lisp/gnus/gnus-uu.el

   1 ;;; gnus-uu.el --- extract (uu)encoded files in Gnus
   2 ;; Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1996, 1997, 1998, 2000,
   3 ;;        2001 Free Software Foundation, Inc.
   4
   5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
   6 ;; Created: 2 Oct 1993
   7 ;; Keyword: news
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software; you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation; either version 2, or (at your option)
  14 ;; any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  24 ;; Boston, MA 02111-1307, USA.
  25
  26 ;;; Commentary:
  27
  28 ;;; Code:
  29
  30 (eval-when-compile (require 'cl))
  31
  32 (require 'gnus)
  33 (require 'gnus-art)
  34 (require 'message)
  35 (require 'gnus-msg)
  36 (require 'mm-decode)
  37
  38 (defgroup gnus-extract nil
  39   "Extracting encoded files."
  40   :prefix "gnus-uu-"
  41   :group 'gnus)
  42
  43 (defgroup gnus-extract-view nil
  44   "Viewwing extracted files."
  45   :group 'gnus-extract)
  46
  47 (defgroup gnus-extract-archive nil
  48   "Extracting encoded archives."
  49   :group 'gnus-extract)
  50
  51 (defgroup gnus-extract-post nil
  52   "Extracting encoded archives."
  53   :prefix "gnus-uu-post"
  54   :group 'gnus-extract)
  55
  56 ;; Default viewing action rules
  57
  58 (defcustom gnus-uu-default-view-rules
  59   '(("\\.te?xt$\\|\\.doc$\\|read.*me\\|\\.c?$\\|\\.h$\\|\\.bat$\\|\\.asm$\\|makefile" "cat %s | sed 's/\r$//'")
  60     ("\\.pas$" "cat %s | sed 's/\r$//'")
  61     ("\\.[1-9]$" "groff -mandoc -Tascii %s | sed s/\b.//g")
  62     ("\\.\\(jpe?g\\|gif\\|tiff?\\|p[pgb]m\\|xwd\\|xbm\\|pcx\\)$" "display")
  63     ("\\.tga$" "tgatoppm %s | ee -")
  64     ("\\.\\(wav\\|aiff\\|hcom\\|u[blw]\\|s[bfw]\\|voc\\|smp\\)$"
  65      "sox -v .5 %s -t .au -u - > /dev/audio")
  66     ("\\.au$" "cat %s > /dev/audio")
  67     ("\\.midi?$" "playmidi -f")
  68     ("\\.mod$" "str32")
  69     ("\\.ps$" "ghostview")
  70     ("\\.dvi$" "xdvi")
  71     ("\\.html$" "xmosaic")
  72     ("\\.mpe?g$" "mpeg_play")
  73     ("\\.\\(flc\\|fli\\|rle\\|iff\\|pfx\\|avi\\|sme\\|rpza\\|dl\\|qt\\|rsrc\\|mov\\)$" "xanim")
  74     ("\\.\\(tar\\|arj\\|zip\\|zoo\\|arc\\|gz\\|Z\\|lzh\\|ar\\|lha\\)$"
  75      "gnus-uu-archive"))
  76   "*Default actions to be taken when the user asks to view a file.
  77 To change the behaviour, you can either edit this variable or set
  78 `gnus-uu-user-view-rules' to something useful.
  79
  80 For example:
  81
  82 To make gnus-uu use 'xli' to display JPEG and GIF files, put the
  83 following in your .emacs file:
  84
  85   (setq gnus-uu-user-view-rules '((\"jpg$\\\\|gif$\" \"xli\")))
  86
  87 Both these variables are lists of lists with two string elements.  The
  88 first string is a regular expression.  If the file name matches this
  89 regular expression, the command in the second string is executed with
  90 the file as an argument.
  91
  92 If the command string contains \"%s\", the file name will be inserted
  93 at that point in the command string.  If there's no \"%s\" in the
  94 command string, the file name will be appended to the command string
  95 before executing.
  96
  97 There are several user variables to tailor the behaviour of gnus-uu to
  98 your needs.  First we have `gnus-uu-user-view-rules', which is the
  99 variable gnus-uu first consults when trying to decide how to view a
 100 file.  If this variable contains no matches, gnus-uu examines the
 101 default rule variable provided in this package.  If gnus-uu finds no
 102 match here, it uses `gnus-uu-user-view-rules-end' to try to make a
 103 match."
 104   :group 'gnus-extract-view
 105   :type '(repeat (group regexp (string :tag "Command"))))
 106
 107 (defcustom gnus-uu-user-view-rules nil
 108   "What actions are to be taken to view a file.
 109 See the documentation on the `gnus-uu-default-view-rules' variable for
 110 details."
 111   :group 'gnus-extract-view
 112   :type '(repeat (group regexp (string :tag "Command"))))
 113
 114 (defcustom gnus-uu-user-view-rules-end
 115   '(("" "file"))
 116   "*What actions are to be taken if no rule matched the file name.
 117 See the documentation on the `gnus-uu-default-view-rules' variable for
 118 details."
 119   :group 'gnus-extract-view
 120   :type '(repeat (group regexp (string :tag "Command"))))
 121
 122 ;; Default unpacking commands
 123
 124 (defcustom gnus-uu-default-archive-rules
 125   '(("\\.tar$" "tar xf")
 126     ("\\.zip$" "unzip -o")
 127     ("\\.ar$" "ar x")
 128     ("\\.arj$" "unarj x")
 129     ("\\.zoo$" "zoo -e")
 130     ("\\.\\(lzh\\|lha\\)$" "lha x")
 131     ("\\.Z$" "uncompress")
 132     ("\\.gz$" "gunzip")
 133     ("\\.arc$" "arc -x"))
 134   "*See `gnus-uu-user-archive-rules'."
 135   :group 'gnus-extract-archive
 136   :type '(repeat (group regexp (string :tag "Command"))))
 137
 138 (defvar gnus-uu-destructive-archivers
 139   (list "uncompress" "gunzip"))
 140
 141 (defcustom gnus-uu-user-archive-rules nil
 142   "A list that can be set to override the default archive unpacking commands.
 143 To use, for instance, 'untar' to unpack tar files and 'zip -x' to
 144 unpack zip files, say the following:
 145   (setq gnus-uu-user-archive-rules
 146     '((\"\\\\.tar$\" \"untar\")
 147       (\"\\\\.zip$\" \"zip -x\")))"
 148   :group 'gnus-extract-archive
 149   :type '(repeat (group regexp (string :tag "Command"))))
 150
 151 (defcustom gnus-uu-ignore-files-by-name nil
 152   "*A regular expression saying what files should not be viewed based on name.
 153 If, for instance, you want gnus-uu to ignore all .au and .wav files,
 154 you could say something like
 155
 156   (setq gnus-uu-ignore-files-by-name \"\\\\.au$\\\\|\\\\.wav$\")
 157
 158 Note that this variable can be used in conjunction with the
 159 `gnus-uu-ignore-files-by-type' variable."
 160   :group 'gnus-extract
 161   :type '(choice (const :tag "off" nil)
 162                  (regexp :format "%v")))
 163
 164 (defcustom gnus-uu-ignore-files-by-type nil
 165   "*A regular expression saying what files that shouldn't be viewed, based on MIME file type.
 166 If, for instance, you want gnus-uu to ignore all audio files and all mpegs,
 167 you could say something like
 168
 169   (setq gnus-uu-ignore-files-by-type \"audio/\\\\|video/mpeg\")
 170
 171 Note that this variable can be used in conjunction with the
 172 `gnus-uu-ignore-files-by-name' variable."
 173   :group 'gnus-extract
 174   :type '(choice (const :tag "off" nil)
 175                  (regexp :format "%v")))
 176
 177 ;; Pseudo-MIME support
 178
 179 (defconst gnus-uu-ext-to-mime-list
 180   '(("\\.gif$" "image/gif")
 181     ("\\.jpe?g$" "image/jpeg")
 182     ("\\.tiff?$" "image/tiff")
 183     ("\\.xwd$" "image/xwd")
 184     ("\\.pbm$" "image/pbm")
 185     ("\\.pgm$" "image/pgm")
 186     ("\\.ppm$" "image/ppm")
 187     ("\\.xbm$" "image/xbm")
 188     ("\\.pcx$" "image/pcx")
 189     ("\\.tga$" "image/tga")
 190     ("\\.ps$" "image/postscript")
 191     ("\\.fli$" "video/fli")
 192     ("\\.wav$" "audio/wav")
 193     ("\\.aiff$" "audio/aiff")
 194     ("\\.hcom$" "audio/hcom")
 195     ("\\.voc$" "audio/voc")
 196     ("\\.smp$" "audio/smp")
 197     ("\\.mod$" "audio/mod")
 198     ("\\.dvi$" "image/dvi")
 199     ("\\.mpe?g$" "video/mpeg")
 200     ("\\.au$" "audio/basic")
 201     ("\\.\\(te?xt\\|doc\\|c\\|h\\)$" "text/plain")
 202     ("\\.\\(c\\|h\\)$" "text/source")
 203     ("read.*me" "text/plain")
 204     ("\\.html$" "text/html")
 205     ("\\.bat$" "text/bat")
 206     ("\\.[1-6]$" "text/man")
 207     ("\\.flc$" "video/flc")
 208     ("\\.rle$" "video/rle")
 209     ("\\.pfx$" "video/pfx")
 210     ("\\.avi$" "video/avi")
 211     ("\\.sme$" "video/sme")
 212     ("\\.rpza$" "video/prza")
 213     ("\\.dl$" "video/dl")
 214     ("\\.qt$" "video/qt")
 215     ("\\.rsrc$" "video/rsrc")
 216     ("\\..*$" "unknown/unknown")))
 217
 218 ;; Various variables users may set
 219
 220 (defcustom gnus-uu-tmp-dir
 221   (cond ((fboundp 'temp-directory) (temp-directory))
 222         ((boundp 'temporary-file-directory) temporary-file-directory)
 223         ("/tmp/"))
 224   "*Variable saying where gnus-uu is to do its work.
 225 Default is \"/tmp/\"."
 226   :group 'gnus-extract
 227   :type 'directory)
 228
 229 (defcustom gnus-uu-do-not-unpack-archives nil
 230   "*Non-nil means that gnus-uu won't peek inside archives looking for files to display.
 231 Default is nil."
 232   :group 'gnus-extract-archive
 233   :type 'boolean)
 234
 235 (defcustom gnus-uu-ignore-default-view-rules nil
 236   "*Non-nil means that gnus-uu will ignore the default viewing rules.
 237 Only the user viewing rules will be consulted.  Default is nil."
 238   :group 'gnus-extract-view
 239   :type 'boolean)
 240
 241 (defcustom gnus-uu-grabbed-file-functions nil
 242   "Functions run on each file after successful decoding.
 243 They will be called with the name of the file as the argument.
 244 Likely functions you can use in this list are `gnus-uu-grab-view'
 245 and `gnus-uu-grab-move'."
 246   :group 'gnus-extract
 247   :options '(gnus-uu-grab-view gnus-uu-grab-move)
 248   :type 'hook)
 249
 250 (defcustom gnus-uu-ignore-default-archive-rules nil
 251   "*Non-nil means that gnus-uu will ignore the default archive unpacking commands.
 252 Only the user unpacking commands will be consulted.  Default is nil."
 253   :group 'gnus-extract-archive
 254   :type 'boolean)
 255
 256 (defcustom gnus-uu-kill-carriage-return t
 257   "*Non-nil means that gnus-uu will strip all carriage returns from articles.
 258 Default is t."
 259   :group 'gnus-extract
 260   :type 'boolean)
 261
 262 (defcustom gnus-uu-view-with-metamail nil
 263   "*Non-nil means that files will be viewed with metamail.
 264 The gnus-uu viewing functions will be ignored and gnus-uu will try
 265 to guess at a content-type based on file name suffixes.  Default
 266 it nil."
 267   :group 'gnus-extract
 268   :type 'boolean)
 269
 270 (defcustom gnus-uu-unmark-articles-not-decoded nil
 271   "*Non-nil means that gnus-uu will mark articles that were unsuccessfully decoded as unread.
 272 Default is nil."
 273   :group 'gnus-extract
 274   :type 'boolean)
 275
 276 (defcustom gnus-uu-correct-stripped-uucode nil
 277   "*Non-nil means that gnus-uu will *try* to fix uuencoded files that have had trailing spaces deleted.
 278 Default is nil."
 279   :group 'gnus-extract
 280   :type 'boolean)
 281
 282 (defcustom gnus-uu-save-in-digest nil
 283   "*Non-nil means that gnus-uu, when asked to save without decoding, will save in digests.
 284 If this variable is nil, gnus-uu will just save everything in a
 285 file without any embellishments.  The digesting almost conforms to RFC1153 -
 286 no easy way to specify any meaningful volume and issue numbers were found,
 287 so I simply dropped them."
 288   :group 'gnus-extract
 289   :type 'boolean)
 290
 291 (defcustom gnus-uu-pre-uudecode-hook nil
 292   "Hook run before sending a message to uudecode."
 293   :group 'gnus-extract
 294   :type 'hook)
 295
 296 (defcustom gnus-uu-digest-headers
 297   '("^Date:" "^From:" "^To:" "^Cc:" "^Subject:" "^Message-ID:" "^Keywords:"
 298     "^Summary:" "^References:" "^Content-Type:" "^Content-Transfer-Encoding:"
 299     "^MIME-Version:" "^Content-Disposition:" "^Content-Description:"
 300     "^Content-ID:")
 301   "*List of regexps to match headers included in digested messages.
 302 The headers will be included in the sequence they are matched."
 303   :group 'gnus-extract
 304   :type '(repeat regexp))
 305
 306 (defcustom gnus-uu-save-separate-articles nil
 307   "*Non-nil means that gnus-uu will save articles in separate files."
 308   :group 'gnus-extract
 309   :type 'boolean)
 310
 311 (defcustom gnus-uu-be-dangerous 'ask
 312   "*Specifies what to do if unusual situations arise during decoding.
 313 If nil, be as conservative as possible.  If t, ignore things that
 314 didn't work, and overwrite existing files.  Otherwise, ask each time."
 315   :group 'gnus-extract
 316   :type '(choice (const :tag "conservative" nil)
 317                  (const :tag "ask" ask)
 318                  (const :tag "liberal" t)))
 319
 320 ;; Internal variables
 321
 322 (defvar gnus-uu-saved-article-name nil)
 323
 324 (defvar gnus-uu-begin-string "^begin[ \t]+[0-7][0-7][0-7][ \t]+\\(.*\\)$")
 325 (defvar gnus-uu-end-string "^end[ \t]*$")
 326
 327 (defvar gnus-uu-body-line "^M")
 328 (let ((i 61))
 329   (while (> (setq i (1- i)) 0)
 330     (setq gnus-uu-body-line (concat gnus-uu-body-line "[^a-z]")))
 331   (setq gnus-uu-body-line (concat gnus-uu-body-line ".?$")))
 332
 333 ;"^M.............................................................?$"
 334
 335 (defvar gnus-uu-shar-begin-string "^#! */bin/sh")
 336
 337 (defvar gnus-uu-shar-file-name nil)
 338 (defvar gnus-uu-shar-name-marker
 339   "begin [0-7][0-7][0-7][ \t]+\\(\\(\\w\\|\\.\\)*\\b\\)")
 340
 341 (defvar gnus-uu-postscript-begin-string "^%!PS-")
 342 (defvar gnus-uu-postscript-end-string "^%%EOF$")
 343
 344 (defvar gnus-uu-file-name nil)
 345 (defvar gnus-uu-uudecode-process nil)
 346 (defvar gnus-uu-binhex-article-name nil)
 347
 348 (defvar gnus-uu-work-dir nil)
 349
 350 (defvar gnus-uu-output-buffer-name " *Gnus UU Output*")
 351
 352 (defvar gnus-uu-default-dir gnus-article-save-directory)
 353 (defvar gnus-uu-digest-from-subject nil)
 354 (defvar gnus-uu-digest-buffer nil)
 355
 356 ;; Keymaps
 357
 358 (gnus-define-keys (gnus-uu-mark-map "P" gnus-summary-mark-map)
 359   "p" gnus-summary-mark-as-processable
 360   "u" gnus-summary-unmark-as-processable
 361   "U" gnus-summary-unmark-all-processable
 362   "v" gnus-uu-mark-over
 363   "s" gnus-uu-mark-series
 364   "r" gnus-uu-mark-region
 365   "g" gnus-uu-unmark-region
 366   "R" gnus-uu-mark-by-regexp
 367   "G" gnus-uu-unmark-by-regexp
 368   "t" gnus-uu-mark-thread
 369   "T" gnus-uu-unmark-thread
 370   "a" gnus-uu-mark-all
 371   "b" gnus-uu-mark-buffer
 372   "S" gnus-uu-mark-sparse
 373   "k" gnus-summary-kill-process-mark
 374   "y" gnus-summary-yank-process-mark
 375   "w" gnus-summary-save-process-mark
 376   "i" gnus-uu-invert-processable)
 377
 378 (gnus-define-keys (gnus-uu-extract-map "X" gnus-summary-mode-map)
 379   ;;"x" gnus-uu-extract-any
 380   "m" gnus-summary-save-parts
 381   "u" gnus-uu-decode-uu
 382   "U" gnus-uu-decode-uu-and-save
 383   "s" gnus-uu-decode-unshar
 384   "S" gnus-uu-decode-unshar-and-save
 385   "o" gnus-uu-decode-save
 386   "O" gnus-uu-decode-save
 387   "b" gnus-uu-decode-binhex
 388   "B" gnus-uu-decode-binhex
 389   "p" gnus-uu-decode-postscript
 390   "P" gnus-uu-decode-postscript-and-save)
 391
 392 (gnus-define-keys
 393     (gnus-uu-extract-view-map "v" gnus-uu-extract-map)
 394   "u" gnus-uu-decode-uu-view
 395   "U" gnus-uu-decode-uu-and-save-view
 396   "s" gnus-uu-decode-unshar-view
 397   "S" gnus-uu-decode-unshar-and-save-view
 398   "o" gnus-uu-decode-save-view
 399   "O" gnus-uu-decode-save-view
 400   "b" gnus-uu-decode-binhex-view
 401   "B" gnus-uu-decode-binhex-view
 402   "p" gnus-uu-decode-postscript-view
 403   "P" gnus-uu-decode-postscript-and-save-view)
 404
 405
 406 ;; Commands.
 407
 408 (defun gnus-uu-decode-uu (&optional n)
 409   "Uudecodes the current article."
 410   (interactive "P")
 411   (gnus-uu-decode-with-method 'gnus-uu-uustrip-article n))
 412
 413 (defun gnus-uu-decode-uu-and-save (n dir)
 414   "Decodes and saves the resulting file."
 415   (interactive
 416    (list current-prefix-arg
 417          (file-name-as-directory
 418           (read-file-name "Uudecode and save in dir: "
 419                           gnus-uu-default-dir
 420                           gnus-uu-default-dir t))))
 421   (gnus-uu-decode-with-method 'gnus-uu-uustrip-article n dir nil nil t))
 422
 423 (defun gnus-uu-decode-unshar (&optional n)
 424   "Unshars the current article."
 425   (interactive "P")
 426   (gnus-uu-decode-with-method 'gnus-uu-unshar-article n nil nil 'scan t))
 427
 428 (defun gnus-uu-decode-unshar-and-save (n dir)
 429   "Unshars and saves the current article."
 430   (interactive
 431    (list current-prefix-arg
 432          (file-name-as-directory
 433           (read-file-name "Unshar and save in dir: "
 434                           gnus-uu-default-dir
 435                           gnus-uu-default-dir t))))
 436   (gnus-uu-decode-with-method 'gnus-uu-unshar-article n dir nil 'scan t))
 437
 438 (defun gnus-uu-decode-save (n file)
 439   "Saves the current article."
 440   (interactive
 441    (list current-prefix-arg
 442          (read-file-name
 443           (if gnus-uu-save-separate-articles
 444               "Save articles is dir: "
 445             "Save articles in file: ")
 446           gnus-uu-default-dir
 447           gnus-uu-default-dir)))
 448   (setq gnus-uu-saved-article-name file)
 449   (gnus-uu-decode-with-method 'gnus-uu-save-article n nil t))
 450
 451 (defun gnus-uu-decode-binhex (n dir)
 452   "Unbinhexes the current article."
 453   (interactive
 454    (list current-prefix-arg
 455          (file-name-as-directory
 456           (read-file-name "Unbinhex and save in dir: "
 457                           gnus-uu-default-dir
 458                           gnus-uu-default-dir))))
 459   (setq gnus-uu-binhex-article-name
 460         (make-temp-name (concat gnus-uu-work-dir "binhex")))
 461   (gnus-uu-decode-with-method 'gnus-uu-binhex-article n dir))
 462
 463 (defun gnus-uu-decode-uu-view (&optional n)
 464   "Uudecodes and views the current article."
 465   (interactive "P")
 466   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 467     (gnus-uu-decode-uu n)))
 468
 469 (defun gnus-uu-decode-uu-and-save-view (n dir)
 470   "Decodes, views and saves the resulting file."
 471   (interactive
 472    (list current-prefix-arg
 473          (read-file-name "Uudecode, 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-uu-and-save n dir)))
 478
 479 (defun gnus-uu-decode-unshar-view (&optional n)
 480   "Unshars and views the current article."
 481   (interactive "P")
 482   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 483     (gnus-uu-decode-unshar n)))
 484
 485 (defun gnus-uu-decode-unshar-and-save-view (n dir)
 486   "Unshars and saves the current article."
 487   (interactive
 488    (list current-prefix-arg
 489          (read-file-name "Unshar, view and save in dir: "
 490                          gnus-uu-default-dir
 491                          gnus-uu-default-dir t)))
 492   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 493     (gnus-uu-decode-unshar-and-save n dir)))
 494
 495 (defun gnus-uu-decode-save-view (n file)
 496   "Saves and views the current article."
 497   (interactive
 498    (list current-prefix-arg
 499          (read-file-name  (if gnus-uu-save-separate-articles
 500                               "Save articles is dir: "
 501                             "Save articles in file: ")
 502                           gnus-uu-default-dir gnus-uu-default-dir)))
 503   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 504     (gnus-uu-decode-save n file)))
 505
 506 (defun gnus-uu-decode-binhex-view (n file)
 507   "Unbinhexes and views the current article."
 508   (interactive
 509    (list current-prefix-arg
 510          (read-file-name "Unbinhex, view and save in dir: "
 511                          gnus-uu-default-dir gnus-uu-default-dir)))
 512   (setq gnus-uu-binhex-article-name
 513         (make-temp-name (concat gnus-uu-work-dir "binhex")))
 514   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 515     (gnus-uu-decode-binhex n file)))
 516
 517
 518 ;; Digest and forward articles
 519
 520 (defun gnus-uu-digest-mail-forward (&optional n post)
 521   "Digests and forwards all articles in this series."
 522   (interactive "P")
 523   (let ((gnus-uu-save-in-digest t)
 524         (file (make-temp-name (nnheader-concat gnus-uu-tmp-dir "forward")))
 525         (message-forward-as-mime message-forward-as-mime)
 526         (mail-parse-charset gnus-newsgroup-charset)
 527         (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
 528         gnus-uu-digest-buffer subject from)
 529     (if (and n (not (numberp n)))
 530         (setq message-forward-as-mime (not message-forward-as-mime)
 531               n nil))
 532     (gnus-setup-message 'forward
 533       (setq gnus-uu-digest-from-subject nil)
 534       (setq gnus-uu-digest-buffer
 535             (gnus-get-buffer-create " *gnus-uu-forward*"))
 536       (gnus-uu-decode-save n file)
 537       (switch-to-buffer gnus-uu-digest-buffer)
 538       (let ((fs gnus-uu-digest-from-subject))
 539         (when fs
 540           (setq from (caar fs)
 541                 subject (gnus-simplify-subject-fuzzy (cdar fs))
 542                 fs (cdr fs))
 543           (while (and fs (or from subject))
 544             (when from
 545               (unless (string= from (caar fs))
 546                 (setq from nil)))
 547             (when subject
 548               (unless (string= (gnus-simplify-subject-fuzzy (cdar fs))
 549                                subject)
 550                 (setq subject nil)))
 551             (setq fs (cdr fs))))
 552         (unless subject
 553           (setq subject "Digested Articles"))
 554         (unless from
 555           (setq from
 556                 (if (gnus-news-group-p gnus-newsgroup-name)
 557                     gnus-newsgroup-name
 558                   "Various"))))
 559       (goto-char (point-min))
 560       (when (re-search-forward "^Subject: ")
 561         (delete-region (point) (gnus-point-at-eol))
 562         (insert subject))
 563       (goto-char (point-min))
 564       (when (re-search-forward "^From:")
 565         (delete-region (point) (gnus-point-at-eol))
 566         (insert " " from))
 567       (let ((message-forward-decoded-p t))
 568         (message-forward post t)))
 569     (setq gnus-uu-digest-from-subject nil)))
 570
 571 (defun gnus-uu-digest-post-forward (&optional n)
 572   "Digest and forward to a newsgroup."
 573   (interactive "P")
 574   (gnus-uu-digest-mail-forward n t))
 575
 576 ;; Process marking.
 577
 578 (defun gnus-uu-mark-by-regexp (regexp &optional unmark)
 579   "Set the process mark on articles whose subjects match REGEXP.
 580 When called interactively, prompt for REGEXP.
 581 Optional UNMARK non-nil means unmark instead of mark."
 582   (interactive "sMark (regexp): \nP")
 583   (let ((articles (gnus-uu-find-articles-matching regexp)))
 584     (while articles
 585       (if unmark
 586           (gnus-summary-remove-process-mark (pop articles))
 587         (gnus-summary-set-process-mark (pop articles))))
 588     (message ""))
 589   (gnus-summary-position-point))
 590
 591 (defun gnus-uu-unmark-by-regexp (regexp)
 592   "Remove the process mark from articles whose subjects match REGEXP.
 593 When called interactively, prompt for REGEXP."
 594   (interactive "sUnmark (regexp): ")
 595   (gnus-uu-mark-by-regexp regexp t))
 596
 597 (defun gnus-uu-mark-series ()
 598   "Mark the current series with the process mark."
 599   (interactive)
 600   (let ((articles (gnus-uu-find-articles-matching)))
 601     (while articles
 602       (gnus-summary-set-process-mark (car articles))
 603       (setq articles (cdr articles)))
 604     (message ""))
 605   (gnus-summary-position-point))
 606
 607 (defun gnus-uu-mark-region (beg end &optional unmark)
 608   "Set the process mark on all articles between point and mark."
 609   (interactive "r")
 610   (save-excursion
 611     (goto-char beg)
 612     (while (< (point) end)
 613       (if unmark
 614           (gnus-summary-remove-process-mark (gnus-summary-article-number))
 615         (gnus-summary-set-process-mark (gnus-summary-article-number)))
 616       (forward-line 1)))
 617   (gnus-summary-position-point))
 618
 619 (defun gnus-uu-unmark-region (beg end)
 620   "Remove the process mark from all articles between point and mark."
 621   (interactive "r")
 622   (gnus-uu-mark-region beg end t))
 623
 624 (defun gnus-uu-mark-buffer ()
 625   "Set the process mark on all articles in the buffer."
 626   (interactive)
 627   (gnus-uu-mark-region (point-min) (point-max)))
 628
 629 (defun gnus-uu-unmark-buffer ()
 630   "Remove the process mark on all articles in the buffer."
 631   (interactive)
 632   (gnus-uu-mark-region (point-min) (point-max) t))
 633
 634 (defun gnus-uu-mark-thread ()
 635   "Marks all articles downwards in this thread."
 636   (interactive)
 637   (gnus-save-hidden-threads
 638     (let ((level (gnus-summary-thread-level)))
 639       (while (and (gnus-summary-set-process-mark
 640                    (gnus-summary-article-number))
 641                   (zerop (gnus-summary-next-subject 1 nil t))
 642                   (> (gnus-summary-thread-level) level)))))
 643   (gnus-summary-position-point))
 644
 645 (defun gnus-uu-unmark-thread ()
 646   "Unmarks all articles downwards in this thread."
 647   (interactive)
 648   (let ((level (gnus-summary-thread-level)))
 649     (while (and (gnus-summary-remove-process-mark
 650                  (gnus-summary-article-number))
 651                 (zerop (gnus-summary-next-subject 1))
 652                 (> (gnus-summary-thread-level) level))))
 653   (gnus-summary-position-point))
 654
 655 (defun gnus-uu-invert-processable ()
 656   "Invert the list of process-marked articles."
 657   (interactive)
 658   (let ((data gnus-newsgroup-data)
 659         number)
 660     (save-excursion
 661       (while data
 662         (if (memq (setq number (gnus-data-number (pop data)))
 663                   gnus-newsgroup-processable)
 664             (gnus-summary-remove-process-mark number)
 665           (gnus-summary-set-process-mark number)))))
 666   (gnus-summary-position-point))
 667
 668 (defun gnus-uu-mark-over (&optional score)
 669   "Mark all articles with a score over SCORE (the prefix)."
 670   (interactive "P")
 671   (let ((score (or score gnus-summary-default-score 0))
 672         (data gnus-newsgroup-data))
 673     (save-excursion
 674       (while data
 675         (when (> (or (cdr (assq (gnus-data-number (car data))
 676                                 gnus-newsgroup-scored))
 677                      gnus-summary-default-score 0)
 678                  score)
 679           (gnus-summary-set-process-mark (caar data)))
 680         (setq data (cdr data))))
 681     (gnus-summary-position-point)))
 682
 683 (defun gnus-uu-mark-sparse ()
 684   "Mark all series that have some articles marked."
 685   (interactive)
 686   (let ((marked (nreverse gnus-newsgroup-processable))
 687         subject articles total headers)
 688     (unless marked
 689       (error "No articles marked with the process mark"))
 690     (setq gnus-newsgroup-processable nil)
 691     (save-excursion
 692       (while marked
 693         (and (vectorp (setq headers
 694                             (gnus-summary-article-header (car marked))))
 695              (setq subject (mail-header-subject headers)
 696                    articles (gnus-uu-find-articles-matching
 697                              (gnus-uu-reginize-string subject))
 698                    total (nconc total articles)))
 699         (while articles
 700           (gnus-summary-set-process-mark (car articles))
 701           (setcdr marked (delq (car articles) (cdr marked)))
 702           (setq articles (cdr articles)))
 703         (setq marked (cdr marked)))
 704       (setq gnus-newsgroup-processable (nreverse total)))
 705     (gnus-summary-position-point)))
 706
 707 (defun gnus-uu-mark-all ()
 708   "Mark all articles in \"series\" order."
 709   (interactive)
 710   (setq gnus-newsgroup-processable nil)
 711   (save-excursion
 712     (let ((data gnus-newsgroup-data)
 713           number)
 714       (while data
 715         (when (and (not (memq (setq number (gnus-data-number (car data)))
 716                               gnus-newsgroup-processable))
 717                    (vectorp (gnus-data-header (car data))))
 718           (gnus-summary-goto-subject number)
 719           (gnus-uu-mark-series))
 720         (setq data (cdr data)))))
 721   (gnus-summary-position-point))
 722
 723 ;; All PostScript functions written by Erik Selberg <speed@cs.washington.edu>.
 724
 725 (defun gnus-uu-decode-postscript (&optional n)
 726   "Gets postscript of the current article."
 727   (interactive "P")
 728   (gnus-uu-decode-with-method 'gnus-uu-decode-postscript-article n))
 729
 730 (defun gnus-uu-decode-postscript-view (&optional n)
 731   "Gets and views the current article."
 732   (interactive "P")
 733   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 734     (gnus-uu-decode-postscript n)))
 735
 736 (defun gnus-uu-decode-postscript-and-save (n dir)
 737   "Extracts postscript and saves the current article."
 738   (interactive
 739    (list current-prefix-arg
 740          (file-name-as-directory
 741           (read-file-name "Save in dir: "
 742                           gnus-uu-default-dir
 743                           gnus-uu-default-dir t))))
 744   (gnus-uu-decode-with-method 'gnus-uu-decode-postscript-article
 745                               n dir nil nil t))
 746
 747 (defun gnus-uu-decode-postscript-and-save-view (n dir)
 748   "Decodes, views and saves the resulting file."
 749   (interactive
 750    (list current-prefix-arg
 751          (read-file-name "Where do you want to save the file(s)? "
 752                          gnus-uu-default-dir
 753                          gnus-uu-default-dir t)))
 754   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 755     (gnus-uu-decode-postscript-and-save n dir)))
 756
 757
 758 ;; Internal functions.
 759
 760 (defun gnus-uu-decode-with-method (method n &optional save not-insert
 761                                           scan cdir)
 762   (gnus-uu-initialize scan)
 763   (when save
 764     (setq gnus-uu-default-dir save))
 765   ;; Create the directory we save to.
 766   (when (and scan cdir save
 767              (not (file-exists-p save)))
 768     (make-directory save t))
 769   (let ((articles (gnus-uu-get-list-of-articles n))
 770         files)
 771     (setq files (gnus-uu-grab-articles articles method t))
 772     (let ((gnus-current-article (car articles)))
 773       (when scan
 774         (setq files (gnus-uu-scan-directory gnus-uu-work-dir))))
 775     (when save
 776       (gnus-uu-save-files files save))
 777     (when (eq gnus-uu-do-not-unpack-archives nil)
 778       (setq files (gnus-uu-unpack-files files)))
 779     (setq files (nreverse (gnus-uu-get-actions files)))
 780     (or not-insert (not gnus-insert-pseudo-articles)
 781         (gnus-summary-insert-pseudos files save))))
 782
 783 (defun gnus-uu-scan-directory (dir &optional rec)
 784   "Return a list of all files under DIR."
 785   (let ((files (directory-files dir t))
 786         out file)
 787     (while (setq file (pop files))
 788       (unless (member (file-name-nondirectory file) '("." ".."))
 789         (push (list (cons 'name file)
 790                     (cons 'article gnus-current-article))
 791               out)
 792         (when (file-directory-p file)
 793           (setq out (nconc (gnus-uu-scan-directory file t) out)))))
 794     (if rec
 795         out
 796       (nreverse out))))
 797
 798 (defun gnus-uu-save-files (files dir)
 799   "Save FILES in DIR."
 800   (let ((len (length files))
 801         (reg (concat "^" (regexp-quote gnus-uu-work-dir)))
 802         to-file file fromdir)
 803     (while (setq file (cdr (assq 'name (pop files))))
 804       (when (file-exists-p file)
 805         (string-match reg file)
 806         (setq fromdir (substring file (match-end 0)))
 807         (if (file-directory-p file)
 808             (gnus-make-directory (concat dir fromdir))
 809           (setq to-file (concat dir fromdir))
 810           (when (or (not (file-exists-p to-file))
 811                     (eq gnus-uu-be-dangerous t)
 812                     (and gnus-uu-be-dangerous
 813                          (gnus-y-or-n-p (format "%s exists; overwrite? "
 814                                                 to-file))))
 815             (copy-file file to-file t t)))))
 816     (gnus-message 5 "Saved %d file%s" len (if (= len 1) "" "s"))))
 817
 818 ;; Functions for saving and possibly digesting articles without
 819 ;; any decoding.
 820
 821 ;; Function called by gnus-uu-grab-articles to treat each article.
 822 (defun gnus-uu-save-article (buffer in-state)
 823   (cond
 824    (gnus-uu-save-separate-articles
 825     (save-excursion
 826       (set-buffer buffer)
 827       (let ((coding-system-for-write mm-text-coding-system))
 828         (gnus-write-buffer
 829          (concat gnus-uu-saved-article-name gnus-current-article)))
 830       (cond ((eq in-state 'first) (list gnus-uu-saved-article-name 'begin))
 831             ((eq in-state 'first-and-last) (list gnus-uu-saved-article-name
 832                                                  'begin 'end))
 833             ((eq in-state 'last) (list 'end))
 834             (t (list 'middle)))))
 835    ((not gnus-uu-save-in-digest)
 836     (save-excursion
 837       (set-buffer buffer)
 838       (write-region (point-min) (point-max) gnus-uu-saved-article-name t)
 839       (cond ((eq in-state 'first) (list gnus-uu-saved-article-name 'begin))
 840             ((eq in-state 'first-and-last) (list gnus-uu-saved-article-name
 841                                                  'begin 'end))
 842             ((eq in-state 'last) (list 'end))
 843             (t (list 'middle)))))
 844    (t
 845     (let ((header (gnus-summary-article-header)))
 846       (push (cons (mail-header-from header)
 847                   (mail-header-subject header))
 848             gnus-uu-digest-from-subject))
 849     (let ((name (file-name-nondirectory gnus-uu-saved-article-name))
 850           beg subj headers headline sorthead body end-string state)
 851       (if (or (eq in-state 'first)
 852               (eq in-state 'first-and-last))
 853           (progn
 854             (setq state (list 'begin))
 855             (save-excursion
 856               (set-buffer (gnus-get-buffer-create "*gnus-uu-body*"))
 857               (erase-buffer))
 858             (save-excursion
 859               (set-buffer (gnus-get-buffer-create "*gnus-uu-pre*"))
 860               (erase-buffer)
 861               (insert (format
 862                        "Date: %s\nFrom: %s\nSubject: %s Digest\n\n"
 863                        (current-time-string) name name))
 864               (when (and message-forward-as-mime gnus-uu-digest-buffer)
 865                 ;; The default part in multipart/digest is message/rfc822.
 866                 ;; Subject is a fake head.
 867                 (insert "<#part type=text/plain>\nSubject: Topics\n\n"))
 868               (insert "Topics:\n")))
 869         (when (not (eq in-state 'end))
 870           (setq state (list 'middle))))
 871       (save-excursion
 872         (set-buffer "*gnus-uu-body*")
 873         (goto-char (setq beg (point-max)))
 874         (save-excursion
 875           (save-restriction
 876             (set-buffer buffer)
 877             (let (buffer-read-only)
 878               (gnus-set-text-properties (point-min) (point-max) nil)
 879               ;; These two are necessary for XEmacs 19.12 fascism.
 880               (put-text-property (point-min) (point-max) 'invisible nil)
 881               (put-text-property (point-min) (point-max) 'intangible nil))
 882             (when (and message-forward-as-mime
 883                        message-forward-show-mml
 884                        gnus-uu-digest-buffer)
 885               (mm-enable-multibyte)
 886               (mime-to-mml))
 887             (goto-char (point-min))
 888             (re-search-forward "\n\n")
 889             (unless (and message-forward-as-mime gnus-uu-digest-buffer)
 890               ;; Quote all 30-dash lines.
 891               (save-excursion
 892                 (while (re-search-forward "^-" nil t)
 893                   (beginning-of-line)
 894                   (delete-char 1)
 895                   (insert "- "))))
 896             (setq body (buffer-substring (1- (point)) (point-max)))
 897             (narrow-to-region (point-min) (point))
 898             (if (not (setq headers gnus-uu-digest-headers))
 899                 (setq sorthead (buffer-substring (point-min) (point-max)))
 900               (while headers
 901                 (setq headline (car headers))
 902                 (setq headers (cdr headers))
 903                 (goto-char (point-min))
 904                 (while (re-search-forward headline nil t)
 905                   (setq sorthead
 906                         (concat sorthead
 907                                 (buffer-substring
 908                                  (match-beginning 0)
 909                                  (or (and (re-search-forward "^[^ \t]" nil t)
 910                                           (1- (point)))
 911                                      (progn (forward-line 1) (point)))))))))
 912             (widen)))
 913         (if (and message-forward-as-mime gnus-uu-digest-buffer)
 914           (if message-forward-show-mml
 915               (progn
 916                 (insert "\n<#mml type=message/rfc822>\n")
 917                 (insert sorthead) (goto-char (point-max))
 918                 (insert body) (goto-char (point-max))
 919                 (insert "\n<#/mml>\n"))
 920             (let ((buf (mml-generate-new-buffer " *mml*")))
 921               (with-current-buffer buf
 922                 (insert sorthead)
 923                 (goto-char (point-min))
 924                 (when (re-search-forward "^Subject: \\(.*\\)$" nil t)
 925                   (setq subj (buffer-substring (match-beginning 1)
 926                                                (match-end 1))))
 927                 (goto-char (point-max))
 928                 (insert body))
 929               (insert "\n<#part type=message/rfc822"
 930                       " buffer=\"" (buffer-name buf) "\">\n")))
 931           (insert sorthead) (goto-char (point-max))
 932           (insert body) (goto-char (point-max))
 933           (insert (concat "\n" (make-string 30 ?-) "\n\n")))
 934         (goto-char beg)
 935         (when (re-search-forward "^Subject: \\(.*\\)$" nil t)
 936           (setq subj (buffer-substring (match-beginning 1) (match-end 1))))
 937         (when subj
 938           (save-excursion
 939             (set-buffer "*gnus-uu-pre*")
 940             (insert (format "   %s\n" subj)))))
 941       (when (or (eq in-state 'last)
 942                 (eq in-state 'first-and-last))
 943         (if (and message-forward-as-mime gnus-uu-digest-buffer)
 944             (with-current-buffer gnus-uu-digest-buffer
 945               (erase-buffer)
 946               (insert-buffer "*gnus-uu-pre*")
 947               (goto-char (point-max))
 948               (insert-buffer "*gnus-uu-body*"))
 949           (save-excursion
 950             (set-buffer "*gnus-uu-pre*")
 951             (insert (format "\n\n%s\n\n" (make-string 70 ?-)))
 952             (if gnus-uu-digest-buffer
 953                 (with-current-buffer gnus-uu-digest-buffer
 954                   (erase-buffer)
 955                   (insert-buffer "*gnus-uu-pre*"))
 956               (let ((coding-system-for-write mm-text-coding-system))
 957                 (gnus-write-buffer gnus-uu-saved-article-name))))
 958           (save-excursion
 959             (set-buffer "*gnus-uu-body*")
 960             (goto-char (point-max))
 961             (insert
 962              (concat (setq end-string (format "End of %s Digest" name))
 963                      "\n"))
 964             (insert (concat (make-string (length end-string) ?*) "\n"))
 965             (if gnus-uu-digest-buffer
 966                 (with-current-buffer gnus-uu-digest-buffer
 967                   (goto-char (point-max))
 968                   (insert-buffer "*gnus-uu-body*"))
 969               (let ((coding-system-for-write mm-text-coding-system)
 970                     (file-name-coding-system nnmail-pathname-coding-system))
 971                 (write-region
 972                  (point-min) (point-max) gnus-uu-saved-article-name t)))))
 973         (gnus-kill-buffer "*gnus-uu-pre*")
 974         (gnus-kill-buffer "*gnus-uu-body*")
 975         (push 'end state))
 976       (if (memq 'begin state)
 977           (cons gnus-uu-saved-article-name state)
 978         state)))))
 979
 980 ;; Binhex treatment - not very advanced.
 981
 982 (defvar gnus-uu-binhex-body-line
 983   "^[^:]...............................................................$")
 984 (defvar gnus-uu-binhex-begin-line
 985   "^:...............................................................$")
 986 (defvar gnus-uu-binhex-end-line
 987   ":$")
 988
 989 (defun gnus-uu-binhex-article (buffer in-state)
 990   (let (state start-char)
 991     (save-excursion
 992       (set-buffer buffer)
 993       (widen)
 994       (goto-char (point-min))
 995       (when (not (re-search-forward gnus-uu-binhex-begin-line nil t))
 996         (when (not (re-search-forward gnus-uu-binhex-body-line nil t))
 997           (setq state (list 'wrong-type))))
 998
 999       (if (memq 'wrong-type state)
1000           ()
1001         (beginning-of-line)
1002         (setq start-char (point))
1003         (if (looking-at gnus-uu-binhex-begin-line)
1004             (progn
1005               (setq state (list 'begin))
1006               (write-region 1 1 gnus-uu-binhex-article-name))
1007           (setq state (list 'middle)))
1008         (goto-char (point-max))
1009         (re-search-backward (concat gnus-uu-binhex-body-line "\\|"
1010                                     gnus-uu-binhex-end-line)
1011                             nil t)
1012         (when (looking-at gnus-uu-binhex-end-line)
1013           (setq state (if (memq 'begin state)
1014                           (cons 'end state)
1015                         (list 'end))))
1016         (beginning-of-line)
1017         (forward-line 1)
1018         (when (file-exists-p gnus-uu-binhex-article-name)
1019           (mm-append-to-file start-char (point) gnus-uu-binhex-article-name))))
1020     (if (memq 'begin state)
1021         (cons gnus-uu-binhex-article-name state)
1022       state)))
1023
1024 ;; PostScript
1025
1026 (defun gnus-uu-decode-postscript-article (process-buffer in-state)
1027   (let ((state (list 'ok))
1028         start-char end-char file-name)
1029     (save-excursion
1030       (set-buffer process-buffer)
1031       (goto-char (point-min))
1032       (if (not (re-search-forward gnus-uu-postscript-begin-string nil t))
1033           (setq state (list 'wrong-type))
1034         (beginning-of-line)
1035         (setq start-char (point))
1036         (if (not (re-search-forward gnus-uu-postscript-end-string nil t))
1037             (setq state (list 'wrong-type))
1038           (setq end-char (point))
1039           (set-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name))
1040           (insert-buffer-substring process-buffer start-char end-char)
1041           (setq file-name (concat gnus-uu-work-dir
1042                                   (cdr gnus-article-current) ".ps"))
1043           (write-region (point-min) (point-max) file-name)
1044           (setq state (list file-name 'begin 'end)))))
1045     state))
1046
1047
1048 ;; Find actions.
1049
1050 (defun gnus-uu-get-actions (files)
1051   (let ((ofiles files)
1052         action name)
1053     (while files
1054       (setq name (cdr (assq 'name (car files))))
1055       (and
1056        (setq action (gnus-uu-get-action name))
1057        (setcar files (nconc (list (if (string= action "gnus-uu-archive")
1058                                       (cons 'action "file")
1059                                     (cons 'action action))
1060                                   (cons 'execute (gnus-uu-command
1061                                                   action name)))
1062                             (car files))))
1063       (setq files (cdr files)))
1064     ofiles))
1065
1066 (defun gnus-uu-get-action (file-name)
1067   (let (action)
1068     (setq action
1069           (gnus-uu-choose-action
1070            file-name
1071            (append
1072             gnus-uu-user-view-rules
1073             (if gnus-uu-ignore-default-view-rules
1074                 nil
1075               gnus-uu-default-view-rules)
1076             gnus-uu-user-view-rules-end)))
1077     (when (and (not (string= (or action "") "gnus-uu-archive"))
1078                gnus-uu-view-with-metamail)
1079       (when (setq action
1080                   (gnus-uu-choose-action file-name gnus-uu-ext-to-mime-list))
1081         (setq action (format "metamail -d -b -c \"%s\"" action))))
1082     action))
1083
1084
1085 ;; Functions for treating subjects and collecting series.
1086
1087 (defun gnus-uu-reginize-string (string)
1088   ;; Takes a string and puts a \ in front of every special character;
1089   ;; replaces the last thing that looks like "2/3" with "[0-9]+/3"
1090   ;; or, if it can't find something like that, tries "2 of 3", then
1091   ;; finally just replaces the next to last number with "[0-9]+".
1092   (save-excursion
1093     (set-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name))
1094     (buffer-disable-undo)
1095     (erase-buffer)
1096     (insert (regexp-quote string))
1097
1098     (setq case-fold-search nil)
1099
1100     (end-of-line)
1101     (if (re-search-backward "\\([^0-9]\\)[0-9]+/\\([0-9]+\\)" nil t)
1102         (replace-match "\\1[0-9]+/\\2")
1103
1104       (end-of-line)
1105       (if (re-search-backward "\\([^0-9]\\)[0-9]+[ \t]*of[ \t]*\\([0-9]+\\)"
1106                               nil t)
1107           (replace-match "\\1[0-9]+ of \\2")
1108
1109         (end-of-line)
1110         (if (re-search-backward "\\([^0-9]\\)[0-9]+\\([^0-9]+\\)[0-9]+"
1111                                 nil t)
1112             (replace-match "\\1[0-9]+\\2[0-9]+" t nil nil nil))))
1113
1114     (goto-char 1)
1115     (while (re-search-forward "[ \t]+" nil t)
1116       (replace-match "[ \t]+" t t))
1117
1118     (buffer-substring 1 (point-max))))
1119
1120 (defun gnus-uu-get-list-of-articles (n)
1121   ;; If N is non-nil, the article numbers of the N next articles
1122   ;; will be returned.
1123   ;; If any articles have been marked as processable, they will be
1124   ;; returned.
1125   ;; Failing that, articles that have subjects that are part of the
1126   ;; same "series" as the current will be returned.
1127   (let (articles)
1128     (cond
1129      (n
1130       (setq n (prefix-numeric-value n))
1131       (let ((backward (< n 0))
1132             (n (abs n)))
1133         (save-excursion
1134           (while (and (> n 0)
1135                       (push (gnus-summary-article-number)
1136                             articles)
1137                       (gnus-summary-search-forward nil nil backward))
1138             (setq n (1- n))))
1139         (nreverse articles)))
1140      (gnus-newsgroup-processable
1141       (reverse gnus-newsgroup-processable))
1142      (t
1143       (gnus-uu-find-articles-matching)))))
1144
1145 (defun gnus-uu-string< (l1 l2)
1146   (string< (car l1) (car l2)))
1147
1148 (defun gnus-uu-find-articles-matching
1149   (&optional subject only-unread do-not-translate)
1150   ;; Finds all articles that matches the regexp SUBJECT.  If it is
1151   ;; nil, the current article name will be used.  If ONLY-UNREAD is
1152   ;; non-nil, only unread articles are chosen.  If DO-NOT-TRANSLATE is
1153   ;; non-nil, article names are not equalized before sorting.
1154   (let ((subject (or subject
1155                      (gnus-uu-reginize-string (gnus-summary-article-subject))))
1156         list-of-subjects)
1157     (save-excursion
1158       (when subject
1159         ;; Collect all subjects matching subject.
1160         (let ((case-fold-search t)
1161               (data gnus-newsgroup-data)
1162               subj mark d)
1163           (while data
1164             (setq d (pop data))
1165             (and (not (gnus-data-pseudo-p d))
1166                  (or (not only-unread)
1167                      (= (setq mark (gnus-data-mark d))
1168                         gnus-unread-mark)
1169                      (= mark gnus-ticked-mark)
1170                      (= mark gnus-dormant-mark))
1171                  (setq subj (mail-header-subject (gnus-data-header d)))
1172                  (string-match subject subj)
1173                  (push (cons subj (gnus-data-number d))
1174                        list-of-subjects))))
1175
1176         ;; Expand numbers, sort, and return the list of article
1177         ;; numbers.
1178         (mapcar (lambda (sub) (cdr sub))
1179                 (sort (gnus-uu-expand-numbers
1180                        list-of-subjects
1181                        (not do-not-translate))
1182                       'gnus-uu-string<))))))
1183
1184 (defun gnus-uu-expand-numbers (string-list &optional translate)
1185   ;; Takes a list of strings and "expands" all numbers in all the
1186   ;; strings.  That is, this function makes all numbers equal length by
1187   ;; prepending lots of zeroes before each number.  This is to ease later
1188   ;; sorting to find out what sequence the articles are supposed to be
1189   ;; decoded in.  Returns the list of expanded strings.
1190   (let ((out-list string-list)
1191         string)
1192     (save-excursion
1193       (set-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name))
1194       (buffer-disable-undo)
1195       (while string-list
1196         (erase-buffer)
1197         (insert (caar string-list))
1198         ;; Translate multiple spaces to one space.
1199         (goto-char (point-min))
1200         (while (re-search-forward "[ \t]+" nil t)
1201           (replace-match " "))
1202         ;; Translate all characters to "a".
1203         (goto-char (point-min))
1204         (when translate
1205           (while (re-search-forward "[A-Za-z]" nil t)
1206             (replace-match "a" t t)))
1207         ;; Expand numbers.
1208         (goto-char (point-min))
1209         (while (re-search-forward "[0-9]+" nil t)
1210           (replace-match
1211            (format "%06d"
1212                    (string-to-int (buffer-substring
1213                                    (match-beginning 0) (match-end 0))))))
1214         (setq string (buffer-substring 1 (point-max)))
1215         (setcar (car string-list) string)
1216         (setq string-list (cdr string-list))))
1217     out-list))
1218
1219
1220 ;; `gnus-uu-grab-articles' is the general multi-article treatment
1221 ;; function.  It takes a list of articles to be grabbed and a function
1222 ;; to apply to each article.
1223 ;;
1224 ;; The function to be called should take two parameters.  The first
1225 ;; parameter is the article buffer.  The function should leave the
1226 ;; result, if any, in this buffer.  Most treatment functions will just
1227 ;; generate files...
1228 ;;
1229 ;; The second parameter is the state of the list of articles, and can
1230 ;; have four values: `first', `middle', `last' and `first-and-last'.
1231 ;;
1232 ;; The function should return a list.  The list may contain the
1233 ;; following symbols:
1234 ;; `error' if an error occurred
1235 ;; `begin' if the beginning of an encoded file has been received
1236 ;;   If the list returned contains a `begin', the first element of
1237 ;;   the list *must* be a string with the file name of the decoded
1238 ;;   file.
1239 ;; `end' if the end of an encoded file has been received
1240 ;; `middle' if the article was a body part of an encoded file
1241 ;; `wrong-type' if the article was not a part of an encoded file
1242 ;; `ok', which can be used everything is ok
1243
1244 (defvar gnus-uu-has-been-grabbed nil)
1245
1246 (defun gnus-uu-unmark-list-of-grabbed (&optional dont-unmark-last-article)
1247   (let (art)
1248     (if (not (and gnus-uu-has-been-grabbed
1249                   gnus-uu-unmark-articles-not-decoded))
1250         ()
1251       (when dont-unmark-last-article
1252         (setq art (car gnus-uu-has-been-grabbed))
1253         (setq gnus-uu-has-been-grabbed (cdr gnus-uu-has-been-grabbed)))
1254       (while gnus-uu-has-been-grabbed
1255         (gnus-summary-tick-article (car gnus-uu-has-been-grabbed) t)
1256         (setq gnus-uu-has-been-grabbed (cdr gnus-uu-has-been-grabbed)))
1257       (when dont-unmark-last-article
1258         (setq gnus-uu-has-been-grabbed (list art))))))
1259
1260 ;; This function takes a list of articles and a function to apply to
1261 ;; each article grabbed.
1262 ;;
1263 ;; This function returns a list of files decoded if the grabbing and
1264 ;; the process-function has been successful and nil otherwise.
1265 (defun gnus-uu-grab-articles (articles process-function
1266                                        &optional sloppy limit no-errors)
1267   (let ((state 'first)
1268         (gnus-asynchronous nil)
1269         (gnus-inhibit-treatment t)
1270         has-been-begin article result-file result-files process-state
1271         gnus-summary-display-article-function
1272         gnus-article-prepare-hook gnus-display-mime-function
1273         article-series files)
1274
1275     (while (and articles
1276                 (not (memq 'error process-state))
1277                 (or sloppy
1278                     (not (memq 'end process-state))))
1279
1280       (setq article (pop articles))
1281       (when (vectorp (gnus-summary-article-header article))
1282         (push article article-series)
1283
1284         (unless articles
1285           (if (eq state 'first)
1286               (setq state 'first-and-last)
1287             (setq state 'last)))
1288
1289         (let ((part (gnus-uu-part-number article)))
1290           (gnus-message 6 "Getting article %d%s..."
1291                         article (if (string= part "") "" (concat ", " part))))
1292         (gnus-summary-display-article article)
1293
1294         ;; Push the article to the processing function.
1295         (save-excursion
1296           (set-buffer gnus-original-article-buffer)
1297           (let ((buffer-read-only nil))
1298             (save-excursion
1299               (set-buffer gnus-summary-buffer)
1300               (setq process-state
1301                     (funcall process-function
1302                              gnus-original-article-buffer state)))))
1303
1304         (gnus-summary-remove-process-mark article)
1305
1306         ;; If this is the beginning of a decoded file, we push it
1307         ;; on to a list.
1308         (when (or (memq 'begin process-state)
1309                   (and (or (eq state 'first)
1310                            (eq state 'first-and-last))
1311                        (memq 'ok process-state)))
1312           (when has-been-begin
1313             ;; If there is a `result-file' here, that means that the
1314             ;; file was unsuccessfully decoded, so we delete it.
1315             (when (and result-file
1316                        (file-exists-p result-file)
1317                        (not gnus-uu-be-dangerous)
1318                        (or (eq gnus-uu-be-dangerous t)
1319                            (gnus-y-or-n-p
1320                             (format "Delete unsuccessfully decoded file %s"
1321                                     result-file))))
1322               (delete-file result-file)))
1323           (when (memq 'begin process-state)
1324             (setq result-file (car process-state)))
1325           (setq has-been-begin t))
1326
1327         ;; Check whether we have decoded one complete file.
1328         (when (memq 'end process-state)
1329           (setq article-series nil)
1330           (setq has-been-begin nil)
1331           (if (stringp result-file)
1332               (setq files (list result-file))
1333             (setq files result-file))
1334           (setq result-file (car files))
1335           (while files
1336             (push (list (cons 'name (pop files))
1337                         (cons 'article article))
1338                   result-files))
1339           ;; Allow user-defined functions to be run on this file.
1340           (when gnus-uu-grabbed-file-functions
1341             (let ((funcs gnus-uu-grabbed-file-functions))
1342               (unless (listp funcs)
1343                 (setq funcs (list funcs)))
1344               (while funcs
1345                 (funcall (pop funcs) result-file))))
1346           (setq result-file nil)
1347           ;; Check whether we have decoded enough articles.
1348           (and limit (= (length result-files) limit)
1349                (setq articles nil)))
1350
1351         ;; If this is the last article to be decoded, and
1352         ;; we still haven't reached the end, then we delete
1353         ;; the partially decoded file.
1354         (and (or (eq state 'last) (eq state 'first-and-last))
1355              (not (memq 'end process-state))
1356              result-file
1357              (file-exists-p result-file)
1358              (not gnus-uu-be-dangerous)
1359              (or (eq gnus-uu-be-dangerous t)
1360                  (gnus-y-or-n-p
1361                   (format "Delete incomplete file %s? " result-file)))
1362              (delete-file result-file))
1363
1364         ;; If this was a file of the wrong sort, then
1365         (when (and (or (memq 'wrong-type process-state)
1366                        (memq 'error process-state))
1367                    gnus-uu-unmark-articles-not-decoded)
1368           (gnus-summary-tick-article article t))
1369
1370         ;; Set the new series state.
1371         (if (and (not has-been-begin)
1372                  (not sloppy)
1373                  (or (memq 'end process-state)
1374                      (memq 'middle process-state)))
1375             (progn
1376               (setq process-state (list 'error))
1377               (gnus-message 2 "No begin part at the beginning")
1378               (sleep-for 2))
1379           (setq state 'middle)))
1380
1381       ;; When there are no result-files, then something must be wrong.
1382       (if result-files
1383           (message "")
1384         (cond
1385          ((not has-been-begin)
1386           (gnus-message 2 "Wrong type file"))
1387          ((memq 'error process-state)
1388           (gnus-message 2 "An error occurred during decoding"))
1389          ((not (or (memq 'ok process-state)
1390                    (memq 'end process-state)))
1391           (gnus-message 2 "End of articles reached before end of file")))
1392         ;; Make unsuccessfully decoded articles unread.
1393         (when gnus-uu-unmark-articles-not-decoded
1394           (while article-series
1395             (gnus-summary-tick-article (pop article-series) t)))))
1396
1397     ;; The original article buffer is hosed, shoot it down.
1398     (gnus-kill-buffer gnus-original-article-buffer)
1399
1400     result-files))
1401
1402 (defun gnus-uu-grab-view (file)
1403   "View FILE using the gnus-uu methods."
1404   (let ((action (gnus-uu-get-action file)))
1405     (gnus-execute-command
1406      (if (string-match "%" action)
1407          (format action file)
1408        (concat action " " file))
1409      (eq gnus-view-pseudos 'not-confirm))))
1410
1411 (defun gnus-uu-grab-move (file)
1412   "Move FILE to somewhere."
1413   (when gnus-uu-default-dir
1414     (let ((to-file (concat (file-name-as-directory gnus-uu-default-dir)
1415                            (file-name-nondirectory file))))
1416       (rename-file file to-file)
1417       (unless (file-exists-p file)
1418         (make-symbolic-link to-file file)))))
1419
1420 (defun gnus-uu-part-number (article)
1421   (let* ((header (gnus-summary-article-header article))
1422          (subject (and header (mail-header-subject header)))
1423          (part nil))
1424     (if subject
1425         (while (string-match "[0-9]+/[0-9]+\\|[0-9]+[ \t]+of[ \t]+[0-9]+"
1426                              subject)
1427           (setq part (match-string 0 subject))
1428           (setq subject (substring subject (match-end 0)))))
1429     (or part
1430         (while (string-match "\\([0-9]+\\)[^0-9]+\\([0-9]+\\)" subject)
1431           (setq part (match-string 0 subject))
1432           (setq subject (substring subject (match-end 0)))))
1433     (or part "")))
1434
1435 (defun gnus-uu-uudecode-sentinel (process event)
1436   (delete-process (get-process process)))
1437
1438 (defun gnus-uu-uustrip-article (process-buffer in-state)
1439   ;; Uudecodes a file asynchronously.
1440   (save-excursion
1441     (set-buffer process-buffer)
1442     (let ((state (list 'wrong-type))
1443           process-connection-type case-fold-search buffer-read-only
1444           files start-char)
1445       (goto-char (point-min))
1446
1447       ;; Deal with ^M at the end of the lines.
1448       (when gnus-uu-kill-carriage-return
1449         (save-excursion
1450           (while (search-forward "\r" nil t)
1451             (delete-backward-char 1))))
1452
1453       (while (or (re-search-forward gnus-uu-begin-string nil t)
1454                  (re-search-forward gnus-uu-body-line nil t))
1455         (setq state (list 'ok))
1456         ;; Ok, we are at the first uucoded line.
1457         (beginning-of-line)
1458         (setq start-char (point))
1459
1460         (if (not (looking-at gnus-uu-begin-string))
1461             (setq state (list 'middle))
1462           ;; This is the beginning of a uuencoded article.
1463           ;; We replace certain characters that could make things messy.
1464           (setq gnus-uu-file-name
1465                 (let ((nnheader-file-name-translation-alist
1466                        '((?/ . ?,) (?  . ?_) (?* . ?_) (?$ . ?_))))
1467                   (nnheader-translate-file-chars (match-string 1))))
1468           (replace-match (concat "begin 644 " gnus-uu-file-name) t t)
1469
1470           ;; Remove any non gnus-uu-body-line right after start.
1471           (forward-line 1)
1472           (while (and (not (eobp))
1473                       (not (looking-at gnus-uu-body-line)))
1474             (gnus-delete-line))
1475
1476           ;; If a process is running, we kill it.
1477           (when (and gnus-uu-uudecode-process
1478                      (memq (process-status gnus-uu-uudecode-process)
1479                            '(run stop)))
1480             (delete-process gnus-uu-uudecode-process)
1481             (gnus-uu-unmark-list-of-grabbed t))
1482
1483           ;; Start a new uudecoding process.
1484           (let ((cdir default-directory))
1485             (unwind-protect
1486                 (progn
1487                   (cd gnus-uu-work-dir)
1488                   (setq gnus-uu-uudecode-process
1489                         (start-process
1490                          "*uudecode*"
1491                          (gnus-get-buffer-create gnus-uu-output-buffer-name)
1492                          shell-file-name shell-command-switch
1493                          (format "cd %s %s uudecode" gnus-uu-work-dir
1494                                  gnus-shell-command-separator))))
1495               (cd cdir)))
1496           (set-process-sentinel
1497            gnus-uu-uudecode-process 'gnus-uu-uudecode-sentinel)
1498           (setq state (list 'begin))
1499           (push (concat gnus-uu-work-dir gnus-uu-file-name) files))
1500
1501         ;; We look for the end of the thing to be decoded.
1502         (if (re-search-forward gnus-uu-end-string nil t)
1503             (push 'end state)
1504           (goto-char (point-max))
1505           (re-search-backward gnus-uu-body-line nil t))
1506
1507         (forward-line 1)
1508
1509         (when gnus-uu-uudecode-process
1510           (when (memq (process-status gnus-uu-uudecode-process) '(run stop))
1511             ;; Try to correct mishandled uucode.
1512             (when gnus-uu-correct-stripped-uucode
1513               (gnus-uu-check-correct-stripped-uucode start-char (point)))
1514             (gnus-run-hooks 'gnus-uu-pre-uudecode-hook)
1515
1516             ;; Send the text to the process.
1517             (condition-case nil
1518                 (process-send-region
1519                  gnus-uu-uudecode-process start-char (point))
1520               (error
1521                (progn
1522                  (delete-process gnus-uu-uudecode-process)
1523                  (gnus-message 2 "gnus-uu: Couldn't uudecode")
1524                  (setq state (list 'wrong-type)))))
1525
1526             (if (memq 'end state)
1527                 (progn
1528                   ;; Send an EOF, just in case.
1529                   (ignore-errors
1530                     (process-send-eof gnus-uu-uudecode-process))
1531                   (while (memq (process-status gnus-uu-uudecode-process)
1532                                '(open run))
1533                     (accept-process-output gnus-uu-uudecode-process 1)))
1534               (when (or (not gnus-uu-uudecode-process)
1535                         (not (memq (process-status gnus-uu-uudecode-process)
1536                                    '(run stop))))
1537                 (setq state (list 'wrong-type)))))))
1538
1539       (if (memq 'begin state)
1540           (cons (if (= (length files) 1) (car files) files) state)
1541         state))))
1542
1543 (defvar gnus-uu-unshar-warning
1544   "*** WARNING ***
1545
1546 Shell archives are an archaic method of bundling files for distribution
1547 across computer networks.  During the unpacking process, arbitrary commands
1548 are executed on your system, and all kinds of nasty things can happen.
1549 Please examine the archive very carefully before you instruct Emacs to
1550 unpack it.  You can browse the archive buffer using \\[scroll-other-window].
1551
1552 If you are unsure what to do, please answer \"no\"."
1553   "Text of warning message displayed by `gnus-uu-unshar-article'.
1554 Make sure that this text consists only of few text lines.  Otherwise,
1555 Gnus might fail to display all of it.")
1556
1557
1558 ;; This function is used by `gnus-uu-grab-articles' to treat
1559 ;; a shared article.
1560 (defun gnus-uu-unshar-article (process-buffer in-state)
1561   (let ((state (list 'ok))
1562         start-char)
1563     (save-excursion
1564       (set-buffer process-buffer)
1565       (goto-char (point-min))
1566       (if (not (re-search-forward gnus-uu-shar-begin-string nil t))
1567           (setq state (list 'wrong-type))
1568         (save-window-excursion
1569           (save-excursion
1570             (switch-to-buffer (current-buffer))
1571             (delete-other-windows)
1572             (let ((buffer (get-buffer-create (generate-new-buffer-name
1573                                               "*Warning*"))))
1574               (unless
1575                   (unwind-protect
1576                       (with-current-buffer buffer
1577                         (insert (substitute-command-keys
1578                                  gnus-uu-unshar-warning))
1579                         (goto-char (point-min))
1580                         (display-buffer buffer)
1581                         (yes-or-no-p "This is a shell archive, unshar it? "))
1582                     (kill-buffer buffer))
1583                 (setq state (list 'error))))))
1584         (unless (memq 'error state)
1585           (beginning-of-line)
1586           (setq start-char (point))
1587           (call-process-region
1588            start-char (point-max) shell-file-name nil
1589            (gnus-get-buffer-create gnus-uu-output-buffer-name) nil
1590            shell-command-switch
1591            (concat "cd " gnus-uu-work-dir " "
1592                    gnus-shell-command-separator  " sh")))))
1593     state))
1594
1595 ;; Returns the name of what the shar file is going to unpack.
1596 (defun gnus-uu-find-name-in-shar ()
1597   (let ((oldpoint (point))
1598         res)
1599     (goto-char (point-min))
1600     (when (re-search-forward gnus-uu-shar-name-marker nil t)
1601       (setq res (buffer-substring (match-beginning 1) (match-end 1))))
1602     (goto-char oldpoint)
1603     res))
1604
1605 ;; `gnus-uu-choose-action' chooses what action to perform given the name
1606 ;; and `gnus-uu-file-action-list'.  Returns either nil if no action is
1607 ;; found, or the name of the command to run if such a rule is found.
1608 (defun gnus-uu-choose-action (file-name file-action-list &optional no-ignore)
1609   (let ((action-list (copy-sequence file-action-list))
1610         (case-fold-search t)
1611         rule action)
1612     (and
1613      (unless no-ignore
1614        (and (not
1615              (and gnus-uu-ignore-files-by-name
1616                   (string-match gnus-uu-ignore-files-by-name file-name)))
1617             (not
1618              (and gnus-uu-ignore-files-by-type
1619                   (string-match gnus-uu-ignore-files-by-type
1620                                 (or (gnus-uu-choose-action
1621                                      file-name gnus-uu-ext-to-mime-list t)
1622                                     ""))))))
1623      (while (not (or (eq action-list ()) action))
1624        (setq rule (car action-list))
1625        (setq action-list (cdr action-list))
1626        (when (string-match (car rule) file-name)
1627          (setq action (cadr rule)))))
1628     action))
1629
1630 (defun gnus-uu-treat-archive (file-path)
1631   ;; Unpacks an archive.  Returns t if unpacking is successful.
1632   (let ((did-unpack t)
1633         action command dir)
1634     (setq action (gnus-uu-choose-action
1635                   file-path (append gnus-uu-user-archive-rules
1636                                     (if gnus-uu-ignore-default-archive-rules
1637                                         nil
1638                                       gnus-uu-default-archive-rules))))
1639
1640     (when (not action)
1641       (error "No unpackers for the file %s" file-path))
1642
1643     (string-match "/[^/]*$" file-path)
1644     (setq dir (substring file-path 0 (match-beginning 0)))
1645
1646     (when (member action gnus-uu-destructive-archivers)
1647       (copy-file file-path (concat file-path "~") t))
1648
1649     (setq command (format "cd %s ; %s" dir (gnus-uu-command action file-path)))
1650
1651     (save-excursion
1652       (set-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name))
1653       (erase-buffer))
1654
1655     (gnus-message 5 "Unpacking: %s..." (gnus-uu-command action file-path))
1656
1657     (if (= 0 (call-process shell-file-name nil
1658                            (gnus-get-buffer-create gnus-uu-output-buffer-name)
1659                            nil shell-command-switch command))
1660         (message "")
1661       (gnus-message 2 "Error during unpacking of archive")
1662       (setq did-unpack nil))
1663
1664     (when (member action gnus-uu-destructive-archivers)
1665       (rename-file (concat file-path "~") file-path t))
1666
1667     did-unpack))
1668
1669 (defun gnus-uu-dir-files (dir)
1670   (let ((dirs (directory-files dir t "[^/][^\\.][^\\.]?$"))
1671         files file)
1672     (while dirs
1673       (if (file-directory-p (setq file (car dirs)))
1674           (setq files (append files (gnus-uu-dir-files file)))
1675         (push file files))
1676       (setq dirs (cdr dirs)))
1677     files))
1678
1679 (defun gnus-uu-unpack-files (files &optional ignore)
1680   ;; Go through FILES and look for files to unpack.
1681   (let* ((totfiles (gnus-uu-ls-r gnus-uu-work-dir))
1682          (ofiles files)
1683          file did-unpack)
1684     (while files
1685       (setq file (cdr (assq 'name (car files))))
1686       (when (and (not (member file ignore))
1687                  (equal (gnus-uu-get-action (file-name-nondirectory file))
1688                         "gnus-uu-archive"))
1689         (push file did-unpack)
1690         (unless (gnus-uu-treat-archive file)
1691           (gnus-message 2 "Error during unpacking of %s" file))
1692         (let* ((newfiles (gnus-uu-ls-r gnus-uu-work-dir))
1693                (nfiles newfiles))
1694           (while nfiles
1695             (unless (member (car nfiles) totfiles)
1696               (push (list (cons 'name (car nfiles))
1697                           (cons 'original file))
1698                     ofiles))
1699             (setq nfiles (cdr nfiles)))
1700           (setq totfiles newfiles)))
1701       (setq files (cdr files)))
1702     (if did-unpack
1703         (gnus-uu-unpack-files ofiles (append did-unpack ignore))
1704       ofiles)))
1705
1706 (defun gnus-uu-ls-r (dir)
1707   (let* ((files (gnus-uu-directory-files dir t))
1708          (ofiles files))
1709     (while files
1710       (when (file-directory-p (car files))
1711         (setq ofiles (delete (car files) ofiles))
1712         (setq ofiles (append ofiles (gnus-uu-ls-r (car files)))))
1713       (setq files (cdr files)))
1714     ofiles))
1715
1716 ;; Various stuff
1717
1718 (defun gnus-uu-directory-files (dir &optional full)
1719   (let (files out file)
1720     (setq files (directory-files dir full))
1721     (while files
1722       (setq file (car files))
1723       (setq files (cdr files))
1724       (unless (member (file-name-nondirectory file) '("." ".."))
1725         (push file out)))
1726     (setq out (nreverse out))
1727     out))
1728
1729 (defun gnus-uu-check-correct-stripped-uucode (start end)
1730   (save-excursion
1731     (let (found beg length)
1732       (if (not gnus-uu-correct-stripped-uucode)
1733           ()
1734         (goto-char start)
1735
1736         (if (re-search-forward " \\|`" end t)
1737             (progn
1738               (goto-char start)
1739               (while (not (eobp))
1740                 (progn
1741                   (when (looking-at "\n")
1742                     (replace-match ""))
1743                   (forward-line 1))))
1744
1745           (while (not (eobp))
1746             (if (looking-at (concat gnus-uu-begin-string "\\|"
1747                                     gnus-uu-end-string))
1748                 ()
1749               (when (not found)
1750                 (beginning-of-line)
1751                 (setq beg (point))
1752                 (end-of-line)
1753                 (setq length (- (point) beg)))
1754               (setq found t)
1755               (beginning-of-line)
1756               (setq beg (point))
1757               (end-of-line)
1758               (when (not (= length (- (point) beg)))
1759                 (insert (make-string (- length (- (point) beg)) ? ))))
1760             (forward-line 1)))))))
1761
1762 (defvar gnus-uu-tmp-alist nil)
1763
1764 (defun gnus-uu-initialize (&optional scan)
1765   (let (entry)
1766     (if (and (not scan)
1767              (when (setq entry (assoc gnus-newsgroup-name gnus-uu-tmp-alist))
1768                (if (file-exists-p (cdr entry))
1769                    (setq gnus-uu-work-dir (cdr entry))
1770                  (setq gnus-uu-tmp-alist (delq entry gnus-uu-tmp-alist))
1771                  nil)))
1772         t
1773       (setq gnus-uu-tmp-dir (file-name-as-directory
1774                              (expand-file-name gnus-uu-tmp-dir)))
1775       (if (not (file-directory-p gnus-uu-tmp-dir))
1776           (error "Temp directory %s doesn't exist" gnus-uu-tmp-dir)
1777         (when (not (file-writable-p gnus-uu-tmp-dir))
1778           (error "Temp directory %s can't be written to"
1779                  gnus-uu-tmp-dir)))
1780
1781       (setq gnus-uu-work-dir
1782             (make-temp-name (concat gnus-uu-tmp-dir "gnus")))
1783       (gnus-make-directory gnus-uu-work-dir)
1784       (set-file-modes gnus-uu-work-dir 448)
1785       (setq gnus-uu-work-dir (file-name-as-directory gnus-uu-work-dir))
1786       (push (cons gnus-newsgroup-name gnus-uu-work-dir)
1787             gnus-uu-tmp-alist))))
1788
1789
1790 ;; Kills the temporary uu buffers, kills any processes, etc.
1791 (defun gnus-uu-clean-up ()
1792   (let (buf)
1793     (and gnus-uu-uudecode-process
1794          (memq (process-status (or gnus-uu-uudecode-process "nevair"))
1795                '(stop run))
1796          (delete-process gnus-uu-uudecode-process))
1797     (when (setq buf (get-buffer gnus-uu-output-buffer-name))
1798       (kill-buffer buf))))
1799
1800 ;; Inputs an action and a filename and returns a full command, making sure
1801 ;; that the filename will be treated as a single argument when the shell
1802 ;; executes the command.
1803 (defun gnus-uu-command (action file)
1804   (let ((quoted-file (mm-quote-arg file)))
1805     (if (string-match "%s" action)
1806         (format action quoted-file)
1807       (concat action " " quoted-file))))
1808
1809 (defun gnus-uu-delete-work-dir (&optional dir)
1810   "Delete recursively all files and directories under `gnus-uu-work-dir'."
1811   (if dir
1812       (gnus-message 7 "Deleting directory %s..." dir)
1813     (setq dir gnus-uu-work-dir))
1814   (when (and dir
1815              (file-exists-p dir))
1816     (let ((files (directory-files dir t nil t))
1817           file)
1818       (while (setq file (pop files))
1819         (unless (member (file-name-nondirectory file) '("." ".."))
1820           (if (file-directory-p file)
1821               (gnus-uu-delete-work-dir file)
1822             (gnus-message 9 "Deleting file %s..." file)
1823             (delete-file file))))
1824       (delete-directory dir)))
1825   (gnus-message 7 ""))
1826
1827 ;; Initializing
1828
1829 (add-hook 'gnus-exit-group-hook 'gnus-uu-clean-up)
1830 (add-hook 'gnus-exit-group-hook 'gnus-uu-delete-work-dir)
1831
1832 \f
1833
1834 ;;;
1835 ;;; uuencoded posting
1836 ;;;
1837
1838 ;; Any function that is to be used as and encoding method will take two
1839 ;; parameters: PATH-NAME and FILE-NAME.  (E.g. "/home/gaga/spiral.jpg"
1840 ;; and "spiral.jpg", respectively.) The function should return nil if
1841 ;; the encoding wasn't successful.
1842 (defcustom gnus-uu-post-encode-method 'gnus-uu-post-encode-uuencode
1843   "Function used for encoding binary files.
1844 There are three functions supplied with gnus-uu for encoding files:
1845 `gnus-uu-post-encode-uuencode', which does straight uuencoding;
1846 `gnus-uu-post-encode-mime', which encodes with base64 and adds MIME
1847 headers; and `gnus-uu-post-encode-mime-uuencode', which encodes with
1848 uuencode and adds MIME headers."
1849   :group 'gnus-extract-post
1850   :type '(radio (function-item gnus-uu-post-encode-uuencode)
1851                 (function-item gnus-uu-post-encode-mime)
1852                 (function-item gnus-uu-post-encode-mime-uuencode)
1853                 (function :tag "Other")))
1854
1855 (defcustom gnus-uu-post-include-before-composing nil
1856   "Non-nil means that gnus-uu will ask for a file to encode before you compose the article.
1857 If this variable is t, you can either include an encoded file with
1858 \\[gnus-uu-post-insert-binary-in-article] or have one included for you when you post the article."
1859   :group 'gnus-extract-post
1860   :type 'boolean)
1861
1862 (defcustom gnus-uu-post-length 990
1863   "Maximum length of an article.
1864 The encoded file will be split into how many articles it takes to
1865 post the entire file."
1866   :group 'gnus-extract-post
1867   :type 'integer)
1868
1869 (defcustom gnus-uu-post-threaded nil
1870   "Non-nil means that gnus-uu will post the encoded file in a thread.
1871 This may not be smart, as no other decoder I have seen are able to
1872 follow threads when collecting uuencoded articles.  (Well, I have seen
1873 one package that does that - gnus-uu, but somehow, I don't think that
1874 counts...)  The default is nil."
1875   :group 'gnus-extract-post
1876   :type 'boolean)
1877
1878 (defcustom gnus-uu-post-separate-description t
1879   "Non-nil means that the description will be posted in a separate article.
1880 The first article will typically be numbered (0/x).  If this variable
1881 is nil, the description the user enters will be included at the
1882 beginning of the first article, which will be numbered (1/x).  Default
1883 is t."
1884   :group 'gnus-extract-post
1885   :type 'boolean)
1886
1887 (defvar gnus-uu-post-binary-separator "--binary follows this line--")
1888 (defvar gnus-uu-post-message-id nil)
1889 (defvar gnus-uu-post-inserted-file-name nil)
1890 (defvar gnus-uu-winconf-post-news nil)
1891
1892 (defun gnus-uu-post-news ()
1893   "Compose an article and post an encoded file."
1894   (interactive)
1895   (setq gnus-uu-post-inserted-file-name nil)
1896   (setq gnus-uu-winconf-post-news (current-window-configuration))
1897
1898   (gnus-summary-post-news)
1899
1900   (let ((map (make-sparse-keymap)))
1901     (set-keymap-parent map (current-local-map))
1902     (use-local-map map))
1903   (local-set-key "\C-c\C-c" 'gnus-summary-edit-article-done)
1904   (local-set-key "\C-c\C-c" 'gnus-uu-post-news-inews)
1905   (local-set-key "\C-c\C-s" 'gnus-uu-post-news-inews)
1906   (local-set-key "\C-c\C-i" 'gnus-uu-post-insert-binary-in-article)
1907
1908   (when gnus-uu-post-include-before-composing
1909     (save-excursion (setq gnus-uu-post-inserted-file-name
1910                           (gnus-uu-post-insert-binary)))))
1911
1912 (defun gnus-uu-post-insert-binary-in-article ()
1913   "Inserts an encoded file in the buffer.
1914 The user will be asked for a file name."
1915   (interactive)
1916   (save-excursion
1917     (setq gnus-uu-post-inserted-file-name (gnus-uu-post-insert-binary))))
1918
1919 ;; Encodes with uuencode and substitutes all spaces with backticks.
1920 (defun gnus-uu-post-encode-uuencode (path file-name)
1921   (when (gnus-uu-post-encode-file "uuencode" path file-name)
1922     (goto-char (point-min))
1923     (forward-line 1)
1924     (while (re-search-forward " " nil t)
1925       (replace-match "`"))
1926     t))
1927
1928 ;; Encodes with uuencode and adds MIME headers.
1929 (defun gnus-uu-post-encode-mime-uuencode (path file-name)
1930   (when (gnus-uu-post-encode-uuencode path file-name)
1931     (gnus-uu-post-make-mime file-name "x-uue")
1932     t))
1933
1934 ;; Encodes with base64 and adds MIME headers
1935 (defun gnus-uu-post-encode-mime (path file-name)
1936   (when (zerop (call-process shell-file-name nil t nil shell-command-switch
1937                              (format "%s %s -o %s" "mmencode" path file-name)))
1938     (gnus-uu-post-make-mime file-name "base64")
1939     t))
1940
1941 ;; Adds MIME headers.
1942 (defun gnus-uu-post-make-mime (file-name encoding)
1943   (goto-char (point-min))
1944   (insert (format "Content-Type: %s; name=\"%s\"\n"
1945                   (gnus-uu-choose-action file-name gnus-uu-ext-to-mime-list)
1946                   file-name))
1947   (insert (format "Content-Transfer-Encoding: %s\n\n" encoding))
1948   (save-restriction
1949     (set-buffer gnus-message-buffer)
1950     (goto-char (point-min))
1951     (re-search-forward (concat "^" (regexp-quote mail-header-separator) "$"))
1952     (forward-line -1)
1953     (narrow-to-region 1 (point))
1954     (unless (mail-fetch-field "mime-version")
1955       (widen)
1956       (insert "MIME-Version: 1.0\n"))
1957     (widen)))
1958
1959 ;; Encodes a file PATH with COMMAND, leaving the result in the
1960 ;; current buffer.
1961 (defun gnus-uu-post-encode-file (command path file-name)
1962   (= 0 (call-process shell-file-name nil t nil shell-command-switch
1963                      (format "%s %s %s" command path file-name))))
1964
1965 (defun gnus-uu-post-news-inews ()
1966   "Posts the composed news article and encoded file.
1967 If no file has been included, the user will be asked for a file."
1968   (interactive)
1969
1970   (let (file-name)
1971
1972     (if gnus-uu-post-inserted-file-name
1973         (setq file-name gnus-uu-post-inserted-file-name)
1974       (setq file-name (gnus-uu-post-insert-binary)))
1975
1976     (gnus-uu-post-encoded file-name gnus-uu-post-threaded))
1977   (setq gnus-uu-post-inserted-file-name nil)
1978   (when gnus-uu-winconf-post-news
1979     (set-window-configuration gnus-uu-winconf-post-news)))
1980
1981 ;; Asks for a file to encode, encodes it and inserts the result in
1982 ;; the current buffer.  Returns the file name the user gave.
1983 (defun gnus-uu-post-insert-binary ()
1984   (let ((uuencode-buffer-name "*uuencode buffer*")
1985         file-path uubuf file-name)
1986
1987     (setq file-path (read-file-name
1988                      "What file do you want to encode? "))
1989     (when (not (file-exists-p file-path))
1990       (error "%s: No such file" file-path))
1991
1992     (goto-char (point-max))
1993     (insert (format "\n%s\n" gnus-uu-post-binary-separator))
1994
1995     ;; #### Unix-specific?
1996     (when (string-match "^~/" file-path)
1997       (setq file-path (concat "$HOME" (substring file-path 1))))
1998     ;; #### Unix-specific?
1999     (if (string-match "/[^/]*$" file-path)
2000         (setq file-name (substring file-path (1+ (match-beginning 0))))
2001       (setq file-name file-path))
2002
2003     (unwind-protect
2004         (if (save-excursion
2005               (set-buffer (setq uubuf
2006                                 (gnus-get-buffer-create uuencode-buffer-name)))
2007               (erase-buffer)
2008               (funcall gnus-uu-post-encode-method file-path file-name))
2009             (insert-buffer-substring uubuf)
2010           (error "Encoding unsuccessful"))
2011       (kill-buffer uubuf))
2012     file-name))
2013
2014 ;; Posts the article and all of the encoded file.
2015 (defun gnus-uu-post-encoded (file-name &optional threaded)
2016   (let ((send-buffer-name "*uuencode send buffer*")
2017         (encoded-buffer-name "*encoded buffer*")
2018         (top-string "[ cut here %s (%s %d/%d) %s gnus-uu ]")
2019         (separator (concat mail-header-separator "\n\n"))
2020         uubuf length parts header i end beg
2021         beg-line minlen post-buf whole-len beg-binary end-binary)
2022
2023     (setq post-buf (current-buffer))
2024
2025     (goto-char (point-min))
2026     (when (not (re-search-forward
2027                 (if gnus-uu-post-separate-description
2028                     (concat "^" (regexp-quote gnus-uu-post-binary-separator)
2029                             "$")
2030                   (concat "^" (regexp-quote mail-header-separator) "$"))
2031                 nil t))
2032       (error "Internal error: No binary/header separator"))
2033     (beginning-of-line)
2034     (forward-line 1)
2035     (setq beg-binary (point))
2036     (setq end-binary (point-max))
2037
2038     (save-excursion
2039       (set-buffer (setq uubuf (gnus-get-buffer-create encoded-buffer-name)))
2040       (erase-buffer)
2041       (insert-buffer-substring post-buf beg-binary end-binary)
2042       (goto-char (point-min))
2043       (setq length (count-lines 1 (point-max)))
2044       (setq parts (/ length gnus-uu-post-length))
2045       (unless (< (% length gnus-uu-post-length) 4)
2046         (incf parts)))
2047
2048     (when gnus-uu-post-separate-description
2049       (forward-line -1))
2050     (delete-region (point) (point-max))
2051
2052     (goto-char (point-min))
2053     (re-search-forward
2054      (concat "^" (regexp-quote mail-header-separator) "$") nil t)
2055     (beginning-of-line)
2056     (setq header (buffer-substring 1 (point)))
2057
2058     (goto-char (point-min))
2059     (when gnus-uu-post-separate-description
2060       (when (re-search-forward "^Subject: " nil t)
2061         (end-of-line)
2062         (insert (format " (0/%d)" parts)))
2063       (save-excursion
2064         (message-send))
2065       (setq gnus-uu-post-message-id (message-fetch-field "message-id")))
2066
2067     (save-excursion
2068       (setq i 1)
2069       (setq beg 1)
2070       (while (not (> i parts))
2071         (set-buffer (gnus-get-buffer-create send-buffer-name))
2072         (erase-buffer)
2073         (insert header)
2074         (when (and threaded gnus-uu-post-message-id)
2075           (insert "References: " gnus-uu-post-message-id "\n"))
2076         (insert separator)
2077         (setq whole-len
2078               (- 62 (length (format top-string "" file-name i parts ""))))
2079         (when (> 1 (setq minlen (/ whole-len 2)))
2080           (setq minlen 1))
2081         (setq
2082          beg-line
2083          (format top-string
2084                  (make-string minlen ?-)
2085                  file-name i parts
2086                  (make-string
2087                   (if (= 0 (% whole-len 2)) (1- minlen) minlen) ?-)))
2088
2089         (goto-char (point-min))
2090         (when (re-search-forward "^Subject: " nil t)
2091           (end-of-line)
2092           (insert (format " (%d/%d)" i parts)))
2093
2094         (goto-char (point-max))
2095         (save-excursion
2096           (set-buffer uubuf)
2097           (goto-char beg)
2098           (if (= i parts)
2099               (goto-char (point-max))
2100             (forward-line gnus-uu-post-length))
2101           (when (and (= (1+ i) parts) (< (count-lines (point) (point-max)) 4))
2102             (forward-line -4))
2103           (setq end (point)))
2104         (insert-buffer-substring uubuf beg end)
2105         (insert beg-line "\n")
2106         (setq beg end)
2107         (incf i)
2108         (goto-char (point-min))
2109         (re-search-forward
2110          (concat "^" (regexp-quote mail-header-separator) "$") nil t)
2111         (beginning-of-line)
2112         (forward-line 2)
2113         (when (re-search-forward
2114                (concat "^" (regexp-quote gnus-uu-post-binary-separator) "$")
2115                nil t)
2116           (replace-match "")
2117           (forward-line 1))
2118         (insert beg-line)
2119         (insert "\n")
2120         (let (message-sent-message-via)
2121           (save-excursion
2122             (message-send))
2123           (setq gnus-uu-post-message-id
2124                 (concat (message-fetch-field "references") " "
2125                         (message-fetch-field "message-id"))))))
2126
2127     (gnus-kill-buffer send-buffer-name)
2128     (gnus-kill-buffer encoded-buffer-name)
2129
2130     (when (not gnus-uu-post-separate-description)
2131       (set-buffer-modified-p nil)
2132       (when (fboundp 'bury-buffer)
2133         (bury-buffer)))))
2134
2135 (provide 'gnus-uu)
2136
2137 ;;; gnus-uu.el ends here