HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| eec82323 | 1 | ;;; nndoc.el --- single file access for Gnus |
| e84b4b86 TTN |
2 | |
| 3 | ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, | |
| 49f70d46 | 4 | ;; 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. |
| eec82323 | 5 | |
| 6748645f | 6 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> |
| b092f83d | 7 | ;; Masanobu UMEDA <umerin@flab.flab.fujitsu.junet> |
| eec82323 LMI |
8 | ;; Keywords: news |
| 9 | ||
| 10 | ;; This file is part of GNU Emacs. | |
| 11 | ||
| 5e809f55 | 12 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
| eec82323 | 13 | ;; it under the terms of the GNU General Public License as published by |
| 5e809f55 GM |
14 | ;; the Free Software Foundation, either version 3 of the License, or |
| 15 | ;; (at your option) any later version. | |
| eec82323 LMI |
16 | |
| 17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 20 | ;; GNU General Public License for more details. | |
| 21 | ||
| 22 | ;; You should have received a copy of the GNU General Public License | |
| 5e809f55 | 23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| eec82323 LMI |
24 | |
| 25 | ;;; Commentary: | |
| 26 | ||
| b092f83d SZ |
27 | ;; For Outlook mail boxes format, see http://mbx2mbox.sourceforge.net/ |
| 28 | ||
| eec82323 LMI |
29 | ;;; Code: |
| 30 | ||
| 31 | (require 'nnheader) | |
| 32 | (require 'message) | |
| 33 | (require 'nnmail) | |
| 34 | (require 'nnoo) | |
| 6748645f | 35 | (require 'gnus-util) |
| 16409b0b | 36 | (require 'mm-util) |
| eec82323 LMI |
37 | (eval-when-compile (require 'cl)) |
| 38 | ||
| 39 | (nnoo-declare nndoc) | |
| 40 | ||
| 41 | (defvoo nndoc-article-type 'guess | |
| 42 | "*Type of the file. | |
| 43 | One of `mbox', `babyl', `digest', `news', `rnews', `mmdf', `forward', | |
| 16409b0b | 44 | `rfc934', `rfc822-forward', `mime-parts', `standard-digest', |
| b092f83d SZ |
45 | `slack-digest', `clari-briefs', `nsmail', `outlook', `oe-dbx', |
| 46 | `mailman', `exim-bounce', or `guess'.") | |
| eec82323 LMI |
47 | |
| 48 | (defvoo nndoc-post-type 'mail | |
| 49 | "*Whether the nndoc group is `mail' or `post'.") | |
| 50 | ||
| 6748645f LMI |
51 | (defvoo nndoc-open-document-hook 'nnheader-ms-strip-cr |
| 52 | "Hook run after opening a document. | |
| 53 | The default function removes all trailing carriage returns | |
| 16409b0b | 54 | from the document.") |
| 6748645f | 55 | |
| eec82323 LMI |
56 | (defvar nndoc-type-alist |
| 57 | `((mmdf | |
| 58 | (article-begin . "^\^A\^A\^A\^A\n") | |
| 59 | (body-end . "^\^A\^A\^A\^A\n")) | |
| 23f87bed MB |
60 | (mime-digest |
| 61 | (article-begin . "") | |
| 62 | (head-begin . "^ ?\n") | |
| 63 | (head-end . "^ ?$") | |
| 64 | (body-end . "") | |
| 65 | (file-end . "") | |
| 66 | (subtype digest guess)) | |
| 67 | (mime-parts | |
| 68 | (generate-head-function . nndoc-generate-mime-parts-head) | |
| 69 | (article-transform-function . nndoc-transform-mime-parts)) | |
| 16409b0b GM |
70 | (nsmail |
| 71 | (article-begin . "^From - ")) | |
| eec82323 LMI |
72 | (news |
| 73 | (article-begin . "^Path:")) | |
| 74 | (rnews | |
| 75 | (article-begin . "^#! *rnews +\\([0-9]+\\) *\n") | |
| 76 | (body-end-function . nndoc-rnews-body-end)) | |
| 77 | (mbox | |
| 78 | (article-begin-function . nndoc-mbox-article-begin) | |
| 79 | (body-end-function . nndoc-mbox-body-end)) | |
| 80 | (babyl | |
| 81 | (article-begin . "\^_\^L *\n") | |
| 82 | (body-end . "\^_") | |
| 83 | (body-begin-function . nndoc-babyl-body-begin) | |
| 84 | (head-begin-function . nndoc-babyl-head-begin)) | |
| 23f87bed MB |
85 | (exim-bounce |
| 86 | (article-begin . "^------ This is a copy of the message, including all the headers. ------\n\n") | |
| 87 | (body-end-function . nndoc-exim-bounce-body-end-function)) | |
| eec82323 LMI |
88 | (rfc934 |
| 89 | (article-begin . "^--.*\n+") | |
| 90 | (body-end . "^--.*$") | |
| 91 | (prepare-body-function . nndoc-unquote-dashes)) | |
| b092f83d SZ |
92 | (mailman |
| 93 | (article-begin . "^--__--__--\n\nMessage:") | |
| 94 | (body-end . "^--__--__--$") | |
| 95 | (prepare-body-function . nndoc-unquote-dashes)) | |
| eec82323 LMI |
96 | (clari-briefs |
| 97 | (article-begin . "^ \\*") | |
| 98 | (body-end . "^\t------*[ \t]^*\n^ \\*") | |
| 99 | (body-begin . "^\t") | |
| 100 | (head-end . "^\t") | |
| 101 | (generate-head-function . nndoc-generate-clari-briefs-head) | |
| 102 | (article-transform-function . nndoc-transform-clari-briefs)) | |
| 23f87bed | 103 | |
| eec82323 | 104 | (standard-digest |
| 6748645f LMI |
105 | (first-article . ,(concat "^" (make-string 70 ?-) "\n *\n+")) |
| 106 | (article-begin . ,(concat "^\n" (make-string 30 ?-) "\n *\n+")) | |
| eec82323 LMI |
107 | (prepare-body-function . nndoc-unquote-dashes) |
| 108 | (body-end-function . nndoc-digest-body-end) | |
| 6748645f LMI |
109 | (head-end . "^ *$") |
| 110 | (body-begin . "^ *\n") | |
| eec82323 LMI |
111 | (file-end . "^End of .*digest.*[0-9].*\n\\*\\*\\|^End of.*Digest *$") |
| 112 | (subtype digest guess)) | |
| 113 | (slack-digest | |
| 114 | (article-begin . "^------------------------------*[\n \t]+") | |
| 115 | (head-end . "^ ?$") | |
| 116 | (body-end-function . nndoc-digest-body-end) | |
| 117 | (body-begin . "^ ?$") | |
| 118 | (file-end . "^End of") | |
| 119 | (prepare-body-function . nndoc-unquote-dashes) | |
| 120 | (subtype digest guess)) | |
| 121 | (lanl-gov-announce | |
| 122 | (article-begin . "^\\\\\\\\\n") | |
| 01c52d31 | 123 | (head-begin . "^\\(Paper.*:\\|arXiv:\\)") |
| eec82323 LMI |
124 | (head-end . "\\(^\\\\\\\\.*\n\\|-----------------\\)") |
| 125 | (body-begin . "") | |
| b092f83d SZ |
126 | (body-end . "\\(-------------------------------------------------\\|%-%-%-%-%-%-%-%-%-%-%-%-%-%-\\|%%--%%--%%--%%--%%--%%--%%--%%--\\|%%%---%%%---%%%---%%%---\\)") |
| 127 | (file-end . "\\(^Title: Recent Seminal\\|%%%---%%%---%%%---%%%---\\)") | |
| eec82323 LMI |
128 | (generate-head-function . nndoc-generate-lanl-gov-head) |
| 129 | (article-transform-function . nndoc-transform-lanl-gov-announce) | |
| 130 | (subtype preprints guess)) | |
| 131 | (rfc822-forward | |
| 23f87bed MB |
132 | (article-begin . "^\n+") |
| 133 | (body-end-function . nndoc-rfc822-forward-body-end-function) | |
| 134 | (generate-head-function . nndoc-rfc822-forward-generate-head) | |
| 135 | (generate-article-function . nndoc-rfc822-forward-generate-article)) | |
| 16409b0b GM |
136 | (outlook |
| 137 | (article-begin-function . nndoc-outlook-article-begin) | |
| 138 | (body-end . "\0")) | |
| b092f83d SZ |
139 | (oe-dbx ;; Outlook Express DBX format |
| 140 | (dissection-function . nndoc-oe-dbx-dissection) | |
| 141 | (generate-head-function . nndoc-oe-dbx-generate-head) | |
| 142 | (generate-article-function . nndoc-oe-dbx-generate-article)) | |
| 143 | (forward | |
| 144 | (article-begin . "^-+ \\(Start of \\)?forwarded message.*\n+") | |
| 145 | (body-end . "^-+ End \\(of \\)?forwarded message.*$") | |
| 146 | (prepare-body-function . nndoc-unquote-dashes)) | |
| 147 | (mail-in-mail ;; Wild guess on mailer daemon's messages or others | |
| 148 | (article-begin-function . nndoc-mail-in-mail-article-begin)) | |
| eec82323 LMI |
149 | (guess |
| 150 | (guess . t) | |
| 151 | (subtype nil)) | |
| 152 | (digest | |
| 153 | (guess . t) | |
| 154 | (subtype nil)) | |
| 155 | (preprints | |
| 156 | (guess . t) | |
| 157 | (subtype nil)))) | |
| 158 | ||
| b092f83d SZ |
159 | (defvar nndoc-binary-file-names ".[Dd][Bb][Xx]$" |
| 160 | "Regexp for binary nndoc file names.") | |
| 161 | ||
| eec82323 | 162 | \f |
| eec82323 LMI |
163 | (defvoo nndoc-file-begin nil) |
| 164 | (defvoo nndoc-first-article nil) | |
| eec82323 LMI |
165 | (defvoo nndoc-article-begin nil) |
| 166 | (defvoo nndoc-head-begin nil) | |
| 167 | (defvoo nndoc-head-end nil) | |
| 168 | (defvoo nndoc-file-end nil) | |
| 169 | (defvoo nndoc-body-begin nil) | |
| 170 | (defvoo nndoc-body-end-function nil) | |
| 171 | (defvoo nndoc-body-begin-function nil) | |
| 172 | (defvoo nndoc-head-begin-function nil) | |
| 173 | (defvoo nndoc-body-end nil) | |
| 6748645f | 174 | ;; nndoc-dissection-alist is a list of sublists. Each sublist holds the |
| 16409b0b GM |
175 | ;; following items. ARTICLE acts as the association key and is an ordinal |
| 176 | ;; starting at 1. HEAD-BEGIN [0], HEAD-END [1], BODY-BEGIN [2] and BODY-END | |
| 177 | ;; [3] are positions in the `nndoc' buffer. LINE-COUNT [4] is a count of | |
| 178 | ;; lines in the body. For MIME dissections only, ARTICLE-INSERT [5] and | |
| 179 | ;; SUMMARY-INSERT [6] give headers to insert for full article or summary line | |
| 180 | ;; generation, respectively. Other headers usually follow directly from the | |
| 181 | ;; buffer. Value `nil' means no insert. | |
| eec82323 LMI |
182 | (defvoo nndoc-dissection-alist nil) |
| 183 | (defvoo nndoc-prepare-body-function nil) | |
| 184 | (defvoo nndoc-generate-head-function nil) | |
| 185 | (defvoo nndoc-article-transform-function nil) | |
| 186 | (defvoo nndoc-article-begin-function nil) | |
| b092f83d SZ |
187 | (defvoo nndoc-generate-article-function nil) |
| 188 | (defvoo nndoc-dissection-function nil) | |
| eec82323 LMI |
189 | |
| 190 | (defvoo nndoc-status-string "") | |
| 191 | (defvoo nndoc-group-alist nil) | |
| 192 | (defvoo nndoc-current-buffer nil | |
| 193 | "Current nndoc news buffer.") | |
| 194 | (defvoo nndoc-address nil) | |
| 195 | ||
| 196 | (defconst nndoc-version "nndoc 1.0" | |
| 197 | "nndoc version.") | |
| 198 | ||
| 199 | \f | |
| 200 | ||
| 201 | ;;; Interface functions | |
| 202 | ||
| 203 | (nnoo-define-basics nndoc) | |
| 204 | ||
| 205 | (deffoo nndoc-retrieve-headers (articles &optional newsgroup server fetch-old) | |
| 206 | (when (nndoc-possibly-change-buffer newsgroup server) | |
| 207 | (save-excursion | |
| 208 | (set-buffer nntp-server-buffer) | |
| 209 | (erase-buffer) | |
| 210 | (let (article entry) | |
| 211 | (if (stringp (car articles)) | |
| 212 | 'headers | |
| 213 | (while articles | |
| 214 | (when (setq entry (cdr (assq (setq article (pop articles)) | |
| 215 | nndoc-dissection-alist))) | |
| 216 | (insert (format "221 %d Article retrieved.\n" article)) | |
| 217 | (if nndoc-generate-head-function | |
| 218 | (funcall nndoc-generate-head-function article) | |
| 219 | (insert-buffer-substring | |
| 220 | nndoc-current-buffer (car entry) (nth 1 entry))) | |
| 221 | (goto-char (point-max)) | |
| 16409b0b | 222 | (unless (eq (char-after (1- (point))) ?\n) |
| eec82323 LMI |
223 | (insert "\n")) |
| 224 | (insert (format "Lines: %d\n" (nth 4 entry))) | |
| 225 | (insert ".\n"))) | |
| 226 | ||
| 227 | (nnheader-fold-continuation-lines) | |
| 228 | 'headers))))) | |
| 229 | ||
| 230 | (deffoo nndoc-request-article (article &optional newsgroup server buffer) | |
| 231 | (nndoc-possibly-change-buffer newsgroup server) | |
| 232 | (save-excursion | |
| 233 | (let ((buffer (or buffer nntp-server-buffer)) | |
| 234 | (entry (cdr (assq article nndoc-dissection-alist))) | |
| 235 | beg) | |
| 236 | (set-buffer buffer) | |
| 237 | (erase-buffer) | |
| 238 | (when entry | |
| b092f83d SZ |
239 | (cond |
| 240 | ((stringp article) nil) | |
| 241 | (nndoc-generate-article-function | |
| 242 | (funcall nndoc-generate-article-function article)) | |
| 243 | (t | |
| eec82323 LMI |
244 | (insert-buffer-substring |
| 245 | nndoc-current-buffer (car entry) (nth 1 entry)) | |
| 246 | (insert "\n") | |
| 247 | (setq beg (point)) | |
| 248 | (insert-buffer-substring | |
| 249 | nndoc-current-buffer (nth 2 entry) (nth 3 entry)) | |
| 250 | (goto-char beg) | |
| 251 | (when nndoc-prepare-body-function | |
| 252 | (funcall nndoc-prepare-body-function)) | |
| 253 | (when nndoc-article-transform-function | |
| 254 | (funcall nndoc-article-transform-function article)) | |
| b092f83d | 255 | t)))))) |
| eec82323 LMI |
256 | |
| 257 | (deffoo nndoc-request-group (group &optional server dont-check) | |
| 258 | "Select news GROUP." | |
| 259 | (let (number) | |
| 260 | (cond | |
| 261 | ((not (nndoc-possibly-change-buffer group server)) | |
| 262 | (nnheader-report 'nndoc "No such file or buffer: %s" | |
| 263 | nndoc-address)) | |
| 264 | (dont-check | |
| 265 | (nnheader-report 'nndoc "Selected group %s" group) | |
| 266 | t) | |
| 267 | ((zerop (setq number (length nndoc-dissection-alist))) | |
| 268 | (nndoc-close-group group) | |
| 269 | (nnheader-report 'nndoc "No articles in group %s" group)) | |
| 270 | (t | |
| 271 | (nnheader-insert "211 %d %d %d %s\n" number 1 number group))))) | |
| 272 | ||
| 273 | (deffoo nndoc-request-type (group &optional article) | |
| 274 | (cond ((not article) 'unknown) | |
| b092f83d SZ |
275 | (nndoc-post-type nndoc-post-type) |
| 276 | (t 'unknown))) | |
| eec82323 LMI |
277 | |
| 278 | (deffoo nndoc-close-group (group &optional server) | |
| 279 | (nndoc-possibly-change-buffer group server) | |
| 280 | (and nndoc-current-buffer | |
| 281 | (buffer-name nndoc-current-buffer) | |
| 282 | (kill-buffer nndoc-current-buffer)) | |
| 283 | (setq nndoc-group-alist (delq (assoc group nndoc-group-alist) | |
| 284 | nndoc-group-alist)) | |
| 285 | (setq nndoc-current-buffer nil) | |
| 286 | (nnoo-close-server 'nndoc server) | |
| 287 | (setq nndoc-dissection-alist nil) | |
| 288 | t) | |
| 289 | ||
| 290 | (deffoo nndoc-request-list (&optional server) | |
| 291 | nil) | |
| 292 | ||
| 293 | (deffoo nndoc-request-newgroups (date &optional server) | |
| 294 | nil) | |
| 295 | ||
| 296 | (deffoo nndoc-request-list-newsgroups (&optional server) | |
| 297 | nil) | |
| 298 | ||
| 299 | \f | |
| 300 | ;;; Internal functions. | |
| 301 | ||
| 302 | (defun nndoc-possibly-change-buffer (group source) | |
| 303 | (let (buf) | |
| 304 | (cond | |
| 305 | ;; The current buffer is this group's buffer. | |
| 306 | ((and nndoc-current-buffer | |
| 307 | (buffer-name nndoc-current-buffer) | |
| 308 | (eq nndoc-current-buffer | |
| 309 | (setq buf (cdr (assoc group nndoc-group-alist)))))) | |
| 310 | ;; We change buffers by taking an old from the group alist. | |
| 311 | ;; `source' is either a string (a file name) or a buffer object. | |
| 312 | (buf | |
| 313 | (setq nndoc-current-buffer buf)) | |
| 314 | ;; It's a totally new group. | |
| 315 | ((or (and (bufferp nndoc-address) | |
| 316 | (buffer-name nndoc-address)) | |
| 317 | (and (stringp nndoc-address) | |
| 318 | (file-exists-p nndoc-address) | |
| 319 | (not (file-directory-p nndoc-address)))) | |
| 320 | (push (cons group (setq nndoc-current-buffer | |
| 321 | (get-buffer-create | |
| 322 | (concat " *nndoc " group "*")))) | |
| 323 | nndoc-group-alist) | |
| 324 | (setq nndoc-dissection-alist nil) | |
| 325 | (save-excursion | |
| 326 | (set-buffer nndoc-current-buffer) | |
| eec82323 | 327 | (erase-buffer) |
| b092f83d SZ |
328 | (if (and (stringp nndoc-address) |
| 329 | (string-match nndoc-binary-file-names nndoc-address)) | |
| 330 | (let ((coding-system-for-read 'binary)) | |
| 331 | (mm-insert-file-contents nndoc-address)) | |
| 332 | (if (stringp nndoc-address) | |
| 333 | (nnheader-insert-file-contents nndoc-address) | |
| 334 | (insert-buffer-substring nndoc-address)) | |
| 335 | (run-hooks 'nndoc-open-document-hook))))) | |
| eec82323 LMI |
336 | ;; Initialize the nndoc structures according to this new document. |
| 337 | (when (and nndoc-current-buffer | |
| 338 | (not nndoc-dissection-alist)) | |
| 339 | (save-excursion | |
| 340 | (set-buffer nndoc-current-buffer) | |
| 341 | (nndoc-set-delims) | |
| 6748645f LMI |
342 | (if (eq nndoc-article-type 'mime-parts) |
| 343 | (nndoc-dissect-mime-parts) | |
| 344 | (nndoc-dissect-buffer)))) | |
| eec82323 LMI |
345 | (unless nndoc-current-buffer |
| 346 | (nndoc-close-server)) | |
| 347 | ;; Return whether we managed to select a file. | |
| 348 | nndoc-current-buffer)) | |
| 349 | ||
| 350 | ;;; | |
| 351 | ;;; Deciding what document type we have | |
| 352 | ;;; | |
| 353 | ||
| 354 | (defun nndoc-set-delims () | |
| 355 | "Set the nndoc delimiter variables according to the type of the document." | |
| 356 | (let ((vars '(nndoc-file-begin | |
| 357 | nndoc-first-article | |
| 6748645f LMI |
358 | nndoc-article-begin-function |
| 359 | nndoc-head-begin nndoc-head-end | |
| eec82323 LMI |
360 | nndoc-file-end nndoc-article-begin |
| 361 | nndoc-body-begin nndoc-body-end-function nndoc-body-end | |
| 362 | nndoc-prepare-body-function nndoc-article-transform-function | |
| 363 | nndoc-generate-head-function nndoc-body-begin-function | |
| b092f83d SZ |
364 | nndoc-head-begin-function |
| 365 | nndoc-generate-article-function | |
| 366 | nndoc-dissection-function))) | |
| eec82323 LMI |
367 | (while vars |
| 368 | (set (pop vars) nil))) | |
| 369 | (let (defs) | |
| 370 | ;; Guess away until we find the real file type. | |
| 371 | (while (assq 'guess (setq defs (cdr (assq nndoc-article-type | |
| 372 | nndoc-type-alist)))) | |
| 373 | (setq nndoc-article-type (nndoc-guess-type nndoc-article-type))) | |
| 374 | ;; Set the nndoc variables. | |
| 375 | (while defs | |
| 376 | (set (intern (format "nndoc-%s" (caar defs))) | |
| 377 | (cdr (pop defs)))))) | |
| 378 | ||
| 379 | (defun nndoc-guess-type (subtype) | |
| 380 | (let ((alist nndoc-type-alist) | |
| 381 | results result entry) | |
| 382 | (while (and (not result) | |
| 383 | (setq entry (pop alist))) | |
| 384 | (when (memq subtype (or (cdr (assq 'subtype entry)) '(guess))) | |
| 385 | (goto-char (point-min)) | |
| 16409b0b GM |
386 | ;; Remove blank lines. |
| 387 | (while (eq (following-char) ?\n) | |
| 388 | (delete-char 1)) | |
| eec82323 LMI |
389 | (when (numberp (setq result (funcall (intern |
| 390 | (format "nndoc-%s-type-p" | |
| 391 | (car entry)))))) | |
| 392 | (push (cons result entry) results) | |
| 393 | (setq result nil)))) | |
| 394 | (unless (or result results) | |
| 395 | (error "Document is not of any recognized type")) | |
| 396 | (if result | |
| 397 | (car entry) | |
| 23f87bed | 398 | (cadar (last (sort results 'car-less-than-car)))))) |
| eec82323 LMI |
399 | |
| 400 | ;;; | |
| 401 | ;;; Built-in type predicates and functions | |
| 402 | ;;; | |
| 403 | ||
| 404 | (defun nndoc-mbox-type-p () | |
| 405 | (when (looking-at message-unix-mail-delimiter) | |
| 406 | t)) | |
| 407 | ||
| 408 | (defun nndoc-mbox-article-begin () | |
| 409 | (when (re-search-forward (concat "^" message-unix-mail-delimiter) nil t) | |
| 410 | (goto-char (match-beginning 0)))) | |
| 411 | ||
| 412 | (defun nndoc-mbox-body-end () | |
| 413 | (let ((beg (point)) | |
| 414 | len end) | |
| 415 | (when | |
| 416 | (save-excursion | |
| 417 | (and (re-search-backward | |
| 418 | (concat "^" message-unix-mail-delimiter) nil t) | |
| 419 | (setq end (point)) | |
| 420 | (search-forward "\n\n" beg t) | |
| 421 | (re-search-backward | |
| 422 | "^Content-Length:[ \t]*\\([0-9]+\\) *$" end t) | |
| e9bd5782 | 423 | (setq len (string-to-number (match-string 1))) |
| eec82323 LMI |
424 | (search-forward "\n\n" beg t) |
| 425 | (unless (= (setq len (+ (point) len)) (point-max)) | |
| 426 | (and (< len (point-max)) | |
| 427 | (goto-char len) | |
| 428 | (looking-at message-unix-mail-delimiter))))) | |
| 429 | (goto-char len)))) | |
| 430 | ||
| 431 | (defun nndoc-mmdf-type-p () | |
| 432 | (when (looking-at "\^A\^A\^A\^A$") | |
| 433 | t)) | |
| 434 | ||
| 435 | (defun nndoc-news-type-p () | |
| 436 | (when (looking-at "^Path:.*\n") | |
| 437 | t)) | |
| 438 | ||
| 439 | (defun nndoc-rnews-type-p () | |
| 440 | (when (looking-at "#! *rnews") | |
| 441 | t)) | |
| 442 | ||
| 443 | (defun nndoc-rnews-body-end () | |
| 444 | (and (re-search-backward nndoc-article-begin nil t) | |
| 445 | (forward-line 1) | |
| e9bd5782 | 446 | (goto-char (+ (point) (string-to-number (match-string 1)))))) |
| eec82323 LMI |
447 | |
| 448 | (defun nndoc-babyl-type-p () | |
| 449 | (when (re-search-forward "\^_\^L *\n" nil t) | |
| 450 | t)) | |
| 451 | ||
| 452 | (defun nndoc-babyl-body-begin () | |
| 453 | (re-search-forward "^\n" nil t) | |
| 6748645f | 454 | (when (looking-at "\\*\\*\\* EOOH \\*\\*\\*") |
| eec82323 LMI |
455 | (let ((next (or (save-excursion |
| 456 | (re-search-forward nndoc-article-begin nil t)) | |
| 457 | (point-max)))) | |
| 458 | (unless (re-search-forward "^\n" next t) | |
| 459 | (goto-char next) | |
| 460 | (forward-line -1) | |
| 461 | (insert "\n") | |
| 462 | (forward-line -1))))) | |
| 463 | ||
| 464 | (defun nndoc-babyl-head-begin () | |
| 465 | (when (re-search-forward "^[0-9].*\n" nil t) | |
| 6748645f | 466 | (when (looking-at "\\*\\*\\* EOOH \\*\\*\\*") |
| eec82323 LMI |
467 | (forward-line 1)) |
| 468 | t)) | |
| 469 | ||
| 470 | (defun nndoc-forward-type-p () | |
| b092f83d | 471 | (when (and (re-search-forward "^-+ \\(Start of \\)?forwarded message.*\n+" |
| 16409b0b | 472 | nil t) |
| 23f87bed | 473 | (looking-at "[\r\n]*[a-zA-Z][a-zA-Z0-9-]*:\\|^>?From ")) |
| eec82323 LMI |
474 | t)) |
| 475 | ||
| 476 | (defun nndoc-rfc934-type-p () | |
| 477 | (when (and (re-search-forward "^-+ Start of forwarded.*\n+" nil t) | |
| 478 | (not (re-search-forward "^Subject:.*digest" nil t)) | |
| 479 | (not (re-search-backward "^From:" nil t 2)) | |
| 480 | (not (re-search-forward "^From:" nil t 2))) | |
| 481 | t)) | |
| 482 | ||
| b092f83d SZ |
483 | (defun nndoc-mailman-type-p () |
| 484 | (when (re-search-forward "^--__--__--\n+" nil t) | |
| 485 | t)) | |
| 486 | ||
| eec82323 LMI |
487 | (defun nndoc-rfc822-forward-type-p () |
| 488 | (save-restriction | |
| 489 | (message-narrow-to-head) | |
| 490 | (when (re-search-forward "^Content-Type: *message/rfc822" nil t) | |
| 491 | t))) | |
| 492 | ||
| 493 | (defun nndoc-rfc822-forward-body-end-function () | |
| 494 | (goto-char (point-max))) | |
| 495 | ||
| 23f87bed MB |
496 | (defun nndoc-rfc822-forward-generate-article (article &optional head) |
| 497 | (let ((entry (cdr (assq article nndoc-dissection-alist))) | |
| 498 | (begin (point)) | |
| 499 | encoding) | |
| 500 | (with-current-buffer nndoc-current-buffer | |
| 501 | (save-restriction | |
| 502 | (message-narrow-to-head) | |
| 503 | (setq encoding (message-fetch-field "content-transfer-encoding")))) | |
| 504 | (insert-buffer-substring nndoc-current-buffer (car entry) (nth 3 entry)) | |
| 505 | (when encoding | |
| 506 | (save-restriction | |
| 507 | (narrow-to-region begin (point-max)) | |
| 508 | (mm-decode-content-transfer-encoding | |
| 509 | (intern (downcase (mail-header-strip encoding)))))) | |
| 510 | (when head | |
| 511 | (goto-char begin) | |
| 512 | (when (search-forward "\n\n" nil t) | |
| 513 | (delete-region (1- (point)) (point-max))))) | |
| 514 | t) | |
| 515 | ||
| 516 | (defun nndoc-rfc822-forward-generate-head (article) | |
| 517 | (nndoc-rfc822-forward-generate-article article 'head)) | |
| 518 | ||
| 6748645f LMI |
519 | (defun nndoc-mime-parts-type-p () |
| 520 | (let ((case-fold-search t) | |
| 521 | (limit (search-forward "\n\n" nil t))) | |
| 522 | (goto-char (point-min)) | |
| 523 | (when (and limit | |
| 16409b0b GM |
524 | (re-search-forward |
| 525 | (concat "\ | |
| 526 | ^Content-Type:[ \t]*multipart/[a-z]+ *; *\\(\\(\n[ \t]\\)?.*;\\)*" | |
| 527 | "\\(\n[ \t]\\)?[ \t]*boundary=\"?[^\"\n]*[^\" \t\n]") | |
| 528 | limit t)) | |
| 6748645f LMI |
529 | t))) |
| 530 | ||
| 531 | (defun nndoc-transform-mime-parts (article) | |
| 16409b0b GM |
532 | (let* ((entry (cdr (assq article nndoc-dissection-alist))) |
| 533 | (headers (nth 5 entry))) | |
| 534 | (when headers | |
| 6748645f | 535 | (goto-char (point-min)) |
| 16409b0b GM |
536 | (insert headers)))) |
| 537 | ||
| 538 | (defun nndoc-generate-mime-parts-head (article) | |
| 539 | (let* ((entry (cdr (assq article nndoc-dissection-alist))) | |
| 540 | (headers (nth 6 entry))) | |
| 541 | (save-restriction | |
| 542 | (narrow-to-region (point) (point)) | |
| 543 | (insert-buffer-substring | |
| 544 | nndoc-current-buffer (car entry) (nth 1 entry)) | |
| 545 | (goto-char (point-max))) | |
| 546 | (when headers | |
| 547 | (insert headers)))) | |
| 6748645f | 548 | |
| eec82323 LMI |
549 | (defun nndoc-clari-briefs-type-p () |
| 550 | (when (let ((case-fold-search nil)) | |
| 551 | (re-search-forward "^\t[^a-z]+ ([^a-z]+) --" nil t)) | |
| 552 | t)) | |
| 553 | ||
| 554 | (defun nndoc-transform-clari-briefs (article) | |
| 555 | (goto-char (point-min)) | |
| 556 | (when (looking-at " *\\*\\(.*\\)\n") | |
| 557 | (replace-match "" t t)) | |
| 558 | (nndoc-generate-clari-briefs-head article)) | |
| 559 | ||
| 560 | (defun nndoc-generate-clari-briefs-head (article) | |
| 561 | (let ((entry (cdr (assq article nndoc-dissection-alist))) | |
| 562 | subject from) | |
| 563 | (save-excursion | |
| 564 | (set-buffer nndoc-current-buffer) | |
| 565 | (save-restriction | |
| 566 | (narrow-to-region (car entry) (nth 3 entry)) | |
| 567 | (goto-char (point-min)) | |
| 568 | (when (looking-at " *\\*\\(.*\\)$") | |
| 569 | (setq subject (match-string 1)) | |
| 570 | (when (string-match "[ \t]+$" subject) | |
| 571 | (setq subject (substring subject 0 (match-beginning 0))))) | |
| 572 | (when | |
| 573 | (let ((case-fold-search nil)) | |
| 574 | (re-search-forward | |
| 575 | "^\t\\([^a-z]+\\(,[^(]+\\)? ([^a-z]+)\\) --" nil t)) | |
| 576 | (setq from (match-string 1))))) | |
| 577 | (insert "From: " "clari@clari.net (" (or from "unknown") ")" | |
| 578 | "\nSubject: " (or subject "(no subject)") "\n"))) | |
| 579 | ||
| b092f83d SZ |
580 | (defun nndoc-exim-bounce-type-p () |
| 581 | (and (re-search-forward "^------ This is a copy of the message, including all the headers. ------" nil t) | |
| 582 | t)) | |
| 583 | ||
| 584 | (defun nndoc-exim-bounce-body-end-function () | |
| 585 | (goto-char (point-max))) | |
| 586 | ||
| 16409b0b | 587 | |
| eec82323 LMI |
588 | (defun nndoc-mime-digest-type-p () |
| 589 | (let ((case-fold-search t) | |
| 590 | boundary-id b-delimiter entry) | |
| 591 | (when (and | |
| 592 | (re-search-forward | |
| 593 | (concat "^Content-Type: *multipart/digest;[ \t\n]*[ \t]" | |
| 6748645f | 594 | "boundary=\"?\\([^\"\n]*[^\" \t\n]\\)") |
| eec82323 LMI |
595 | nil t) |
| 596 | (match-beginning 1)) | |
| 597 | (setq boundary-id (match-string 1) | |
| 16409b0b | 598 | b-delimiter (concat "\n--" boundary-id "[ \t]*$")) |
| eec82323 LMI |
599 | (setq entry (assq 'mime-digest nndoc-type-alist)) |
| 600 | (setcdr entry | |
| 601 | (list | |
| 16409b0b | 602 | (cons 'head-begin "^ ?\n") |
| eec82323 LMI |
603 | (cons 'head-end "^ ?$") |
| 604 | (cons 'body-begin "^ ?\n") | |
| 605 | (cons 'article-begin b-delimiter) | |
| 606 | (cons 'body-end-function 'nndoc-digest-body-end) | |
| b092f83d | 607 | (cons 'file-end (concat "^--" boundary-id "--[ \t]*$")))) |
| eec82323 LMI |
608 | t))) |
| 609 | ||
| 610 | (defun nndoc-standard-digest-type-p () | |
| 611 | (when (and (re-search-forward (concat "^" (make-string 70 ?-) "\n\n") nil t) | |
| 612 | (re-search-forward | |
| 613 | (concat "\n\n" (make-string 30 ?-) "\n\n") nil t)) | |
| 614 | t)) | |
| 615 | ||
| 616 | (defun nndoc-digest-body-end () | |
| 617 | (and (re-search-forward nndoc-article-begin nil t) | |
| 618 | (goto-char (match-beginning 0)))) | |
| 619 | ||
| 620 | (defun nndoc-slack-digest-type-p () | |
| 621 | 0) | |
| 622 | ||
| 623 | (defun nndoc-lanl-gov-announce-type-p () | |
| 624 | (when (let ((case-fold-search nil)) | |
| 01c52d31 | 625 | (re-search-forward "^\\\\\\\\\n\\(Paper\\( (\\*cross-listing\\*)\\)?: [a-zA-Z-\\.]+/[0-9]+\\|arXiv:\\)" nil t)) |
| eec82323 LMI |
626 | t)) |
| 627 | ||
| 628 | (defun nndoc-transform-lanl-gov-announce (article) | |
| 01c52d31 MB |
629 | (let ((case-fold-search nil)) |
| 630 | (goto-char (point-max)) | |
| 631 | (when (re-search-backward "^\\\\\\\\ +( *\\([^ ]*\\) , *\\([^ ]*\\))" nil t) | |
| 632 | (replace-match "\n\nGet it at \\1 (\\2)" t nil)) | |
| b092f83d | 633 | (goto-char (point-min)) |
| 01c52d31 MB |
634 | (while (re-search-forward "^\\\\\\\\$" nil t) |
| 635 | (replace-match "" t nil)) | |
| 636 | (goto-char (point-min)) | |
| 637 | (when (re-search-forward "^replaced with revised version +\\(.*[^ ]\\) +" nil t) | |
| 638 | (replace-match "Date: \\1 (revised) " t nil)) | |
| 639 | (goto-char (point-min)) | |
| 640 | (unless (re-search-forward "^From" nil t) | |
| b092f83d | 641 | (goto-char (point-min)) |
| 01c52d31 MB |
642 | (when (re-search-forward "^Authors?: \\(.*\\)" nil t) |
| 643 | (goto-char (point-min)) | |
| 644 | (insert "From: " (match-string 1) "\n"))) | |
| 645 | (when (re-search-forward "^arXiv:" nil t) | |
| 646 | (replace-match "Paper: arXiv:" t nil)))) | |
| eec82323 LMI |
647 | |
| 648 | (defun nndoc-generate-lanl-gov-head (article) | |
| 649 | (let ((entry (cdr (assq article nndoc-dissection-alist))) | |
| b092f83d SZ |
650 | (from "<no address given>") |
| 651 | subject date) | |
| eec82323 LMI |
652 | (save-excursion |
| 653 | (set-buffer nndoc-current-buffer) | |
| 654 | (save-restriction | |
| b092f83d SZ |
655 | (narrow-to-region (car entry) (nth 1 entry)) |
| 656 | (goto-char (point-min)) | |
| 01c52d31 MB |
657 | (when (looking-at "^\\(Paper.*: \\|arXiv:\\)\\([0-9a-zA-Z-\\./]+\\)") |
| 658 | (setq subject (concat " (" (match-string 2) ")")) | |
| b092f83d SZ |
659 | (when (re-search-forward "^From: \\(.*\\)" nil t) |
| 660 | (setq from (concat "<" | |
| a1506d29 | 661 | (cadr (funcall gnus-extract-address-components |
| b092f83d SZ |
662 | (match-string 1))) ">"))) |
| 663 | (if (re-search-forward "^Date: +\\([^(]*\\)" nil t) | |
| 664 | (setq date (match-string 1)) | |
| 665 | (when (re-search-forward "^replaced with revised version +\\([^(]*\\)" nil t) | |
| 666 | (setq date (match-string 1)))) | |
| 667 | (when (re-search-forward "^Title: \\([^\f]*\\)\nAuthors?: \\(.*\\)" | |
| 668 | nil t) | |
| 669 | (setq subject (concat (match-string 1) subject)) | |
| 670 | (setq from (concat (match-string 2) " " from)))))) | |
| eec82323 LMI |
671 | (while (and from (string-match "(\[^)\]*)" from)) |
| 672 | (setq from (replace-match "" t t from))) | |
| 673 | (insert "From: " (or from "unknown") | |
| b092f83d SZ |
674 | "\nSubject: " (or subject "(no subject)") "\n") |
| 675 | (if date (insert "Date: " date)))) | |
| eec82323 | 676 | |
| 16409b0b GM |
677 | (defun nndoc-nsmail-type-p () |
| 678 | (when (looking-at "From - ") | |
| 679 | t)) | |
| 680 | ||
| 681 | (defun nndoc-outlook-article-begin () | |
| 682 | (prog1 (re-search-forward "From:\\|Received:" nil t) | |
| 683 | (goto-char (match-beginning 0)))) | |
| 684 | ||
| 685 | (defun nndoc-outlook-type-p () | |
| 686 | ;; FIXME: Is JMF the magic of outlook mailbox? -- ShengHuo. | |
| 687 | (looking-at "JMF")) | |
| 688 | ||
| b092f83d | 689 | (defun nndoc-oe-dbx-type-p () |
| 62dc3ac3 | 690 | (looking-at (mm-string-to-multibyte "\317\255\022\376"))) |
| b092f83d SZ |
691 | |
| 692 | (defun nndoc-read-little-endian () | |
| 693 | (+ (prog1 (char-after) (forward-char 1)) | |
| 694 | (lsh (prog1 (char-after) (forward-char 1)) 8) | |
| 695 | (lsh (prog1 (char-after) (forward-char 1)) 16) | |
| 696 | (lsh (prog1 (char-after) (forward-char 1)) 24))) | |
| 697 | ||
| 698 | (defun nndoc-oe-dbx-decode-block () | |
| 699 | (list | |
| 700 | (nndoc-read-little-endian) ;; this address | |
| 701 | (nndoc-read-little-endian) ;; next address offset | |
| 702 | (nndoc-read-little-endian) ;; blocksize | |
| 703 | (nndoc-read-little-endian))) ;; next address | |
| 704 | ||
| 705 | (defun nndoc-oe-dbx-dissection () | |
| 706 | (let ((i 0) blk p tp) | |
| 707 | (goto-char 60117) ;; 0x0000EAD4+1 | |
| 708 | (setq p (point)) | |
| 709 | (unless (eobp) | |
| 710 | (setq blk (nndoc-oe-dbx-decode-block))) | |
| 711 | (while (and blk (> (car blk) 0) (or (zerop (nth 3 blk)) | |
| 712 | (> (nth 3 blk) p))) | |
| 713 | (push (list (incf i) p nil nil nil 0) nndoc-dissection-alist) | |
| 714 | (while (and (> (car blk) 0) (> (nth 3 blk) p)) | |
| 715 | (goto-char (1+ (nth 3 blk))) | |
| 716 | (setq blk (nndoc-oe-dbx-decode-block))) | |
| 717 | (if (or (<= (car blk) p) | |
| 718 | (<= (nth 1 blk) 0) | |
| 719 | (not (zerop (nth 3 blk)))) | |
| 720 | (setq blk nil) | |
| 721 | (setq tp (+ (car blk) (nth 1 blk) 17)) | |
| 722 | (if (or (<= tp p) (>= tp (point-max))) | |
| 723 | (setq blk nil) | |
| 724 | (goto-char tp) | |
| 725 | (setq p tp | |
| 726 | blk (nndoc-oe-dbx-decode-block))))))) | |
| 727 | ||
| 728 | (defun nndoc-oe-dbx-generate-article (article &optional head) | |
| 729 | (let ((entry (cdr (assq article nndoc-dissection-alist))) | |
| 730 | (cur (current-buffer)) | |
| 731 | (begin (point)) | |
| 732 | blk p) | |
| 733 | (with-current-buffer nndoc-current-buffer | |
| 734 | (setq p (car entry)) | |
| 735 | (while (> p (point-min)) | |
| 736 | (goto-char p) | |
| 737 | (setq blk (nndoc-oe-dbx-decode-block)) | |
| 738 | (setq p (point)) | |
| 739 | (with-current-buffer cur | |
| 740 | (insert-buffer-substring nndoc-current-buffer p (+ p (nth 2 blk)))) | |
| 741 | (setq p (1+ (nth 3 blk))))) | |
| 742 | (goto-char begin) | |
| 743 | (while (re-search-forward "\r$" nil t) | |
| 744 | (delete-backward-char 1)) | |
| 745 | (when head | |
| 746 | (goto-char begin) | |
| 747 | (when (search-forward "\n\n" nil t) | |
| 748 | (setcar (cddddr entry) (count-lines (point) (point-max))) | |
| 749 | (delete-region (1- (point)) (point-max)))) | |
| 750 | t)) | |
| 751 | ||
| 752 | (defun nndoc-oe-dbx-generate-head (article) | |
| 753 | (nndoc-oe-dbx-generate-article article 'head)) | |
| 754 | ||
| 755 | (defun nndoc-mail-in-mail-type-p () | |
| 756 | (let (found) | |
| 757 | (save-excursion | |
| 758 | (catch 'done | |
| 759 | (while (re-search-forward "\n\n[-A-Za-z0-9]+:" nil t) | |
| 760 | (setq found 0) | |
| 761 | (forward-line) | |
| 762 | (while (looking-at "[ \t]\\|[-A-Za-z0-9]+:") | |
| 763 | (if (looking-at "[-A-Za-z0-9]+:") | |
| 764 | (setq found (1+ found))) | |
| 765 | (forward-line)) | |
| 766 | (if (and (> found 0) (looking-at "\n")) | |
| 767 | (throw 'done 9999))) | |
| 768 | nil)))) | |
| 769 | ||
| 770 | (defun nndoc-mail-in-mail-article-begin () | |
| 771 | (let (point found) | |
| 772 | (if (catch 'done | |
| 773 | (while (re-search-forward "\n\n\\([-A-Za-z0-9]+:\\)" nil t) | |
| 774 | (setq found 0) | |
| 775 | (setq point (match-beginning 1)) | |
| 776 | (forward-line) | |
| 777 | (while (looking-at "[ \t]\\|[-A-Za-z0-9]+:") | |
| 778 | (if (looking-at "[-A-Za-z0-9]+:") | |
| 779 | (setq found (1+ found))) | |
| 780 | (forward-line)) | |
| 781 | (if (and (> found 0) (looking-at "\n")) | |
| 782 | (throw 'done t))) | |
| 783 | nil) | |
| 784 | (goto-char point)))) | |
| 785 | ||
| 6748645f LMI |
786 | (deffoo nndoc-request-accept-article (group &optional server last) |
| 787 | nil) | |
| 788 | ||
| eec82323 LMI |
789 | ;;; |
| 790 | ;;; Functions for dissecting the documents | |
| 791 | ;;; | |
| 792 | ||
| 793 | (defun nndoc-search (regexp) | |
| 794 | (prog1 | |
| 795 | (re-search-forward regexp nil t) | |
| 796 | (beginning-of-line))) | |
| 797 | ||
| 798 | (defun nndoc-dissect-buffer () | |
| 799 | "Go through the document and partition it into heads/bodies/articles." | |
| 800 | (let ((i 0) | |
| 801 | (first t) | |
| 23f87bed | 802 | art-begin head-begin head-end body-begin body-end) |
| eec82323 LMI |
803 | (setq nndoc-dissection-alist nil) |
| 804 | (save-excursion | |
| 805 | (set-buffer nndoc-current-buffer) | |
| 806 | (goto-char (point-min)) | |
| 16409b0b GM |
807 | ;; Remove blank lines. |
| 808 | (while (eq (following-char) ?\n) | |
| 809 | (delete-char 1)) | |
| b092f83d SZ |
810 | (if nndoc-dissection-function |
| 811 | (funcall nndoc-dissection-function) | |
| 812 | ;; Find the beginning of the file. | |
| 813 | (when nndoc-file-begin | |
| 814 | (nndoc-search nndoc-file-begin)) | |
| 815 | ;; Go through the file. | |
| 816 | (while (if (and first nndoc-first-article) | |
| 817 | (nndoc-search nndoc-first-article) | |
| 23f87bed MB |
818 | (if art-begin |
| 819 | (goto-char art-begin) | |
| 820 | (nndoc-article-begin))) | |
| 821 | (setq first nil | |
| 822 | art-begin nil) | |
| b092f83d SZ |
823 | (cond (nndoc-head-begin-function |
| 824 | (funcall nndoc-head-begin-function)) | |
| 825 | (nndoc-head-begin | |
| 826 | (nndoc-search nndoc-head-begin))) | |
| 827 | (if (or (eobp) | |
| 828 | (and nndoc-file-end | |
| 829 | (looking-at nndoc-file-end))) | |
| 830 | (goto-char (point-max)) | |
| 831 | (setq head-begin (point)) | |
| 832 | (nndoc-search (or nndoc-head-end "^$")) | |
| 833 | (setq head-end (point)) | |
| 834 | (if nndoc-body-begin-function | |
| 835 | (funcall nndoc-body-begin-function) | |
| 836 | (nndoc-search (or nndoc-body-begin "^\n"))) | |
| 837 | (setq body-begin (point)) | |
| 838 | (or (and nndoc-body-end-function | |
| 839 | (funcall nndoc-body-end-function)) | |
| 840 | (and nndoc-body-end | |
| 841 | (nndoc-search nndoc-body-end)) | |
| 23f87bed MB |
842 | (and (nndoc-article-begin) |
| 843 | (setq art-begin (point))) | |
| b092f83d SZ |
844 | (progn |
| 845 | (goto-char (point-max)) | |
| 846 | (when nndoc-file-end | |
| 847 | (and (re-search-backward nndoc-file-end nil t) | |
| 848 | (beginning-of-line))))) | |
| 849 | (setq body-end (point)) | |
| 850 | (push (list (incf i) head-begin head-end body-begin body-end | |
| 851 | (count-lines body-begin body-end)) | |
| 852 | nndoc-dissection-alist))))))) | |
| eec82323 LMI |
853 | |
| 854 | (defun nndoc-article-begin () | |
| 855 | (if nndoc-article-begin-function | |
| 856 | (funcall nndoc-article-begin-function) | |
| 857 | (ignore-errors | |
| 858 | (nndoc-search nndoc-article-begin)))) | |
| 859 | ||
| 860 | (defun nndoc-unquote-dashes () | |
| 861 | "Unquote quoted non-separators in digests." | |
| 862 | (while (re-search-forward "^- -"nil t) | |
| 863 | (replace-match "-" t t))) | |
| 864 | ||
| 6748645f LMI |
865 | ;; Against compiler warnings. |
| 866 | (defvar nndoc-mime-split-ordinal) | |
| 867 | ||
| 868 | (defun nndoc-dissect-mime-parts () | |
| 869 | "Go through a MIME composite article and partition it into sub-articles. | |
| 870 | When a MIME entity contains sub-entities, dissection produces one article for | |
| 871 | the header of this entity, and one article per sub-entity." | |
| 872 | (setq nndoc-dissection-alist nil | |
| 873 | nndoc-mime-split-ordinal 0) | |
| 874 | (save-excursion | |
| 875 | (set-buffer nndoc-current-buffer) | |
| 16409b0b GM |
876 | (nndoc-dissect-mime-parts-sub (point-min) (point-max) nil nil nil))) |
| 877 | ||
| 878 | (defun nndoc-dissect-mime-parts-sub (head-begin body-end article-insert | |
| 879 | position parent) | |
| 880 | "Dissect an entity, within a composite MIME message. | |
| 881 | The complete message or MIME entity extends from HEAD-BEGIN to BODY-END. | |
| 882 | ARTICLE-INSERT should be added at beginning for generating a full article. | |
| 6748645f LMI |
883 | The string POSITION holds a dotted decimal representation of the article |
| 884 | position in the hierarchical structure, it is nil for the outer entity. | |
| 16409b0b GM |
885 | PARENT is the message-ID of the parent summary line, or nil for none." |
| 886 | (let ((case-fold-search t) | |
| 887 | (message-id (nnmail-message-id)) | |
| 888 | head-end body-begin summary-insert message-rfc822 multipart-any | |
| 889 | subject content-type type subtype boundary-regexp) | |
| 890 | ;; Gracefully handle a missing body. | |
| 891 | (goto-char head-begin) | |
| 2e36fdce DL |
892 | (if (or (and (eq (char-after) ?\n) (or (forward-char 1) t)) |
| 893 | (search-forward "\n\n" body-end t)) | |
| 16409b0b GM |
894 | (setq head-end (1- (point)) |
| 895 | body-begin (point)) | |
| 896 | (setq head-end body-end | |
| 897 | body-begin body-end)) | |
| 898 | (narrow-to-region head-begin head-end) | |
| 899 | ;; Save MIME attributes. | |
| 900 | (goto-char head-begin) | |
| 901 | (setq content-type (message-fetch-field "Content-Type")) | |
| 902 | (when content-type | |
| 903 | (when (string-match | |
| 904 | "^ *\\([^ \t\n/;]+\\)/\\([^ \t\n/;]+\\)" content-type) | |
| 905 | (setq type (downcase (match-string 1 content-type)) | |
| 906 | subtype (downcase (match-string 2 content-type)) | |
| 907 | message-rfc822 (and (string= type "message") | |
| 908 | (string= subtype "rfc822")) | |
| 909 | multipart-any (string= type "multipart"))) | |
| 910 | (when (string-match ";[ \t\n]*name=\\([^ \t\n;]+\\)" content-type) | |
| 911 | (setq subject (match-string 1 content-type))) | |
| 912 | (when (string-match "boundary=\"?\\([^\"\n]*[^\" \t\n]\\)" content-type) | |
| 913 | (setq boundary-regexp (concat "^--" | |
| 914 | (regexp-quote | |
| 915 | (match-string 1 content-type)) | |
| 916 | "\\(--\\)?[ \t]*\n")))) | |
| 917 | (unless subject | |
| 918 | (when (or multipart-any (not article-insert)) | |
| 919 | (setq subject (message-fetch-field "Subject")))) | |
| 920 | (unless type | |
| 921 | (setq type "text" | |
| 922 | subtype "plain")) | |
| 923 | ;; Prepare the article and summary inserts. | |
| 924 | (unless article-insert | |
| 23f87bed | 925 | (setq article-insert (buffer-string) |
| 16409b0b | 926 | head-end head-begin)) |
| b092f83d SZ |
927 | ;; Fix MIME-Version |
| 928 | (unless (string-match "MIME-Version:" article-insert) | |
| 929 | (setq article-insert | |
| 930 | (concat article-insert "MIME-Version: 1.0\n"))) | |
| 16409b0b GM |
931 | (setq summary-insert article-insert) |
| 932 | ;; - summary Subject. | |
| 933 | (setq summary-insert | |
| 934 | (let ((line (concat "Subject: <" position | |
| 935 | (and position multipart-any ".") | |
| 936 | (and multipart-any "*") | |
| 937 | (and (or position multipart-any) " ") | |
| 938 | (cond ((string= subtype "plain") type) | |
| 939 | ((string= subtype "basic") type) | |
| 940 | (t subtype)) | |
| 941 | ">" | |
| 942 | (and subject " ") | |
| 943 | subject | |
| 944 | "\n"))) | |
| 945 | (if (string-match "Subject:.*\n\\([ \t].*\n\\)*" summary-insert) | |
| 946 | (replace-match line t t summary-insert) | |
| 947 | (concat summary-insert line)))) | |
| 948 | ;; - summary Message-ID. | |
| 949 | (setq summary-insert | |
| 950 | (let ((line (concat "Message-ID: " message-id "\n"))) | |
| 951 | (if (string-match "Message-ID:.*\n\\([ \t].*\n\\)*" summary-insert) | |
| 952 | (replace-match line t t summary-insert) | |
| 953 | (concat summary-insert line)))) | |
| 954 | ;; - summary References. | |
| 955 | (when parent | |
| 956 | (setq summary-insert | |
| 957 | (let ((line (concat "References: " parent "\n"))) | |
| 958 | (if (string-match "References:.*\n\\([ \t].*\n\\)*" | |
| 959 | summary-insert) | |
| 960 | (replace-match line t t summary-insert) | |
| 961 | (concat summary-insert line))))) | |
| 962 | ;; Generate dissection information for this entity. | |
| 963 | (push (list (incf nndoc-mime-split-ordinal) | |
| 964 | head-begin head-end body-begin body-end | |
| 965 | (count-lines body-begin body-end) | |
| 966 | article-insert summary-insert) | |
| 967 | nndoc-dissection-alist) | |
| 968 | ;; Recurse for all sub-entities, if any. | |
| 969 | (widen) | |
| 970 | (cond | |
| 971 | (message-rfc822 | |
| 972 | (save-excursion | |
| 973 | (nndoc-dissect-mime-parts-sub body-begin body-end nil | |
| 974 | position message-id))) | |
| 975 | ((and multipart-any boundary-regexp) | |
| 976 | (let ((part-counter 0) | |
| 977 | part-begin part-end eof-flag) | |
| 978 | (while (string-match "\ | |
| 979 | ^\\(Lines\\|Content-\\(Type\\|Transfer-Encoding\\|Disposition\\)\\):.*\n\\([ \t].*\n\\)*" | |
| 980 | article-insert) | |
| 981 | (setq article-insert (replace-match "" t t article-insert))) | |
| 982 | (let ((case-fold-search nil)) | |
| 983 | (goto-char body-begin) | |
| 984 | (setq eof-flag (not (re-search-forward boundary-regexp body-end t))) | |
| 6748645f | 985 | (while (not eof-flag) |
| 16409b0b GM |
986 | (setq part-begin (point)) |
| 987 | (cond ((re-search-forward boundary-regexp body-end t) | |
| 6748645f LMI |
988 | (or (not (match-string 1)) |
| 989 | (string= (match-string 1) "") | |
| 990 | (setq eof-flag t)) | |
| 991 | (forward-line -1) | |
| 16409b0b | 992 | (setq part-end (point)) |
| 6748645f | 993 | (forward-line 1)) |
| 16409b0b | 994 | (t (setq part-end body-end |
| 6748645f | 995 | eof-flag t))) |
| 16409b0b GM |
996 | (save-excursion |
| 997 | (nndoc-dissect-mime-parts-sub | |
| 998 | part-begin part-end article-insert | |
| 999 | (concat position | |
| 1000 | (and position ".") | |
| 1001 | (format "%d" (incf part-counter))) | |
| 1002 | message-id))))))))) | |
| 6748645f | 1003 | |
| eec82323 LMI |
1004 | ;;;###autoload |
| 1005 | (defun nndoc-add-type (definition &optional position) | |
| 1006 | "Add document DEFINITION to the list of nndoc document definitions. | |
| 1007 | If POSITION is nil or `last', the definition will be added | |
| 1008 | as the last checked definition, if t or `first', add as the | |
| 1009 | first definition, and if any other symbol, add after that | |
| 1010 | symbol in the alist." | |
| 1011 | ;; First remove any old instances. | |
| 6748645f | 1012 | (gnus-pull (car definition) nndoc-type-alist) |
| eec82323 LMI |
1013 | ;; Then enter the new definition in the proper place. |
| 1014 | (cond | |
| 1015 | ((or (null position) (eq position 'last)) | |
| 1016 | (setq nndoc-type-alist (nconc nndoc-type-alist (list definition)))) | |
| 1017 | ((or (eq position t) (eq position 'first)) | |
| 1018 | (push definition nndoc-type-alist)) | |
| 1019 | (t | |
| 1020 | (let ((list (memq (assq position nndoc-type-alist) | |
| 1021 | nndoc-type-alist))) | |
| 1022 | (unless list | |
| 1023 | (error "No such position: %s" position)) | |
| 1024 | (setcdr list (cons definition (cdr list))))))) | |
| 1025 | ||
| 1026 | (provide 'nndoc) | |
| 1027 | ||
| 62dc3ac3 | 1028 | ;; arch-tag: f5c2970e-0387-47ac-a0b3-6cc317dffabe |
| eec82323 | 1029 | ;;; nndoc.el ends here |