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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 John Darrington
;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2016, 2020 Marius Bakke <mbakke@fastmail.com>
;;; Copyright © 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu packages regex)
#:use-module ((guix licenses) #:prefix license:)
#:use-module (guix packages)
#:use-module (guix download)
#:use-module (guix git-download)
#:use-module (guix build-system gnu)
#:use-module (guix utils))
(define-public re2
(package
(name "re2")
(version "2020-07-06")
(home-page "https://github.com/google/re2")
(source (origin
(method git-fetch)
(uri (git-reference (url home-page) (commit version)))
(file-name (git-file-name name version))
(sha256
(base32
"12a9r9y7ry3hq0qf4znl9j7pn9mb5k6xp1f8nrk1sagfj1a504mq"))))
(build-system gnu-build-system)
(arguments
`(#:modules ((guix build gnu-build-system)
(guix build utils)
(srfi srfi-1))
#:test-target "test"
;; There is no configure step, but the Makefile respects a prefix.
;; As ./configure does not know anything about the target CXX
;; we need to specify TARGET-g++ explicitly.
#:make-flags (list (string-append "prefix=" %output)
(string-append
"CXX=" ,(string-append
(if (%current-target-system)
(string-append
(%current-target-system) "-")
"")
"g++")))
#:phases
(modify-phases %standard-phases
(delete 'configure)
(add-after 'install 'delete-static-library
(lambda* (#:key outputs #:allow-other-keys)
;; No make target for shared-only; delete the static version.
(delete-file (string-append (assoc-ref outputs "out")
"/lib/libre2.a"))
#t)))))
(synopsis "Fast, safe, thread-friendly regular expression engine")
(description "RE2 is a fast, safe, thread-friendly alternative to
backtracking regular expression engines like those used in PCRE, Perl and
Python. It is a C++ library.")
(license license:bsd-3)))
(define-public tre
(package
(name "tre")
(version "0.8.0")
(source (origin
(method url-fetch)
(uri (string-append "http://laurikari.net/tre/"
name "-" version ".tar.bz2"))
(sha256
(base32
"0n36cgqys59r2gmb7jzbqiwsy790v8nbxk82d2n2saz0rp145ild"))))
(build-system gnu-build-system)
(arguments
`(#:phases
(modify-phases %standard-phases
(add-before 'check 'install-locales
(lambda _
;; The tests require the availability of the
;; 'en_US.ISO-8859-1' locale.
(setenv "LOCPATH" (getcwd))
(invoke "localedef" "--no-archive"
"--prefix" (getcwd) "-i" "en_US"
"-f" "ISO-8859-1" "./en_US.ISO-8859-1"))))))
(synopsis "Approximate regex matching library and agrep utility")
(description "Superset of the POSIX regex API, enabling approximate
matching. Also ships a version of the agrep utility which behaves similar to
grep but features inexact matching.")
(home-page "http://laurikari.net/tre")
(license license:bsd-2)))