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23f87bed | 1 | ;;; gnus-cite.el --- parse citations in articles for Gnus |
eec82323 | 2 | |
23f87bed | 3 | ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 |
16409b0b GM |
4 | ;; Free Software Foundation, Inc. |
5 | ||
6 | ;; Author: Per Abhiddenware | |
7 | ||
8 | ;; This file is part of GNU Emacs. | |
9 | ||
10 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
eec82323 LMI |
11 | ;; it under the terms of the GNU General Public License as published by |
12 | ;; the Free Software Foundation; either version 2, or (at your option) | |
13 | ;; any later version. | |
14 | ||
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
22 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | ;; Boston, MA 02111-1307, USA. | |
24 | ||
25 | ;;; Commentary: | |
26 | ||
27 | ;;; Code: | |
28 | ||
5ab7173c RS |
29 | (eval-when-compile (require 'cl)) |
30 | ||
eec82323 | 31 | (require 'gnus) |
eec82323 | 32 | (require 'gnus-range) |
23f87bed MB |
33 | (require 'gnus-art) |
34 | (require 'message) ; for message-cite-prefix-regexp | |
eec82323 LMI |
35 | |
36 | ;;; Customization: | |
37 | ||
38 | (defgroup gnus-cite nil | |
39 | "Citation." | |
40 | :prefix "gnus-cite-" | |
41 | :link '(custom-manual "(gnus)Article Highlighting") | |
42 | :group 'gnus-article) | |
43 | ||
6748645f LMI |
44 | (defcustom gnus-cited-opened-text-button-line-format "%(%{[-]%}%)\n" |
45 | "Format of opened cited text buttons." | |
46 | :group 'gnus-cite | |
47 | :type 'string) | |
48 | ||
49 | (defcustom gnus-cited-closed-text-button-line-format "%(%{[+]%}%)\n" | |
50 | "Format of closed cited text buttons." | |
eec82323 LMI |
51 | :group 'gnus-cite |
52 | :type 'string) | |
53 | ||
54 | (defcustom gnus-cited-lines-visible nil | |
16409b0b GM |
55 | "The number of lines of hidden cited text to remain visible. |
56 | Or a pair (cons) of numbers which are the number of lines at the top | |
57 | and bottom of the text, respectively, to remain visible." | |
eec82323 LMI |
58 | :group 'gnus-cite |
59 | :type '(choice (const :tag "none" nil) | |
16409b0b GM |
60 | integer |
61 | (cons :tag "Top and Bottom" integer integer))) | |
eec82323 LMI |
62 | |
63 | (defcustom gnus-cite-parse-max-size 25000 | |
64 | "Maximum article size (in bytes) where parsing citations is allowed. | |
65 | Set it to nil to parse all articles." | |
66 | :group 'gnus-cite | |
67 | :type '(choice (const :tag "all" nil) | |
68 | integer)) | |
69 | ||
eec82323 LMI |
70 | (defcustom gnus-cite-max-prefix 20 |
71 | "Maximum possible length for a citation prefix." | |
72 | :group 'gnus-cite | |
73 | :type 'integer) | |
74 | ||
75 | (defcustom gnus-supercite-regexp | |
23f87bed | 76 | (concat "^\\(" message-cite-prefix-regexp "\\)? *" |
eec82323 | 77 | ">>>>> +\"\\([^\"\n]+\\)\" +==") |
6748645f | 78 | "*Regexp matching normal Supercite attribution lines. |
eec82323 LMI |
79 | The first grouping must match prefixes added by other packages." |
80 | :group 'gnus-cite | |
81 | :type 'regexp) | |
82 | ||
83 | (defcustom gnus-supercite-secondary-regexp "^.*\"\\([^\"\n]+\\)\" +==" | |
84 | "Regexp matching mangled Supercite attribution lines. | |
85 | The first regexp group should match the Supercite attribution." | |
86 | :group 'gnus-cite | |
87 | :type 'regexp) | |
88 | ||
89 | (defcustom gnus-cite-minimum-match-count 2 | |
90 | "Minimum number of identical prefixes before we believe it's a citation." | |
91 | :group 'gnus-cite | |
92 | :type 'integer) | |
93 | ||
23f87bed MB |
94 | ;; Some Microsoft products put in a citation that extends to the |
95 | ;; remainder of the message: | |
96 | ;; | |
97 | ;; -----Original Message----- | |
98 | ;; From: ... | |
99 | ;; To: ... | |
100 | ;; Sent: ... [date, in non-RFC-2822 format] | |
101 | ;; Subject: ... | |
102 | ;; | |
103 | ;; Cited message, with no prefixes | |
104 | ;; | |
105 | ;; The four headers are always the same. But note they are prone to | |
106 | ;; folding without additional indentation. | |
107 | ;; | |
108 | ;; Others use "----- Original Message -----" instead, and properly quote | |
109 | ;; the body using "> ". This style is handled without special cases. | |
110 | ||
6748645f | 111 | (defcustom gnus-cite-attribution-prefix |
23f87bed | 112 | "In article\\|in <\\|On \\(Mon\\|Tue\\|Wed\\|Thu\\|Fri\\|Sat\\|Sun\\),\\|----- ?Original Message ?-----" |
6748645f | 113 | "*Regexp matching the beginning of an attribution line." |
eec82323 LMI |
114 | :group 'gnus-cite |
115 | :type 'regexp) | |
116 | ||
117 | (defcustom gnus-cite-attribution-suffix | |
23f87bed | 118 | "\\(\\(wrote\\|writes\\|said\\|says\\|>\\)\\(:\\|\\.\\.\\.\\)\\|----- ?Original Message ?-----\\)[ \t]*$" |
6748645f | 119 | "*Regexp matching the end of an attribution line. |
eec82323 LMI |
120 | The text matching the first grouping will be used as a button." |
121 | :group 'gnus-cite | |
122 | :type 'regexp) | |
123 | ||
23f87bed MB |
124 | (defcustom gnus-cite-unsightly-citation-regexp |
125 | "^-----Original Message-----\nFrom: \\(.+\n\\)+\n" | |
126 | "Regexp matching Microsoft-type rest-of-message citations." | |
127 | :group 'gnus-cite | |
128 | :type 'regexp) | |
129 | ||
130 | (defcustom gnus-cite-ignore-quoted-from t | |
131 | "Non-nil means don't regard lines beginning with \">From \" as cited text. | |
132 | Those lines may have been quoted by MTAs in order not to mix up with | |
133 | the envelope From line." | |
134 | :group 'gnus-cite | |
135 | :type 'boolean) | |
136 | ||
eec82323 | 137 | (defface gnus-cite-attribution-face '((t |
23f87bed | 138 | (:italic t))) |
eec82323 LMI |
139 | "Face used for attribution lines.") |
140 | ||
141 | (defcustom gnus-cite-attribution-face 'gnus-cite-attribution-face | |
142 | "Face used for attribution lines. | |
143 | It is merged with the face for the cited text belonging to the attribution." | |
144 | :group 'gnus-cite | |
145 | :type 'face) | |
146 | ||
147 | (defface gnus-cite-face-1 '((((class color) | |
148 | (background dark)) | |
149 | (:foreground "light blue")) | |
150 | (((class color) | |
151 | (background light)) | |
152 | (:foreground "MidnightBlue")) | |
153 | (t | |
23f87bed | 154 | (:italic t))) |
eec82323 LMI |
155 | "Citation face.") |
156 | ||
157 | (defface gnus-cite-face-2 '((((class color) | |
158 | (background dark)) | |
159 | (:foreground "light cyan")) | |
160 | (((class color) | |
161 | (background light)) | |
162 | (:foreground "firebrick")) | |
163 | (t | |
23f87bed | 164 | (:italic t))) |
eec82323 LMI |
165 | "Citation face.") |
166 | ||
167 | (defface gnus-cite-face-3 '((((class color) | |
168 | (background dark)) | |
169 | (:foreground "light yellow")) | |
170 | (((class color) | |
171 | (background light)) | |
172 | (:foreground "dark green")) | |
173 | (t | |
23f87bed | 174 | (:italic t))) |
eec82323 LMI |
175 | "Citation face.") |
176 | ||
177 | (defface gnus-cite-face-4 '((((class color) | |
178 | (background dark)) | |
179 | (:foreground "light pink")) | |
180 | (((class color) | |
181 | (background light)) | |
182 | (:foreground "OrangeRed")) | |
183 | (t | |
23f87bed | 184 | (:italic t))) |
eec82323 LMI |
185 | "Citation face.") |
186 | ||
187 | (defface gnus-cite-face-5 '((((class color) | |
188 | (background dark)) | |
189 | (:foreground "pale green")) | |
190 | (((class color) | |
191 | (background light)) | |
192 | (:foreground "dark khaki")) | |
193 | (t | |
23f87bed | 194 | (:italic t))) |
eec82323 LMI |
195 | "Citation face.") |
196 | ||
197 | (defface gnus-cite-face-6 '((((class color) | |
198 | (background dark)) | |
199 | (:foreground "beige")) | |
200 | (((class color) | |
201 | (background light)) | |
202 | (:foreground "dark violet")) | |
203 | (t | |
23f87bed | 204 | (:italic t))) |
eec82323 LMI |
205 | "Citation face.") |
206 | ||
207 | (defface gnus-cite-face-7 '((((class color) | |
208 | (background dark)) | |
209 | (:foreground "orange")) | |
210 | (((class color) | |
211 | (background light)) | |
212 | (:foreground "SteelBlue4")) | |
213 | (t | |
23f87bed | 214 | (:italic t))) |
eec82323 LMI |
215 | "Citation face.") |
216 | ||
217 | (defface gnus-cite-face-8 '((((class color) | |
218 | (background dark)) | |
219 | (:foreground "magenta")) | |
220 | (((class color) | |
221 | (background light)) | |
222 | (:foreground "magenta")) | |
223 | (t | |
23f87bed | 224 | (:italic t))) |
eec82323 LMI |
225 | "Citation face.") |
226 | ||
227 | (defface gnus-cite-face-9 '((((class color) | |
228 | (background dark)) | |
229 | (:foreground "violet")) | |
230 | (((class color) | |
231 | (background light)) | |
232 | (:foreground "violet")) | |
233 | (t | |
23f87bed | 234 | (:italic t))) |
eec82323 LMI |
235 | "Citation face.") |
236 | ||
237 | (defface gnus-cite-face-10 '((((class color) | |
238 | (background dark)) | |
239 | (:foreground "medium purple")) | |
240 | (((class color) | |
241 | (background light)) | |
242 | (:foreground "medium purple")) | |
243 | (t | |
23f87bed | 244 | (:italic t))) |
eec82323 LMI |
245 | "Citation face.") |
246 | ||
247 | (defface gnus-cite-face-11 '((((class color) | |
248 | (background dark)) | |
249 | (:foreground "turquoise")) | |
250 | (((class color) | |
251 | (background light)) | |
252 | (:foreground "turquoise")) | |
253 | (t | |
23f87bed | 254 | (:italic t))) |
eec82323 LMI |
255 | "Citation face.") |
256 | ||
257 | (defcustom gnus-cite-face-list | |
258 | '(gnus-cite-face-1 gnus-cite-face-2 gnus-cite-face-3 gnus-cite-face-4 | |
16409b0b GM |
259 | gnus-cite-face-5 gnus-cite-face-6 gnus-cite-face-7 gnus-cite-face-8 |
260 | gnus-cite-face-9 gnus-cite-face-10 gnus-cite-face-11) | |
6748645f | 261 | "*List of faces used for highlighting citations. |
eec82323 LMI |
262 | |
263 | When there are citations from multiple articles in the same message, | |
264 | Gnus will try to give each citation from each article its own face. | |
265 | This should make it easier to see who wrote what." | |
266 | :group 'gnus-cite | |
267 | :type '(repeat face)) | |
268 | ||
269 | (defcustom gnus-cite-hide-percentage 50 | |
270 | "Only hide excess citation if above this percentage of the body." | |
271 | :group 'gnus-cite | |
272 | :type 'number) | |
273 | ||
274 | (defcustom gnus-cite-hide-absolute 10 | |
275 | "Only hide excess citation if above this number of lines in the body." | |
276 | :group 'gnus-cite | |
277 | :type 'integer) | |
278 | ||
eb1666e2 MB |
279 | (defcustom gnus-cite-blank-line-after-header t |
280 | "If non-nil, put a blank line between the citation header and the button." | |
a08b59c9 | 281 | :version "21.4" |
eb1666e2 MB |
282 | :group 'gnus-cite |
283 | :type 'boolean) | |
284 | ||
23f87bed MB |
285 | ;; This has to go here because its default value depends on |
286 | ;; gnus-cite-face-list. | |
287 | (defcustom gnus-article-boring-faces (cons 'gnus-signature-face | |
288 | gnus-cite-face-list) | |
289 | "List of faces that are not worth reading. | |
290 | If an article has more pages below the one you are looking at, but | |
291 | nothing on those pages is a word of at least three letters that is not | |
292 | in a boring face, then the pages will be skipped." | |
a08b59c9 | 293 | :version "21.4" |
23f87bed MB |
294 | :type '(repeat face) |
295 | :group 'gnus-article-hiding) | |
296 | ||
eec82323 LMI |
297 | ;;; Internal Variables: |
298 | ||
299 | (defvar gnus-cite-article nil) | |
6748645f | 300 | (defvar gnus-cite-overlay-list nil) |
eec82323 LMI |
301 | |
302 | (defvar gnus-cite-prefix-alist nil) | |
303 | ;; Alist of citation prefixes. | |
304 | ;; The cdr is a list of lines with that prefix. | |
305 | ||
306 | (defvar gnus-cite-attribution-alist nil) | |
307 | ;; Alist of attribution lines. | |
308 | ;; The car is a line number. | |
309 | ;; The cdr is the prefix for the citation started by that line. | |
310 | ||
311 | (defvar gnus-cite-loose-prefix-alist nil) | |
312 | ;; Alist of citation prefixes that have no matching attribution. | |
313 | ;; The cdr is a list of lines with that prefix. | |
314 | ||
315 | (defvar gnus-cite-loose-attribution-alist nil) | |
316 | ;; Alist of attribution lines that have no matching citation. | |
317 | ;; Each member has the form (WROTE IN PREFIX TAG), where | |
318 | ;; WROTE: is the attribution line number | |
319 | ;; IN: is the line number of the previous line if part of the same attribution, | |
320 | ;; PREFIX: Is the citation prefix of the attribution line(s), and | |
321 | ;; TAG: Is a Supercite tag, if any. | |
322 | ||
6748645f | 323 | (defvar gnus-cited-opened-text-button-line-format-alist |
eec82323 LMI |
324 | `((?b (marker-position beg) ?d) |
325 | (?e (marker-position end) ?d) | |
6748645f | 326 | (?n (count-lines beg end) ?d) |
eec82323 | 327 | (?l (- end beg) ?d))) |
6748645f LMI |
328 | (defvar gnus-cited-opened-text-button-line-format-spec nil) |
329 | (defvar gnus-cited-closed-text-button-line-format-alist | |
330 | gnus-cited-opened-text-button-line-format-alist) | |
331 | (defvar gnus-cited-closed-text-button-line-format-spec nil) | |
332 | ||
eec82323 LMI |
333 | |
334 | ;;; Commands: | |
335 | ||
336 | (defun gnus-article-highlight-citation (&optional force) | |
337 | "Highlight cited text. | |
338 | Each citation in the article will be highlighted with a different face. | |
339 | The faces are taken from `gnus-cite-face-list'. | |
340 | Attribution lines are highlighted with the same face as the | |
341 | corresponding citation merged with `gnus-cite-attribution-face'. | |
342 | ||
343 | Text is considered cited if at least `gnus-cite-minimum-match-count' | |
23f87bed | 344 | lines matches `message-cite-prefix-regexp' with the same prefix. |
eec82323 LMI |
345 | |
346 | Lines matching `gnus-cite-attribution-suffix' and perhaps | |
347 | `gnus-cite-attribution-prefix' are considered attribution lines." | |
348 | (interactive (list 'force)) | |
349 | (save-excursion | |
350 | (set-buffer gnus-article-buffer) | |
351 | (gnus-cite-parse-maybe force) | |
352 | (let ((buffer-read-only nil) | |
353 | (alist gnus-cite-prefix-alist) | |
354 | (faces gnus-cite-face-list) | |
355 | (inhibit-point-motion-hooks t) | |
356 | face entry prefix skip numbers number face-alist) | |
357 | ;; Loop through citation prefixes. | |
358 | (while alist | |
359 | (setq entry (car alist) | |
360 | alist (cdr alist) | |
361 | prefix (car entry) | |
362 | numbers (cdr entry) | |
363 | face (car faces) | |
364 | faces (or (cdr faces) gnus-cite-face-list) | |
365 | face-alist (cons (cons prefix face) face-alist)) | |
366 | (while numbers | |
367 | (setq number (car numbers) | |
368 | numbers (cdr numbers)) | |
369 | (and (not (assq number gnus-cite-attribution-alist)) | |
370 | (not (assq number gnus-cite-loose-attribution-alist)) | |
371 | (gnus-cite-add-face number prefix face)))) | |
372 | ;; Loop through attribution lines. | |
373 | (setq alist gnus-cite-attribution-alist) | |
374 | (while alist | |
375 | (setq entry (car alist) | |
376 | alist (cdr alist) | |
377 | number (car entry) | |
378 | prefix (cdr entry) | |
379 | skip (gnus-cite-find-prefix number) | |
380 | face (cdr (assoc prefix face-alist))) | |
381 | ;; Add attribution button. | |
16409b0b GM |
382 | (goto-char (point-min)) |
383 | (forward-line (1- number)) | |
eec82323 | 384 | (when (re-search-forward gnus-cite-attribution-suffix |
23f87bed | 385 | (gnus-point-at-eol) |
eec82323 LMI |
386 | t) |
387 | (gnus-article-add-button (match-beginning 1) (match-end 1) | |
388 | 'gnus-cite-toggle prefix)) | |
389 | ;; Highlight attribution line. | |
390 | (gnus-cite-add-face number skip face) | |
391 | (gnus-cite-add-face number skip gnus-cite-attribution-face)) | |
392 | ;; Loop through attribution lines. | |
393 | (setq alist gnus-cite-loose-attribution-alist) | |
394 | (while alist | |
395 | (setq entry (car alist) | |
396 | alist (cdr alist) | |
397 | number (car entry) | |
398 | skip (gnus-cite-find-prefix number)) | |
399 | (gnus-cite-add-face number skip gnus-cite-attribution-face))))) | |
400 | ||
401 | (defun gnus-dissect-cited-text () | |
402 | "Dissect the article buffer looking for cited text." | |
403 | (save-excursion | |
404 | (set-buffer gnus-article-buffer) | |
16409b0b | 405 | (gnus-cite-parse-maybe nil t) |
eec82323 LMI |
406 | (let ((alist gnus-cite-prefix-alist) |
407 | prefix numbers number marks m) | |
408 | ;; Loop through citation prefixes. | |
409 | (while alist | |
410 | (setq numbers (pop alist) | |
411 | prefix (pop numbers)) | |
412 | (while numbers | |
413 | (setq number (pop numbers)) | |
414 | (goto-char (point-min)) | |
415 | (forward-line number) | |
416 | (push (cons (point-marker) "") marks) | |
417 | (while (and numbers | |
418 | (= (1- number) (car numbers))) | |
419 | (setq number (pop numbers))) | |
420 | (goto-char (point-min)) | |
421 | (forward-line (1- number)) | |
422 | (push (cons (point-marker) prefix) marks))) | |
423 | ;; Skip to the beginning of the body. | |
16409b0b | 424 | (article-goto-body) |
eec82323 LMI |
425 | (push (cons (point-marker) "") marks) |
426 | ;; Find the end of the body. | |
427 | (goto-char (point-max)) | |
428 | (gnus-article-search-signature) | |
429 | (push (cons (point-marker) "") marks) | |
430 | ;; Sort the marks. | |
6748645f | 431 | (setq marks (sort marks 'car-less-than-car)) |
eec82323 LMI |
432 | (let ((omarks marks)) |
433 | (setq marks nil) | |
434 | (while (cdr omarks) | |
435 | (if (= (caar omarks) (caadr omarks)) | |
436 | (progn | |
437 | (unless (equal (cdar omarks) "") | |
438 | (push (car omarks) marks)) | |
439 | (unless (equal (cdadr omarks) "") | |
440 | (push (cadr omarks) marks)) | |
441 | (unless (and (equal (cdar omarks) "") | |
442 | (equal (cdadr omarks) "") | |
443 | (not (cddr omarks))) | |
444 | (setq omarks (cdr omarks)))) | |
445 | (push (car omarks) marks)) | |
446 | (setq omarks (cdr omarks))) | |
447 | (when (car omarks) | |
448 | (push (car omarks) marks)) | |
449 | (setq marks (setq m (nreverse marks))) | |
450 | (while (cddr m) | |
451 | (if (and (equal (cdadr m) "") | |
452 | (equal (cdar m) (cdaddr m)) | |
453 | (goto-char (caadr m)) | |
454 | (forward-line 1) | |
455 | (= (point) (caaddr m))) | |
456 | (setcdr m (cdddr m)) | |
457 | (setq m (cdr m)))) | |
458 | marks)))) | |
459 | ||
460 | (defun gnus-article-fill-cited-article (&optional force width) | |
461 | "Do word wrapping in the current article. | |
462 | If WIDTH (the numerical prefix), use that text width when filling." | |
463 | (interactive (list t current-prefix-arg)) | |
464 | (save-excursion | |
465 | (set-buffer gnus-article-buffer) | |
466 | (let ((buffer-read-only nil) | |
467 | (inhibit-point-motion-hooks t) | |
468 | (marks (gnus-dissect-cited-text)) | |
469 | (adaptive-fill-mode nil) | |
470 | (filladapt-mode nil) | |
471 | (fill-column (if width (prefix-numeric-value width) fill-column))) | |
472 | (save-restriction | |
473 | (while (cdr marks) | |
eec82323 LMI |
474 | (narrow-to-region (caar marks) (caadr marks)) |
475 | (let ((adaptive-fill-regexp | |
476 | (concat "^" (regexp-quote (cdar marks)) " *")) | |
23f87bed MB |
477 | (fill-prefix |
478 | (if (string= (cdar marks) "") "" | |
479 | (concat (cdar marks) " "))) | |
480 | use-hard-newlines) | |
eec82323 LMI |
481 | (fill-region (point-min) (point-max))) |
482 | (set-marker (caar marks) nil) | |
483 | (setq marks (cdr marks))) | |
484 | (when marks | |
485 | (set-marker (caar marks) nil)) | |
486 | ;; All this information is now incorrect. | |
487 | (setq gnus-cite-prefix-alist nil | |
488 | gnus-cite-attribution-alist nil | |
489 | gnus-cite-loose-prefix-alist nil | |
a8151ef7 LMI |
490 | gnus-cite-loose-attribution-alist nil |
491 | gnus-cite-article nil))))) | |
eec82323 LMI |
492 | |
493 | (defun gnus-article-hide-citation (&optional arg force) | |
494 | "Toggle hiding of all cited text except attribution lines. | |
495 | See the documentation for `gnus-article-highlight-citation'. | |
496 | If given a negative prefix, always show; if given a positive prefix, | |
497 | always hide." | |
498 | (interactive (append (gnus-article-hidden-arg) (list 'force))) | |
6748645f LMI |
499 | (gnus-set-format 'cited-opened-text-button t) |
500 | (gnus-set-format 'cited-closed-text-button t) | |
eec82323 LMI |
501 | (save-excursion |
502 | (set-buffer gnus-article-buffer) | |
eec82323 | 503 | (let ((buffer-read-only nil) |
520aa572 | 504 | marks |
eec82323 LMI |
505 | (inhibit-point-motion-hooks t) |
506 | (props (nconc (list 'article-type 'cite) | |
507 | gnus-hidden-properties)) | |
520aa572 SZ |
508 | (point (point-min)) |
509 | found beg end start) | |
a1506d29 JB |
510 | (while (setq point |
511 | (text-property-any point (point-max) | |
520aa572 SZ |
512 | 'gnus-callback |
513 | 'gnus-article-toggle-cited-text)) | |
514 | (setq found t) | |
515 | (goto-char point) | |
516 | (gnus-article-toggle-cited-text | |
517 | (get-text-property point 'gnus-data) arg) | |
518 | (forward-line 1) | |
519 | (setq point (point))) | |
520 | (unless found | |
521 | (setq marks (gnus-dissect-cited-text)) | |
522 | (while marks | |
523 | (setq beg nil | |
524 | end nil) | |
525 | (while (and marks (string= (cdar marks) "")) | |
526 | (setq marks (cdr marks))) | |
527 | (when marks | |
528 | (setq beg (caar marks))) | |
529 | (while (and marks (not (string= (cdar marks) ""))) | |
530 | (setq marks (cdr marks))) | |
531 | (when marks | |
eec82323 | 532 | (setq end (caar marks))) |
520aa572 SZ |
533 | ;; Skip past lines we want to leave visible. |
534 | (when (and beg end gnus-cited-lines-visible) | |
535 | (goto-char beg) | |
536 | (forward-line (if (consp gnus-cited-lines-visible) | |
537 | (car gnus-cited-lines-visible) | |
538 | gnus-cited-lines-visible)) | |
539 | (if (>= (point) end) | |
540 | (setq beg nil) | |
541 | (setq beg (point-marker)) | |
542 | (when (consp gnus-cited-lines-visible) | |
543 | (goto-char end) | |
544 | (forward-line (- (cdr gnus-cited-lines-visible))) | |
545 | (if (<= (point) beg) | |
546 | (setq beg nil) | |
16409b0b | 547 | (setq end (point-marker)))))) |
520aa572 | 548 | (when (and beg end) |
23f87bed | 549 | (gnus-add-wash-type 'cite) |
520aa572 SZ |
550 | ;; We use markers for the end-points to facilitate later |
551 | ;; wrapping and mangling of text. | |
552 | (setq beg (set-marker (make-marker) beg) | |
553 | end (set-marker (make-marker) end)) | |
554 | (gnus-add-text-properties-when 'article-type nil beg end props) | |
555 | (goto-char beg) | |
eb1666e2 MB |
556 | (when (and gnus-cite-blank-line-after-header |
557 | (not (save-excursion (search-backward "\n\n" nil t)))) | |
520aa572 SZ |
558 | (insert "\n")) |
559 | (put-text-property | |
560 | (setq start (point-marker)) | |
561 | (progn | |
eec82323 LMI |
562 | (gnus-article-add-button |
563 | (point) | |
6748645f LMI |
564 | (progn (eval gnus-cited-closed-text-button-line-format-spec) |
565 | (point)) | |
566 | `gnus-article-toggle-cited-text | |
567 | (list (cons beg end) start)) | |
eec82323 | 568 | (point)) |
520aa572 SZ |
569 | 'article-type 'annotation) |
570 | (set-marker beg (point)))))))) | |
eec82323 | 571 | |
520aa572 SZ |
572 | (defun gnus-article-toggle-cited-text (args &optional arg) |
573 | "Toggle hiding the text in REGION. | |
574 | ARG can be nil or a number. Positive means hide, negative | |
575 | means show, nil means toggle." | |
6748645f | 576 | (let* ((region (car args)) |
16409b0b GM |
577 | (beg (car region)) |
578 | (end (cdr region)) | |
6748645f LMI |
579 | (start (cadr args)) |
580 | (hidden | |
520aa572 | 581 | (text-property-any beg (1- end) 'article-type 'cite)) |
6748645f LMI |
582 | (inhibit-point-motion-hooks t) |
583 | buffer-read-only) | |
520aa572 SZ |
584 | (when (or (null arg) |
585 | (zerop arg) | |
586 | (and (> arg 0) (not hidden)) | |
587 | (and (< arg 0) hidden)) | |
588 | (if hidden | |
23f87bed MB |
589 | (progn |
590 | ;; Can't remove 'cite from g-a-wash-types here because | |
591 | ;; multiple citations may be hidden -jas | |
592 | (gnus-remove-text-properties-when | |
593 | 'article-type 'cite beg end | |
594 | (cons 'article-type (cons 'cite | |
595 | gnus-hidden-properties)))) | |
596 | (gnus-add-wash-type 'cite) | |
520aa572 | 597 | (gnus-add-text-properties-when |
a1506d29 | 598 | 'article-type nil beg end |
520aa572 SZ |
599 | (cons 'article-type (cons 'cite |
600 | gnus-hidden-properties)))) | |
23f87bed MB |
601 | (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist)) |
602 | (gnus-set-mode-line 'article)) | |
520aa572 SZ |
603 | (save-excursion |
604 | (goto-char start) | |
605 | (gnus-delete-line) | |
606 | (put-text-property | |
607 | (point) | |
608 | (progn | |
609 | (gnus-article-add-button | |
610 | (point) | |
611 | (progn (eval | |
612 | (if hidden | |
613 | gnus-cited-opened-text-button-line-format-spec | |
614 | gnus-cited-closed-text-button-line-format-spec)) | |
615 | (point)) | |
616 | `gnus-article-toggle-cited-text | |
617 | args) | |
618 | (point)) | |
619 | 'article-type 'annotation))))) | |
eec82323 LMI |
620 | |
621 | (defun gnus-article-hide-citation-maybe (&optional arg force) | |
622 | "Toggle hiding of cited text that has an attribution line. | |
623 | If given a negative prefix, always show; if given a positive prefix, | |
624 | always hide. | |
625 | This will do nothing unless at least `gnus-cite-hide-percentage' | |
626 | percent and at least `gnus-cite-hide-absolute' lines of the body is | |
627 | cited text with attributions. When called interactively, these two | |
628 | variables are ignored. | |
629 | See also the documentation for `gnus-article-highlight-citation'." | |
6748645f | 630 | (interactive (append (gnus-article-hidden-arg) '(force))) |
23f87bed MB |
631 | (with-current-buffer gnus-article-buffer |
632 | (gnus-delete-wash-type 'cite) | |
633 | (unless (gnus-article-check-hidden-text 'cite arg) | |
634 | (save-excursion | |
635 | (gnus-cite-parse-maybe force) | |
636 | (article-goto-body) | |
637 | (let ((start (point)) | |
638 | (atts gnus-cite-attribution-alist) | |
639 | (buffer-read-only nil) | |
640 | (inhibit-point-motion-hooks t) | |
641 | (hidden 0) | |
642 | total) | |
643 | (goto-char (point-max)) | |
644 | (gnus-article-search-signature) | |
645 | (setq total (count-lines start (point))) | |
eec82323 | 646 | (while atts |
23f87bed MB |
647 | (setq hidden (+ hidden (length (cdr (assoc (cdar atts) |
648 | gnus-cite-prefix-alist)))) | |
649 | atts (cdr atts))) | |
650 | (when (or force | |
651 | (and (> (* 100 hidden) (* gnus-cite-hide-percentage total)) | |
652 | (> hidden gnus-cite-hide-absolute))) | |
653 | (gnus-add-wash-type 'cite) | |
654 | (setq atts gnus-cite-attribution-alist) | |
655 | (while atts | |
656 | (setq total (cdr (assoc (cdar atts) gnus-cite-prefix-alist)) | |
657 | atts (cdr atts)) | |
658 | (while total | |
659 | (setq hidden (car total) | |
660 | total (cdr total)) | |
661 | (goto-char (point-min)) | |
662 | (forward-line (1- hidden)) | |
663 | (unless (assq hidden gnus-cite-attribution-alist) | |
664 | (gnus-add-text-properties | |
665 | (point) (progn (forward-line 1) (point)) | |
666 | (nconc (list 'article-type 'cite) | |
667 | gnus-hidden-properties))))))))) | |
668 | (gnus-set-mode-line 'article))) | |
eec82323 LMI |
669 | |
670 | (defun gnus-article-hide-citation-in-followups () | |
671 | "Hide cited text in non-root articles." | |
672 | (interactive) | |
673 | (save-excursion | |
674 | (set-buffer gnus-article-buffer) | |
675 | (let ((article (cdr gnus-article-current))) | |
676 | (unless (save-excursion | |
677 | (set-buffer gnus-summary-buffer) | |
678 | (gnus-article-displayed-root-p article)) | |
679 | (gnus-article-hide-citation))))) | |
680 | ||
681 | ;;; Internal functions: | |
682 | ||
16409b0b GM |
683 | (defun gnus-cite-parse-maybe (&optional force no-overlay) |
684 | "Always parse the buffer." | |
685 | (gnus-cite-localize) | |
686 | ;;Reset parser information. | |
687 | (setq gnus-cite-prefix-alist nil | |
688 | gnus-cite-attribution-alist nil | |
689 | gnus-cite-loose-prefix-alist nil | |
690 | gnus-cite-loose-attribution-alist nil) | |
691 | (unless no-overlay | |
692 | (gnus-cite-delete-overlays)) | |
693 | ;; Parse if not too large. | |
694 | (if (and gnus-cite-parse-max-size | |
695 | (> (buffer-size) gnus-cite-parse-max-size)) | |
eec82323 | 696 | () |
16409b0b GM |
697 | (setq gnus-cite-article (cons (car gnus-article-current) |
698 | (cdr gnus-article-current))) | |
699 | (gnus-cite-parse-wrapper))) | |
700 | ||
701 | (defun gnus-cite-delete-overlays () | |
702 | (dolist (overlay gnus-cite-overlay-list) | |
23f87bed MB |
703 | (ignore-errors |
704 | (when (or (not (gnus-overlay-end overlay)) | |
705 | (and (>= (gnus-overlay-end overlay) (point-min)) | |
706 | (<= (gnus-overlay-end overlay) (point-max)))) | |
707 | (setq gnus-cite-overlay-list (delete overlay gnus-cite-overlay-list)) | |
708 | (ignore-errors | |
709 | (gnus-delete-overlay overlay)))))) | |
eec82323 LMI |
710 | |
711 | (defun gnus-cite-parse-wrapper () | |
16409b0b GM |
712 | ;; Wrap chopped gnus-cite-parse. |
713 | (article-goto-body) | |
714 | (let ((inhibit-point-motion-hooks t)) | |
715 | (save-excursion | |
716 | (gnus-cite-parse-attributions)) | |
717 | (save-excursion | |
718 | (gnus-cite-parse)) | |
719 | (save-excursion | |
720 | (gnus-cite-connect-attributions)))) | |
eec82323 LMI |
721 | |
722 | (defun gnus-cite-parse () | |
723 | ;; Parse and connect citation prefixes and attribution lines. | |
724 | ||
725 | ;; Parse current buffer searching for citation prefixes. | |
726 | (let ((line (1+ (count-lines (point-min) (point)))) | |
727 | (case-fold-search t) | |
728 | (max (save-excursion | |
729 | (goto-char (point-max)) | |
730 | (gnus-article-search-signature) | |
731 | (point))) | |
23f87bed MB |
732 | (prefix-regexp (concat "^\\(" message-cite-prefix-regexp "\\)")) |
733 | alist entry start begin end numbers prefix guess-limit) | |
eec82323 LMI |
734 | ;; Get all potential prefixes in `alist'. |
735 | (while (< (point) max) | |
736 | ;; Each line. | |
737 | (setq begin (point) | |
23f87bed MB |
738 | guess-limit (progn (skip-chars-forward "^> \t\r\n") (point)) |
739 | end (gnus-point-at-bol 2) | |
eec82323 LMI |
740 | start end) |
741 | (goto-char begin) | |
742 | ;; Ignore standard Supercite attribution prefix. | |
23f87bed MB |
743 | (when (and (< guess-limit (+ begin gnus-cite-max-prefix)) |
744 | (looking-at gnus-supercite-regexp)) | |
eec82323 LMI |
745 | (if (match-end 1) |
746 | (setq end (1+ (match-end 1))) | |
747 | (setq end (1+ begin)))) | |
748 | ;; Ignore very long prefixes. | |
23f87bed MB |
749 | (when (> end (+ begin gnus-cite-max-prefix)) |
750 | (setq end (+ begin gnus-cite-max-prefix))) | |
751 | ;; Ignore quoted envelope From_. | |
752 | (when (and gnus-cite-ignore-quoted-from | |
753 | (prog2 | |
754 | (setq case-fold-search nil) | |
755 | (looking-at ">From ") | |
756 | (setq case-fold-search t))) | |
757 | (setq end (1+ begin))) | |
758 | (while (re-search-forward prefix-regexp (1- end) t) | |
eec82323 LMI |
759 | ;; Each prefix. |
760 | (setq end (match-end 0) | |
761 | prefix (buffer-substring begin end)) | |
762 | (gnus-set-text-properties 0 (length prefix) nil prefix) | |
763 | (setq entry (assoc prefix alist)) | |
764 | (if entry | |
765 | (setcdr entry (cons line (cdr entry))) | |
766 | (push (list prefix line) alist)) | |
767 | (goto-char begin)) | |
768 | (goto-char start) | |
769 | (setq line (1+ line))) | |
23f87bed MB |
770 | ;; Horrible special case for some Microsoft mailers. |
771 | (goto-char (point-min)) | |
772 | (when (re-search-forward gnus-cite-unsightly-citation-regexp max t) | |
773 | (setq begin (count-lines (point-min) (point))) | |
774 | (setq end (count-lines (point-min) max)) | |
775 | (setq entry nil) | |
776 | (while (< begin end) | |
777 | (push begin entry) | |
778 | (setq begin (1+ begin))) | |
779 | (push (cons "" entry) alist)) | |
eec82323 LMI |
780 | ;; We got all the potential prefixes. Now create |
781 | ;; `gnus-cite-prefix-alist' containing the oldest prefix for each | |
23f87bed | 782 | ;; line that appears at least `gnus-cite-minimum-match-count' |
eec82323 LMI |
783 | ;; times. First sort them by length. Longer is older. |
784 | (setq alist (sort alist (lambda (a b) | |
785 | (> (length (car a)) (length (car b)))))) | |
786 | (while alist | |
787 | (setq entry (car alist) | |
788 | prefix (car entry) | |
789 | numbers (cdr entry) | |
790 | alist (cdr alist)) | |
791 | (cond ((null numbers) | |
792 | ;; No lines with this prefix that wasn't also part of | |
793 | ;; a longer prefix. | |
794 | ) | |
795 | ((< (length numbers) gnus-cite-minimum-match-count) | |
796 | ;; Too few lines with this prefix. We keep it a bit | |
797 | ;; longer in case it is an exact match for an attribution | |
798 | ;; line, but we don't remove the line from other | |
799 | ;; prefixes. | |
800 | (push entry gnus-cite-prefix-alist)) | |
801 | (t | |
802 | (push entry | |
803 | gnus-cite-prefix-alist) | |
804 | ;; Remove articles from other prefixes. | |
805 | (let ((loop alist) | |
806 | current) | |
807 | (while loop | |
808 | (setq current (car loop) | |
809 | loop (cdr loop)) | |
810 | (setcdr current | |
811 | (gnus-set-difference (cdr current) numbers))))))))) | |
812 | ||
813 | (defun gnus-cite-parse-attributions () | |
814 | (let (al-alist) | |
815 | ;; Parse attributions | |
816 | (while (re-search-forward gnus-cite-attribution-suffix (point-max) t) | |
817 | (let* ((start (match-beginning 0)) | |
818 | (end (match-end 0)) | |
819 | (wrote (count-lines (point-min) end)) | |
820 | (prefix (gnus-cite-find-prefix wrote)) | |
821 | ;; Check previous line for an attribution leader. | |
822 | (tag (progn | |
823 | (beginning-of-line 1) | |
824 | (when (looking-at gnus-supercite-secondary-regexp) | |
825 | (buffer-substring (match-beginning 1) | |
826 | (match-end 1))))) | |
827 | (in (progn | |
828 | (goto-char start) | |
829 | (and (re-search-backward gnus-cite-attribution-prefix | |
830 | (save-excursion | |
831 | (beginning-of-line 0) | |
832 | (point)) | |
833 | t) | |
834 | (not (re-search-forward gnus-cite-attribution-suffix | |
835 | start t)) | |
836 | (count-lines (point-min) (1+ (point))))))) | |
837 | (when (eq wrote in) | |
838 | (setq in nil)) | |
839 | (goto-char end) | |
840 | ;; don't add duplicates | |
841 | (let ((al (buffer-substring (save-excursion (beginning-of-line 0) | |
842 | (1+ (point))) | |
843 | end))) | |
844 | (if (not (assoc al al-alist)) | |
845 | (progn | |
846 | (push (list wrote in prefix tag) | |
847 | gnus-cite-loose-attribution-alist) | |
848 | (push (cons al t) al-alist)))))))) | |
849 | ||
850 | (defun gnus-cite-connect-attributions () | |
851 | ;; Connect attributions to citations | |
852 | ||
853 | ;; No citations have been connected to attribution lines yet. | |
854 | (setq gnus-cite-loose-prefix-alist (append gnus-cite-prefix-alist nil)) | |
855 | ||
856 | ;; Parse current buffer searching for attribution lines. | |
857 | ;; Find exact supercite citations. | |
858 | (gnus-cite-match-attributions 'small nil | |
859 | (lambda (prefix tag) | |
860 | (when tag | |
861 | (concat "\\`" | |
862 | (regexp-quote prefix) "[ \t]*" | |
863 | (regexp-quote tag) ">")))) | |
864 | ;; Find loose supercite citations after attributions. | |
865 | (gnus-cite-match-attributions 'small t | |
866 | (lambda (prefix tag) | |
867 | (when tag | |
868 | (concat "\\<" | |
869 | (regexp-quote tag) | |
870 | "\\>")))) | |
871 | ;; Find loose supercite citations anywhere. | |
872 | (gnus-cite-match-attributions 'small nil | |
873 | (lambda (prefix tag) | |
874 | (when tag | |
875 | (concat "\\<" | |
876 | (regexp-quote tag) | |
877 | "\\>")))) | |
878 | ;; Find nested citations after attributions. | |
879 | (gnus-cite-match-attributions 'small-if-unique t | |
880 | (lambda (prefix tag) | |
881 | (concat "\\`" (regexp-quote prefix) ".+"))) | |
882 | ;; Find nested citations anywhere. | |
883 | (gnus-cite-match-attributions 'small nil | |
884 | (lambda (prefix tag) | |
885 | (concat "\\`" (regexp-quote prefix) ".+"))) | |
886 | ;; Remove loose prefixes with too few lines. | |
887 | (let ((alist gnus-cite-loose-prefix-alist) | |
888 | entry) | |
889 | (while alist | |
890 | (setq entry (car alist) | |
891 | alist (cdr alist)) | |
892 | (when (< (length (cdr entry)) gnus-cite-minimum-match-count) | |
893 | (setq gnus-cite-prefix-alist | |
894 | (delq entry gnus-cite-prefix-alist) | |
895 | gnus-cite-loose-prefix-alist | |
896 | (delq entry gnus-cite-loose-prefix-alist))))) | |
897 | ;; Find flat attributions. | |
898 | (gnus-cite-match-attributions 'first t nil) | |
899 | ;; Find any attributions (are we getting desperate yet?). | |
900 | (gnus-cite-match-attributions 'first nil nil)) | |
901 | ||
902 | (defun gnus-cite-match-attributions (sort after fun) | |
903 | ;; Match all loose attributions and citations (SORT AFTER FUN) . | |
904 | ;; | |
905 | ;; If SORT is `small', the citation with the shortest prefix will be | |
906 | ;; used, if it is `first' the first prefix will be used, if it is | |
907 | ;; `small-if-unique' the shortest prefix will be used if the | |
908 | ;; attribution line does not share its own prefix with other | |
909 | ;; loose attribution lines, otherwise the first prefix will be used. | |
910 | ;; | |
911 | ;; If AFTER is non-nil, only citations after the attribution line | |
912 | ;; will be considered. | |
913 | ;; | |
914 | ;; If FUN is non-nil, it will be called with the arguments (WROTE | |
915 | ;; PREFIX TAG) and expected to return a regular expression. Only | |
916 | ;; citations whose prefix matches the regular expression will be | |
917 | ;; considered. | |
918 | ;; | |
919 | ;; WROTE is the attribution line number. | |
920 | ;; PREFIX is the attribution line prefix. | |
921 | ;; TAG is the Supercite tag on the attribution line. | |
922 | (let ((atts gnus-cite-loose-attribution-alist) | |
923 | (case-fold-search t) | |
924 | att wrote in prefix tag regexp limit smallest best size) | |
925 | (while atts | |
926 | (setq att (car atts) | |
927 | atts (cdr atts) | |
928 | wrote (nth 0 att) | |
929 | in (nth 1 att) | |
930 | prefix (nth 2 att) | |
931 | tag (nth 3 att) | |
932 | regexp (if fun (funcall fun prefix tag) "") | |
933 | size (cond ((eq sort 'small) t) | |
934 | ((eq sort 'first) nil) | |
935 | (t (< (length (gnus-cite-find-loose prefix)) 2))) | |
936 | limit (if after wrote -1) | |
937 | smallest 1000000 | |
938 | best nil) | |
939 | (let ((cites gnus-cite-loose-prefix-alist) | |
940 | cite candidate numbers first compare) | |
941 | (while cites | |
942 | (setq cite (car cites) | |
943 | cites (cdr cites) | |
944 | candidate (car cite) | |
945 | numbers (cdr cite) | |
946 | first (apply 'min numbers) | |
947 | compare (if size (length candidate) first)) | |
948 | (and (> first limit) | |
949 | regexp | |
950 | (string-match regexp candidate) | |
951 | (< compare smallest) | |
952 | (setq best cite | |
953 | smallest compare)))) | |
954 | (if (null best) | |
955 | () | |
956 | (setq gnus-cite-loose-attribution-alist | |
957 | (delq att gnus-cite-loose-attribution-alist)) | |
958 | (push (cons wrote (car best)) gnus-cite-attribution-alist) | |
959 | (when in | |
960 | (push (cons in (car best)) gnus-cite-attribution-alist)) | |
961 | (when (memq best gnus-cite-loose-prefix-alist) | |
962 | (let ((loop gnus-cite-prefix-alist) | |
963 | (numbers (cdr best)) | |
964 | current) | |
965 | (setq gnus-cite-loose-prefix-alist | |
966 | (delq best gnus-cite-loose-prefix-alist)) | |
967 | (while loop | |
968 | (setq current (car loop) | |
969 | loop (cdr loop)) | |
970 | (if (eq current best) | |
971 | () | |
972 | (setcdr current (gnus-set-difference (cdr current) numbers)) | |
973 | (when (null (cdr current)) | |
974 | (setq gnus-cite-loose-prefix-alist | |
975 | (delq current gnus-cite-loose-prefix-alist) | |
976 | atts (delq current atts))))))))))) | |
977 | ||
978 | (defun gnus-cite-find-loose (prefix) | |
979 | ;; Return a list of loose attribution lines prefixed by PREFIX. | |
980 | (let* ((atts gnus-cite-loose-attribution-alist) | |
981 | att line lines) | |
982 | (while atts | |
983 | (setq att (car atts) | |
984 | line (car att) | |
985 | atts (cdr atts)) | |
986 | (when (string-equal (gnus-cite-find-prefix line) prefix) | |
987 | (push line lines))) | |
988 | lines)) | |
989 | ||
990 | (defun gnus-cite-add-face (number prefix face) | |
991 | ;; At line NUMBER, ignore PREFIX and add FACE to the rest of the line. | |
992 | (when face | |
993 | (let ((inhibit-point-motion-hooks t) | |
6748645f | 994 | from to overlay) |
16409b0b GM |
995 | (goto-char (point-min)) |
996 | (when (zerop (forward-line (1- number))) | |
eec82323 LMI |
997 | (forward-char (length prefix)) |
998 | (skip-chars-forward " \t") | |
999 | (setq from (point)) | |
1000 | (end-of-line 1) | |
1001 | (skip-chars-backward " \t") | |
1002 | (setq to (point)) | |
1003 | (when (< from to) | |
6748645f LMI |
1004 | (push (setq overlay (gnus-make-overlay from to)) |
1005 | gnus-cite-overlay-list) | |
1006 | (gnus-overlay-put overlay 'face face)))))) | |
eec82323 LMI |
1007 | |
1008 | (defun gnus-cite-toggle (prefix) | |
1009 | (save-excursion | |
1010 | (set-buffer gnus-article-buffer) | |
16409b0b | 1011 | (gnus-cite-parse-maybe nil t) |
eec82323 LMI |
1012 | (let ((buffer-read-only nil) |
1013 | (numbers (cdr (assoc prefix gnus-cite-prefix-alist))) | |
1014 | (inhibit-point-motion-hooks t) | |
1015 | number) | |
1016 | (while numbers | |
1017 | (setq number (car numbers) | |
1018 | numbers (cdr numbers)) | |
16409b0b GM |
1019 | (goto-char (point-min)) |
1020 | (forward-line (1- number)) | |
eec82323 | 1021 | (cond ((get-text-property (point) 'invisible) |
23f87bed MB |
1022 | ;; Can't remove 'cite from g-a-wash-types here because |
1023 | ;; multiple citations may be hidden -jas | |
eec82323 LMI |
1024 | (remove-text-properties (point) (progn (forward-line 1) (point)) |
1025 | gnus-hidden-properties)) | |
1026 | ((assq number gnus-cite-attribution-alist)) | |
1027 | (t | |
23f87bed | 1028 | (gnus-add-wash-type 'cite) |
eec82323 LMI |
1029 | (gnus-add-text-properties |
1030 | (point) (progn (forward-line 1) (point)) | |
1031 | (nconc (list 'article-type 'cite) | |
23f87bed MB |
1032 | gnus-hidden-properties)))) |
1033 | (let ((gnus-article-mime-handle-alist-1 | |
1034 | gnus-article-mime-handle-alist)) | |
1035 | (gnus-set-mode-line 'article)))))) | |
eec82323 LMI |
1036 | |
1037 | (defun gnus-cite-find-prefix (line) | |
1038 | ;; Return citation prefix for LINE. | |
1039 | (let ((alist gnus-cite-prefix-alist) | |
1040 | (prefix "") | |
1041 | entry) | |
1042 | (while alist | |
1043 | (setq entry (car alist) | |
1044 | alist (cdr alist)) | |
1045 | (when (memq line (cdr entry)) | |
1046 | (setq prefix (car entry)))) | |
1047 | prefix)) | |
1048 | ||
6748645f LMI |
1049 | (defun gnus-cite-localize () |
1050 | "Make the citation variables local to the article buffer." | |
1051 | (let ((vars '(gnus-cite-article | |
1052 | gnus-cite-overlay-list gnus-cite-prefix-alist | |
1053 | gnus-cite-attribution-alist gnus-cite-loose-prefix-alist | |
1054 | gnus-cite-loose-attribution-alist))) | |
1055 | (while vars | |
1056 | (make-local-variable (pop vars))))) | |
eec82323 | 1057 | |
23f87bed MB |
1058 | (defun gnus-cited-line-p () |
1059 | "Say whether the current line is a cited line." | |
1060 | (save-excursion | |
1061 | (beginning-of-line) | |
1062 | (let ((found nil)) | |
1063 | (dolist (prefix (mapcar 'car gnus-cite-prefix-alist)) | |
1064 | (when (string= (buffer-substring (point) (+ (length prefix) (point))) | |
1065 | prefix) | |
1066 | (setq found t))) | |
1067 | found))) | |
1068 | ||
eec82323 LMI |
1069 | (gnus-ems-redefine) |
1070 | ||
1071 | (provide 'gnus-cite) | |
1072 | ||
16409b0b GM |
1073 | ;; Local Variables: |
1074 | ;; coding: iso-8859-1 | |
1075 | ;; End: | |
1076 | ||
ab5796a9 | 1077 | ;;; arch-tag: 1997b044-6067-471e-8c8f-dc903093098a |
eec82323 | 1078 | ;;; gnus-cite.el ends here |