/usr/share/emacs/site-lisp/w3m/shimbun/sb-atom-hash.el is in w3m-el 1.4.483+0.20120614-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 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 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 | ;;; sb-atom-hash.el --- shimbun backend for atom content -*- coding: iso-2022-7bit -*-
;; Copyright (C) 2006-2009, 2011 Tsuyoshi CHO <tsuyoshi_cho@ybb.ne.jp>
;; Author: Tsuyoshi CHO <tsuyoshi_cho@ybb.ne.jp>
;; Keywords: shimbun
;; This file is a part of shimbun.
;; 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 2, 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; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;; Code:
(require 'sb-atom)
(require 'sb-hash)
(eval-and-compile
(luna-define-class atom-content-hash (content-hash) ())
(luna-define-class shimbun-atom-hash (shimbun-atom) (content)))
(defvar shimbun-atom-hash-group-path-alist
'(;; name rss-url type(opt:html is t) content-start(opt) content-end(opt)
))
(luna-define-method content-hash-update-items ((content-hash atom-content-hash)
shimbun)
(with-temp-buffer
(let ((case-fold-search t))
(shimbun-retrieve-url
(content-hash-contents-url content-hash shimbun) 'no-cache 'no-decode)
;; In some atom feeds, LFs might be used mixed with CRLFs.
(shimbun-strip-cr)
(insert
(prog1
(decode-coding-string (buffer-string) (shimbun-rss-get-encoding))
(erase-buffer)
(set-buffer-multibyte t)))
(content-hash-update-items-impl content-hash shimbun))))
(luna-define-method content-hash-update-items-impl
((content-hash atom-content-hash) shimbun)
(let (xml dc-ns atom-ns content-ns
(buf-str (buffer-string)))
(with-temp-buffer
(erase-buffer)
(set-buffer-multibyte t)
(insert buf-str)
;; parse xml : check url and desc
(setq xml (condition-case err
(shimbun-xml-parse-buffer)
(error
(message "Error while parsing %s: %s"
(content-hash-contents-url content-hash shimbun)
(error-message-string err))
nil)))
(when xml
(setq dc-ns (shimbun-rss-get-namespace-prefix
xml "http://purl.org/dc/elements/1.1/")
atom-ns (shimbun-rss-get-namespace-prefix
xml "http://www.w3.org/2005/Atom"))
(dolist (entry (shimbun-rss-find-el
(intern (concat atom-ns "entry")) xml))
(let ((url
(catch 'url
(dolist (link (shimbun-rss-find-el
(intern (concat atom-ns "link")) entry))
(when (string= (shimbun-atom-attribute-value
(intern (concat atom-ns "rel")) link)
"alternate")
(throw 'url (shimbun-atom-attribute-value
(intern (concat atom-ns "href")) link)))))))
(unless url
(setq url (shimbun-atom-attribute-value
(intern (concat atom-ns "href"))
(car (shimbun-rss-find-el
(intern (concat atom-ns "link")) entry)))))
(when url
(let* ((date (or (shimbun-rss-get-date shimbun url)
(shimbun-rss-node-text atom-ns 'updated entry)
(shimbun-rss-node-text atom-ns 'published entry)
(shimbun-rss-node-text atom-ns 'modified entry)
(shimbun-rss-node-text atom-ns 'created entry)
(shimbun-rss-node-text atom-ns 'issued entry)
(shimbun-rss-node-text dc-ns 'date entry)))
(id (shimbun-atom-build-message-id shimbun url date))
content)
;; save contents
(let ((contentsym 'content)
type mode)
(dolist (content-node (or (shimbun-rss-find-el
(intern (concat atom-ns "content"))
entry)
(progn
(setq contentsym 'summary)
(shimbun-rss-find-el
(intern (concat atom-ns "summary"))
entry))))
(setq type (or (shimbun-atom-attribute-value
(intern (concat atom-ns "type"))
content-node)
"text/plain")
mode (or (shimbun-atom-attribute-value
(intern (concat atom-ns "mode"))
content-node)
""))
(cond
((string-match "xhtml" type)
;; xhtml (type text/xhtml,application/xhtml+xml)
(setq content (shimbun-atom-rebuild-node
atom-ns contentsym entry)))
(t
;; text or html(without xhtml)
(if (string= "escaped" mode)
;; escaped CDATA
(setq content (shimbun-rss-node-text
atom-ns contentsym entry))
;; non-escaped, but "<>& to &xxx;
(let ((text (shimbun-rss-node-text
atom-ns contentsym entry)))
(when text
(setq content (shimbun-decode-entities-string
text)))))))))
(when (and id content)
(content-hash-set-item content-hash id content))))))))))
(luna-define-method initialize-instance :after ((shimbun shimbun-atom-hash)
&rest init-args)
(luna-set-slot-value shimbun 'content
(luna-make-entity 'atom-content-hash))
shimbun)
(luna-define-method shimbun-groups ((shimbun shimbun-atom-hash))
(mapcar 'car shimbun-atom-hash-group-path-alist))
(luna-define-method shimbun-index-url ((shimbun shimbun-atom-hash))
(nth 1 (assoc (shimbun-current-group-internal shimbun)
shimbun-atom-hash-group-path-alist)))
(luna-define-method shimbun-atom-build-message-id ((shimbun shimbun-atom-hash)
url date)
(concat "<" (md5 url) "%" (shimbun-current-group-internal shimbun) ">"))
(luna-define-method shimbun-get-headers :before ((shimbun shimbun-atom-hash)
&optional range)
(content-hash-update-items-impl (luna-slot-value shimbun 'content) shimbun))
(luna-define-method shimbun-make-contents ((shimbun shimbun-atom-hash) header)
(if (nth 2 (assoc (shimbun-current-group-internal shimbun)
shimbun-atom-hash-group-path-alist))
(shimbun-make-html-contents shimbun header)
(shimbun-make-text-contents shimbun header)))
(luna-define-method shimbun-clear-contents ((shimbun shimbun-atom-hash) header)
(let ((start (nth 3 (assoc (shimbun-current-group-internal shimbun)
shimbun-atom-hash-group-path-alist)))
(end (nth 4 (assoc (shimbun-current-group-internal shimbun)
shimbun-atom-hash-group-path-alist)))
(case-fold-search t))
(goto-char (point-min))
(when (and (stringp start)
(re-search-forward start nil t)
(progn
(setq start (point))
(stringp end))
(re-search-forward end nil t))
(delete-region (match-beginning 0) (point-max))
(delete-region (point-min) start)
t)))
(luna-define-method shimbun-article ((shimbun shimbun-atom-hash) header
&optional outbuf)
(content-hash-shimbun-article (luna-slot-value shimbun 'content)
shimbun header outbuf))
(defun shimbun-atom-rebuild-node (namespace local-name element)
(let* ((node (assq (intern (concat namespace (symbol-name local-name)))
element))
(text (shimbun-atom-compose-tag node))
(cleaned-text (if text (shimbun-replace-in-string
text "^[ \000-\037\177]+\\|[ \000-\037\177]+$"
""))))
(if (string-equal "" cleaned-text)
nil
cleaned-text)))
(defun shimbun-atom-compose-tag (node)
(cond
((null node)
"")
((listp node)
(let ((tag (car node))
(attributes (car (cdr node)))
(children (cdr (cdr node))))
(concat "<"
(symbol-name tag)
(if attributes
(concat " "
(mapconcat (lambda (attr)
(concat (symbol-name (car attr))
"=\"" (cdr attr) "\""))
attributes " "))
"")
(if children
(concat ">" (mapconcat 'shimbun-atom-compose-tag
children "")
"</" (symbol-name tag) ">")
" />"))))
((stringp node)
node)))
(provide 'sb-atom-hash)
;;; sb-atom-hash.el ends here
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