From 9a1bfc6980fb492149ad795330f0d5b17a3b59cf Mon Sep 17 00:00:00 2001
From: Arun Isaac
Date: Sat, 15 Feb 2020 19:25:30 +0530
Subject: First commit.

---
 examples/index.scm | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 examples/index.scm

(limited to 'examples/index.scm')

diff --git a/examples/index.scm b/examples/index.scm
new file mode 100644
index 0000000..396df7c
--- /dev/null
+++ b/examples/index.scm
@@ -0,0 +1,48 @@
+;;; guile-xapian --- Guile bindings for Xapian
+;;; Copyright © 2020 Arun Isaac <arunisaac@systemreboot.net>
+;;;
+;;; This file is part of guile-xapian.
+;;;
+;;; guile-xapian 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 2 of the
+;;; License, or (at your option) any later version.
+;;;
+;;; guile-xapian 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 guile-xapian.  If not, see
+;;; <https://www.gnu.org/licenses/>.
+
+(use-modules (ice-9 match)
+             (srfi srfi-26)
+             (xapian xapian))
+
+(define (index datapath dbpath)
+  (call-with-writable-database dbpath
+    (lambda (db)
+      (for-each
+       (lambda (record)
+         (match record
+           ((description title identifier)
+            (let* ((idterm (string-append "Q" identifier))
+                   (doc (make-document #:data (call-with-output-string (cut write record <>))
+                                       #:terms `((,idterm . 0))))
+                   (term-generator (make-term-generator #:stem (make-stem "en")
+                                                        #:document doc)))
+              (index-text! term-generator title #:prefix "S")
+              (index-text! term-generator description #:prefix "XD")
+              (index-text! term-generator title)
+              (increase-termpos! term-generator)
+              (index-text! term-generator description)
+              (replace-document! db idterm doc)))))
+       (call-with-input-file datapath read)))))
+
+(match (command-line)
+  ((_ datapath dbpath)
+   (index datapath dbpath))
+  ((program . _)
+   (format (current-error-port) "Usage: ~a DATAPATH DBPATH~%" program)))
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