0]+2*t[1],n=1;n=0;--n)i[n]=(u[n]-i[n+1])/o[n];for(o[r-1]=(t[r]+i[r-1])/2,n=0;n1)for(var e,r,i,o=1,u=t[n[0]],a=u.length;o=0;)e[n]=n;return e}function Qc(t,n){return t[n]}function Jc(t){var n=t.map(Kc);return Gc(t).sort(function(t,e){return n[t]-n[e]})}function Kc(t){for(var n,e=0,r=-1,i=t.length;++r0)){if(o/=h,h<0){if(o0){if(o>l)return;o>f&&(f=o)}if(o=r-c,h||!(o<0)){if(o/=h,h<0){if(o>l)return;o>f&&(f=o)}else if(h>0){if(o0)){if(o/=p,p<0){if(o0){if(o>l)return;o>f&&(f=o)}if(o=i-s,p||!(o<0)){if(o/=p,p<0){if(o>l)return;o>f&&(f=o)}else if(p>0){if(o0||l<1)||(f>0&&(t[0]=[c+f*h,s+f*p]),l<1&&(t[1]=[c+l*h,s+l*p]),!0)}}}}}function hs(t,n,e,r,i){var o=t[1];if(o)return!0;var u,a,c=t[0],s=t.left,f=t.right,l=s[0],h=s[1],p=f[0],d=f[1],v=(l+p)/2,g=(h+d)/2;if(d===h){if(v=r)return;if(l>p){if(c){if(c[1]>=i)return}else c=[v,e];o=[v,i]}else{if(c){if(c[1]1)if(l>p){if(c){if(c[1]>=i)return}else c=[(e-a)/u,e];o=[(i-a)/u,i]}else{if(c){if(c[1]=r)return}else c=[n,u*n+a];o=[r,u*r+a]}else{if(c){if(c[0]=-I_)){var p=c*c+s*s,d=f*f+l*l,v=(l*p-s*d)/h,g=(c*d-f*p)/h,_=U_.pop()||new function(){is(this),this.x=this.y=this.arc=this.site=this.cy=null};_.arc=t,_.site=i,_.x=v+u,_.y=(_.cy=g+a)+Math.sqrt(v*v+g*g),t.circle=_;for(var y=null,m=q_._;m;)if(_.yF_)a=a.L;else{if(!((i=o-function(t,n){var e=t.N;if(e)return ws(e,n);var r=t.site;return r[1]===n?r[0]:1/0}(a,u))>F_)){r>-F_?(n=a.P,e=a):i>-F_?(n=a,e=a.N):n=e=a;break}if(!a.R){n=a;break}a=a.R}(function(t){L_[t.index]={site:t,halfedges:[]}})(t);var c=ys(t);if(R_.insert(n,c),n||e){if(n===e)return _s(n),e=ys(n.site),R_.insert(c,e),c.edge=e.edge=cs(n.site,c.site),gs(n),void gs(e);if(e){_s(n),_s(e);var s=n.site,f=s[0],l=s[1],h=t[0]-f,p=t[1]-l,d=e.site,v=d[0]-f,g=d[1]-l,_=2*(h*g-p*v),y=h*h+p*p,m=v*v+g*g,x=[(g*y-p*m)/_+f,(h*m-v*y)/_+l];fs(e.edge,s,d,x),c.edge=cs(s,t,null,x),e.edge=cs(t,d,null,x),gs(n),gs(e)}else c.edge=cs(n.site,c.site)}}function ws(t,n){var e=t.site,r=e[0],i=e[1],o=i-n;if(!o)return r;var u=t.P;if(!u)return-1/0;var a=(e=u.site)[0],c=e[1],s=c-n;if(!s)return a;var f=a-r,l=1/o-1/s,h=f/s;return l?(-h+Math.sqrt(h*h-2*l*(f*f/(-2*s)-c+s/2+i-o/2)))/l+r:(r+a)/2}function Ms(t,n,e){return(t[0]-e[0])*(n[1]-t[1])-(t[0]-n[0])*(e[1]-t[1])}function Ts(t,n){return n[1]-t[1]||n[0]-t[0]}function Ns(t,n){var e,r,i,o=t.sort(Ts).pop();for(D_=[],L_=new Array(t.length),R_=new rs,q_=new rs;;)if(i=P_,o&&(!i||o[1]F_||Math.abs(i[0][1]-i[1][1])>F_)||delete D_[o]})(u,a,c,s),function(t,n,e,r){var i,o,u,a,c,s,f,l,h,p,d,v,g=L_.length,_=!0;for(i=0;iF_||Math.abs(v-h)>F_)&&(c.splice(a,0,D_.push(ss(u,p,Math.abs(d-t)F_?[t,Math.abs(l-t)F_?[Math.abs(h-r)F_?[e,Math.abs(l-e)F_?[Math.abs(h-n)r?(r+i)/2:Math.min(0,r)||Math.max(0,i),u>o?(o+u)/2:Math.min(0,o)||Math.max(0,u))}var Us=e(n),Os=Us.right,Fs=Us.left,Is=Array.prototype,Ys=Is.slice,Bs=Is.map,Hs=Math.sqrt(50),js=Math.sqrt(10),Xs=Math.sqrt(2),Vs=Array.prototype.slice,$s=1,Ws=2,Zs=3,Gs=4,Qs=1e-6,Js={value:function(){}};k.prototype=N.prototype={constructor:k,on:function(t,n){var e,r=this._,i=function(t,n){return t.trim().split(/^|\s+/).map(function(t){var e="",r=t.indexOf(".");if(r>=0&&(e=t.slice(r+1),t=t.slice(0,r)),t&&!n.hasOwnProperty(t))throw new Error("unknown type: "+t);return{type:t,name:e}})}(t+"",r),o=-1,u=i.length;{if(!(arguments.length<2)){if(null!=n&&"function"!=typeof n)throw new Error("invalid callback: "+n);for(;++o0)for(var e,r,i=new Array(e),o=0;o=0&&(this._names.splice(n,1),this._node.setAttribute("class",this._names.join(" ")))},contains:function(t){return this._names.indexOf(t)>=0}};var af={};if(t.event=null,"undefined"!=typeof document){"onmouseenter"in document.documentElement||(af={mouseenter:"mouseover",mouseleave:"mouseout"})}var cf=[null];ut.prototype=at.prototype={constructor:ut,select:function(t){"function"!=typeof t&&(t=z(t));for(var n=this._groups,e=n.length,r=new Array(e),i=0;i=x&&(x=m+1);!(y=g[x])&&++x=0;)(r=i[o])&&(u&&u!==r.nextSibling&&u.parentNode.insertBefore(r,u),u=r);return this},sort:function(t){function n(n,e){return n&&e?t(n.__data__,e.__data__):!n-!e}t||(t=O);for(var e=this._groups,r=e.length,i=new Array(r),o=0;o1?this.each((null==n?function(t){return function(){this.style.removeProperty(t)}}:"function"==typeof n?function(t,n,e){return function(){var r=n.apply(this,arguments);null==r?this.style.removeProperty(t):this.style.setProperty(t,r,e)}}:function(t,n,e){return function(){this.style.setProperty(t,n,e)}})(t,n,null==e?"":e)):I(this.node(),t)},property:function(t,n){return arguments.length>1?this.each((null==n?function(t){return function(){delete this[t]}}:"function"==typeof n?function(t,n){return function(){var e=n.apply(this,arguments);null==e?delete this[t]:this[t]=e}}:function(t,n){return function(){this[t]=n}})(t,n)):this.node()[t]},classed:function(t,n){var e=Y(t+"");if(arguments.length<2){for(var r=B(this.node()),i=-1,o=e.length;++i=0&&(n=t.slice(e+1),t=t.slice(0,e)),{type:t,name:n}})}(t+""),u=o.length;if(!(arguments.length<2)){for(a=n?rt:et,null==e&&(e=!1),r=0;r=240?t-240:t+120,i,r),Ut(t,i,r),Ut(t<120?t+240:t-120,i,r),this.opacity)},displayable:function(){return(0<=this.s&&this.s<=1||isNaN(this.s))&&0<=this.l&&this.l<=1&&0<=this.opacity&&this.opacity<=1}}));var wf=Math.PI/180,Mf=180/Math.PI,Tf=.95047,Nf=1,kf=1.08883,Sf=4/29,Ef=6/29,Af=3*Ef*Ef,Cf=Ef*Ef*Ef;Nt(It,Ft,kt(St,{brighter:function(t){return new It(this.l+18*(null==t?1:t),this.a,this.b,this.opacity)},darker:function(t){return new It(this.l-18*(null==t?1:t),this.a,this.b,this.opacity)},rgb:function(){var t=(this.l+16)/116,n=isNaN(this.a)?t:t+this.a/500,e=isNaN(this.b)?t:t-this.b/200;return t=Nf*Bt(t),n=Tf*Bt(n),e=kf*Bt(e),new Rt(Ht(3.2404542*n-1.5371385*t-.4985314*e),Ht(-.969266*n+1.8760108*t+.041556*e),Ht(.0556434*n-.2040259*t+1.0572252*e),this.opacity)}})),Nt(Vt,Xt,kt(St,{brighter:function(t){return new Vt(this.h,this.c,this.l+18*(null==t?1:t),this.opacity)},darker:function(t){return new Vt(this.h,this.c,this.l-18*(null==t?1:t),this.opacity)},rgb:function(){return Ot(this).rgb()}}));var zf=-.29227,Pf=-.90649,Rf=1.97294,Lf=Rf*Pf,qf=1.78277*Rf,Df=1.78277*zf- -.14861*Pf;Nt(Wt,$t,kt(St,{brighter:function(t){return t=null==t?1/.7:Math.pow(1/.7,t),new Wt(this.h,this.s,this.l*t,this.opacity)},darker:function(t){return t=null==t?.7:Math.pow(.7,t),new Wt(this.h,this.s,this.l*t,this.opacity)},rgb:function(){var t=isNaN(this.h)?0:(this.h+120)*wf,n=+this.l,e=isNaN(this.s)?0:this.s*n*(1-n),r=Math.cos(t),i=Math.sin(t);return new Rt(255*(n+e*(-.14861*r+1.78277*i)),255*(n+e*(zf*r+Pf*i)),255*(n+e*(Rf*r)),this.opacity)}}));var Uf,Of,Ff,If,Yf,Bf,Hf=function t(n){function e(t,n){var e=r((t=Pt(t)).r,(n=Pt(n)).r),i=r(t.g,n.g),o=r(t.b,n.b),u=en(t.opacity,n.opacity);return function(n){return t.r=e(n),t.g=i(n),t.b=o(n),t.opacity=u(n),t+""}}var r=nn(n);return e.gamma=t,e}(1),jf=rn(Gt),Xf=rn(Qt),Vf=/[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g,$f=new RegExp(Vf.source,"g"),Wf=180/Math.PI,Zf={translateX:0,translateY:0,rotate:0,skewX:0,scaleX:1,scaleY:1},Gf=pn(function(t){return"none"===t?Zf:(Uf||(Uf=document.createElement("DIV"),Of=document.documentElement,Ff=document.defaultView),Uf.style.transform=t,t=Ff.getComputedStyle(Of.appendChild(Uf),null).getPropertyValue("transform"),Of.removeChild(Uf),t=t.slice(7,-1).split(","),hn(+t[0],+t[1],+t[2],+t[3],+t[4],+t[5]))},"px, ","px)","deg)"),Qf=pn(function(t){return null==t?Zf:(If||(If=document.createElementNS("http://www.w3.org/2000/svg","g")),If.setAttribute("transform",t),(t=If.transform.baseVal.consolidate())?(t=t.matrix,hn(t.a,t.b,t.c,t.d,t.e,t.f)):Zf)},", ",")",")"),Jf=Math.SQRT2,Kf=2,tl=4,nl=1e-12,el=gn(tn),rl=gn(en),il=_n(tn),ol=_n(en),ul=yn(tn),al=yn(en),cl=0,sl=0,fl=0,ll=1e3,hl=0,pl=0,dl=0,vl="object"==typeof performance&&performance.now?performance:Date,gl="object"==typeof window&&window.requestAnimationFrame?window.requestAnimationFrame.bind(window):function(t){setTimeout(t,17)};bn.prototype=wn.prototype={constructor:bn,restart:function(t,n,e){if("function"!=typeof t)throw new TypeError("callback is not a function");e=(null==e?mn():+e)+(null==n?0:+n),this._next||Bf===this||(Bf?Bf._next=this:Yf=this,Bf=this),this._call=t,this._time=e,kn()},stop:function(){this._call&&(this._call=null,this._time=1/0,kn())}};var _l=N("start","end","interrupt"),yl=[],ml=0,xl=1,bl=2,wl=3,Ml=4,Tl=5,Nl=6,kl=at.prototype.constructor,Sl=0,El=at.prototype;qn.prototype=Dn.prototype={constructor:qn,select:function(t){var n=this._name,e=this._id;"function"!=typeof t&&(t=z(t));for(var r=this._groups,i=r.length,o=new Array(i),u=0;u=0&&(t=t.slice(0,n)),!t||"start"===t})}(n)?An:Cn;return function(){var u=o(this,t),a=u.on;a!==r&&(i=(r=a).copy()).on(n,e),u.on=i}}(e,t,n))},attr:function(t,n){var e=E(t),r="transform"===e?Qf:Ln;return this.attrTween(t,"function"==typeof n?(e.local?function(t,n,e){var r,i,o;return function(){var u,a=e(this);if(null!=a)return(u=this.getAttributeNS(t.space,t.local))===a?null:u===r&&a===i?o:o=n(r=u,i=a);this.removeAttributeNS(t.space,t.local)}}:function(t,n,e){var r,i,o;return function(){var u,a=e(this);if(null!=a)return(u=this.getAttribute(t))===a?null:u===r&&a===i?o:o=n(r=u,i=a);this.removeAttribute(t)}})(e,r,Rn(this,"attr."+t,n)):null==n?(e.local?function(t){return function(){this.removeAttributeNS(t.space,t.local)}}:function(t){return function(){this.removeAttribute(t)}})(e):(e.local?function(t,n,e){var r,i;return function(){var o=this.getAttributeNS(t.space,t.local);return o===e?null:o===r?i:i=n(r=o,e)}}:function(t,n,e){var r,i;return function(){var o=this.getAttribute(t);return o===e?null:o===r?i:i=n(r=o,e)}})(e,r,n+""))},attrTween:function(t,n){var e="attr."+t;if(arguments.length<2)return(e=this.tween(e))&&e._value;if(null==n)return this.tween(e,null);if("function"!=typeof n)throw new Error;var r=E(t);return this.tween(e,(r.local?function(t,n){function e(){var e=this,r=n.apply(e,arguments);return r&&function(n){e.setAttributeNS(t.space,t.local,r(n))}}return e._value=n,e}:function(t,n){function e(){var e=this,r=n.apply(e,arguments);return r&&function(n){e.setAttribute(t,r(n))}}return e._value=n,e})(r,n))},style:function(t,n,e){var r="transform"==(t+="")?Gf:Ln;return null==n?this.styleTween(t,function(t,n){var e,r,i;return function(){var o=I(this,t),u=(this.style.removeProperty(t),I(this,t));return o===u?null:o===e&&u===r?i:i=n(e=o,r=u)}}(t,r)).on("end.style."+t,function(t){return function(){this.style.removeProperty(t)}}(t)):this.styleTween(t,"function"==typeof n?function(t,n,e){var r,i,o;return function(){var u=I(this,t),a=e(this);return null==a&&(this.style.removeProperty(t),a=I(this,t)),u===a?null:u===r&&a===i?o:o=n(r=u,i=a)}}(t,r,Rn(this,"style."+t,n)):function(t,n,e){var r,i;return function(){var o=I(this,t);return o===e?null:o===r?i:i=n(r=o,e)}}(t,r,n+""),e)},styleTween:function(t,n,e){var r="style."+(t+="");if(arguments.length<2)return(r=this.tween(r))&&r._value;if(null==n)return this.tween(r,null);if("function"!=typeof n)throw new Error;return this.tween(r,function(t,n,e){function r(){var r=this,i=n.apply(r,arguments);return i&&function(n){r.style.setProperty(t,i(n),e)}}return r._value=n,r}(t,n,null==e?"":e))},text:function(t){return this.tween("text","function"==typeof t?function(t){return function(){var n=t(this);this.textContent=null==n?"":n}}(Rn(this,"text",t)):function(t){return function(){this.textContent=t}}(null==t?"":t+""))},remove:function(){return this.on("end.remove",function(t){return function(){var n=this.parentNode;for(var e in this.__transition)if(+e!==t)return;n&&n.removeChild(this)}}(this._id))},tween:function(t,n){var e=this._id;if(t+="",arguments.length<2){for(var r,i=zn(this.node(),e).tween,o=0,u=i.length;o1e-6)if(Math.abs(f*a-c*s)>1e-6&&i){var h=e-o,p=r-u,d=a*a+c*c,v=h*h+p*p,g=Math.sqrt(d),_=Math.sqrt(l),y=i*Math.tan((yh-Math.acos((d+l-v)/(2*g*_)))/2),m=y/_,x=y/g;Math.abs(m-1)>1e-6&&(this._+="L"+(t+m*s)+","+(n+m*f)),this._+="A"+i+","+i+",0,0,"+ +(f*h>s*p)+","+(this._x1=t+x*a)+","+(this._y1=n+x*c)}else this._+="L"+(this._x1=t)+","+(this._y1=n);else;},arc:function(t,n,e,r,i,o){t=+t,n=+n;var u=(e=+e)*Math.cos(r),a=e*Math.sin(r),c=t+u,s=n+a,f=1^o,l=o?r-i:i-r;if(e<0)throw new Error("negative radius: "+e);null===this._x1?this._+="M"+c+","+s:(Math.abs(this._x1-c)>1e-6||Math.abs(this._y1-s)>1e-6)&&(this._+="L"+c+","+s),e&&(l<0&&(l=l%mh+mh),l>xh?this._+="A"+e+","+e+",0,1,"+f+","+(t-u)+","+(n-a)+"A"+e+","+e+",0,1,"+f+","+(this._x1=c)+","+(this._y1=s):l>1e-6&&(this._+="A"+e+","+e+",0,"+ +(l>=yh)+","+f+","+(this._x1=t+e*Math.cos(i))+","+(this._y1=n+e*Math.sin(i))))},rect:function(t,n,e,r){this._+="M"+(this._x0=this._x1=+t)+","+(this._y0=this._y1=+n)+"h"+ +e+"v"+ +r+"h"+-e+"Z"},toString:function(){return this._}};ce.prototype=se.prototype={constructor:ce,has:function(t){return"$"+t in this},get:function(t){return this["$"+t]},set:function(t,n){return this["$"+t]=n,this},remove:function(t){var n="$"+t;return n in this&&delete this[n]},clear:function(){for(var t in this)"$"===t[0]&&delete this[t]},keys:function(){var t=[];for(var n in this)"$"===n[0]&&t.push(n.slice(1));return t},values:function(){var t=[];for(var n in this)"$"===n[0]&&t.push(this[n]);return t},entries:function(){var t=[];for(var n in this)"$"===n[0]&&t.push({key:n.slice(1),value:this[n]});return t},size:function(){var t=0;for(var n in this)"$"===n[0]&&++t;return t},empty:function(){for(var t in this)if("$"===t[0])return!1;return!0},each:function(t){for(var n in this)"$"===n[0]&&t(this[n],n.slice(1),this)}};var bh=se.prototype;de.prototype=ve.prototype={constructor:de,has:bh.has,add:function(t){return t+="",this["$"+t]=t,this},remove:bh.remove,clear:bh.clear,values:bh.keys,size:bh.size,empty:bh.empty,each:bh.each};var wh={},Mh={},Th=34,Nh=10,kh=13,Sh=_e(","),Eh=Sh.parse,Ah=Sh.parseRows,Ch=Sh.format,zh=Sh.formatRows,Ph=_e("\t"),Rh=Ph.parse,Lh=Ph.parseRows,qh=Ph.format,Dh=Ph.formatRows,Uh=Te.prototype=Ne.prototype;Uh.copy=function(){var t,n,e=new Ne(this._x,this._y,this._x0,this._y0,this._x1,this._y1),r=this._root;if(!r)return e;if(!r.length)return e._root=ke(r),e;for(t=[{source:r,target:e._root=new Array(4)}];r=t.pop();)for(var i=0;i<4;++i)(n=r.source[i])&&(n.length?t.push({source:n,target:r.target[i]=new Array(4)}):r.target[i]=ke(n));return e},Uh.add=function(t){var n=+this._x.call(null,t),e=+this._y.call(null,t);return xe(this.cover(n,e),n,e,t)},Uh.addAll=function(t){var n,e,r,i,o=t.length,u=new Array(o),a=new Array(o),c=1/0,s=1/0,f=-1/0,l=-1/0;for(e=0;ef&&(f=r),il&&(l=i));for(ft||t>i||r>n||n>o))return this;var u,a,c=i-e,s=this._root;switch(a=(n<(r+o)/2)<<1|t<(e+i)/2){case 0:do{u=new Array(4),u[a]=s,s=u}while(c*=2,i=e+c,o=r+c,t>i||n>o);break;case 1:do{u=new Array(4),u[a]=s,s=u}while(c*=2,e=i-c,o=r+c,e>t||n>o);break;case 2:do{u=new Array(4),u[a]=s,s=u}while(c*=2,i=e+c,r=o-c,t>i||r>n);break;case 3:do{u=new Array(4),u[a]=s,s=u}while(c*=2,e=i-c,r=o-c,e>t||r>n)}this._root&&this._root.length&&(this._root=s)}return this._x0=e,this._y0=r,this._x1=i,this._y1=o,this},Uh.data=function(){var t=[];return this.visit(function(n){if(!n.length)do{t.push(n.data)}while(n=n.next)}),t},Uh.extent=function(t){return arguments.length?this.cover(+t[0][0],+t[0][1]).cover(+t[1][0],+t[1][1]):isNaN(this._x0)?void 0:[[this._x0,this._y0],[this._x1,this._y1]]},Uh.find=function(t,n,e){var r,i,o,u,a,c,s,f=this._x0,l=this._y0,h=this._x1,p=this._y1,d=[],v=this._root;for(v&&d.push(new be(v,f,l,h,p)),null==e?e=1/0:(f=t-e,l=n-e,h=t+e,p=n+e,e*=e);c=d.pop();)if(!(!(v=c.node)||(i=c.x0)>h||(o=c.y0)>p||(u=c.x1)=_)<<1|t>=g)&&(c=d[d.length-1],d[d.length-1]=d[d.length-1-s],d[d.length-1-s]=c)}else{var y=t-+this._x.call(null,v.data),m=n-+this._y.call(null,v.data),x=y*y+m*m;if(x=(a=(d+g)/2))?d=a:g=a,(f=u>=(c=(v+_)/2))?v=c:_=c,n=p,!(p=p[l=f<<1|s]))return this;if(!p.length)break;(n[l+1&3]||n[l+2&3]||n[l+3&3])&&(e=n,h=l)}for(;p.data!==t;)if(r=p,!(p=p.next))return this;return(i=p.next)&&delete p.next,r?(i?r.next=i:delete r.next,this):n?(i?n[l]=i:delete n[l],(p=n[0]||n[1]||n[2]||n[3])&&p===(n[3]||n[2]||n[1]||n[0])&&!p.length&&(e?e[h]=p:this._root=p),this):(this._root=i,this)},Uh.removeAll=function(t){for(var n=0,e=t.length;n0&&(o=0)}return o>0?t.slice(0,o)+t.slice(e+1):t},"%":function(t,n){return(100*t).toFixed(n)},b:function(t){return Math.round(t).toString(2)},c:function(t){return t+""},d:function(t){return Math.round(t).toString(10)},e:function(t,n){return t.toExponential(n)},f:function(t,n){return t.toFixed(n)},g:function(t,n){return t.toPrecision(n)},o:function(t){return Math.round(t).toString(8)},p:function(t,n){return qe(100*t,n)},r:qe,s:function(t,n){var e=Re(t,n);if(!e)return t+"";var r=e[0],i=e[1],o=i-(Oh=3*Math.max(-8,Math.min(8,Math.floor(i/3))))+1,u=r.length;return o===u?r:o>u?r+new Array(o-u+1).join("0"):o>0?r.slice(0,o)+"."+r.slice(o):"0."+new Array(1-o).join("0")+Re(t,Math.max(0,n+o-1))[0]},X:function(t){return Math.round(t).toString(16).toUpperCase()},x:function(t){return Math.round(t).toString(16)}},Bh=/^(?:(.)?([<>=^]))?([+\-\( ])?([$#])?(0)?(\d+)?(,)?(\.\d+)?([a-z%])?$/i;De.prototype=Ue.prototype,Ue.prototype.toString=function(){return this.fill+this.align+this.sign+this.symbol+(this.zero?"0":"")+(null==this.width?"":Math.max(1,0|this.width))+(this.comma?",":"")+(null==this.precision?"":"."+Math.max(0,0|this.precision))+this.type};var Hh,jh=["y","z","a","f","p","n","µ","m","","k","M","G","T","P","E","Z","Y"];Ie({decimal:".",thousands:",",grouping:[3],currency:["$",""]}),Xe.prototype={constructor:Xe,reset:function(){this.s=this.t=0},add:function(t){Ve(wp,t,this.t),Ve(this,wp.s,this.s),this.s?this.t+=wp.t:this.s=wp.t},valueOf:function(){return this.s}};var Xh,Vh,$h,Wh,Zh,Gh,Qh,Jh,Kh,tp,np,ep,rp,ip,op,up,ap,cp,sp,fp,lp,hp,pp,dp,vp,gp,_p,yp,mp,xp,bp,wp=new Xe,Mp=1e-6,Tp=1e-12,Np=Math.PI,kp=Np/2,Sp=Np/4,Ep=2*Np,Ap=180/Np,Cp=Np/180,zp=Math.abs,Pp=Math.atan,Rp=Math.atan2,Lp=Math.cos,qp=Math.ceil,Dp=Math.exp,Up=Math.log,Op=Math.pow,Fp=Math.sin,Ip=Math.sign||function(t){return t>0?1:t<0?-1:0},Yp=Math.sqrt,Bp=Math.tan,Hp={Feature:function(t,n){Qe(t.geometry,n)},FeatureCollection:function(t,n){for(var e=t.features,r=-1,i=e.length;++rMp?Kh=90:Wp<-Mp&&(Qh=-90),op[0]=Gh,op[1]=Jh}},Gp={sphere:Ge,point:wr,lineStart:Tr,lineEnd:Sr,polygonStart:function(){Gp.lineStart=Er,Gp.lineEnd=Ar},polygonEnd:function(){Gp.lineStart=Tr,Gp.lineEnd=Sr}};Lr.invert=Lr;var Qp,Jp,Kp,td,nd,ed,rd,id,od,ud,ad,cd=je(),sd=Wr(function(){return!0},function(t){var n,e=NaN,r=NaN,i=NaN;return{lineStart:function(){t.lineStart(),n=1},point:function(o,u){var a=o>0?Np:-Np,c=zp(o-e);zp(c-Np)0?kp:-kp),t.point(i,r),t.lineEnd(),t.lineStart(),t.point(a,r),t.point(o,r),n=0):i!==a&&c>=Np&&(zp(e-i)Mp?Pp((Fp(n)*(o=Lp(r))*Fp(e)-Fp(r)*(i=Lp(n))*Fp(t))/(i*o*u)):(n+r)/2}(e,r,o,u),t.point(i,r),t.lineEnd(),t.lineStart(),t.point(a,r),n=0),t.point(e=o,r=u),i=a},lineEnd:function(){t.lineEnd(),e=r=NaN},clean:function(){return 2-n}}},function(t,n,e,r){var i;if(null==t)i=e*kp,r.point(-Np,i),r.point(0,i),r.point(Np,i),r.point(Np,0),r.point(Np,-i),r.point(0,-i),r.point(-Np,-i),r.point(-Np,0),r.point(-Np,i);else if(zp(t[0]-n[0])>Mp){var o=t[0]Md&&(Md=t),nTd&&(Td=n)},lineStart:Ge,lineEnd:Ge,polygonStart:Ge,polygonEnd:Ge,result:function(){var t=[[bd,wd],[Md,Td]];return Md=Td=-(wd=bd=1/0),t}},kd=0,Sd=0,Ed=0,Ad=0,Cd=0,zd=0,Pd=0,Rd=0,Ld=0,qd={point:yi,lineStart:mi,lineEnd:wi,polygonStart:function(){qd.lineStart=Mi,qd.lineEnd=Ti},polygonEnd:function(){qd.point=yi,qd.lineStart=mi,qd.lineEnd=wi},result:function(){var t=Ld?[Pd/Ld,Rd/Ld]:zd?[Ad/zd,Cd/zd]:Ed?[kd/Ed,Sd/Ed]:[NaN,NaN];return kd=Sd=Ed=Ad=Cd=zd=Pd=Rd=Ld=0,t}};Si.prototype={_radius:4.5,pointRadius:function(t){return this._radius=t,this},polygonStart:function(){this._line=0},polygonEnd:function(){this._line=NaN},lineStart:function(){this._point=0},lineEnd:function(){0===this._line&&this._context.closePath(),this._point=NaN},point:function(t,n){switch(this._point){case 0:this._context.moveTo(t,n),this._point=1;break;case 1:this._context.lineTo(t,n);break;default:this._context.moveTo(t+this._radius,n),this._context.arc(t,n,this._radius,0,Ep)}},result:Ge};var Dd,Ud,Od,Fd,Id,Yd=je(),Bd={point:Ge,lineStart:function(){Bd.point=Ei},lineEnd:function(){Dd&&Ai(Ud,Od),Bd.point=Ge},polygonStart:function(){Dd=!0},polygonEnd:function(){Dd=null},result:function(){var t=+Yd;return Yd.reset(),t}};Ci.prototype={_radius:4.5,_circle:zi(4.5),pointRadius:function(t){return(t=+t)!==this._radius&&(this._radius=t,this._circle=null),this},polygonStart:function(){this._line=0},polygonEnd:function(){this._line=NaN},lineStart:function(){this._point=0},lineEnd:function(){0===this._line&&this._string.push("Z"),this._point=NaN},point:function(t,n){switch(this._point){case 0:this._string.push("M",t,",",n),this._point=1;break;case 1:this._string.push("L",t,",",n);break;default:null==this._circle&&(this._circle=zi(this._radius)),this._string.push("M",t,",",n,this._circle)}},result:function(){if(this._string.length){var t=this._string.join("");return this._string=[],t}return null}},Ri.prototype={constructor:Ri,point:function(t,n){this.stream.point(t,n)},sphere:function(){this.stream.sphere()},lineStart:function(){this.stream.lineStart()},lineEnd:function(){this.stream.lineEnd()},polygonStart:function(){this.stream.polygonStart()},polygonEnd:function(){this.stream.polygonEnd()}};var Hd=16,jd=Lp(30*Cp),Xd=Pi({point:function(t,n){this.stream.point(t*Cp,n*Cp)}}),Vd=Vi(function(t){return Yp(2/(1+t))});Vd.invert=$i(function(t){return 2*We(t/2)});var $d=Vi(function(t){return(t=$e(t))&&t/Fp(t)});$d.invert=$i(function(t){return t}),Wi.invert=function(t,n){return[t,2*Pp(Dp(n))-kp]},Ji.invert=Ji,to.invert=$i(Pp),eo.invert=function(t,n){var e,r=n,i=25;do{var o=r*r,u=o*o;r-=e=(r*(1.007226+o*(.015085+u*(.028874*o-.044475-.005916*u)))-n)/(1.007226+o*(.045255+u*(.259866*o-.311325-.005916*11*u)))}while(zp(e)>Mp&&--i>0);return[t/(.8707+(o=r*r)*(o*(o*o*o*(.003971-.001529*o)-.013791)-.131979)),r]},ro.invert=$i(We),io.invert=$i(function(t){return 2*Pp(t)}),oo.invert=function(t,n){return[-n,2*Pp(Dp(t))-kp]},vo.prototype=fo.prototype={constructor:vo,count:function(){return this.eachAfter(so)},each:function(t){var n,e,r,i,o=this,u=[o];do{for(n=u.reverse(),u=[];o=n.pop();)if(t(o),e=o.children)for(r=0,i=e.length;r=0;--e)i.push(n[e]);return this},sum:function(t){return this.eachAfter(function(n){for(var e=+t(n.data)||0,r=n.children,i=r&&r.length;--i>=0;)e+=r[i].value;n.value=e})},sort:function(t){return this.eachBefore(function(n){n.children&&n.children.sort(t)})},path:function(t){for(var n=this,e=function(t,n){if(t===n)return t;var e=t.ancestors(),r=n.ancestors(),i=null;for(t=e.pop(),n=r.pop();t===n;)i=t,t=e.pop(),n=r.pop();return i}(n,t),r=[n];n!==e;)n=n.parent,r.push(n);for(var i=r.length;t!==e;)r.splice(i,0,t),t=t.parent;return r},ancestors:function(){for(var t=this,n=[t];t=t.parent;)n.push(t);return n},descendants:function(){var t=[];return this.each(function(n){t.push(n)}),t},leaves:function(){var t=[];return this.eachBefore(function(n){n.children||t.push(n)}),t},links:function(){var t=this,n=[];return t.each(function(e){e!==t&&n.push({source:e.parent,target:e})}),n},copy:function(){return fo(this).eachBefore(ho)}};var Wd=Array.prototype.slice,Zd="$",Gd={depth:-1},Qd={};Ho.prototype=Object.create(vo.prototype);var Jd=(1+Math.sqrt(5))/2,Kd=function t(n){function e(t,e,r,i,o){Xo(n,t,e,r,i,o)}return e.ratio=function(n){return t((n=+n)>1?n:1)},e}(Jd),tv=function t(n){function e(t,e,r,i,o){if((u=t._squarify)&&u.ratio===n)for(var u,a,c,s,f,l=-1,h=u.length,p=t.value;++l1?n:1)},e}(Jd),nv=[].slice,ev={};Zo.prototype=Ko.prototype={constructor:Zo,defer:function(t){if("function"!=typeof t)throw new Error("invalid callback");if(this._call)throw new Error("defer after await");if(null!=this._error)return this;var n=nv.call(arguments,1);return n.push(t),++this._waiting,this._tasks.push(n),Go(this),this},abort:function(){return null==this._error&&Qo(this,new Error("abort")),this},await:function(t){if("function"!=typeof t)throw new Error("invalid callback");if(this._call)throw new Error("multiple await");return this._call=function(n,e){t.apply(null,[n].concat(e))},Jo(this),this},awaitAll:function(t){if("function"!=typeof t)throw new Error("invalid callback");if(this._call)throw new Error("multiple await");return this._call=t,Jo(this),this}};var rv=function t(n){function e(t,e){return t=null==t?0:+t,e=null==e?1:+e,1===arguments.length?(e=t,t=0):e-=t,function(){return n()*e+t}}return e.source=t,e}(tu),iv=function t(n){function e(t,e){var r,i;return t=null==t?0:+t,e=null==e?1:+e,function(){var o;if(null!=r)o=r,r=null;else do{r=2*n()-1,o=2*n()-1,i=r*r+o*o}while(!i||i>1);return t+e*o*Math.sqrt(-2*Math.log(i)/i)}}return e.source=t,e}(tu),ov=function t(n){function e(){var t=iv.source(n).apply(this,arguments);return function(){return Math.exp(t())}}return e.source=t,e}(tu),uv=function t(n){function e(t){return function(){for(var e=0,r=0;r0?t>1?Cu(function(n){n.setTime(Math.floor(n/t)*t)},function(n,e){n.setTime(+n+e*t)},function(n,e){return(e-n)/t}):wv:null};var Mv=wv.range,Tv=6e4,Nv=6048e5,kv=Cu(function(t){t.setTime(1e3*Math.floor(t/1e3))},function(t,n){t.setTime(+t+1e3*n)},function(t,n){return(n-t)/1e3},function(t){return t.getUTCSeconds()}),Sv=kv.range,Ev=Cu(function(t){t.setTime(Math.floor(t/Tv)*Tv)},function(t,n){t.setTime(+t+n*Tv)},function(t,n){return(n-t)/Tv},function(t){return t.getMinutes()}),Av=Ev.range,Cv=Cu(function(t){var n=t.getTimezoneOffset()*Tv%36e5;n<0&&(n+=36e5),t.setTime(36e5*Math.floor((+t-n)/36e5)+n)},function(t,n){t.setTime(+t+36e5*n)},function(t,n){return(n-t)/36e5},function(t){return t.getHours()}),zv=Cv.range,Pv=Cu(function(t){t.setHours(0,0,0,0)},function(t,n){t.setDate(t.getDate()+n)},function(t,n){return(n-t-(n.getTimezoneOffset()-t.getTimezoneOffset())*Tv)/864e5},function(t){return t.getDate()-1}),Rv=Pv.range,Lv=zu(0),qv=zu(1),Dv=zu(2),Uv=zu(3),Ov=zu(4),Fv=zu(5),Iv=zu(6),Yv=Lv.range,Bv=qv.range,Hv=Dv.range,jv=Uv.range,Xv=Ov.range,Vv=Fv.range,$v=Iv.range,Wv=Cu(function(t){t.setDate(1),t.setHours(0,0,0,0)},function(t,n){t.setMonth(t.getMonth()+n)},function(t,n){return n.getMonth()-t.getMonth()+12*(n.getFullYear()-t.getFullYear())},function(t){return t.getMonth()}),Zv=Wv.range,Gv=Cu(function(t){t.setMonth(0,1),t.setHours(0,0,0,0)},function(t,n){t.setFullYear(t.getFullYear()+n)},function(t,n){return n.getFullYear()-t.getFullYear()},function(t){return t.getFullYear()});Gv.every=function(t){return isFinite(t=Math.floor(t))&&t>0?Cu(function(n){n.setFullYear(Math.floor(n.getFullYear()/t)*t),n.setMonth(0,1),n.setHours(0,0,0,0)},function(n,e){n.setFullYear(n.getFullYear()+e*t)}):null};var Qv=Gv.range,Jv=Cu(function(t){t.setUTCSeconds(0,0)},function(t,n){t.setTime(+t+n*Tv)},function(t,n){return(n-t)/Tv},function(t){return t.getUTCMinutes()}),Kv=Jv.range,tg=Cu(function(t){t.setUTCMinutes(0,0,0)},function(t,n){t.setTime(+t+36e5*n)},function(t,n){return(n-t)/36e5},function(t){return t.getUTCHours()}),ng=tg.range,eg=Cu(function(t){t.setUTCHours(0,0,0,0)},function(t,n){t.setUTCDate(t.getUTCDate()+n)},function(t,n){return(n-t)/864e5},function(t){return t.getUTCDate()-1}),rg=eg.range,ig=Pu(0),og=Pu(1),ug=Pu(2),ag=Pu(3),cg=Pu(4),sg=Pu(5),fg=Pu(6),lg=ig.range,hg=og.range,pg=ug.range,dg=ag.range,vg=cg.range,gg=sg.range,_g=fg.range,yg=Cu(function(t){t.setUTCDate(1),t.setUTCHours(0,0,0,0)},function(t,n){t.setUTCMonth(t.getUTCMonth()+n)},function(t,n){return n.getUTCMonth()-t.getUTCMonth()+12*(n.getUTCFullYear()-t.getUTCFullYear())},function(t){return t.getUTCMonth()}),mg=yg.range,xg=Cu(function(t){t.setUTCMonth(0,1),t.setUTCHours(0,0,0,0)},function(t,n){t.setUTCFullYear(t.getUTCFullYear()+n)},function(t,n){return n.getUTCFullYear()-t.getUTCFullYear()},function(t){return t.getUTCFullYear()});xg.every=function(t){return isFinite(t=Math.floor(t))&&t>0?Cu(function(n){n.setUTCFullYear(Math.floor(n.getUTCFullYear()/t)*t),n.setUTCMonth(0,1),n.setUTCHours(0,0,0,0)},function(n,e){n.setUTCFullYear(n.getUTCFullYear()+e*t)}):null};var bg,wg=xg.range,Mg={"-":"",_:" ",0:"0"},Tg=/^\s*\d+/,Ng=/^%/,kg=/[\\^$*+?|[\]().{}]/g;Ha({dateTime:"%x, %X",date:"%-m/%-d/%Y",time:"%-I:%M:%S %p",periods:["AM","PM"],days:["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"],shortDays:["Sun","Mon","Tue","Wed","Thu","Fri","Sat"],months:["January","February","March","April","May","June","July","August","September","October","November","December"],shortMonths:["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"]});var Sg="%Y-%m-%dT%H:%M:%S.%LZ",Eg=Date.prototype.toISOString?function(t){return t.toISOString()}:t.utcFormat(Sg),Ag=+new Date("2000-01-01T00:00:00.000Z")?function(t){var n=new Date(t);return isNaN(n)?null:n}:t.utcParse(Sg),Cg=1e3,zg=60*Cg,Pg=60*zg,Rg=24*Pg,Lg=7*Rg,qg=30*Rg,Dg=365*Rg,Ug=$a("1f77b4ff7f0e2ca02cd627289467bd8c564be377c27f7f7fbcbd2217becf"),Og=$a("393b795254a36b6ecf9c9ede6379398ca252b5cf6bcedb9c8c6d31bd9e39e7ba52e7cb94843c39ad494ad6616be7969c7b4173a55194ce6dbdde9ed6"),Fg=$a("3182bd6baed69ecae1c6dbefe6550dfd8d3cfdae6bfdd0a231a35474c476a1d99bc7e9c0756bb19e9ac8bcbddcdadaeb636363969696bdbdbdd9d9d9"),Ig=$a("1f77b4aec7e8ff7f0effbb782ca02c98df8ad62728ff98969467bdc5b0d58c564bc49c94e377c2f7b6d27f7f7fc7c7c7bcbd22dbdb8d17becf9edae5"),Yg=al($t(300,.5,0),$t(-240,.5,1)),Bg=al($t(-100,.75,.35),$t(80,1.5,.8)),Hg=al($t(260,.75,.35),$t(80,1.5,.8)),jg=$t(),Xg=Wa($a("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")),Vg=Wa($a("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")),$g=Wa($a("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")),Wg=Wa($a("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")),Zg=Math.abs,Gg=Math.atan2,Qg=Math.cos,Jg=Math.max,Kg=Math.min,t_=Math.sin,n_=Math.sqrt,e_=1e-12,r_=Math.PI,i_=r_/2,o_=2*r_;ic.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._point=0},lineEnd:function(){(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;default:this._context.lineTo(t,n)}}};var u_=pc(oc);hc.prototype={areaStart:function(){this._curve.areaStart()},areaEnd:function(){this._curve.areaEnd()},lineStart:function(){this._curve.lineStart()},lineEnd:function(){this._curve.lineEnd()},point:function(t,n){this._curve.point(n*Math.sin(t),n*-Math.cos(t))}};var a_=Array.prototype.slice,c_={draw:function(t,n){var e=Math.sqrt(n/r_);t.moveTo(e,0),t.arc(0,0,e,0,o_)}},s_={draw:function(t,n){var e=Math.sqrt(n/5)/2;t.moveTo(-3*e,-e),t.lineTo(-e,-e),t.lineTo(-e,-3*e),t.lineTo(e,-3*e),t.lineTo(e,-e),t.lineTo(3*e,-e),t.lineTo(3*e,e),t.lineTo(e,e),t.lineTo(e,3*e),t.lineTo(-e,3*e),t.lineTo(-e,e),t.lineTo(-3*e,e),t.closePath()}},f_=Math.sqrt(1/3),l_=2*f_,h_={draw:function(t,n){var e=Math.sqrt(n/l_),r=e*f_;t.moveTo(0,-e),t.lineTo(r,0),t.lineTo(0,e),t.lineTo(-r,0),t.closePath()}},p_=Math.sin(r_/10)/Math.sin(7*r_/10),d_=Math.sin(o_/10)*p_,v_=-Math.cos(o_/10)*p_,g_={draw:function(t,n){var e=Math.sqrt(.8908130915292852*n),r=d_*e,i=v_*e;t.moveTo(0,-e),t.lineTo(r,i);for(var o=1;o<5;++o){var u=o_*o/5,a=Math.cos(u),c=Math.sin(u);t.lineTo(c*e,-a*e),t.lineTo(a*r-c*i,c*r+a*i)}t.closePath()}},__={draw:function(t,n){var e=Math.sqrt(n),r=-e/2;t.rect(r,r,e,e)}},y_=Math.sqrt(3),m_={draw:function(t,n){var e=-Math.sqrt(n/(3*y_));t.moveTo(0,2*e),t.lineTo(-y_*e,-e),t.lineTo(y_*e,-e),t.closePath()}},x_=Math.sqrt(3)/2,b_=1/Math.sqrt(12),w_=3*(b_/2+1),M_={draw:function(t,n){var e=Math.sqrt(n/w_),r=e/2,i=e*b_,o=r,u=e*b_+e,a=-o,c=u;t.moveTo(r,i),t.lineTo(o,u),t.lineTo(a,c),t.lineTo(-.5*r-x_*i,x_*r+-.5*i),t.lineTo(-.5*o-x_*u,x_*o+-.5*u),t.lineTo(-.5*a-x_*c,x_*a+-.5*c),t.lineTo(-.5*r+x_*i,-.5*i-x_*r),t.lineTo(-.5*o+x_*u,-.5*u-x_*o),t.lineTo(-.5*a+x_*c,-.5*c-x_*a),t.closePath()}},T_=[c_,s_,h_,__,g_,m_,M_];kc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=NaN,this._point=0},lineEnd:function(){switch(this._point){case 3:Nc(this,this._x1,this._y1);case 2:this._context.lineTo(this._x1,this._y1)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3,this._context.lineTo((5*this._x0+this._x1)/6,(5*this._y0+this._y1)/6);default:Nc(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},Sc.prototype={areaStart:Tc,areaEnd:Tc,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._y0=this._y1=this._y2=this._y3=this._y4=NaN,this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x2,this._y2),this._context.closePath();break;case 2:this._context.moveTo((this._x2+2*this._x3)/3,(this._y2+2*this._y3)/3),this._context.lineTo((this._x3+2*this._x2)/3,(this._y3+2*this._y2)/3),this._context.closePath();break;case 3:this.point(this._x2,this._y2),this.point(this._x3,this._y3),this.point(this._x4,this._y4)}},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._x2=t,this._y2=n;break;case 1:this._point=2,this._x3=t,this._y3=n;break;case 2:this._point=3,this._x4=t,this._y4=n,this._context.moveTo((this._x0+4*this._x1+t)/6,(this._y0+4*this._y1+n)/6);break;default:Nc(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},Ec.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3;var e=(this._x0+4*this._x1+t)/6,r=(this._y0+4*this._y1+n)/6;this._line?this._context.lineTo(e,r):this._context.moveTo(e,r);break;case 3:this._point=4;default:Nc(this,t,n)}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n}},Ac.prototype={lineStart:function(){this._x=[],this._y=[],this._basis.lineStart()},lineEnd:function(){var t=this._x,n=this._y,e=t.length-1;if(e>0)for(var r,i=t[0],o=n[0],u=t[e]-i,a=n[e]-o,c=-1;++c<=e;)r=c/e,this._basis.point(this._beta*t[c]+(1-this._beta)*(i+r*u),this._beta*n[c]+(1-this._beta)*(o+r*a));this._x=this._y=null,this._basis.lineEnd()},point:function(t,n){this._x.push(+t),this._y.push(+n)}};var N_=function t(n){function e(t){return 1===n?new kc(t):new Ac(t,n)}return e.beta=function(n){return t(+n)},e}(.85);zc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:Cc(this,this._x1,this._y1)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2,this._x1=t,this._y1=n;break;case 2:this._point=3;default:Cc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var k_=function t(n){function e(t){return new zc(t,n)}return e.tension=function(n){return t(+n)},e}(0);Pc.prototype={areaStart:Tc,areaEnd:Tc,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._x5=this._y0=this._y1=this._y2=this._y3=this._y4=this._y5=NaN,this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x3,this._y3),this._context.closePath();break;case 2:this._context.lineTo(this._x3,this._y3),this._context.closePath();break;case 3:this.point(this._x3,this._y3),this.point(this._x4,this._y4),this.point(this._x5,this._y5)}},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._x3=t,this._y3=n;break;case 1:this._point=2,this._context.moveTo(this._x4=t,this._y4=n);break;case 2:this._point=3,this._x5=t,this._y5=n;break;default:Cc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var S_=function t(n){function e(t){return new Pc(t,n)}return e.tension=function(n){return t(+n)},e}(0);Rc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3,this._line?this._context.lineTo(this._x2,this._y2):this._context.moveTo(this._x2,this._y2);break;case 3:this._point=4;default:Cc(this,t,n)}this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var E_=function t(n){function e(t){return new Rc(t,n)}return e.tension=function(n){return t(+n)},e}(0);qc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x2,this._y2);break;case 3:this.point(this._x2,this._y2)}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3;default:Lc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var A_=function t(n){function e(t){return n?new qc(t,n):new zc(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);Dc.prototype={areaStart:Tc,areaEnd:Tc,lineStart:function(){this._x0=this._x1=this._x2=this._x3=this._x4=this._x5=this._y0=this._y1=this._y2=this._y3=this._y4=this._y5=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){switch(this._point){case 1:this._context.moveTo(this._x3,this._y3),this._context.closePath();break;case 2:this._context.lineTo(this._x3,this._y3),this._context.closePath();break;case 3:this.point(this._x3,this._y3),this.point(this._x4,this._y4),this.point(this._x5,this._y5)}},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1,this._x3=t,this._y3=n;break;case 1:this._point=2,this._context.moveTo(this._x4=t,this._y4=n);break;case 2:this._point=3,this._x5=t,this._y5=n;break;default:Lc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var C_=function t(n){function e(t){return n?new Dc(t,n):new Pc(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);Uc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._x2=this._y0=this._y1=this._y2=NaN,this._l01_a=this._l12_a=this._l23_a=this._l01_2a=this._l12_2a=this._l23_2a=this._point=0},lineEnd:function(){(this._line||0!==this._line&&3===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){if(t=+t,n=+n,this._point){var e=this._x2-t,r=this._y2-n;this._l23_a=Math.sqrt(this._l23_2a=Math.pow(e*e+r*r,this._alpha))}switch(this._point){case 0:this._point=1;break;case 1:this._point=2;break;case 2:this._point=3,this._line?this._context.lineTo(this._x2,this._y2):this._context.moveTo(this._x2,this._y2);break;case 3:this._point=4;default:Lc(this,t,n)}this._l01_a=this._l12_a,this._l12_a=this._l23_a,this._l01_2a=this._l12_2a,this._l12_2a=this._l23_2a,this._x0=this._x1,this._x1=this._x2,this._x2=t,this._y0=this._y1,this._y1=this._y2,this._y2=n}};var z_=function t(n){function e(t){return n?new Uc(t,n):new Rc(t,0)}return e.alpha=function(n){return t(+n)},e}(.5);Oc.prototype={areaStart:Tc,areaEnd:Tc,lineStart:function(){this._point=0},lineEnd:function(){this._point&&this._context.closePath()},point:function(t,n){t=+t,n=+n,this._point?this._context.lineTo(t,n):(this._point=1,this._context.moveTo(t,n))}},Hc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x0=this._x1=this._y0=this._y1=this._t0=NaN,this._point=0},lineEnd:function(){switch(this._point){case 2:this._context.lineTo(this._x1,this._y1);break;case 3:Bc(this,this._t0,Yc(this,this._t0))}(this._line||0!==this._line&&1===this._point)&&this._context.closePath(),this._line=1-this._line},point:function(t,n){var e=NaN;if(t=+t,n=+n,t!==this._x1||n!==this._y1){switch(this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;break;case 2:this._point=3,Bc(this,Yc(this,e=Ic(this,t,n)),e);break;default:Bc(this,this._t0,e=Ic(this,t,n))}this._x0=this._x1,this._x1=t,this._y0=this._y1,this._y1=n,this._t0=e}}},(jc.prototype=Object.create(Hc.prototype)).point=function(t,n){Hc.prototype.point.call(this,n,t)},Xc.prototype={moveTo:function(t,n){this._context.moveTo(n,t)},closePath:function(){this._context.closePath()},lineTo:function(t,n){this._context.lineTo(n,t)},bezierCurveTo:function(t,n,e,r,i,o){this._context.bezierCurveTo(n,t,r,e,o,i)}},Vc.prototype={areaStart:function(){this._line=0},areaEnd:function(){this._line=NaN},lineStart:function(){this._x=[],this._y=[]},lineEnd:function(){var t=this._x,n=this._y,e=t.length;if(e)if(this._line?this._context.lineTo(t[0],n[0]):this._context.moveTo(t[0],n[0]),2===e)this._context.lineTo(t[1],n[1]);else for(var r=$c(t),i=$c(n),o=0,u=1;u=0&&(this._t=1-this._t,this._line=1-this._line)},point:function(t,n){switch(t=+t,n=+n,this._point){case 0:this._point=1,this._line?this._context.lineTo(t,n):this._context.moveTo(t,n);break;case 1:this._point=2;default:if(this._t<=0)this._context.lineTo(this._x,n),this._context.lineTo(t,n);else{var e=this._x*(1-this._t)+t*this._t;this._context.lineTo(e,this._y),this._context.lineTo(e,n)}}this._x=t,this._y=n}},rs.prototype={constructor:rs,insert:function(t,n){var e,r,i;if(t){if(n.P=t,n.N=t.N,t.N&&(t.N.P=n),t.N=n,t.R){for(t=t.R;t.L;)t=t.L;t.L=n}else t.R=n;e=t}else this._?(t=as(this._),n.P=null,n.N=t,t.P=t.L=n,e=t):(n.P=n.N=null,this._=n,e=null);for(n.L=n.R=null,n.U=e,n.C=!0,t=n;e&&e.C;)e===(r=e.U).L?(i=r.R)&&i.C?(e.C=i.C=!1,r.C=!0,t=r):(t===e.R&&(os(this,e),e=(t=e).U),e.C=!1,r.C=!0,us(this,r)):(i=r.L)&&i.C?(e.C=i.C=!1,r.C=!0,t=r):(t===e.L&&(us(this,e),e=(t=e).U),e.C=!1,r.C=!0,os(this,r)),e=t.U;this._.C=!1},remove:function(t){t.N&&(t.N.P=t.P),t.P&&(t.P.N=t.N),t.N=t.P=null;var n,e,r,i=t.U,o=t.L,u=t.R;if(e=o?u?as(u):o:u,i?i.L===t?i.L=e:i.R=e:this._=e,o&&u?(r=e.C,e.C=t.C,e.L=o,o.U=e,e!==u?(i=e.U,e.U=t.U,t=e.R,i.L=t,e.R=u,u.U=e):(e.U=i,i=e,t=e.R)):(r=t.C,t=e),t&&(t.U=i),!r)if(t&&t.C)t.C=!1;else{do{if(t===this._)break;if(t===i.L){if((n=i.R).C&&(n.C=!1,i.C=!0,os(this,i),n=i.R),n.L&&n.L.C||n.R&&n.R.C){n.R&&n.R.C||(n.L.C=!1,n.C=!0,us(this,n),n=i.R),n.C=i.C,i.C=n.R.C=!1,os(this,i),t=this._;break}}else if((n=i.L).C&&(n.C=!1,i.C=!0,us(this,i),n=i.L),n.L&&n.L.C||n.R&&n.R.C){n.L&&n.L.C||(n.R.C=!1,n.C=!0,os(this,n),n=i.L),n.C=i.C,i.C=n.L.C=!1,us(this,i),t=this._;break}n.C=!0,t=i,i=i.U}while(!t.C);t&&(t.C=!1)}}};var P_,R_,L_,q_,D_,U_=[],O_=[],F_=1e-6,I_=1e-12;Ns.prototype={constructor:Ns,polygons:function(){var t=this.edges;return this.cells.map(function(n){var e=n.halfedges.map(function(e){return ds(n,t[e])});return e.data=n.site.data,e})},triangles:function(){var t=[],n=this.edges;return this.cells.forEach(function(e,r){if(o=(i=e.halfedges).length)for(var i,o,u,a=e.site,c=-1,s=n[i[o-1]],f=s.left===a?s.right:s.left;++c=a)return null;var c=t-i.site[0],s=n-i.site[1],f=c*c+s*s;do{i=o.cells[r=u],u=null,i.halfedges.forEach(function(e){var r=o.edges[e],a=r.left;if(a!==i.site&&a||(a=r.right)){var c=t-a[0],s=n-a[1],l=c*c+s*s;lt?1:n>=t?0:NaN},t.deviation=u,t.extent=a,t.histogram=function(){function t(t){var i,o,u=t.length,a=new Array(u);for(i=0;il;)h.pop(),--d;var v,g=new Array(d+1);for(i=0;i<=d;++i)(v=g[i]=[]).x0=i>0?h[i-1]:s,v.x1=i=e)for(r=e;++or&&(r=e)}else for(;++o=e)for(r=e;++or&&(r=e);return r},t.mean=function(t,n){var e,r=t.length,o=r,u=-1,a=0;if(null==n)for(;++u=o.length)return null!=e&&n.sort(e),null!=r?r(n):n;for(var c,s,f,l=-1,h=n.length,p=o[i++],d=se(),v=u();++lo.length)return t;var i,a=u[e-1];return null!=r&&e>=o.length?i=t.entries():(i=[],t.each(function(t,r){i.push({key:r,values:n(t,e)})})),null!=a?i.sort(function(t,n){return a(t.key,n.key)}):i}var e,r,i,o=[],u=[];return i={object:function(n){return t(n,0,fe,le)},map:function(n){return t(n,0,he,pe)},entries:function(e){return n(t(e,0,he,pe),0)},key:function(t){return o.push(t),i},sortKeys:function(t){return u[o.length-1]=t,i},sortValues:function(t){return e=t,i},rollup:function(t){return r=t,i}}},t.set=ve,t.map=se,t.keys=function(t){var n=[];for(var e in t)n.push(e);return n},t.values=function(t){var n=[];for(var e in t)n.push(t[e]);return n},t.entries=function(t){var n=[];for(var e in t)n.push({key:e,value:t[e]});return n},t.color=Et,t.rgb=Pt,t.hsl=qt,t.lab=Ft,t.hcl=Xt,t.cubehelix=$t,t.dispatch=N,t.drag=function(){function n(t){t.on("mousedown.drag",e).filter(g).on("touchstart.drag",o).on("touchmove.drag",u).on("touchend.drag touchcancel.drag",a).style("touch-action","none").style("-webkit-tap-highlight-color","rgba(0,0,0,0)")}function e(){if(!h&&p.apply(this,arguments)){var n=c("mouse",d.apply(this,arguments),pt,this,arguments);n&&(ct(t.event.view).on("mousemove.drag",r,!0).on("mouseup.drag",i,!0),_t(t.event.view),vt(),l=!1,s=t.event.clientX,f=t.event.clientY,n("start"))}}function r(){if(gt(),!l){var n=t.event.clientX-s,e=t.event.clientY-f;l=n*n+e*e>x}_.mouse("drag")}function i(){ct(t.event.view).on("mousemove.drag mouseup.drag",null),yt(t.event.view,l),gt(),_.mouse("end")}function o(){if(p.apply(this,arguments)){var n,e,r=t.event.changedTouches,i=d.apply(this,arguments),o=r.length;for(n=0;nc+p||is+p||or.index){var d=c-a.x-a.vx,v=s-a.y-a.vy,g=d*d+v*v;gt.r&&(t.r=t[n].r)}function r(){if(i){var n,e,r=i.length;for(o=new Array(r),n=0;n=f)){(t.data!==o||t.next)&&(0===i&&(i=me(),p+=i*i),0===c&&(c=me(),p+=c*c),p1?(null==n?l.remove(t):l.set(t,i(n)),o):l.get(t)},find:function(n,e,r){var i,o,u,a,c,s=0,f=t.length;for(null==r?r=1/0:r*=r,s=0;s1?(p.on(t,n),o):p.on(t)}}},t.forceX=function(t){function n(t){for(var n,e=0,u=r.length;emr(r[0],r[1])&&(r[1]=i[1]),mr(i[0],r[1])>mr(r[0],r[1])&&(r[0]=i[0])):o.push(r=i);for(u=-1/0,n=0,r=o[e=o.length-1];n<=e;r=i,++n)i=o[n],(a=mr(r[1],i[0]))>u&&(u=a,Gh=i[0],Jh=r[1])}return ip=op=null,Gh===1/0||Qh===1/0?[[NaN,NaN],[NaN,NaN]]:[[Gh,Qh],[Jh,Kh]]},t.geoCentroid=function(t){up=ap=cp=sp=fp=lp=hp=pp=dp=vp=gp=0,tr(t,Gp);var n=dp,e=vp,r=gp,i=n*n+e*e+r*r;return i=.12&&i<.234&&r>=-.425&&r<-.214?s:i>=.166&&i<.234&&r>=-.214&&r<-.115?f:c).invert(t)},t.stream=function(t){return e&&r===t?e:e=function(t){var n=t.length;return{point:function(e,r){for(var i=-1;++i2?t[2]+90:90]):(t=e(),[t[0],t[1],t[2]-90])},e([0,0,90]).scale(159.155)},t.geoTransverseMercatorRaw=oo,t.geoRotation=Fr,t.geoStream=tr,t.geoTransform=function(t){return{stream:Pi(t)}},t.cluster=function(){function t(t){var o,u=0;t.eachAfter(function(t){var e=t.children;e?(t.x=function(t){return t.reduce(ao,0)/t.length}(e),t.y=function(t){return 1+t.reduce(co,0)}(e)):(t.x=o?u+=n(t,o):0,t.y=0,o=t)});var a=function(t){for(var n;n=t.children;)t=n[0];return t}(t),c=function(t){for(var n;n=t.children;)t=n[n.length-1];return t}(t),s=a.x-n(a,c)/2,f=c.x+n(c,a)/2;return t.eachAfter(i?function(n){n.x=(n.x-t.x)*e,n.y=(t.y-n.y)*r}:function(n){n.x=(n.x-s)/(f-s)*e,n.y=(1-(t.y?n.y/t.y:1))*r})}var n=uo,e=1,r=1,i=!1;return t.separation=function(e){return arguments.length?(n=e,t):n},t.size=function(n){return arguments.length?(i=!1,e=+n[0],r=+n[1],t):i?null:[e,r]},t.nodeSize=function(n){return arguments.length?(i=!0,e=+n[0],r=+n[1],t):i?[e,r]:null},t},t.hierarchy=fo,t.pack=function(){function t(t){return t.x=e/2,t.y=r/2,n?t.eachBefore(zo(n)).eachAfter(Po(i,.5)).eachBefore(Ro(1)):t.eachBefore(zo(Co)).eachAfter(Po(Eo,1)).eachAfter(Po(i,t.r/Math.min(e,r))).eachBefore(Ro(Math.min(e,r)/(2*t.r))),t}var n=null,e=1,r=1,i=Eo;return t.radius=function(e){return arguments.length?(n=function(t){return null==t?null:So(t)}(e),t):n},t.size=function(n){return arguments.length?(e=+n[0],r=+n[1],t):[e,r]},t.padding=function(n){return arguments.length?(i="function"==typeof n?n:Ao(+n),t):i},t},t.packSiblings=function(t){return ko(t),t},t.packEnclose=go,t.partition=function(){function t(t){var o=t.height+1;return t.x0=t.y0=r,t.x1=n,t.y1=e/o,t.eachBefore(function(t,n){return function(e){e.children&&qo(e,e.x0,t*(e.depth+1)/n,e.x1,t*(e.depth+2)/n);var i=e.x0,o=e.y0,u=e.x1-r,a=e.y1-r;u0)throw new Error("cycle");return o}var n=Do,e=Uo;return t.id=function(e){return arguments.length?(n=So(e),t):n},t.parentId=function(n){return arguments.length?(e=So(n),t):e},t},t.tree=function(){function t(t){var c=function(t){for(var n,e,r,i,o,u=new Ho(t,0),a=[u];n=a.pop();)if(r=n._.children)for(n.children=new Array(o=r.length),i=o-1;i>=0;--i)a.push(e=n.children[i]=new Ho(r[i],i)),e.parent=n;return(u.parent=new Ho(null,0)).children=[u],u}(t);if(c.eachAfter(n),c.parent.m=-c.z,c.eachBefore(e),a)t.eachBefore(r);else{var s=t,f=t,l=t;t.eachBefore(function(t){t.xf.x&&(f=t),t.depth>l.depth&&(l=t)});var h=s===f?1:i(s,f)/2,p=h-s.x,d=o/(f.x+h+p),v=u/(l.depth||1);t.eachBefore(function(t){t.x=(t.x+p)*d,t.y=t.depth*v})}return t}function n(t){var n=t.children,e=t.parent.children,r=t.i?e[t.i-1]:null;if(n){(function(t){for(var n,e=0,r=0,i=t.children,o=i.length;--o>=0;)(n=i[o]).z+=e,n.m+=e,e+=n.s+(r+=n.c)})(t);var o=(n[0].z+n[n.length-1].z)/2;r?(t.z=r.z+i(t._,r._),t.m=t.z-o):t.z=o}else r&&(t.z=r.z+i(t._,r._));t.parent.A=function(t,n,e){if(n){for(var r,o=t,u=t,a=n,c=o.parent.children[0],s=o.m,f=u.m,l=a.m,h=c.m;a=Io(a),o=Fo(o),a&&o;)c=Fo(c),(u=Io(u)).a=t,(r=a.z+l-o.z-s+i(a._,o._))>0&&(Yo(Bo(a,t,e),t,r),s+=r,f+=r),l+=a.m,s+=o.m,h+=c.m,f+=u.m;a&&!Io(u)&&(u.t=a,u.m+=l-f),o&&!Fo(c)&&(c.t=o,c.m+=s-h,e=t)}return e}(t,r,t.parent.A||e[0])}function e(t){t._.x=t.z+t.parent.m,t.m+=t.parent.m}function r(t){t.x*=o,t.y=t.depth*u}var i=Oo,o=1,u=1,a=null;return t.separation=function(n){return arguments.length?(i=n,t):i},t.size=function(n){return arguments.length?(a=!1,o=+n[0],u=+n[1],t):a?null:[o,u]},t.nodeSize=function(n){return arguments.length?(a=!0,o=+n[0],u=+n[1],t):a?[o,u]:null},t},t.treemap=function(){function t(t){return t.x0=t.y0=0,t.x1=i,t.y1=o,t.eachBefore(n),u=[0],r&&t.eachBefore(Lo),t}function n(t){var n=u[t.depth],r=t.x0+n,i=t.y0+n,o=t.x1-n,h=t.y1-n;o=n-1){var s=c[t];return s.x0=r,s.y0=i,s.x1=u,void(s.y1=a)}for(var l=f[t],h=e/2+l,p=t+1,d=n-1;p>>1;f[v]a-i){var y=(r*_+u*g)/e;o(t,p,g,r,i,y,a),o(p,n,_,y,i,u,a)}else{var m=(i*_+a*g)/e;o(t,p,g,r,i,u,m),o(p,n,_,r,m,u,a)}}var u,a,c=t.children,s=c.length,f=new Array(s+1);for(f[0]=a=u=0;u=0;--n)s.push(t[r[o[n]][2]]);for(n=+a;na!=s>a&&u<(c-e)*(a-r)/(s-r)+e&&(f=!f),c=e,s=r;return f},t.polygonLength=function(t){for(var n,e,r=-1,i=t.length,o=t[i-1],u=o[0],a=o[1],c=0;++r1)&&(t-=Math.floor(t));var n=Math.abs(t-.5);return jg.h=360*t-100,jg.s=1.5-1.5*n,jg.l=.8-.9*n,jg+""},t.interpolateWarm=Bg,t.interpolateCool=Hg,t.interpolateViridis=Xg,t.interpolateMagma=Vg,t.interpolateInferno=$g,t.interpolatePlasma=Wg,t.scaleSequential=Za,t.create=function(t){return ct(A(t).call(document.documentElement))},t.creator=A,t.local=st,t.matcher=of,t.mouse=pt,t.namespace=E,t.namespaces=tf,t.clientPoint=ht,t.select=ct,t.selectAll=function(t){return"string"==typeof t?new ut([document.querySelectorAll(t)],[document.documentElement]):new ut([null==t?[]:t],cf)},t.selection=at,t.selector=z,t.selectorAll=R,t.style=I,t.touch=dt,t.touches=function(t,n){null==n&&(n=lt().touches);for(var e=0,r=n?n.length:0,i=new Array(r);eh;if(c||(c=t=ee()),le_)if(d>o_-e_)c.moveTo(l*Qg(h),l*t_(h)),c.arc(0,0,l,h,p,!v),f>e_&&(c.moveTo(f*Qg(p),f*t_(p)),c.arc(0,0,f,p,h,v));else{var g,_,y=h,m=p,x=h,b=p,w=d,M=d,T=a.apply(this,arguments)/2,N=T>e_&&(i?+i.apply(this,arguments):n_(f*f+l*l)),k=Kg(Zg(l-f)/2,+r.apply(this,arguments)),S=k,E=k;if(N>e_){var A=Qa(N/f*t_(T)),C=Qa(N/l*t_(T));(w-=2*A)>e_?(A*=v?1:-1,x+=A,b-=A):(w=0,x=b=(h+p)/2),(M-=2*C)>e_?(C*=v?1:-1,y+=C,m-=C):(M=0,y=m=(h+p)/2)}var z=l*Qg(y),P=l*t_(y),R=f*Qg(b),L=f*t_(b);if(k>e_){var q=l*Qg(m),D=l*t_(m),U=f*Qg(x),O=f*t_(x);if(de_?function(t,n,e,r,i,o,u,a){var c=e-t,s=r-n,f=u-i,l=a-o,h=(f*(n-o)-l*(t-i))/(l*c-f*s);return[t+h*c,n+h*s]}(z,P,U,O,q,D,R,L):[R,L],I=z-F[0],Y=P-F[1],B=q-F[0],H=D-F[1],j=1/t_(function(t){return t>1?0:t<-1?r_:Math.acos(t)}((I*B+Y*H)/(n_(I*I+Y*Y)*n_(B*B+H*H)))/2),X=n_(F[0]*F[0]+F[1]*F[1]);S=Kg(k,(f-X)/(j-1)),E=Kg(k,(l-X)/(j+1))}}M>e_?E>e_?(g=rc(U,O,z,P,l,E,v),_=rc(q,D,R,L,l,E,v),c.moveTo(g.cx+g.x01,g.cy+g.y01),Ee_&&w>e_?S>e_?(g=rc(R,L,q,D,f,-S,v),_=rc(z,P,U,O,f,-S,v),c.lineTo(g.cx+g.x01,g.cy+g.y01),S0&&(p+=l);for(null!=e?d.sort(function(t,n){return e(v[t],v[n])}):null!=r&&d.sort(function(n,e){return r(t[n],t[e])}),a=0,s=p?(_-h*m)/p:0;a0?l*s:0)+m,v[c]={data:t[c],index:a,value:l,startAngle:g,endAngle:f,padAngle:y};return v}var n=lc,e=fc,r=null,i=Ga(0),o=Ga(o_),u=Ga(0);return t.value=function(e){return arguments.length?(n="function"==typeof e?e:Ga(+e),t):n},t.sortValues=function(n){return arguments.length?(e=n,r=null,t):e},t.sort=function(n){return arguments.length?(r=n,e=null,t):r},t.startAngle=function(n){return arguments.length?(i="function"==typeof n?n:Ga(+n),t):i},t.endAngle=function(n){return arguments.length?(o="function"==typeof n?n:Ga(+n),t):o},t.padAngle=function(n){return arguments.length?(u="function"==typeof n?n:Ga(+n),t):u},t},t.areaRadial=gc,t.radialArea=gc,t.lineRadial=vc,t.radialLine=vc,t.pointRadial=_c,t.linkHorizontal=function(){return xc(bc)},t.linkVertical=function(){return xc(wc)},t.linkRadial=function(){var t=xc(Mc);return t.angle=t.x,delete t.x,t.radius=t.y,delete t.y,t},t.symbol=function(){function t(){var t;if(r||(r=t=ee()),n.apply(this,arguments).draw(r,+e.apply(this,arguments)),t)return r=null,t+""||null}var n=Ga(c_),e=Ga(64),r=null;return t.type=function(e){return arguments.length?(n="function"==typeof e?e:Ga(e),t):n},t.size=function(n){return arguments.length?(e="function"==typeof n?n:Ga(+n),t):e},t.context=function(n){return arguments.length?(r=null==n?null:n,t):r},t},t.symbols=T_,t.symbolCircle=c_,t.symbolCross=s_,t.symbolDiamond=h_,t.symbolSquare=__,t.symbolStar=g_,t.symbolTriangle=m_,t.symbolWye=M_,t.curveBasisClosed=function(t){return new Sc(t)},t.curveBasisOpen=function(t){return new Ec(t)},t.curveBasis=function(t){return new kc(t)},t.curveBundle=N_,t.curveCardinalClosed=S_,t.curveCardinalOpen=E_,t.curveCardinal=k_,t.curveCatmullRomClosed=C_,t.curveCatmullRomOpen=z_,t.curveCatmullRom=A_,t.curveLinearClosed=function(t){return new Oc(t)},t.curveLinear=oc,t.curveMonotoneX=function(t){return new Hc(t)},t.curveMonotoneY=function(t){return new jc(t)},t.curveNatural=function(t){return new Vc(t)},t.curveStep=function(t){return new Wc(t,.5)},t.curveStepAfter=function(t){return new Wc(t,1)},t.curveStepBefore=function(t){return new Wc(t,0)},t.stack=function(){function t(t){var o,u,a=n.apply(this,arguments),c=t.length,s=a.length,f=new Array(s);for(o=0;o0){for(var e,r,i,o=0,u=t[0].length;o1)for(var e,r,i,o,u,a,c=0,s=t[n[0]].length;c=0?(r[0]=o,r[1]=o+=i):i<0?(r[1]=u,r[0]=u+=i):r[0]=o},t.stackOffsetNone=Zc,t.stackOffsetSilhouette=function(t,n){if((e=t.length)>0){for(var e,r=0,i=t[n[0]],o=i.length;r0&&(r=(e=t[n[0]]).length)>0){for(var e,r,i,o=0,u=1;uxl&&e.name===n)return new qn([[t]],Jl,n,+r)}return null},t.interrupt=Pn,t.voronoi=function(){function t(t){return new Ns(t.map(function(r,i){var o=[Math.round(n(r,i,t)/F_)*F_,Math.round(e(r,i,t)/F_)*F_];return o.index=i,o.data=r,o}),r)}var n=ns,e=es,r=null;return t.polygons=function(n){return t(n).polygons()},t.links=function(n){return t(n).links()},t.triangles=function(n){return t(n).triangles()},t.x=function(e){return arguments.length?(n="function"==typeof e?e:ts(+e),t):n},t.y=function(n){return arguments.length?(e="function"==typeof n?n:ts(+n),t):e},t.extent=function(n){return arguments.length?(r=null==n?null:[[+n[0][0],+n[0][1]],[+n[1][0],+n[1][1]]],t):r&&[[r[0][0],r[0][1]],[r[1][0],r[1][1]]]},t.size=function(n){return arguments.length?(r=null==n?null:[[0,0],[+n[0],+n[1]]],t):r&&[r[1][0]-r[0][0],r[1][1]-r[0][1]]},t},t.zoom=function(){function n(t){t.property("__zoom",Rs).on("wheel.zoom",c).on("mousedown.zoom",s).on("dblclick.zoom",f).filter(x).on("touchstart.zoom",l).on("touchmove.zoom",h).on("touchend.zoom touchcancel.zoom",p).style("touch-action","none").style("-webkit-tap-highlight-color","rgba(0,0,0,0)")}function e(t,n){return(n=Math.max(b[0],Math.min(b[1],n)))===t.k?t:new Ss(n,t.x,t.y)}function r(t,n,e){var r=n[0]-e[0]*t.k,i=n[1]-e[1]*t.k;return r===t.x&&i===t.y?t:new Ss(t.k,r,i)}function i(t){return[(+t[0][0]+ +t[1][0])/2,(+t[0][1]+ +t[1][1])/2]}function o(t,n,e){t.on("start.zoom",function(){u(this,arguments).start()}).on("interrupt.zoom end.zoom",function(){u(this,arguments).end()}).tween("zoom",function(){var t=arguments,r=u(this,t),o=_.apply(this,t),a=e||i(o),c=Math.max(o[1][0]-o[0][0],o[1][1]-o[0][1]),s=this.__zoom,f="function"==typeof n?n.apply(this,t):n,l=T(s.invert(a).concat(c/s.k),f.invert(a).concat(c/f.k));return function(t){if(1===t)t=f;else{var n=l(t),e=c/n[2];t=new Ss(e,a[0]-n[0]*e,a[1]-n[1]*e)}r.zoom(null,t)}})}function u(t,n){for(var e,r=0,i=k.length;rC}n.zoom("mouse",y(r(n.that.__zoom,n.mouse[0]=pt(n.that),n.mouse[1]),n.extent,w))},!0).on("mouseup.zoom",function(){e.on("mousemove.zoom mouseup.zoom",null),yt(t.event.view,n.moved),Cs(),n.end()},!0),i=pt(this),o=t.event.clientX,a=t.event.clientY;_t(t.event.view),As(),n.mouse=[i,this.__zoom.invert(i)],Pn(this),n.start()}}function f(){if(g.apply(this,arguments)){var i=this.__zoom,u=pt(this),a=i.invert(u),c=i.k*(t.event.shiftKey?.5:2),s=y(r(e(i,c),u,a),_.apply(this,arguments),w);Cs(),M>0?ct(this).transition().duration(M).call(o,s,u):ct(this).call(n.transform,s)}}function l(){if(g.apply(this,arguments)){var n,e,r,i,o=u(this,arguments),a=t.event.changedTouches,c=a.length;for(As(),e=0;e 0; --i) { + entry = buckets[i].dequeue(); + if (entry) { + results = results.concat(removeNode(g, buckets, zeroIdx, entry, true)); + break; + } + } + } + } + + return results; +} + +function removeNode(g, buckets, zeroIdx, entry, collectPredecessors) { + var results = collectPredecessors ? [] : undefined; + + _.each(g.inEdges(entry.v), function(edge) { + var weight = g.edge(edge), + uEntry = g.node(edge.v); + + if (collectPredecessors) { + results.push({ v: edge.v, w: edge.w }); + } + + uEntry.out -= weight; + assignBucket(buckets, zeroIdx, uEntry); + }); + + _.each(g.outEdges(entry.v), function(edge) { + var weight = g.edge(edge), + w = edge.w, + wEntry = g.node(w); + wEntry["in"] -= weight; + assignBucket(buckets, zeroIdx, wEntry); + }); + + g.removeNode(entry.v); + + return results; +} + +function buildState(g, weightFn) { + var fasGraph = new Graph(), + maxIn = 0, + maxOut = 0; + + _.each(g.nodes(), function(v) { + fasGraph.setNode(v, { v: v, "in": 0, out: 0 }); + }); + + // Aggregate weights on nodes, but also sum the weights across multi-edges + // into a single edge for the fasGraph. + _.each(g.edges(), function(e) { + var prevWeight = fasGraph.edge(e.v, e.w) || 0, + weight = weightFn(e), + edgeWeight = prevWeight + weight; + fasGraph.setEdge(e.v, e.w, edgeWeight); + maxOut = Math.max(maxOut, fasGraph.node(e.v).out += weight); + maxIn = Math.max(maxIn, fasGraph.node(e.w)["in"] += weight); + }); + + var buckets = _.range(maxOut + maxIn + 3).map(function() { return new List(); }); + var zeroIdx = maxIn + 1; + + _.each(fasGraph.nodes(), function(v) { + assignBucket(buckets, zeroIdx, fasGraph.node(v)); + }); + + return { graph: fasGraph, buckets: buckets, zeroIdx: zeroIdx }; +} + +function assignBucket(buckets, zeroIdx, entry) { + if (!entry.out) { + buckets[0].enqueue(entry); + } else if (!entry["in"]) { + buckets[buckets.length - 1].enqueue(entry); + } else { + buckets[entry.out - entry["in"] + zeroIdx].enqueue(entry); + } +} + +},{"./data/list":5,"./graphlib":7,"./lodash":10}],9:[function(require,module,exports){ +"use strict"; + +var _ = require("./lodash"), + acyclic = require("./acyclic"), + normalize = require("./normalize"), + rank = require("./rank"), + normalizeRanks = require("./util").normalizeRanks, + parentDummyChains = require("./parent-dummy-chains"), + removeEmptyRanks = require("./util").removeEmptyRanks, + nestingGraph = require("./nesting-graph"), + addBorderSegments = require("./add-border-segments"), + coordinateSystem = require("./coordinate-system"), + order = require("./order"), + position = require("./position"), + util = require("./util"), + Graph = require("./graphlib").Graph; + +module.exports = layout; + +function layout(g, opts) { + var time = opts && opts.debugTiming ? util.time : util.notime; + time("layout", function() { + var layoutGraph = time(" buildLayoutGraph", + function() { return buildLayoutGraph(g); }); + time(" runLayout", function() { runLayout(layoutGraph, time); }); + time(" updateInputGraph", function() { updateInputGraph(g, layoutGraph); }); + }); +} + +function runLayout(g, time) { + time(" makeSpaceForEdgeLabels", function() { makeSpaceForEdgeLabels(g); }); + time(" removeSelfEdges", function() { removeSelfEdges(g); }); + time(" acyclic", function() { acyclic.run(g); }); + time(" nestingGraph.run", function() { nestingGraph.run(g); }); + time(" rank", function() { rank(util.asNonCompoundGraph(g)); }); + time(" injectEdgeLabelProxies", function() { injectEdgeLabelProxies(g); }); + time(" removeEmptyRanks", function() { removeEmptyRanks(g); }); + time(" nestingGraph.cleanup", function() { nestingGraph.cleanup(g); }); + time(" normalizeRanks", function() { normalizeRanks(g); }); + time(" assignRankMinMax", function() { assignRankMinMax(g); }); + time(" removeEdgeLabelProxies", function() { removeEdgeLabelProxies(g); }); + time(" normalize.run", function() { normalize.run(g); }); + time(" parentDummyChains", function() { parentDummyChains(g); }); + time(" addBorderSegments", function() { addBorderSegments(g); }); + time(" order", function() { order(g); }); + time(" insertSelfEdges", function() { insertSelfEdges(g); }); + time(" adjustCoordinateSystem", function() { coordinateSystem.adjust(g); }); + time(" position", function() { position(g); }); + time(" positionSelfEdges", function() { positionSelfEdges(g); }); + time(" removeBorderNodes", function() { removeBorderNodes(g); }); + time(" normalize.undo", function() { normalize.undo(g); }); + time(" fixupEdgeLabelCoords", function() { fixupEdgeLabelCoords(g); }); + time(" undoCoordinateSystem", function() { coordinateSystem.undo(g); }); + time(" translateGraph", function() { translateGraph(g); }); + time(" assignNodeIntersects", function() { assignNodeIntersects(g); }); + time(" reversePoints", function() { reversePointsForReversedEdges(g); }); + time(" acyclic.undo", function() { acyclic.undo(g); }); +} + +/* + * Copies final layout information from the layout graph back to the input + * graph. This process only copies whitelisted attributes from the layout graph + * to the input graph, so it serves as a good place to determine what + * attributes can influence layout. + */ +function updateInputGraph(inputGraph, layoutGraph) { + _.each(inputGraph.nodes(), function(v) { + var inputLabel = inputGraph.node(v), + layoutLabel = layoutGraph.node(v); + + if (inputLabel) { + inputLabel.x = layoutLabel.x; + inputLabel.y = layoutLabel.y; + + if (layoutGraph.children(v).length) { + inputLabel.width = layoutLabel.width; + inputLabel.height = layoutLabel.height; + } + } + }); + + _.each(inputGraph.edges(), function(e) { + var inputLabel = inputGraph.edge(e), + layoutLabel = layoutGraph.edge(e); + + inputLabel.points = layoutLabel.points; + if (_.has(layoutLabel, "x")) { + inputLabel.x = layoutLabel.x; + inputLabel.y = layoutLabel.y; + } + }); + + inputGraph.graph().width = layoutGraph.graph().width; + inputGraph.graph().height = layoutGraph.graph().height; +} + +var graphNumAttrs = ["nodesep", "edgesep", "ranksep", "marginx", "marginy"], + graphDefaults = { ranksep: 50, edgesep: 20, nodesep: 50, rankdir: "tb" }, + graphAttrs = ["acyclicer", "ranker", "rankdir", "align"], + nodeNumAttrs = ["width", "height"], + nodeDefaults = { width: 0, height: 0 }, + edgeNumAttrs = ["minlen", "weight", "width", "height", "labeloffset"], + edgeDefaults = { + minlen: 1, weight: 1, width: 0, height: 0, + labeloffset: 10, labelpos: "r" + }, + edgeAttrs = ["labelpos"]; + +/* + * Constructs a new graph from the input graph, which can be used for layout. + * This process copies only whitelisted attributes from the input graph to the + * layout graph. Thus this function serves as a good place to determine what + * attributes can influence layout. + */ +function buildLayoutGraph(inputGraph) { + var g = new Graph({ multigraph: true, compound: true }), + graph = canonicalize(inputGraph.graph()); + + g.setGraph(_.merge({}, + graphDefaults, + selectNumberAttrs(graph, graphNumAttrs), + _.pick(graph, graphAttrs))); + + _.each(inputGraph.nodes(), function(v) { + var node = canonicalize(inputGraph.node(v)); + g.setNode(v, _.defaults(selectNumberAttrs(node, nodeNumAttrs), nodeDefaults)); + g.setParent(v, inputGraph.parent(v)); + }); + + _.each(inputGraph.edges(), function(e) { + var edge = canonicalize(inputGraph.edge(e)); + g.setEdge(e, _.merge({}, + edgeDefaults, + selectNumberAttrs(edge, edgeNumAttrs), + _.pick(edge, edgeAttrs))); + }); + + return g; +} + +/* + * This idea comes from the Gansner paper: to account for edge labels in our + * layout we split each rank in half by doubling minlen and halving ranksep. + * Then we can place labels at these mid-points between nodes. + * + * We also add some minimal padding to the width to push the label for the edge + * away from the edge itself a bit. + */ +function makeSpaceForEdgeLabels(g) { + var graph = g.graph(); + graph.ranksep /= 2; + _.each(g.edges(), function(e) { + var edge = g.edge(e); + edge.minlen *= 2; + if (edge.labelpos.toLowerCase() !== "c") { + if (graph.rankdir === "TB" || graph.rankdir === "BT") { + edge.width += edge.labeloffset; + } else { + edge.height += edge.labeloffset; + } + } + }); +} + +/* + * Creates temporary dummy nodes that capture the rank in which each edge's + * label is going to, if it has one of non-zero width and height. We do this + * so that we can safely remove empty ranks while preserving balance for the + * label's position. + */ +function injectEdgeLabelProxies(g) { + _.each(g.edges(), function(e) { + var edge = g.edge(e); + if (edge.width && edge.height) { + var v = g.node(e.v), + w = g.node(e.w), + label = { rank: (w.rank - v.rank) / 2 + v.rank, e: e }; + util.addDummyNode(g, "edge-proxy", label, "_ep"); + } + }); +} + +function assignRankMinMax(g) { + var maxRank = 0; + _.each(g.nodes(), function(v) { + var node = g.node(v); + if (node.borderTop) { + node.minRank = g.node(node.borderTop).rank; + node.maxRank = g.node(node.borderBottom).rank; + maxRank = _.max(maxRank, node.maxRank); + } + }); + g.graph().maxRank = maxRank; +} + +function removeEdgeLabelProxies(g) { + _.each(g.nodes(), function(v) { + var node = g.node(v); + if (node.dummy === "edge-proxy") { + g.edge(node.e).labelRank = node.rank; + g.removeNode(v); + } + }); +} + +function translateGraph(g) { + var minX = Number.POSITIVE_INFINITY, + maxX = 0, + minY = Number.POSITIVE_INFINITY, + maxY = 0, + graphLabel = g.graph(), + marginX = graphLabel.marginx || 0, + marginY = graphLabel.marginy || 0; + + function getExtremes(attrs) { + var x = attrs.x, + y = attrs.y, + w = attrs.width, + h = attrs.height; + minX = Math.min(minX, x - w / 2); + maxX = Math.max(maxX, x + w / 2); + minY = Math.min(minY, y - h / 2); + maxY = Math.max(maxY, y + h / 2); + } + + _.each(g.nodes(), function(v) { getExtremes(g.node(v)); }); + _.each(g.edges(), function(e) { + var edge = g.edge(e); + if (_.has(edge, "x")) { + getExtremes(edge); + } + }); + + minX -= marginX; + minY -= marginY; + + _.each(g.nodes(), function(v) { + var node = g.node(v); + node.x -= minX; + node.y -= minY; + }); + + _.each(g.edges(), function(e) { + var edge = g.edge(e); + _.each(edge.points, function(p) { + p.x -= minX; + p.y -= minY; + }); + if (_.has(edge, "x")) { edge.x -= minX; } + if (_.has(edge, "y")) { edge.y -= minY; } + }); + + graphLabel.width = maxX - minX + marginX; + graphLabel.height = maxY - minY + marginY; +} + +function assignNodeIntersects(g) { + _.each(g.edges(), function(e) { + var edge = g.edge(e), + nodeV = g.node(e.v), + nodeW = g.node(e.w), + p1, p2; + if (!edge.points) { + edge.points = []; + p1 = nodeW; + p2 = nodeV; + } else { + p1 = edge.points[0]; + p2 = edge.points[edge.points.length - 1]; + } + edge.points.unshift(util.intersectRect(nodeV, p1)); + edge.points.push(util.intersectRect(nodeW, p2)); + }); +} + +function fixupEdgeLabelCoords(g) { + _.each(g.edges(), function(e) { + var edge = g.edge(e); + if (_.has(edge, "x")) { + if (edge.labelpos === "l" || edge.labelpos === "r") { + edge.width -= edge.labeloffset; + } + switch (edge.labelpos) { + case "l": edge.x -= edge.width / 2 + edge.labeloffset; break; + case "r": edge.x += edge.width / 2 + edge.labeloffset; break; + } + } + }); +} + +function reversePointsForReversedEdges(g) { + _.each(g.edges(), function(e) { + var edge = g.edge(e); + if (edge.reversed) { + edge.points.reverse(); + } + }); +} + +function removeBorderNodes(g) { + _.each(g.nodes(), function(v) { + if (g.children(v).length) { + var node = g.node(v), + t = g.node(node.borderTop), + b = g.node(node.borderBottom), + l = g.node(_.last(node.borderLeft)), + r = g.node(_.last(node.borderRight)); + + node.width = Math.abs(r.x - l.x); + node.height = Math.abs(b.y - t.y); + node.x = l.x + node.width / 2; + node.y = t.y + node.height / 2; + } + }); + + _.each(g.nodes(), function(v) { + if (g.node(v).dummy === "border") { + g.removeNode(v); + } + }); +} + +function removeSelfEdges(g) { + _.each(g.edges(), function(e) { + if (e.v === e.w) { + var node = g.node(e.v); + if (!node.selfEdges) { + node.selfEdges = []; + } + node.selfEdges.push({ e: e, label: g.edge(e) }); + g.removeEdge(e); + } + }); +} + +function insertSelfEdges(g) { + var layers = util.buildLayerMatrix(g); + _.each(layers, function(layer) { + var orderShift = 0; + _.each(layer, function(v, i) { + var node = g.node(v); + node.order = i + orderShift; + _.each(node.selfEdges, function(selfEdge) { + util.addDummyNode(g, "selfedge", { + width: selfEdge.label.width, + height: selfEdge.label.height, + rank: node.rank, + order: i + (++orderShift), + e: selfEdge.e, + label: selfEdge.label + }, "_se"); + }); + delete node.selfEdges; + }); + }); +} + +function positionSelfEdges(g) { + _.each(g.nodes(), function(v) { + var node = g.node(v); + if (node.dummy === "selfedge") { + var selfNode = g.node(node.e.v), + x = selfNode.x + selfNode.width / 2, + y = selfNode.y, + dx = node.x - x, + dy = selfNode.height / 2; + g.setEdge(node.e, node.label); + g.removeNode(v); + node.label.points = [ + { x: x + 2 * dx / 3, y: y - dy }, + { x: x + 5 * dx / 6, y: y - dy }, + { x: x + dx , y: y }, + { x: x + 5 * dx / 6, y: y + dy }, + { x: x + 2 * dx / 3, y: y + dy }, + ]; + node.label.x = node.x; + node.label.y = node.y; + } + }); +} + +function selectNumberAttrs(obj, attrs) { + return _.mapValues(_.pick(obj, attrs), Number); +} + +function canonicalize(attrs) { + var newAttrs = {}; + _.each(attrs, function(v, k) { + newAttrs[k.toLowerCase()] = v; + }); + return newAttrs; +} + +},{"./acyclic":2,"./add-border-segments":3,"./coordinate-system":4,"./graphlib":7,"./lodash":10,"./nesting-graph":11,"./normalize":12,"./order":17,"./parent-dummy-chains":22,"./position":24,"./rank":26,"./util":29}],10:[function(require,module,exports){ +/* global window */ + +var lodash; + +if (typeof require === "function") { + try { + lodash = require("lodash"); + } catch (e) {} +} + +if (!lodash) { + lodash = window._; +} + +module.exports = lodash; + +},{"lodash":51}],11:[function(require,module,exports){ +var _ = require("./lodash"), + util = require("./util"); + +module.exports = { + run: run, + cleanup: cleanup +}; + +/* + * A nesting graph creates dummy nodes for the tops and bottoms of subgraphs, + * adds appropriate edges to ensure that all cluster nodes are placed between + * these boundries, and ensures that the graph is connected. + * + * In addition we ensure, through the use of the minlen property, that nodes + * and subgraph border nodes to not end up on the same rank. + * + * Preconditions: + * + * 1. Input graph is a DAG + * 2. Nodes in the input graph has a minlen attribute + * + * Postconditions: + * + * 1. Input graph is connected. + * 2. Dummy nodes are added for the tops and bottoms of subgraphs. + * 3. The minlen attribute for nodes is adjusted to ensure nodes do not + * get placed on the same rank as subgraph border nodes. + * + * The nesting graph idea comes from Sander, "Layout of Compound Directed + * Graphs." + */ +function run(g) { + var root = util.addDummyNode(g, "root", {}, "_root"), + depths = treeDepths(g), + height = _.max(depths) - 1, + nodeSep = 2 * height + 1; + + g.graph().nestingRoot = root; + + // Multiply minlen by nodeSep to align nodes on non-border ranks. + _.each(g.edges(), function(e) { g.edge(e).minlen *= nodeSep; }); + + // Calculate a weight that is sufficient to keep subgraphs vertically compact + var weight = sumWeights(g) + 1; + + // Create border nodes and link them up + _.each(g.children(), function(child) { + dfs(g, root, nodeSep, weight, height, depths, child); + }); + + // Save the multiplier for node layers for later removal of empty border + // layers. + g.graph().nodeRankFactor = nodeSep; +} + +function dfs(g, root, nodeSep, weight, height, depths, v) { + var children = g.children(v); + if (!children.length) { + if (v !== root) { + g.setEdge(root, v, { weight: 0, minlen: nodeSep }); + } + return; + } + + var top = util.addBorderNode(g, "_bt"), + bottom = util.addBorderNode(g, "_bb"), + label = g.node(v); + + g.setParent(top, v); + label.borderTop = top; + g.setParent(bottom, v); + label.borderBottom = bottom; + + _.each(children, function(child) { + dfs(g, root, nodeSep, weight, height, depths, child); + + var childNode = g.node(child), + childTop = childNode.borderTop ? childNode.borderTop : child, + childBottom = childNode.borderBottom ? childNode.borderBottom : child, + thisWeight = childNode.borderTop ? weight : 2 * weight, + minlen = childTop !== childBottom ? 1 : height - depths[v] + 1; + + g.setEdge(top, childTop, { + weight: thisWeight, + minlen: minlen, + nestingEdge: true + }); + + g.setEdge(childBottom, bottom, { + weight: thisWeight, + minlen: minlen, + nestingEdge: true + }); + }); + + if (!g.parent(v)) { + g.setEdge(root, top, { weight: 0, minlen: height + depths[v] }); + } +} + +function treeDepths(g) { + var depths = {}; + function dfs(v, depth) { + var children = g.children(v); + if (children && children.length) { + _.each(children, function(child) { + dfs(child, depth + 1); + }); + } + depths[v] = depth; + } + _.each(g.children(), function(v) { dfs(v, 1); }); + return depths; +} + +function sumWeights(g) { + return _.reduce(g.edges(), function(acc, e) { + return acc + g.edge(e).weight; + }, 0); +} + +function cleanup(g) { + var graphLabel = g.graph(); + g.removeNode(graphLabel.nestingRoot); + delete graphLabel.nestingRoot; + _.each(g.edges(), function(e) { + var edge = g.edge(e); + if (edge.nestingEdge) { + g.removeEdge(e); + } + }); +} + +},{"./lodash":10,"./util":29}],12:[function(require,module,exports){ +"use strict"; + +var _ = require("./lodash"), + util = require("./util"); + +module.exports = { + run: run, + undo: undo +}; + +/* + * Breaks any long edges in the graph into short segments that span 1 layer + * each. This operation is undoable with the denormalize function. + * + * Pre-conditions: + * + * 1. The input graph is a DAG. + * 2. Each node in the graph has a "rank" property. + * + * Post-condition: + * + * 1. All edges in the graph have a length of 1. + * 2. Dummy nodes are added where edges have been split into segments. + * 3. The graph is augmented with a "dummyChains" attribute which contains + * the first dummy in each chain of dummy nodes produced. + */ +function run(g) { + g.graph().dummyChains = []; + _.each(g.edges(), function(edge) { normalizeEdge(g, edge); }); +} + +function normalizeEdge(g, e) { + var v = e.v, + vRank = g.node(v).rank, + w = e.w, + wRank = g.node(w).rank, + name = e.name, + edgeLabel = g.edge(e), + labelRank = edgeLabel.labelRank; + + if (wRank === vRank + 1) return; + + g.removeEdge(e); + + var dummy, attrs, i; + for (i = 0, ++vRank; vRank < wRank; ++i, ++vRank) { + edgeLabel.points = []; + attrs = { + width: 0, height: 0, + edgeLabel: edgeLabel, edgeObj: e, + rank: vRank + }; + dummy = util.addDummyNode(g, "edge", attrs, "_d"); + if (vRank === labelRank) { + attrs.width = edgeLabel.width; + attrs.height = edgeLabel.height; + attrs.dummy = "edge-label"; + attrs.labelpos = edgeLabel.labelpos; + } + g.setEdge(v, dummy, { weight: edgeLabel.weight }, name); + if (i === 0) { + g.graph().dummyChains.push(dummy); + } + v = dummy; + } + + g.setEdge(v, w, { weight: edgeLabel.weight }, name); +} + +function undo(g) { + _.each(g.graph().dummyChains, function(v) { + var node = g.node(v), + origLabel = node.edgeLabel, + w; + g.setEdge(node.edgeObj, origLabel); + while (node.dummy) { + w = g.successors(v)[0]; + g.removeNode(v); + origLabel.points.push({ x: node.x, y: node.y }); + if (node.dummy === "edge-label") { + origLabel.x = node.x; + origLabel.y = node.y; + origLabel.width = node.width; + origLabel.height = node.height; + } + v = w; + node = g.node(v); + } + }); +} + +},{"./lodash":10,"./util":29}],13:[function(require,module,exports){ +var _ = require("../lodash"); + +module.exports = addSubgraphConstraints; + +function addSubgraphConstraints(g, cg, vs) { + var prev = {}, + rootPrev; + + _.each(vs, function(v) { + var child = g.parent(v), + parent, + prevChild; + while (child) { + parent = g.parent(child); + if (parent) { + prevChild = prev[parent]; + prev[parent] = child; + } else { + prevChild = rootPrev; + rootPrev = child; + } + if (prevChild && prevChild !== child) { + cg.setEdge(prevChild, child); + return; + } + child = parent; + } + }); + + /* + function dfs(v) { + var children = v ? g.children(v) : g.children(); + if (children.length) { + var min = Number.POSITIVE_INFINITY, + subgraphs = []; + _.each(children, function(child) { + var childMin = dfs(child); + if (g.children(child).length) { + subgraphs.push({ v: child, order: childMin }); + } + min = Math.min(min, childMin); + }); + _.reduce(_.sortBy(subgraphs, "order"), function(prev, curr) { + cg.setEdge(prev.v, curr.v); + return curr; + }); + return min; + } + return g.node(v).order; + } + dfs(undefined); + */ +} + +},{"../lodash":10}],14:[function(require,module,exports){ +var _ = require("../lodash"); + +module.exports = barycenter; + +function barycenter(g, movable) { + return _.map(movable, function(v) { + var inV = g.inEdges(v); + if (!inV.length) { + return { v: v }; + } else { + var result = _.reduce(inV, function(acc, e) { + var edge = g.edge(e), + nodeU = g.node(e.v); + return { + sum: acc.sum + (edge.weight * nodeU.order), + weight: acc.weight + edge.weight + }; + }, { sum: 0, weight: 0 }); + + return { + v: v, + barycenter: result.sum / result.weight, + weight: result.weight + }; + } + }); +} + + +},{"../lodash":10}],15:[function(require,module,exports){ +var _ = require("../lodash"), + Graph = require("../graphlib").Graph; + +module.exports = buildLayerGraph; + +/* + * Constructs a graph that can be used to sort a layer of nodes. The graph will + * contain all base and subgraph nodes from the request layer in their original + * hierarchy and any edges that are incident on these nodes and are of the type + * requested by the "relationship" parameter. + * + * Nodes from the requested rank that do not have parents are assigned a root + * node in the output graph, which is set in the root graph attribute. This + * makes it easy to walk the hierarchy of movable nodes during ordering. + * + * Pre-conditions: + * + * 1. Input graph is a DAG + * 2. Base nodes in the input graph have a rank attribute + * 3. Subgraph nodes in the input graph has minRank and maxRank attributes + * 4. Edges have an assigned weight + * + * Post-conditions: + * + * 1. Output graph has all nodes in the movable rank with preserved + * hierarchy. + * 2. Root nodes in the movable layer are made children of the node + * indicated by the root attribute of the graph. + * 3. Non-movable nodes incident on movable nodes, selected by the + * relationship parameter, are included in the graph (without hierarchy). + * 4. Edges incident on movable nodes, selected by the relationship + * parameter, are added to the output graph. + * 5. The weights for copied edges are aggregated as need, since the output + * graph is not a multi-graph. + */ +function buildLayerGraph(g, rank, relationship) { + var root = createRootNode(g), + result = new Graph({ compound: true }).setGraph({ root: root }) + .setDefaultNodeLabel(function(v) { return g.node(v); }); + + _.each(g.nodes(), function(v) { + var node = g.node(v), + parent = g.parent(v); + + if (node.rank === rank || node.minRank <= rank && rank <= node.maxRank) { + result.setNode(v); + result.setParent(v, parent || root); + + // This assumes we have only short edges! + _.each(g[relationship](v), function(e) { + var u = e.v === v ? e.w : e.v, + edge = result.edge(u, v), + weight = !_.isUndefined(edge) ? edge.weight : 0; + result.setEdge(u, v, { weight: g.edge(e).weight + weight }); + }); + + if (_.has(node, "minRank")) { + result.setNode(v, { + borderLeft: node.borderLeft[rank], + borderRight: node.borderRight[rank] + }); + } + } + }); + + return result; +} + +function createRootNode(g) { + var v; + while (g.hasNode((v = _.uniqueId("_root")))); + return v; +} + +},{"../graphlib":7,"../lodash":10}],16:[function(require,module,exports){ +"use strict"; + +var _ = require("../lodash"); + +module.exports = crossCount; + +/* + * A function that takes a layering (an array of layers, each with an array of + * ordererd nodes) and a graph and returns a weighted crossing count. + * + * Pre-conditions: + * + * 1. Input graph must be simple (not a multigraph), directed, and include + * only simple edges. + * 2. Edges in the input graph must have assigned weights. + * + * Post-conditions: + * + * 1. The graph and layering matrix are left unchanged. + * + * This algorithm is derived from Barth, et al., "Bilayer Cross Counting." + */ +function crossCount(g, layering) { + var cc = 0; + for (var i = 1; i < layering.length; ++i) { + cc += twoLayerCrossCount(g, layering[i-1], layering[i]); + } + return cc; +} + +function twoLayerCrossCount(g, northLayer, southLayer) { + // Sort all of the edges between the north and south layers by their position + // in the north layer and then the south. Map these edges to the position of + // their head in the south layer. + var southPos = _.zipObject(southLayer, + _.map(southLayer, function (v, i) { return i; })); + var southEntries = _.flatten(_.map(northLayer, function(v) { + return _.chain(g.outEdges(v)) + .map(function(e) { + return { pos: southPos[e.w], weight: g.edge(e).weight }; + }) + .sortBy("pos") + .value(); + }), true); + + // Build the accumulator tree + var firstIndex = 1; + while (firstIndex < southLayer.length) firstIndex <<= 1; + var treeSize = 2 * firstIndex - 1; + firstIndex -= 1; + var tree = _.map(new Array(treeSize), function() { return 0; }); + + // Calculate the weighted crossings + var cc = 0; + _.each(southEntries.forEach(function(entry) { + var index = entry.pos + firstIndex; + tree[index] += entry.weight; + var weightSum = 0; + while (index > 0) { + if (index % 2) { + weightSum += tree[index + 1]; + } + index = (index - 1) >> 1; + tree[index] += entry.weight; + } + cc += entry.weight * weightSum; + })); + + return cc; +} + +},{"../lodash":10}],17:[function(require,module,exports){ +"use strict"; + +var _ = require("../lodash"), + initOrder = require("./init-order"), + crossCount = require("./cross-count"), + sortSubgraph = require("./sort-subgraph"), + buildLayerGraph = require("./build-layer-graph"), + addSubgraphConstraints = require("./add-subgraph-constraints"), + Graph = require("../graphlib").Graph, + util = require("../util"); + +module.exports = order; + +/* + * Applies heuristics to minimize edge crossings in the graph and sets the best + * order solution as an order attribute on each node. + * + * Pre-conditions: + * + * 1. Graph must be DAG + * 2. Graph nodes must be objects with a "rank" attribute + * 3. Graph edges must have the "weight" attribute + * + * Post-conditions: + * + * 1. Graph nodes will have an "order" attribute based on the results of the + * algorithm. + */ +function order(g) { + var maxRank = util.maxRank(g), + downLayerGraphs = buildLayerGraphs(g, _.range(1, maxRank + 1), "inEdges"), + upLayerGraphs = buildLayerGraphs(g, _.range(maxRank - 1, -1, -1), "outEdges"); + + var layering = initOrder(g); + assignOrder(g, layering); + + var bestCC = Number.POSITIVE_INFINITY, + best; + + for (var i = 0, lastBest = 0; lastBest < 4; ++i, ++lastBest) { + sweepLayerGraphs(i % 2 ? downLayerGraphs : upLayerGraphs, i % 4 >= 2); + + layering = util.buildLayerMatrix(g); + var cc = crossCount(g, layering); + if (cc < bestCC) { + lastBest = 0; + best = _.cloneDeep(layering); + bestCC = cc; + } + } + + assignOrder(g, best); +} + +function buildLayerGraphs(g, ranks, relationship) { + return _.map(ranks, function(rank) { + return buildLayerGraph(g, rank, relationship); + }); +} + +function sweepLayerGraphs(layerGraphs, biasRight) { + var cg = new Graph(); + _.each(layerGraphs, function(lg) { + var root = lg.graph().root; + var sorted = sortSubgraph(lg, root, cg, biasRight); + _.each(sorted.vs, function(v, i) { + lg.node(v).order = i; + }); + addSubgraphConstraints(lg, cg, sorted.vs); + }); +} + +function assignOrder(g, layering) { + _.each(layering, function(layer) { + _.each(layer, function(v, i) { + g.node(v).order = i; + }); + }); +} + +},{"../graphlib":7,"../lodash":10,"../util":29,"./add-subgraph-constraints":13,"./build-layer-graph":15,"./cross-count":16,"./init-order":18,"./sort-subgraph":20}],18:[function(require,module,exports){ +"use strict"; + +var _ = require("../lodash"); + +module.exports = initOrder; + +/* + * Assigns an initial order value for each node by performing a DFS search + * starting from nodes in the first rank. Nodes are assigned an order in their + * rank as they are first visited. + * + * This approach comes from Gansner, et al., "A Technique for Drawing Directed + * Graphs." + * + * Returns a layering matrix with an array per layer and each layer sorted by + * the order of its nodes. + */ +function initOrder(g) { + var visited = {}, + simpleNodes = _.filter(g.nodes(), function(v) { + return !g.children(v).length; + }), + maxRank = _.max(_.map(simpleNodes, function(v) { return g.node(v).rank; })), + layers = _.map(_.range(maxRank + 1), function() { return []; }); + + function dfs(v) { + if (_.has(visited, v)) return; + visited[v] = true; + var node = g.node(v); + layers[node.rank].push(v); + _.each(g.successors(v), dfs); + } + + var orderedVs = _.sortBy(simpleNodes, function(v) { return g.node(v).rank; }); + _.each(orderedVs, dfs); + + return layers; +} + +},{"../lodash":10}],19:[function(require,module,exports){ +"use strict"; + +var _ = require("../lodash"); + +module.exports = resolveConflicts; + +/* + * Given a list of entries of the form {v, barycenter, weight} and a + * constraint graph this function will resolve any conflicts between the + * constraint graph and the barycenters for the entries. If the barycenters for + * an entry would violate a constraint in the constraint graph then we coalesce + * the nodes in the conflict into a new node that respects the contraint and + * aggregates barycenter and weight information. + * + * This implementation is based on the description in Forster, "A Fast and + * Simple Hueristic for Constrained Two-Level Crossing Reduction," thought it + * differs in some specific details. + * + * Pre-conditions: + * + * 1. Each entry has the form {v, barycenter, weight}, or if the node has + * no barycenter, then {v}. + * + * Returns: + * + * A new list of entries of the form {vs, i, barycenter, weight}. The list + * `vs` may either be a singleton or it may be an aggregation of nodes + * ordered such that they do not violate constraints from the constraint + * graph. The property `i` is the lowest original index of any of the + * elements in `vs`. + */ +function resolveConflicts(entries, cg) { + var mappedEntries = {}; + _.each(entries, function(entry, i) { + var tmp = mappedEntries[entry.v] = { + indegree: 0, + "in": [], + out: [], + vs: [entry.v], + i: i + }; + if (!_.isUndefined(entry.barycenter)) { + tmp.barycenter = entry.barycenter; + tmp.weight = entry.weight; + } + }); + + _.each(cg.edges(), function(e) { + var entryV = mappedEntries[e.v], + entryW = mappedEntries[e.w]; + if (!_.isUndefined(entryV) && !_.isUndefined(entryW)) { + entryW.indegree++; + entryV.out.push(mappedEntries[e.w]); + } + }); + + var sourceSet = _.filter(mappedEntries, function(entry) { + return !entry.indegree; + }); + + return doResolveConflicts(sourceSet); +} + +function doResolveConflicts(sourceSet) { + var entries = []; + + function handleIn(vEntry) { + return function(uEntry) { + if (uEntry.merged) { + return; + } + if (_.isUndefined(uEntry.barycenter) || + _.isUndefined(vEntry.barycenter) || + uEntry.barycenter >= vEntry.barycenter) { + mergeEntries(vEntry, uEntry); + } + }; + } + + function handleOut(vEntry) { + return function(wEntry) { + wEntry["in"].push(vEntry); + if (--wEntry.indegree === 0) { + sourceSet.push(wEntry); + } + }; + } + + while (sourceSet.length) { + var entry = sourceSet.pop(); + entries.push(entry); + _.each(entry["in"].reverse(), handleIn(entry)); + _.each(entry.out, handleOut(entry)); + } + + return _.chain(entries) + .filter(function(entry) { return !entry.merged; }) + .map(function(entry) { + return _.pick(entry, ["vs", "i", "barycenter", "weight"]); + }) + .value(); +} + +function mergeEntries(target, source) { + var sum = 0, + weight = 0; + + if (target.weight) { + sum += target.barycenter * target.weight; + weight += target.weight; + } + + if (source.weight) { + sum += source.barycenter * source.weight; + weight += source.weight; + } + + target.vs = source.vs.concat(target.vs); + target.barycenter = sum / weight; + target.weight = weight; + target.i = Math.min(source.i, target.i); + source.merged = true; +} + +},{"../lodash":10}],20:[function(require,module,exports){ +var _ = require("../lodash"), + barycenter = require("./barycenter"), + resolveConflicts = require("./resolve-conflicts"), + sort = require("./sort"); + +module.exports = sortSubgraph; + +function sortSubgraph(g, v, cg, biasRight) { + var movable = g.children(v), + node = g.node(v), + bl = node ? node.borderLeft : undefined, + br = node ? node.borderRight: undefined, + subgraphs = {}; + + if (bl) { + movable = _.filter(movable, function(w) { + return w !== bl && w !== br; + }); + } + + var barycenters = barycenter(g, movable); + _.each(barycenters, function(entry) { + if (g.children(entry.v).length) { + var subgraphResult = sortSubgraph(g, entry.v, cg, biasRight); + subgraphs[entry.v] = subgraphResult; + if (_.has(subgraphResult, "barycenter")) { + mergeBarycenters(entry, subgraphResult); + } + } + }); + + var entries = resolveConflicts(barycenters, cg); + expandSubgraphs(entries, subgraphs); + + var result = sort(entries, biasRight); + + if (bl) { + result.vs = _.flatten([bl, result.vs, br], true); + if (g.predecessors(bl).length) { + var blPred = g.node(g.predecessors(bl)[0]), + brPred = g.node(g.predecessors(br)[0]); + if (!_.has(result, "barycenter")) { + result.barycenter = 0; + result.weight = 0; + } + result.barycenter = (result.barycenter * result.weight + + blPred.order + brPred.order) / (result.weight + 2); + result.weight += 2; + } + } + + return result; +} + +function expandSubgraphs(entries, subgraphs) { + _.each(entries, function(entry) { + entry.vs = _.flatten(entry.vs.map(function(v) { + if (subgraphs[v]) { + return subgraphs[v].vs; + } + return v; + }), true); + }); +} + +function mergeBarycenters(target, other) { + if (!_.isUndefined(target.barycenter)) { + target.barycenter = (target.barycenter * target.weight + + other.barycenter * other.weight) / + (target.weight + other.weight); + target.weight += other.weight; + } else { + target.barycenter = other.barycenter; + target.weight = other.weight; + } +} + +},{"../lodash":10,"./barycenter":14,"./resolve-conflicts":19,"./sort":21}],21:[function(require,module,exports){ +var _ = require("../lodash"), + util = require("../util"); + +module.exports = sort; + +function sort(entries, biasRight) { + var parts = util.partition(entries, function(entry) { + return _.has(entry, "barycenter"); + }); + var sortable = parts.lhs, + unsortable = _.sortBy(parts.rhs, function(entry) { return -entry.i; }), + vs = [], + sum = 0, + weight = 0, + vsIndex = 0; + + sortable.sort(compareWithBias(!!biasRight)); + + vsIndex = consumeUnsortable(vs, unsortable, vsIndex); + + _.each(sortable, function (entry) { + vsIndex += entry.vs.length; + vs.push(entry.vs); + sum += entry.barycenter * entry.weight; + weight += entry.weight; + vsIndex = consumeUnsortable(vs, unsortable, vsIndex); + }); + + var result = { vs: _.flatten(vs, true) }; + if (weight) { + result.barycenter = sum / weight; + result.weight = weight; + } + return result; +} + +function consumeUnsortable(vs, unsortable, index) { + var last; + while (unsortable.length && (last = _.last(unsortable)).i <= index) { + unsortable.pop(); + vs.push(last.vs); + index++; + } + return index; +} + +function compareWithBias(bias) { + return function(entryV, entryW) { + if (entryV.barycenter < entryW.barycenter) { + return -1; + } else if (entryV.barycenter > entryW.barycenter) { + return 1; + } + + return !bias ? entryV.i - entryW.i : entryW.i - entryV.i; + }; +} + +},{"../lodash":10,"../util":29}],22:[function(require,module,exports){ +var _ = require("./lodash"); + +module.exports = parentDummyChains; + +function parentDummyChains(g) { + var postorderNums = postorder(g); + + _.each(g.graph().dummyChains, function(v) { + var node = g.node(v), + edgeObj = node.edgeObj, + pathData = findPath(g, postorderNums, edgeObj.v, edgeObj.w), + path = pathData.path, + lca = pathData.lca, + pathIdx = 0, + pathV = path[pathIdx], + ascending = true; + + while (v !== edgeObj.w) { + node = g.node(v); + + if (ascending) { + while ((pathV = path[pathIdx]) !== lca && + g.node(pathV).maxRank < node.rank) { + pathIdx++; + } + + if (pathV === lca) { + ascending = false; + } + } + + if (!ascending) { + while (pathIdx < path.length - 1 && + g.node(pathV = path[pathIdx + 1]).minRank <= node.rank) { + pathIdx++; + } + pathV = path[pathIdx]; + } + + g.setParent(v, pathV); + v = g.successors(v)[0]; + } + }); +} + +// Find a path from v to w through the lowest common ancestor (LCA). Return the +// full path and the LCA. +function findPath(g, postorderNums, v, w) { + var vPath = [], + wPath = [], + low = Math.min(postorderNums[v].low, postorderNums[w].low), + lim = Math.max(postorderNums[v].lim, postorderNums[w].lim), + parent, + lca; + + // Traverse up from v to find the LCA + parent = v; + do { + parent = g.parent(parent); + vPath.push(parent); + } while (parent && + (postorderNums[parent].low > low || lim > postorderNums[parent].lim)); + lca = parent; + + // Traverse from w to LCA + parent = w; + while ((parent = g.parent(parent)) !== lca) { + wPath.push(parent); + } + + return { path: vPath.concat(wPath.reverse()), lca: lca }; +} + +function postorder(g) { + var result = {}, + lim = 0; + + function dfs(v) { + var low = lim; + _.each(g.children(v), dfs); + result[v] = { low: low, lim: lim++ }; + } + _.each(g.children(), dfs); + + return result; +} + +},{"./lodash":10}],23:[function(require,module,exports){ +"use strict"; + +var _ = require("../lodash"), + Graph = require("../graphlib").Graph, + util = require("../util"); + +/* + * This module provides coordinate assignment based on Brandes and Köpf, "Fast + * and Simple Horizontal Coordinate Assignment." + */ + +module.exports = { + positionX: positionX, + findType1Conflicts: findType1Conflicts, + findType2Conflicts: findType2Conflicts, + addConflict: addConflict, + hasConflict: hasConflict, + verticalAlignment: verticalAlignment, + horizontalCompaction: horizontalCompaction, + alignCoordinates: alignCoordinates, + findSmallestWidthAlignment: findSmallestWidthAlignment, + balance: balance +}; + +/* + * Marks all edges in the graph with a type-1 conflict with the "type1Conflict" + * property. A type-1 conflict is one where a non-inner segment crosses an + * inner segment. An inner segment is an edge with both incident nodes marked + * with the "dummy" property. + * + * This algorithm scans layer by layer, starting with the second, for type-1 + * conflicts between the current layer and the previous layer. For each layer + * it scans the nodes from left to right until it reaches one that is incident + * on an inner segment. It then scans predecessors to determine if they have + * edges that cross that inner segment. At the end a final scan is done for all + * nodes on the current rank to see if they cross the last visited inner + * segment. + * + * This algorithm (safely) assumes that a dummy node will only be incident on a + * single node in the layers being scanned. + */ +function findType1Conflicts(g, layering) { + var conflicts = {}; + + function visitLayer(prevLayer, layer) { + var + // last visited node in the previous layer that is incident on an inner + // segment. + k0 = 0, + // Tracks the last node in this layer scanned for crossings with a type-1 + // segment. + scanPos = 0, + prevLayerLength = prevLayer.length, + lastNode = _.last(layer); + + _.each(layer, function(v, i) { + var w = findOtherInnerSegmentNode(g, v), + k1 = w ? g.node(w).order : prevLayerLength; + + if (w || v === lastNode) { + _.each(layer.slice(scanPos, i +1), function(scanNode) { + _.each(g.predecessors(scanNode), function(u) { + var uLabel = g.node(u), + uPos = uLabel.order; + if ((uPos < k0 || k1 < uPos) && + !(uLabel.dummy && g.node(scanNode).dummy)) { + addConflict(conflicts, u, scanNode); + } + }); + }); + scanPos = i + 1; + k0 = k1; + } + }); + + return layer; + } + + _.reduce(layering, visitLayer); + return conflicts; +} + +function findType2Conflicts(g, layering) { + var conflicts = {}; + + function scan(south, southPos, southEnd, prevNorthBorder, nextNorthBorder) { + var v; + _.each(_.range(southPos, southEnd), function(i) { + v = south[i]; + if (g.node(v).dummy) { + _.each(g.predecessors(v), function(u) { + var uNode = g.node(u); + if (uNode.dummy && + (uNode.order < prevNorthBorder || uNode.order > nextNorthBorder)) { + addConflict(conflicts, u, v); + } + }); + } + }); + } + + + function visitLayer(north, south) { + var prevNorthPos = -1, + nextNorthPos, + southPos = 0; + + _.each(south, function(v, southLookahead) { + if (g.node(v).dummy === "border") { + var predecessors = g.predecessors(v); + if (predecessors.length) { + nextNorthPos = g.node(predecessors[0]).order; + scan(south, southPos, southLookahead, prevNorthPos, nextNorthPos); + southPos = southLookahead; + prevNorthPos = nextNorthPos; + } + } + scan(south, southPos, south.length, nextNorthPos, north.length); + }); + + return south; + } + + _.reduce(layering, visitLayer); + return conflicts; +} + +function findOtherInnerSegmentNode(g, v) { + if (g.node(v).dummy) { + return _.find(g.predecessors(v), function(u) { + return g.node(u).dummy; + }); + } +} + +function addConflict(conflicts, v, w) { + if (v > w) { + var tmp = v; + v = w; + w = tmp; + } + + var conflictsV = conflicts[v]; + if (!conflictsV) { + conflicts[v] = conflictsV = {}; + } + conflictsV[w] = true; +} + +function hasConflict(conflicts, v, w) { + if (v > w) { + var tmp = v; + v = w; + w = tmp; + } + return _.has(conflicts[v], w); +} + +/* + * Try to align nodes into vertical "blocks" where possible. This algorithm + * attempts to align a node with one of its median neighbors. If the edge + * connecting a neighbor is a type-1 conflict then we ignore that possibility. + * If a previous node has already formed a block with a node after the node + * we're trying to form a block with, we also ignore that possibility - our + * blocks would be split in that scenario. + */ +function verticalAlignment(g, layering, conflicts, neighborFn) { + var root = {}, + align = {}, + pos = {}; + + // We cache the position here based on the layering because the graph and + // layering may be out of sync. The layering matrix is manipulated to + // generate different extreme alignments. + _.each(layering, function(layer) { + _.each(layer, function(v, order) { + root[v] = v; + align[v] = v; + pos[v] = order; + }); + }); + + _.each(layering, function(layer) { + var prevIdx = -1; + _.each(layer, function(v) { + var ws = neighborFn(v); + if (ws.length) { + ws = _.sortBy(ws, function(w) { return pos[w]; }); + var mp = (ws.length - 1) / 2; + for (var i = Math.floor(mp), il = Math.ceil(mp); i <= il; ++i) { + var w = ws[i]; + if (align[v] === v && + prevIdx < pos[w] && + !hasConflict(conflicts, v, w)) { + align[w] = v; + align[v] = root[v] = root[w]; + prevIdx = pos[w]; + } + } + } + }); + }); + + return { root: root, align: align }; +} + +function horizontalCompaction(g, layering, root, align, reverseSep) { + // This portion of the algorithm differs from BK due to a number of problems. + // Instead of their algorithm we construct a new block graph and do two + // sweeps. The first sweep places blocks with the smallest possible + // coordinates. The second sweep removes unused space by moving blocks to the + // greatest coordinates without violating separation. + var xs = {}, + blockG = buildBlockGraph(g, layering, root, reverseSep); + + // First pass, assign smallest coordinates via DFS + var visited = {}; + function pass1(v) { + if (!_.has(visited, v)) { + visited[v] = true; + xs[v] = _.reduce(blockG.inEdges(v), function(max, e) { + pass1(e.v); + return Math.max(max, xs[e.v] + blockG.edge(e)); + }, 0); + } + } + _.each(blockG.nodes(), pass1); + + var borderType = reverseSep ? "borderLeft" : "borderRight"; + function pass2(v) { + if (visited[v] !== 2) { + visited[v]++; + var node = g.node(v); + var min = _.reduce(blockG.outEdges(v), function(min, e) { + pass2(e.w); + return Math.min(min, xs[e.w] - blockG.edge(e)); + }, Number.POSITIVE_INFINITY); + if (min !== Number.POSITIVE_INFINITY && node.borderType !== borderType) { + xs[v] = Math.max(xs[v], min); + } + } + } + _.each(blockG.nodes(), pass2); + + // Assign x coordinates to all nodes + _.each(align, function(v) { + xs[v] = xs[root[v]]; + }); + + return xs; +} + + +function buildBlockGraph(g, layering, root, reverseSep) { + var blockGraph = new Graph(), + graphLabel = g.graph(), + sepFn = sep(graphLabel.nodesep, graphLabel.edgesep, reverseSep); + + _.each(layering, function(layer) { + var u; + _.each(layer, function(v) { + var vRoot = root[v]; + blockGraph.setNode(vRoot); + if (u) { + var uRoot = root[u], + prevMax = blockGraph.edge(uRoot, vRoot); + blockGraph.setEdge(uRoot, vRoot, Math.max(sepFn(g, v, u), prevMax || 0)); + } + u = v; + }); + }); + + return blockGraph; +} + +/* + * Returns the alignment that has the smallest width of the given alignments. + */ +function findSmallestWidthAlignment(g, xss) { + return _.min(xss, function(xs) { + var min = _.min(xs, function(x, v) { return x - width(g, v) / 2; }), + max = _.max(xs, function(x, v) { return x + width(g, v) / 2; }); + return max - min; + }); +} + +/* + * Align the coordinates of each of the layout alignments such that + * left-biased alignments have their minimum coordinate at the same point as + * the minimum coordinate of the smallest width alignment and right-biased + * alignments have their maximum coordinate at the same point as the maximum + * coordinate of the smallest width alignment. + */ +function alignCoordinates(xss, alignTo) { + var alignToMin = _.min(alignTo), + alignToMax = _.max(alignTo); + + _.each(["u", "d"], function(vert) { + _.each(["l", "r"], function(horiz) { + var alignment = vert + horiz, + xs = xss[alignment], + delta; + if (xs === alignTo) return; + + delta = horiz === "l" ? alignToMin - _.min(xs) : alignToMax - _.max(xs); + + if (delta) { + xss[alignment] = _.mapValues(xs, function(x) { return x + delta; }); + } + }); + }); +} + +function balance(xss, align) { + return _.mapValues(xss.ul, function(ignore, v) { + if (align) { + return xss[align.toLowerCase()][v]; + } else { + var xs = _.sortBy(_.pluck(xss, v)); + return (xs[1] + xs[2]) / 2; + } + }); +} + +function positionX(g) { + var layering = util.buildLayerMatrix(g), + conflicts = _.merge(findType1Conflicts(g, layering), + findType2Conflicts(g, layering)); + + var xss = {}, + adjustedLayering; + _.each(["u", "d"], function(vert) { + adjustedLayering = vert === "u" ? layering : _.values(layering).reverse(); + _.each(["l", "r"], function(horiz) { + if (horiz === "r") { + adjustedLayering = _.map(adjustedLayering, function(inner) { + return _.values(inner).reverse(); + }); + } + + var neighborFn = _.bind(vert === "u" ? g.predecessors : g.successors, g); + var align = verticalAlignment(g, adjustedLayering, conflicts, neighborFn); + var xs = horizontalCompaction(g, adjustedLayering, + align.root, align.align, + horiz === "r"); + if (horiz === "r") { + xs = _.mapValues(xs, function(x) { return -x; }); + } + xss[vert + horiz] = xs; + }); + }); + + var smallestWidth = findSmallestWidthAlignment(g, xss); + alignCoordinates(xss, smallestWidth); + return balance(xss, g.graph().align); +} + +function sep(nodeSep, edgeSep, reverseSep) { + return function(g, v, w) { + var vLabel = g.node(v), + wLabel = g.node(w), + sum = 0, + delta; + + sum += vLabel.width / 2; + if (_.has(vLabel, "labelpos")) { + switch (vLabel.labelpos.toLowerCase()) { + case "l": delta = -vLabel.width / 2; break; + case "r": delta = vLabel.width / 2; break; + } + } + if (delta) { + sum += reverseSep ? delta : -delta; + } + delta = 0; + + sum += (vLabel.dummy ? edgeSep : nodeSep) / 2; + sum += (wLabel.dummy ? edgeSep : nodeSep) / 2; + + sum += wLabel.width / 2; + if (_.has(wLabel, "labelpos")) { + switch (wLabel.labelpos.toLowerCase()) { + case "l": delta = wLabel.width / 2; break; + case "r": delta = -wLabel.width / 2; break; + } + } + if (delta) { + sum += reverseSep ? delta : -delta; + } + delta = 0; + + return sum; + }; +} + +function width(g, v) { + return g.node(v).width; +} + +},{"../graphlib":7,"../lodash":10,"../util":29}],24:[function(require,module,exports){ +"use strict"; + +var _ = require("../lodash"), + util = require("../util"), + positionX = require("./bk").positionX; + +module.exports = position; + +function position(g) { + g = util.asNonCompoundGraph(g); + + positionY(g); + _.each(positionX(g), function(x, v) { + g.node(v).x = x; + }); +} + +function positionY(g) { + var layering = util.buildLayerMatrix(g), + rankSep = g.graph().ranksep, + prevY = 0; + _.each(layering, function(layer) { + var maxHeight = _.max(_.map(layer, function(v) { return g.node(v).height; })); + _.each(layer, function(v) { + g.node(v).y = prevY + maxHeight / 2; + }); + prevY += maxHeight + rankSep; + }); +} + + +},{"../lodash":10,"../util":29,"./bk":23}],25:[function(require,module,exports){ +"use strict"; + +var _ = require("../lodash"), + Graph = require("../graphlib").Graph, + slack = require("./util").slack; + +module.exports = feasibleTree; + +/* + * Constructs a spanning tree with tight edges and adjusted the input node's + * ranks to achieve this. A tight edge is one that is has a length that matches + * its "minlen" attribute. + * + * The basic structure for this function is derived from Gansner, et al., "A + * Technique for Drawing Directed Graphs." + * + * Pre-conditions: + * + * 1. Graph must be a DAG. + * 2. Graph must be connected. + * 3. Graph must have at least one node. + * 5. Graph nodes must have been previously assigned a "rank" property that + * respects the "minlen" property of incident edges. + * 6. Graph edges must have a "minlen" property. + * + * Post-conditions: + * + * - Graph nodes will have their rank adjusted to ensure that all edges are + * tight. + * + * Returns a tree (undirected graph) that is constructed using only "tight" + * edges. + */ +function feasibleTree(g) { + var t = new Graph({ directed: false }); + + // Choose arbitrary node from which to start our tree + var start = g.nodes()[0], + size = g.nodeCount(); + t.setNode(start, {}); + + var edge, delta; + while (tightTree(t, g) < size) { + edge = findMinSlackEdge(t, g); + delta = t.hasNode(edge.v) ? slack(g, edge) : -slack(g, edge); + shiftRanks(t, g, delta); + } + + return t; +} + +/* + * Finds a maximal tree of tight edges and returns the number of nodes in the + * tree. + */ +function tightTree(t, g) { + function dfs(v) { + _.each(g.nodeEdges(v), function(e) { + var edgeV = e.v, + w = (v === edgeV) ? e.w : edgeV; + if (!t.hasNode(w) && !slack(g, e)) { + t.setNode(w, {}); + t.setEdge(v, w, {}); + dfs(w); + } + }); + } + + _.each(t.nodes(), dfs); + return t.nodeCount(); +} + +/* + * Finds the edge with the smallest slack that is incident on tree and returns + * it. + */ +function findMinSlackEdge(t, g) { + return _.min(g.edges(), function(e) { + if (t.hasNode(e.v) !== t.hasNode(e.w)) { + return slack(g, e); + } + }); +} + +function shiftRanks(t, g, delta) { + _.each(t.nodes(), function(v) { + g.node(v).rank += delta; + }); +} + +},{"../graphlib":7,"../lodash":10,"./util":28}],26:[function(require,module,exports){ +"use strict"; + +var rankUtil = require("./util"), + longestPath = rankUtil.longestPath, + feasibleTree = require("./feasible-tree"), + networkSimplex = require("./network-simplex"); + +module.exports = rank; + +/* + * Assigns a rank to each node in the input graph that respects the "minlen" + * constraint specified on edges between nodes. + * + * This basic structure is derived from Gansner, et al., "A Technique for + * Drawing Directed Graphs." + * + * Pre-conditions: + * + * 1. Graph must be a connected DAG + * 2. Graph nodes must be objects + * 3. Graph edges must have "weight" and "minlen" attributes + * + * Post-conditions: + * + * 1. Graph nodes will have a "rank" attribute based on the results of the + * algorithm. Ranks can start at any index (including negative), we'll + * fix them up later. + */ +function rank(g) { + switch(g.graph().ranker) { + case "network-simplex": networkSimplexRanker(g); break; + case "tight-tree": tightTreeRanker(g); break; + case "longest-path": longestPathRanker(g); break; + default: networkSimplexRanker(g); + } +} + +// A fast and simple ranker, but results are far from optimal. +var longestPathRanker = longestPath; + +function tightTreeRanker(g) { + longestPath(g); + feasibleTree(g); +} + +function networkSimplexRanker(g) { + networkSimplex(g); +} + +},{"./feasible-tree":25,"./network-simplex":27,"./util":28}],27:[function(require,module,exports){ +"use strict"; + +var _ = require("../lodash"), + feasibleTree = require("./feasible-tree"), + slack = require("./util").slack, + initRank = require("./util").longestPath, + preorder = require("../graphlib").alg.preorder, + postorder = require("../graphlib").alg.postorder, + simplify = require("../util").simplify; + +module.exports = networkSimplex; + +// Expose some internals for testing purposes +networkSimplex.initLowLimValues = initLowLimValues; +networkSimplex.initCutValues = initCutValues; +networkSimplex.calcCutValue = calcCutValue; +networkSimplex.leaveEdge = leaveEdge; +networkSimplex.enterEdge = enterEdge; +networkSimplex.exchangeEdges = exchangeEdges; + +/* + * The network simplex algorithm assigns ranks to each node in the input graph + * and iteratively improves the ranking to reduce the length of edges. + * + * Preconditions: + * + * 1. The input graph must be a DAG. + * 2. All nodes in the graph must have an object value. + * 3. All edges in the graph must have "minlen" and "weight" attributes. + * + * Postconditions: + * + * 1. All nodes in the graph will have an assigned "rank" attribute that has + * been optimized by the network simplex algorithm. Ranks start at 0. + * + * + * A rough sketch of the algorithm is as follows: + * + * 1. Assign initial ranks to each node. We use the longest path algorithm, + * which assigns ranks to the lowest position possible. In general this + * leads to very wide bottom ranks and unnecessarily long edges. + * 2. Construct a feasible tight tree. A tight tree is one such that all + * edges in the tree have no slack (difference between length of edge + * and minlen for the edge). This by itself greatly improves the assigned + * rankings by shorting edges. + * 3. Iteratively find edges that have negative cut values. Generally a + * negative cut value indicates that the edge could be removed and a new + * tree edge could be added to produce a more compact graph. + * + * Much of the algorithms here are derived from Gansner, et al., "A Technique + * for Drawing Directed Graphs." The structure of the file roughly follows the + * structure of the overall algorithm. + */ +function networkSimplex(g) { + g = simplify(g); + initRank(g); + var t = feasibleTree(g); + initLowLimValues(t); + initCutValues(t, g); + + var e, f; + while ((e = leaveEdge(t))) { + f = enterEdge(t, g, e); + exchangeEdges(t, g, e, f); + } +} + +/* + * Initializes cut values for all edges in the tree. + */ +function initCutValues(t, g) { + var vs = postorder(t, t.nodes()); + vs = vs.slice(0, vs.length - 1); + _.each(vs, function(v) { + assignCutValue(t, g, v); + }); +} + +function assignCutValue(t, g, child) { + var childLab = t.node(child), + parent = childLab.parent; + t.edge(child, parent).cutvalue = calcCutValue(t, g, child); +} + +/* + * Given the tight tree, its graph, and a child in the graph calculate and + * return the cut value for the edge between the child and its parent. + */ +function calcCutValue(t, g, child) { + var childLab = t.node(child), + parent = childLab.parent, + // True if the child is on the tail end of the edge in the directed graph + childIsTail = true, + // The graph's view of the tree edge we're inspecting + graphEdge = g.edge(child, parent), + // The accumulated cut value for the edge between this node and its parent + cutValue = 0; + + if (!graphEdge) { + childIsTail = false; + graphEdge = g.edge(parent, child); + } + + cutValue = graphEdge.weight; + + _.each(g.nodeEdges(child), function(e) { + var isOutEdge = e.v === child, + other = isOutEdge ? e.w : e.v; + + if (other !== parent) { + var pointsToHead = isOutEdge === childIsTail, + otherWeight = g.edge(e).weight; + + cutValue += pointsToHead ? otherWeight : -otherWeight; + if (isTreeEdge(t, child, other)) { + var otherCutValue = t.edge(child, other).cutvalue; + cutValue += pointsToHead ? -otherCutValue : otherCutValue; + } + } + }); + + return cutValue; +} + +function initLowLimValues(tree, root) { + if (arguments.length < 2) { + root = tree.nodes()[0]; + } + dfsAssignLowLim(tree, {}, 1, root); +} + +function dfsAssignLowLim(tree, visited, nextLim, v, parent) { + var low = nextLim, + label = tree.node(v); + + visited[v] = true; + _.each(tree.neighbors(v), function(w) { + if (!_.has(visited, w)) { + nextLim = dfsAssignLowLim(tree, visited, nextLim, w, v); + } + }); + + label.low = low; + label.lim = nextLim++; + if (parent) { + label.parent = parent; + } else { + // TODO should be able to remove this when we incrementally update low lim + delete label.parent; + } + + return nextLim; +} + +function leaveEdge(tree) { + return _.find(tree.edges(), function(e) { + return tree.edge(e).cutvalue < 0; + }); +} + +function enterEdge(t, g, edge) { + var v = edge.v, + w = edge.w; + + // For the rest of this function we assume that v is the tail and w is the + // head, so if we don't have this edge in the graph we should flip it to + // match the correct orientation. + if (!g.hasEdge(v, w)) { + v = edge.w; + w = edge.v; + } + + var vLabel = t.node(v), + wLabel = t.node(w), + tailLabel = vLabel, + flip = false; + + // If the root is in the tail of the edge then we need to flip the logic that + // checks for the head and tail nodes in the candidates function below. + if (vLabel.lim > wLabel.lim) { + tailLabel = wLabel; + flip = true; + } + + var candidates = _.filter(g.edges(), function(edge) { + return flip === isDescendant(t, t.node(edge.v), tailLabel) && + flip !== isDescendant(t, t.node(edge.w), tailLabel); + }); + + return _.min(candidates, function(edge) { return slack(g, edge); }); +} + +function exchangeEdges(t, g, e, f) { + var v = e.v, + w = e.w; + t.removeEdge(v, w); + t.setEdge(f.v, f.w, {}); + initLowLimValues(t); + initCutValues(t, g); + updateRanks(t, g); +} + +function updateRanks(t, g) { + var root = _.find(t.nodes(), function(v) { return !g.node(v).parent; }), + vs = preorder(t, root); + vs = vs.slice(1); + _.each(vs, function(v) { + var parent = t.node(v).parent, + edge = g.edge(v, parent), + flipped = false; + + if (!edge) { + edge = g.edge(parent, v); + flipped = true; + } + + g.node(v).rank = g.node(parent).rank + (flipped ? edge.minlen : -edge.minlen); + }); +} + +/* + * Returns true if the edge is in the tree. + */ +function isTreeEdge(tree, u, v) { + return tree.hasEdge(u, v); +} + +/* + * Returns true if the specified node is descendant of the root node per the + * assigned low and lim attributes in the tree. + */ +function isDescendant(tree, vLabel, rootLabel) { + return rootLabel.low <= vLabel.lim && vLabel.lim <= rootLabel.lim; +} + +},{"../graphlib":7,"../lodash":10,"../util":29,"./feasible-tree":25,"./util":28}],28:[function(require,module,exports){ +"use strict"; + +var _ = require("../lodash"); + +module.exports = { + longestPath: longestPath, + slack: slack +}; + +/* + * Initializes ranks for the input graph using the longest path algorithm. This + * algorithm scales well and is fast in practice, it yields rather poor + * solutions. Nodes are pushed to the lowest layer possible, leaving the bottom + * ranks wide and leaving edges longer than necessary. However, due to its + * speed, this algorithm is good for getting an initial ranking that can be fed + * into other algorithms. + * + * This algorithm does not normalize layers because it will be used by other + * algorithms in most cases. If using this algorithm directly, be sure to + * run normalize at the end. + * + * Pre-conditions: + * + * 1. Input graph is a DAG. + * 2. Input graph node labels can be assigned properties. + * + * Post-conditions: + * + * 1. Each node will be assign an (unnormalized) "rank" property. + */ +function longestPath(g) { + var visited = {}; + + function dfs(v) { + var label = g.node(v); + if (_.has(visited, v)) { + return label.rank; + } + visited[v] = true; + + var rank = _.min(_.map(g.outEdges(v), function(e) { + return dfs(e.w) - g.edge(e).minlen; + })); + + if (rank === Number.POSITIVE_INFINITY) { + rank = 0; + } + + return (label.rank = rank); + } + + _.each(g.sources(), dfs); +} + +/* + * Returns the amount of slack for the given edge. The slack is defined as the + * difference between the length of the edge and its minimum length. + */ +function slack(g, e) { + return g.node(e.w).rank - g.node(e.v).rank - g.edge(e).minlen; +} + +},{"../lodash":10}],29:[function(require,module,exports){ +"use strict"; + +var _ = require("./lodash"), + Graph = require("./graphlib").Graph; + +module.exports = { + addDummyNode: addDummyNode, + simplify: simplify, + asNonCompoundGraph: asNonCompoundGraph, + successorWeights: successorWeights, + predecessorWeights: predecessorWeights, + intersectRect: intersectRect, + buildLayerMatrix: buildLayerMatrix, + normalizeRanks: normalizeRanks, + removeEmptyRanks: removeEmptyRanks, + addBorderNode: addBorderNode, + maxRank: maxRank, + partition: partition, + time: time, + notime: notime +}; + +/* + * Adds a dummy node to the graph and return v. + */ +function addDummyNode(g, type, attrs, name) { + var v; + do { + v = _.uniqueId(name); + } while (g.hasNode(v)); + + attrs.dummy = type; + g.setNode(v, attrs); + return v; +} + +/* + * Returns a new graph with only simple edges. Handles aggregation of data + * associated with multi-edges. + */ +function simplify(g) { + var simplified = new Graph().setGraph(g.graph()); + _.each(g.nodes(), function(v) { simplified.setNode(v, g.node(v)); }); + _.each(g.edges(), function(e) { + var simpleLabel = simplified.edge(e.v, e.w) || { weight: 0, minlen: 1 }, + label = g.edge(e); + simplified.setEdge(e.v, e.w, { + weight: simpleLabel.weight + label.weight, + minlen: Math.max(simpleLabel.minlen, label.minlen) + }); + }); + return simplified; +} + +function asNonCompoundGraph(g) { + var simplified = new Graph({ multigraph: g.isMultigraph() }).setGraph(g.graph()); + _.each(g.nodes(), function(v) { + if (!g.children(v).length) { + simplified.setNode(v, g.node(v)); + } + }); + _.each(g.edges(), function(e) { + simplified.setEdge(e, g.edge(e)); + }); + return simplified; +} + +function successorWeights(g) { + var weightMap = _.map(g.nodes(), function(v) { + var sucs = {}; + _.each(g.outEdges(v), function(e) { + sucs[e.w] = (sucs[e.w] || 0) + g.edge(e).weight; + }); + return sucs; + }); + return _.zipObject(g.nodes(), weightMap); +} + +function predecessorWeights(g) { + var weightMap = _.map(g.nodes(), function(v) { + var preds = {}; + _.each(g.inEdges(v), function(e) { + preds[e.v] = (preds[e.v] || 0) + g.edge(e).weight; + }); + return preds; + }); + return _.zipObject(g.nodes(), weightMap); +} + +/* + * Finds where a line starting at point ({x, y}) would intersect a rectangle + * ({x, y, width, height}) if it were pointing at the rectangle's center. + */ +function intersectRect(rect, point) { + var x = rect.x; + var y = rect.y; + + // Rectangle intersection algorithm from: + // http://math.stackexchange.com/questions/108113/find-edge-between-two-boxes + var dx = point.x - x; + var dy = point.y - y; + var w = rect.width / 2; + var h = rect.height / 2; + + if (!dx && !dy) { + throw new Error("Not possible to find intersection inside of the rectangle"); + } + + var sx, sy; + if (Math.abs(dy) * w > Math.abs(dx) * h) { + // Intersection is top or bottom of rect. + if (dy < 0) { + h = -h; + } + sx = h * dx / dy; + sy = h; + } else { + // Intersection is left or right of rect. + if (dx < 0) { + w = -w; + } + sx = w; + sy = w * dy / dx; + } + + return { x: x + sx, y: y + sy }; +} + +/* + * Given a DAG with each node assigned "rank" and "order" properties, this + * function will produce a matrix with the ids of each node. + */ +function buildLayerMatrix(g) { + var layering = _.map(_.range(maxRank(g) + 1), function() { return []; }); + _.each(g.nodes(), function(v) { + var node = g.node(v), + rank = node.rank; + if (!_.isUndefined(rank)) { + layering[rank][node.order] = v; + } + }); + return layering; +} + +/* + * Adjusts the ranks for all nodes in the graph such that all nodes v have + * rank(v) >= 0 and at least one node w has rank(w) = 0. + */ +function normalizeRanks(g) { + var min = _.min(_.map(g.nodes(), function(v) { return g.node(v).rank; })); + _.each(g.nodes(), function(v) { + var node = g.node(v); + if (_.has(node, "rank")) { + node.rank -= min; + } + }); +} + +function removeEmptyRanks(g) { + // Ranks may not start at 0, so we need to offset them + var offset = _.min(_.map(g.nodes(), function(v) { return g.node(v).rank; })); + + var layers = []; + _.each(g.nodes(), function(v) { + var rank = g.node(v).rank - offset; + if (!layers[rank]) { + layers[rank] = []; + } + layers[rank].push(v); + }); + + var delta = 0, + nodeRankFactor = g.graph().nodeRankFactor; + _.each(layers, function(vs, i) { + if (_.isUndefined(vs) && i % nodeRankFactor !== 0) { + --delta; + } else if (delta) { + _.each(vs, function(v) { g.node(v).rank += delta; }); + } + }); +} + +function addBorderNode(g, prefix, rank, order) { + var node = { + width: 0, + height: 0 + }; + if (arguments.length >= 4) { + node.rank = rank; + node.order = order; + } + return addDummyNode(g, "border", node, prefix); +} + +function maxRank(g) { + return _.max(_.map(g.nodes(), function(v) { + var rank = g.node(v).rank; + if (!_.isUndefined(rank)) { + return rank; + } + })); +} + +/* + * Partition a collection into two groups: `lhs` and `rhs`. If the supplied + * function returns true for an entry it goes into `lhs`. Otherwise it goes + * into `rhs. + */ +function partition(collection, fn) { + var result = { lhs: [], rhs: [] }; + _.each(collection, function(value) { + if (fn(value)) { + result.lhs.push(value); + } else { + result.rhs.push(value); + } + }); + return result; +} + +/* + * Returns a new function that wraps `fn` with a timer. The wrapper logs the + * time it takes to execute the function. + */ +function time(name, fn) { + var start = _.now(); + try { + return fn(); + } finally { + console.log(name + " time: " + (_.now() - start) + "ms"); + } +} + +function notime(name, fn) { + return fn(); +} + +},{"./graphlib":7,"./lodash":10}],30:[function(require,module,exports){ +module.exports = "0.7.4"; + +},{}],31:[function(require,module,exports){ +/** + * Copyright (c) 2014, Chris Pettitt + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. Neither the name of the copyright holder nor the names of its contributors + * may be used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +var lib = require("./lib"); + +module.exports = { + Graph: lib.Graph, + json: require("./lib/json"), + alg: require("./lib/alg"), + version: lib.version +}; + +},{"./lib":47,"./lib/alg":38,"./lib/json":48}],32:[function(require,module,exports){ +var _ = require("../lodash"); + +module.exports = components; + +function components(g) { + var visited = {}, + cmpts = [], + cmpt; + + function dfs(v) { + if (_.has(visited, v)) return; + visited[v] = true; + cmpt.push(v); + _.each(g.successors(v), dfs); + _.each(g.predecessors(v), dfs); + } + + _.each(g.nodes(), function(v) { + cmpt = []; + dfs(v); + if (cmpt.length) { + cmpts.push(cmpt); + } + }); + + return cmpts; +} + +},{"../lodash":49}],33:[function(require,module,exports){ +var _ = require("../lodash"); + +module.exports = dfs; + +/* + * A helper that preforms a pre- or post-order traversal on the input graph + * and returns the nodes in the order they were visited. This algorithm treats + * the input as undirected. + * + * Order must be one of "pre" or "post". + */ +function dfs(g, vs, order) { + if (!_.isArray(vs)) { + vs = [vs]; + } + + var acc = [], + visited = {}; + _.each(vs, function(v) { + if (!g.hasNode(v)) { + throw new Error("Graph does not have node: " + v); + } + + doDfs(g, v, order === "post", visited, acc); + }); + return acc; +} + +function doDfs(g, v, postorder, visited, acc) { + if (!_.has(visited, v)) { + visited[v] = true; + + if (!postorder) { acc.push(v); } + _.each(g.neighbors(v), function(w) { + doDfs(g, w, postorder, visited, acc); + }); + if (postorder) { acc.push(v); } + } +} + +},{"../lodash":49}],34:[function(require,module,exports){ +var dijkstra = require("./dijkstra"), + _ = require("../lodash"); + +module.exports = dijkstraAll; + +function dijkstraAll(g, weightFunc, edgeFunc) { + return _.transform(g.nodes(), function(acc, v) { + acc[v] = dijkstra(g, v, weightFunc, edgeFunc); + }, {}); +} + +},{"../lodash":49,"./dijkstra":35}],35:[function(require,module,exports){ +var _ = require("../lodash"), + PriorityQueue = require("../data/priority-queue"); + +module.exports = dijkstra; + +var DEFAULT_WEIGHT_FUNC = _.constant(1); + +function dijkstra(g, source, weightFn, edgeFn) { + return runDijkstra(g, String(source), + weightFn || DEFAULT_WEIGHT_FUNC, + edgeFn || function(v) { return g.outEdges(v); }); +} + +function runDijkstra(g, source, weightFn, edgeFn) { + var results = {}, + pq = new PriorityQueue(), + v, vEntry; + + var updateNeighbors = function(edge) { + var w = edge.v !== v ? edge.v : edge.w, + wEntry = results[w], + weight = weightFn(edge), + distance = vEntry.distance + weight; + + if (weight < 0) { + throw new Error("dijkstra does not allow negative edge weights. " + + "Bad edge: " + edge + " Weight: " + weight); + } + + if (distance < wEntry.distance) { + wEntry.distance = distance; + wEntry.predecessor = v; + pq.decrease(w, distance); + } + }; + + g.nodes().forEach(function(v) { + var distance = v === source ? 0 : Number.POSITIVE_INFINITY; + results[v] = { distance: distance }; + pq.add(v, distance); + }); + + while (pq.size() > 0) { + v = pq.removeMin(); + vEntry = results[v]; + if (vEntry.distance === Number.POSITIVE_INFINITY) { + break; + } + + edgeFn(v).forEach(updateNeighbors); + } + + return results; +} + +},{"../data/priority-queue":45,"../lodash":49}],36:[function(require,module,exports){ +var _ = require("../lodash"), + tarjan = require("./tarjan"); + +module.exports = findCycles; + +function findCycles(g) { + return _.filter(tarjan(g), function(cmpt) { + return cmpt.length > 1 || (cmpt.length === 1 && g.hasEdge(cmpt[0], cmpt[0])); + }); +} + +},{"../lodash":49,"./tarjan":43}],37:[function(require,module,exports){ +var _ = require("../lodash"); + +module.exports = floydWarshall; + +var DEFAULT_WEIGHT_FUNC = _.constant(1); + +function floydWarshall(g, weightFn, edgeFn) { + return runFloydWarshall(g, + weightFn || DEFAULT_WEIGHT_FUNC, + edgeFn || function(v) { return g.outEdges(v); }); +} + +function runFloydWarshall(g, weightFn, edgeFn) { + var results = {}, + nodes = g.nodes(); + + nodes.forEach(function(v) { + results[v] = {}; + results[v][v] = { distance: 0 }; + nodes.forEach(function(w) { + if (v !== w) { + results[v][w] = { distance: Number.POSITIVE_INFINITY }; + } + }); + edgeFn(v).forEach(function(edge) { + var w = edge.v === v ? edge.w : edge.v, + d = weightFn(edge); + results[v][w] = { distance: d, predecessor: v }; + }); + }); + + nodes.forEach(function(k) { + var rowK = results[k]; + nodes.forEach(function(i) { + var rowI = results[i]; + nodes.forEach(function(j) { + var ik = rowI[k]; + var kj = rowK[j]; + var ij = rowI[j]; + var altDistance = ik.distance + kj.distance; + if (altDistance < ij.distance) { + ij.distance = altDistance; + ij.predecessor = kj.predecessor; + } + }); + }); + }); + + return results; +} + +},{"../lodash":49}],38:[function(require,module,exports){ +module.exports = { + components: require("./components"), + dijkstra: require("./dijkstra"), + dijkstraAll: require("./dijkstra-all"), + findCycles: require("./find-cycles"), + floydWarshall: require("./floyd-warshall"), + isAcyclic: require("./is-acyclic"), + postorder: require("./postorder"), + preorder: require("./preorder"), + prim: require("./prim"), + tarjan: require("./tarjan"), + topsort: require("./topsort") +}; + +},{"./components":32,"./dijkstra":35,"./dijkstra-all":34,"./find-cycles":36,"./floyd-warshall":37,"./is-acyclic":39,"./postorder":40,"./preorder":41,"./prim":42,"./tarjan":43,"./topsort":44}],39:[function(require,module,exports){ +var topsort = require("./topsort"); + +module.exports = isAcyclic; + +function isAcyclic(g) { + try { + topsort(g); + } catch (e) { + if (e instanceof topsort.CycleException) { + return false; + } + throw e; + } + return true; +} + +},{"./topsort":44}],40:[function(require,module,exports){ +var dfs = require("./dfs"); + +module.exports = postorder; + +function postorder(g, vs) { + return dfs(g, vs, "post"); +} + +},{"./dfs":33}],41:[function(require,module,exports){ +var dfs = require("./dfs"); + +module.exports = preorder; + +function preorder(g, vs) { + return dfs(g, vs, "pre"); +} + +},{"./dfs":33}],42:[function(require,module,exports){ +var _ = require("../lodash"), + Graph = require("../graph"), + PriorityQueue = require("../data/priority-queue"); + +module.exports = prim; + +function prim(g, weightFunc) { + var result = new Graph(), + parents = {}, + pq = new PriorityQueue(), + v; + + function updateNeighbors(edge) { + var w = edge.v === v ? edge.w : edge.v, + pri = pq.priority(w); + if (pri !== undefined) { + var edgeWeight = weightFunc(edge); + if (edgeWeight < pri) { + parents[w] = v; + pq.decrease(w, edgeWeight); + } + } + } + + if (g.nodeCount() === 0) { + return result; + } + + _.each(g.nodes(), function(v) { + pq.add(v, Number.POSITIVE_INFINITY); + result.setNode(v); + }); + + // Start from an arbitrary node + pq.decrease(g.nodes()[0], 0); + + var init = false; + while (pq.size() > 0) { + v = pq.removeMin(); + if (_.has(parents, v)) { + result.setEdge(v, parents[v]); + } else if (init) { + throw new Error("Input graph is not connected: " + g); + } else { + init = true; + } + + g.nodeEdges(v).forEach(updateNeighbors); + } + + return result; +} + +},{"../data/priority-queue":45,"../graph":46,"../lodash":49}],43:[function(require,module,exports){ +var _ = require("../lodash"); + +module.exports = tarjan; + +function tarjan(g) { + var index = 0, + stack = [], + visited = {}, // node id -> { onStack, lowlink, index } + results = []; + + function dfs(v) { + var entry = visited[v] = { + onStack: true, + lowlink: index, + index: index++ + }; + stack.push(v); + + g.successors(v).forEach(function(w) { + if (!_.has(visited, w)) { + dfs(w); + entry.lowlink = Math.min(entry.lowlink, visited[w].lowlink); + } else if (visited[w].onStack) { + entry.lowlink = Math.min(entry.lowlink, visited[w].index); + } + }); + + if (entry.lowlink === entry.index) { + var cmpt = [], + w; + do { + w = stack.pop(); + visited[w].onStack = false; + cmpt.push(w); + } while (v !== w); + results.push(cmpt); + } + } + + g.nodes().forEach(function(v) { + if (!_.has(visited, v)) { + dfs(v); + } + }); + + return results; +} + +},{"../lodash":49}],44:[function(require,module,exports){ +var _ = require("../lodash"); + +module.exports = topsort; +topsort.CycleException = CycleException; + +function topsort(g) { + var visited = {}, + stack = {}, + results = []; + + function visit(node) { + if (_.has(stack, node)) { + throw new CycleException(); + } + + if (!_.has(visited, node)) { + stack[node] = true; + visited[node] = true; + _.each(g.predecessors(node), visit); + delete stack[node]; + results.push(node); + } + } + + _.each(g.sinks(), visit); + + if (_.size(visited) !== g.nodeCount()) { + throw new CycleException(); + } + + return results; +} + +function CycleException() {} + +},{"../lodash":49}],45:[function(require,module,exports){ +var _ = require("../lodash"); + +module.exports = PriorityQueue; + +/** + * A min-priority queue data structure. This algorithm is derived from Cormen, + * et al., "Introduction to Algorithms". The basic idea of a min-priority + * queue is that you can efficiently (in O(1) time) get the smallest key in + * the queue. Adding and removing elements takes O(log n) time. A key can + * have its priority decreased in O(log n) time. + */ +function PriorityQueue() { + this._arr = []; + this._keyIndices = {}; +} + +/** + * Returns the number of elements in the queue. Takes `O(1)` time. + */ +PriorityQueue.prototype.size = function() { + return this._arr.length; +}; + +/** + * Returns the keys that are in the queue. Takes `O(n)` time. + */ +PriorityQueue.prototype.keys = function() { + return this._arr.map(function(x) { return x.key; }); +}; + +/** + * Returns `true` if **key** is in the queue and `false` if not. + */ +PriorityQueue.prototype.has = function(key) { + return _.has(this._keyIndices, key); +}; + +/** + * Returns the priority for **key**. If **key** is not present in the queue + * then this function returns `undefined`. Takes `O(1)` time. + * + * @param {Object} key + */ +PriorityQueue.prototype.priority = function(key) { + var index = this._keyIndices[key]; + if (index !== undefined) { + return this._arr[index].priority; + } +}; + +/** + * Returns the key for the minimum element in this queue. If the queue is + * empty this function throws an Error. Takes `O(1)` time. + */ +PriorityQueue.prototype.min = function() { + if (this.size() === 0) { + throw new Error("Queue underflow"); + } + return this._arr[0].key; +}; + +/** + * Inserts a new key into the priority queue. If the key already exists in + * the queue this function returns `false`; otherwise it will return `true`. + * Takes `O(n)` time. + * + * @param {Object} key the key to add + * @param {Number} priority the initial priority for the key + */ +PriorityQueue.prototype.add = function(key, priority) { + var keyIndices = this._keyIndices; + key = String(key); + if (!_.has(keyIndices, key)) { + var arr = this._arr; + var index = arr.length; + keyIndices[key] = index; + arr.push({key: key, priority: priority}); + this._decrease(index); + return true; + } + return false; +}; + +/** + * Removes and returns the smallest key in the queue. Takes `O(log n)` time. + */ +PriorityQueue.prototype.removeMin = function() { + this._swap(0, this._arr.length - 1); + var min = this._arr.pop(); + delete this._keyIndices[min.key]; + this._heapify(0); + return min.key; +}; + +/** + * Decreases the priority for **key** to **priority**. If the new priority is + * greater than the previous priority, this function will throw an Error. + * + * @param {Object} key the key for which to raise priority + * @param {Number} priority the new priority for the key + */ +PriorityQueue.prototype.decrease = function(key, priority) { + var index = this._keyIndices[key]; + if (priority > this._arr[index].priority) { + throw new Error("New priority is greater than current priority. " + + "Key: " + key + " Old: " + this._arr[index].priority + " New: " + priority); + } + this._arr[index].priority = priority; + this._decrease(index); +}; + +PriorityQueue.prototype._heapify = function(i) { + var arr = this._arr; + var l = 2 * i, + r = l + 1, + largest = i; + if (l < arr.length) { + largest = arr[l].priority < arr[largest].priority ? l : largest; + if (r < arr.length) { + largest = arr[r].priority < arr[largest].priority ? r : largest; + } + if (largest !== i) { + this._swap(i, largest); + this._heapify(largest); + } + } +}; + +PriorityQueue.prototype._decrease = function(index) { + var arr = this._arr; + var priority = arr[index].priority; + var parent; + while (index !== 0) { + parent = index >> 1; + if (arr[parent].priority < priority) { + break; + } + this._swap(index, parent); + index = parent; + } +}; + +PriorityQueue.prototype._swap = function(i, j) { + var arr = this._arr; + var keyIndices = this._keyIndices; + var origArrI = arr[i]; + var origArrJ = arr[j]; + arr[i] = origArrJ; + arr[j] = origArrI; + keyIndices[origArrJ.key] = i; + keyIndices[origArrI.key] = j; +}; + +},{"../lodash":49}],46:[function(require,module,exports){ +"use strict"; + +var _ = require("./lodash"); + +module.exports = Graph; + +var DEFAULT_EDGE_NAME = "\x00", + GRAPH_NODE = "\x00", + EDGE_KEY_DELIM = "\x01"; + +// Implementation notes: +// +// * Node id query functions should return string ids for the nodes +// * Edge id query functions should return an "edgeObj", edge object, that is +// composed of enough information to uniquely identify an edge: {v, w, name}. +// * Internally we use an "edgeId", a stringified form of the edgeObj, to +// reference edges. This is because we need a performant way to look these +// edges up and, object properties, which have string keys, are the closest +// we're going to get to a performant hashtable in JavaScript. + +function Graph(opts) { + this._isDirected = _.has(opts, "directed") ? opts.directed : true; + this._isMultigraph = _.has(opts, "multigraph") ? opts.multigraph : false; + this._isCompound = _.has(opts, "compound") ? opts.compound : false; + + // Label for the graph itself + this._label = undefined; + + // Defaults to be set when creating a new node + this._defaultNodeLabelFn = _.constant(undefined); + + // Defaults to be set when creating a new edge + this._defaultEdgeLabelFn = _.constant(undefined); + + // v -> label + this._nodes = {}; + + if (this._isCompound) { + // v -> parent + this._parent = {}; + + // v -> children + this._children = {}; + this._children[GRAPH_NODE] = {}; + } + + // v -> edgeObj + this._in = {}; + + // u -> v -> Number + this._preds = {}; + + // v -> edgeObj + this._out = {}; + + // v -> w -> Number + this._sucs = {}; + + // e -> edgeObj + this._edgeObjs = {}; + + // e -> label + this._edgeLabels = {}; +} + +/* Number of nodes in the graph. Should only be changed by the implementation. */ +Graph.prototype._nodeCount = 0; + +/* Number of edges in the graph. Should only be changed by the implementation. */ +Graph.prototype._edgeCount = 0; + + +/* === Graph functions ========= */ + +Graph.prototype.isDirected = function() { + return this._isDirected; +}; + +Graph.prototype.isMultigraph = function() { + return this._isMultigraph; +}; + +Graph.prototype.isCompound = function() { + return this._isCompound; +}; + +Graph.prototype.setGraph = function(label) { + this._label = label; + return this; +}; + +Graph.prototype.graph = function() { + return this._label; +}; + + +/* === Node functions ========== */ + +Graph.prototype.setDefaultNodeLabel = function(newDefault) { + if (!_.isFunction(newDefault)) { + newDefault = _.constant(newDefault); + } + this._defaultNodeLabelFn = newDefault; + return this; +}; + +Graph.prototype.nodeCount = function() { + return this._nodeCount; +}; + +Graph.prototype.nodes = function() { + return _.keys(this._nodes); +}; + +Graph.prototype.sources = function() { + return _.filter(this.nodes(), function(v) { + return _.isEmpty(this._in[v]); + }, this); +}; + +Graph.prototype.sinks = function() { + return _.filter(this.nodes(), function(v) { + return _.isEmpty(this._out[v]); + }, this); +}; + +Graph.prototype.setNodes = function(vs, value) { + var args = arguments; + _.each(vs, function(v) { + if (args.length > 1) { + this.setNode(v, value); + } else { + this.setNode(v); + } + }, this); + return this; +}; + +Graph.prototype.setNode = function(v, value) { + if (_.has(this._nodes, v)) { + if (arguments.length > 1) { + this._nodes[v] = value; + } + return this; + } + + this._nodes[v] = arguments.length > 1 ? value : this._defaultNodeLabelFn(v); + if (this._isCompound) { + this._parent[v] = GRAPH_NODE; + this._children[v] = {}; + this._children[GRAPH_NODE][v] = true; + } + this._in[v] = {}; + this._preds[v] = {}; + this._out[v] = {}; + this._sucs[v] = {}; + ++this._nodeCount; + return this; +}; + +Graph.prototype.node = function(v) { + return this._nodes[v]; +}; + +Graph.prototype.hasNode = function(v) { + return _.has(this._nodes, v); +}; + +Graph.prototype.removeNode = function(v) { + var self = this; + if (_.has(this._nodes, v)) { + var removeEdge = function(e) { self.removeEdge(self._edgeObjs[e]); }; + delete this._nodes[v]; + if (this._isCompound) { + this._removeFromParentsChildList(v); + delete this._parent[v]; + _.each(this.children(v), function(child) { + this.setParent(child); + }, this); + delete this._children[v]; + } + _.each(_.keys(this._in[v]), removeEdge); + delete this._in[v]; + delete this._preds[v]; + _.each(_.keys(this._out[v]), removeEdge); + delete this._out[v]; + delete this._sucs[v]; + --this._nodeCount; + } + return this; +}; + +Graph.prototype.setParent = function(v, parent) { + if (!this._isCompound) { + throw new Error("Cannot set parent in a non-compound graph"); + } + + if (_.isUndefined(parent)) { + parent = GRAPH_NODE; + } else { + // Coerce parent to string + parent += ""; + for (var ancestor = parent; + !_.isUndefined(ancestor); + ancestor = this.parent(ancestor)) { + if (ancestor === v) { + throw new Error("Setting " + parent+ " as parent of " + v + + " would create create a cycle"); + } + } + + this.setNode(parent); + } + + this.setNode(v); + this._removeFromParentsChildList(v); + this._parent[v] = parent; + this._children[parent][v] = true; + return this; +}; + +Graph.prototype._removeFromParentsChildList = function(v) { + delete this._children[this._parent[v]][v]; +}; + +Graph.prototype.parent = function(v) { + if (this._isCompound) { + var parent = this._parent[v]; + if (parent !== GRAPH_NODE) { + return parent; + } + } +}; + +Graph.prototype.children = function(v) { + if (_.isUndefined(v)) { + v = GRAPH_NODE; + } + + if (this._isCompound) { + var children = this._children[v]; + if (children) { + return _.keys(children); + } + } else if (v === GRAPH_NODE) { + return this.nodes(); + } else if (this.hasNode(v)) { + return []; + } +}; + +Graph.prototype.predecessors = function(v) { + var predsV = this._preds[v]; + if (predsV) { + return _.keys(predsV); + } +}; + +Graph.prototype.successors = function(v) { + var sucsV = this._sucs[v]; + if (sucsV) { + return _.keys(sucsV); + } +}; + +Graph.prototype.neighbors = function(v) { + var preds = this.predecessors(v); + if (preds) { + return _.union(preds, this.successors(v)); + } +}; + +/* === Edge functions ========== */ + +Graph.prototype.setDefaultEdgeLabel = function(newDefault) { + if (!_.isFunction(newDefault)) { + newDefault = _.constant(newDefault); + } + this._defaultEdgeLabelFn = newDefault; + return this; +}; + +Graph.prototype.edgeCount = function() { + return this._edgeCount; +}; + +Graph.prototype.edges = function() { + return _.values(this._edgeObjs); +}; + +Graph.prototype.setPath = function(vs, value) { + var self = this, + args = arguments; + _.reduce(vs, function(v, w) { + if (args.length > 1) { + self.setEdge(v, w, value); + } else { + self.setEdge(v, w); + } + return w; + }); + return this; +}; + +/* + * setEdge(v, w, [value, [name]]) + * setEdge({ v, w, [name] }, [value]) + */ +Graph.prototype.setEdge = function() { + var v, w, name, value, + valueSpecified = false; + + if (_.isPlainObject(arguments[0])) { + v = arguments[0].v; + w = arguments[0].w; + name = arguments[0].name; + if (arguments.length === 2) { + value = arguments[1]; + valueSpecified = true; + } + } else { + v = arguments[0]; + w = arguments[1]; + name = arguments[3]; + if (arguments.length > 2) { + value = arguments[2]; + valueSpecified = true; + } + } + + v = "" + v; + w = "" + w; + if (!_.isUndefined(name)) { + name = "" + name; + } + + var e = edgeArgsToId(this._isDirected, v, w, name); + if (_.has(this._edgeLabels, e)) { + if (valueSpecified) { + this._edgeLabels[e] = value; + } + return this; + } + + if (!_.isUndefined(name) && !this._isMultigraph) { + throw new Error("Cannot set a named edge when isMultigraph = false"); + } + + // It didn't exist, so we need to create it. + // First ensure the nodes exist. + this.setNode(v); + this.setNode(w); + + this._edgeLabels[e] = valueSpecified ? value : this._defaultEdgeLabelFn(v, w, name); + + var edgeObj = edgeArgsToObj(this._isDirected, v, w, name); + // Ensure we add undirected edges in a consistent way. + v = edgeObj.v; + w = edgeObj.w; + + Object.freeze(edgeObj); + this._edgeObjs[e] = edgeObj; + incrementOrInitEntry(this._preds[w], v); + incrementOrInitEntry(this._sucs[v], w); + this._in[w][e] = edgeObj; + this._out[v][e] = edgeObj; + this._edgeCount++; + return this; +}; + +Graph.prototype.edge = function(v, w, name) { + var e = (arguments.length === 1 + ? edgeObjToId(this._isDirected, arguments[0]) + : edgeArgsToId(this._isDirected, v, w, name)); + return this._edgeLabels[e]; +}; + +Graph.prototype.hasEdge = function(v, w, name) { + var e = (arguments.length === 1 + ? edgeObjToId(this._isDirected, arguments[0]) + : edgeArgsToId(this._isDirected, v, w, name)); + return _.has(this._edgeLabels, e); +}; + +Graph.prototype.removeEdge = function(v, w, name) { + var e = (arguments.length === 1 + ? edgeObjToId(this._isDirected, arguments[0]) + : edgeArgsToId(this._isDirected, v, w, name)), + edge = this._edgeObjs[e]; + if (edge) { + v = edge.v; + w = edge.w; + delete this._edgeLabels[e]; + delete this._edgeObjs[e]; + decrementOrRemoveEntry(this._preds[w], v); + decrementOrRemoveEntry(this._sucs[v], w); + delete this._in[w][e]; + delete this._out[v][e]; + this._edgeCount--; + } + return this; +}; + +Graph.prototype.inEdges = function(v, u) { + var inV = this._in[v]; + if (inV) { + var edges = _.values(inV); + if (!u) { + return edges; + } + return _.filter(edges, function(edge) { return edge.v === u; }); + } +}; + +Graph.prototype.outEdges = function(v, w) { + var outV = this._out[v]; + if (outV) { + var edges = _.values(outV); + if (!w) { + return edges; + } + return _.filter(edges, function(edge) { return edge.w === w; }); + } +}; + +Graph.prototype.nodeEdges = function(v, w) { + var inEdges = this.inEdges(v, w); + if (inEdges) { + return inEdges.concat(this.outEdges(v, w)); + } +}; + +function incrementOrInitEntry(map, k) { + if (_.has(map, k)) { + map[k]++; + } else { + map[k] = 1; + } +} + +function decrementOrRemoveEntry(map, k) { + if (!--map[k]) { delete map[k]; } +} + +function edgeArgsToId(isDirected, v, w, name) { + if (!isDirected && v > w) { + var tmp = v; + v = w; + w = tmp; + } + return v + EDGE_KEY_DELIM + w + EDGE_KEY_DELIM + + (_.isUndefined(name) ? DEFAULT_EDGE_NAME : name); +} + +function edgeArgsToObj(isDirected, v, w, name) { + if (!isDirected && v > w) { + var tmp = v; + v = w; + w = tmp; + } + var edgeObj = { v: v, w: w }; + if (name) { + edgeObj.name = name; + } + return edgeObj; +} + +function edgeObjToId(isDirected, edgeObj) { + return edgeArgsToId(isDirected, edgeObj.v, edgeObj.w, edgeObj.name); +} + +},{"./lodash":49}],47:[function(require,module,exports){ +// Includes only the "core" of graphlib +module.exports = { + Graph: require("./graph"), + version: require("./version") +}; + +},{"./graph":46,"./version":50}],48:[function(require,module,exports){ +var _ = require("./lodash"), + Graph = require("./graph"); + +module.exports = { + write: write, + read: read +}; + +function write(g) { + var json = { + options: { + directed: g.isDirected(), + multigraph: g.isMultigraph(), + compound: g.isCompound() + }, + nodes: writeNodes(g), + edges: writeEdges(g) + }; + if (!_.isUndefined(g.graph())) { + json.value = _.clone(g.graph()); + } + return json; +} + +function writeNodes(g) { + return _.map(g.nodes(), function(v) { + var nodeValue = g.node(v), + parent = g.parent(v), + node = { v: v }; + if (!_.isUndefined(nodeValue)) { + node.value = nodeValue; + } + if (!_.isUndefined(parent)) { + node.parent = parent; + } + return node; + }); +} + +function writeEdges(g) { + return _.map(g.edges(), function(e) { + var edgeValue = g.edge(e), + edge = { v: e.v, w: e.w }; + if (!_.isUndefined(e.name)) { + edge.name = e.name; + } + if (!_.isUndefined(edgeValue)) { + edge.value = edgeValue; + } + return edge; + }); +} + +function read(json) { + var g = new Graph(json.options).setGraph(json.value); + _.each(json.nodes, function(entry) { + g.setNode(entry.v, entry.value); + if (entry.parent) { + g.setParent(entry.v, entry.parent); + } + }); + _.each(json.edges, function(entry) { + g.setEdge({ v: entry.v, w: entry.w, name: entry.name }, entry.value); + }); + return g; +} + +},{"./graph":46,"./lodash":49}],49:[function(require,module,exports){ +module.exports=require(10) +},{"/Users/cpettitt/projects/dagre/lib/lodash.js":10,"lodash":51}],50:[function(require,module,exports){ +module.exports = '1.0.5'; + +},{}],51:[function(require,module,exports){ +(function (global){ +/** + * @license + * lodash 3.10.0 (Custom Build) + * Build: `lodash modern -d -o ./index.js` + * Copyright 2012-2015 The Dojo Foundation + * Based on Underscore.js 1.8.3 + * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + * Available under MIT license + */ +;(function() { + + /** Used as a safe reference for `undefined` in pre-ES5 environments. */ + var undefined; + + /** Used as the semantic version number. */ + var VERSION = '3.10.0'; + + /** Used to compose bitmasks for wrapper metadata. */ + var BIND_FLAG = 1, + BIND_KEY_FLAG = 2, + CURRY_BOUND_FLAG = 4, + CURRY_FLAG = 8, + CURRY_RIGHT_FLAG = 16, + PARTIAL_FLAG = 32, + PARTIAL_RIGHT_FLAG = 64, + ARY_FLAG = 128, + REARG_FLAG = 256; + + /** Used as default options for `_.trunc`. */ + var DEFAULT_TRUNC_LENGTH = 30, + DEFAULT_TRUNC_OMISSION = '...'; + + /** Used to detect when a function becomes hot. */ + var HOT_COUNT = 150, + HOT_SPAN = 16; + + /** Used as the size to enable large array optimizations. */ + var LARGE_ARRAY_SIZE = 200; + + /** Used to indicate the type of lazy iteratees. */ + var LAZY_FILTER_FLAG = 1, + LAZY_MAP_FLAG = 2; + + /** Used as the `TypeError` message for "Functions" methods. */ + var FUNC_ERROR_TEXT = 'Expected a function'; + + /** Used as the internal argument placeholder. */ + var PLACEHOLDER = '__lodash_placeholder__'; + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + errorTag = '[object Error]', + funcTag = '[object Function]', + mapTag = '[object Map]', + numberTag = '[object Number]', + objectTag = '[object Object]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + weakMapTag = '[object WeakMap]'; + + var arrayBufferTag = '[object ArrayBuffer]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + + /** Used to match empty string literals in compiled template source. */ + var reEmptyStringLeading = /\b__p \+= '';/g, + reEmptyStringMiddle = /\b(__p \+=) '' \+/g, + reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g; + + /** Used to match HTML entities and HTML characters. */ + var reEscapedHtml = /&(?:amp|lt|gt|quot|#39|#96);/g, + reUnescapedHtml = /[&<>"'`]/g, + reHasEscapedHtml = RegExp(reEscapedHtml.source), + reHasUnescapedHtml = RegExp(reUnescapedHtml.source); + + /** Used to match template delimiters. */ + var reEscape = /<%-([\s\S]+?)%>/g, + reEvaluate = /<%([\s\S]+?)%>/g, + reInterpolate = /<%=([\s\S]+?)%>/g; + + /** Used to match property names within property paths. */ + var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\n\\]|\\.)*?\1)\]/, + reIsPlainProp = /^\w*$/, + rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\n\\]|\\.)*?)\2)\]/g; + + /** + * Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns) + * and those outlined by [`EscapeRegExpPattern`](http://ecma-international.org/ecma-262/6.0/#sec-escaperegexppattern). + */ + var reRegExpChars = /^[:!,]|[\\^$.*+?()[\]{}|\/]|(^[0-9a-fA-Fnrtuvx])|([\n\r\u2028\u2029])/g, + reHasRegExpChars = RegExp(reRegExpChars.source); + + /** Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). */ + var reComboMark = /[\u0300-\u036f\ufe20-\ufe23]/g; + + /** Used to match backslashes in property paths. */ + var reEscapeChar = /\\(\\)?/g; + + /** Used to match [ES template delimiters](http://ecma-international.org/ecma-262/6.0/#sec-template-literal-lexical-components). */ + var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g; + + /** Used to match `RegExp` flags from their coerced string values. */ + var reFlags = /\w*$/; + + /** Used to detect hexadecimal string values. */ + var reHasHexPrefix = /^0[xX]/; + + /** Used to detect host constructors (Safari > 5). */ + var reIsHostCtor = /^\[object .+?Constructor\]$/; + + /** Used to detect unsigned integer values. */ + var reIsUint = /^\d+$/; + + /** Used to match latin-1 supplementary letters (excluding mathematical operators). */ + var reLatin1 = /[\xc0-\xd6\xd8-\xde\xdf-\xf6\xf8-\xff]/g; + + /** Used to ensure capturing order of template delimiters. */ + var reNoMatch = /($^)/; + + /** Used to match unescaped characters in compiled string literals. */ + var reUnescapedString = /['\n\r\u2028\u2029\\]/g; + + /** Used to match words to create compound words. */ + var reWords = (function() { + var upper = '[A-Z\\xc0-\\xd6\\xd8-\\xde]', + lower = '[a-z\\xdf-\\xf6\\xf8-\\xff]+'; + + return RegExp(upper + '+(?=' + upper + lower + ')|' + upper + '?' + lower + '|' + upper + '+|[0-9]+', 'g'); + }()); + + /** Used to assign default `context` object properties. */ + var contextProps = [ + 'Array', 'ArrayBuffer', 'Date', 'Error', 'Float32Array', 'Float64Array', + 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Math', 'Number', + 'Object', 'RegExp', 'Set', 'String', '_', 'clearTimeout', 'isFinite', + 'parseFloat', 'parseInt', 'setTimeout', 'TypeError', 'Uint8Array', + 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap' + ]; + + /** Used to make template sourceURLs easier to identify. */ + var templateCounter = -1; + + /** Used to identify `toStringTag` values of typed arrays. */ + var typedArrayTags = {}; + typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = + typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = + typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = + typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = + typedArrayTags[uint32Tag] = true; + typedArrayTags[argsTag] = typedArrayTags[arrayTag] = + typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = + typedArrayTags[dateTag] = typedArrayTags[errorTag] = + typedArrayTags[funcTag] = typedArrayTags[mapTag] = + typedArrayTags[numberTag] = typedArrayTags[objectTag] = + typedArrayTags[regexpTag] = typedArrayTags[setTag] = + typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false; + + /** Used to identify `toStringTag` values supported by `_.clone`. */ + var cloneableTags = {}; + cloneableTags[argsTag] = cloneableTags[arrayTag] = + cloneableTags[arrayBufferTag] = cloneableTags[boolTag] = + cloneableTags[dateTag] = cloneableTags[float32Tag] = + cloneableTags[float64Tag] = cloneableTags[int8Tag] = + cloneableTags[int16Tag] = cloneableTags[int32Tag] = + cloneableTags[numberTag] = cloneableTags[objectTag] = + cloneableTags[regexpTag] = cloneableTags[stringTag] = + cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = + cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; + cloneableTags[errorTag] = cloneableTags[funcTag] = + cloneableTags[mapTag] = cloneableTags[setTag] = + cloneableTags[weakMapTag] = false; + + /** Used to map latin-1 supplementary letters to basic latin letters. */ + var deburredLetters = { + '\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A', + '\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a', + '\xc7': 'C', '\xe7': 'c', + '\xd0': 'D', '\xf0': 'd', + '\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E', + '\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e', + '\xcC': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I', + '\xeC': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i', + '\xd1': 'N', '\xf1': 'n', + '\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O', + '\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o', + '\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U', + '\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u', + '\xdd': 'Y', '\xfd': 'y', '\xff': 'y', + '\xc6': 'Ae', '\xe6': 'ae', + '\xde': 'Th', '\xfe': 'th', + '\xdf': 'ss' + }; + + /** Used to map characters to HTML entities. */ + var htmlEscapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''', + '`': '`' + }; + + /** Used to map HTML entities to characters. */ + var htmlUnescapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + ''': "'", + '`': '`' + }; + + /** Used to determine if values are of the language type `Object`. */ + var objectTypes = { + 'function': true, + 'object': true + }; + + /** Used to escape characters for inclusion in compiled regexes. */ + var regexpEscapes = { + '0': 'x30', '1': 'x31', '2': 'x32', '3': 'x33', '4': 'x34', + '5': 'x35', '6': 'x36', '7': 'x37', '8': 'x38', '9': 'x39', + 'A': 'x41', 'B': 'x42', 'C': 'x43', 'D': 'x44', 'E': 'x45', 'F': 'x46', + 'a': 'x61', 'b': 'x62', 'c': 'x63', 'd': 'x64', 'e': 'x65', 'f': 'x66', + 'n': 'x6e', 'r': 'x72', 't': 'x74', 'u': 'x75', 'v': 'x76', 'x': 'x78' + }; + + /** Used to escape characters for inclusion in compiled string literals. */ + var stringEscapes = { + '\\': '\\', + "'": "'", + '\n': 'n', + '\r': 'r', + '\u2028': 'u2028', + '\u2029': 'u2029' + }; + + /** Detect free variable `exports`. */ + var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports; + + /** Detect free variable `module`. */ + var freeModule = objectTypes[typeof module] && module && !module.nodeType && module; + + /** Detect free variable `global` from Node.js. */ + var freeGlobal = freeExports && freeModule && typeof global == 'object' && global && global.Object && global; + + /** Detect free variable `self`. */ + var freeSelf = objectTypes[typeof self] && self && self.Object && self; + + /** Detect free variable `window`. */ + var freeWindow = objectTypes[typeof window] && window && window.Object && window; + + /** Detect the popular CommonJS extension `module.exports`. */ + var moduleExports = freeModule && freeModule.exports === freeExports && freeExports; + + /** + * Used as a reference to the global object. + * + * The `this` value is used if it's the global object to avoid Greasemonkey's + * restricted `window` object, otherwise the `window` object is used. + */ + var root = freeGlobal || ((freeWindow !== (this && this.window)) && freeWindow) || freeSelf || this; + + /*--------------------------------------------------------------------------*/ + + /** + * The base implementation of `compareAscending` which compares values and + * sorts them in ascending order without guaranteeing a stable sort. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {number} Returns the sort order indicator for `value`. + */ + function baseCompareAscending(value, other) { + if (value !== other) { + var valIsNull = value === null, + valIsUndef = value === undefined, + valIsReflexive = value === value; + + var othIsNull = other === null, + othIsUndef = other === undefined, + othIsReflexive = other === other; + + if ((value > other && !othIsNull) || !valIsReflexive || + (valIsNull && !othIsUndef && othIsReflexive) || + (valIsUndef && othIsReflexive)) { + return 1; + } + if ((value < other && !valIsNull) || !othIsReflexive || + (othIsNull && !valIsUndef && valIsReflexive) || + (othIsUndef && valIsReflexive)) { + return -1; + } + } + return 0; + } + + /** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for callback shorthands and `this` binding. + * + * @private + * @param {Array} array The array to search. + * @param {Function} predicate The function invoked per iteration. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseFindIndex(array, predicate, fromRight) { + var length = array.length, + index = fromRight ? length : -1; + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.indexOf` without support for binary searches. + * + * @private + * @param {Array} array The array to search. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOf(array, value, fromIndex) { + if (value !== value) { + return indexOfNaN(array, fromIndex); + } + var index = fromIndex - 1, + length = array.length; + + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.isFunction` without support for environments + * with incorrect `typeof` results. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + */ + function baseIsFunction(value) { + // Avoid a Chakra JIT bug in compatibility modes of IE 11. + // See https://github.com/jashkenas/underscore/issues/1621 for more details. + return typeof value == 'function' || false; + } + + /** + * Converts `value` to a string if it's not one. An empty string is returned + * for `null` or `undefined` values. + * + * @private + * @param {*} value The value to process. + * @returns {string} Returns the string. + */ + function baseToString(value) { + return value == null ? '' : (value + ''); + } + + /** + * Used by `_.trim` and `_.trimLeft` to get the index of the first character + * of `string` that is not found in `chars`. + * + * @private + * @param {string} string The string to inspect. + * @param {string} chars The characters to find. + * @returns {number} Returns the index of the first character not found in `chars`. + */ + function charsLeftIndex(string, chars) { + var index = -1, + length = string.length; + + while (++index < length && chars.indexOf(string.charAt(index)) > -1) {} + return index; + } + + /** + * Used by `_.trim` and `_.trimRight` to get the index of the last character + * of `string` that is not found in `chars`. + * + * @private + * @param {string} string The string to inspect. + * @param {string} chars The characters to find. + * @returns {number} Returns the index of the last character not found in `chars`. + */ + function charsRightIndex(string, chars) { + var index = string.length; + + while (index-- && chars.indexOf(string.charAt(index)) > -1) {} + return index; + } + + /** + * Used by `_.sortBy` to compare transformed elements of a collection and stable + * sort them in ascending order. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @returns {number} Returns the sort order indicator for `object`. + */ + function compareAscending(object, other) { + return baseCompareAscending(object.criteria, other.criteria) || (object.index - other.index); + } + + /** + * Used by `_.sortByOrder` to compare multiple properties of a value to another + * and stable sort them. + * + * If `orders` is unspecified, all valuess are sorted in ascending order. Otherwise, + * a value is sorted in ascending order if its corresponding order is "asc", and + * descending if "desc". + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {boolean[]} orders The order to sort by for each property. + * @returns {number} Returns the sort order indicator for `object`. + */ + function compareMultiple(object, other, orders) { + var index = -1, + objCriteria = object.criteria, + othCriteria = other.criteria, + length = objCriteria.length, + ordersLength = orders.length; + + while (++index < length) { + var result = baseCompareAscending(objCriteria[index], othCriteria[index]); + if (result) { + if (index >= ordersLength) { + return result; + } + var order = orders[index]; + return result * ((order === 'asc' || order === true) ? 1 : -1); + } + } + // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications + // that causes it, under certain circumstances, to provide the same value for + // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 + // for more details. + // + // This also ensures a stable sort in V8 and other engines. + // See https://code.google.com/p/v8/issues/detail?id=90 for more details. + return object.index - other.index; + } + + /** + * Used by `_.deburr` to convert latin-1 supplementary letters to basic latin letters. + * + * @private + * @param {string} letter The matched letter to deburr. + * @returns {string} Returns the deburred letter. + */ + function deburrLetter(letter) { + return deburredLetters[letter]; + } + + /** + * Used by `_.escape` to convert characters to HTML entities. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + function escapeHtmlChar(chr) { + return htmlEscapes[chr]; + } + + /** + * Used by `_.escapeRegExp` to escape characters for inclusion in compiled regexes. + * + * @private + * @param {string} chr The matched character to escape. + * @param {string} leadingChar The capture group for a leading character. + * @param {string} whitespaceChar The capture group for a whitespace character. + * @returns {string} Returns the escaped character. + */ + function escapeRegExpChar(chr, leadingChar, whitespaceChar) { + if (leadingChar) { + chr = regexpEscapes[chr]; + } else if (whitespaceChar) { + chr = stringEscapes[chr]; + } + return '\\' + chr; + } + + /** + * Used by `_.template` to escape characters for inclusion in compiled string literals. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + function escapeStringChar(chr) { + return '\\' + stringEscapes[chr]; + } + + /** + * Gets the index at which the first occurrence of `NaN` is found in `array`. + * + * @private + * @param {Array} array The array to search. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched `NaN`, else `-1`. + */ + function indexOfNaN(array, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 0 : -1); + + while ((fromRight ? index-- : ++index < length)) { + var other = array[index]; + if (other !== other) { + return index; + } + } + return -1; + } + + /** + * Checks if `value` is object-like. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + */ + function isObjectLike(value) { + return !!value && typeof value == 'object'; + } + + /** + * Used by `trimmedLeftIndex` and `trimmedRightIndex` to determine if a + * character code is whitespace. + * + * @private + * @param {number} charCode The character code to inspect. + * @returns {boolean} Returns `true` if `charCode` is whitespace, else `false`. + */ + function isSpace(charCode) { + return ((charCode <= 160 && (charCode >= 9 && charCode <= 13) || charCode == 32 || charCode == 160) || charCode == 5760 || charCode == 6158 || + (charCode >= 8192 && (charCode <= 8202 || charCode == 8232 || charCode == 8233 || charCode == 8239 || charCode == 8287 || charCode == 12288 || charCode == 65279))); + } + + /** + * Replaces all `placeholder` elements in `array` with an internal placeholder + * and returns an array of their indexes. + * + * @private + * @param {Array} array The array to modify. + * @param {*} placeholder The placeholder to replace. + * @returns {Array} Returns the new array of placeholder indexes. + */ + function replaceHolders(array, placeholder) { + var index = -1, + length = array.length, + resIndex = -1, + result = []; + + while (++index < length) { + if (array[index] === placeholder) { + array[index] = PLACEHOLDER; + result[++resIndex] = index; + } + } + return result; + } + + /** + * An implementation of `_.uniq` optimized for sorted arrays without support + * for callback shorthands and `this` binding. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The function invoked per iteration. + * @returns {Array} Returns the new duplicate-value-free array. + */ + function sortedUniq(array, iteratee) { + var seen, + index = -1, + length = array.length, + resIndex = -1, + result = []; + + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value, index, array) : value; + + if (!index || seen !== computed) { + seen = computed; + result[++resIndex] = value; + } + } + return result; + } + + /** + * Used by `_.trim` and `_.trimLeft` to get the index of the first non-whitespace + * character of `string`. + * + * @private + * @param {string} string The string to inspect. + * @returns {number} Returns the index of the first non-whitespace character. + */ + function trimmedLeftIndex(string) { + var index = -1, + length = string.length; + + while (++index < length && isSpace(string.charCodeAt(index))) {} + return index; + } + + /** + * Used by `_.trim` and `_.trimRight` to get the index of the last non-whitespace + * character of `string`. + * + * @private + * @param {string} string The string to inspect. + * @returns {number} Returns the index of the last non-whitespace character. + */ + function trimmedRightIndex(string) { + var index = string.length; + + while (index-- && isSpace(string.charCodeAt(index))) {} + return index; + } + + /** + * Used by `_.unescape` to convert HTML entities to characters. + * + * @private + * @param {string} chr The matched character to unescape. + * @returns {string} Returns the unescaped character. + */ + function unescapeHtmlChar(chr) { + return htmlUnescapes[chr]; + } + + /*--------------------------------------------------------------------------*/ + + /** + * Create a new pristine `lodash` function using the given `context` object. + * + * @static + * @memberOf _ + * @category Utility + * @param {Object} [context=root] The context object. + * @returns {Function} Returns a new `lodash` function. + * @example + * + * _.mixin({ 'foo': _.constant('foo') }); + * + * var lodash = _.runInContext(); + * lodash.mixin({ 'bar': lodash.constant('bar') }); + * + * _.isFunction(_.foo); + * // => true + * _.isFunction(_.bar); + * // => false + * + * lodash.isFunction(lodash.foo); + * // => false + * lodash.isFunction(lodash.bar); + * // => true + * + * // using `context` to mock `Date#getTime` use in `_.now` + * var mock = _.runInContext({ + * 'Date': function() { + * return { 'getTime': getTimeMock }; + * } + * }); + * + * // or creating a suped-up `defer` in Node.js + * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer; + */ + function runInContext(context) { + // Avoid issues with some ES3 environments that attempt to use values, named + // after built-in constructors like `Object`, for the creation of literals. + // ES5 clears this up by stating that literals must use built-in constructors. + // See https://es5.github.io/#x11.1.5 for more details. + context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root; + + /** Native constructor references. */ + var Array = context.Array, + Date = context.Date, + Error = context.Error, + Function = context.Function, + Math = context.Math, + Number = context.Number, + Object = context.Object, + RegExp = context.RegExp, + String = context.String, + TypeError = context.TypeError; + + /** Used for native method references. */ + var arrayProto = Array.prototype, + objectProto = Object.prototype, + stringProto = String.prototype; + + /** Used to resolve the decompiled source of functions. */ + var fnToString = Function.prototype.toString; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** Used to generate unique IDs. */ + var idCounter = 0; + + /** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ + var objToString = objectProto.toString; + + /** Used to restore the original `_` reference in `_.noConflict`. */ + var oldDash = root._; + + /** Used to detect if a method is native. */ + var reIsNative = RegExp('^' + + fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' + ); + + /** Native method references. */ + var ArrayBuffer = context.ArrayBuffer, + clearTimeout = context.clearTimeout, + parseFloat = context.parseFloat, + pow = Math.pow, + propertyIsEnumerable = objectProto.propertyIsEnumerable, + Set = getNative(context, 'Set'), + setTimeout = context.setTimeout, + splice = arrayProto.splice, + Uint8Array = context.Uint8Array, + WeakMap = getNative(context, 'WeakMap'); + + /* Native method references for those with the same name as other `lodash` methods. */ + var nativeCeil = Math.ceil, + nativeCreate = getNative(Object, 'create'), + nativeFloor = Math.floor, + nativeIsArray = getNative(Array, 'isArray'), + nativeIsFinite = context.isFinite, + nativeKeys = getNative(Object, 'keys'), + nativeMax = Math.max, + nativeMin = Math.min, + nativeNow = getNative(Date, 'now'), + nativeParseInt = context.parseInt, + nativeRandom = Math.random; + + /** Used as references for `-Infinity` and `Infinity`. */ + var NEGATIVE_INFINITY = Number.NEGATIVE_INFINITY, + POSITIVE_INFINITY = Number.POSITIVE_INFINITY; + + /** Used as references for the maximum length and index of an array. */ + var MAX_ARRAY_LENGTH = 4294967295, + MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1, + HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1; + + /** + * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer) + * of an array-like value. + */ + var MAX_SAFE_INTEGER = 9007199254740991; + + /** Used to store function metadata. */ + var metaMap = WeakMap && new WeakMap; + + /** Used to lookup unminified function names. */ + var realNames = {}; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` object which wraps `value` to enable implicit chaining. + * Methods that operate on and return arrays, collections, and functions can + * be chained together. Methods that retrieve a single value or may return a + * primitive value will automatically end the chain returning the unwrapped + * value. Explicit chaining may be enabled using `_.chain`. The execution of + * chained methods is lazy, that is, execution is deferred until `_#value` + * is implicitly or explicitly called. + * + * Lazy evaluation allows several methods to support shortcut fusion. Shortcut + * fusion is an optimization strategy which merge iteratee calls; this can help + * to avoid the creation of intermediate data structures and greatly reduce the + * number of iteratee executions. + * + * Chaining is supported in custom builds as long as the `_#value` method is + * directly or indirectly included in the build. + * + * In addition to lodash methods, wrappers have `Array` and `String` methods. + * + * The wrapper `Array` methods are: + * `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`, + * `splice`, and `unshift` + * + * The wrapper `String` methods are: + * `replace` and `split` + * + * The wrapper methods that support shortcut fusion are: + * `compact`, `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `filter`, + * `first`, `initial`, `last`, `map`, `pluck`, `reject`, `rest`, `reverse`, + * `slice`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, `toArray`, + * and `where` + * + * The chainable wrapper methods are: + * `after`, `ary`, `assign`, `at`, `before`, `bind`, `bindAll`, `bindKey`, + * `callback`, `chain`, `chunk`, `commit`, `compact`, `concat`, `constant`, + * `countBy`, `create`, `curry`, `debounce`, `defaults`, `defaultsDeep`, + * `defer`, `delay`, `difference`, `drop`, `dropRight`, `dropRightWhile`, + * `dropWhile`, `fill`, `filter`, `flatten`, `flattenDeep`, `flow`, `flowRight`, + * `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`, + * `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`, + * `invoke`, `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, + * `matchesProperty`, `memoize`, `merge`, `method`, `methodOf`, `mixin`, + * `modArgs`, `negate`, `omit`, `once`, `pairs`, `partial`, `partialRight`, + * `partition`, `pick`, `plant`, `pluck`, `property`, `propertyOf`, `pull`, + * `pullAt`, `push`, `range`, `rearg`, `reject`, `remove`, `rest`, `restParam`, + * `reverse`, `set`, `shuffle`, `slice`, `sort`, `sortBy`, `sortByAll`, + * `sortByOrder`, `splice`, `spread`, `take`, `takeRight`, `takeRightWhile`, + * `takeWhile`, `tap`, `throttle`, `thru`, `times`, `toArray`, `toPlainObject`, + * `transform`, `union`, `uniq`, `unshift`, `unzip`, `unzipWith`, `values`, + * `valuesIn`, `where`, `without`, `wrap`, `xor`, `zip`, `zipObject`, `zipWith` + * + * The wrapper methods that are **not** chainable by default are: + * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clone`, `cloneDeep`, + * `deburr`, `endsWith`, `escape`, `escapeRegExp`, `every`, `find`, `findIndex`, + * `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `findWhere`, `first`, + * `floor`, `get`, `gt`, `gte`, `has`, `identity`, `includes`, `indexOf`, + * `inRange`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`, + * `isEmpty`, `isEqual`, `isError`, `isFinite` `isFunction`, `isMatch`, + * `isNative`, `isNaN`, `isNull`, `isNumber`, `isObject`, `isPlainObject`, + * `isRegExp`, `isString`, `isUndefined`, `isTypedArray`, `join`, `kebabCase`, + * `last`, `lastIndexOf`, `lt`, `lte`, `max`, `min`, `noConflict`, `noop`, + * `now`, `pad`, `padLeft`, `padRight`, `parseInt`, `pop`, `random`, `reduce`, + * `reduceRight`, `repeat`, `result`, `round`, `runInContext`, `shift`, `size`, + * `snakeCase`, `some`, `sortedIndex`, `sortedLastIndex`, `startCase`, + * `startsWith`, `sum`, `template`, `trim`, `trimLeft`, `trimRight`, `trunc`, + * `unescape`, `uniqueId`, `value`, and `words` + * + * The wrapper method `sample` will return a wrapped value when `n` is provided, + * otherwise an unwrapped value is returned. + * + * @name _ + * @constructor + * @category Chain + * @param {*} value The value to wrap in a `lodash` instance. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var wrapped = _([1, 2, 3]); + * + * // returns an unwrapped value + * wrapped.reduce(function(total, n) { + * return total + n; + * }); + * // => 6 + * + * // returns a wrapped value + * var squares = wrapped.map(function(n) { + * return n * n; + * }); + * + * _.isArray(squares); + * // => false + * + * _.isArray(squares.value()); + * // => true + */ + function lodash(value) { + if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { + if (value instanceof LodashWrapper) { + return value; + } + if (hasOwnProperty.call(value, '__chain__') && hasOwnProperty.call(value, '__wrapped__')) { + return wrapperClone(value); + } + } + return new LodashWrapper(value); + } + + /** + * The function whose prototype all chaining wrappers inherit from. + * + * @private + */ + function baseLodash() { + // No operation performed. + } + + /** + * The base constructor for creating `lodash` wrapper objects. + * + * @private + * @param {*} value The value to wrap. + * @param {boolean} [chainAll] Enable chaining for all wrapper methods. + * @param {Array} [actions=[]] Actions to peform to resolve the unwrapped value. + */ + function LodashWrapper(value, chainAll, actions) { + this.__wrapped__ = value; + this.__actions__ = actions || []; + this.__chain__ = !!chainAll; + } + + /** + * An object environment feature flags. + * + * @static + * @memberOf _ + * @type Object + */ + var support = lodash.support = {}; + + /** + * By default, the template delimiters used by lodash are like those in + * embedded Ruby (ERB). Change the following template settings to use + * alternative delimiters. + * + * @static + * @memberOf _ + * @type Object + */ + lodash.templateSettings = { + + /** + * Used to detect `data` property values to be HTML-escaped. + * + * @memberOf _.templateSettings + * @type RegExp + */ + 'escape': reEscape, + + /** + * Used to detect code to be evaluated. + * + * @memberOf _.templateSettings + * @type RegExp + */ + 'evaluate': reEvaluate, + + /** + * Used to detect `data` property values to inject. + * + * @memberOf _.templateSettings + * @type RegExp + */ + 'interpolate': reInterpolate, + + /** + * Used to reference the data object in the template text. + * + * @memberOf _.templateSettings + * @type string + */ + 'variable': '', + + /** + * Used to import variables into the compiled template. + * + * @memberOf _.templateSettings + * @type Object + */ + 'imports': { + + /** + * A reference to the `lodash` function. + * + * @memberOf _.templateSettings.imports + * @type Function + */ + '_': lodash + } + }; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. + * + * @private + * @param {*} value The value to wrap. + */ + function LazyWrapper(value) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__dir__ = 1; + this.__filtered__ = false; + this.__iteratees__ = []; + this.__takeCount__ = POSITIVE_INFINITY; + this.__views__ = []; + } + + /** + * Creates a clone of the lazy wrapper object. + * + * @private + * @name clone + * @memberOf LazyWrapper + * @returns {Object} Returns the cloned `LazyWrapper` object. + */ + function lazyClone() { + var result = new LazyWrapper(this.__wrapped__); + result.__actions__ = arrayCopy(this.__actions__); + result.__dir__ = this.__dir__; + result.__filtered__ = this.__filtered__; + result.__iteratees__ = arrayCopy(this.__iteratees__); + result.__takeCount__ = this.__takeCount__; + result.__views__ = arrayCopy(this.__views__); + return result; + } + + /** + * Reverses the direction of lazy iteration. + * + * @private + * @name reverse + * @memberOf LazyWrapper + * @returns {Object} Returns the new reversed `LazyWrapper` object. + */ + function lazyReverse() { + if (this.__filtered__) { + var result = new LazyWrapper(this); + result.__dir__ = -1; + result.__filtered__ = true; + } else { + result = this.clone(); + result.__dir__ *= -1; + } + return result; + } + + /** + * Extracts the unwrapped value from its lazy wrapper. + * + * @private + * @name value + * @memberOf LazyWrapper + * @returns {*} Returns the unwrapped value. + */ + function lazyValue() { + var array = this.__wrapped__.value(), + dir = this.__dir__, + isArr = isArray(array), + isRight = dir < 0, + arrLength = isArr ? array.length : 0, + view = getView(0, arrLength, this.__views__), + start = view.start, + end = view.end, + length = end - start, + index = isRight ? end : (start - 1), + iteratees = this.__iteratees__, + iterLength = iteratees.length, + resIndex = 0, + takeCount = nativeMin(length, this.__takeCount__); + + if (!isArr || arrLength < LARGE_ARRAY_SIZE || (arrLength == length && takeCount == length)) { + return baseWrapperValue((isRight && isArr) ? array.reverse() : array, this.__actions__); + } + var result = []; + + outer: + while (length-- && resIndex < takeCount) { + index += dir; + + var iterIndex = -1, + value = array[index]; + + while (++iterIndex < iterLength) { + var data = iteratees[iterIndex], + iteratee = data.iteratee, + type = data.type, + computed = iteratee(value); + + if (type == LAZY_MAP_FLAG) { + value = computed; + } else if (!computed) { + if (type == LAZY_FILTER_FLAG) { + continue outer; + } else { + break outer; + } + } + } + result[resIndex++] = value; + } + return result; + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a cache object to store key/value pairs. + * + * @private + * @static + * @name Cache + * @memberOf _.memoize + */ + function MapCache() { + this.__data__ = {}; + } + + /** + * Removes `key` and its value from the cache. + * + * @private + * @name delete + * @memberOf _.memoize.Cache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed successfully, else `false`. + */ + function mapDelete(key) { + return this.has(key) && delete this.__data__[key]; + } + + /** + * Gets the cached value for `key`. + * + * @private + * @name get + * @memberOf _.memoize.Cache + * @param {string} key The key of the value to get. + * @returns {*} Returns the cached value. + */ + function mapGet(key) { + return key == '__proto__' ? undefined : this.__data__[key]; + } + + /** + * Checks if a cached value for `key` exists. + * + * @private + * @name has + * @memberOf _.memoize.Cache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function mapHas(key) { + return key != '__proto__' && hasOwnProperty.call(this.__data__, key); + } + + /** + * Sets `value` to `key` of the cache. + * + * @private + * @name set + * @memberOf _.memoize.Cache + * @param {string} key The key of the value to cache. + * @param {*} value The value to cache. + * @returns {Object} Returns the cache object. + */ + function mapSet(key, value) { + if (key != '__proto__') { + this.__data__[key] = value; + } + return this; + } + + /*------------------------------------------------------------------------*/ + + /** + * + * Creates a cache object to store unique values. + * + * @private + * @param {Array} [values] The values to cache. + */ + function SetCache(values) { + var length = values ? values.length : 0; + + this.data = { 'hash': nativeCreate(null), 'set': new Set }; + while (length--) { + this.push(values[length]); + } + } + + /** + * Checks if `value` is in `cache` mimicking the return signature of + * `_.indexOf` by returning `0` if the value is found, else `-1`. + * + * @private + * @param {Object} cache The cache to search. + * @param {*} value The value to search for. + * @returns {number} Returns `0` if `value` is found, else `-1`. + */ + function cacheIndexOf(cache, value) { + var data = cache.data, + result = (typeof value == 'string' || isObject(value)) ? data.set.has(value) : data.hash[value]; + + return result ? 0 : -1; + } + + /** + * Adds `value` to the cache. + * + * @private + * @name push + * @memberOf SetCache + * @param {*} value The value to cache. + */ + function cachePush(value) { + var data = this.data; + if (typeof value == 'string' || isObject(value)) { + data.set.add(value); + } else { + data.hash[value] = true; + } + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a new array joining `array` with `other`. + * + * @private + * @param {Array} array The array to join. + * @param {Array} other The other array to join. + * @returns {Array} Returns the new concatenated array. + */ + function arrayConcat(array, other) { + var index = -1, + length = array.length, + othIndex = -1, + othLength = other.length, + result = Array(length + othLength); + + while (++index < length) { + result[index] = array[index]; + } + while (++othIndex < othLength) { + result[index++] = other[othIndex]; + } + return result; + } + + /** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ + function arrayCopy(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; + } + + /** + * A specialized version of `_.forEach` for arrays without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.forEachRight` for arrays without support for + * callback shorthands and `this` binding. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEachRight(array, iteratee) { + var length = array.length; + + while (length--) { + if (iteratee(array[length], length, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.every` for arrays without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + */ + function arrayEvery(array, predicate) { + var index = -1, + length = array.length; + + while (++index < length) { + if (!predicate(array[index], index, array)) { + return false; + } + } + return true; + } + + /** + * A specialized version of `baseExtremum` for arrays which invokes `iteratee` + * with one argument: (value). + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} comparator The function used to compare values. + * @param {*} exValue The initial extremum value. + * @returns {*} Returns the extremum value. + */ + function arrayExtremum(array, iteratee, comparator, exValue) { + var index = -1, + length = array.length, + computed = exValue, + result = computed; + + while (++index < length) { + var value = array[index], + current = +iteratee(value); + + if (comparator(current, computed)) { + computed = current; + result = value; + } + } + return result; + } + + /** + * A specialized version of `_.filter` for arrays without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function arrayFilter(array, predicate) { + var index = -1, + length = array.length, + resIndex = -1, + result = []; + + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result[++resIndex] = value; + } + } + return result; + } + + /** + * A specialized version of `_.map` for arrays without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function arrayMap(array, iteratee) { + var index = -1, + length = array.length, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; + } + + /** + * Appends the elements of `values` to `array`. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to append. + * @returns {Array} Returns `array`. + */ + function arrayPush(array, values) { + var index = -1, + length = values.length, + offset = array.length; + + while (++index < length) { + array[offset + index] = values[index]; + } + return array; + } + + /** + * A specialized version of `_.reduce` for arrays without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initFromArray] Specify using the first element of `array` + * as the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduce(array, iteratee, accumulator, initFromArray) { + var index = -1, + length = array.length; + + if (initFromArray && length) { + accumulator = array[++index]; + } + while (++index < length) { + accumulator = iteratee(accumulator, array[index], index, array); + } + return accumulator; + } + + /** + * A specialized version of `_.reduceRight` for arrays without support for + * callback shorthands and `this` binding. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initFromArray] Specify using the last element of `array` + * as the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduceRight(array, iteratee, accumulator, initFromArray) { + var length = array.length; + if (initFromArray && length) { + accumulator = array[--length]; + } + while (length--) { + accumulator = iteratee(accumulator, array[length], length, array); + } + return accumulator; + } + + /** + * A specialized version of `_.some` for arrays without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function arraySome(array, predicate) { + var index = -1, + length = array.length; + + while (++index < length) { + if (predicate(array[index], index, array)) { + return true; + } + } + return false; + } + + /** + * A specialized version of `_.sum` for arrays without support for callback + * shorthands and `this` binding.. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {number} Returns the sum. + */ + function arraySum(array, iteratee) { + var length = array.length, + result = 0; + + while (length--) { + result += +iteratee(array[length]) || 0; + } + return result; + } + + /** + * Used by `_.defaults` to customize its `_.assign` use. + * + * @private + * @param {*} objectValue The destination object property value. + * @param {*} sourceValue The source object property value. + * @returns {*} Returns the value to assign to the destination object. + */ + function assignDefaults(objectValue, sourceValue) { + return objectValue === undefined ? sourceValue : objectValue; + } + + /** + * Used by `_.template` to customize its `_.assign` use. + * + * **Note:** This function is like `assignDefaults` except that it ignores + * inherited property values when checking if a property is `undefined`. + * + * @private + * @param {*} objectValue The destination object property value. + * @param {*} sourceValue The source object property value. + * @param {string} key The key associated with the object and source values. + * @param {Object} object The destination object. + * @returns {*} Returns the value to assign to the destination object. + */ + function assignOwnDefaults(objectValue, sourceValue, key, object) { + return (objectValue === undefined || !hasOwnProperty.call(object, key)) + ? sourceValue + : objectValue; + } + + /** + * A specialized version of `_.assign` for customizing assigned values without + * support for argument juggling, multiple sources, and `this` binding `customizer` + * functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {Function} customizer The function to customize assigned values. + * @returns {Object} Returns `object`. + */ + function assignWith(object, source, customizer) { + var index = -1, + props = keys(source), + length = props.length; + + while (++index < length) { + var key = props[index], + value = object[key], + result = customizer(value, source[key], key, object, source); + + if ((result === result ? (result !== value) : (value === value)) || + (value === undefined && !(key in object))) { + object[key] = result; + } + } + return object; + } + + /** + * The base implementation of `_.assign` without support for argument juggling, + * multiple sources, and `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssign(object, source) { + return source == null + ? object + : baseCopy(source, keys(source), object); + } + + /** + * The base implementation of `_.at` without support for string collections + * and individual key arguments. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {number[]|string[]} props The property names or indexes of elements to pick. + * @returns {Array} Returns the new array of picked elements. + */ + function baseAt(collection, props) { + var index = -1, + isNil = collection == null, + isArr = !isNil && isArrayLike(collection), + length = isArr ? collection.length : 0, + propsLength = props.length, + result = Array(propsLength); + + while(++index < propsLength) { + var key = props[index]; + if (isArr) { + result[index] = isIndex(key, length) ? collection[key] : undefined; + } else { + result[index] = isNil ? undefined : collection[key]; + } + } + return result; + } + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property names to copy. + * @param {Object} [object={}] The object to copy properties to. + * @returns {Object} Returns `object`. + */ + function baseCopy(source, props, object) { + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + object[key] = source[key]; + } + return object; + } + + /** + * The base implementation of `_.callback` which supports specifying the + * number of arguments to provide to `func`. + * + * @private + * @param {*} [func=_.identity] The value to convert to a callback. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {number} [argCount] The number of arguments to provide to `func`. + * @returns {Function} Returns the callback. + */ + function baseCallback(func, thisArg, argCount) { + var type = typeof func; + if (type == 'function') { + return thisArg === undefined + ? func + : bindCallback(func, thisArg, argCount); + } + if (func == null) { + return identity; + } + if (type == 'object') { + return baseMatches(func); + } + return thisArg === undefined + ? property(func) + : baseMatchesProperty(func, thisArg); + } + + /** + * The base implementation of `_.clone` without support for argument juggling + * and `this` binding `customizer` functions. + * + * @private + * @param {*} value The value to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @param {Function} [customizer] The function to customize cloning values. + * @param {string} [key] The key of `value`. + * @param {Object} [object] The object `value` belongs to. + * @param {Array} [stackA=[]] Tracks traversed source objects. + * @param {Array} [stackB=[]] Associates clones with source counterparts. + * @returns {*} Returns the cloned value. + */ + function baseClone(value, isDeep, customizer, key, object, stackA, stackB) { + var result; + if (customizer) { + result = object ? customizer(value, key, object) : customizer(value); + } + if (result !== undefined) { + return result; + } + if (!isObject(value)) { + return value; + } + var isArr = isArray(value); + if (isArr) { + result = initCloneArray(value); + if (!isDeep) { + return arrayCopy(value, result); + } + } else { + var tag = objToString.call(value), + isFunc = tag == funcTag; + + if (tag == objectTag || tag == argsTag || (isFunc && !object)) { + result = initCloneObject(isFunc ? {} : value); + if (!isDeep) { + return baseAssign(result, value); + } + } else { + return cloneableTags[tag] + ? initCloneByTag(value, tag, isDeep) + : (object ? value : {}); + } + } + // Check for circular references and return its corresponding clone. + stackA || (stackA = []); + stackB || (stackB = []); + + var length = stackA.length; + while (length--) { + if (stackA[length] == value) { + return stackB[length]; + } + } + // Add the source value to the stack of traversed objects and associate it with its clone. + stackA.push(value); + stackB.push(result); + + // Recursively populate clone (susceptible to call stack limits). + (isArr ? arrayEach : baseForOwn)(value, function(subValue, key) { + result[key] = baseClone(subValue, isDeep, customizer, key, value, stackA, stackB); + }); + return result; + } + + /** + * The base implementation of `_.create` without support for assigning + * properties to the created object. + * + * @private + * @param {Object} prototype The object to inherit from. + * @returns {Object} Returns the new object. + */ + var baseCreate = (function() { + function object() {} + return function(prototype) { + if (isObject(prototype)) { + object.prototype = prototype; + var result = new object; + object.prototype = undefined; + } + return result || {}; + }; + }()); + + /** + * The base implementation of `_.delay` and `_.defer` which accepts an index + * of where to slice the arguments to provide to `func`. + * + * @private + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {Object} args The arguments provide to `func`. + * @returns {number} Returns the timer id. + */ + function baseDelay(func, wait, args) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return setTimeout(function() { func.apply(undefined, args); }, wait); + } + + /** + * The base implementation of `_.difference` which accepts a single array + * of values to exclude. + * + * @private + * @param {Array} array The array to inspect. + * @param {Array} values The values to exclude. + * @returns {Array} Returns the new array of filtered values. + */ + function baseDifference(array, values) { + var length = array ? array.length : 0, + result = []; + + if (!length) { + return result; + } + var index = -1, + indexOf = getIndexOf(), + isCommon = indexOf == baseIndexOf, + cache = (isCommon && values.length >= LARGE_ARRAY_SIZE) ? createCache(values) : null, + valuesLength = values.length; + + if (cache) { + indexOf = cacheIndexOf; + isCommon = false; + values = cache; + } + outer: + while (++index < length) { + var value = array[index]; + + if (isCommon && value === value) { + var valuesIndex = valuesLength; + while (valuesIndex--) { + if (values[valuesIndex] === value) { + continue outer; + } + } + result.push(value); + } + else if (indexOf(values, value, 0) < 0) { + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.forEach` without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object|string} Returns `collection`. + */ + var baseEach = createBaseEach(baseForOwn); + + /** + * The base implementation of `_.forEachRight` without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object|string} Returns `collection`. + */ + var baseEachRight = createBaseEach(baseForOwnRight, true); + + /** + * The base implementation of `_.every` without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false` + */ + function baseEvery(collection, predicate) { + var result = true; + baseEach(collection, function(value, index, collection) { + result = !!predicate(value, index, collection); + return result; + }); + return result; + } + + /** + * Gets the extremum value of `collection` invoking `iteratee` for each value + * in `collection` to generate the criterion by which the value is ranked. + * The `iteratee` is invoked with three arguments: (value, index|key, collection). + * + * @private + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} comparator The function used to compare values. + * @param {*} exValue The initial extremum value. + * @returns {*} Returns the extremum value. + */ + function baseExtremum(collection, iteratee, comparator, exValue) { + var computed = exValue, + result = computed; + + baseEach(collection, function(value, index, collection) { + var current = +iteratee(value, index, collection); + if (comparator(current, computed) || (current === exValue && current === result)) { + computed = current; + result = value; + } + }); + return result; + } + + /** + * The base implementation of `_.fill` without an iteratee call guard. + * + * @private + * @param {Array} array The array to fill. + * @param {*} value The value to fill `array` with. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns `array`. + */ + function baseFill(array, value, start, end) { + var length = array.length; + + start = start == null ? 0 : (+start || 0); + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = (end === undefined || end > length) ? length : (+end || 0); + if (end < 0) { + end += length; + } + length = start > end ? 0 : (end >>> 0); + start >>>= 0; + + while (start < length) { + array[start++] = value; + } + return array; + } + + /** + * The base implementation of `_.filter` without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function baseFilter(collection, predicate) { + var result = []; + baseEach(collection, function(value, index, collection) { + if (predicate(value, index, collection)) { + result.push(value); + } + }); + return result; + } + + /** + * The base implementation of `_.find`, `_.findLast`, `_.findKey`, and `_.findLastKey`, + * without support for callback shorthands and `this` binding, which iterates + * over `collection` using the provided `eachFunc`. + * + * @private + * @param {Array|Object|string} collection The collection to search. + * @param {Function} predicate The function invoked per iteration. + * @param {Function} eachFunc The function to iterate over `collection`. + * @param {boolean} [retKey] Specify returning the key of the found element + * instead of the element itself. + * @returns {*} Returns the found element or its key, else `undefined`. + */ + function baseFind(collection, predicate, eachFunc, retKey) { + var result; + eachFunc(collection, function(value, key, collection) { + if (predicate(value, key, collection)) { + result = retKey ? key : value; + return false; + } + }); + return result; + } + + /** + * The base implementation of `_.flatten` with added support for restricting + * flattening and specifying the start index. + * + * @private + * @param {Array} array The array to flatten. + * @param {boolean} [isDeep] Specify a deep flatten. + * @param {boolean} [isStrict] Restrict flattening to arrays-like objects. + * @param {Array} [result=[]] The initial result value. + * @returns {Array} Returns the new flattened array. + */ + function baseFlatten(array, isDeep, isStrict, result) { + result || (result = []); + + var index = -1, + length = array.length; + + while (++index < length) { + var value = array[index]; + if (isObjectLike(value) && isArrayLike(value) && + (isStrict || isArray(value) || isArguments(value))) { + if (isDeep) { + // Recursively flatten arrays (susceptible to call stack limits). + baseFlatten(value, isDeep, isStrict, result); + } else { + arrayPush(result, value); + } + } else if (!isStrict) { + result[result.length] = value; + } + } + return result; + } + + /** + * The base implementation of `baseForIn` and `baseForOwn` which iterates + * over `object` properties returned by `keysFunc` invoking `iteratee` for + * each property. Iteratee functions may exit iteration early by explicitly + * returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + /** + * This function is like `baseFor` except that it iterates over properties + * in the opposite order. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseForRight = createBaseFor(true); + + /** + * The base implementation of `_.forIn` without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForIn(object, iteratee) { + return baseFor(object, iteratee, keysIn); + } + + /** + * The base implementation of `_.forOwn` without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwn(object, iteratee) { + return baseFor(object, iteratee, keys); + } + + /** + * The base implementation of `_.forOwnRight` without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwnRight(object, iteratee) { + return baseForRight(object, iteratee, keys); + } + + /** + * The base implementation of `_.functions` which creates an array of + * `object` function property names filtered from those provided. + * + * @private + * @param {Object} object The object to inspect. + * @param {Array} props The property names to filter. + * @returns {Array} Returns the new array of filtered property names. + */ + function baseFunctions(object, props) { + var index = -1, + length = props.length, + resIndex = -1, + result = []; + + while (++index < length) { + var key = props[index]; + if (isFunction(object[key])) { + result[++resIndex] = key; + } + } + return result; + } + + /** + * The base implementation of `get` without support for string paths + * and default values. + * + * @private + * @param {Object} object The object to query. + * @param {Array} path The path of the property to get. + * @param {string} [pathKey] The key representation of path. + * @returns {*} Returns the resolved value. + */ + function baseGet(object, path, pathKey) { + if (object == null) { + return; + } + if (pathKey !== undefined && pathKey in toObject(object)) { + path = [pathKey]; + } + var index = 0, + length = path.length; + + while (object != null && index < length) { + object = object[path[index++]]; + } + return (index && index == length) ? object : undefined; + } + + /** + * The base implementation of `_.isEqual` without support for `this` binding + * `customizer` functions. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {Function} [customizer] The function to customize comparing values. + * @param {boolean} [isLoose] Specify performing partial comparisons. + * @param {Array} [stackA] Tracks traversed `value` objects. + * @param {Array} [stackB] Tracks traversed `other` objects. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + */ + function baseIsEqual(value, other, customizer, isLoose, stackA, stackB) { + if (value === other) { + return true; + } + if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) { + return value !== value && other !== other; + } + return baseIsEqualDeep(value, other, baseIsEqual, customizer, isLoose, stackA, stackB); + } + + /** + * A specialized version of `baseIsEqual` for arrays and objects which performs + * deep comparisons and tracks traversed objects enabling objects with circular + * references to be compared. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Function} [customizer] The function to customize comparing objects. + * @param {boolean} [isLoose] Specify performing partial comparisons. + * @param {Array} [stackA=[]] Tracks traversed `value` objects. + * @param {Array} [stackB=[]] Tracks traversed `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseIsEqualDeep(object, other, equalFunc, customizer, isLoose, stackA, stackB) { + var objIsArr = isArray(object), + othIsArr = isArray(other), + objTag = arrayTag, + othTag = arrayTag; + + if (!objIsArr) { + objTag = objToString.call(object); + if (objTag == argsTag) { + objTag = objectTag; + } else if (objTag != objectTag) { + objIsArr = isTypedArray(object); + } + } + if (!othIsArr) { + othTag = objToString.call(other); + if (othTag == argsTag) { + othTag = objectTag; + } else if (othTag != objectTag) { + othIsArr = isTypedArray(other); + } + } + var objIsObj = objTag == objectTag, + othIsObj = othTag == objectTag, + isSameTag = objTag == othTag; + + if (isSameTag && !(objIsArr || objIsObj)) { + return equalByTag(object, other, objTag); + } + if (!isLoose) { + var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), + othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); + + if (objIsWrapped || othIsWrapped) { + return equalFunc(objIsWrapped ? object.value() : object, othIsWrapped ? other.value() : other, customizer, isLoose, stackA, stackB); + } + } + if (!isSameTag) { + return false; + } + // Assume cyclic values are equal. + // For more information on detecting circular references see https://es5.github.io/#JO. + stackA || (stackA = []); + stackB || (stackB = []); + + var length = stackA.length; + while (length--) { + if (stackA[length] == object) { + return stackB[length] == other; + } + } + // Add `object` and `other` to the stack of traversed objects. + stackA.push(object); + stackB.push(other); + + var result = (objIsArr ? equalArrays : equalObjects)(object, other, equalFunc, customizer, isLoose, stackA, stackB); + + stackA.pop(); + stackB.pop(); + + return result; + } + + /** + * The base implementation of `_.isMatch` without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Object} object The object to inspect. + * @param {Array} matchData The propery names, values, and compare flags to match. + * @param {Function} [customizer] The function to customize comparing objects. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + */ + function baseIsMatch(object, matchData, customizer) { + var index = matchData.length, + length = index, + noCustomizer = !customizer; + + if (object == null) { + return !length; + } + object = toObject(object); + while (index--) { + var data = matchData[index]; + if ((noCustomizer && data[2]) + ? data[1] !== object[data[0]] + : !(data[0] in object) + ) { + return false; + } + } + while (++index < length) { + data = matchData[index]; + var key = data[0], + objValue = object[key], + srcValue = data[1]; + + if (noCustomizer && data[2]) { + if (objValue === undefined && !(key in object)) { + return false; + } + } else { + var result = customizer ? customizer(objValue, srcValue, key) : undefined; + if (!(result === undefined ? baseIsEqual(srcValue, objValue, customizer, true) : result)) { + return false; + } + } + } + return true; + } + + /** + * The base implementation of `_.map` without support for callback shorthands + * and `this` binding. + * + * @private + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function baseMap(collection, iteratee) { + var index = -1, + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value, key, collection) { + result[++index] = iteratee(value, key, collection); + }); + return result; + } + + /** + * The base implementation of `_.matches` which does not clone `source`. + * + * @private + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new function. + */ + function baseMatches(source) { + var matchData = getMatchData(source); + if (matchData.length == 1 && matchData[0][2]) { + var key = matchData[0][0], + value = matchData[0][1]; + + return function(object) { + if (object == null) { + return false; + } + return object[key] === value && (value !== undefined || (key in toObject(object))); + }; + } + return function(object) { + return baseIsMatch(object, matchData); + }; + } + + /** + * The base implementation of `_.matchesProperty` which does not clone `srcValue`. + * + * @private + * @param {string} path The path of the property to get. + * @param {*} srcValue The value to compare. + * @returns {Function} Returns the new function. + */ + function baseMatchesProperty(path, srcValue) { + var isArr = isArray(path), + isCommon = isKey(path) && isStrictComparable(srcValue), + pathKey = (path + ''); + + path = toPath(path); + return function(object) { + if (object == null) { + return false; + } + var key = pathKey; + object = toObject(object); + if ((isArr || !isCommon) && !(key in object)) { + object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1)); + if (object == null) { + return false; + } + key = last(path); + object = toObject(object); + } + return object[key] === srcValue + ? (srcValue !== undefined || (key in object)) + : baseIsEqual(srcValue, object[key], undefined, true); + }; + } + + /** + * The base implementation of `_.merge` without support for argument juggling, + * multiple sources, and `this` binding `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {Function} [customizer] The function to customize merged values. + * @param {Array} [stackA=[]] Tracks traversed source objects. + * @param {Array} [stackB=[]] Associates values with source counterparts. + * @returns {Object} Returns `object`. + */ + function baseMerge(object, source, customizer, stackA, stackB) { + if (!isObject(object)) { + return object; + } + var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)), + props = isSrcArr ? undefined : keys(source); + + arrayEach(props || source, function(srcValue, key) { + if (props) { + key = srcValue; + srcValue = source[key]; + } + if (isObjectLike(srcValue)) { + stackA || (stackA = []); + stackB || (stackB = []); + baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB); + } + else { + var value = object[key], + result = customizer ? customizer(value, srcValue, key, object, source) : undefined, + isCommon = result === undefined; + + if (isCommon) { + result = srcValue; + } + if ((result !== undefined || (isSrcArr && !(key in object))) && + (isCommon || (result === result ? (result !== value) : (value === value)))) { + object[key] = result; + } + } + }); + return object; + } + + /** + * A specialized version of `baseMerge` for arrays and objects which performs + * deep merges and tracks traversed objects enabling objects with circular + * references to be merged. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {string} key The key of the value to merge. + * @param {Function} mergeFunc The function to merge values. + * @param {Function} [customizer] The function to customize merged values. + * @param {Array} [stackA=[]] Tracks traversed source objects. + * @param {Array} [stackB=[]] Associates values with source counterparts. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) { + var length = stackA.length, + srcValue = source[key]; + + while (length--) { + if (stackA[length] == srcValue) { + object[key] = stackB[length]; + return; + } + } + var value = object[key], + result = customizer ? customizer(value, srcValue, key, object, source) : undefined, + isCommon = result === undefined; + + if (isCommon) { + result = srcValue; + if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) { + result = isArray(value) + ? value + : (isArrayLike(value) ? arrayCopy(value) : []); + } + else if (isPlainObject(srcValue) || isArguments(srcValue)) { + result = isArguments(value) + ? toPlainObject(value) + : (isPlainObject(value) ? value : {}); + } + else { + isCommon = false; + } + } + // Add the source value to the stack of traversed objects and associate + // it with its merged value. + stackA.push(srcValue); + stackB.push(result); + + if (isCommon) { + // Recursively merge objects and arrays (susceptible to call stack limits). + object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB); + } else if (result === result ? (result !== value) : (value === value)) { + object[key] = result; + } + } + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; + }; + } + + /** + * A specialized version of `baseProperty` which supports deep paths. + * + * @private + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new function. + */ + function basePropertyDeep(path) { + var pathKey = (path + ''); + path = toPath(path); + return function(object) { + return baseGet(object, path, pathKey); + }; + } + + /** + * The base implementation of `_.pullAt` without support for individual + * index arguments and capturing the removed elements. + * + * @private + * @param {Array} array The array to modify. + * @param {number[]} indexes The indexes of elements to remove. + * @returns {Array} Returns `array`. + */ + function basePullAt(array, indexes) { + var length = array ? indexes.length : 0; + while (length--) { + var index = indexes[length]; + if (index != previous && isIndex(index)) { + var previous = index; + splice.call(array, index, 1); + } + } + return array; + } + + /** + * The base implementation of `_.random` without support for argument juggling + * and returning floating-point numbers. + * + * @private + * @param {number} min The minimum possible value. + * @param {number} max The maximum possible value. + * @returns {number} Returns the random number. + */ + function baseRandom(min, max) { + return min + nativeFloor(nativeRandom() * (max - min + 1)); + } + + /** + * The base implementation of `_.reduce` and `_.reduceRight` without support + * for callback shorthands and `this` binding, which iterates over `collection` + * using the provided `eachFunc`. + * + * @private + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} accumulator The initial value. + * @param {boolean} initFromCollection Specify using the first or last element + * of `collection` as the initial value. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the accumulated value. + */ + function baseReduce(collection, iteratee, accumulator, initFromCollection, eachFunc) { + eachFunc(collection, function(value, index, collection) { + accumulator = initFromCollection + ? (initFromCollection = false, value) + : iteratee(accumulator, value, index, collection); + }); + return accumulator; + } + + /** + * The base implementation of `setData` without support for hot loop detection. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var baseSetData = !metaMap ? identity : function(func, data) { + metaMap.set(func, data); + return func; + }; + + /** + * The base implementation of `_.slice` without an iteratee call guard. + * + * @private + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function baseSlice(array, start, end) { + var index = -1, + length = array.length; + + start = start == null ? 0 : (+start || 0); + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = (end === undefined || end > length) ? length : (+end || 0); + if (end < 0) { + end += length; + } + length = start > end ? 0 : ((end - start) >>> 0); + start >>>= 0; + + var result = Array(length); + while (++index < length) { + result[index] = array[index + start]; + } + return result; + } + + /** + * The base implementation of `_.some` without support for callback shorthands + * and `this` binding. + * + * @private + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function baseSome(collection, predicate) { + var result; + + baseEach(collection, function(value, index, collection) { + result = predicate(value, index, collection); + return !result; + }); + return !!result; + } + + /** + * The base implementation of `_.sortBy` which uses `comparer` to define + * the sort order of `array` and replaces criteria objects with their + * corresponding values. + * + * @private + * @param {Array} array The array to sort. + * @param {Function} comparer The function to define sort order. + * @returns {Array} Returns `array`. + */ + function baseSortBy(array, comparer) { + var length = array.length; + + array.sort(comparer); + while (length--) { + array[length] = array[length].value; + } + return array; + } + + /** + * The base implementation of `_.sortByOrder` without param guards. + * + * @private + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. + * @param {boolean[]} orders The sort orders of `iteratees`. + * @returns {Array} Returns the new sorted array. + */ + function baseSortByOrder(collection, iteratees, orders) { + var callback = getCallback(), + index = -1; + + iteratees = arrayMap(iteratees, function(iteratee) { return callback(iteratee); }); + + var result = baseMap(collection, function(value) { + var criteria = arrayMap(iteratees, function(iteratee) { return iteratee(value); }); + return { 'criteria': criteria, 'index': ++index, 'value': value }; + }); + + return baseSortBy(result, function(object, other) { + return compareMultiple(object, other, orders); + }); + } + + /** + * The base implementation of `_.sum` without support for callback shorthands + * and `this` binding. + * + * @private + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {number} Returns the sum. + */ + function baseSum(collection, iteratee) { + var result = 0; + baseEach(collection, function(value, index, collection) { + result += +iteratee(value, index, collection) || 0; + }); + return result; + } + + /** + * The base implementation of `_.uniq` without support for callback shorthands + * and `this` binding. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The function invoked per iteration. + * @returns {Array} Returns the new duplicate-value-free array. + */ + function baseUniq(array, iteratee) { + var index = -1, + indexOf = getIndexOf(), + length = array.length, + isCommon = indexOf == baseIndexOf, + isLarge = isCommon && length >= LARGE_ARRAY_SIZE, + seen = isLarge ? createCache() : null, + result = []; + + if (seen) { + indexOf = cacheIndexOf; + isCommon = false; + } else { + isLarge = false; + seen = iteratee ? [] : result; + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value, index, array) : value; + + if (isCommon && value === value) { + var seenIndex = seen.length; + while (seenIndex--) { + if (seen[seenIndex] === computed) { + continue outer; + } + } + if (iteratee) { + seen.push(computed); + } + result.push(value); + } + else if (indexOf(seen, computed, 0) < 0) { + if (iteratee || isLarge) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.values` and `_.valuesIn` which creates an + * array of `object` property values corresponding to the property names + * of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the array of property values. + */ + function baseValues(object, props) { + var index = -1, + length = props.length, + result = Array(length); + + while (++index < length) { + result[index] = object[props[index]]; + } + return result; + } + + /** + * The base implementation of `_.dropRightWhile`, `_.dropWhile`, `_.takeRightWhile`, + * and `_.takeWhile` without support for callback shorthands and `this` binding. + * + * @private + * @param {Array} array The array to query. + * @param {Function} predicate The function invoked per iteration. + * @param {boolean} [isDrop] Specify dropping elements instead of taking them. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the slice of `array`. + */ + function baseWhile(array, predicate, isDrop, fromRight) { + var length = array.length, + index = fromRight ? length : -1; + + while ((fromRight ? index-- : ++index < length) && predicate(array[index], index, array)) {} + return isDrop + ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length)) + : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index)); + } + + /** + * The base implementation of `wrapperValue` which returns the result of + * performing a sequence of actions on the unwrapped `value`, where each + * successive action is supplied the return value of the previous. + * + * @private + * @param {*} value The unwrapped value. + * @param {Array} actions Actions to peform to resolve the unwrapped value. + * @returns {*} Returns the resolved value. + */ + function baseWrapperValue(value, actions) { + var result = value; + if (result instanceof LazyWrapper) { + result = result.value(); + } + var index = -1, + length = actions.length; + + while (++index < length) { + var action = actions[index]; + result = action.func.apply(action.thisArg, arrayPush([result], action.args)); + } + return result; + } + + /** + * Performs a binary search of `array` to determine the index at which `value` + * should be inserted into `array` in order to maintain its sort order. + * + * @private + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @param {boolean} [retHighest] Specify returning the highest qualified index. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + */ + function binaryIndex(array, value, retHighest) { + var low = 0, + high = array ? array.length : low; + + if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) { + while (low < high) { + var mid = (low + high) >>> 1, + computed = array[mid]; + + if ((retHighest ? (computed <= value) : (computed < value)) && computed !== null) { + low = mid + 1; + } else { + high = mid; + } + } + return high; + } + return binaryIndexBy(array, value, identity, retHighest); + } + + /** + * This function is like `binaryIndex` except that it invokes `iteratee` for + * `value` and each element of `array` to compute their sort ranking. The + * iteratee is invoked with one argument; (value). + * + * @private + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @param {Function} iteratee The function invoked per iteration. + * @param {boolean} [retHighest] Specify returning the highest qualified index. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + */ + function binaryIndexBy(array, value, iteratee, retHighest) { + value = iteratee(value); + + var low = 0, + high = array ? array.length : 0, + valIsNaN = value !== value, + valIsNull = value === null, + valIsUndef = value === undefined; + + while (low < high) { + var mid = nativeFloor((low + high) / 2), + computed = iteratee(array[mid]), + isDef = computed !== undefined, + isReflexive = computed === computed; + + if (valIsNaN) { + var setLow = isReflexive || retHighest; + } else if (valIsNull) { + setLow = isReflexive && isDef && (retHighest || computed != null); + } else if (valIsUndef) { + setLow = isReflexive && (retHighest || isDef); + } else if (computed == null) { + setLow = false; + } else { + setLow = retHighest ? (computed <= value) : (computed < value); + } + if (setLow) { + low = mid + 1; + } else { + high = mid; + } + } + return nativeMin(high, MAX_ARRAY_INDEX); + } + + /** + * A specialized version of `baseCallback` which only supports `this` binding + * and specifying the number of arguments to provide to `func`. + * + * @private + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {number} [argCount] The number of arguments to provide to `func`. + * @returns {Function} Returns the callback. + */ + function bindCallback(func, thisArg, argCount) { + if (typeof func != 'function') { + return identity; + } + if (thisArg === undefined) { + return func; + } + switch (argCount) { + case 1: return function(value) { + return func.call(thisArg, value); + }; + case 3: return function(value, index, collection) { + return func.call(thisArg, value, index, collection); + }; + case 4: return function(accumulator, value, index, collection) { + return func.call(thisArg, accumulator, value, index, collection); + }; + case 5: return function(value, other, key, object, source) { + return func.call(thisArg, value, other, key, object, source); + }; + } + return function() { + return func.apply(thisArg, arguments); + }; + } + + /** + * Creates a clone of the given array buffer. + * + * @private + * @param {ArrayBuffer} buffer The array buffer to clone. + * @returns {ArrayBuffer} Returns the cloned array buffer. + */ + function bufferClone(buffer) { + var result = new ArrayBuffer(buffer.byteLength), + view = new Uint8Array(result); + + view.set(new Uint8Array(buffer)); + return result; + } + + /** + * Creates an array that is the composition of partially applied arguments, + * placeholders, and provided arguments into a single array of arguments. + * + * @private + * @param {Array|Object} args The provided arguments. + * @param {Array} partials The arguments to prepend to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgs(args, partials, holders) { + var holdersLength = holders.length, + argsIndex = -1, + argsLength = nativeMax(args.length - holdersLength, 0), + leftIndex = -1, + leftLength = partials.length, + result = Array(leftLength + argsLength); + + while (++leftIndex < leftLength) { + result[leftIndex] = partials[leftIndex]; + } + while (++argsIndex < holdersLength) { + result[holders[argsIndex]] = args[argsIndex]; + } + while (argsLength--) { + result[leftIndex++] = args[argsIndex++]; + } + return result; + } + + /** + * This function is like `composeArgs` except that the arguments composition + * is tailored for `_.partialRight`. + * + * @private + * @param {Array|Object} args The provided arguments. + * @param {Array} partials The arguments to append to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgsRight(args, partials, holders) { + var holdersIndex = -1, + holdersLength = holders.length, + argsIndex = -1, + argsLength = nativeMax(args.length - holdersLength, 0), + rightIndex = -1, + rightLength = partials.length, + result = Array(argsLength + rightLength); + + while (++argsIndex < argsLength) { + result[argsIndex] = args[argsIndex]; + } + var offset = argsIndex; + while (++rightIndex < rightLength) { + result[offset + rightIndex] = partials[rightIndex]; + } + while (++holdersIndex < holdersLength) { + result[offset + holders[holdersIndex]] = args[argsIndex++]; + } + return result; + } + + /** + * Creates a `_.countBy`, `_.groupBy`, `_.indexBy`, or `_.partition` function. + * + * @private + * @param {Function} setter The function to set keys and values of the accumulator object. + * @param {Function} [initializer] The function to initialize the accumulator object. + * @returns {Function} Returns the new aggregator function. + */ + function createAggregator(setter, initializer) { + return function(collection, iteratee, thisArg) { + var result = initializer ? initializer() : {}; + iteratee = getCallback(iteratee, thisArg, 3); + + if (isArray(collection)) { + var index = -1, + length = collection.length; + + while (++index < length) { + var value = collection[index]; + setter(result, value, iteratee(value, index, collection), collection); + } + } else { + baseEach(collection, function(value, key, collection) { + setter(result, value, iteratee(value, key, collection), collection); + }); + } + return result; + }; + } + + /** + * Creates a `_.assign`, `_.defaults`, or `_.merge` function. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return restParam(function(object, sources) { + var index = -1, + length = object == null ? 0 : sources.length, + customizer = length > 2 ? sources[length - 2] : undefined, + guard = length > 2 ? sources[2] : undefined, + thisArg = length > 1 ? sources[length - 1] : undefined; + + if (typeof customizer == 'function') { + customizer = bindCallback(customizer, thisArg, 5); + length -= 2; + } else { + customizer = typeof thisArg == 'function' ? thisArg : undefined; + length -= (customizer ? 1 : 0); + } + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, customizer); + } + } + return object; + }); + } + + /** + * Creates a `baseEach` or `baseEachRight` function. + * + * @private + * @param {Function} eachFunc The function to iterate over a collection. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseEach(eachFunc, fromRight) { + return function(collection, iteratee) { + var length = collection ? getLength(collection) : 0; + if (!isLength(length)) { + return eachFunc(collection, iteratee); + } + var index = fromRight ? length : -1, + iterable = toObject(collection); + + while ((fromRight ? index-- : ++index < length)) { + if (iteratee(iterable[index], index, iterable) === false) { + break; + } + } + return collection; + }; + } + + /** + * Creates a base function for `_.forIn` or `_.forInRight`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var iterable = toObject(object), + props = keysFunc(object), + length = props.length, + index = fromRight ? length : -1; + + while ((fromRight ? index-- : ++index < length)) { + var key = props[index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; + } + } + return object; + }; + } + + /** + * Creates a function that wraps `func` and invokes it with the `this` + * binding of `thisArg`. + * + * @private + * @param {Function} func The function to bind. + * @param {*} [thisArg] The `this` binding of `func`. + * @returns {Function} Returns the new bound function. + */ + function createBindWrapper(func, thisArg) { + var Ctor = createCtorWrapper(func); + + function wrapper() { + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return fn.apply(thisArg, arguments); + } + return wrapper; + } + + /** + * Creates a `Set` cache object to optimize linear searches of large arrays. + * + * @private + * @param {Array} [values] The values to cache. + * @returns {null|Object} Returns the new cache object if `Set` is supported, else `null`. + */ + function createCache(values) { + return (nativeCreate && Set) ? new SetCache(values) : null; + } + + /** + * Creates a function that produces compound words out of the words in a + * given string. + * + * @private + * @param {Function} callback The function to combine each word. + * @returns {Function} Returns the new compounder function. + */ + function createCompounder(callback) { + return function(string) { + var index = -1, + array = words(deburr(string)), + length = array.length, + result = ''; + + while (++index < length) { + result = callback(result, array[index], index); + } + return result; + }; + } + + /** + * Creates a function that produces an instance of `Ctor` regardless of + * whether it was invoked as part of a `new` expression or by `call` or `apply`. + * + * @private + * @param {Function} Ctor The constructor to wrap. + * @returns {Function} Returns the new wrapped function. + */ + function createCtorWrapper(Ctor) { + return function() { + // Use a `switch` statement to work with class constructors. + // See http://ecma-international.org/ecma-262/6.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist + // for more details. + var args = arguments; + switch (args.length) { + case 0: return new Ctor; + case 1: return new Ctor(args[0]); + case 2: return new Ctor(args[0], args[1]); + case 3: return new Ctor(args[0], args[1], args[2]); + case 4: return new Ctor(args[0], args[1], args[2], args[3]); + case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); + case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); + case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); + } + var thisBinding = baseCreate(Ctor.prototype), + result = Ctor.apply(thisBinding, args); + + // Mimic the constructor's `return` behavior. + // See https://es5.github.io/#x13.2.2 for more details. + return isObject(result) ? result : thisBinding; + }; + } + + /** + * Creates a `_.curry` or `_.curryRight` function. + * + * @private + * @param {boolean} flag The curry bit flag. + * @returns {Function} Returns the new curry function. + */ + function createCurry(flag) { + function curryFunc(func, arity, guard) { + if (guard && isIterateeCall(func, arity, guard)) { + arity = undefined; + } + var result = createWrapper(func, flag, undefined, undefined, undefined, undefined, undefined, arity); + result.placeholder = curryFunc.placeholder; + return result; + } + return curryFunc; + } + + /** + * Creates a `_.defaults` or `_.defaultsDeep` function. + * + * @private + * @param {Function} assigner The function to assign values. + * @param {Function} customizer The function to customize assigned values. + * @returns {Function} Returns the new defaults function. + */ + function createDefaults(assigner, customizer) { + return restParam(function(args) { + var object = args[0]; + if (object == null) { + return object; + } + args.push(customizer); + return assigner.apply(undefined, args); + }); + } + + /** + * Creates a `_.max` or `_.min` function. + * + * @private + * @param {Function} comparator The function used to compare values. + * @param {*} exValue The initial extremum value. + * @returns {Function} Returns the new extremum function. + */ + function createExtremum(comparator, exValue) { + return function(collection, iteratee, thisArg) { + if (thisArg && isIterateeCall(collection, iteratee, thisArg)) { + iteratee = undefined; + } + iteratee = getCallback(iteratee, thisArg, 3); + if (iteratee.length == 1) { + collection = isArray(collection) ? collection : toIterable(collection); + var result = arrayExtremum(collection, iteratee, comparator, exValue); + if (!(collection.length && result === exValue)) { + return result; + } + } + return baseExtremum(collection, iteratee, comparator, exValue); + }; + } + + /** + * Creates a `_.find` or `_.findLast` function. + * + * @private + * @param {Function} eachFunc The function to iterate over a collection. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new find function. + */ + function createFind(eachFunc, fromRight) { + return function(collection, predicate, thisArg) { + predicate = getCallback(predicate, thisArg, 3); + if (isArray(collection)) { + var index = baseFindIndex(collection, predicate, fromRight); + return index > -1 ? collection[index] : undefined; + } + return baseFind(collection, predicate, eachFunc); + }; + } + + /** + * Creates a `_.findIndex` or `_.findLastIndex` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new find function. + */ + function createFindIndex(fromRight) { + return function(array, predicate, thisArg) { + if (!(array && array.length)) { + return -1; + } + predicate = getCallback(predicate, thisArg, 3); + return baseFindIndex(array, predicate, fromRight); + }; + } + + /** + * Creates a `_.findKey` or `_.findLastKey` function. + * + * @private + * @param {Function} objectFunc The function to iterate over an object. + * @returns {Function} Returns the new find function. + */ + function createFindKey(objectFunc) { + return function(object, predicate, thisArg) { + predicate = getCallback(predicate, thisArg, 3); + return baseFind(object, predicate, objectFunc, true); + }; + } + + /** + * Creates a `_.flow` or `_.flowRight` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new flow function. + */ + function createFlow(fromRight) { + return function() { + var wrapper, + length = arguments.length, + index = fromRight ? length : -1, + leftIndex = 0, + funcs = Array(length); + + while ((fromRight ? index-- : ++index < length)) { + var func = funcs[leftIndex++] = arguments[index]; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + if (!wrapper && LodashWrapper.prototype.thru && getFuncName(func) == 'wrapper') { + wrapper = new LodashWrapper([], true); + } + } + index = wrapper ? -1 : length; + while (++index < length) { + func = funcs[index]; + + var funcName = getFuncName(func), + data = funcName == 'wrapper' ? getData(func) : undefined; + + if (data && isLaziable(data[0]) && data[1] == (ARY_FLAG | CURRY_FLAG | PARTIAL_FLAG | REARG_FLAG) && !data[4].length && data[9] == 1) { + wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]); + } else { + wrapper = (func.length == 1 && isLaziable(func)) ? wrapper[funcName]() : wrapper.thru(func); + } + } + return function() { + var args = arguments, + value = args[0]; + + if (wrapper && args.length == 1 && isArray(value) && value.length >= LARGE_ARRAY_SIZE) { + return wrapper.plant(value).value(); + } + var index = 0, + result = length ? funcs[index].apply(this, args) : value; + + while (++index < length) { + result = funcs[index].call(this, result); + } + return result; + }; + }; + } + + /** + * Creates a function for `_.forEach` or `_.forEachRight`. + * + * @private + * @param {Function} arrayFunc The function to iterate over an array. + * @param {Function} eachFunc The function to iterate over a collection. + * @returns {Function} Returns the new each function. + */ + function createForEach(arrayFunc, eachFunc) { + return function(collection, iteratee, thisArg) { + return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection)) + ? arrayFunc(collection, iteratee) + : eachFunc(collection, bindCallback(iteratee, thisArg, 3)); + }; + } + + /** + * Creates a function for `_.forIn` or `_.forInRight`. + * + * @private + * @param {Function} objectFunc The function to iterate over an object. + * @returns {Function} Returns the new each function. + */ + function createForIn(objectFunc) { + return function(object, iteratee, thisArg) { + if (typeof iteratee != 'function' || thisArg !== undefined) { + iteratee = bindCallback(iteratee, thisArg, 3); + } + return objectFunc(object, iteratee, keysIn); + }; + } + + /** + * Creates a function for `_.forOwn` or `_.forOwnRight`. + * + * @private + * @param {Function} objectFunc The function to iterate over an object. + * @returns {Function} Returns the new each function. + */ + function createForOwn(objectFunc) { + return function(object, iteratee, thisArg) { + if (typeof iteratee != 'function' || thisArg !== undefined) { + iteratee = bindCallback(iteratee, thisArg, 3); + } + return objectFunc(object, iteratee); + }; + } + + /** + * Creates a function for `_.mapKeys` or `_.mapValues`. + * + * @private + * @param {boolean} [isMapKeys] Specify mapping keys instead of values. + * @returns {Function} Returns the new map function. + */ + function createObjectMapper(isMapKeys) { + return function(object, iteratee, thisArg) { + var result = {}; + iteratee = getCallback(iteratee, thisArg, 3); + + baseForOwn(object, function(value, key, object) { + var mapped = iteratee(value, key, object); + key = isMapKeys ? mapped : key; + value = isMapKeys ? value : mapped; + result[key] = value; + }); + return result; + }; + } + + /** + * Creates a function for `_.padLeft` or `_.padRight`. + * + * @private + * @param {boolean} [fromRight] Specify padding from the right. + * @returns {Function} Returns the new pad function. + */ + function createPadDir(fromRight) { + return function(string, length, chars) { + string = baseToString(string); + return (fromRight ? string : '') + createPadding(string, length, chars) + (fromRight ? '' : string); + }; + } + + /** + * Creates a `_.partial` or `_.partialRight` function. + * + * @private + * @param {boolean} flag The partial bit flag. + * @returns {Function} Returns the new partial function. + */ + function createPartial(flag) { + var partialFunc = restParam(function(func, partials) { + var holders = replaceHolders(partials, partialFunc.placeholder); + return createWrapper(func, flag, undefined, partials, holders); + }); + return partialFunc; + } + + /** + * Creates a function for `_.reduce` or `_.reduceRight`. + * + * @private + * @param {Function} arrayFunc The function to iterate over an array. + * @param {Function} eachFunc The function to iterate over a collection. + * @returns {Function} Returns the new each function. + */ + function createReduce(arrayFunc, eachFunc) { + return function(collection, iteratee, accumulator, thisArg) { + var initFromArray = arguments.length < 3; + return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection)) + ? arrayFunc(collection, iteratee, accumulator, initFromArray) + : baseReduce(collection, getCallback(iteratee, thisArg, 4), accumulator, initFromArray, eachFunc); + }; + } + + /** + * Creates a function that wraps `func` and invokes it with optional `this` + * binding of, partial application, and currying. + * + * @private + * @param {Function|string} func The function or method name to reference. + * @param {number} bitmask The bitmask of flags. See `createWrapper` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [partialsRight] The arguments to append to those provided to the new function. + * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createHybridWrapper(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { + var isAry = bitmask & ARY_FLAG, + isBind = bitmask & BIND_FLAG, + isBindKey = bitmask & BIND_KEY_FLAG, + isCurry = bitmask & CURRY_FLAG, + isCurryBound = bitmask & CURRY_BOUND_FLAG, + isCurryRight = bitmask & CURRY_RIGHT_FLAG, + Ctor = isBindKey ? undefined : createCtorWrapper(func); + + function wrapper() { + // Avoid `arguments` object use disqualifying optimizations by + // converting it to an array before providing it to other functions. + var length = arguments.length, + index = length, + args = Array(length); + + while (index--) { + args[index] = arguments[index]; + } + if (partials) { + args = composeArgs(args, partials, holders); + } + if (partialsRight) { + args = composeArgsRight(args, partialsRight, holdersRight); + } + if (isCurry || isCurryRight) { + var placeholder = wrapper.placeholder, + argsHolders = replaceHolders(args, placeholder); + + length -= argsHolders.length; + if (length < arity) { + var newArgPos = argPos ? arrayCopy(argPos) : undefined, + newArity = nativeMax(arity - length, 0), + newsHolders = isCurry ? argsHolders : undefined, + newHoldersRight = isCurry ? undefined : argsHolders, + newPartials = isCurry ? args : undefined, + newPartialsRight = isCurry ? undefined : args; + + bitmask |= (isCurry ? PARTIAL_FLAG : PARTIAL_RIGHT_FLAG); + bitmask &= ~(isCurry ? PARTIAL_RIGHT_FLAG : PARTIAL_FLAG); + + if (!isCurryBound) { + bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG); + } + var newData = [func, bitmask, thisArg, newPartials, newsHolders, newPartialsRight, newHoldersRight, newArgPos, ary, newArity], + result = createHybridWrapper.apply(undefined, newData); + + if (isLaziable(func)) { + setData(result, newData); + } + result.placeholder = placeholder; + return result; + } + } + var thisBinding = isBind ? thisArg : this, + fn = isBindKey ? thisBinding[func] : func; + + if (argPos) { + args = reorder(args, argPos); + } + if (isAry && ary < args.length) { + args.length = ary; + } + if (this && this !== root && this instanceof wrapper) { + fn = Ctor || createCtorWrapper(func); + } + return fn.apply(thisBinding, args); + } + return wrapper; + } + + /** + * Creates the padding required for `string` based on the given `length`. + * The `chars` string is truncated if the number of characters exceeds `length`. + * + * @private + * @param {string} string The string to create padding for. + * @param {number} [length=0] The padding length. + * @param {string} [chars=' '] The string used as padding. + * @returns {string} Returns the pad for `string`. + */ + function createPadding(string, length, chars) { + var strLength = string.length; + length = +length; + + if (strLength >= length || !nativeIsFinite(length)) { + return ''; + } + var padLength = length - strLength; + chars = chars == null ? ' ' : (chars + ''); + return repeat(chars, nativeCeil(padLength / chars.length)).slice(0, padLength); + } + + /** + * Creates a function that wraps `func` and invokes it with the optional `this` + * binding of `thisArg` and the `partials` prepended to those provided to + * the wrapper. + * + * @private + * @param {Function} func The function to partially apply arguments to. + * @param {number} bitmask The bitmask of flags. See `createWrapper` for more details. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} partials The arguments to prepend to those provided to the new function. + * @returns {Function} Returns the new bound function. + */ + function createPartialWrapper(func, bitmask, thisArg, partials) { + var isBind = bitmask & BIND_FLAG, + Ctor = createCtorWrapper(func); + + function wrapper() { + // Avoid `arguments` object use disqualifying optimizations by + // converting it to an array before providing it `func`. + var argsIndex = -1, + argsLength = arguments.length, + leftIndex = -1, + leftLength = partials.length, + args = Array(leftLength + argsLength); + + while (++leftIndex < leftLength) { + args[leftIndex] = partials[leftIndex]; + } + while (argsLength--) { + args[leftIndex++] = arguments[++argsIndex]; + } + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return fn.apply(isBind ? thisArg : this, args); + } + return wrapper; + } + + /** + * Creates a `_.ceil`, `_.floor`, or `_.round` function. + * + * @private + * @param {string} methodName The name of the `Math` method to use when rounding. + * @returns {Function} Returns the new round function. + */ + function createRound(methodName) { + var func = Math[methodName]; + return function(number, precision) { + precision = precision === undefined ? 0 : (+precision || 0); + if (precision) { + precision = pow(10, precision); + return func(number * precision) / precision; + } + return func(number); + }; + } + + /** + * Creates a `_.sortedIndex` or `_.sortedLastIndex` function. + * + * @private + * @param {boolean} [retHighest] Specify returning the highest qualified index. + * @returns {Function} Returns the new index function. + */ + function createSortedIndex(retHighest) { + return function(array, value, iteratee, thisArg) { + var callback = getCallback(iteratee); + return (iteratee == null && callback === baseCallback) + ? binaryIndex(array, value, retHighest) + : binaryIndexBy(array, value, callback(iteratee, thisArg, 1), retHighest); + }; + } + + /** + * Creates a function that either curries or invokes `func` with optional + * `this` binding and partially applied arguments. + * + * @private + * @param {Function|string} func The function or method name to reference. + * @param {number} bitmask The bitmask of flags. + * The bitmask may be composed of the following flags: + * 1 - `_.bind` + * 2 - `_.bindKey` + * 4 - `_.curry` or `_.curryRight` of a bound function + * 8 - `_.curry` + * 16 - `_.curryRight` + * 32 - `_.partial` + * 64 - `_.partialRight` + * 128 - `_.rearg` + * 256 - `_.ary` + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to be partially applied. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createWrapper(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { + var isBindKey = bitmask & BIND_KEY_FLAG; + if (!isBindKey && typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + var length = partials ? partials.length : 0; + if (!length) { + bitmask &= ~(PARTIAL_FLAG | PARTIAL_RIGHT_FLAG); + partials = holders = undefined; + } + length -= (holders ? holders.length : 0); + if (bitmask & PARTIAL_RIGHT_FLAG) { + var partialsRight = partials, + holdersRight = holders; + + partials = holders = undefined; + } + var data = isBindKey ? undefined : getData(func), + newData = [func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity]; + + if (data) { + mergeData(newData, data); + bitmask = newData[1]; + arity = newData[9]; + } + newData[9] = arity == null + ? (isBindKey ? 0 : func.length) + : (nativeMax(arity - length, 0) || 0); + + if (bitmask == BIND_FLAG) { + var result = createBindWrapper(newData[0], newData[2]); + } else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !newData[4].length) { + result = createPartialWrapper.apply(undefined, newData); + } else { + result = createHybridWrapper.apply(undefined, newData); + } + var setter = data ? baseSetData : setData; + return setter(result, newData); + } + + /** + * A specialized version of `baseIsEqualDeep` for arrays with support for + * partial deep comparisons. + * + * @private + * @param {Array} array The array to compare. + * @param {Array} other The other array to compare. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Function} [customizer] The function to customize comparing arrays. + * @param {boolean} [isLoose] Specify performing partial comparisons. + * @param {Array} [stackA] Tracks traversed `value` objects. + * @param {Array} [stackB] Tracks traversed `other` objects. + * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. + */ + function equalArrays(array, other, equalFunc, customizer, isLoose, stackA, stackB) { + var index = -1, + arrLength = array.length, + othLength = other.length; + + if (arrLength != othLength && !(isLoose && othLength > arrLength)) { + return false; + } + // Ignore non-index properties. + while (++index < arrLength) { + var arrValue = array[index], + othValue = other[index], + result = customizer ? customizer(isLoose ? othValue : arrValue, isLoose ? arrValue : othValue, index) : undefined; + + if (result !== undefined) { + if (result) { + continue; + } + return false; + } + // Recursively compare arrays (susceptible to call stack limits). + if (isLoose) { + if (!arraySome(other, function(othValue) { + return arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB); + })) { + return false; + } + } else if (!(arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB))) { + return false; + } + } + return true; + } + + /** + * A specialized version of `baseIsEqualDeep` for comparing objects of + * the same `toStringTag`. + * + * **Note:** This function only supports comparing values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {string} tag The `toStringTag` of the objects to compare. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalByTag(object, other, tag) { + switch (tag) { + case boolTag: + case dateTag: + // Coerce dates and booleans to numbers, dates to milliseconds and booleans + // to `1` or `0` treating invalid dates coerced to `NaN` as not equal. + return +object == +other; + + case errorTag: + return object.name == other.name && object.message == other.message; + + case numberTag: + // Treat `NaN` vs. `NaN` as equal. + return (object != +object) + ? other != +other + : object == +other; + + case regexpTag: + case stringTag: + // Coerce regexes to strings and treat strings primitives and string + // objects as equal. See https://es5.github.io/#x15.10.6.4 for more details. + return object == (other + ''); + } + return false; + } + + /** + * A specialized version of `baseIsEqualDeep` for objects with support for + * partial deep comparisons. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Function} [customizer] The function to customize comparing values. + * @param {boolean} [isLoose] Specify performing partial comparisons. + * @param {Array} [stackA] Tracks traversed `value` objects. + * @param {Array} [stackB] Tracks traversed `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalObjects(object, other, equalFunc, customizer, isLoose, stackA, stackB) { + var objProps = keys(object), + objLength = objProps.length, + othProps = keys(other), + othLength = othProps.length; + + if (objLength != othLength && !isLoose) { + return false; + } + var index = objLength; + while (index--) { + var key = objProps[index]; + if (!(isLoose ? key in other : hasOwnProperty.call(other, key))) { + return false; + } + } + var skipCtor = isLoose; + while (++index < objLength) { + key = objProps[index]; + var objValue = object[key], + othValue = other[key], + result = customizer ? customizer(isLoose ? othValue : objValue, isLoose? objValue : othValue, key) : undefined; + + // Recursively compare objects (susceptible to call stack limits). + if (!(result === undefined ? equalFunc(objValue, othValue, customizer, isLoose, stackA, stackB) : result)) { + return false; + } + skipCtor || (skipCtor = key == 'constructor'); + } + if (!skipCtor) { + var objCtor = object.constructor, + othCtor = other.constructor; + + // Non `Object` object instances with different constructors are not equal. + if (objCtor != othCtor && + ('constructor' in object && 'constructor' in other) && + !(typeof objCtor == 'function' && objCtor instanceof objCtor && + typeof othCtor == 'function' && othCtor instanceof othCtor)) { + return false; + } + } + return true; + } + + /** + * Gets the appropriate "callback" function. If the `_.callback` method is + * customized this function returns the custom method, otherwise it returns + * the `baseCallback` function. If arguments are provided the chosen function + * is invoked with them and its result is returned. + * + * @private + * @returns {Function} Returns the chosen function or its result. + */ + function getCallback(func, thisArg, argCount) { + var result = lodash.callback || callback; + result = result === callback ? baseCallback : result; + return argCount ? result(func, thisArg, argCount) : result; + } + + /** + * Gets metadata for `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {*} Returns the metadata for `func`. + */ + var getData = !metaMap ? noop : function(func) { + return metaMap.get(func); + }; + + /** + * Gets the name of `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {string} Returns the function name. + */ + function getFuncName(func) { + var result = func.name, + array = realNames[result], + length = array ? array.length : 0; + + while (length--) { + var data = array[length], + otherFunc = data.func; + if (otherFunc == null || otherFunc == func) { + return data.name; + } + } + return result; + } + + /** + * Gets the appropriate "indexOf" function. If the `_.indexOf` method is + * customized this function returns the custom method, otherwise it returns + * the `baseIndexOf` function. If arguments are provided the chosen function + * is invoked with them and its result is returned. + * + * @private + * @returns {Function|number} Returns the chosen function or its result. + */ + function getIndexOf(collection, target, fromIndex) { + var result = lodash.indexOf || indexOf; + result = result === indexOf ? baseIndexOf : result; + return collection ? result(collection, target, fromIndex) : result; + } + + /** + * Gets the "length" property value of `object`. + * + * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) + * that affects Safari on at least iOS 8.1-8.3 ARM64. + * + * @private + * @param {Object} object The object to query. + * @returns {*} Returns the "length" value. + */ + var getLength = baseProperty('length'); + + /** + * Gets the propery names, values, and compare flags of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the match data of `object`. + */ + function getMatchData(object) { + var result = pairs(object), + length = result.length; + + while (length--) { + result[length][2] = isStrictComparable(result[length][1]); + } + return result; + } + + /** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ + function getNative(object, key) { + var value = object == null ? undefined : object[key]; + return isNative(value) ? value : undefined; + } + + /** + * Gets the view, applying any `transforms` to the `start` and `end` positions. + * + * @private + * @param {number} start The start of the view. + * @param {number} end The end of the view. + * @param {Array} transforms The transformations to apply to the view. + * @returns {Object} Returns an object containing the `start` and `end` + * positions of the view. + */ + function getView(start, end, transforms) { + var index = -1, + length = transforms.length; + + while (++index < length) { + var data = transforms[index], + size = data.size; + + switch (data.type) { + case 'drop': start += size; break; + case 'dropRight': end -= size; break; + case 'take': end = nativeMin(end, start + size); break; + case 'takeRight': start = nativeMax(start, end - size); break; + } + } + return { 'start': start, 'end': end }; + } + + /** + * Initializes an array clone. + * + * @private + * @param {Array} array The array to clone. + * @returns {Array} Returns the initialized clone. + */ + function initCloneArray(array) { + var length = array.length, + result = new array.constructor(length); + + // Add array properties assigned by `RegExp#exec`. + if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { + result.index = array.index; + result.input = array.input; + } + return result; + } + + /** + * Initializes an object clone. + * + * @private + * @param {Object} object The object to clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneObject(object) { + var Ctor = object.constructor; + if (!(typeof Ctor == 'function' && Ctor instanceof Ctor)) { + Ctor = Object; + } + return new Ctor; + } + + /** + * Initializes an object clone based on its `toStringTag`. + * + * **Note:** This function only supports cloning values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to clone. + * @param {string} tag The `toStringTag` of the object to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneByTag(object, tag, isDeep) { + var Ctor = object.constructor; + switch (tag) { + case arrayBufferTag: + return bufferClone(object); + + case boolTag: + case dateTag: + return new Ctor(+object); + + case float32Tag: case float64Tag: + case int8Tag: case int16Tag: case int32Tag: + case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: + var buffer = object.buffer; + return new Ctor(isDeep ? bufferClone(buffer) : buffer, object.byteOffset, object.length); + + case numberTag: + case stringTag: + return new Ctor(object); + + case regexpTag: + var result = new Ctor(object.source, reFlags.exec(object)); + result.lastIndex = object.lastIndex; + } + return result; + } + + /** + * Invokes the method at `path` on `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the method to invoke. + * @param {Array} args The arguments to invoke the method with. + * @returns {*} Returns the result of the invoked method. + */ + function invokePath(object, path, args) { + if (object != null && !isKey(path, object)) { + path = toPath(path); + object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1)); + path = last(path); + } + var func = object == null ? object : object[path]; + return func == null ? undefined : func.apply(object, args); + } + + /** + * Checks if `value` is array-like. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + */ + function isArrayLike(value) { + return value != null && isLength(getLength(value)); + } + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1; + length = length == null ? MAX_SAFE_INTEGER : length; + return value > -1 && value % 1 == 0 && value < length; + } + + /** + * Checks if the provided arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object)) { + var other = object[index]; + return value === value ? (value === other) : (other !== other); + } + return false; + } + + /** + * Checks if `value` is a property name and not a property path. + * + * @private + * @param {*} value The value to check. + * @param {Object} [object] The object to query keys on. + * @returns {boolean} Returns `true` if `value` is a property name, else `false`. + */ + function isKey(value, object) { + var type = typeof value; + if ((type == 'string' && reIsPlainProp.test(value)) || type == 'number') { + return true; + } + if (isArray(value)) { + return false; + } + var result = !reIsDeepProp.test(value); + return result || (object != null && value in toObject(object)); + } + + /** + * Checks if `func` has a lazy counterpart. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` has a lazy counterpart, else `false`. + */ + function isLaziable(func) { + var funcName = getFuncName(func); + if (!(funcName in LazyWrapper.prototype)) { + return false; + } + var other = lodash[funcName]; + if (func === other) { + return true; + } + var data = getData(other); + return !!data && func === data[0]; + } + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength). + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + */ + function isLength(value) { + return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; + } + + /** + * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` if suitable for strict + * equality comparisons, else `false`. + */ + function isStrictComparable(value) { + return value === value && !isObject(value); + } + + /** + * Merges the function metadata of `source` into `data`. + * + * Merging metadata reduces the number of wrappers required to invoke a function. + * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` + * may be applied regardless of execution order. Methods like `_.ary` and `_.rearg` + * augment function arguments, making the order in which they are executed important, + * preventing the merging of metadata. However, we make an exception for a safe + * common case where curried functions have `_.ary` and or `_.rearg` applied. + * + * @private + * @param {Array} data The destination metadata. + * @param {Array} source The source metadata. + * @returns {Array} Returns `data`. + */ + function mergeData(data, source) { + var bitmask = data[1], + srcBitmask = source[1], + newBitmask = bitmask | srcBitmask, + isCommon = newBitmask < ARY_FLAG; + + var isCombo = + (srcBitmask == ARY_FLAG && bitmask == CURRY_FLAG) || + (srcBitmask == ARY_FLAG && bitmask == REARG_FLAG && data[7].length <= source[8]) || + (srcBitmask == (ARY_FLAG | REARG_FLAG) && bitmask == CURRY_FLAG); + + // Exit early if metadata can't be merged. + if (!(isCommon || isCombo)) { + return data; + } + // Use source `thisArg` if available. + if (srcBitmask & BIND_FLAG) { + data[2] = source[2]; + // Set when currying a bound function. + newBitmask |= (bitmask & BIND_FLAG) ? 0 : CURRY_BOUND_FLAG; + } + // Compose partial arguments. + var value = source[3]; + if (value) { + var partials = data[3]; + data[3] = partials ? composeArgs(partials, value, source[4]) : arrayCopy(value); + data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : arrayCopy(source[4]); + } + // Compose partial right arguments. + value = source[5]; + if (value) { + partials = data[5]; + data[5] = partials ? composeArgsRight(partials, value, source[6]) : arrayCopy(value); + data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : arrayCopy(source[6]); + } + // Use source `argPos` if available. + value = source[7]; + if (value) { + data[7] = arrayCopy(value); + } + // Use source `ary` if it's smaller. + if (srcBitmask & ARY_FLAG) { + data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); + } + // Use source `arity` if one is not provided. + if (data[9] == null) { + data[9] = source[9]; + } + // Use source `func` and merge bitmasks. + data[0] = source[0]; + data[1] = newBitmask; + + return data; + } + + /** + * Used by `_.defaultsDeep` to customize its `_.merge` use. + * + * @private + * @param {*} objectValue The destination object property value. + * @param {*} sourceValue The source object property value. + * @returns {*} Returns the value to assign to the destination object. + */ + function mergeDefaults(objectValue, sourceValue) { + return objectValue === undefined ? sourceValue : merge(objectValue, sourceValue, mergeDefaults); + } + + /** + * A specialized version of `_.pick` which picks `object` properties specified + * by `props`. + * + * @private + * @param {Object} object The source object. + * @param {string[]} props The property names to pick. + * @returns {Object} Returns the new object. + */ + function pickByArray(object, props) { + object = toObject(object); + + var index = -1, + length = props.length, + result = {}; + + while (++index < length) { + var key = props[index]; + if (key in object) { + result[key] = object[key]; + } + } + return result; + } + + /** + * A specialized version of `_.pick` which picks `object` properties `predicate` + * returns truthy for. + * + * @private + * @param {Object} object The source object. + * @param {Function} predicate The function invoked per iteration. + * @returns {Object} Returns the new object. + */ + function pickByCallback(object, predicate) { + var result = {}; + baseForIn(object, function(value, key, object) { + if (predicate(value, key, object)) { + result[key] = value; + } + }); + return result; + } + + /** + * Reorder `array` according to the specified indexes where the element at + * the first index is assigned as the first element, the element at + * the second index is assigned as the second element, and so on. + * + * @private + * @param {Array} array The array to reorder. + * @param {Array} indexes The arranged array indexes. + * @returns {Array} Returns `array`. + */ + function reorder(array, indexes) { + var arrLength = array.length, + length = nativeMin(indexes.length, arrLength), + oldArray = arrayCopy(array); + + while (length--) { + var index = indexes[length]; + array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; + } + return array; + } + + /** + * Sets metadata for `func`. + * + * **Note:** If this function becomes hot, i.e. is invoked a lot in a short + * period of time, it will trip its breaker and transition to an identity function + * to avoid garbage collection pauses in V8. See [V8 issue 2070](https://code.google.com/p/v8/issues/detail?id=2070) + * for more details. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var setData = (function() { + var count = 0, + lastCalled = 0; + + return function(key, value) { + var stamp = now(), + remaining = HOT_SPAN - (stamp - lastCalled); + + lastCalled = stamp; + if (remaining > 0) { + if (++count >= HOT_COUNT) { + return key; + } + } else { + count = 0; + } + return baseSetData(key, value); + }; + }()); + + /** + * A fallback implementation of `Object.keys` which creates an array of the + * own enumerable property names of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function shimKeys(object) { + var props = keysIn(object), + propsLength = props.length, + length = propsLength && object.length; + + var allowIndexes = !!length && isLength(length) && + (isArray(object) || isArguments(object)); + + var index = -1, + result = []; + + while (++index < propsLength) { + var key = props[index]; + if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) { + result.push(key); + } + } + return result; + } + + /** + * Converts `value` to an array-like object if it's not one. + * + * @private + * @param {*} value The value to process. + * @returns {Array|Object} Returns the array-like object. + */ + function toIterable(value) { + if (value == null) { + return []; + } + if (!isArrayLike(value)) { + return values(value); + } + return isObject(value) ? value : Object(value); + } + + /** + * Converts `value` to an object if it's not one. + * + * @private + * @param {*} value The value to process. + * @returns {Object} Returns the object. + */ + function toObject(value) { + return isObject(value) ? value : Object(value); + } + + /** + * Converts `value` to property path array if it's not one. + * + * @private + * @param {*} value The value to process. + * @returns {Array} Returns the property path array. + */ + function toPath(value) { + if (isArray(value)) { + return value; + } + var result = []; + baseToString(value).replace(rePropName, function(match, number, quote, string) { + result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match)); + }); + return result; + } + + /** + * Creates a clone of `wrapper`. + * + * @private + * @param {Object} wrapper The wrapper to clone. + * @returns {Object} Returns the cloned wrapper. + */ + function wrapperClone(wrapper) { + return wrapper instanceof LazyWrapper + ? wrapper.clone() + : new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__, arrayCopy(wrapper.__actions__)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of elements split into groups the length of `size`. + * If `collection` can't be split evenly, the final chunk will be the remaining + * elements. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to process. + * @param {number} [size=1] The length of each chunk. + * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. + * @returns {Array} Returns the new array containing chunks. + * @example + * + * _.chunk(['a', 'b', 'c', 'd'], 2); + * // => [['a', 'b'], ['c', 'd']] + * + * _.chunk(['a', 'b', 'c', 'd'], 3); + * // => [['a', 'b', 'c'], ['d']] + */ + function chunk(array, size, guard) { + if (guard ? isIterateeCall(array, size, guard) : size == null) { + size = 1; + } else { + size = nativeMax(nativeFloor(size) || 1, 1); + } + var index = 0, + length = array ? array.length : 0, + resIndex = -1, + result = Array(nativeCeil(length / size)); + + while (index < length) { + result[++resIndex] = baseSlice(array, index, (index += size)); + } + return result; + } + + /** + * Creates an array with all falsey values removed. The values `false`, `null`, + * `0`, `""`, `undefined`, and `NaN` are falsey. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to compact. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.compact([0, 1, false, 2, '', 3]); + * // => [1, 2, 3] + */ + function compact(array) { + var index = -1, + length = array ? array.length : 0, + resIndex = -1, + result = []; + + while (++index < length) { + var value = array[index]; + if (value) { + result[++resIndex] = value; + } + } + return result; + } + + /** + * Creates an array of unique `array` values not included in the other + * provided arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The arrays of values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.difference([1, 2, 3], [4, 2]); + * // => [1, 3] + */ + var difference = restParam(function(array, values) { + return (isObjectLike(array) && isArrayLike(array)) + ? baseDifference(array, baseFlatten(values, false, true)) + : []; + }); + + /** + * Creates a slice of `array` with `n` elements dropped from the beginning. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.drop([1, 2, 3]); + * // => [2, 3] + * + * _.drop([1, 2, 3], 2); + * // => [3] + * + * _.drop([1, 2, 3], 5); + * // => [] + * + * _.drop([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function drop(array, n, guard) { + var length = array ? array.length : 0; + if (!length) { + return []; + } + if (guard ? isIterateeCall(array, n, guard) : n == null) { + n = 1; + } + return baseSlice(array, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` with `n` elements dropped from the end. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.dropRight([1, 2, 3]); + * // => [1, 2] + * + * _.dropRight([1, 2, 3], 2); + * // => [1] + * + * _.dropRight([1, 2, 3], 5); + * // => [] + * + * _.dropRight([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function dropRight(array, n, guard) { + var length = array ? array.length : 0; + if (!length) { + return []; + } + if (guard ? isIterateeCall(array, n, guard) : n == null) { + n = 1; + } + n = length - (+n || 0); + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` excluding elements dropped from the end. + * Elements are dropped until `predicate` returns falsey. The predicate is + * bound to `thisArg` and invoked with three arguments: (value, index, array). + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that match the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to query. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.dropRightWhile([1, 2, 3], function(n) { + * return n > 1; + * }); + * // => [1] + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * // using the `_.matches` callback shorthand + * _.pluck(_.dropRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user'); + * // => ['barney', 'fred'] + * + * // using the `_.matchesProperty` callback shorthand + * _.pluck(_.dropRightWhile(users, 'active', false), 'user'); + * // => ['barney'] + * + * // using the `_.property` callback shorthand + * _.pluck(_.dropRightWhile(users, 'active'), 'user'); + * // => ['barney', 'fred', 'pebbles'] + */ + function dropRightWhile(array, predicate, thisArg) { + return (array && array.length) + ? baseWhile(array, getCallback(predicate, thisArg, 3), true, true) + : []; + } + + /** + * Creates a slice of `array` excluding elements dropped from the beginning. + * Elements are dropped until `predicate` returns falsey. The predicate is + * bound to `thisArg` and invoked with three arguments: (value, index, array). + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to query. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.dropWhile([1, 2, 3], function(n) { + * return n < 3; + * }); + * // => [3] + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * // using the `_.matches` callback shorthand + * _.pluck(_.dropWhile(users, { 'user': 'barney', 'active': false }), 'user'); + * // => ['fred', 'pebbles'] + * + * // using the `_.matchesProperty` callback shorthand + * _.pluck(_.dropWhile(users, 'active', false), 'user'); + * // => ['pebbles'] + * + * // using the `_.property` callback shorthand + * _.pluck(_.dropWhile(users, 'active'), 'user'); + * // => ['barney', 'fred', 'pebbles'] + */ + function dropWhile(array, predicate, thisArg) { + return (array && array.length) + ? baseWhile(array, getCallback(predicate, thisArg, 3), true) + : []; + } + + /** + * Fills elements of `array` with `value` from `start` up to, but not + * including, `end`. + * + * **Note:** This method mutates `array`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to fill. + * @param {*} value The value to fill `array` with. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3]; + * + * _.fill(array, 'a'); + * console.log(array); + * // => ['a', 'a', 'a'] + * + * _.fill(Array(3), 2); + * // => [2, 2, 2] + * + * _.fill([4, 6, 8], '*', 1, 2); + * // => [4, '*', 8] + */ + function fill(array, value, start, end) { + var length = array ? array.length : 0; + if (!length) { + return []; + } + if (start && typeof start != 'number' && isIterateeCall(array, value, start)) { + start = 0; + end = length; + } + return baseFill(array, value, start, end); + } + + /** + * This method is like `_.find` except that it returns the index of the first + * element `predicate` returns truthy for instead of the element itself. + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to search. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.findIndex(users, function(chr) { + * return chr.user == 'barney'; + * }); + * // => 0 + * + * // using the `_.matches` callback shorthand + * _.findIndex(users, { 'user': 'fred', 'active': false }); + * // => 1 + * + * // using the `_.matchesProperty` callback shorthand + * _.findIndex(users, 'active', false); + * // => 0 + * + * // using the `_.property` callback shorthand + * _.findIndex(users, 'active'); + * // => 2 + */ + var findIndex = createFindIndex(); + + /** + * This method is like `_.findIndex` except that it iterates over elements + * of `collection` from right to left. + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to search. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.findLastIndex(users, function(chr) { + * return chr.user == 'pebbles'; + * }); + * // => 2 + * + * // using the `_.matches` callback shorthand + * _.findLastIndex(users, { 'user': 'barney', 'active': true }); + * // => 0 + * + * // using the `_.matchesProperty` callback shorthand + * _.findLastIndex(users, 'active', false); + * // => 2 + * + * // using the `_.property` callback shorthand + * _.findLastIndex(users, 'active'); + * // => 0 + */ + var findLastIndex = createFindIndex(true); + + /** + * Gets the first element of `array`. + * + * @static + * @memberOf _ + * @alias head + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the first element of `array`. + * @example + * + * _.first([1, 2, 3]); + * // => 1 + * + * _.first([]); + * // => undefined + */ + function first(array) { + return array ? array[0] : undefined; + } + + /** + * Flattens a nested array. If `isDeep` is `true` the array is recursively + * flattened, otherwise it is only flattened a single level. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to flatten. + * @param {boolean} [isDeep] Specify a deep flatten. + * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flatten([1, [2, 3, [4]]]); + * // => [1, 2, 3, [4]] + * + * // using `isDeep` + * _.flatten([1, [2, 3, [4]]], true); + * // => [1, 2, 3, 4] + */ + function flatten(array, isDeep, guard) { + var length = array ? array.length : 0; + if (guard && isIterateeCall(array, isDeep, guard)) { + isDeep = false; + } + return length ? baseFlatten(array, isDeep) : []; + } + + /** + * Recursively flattens a nested array. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to recursively flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flattenDeep([1, [2, 3, [4]]]); + * // => [1, 2, 3, 4] + */ + function flattenDeep(array) { + var length = array ? array.length : 0; + return length ? baseFlatten(array, true) : []; + } + + /** + * Gets the index at which the first occurrence of `value` is found in `array` + * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it is used as the offset + * from the end of `array`. If `array` is sorted providing `true` for `fromIndex` + * performs a faster binary search. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to search. + * @param {*} value The value to search for. + * @param {boolean|number} [fromIndex=0] The index to search from or `true` + * to perform a binary search on a sorted array. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.indexOf([1, 2, 1, 2], 2); + * // => 1 + * + * // using `fromIndex` + * _.indexOf([1, 2, 1, 2], 2, 2); + * // => 3 + * + * // performing a binary search + * _.indexOf([1, 1, 2, 2], 2, true); + * // => 2 + */ + function indexOf(array, value, fromIndex) { + var length = array ? array.length : 0; + if (!length) { + return -1; + } + if (typeof fromIndex == 'number') { + fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : fromIndex; + } else if (fromIndex) { + var index = binaryIndex(array, value); + if (index < length && + (value === value ? (value === array[index]) : (array[index] !== array[index]))) { + return index; + } + return -1; + } + return baseIndexOf(array, value, fromIndex || 0); + } + + /** + * Gets all but the last element of `array`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.initial([1, 2, 3]); + * // => [1, 2] + */ + function initial(array) { + return dropRight(array, 1); + } + + /** + * Creates an array of unique values that are included in all of the provided + * arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of shared values. + * @example + * _.intersection([1, 2], [4, 2], [2, 1]); + * // => [2] + */ + var intersection = restParam(function(arrays) { + var othLength = arrays.length, + othIndex = othLength, + caches = Array(length), + indexOf = getIndexOf(), + isCommon = indexOf == baseIndexOf, + result = []; + + while (othIndex--) { + var value = arrays[othIndex] = isArrayLike(value = arrays[othIndex]) ? value : []; + caches[othIndex] = (isCommon && value.length >= 120) ? createCache(othIndex && value) : null; + } + var array = arrays[0], + index = -1, + length = array ? array.length : 0, + seen = caches[0]; + + outer: + while (++index < length) { + value = array[index]; + if ((seen ? cacheIndexOf(seen, value) : indexOf(result, value, 0)) < 0) { + var othIndex = othLength; + while (--othIndex) { + var cache = caches[othIndex]; + if ((cache ? cacheIndexOf(cache, value) : indexOf(arrays[othIndex], value, 0)) < 0) { + continue outer; + } + } + if (seen) { + seen.push(value); + } + result.push(value); + } + } + return result; + }); + + /** + * Gets the last element of `array`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the last element of `array`. + * @example + * + * _.last([1, 2, 3]); + * // => 3 + */ + function last(array) { + var length = array ? array.length : 0; + return length ? array[length - 1] : undefined; + } + + /** + * This method is like `_.indexOf` except that it iterates over elements of + * `array` from right to left. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to search. + * @param {*} value The value to search for. + * @param {boolean|number} [fromIndex=array.length-1] The index to search from + * or `true` to perform a binary search on a sorted array. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.lastIndexOf([1, 2, 1, 2], 2); + * // => 3 + * + * // using `fromIndex` + * _.lastIndexOf([1, 2, 1, 2], 2, 2); + * // => 1 + * + * // performing a binary search + * _.lastIndexOf([1, 1, 2, 2], 2, true); + * // => 3 + */ + function lastIndexOf(array, value, fromIndex) { + var length = array ? array.length : 0; + if (!length) { + return -1; + } + var index = length; + if (typeof fromIndex == 'number') { + index = (fromIndex < 0 ? nativeMax(length + fromIndex, 0) : nativeMin(fromIndex || 0, length - 1)) + 1; + } else if (fromIndex) { + index = binaryIndex(array, value, true) - 1; + var other = array[index]; + if (value === value ? (value === other) : (other !== other)) { + return index; + } + return -1; + } + if (value !== value) { + return indexOfNaN(array, index, true); + } + while (index--) { + if (array[index] === value) { + return index; + } + } + return -1; + } + + /** + * Removes all provided values from `array` using + * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.without`, this method mutates `array`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to modify. + * @param {...*} [values] The values to remove. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3, 1, 2, 3]; + * + * _.pull(array, 2, 3); + * console.log(array); + * // => [1, 1] + */ + function pull() { + var args = arguments, + array = args[0]; + + if (!(array && array.length)) { + return array; + } + var index = 0, + indexOf = getIndexOf(), + length = args.length; + + while (++index < length) { + var fromIndex = 0, + value = args[index]; + + while ((fromIndex = indexOf(array, value, fromIndex)) > -1) { + splice.call(array, fromIndex, 1); + } + } + return array; + } + + /** + * Removes elements from `array` corresponding to the given indexes and returns + * an array of the removed elements. Indexes may be specified as an array of + * indexes or as individual arguments. + * + * **Note:** Unlike `_.at`, this method mutates `array`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to modify. + * @param {...(number|number[])} [indexes] The indexes of elements to remove, + * specified as individual indexes or arrays of indexes. + * @returns {Array} Returns the new array of removed elements. + * @example + * + * var array = [5, 10, 15, 20]; + * var evens = _.pullAt(array, 1, 3); + * + * console.log(array); + * // => [5, 15] + * + * console.log(evens); + * // => [10, 20] + */ + var pullAt = restParam(function(array, indexes) { + indexes = baseFlatten(indexes); + + var result = baseAt(array, indexes); + basePullAt(array, indexes.sort(baseCompareAscending)); + return result; + }); + + /** + * Removes all elements from `array` that `predicate` returns truthy for + * and returns an array of the removed elements. The predicate is bound to + * `thisArg` and invoked with three arguments: (value, index, array). + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * **Note:** Unlike `_.filter`, this method mutates `array`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to modify. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {Array} Returns the new array of removed elements. + * @example + * + * var array = [1, 2, 3, 4]; + * var evens = _.remove(array, function(n) { + * return n % 2 == 0; + * }); + * + * console.log(array); + * // => [1, 3] + * + * console.log(evens); + * // => [2, 4] + */ + function remove(array, predicate, thisArg) { + var result = []; + if (!(array && array.length)) { + return result; + } + var index = -1, + indexes = [], + length = array.length; + + predicate = getCallback(predicate, thisArg, 3); + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result.push(value); + indexes.push(index); + } + } + basePullAt(array, indexes); + return result; + } + + /** + * Gets all but the first element of `array`. + * + * @static + * @memberOf _ + * @alias tail + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.rest([1, 2, 3]); + * // => [2, 3] + */ + function rest(array) { + return drop(array, 1); + } + + /** + * Creates a slice of `array` from `start` up to, but not including, `end`. + * + * **Note:** This method is used instead of `Array#slice` to support node + * lists in IE < 9 and to ensure dense arrays are returned. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function slice(array, start, end) { + var length = array ? array.length : 0; + if (!length) { + return []; + } + if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { + start = 0; + end = length; + } + return baseSlice(array, start, end); + } + + /** + * Uses a binary search to determine the lowest index at which `value` should + * be inserted into `array` in order to maintain its sort order. If an iteratee + * function is provided it is invoked for `value` and each element of `array` + * to compute their sort ranking. The iteratee is bound to `thisArg` and + * invoked with one argument; (value). + * + * If a property name is provided for `iteratee` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `iteratee` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @param {Function|Object|string} [iteratee=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + * @example + * + * _.sortedIndex([30, 50], 40); + * // => 1 + * + * _.sortedIndex([4, 4, 5, 5], 5); + * // => 2 + * + * var dict = { 'data': { 'thirty': 30, 'forty': 40, 'fifty': 50 } }; + * + * // using an iteratee function + * _.sortedIndex(['thirty', 'fifty'], 'forty', function(word) { + * return this.data[word]; + * }, dict); + * // => 1 + * + * // using the `_.property` callback shorthand + * _.sortedIndex([{ 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x'); + * // => 1 + */ + var sortedIndex = createSortedIndex(); + + /** + * This method is like `_.sortedIndex` except that it returns the highest + * index at which `value` should be inserted into `array` in order to + * maintain its sort order. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The sorted array to inspect. + * @param {*} value The value to evaluate. + * @param {Function|Object|string} [iteratee=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {number} Returns the index at which `value` should be inserted + * into `array`. + * @example + * + * _.sortedLastIndex([4, 4, 5, 5], 5); + * // => 4 + */ + var sortedLastIndex = createSortedIndex(true); + + /** + * Creates a slice of `array` with `n` elements taken from the beginning. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.take([1, 2, 3]); + * // => [1] + * + * _.take([1, 2, 3], 2); + * // => [1, 2] + * + * _.take([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.take([1, 2, 3], 0); + * // => [] + */ + function take(array, n, guard) { + var length = array ? array.length : 0; + if (!length) { + return []; + } + if (guard ? isIterateeCall(array, n, guard) : n == null) { + n = 1; + } + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` with `n` elements taken from the end. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.takeRight([1, 2, 3]); + * // => [3] + * + * _.takeRight([1, 2, 3], 2); + * // => [2, 3] + * + * _.takeRight([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.takeRight([1, 2, 3], 0); + * // => [] + */ + function takeRight(array, n, guard) { + var length = array ? array.length : 0; + if (!length) { + return []; + } + if (guard ? isIterateeCall(array, n, guard) : n == null) { + n = 1; + } + n = length - (+n || 0); + return baseSlice(array, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` with elements taken from the end. Elements are + * taken until `predicate` returns falsey. The predicate is bound to `thisArg` + * and invoked with three arguments: (value, index, array). + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to query. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.takeRightWhile([1, 2, 3], function(n) { + * return n > 1; + * }); + * // => [2, 3] + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * // using the `_.matches` callback shorthand + * _.pluck(_.takeRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user'); + * // => ['pebbles'] + * + * // using the `_.matchesProperty` callback shorthand + * _.pluck(_.takeRightWhile(users, 'active', false), 'user'); + * // => ['fred', 'pebbles'] + * + * // using the `_.property` callback shorthand + * _.pluck(_.takeRightWhile(users, 'active'), 'user'); + * // => [] + */ + function takeRightWhile(array, predicate, thisArg) { + return (array && array.length) + ? baseWhile(array, getCallback(predicate, thisArg, 3), false, true) + : []; + } + + /** + * Creates a slice of `array` with elements taken from the beginning. Elements + * are taken until `predicate` returns falsey. The predicate is bound to + * `thisArg` and invoked with three arguments: (value, index, array). + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to query. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.takeWhile([1, 2, 3], function(n) { + * return n < 3; + * }); + * // => [1, 2] + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false}, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * // using the `_.matches` callback shorthand + * _.pluck(_.takeWhile(users, { 'user': 'barney', 'active': false }), 'user'); + * // => ['barney'] + * + * // using the `_.matchesProperty` callback shorthand + * _.pluck(_.takeWhile(users, 'active', false), 'user'); + * // => ['barney', 'fred'] + * + * // using the `_.property` callback shorthand + * _.pluck(_.takeWhile(users, 'active'), 'user'); + * // => [] + */ + function takeWhile(array, predicate, thisArg) { + return (array && array.length) + ? baseWhile(array, getCallback(predicate, thisArg, 3)) + : []; + } + + /** + * Creates an array of unique values, in order, from all of the provided arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of combined values. + * @example + * + * _.union([1, 2], [4, 2], [2, 1]); + * // => [1, 2, 4] + */ + var union = restParam(function(arrays) { + return baseUniq(baseFlatten(arrays, false, true)); + }); + + /** + * Creates a duplicate-free version of an array, using + * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) + * for equality comparisons, in which only the first occurence of each element + * is kept. Providing `true` for `isSorted` performs a faster search algorithm + * for sorted arrays. If an iteratee function is provided it is invoked for + * each element in the array to generate the criterion by which uniqueness + * is computed. The `iteratee` is bound to `thisArg` and invoked with three + * arguments: (value, index, array). + * + * If a property name is provided for `iteratee` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `iteratee` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @alias unique + * @category Array + * @param {Array} array The array to inspect. + * @param {boolean} [isSorted] Specify the array is sorted. + * @param {Function|Object|string} [iteratee] The function invoked per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Array} Returns the new duplicate-value-free array. + * @example + * + * _.uniq([2, 1, 2]); + * // => [2, 1] + * + * // using `isSorted` + * _.uniq([1, 1, 2], true); + * // => [1, 2] + * + * // using an iteratee function + * _.uniq([1, 2.5, 1.5, 2], function(n) { + * return this.floor(n); + * }, Math); + * // => [1, 2.5] + * + * // using the `_.property` callback shorthand + * _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }, { 'x': 2 }] + */ + function uniq(array, isSorted, iteratee, thisArg) { + var length = array ? array.length : 0; + if (!length) { + return []; + } + if (isSorted != null && typeof isSorted != 'boolean') { + thisArg = iteratee; + iteratee = isIterateeCall(array, isSorted, thisArg) ? undefined : isSorted; + isSorted = false; + } + var callback = getCallback(); + if (!(iteratee == null && callback === baseCallback)) { + iteratee = callback(iteratee, thisArg, 3); + } + return (isSorted && getIndexOf() == baseIndexOf) + ? sortedUniq(array, iteratee) + : baseUniq(array, iteratee); + } + + /** + * This method is like `_.zip` except that it accepts an array of grouped + * elements and creates an array regrouping the elements to their pre-zip + * configuration. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array of grouped elements to process. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip(['fred', 'barney'], [30, 40], [true, false]); + * // => [['fred', 30, true], ['barney', 40, false]] + * + * _.unzip(zipped); + * // => [['fred', 'barney'], [30, 40], [true, false]] + */ + function unzip(array) { + if (!(array && array.length)) { + return []; + } + var index = -1, + length = 0; + + array = arrayFilter(array, function(group) { + if (isArrayLike(group)) { + length = nativeMax(group.length, length); + return true; + } + }); + var result = Array(length); + while (++index < length) { + result[index] = arrayMap(array, baseProperty(index)); + } + return result; + } + + /** + * This method is like `_.unzip` except that it accepts an iteratee to specify + * how regrouped values should be combined. The `iteratee` is bound to `thisArg` + * and invoked with four arguments: (accumulator, value, index, group). + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array of grouped elements to process. + * @param {Function} [iteratee] The function to combine regrouped values. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip([1, 2], [10, 20], [100, 200]); + * // => [[1, 10, 100], [2, 20, 200]] + * + * _.unzipWith(zipped, _.add); + * // => [3, 30, 300] + */ + function unzipWith(array, iteratee, thisArg) { + var length = array ? array.length : 0; + if (!length) { + return []; + } + var result = unzip(array); + if (iteratee == null) { + return result; + } + iteratee = bindCallback(iteratee, thisArg, 4); + return arrayMap(result, function(group) { + return arrayReduce(group, iteratee, undefined, true); + }); + } + + /** + * Creates an array excluding all provided values using + * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to filter. + * @param {...*} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.without([1, 2, 1, 3], 1, 2); + * // => [3] + */ + var without = restParam(function(array, values) { + return isArrayLike(array) + ? baseDifference(array, values) + : []; + }); + + /** + * Creates an array of unique values that is the [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference) + * of the provided arrays. + * + * @static + * @memberOf _ + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of values. + * @example + * + * _.xor([1, 2], [4, 2]); + * // => [1, 4] + */ + function xor() { + var index = -1, + length = arguments.length; + + while (++index < length) { + var array = arguments[index]; + if (isArrayLike(array)) { + var result = result + ? arrayPush(baseDifference(result, array), baseDifference(array, result)) + : array; + } + } + return result ? baseUniq(result) : []; + } + + /** + * Creates an array of grouped elements, the first of which contains the first + * elements of the given arrays, the second of which contains the second elements + * of the given arrays, and so on. + * + * @static + * @memberOf _ + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zip(['fred', 'barney'], [30, 40], [true, false]); + * // => [['fred', 30, true], ['barney', 40, false]] + */ + var zip = restParam(unzip); + + /** + * The inverse of `_.pairs`; this method returns an object composed from arrays + * of property names and values. Provide either a single two dimensional array, + * e.g. `[[key1, value1], [key2, value2]]` or two arrays, one of property names + * and one of corresponding values. + * + * @static + * @memberOf _ + * @alias object + * @category Array + * @param {Array} props The property names. + * @param {Array} [values=[]] The property values. + * @returns {Object} Returns the new object. + * @example + * + * _.zipObject([['fred', 30], ['barney', 40]]); + * // => { 'fred': 30, 'barney': 40 } + * + * _.zipObject(['fred', 'barney'], [30, 40]); + * // => { 'fred': 30, 'barney': 40 } + */ + function zipObject(props, values) { + var index = -1, + length = props ? props.length : 0, + result = {}; + + if (length && !values && !isArray(props[0])) { + values = []; + } + while (++index < length) { + var key = props[index]; + if (values) { + result[key] = values[index]; + } else if (key) { + result[key[0]] = key[1]; + } + } + return result; + } + + /** + * This method is like `_.zip` except that it accepts an iteratee to specify + * how grouped values should be combined. The `iteratee` is bound to `thisArg` + * and invoked with four arguments: (accumulator, value, index, group). + * + * @static + * @memberOf _ + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @param {Function} [iteratee] The function to combine grouped values. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zipWith([1, 2], [10, 20], [100, 200], _.add); + * // => [111, 222] + */ + var zipWith = restParam(function(arrays) { + var length = arrays.length, + iteratee = length > 2 ? arrays[length - 2] : undefined, + thisArg = length > 1 ? arrays[length - 1] : undefined; + + if (length > 2 && typeof iteratee == 'function') { + length -= 2; + } else { + iteratee = (length > 1 && typeof thisArg == 'function') ? (--length, thisArg) : undefined; + thisArg = undefined; + } + arrays.length = length; + return unzipWith(arrays, iteratee, thisArg); + }); + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` object that wraps `value` with explicit method + * chaining enabled. + * + * @static + * @memberOf _ + * @category Chain + * @param {*} value The value to wrap. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'pebbles', 'age': 1 } + * ]; + * + * var youngest = _.chain(users) + * .sortBy('age') + * .map(function(chr) { + * return chr.user + ' is ' + chr.age; + * }) + * .first() + * .value(); + * // => 'pebbles is 1' + */ + function chain(value) { + var result = lodash(value); + result.__chain__ = true; + return result; + } + + /** + * This method invokes `interceptor` and returns `value`. The interceptor is + * bound to `thisArg` and invoked with one argument; (value). The purpose of + * this method is to "tap into" a method chain in order to perform operations + * on intermediate results within the chain. + * + * @static + * @memberOf _ + * @category Chain + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @param {*} [thisArg] The `this` binding of `interceptor`. + * @returns {*} Returns `value`. + * @example + * + * _([1, 2, 3]) + * .tap(function(array) { + * array.pop(); + * }) + * .reverse() + * .value(); + * // => [2, 1] + */ + function tap(value, interceptor, thisArg) { + interceptor.call(thisArg, value); + return value; + } + + /** + * This method is like `_.tap` except that it returns the result of `interceptor`. + * + * @static + * @memberOf _ + * @category Chain + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @param {*} [thisArg] The `this` binding of `interceptor`. + * @returns {*} Returns the result of `interceptor`. + * @example + * + * _(' abc ') + * .chain() + * .trim() + * .thru(function(value) { + * return [value]; + * }) + * .value(); + * // => ['abc'] + */ + function thru(value, interceptor, thisArg) { + return interceptor.call(thisArg, value); + } + + /** + * Enables explicit method chaining on the wrapper object. + * + * @name chain + * @memberOf _ + * @category Chain + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 } + * ]; + * + * // without explicit chaining + * _(users).first(); + * // => { 'user': 'barney', 'age': 36 } + * + * // with explicit chaining + * _(users).chain() + * .first() + * .pick('user') + * .value(); + * // => { 'user': 'barney' } + */ + function wrapperChain() { + return chain(this); + } + + /** + * Executes the chained sequence and returns the wrapped result. + * + * @name commit + * @memberOf _ + * @category Chain + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2]; + * var wrapped = _(array).push(3); + * + * console.log(array); + * // => [1, 2] + * + * wrapped = wrapped.commit(); + * console.log(array); + * // => [1, 2, 3] + * + * wrapped.last(); + * // => 3 + * + * console.log(array); + * // => [1, 2, 3] + */ + function wrapperCommit() { + return new LodashWrapper(this.value(), this.__chain__); + } + + /** + * Creates a new array joining a wrapped array with any additional arrays + * and/or values. + * + * @name concat + * @memberOf _ + * @category Chain + * @param {...*} [values] The values to concatenate. + * @returns {Array} Returns the new concatenated array. + * @example + * + * var array = [1]; + * var wrapped = _(array).concat(2, [3], [[4]]); + * + * console.log(wrapped.value()); + * // => [1, 2, 3, [4]] + * + * console.log(array); + * // => [1] + */ + var wrapperConcat = restParam(function(values) { + values = baseFlatten(values); + return this.thru(function(array) { + return arrayConcat(isArray(array) ? array : [toObject(array)], values); + }); + }); + + /** + * Creates a clone of the chained sequence planting `value` as the wrapped value. + * + * @name plant + * @memberOf _ + * @category Chain + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2]; + * var wrapped = _(array).map(function(value) { + * return Math.pow(value, 2); + * }); + * + * var other = [3, 4]; + * var otherWrapped = wrapped.plant(other); + * + * otherWrapped.value(); + * // => [9, 16] + * + * wrapped.value(); + * // => [1, 4] + */ + function wrapperPlant(value) { + var result, + parent = this; + + while (parent instanceof baseLodash) { + var clone = wrapperClone(parent); + if (result) { + previous.__wrapped__ = clone; + } else { + result = clone; + } + var previous = clone; + parent = parent.__wrapped__; + } + previous.__wrapped__ = value; + return result; + } + + /** + * Reverses the wrapped array so the first element becomes the last, the + * second element becomes the second to last, and so on. + * + * **Note:** This method mutates the wrapped array. + * + * @name reverse + * @memberOf _ + * @category Chain + * @returns {Object} Returns the new reversed `lodash` wrapper instance. + * @example + * + * var array = [1, 2, 3]; + * + * _(array).reverse().value() + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function wrapperReverse() { + var value = this.__wrapped__; + + var interceptor = function(value) { + return (wrapped && wrapped.__dir__ < 0) ? value : value.reverse(); + }; + if (value instanceof LazyWrapper) { + var wrapped = value; + if (this.__actions__.length) { + wrapped = new LazyWrapper(this); + } + wrapped = wrapped.reverse(); + wrapped.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); + return new LodashWrapper(wrapped, this.__chain__); + } + return this.thru(interceptor); + } + + /** + * Produces the result of coercing the unwrapped value to a string. + * + * @name toString + * @memberOf _ + * @category Chain + * @returns {string} Returns the coerced string value. + * @example + * + * _([1, 2, 3]).toString(); + * // => '1,2,3' + */ + function wrapperToString() { + return (this.value() + ''); + } + + /** + * Executes the chained sequence to extract the unwrapped value. + * + * @name value + * @memberOf _ + * @alias run, toJSON, valueOf + * @category Chain + * @returns {*} Returns the resolved unwrapped value. + * @example + * + * _([1, 2, 3]).value(); + * // => [1, 2, 3] + */ + function wrapperValue() { + return baseWrapperValue(this.__wrapped__, this.__actions__); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of elements corresponding to the given keys, or indexes, + * of `collection`. Keys may be specified as individual arguments or as arrays + * of keys. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {...(number|number[]|string|string[])} [props] The property names + * or indexes of elements to pick, specified individually or in arrays. + * @returns {Array} Returns the new array of picked elements. + * @example + * + * _.at(['a', 'b', 'c'], [0, 2]); + * // => ['a', 'c'] + * + * _.at(['barney', 'fred', 'pebbles'], 0, 2); + * // => ['barney', 'pebbles'] + */ + var at = restParam(function(collection, props) { + return baseAt(collection, baseFlatten(props)); + }); + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` through `iteratee`. The corresponding value + * of each key is the number of times the key was returned by `iteratee`. + * The `iteratee` is bound to `thisArg` and invoked with three arguments: + * (value, index|key, collection). + * + * If a property name is provided for `iteratee` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `iteratee` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function|Object|string} [iteratee=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.countBy([4.3, 6.1, 6.4], function(n) { + * return Math.floor(n); + * }); + * // => { '4': 1, '6': 2 } + * + * _.countBy([4.3, 6.1, 6.4], function(n) { + * return this.floor(n); + * }, Math); + * // => { '4': 1, '6': 2 } + * + * _.countBy(['one', 'two', 'three'], 'length'); + * // => { '3': 2, '5': 1 } + */ + var countBy = createAggregator(function(result, value, key) { + hasOwnProperty.call(result, key) ? ++result[key] : (result[key] = 1); + }); + + /** + * Checks if `predicate` returns truthy for **all** elements of `collection`. + * The predicate is bound to `thisArg` and invoked with three arguments: + * (value, index|key, collection). + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @alias all + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + * @example + * + * _.every([true, 1, null, 'yes'], Boolean); + * // => false + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false } + * ]; + * + * // using the `_.matches` callback shorthand + * _.every(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // using the `_.matchesProperty` callback shorthand + * _.every(users, 'active', false); + * // => true + * + * // using the `_.property` callback shorthand + * _.every(users, 'active'); + * // => false + */ + function every(collection, predicate, thisArg) { + var func = isArray(collection) ? arrayEvery : baseEvery; + if (thisArg && isIterateeCall(collection, predicate, thisArg)) { + predicate = undefined; + } + if (typeof predicate != 'function' || thisArg !== undefined) { + predicate = getCallback(predicate, thisArg, 3); + } + return func(collection, predicate); + } + + /** + * Iterates over elements of `collection`, returning an array of all elements + * `predicate` returns truthy for. The predicate is bound to `thisArg` and + * invoked with three arguments: (value, index|key, collection). + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @alias select + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {Array} Returns the new filtered array. + * @example + * + * _.filter([4, 5, 6], function(n) { + * return n % 2 == 0; + * }); + * // => [4, 6] + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // using the `_.matches` callback shorthand + * _.pluck(_.filter(users, { 'age': 36, 'active': true }), 'user'); + * // => ['barney'] + * + * // using the `_.matchesProperty` callback shorthand + * _.pluck(_.filter(users, 'active', false), 'user'); + * // => ['fred'] + * + * // using the `_.property` callback shorthand + * _.pluck(_.filter(users, 'active'), 'user'); + * // => ['barney'] + */ + function filter(collection, predicate, thisArg) { + var func = isArray(collection) ? arrayFilter : baseFilter; + predicate = getCallback(predicate, thisArg, 3); + return func(collection, predicate); + } + + /** + * Iterates over elements of `collection`, returning the first element + * `predicate` returns truthy for. The predicate is bound to `thisArg` and + * invoked with three arguments: (value, index|key, collection). + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @alias detect + * @category Collection + * @param {Array|Object|string} collection The collection to search. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false }, + * { 'user': 'pebbles', 'age': 1, 'active': true } + * ]; + * + * _.result(_.find(users, function(chr) { + * return chr.age < 40; + * }), 'user'); + * // => 'barney' + * + * // using the `_.matches` callback shorthand + * _.result(_.find(users, { 'age': 1, 'active': true }), 'user'); + * // => 'pebbles' + * + * // using the `_.matchesProperty` callback shorthand + * _.result(_.find(users, 'active', false), 'user'); + * // => 'fred' + * + * // using the `_.property` callback shorthand + * _.result(_.find(users, 'active'), 'user'); + * // => 'barney' + */ + var find = createFind(baseEach); + + /** + * This method is like `_.find` except that it iterates over elements of + * `collection` from right to left. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to search. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * _.findLast([1, 2, 3, 4], function(n) { + * return n % 2 == 1; + * }); + * // => 3 + */ + var findLast = createFind(baseEachRight, true); + + /** + * Performs a deep comparison between each element in `collection` and the + * source object, returning the first element that has equivalent property + * values. + * + * **Note:** This method supports comparing arrays, booleans, `Date` objects, + * numbers, `Object` objects, regexes, and strings. Objects are compared by + * their own, not inherited, enumerable properties. For comparing a single + * own or inherited property value see `_.matchesProperty`. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to search. + * @param {Object} source The object of property values to match. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * _.result(_.findWhere(users, { 'age': 36, 'active': true }), 'user'); + * // => 'barney' + * + * _.result(_.findWhere(users, { 'age': 40, 'active': false }), 'user'); + * // => 'fred' + */ + function findWhere(collection, source) { + return find(collection, baseMatches(source)); + } + + /** + * Iterates over elements of `collection` invoking `iteratee` for each element. + * The `iteratee` is bound to `thisArg` and invoked with three arguments: + * (value, index|key, collection). Iteratee functions may exit iteration early + * by explicitly returning `false`. + * + * **Note:** As with other "Collections" methods, objects with a "length" property + * are iterated like arrays. To avoid this behavior `_.forIn` or `_.forOwn` + * may be used for object iteration. + * + * @static + * @memberOf _ + * @alias each + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Array|Object|string} Returns `collection`. + * @example + * + * _([1, 2]).forEach(function(n) { + * console.log(n); + * }).value(); + * // => logs each value from left to right and returns the array + * + * _.forEach({ 'a': 1, 'b': 2 }, function(n, key) { + * console.log(n, key); + * }); + * // => logs each value-key pair and returns the object (iteration order is not guaranteed) + */ + var forEach = createForEach(arrayEach, baseEach); + + /** + * This method is like `_.forEach` except that it iterates over elements of + * `collection` from right to left. + * + * @static + * @memberOf _ + * @alias eachRight + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Array|Object|string} Returns `collection`. + * @example + * + * _([1, 2]).forEachRight(function(n) { + * console.log(n); + * }).value(); + * // => logs each value from right to left and returns the array + */ + var forEachRight = createForEach(arrayEachRight, baseEachRight); + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` through `iteratee`. The corresponding value + * of each key is an array of the elements responsible for generating the key. + * The `iteratee` is bound to `thisArg` and invoked with three arguments: + * (value, index|key, collection). + * + * If a property name is provided for `iteratee` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `iteratee` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function|Object|string} [iteratee=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.groupBy([4.2, 6.1, 6.4], function(n) { + * return Math.floor(n); + * }); + * // => { '4': [4.2], '6': [6.1, 6.4] } + * + * _.groupBy([4.2, 6.1, 6.4], function(n) { + * return this.floor(n); + * }, Math); + * // => { '4': [4.2], '6': [6.1, 6.4] } + * + * // using the `_.property` callback shorthand + * _.groupBy(['one', 'two', 'three'], 'length'); + * // => { '3': ['one', 'two'], '5': ['three'] } + */ + var groupBy = createAggregator(function(result, value, key) { + if (hasOwnProperty.call(result, key)) { + result[key].push(value); + } else { + result[key] = [value]; + } + }); + + /** + * Checks if `value` is in `collection` using + * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it is used as the offset + * from the end of `collection`. + * + * @static + * @memberOf _ + * @alias contains, include + * @category Collection + * @param {Array|Object|string} collection The collection to search. + * @param {*} target The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`. + * @returns {boolean} Returns `true` if a matching element is found, else `false`. + * @example + * + * _.includes([1, 2, 3], 1); + * // => true + * + * _.includes([1, 2, 3], 1, 2); + * // => false + * + * _.includes({ 'user': 'fred', 'age': 40 }, 'fred'); + * // => true + * + * _.includes('pebbles', 'eb'); + * // => true + */ + function includes(collection, target, fromIndex, guard) { + var length = collection ? getLength(collection) : 0; + if (!isLength(length)) { + collection = values(collection); + length = collection.length; + } + if (typeof fromIndex != 'number' || (guard && isIterateeCall(target, fromIndex, guard))) { + fromIndex = 0; + } else { + fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0); + } + return (typeof collection == 'string' || !isArray(collection) && isString(collection)) + ? (fromIndex <= length && collection.indexOf(target, fromIndex) > -1) + : (!!length && getIndexOf(collection, target, fromIndex) > -1); + } + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` through `iteratee`. The corresponding value + * of each key is the last element responsible for generating the key. The + * iteratee function is bound to `thisArg` and invoked with three arguments: + * (value, index|key, collection). + * + * If a property name is provided for `iteratee` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `iteratee` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function|Object|string} [iteratee=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * var keyData = [ + * { 'dir': 'left', 'code': 97 }, + * { 'dir': 'right', 'code': 100 } + * ]; + * + * _.indexBy(keyData, 'dir'); + * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } } + * + * _.indexBy(keyData, function(object) { + * return String.fromCharCode(object.code); + * }); + * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } } + * + * _.indexBy(keyData, function(object) { + * return this.fromCharCode(object.code); + * }, String); + * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } } + */ + var indexBy = createAggregator(function(result, value, key) { + result[key] = value; + }); + + /** + * Invokes the method at `path` of each element in `collection`, returning + * an array of the results of each invoked method. Any additional arguments + * are provided to each invoked method. If `methodName` is a function it is + * invoked for, and `this` bound to, each element in `collection`. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Array|Function|string} path The path of the method to invoke or + * the function invoked per iteration. + * @param {...*} [args] The arguments to invoke the method with. + * @returns {Array} Returns the array of results. + * @example + * + * _.invoke([[5, 1, 7], [3, 2, 1]], 'sort'); + * // => [[1, 5, 7], [1, 2, 3]] + * + * _.invoke([123, 456], String.prototype.split, ''); + * // => [['1', '2', '3'], ['4', '5', '6']] + */ + var invoke = restParam(function(collection, path, args) { + var index = -1, + isFunc = typeof path == 'function', + isProp = isKey(path), + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value) { + var func = isFunc ? path : ((isProp && value != null) ? value[path] : undefined); + result[++index] = func ? func.apply(value, args) : invokePath(value, path, args); + }); + return result; + }); + + /** + * Creates an array of values by running each element in `collection` through + * `iteratee`. The `iteratee` is bound to `thisArg` and invoked with three + * arguments: (value, index|key, collection). + * + * If a property name is provided for `iteratee` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `iteratee` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. + * + * The guarded methods are: + * `ary`, `callback`, `chunk`, `clone`, `create`, `curry`, `curryRight`, + * `drop`, `dropRight`, `every`, `fill`, `flatten`, `invert`, `max`, `min`, + * `parseInt`, `slice`, `sortBy`, `take`, `takeRight`, `template`, `trim`, + * `trimLeft`, `trimRight`, `trunc`, `random`, `range`, `sample`, `some`, + * `sum`, `uniq`, and `words` + * + * @static + * @memberOf _ + * @alias collect + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function|Object|string} [iteratee=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Array} Returns the new mapped array. + * @example + * + * function timesThree(n) { + * return n * 3; + * } + * + * _.map([1, 2], timesThree); + * // => [3, 6] + * + * _.map({ 'a': 1, 'b': 2 }, timesThree); + * // => [3, 6] (iteration order is not guaranteed) + * + * var users = [ + * { 'user': 'barney' }, + * { 'user': 'fred' } + * ]; + * + * // using the `_.property` callback shorthand + * _.map(users, 'user'); + * // => ['barney', 'fred'] + */ + function map(collection, iteratee, thisArg) { + var func = isArray(collection) ? arrayMap : baseMap; + iteratee = getCallback(iteratee, thisArg, 3); + return func(collection, iteratee); + } + + /** + * Creates an array of elements split into two groups, the first of which + * contains elements `predicate` returns truthy for, while the second of which + * contains elements `predicate` returns falsey for. The predicate is bound + * to `thisArg` and invoked with three arguments: (value, index|key, collection). + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {Array} Returns the array of grouped elements. + * @example + * + * _.partition([1, 2, 3], function(n) { + * return n % 2; + * }); + * // => [[1, 3], [2]] + * + * _.partition([1.2, 2.3, 3.4], function(n) { + * return this.floor(n) % 2; + * }, Math); + * // => [[1.2, 3.4], [2.3]] + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true }, + * { 'user': 'pebbles', 'age': 1, 'active': false } + * ]; + * + * var mapper = function(array) { + * return _.pluck(array, 'user'); + * }; + * + * // using the `_.matches` callback shorthand + * _.map(_.partition(users, { 'age': 1, 'active': false }), mapper); + * // => [['pebbles'], ['barney', 'fred']] + * + * // using the `_.matchesProperty` callback shorthand + * _.map(_.partition(users, 'active', false), mapper); + * // => [['barney', 'pebbles'], ['fred']] + * + * // using the `_.property` callback shorthand + * _.map(_.partition(users, 'active'), mapper); + * // => [['fred'], ['barney', 'pebbles']] + */ + var partition = createAggregator(function(result, value, key) { + result[key ? 0 : 1].push(value); + }, function() { return [[], []]; }); + + /** + * Gets the property value of `path` from all elements in `collection`. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Array|string} path The path of the property to pluck. + * @returns {Array} Returns the property values. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 } + * ]; + * + * _.pluck(users, 'user'); + * // => ['barney', 'fred'] + * + * var userIndex = _.indexBy(users, 'user'); + * _.pluck(userIndex, 'age'); + * // => [36, 40] (iteration order is not guaranteed) + */ + function pluck(collection, path) { + return map(collection, property(path)); + } + + /** + * Reduces `collection` to a value which is the accumulated result of running + * each element in `collection` through `iteratee`, where each successive + * invocation is supplied the return value of the previous. If `accumulator` + * is not provided the first element of `collection` is used as the initial + * value. The `iteratee` is bound to `thisArg` and invoked with four arguments: + * (accumulator, value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.reduce`, `_.reduceRight`, and `_.transform`. + * + * The guarded methods are: + * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `sortByAll`, + * and `sortByOrder` + * + * @static + * @memberOf _ + * @alias foldl, inject + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {*} Returns the accumulated value. + * @example + * + * _.reduce([1, 2], function(total, n) { + * return total + n; + * }); + * // => 3 + * + * _.reduce({ 'a': 1, 'b': 2 }, function(result, n, key) { + * result[key] = n * 3; + * return result; + * }, {}); + * // => { 'a': 3, 'b': 6 } (iteration order is not guaranteed) + */ + var reduce = createReduce(arrayReduce, baseEach); + + /** + * This method is like `_.reduce` except that it iterates over elements of + * `collection` from right to left. + * + * @static + * @memberOf _ + * @alias foldr + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {*} Returns the accumulated value. + * @example + * + * var array = [[0, 1], [2, 3], [4, 5]]; + * + * _.reduceRight(array, function(flattened, other) { + * return flattened.concat(other); + * }, []); + * // => [4, 5, 2, 3, 0, 1] + */ + var reduceRight = createReduce(arrayReduceRight, baseEachRight); + + /** + * The opposite of `_.filter`; this method returns the elements of `collection` + * that `predicate` does **not** return truthy for. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {Array} Returns the new filtered array. + * @example + * + * _.reject([1, 2, 3, 4], function(n) { + * return n % 2 == 0; + * }); + * // => [1, 3] + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true } + * ]; + * + * // using the `_.matches` callback shorthand + * _.pluck(_.reject(users, { 'age': 40, 'active': true }), 'user'); + * // => ['barney'] + * + * // using the `_.matchesProperty` callback shorthand + * _.pluck(_.reject(users, 'active', false), 'user'); + * // => ['fred'] + * + * // using the `_.property` callback shorthand + * _.pluck(_.reject(users, 'active'), 'user'); + * // => ['barney'] + */ + function reject(collection, predicate, thisArg) { + var func = isArray(collection) ? arrayFilter : baseFilter; + predicate = getCallback(predicate, thisArg, 3); + return func(collection, function(value, index, collection) { + return !predicate(value, index, collection); + }); + } + + /** + * Gets a random element or `n` random elements from a collection. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to sample. + * @param {number} [n] The number of elements to sample. + * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. + * @returns {*} Returns the random sample(s). + * @example + * + * _.sample([1, 2, 3, 4]); + * // => 2 + * + * _.sample([1, 2, 3, 4], 2); + * // => [3, 1] + */ + function sample(collection, n, guard) { + if (guard ? isIterateeCall(collection, n, guard) : n == null) { + collection = toIterable(collection); + var length = collection.length; + return length > 0 ? collection[baseRandom(0, length - 1)] : undefined; + } + var index = -1, + result = toArray(collection), + length = result.length, + lastIndex = length - 1; + + n = nativeMin(n < 0 ? 0 : (+n || 0), length); + while (++index < n) { + var rand = baseRandom(index, lastIndex), + value = result[rand]; + + result[rand] = result[index]; + result[index] = value; + } + result.length = n; + return result; + } + + /** + * Creates an array of shuffled values, using a version of the + * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle). + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to shuffle. + * @returns {Array} Returns the new shuffled array. + * @example + * + * _.shuffle([1, 2, 3, 4]); + * // => [4, 1, 3, 2] + */ + function shuffle(collection) { + return sample(collection, POSITIVE_INFINITY); + } + + /** + * Gets the size of `collection` by returning its length for array-like + * values or the number of own enumerable properties for objects. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @returns {number} Returns the size of `collection`. + * @example + * + * _.size([1, 2, 3]); + * // => 3 + * + * _.size({ 'a': 1, 'b': 2 }); + * // => 2 + * + * _.size('pebbles'); + * // => 7 + */ + function size(collection) { + var length = collection ? getLength(collection) : 0; + return isLength(length) ? length : keys(collection).length; + } + + /** + * Checks if `predicate` returns truthy for **any** element of `collection`. + * The function returns as soon as it finds a passing value and does not iterate + * over the entire collection. The predicate is bound to `thisArg` and invoked + * with three arguments: (value, index|key, collection). + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @alias any + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + * @example + * + * _.some([null, 0, 'yes', false], Boolean); + * // => true + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false } + * ]; + * + * // using the `_.matches` callback shorthand + * _.some(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // using the `_.matchesProperty` callback shorthand + * _.some(users, 'active', false); + * // => true + * + * // using the `_.property` callback shorthand + * _.some(users, 'active'); + * // => true + */ + function some(collection, predicate, thisArg) { + var func = isArray(collection) ? arraySome : baseSome; + if (thisArg && isIterateeCall(collection, predicate, thisArg)) { + predicate = undefined; + } + if (typeof predicate != 'function' || thisArg !== undefined) { + predicate = getCallback(predicate, thisArg, 3); + } + return func(collection, predicate); + } + + /** + * Creates an array of elements, sorted in ascending order by the results of + * running each element in a collection through `iteratee`. This method performs + * a stable sort, that is, it preserves the original sort order of equal elements. + * The `iteratee` is bound to `thisArg` and invoked with three arguments: + * (value, index|key, collection). + * + * If a property name is provided for `iteratee` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `iteratee` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function|Object|string} [iteratee=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Array} Returns the new sorted array. + * @example + * + * _.sortBy([1, 2, 3], function(n) { + * return Math.sin(n); + * }); + * // => [3, 1, 2] + * + * _.sortBy([1, 2, 3], function(n) { + * return this.sin(n); + * }, Math); + * // => [3, 1, 2] + * + * var users = [ + * { 'user': 'fred' }, + * { 'user': 'pebbles' }, + * { 'user': 'barney' } + * ]; + * + * // using the `_.property` callback shorthand + * _.pluck(_.sortBy(users, 'user'), 'user'); + * // => ['barney', 'fred', 'pebbles'] + */ + function sortBy(collection, iteratee, thisArg) { + if (collection == null) { + return []; + } + if (thisArg && isIterateeCall(collection, iteratee, thisArg)) { + iteratee = undefined; + } + var index = -1; + iteratee = getCallback(iteratee, thisArg, 3); + + var result = baseMap(collection, function(value, key, collection) { + return { 'criteria': iteratee(value, key, collection), 'index': ++index, 'value': value }; + }); + return baseSortBy(result, compareAscending); + } + + /** + * This method is like `_.sortBy` except that it can sort by multiple iteratees + * or property names. + * + * If a property name is provided for an iteratee the created `_.property` + * style callback returns the property value of the given element. + * + * If an object is provided for an iteratee the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {...(Function|Function[]|Object|Object[]|string|string[])} iteratees + * The iteratees to sort by, specified as individual values or arrays of values. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 42 }, + * { 'user': 'barney', 'age': 34 } + * ]; + * + * _.map(_.sortByAll(users, ['user', 'age']), _.values); + * // => [['barney', 34], ['barney', 36], ['fred', 42], ['fred', 48]] + * + * _.map(_.sortByAll(users, 'user', function(chr) { + * return Math.floor(chr.age / 10); + * }), _.values); + * // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]] + */ + var sortByAll = restParam(function(collection, iteratees) { + if (collection == null) { + return []; + } + var guard = iteratees[2]; + if (guard && isIterateeCall(iteratees[0], iteratees[1], guard)) { + iteratees.length = 1; + } + return baseSortByOrder(collection, baseFlatten(iteratees), []); + }); + + /** + * This method is like `_.sortByAll` except that it allows specifying the + * sort orders of the iteratees to sort by. If `orders` is unspecified, all + * values are sorted in ascending order. Otherwise, a value is sorted in + * ascending order if its corresponding order is "asc", and descending if "desc". + * + * If a property name is provided for an iteratee the created `_.property` + * style callback returns the property value of the given element. + * + * If an object is provided for an iteratee the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. + * @param {boolean[]} [orders] The sort orders of `iteratees`. + * @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 34 }, + * { 'user': 'fred', 'age': 42 }, + * { 'user': 'barney', 'age': 36 } + * ]; + * + * // sort by `user` in ascending order and by `age` in descending order + * _.map(_.sortByOrder(users, ['user', 'age'], ['asc', 'desc']), _.values); + * // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]] + */ + function sortByOrder(collection, iteratees, orders, guard) { + if (collection == null) { + return []; + } + if (guard && isIterateeCall(iteratees, orders, guard)) { + orders = undefined; + } + if (!isArray(iteratees)) { + iteratees = iteratees == null ? [] : [iteratees]; + } + if (!isArray(orders)) { + orders = orders == null ? [] : [orders]; + } + return baseSortByOrder(collection, iteratees, orders); + } + + /** + * Performs a deep comparison between each element in `collection` and the + * source object, returning an array of all elements that have equivalent + * property values. + * + * **Note:** This method supports comparing arrays, booleans, `Date` objects, + * numbers, `Object` objects, regexes, and strings. Objects are compared by + * their own, not inherited, enumerable properties. For comparing a single + * own or inherited property value see `_.matchesProperty`. + * + * @static + * @memberOf _ + * @category Collection + * @param {Array|Object|string} collection The collection to search. + * @param {Object} source The object of property values to match. + * @returns {Array} Returns the new filtered array. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false, 'pets': ['hoppy'] }, + * { 'user': 'fred', 'age': 40, 'active': true, 'pets': ['baby puss', 'dino'] } + * ]; + * + * _.pluck(_.where(users, { 'age': 36, 'active': false }), 'user'); + * // => ['barney'] + * + * _.pluck(_.where(users, { 'pets': ['dino'] }), 'user'); + * // => ['fred'] + */ + function where(collection, source) { + return filter(collection, baseMatches(source)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Gets the number of milliseconds that have elapsed since the Unix epoch + * (1 January 1970 00:00:00 UTC). + * + * @static + * @memberOf _ + * @category Date + * @example + * + * _.defer(function(stamp) { + * console.log(_.now() - stamp); + * }, _.now()); + * // => logs the number of milliseconds it took for the deferred function to be invoked + */ + var now = nativeNow || function() { + return new Date().getTime(); + }; + + /*------------------------------------------------------------------------*/ + + /** + * The opposite of `_.before`; this method creates a function that invokes + * `func` once it is called `n` or more times. + * + * @static + * @memberOf _ + * @category Function + * @param {number} n The number of calls before `func` is invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var saves = ['profile', 'settings']; + * + * var done = _.after(saves.length, function() { + * console.log('done saving!'); + * }); + * + * _.forEach(saves, function(type) { + * asyncSave({ 'type': type, 'complete': done }); + * }); + * // => logs 'done saving!' after the two async saves have completed + */ + function after(n, func) { + if (typeof func != 'function') { + if (typeof n == 'function') { + var temp = n; + n = func; + func = temp; + } else { + throw new TypeError(FUNC_ERROR_TEXT); + } + } + n = nativeIsFinite(n = +n) ? n : 0; + return function() { + if (--n < 1) { + return func.apply(this, arguments); + } + }; + } + + /** + * Creates a function that accepts up to `n` arguments ignoring any + * additional arguments. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to cap arguments for. + * @param {number} [n=func.length] The arity cap. + * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. + * @returns {Function} Returns the new function. + * @example + * + * _.map(['6', '8', '10'], _.ary(parseInt, 1)); + * // => [6, 8, 10] + */ + function ary(func, n, guard) { + if (guard && isIterateeCall(func, n, guard)) { + n = undefined; + } + n = (func && n == null) ? func.length : nativeMax(+n || 0, 0); + return createWrapper(func, ARY_FLAG, undefined, undefined, undefined, undefined, n); + } + + /** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it is called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery('#add').on('click', _.before(5, addContactToList)); + * // => allows adding up to 4 contacts to the list + */ + function before(n, func) { + var result; + if (typeof func != 'function') { + if (typeof n == 'function') { + var temp = n; + n = func; + func = temp; + } else { + throw new TypeError(FUNC_ERROR_TEXT); + } + } + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; + }; + } + + /** + * Creates a function that invokes `func` with the `this` binding of `thisArg` + * and prepends any additional `_.bind` arguments to those provided to the + * bound function. + * + * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for partially applied arguments. + * + * **Note:** Unlike native `Function#bind` this method does not set the "length" + * property of bound functions. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * var greet = function(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * }; + * + * var object = { 'user': 'fred' }; + * + * var bound = _.bind(greet, object, 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * // using placeholders + * var bound = _.bind(greet, object, _, '!'); + * bound('hi'); + * // => 'hi fred!' + */ + var bind = restParam(function(func, thisArg, partials) { + var bitmask = BIND_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, bind.placeholder); + bitmask |= PARTIAL_FLAG; + } + return createWrapper(func, bitmask, thisArg, partials, holders); + }); + + /** + * Binds methods of an object to the object itself, overwriting the existing + * method. Method names may be specified as individual arguments or as arrays + * of method names. If no method names are provided all enumerable function + * properties, own and inherited, of `object` are bound. + * + * **Note:** This method does not set the "length" property of bound functions. + * + * @static + * @memberOf _ + * @category Function + * @param {Object} object The object to bind and assign the bound methods to. + * @param {...(string|string[])} [methodNames] The object method names to bind, + * specified as individual method names or arrays of method names. + * @returns {Object} Returns `object`. + * @example + * + * var view = { + * 'label': 'docs', + * 'onClick': function() { + * console.log('clicked ' + this.label); + * } + * }; + * + * _.bindAll(view); + * jQuery('#docs').on('click', view.onClick); + * // => logs 'clicked docs' when the element is clicked + */ + var bindAll = restParam(function(object, methodNames) { + methodNames = methodNames.length ? baseFlatten(methodNames) : functions(object); + + var index = -1, + length = methodNames.length; + + while (++index < length) { + var key = methodNames[index]; + object[key] = createWrapper(object[key], BIND_FLAG, object); + } + return object; + }); + + /** + * Creates a function that invokes the method at `object[key]` and prepends + * any additional `_.bindKey` arguments to those provided to the bound function. + * + * This method differs from `_.bind` by allowing bound functions to reference + * methods that may be redefined or don't yet exist. + * See [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern) + * for more details. + * + * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic + * builds, may be used as a placeholder for partially applied arguments. + * + * @static + * @memberOf _ + * @category Function + * @param {Object} object The object the method belongs to. + * @param {string} key The key of the method. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * var object = { + * 'user': 'fred', + * 'greet': function(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * } + * }; + * + * var bound = _.bindKey(object, 'greet', 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * object.greet = function(greeting, punctuation) { + * return greeting + 'ya ' + this.user + punctuation; + * }; + * + * bound('!'); + * // => 'hiya fred!' + * + * // using placeholders + * var bound = _.bindKey(object, 'greet', _, '!'); + * bound('hi'); + * // => 'hiya fred!' + */ + var bindKey = restParam(function(object, key, partials) { + var bitmask = BIND_FLAG | BIND_KEY_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, bindKey.placeholder); + bitmask |= PARTIAL_FLAG; + } + return createWrapper(key, bitmask, object, partials, holders); + }); + + /** + * Creates a function that accepts one or more arguments of `func` that when + * called either invokes `func` returning its result, if all `func` arguments + * have been provided, or returns a function that accepts one or more of the + * remaining `func` arguments, and so on. The arity of `func` may be specified + * if `func.length` is not sufficient. + * + * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for provided arguments. + * + * **Note:** This method does not set the "length" property of curried functions. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to curry. + * @param {number} [arity=func.length] The arity of `func`. + * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. + * @returns {Function} Returns the new curried function. + * @example + * + * var abc = function(a, b, c) { + * return [a, b, c]; + * }; + * + * var curried = _.curry(abc); + * + * curried(1)(2)(3); + * // => [1, 2, 3] + * + * curried(1, 2)(3); + * // => [1, 2, 3] + * + * curried(1, 2, 3); + * // => [1, 2, 3] + * + * // using placeholders + * curried(1)(_, 3)(2); + * // => [1, 2, 3] + */ + var curry = createCurry(CURRY_FLAG); + + /** + * This method is like `_.curry` except that arguments are applied to `func` + * in the manner of `_.partialRight` instead of `_.partial`. + * + * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic + * builds, may be used as a placeholder for provided arguments. + * + * **Note:** This method does not set the "length" property of curried functions. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to curry. + * @param {number} [arity=func.length] The arity of `func`. + * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. + * @returns {Function} Returns the new curried function. + * @example + * + * var abc = function(a, b, c) { + * return [a, b, c]; + * }; + * + * var curried = _.curryRight(abc); + * + * curried(3)(2)(1); + * // => [1, 2, 3] + * + * curried(2, 3)(1); + * // => [1, 2, 3] + * + * curried(1, 2, 3); + * // => [1, 2, 3] + * + * // using placeholders + * curried(3)(1, _)(2); + * // => [1, 2, 3] + */ + var curryRight = createCurry(CURRY_RIGHT_FLAG); + + /** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. The debounced function comes with a `cancel` method to cancel + * delayed invocations. Provide an options object to indicate that `func` + * should be invoked on the leading and/or trailing edge of the `wait` timeout. + * Subsequent calls to the debounced function return the result of the last + * `func` invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is invoked + * on the trailing edge of the timeout only if the the debounced function is + * invoked more than once during the `wait` timeout. + * + * See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation) + * for details over the differences between `_.debounce` and `_.throttle`. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to debounce. + * @param {number} [wait=0] The number of milliseconds to delay. + * @param {Object} [options] The options object. + * @param {boolean} [options.leading=false] Specify invoking on the leading + * edge of the timeout. + * @param {number} [options.maxWait] The maximum time `func` is allowed to be + * delayed before it is invoked. + * @param {boolean} [options.trailing=true] Specify invoking on the trailing + * edge of the timeout. + * @returns {Function} Returns the new debounced function. + * @example + * + * // avoid costly calculations while the window size is in flux + * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); + * + * // invoke `sendMail` when the click event is fired, debouncing subsequent calls + * jQuery('#postbox').on('click', _.debounce(sendMail, 300, { + * 'leading': true, + * 'trailing': false + * })); + * + * // ensure `batchLog` is invoked once after 1 second of debounced calls + * var source = new EventSource('/stream'); + * jQuery(source).on('message', _.debounce(batchLog, 250, { + * 'maxWait': 1000 + * })); + * + * // cancel a debounced call + * var todoChanges = _.debounce(batchLog, 1000); + * Object.observe(models.todo, todoChanges); + * + * Object.observe(models, function(changes) { + * if (_.find(changes, { 'user': 'todo', 'type': 'delete'})) { + * todoChanges.cancel(); + * } + * }, ['delete']); + * + * // ...at some point `models.todo` is changed + * models.todo.completed = true; + * + * // ...before 1 second has passed `models.todo` is deleted + * // which cancels the debounced `todoChanges` call + * delete models.todo; + */ + function debounce(func, wait, options) { + var args, + maxTimeoutId, + result, + stamp, + thisArg, + timeoutId, + trailingCall, + lastCalled = 0, + maxWait = false, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + wait = wait < 0 ? 0 : (+wait || 0); + if (options === true) { + var leading = true; + trailing = false; + } else if (isObject(options)) { + leading = !!options.leading; + maxWait = 'maxWait' in options && nativeMax(+options.maxWait || 0, wait); + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + + function cancel() { + if (timeoutId) { + clearTimeout(timeoutId); + } + if (maxTimeoutId) { + clearTimeout(maxTimeoutId); + } + lastCalled = 0; + maxTimeoutId = timeoutId = trailingCall = undefined; + } + + function complete(isCalled, id) { + if (id) { + clearTimeout(id); + } + maxTimeoutId = timeoutId = trailingCall = undefined; + if (isCalled) { + lastCalled = now(); + result = func.apply(thisArg, args); + if (!timeoutId && !maxTimeoutId) { + args = thisArg = undefined; + } + } + } + + function delayed() { + var remaining = wait - (now() - stamp); + if (remaining <= 0 || remaining > wait) { + complete(trailingCall, maxTimeoutId); + } else { + timeoutId = setTimeout(delayed, remaining); + } + } + + function maxDelayed() { + complete(trailing, timeoutId); + } + + function debounced() { + args = arguments; + stamp = now(); + thisArg = this; + trailingCall = trailing && (timeoutId || !leading); + + if (maxWait === false) { + var leadingCall = leading && !timeoutId; + } else { + if (!maxTimeoutId && !leading) { + lastCalled = stamp; + } + var remaining = maxWait - (stamp - lastCalled), + isCalled = remaining <= 0 || remaining > maxWait; + + if (isCalled) { + if (maxTimeoutId) { + maxTimeoutId = clearTimeout(maxTimeoutId); + } + lastCalled = stamp; + result = func.apply(thisArg, args); + } + else if (!maxTimeoutId) { + maxTimeoutId = setTimeout(maxDelayed, remaining); + } + } + if (isCalled && timeoutId) { + timeoutId = clearTimeout(timeoutId); + } + else if (!timeoutId && wait !== maxWait) { + timeoutId = setTimeout(delayed, wait); + } + if (leadingCall) { + isCalled = true; + result = func.apply(thisArg, args); + } + if (isCalled && !timeoutId && !maxTimeoutId) { + args = thisArg = undefined; + } + return result; + } + debounced.cancel = cancel; + return debounced; + } + + /** + * Defers invoking the `func` until the current call stack has cleared. Any + * additional arguments are provided to `func` when it is invoked. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to defer. + * @param {...*} [args] The arguments to invoke the function with. + * @returns {number} Returns the timer id. + * @example + * + * _.defer(function(text) { + * console.log(text); + * }, 'deferred'); + * // logs 'deferred' after one or more milliseconds + */ + var defer = restParam(function(func, args) { + return baseDelay(func, 1, args); + }); + + /** + * Invokes `func` after `wait` milliseconds. Any additional arguments are + * provided to `func` when it is invoked. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {...*} [args] The arguments to invoke the function with. + * @returns {number} Returns the timer id. + * @example + * + * _.delay(function(text) { + * console.log(text); + * }, 1000, 'later'); + * // => logs 'later' after one second + */ + var delay = restParam(function(func, wait, args) { + return baseDelay(func, wait, args); + }); + + /** + * Creates a function that returns the result of invoking the provided + * functions with the `this` binding of the created function, where each + * successive invocation is supplied the return value of the previous. + * + * @static + * @memberOf _ + * @category Function + * @param {...Function} [funcs] Functions to invoke. + * @returns {Function} Returns the new function. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var addSquare = _.flow(_.add, square); + * addSquare(1, 2); + * // => 9 + */ + var flow = createFlow(); + + /** + * This method is like `_.flow` except that it creates a function that + * invokes the provided functions from right to left. + * + * @static + * @memberOf _ + * @alias backflow, compose + * @category Function + * @param {...Function} [funcs] Functions to invoke. + * @returns {Function} Returns the new function. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var addSquare = _.flowRight(square, _.add); + * addSquare(1, 2); + * // => 9 + */ + var flowRight = createFlow(true); + + /** + * Creates a function that memoizes the result of `func`. If `resolver` is + * provided it determines the cache key for storing the result based on the + * arguments provided to the memoized function. By default, the first argument + * provided to the memoized function is coerced to a string and used as the + * cache key. The `func` is invoked with the `this` binding of the memoized + * function. + * + * **Note:** The cache is exposed as the `cache` property on the memoized + * function. Its creation may be customized by replacing the `_.memoize.Cache` + * constructor with one whose instances implement the [`Map`](http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-map-prototype-object) + * method interface of `get`, `has`, and `set`. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to have its output memoized. + * @param {Function} [resolver] The function to resolve the cache key. + * @returns {Function} Returns the new memoizing function. + * @example + * + * var upperCase = _.memoize(function(string) { + * return string.toUpperCase(); + * }); + * + * upperCase('fred'); + * // => 'FRED' + * + * // modifying the result cache + * upperCase.cache.set('fred', 'BARNEY'); + * upperCase('fred'); + * // => 'BARNEY' + * + * // replacing `_.memoize.Cache` + * var object = { 'user': 'fred' }; + * var other = { 'user': 'barney' }; + * var identity = _.memoize(_.identity); + * + * identity(object); + * // => { 'user': 'fred' } + * identity(other); + * // => { 'user': 'fred' } + * + * _.memoize.Cache = WeakMap; + * var identity = _.memoize(_.identity); + * + * identity(object); + * // => { 'user': 'fred' } + * identity(other); + * // => { 'user': 'barney' } + */ + function memoize(func, resolver) { + if (typeof func != 'function' || (resolver && typeof resolver != 'function')) { + throw new TypeError(FUNC_ERROR_TEXT); + } + var memoized = function() { + var args = arguments, + key = resolver ? resolver.apply(this, args) : args[0], + cache = memoized.cache; + + if (cache.has(key)) { + return cache.get(key); + } + var result = func.apply(this, args); + memoized.cache = cache.set(key, result); + return result; + }; + memoized.cache = new memoize.Cache; + return memoized; + } + + /** + * Creates a function that runs each argument through a corresponding + * transform function. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to wrap. + * @param {...(Function|Function[])} [transforms] The functions to transform + * arguments, specified as individual functions or arrays of functions. + * @returns {Function} Returns the new function. + * @example + * + * function doubled(n) { + * return n * 2; + * } + * + * function square(n) { + * return n * n; + * } + * + * var modded = _.modArgs(function(x, y) { + * return [x, y]; + * }, square, doubled); + * + * modded(1, 2); + * // => [1, 4] + * + * modded(5, 10); + * // => [25, 20] + */ + var modArgs = restParam(function(func, transforms) { + transforms = baseFlatten(transforms); + if (typeof func != 'function' || !arrayEvery(transforms, baseIsFunction)) { + throw new TypeError(FUNC_ERROR_TEXT); + } + var length = transforms.length; + return restParam(function(args) { + var index = nativeMin(args.length, length); + while (index--) { + args[index] = transforms[index](args[index]); + } + return func.apply(this, args); + }); + }); + + /** + * Creates a function that negates the result of the predicate `func`. The + * `func` predicate is invoked with the `this` binding and arguments of the + * created function. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} predicate The predicate to negate. + * @returns {Function} Returns the new function. + * @example + * + * function isEven(n) { + * return n % 2 == 0; + * } + * + * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); + * // => [1, 3, 5] + */ + function negate(predicate) { + if (typeof predicate != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return function() { + return !predicate.apply(this, arguments); + }; + } + + /** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first call. The `func` is invoked + * with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // `initialize` invokes `createApplication` once + */ + function once(func) { + return before(2, func); + } + + /** + * Creates a function that invokes `func` with `partial` arguments prepended + * to those provided to the new function. This method is like `_.bind` except + * it does **not** alter the `this` binding. + * + * The `_.partial.placeholder` value, which defaults to `_` in monolithic + * builds, may be used as a placeholder for partially applied arguments. + * + * **Note:** This method does not set the "length" property of partially + * applied functions. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to partially apply arguments to. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new partially applied function. + * @example + * + * var greet = function(greeting, name) { + * return greeting + ' ' + name; + * }; + * + * var sayHelloTo = _.partial(greet, 'hello'); + * sayHelloTo('fred'); + * // => 'hello fred' + * + * // using placeholders + * var greetFred = _.partial(greet, _, 'fred'); + * greetFred('hi'); + * // => 'hi fred' + */ + var partial = createPartial(PARTIAL_FLAG); + + /** + * This method is like `_.partial` except that partially applied arguments + * are appended to those provided to the new function. + * + * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic + * builds, may be used as a placeholder for partially applied arguments. + * + * **Note:** This method does not set the "length" property of partially + * applied functions. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to partially apply arguments to. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new partially applied function. + * @example + * + * var greet = function(greeting, name) { + * return greeting + ' ' + name; + * }; + * + * var greetFred = _.partialRight(greet, 'fred'); + * greetFred('hi'); + * // => 'hi fred' + * + * // using placeholders + * var sayHelloTo = _.partialRight(greet, 'hello', _); + * sayHelloTo('fred'); + * // => 'hello fred' + */ + var partialRight = createPartial(PARTIAL_RIGHT_FLAG); + + /** + * Creates a function that invokes `func` with arguments arranged according + * to the specified indexes where the argument value at the first index is + * provided as the first argument, the argument value at the second index is + * provided as the second argument, and so on. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to rearrange arguments for. + * @param {...(number|number[])} indexes The arranged argument indexes, + * specified as individual indexes or arrays of indexes. + * @returns {Function} Returns the new function. + * @example + * + * var rearged = _.rearg(function(a, b, c) { + * return [a, b, c]; + * }, 2, 0, 1); + * + * rearged('b', 'c', 'a') + * // => ['a', 'b', 'c'] + * + * var map = _.rearg(_.map, [1, 0]); + * map(function(n) { + * return n * 3; + * }, [1, 2, 3]); + * // => [3, 6, 9] + */ + var rearg = restParam(function(func, indexes) { + return createWrapper(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes)); + }); + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as an array. + * + * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters). + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.restParam(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function restParam(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + rest = Array(length); + + while (++index < length) { + rest[index] = args[start + index]; + } + switch (start) { + case 0: return func.call(this, rest); + case 1: return func.call(this, args[0], rest); + case 2: return func.call(this, args[0], args[1], rest); + } + var otherArgs = Array(start + 1); + index = -1; + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = rest; + return func.apply(this, otherArgs); + }; + } + + /** + * Creates a function that invokes `func` with the `this` binding of the created + * function and an array of arguments much like [`Function#apply`](https://es5.github.io/#x15.3.4.3). + * + * **Note:** This method is based on the [spread operator](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator). + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to spread arguments over. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.spread(function(who, what) { + * return who + ' says ' + what; + * }); + * + * say(['fred', 'hello']); + * // => 'fred says hello' + * + * // with a Promise + * var numbers = Promise.all([ + * Promise.resolve(40), + * Promise.resolve(36) + * ]); + * + * numbers.then(_.spread(function(x, y) { + * return x + y; + * })); + * // => a Promise of 76 + */ + function spread(func) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return function(array) { + return func.apply(this, array); + }; + } + + /** + * Creates a throttled function that only invokes `func` at most once per + * every `wait` milliseconds. The throttled function comes with a `cancel` + * method to cancel delayed invocations. Provide an options object to indicate + * that `func` should be invoked on the leading and/or trailing edge of the + * `wait` timeout. Subsequent calls to the throttled function return the + * result of the last `func` call. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is invoked + * on the trailing edge of the timeout only if the the throttled function is + * invoked more than once during the `wait` timeout. + * + * See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation) + * for details over the differences between `_.throttle` and `_.debounce`. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to throttle. + * @param {number} [wait=0] The number of milliseconds to throttle invocations to. + * @param {Object} [options] The options object. + * @param {boolean} [options.leading=true] Specify invoking on the leading + * edge of the timeout. + * @param {boolean} [options.trailing=true] Specify invoking on the trailing + * edge of the timeout. + * @returns {Function} Returns the new throttled function. + * @example + * + * // avoid excessively updating the position while scrolling + * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); + * + * // invoke `renewToken` when the click event is fired, but not more than once every 5 minutes + * jQuery('.interactive').on('click', _.throttle(renewToken, 300000, { + * 'trailing': false + * })); + * + * // cancel a trailing throttled call + * jQuery(window).on('popstate', throttled.cancel); + */ + function throttle(func, wait, options) { + var leading = true, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + if (options === false) { + leading = false; + } else if (isObject(options)) { + leading = 'leading' in options ? !!options.leading : leading; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + return debounce(func, wait, { 'leading': leading, 'maxWait': +wait, 'trailing': trailing }); + } + + /** + * Creates a function that provides `value` to the wrapper function as its + * first argument. Any additional arguments provided to the function are + * appended to those provided to the wrapper function. The wrapper is invoked + * with the `this` binding of the created function. + * + * @static + * @memberOf _ + * @category Function + * @param {*} value The value to wrap. + * @param {Function} wrapper The wrapper function. + * @returns {Function} Returns the new function. + * @example + * + * var p = _.wrap(_.escape, function(func, text) { + * return '

' + func(text) + '

'; + * }); + * + * p('fred, barney, & pebbles'); + * // => '

fred, barney, & pebbles

' + */ + function wrap(value, wrapper) { + wrapper = wrapper == null ? identity : wrapper; + return createWrapper(wrapper, PARTIAL_FLAG, undefined, [value], []); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a clone of `value`. If `isDeep` is `true` nested objects are cloned, + * otherwise they are assigned by reference. If `customizer` is provided it is + * invoked to produce the cloned values. If `customizer` returns `undefined` + * cloning is handled by the method instead. The `customizer` is bound to + * `thisArg` and invoked with two argument; (value [, index|key, object]). + * + * **Note:** This method is loosely based on the + * [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm). + * The enumerable properties of `arguments` objects and objects created by + * constructors other than `Object` are cloned to plain `Object` objects. An + * empty object is returned for uncloneable values such as functions, DOM nodes, + * Maps, Sets, and WeakMaps. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @param {Function} [customizer] The function to customize cloning values. + * @param {*} [thisArg] The `this` binding of `customizer`. + * @returns {*} Returns the cloned value. + * @example + * + * var users = [ + * { 'user': 'barney' }, + * { 'user': 'fred' } + * ]; + * + * var shallow = _.clone(users); + * shallow[0] === users[0]; + * // => true + * + * var deep = _.clone(users, true); + * deep[0] === users[0]; + * // => false + * + * // using a customizer callback + * var el = _.clone(document.body, function(value) { + * if (_.isElement(value)) { + * return value.cloneNode(false); + * } + * }); + * + * el === document.body + * // => false + * el.nodeName + * // => BODY + * el.childNodes.length; + * // => 0 + */ + function clone(value, isDeep, customizer, thisArg) { + if (isDeep && typeof isDeep != 'boolean' && isIterateeCall(value, isDeep, customizer)) { + isDeep = false; + } + else if (typeof isDeep == 'function') { + thisArg = customizer; + customizer = isDeep; + isDeep = false; + } + return typeof customizer == 'function' + ? baseClone(value, isDeep, bindCallback(customizer, thisArg, 1)) + : baseClone(value, isDeep); + } + + /** + * Creates a deep clone of `value`. If `customizer` is provided it is invoked + * to produce the cloned values. If `customizer` returns `undefined` cloning + * is handled by the method instead. The `customizer` is bound to `thisArg` + * and invoked with two argument; (value [, index|key, object]). + * + * **Note:** This method is loosely based on the + * [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm). + * The enumerable properties of `arguments` objects and objects created by + * constructors other than `Object` are cloned to plain `Object` objects. An + * empty object is returned for uncloneable values such as functions, DOM nodes, + * Maps, Sets, and WeakMaps. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to deep clone. + * @param {Function} [customizer] The function to customize cloning values. + * @param {*} [thisArg] The `this` binding of `customizer`. + * @returns {*} Returns the deep cloned value. + * @example + * + * var users = [ + * { 'user': 'barney' }, + * { 'user': 'fred' } + * ]; + * + * var deep = _.cloneDeep(users); + * deep[0] === users[0]; + * // => false + * + * // using a customizer callback + * var el = _.cloneDeep(document.body, function(value) { + * if (_.isElement(value)) { + * return value.cloneNode(true); + * } + * }); + * + * el === document.body + * // => false + * el.nodeName + * // => BODY + * el.childNodes.length; + * // => 20 + */ + function cloneDeep(value, customizer, thisArg) { + return typeof customizer == 'function' + ? baseClone(value, true, bindCallback(customizer, thisArg, 1)) + : baseClone(value, true); + } + + /** + * Checks if `value` is greater than `other`. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than `other`, else `false`. + * @example + * + * _.gt(3, 1); + * // => true + * + * _.gt(3, 3); + * // => false + * + * _.gt(1, 3); + * // => false + */ + function gt(value, other) { + return value > other; + } + + /** + * Checks if `value` is greater than or equal to `other`. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than or equal to `other`, else `false`. + * @example + * + * _.gte(3, 1); + * // => true + * + * _.gte(3, 3); + * // => true + * + * _.gte(1, 3); + * // => false + */ + function gte(value, other) { + return value >= other; + } + + /** + * Checks if `value` is classified as an `arguments` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + function isArguments(value) { + return isObjectLike(value) && isArrayLike(value) && + hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee'); + } + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(function() { return arguments; }()); + * // => false + */ + var isArray = nativeIsArray || function(value) { + return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag; + }; + + /** + * Checks if `value` is classified as a boolean primitive or object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isBoolean(false); + * // => true + * + * _.isBoolean(null); + * // => false + */ + function isBoolean(value) { + return value === true || value === false || (isObjectLike(value) && objToString.call(value) == boolTag); + } + + /** + * Checks if `value` is classified as a `Date` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isDate(new Date); + * // => true + * + * _.isDate('Mon April 23 2012'); + * // => false + */ + function isDate(value) { + return isObjectLike(value) && objToString.call(value) == dateTag; + } + + /** + * Checks if `value` is a DOM element. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`. + * @example + * + * _.isElement(document.body); + * // => true + * + * _.isElement(''); + * // => false + */ + function isElement(value) { + return !!value && value.nodeType === 1 && isObjectLike(value) && !isPlainObject(value); + } + + /** + * Checks if `value` is empty. A value is considered empty unless it is an + * `arguments` object, array, string, or jQuery-like collection with a length + * greater than `0` or an object with own enumerable properties. + * + * @static + * @memberOf _ + * @category Lang + * @param {Array|Object|string} value The value to inspect. + * @returns {boolean} Returns `true` if `value` is empty, else `false`. + * @example + * + * _.isEmpty(null); + * // => true + * + * _.isEmpty(true); + * // => true + * + * _.isEmpty(1); + * // => true + * + * _.isEmpty([1, 2, 3]); + * // => false + * + * _.isEmpty({ 'a': 1 }); + * // => false + */ + function isEmpty(value) { + if (value == null) { + return true; + } + if (isArrayLike(value) && (isArray(value) || isString(value) || isArguments(value) || + (isObjectLike(value) && isFunction(value.splice)))) { + return !value.length; + } + return !keys(value).length; + } + + /** + * Performs a deep comparison between two values to determine if they are + * equivalent. If `customizer` is provided it is invoked to compare values. + * If `customizer` returns `undefined` comparisons are handled by the method + * instead. The `customizer` is bound to `thisArg` and invoked with three + * arguments: (value, other [, index|key]). + * + * **Note:** This method supports comparing arrays, booleans, `Date` objects, + * numbers, `Object` objects, regexes, and strings. Objects are compared by + * their own, not inherited, enumerable properties. Functions and DOM nodes + * are **not** supported. Provide a customizer function to extend support + * for comparing other values. + * + * @static + * @memberOf _ + * @alias eq + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {Function} [customizer] The function to customize value comparisons. + * @param {*} [thisArg] The `this` binding of `customizer`. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'user': 'fred' }; + * var other = { 'user': 'fred' }; + * + * object == other; + * // => false + * + * _.isEqual(object, other); + * // => true + * + * // using a customizer callback + * var array = ['hello', 'goodbye']; + * var other = ['hi', 'goodbye']; + * + * _.isEqual(array, other, function(value, other) { + * if (_.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/)) { + * return true; + * } + * }); + * // => true + */ + function isEqual(value, other, customizer, thisArg) { + customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined; + var result = customizer ? customizer(value, other) : undefined; + return result === undefined ? baseIsEqual(value, other, customizer) : !!result; + } + + /** + * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`, + * `SyntaxError`, `TypeError`, or `URIError` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an error object, else `false`. + * @example + * + * _.isError(new Error); + * // => true + * + * _.isError(Error); + * // => false + */ + function isError(value) { + return isObjectLike(value) && typeof value.message == 'string' && objToString.call(value) == errorTag; + } + + /** + * Checks if `value` is a finite primitive number. + * + * **Note:** This method is based on [`Number.isFinite`](http://ecma-international.org/ecma-262/6.0/#sec-number.isfinite). + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. + * @example + * + * _.isFinite(10); + * // => true + * + * _.isFinite('10'); + * // => false + * + * _.isFinite(true); + * // => false + * + * _.isFinite(Object(10)); + * // => false + * + * _.isFinite(Infinity); + * // => false + */ + function isFinite(value) { + return typeof value == 'number' && nativeIsFinite(value); + } + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + // The use of `Object#toString` avoids issues with the `typeof` operator + // in older versions of Chrome and Safari which return 'function' for regexes + // and Safari 8 equivalents which return 'object' for typed array constructors. + return isObject(value) && objToString.call(value) == funcTag; + } + + /** + * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`. + * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(1); + * // => false + */ + function isObject(value) { + // Avoid a V8 JIT bug in Chrome 19-20. + // See https://code.google.com/p/v8/issues/detail?id=2291 for more details. + var type = typeof value; + return !!value && (type == 'object' || type == 'function'); + } + + /** + * Performs a deep comparison between `object` and `source` to determine if + * `object` contains equivalent property values. If `customizer` is provided + * it is invoked to compare values. If `customizer` returns `undefined` + * comparisons are handled by the method instead. The `customizer` is bound + * to `thisArg` and invoked with three arguments: (value, other, index|key). + * + * **Note:** This method supports comparing properties of arrays, booleans, + * `Date` objects, numbers, `Object` objects, regexes, and strings. Functions + * and DOM nodes are **not** supported. Provide a customizer function to extend + * support for comparing other values. + * + * @static + * @memberOf _ + * @category Lang + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @param {Function} [customizer] The function to customize value comparisons. + * @param {*} [thisArg] The `this` binding of `customizer`. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + * @example + * + * var object = { 'user': 'fred', 'age': 40 }; + * + * _.isMatch(object, { 'age': 40 }); + * // => true + * + * _.isMatch(object, { 'age': 36 }); + * // => false + * + * // using a customizer callback + * var object = { 'greeting': 'hello' }; + * var source = { 'greeting': 'hi' }; + * + * _.isMatch(object, source, function(value, other) { + * return _.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/) || undefined; + * }); + * // => true + */ + function isMatch(object, source, customizer, thisArg) { + customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined; + return baseIsMatch(object, getMatchData(source), customizer); + } + + /** + * Checks if `value` is `NaN`. + * + * **Note:** This method is not the same as [`isNaN`](https://es5.github.io/#x15.1.2.4) + * which returns `true` for `undefined` and other non-numeric values. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + * @example + * + * _.isNaN(NaN); + * // => true + * + * _.isNaN(new Number(NaN)); + * // => true + * + * isNaN(undefined); + * // => true + * + * _.isNaN(undefined); + * // => false + */ + function isNaN(value) { + // An `NaN` primitive is the only value that is not equal to itself. + // Perform the `toStringTag` check first to avoid errors with some host objects in IE. + return isNumber(value) && value != +value; + } + + /** + * Checks if `value` is a native function. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, else `false`. + * @example + * + * _.isNative(Array.prototype.push); + * // => true + * + * _.isNative(_); + * // => false + */ + function isNative(value) { + if (value == null) { + return false; + } + if (isFunction(value)) { + return reIsNative.test(fnToString.call(value)); + } + return isObjectLike(value) && reIsHostCtor.test(value); + } + + /** + * Checks if `value` is `null`. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `null`, else `false`. + * @example + * + * _.isNull(null); + * // => true + * + * _.isNull(void 0); + * // => false + */ + function isNull(value) { + return value === null; + } + + /** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are classified + * as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isNumber(8.4); + * // => true + * + * _.isNumber(NaN); + * // => true + * + * _.isNumber('8.4'); + * // => false + */ + function isNumber(value) { + return typeof value == 'number' || (isObjectLike(value) && objToString.call(value) == numberTag); + } + + /** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * **Note:** This method assumes objects created by the `Object` constructor + * have no inherited enumerable properties. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ + function isPlainObject(value) { + var Ctor; + + // Exit early for non `Object` objects. + if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) || + (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) { + return false; + } + // IE < 9 iterates inherited properties before own properties. If the first + // iterated property is an object's own property then there are no inherited + // enumerable properties. + var result; + // In most environments an object's own properties are iterated before + // its inherited properties. If the last iterated property is an object's + // own property then there are no inherited enumerable properties. + baseForIn(value, function(subValue, key) { + result = key; + }); + return result === undefined || hasOwnProperty.call(value, result); + } + + /** + * Checks if `value` is classified as a `RegExp` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isRegExp(/abc/); + * // => true + * + * _.isRegExp('/abc/'); + * // => false + */ + function isRegExp(value) { + return isObject(value) && objToString.call(value) == regexpTag; + } + + /** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ + function isString(value) { + return typeof value == 'string' || (isObjectLike(value) && objToString.call(value) == stringTag); + } + + /** + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + function isTypedArray(value) { + return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)]; + } + + /** + * Checks if `value` is `undefined`. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. + * @example + * + * _.isUndefined(void 0); + * // => true + * + * _.isUndefined(null); + * // => false + */ + function isUndefined(value) { + return value === undefined; + } + + /** + * Checks if `value` is less than `other`. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than `other`, else `false`. + * @example + * + * _.lt(1, 3); + * // => true + * + * _.lt(3, 3); + * // => false + * + * _.lt(3, 1); + * // => false + */ + function lt(value, other) { + return value < other; + } + + /** + * Checks if `value` is less than or equal to `other`. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than or equal to `other`, else `false`. + * @example + * + * _.lte(1, 3); + * // => true + * + * _.lte(3, 3); + * // => true + * + * _.lte(3, 1); + * // => false + */ + function lte(value, other) { + return value <= other; + } + + /** + * Converts `value` to an array. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Array} Returns the converted array. + * @example + * + * (function() { + * return _.toArray(arguments).slice(1); + * }(1, 2, 3)); + * // => [2, 3] + */ + function toArray(value) { + var length = value ? getLength(value) : 0; + if (!isLength(length)) { + return values(value); + } + if (!length) { + return []; + } + return arrayCopy(value); + } + + /** + * Converts `value` to a plain object flattening inherited enumerable + * properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return baseCopy(value, keysIn(value)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Recursively merges own enumerable properties of the source object(s), that + * don't resolve to `undefined` into the destination object. Subsequent sources + * overwrite property assignments of previous sources. If `customizer` is + * provided it is invoked to produce the merged values of the destination and + * source properties. If `customizer` returns `undefined` merging is handled + * by the method instead. The `customizer` is bound to `thisArg` and invoked + * with five arguments: (objectValue, sourceValue, key, object, source). + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @param {Function} [customizer] The function to customize assigned values. + * @param {*} [thisArg] The `this` binding of `customizer`. + * @returns {Object} Returns `object`. + * @example + * + * var users = { + * 'data': [{ 'user': 'barney' }, { 'user': 'fred' }] + * }; + * + * var ages = { + * 'data': [{ 'age': 36 }, { 'age': 40 }] + * }; + * + * _.merge(users, ages); + * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] } + * + * // using a customizer callback + * var object = { + * 'fruits': ['apple'], + * 'vegetables': ['beet'] + * }; + * + * var other = { + * 'fruits': ['banana'], + * 'vegetables': ['carrot'] + * }; + * + * _.merge(object, other, function(a, b) { + * if (_.isArray(a)) { + * return a.concat(b); + * } + * }); + * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] } + */ + var merge = createAssigner(baseMerge); + + /** + * Assigns own enumerable properties of source object(s) to the destination + * object. Subsequent sources overwrite property assignments of previous sources. + * If `customizer` is provided it is invoked to produce the assigned values. + * The `customizer` is bound to `thisArg` and invoked with five arguments: + * (objectValue, sourceValue, key, object, source). + * + * **Note:** This method mutates `object` and is based on + * [`Object.assign`](http://ecma-international.org/ecma-262/6.0/#sec-object.assign). + * + * @static + * @memberOf _ + * @alias extend + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @param {Function} [customizer] The function to customize assigned values. + * @param {*} [thisArg] The `this` binding of `customizer`. + * @returns {Object} Returns `object`. + * @example + * + * _.assign({ 'user': 'barney' }, { 'age': 40 }, { 'user': 'fred' }); + * // => { 'user': 'fred', 'age': 40 } + * + * // using a customizer callback + * var defaults = _.partialRight(_.assign, function(value, other) { + * return _.isUndefined(value) ? other : value; + * }); + * + * defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' }); + * // => { 'user': 'barney', 'age': 36 } + */ + var assign = createAssigner(function(object, source, customizer) { + return customizer + ? assignWith(object, source, customizer) + : baseAssign(object, source); + }); + + /** + * Creates an object that inherits from the given `prototype` object. If a + * `properties` object is provided its own enumerable properties are assigned + * to the created object. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} prototype The object to inherit from. + * @param {Object} [properties] The properties to assign to the object. + * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. + * @returns {Object} Returns the new object. + * @example + * + * function Shape() { + * this.x = 0; + * this.y = 0; + * } + * + * function Circle() { + * Shape.call(this); + * } + * + * Circle.prototype = _.create(Shape.prototype, { + * 'constructor': Circle + * }); + * + * var circle = new Circle; + * circle instanceof Circle; + * // => true + * + * circle instanceof Shape; + * // => true + */ + function create(prototype, properties, guard) { + var result = baseCreate(prototype); + if (guard && isIterateeCall(prototype, properties, guard)) { + properties = undefined; + } + return properties ? baseAssign(result, properties) : result; + } + + /** + * Assigns own enumerable properties of source object(s) to the destination + * object for all destination properties that resolve to `undefined`. Once a + * property is set, additional values of the same property are ignored. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @example + * + * _.defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' }); + * // => { 'user': 'barney', 'age': 36 } + */ + var defaults = createDefaults(assign, assignDefaults); + + /** + * This method is like `_.defaults` except that it recursively assigns + * default properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @example + * + * _.defaultsDeep({ 'user': { 'name': 'barney' } }, { 'user': { 'name': 'fred', 'age': 36 } }); + * // => { 'user': { 'name': 'barney', 'age': 36 } } + * + */ + var defaultsDeep = createDefaults(merge, mergeDefaults); + + /** + * This method is like `_.find` except that it returns the key of the first + * element `predicate` returns truthy for instead of the element itself. + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to search. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {string|undefined} Returns the key of the matched element, else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findKey(users, function(chr) { + * return chr.age < 40; + * }); + * // => 'barney' (iteration order is not guaranteed) + * + * // using the `_.matches` callback shorthand + * _.findKey(users, { 'age': 1, 'active': true }); + * // => 'pebbles' + * + * // using the `_.matchesProperty` callback shorthand + * _.findKey(users, 'active', false); + * // => 'fred' + * + * // using the `_.property` callback shorthand + * _.findKey(users, 'active'); + * // => 'barney' + */ + var findKey = createFindKey(baseForOwn); + + /** + * This method is like `_.findKey` except that it iterates over elements of + * a collection in the opposite order. + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to search. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {string|undefined} Returns the key of the matched element, else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findLastKey(users, function(chr) { + * return chr.age < 40; + * }); + * // => returns `pebbles` assuming `_.findKey` returns `barney` + * + * // using the `_.matches` callback shorthand + * _.findLastKey(users, { 'age': 36, 'active': true }); + * // => 'barney' + * + * // using the `_.matchesProperty` callback shorthand + * _.findLastKey(users, 'active', false); + * // => 'fred' + * + * // using the `_.property` callback shorthand + * _.findLastKey(users, 'active'); + * // => 'pebbles' + */ + var findLastKey = createFindKey(baseForOwnRight); + + /** + * Iterates over own and inherited enumerable properties of an object invoking + * `iteratee` for each property. The `iteratee` is bound to `thisArg` and invoked + * with three arguments: (value, key, object). Iteratee functions may exit + * iteration early by explicitly returning `false`. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Object} Returns `object`. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.forIn(new Foo, function(value, key) { + * console.log(key); + * }); + * // => logs 'a', 'b', and 'c' (iteration order is not guaranteed) + */ + var forIn = createForIn(baseFor); + + /** + * This method is like `_.forIn` except that it iterates over properties of + * `object` in the opposite order. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Object} Returns `object`. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.forInRight(new Foo, function(value, key) { + * console.log(key); + * }); + * // => logs 'c', 'b', and 'a' assuming `_.forIn ` logs 'a', 'b', and 'c' + */ + var forInRight = createForIn(baseForRight); + + /** + * Iterates over own enumerable properties of an object invoking `iteratee` + * for each property. The `iteratee` is bound to `thisArg` and invoked with + * three arguments: (value, key, object). Iteratee functions may exit iteration + * early by explicitly returning `false`. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Object} Returns `object`. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.forOwn(new Foo, function(value, key) { + * console.log(key); + * }); + * // => logs 'a' and 'b' (iteration order is not guaranteed) + */ + var forOwn = createForOwn(baseForOwn); + + /** + * This method is like `_.forOwn` except that it iterates over properties of + * `object` in the opposite order. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Object} Returns `object`. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.forOwnRight(new Foo, function(value, key) { + * console.log(key); + * }); + * // => logs 'b' and 'a' assuming `_.forOwn` logs 'a' and 'b' + */ + var forOwnRight = createForOwn(baseForOwnRight); + + /** + * Creates an array of function property names from all enumerable properties, + * own and inherited, of `object`. + * + * @static + * @memberOf _ + * @alias methods + * @category Object + * @param {Object} object The object to inspect. + * @returns {Array} Returns the new array of property names. + * @example + * + * _.functions(_); + * // => ['after', 'ary', 'assign', ...] + */ + function functions(object) { + return baseFunctions(object, keysIn(object)); + } + + /** + * Gets the property value at `path` of `object`. If the resolved value is + * `undefined` the `defaultValue` is used in its place. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @param {*} [defaultValue] The value returned if the resolved value is `undefined`. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.get(object, 'a[0].b.c'); + * // => 3 + * + * _.get(object, ['a', '0', 'b', 'c']); + * // => 3 + * + * _.get(object, 'a.b.c', 'default'); + * // => 'default' + */ + function get(object, path, defaultValue) { + var result = object == null ? undefined : baseGet(object, toPath(path), path + ''); + return result === undefined ? defaultValue : result; + } + + /** + * Checks if `path` is a direct property. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` is a direct property, else `false`. + * @example + * + * var object = { 'a': { 'b': { 'c': 3 } } }; + * + * _.has(object, 'a'); + * // => true + * + * _.has(object, 'a.b.c'); + * // => true + * + * _.has(object, ['a', 'b', 'c']); + * // => true + */ + function has(object, path) { + if (object == null) { + return false; + } + var result = hasOwnProperty.call(object, path); + if (!result && !isKey(path)) { + path = toPath(path); + object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1)); + if (object == null) { + return false; + } + path = last(path); + result = hasOwnProperty.call(object, path); + } + return result || (isLength(object.length) && isIndex(path, object.length) && + (isArray(object) || isArguments(object))); + } + + /** + * Creates an object composed of the inverted keys and values of `object`. + * If `object` contains duplicate values, subsequent values overwrite property + * assignments of previous values unless `multiValue` is `true`. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to invert. + * @param {boolean} [multiValue] Allow multiple values per key. + * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invert(object); + * // => { '1': 'c', '2': 'b' } + * + * // with `multiValue` + * _.invert(object, true); + * // => { '1': ['a', 'c'], '2': ['b'] } + */ + function invert(object, multiValue, guard) { + if (guard && isIterateeCall(object, multiValue, guard)) { + multiValue = undefined; + } + var index = -1, + props = keys(object), + length = props.length, + result = {}; + + while (++index < length) { + var key = props[index], + value = object[key]; + + if (multiValue) { + if (hasOwnProperty.call(result, value)) { + result[value].push(key); + } else { + result[value] = [key]; + } + } + else { + result[value] = key; + } + } + return result; + } + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys) + * for more details. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + var keys = !nativeKeys ? shimKeys : function(object) { + var Ctor = object == null ? undefined : object.constructor; + if ((typeof Ctor == 'function' && Ctor.prototype === object) || + (typeof object != 'function' && isArrayLike(object))) { + return shimKeys(object); + } + return isObject(object) ? nativeKeys(object) : []; + }; + + /** + * Creates an array of the own and inherited enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keysIn(new Foo); + * // => ['a', 'b', 'c'] (iteration order is not guaranteed) + */ + function keysIn(object) { + if (object == null) { + return []; + } + if (!isObject(object)) { + object = Object(object); + } + var length = object.length; + length = (length && isLength(length) && + (isArray(object) || isArguments(object)) && length) || 0; + + var Ctor = object.constructor, + index = -1, + isProto = typeof Ctor == 'function' && Ctor.prototype === object, + result = Array(length), + skipIndexes = length > 0; + + while (++index < length) { + result[index] = (index + ''); + } + for (var key in object) { + if (!(skipIndexes && isIndex(key, length)) && + !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { + result.push(key); + } + } + return result; + } + + /** + * The opposite of `_.mapValues`; this method creates an object with the + * same values as `object` and keys generated by running each own enumerable + * property of `object` through `iteratee`. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function|Object|string} [iteratee=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Object} Returns the new mapped object. + * @example + * + * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) { + * return key + value; + * }); + * // => { 'a1': 1, 'b2': 2 } + */ + var mapKeys = createObjectMapper(true); + + /** + * Creates an object with the same keys as `object` and values generated by + * running each own enumerable property of `object` through `iteratee`. The + * iteratee function is bound to `thisArg` and invoked with three arguments: + * (value, key, object). + * + * If a property name is provided for `iteratee` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `iteratee` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function|Object|string} [iteratee=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Object} Returns the new mapped object. + * @example + * + * _.mapValues({ 'a': 1, 'b': 2 }, function(n) { + * return n * 3; + * }); + * // => { 'a': 3, 'b': 6 } + * + * var users = { + * 'fred': { 'user': 'fred', 'age': 40 }, + * 'pebbles': { 'user': 'pebbles', 'age': 1 } + * }; + * + * // using the `_.property` callback shorthand + * _.mapValues(users, 'age'); + * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) + */ + var mapValues = createObjectMapper(); + + /** + * The opposite of `_.pick`; this method creates an object composed of the + * own and inherited enumerable properties of `object` that are not omitted. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {Function|...(string|string[])} [predicate] The function invoked per + * iteration or property names to omit, specified as individual property + * names or arrays of property names. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'user': 'fred', 'age': 40 }; + * + * _.omit(object, 'age'); + * // => { 'user': 'fred' } + * + * _.omit(object, _.isNumber); + * // => { 'user': 'fred' } + */ + var omit = restParam(function(object, props) { + if (object == null) { + return {}; + } + if (typeof props[0] != 'function') { + var props = arrayMap(baseFlatten(props), String); + return pickByArray(object, baseDifference(keysIn(object), props)); + } + var predicate = bindCallback(props[0], props[1], 3); + return pickByCallback(object, function(value, key, object) { + return !predicate(value, key, object); + }); + }); + + /** + * Creates a two dimensional array of the key-value pairs for `object`, + * e.g. `[[key1, value1], [key2, value2]]`. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the new array of key-value pairs. + * @example + * + * _.pairs({ 'barney': 36, 'fred': 40 }); + * // => [['barney', 36], ['fred', 40]] (iteration order is not guaranteed) + */ + function pairs(object) { + object = toObject(object); + + var index = -1, + props = keys(object), + length = props.length, + result = Array(length); + + while (++index < length) { + var key = props[index]; + result[index] = [key, object[key]]; + } + return result; + } + + /** + * Creates an object composed of the picked `object` properties. Property + * names may be specified as individual arguments or as arrays of property + * names. If `predicate` is provided it is invoked for each property of `object` + * picking the properties `predicate` returns truthy for. The predicate is + * bound to `thisArg` and invoked with three arguments: (value, key, object). + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {Function|...(string|string[])} [predicate] The function invoked per + * iteration or property names to pick, specified as individual property + * names or arrays of property names. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'user': 'fred', 'age': 40 }; + * + * _.pick(object, 'user'); + * // => { 'user': 'fred' } + * + * _.pick(object, _.isString); + * // => { 'user': 'fred' } + */ + var pick = restParam(function(object, props) { + if (object == null) { + return {}; + } + return typeof props[0] == 'function' + ? pickByCallback(object, bindCallback(props[0], props[1], 3)) + : pickByArray(object, baseFlatten(props)); + }); + + /** + * This method is like `_.get` except that if the resolved value is a function + * it is invoked with the `this` binding of its parent object and its result + * is returned. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to resolve. + * @param {*} [defaultValue] The value returned if the resolved value is `undefined`. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; + * + * _.result(object, 'a[0].b.c1'); + * // => 3 + * + * _.result(object, 'a[0].b.c2'); + * // => 4 + * + * _.result(object, 'a.b.c', 'default'); + * // => 'default' + * + * _.result(object, 'a.b.c', _.constant('default')); + * // => 'default' + */ + function result(object, path, defaultValue) { + var result = object == null ? undefined : object[path]; + if (result === undefined) { + if (object != null && !isKey(path, object)) { + path = toPath(path); + object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1)); + result = object == null ? undefined : object[last(path)]; + } + result = result === undefined ? defaultValue : result; + } + return isFunction(result) ? result.call(object) : result; + } + + /** + * Sets the property value of `path` on `object`. If a portion of `path` + * does not exist it is created. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to augment. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @returns {Object} Returns `object`. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.set(object, 'a[0].b.c', 4); + * console.log(object.a[0].b.c); + * // => 4 + * + * _.set(object, 'x[0].y.z', 5); + * console.log(object.x[0].y.z); + * // => 5 + */ + function set(object, path, value) { + if (object == null) { + return object; + } + var pathKey = (path + ''); + path = (object[pathKey] != null || isKey(path, object)) ? [pathKey] : toPath(path); + + var index = -1, + length = path.length, + lastIndex = length - 1, + nested = object; + + while (nested != null && ++index < length) { + var key = path[index]; + if (isObject(nested)) { + if (index == lastIndex) { + nested[key] = value; + } else if (nested[key] == null) { + nested[key] = isIndex(path[index + 1]) ? [] : {}; + } + } + nested = nested[key]; + } + return object; + } + + /** + * An alternative to `_.reduce`; this method transforms `object` to a new + * `accumulator` object which is the result of running each of its own enumerable + * properties through `iteratee`, with each invocation potentially mutating + * the `accumulator` object. The `iteratee` is bound to `thisArg` and invoked + * with four arguments: (accumulator, value, key, object). Iteratee functions + * may exit iteration early by explicitly returning `false`. + * + * @static + * @memberOf _ + * @category Object + * @param {Array|Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The custom accumulator value. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {*} Returns the accumulated value. + * @example + * + * _.transform([2, 3, 4], function(result, n) { + * result.push(n *= n); + * return n % 2 == 0; + * }); + * // => [4, 9] + * + * _.transform({ 'a': 1, 'b': 2 }, function(result, n, key) { + * result[key] = n * 3; + * }); + * // => { 'a': 3, 'b': 6 } + */ + function transform(object, iteratee, accumulator, thisArg) { + var isArr = isArray(object) || isTypedArray(object); + iteratee = getCallback(iteratee, thisArg, 4); + + if (accumulator == null) { + if (isArr || isObject(object)) { + var Ctor = object.constructor; + if (isArr) { + accumulator = isArray(object) ? new Ctor : []; + } else { + accumulator = baseCreate(isFunction(Ctor) ? Ctor.prototype : undefined); + } + } else { + accumulator = {}; + } + } + (isArr ? arrayEach : baseForOwn)(object, function(value, index, object) { + return iteratee(accumulator, value, index, object); + }); + return accumulator; + } + + /** + * Creates an array of the own enumerable property values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.values(new Foo); + * // => [1, 2] (iteration order is not guaranteed) + * + * _.values('hi'); + * // => ['h', 'i'] + */ + function values(object) { + return baseValues(object, keys(object)); + } + + /** + * Creates an array of the own and inherited enumerable property values + * of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.valuesIn(new Foo); + * // => [1, 2, 3] (iteration order is not guaranteed) + */ + function valuesIn(object) { + return baseValues(object, keysIn(object)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Checks if `n` is between `start` and up to but not including, `end`. If + * `end` is not specified it is set to `start` with `start` then set to `0`. + * + * @static + * @memberOf _ + * @category Number + * @param {number} n The number to check. + * @param {number} [start=0] The start of the range. + * @param {number} end The end of the range. + * @returns {boolean} Returns `true` if `n` is in the range, else `false`. + * @example + * + * _.inRange(3, 2, 4); + * // => true + * + * _.inRange(4, 8); + * // => true + * + * _.inRange(4, 2); + * // => false + * + * _.inRange(2, 2); + * // => false + * + * _.inRange(1.2, 2); + * // => true + * + * _.inRange(5.2, 4); + * // => false + */ + function inRange(value, start, end) { + start = +start || 0; + if (end === undefined) { + end = start; + start = 0; + } else { + end = +end || 0; + } + return value >= nativeMin(start, end) && value < nativeMax(start, end); + } + + /** + * Produces a random number between `min` and `max` (inclusive). If only one + * argument is provided a number between `0` and the given number is returned. + * If `floating` is `true`, or either `min` or `max` are floats, a floating-point + * number is returned instead of an integer. + * + * @static + * @memberOf _ + * @category Number + * @param {number} [min=0] The minimum possible value. + * @param {number} [max=1] The maximum possible value. + * @param {boolean} [floating] Specify returning a floating-point number. + * @returns {number} Returns the random number. + * @example + * + * _.random(0, 5); + * // => an integer between 0 and 5 + * + * _.random(5); + * // => also an integer between 0 and 5 + * + * _.random(5, true); + * // => a floating-point number between 0 and 5 + * + * _.random(1.2, 5.2); + * // => a floating-point number between 1.2 and 5.2 + */ + function random(min, max, floating) { + if (floating && isIterateeCall(min, max, floating)) { + max = floating = undefined; + } + var noMin = min == null, + noMax = max == null; + + if (floating == null) { + if (noMax && typeof min == 'boolean') { + floating = min; + min = 1; + } + else if (typeof max == 'boolean') { + floating = max; + noMax = true; + } + } + if (noMin && noMax) { + max = 1; + noMax = false; + } + min = +min || 0; + if (noMax) { + max = min; + min = 0; + } else { + max = +max || 0; + } + if (floating || min % 1 || max % 1) { + var rand = nativeRandom(); + return nativeMin(min + (rand * (max - min + parseFloat('1e-' + ((rand + '').length - 1)))), max); + } + return baseRandom(min, max); + } + + /*------------------------------------------------------------------------*/ + + /** + * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase). + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the camel cased string. + * @example + * + * _.camelCase('Foo Bar'); + * // => 'fooBar' + * + * _.camelCase('--foo-bar'); + * // => 'fooBar' + * + * _.camelCase('__foo_bar__'); + * // => 'fooBar' + */ + var camelCase = createCompounder(function(result, word, index) { + word = word.toLowerCase(); + return result + (index ? (word.charAt(0).toUpperCase() + word.slice(1)) : word); + }); + + /** + * Capitalizes the first character of `string`. + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to capitalize. + * @returns {string} Returns the capitalized string. + * @example + * + * _.capitalize('fred'); + * // => 'Fred' + */ + function capitalize(string) { + string = baseToString(string); + return string && (string.charAt(0).toUpperCase() + string.slice(1)); + } + + /** + * Deburrs `string` by converting [latin-1 supplementary letters](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table) + * to basic latin letters and removing [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to deburr. + * @returns {string} Returns the deburred string. + * @example + * + * _.deburr('déjà vu'); + * // => 'deja vu' + */ + function deburr(string) { + string = baseToString(string); + return string && string.replace(reLatin1, deburrLetter).replace(reComboMark, ''); + } + + /** + * Checks if `string` ends with the given target string. + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to search. + * @param {string} [target] The string to search for. + * @param {number} [position=string.length] The position to search from. + * @returns {boolean} Returns `true` if `string` ends with `target`, else `false`. + * @example + * + * _.endsWith('abc', 'c'); + * // => true + * + * _.endsWith('abc', 'b'); + * // => false + * + * _.endsWith('abc', 'b', 2); + * // => true + */ + function endsWith(string, target, position) { + string = baseToString(string); + target = (target + ''); + + var length = string.length; + position = position === undefined + ? length + : nativeMin(position < 0 ? 0 : (+position || 0), length); + + position -= target.length; + return position >= 0 && string.indexOf(target, position) == position; + } + + /** + * Converts the characters "&", "<", ">", '"', "'", and "\`", in `string` to + * their corresponding HTML entities. + * + * **Note:** No other characters are escaped. To escape additional characters + * use a third-party library like [_he_](https://mths.be/he). + * + * Though the ">" character is escaped for symmetry, characters like + * ">" and "/" don't need escaping in HTML and have no special meaning + * unless they're part of a tag or unquoted attribute value. + * See [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) + * (under "semi-related fun fact") for more details. + * + * Backticks are escaped because in Internet Explorer < 9, they can break out + * of attribute values or HTML comments. See [#59](https://html5sec.org/#59), + * [#102](https://html5sec.org/#102), [#108](https://html5sec.org/#108), and + * [#133](https://html5sec.org/#133) of the [HTML5 Security Cheatsheet](https://html5sec.org/) + * for more details. + * + * When working with HTML you should always [quote attribute values](http://wonko.com/post/html-escaping) + * to reduce XSS vectors. + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escape('fred, barney, & pebbles'); + * // => 'fred, barney, & pebbles' + */ + function escape(string) { + // Reset `lastIndex` because in IE < 9 `String#replace` does not. + string = baseToString(string); + return (string && reHasUnescapedHtml.test(string)) + ? string.replace(reUnescapedHtml, escapeHtmlChar) + : string; + } + + /** + * Escapes the `RegExp` special characters "\", "/", "^", "$", ".", "|", "?", + * "*", "+", "(", ")", "[", "]", "{" and "}" in `string`. + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escapeRegExp('[lodash](https://lodash.com/)'); + * // => '\[lodash\]\(https:\/\/lodash\.com\/\)' + */ + function escapeRegExp(string) { + string = baseToString(string); + return (string && reHasRegExpChars.test(string)) + ? string.replace(reRegExpChars, escapeRegExpChar) + : (string || '(?:)'); + } + + /** + * Converts `string` to [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles). + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the kebab cased string. + * @example + * + * _.kebabCase('Foo Bar'); + * // => 'foo-bar' + * + * _.kebabCase('fooBar'); + * // => 'foo-bar' + * + * _.kebabCase('__foo_bar__'); + * // => 'foo-bar' + */ + var kebabCase = createCompounder(function(result, word, index) { + return result + (index ? '-' : '') + word.toLowerCase(); + }); + + /** + * Pads `string` on the left and right sides if it's shorter than `length`. + * Padding characters are truncated if they can't be evenly divided by `length`. + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to pad. + * @param {number} [length=0] The padding length. + * @param {string} [chars=' '] The string used as padding. + * @returns {string} Returns the padded string. + * @example + * + * _.pad('abc', 8); + * // => ' abc ' + * + * _.pad('abc', 8, '_-'); + * // => '_-abc_-_' + * + * _.pad('abc', 3); + * // => 'abc' + */ + function pad(string, length, chars) { + string = baseToString(string); + length = +length; + + var strLength = string.length; + if (strLength >= length || !nativeIsFinite(length)) { + return string; + } + var mid = (length - strLength) / 2, + leftLength = nativeFloor(mid), + rightLength = nativeCeil(mid); + + chars = createPadding('', rightLength, chars); + return chars.slice(0, leftLength) + string + chars; + } + + /** + * Pads `string` on the left side if it's shorter than `length`. Padding + * characters are truncated if they exceed `length`. + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to pad. + * @param {number} [length=0] The padding length. + * @param {string} [chars=' '] The string used as padding. + * @returns {string} Returns the padded string. + * @example + * + * _.padLeft('abc', 6); + * // => ' abc' + * + * _.padLeft('abc', 6, '_-'); + * // => '_-_abc' + * + * _.padLeft('abc', 3); + * // => 'abc' + */ + var padLeft = createPadDir(); + + /** + * Pads `string` on the right side if it's shorter than `length`. Padding + * characters are truncated if they exceed `length`. + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to pad. + * @param {number} [length=0] The padding length. + * @param {string} [chars=' '] The string used as padding. + * @returns {string} Returns the padded string. + * @example + * + * _.padRight('abc', 6); + * // => 'abc ' + * + * _.padRight('abc', 6, '_-'); + * // => 'abc_-_' + * + * _.padRight('abc', 3); + * // => 'abc' + */ + var padRight = createPadDir(true); + + /** + * Converts `string` to an integer of the specified radix. If `radix` is + * `undefined` or `0`, a `radix` of `10` is used unless `value` is a hexadecimal, + * in which case a `radix` of `16` is used. + * + * **Note:** This method aligns with the [ES5 implementation](https://es5.github.io/#E) + * of `parseInt`. + * + * @static + * @memberOf _ + * @category String + * @param {string} string The string to convert. + * @param {number} [radix] The radix to interpret `value` by. + * @param- {Object} [guard] Enables use as a callback for functions like `_.map`. + * @returns {number} Returns the converted integer. + * @example + * + * _.parseInt('08'); + * // => 8 + * + * _.map(['6', '08', '10'], _.parseInt); + * // => [6, 8, 10] + */ + function parseInt(string, radix, guard) { + // Firefox < 21 and Opera < 15 follow ES3 for `parseInt`. + // Chrome fails to trim leading whitespace characters. + // See https://code.google.com/p/v8/issues/detail?id=3109 for more details. + if (guard ? isIterateeCall(string, radix, guard) : radix == null) { + radix = 0; + } else if (radix) { + radix = +radix; + } + string = trim(string); + return nativeParseInt(string, radix || (reHasHexPrefix.test(string) ? 16 : 10)); + } + + /** + * Repeats the given string `n` times. + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to repeat. + * @param {number} [n=0] The number of times to repeat the string. + * @returns {string} Returns the repeated string. + * @example + * + * _.repeat('*', 3); + * // => '***' + * + * _.repeat('abc', 2); + * // => 'abcabc' + * + * _.repeat('abc', 0); + * // => '' + */ + function repeat(string, n) { + var result = ''; + string = baseToString(string); + n = +n; + if (n < 1 || !string || !nativeIsFinite(n)) { + return result; + } + // Leverage the exponentiation by squaring algorithm for a faster repeat. + // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details. + do { + if (n % 2) { + result += string; + } + n = nativeFloor(n / 2); + string += string; + } while (n); + + return result; + } + + /** + * Converts `string` to [snake case](https://en.wikipedia.org/wiki/Snake_case). + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the snake cased string. + * @example + * + * _.snakeCase('Foo Bar'); + * // => 'foo_bar' + * + * _.snakeCase('fooBar'); + * // => 'foo_bar' + * + * _.snakeCase('--foo-bar'); + * // => 'foo_bar' + */ + var snakeCase = createCompounder(function(result, word, index) { + return result + (index ? '_' : '') + word.toLowerCase(); + }); + + /** + * Converts `string` to [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage). + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to convert. + * @returns {string} Returns the start cased string. + * @example + * + * _.startCase('--foo-bar'); + * // => 'Foo Bar' + * + * _.startCase('fooBar'); + * // => 'Foo Bar' + * + * _.startCase('__foo_bar__'); + * // => 'Foo Bar' + */ + var startCase = createCompounder(function(result, word, index) { + return result + (index ? ' ' : '') + (word.charAt(0).toUpperCase() + word.slice(1)); + }); + + /** + * Checks if `string` starts with the given target string. + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The string to search. + * @param {string} [target] The string to search for. + * @param {number} [position=0] The position to search from. + * @returns {boolean} Returns `true` if `string` starts with `target`, else `false`. + * @example + * + * _.startsWith('abc', 'a'); + * // => true + * + * _.startsWith('abc', 'b'); + * // => false + * + * _.startsWith('abc', 'b', 1); + * // => true + */ + function startsWith(string, target, position) { + string = baseToString(string); + position = position == null + ? 0 + : nativeMin(position < 0 ? 0 : (+position || 0), string.length); + + return string.lastIndexOf(target, position) == position; + } + + /** + * Creates a compiled template function that can interpolate data properties + * in "interpolate" delimiters, HTML-escape interpolated data properties in + * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data + * properties may be accessed as free variables in the template. If a setting + * object is provided it takes precedence over `_.templateSettings` values. + * + * **Note:** In the development build `_.template` utilizes + * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl) + * for easier debugging. + * + * For more information on precompiling templates see + * [lodash's custom builds documentation](https://lodash.com/custom-builds). + * + * For more information on Chrome extension sandboxes see + * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval). + * + * @static + * @memberOf _ + * @category String + * @param {string} [string=''] The template string. + * @param {Object} [options] The options object. + * @param {RegExp} [options.escape] The HTML "escape" delimiter. + * @param {RegExp} [options.evaluate] The "evaluate" delimiter. + * @param {Object} [options.imports] An object to import into the template as free variables. + * @param {RegExp} [options.interpolate] The "interpolate" delimiter. + * @param {string} [options.sourceURL] The sourceURL of the template's compiled source. + * @param {string} [options.variable] The data object variable name. + * @param- {Object} [otherOptions] Enables the legacy `options` param signature. + * @returns {Function} Returns the compiled template function. + * @example + * + * // using the "interpolate" delimiter to create a compiled template + * var compiled = _.template('hello <%= user %>!'); + * compiled({ 'user': 'fred' }); + * // => 'hello fred!' + * + * // using the HTML "escape" delimiter to escape data property values + * var compiled = _.template('<%- value %>'); + * compiled({ 'value': '