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authorArun Isaac2020-02-15 19:25:30 +0530
committerArun Isaac2020-02-15 19:34:29 +0530
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+;;; 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 format)
+ (ice-9 match)
+ (xapian xapian))
+
+(define (get-title record)
+ (match record
+ ((description title identifier) title)))
+
+(define* (search dbpath querystring #:key (offset 0) (pagesize 10))
+ (call-with-database dbpath
+ (lambda (db)
+ (let ((query (parse-query querystring
+ #:stemmer (make-stem "en")
+ #:prefixes '(("title" ."S")
+ ("description" . "XD")))))
+ (mset-fold (lambda (item _)
+ (format #t "~a: #~3,'0d ~a~%"
+ (mset-item-rank item)
+ (mset-item-docid item)
+ (get-title
+ (call-with-input-string
+ (document-data (mset-item-document item))
+ read))))
+ #f
+ (enquire-mset (enquire db query) offset pagesize))))))
+
+(match (command-line)
+ ((_ dbpath . query-terms)
+ (search dbpath (string-join query-terms)))
+ ((program . _)
+ (format (current-error-port) "Usage: ~a DBPATH QUERYTERM...~%" program)))