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;; Tekuti
;; Copyright (C) 2008 Andy Wingo <wingo at pobox dot com>
;; This program 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.
;;
;; This program 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 this program; if not, contact:
;;
;; Free Software Foundation Voice: +1-617-542-5942
;; 59 Temple Place - Suite 330 Fax: +1-617-542-2652
;; Boston, MA 02111-1307, USA gnu@gnu.org
;;; Commentary:
;;
;; Tags, tags, tags
;;
;;; Code:
(define-module (tekuti tags)
#:use-module (tekuti util)
#:use-module (tekuti url)
#:use-module (tekuti config)
#:use-module (tekuti post)
#:use-module (tekuti git)
#:export (tag-link reindex-tags))
(define (tag-link tagname)
`(a (@ (href ,(string-append *public-url-base* "tags/"
(url:encode tagname))))
,tagname))
(define (compute-tags posts)
(let ((hash (make-hash-table)))
(for-each
(lambda (post)
(for-each
(lambda (cat)
(hash-push! hash cat (assq-ref post 'key)))
(post-tags post)))
posts)
hash))
(define (reindex-tags old-index index)
(compute-tags (assq-ref index 'posts)))
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