code.delx.au - gnu-emacs/blob - lisp/gnus/gnus-uu.el

   1 ;;; gnus-uu.el --- extract (uu)encoded files in Gnus
   2 ;; Copyright (C) 1985,86,87,93,94,95,96,97 Free Software Foundation, Inc.
   3
   4 ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
   5 ;; Created: 2 Oct 1993
   6 ;; Keyword: news
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  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
  29 (eval-when-compile (require 'cl))
  30
  31 (require 'gnus)
  32 (require 'gnus-art)
  33 (require 'message)
  34 (require 'gnus-msg)
  35
  36 (defgroup gnus-extract nil
  37   "Extracting encoded files."
  38   :prefix "gnus-uu-"
  39   :group 'gnus)
  40
  41 (defgroup gnus-extract-view nil
  42   "Viewwing extracted files."
  43   :group 'gnus-extract)
  44
  45 (defgroup gnus-extract-archive nil
  46   "Extracting encoded archives."
  47   :group 'gnus-extract)
  48
  49 (defgroup gnus-extract-post nil
  50   "Extracting encoded archives."
  51   :prefix "gnus-uu-post"
  52   :group 'gnus-extract)
  53
  54 ;; Default viewing action rules
  55
  56 (defcustom gnus-uu-default-view-rules
  57   '(("\\.te?xt$\\|\\.doc$\\|read.*me\\|\\.c?$\\|\\.h$\\|\\.bat$\\|\\.asm$\\|makefile" "cat %s | sed s/\r//g")
  58     ("\\.pas$" "cat %s | sed s/\r//g")
  59     ("\\.[1-9]$" "groff -mandoc -Tascii %s | sed s/\b.//g")
  60     ("\\.\\(jpe?g\\|gif\\|tiff?\\|p[pgb]m\\|xwd\\|xbm\\|pcx\\)$" "xv")
  61     ("\\.tga$" "tgatoppm %s | xv -")
  62     ("\\.\\(wav\\|aiff\\|hcom\\|u[blw]\\|s[bfw]\\|voc\\|smp\\)$"
  63      "sox -v .5 %s -t .au -u - > /dev/audio")
  64     ("\\.au$" "cat %s > /dev/audio")
  65     ("\\.midi?$" "playmidi -f")
  66     ("\\.mod$" "str32")
  67     ("\\.ps$" "ghostview")
  68     ("\\.dvi$" "xdvi")
  69     ("\\.html$" "xmosaic")
  70     ("\\.mpe?g$" "mpeg_play")
  71     ("\\.\\(flc\\|fli\\|rle\\|iff\\|pfx\\|avi\\|sme\\|rpza\\|dl\\|qt\\|rsrc\\|mov\\)$" "xanim")
  72     ("\\.\\(tar\\|arj\\|zip\\|zoo\\|arc\\|gz\\|Z\\|lzh\\|ar\\|lha\\)$"
  73      "gnus-uu-archive"))
  74   "Default actions to be taken when the user asks to view a file.
  75 To change the behaviour, you can either edit this variable or set
  76 `gnus-uu-user-view-rules' to something useful.
  77
  78 For example:
  79
  80 To make gnus-uu use 'xli' to display JPEG and GIF files, put the
  81 following in your .emacs file:
  82
  83   (setq gnus-uu-user-view-rules '((\"jpg$\\\\|gif$\" \"xli\")))
  84
  85 Both these variables are lists of lists with two string elements.  The
  86 first string is a regular expression.  If the file name matches this
  87 regular expression, the command in the second string is executed with
  88 the file as an argument.
  89
  90 If the command string contains \"%s\", the file name will be inserted
  91 at that point in the command string.  If there's no \"%s\" in the
  92 command string, the file name will be appended to the command string
  93 before executing.
  94
  95 There are several user variables to tailor the behaviour of gnus-uu to
  96 your needs.  First we have `gnus-uu-user-view-rules', which is the
  97 variable gnus-uu first consults when trying to decide how to view a
  98 file.  If this variable contains no matches, gnus-uu examines the
  99 default rule variable provided in this package.  If gnus-uu finds no
 100 match here, it uses `gnus-uu-user-view-rules-end' to try to make a
 101 match."
 102   :group 'gnus-extract-view
 103   :type '(repeat (group regexp (string :tag "Command"))))
 104
 105 (defcustom gnus-uu-user-view-rules nil
 106   "What actions are to be taken to view a file.
 107 See the documentation on the `gnus-uu-default-view-rules' variable for
 108 details."
 109   :group 'gnus-extract-view
 110   :type '(repeat (group regexp (string :tag "Command"))))
 111
 112 (defcustom gnus-uu-user-view-rules-end
 113   '(("" "file"))
 114   "What actions are to be taken if no rule matched the file name.
 115 See the documentation on the `gnus-uu-default-view-rules' variable for
 116 details."
 117   :group 'gnus-extract-view
 118   :type '(repeat (group regexp (string :tag "Command"))))
 119
 120 ;; Default unpacking commands
 121
 122 (defcustom gnus-uu-default-archive-rules
 123   '(("\\.tar$" "tar xf")
 124     ("\\.zip$" "unzip -o")
 125     ("\\.ar$" "ar x")
 126     ("\\.arj$" "unarj x")
 127     ("\\.zoo$" "zoo -e")
 128     ("\\.\\(lzh\\|lha\\)$" "lha x")
 129     ("\\.Z$" "uncompress")
 130     ("\\.gz$" "gunzip")
 131     ("\\.arc$" "arc -x"))
 132   "See `gnus-uu-user-archive-rules'."
 133   :group 'gnus-extract-archive
 134   :type '(repeat (group regexp (string :tag "Command"))))
 135
 136 (defvar gnus-uu-destructive-archivers
 137   (list "uncompress" "gunzip"))
 138
 139 (defcustom gnus-uu-user-archive-rules nil
 140   "A list that can be set to override the default archive unpacking commands.
 141 To use, for instance, 'untar' to unpack tar files and 'zip -x' to
 142 unpack zip files, say the following:
 143   (setq gnus-uu-user-archive-rules
 144     '((\"\\\\.tar$\" \"untar\")
 145       (\"\\\\.zip$\" \"zip -x\")))"
 146   :group 'gnus-extract-archive
 147   :type '(repeat (group regexp (string :tag "Command"))))
 148
 149 (defcustom gnus-uu-ignore-files-by-name nil
 150   "*A regular expression saying what files should not be viewed based on name.
 151 If, for instance, you want gnus-uu to ignore all .au and .wav files,
 152 you could say something like
 153
 154   (setq gnus-uu-ignore-files-by-name \"\\\\.au$\\\\|\\\\.wav$\")
 155
 156 Note that this variable can be used in conjunction with the
 157 `gnus-uu-ignore-files-by-type' variable."
 158   :group 'gnus-extract
 159   :type '(choice (const :tag "off" nil)
 160                  (regexp :format "%v")))
 161
 162 (defcustom gnus-uu-ignore-files-by-type nil
 163   "*A regular expression saying what files that shouldn't be viewed, based on MIME file type.
 164 If, for instance, you want gnus-uu to ignore all audio files and all mpegs,
 165 you could say something like
 166
 167   (setq gnus-uu-ignore-files-by-type \"audio/\\\\|video/mpeg\")
 168
 169 Note that this variable can be used in conjunction with the
 170 `gnus-uu-ignore-files-by-name' variable."
 171   :group 'gnus-extract
 172   :type '(choice (const :tag "off" nil)
 173                  (regexp :format "%v")))
 174
 175 ;; Pseudo-MIME support
 176
 177 (defconst gnus-uu-ext-to-mime-list
 178   '(("\\.gif$" "image/gif")
 179     ("\\.jpe?g$" "image/jpeg")
 180     ("\\.tiff?$" "image/tiff")
 181     ("\\.xwd$" "image/xwd")
 182     ("\\.pbm$" "image/pbm")
 183     ("\\.pgm$" "image/pgm")
 184     ("\\.ppm$" "image/ppm")
 185     ("\\.xbm$" "image/xbm")
 186     ("\\.pcx$" "image/pcx")
 187     ("\\.tga$" "image/tga")
 188     ("\\.ps$" "image/postscript")
 189     ("\\.fli$" "video/fli")
 190     ("\\.wav$" "audio/wav")
 191     ("\\.aiff$" "audio/aiff")
 192     ("\\.hcom$" "audio/hcom")
 193     ("\\.voc$" "audio/voc")
 194     ("\\.smp$" "audio/smp")
 195     ("\\.mod$" "audio/mod")
 196     ("\\.dvi$" "image/dvi")
 197     ("\\.mpe?g$" "video/mpeg")
 198     ("\\.au$" "audio/basic")
 199     ("\\.\\(te?xt\\|doc\\|c\\|h\\)$" "text/plain")
 200     ("\\.\\(c\\|h\\)$" "text/source")
 201     ("read.*me" "text/plain")
 202     ("\\.html$" "text/html")
 203     ("\\.bat$" "text/bat")
 204     ("\\.[1-6]$" "text/man")
 205     ("\\.flc$" "video/flc")
 206     ("\\.rle$" "video/rle")
 207     ("\\.pfx$" "video/pfx")
 208     ("\\.avi$" "video/avi")
 209     ("\\.sme$" "video/sme")
 210     ("\\.rpza$" "video/prza")
 211     ("\\.dl$" "video/dl")
 212     ("\\.qt$" "video/qt")
 213     ("\\.rsrc$" "video/rsrc")
 214     ("\\..*$" "unknown/unknown")))
 215
 216 ;; Various variables users may set
 217
 218 (defcustom gnus-uu-tmp-dir "/tmp/"
 219   "*Variable saying where gnus-uu is to do its work.
 220 Default is \"/tmp/\"."
 221   :group 'gnus-extract
 222   :type 'directory)
 223
 224 (defcustom gnus-uu-do-not-unpack-archives nil
 225   "*Non-nil means that gnus-uu won't peek inside archives looking for files to display.
 226 Default is nil."
 227   :group 'gnus-extract-archive
 228   :type 'boolean)
 229
 230 (defcustom gnus-uu-ignore-default-view-rules nil
 231   "*Non-nil means that gnus-uu will ignore the default viewing rules.
 232 Only the user viewing rules will be consulted.  Default is nil."
 233   :group 'gnus-extract-view
 234   :type 'boolean)
 235
 236 (defcustom gnus-uu-grabbed-file-functions nil
 237   "Functions run on each file after successful decoding.
 238 They will be called with the name of the file as the argument.
 239 Likely functions you can use in this list are `gnus-uu-grab-view'
 240 and `gnus-uu-grab-move'."
 241   :group 'gnus-extract
 242   :options '(gnus-uu-grab-view gnus-uu-grab-move)
 243   :type 'hook)
 244
 245 (defcustom gnus-uu-ignore-default-archive-rules nil
 246   "*Non-nil means that gnus-uu will ignore the default archive unpacking commands.
 247 Only the user unpacking commands will be consulted.  Default is nil."
 248   :group 'gnus-extract-archive
 249   :type 'boolean)
 250
 251 (defcustom gnus-uu-kill-carriage-return t
 252   "*Non-nil means that gnus-uu will strip all carriage returns from articles.
 253 Default is t."
 254   :group 'gnus-extract
 255   :type 'boolean)
 256
 257 (defcustom gnus-uu-view-with-metamail nil
 258   "*Non-nil means that files will be viewed with metamail.
 259 The gnus-uu viewing functions will be ignored and gnus-uu will try
 260 to guess at a content-type based on file name suffixes.  Default
 261 it nil."
 262   :group 'gnus-extract
 263   :type 'boolean)
 264
 265 (defcustom gnus-uu-unmark-articles-not-decoded nil
 266   "*Non-nil means that gnus-uu will mark articles that were unsuccessfully decoded as unread.
 267 Default is nil."
 268   :group 'gnus-extract
 269   :type 'boolean)
 270
 271 (defcustom gnus-uu-correct-stripped-uucode nil
 272   "*Non-nil means that gnus-uu will *try* to fix uuencoded files that have had trailing spaces deleted.
 273 Default is nil."
 274   :group 'gnus-extract
 275   :type 'boolean)
 276
 277 (defcustom gnus-uu-save-in-digest nil
 278   "*Non-nil means that gnus-uu, when asked to save without decoding, will save in digests.
 279 If this variable is nil, gnus-uu will just save everything in a
 280 file without any embellishments.  The digesting almost conforms to RFC1153 -
 281 no easy way to specify any meaningful volume and issue numbers were found,
 282 so I simply dropped them."
 283   :group 'gnus-extract
 284   :type 'boolean)
 285
 286 (defcustom gnus-uu-digest-headers
 287   '("^Date:" "^From:" "^To:" "^Cc:" "^Subject:" "^Message-ID:" "^Keywords:"
 288     "^Summary:" "^References:")
 289   "List of regexps to match headers included in digested messages.
 290 The headers will be included in the sequence they are matched."
 291   :group 'gnus-extract
 292   :type '(repeat regexp))
 293
 294 (defcustom gnus-uu-save-separate-articles nil
 295   "*Non-nil means that gnus-uu will save articles in separate files."
 296   :group 'gnus-extract
 297   :type 'boolean)
 298
 299 (defcustom gnus-uu-be-dangerous 'ask
 300   "*Specifies what to do if unusual situations arise during decoding.
 301 If nil, be as conservative as possible.  If t, ignore things that
 302 didn't work, and overwrite existing files.  Otherwise, ask each time."
 303   :group 'gnus-extract
 304   :type '(choice (const :tag "conservative" nil)
 305                  (const :tag "ask" ask)
 306                  (const :tag "liberal" t)))
 307
 308 ;; Internal variables
 309
 310 (defvar gnus-uu-saved-article-name nil)
 311
 312 (defconst gnus-uu-begin-string "^begin[ \t]+[0-7][0-7][0-7][ \t]+\\(.*\\)$")
 313 (defconst gnus-uu-end-string "^end[ \t]*$")
 314
 315 (defconst gnus-uu-body-line "^M")
 316 (let ((i 61))
 317   (while (> (setq i (1- i)) 0)
 318     (setq gnus-uu-body-line (concat gnus-uu-body-line "[^a-z]")))
 319   (setq gnus-uu-body-line (concat gnus-uu-body-line ".?$")))
 320
 321 ;"^M.............................................................?$"
 322
 323 (defconst gnus-uu-shar-begin-string "^#! */bin/sh")
 324
 325 (defvar gnus-uu-shar-file-name nil)
 326 (defconst gnus-uu-shar-name-marker "begin [0-7][0-7][0-7][ \t]+\\(\\(\\w\\|\\.\\)*\\b\\)")
 327
 328 (defconst gnus-uu-postscript-begin-string "^%!PS-")
 329 (defconst gnus-uu-postscript-end-string "^%%EOF$")
 330
 331 (defvar gnus-uu-file-name nil)
 332 (defconst gnus-uu-uudecode-process nil)
 333 (defvar gnus-uu-binhex-article-name nil)
 334
 335 (defvar gnus-uu-work-dir nil)
 336
 337 (defconst gnus-uu-output-buffer-name " *Gnus UU Output*")
 338
 339 (defvar gnus-uu-default-dir gnus-article-save-directory)
 340 (defvar gnus-uu-digest-from-subject nil)
 341
 342 ;; Keymaps
 343
 344 (gnus-define-keys (gnus-uu-mark-map "P" gnus-summary-mark-map)
 345   "p" gnus-summary-mark-as-processable
 346   "u" gnus-summary-unmark-as-processable
 347   "U" gnus-summary-unmark-all-processable
 348   "v" gnus-uu-mark-over
 349   "s" gnus-uu-mark-series
 350   "r" gnus-uu-mark-region
 351   "R" gnus-uu-mark-by-regexp
 352   "t" gnus-uu-mark-thread
 353   "T" gnus-uu-unmark-thread
 354   "a" gnus-uu-mark-all
 355   "b" gnus-uu-mark-buffer
 356   "S" gnus-uu-mark-sparse
 357   "k" gnus-summary-kill-process-mark
 358   "y" gnus-summary-yank-process-mark
 359   "w" gnus-summary-save-process-mark
 360   "i" gnus-uu-invert-processable)
 361
 362 (gnus-define-keys (gnus-uu-extract-map "X" gnus-summary-mode-map)
 363   ;;"x" gnus-uu-extract-any
 364   ;;"m" gnus-uu-extract-mime
 365   "u" gnus-uu-decode-uu
 366   "U" gnus-uu-decode-uu-and-save
 367   "s" gnus-uu-decode-unshar
 368   "S" gnus-uu-decode-unshar-and-save
 369   "o" gnus-uu-decode-save
 370   "O" gnus-uu-decode-save
 371   "b" gnus-uu-decode-binhex
 372   "B" gnus-uu-decode-binhex
 373   "p" gnus-uu-decode-postscript
 374   "P" gnus-uu-decode-postscript-and-save)
 375
 376 (gnus-define-keys
 377  (gnus-uu-extract-view-map "v" gnus-uu-extract-map)
 378  "u" gnus-uu-decode-uu-view
 379  "U" gnus-uu-decode-uu-and-save-view
 380  "s" gnus-uu-decode-unshar-view
 381  "S" gnus-uu-decode-unshar-and-save-view
 382  "o" gnus-uu-decode-save-view
 383  "O" gnus-uu-decode-save-view
 384  "b" gnus-uu-decode-binhex-view
 385  "B" gnus-uu-decode-binhex-view
 386  "p" gnus-uu-decode-postscript-view
 387  "P" gnus-uu-decode-postscript-and-save-view)
 388
 389
 390 ;; Commands.
 391
 392 (defun gnus-uu-decode-uu (&optional n)
 393   "Uudecodes the current article."
 394   (interactive "P")
 395   (gnus-uu-decode-with-method 'gnus-uu-uustrip-article n))
 396
 397 (defun gnus-uu-decode-uu-and-save (n dir)
 398   "Decodes and saves the resulting file."
 399   (interactive
 400    (list current-prefix-arg
 401          (file-name-as-directory
 402           (read-file-name "Uudecode and save in dir: "
 403                           gnus-uu-default-dir
 404                           gnus-uu-default-dir t))))
 405   (gnus-uu-decode-with-method 'gnus-uu-uustrip-article n dir nil nil t))
 406
 407 (defun gnus-uu-decode-unshar (&optional n)
 408   "Unshars the current article."
 409   (interactive "P")
 410   (gnus-uu-decode-with-method 'gnus-uu-unshar-article n nil nil 'scan t))
 411
 412 (defun gnus-uu-decode-unshar-and-save (n dir)
 413   "Unshars and saves the current article."
 414   (interactive
 415    (list current-prefix-arg
 416          (file-name-as-directory
 417           (read-file-name "Unshar and save in dir: "
 418                           gnus-uu-default-dir
 419                           gnus-uu-default-dir t))))
 420   (gnus-uu-decode-with-method 'gnus-uu-unshar-article n dir nil 'scan t))
 421
 422 (defun gnus-uu-decode-save (n file)
 423   "Saves the current article."
 424   (interactive
 425    (list current-prefix-arg
 426          (read-file-name
 427           (if gnus-uu-save-separate-articles
 428               "Save articles is dir: "
 429             "Save articles in file: ")
 430           gnus-uu-default-dir
 431           gnus-uu-default-dir)))
 432   (setq gnus-uu-saved-article-name file)
 433   (gnus-uu-decode-with-method 'gnus-uu-save-article n nil t))
 434
 435 (defun gnus-uu-decode-binhex (n dir)
 436   "Unbinhexes the current article."
 437   (interactive
 438    (list current-prefix-arg
 439          (file-name-as-directory
 440           (read-file-name "Unbinhex and save in dir: "
 441                           gnus-uu-default-dir
 442                           gnus-uu-default-dir))))
 443   (setq gnus-uu-binhex-article-name
 444         (make-temp-name (concat gnus-uu-work-dir "binhex")))
 445   (gnus-uu-decode-with-method 'gnus-uu-binhex-article n dir))
 446
 447 (defun gnus-uu-decode-uu-view (&optional n)
 448   "Uudecodes and views the current article."
 449   (interactive "P")
 450   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 451     (gnus-uu-decode-uu n)))
 452
 453 (defun gnus-uu-decode-uu-and-save-view (n dir)
 454   "Decodes, views and saves the resulting file."
 455   (interactive
 456    (list current-prefix-arg
 457          (read-file-name "Uudecode, view and save in dir: "
 458                          gnus-uu-default-dir
 459                          gnus-uu-default-dir t)))
 460   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 461     (gnus-uu-decode-uu-and-save n dir)))
 462
 463 (defun gnus-uu-decode-unshar-view (&optional n)
 464   "Unshars and views the current article."
 465   (interactive "P")
 466   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 467     (gnus-uu-decode-unshar n)))
 468
 469 (defun gnus-uu-decode-unshar-and-save-view (n dir)
 470   "Unshars and saves the current article."
 471   (interactive
 472    (list current-prefix-arg
 473          (read-file-name "Unshar, view and save in dir: "
 474                          gnus-uu-default-dir
 475                          gnus-uu-default-dir t)))
 476   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 477     (gnus-uu-decode-unshar-and-save n dir)))
 478
 479 (defun gnus-uu-decode-save-view (n file)
 480   "Saves and views the current article."
 481   (interactive
 482    (list current-prefix-arg
 483          (read-file-name  (if gnus-uu-save-separate-articles
 484                               "Save articles is dir: "
 485                             "Save articles in file: ")
 486                           gnus-uu-default-dir gnus-uu-default-dir)))
 487   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 488     (gnus-uu-decode-save n file)))
 489
 490 (defun gnus-uu-decode-binhex-view (n file)
 491   "Unbinhexes and views the current article."
 492   (interactive
 493    (list current-prefix-arg
 494          (read-file-name "Unbinhex, view and save in dir: "
 495                          gnus-uu-default-dir gnus-uu-default-dir)))
 496   (setq gnus-uu-binhex-article-name
 497         (make-temp-name (concat gnus-uu-work-dir "binhex")))
 498   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 499     (gnus-uu-decode-binhex n file)))
 500
 501
 502 ;; Digest and forward articles
 503
 504 (defun gnus-uu-digest-mail-forward (&optional n post)
 505   "Digests and forwards all articles in this series."
 506   (interactive "P")
 507   (let ((gnus-uu-save-in-digest t)
 508         (file (make-temp-name (nnheader-concat gnus-uu-tmp-dir "forward")))
 509         buf subject from newsgroups)
 510     (gnus-setup-message 'forward
 511       (setq gnus-uu-digest-from-subject nil)
 512       (gnus-uu-decode-save n file)
 513       (setq buf (switch-to-buffer (get-buffer-create " *gnus-uu-forward*")))
 514       (gnus-add-current-to-buffer-list)
 515       (erase-buffer)
 516       (insert-file file)
 517       (let ((fs gnus-uu-digest-from-subject))
 518         (when fs
 519           (setq from (caar fs)
 520                 subject (gnus-simplify-subject-fuzzy (cdar fs))
 521                 fs (cdr fs))
 522           (while (and fs (or from subject))
 523             (when from
 524               (unless (string= from (caar fs))
 525                 (setq from nil)))
 526             (when subject
 527               (unless (string= (gnus-simplify-subject-fuzzy (cdar fs))
 528                                subject)
 529                 (setq subject nil)))
 530             (setq fs (cdr fs))))
 531         (unless subject
 532           (setq subject "Digested Articles"))
 533         (unless from
 534           (setq from
 535                 (if (gnus-news-group-p gnus-newsgroup-name)
 536                     gnus-newsgroup-name
 537                   "Various"))))
 538       (goto-char (point-min))
 539       (when (re-search-forward "^Subject: ")
 540         (delete-region (point) (gnus-point-at-eol))
 541         (insert subject))
 542       (goto-char (point-min))
 543       (when (re-search-forward "^From: ")
 544         (delete-region (point) (gnus-point-at-eol))
 545         (insert from))
 546       (message-forward post))
 547     (delete-file file)
 548     (kill-buffer buf)
 549     (setq gnus-uu-digest-from-subject nil)))
 550
 551 (defun gnus-uu-digest-post-forward (&optional n)
 552   "Digest and forward to a newsgroup."
 553   (interactive "P")
 554   (gnus-uu-digest-mail-forward n t))
 555
 556 ;; Process marking.
 557
 558 (defun gnus-uu-mark-by-regexp (regexp &optional unmark)
 559   "Ask for a regular expression and set the process mark on all articles that match."
 560   (interactive (list (read-from-minibuffer "Mark (regexp): ")))
 561   (gnus-set-global-variables)
 562   (let ((articles (gnus-uu-find-articles-matching regexp)))
 563     (while articles
 564       (if unmark
 565           (gnus-summary-remove-process-mark (pop articles))
 566         (gnus-summary-set-process-mark (pop articles))))
 567     (message ""))
 568   (gnus-summary-position-point))
 569
 570 (defun gnus-uu-unmark-by-regexp (regexp &optional unmark)
 571   "Ask for a regular expression and remove the process mark on all articles that match."
 572   (interactive (list (read-from-minibuffer "Mark (regexp): ")))
 573   (gnus-uu-mark-by-regexp regexp t))
 574
 575 (defun gnus-uu-mark-series ()
 576   "Mark the current series with the process mark."
 577   (interactive)
 578   (gnus-set-global-variables)
 579   (let ((articles (gnus-uu-find-articles-matching)))
 580     (while articles
 581       (gnus-summary-set-process-mark (car articles))
 582       (setq articles (cdr articles)))
 583     (message ""))
 584   (gnus-summary-position-point))
 585
 586 (defun gnus-uu-mark-region (beg end &optional unmark)
 587   "Set the process mark on all articles between point and mark."
 588   (interactive "r")
 589   (gnus-set-global-variables)
 590   (save-excursion
 591     (goto-char beg)
 592     (while (< (point) end)
 593       (if unmark
 594           (gnus-summary-remove-process-mark (gnus-summary-article-number))
 595         (gnus-summary-set-process-mark (gnus-summary-article-number)))
 596       (forward-line 1)))
 597   (gnus-summary-position-point))
 598
 599 (defun gnus-uu-unmark-region (beg end)
 600   "Remove the process mark from all articles between point and mark."
 601   (interactive "r")
 602   (gnus-uu-mark-region beg end t))
 603
 604 (defun gnus-uu-mark-buffer ()
 605   "Set the process mark on all articles in the buffer."
 606   (interactive)
 607   (gnus-uu-mark-region (point-min) (point-max)))
 608
 609 (defun gnus-uu-unmark-buffer ()
 610   "Remove the process mark on all articles in the buffer."
 611   (interactive)
 612   (gnus-uu-mark-region (point-min) (point-max) t))
 613
 614 (defun gnus-uu-mark-thread ()
 615   "Marks all articles downwards in this thread."
 616   (interactive)
 617   (gnus-set-global-variables)
 618   (let ((level (gnus-summary-thread-level)))
 619     (while (and (gnus-summary-set-process-mark (gnus-summary-article-number))
 620                 (zerop (gnus-summary-next-subject 1))
 621                 (> (gnus-summary-thread-level) level))))
 622   (gnus-summary-position-point))
 623
 624 (defun gnus-uu-unmark-thread ()
 625   "Unmarks all articles downwards in this thread."
 626   (interactive)
 627   (gnus-set-global-variables)
 628   (let ((level (gnus-summary-thread-level)))
 629     (while (and (gnus-summary-remove-process-mark
 630                  (gnus-summary-article-number))
 631                 (zerop (gnus-summary-next-subject 1))
 632                 (> (gnus-summary-thread-level) level))))
 633   (gnus-summary-position-point))
 634
 635 (defun gnus-uu-invert-processable ()
 636   "Invert the list of process-marked articles."
 637   (let ((data gnus-newsgroup-data)
 638         d number)
 639     (save-excursion
 640       (while data
 641         (if (memq (setq number (gnus-data-number (pop data)))
 642                   gnus-newsgroup-processable)
 643             (gnus-summary-remove-process-mark number)
 644           (gnus-summary-set-process-mark number)))))
 645   (gnus-summary-position-point))
 646
 647 (defun gnus-uu-mark-over (&optional score)
 648   "Mark all articles with a score over SCORE (the prefix.)"
 649   (interactive "P")
 650   (let ((score (gnus-score-default score))
 651         (data gnus-newsgroup-data))
 652     (save-excursion
 653       (while data
 654         (when (> (or (cdr (assq (gnus-data-number (car data))
 655                                 gnus-newsgroup-scored))
 656                      gnus-summary-default-score 0)
 657                  score)
 658           (gnus-summary-set-process-mark (caar data)))
 659         (setq data (cdr data))))
 660     (gnus-summary-position-point)))
 661
 662 (defun gnus-uu-mark-sparse ()
 663   "Mark all series that have some articles marked."
 664   (interactive)
 665   (gnus-set-global-variables)
 666   (let ((marked (nreverse gnus-newsgroup-processable))
 667         subject articles total headers)
 668     (unless marked
 669       (error "No articles marked with the process mark"))
 670     (setq gnus-newsgroup-processable nil)
 671     (save-excursion
 672       (while marked
 673         (and (vectorp (setq headers
 674                             (gnus-summary-article-header (car marked))))
 675              (setq subject (mail-header-subject headers)
 676                    articles (gnus-uu-find-articles-matching
 677                              (gnus-uu-reginize-string subject))
 678                    total (nconc total articles)))
 679         (while articles
 680           (gnus-summary-set-process-mark (car articles))
 681           (setcdr marked (delq (car articles) (cdr marked)))
 682           (setq articles (cdr articles)))
 683         (setq marked (cdr marked)))
 684       (setq gnus-newsgroup-processable (nreverse total)))
 685     (gnus-summary-position-point)))
 686
 687 (defun gnus-uu-mark-all ()
 688   "Mark all articles in \"series\" order."
 689   (interactive)
 690   (gnus-set-global-variables)
 691   (setq gnus-newsgroup-processable nil)
 692   (save-excursion
 693     (let ((data gnus-newsgroup-data)
 694           number)
 695       (while data
 696         (when (and (not (memq (setq number (gnus-data-number (car data)))
 697                               gnus-newsgroup-processable))
 698                    (vectorp (gnus-data-header (car data))))
 699           (gnus-summary-goto-subject number)
 700           (gnus-uu-mark-series))
 701         (setq data (cdr data)))))
 702   (gnus-summary-position-point))
 703
 704 ;; All PostScript functions written by Erik Selberg <speed@cs.washington.edu>.
 705
 706 (defun gnus-uu-decode-postscript (&optional n)
 707   "Gets postscript of the current article."
 708   (interactive "P")
 709   (gnus-uu-decode-with-method 'gnus-uu-decode-postscript-article n))
 710
 711 (defun gnus-uu-decode-postscript-view (&optional n)
 712   "Gets and views the current article."
 713   (interactive "P")
 714   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 715     (gnus-uu-decode-postscript n)))
 716
 717 (defun gnus-uu-decode-postscript-and-save (n dir)
 718   "Extracts postscript and saves the current article."
 719   (interactive
 720    (list current-prefix-arg
 721          (file-name-as-directory
 722           (read-file-name "Save in dir: "
 723                           gnus-uu-default-dir
 724                           gnus-uu-default-dir t))))
 725   (gnus-uu-decode-with-method 'gnus-uu-decode-postscript-article
 726                               n dir nil nil t))
 727
 728 (defun gnus-uu-decode-postscript-and-save-view (n dir)
 729   "Decodes, views and saves the resulting file."
 730   (interactive
 731    (list current-prefix-arg
 732          (read-file-name "Where do you want to save the file(s)? "
 733                          gnus-uu-default-dir
 734                          gnus-uu-default-dir t)))
 735   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 736     (gnus-uu-decode-postscript-and-save n dir)))
 737
 738
 739 ;; Internal functions.
 740
 741 (defun gnus-uu-decode-with-method (method n &optional save not-insert
 742                                           scan cdir)
 743   (gnus-uu-initialize scan)
 744   (when save
 745     (setq gnus-uu-default-dir save))
 746   ;; Create the directory we save to.
 747   (when (and scan cdir save
 748              (not (file-exists-p save)))
 749     (make-directory save t))
 750   (let ((articles (gnus-uu-get-list-of-articles n))
 751         files)
 752     (setq files (gnus-uu-grab-articles articles method t))
 753     (let ((gnus-current-article (car articles)))
 754       (when scan
 755         (setq files (gnus-uu-scan-directory gnus-uu-work-dir))))
 756     (when save
 757       (gnus-uu-save-files files save))
 758     (when (eq gnus-uu-do-not-unpack-archives nil)
 759       (setq files (gnus-uu-unpack-files files)))
 760     (setq files (nreverse (gnus-uu-get-actions files)))
 761     (or not-insert (not gnus-insert-pseudo-articles)
 762         (gnus-summary-insert-pseudos files save))))
 763
 764 (defun gnus-uu-scan-directory (dir &optional rec)
 765   "Return a list of all files under DIR."
 766   (let ((files (directory-files dir t))
 767         out file)
 768     (while (setq file (pop files))
 769       (unless (member (file-name-nondirectory file) '("." ".."))
 770         (push (list (cons 'name file)
 771                     (cons 'article gnus-current-article))
 772               out)
 773         (when (file-directory-p file)
 774           (setq out (nconc (gnus-uu-scan-directory file t) out)))))
 775     (if rec
 776         out
 777       (nreverse out))))
 778
 779 (defun gnus-uu-save-files (files dir)
 780   "Save FILES in DIR."
 781   (let ((len (length files))
 782         (reg (concat "^" (regexp-quote gnus-uu-work-dir)))
 783         to-file file fromdir)
 784     (while (setq file (cdr (assq 'name (pop files))))
 785       (when (file-exists-p file)
 786         (string-match reg file)
 787         (setq fromdir (substring file (match-end 0)))
 788         (if (file-directory-p file)
 789             (gnus-make-directory (concat dir fromdir))
 790           (setq to-file (concat dir fromdir))
 791           (when (or (not (file-exists-p to-file))
 792                     (eq gnus-uu-be-dangerous t)
 793                     (and gnus-uu-be-dangerous
 794                          (gnus-y-or-n-p (format "%s exists; overwrite? "
 795                                                 to-file))))
 796             (copy-file file to-file t t)))))
 797     (gnus-message 5 "Saved %d file%s" len (if (= len 1) "" "s"))))
 798
 799 ;; Functions for saving and possibly digesting articles without
 800 ;; any decoding.
 801
 802 ;; Function called by gnus-uu-grab-articles to treat each article.
 803 (defun gnus-uu-save-article (buffer in-state)
 804   (cond
 805    (gnus-uu-save-separate-articles
 806     (save-excursion
 807       (set-buffer buffer)
 808       (gnus-write-buffer
 809        (concat gnus-uu-saved-article-name gnus-current-article))
 810       (cond ((eq in-state 'first) (list gnus-uu-saved-article-name 'begin))
 811             ((eq in-state 'first-and-last) (list gnus-uu-saved-article-name
 812                                                  'begin 'end))
 813             ((eq in-state 'last) (list 'end))
 814             (t (list 'middle)))))
 815    ((not gnus-uu-save-in-digest)
 816     (save-excursion
 817       (set-buffer buffer)
 818       (write-region (point-min) (point-max) gnus-uu-saved-article-name t)
 819       (cond ((eq in-state 'first) (list gnus-uu-saved-article-name 'begin))
 820             ((eq in-state 'first-and-last) (list gnus-uu-saved-article-name
 821                                                  'begin 'end))
 822             ((eq in-state 'last) (list 'end))
 823             (t (list 'middle)))))
 824    (t
 825     (let ((header (gnus-summary-article-header)))
 826       (push (cons (mail-header-from header)
 827                   (mail-header-subject header))
 828             gnus-uu-digest-from-subject))
 829     (let ((name (file-name-nondirectory gnus-uu-saved-article-name))
 830           (delim (concat "^" (make-string 30 ?-) "$"))
 831           beg subj headers headline sorthead body end-string state)
 832       (if (or (eq in-state 'first)
 833               (eq in-state 'first-and-last))
 834           (progn
 835             (setq state (list 'begin))
 836             (save-excursion (set-buffer (get-buffer-create "*gnus-uu-body*"))
 837                             (erase-buffer))
 838             (save-excursion
 839               (set-buffer (get-buffer-create "*gnus-uu-pre*"))
 840               (erase-buffer)
 841               (insert (format
 842                        "Date: %s\nFrom: %s\nSubject: %s Digest\n\nTopics:\n"
 843                        (current-time-string) name name))))
 844         (when (not (eq in-state 'end))
 845           (setq state (list 'middle))))
 846       (save-excursion
 847         (set-buffer (get-buffer "*gnus-uu-body*"))
 848         (goto-char (setq beg (point-max)))
 849         (save-excursion
 850           (save-restriction
 851             (set-buffer buffer)
 852             (let (buffer-read-only)
 853               (gnus-set-text-properties (point-min) (point-max) nil)
 854               ;; These two are necessary for XEmacs 19.12 fascism.
 855               (put-text-property (point-min) (point-max) 'invisible nil)
 856               (put-text-property (point-min) (point-max) 'intangible nil))
 857             (goto-char (point-min))
 858             (re-search-forward "\n\n")
 859             ;; Quote all 30-dash lines.
 860             (save-excursion
 861               (while (re-search-forward delim nil t)
 862                 (beginning-of-line)
 863                 (delete-char 1)
 864                 (insert " ")))
 865             (setq body (buffer-substring (1- (point)) (point-max)))
 866             (narrow-to-region (point-min) (point))
 867             (if (not (setq headers gnus-uu-digest-headers))
 868                 (setq sorthead (buffer-substring (point-min) (point-max)))
 869               (while headers
 870                 (setq headline (car headers))
 871                 (setq headers (cdr headers))
 872                 (goto-char (point-min))
 873                 (while (re-search-forward headline nil t)
 874                   (setq sorthead
 875                         (concat sorthead
 876                                 (buffer-substring
 877                                  (match-beginning 0)
 878                                  (or (and (re-search-forward "^[^ \t]" nil t)
 879                                           (1- (point)))
 880                                      (progn (forward-line 1) (point)))))))))
 881             (widen)))
 882         (insert sorthead) (goto-char (point-max))
 883         (insert body) (goto-char (point-max))
 884         (insert (concat "\n" (make-string 30 ?-) "\n\n"))
 885         (goto-char beg)
 886         (when (re-search-forward "^Subject: \\(.*\\)$" nil t)
 887           (setq subj (buffer-substring (match-beginning 1) (match-end 1)))
 888           (save-excursion
 889             (set-buffer (get-buffer "*gnus-uu-pre*"))
 890             (insert (format "   %s\n" subj)))))
 891       (when (or (eq in-state 'last)
 892                 (eq in-state 'first-and-last))
 893         (save-excursion
 894           (set-buffer (get-buffer "*gnus-uu-pre*"))
 895           (insert (format "\n\n%s\n\n" (make-string 70 ?-)))
 896           (gnus-write-buffer gnus-uu-saved-article-name))
 897         (save-excursion
 898           (set-buffer (get-buffer "*gnus-uu-body*"))
 899           (goto-char (point-max))
 900           (insert
 901            (concat (setq end-string (format "End of %s Digest" name))
 902                    "\n"))
 903           (insert (concat (make-string (length end-string) ?*) "\n"))
 904           (write-region
 905            (point-min) (point-max) gnus-uu-saved-article-name t))
 906         (kill-buffer (get-buffer "*gnus-uu-pre*"))
 907         (kill-buffer (get-buffer "*gnus-uu-body*"))
 908         (push 'end state))
 909       (if (memq 'begin state)
 910           (cons gnus-uu-saved-article-name state)
 911         state)))))
 912
 913 ;; Binhex treatment - not very advanced.
 914
 915 (defconst gnus-uu-binhex-body-line
 916   "^[^:]...............................................................$")
 917 (defconst gnus-uu-binhex-begin-line
 918   "^:...............................................................$")
 919 (defconst gnus-uu-binhex-end-line
 920   ":$")
 921
 922 (defun gnus-uu-binhex-article (buffer in-state)
 923   (let (state start-char)
 924     (save-excursion
 925       (set-buffer buffer)
 926       (widen)
 927       (goto-char (point-min))
 928       (when (not (re-search-forward gnus-uu-binhex-begin-line nil t))
 929         (when (not (re-search-forward gnus-uu-binhex-body-line nil t))
 930           (setq state (list 'wrong-type))))
 931
 932       (if (memq 'wrong-type state)
 933           ()
 934         (beginning-of-line)
 935         (setq start-char (point))
 936         (if (looking-at gnus-uu-binhex-begin-line)
 937             (progn
 938               (setq state (list 'begin))
 939               (write-region 1 1 gnus-uu-binhex-article-name))
 940           (setq state (list 'middle)))
 941         (goto-char (point-max))
 942         (re-search-backward (concat gnus-uu-binhex-body-line "\\|"
 943                                     gnus-uu-binhex-end-line)
 944                             nil t)
 945         (when (looking-at gnus-uu-binhex-end-line)
 946           (setq state (if (memq 'begin state)
 947                           (cons 'end state)
 948                         (list 'end))))
 949         (beginning-of-line)
 950         (forward-line 1)
 951         (when (file-exists-p gnus-uu-binhex-article-name)
 952           (append-to-file start-char (point) gnus-uu-binhex-article-name))))
 953     (if (memq 'begin state)
 954         (cons gnus-uu-binhex-article-name state)
 955       state)))
 956
 957 ;; PostScript
 958
 959 (defun gnus-uu-decode-postscript-article (process-buffer in-state)
 960   (let ((state (list 'ok))
 961         start-char end-char file-name)
 962     (save-excursion
 963       (set-buffer process-buffer)
 964       (goto-char (point-min))
 965       (if (not (re-search-forward gnus-uu-postscript-begin-string nil t))
 966           (setq state (list 'wrong-type))
 967         (beginning-of-line)
 968         (setq start-char (point))
 969         (if (not (re-search-forward gnus-uu-postscript-end-string nil t))
 970             (setq state (list 'wrong-type))
 971           (setq end-char (point))
 972           (set-buffer (get-buffer-create gnus-uu-output-buffer-name))
 973           (insert-buffer-substring process-buffer start-char end-char)
 974           (setq file-name (concat gnus-uu-work-dir
 975                                   (cdr gnus-article-current) ".ps"))
 976           (write-region (point-min) (point-max) file-name)
 977           (setq state (list file-name 'begin 'end)))))
 978     state))
 979
 980
 981 ;; Find actions.
 982
 983 (defun gnus-uu-get-actions (files)
 984   (let ((ofiles files)
 985         action name)
 986     (while files
 987       (setq name (cdr (assq 'name (car files))))
 988       (and
 989        (setq action (gnus-uu-get-action name))
 990        (setcar files (nconc (list (if (string= action "gnus-uu-archive")
 991                                       (cons 'action "file")
 992                                     (cons 'action action))
 993                                   (cons 'execute (gnus-uu-command
 994                                                   action name)))
 995                             (car files))))
 996       (setq files (cdr files)))
 997     ofiles))
 998
 999 (defun gnus-uu-get-action (file-name)
1000   (let (action)
1001     (setq action
1002           (gnus-uu-choose-action
1003            file-name
1004            (append
1005             gnus-uu-user-view-rules
1006             (if gnus-uu-ignore-default-view-rules
1007                 nil
1008               gnus-uu-default-view-rules)
1009             gnus-uu-user-view-rules-end)))
1010     (when (and (not (string= (or action "") "gnus-uu-archive"))
1011                gnus-uu-view-with-metamail)
1012       (when (setq action
1013                   (gnus-uu-choose-action file-name gnus-uu-ext-to-mime-list))
1014         (setq action (format "metamail -d -b -c \"%s\"" action))))
1015     action))
1016
1017
1018 ;; Functions for treating subjects and collecting series.
1019
1020 (defun gnus-uu-reginize-string (string)
1021   ;; Takes a string and puts a \ in front of every special character;
1022   ;; ignores any leading "version numbers" thingies that they use in
1023   ;; the comp.binaries groups, and either replaces anything that looks
1024   ;; like "2/3" with "[0-9]+/[0-9]+" or, if it can't find something
1025   ;; like that, replaces the last two numbers with "[0-9]+".  This, in
1026   ;; my experience, should get most postings of a series.
1027   (let ((count 2)
1028         (vernum "v[0-9]+[a-z][0-9]+:")
1029         beg)
1030     (save-excursion
1031       (set-buffer (get-buffer-create gnus-uu-output-buffer-name))
1032       (buffer-disable-undo (current-buffer))
1033       (erase-buffer)
1034       (insert (regexp-quote string))
1035       (setq beg 1)
1036
1037       (setq case-fold-search nil)
1038       (goto-char (point-min))
1039       (when (looking-at vernum)
1040         (replace-match vernum t t)
1041         (setq beg (length vernum)))
1042
1043       (goto-char beg)
1044       (if (re-search-forward "[ \t]*[0-9]+/[0-9]+" nil t)
1045           (replace-match " [0-9]+/[0-9]+")
1046
1047         (goto-char beg)
1048         (if (re-search-forward "[0-9]+[ \t]*of[ \t]*[0-9]+" nil t)
1049             (replace-match "[0-9]+ of [0-9]+")
1050
1051           (end-of-line)
1052           (if (re-search-backward "\\([^0-9]\\)[0-9]+\\([^0-9]+\\)[0-9]+"
1053                                   nil t)
1054               (replace-match "\\1[0-9]+\\2[0-9]+" t nil nil nil))))
1055
1056       (goto-char beg)
1057       (while (re-search-forward "[ \t]+" nil t)
1058         (replace-match "[ \t]*" t t))
1059
1060       (buffer-substring 1 (point-max)))))
1061
1062 (defun gnus-uu-get-list-of-articles (n)
1063   ;; If N is non-nil, the article numbers of the N next articles
1064   ;; will be returned.
1065   ;; If any articles have been marked as processable, they will be
1066   ;; returned.
1067   ;; Failing that, articles that have subjects that are part of the
1068   ;; same "series" as the current will be returned.
1069   (let (articles)
1070     (cond
1071      (n
1072       (setq n (prefix-numeric-value n))
1073       (let ((backward (< n 0))
1074             (n (abs n)))
1075         (save-excursion
1076           (while (and (> n 0)
1077                       (push (gnus-summary-article-number)
1078                             articles)
1079                       (gnus-summary-search-forward nil nil backward))
1080             (setq n (1- n))))
1081         (nreverse articles)))
1082      (gnus-newsgroup-processable
1083       (reverse gnus-newsgroup-processable))
1084      (t
1085       (gnus-uu-find-articles-matching)))))
1086
1087 (defun gnus-uu-string< (l1 l2)
1088   (string< (car l1) (car l2)))
1089
1090 (defun gnus-uu-find-articles-matching
1091   (&optional subject only-unread do-not-translate)
1092   ;; Finds all articles that matches the regexp SUBJECT.  If it is
1093   ;; nil, the current article name will be used.  If ONLY-UNREAD is
1094   ;; non-nil, only unread articles are chosen.  If DO-NOT-TRANSLATE is
1095   ;; non-nil, article names are not equalized before sorting.
1096   (let ((subject (or subject
1097                      (gnus-uu-reginize-string (gnus-summary-article-subject))))
1098         list-of-subjects)
1099     (save-excursion
1100       (if (not subject)
1101           ()
1102         ;; Collect all subjects matching subject.
1103         (let ((case-fold-search t)
1104               (data gnus-newsgroup-data)
1105               subj mark d)
1106           (while data
1107             (setq d (pop data))
1108             (and (not (gnus-data-pseudo-p d))
1109                  (or (not only-unread)
1110                      (= (setq mark (gnus-data-mark d))
1111                         gnus-unread-mark)
1112                      (= mark gnus-ticked-mark)
1113                      (= mark gnus-dormant-mark))
1114                  (setq subj (mail-header-subject (gnus-data-header d)))
1115                  (string-match subject subj)
1116                  (push (cons subj (gnus-data-number d))
1117                        list-of-subjects))))
1118
1119         ;; Expand numbers, sort, and return the list of article
1120         ;; numbers.
1121         (mapcar (lambda (sub) (cdr sub))
1122                 (sort (gnus-uu-expand-numbers
1123                        list-of-subjects
1124                        (not do-not-translate))
1125                       'gnus-uu-string<))))))
1126
1127 (defun gnus-uu-expand-numbers (string-list &optional translate)
1128   ;; Takes a list of strings and "expands" all numbers in all the
1129   ;; strings.  That is, this function makes all numbers equal length by
1130   ;; prepending lots of zeroes before each number.  This is to ease later
1131   ;; sorting to find out what sequence the articles are supposed to be
1132   ;; decoded in.  Returns the list of expanded strings.
1133   (let ((out-list string-list)
1134         string)
1135     (save-excursion
1136       (set-buffer (get-buffer-create gnus-uu-output-buffer-name))
1137       (buffer-disable-undo (current-buffer))
1138       (while string-list
1139         (erase-buffer)
1140         (insert (caar string-list))
1141         ;; Translate multiple spaces to one space.
1142         (goto-char (point-min))
1143         (while (re-search-forward "[ \t]+" nil t)
1144           (replace-match " "))
1145         ;; Translate all characters to "a".
1146         (goto-char (point-min))
1147         (when translate
1148           (while (re-search-forward "[A-Za-z]" nil t)
1149             (replace-match "a" t t)))
1150         ;; Expand numbers.
1151         (goto-char (point-min))
1152         (while (re-search-forward "[0-9]+" nil t)
1153           (replace-match
1154            (format "%06d"
1155                    (string-to-int (buffer-substring
1156                                    (match-beginning 0) (match-end 0))))))
1157         (setq string (buffer-substring 1 (point-max)))
1158         (setcar (car string-list) string)
1159         (setq string-list (cdr string-list))))
1160     out-list))
1161
1162
1163 ;; `gnus-uu-grab-articles' is the general multi-article treatment
1164 ;; function.  It takes a list of articles to be grabbed and a function
1165 ;; to apply to each article.
1166 ;;
1167 ;; The function to be called should take two parameters.  The first
1168 ;; parameter is the article buffer.  The function should leave the
1169 ;; result, if any, in this buffer.  Most treatment functions will just
1170 ;; generate files...
1171 ;;
1172 ;; The second parameter is the state of the list of articles, and can
1173 ;; have four values: `first', `middle', `last' and `first-and-last'.
1174 ;;
1175 ;; The function should return a list.  The list may contain the
1176 ;; following symbols:
1177 ;; `error' if an error occurred
1178 ;; `begin' if the beginning of an encoded file has been received
1179 ;;   If the list returned contains a `begin', the first element of
1180 ;;   the list *must* be a string with the file name of the decoded
1181 ;;   file.
1182 ;; `end' if the end of an encoded file has been received
1183 ;; `middle' if the article was a body part of an encoded file
1184 ;; `wrong-type' if the article was not a part of an encoded file
1185 ;; `ok', which can be used everything is ok
1186
1187 (defvar gnus-uu-has-been-grabbed nil)
1188
1189 (defun gnus-uu-unmark-list-of-grabbed (&optional dont-unmark-last-article)
1190   (let (art)
1191     (if (not (and gnus-uu-has-been-grabbed
1192                   gnus-uu-unmark-articles-not-decoded))
1193         ()
1194       (when dont-unmark-last-article
1195         (setq art (car gnus-uu-has-been-grabbed))
1196         (setq gnus-uu-has-been-grabbed (cdr gnus-uu-has-been-grabbed)))
1197       (while gnus-uu-has-been-grabbed
1198         (gnus-summary-tick-article (car gnus-uu-has-been-grabbed) t)
1199         (setq gnus-uu-has-been-grabbed (cdr gnus-uu-has-been-grabbed)))
1200       (when dont-unmark-last-article
1201         (setq gnus-uu-has-been-grabbed (list art))))))
1202
1203 ;; This function takes a list of articles and a function to apply to
1204 ;; each article grabbed.
1205 ;;
1206 ;; This function returns a list of files decoded if the grabbing and
1207 ;; the process-function has been successful and nil otherwise.
1208 (defun gnus-uu-grab-articles (articles process-function
1209                                        &optional sloppy limit no-errors)
1210   (let ((state 'first)
1211         has-been-begin article result-file result-files process-state
1212         gnus-summary-display-article-function
1213         gnus-article-display-hook gnus-article-prepare-hook
1214         article-series files)
1215
1216     (while (and articles
1217                 (not (memq 'error process-state))
1218                 (or sloppy
1219                     (not (memq 'end process-state))))
1220
1221       (setq article (pop articles))
1222       (push article article-series)
1223
1224       (unless articles
1225         (if (eq state 'first)
1226             (setq state 'first-and-last)
1227           (setq state 'last)))
1228
1229       (let ((part (gnus-uu-part-number article)))
1230         (gnus-message 6 "Getting article %d%s..."
1231                       article (if (string= part "") "" (concat ", " part))))
1232       (gnus-summary-display-article article)
1233
1234       ;; Push the article to the processing function.
1235       (save-excursion
1236         (set-buffer gnus-original-article-buffer)
1237         (let ((buffer-read-only nil))
1238           (save-excursion
1239             (set-buffer gnus-summary-buffer)
1240             (setq process-state
1241                   (funcall process-function
1242                            gnus-original-article-buffer state)))))
1243
1244       (gnus-summary-remove-process-mark article)
1245
1246       ;; If this is the beginning of a decoded file, we push it
1247       ;; on to a list.
1248       (when (or (memq 'begin process-state)
1249                 (and (or (eq state 'first)
1250                          (eq state 'first-and-last))
1251                      (memq 'ok process-state)))
1252         (when has-been-begin
1253           ;; If there is a `result-file' here, that means that the
1254           ;; file was unsuccessfully decoded, so we delete it.
1255           (when (and result-file
1256                      (file-exists-p result-file)
1257                      (not gnus-uu-be-dangerous)
1258                      (or (eq gnus-uu-be-dangerous t)
1259                          (gnus-y-or-n-p
1260                           (format "Delete unsuccessfully decoded file %s"
1261                                   result-file))))
1262             (delete-file result-file)))
1263         (when (memq 'begin process-state)
1264           (setq result-file (car process-state)))
1265         (setq has-been-begin t))
1266
1267       ;; Check whether we have decoded one complete file.
1268       (when (memq 'end process-state)
1269         (setq article-series nil)
1270         (setq has-been-begin nil)
1271         (if (stringp result-file)
1272             (setq files (list result-file))
1273           (setq files result-file))
1274         (setq result-file (car files))
1275         (while files
1276           (push (list (cons 'name (pop files))
1277                       (cons 'article article))
1278                 result-files))
1279         ;; Allow user-defined functions to be run on this file.
1280         (when gnus-uu-grabbed-file-functions
1281           (let ((funcs gnus-uu-grabbed-file-functions))
1282             (unless (listp funcs)
1283               (setq funcs (list funcs)))
1284             (while funcs
1285               (funcall (pop funcs) result-file))))
1286         (setq result-file nil)
1287         ;; Check whether we have decoded enough articles.
1288         (and limit (= (length result-files) limit)
1289              (setq articles nil)))
1290
1291       ;; If this is the last article to be decoded, and
1292       ;; we still haven't reached the end, then we delete
1293       ;; the partially decoded file.
1294       (and (or (eq state 'last) (eq state 'first-and-last))
1295            (not (memq 'end process-state))
1296            result-file
1297            (file-exists-p result-file)
1298            (not gnus-uu-be-dangerous)
1299            (or (eq gnus-uu-be-dangerous t)
1300                (gnus-y-or-n-p (format "Delete incomplete file %s? " result-file)))
1301            (delete-file result-file))
1302
1303       ;; If this was a file of the wrong sort, then
1304       (when (and (or (memq 'wrong-type process-state)
1305                      (memq 'error process-state))
1306                  gnus-uu-unmark-articles-not-decoded)
1307         (gnus-summary-tick-article article t))
1308
1309       ;; Set the new series state.
1310       (if (and (not has-been-begin)
1311                (not sloppy)
1312                (or (memq 'end process-state)
1313                    (memq 'middle process-state)))
1314           (progn
1315             (setq process-state (list 'error))
1316             (gnus-message 2 "No begin part at the beginning")
1317             (sleep-for 2))
1318         (setq state 'middle)))
1319
1320     ;; When there are no result-files, then something must be wrong.
1321     (if result-files
1322         (message "")
1323       (cond
1324        ((not has-been-begin)
1325         (gnus-message 2 "Wrong type file"))
1326        ((memq 'error process-state)
1327         (gnus-message 2 "An error occurred during decoding"))
1328        ((not (or (memq 'ok process-state)
1329                  (memq 'end process-state)))
1330         (gnus-message 2 "End of articles reached before end of file")))
1331       ;; Make unsuccessfully decoded articles unread.
1332       (when gnus-uu-unmark-articles-not-decoded
1333         (while article-series
1334           (gnus-summary-tick-article (pop article-series) t))))
1335
1336     result-files))
1337
1338 (defun gnus-uu-grab-view (file)
1339   "View FILE using the gnus-uu methods."
1340   (let ((action (gnus-uu-get-action file)))
1341     (gnus-execute-command
1342      (if (string-match "%" action)
1343          (format action file)
1344        (concat action " " file))
1345      (eq gnus-view-pseudos 'not-confirm))))
1346
1347 (defun gnus-uu-grab-move (file)
1348   "Move FILE to somewhere."
1349   (when gnus-uu-default-dir
1350     (let ((to-file (concat (file-name-as-directory gnus-uu-default-dir)
1351                            (file-name-nondirectory file))))
1352       (rename-file file to-file)
1353       (unless (file-exists-p file)
1354         (make-symbolic-link to-file file)))))
1355
1356 (defun gnus-uu-part-number (article)
1357   (let* ((header (gnus-summary-article-header article))
1358          (subject (and header (mail-header-subject header))))
1359     (if (and subject
1360              (string-match "[0-9]+ */[0-9]+\\|[0-9]+ * of *[0-9]+" subject))
1361         (match-string 0 subject)
1362       "")))
1363
1364 (defun gnus-uu-uudecode-sentinel (process event)
1365   (delete-process (get-process process)))
1366
1367 (defun gnus-uu-uustrip-article (process-buffer in-state)
1368   ;; Uudecodes a file asynchronously.
1369   (save-excursion
1370     (set-buffer process-buffer)
1371     (let ((state (list 'wrong-type))
1372           process-connection-type case-fold-search buffer-read-only
1373           files start-char)
1374       (goto-char (point-min))
1375
1376       ;; Deal with ^M at the end of the lines.
1377       (when gnus-uu-kill-carriage-return
1378         (save-excursion
1379           (while (search-forward "\r" nil t)
1380             (delete-backward-char 1))))
1381
1382       (while (or (re-search-forward gnus-uu-begin-string nil t)
1383                  (re-search-forward gnus-uu-body-line nil t))
1384         (setq state (list 'ok))
1385         ;; Ok, we are at the first uucoded line.
1386         (beginning-of-line)
1387         (setq start-char (point))
1388
1389         (if (not (looking-at gnus-uu-begin-string))
1390             (setq state (list 'middle))
1391           ;; This is the beginning of a uuencoded article.
1392           ;; We replace certain characters that could make things messy.
1393           (setq gnus-uu-file-name
1394                 (let ((nnheader-file-name-translation-alist
1395                        '((?/ . ?,) (? . ?_) (?* . ?_) (?$ . ?_))))
1396                   (nnheader-translate-file-chars (match-string 1))))
1397           (replace-match (concat "begin 644 " gnus-uu-file-name) t t)
1398
1399           ;; Remove any non gnus-uu-body-line right after start.
1400           (forward-line 1)
1401           (while (and (not (eobp))
1402                       (not (looking-at gnus-uu-body-line)))
1403             (gnus-delete-line))
1404
1405           ;; If a process is running, we kill it.
1406           (when (and gnus-uu-uudecode-process
1407                      (memq (process-status gnus-uu-uudecode-process)
1408                            '(run stop)))
1409             (delete-process gnus-uu-uudecode-process)
1410             (gnus-uu-unmark-list-of-grabbed t))
1411
1412           ;; Start a new uudecoding process.
1413           (let ((cdir default-directory))
1414             (unwind-protect
1415                 (progn
1416                   (cd gnus-uu-work-dir)
1417                   (setq gnus-uu-uudecode-process
1418                         (start-process
1419                          "*uudecode*"
1420                          (get-buffer-create gnus-uu-output-buffer-name)
1421                          shell-file-name shell-command-switch
1422                          (format "cd %s %s uudecode" gnus-uu-work-dir
1423                                  gnus-shell-command-separator))))
1424               (cd cdir)))
1425           (set-process-sentinel
1426            gnus-uu-uudecode-process 'gnus-uu-uudecode-sentinel)
1427           (setq state (list 'begin))
1428           (push (concat gnus-uu-work-dir gnus-uu-file-name) files))
1429
1430         ;; We look for the end of the thing to be decoded.
1431         (if (re-search-forward gnus-uu-end-string nil t)
1432             (push 'end state)
1433           (goto-char (point-max))
1434           (re-search-backward gnus-uu-body-line nil t))
1435
1436         (forward-line 1)
1437
1438         (when gnus-uu-uudecode-process
1439           (when (memq (process-status gnus-uu-uudecode-process) '(run stop))
1440             ;; Try to correct mishandled uucode.
1441             (when gnus-uu-correct-stripped-uucode
1442               (gnus-uu-check-correct-stripped-uucode start-char (point)))
1443
1444             ;; Send the text to the process.
1445             (condition-case nil
1446                 (process-send-region
1447                  gnus-uu-uudecode-process start-char (point))
1448               (error
1449                (progn
1450                  (delete-process gnus-uu-uudecode-process)
1451                  (gnus-message 2 "gnus-uu: Couldn't uudecode")
1452                  (setq state (list 'wrong-type)))))
1453
1454             (if (memq 'end state)
1455                 (progn
1456                   ;; Send an EOF, just in case.
1457                   (ignore-errors
1458                     (process-send-eof gnus-uu-uudecode-process))
1459                   (while (memq (process-status gnus-uu-uudecode-process)
1460                                '(open run))
1461                     (accept-process-output gnus-uu-uudecode-process 1)))
1462               (when (or (not gnus-uu-uudecode-process)
1463                         (not (memq (process-status gnus-uu-uudecode-process)
1464                                    '(run stop))))
1465                 (setq state (list 'wrong-type)))))))
1466
1467       (if (memq 'begin state)
1468           (cons (if (= (length files) 1) (car files) files) state)
1469         state))))
1470
1471 ;; This function is used by `gnus-uu-grab-articles' to treat
1472 ;; a shared article.
1473 (defun gnus-uu-unshar-article (process-buffer in-state)
1474   (let ((state (list 'ok))
1475         start-char)
1476     (save-excursion
1477       (set-buffer process-buffer)
1478       (goto-char (point-min))
1479       (if (not (re-search-forward gnus-uu-shar-begin-string nil t))
1480           (setq state (list 'wrong-type))
1481         (beginning-of-line)
1482         (setq start-char (point))
1483         (call-process-region
1484          start-char (point-max) shell-file-name nil
1485          (get-buffer-create gnus-uu-output-buffer-name) nil
1486          shell-command-switch
1487          (concat "cd " gnus-uu-work-dir " "
1488                  gnus-shell-command-separator  " sh"))))
1489     state))
1490
1491 ;; Returns the name of what the shar file is going to unpack.
1492 (defun gnus-uu-find-name-in-shar ()
1493   (let ((oldpoint (point))
1494         res)
1495     (goto-char (point-min))
1496     (when (re-search-forward gnus-uu-shar-name-marker nil t)
1497       (setq res (buffer-substring (match-beginning 1) (match-end 1))))
1498     (goto-char oldpoint)
1499     res))
1500
1501 ;; `gnus-uu-choose-action' chooses what action to perform given the name
1502 ;; and `gnus-uu-file-action-list'.  Returns either nil if no action is
1503 ;; found, or the name of the command to run if such a rule is found.
1504 (defun gnus-uu-choose-action (file-name file-action-list &optional no-ignore)
1505   (let ((action-list (copy-sequence file-action-list))
1506         (case-fold-search t)
1507         rule action)
1508     (and
1509      (unless no-ignore
1510        (and (not
1511              (and gnus-uu-ignore-files-by-name
1512                   (string-match gnus-uu-ignore-files-by-name file-name)))
1513             (not
1514              (and gnus-uu-ignore-files-by-type
1515                   (string-match gnus-uu-ignore-files-by-type
1516                                 (or (gnus-uu-choose-action
1517                                      file-name gnus-uu-ext-to-mime-list t)
1518                                     ""))))))
1519      (while (not (or (eq action-list ()) action))
1520        (setq rule (car action-list))
1521        (setq action-list (cdr action-list))
1522        (when (string-match (car rule) file-name)
1523          (setq action (cadr rule)))))
1524     action))
1525
1526 (defun gnus-uu-treat-archive (file-path)
1527   ;; Unpacks an archive.  Returns t if unpacking is successful.
1528   (let ((did-unpack t)
1529         action command dir)
1530     (setq action (gnus-uu-choose-action
1531                   file-path (append gnus-uu-user-archive-rules
1532                                     (if gnus-uu-ignore-default-archive-rules
1533                                         nil
1534                                       gnus-uu-default-archive-rules))))
1535
1536     (when (not action)
1537       (error "No unpackers for the file %s" file-path))
1538
1539     (string-match "/[^/]*$" file-path)
1540     (setq dir (substring file-path 0 (match-beginning 0)))
1541
1542     (when (member action gnus-uu-destructive-archivers)
1543       (copy-file file-path (concat file-path "~") t))
1544
1545     (setq command (format "cd %s ; %s" dir (gnus-uu-command action file-path)))
1546
1547     (save-excursion
1548       (set-buffer (get-buffer-create gnus-uu-output-buffer-name))
1549       (erase-buffer))
1550
1551     (gnus-message 5 "Unpacking: %s..." (gnus-uu-command action file-path))
1552
1553     (if (= 0 (call-process shell-file-name nil
1554                            (get-buffer-create gnus-uu-output-buffer-name)
1555                            nil shell-command-switch command))
1556         (message "")
1557       (gnus-message 2 "Error during unpacking of archive")
1558       (setq did-unpack nil))
1559
1560     (when (member action gnus-uu-destructive-archivers)
1561       (rename-file (concat file-path "~") file-path t))
1562
1563     did-unpack))
1564
1565 (defun gnus-uu-dir-files (dir)
1566   (let ((dirs (directory-files dir t "[^/][^\\.][^\\.]?$"))
1567         files file)
1568     (while dirs
1569       (if (file-directory-p (setq file (car dirs)))
1570           (setq files (append files (gnus-uu-dir-files file)))
1571         (push file files))
1572       (setq dirs (cdr dirs)))
1573     files))
1574
1575 (defun gnus-uu-unpack-files (files &optional ignore)
1576   ;; Go through FILES and look for files to unpack.
1577   (let* ((totfiles (gnus-uu-ls-r gnus-uu-work-dir))
1578          (ofiles files)
1579          file did-unpack)
1580     (while files
1581       (setq file (cdr (assq 'name (car files))))
1582       (when (and (not (member file ignore))
1583                  (equal (gnus-uu-get-action (file-name-nondirectory file))
1584                         "gnus-uu-archive"))
1585         (push file did-unpack)
1586         (unless (gnus-uu-treat-archive file)
1587           (gnus-message 2 "Error during unpacking of %s" file))
1588         (let* ((newfiles (gnus-uu-ls-r gnus-uu-work-dir))
1589                (nfiles newfiles))
1590           (while nfiles
1591             (unless (member (car nfiles) totfiles)
1592               (push (list (cons 'name (car nfiles))
1593                           (cons 'original file))
1594                     ofiles))
1595             (setq nfiles (cdr nfiles)))
1596           (setq totfiles newfiles)))
1597       (setq files (cdr files)))
1598     (if did-unpack
1599         (gnus-uu-unpack-files ofiles (append did-unpack ignore))
1600       ofiles)))
1601
1602 (defun gnus-uu-ls-r (dir)
1603   (let* ((files (gnus-uu-directory-files dir t))
1604          (ofiles files))
1605     (while files
1606       (when (file-directory-p (car files))
1607         (setq ofiles (delete (car files) ofiles))
1608         (setq ofiles (append ofiles (gnus-uu-ls-r (car files)))))
1609       (setq files (cdr files)))
1610     ofiles))
1611
1612 ;; Various stuff
1613
1614 (defun gnus-uu-directory-files (dir &optional full)
1615   (let (files out file)
1616     (setq files (directory-files dir full))
1617     (while files
1618       (setq file (car files))
1619       (setq files (cdr files))
1620       (unless (member (file-name-nondirectory file) '("." ".."))
1621         (push file out)))
1622     (setq out (nreverse out))
1623     out))
1624
1625 (defun gnus-uu-check-correct-stripped-uucode (start end)
1626   (save-excursion
1627     (let (found beg length)
1628       (if (not gnus-uu-correct-stripped-uucode)
1629           ()
1630         (goto-char start)
1631
1632         (if (re-search-forward " \\|`" end t)
1633             (progn
1634               (goto-char start)
1635               (while (not (eobp))
1636                 (progn
1637                   (when (looking-at "\n")
1638                     (replace-match ""))
1639                   (forward-line 1))))
1640
1641           (while (not (eobp))
1642             (if (looking-at (concat gnus-uu-begin-string "\\|"
1643                                     gnus-uu-end-string))
1644                 ()
1645               (when (not found)
1646                 (beginning-of-line)
1647                 (setq beg (point))
1648                 (end-of-line)
1649                 (setq length (- (point) beg)))
1650               (setq found t)
1651               (beginning-of-line)
1652               (setq beg (point))
1653               (end-of-line)
1654               (when (not (= length (- (point) beg)))
1655                 (insert (make-string (- length (- (point) beg)) ? ))))
1656             (forward-line 1)))))))
1657
1658 (defvar gnus-uu-tmp-alist nil)
1659
1660 (defun gnus-uu-initialize (&optional scan)
1661   (let (entry)
1662     (if (and (not scan)
1663              (when (setq entry (assoc gnus-newsgroup-name gnus-uu-tmp-alist))
1664                (if (file-exists-p (cdr entry))
1665                    (setq gnus-uu-work-dir (cdr entry))
1666                  (setq gnus-uu-tmp-alist (delq entry gnus-uu-tmp-alist))
1667                  nil)))
1668         t
1669       (setq gnus-uu-tmp-dir (file-name-as-directory
1670                              (expand-file-name gnus-uu-tmp-dir)))
1671       (if (not (file-directory-p gnus-uu-tmp-dir))
1672           (error "Temp directory %s doesn't exist" gnus-uu-tmp-dir)
1673         (when (not (file-writable-p gnus-uu-tmp-dir))
1674           (error "Temp directory %s can't be written to"
1675                  gnus-uu-tmp-dir)))
1676
1677       (setq gnus-uu-work-dir
1678             (make-temp-name (concat gnus-uu-tmp-dir "gnus")))
1679       (gnus-make-directory gnus-uu-work-dir)
1680       (set-file-modes gnus-uu-work-dir 448)
1681       (setq gnus-uu-work-dir (file-name-as-directory gnus-uu-work-dir))
1682       (push (cons gnus-newsgroup-name gnus-uu-work-dir)
1683             gnus-uu-tmp-alist))))
1684
1685
1686 ;; Kills the temporary uu buffers, kills any processes, etc.
1687 (defun gnus-uu-clean-up ()
1688   (let (buf)
1689     (and gnus-uu-uudecode-process
1690          (memq (process-status (or gnus-uu-uudecode-process "nevair"))
1691                '(stop run))
1692          (delete-process gnus-uu-uudecode-process))
1693     (when (setq buf (get-buffer gnus-uu-output-buffer-name))
1694       (kill-buffer buf))))
1695
1696 (defun gnus-quote-arg-for-sh-or-csh (arg)
1697   (let ((pos 0) new-pos accum)
1698     ;; *** bug: we don't handle newline characters properly
1699     (while (setq new-pos (string-match "[!`\"$\\& \t{}]" arg pos))
1700       (push (substring arg pos new-pos) accum)
1701       (push "\\" accum)
1702       (push (list (aref arg new-pos)) accum)
1703       (setq pos (1+ new-pos)))
1704     (if (= pos 0)
1705         arg
1706       (apply 'concat (nconc (nreverse accum) (list (substring arg pos)))))))
1707
1708 ;; Inputs an action and a filename and returns a full command, making sure
1709 ;; that the filename will be treated as a single argument when the shell
1710 ;; executes the command.
1711 (defun gnus-uu-command (action file)
1712   (let ((quoted-file (gnus-quote-arg-for-sh-or-csh file)))
1713     (if (string-match "%s" action)
1714         (format action quoted-file)
1715       (concat action " " quoted-file))))
1716
1717 (defun gnus-uu-delete-work-dir (&optional dir)
1718   "Delete recursively all files and directories under `gnus-uu-work-dir'."
1719   (if dir
1720       (gnus-message 7 "Deleting directory %s..." dir)
1721     (setq dir gnus-uu-work-dir))
1722   (when (and dir
1723              (file-exists-p dir))
1724     (let ((files (directory-files dir t nil t))
1725           file)
1726       (while (setq file (pop files))
1727         (unless (member (file-name-nondirectory file) '("." ".."))
1728           (if (file-directory-p file)
1729               (gnus-uu-delete-work-dir file)
1730             (gnus-message 9 "Deleting file %s..." file)
1731             (delete-file file))))
1732       (delete-directory dir)))
1733   (gnus-message 7 ""))
1734
1735 ;; Initializing
1736
1737 (add-hook 'gnus-exit-group-hook 'gnus-uu-clean-up)
1738 (add-hook 'gnus-exit-group-hook 'gnus-uu-delete-work-dir)
1739
1740 \f
1741
1742 ;;;
1743 ;;; uuencoded posting
1744 ;;;
1745
1746 ;; Any function that is to be used as and encoding method will take two
1747 ;; parameters: PATH-NAME and FILE-NAME.  (E.g. "/home/gaga/spiral.jpg"
1748 ;; and "spiral.jpg", respectively.) The function should return nil if
1749 ;; the encoding wasn't successful.
1750 (defcustom gnus-uu-post-encode-method 'gnus-uu-post-encode-uuencode
1751   "Function used for encoding binary files.
1752 There are three functions supplied with gnus-uu for encoding files:
1753 `gnus-uu-post-encode-uuencode', which does straight uuencoding;
1754 `gnus-uu-post-encode-mime', which encodes with base64 and adds MIME
1755 headers; and `gnus-uu-post-encode-mime-uuencode', which encodes with
1756 uuencode and adds MIME headers."
1757   :group 'gnus-extract-post
1758   :type '(radio (function-item gnus-uu-post-encode-uuencode)
1759                 (function-item gnus-uu-post-encode-mime)
1760                 (function-item gnus-uu-post-encode-mime-uuencode)
1761                 (function :tag "Other")))
1762
1763 (defcustom gnus-uu-post-include-before-composing nil
1764   "Non-nil means that gnus-uu will ask for a file to encode before you compose the article.
1765 If this variable is t, you can either include an encoded file with
1766 \\[gnus-uu-post-insert-binary-in-article] or have one included for you when you post the article."
1767   :group 'gnus-extract-post
1768   :type 'boolean)
1769
1770 (defcustom gnus-uu-post-length 990
1771   "Maximum length of an article.
1772 The encoded file will be split into how many articles it takes to
1773 post the entire file."
1774   :group 'gnus-extract-post
1775   :type 'integer)
1776
1777 (defcustom gnus-uu-post-threaded nil
1778   "Non-nil means that gnus-uu will post the encoded file in a thread.
1779 This may not be smart, as no other decoder I have seen are able to
1780 follow threads when collecting uuencoded articles.  (Well, I have seen
1781 one package that does that - gnus-uu, but somehow, I don't think that
1782 counts...)  The default is nil."
1783   :group 'gnus-extract-post
1784   :type 'boolean)
1785
1786 (defcustom gnus-uu-post-separate-description t
1787   "Non-nil means that the description will be posted in a separate article.
1788 The first article will typically be numbered (0/x).  If this variable
1789 is nil, the description the user enters will be included at the
1790 beginning of the first article, which will be numbered (1/x).  Default
1791 is t."
1792   :group 'gnus-extract-post
1793   :type 'boolean)
1794
1795 (defvar gnus-uu-post-binary-separator "--binary follows this line--")
1796 (defvar gnus-uu-post-message-id nil)
1797 (defvar gnus-uu-post-inserted-file-name nil)
1798 (defvar gnus-uu-winconf-post-news nil)
1799
1800 (defun gnus-uu-post-news ()
1801   "Compose an article and post an encoded file."
1802   (interactive)
1803   (setq gnus-uu-post-inserted-file-name nil)
1804   (setq gnus-uu-winconf-post-news (current-window-configuration))
1805
1806   (gnus-summary-post-news)
1807
1808   (use-local-map (copy-keymap (current-local-map)))
1809   (local-set-key "\C-c\C-c" 'gnus-summary-edit-article-done)
1810   (local-set-key "\C-c\C-c" 'gnus-uu-post-news-inews)
1811   (local-set-key "\C-c\C-s" 'gnus-uu-post-news-inews)
1812   (local-set-key "\C-c\C-i" 'gnus-uu-post-insert-binary-in-article)
1813
1814   (when gnus-uu-post-include-before-composing
1815     (save-excursion (setq gnus-uu-post-inserted-file-name
1816                           (gnus-uu-post-insert-binary)))))
1817
1818 (defun gnus-uu-post-insert-binary-in-article ()
1819   "Inserts an encoded file in the buffer.
1820 The user will be asked for a file name."
1821   (interactive)
1822   (save-excursion
1823     (setq gnus-uu-post-inserted-file-name (gnus-uu-post-insert-binary))))
1824
1825 ;; Encodes with uuencode and substitutes all spaces with backticks.
1826 (defun gnus-uu-post-encode-uuencode (path file-name)
1827   (when (gnus-uu-post-encode-file "uuencode" path file-name)
1828     (goto-char (point-min))
1829     (forward-line 1)
1830     (while (re-search-forward " " nil t)
1831       (replace-match "`"))
1832     t))
1833
1834 ;; Encodes with uuencode and adds MIME headers.
1835 (defun gnus-uu-post-encode-mime-uuencode (path file-name)
1836   (when (gnus-uu-post-encode-uuencode path file-name)
1837     (gnus-uu-post-make-mime file-name "x-uue")
1838     t))
1839
1840 ;; Encodes with base64 and adds MIME headers
1841 (defun gnus-uu-post-encode-mime (path file-name)
1842   (when (gnus-uu-post-encode-file "mmencode" path file-name)
1843     (gnus-uu-post-make-mime file-name "base64")
1844     t))
1845
1846 ;; Adds MIME headers.
1847 (defun gnus-uu-post-make-mime (file-name encoding)
1848   (goto-char (point-min))
1849   (insert (format "Content-Type: %s; name=\"%s\"\n"
1850                   (gnus-uu-choose-action file-name gnus-uu-ext-to-mime-list)
1851                   file-name))
1852   (insert (format "Content-Transfer-Encoding: %s\n\n" encoding))
1853   (save-restriction
1854     (set-buffer gnus-message-buffer)
1855     (goto-char (point-min))
1856     (re-search-forward (concat "^" (regexp-quote mail-header-separator) "$"))
1857     (forward-line -1)
1858     (narrow-to-region 1 (point))
1859     (unless (mail-fetch-field "mime-version")
1860       (widen)
1861       (insert "MIME-Version: 1.0\n"))
1862     (widen)))
1863
1864 ;; Encodes a file PATH with COMMAND, leaving the result in the
1865 ;; current buffer.
1866 (defun gnus-uu-post-encode-file (command path file-name)
1867   (= 0 (call-process shell-file-name nil t nil shell-command-switch
1868                      (format "%s %s %s" command path file-name))))
1869
1870 (defun gnus-uu-post-news-inews ()
1871   "Posts the composed news article and encoded file.
1872 If no file has been included, the user will be asked for a file."
1873   (interactive)
1874
1875   (let (file-name)
1876
1877     (if gnus-uu-post-inserted-file-name
1878         (setq file-name gnus-uu-post-inserted-file-name)
1879       (setq file-name (gnus-uu-post-insert-binary)))
1880
1881     (gnus-uu-post-encoded file-name gnus-uu-post-threaded))
1882   (setq gnus-uu-post-inserted-file-name nil)
1883   (when gnus-uu-winconf-post-news
1884     (set-window-configuration gnus-uu-winconf-post-news)))
1885
1886 ;; Asks for a file to encode, encodes it and inserts the result in
1887 ;; the current buffer.  Returns the file name the user gave.
1888 (defun gnus-uu-post-insert-binary ()
1889   (let ((uuencode-buffer-name "*uuencode buffer*")
1890         file-path uubuf file-name)
1891
1892     (setq file-path (read-file-name
1893                      "What file do you want to encode? "))
1894     (when (not (file-exists-p file-path))
1895       (error "%s: No such file" file-path))
1896
1897     (goto-char (point-max))
1898     (insert (format "\n%s\n" gnus-uu-post-binary-separator))
1899
1900     (when (string-match "^~/" file-path)
1901       (setq file-path (concat "$HOME" (substring file-path 1))))
1902     (if (string-match "/[^/]*$" file-path)
1903         (setq file-name (substring file-path (1+ (match-beginning 0))))
1904       (setq file-name file-path))
1905
1906     (unwind-protect
1907         (if (save-excursion
1908               (set-buffer (setq uubuf
1909                                 (get-buffer-create uuencode-buffer-name)))
1910               (erase-buffer)
1911               (funcall gnus-uu-post-encode-method file-path file-name))
1912             (insert-buffer-substring uubuf)
1913           (error "Encoding unsuccessful"))
1914       (kill-buffer uubuf))
1915     file-name))
1916
1917 ;; Posts the article and all of the encoded file.
1918 (defun gnus-uu-post-encoded (file-name &optional threaded)
1919   (let ((send-buffer-name "*uuencode send buffer*")
1920         (encoded-buffer-name "*encoded buffer*")
1921         (top-string "[ cut here %s (%s %d/%d) %s gnus-uu ]")
1922         (separator (concat mail-header-separator "\n\n"))
1923         uubuf length parts header i end beg
1924         beg-line minlen buf post-buf whole-len beg-binary end-binary)
1925
1926     (setq post-buf (current-buffer))
1927
1928     (goto-char (point-min))
1929     (when (not (re-search-forward
1930                 (if gnus-uu-post-separate-description
1931                     (concat "^" (regexp-quote gnus-uu-post-binary-separator)
1932                             "$")
1933                   (concat "^" (regexp-quote mail-header-separator) "$"))
1934                 nil t))
1935       (error "Internal error: No binary/header separator"))
1936     (beginning-of-line)
1937     (forward-line 1)
1938     (setq beg-binary (point))
1939     (setq end-binary (point-max))
1940
1941     (save-excursion
1942       (set-buffer (setq uubuf (get-buffer-create encoded-buffer-name)))
1943       (erase-buffer)
1944       (insert-buffer-substring post-buf beg-binary end-binary)
1945       (goto-char (point-min))
1946       (setq length (count-lines 1 (point-max)))
1947       (setq parts (/ length gnus-uu-post-length))
1948       (unless (< (% length gnus-uu-post-length) 4)
1949         (incf parts)))
1950
1951     (when gnus-uu-post-separate-description
1952       (forward-line -1))
1953     (delete-region (point) (point-max))
1954
1955     (goto-char (point-min))
1956     (re-search-forward
1957      (concat "^" (regexp-quote mail-header-separator) "$") nil t)
1958     (beginning-of-line)
1959     (setq header (buffer-substring 1 (point)))
1960
1961     (goto-char (point-min))
1962     (when gnus-uu-post-separate-description
1963       (when (re-search-forward "^Subject: " nil t)
1964         (end-of-line)
1965         (insert (format " (0/%d)" parts)))
1966       (save-excursion
1967         (message-send))
1968       (setq gnus-uu-post-message-id (message-fetch-field "message-id")))
1969
1970     (save-excursion
1971       (setq i 1)
1972       (setq beg 1)
1973       (while (not (> i parts))
1974         (set-buffer (get-buffer-create send-buffer-name))
1975         (erase-buffer)
1976         (insert header)
1977         (when (and threaded gnus-uu-post-message-id)
1978           (insert "References: " gnus-uu-post-message-id "\n"))
1979         (insert separator)
1980         (setq whole-len
1981               (- 62 (length (format top-string "" file-name i parts ""))))
1982         (when (> 1 (setq minlen (/ whole-len 2)))
1983           (setq minlen 1))
1984         (setq
1985          beg-line
1986          (format top-string
1987                  (make-string minlen ?-)
1988                  file-name i parts
1989                  (make-string
1990                   (if (= 0 (% whole-len 2)) (1- minlen) minlen) ?-)))
1991
1992         (goto-char (point-min))
1993         (when (re-search-forward "^Subject: " nil t)
1994           (end-of-line)
1995           (insert (format " (%d/%d)" i parts)))
1996
1997         (goto-char (point-max))
1998         (save-excursion
1999           (set-buffer uubuf)
2000           (goto-char beg)
2001           (if (= i parts)
2002               (goto-char (point-max))
2003             (forward-line gnus-uu-post-length))
2004           (when (and (= (1+ i) parts) (< (count-lines (point) (point-max)) 4))
2005             (forward-line -4))
2006           (setq end (point)))
2007         (insert-buffer-substring uubuf beg end)
2008         (insert beg-line "\n")
2009         (setq beg end)
2010         (incf i)
2011         (goto-char (point-min))
2012         (re-search-forward
2013          (concat "^" (regexp-quote mail-header-separator) "$") nil t)
2014         (beginning-of-line)
2015         (forward-line 2)
2016         (when (re-search-forward
2017                (concat "^" (regexp-quote gnus-uu-post-binary-separator) "$")
2018                nil t)
2019           (replace-match "")
2020           (forward-line 1))
2021         (insert beg-line)
2022         (insert "\n")
2023         (let (message-sent-message-via)
2024           (save-excursion
2025             (message-send))
2026           (setq gnus-uu-post-message-id
2027                 (concat (message-fetch-field "references") " "
2028                         (message-fetch-field "message-id"))))))
2029
2030     (gnus-kill-buffer send-buffer-name)
2031     (gnus-kill-buffer encoded-buffer-name)
2032
2033     (when (not gnus-uu-post-separate-description)
2034       (set-buffer-modified-p nil)
2035       (when (fboundp 'bury-buffer)
2036         (bury-buffer)))))
2037
2038 (provide 'gnus-uu)
2039
2040 ;; gnus-uu.el ends here