lisp/gnus/gnus-uu.el

   1 ;;; gnus-uu.el --- extract (uu)encoded files in Gnus
   2 ;; Copyright (C) 1985,86,87,93,94,95,96,97,98 Free Software Foundation, Inc.
   3
   4 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
   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 (eval-when-compile (require 'cl))
  32
  33 (require 'gnus)
  34 (require 'gnus-art)
  35 (require 'message)
  36 (require 'gnus-msg)
  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\\)$" "xv")
  63     ("\\.tga$" "tgatoppm %s | xv -")
  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 temporary-file-directory
 221   "*Variable saying where gnus-uu is to do its work.
 222 Defaults to `temporary-file-directory'."
 223   :group 'gnus-extract
 224   :type 'directory)
 225
 226 (defcustom gnus-uu-do-not-unpack-archives nil
 227   "*Non-nil means that gnus-uu won't peek inside archives looking for files to display.
 228 Default is nil."
 229   :group 'gnus-extract-archive
 230   :type 'boolean)
 231
 232 (defcustom gnus-uu-ignore-default-view-rules nil
 233   "*Non-nil means that gnus-uu will ignore the default viewing rules.
 234 Only the user viewing rules will be consulted.  Default is nil."
 235   :group 'gnus-extract-view
 236   :type 'boolean)
 237
 238 (defcustom gnus-uu-grabbed-file-functions nil
 239   "Functions run on each file after successful decoding.
 240 They will be called with the name of the file as the argument.
 241 Likely functions you can use in this list are `gnus-uu-grab-view'
 242 and `gnus-uu-grab-move'."
 243   :group 'gnus-extract
 244   :options '(gnus-uu-grab-view gnus-uu-grab-move)
 245   :type 'hook)
 246
 247 (defcustom gnus-uu-ignore-default-archive-rules nil
 248   "*Non-nil means that gnus-uu will ignore the default archive unpacking commands.
 249 Only the user unpacking commands will be consulted.  Default is nil."
 250   :group 'gnus-extract-archive
 251   :type 'boolean)
 252
 253 (defcustom gnus-uu-kill-carriage-return t
 254   "*Non-nil means that gnus-uu will strip all carriage returns from articles.
 255 Default is t."
 256   :group 'gnus-extract
 257   :type 'boolean)
 258
 259 (defcustom gnus-uu-view-with-metamail nil
 260   "*Non-nil means that files will be viewed with metamail.
 261 The gnus-uu viewing functions will be ignored and gnus-uu will try
 262 to guess at a content-type based on file name suffixes.  Default
 263 it nil."
 264   :group 'gnus-extract
 265   :type 'boolean)
 266
 267 (defcustom gnus-uu-unmark-articles-not-decoded nil
 268   "*Non-nil means that gnus-uu will mark articles that were unsuccessfully decoded as unread.
 269 Default is nil."
 270   :group 'gnus-extract
 271   :type 'boolean)
 272
 273 (defcustom gnus-uu-correct-stripped-uucode nil
 274   "*Non-nil means that gnus-uu will *try* to fix uuencoded files that have had trailing spaces deleted.
 275 Default is nil."
 276   :group 'gnus-extract
 277   :type 'boolean)
 278
 279 (defcustom gnus-uu-save-in-digest nil
 280   "*Non-nil means that gnus-uu, when asked to save without decoding, will save in digests.
 281 If this variable is nil, gnus-uu will just save everything in a
 282 file without any embellishments.  The digesting almost conforms to RFC1153 -
 283 no easy way to specify any meaningful volume and issue numbers were found,
 284 so I simply dropped them."
 285   :group 'gnus-extract
 286   :type 'boolean)
 287
 288 (defcustom gnus-uu-pre-uudecode-hook nil
 289   "Hook run before sending a message to uudecode."
 290   :group 'gnus-extract
 291   :type 'hook)
 292
 293 (defcustom gnus-uu-digest-headers
 294   '("^Date:" "^From:" "^To:" "^Cc:" "^Subject:" "^Message-ID:" "^Keywords:"
 295     "^Summary:" "^References:" "^Content-Type:" "^Content-Transfer-Encoding:")
 296   "*List of regexps to match headers included in digested messages.
 297 The headers will be included in the sequence they are matched."
 298   :group 'gnus-extract
 299   :type '(repeat regexp))
 300
 301 (defcustom gnus-uu-save-separate-articles nil
 302   "*Non-nil means that gnus-uu will save articles in separate files."
 303   :group 'gnus-extract
 304   :type 'boolean)
 305
 306 (defcustom gnus-uu-be-dangerous 'ask
 307   "*Specifies what to do if unusual situations arise during decoding.
 308 If nil, be as conservative as possible.  If t, ignore things that
 309 didn't work, and overwrite existing files.  Otherwise, ask each time."
 310   :group 'gnus-extract
 311   :type '(choice (const :tag "conservative" nil)
 312                  (const :tag "ask" ask)
 313                  (const :tag "liberal" t)))
 314
 315 ;; Internal variables
 316
 317 (defvar gnus-uu-saved-article-name nil)
 318
 319 (defvar gnus-uu-begin-string "^begin[ \t]+[0-7][0-7][0-7][ \t]+\\(.*\\)$")
 320 (defvar gnus-uu-end-string "^end[ \t]*$")
 321
 322 (defvar gnus-uu-body-line "^M")
 323 (let ((i 61))
 324   (while (> (setq i (1- i)) 0)
 325     (setq gnus-uu-body-line (concat gnus-uu-body-line "[^a-z]")))
 326   (setq gnus-uu-body-line (concat gnus-uu-body-line ".?$")))
 327
 328 ;"^M.............................................................?$"
 329
 330 (defvar gnus-uu-shar-begin-string "^#! */bin/sh")
 331
 332 (defvar gnus-uu-shar-file-name nil)
 333 (defvar gnus-uu-shar-name-marker "begin [0-7][0-7][0-7][ \t]+\\(\\(\\w\\|\\.\\)*\\b\\)")
 334
 335 (defvar gnus-uu-postscript-begin-string "^%!PS-")
 336 (defvar gnus-uu-postscript-end-string "^%%EOF$")
 337
 338 (defvar gnus-uu-file-name nil)
 339 (defvar gnus-uu-uudecode-process nil)
 340 (defvar gnus-uu-binhex-article-name nil)
 341
 342 (defvar gnus-uu-work-dir nil)
 343
 344 (defvar gnus-uu-output-buffer-name " *Gnus UU Output*")
 345
 346 (defvar gnus-uu-default-dir gnus-article-save-directory)
 347 (defvar gnus-uu-digest-from-subject nil)
 348
 349 ;; Keymaps
 350
 351 (gnus-define-keys (gnus-uu-mark-map "P" gnus-summary-mark-map)
 352   "p" gnus-summary-mark-as-processable
 353   "u" gnus-summary-unmark-as-processable
 354   "U" gnus-summary-unmark-all-processable
 355   "v" gnus-uu-mark-over
 356   "s" gnus-uu-mark-series
 357   "r" gnus-uu-mark-region
 358   "g" gnus-uu-unmark-region
 359   "R" gnus-uu-mark-by-regexp
 360   "G" gnus-uu-unmark-by-regexp
 361   "t" gnus-uu-mark-thread
 362   "T" gnus-uu-unmark-thread
 363   "a" gnus-uu-mark-all
 364   "b" gnus-uu-mark-buffer
 365   "S" gnus-uu-mark-sparse
 366   "k" gnus-summary-kill-process-mark
 367   "y" gnus-summary-yank-process-mark
 368   "w" gnus-summary-save-process-mark
 369   "i" gnus-uu-invert-processable)
 370
 371 (gnus-define-keys (gnus-uu-extract-map "X" gnus-summary-mode-map)
 372   ;;"x" gnus-uu-extract-any
 373   ;;"m" gnus-uu-extract-mime
 374   "u" gnus-uu-decode-uu
 375   "U" gnus-uu-decode-uu-and-save
 376   "s" gnus-uu-decode-unshar
 377   "S" gnus-uu-decode-unshar-and-save
 378   "o" gnus-uu-decode-save
 379   "O" gnus-uu-decode-save
 380   "b" gnus-uu-decode-binhex
 381   "B" gnus-uu-decode-binhex
 382   "p" gnus-uu-decode-postscript
 383   "P" gnus-uu-decode-postscript-and-save)
 384
 385 (gnus-define-keys
 386  (gnus-uu-extract-view-map "v" gnus-uu-extract-map)
 387  "u" gnus-uu-decode-uu-view
 388  "U" gnus-uu-decode-uu-and-save-view
 389  "s" gnus-uu-decode-unshar-view
 390  "S" gnus-uu-decode-unshar-and-save-view
 391  "o" gnus-uu-decode-save-view
 392  "O" gnus-uu-decode-save-view
 393  "b" gnus-uu-decode-binhex-view
 394  "B" gnus-uu-decode-binhex-view
 395  "p" gnus-uu-decode-postscript-view
 396  "P" gnus-uu-decode-postscript-and-save-view)
 397
 398
 399 ;; Commands.
 400
 401 (defun gnus-uu-decode-uu (&optional n)
 402   "Uudecodes the current article."
 403   (interactive "P")
 404   (gnus-uu-decode-with-method 'gnus-uu-uustrip-article n))
 405
 406 (defun gnus-uu-decode-uu-and-save (n dir)
 407   "Decodes and saves the resulting file."
 408   (interactive
 409    (list current-prefix-arg
 410          (file-name-as-directory
 411           (read-file-name "Uudecode and save in dir: "
 412                           gnus-uu-default-dir
 413                           gnus-uu-default-dir t))))
 414   (gnus-uu-decode-with-method 'gnus-uu-uustrip-article n dir nil nil t))
 415
 416 (defun gnus-uu-decode-unshar (&optional n)
 417   "Unshars the current article."
 418   (interactive "P")
 419   (gnus-uu-decode-with-method 'gnus-uu-unshar-article n nil nil 'scan t))
 420
 421 (defun gnus-uu-decode-unshar-and-save (n dir)
 422   "Unshars and saves the current article."
 423   (interactive
 424    (list current-prefix-arg
 425          (file-name-as-directory
 426           (read-file-name "Unshar and save in dir: "
 427                           gnus-uu-default-dir
 428                           gnus-uu-default-dir t))))
 429   (gnus-uu-decode-with-method 'gnus-uu-unshar-article n dir nil 'scan t))
 430
 431 (defun gnus-uu-decode-save (n file)
 432   "Saves the current article."
 433   (interactive
 434    (list current-prefix-arg
 435          (read-file-name
 436           (if gnus-uu-save-separate-articles
 437               "Save articles is dir: "
 438             "Save articles in file: ")
 439           gnus-uu-default-dir
 440           gnus-uu-default-dir)))
 441   (setq gnus-uu-saved-article-name file)
 442   (gnus-uu-decode-with-method 'gnus-uu-save-article n nil t))
 443
 444 (defun gnus-uu-decode-binhex (n dir)
 445   "Unbinhexes the current article."
 446   (interactive
 447    (list current-prefix-arg
 448          (file-name-as-directory
 449           (read-file-name "Unbinhex and save in dir: "
 450                           gnus-uu-default-dir
 451                           gnus-uu-default-dir))))
 452   (setq gnus-uu-binhex-article-name
 453         (make-temp-file (concat gnus-uu-work-dir "binhex")))
 454   (gnus-uu-decode-with-method 'gnus-uu-binhex-article n dir))
 455
 456 (defun gnus-uu-decode-uu-view (&optional n)
 457   "Uudecodes and views the current article."
 458   (interactive "P")
 459   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 460     (gnus-uu-decode-uu n)))
 461
 462 (defun gnus-uu-decode-uu-and-save-view (n dir)
 463   "Decodes, views and saves the resulting file."
 464   (interactive
 465    (list current-prefix-arg
 466          (read-file-name "Uudecode, view and save in dir: "
 467                          gnus-uu-default-dir
 468                          gnus-uu-default-dir t)))
 469   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 470     (gnus-uu-decode-uu-and-save n dir)))
 471
 472 (defun gnus-uu-decode-unshar-view (&optional n)
 473   "Unshars and views the current article."
 474   (interactive "P")
 475   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 476     (gnus-uu-decode-unshar n)))
 477
 478 (defun gnus-uu-decode-unshar-and-save-view (n dir)
 479   "Unshars and saves the current article."
 480   (interactive
 481    (list current-prefix-arg
 482          (read-file-name "Unshar, view and save in dir: "
 483                          gnus-uu-default-dir
 484                          gnus-uu-default-dir t)))
 485   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 486     (gnus-uu-decode-unshar-and-save n dir)))
 487
 488 (defun gnus-uu-decode-save-view (n file)
 489   "Saves and views the current article."
 490   (interactive
 491    (list current-prefix-arg
 492          (read-file-name  (if gnus-uu-save-separate-articles
 493                               "Save articles in dir: "
 494                             "Save articles in file: ")
 495                           gnus-uu-default-dir gnus-uu-default-dir)))
 496   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 497     (gnus-uu-decode-save n file)))
 498
 499 (defun gnus-uu-decode-binhex-view (n file)
 500   "Unbinhexes and views the current article."
 501   (interactive
 502    (list current-prefix-arg
 503          (read-file-name "Unbinhex, view and save in dir: "
 504                          gnus-uu-default-dir gnus-uu-default-dir)))
 505   (setq gnus-uu-binhex-article-name
 506         (make-temp-file (concat gnus-uu-work-dir "binhex")))
 507   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 508     (gnus-uu-decode-binhex n file)))
 509
 510
 511 ;; Digest and forward articles
 512
 513 (defun gnus-uu-digest-mail-forward (&optional n post)
 514   "Digests and forwards all articles in this series."
 515   (interactive "P")
 516   (let ((gnus-uu-save-in-digest t)
 517         (file (make-temp-file (nnheader-concat gnus-uu-tmp-dir "forward")))
 518         buf subject from)
 519     (gnus-setup-message 'forward
 520       (setq gnus-uu-digest-from-subject nil)
 521       (gnus-uu-decode-save n file)
 522       (setq buf (switch-to-buffer
 523                  (gnus-get-buffer-create " *gnus-uu-forward*")))
 524       (erase-buffer)
 525       (insert-file file)
 526       (let ((fs gnus-uu-digest-from-subject))
 527         (when fs
 528           (setq from (caar fs)
 529                 subject (gnus-simplify-subject-fuzzy (cdar fs))
 530                 fs (cdr fs))
 531           (while (and fs (or from subject))
 532             (when from
 533               (unless (string= from (caar fs))
 534                 (setq from nil)))
 535             (when subject
 536               (unless (string= (gnus-simplify-subject-fuzzy (cdar fs))
 537                                subject)
 538                 (setq subject nil)))
 539             (setq fs (cdr fs))))
 540         (unless subject
 541           (setq subject "Digested Articles"))
 542         (unless from
 543           (setq from
 544                 (if (gnus-news-group-p gnus-newsgroup-name)
 545                     gnus-newsgroup-name
 546                   "Various"))))
 547       (goto-char (point-min))
 548       (when (re-search-forward "^Subject: ")
 549         (delete-region (point) (gnus-point-at-eol))
 550         (insert subject))
 551       (goto-char (point-min))
 552       (when (re-search-forward "^From: ")
 553         (delete-region (point) (gnus-point-at-eol))
 554         (insert from))
 555       (message-forward post))
 556     (delete-file file)
 557     (kill-buffer buf)
 558     (setq gnus-uu-digest-from-subject nil)))
 559
 560 (defun gnus-uu-digest-post-forward (&optional n)
 561   "Digest and forward to a newsgroup."
 562   (interactive "P")
 563   (gnus-uu-digest-mail-forward n t))
 564
 565 ;; Process marking.
 566
 567 (defun gnus-uu-mark-by-regexp (regexp &optional unmark)
 568   "Ask for a regular expression and set the process mark on all articles that match."
 569   (interactive (list (read-from-minibuffer "Mark (regexp): ")))
 570   (let ((articles (gnus-uu-find-articles-matching regexp)))
 571     (while articles
 572       (if unmark
 573           (gnus-summary-remove-process-mark (pop articles))
 574         (gnus-summary-set-process-mark (pop articles))))
 575     (message ""))
 576   (gnus-summary-position-point))
 577
 578 (defun gnus-uu-unmark-by-regexp (regexp &optional unmark)
 579   "Ask for a regular expression and remove the process mark on all articles that match."
 580   (interactive (list (read-from-minibuffer "Mark (regexp): ")))
 581   (gnus-uu-mark-by-regexp regexp t))
 582
 583 (defun gnus-uu-mark-series ()
 584   "Mark the current series with the process mark."
 585   (interactive)
 586   (let ((articles (gnus-uu-find-articles-matching)))
 587     (while articles
 588       (gnus-summary-set-process-mark (car articles))
 589       (setq articles (cdr articles)))
 590     (message ""))
 591   (gnus-summary-position-point))
 592
 593 (defun gnus-uu-mark-region (beg end &optional unmark)
 594   "Set the process mark on all articles between point and mark."
 595   (interactive "r")
 596   (save-excursion
 597     (goto-char beg)
 598     (while (< (point) end)
 599       (if unmark
 600           (gnus-summary-remove-process-mark (gnus-summary-article-number))
 601         (gnus-summary-set-process-mark (gnus-summary-article-number)))
 602       (forward-line 1)))
 603   (gnus-summary-position-point))
 604
 605 (defun gnus-uu-unmark-region (beg end)
 606   "Remove the process mark from all articles between point and mark."
 607   (interactive "r")
 608   (gnus-uu-mark-region beg end t))
 609
 610 (defun gnus-uu-mark-buffer ()
 611   "Set the process mark on all articles in the buffer."
 612   (interactive)
 613   (gnus-uu-mark-region (point-min) (point-max)))
 614
 615 (defun gnus-uu-unmark-buffer ()
 616   "Remove the process mark on all articles in the buffer."
 617   (interactive)
 618   (gnus-uu-mark-region (point-min) (point-max) t))
 619
 620 (defun gnus-uu-mark-thread ()
 621   "Marks all articles downwards in this thread."
 622   (interactive)
 623   (let ((level (gnus-summary-thread-level)))
 624     (while (and (gnus-summary-set-process-mark (gnus-summary-article-number))
 625                 (zerop (gnus-summary-next-subject 1))
 626                 (> (gnus-summary-thread-level) level))))
 627   (gnus-summary-position-point))
 628
 629 (defun gnus-uu-unmark-thread ()
 630   "Unmarks all articles downwards in this thread."
 631   (interactive)
 632   (let ((level (gnus-summary-thread-level)))
 633     (while (and (gnus-summary-remove-process-mark
 634                  (gnus-summary-article-number))
 635                 (zerop (gnus-summary-next-subject 1))
 636                 (> (gnus-summary-thread-level) level))))
 637   (gnus-summary-position-point))
 638
 639 (defun gnus-uu-invert-processable ()
 640   "Invert the list of process-marked articles."
 641   (interactive)
 642   (let ((data gnus-newsgroup-data)
 643         number)
 644     (save-excursion
 645       (while data
 646         (if (memq (setq number (gnus-data-number (pop data)))
 647                   gnus-newsgroup-processable)
 648             (gnus-summary-remove-process-mark number)
 649           (gnus-summary-set-process-mark number)))))
 650   (gnus-summary-position-point))
 651
 652 (defun gnus-uu-mark-over (&optional score)
 653   "Mark all articles with a score over SCORE (the prefix)."
 654   (interactive "P")
 655   (let ((score (gnus-score-default score))
 656         (data gnus-newsgroup-data))
 657     (save-excursion
 658       (while data
 659         (when (> (or (cdr (assq (gnus-data-number (car data))
 660                                 gnus-newsgroup-scored))
 661                      gnus-summary-default-score 0)
 662                  score)
 663           (gnus-summary-set-process-mark (caar data)))
 664         (setq data (cdr data))))
 665     (gnus-summary-position-point)))
 666
 667 (defun gnus-uu-mark-sparse ()
 668   "Mark all series that have some articles marked."
 669   (interactive)
 670   (let ((marked (nreverse gnus-newsgroup-processable))
 671         subject articles total headers)
 672     (unless marked
 673       (error "No articles marked with the process mark"))
 674     (setq gnus-newsgroup-processable nil)
 675     (save-excursion
 676       (while marked
 677         (and (vectorp (setq headers
 678                             (gnus-summary-article-header (car marked))))
 679              (setq subject (mail-header-subject headers)
 680                    articles (gnus-uu-find-articles-matching
 681                              (gnus-uu-reginize-string subject))
 682                    total (nconc total articles)))
 683         (while articles
 684           (gnus-summary-set-process-mark (car articles))
 685           (setcdr marked (delq (car articles) (cdr marked)))
 686           (setq articles (cdr articles)))
 687         (setq marked (cdr marked)))
 688       (setq gnus-newsgroup-processable (nreverse total)))
 689     (gnus-summary-position-point)))
 690
 691 (defun gnus-uu-mark-all ()
 692   "Mark all articles in \"series\" order."
 693   (interactive)
 694   (setq gnus-newsgroup-processable nil)
 695   (save-excursion
 696     (let ((data gnus-newsgroup-data)
 697           number)
 698       (while data
 699         (when (and (not (memq (setq number (gnus-data-number (car data)))
 700                               gnus-newsgroup-processable))
 701                    (vectorp (gnus-data-header (car data))))
 702           (gnus-summary-goto-subject number)
 703           (gnus-uu-mark-series))
 704         (setq data (cdr data)))))
 705   (gnus-summary-position-point))
 706
 707 ;; All PostScript functions written by Erik Selberg <speed@cs.washington.edu>.
 708
 709 (defun gnus-uu-decode-postscript (&optional n)
 710   "Gets postscript of the current article."
 711   (interactive "P")
 712   (gnus-uu-decode-with-method 'gnus-uu-decode-postscript-article n))
 713
 714 (defun gnus-uu-decode-postscript-view (&optional n)
 715   "Gets and views the current article."
 716   (interactive "P")
 717   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 718     (gnus-uu-decode-postscript n)))
 719
 720 (defun gnus-uu-decode-postscript-and-save (n dir)
 721   "Extracts postscript and saves the current article."
 722   (interactive
 723    (list current-prefix-arg
 724          (file-name-as-directory
 725           (read-file-name "Save in dir: "
 726                           gnus-uu-default-dir
 727                           gnus-uu-default-dir t))))
 728   (gnus-uu-decode-with-method 'gnus-uu-decode-postscript-article
 729                               n dir nil nil t))
 730
 731 (defun gnus-uu-decode-postscript-and-save-view (n dir)
 732   "Decodes, views and saves the resulting file."
 733   (interactive
 734    (list current-prefix-arg
 735          (read-file-name "Where do you want to save the file(s)? "
 736                          gnus-uu-default-dir
 737                          gnus-uu-default-dir t)))
 738   (let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
 739     (gnus-uu-decode-postscript-and-save n dir)))
 740
 741
 742 ;; Internal functions.
 743
 744 (defun gnus-uu-decode-with-method (method n &optional save not-insert
 745                                           scan cdir)
 746   (gnus-uu-initialize scan)
 747   (when save
 748     (setq gnus-uu-default-dir save))
 749   ;; Create the directory we save to.
 750   (when (and scan cdir save
 751              (not (file-exists-p save)))
 752     (make-directory save t))
 753   (let ((articles (gnus-uu-get-list-of-articles n))
 754         files)
 755     (setq files (gnus-uu-grab-articles articles method t))
 756     (let ((gnus-current-article (car articles)))
 757       (when scan
 758         (setq files (gnus-uu-scan-directory gnus-uu-work-dir))))
 759     (when save
 760       (gnus-uu-save-files files save))
 761     (when (eq gnus-uu-do-not-unpack-archives nil)
 762       (setq files (gnus-uu-unpack-files files)))
 763     (setq files (nreverse (gnus-uu-get-actions files)))
 764     (or not-insert (not gnus-insert-pseudo-articles)
 765         (gnus-summary-insert-pseudos files save))))
 766
 767 (defun gnus-uu-scan-directory (dir &optional rec)
 768   "Return a list of all files under DIR."
 769   (let ((files (directory-files dir t))
 770         out file)
 771     (while (setq file (pop files))
 772       (unless (member (file-name-nondirectory file) '("." ".."))
 773         (push (list (cons 'name file)
 774                     (cons 'article gnus-current-article))
 775               out)
 776         (when (file-directory-p file)
 777           (setq out (nconc (gnus-uu-scan-directory file t) out)))))
 778     (if rec
 779         out
 780       (nreverse out))))
 781
 782 (defun gnus-uu-save-files (files dir)
 783   "Save FILES in DIR."
 784   (let ((len (length files))
 785         (reg (concat "^" (regexp-quote gnus-uu-work-dir)))
 786         to-file file fromdir)
 787     (while (setq file (cdr (assq 'name (pop files))))
 788       (when (file-exists-p file)
 789         (string-match reg file)
 790         (setq fromdir (substring file (match-end 0)))
 791         (if (file-directory-p file)
 792             (gnus-make-directory (concat dir fromdir))
 793           (setq to-file (concat dir fromdir))
 794           (when (or (not (file-exists-p to-file))
 795                     (eq gnus-uu-be-dangerous t)
 796                     (and gnus-uu-be-dangerous
 797                          (gnus-y-or-n-p (format "%s exists; overwrite? "
 798                                                 to-file))))
 799             (copy-file file to-file t t)))))
 800     (gnus-message 5 "Saved %d file%s" len (if (= len 1) "" "s"))))
 801
 802 ;; Functions for saving and possibly digesting articles without
 803 ;; any decoding.
 804
 805 ;; Function called by gnus-uu-grab-articles to treat each article.
 806 (defun gnus-uu-save-article (buffer in-state)
 807   (cond
 808    (gnus-uu-save-separate-articles
 809     (save-excursion
 810       (set-buffer buffer)
 811       (gnus-write-buffer
 812        (concat gnus-uu-saved-article-name gnus-current-article))
 813       (cond ((eq in-state 'first) (list gnus-uu-saved-article-name 'begin))
 814             ((eq in-state 'first-and-last) (list gnus-uu-saved-article-name
 815                                                  'begin 'end))
 816             ((eq in-state 'last) (list 'end))
 817             (t (list 'middle)))))
 818    ((not gnus-uu-save-in-digest)
 819     (save-excursion
 820       (set-buffer buffer)
 821       (write-region (point-min) (point-max) gnus-uu-saved-article-name t)
 822       (cond ((eq in-state 'first) (list gnus-uu-saved-article-name 'begin))
 823             ((eq in-state 'first-and-last) (list gnus-uu-saved-article-name
 824                                                  'begin 'end))
 825             ((eq in-state 'last) (list 'end))
 826             (t (list 'middle)))))
 827    (t
 828     (let ((header (gnus-summary-article-header)))
 829       (push (cons (mail-header-from header)
 830                   (mail-header-subject header))
 831             gnus-uu-digest-from-subject))
 832     (let ((name (file-name-nondirectory gnus-uu-saved-article-name))
 833           beg subj headers headline sorthead body end-string state)
 834       (if (or (eq in-state 'first)
 835               (eq in-state 'first-and-last))
 836           (progn
 837             (setq state (list 'begin))
 838             (save-excursion (set-buffer (gnus-get-buffer-create "*gnus-uu-body*"))
 839                             (erase-buffer))
 840             (save-excursion
 841               (set-buffer (gnus-get-buffer-create "*gnus-uu-pre*"))
 842               (erase-buffer)
 843               (insert (format
 844                        "Date: %s\nFrom: %s\nSubject: %s Digest\n\nTopics:\n"
 845                        (current-time-string) name name))))
 846         (when (not (eq in-state 'end))
 847           (setq state (list 'middle))))
 848       (save-excursion
 849         (set-buffer "*gnus-uu-body*")
 850         (goto-char (setq beg (point-max)))
 851         (save-excursion
 852           (save-restriction
 853             (set-buffer buffer)
 854             (let (buffer-read-only)
 855               (gnus-set-text-properties (point-min) (point-max) nil)
 856               ;; These two are necessary for XEmacs 19.12 fascism.
 857               (put-text-property (point-min) (point-max) 'invisible nil)
 858               (put-text-property (point-min) (point-max) 'intangible nil))
 859             (goto-char (point-min))
 860             (re-search-forward "\n\n")
 861             ;; Quote all 30-dash lines.
 862             (save-excursion
 863               (while (re-search-forward "^-" nil t)
 864                 (beginning-of-line)
 865                 (delete-char 1)
 866                 (insert "- ")))
 867             (setq body (buffer-substring (1- (point)) (point-max)))
 868             (narrow-to-region (point-min) (point))
 869             (if (not (setq headers gnus-uu-digest-headers))
 870                 (setq sorthead (buffer-substring (point-min) (point-max)))
 871               (while headers
 872                 (setq headline (car headers))
 873                 (setq headers (cdr headers))
 874                 (goto-char (point-min))
 875                 (while (re-search-forward headline nil t)
 876                   (setq sorthead
 877                         (concat sorthead
 878                                 (buffer-substring
 879                                  (match-beginning 0)
 880                                  (or (and (re-search-forward "^[^ \t]" nil t)
 881                                           (1- (point)))
 882                                      (progn (forward-line 1) (point)))))))))
 883             (widen)))
 884         (insert sorthead) (goto-char (point-max))
 885         (insert body) (goto-char (point-max))
 886         (insert (concat "\n" (make-string 30 ?-) "\n\n"))
 887         (goto-char beg)
 888         (when (re-search-forward "^Subject: \\(.*\\)$" nil t)
 889           (setq subj (buffer-substring (match-beginning 1) (match-end 1)))
 890           (save-excursion
 891             (set-buffer "*gnus-uu-pre*")
 892             (insert (format "   %s\n" subj)))))
 893       (when (or (eq in-state 'last)
 894                 (eq in-state 'first-and-last))
 895         (save-excursion
 896           (set-buffer "*gnus-uu-pre*")
 897           (insert (format "\n\n%s\n\n" (make-string 70 ?-)))
 898           (gnus-write-buffer gnus-uu-saved-article-name))
 899         (save-excursion
 900           (set-buffer "*gnus-uu-body*")
 901           (goto-char (point-max))
 902           (insert
 903            (concat (setq end-string (format "End of %s Digest" name))
 904                    "\n"))
 905           (insert (concat (make-string (length end-string) ?*) "\n"))
 906           (write-region
 907            (point-min) (point-max) gnus-uu-saved-article-name t))
 908         (gnus-kill-buffer "*gnus-uu-pre*")
 909         (gnus-kill-buffer "*gnus-uu-body*")
 910         (push 'end state))
 911       (if (memq 'begin state)
 912           (cons gnus-uu-saved-article-name state)
 913         state)))))
 914
 915 ;; Binhex treatment - not very advanced.
 916
 917 (defvar gnus-uu-binhex-body-line
 918   "^[^:]...............................................................$")
 919 (defvar gnus-uu-binhex-begin-line
 920   "^:...............................................................$")
 921 (defvar gnus-uu-binhex-end-line
 922   ":$")
 923
 924 (defun gnus-uu-binhex-article (buffer in-state)
 925   (let (state start-char)
 926     (save-excursion
 927       (set-buffer buffer)
 928       (widen)
 929       (goto-char (point-min))
 930       (when (not (re-search-forward gnus-uu-binhex-begin-line nil t))
 931         (when (not (re-search-forward gnus-uu-binhex-body-line nil t))
 932           (setq state (list 'wrong-type))))
 933
 934       (if (memq 'wrong-type state)
 935           ()
 936         (beginning-of-line)
 937         (setq start-char (point))
 938         (if (looking-at gnus-uu-binhex-begin-line)
 939             (progn
 940               (setq state (list 'begin))
 941               (write-region 1 1 gnus-uu-binhex-article-name))
 942           (setq state (list 'middle)))
 943         (goto-char (point-max))
 944         (re-search-backward (concat gnus-uu-binhex-body-line "\\|"
 945                                     gnus-uu-binhex-end-line)
 946                             nil t)
 947         (when (looking-at gnus-uu-binhex-end-line)
 948           (setq state (if (memq 'begin state)
 949                           (cons 'end state)
 950                         (list 'end))))
 951         (beginning-of-line)
 952         (forward-line 1)
 953         (when (file-exists-p gnus-uu-binhex-article-name)
 954           (append-to-file start-char (point) gnus-uu-binhex-article-name))))
 955     (if (memq 'begin state)
 956         (cons gnus-uu-binhex-article-name state)
 957       state)))
 958
 959 ;; PostScript
 960
 961 (defun gnus-uu-decode-postscript-article (process-buffer in-state)
 962   (let ((state (list 'ok))
 963         start-char end-char file-name)
 964     (save-excursion
 965       (set-buffer process-buffer)
 966       (goto-char (point-min))
 967       (if (not (re-search-forward gnus-uu-postscript-begin-string nil t))
 968           (setq state (list 'wrong-type))
 969         (beginning-of-line)
 970         (setq start-char (point))
 971         (if (not (re-search-forward gnus-uu-postscript-end-string nil t))
 972             (setq state (list 'wrong-type))
 973           (setq end-char (point))
 974           (set-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name))
 975           (insert-buffer-substring process-buffer start-char end-char)
 976           (setq file-name (concat gnus-uu-work-dir
 977                                   (cdr gnus-article-current) ".ps"))
 978           (write-region (point-min) (point-max) file-name)
 979           (setq state (list file-name 'begin 'end)))))
 980     state))
 981
 982
 983 ;; Find actions.
 984
 985 (defun gnus-uu-get-actions (files)
 986   (let ((ofiles files)
 987         action name)
 988     (while files
 989       (setq name (cdr (assq 'name (car files))))
 990       (and
 991        (setq action (gnus-uu-get-action name))
 992        (setcar files (nconc (list (if (string= action "gnus-uu-archive")
 993                                       (cons 'action "file")
 994                                     (cons 'action action))
 995                                   (cons 'execute (gnus-uu-command
 996                                                   action name)))
 997                             (car files))))
 998       (setq files (cdr files)))
 999     ofiles))
1000
1001 (defun gnus-uu-get-action (file-name)
1002   (let (action)
1003     (setq action
1004           (gnus-uu-choose-action
1005            file-name
1006            (append
1007             gnus-uu-user-view-rules
1008             (if gnus-uu-ignore-default-view-rules
1009                 nil
1010               gnus-uu-default-view-rules)
1011             gnus-uu-user-view-rules-end)))
1012     (when (and (not (string= (or action "") "gnus-uu-archive"))
1013                gnus-uu-view-with-metamail)
1014       (when (setq action
1015                   (gnus-uu-choose-action file-name gnus-uu-ext-to-mime-list))
1016         (setq action (format "metamail -d -b -c \"%s\"" action))))
1017     action))
1018
1019
1020 ;; Functions for treating subjects and collecting series.
1021
1022 (defun gnus-uu-reginize-string (string)
1023   ;; Takes a string and puts a \ in front of every special character;
1024   ;; replaces the last thing that looks like "2/3" with "[0-9]+/3"
1025   ;; or, if it can't find something like that, tries "2 of 3", then
1026   ;; finally just replaces the next to last number with "[0-9]+".
1027   (save-excursion
1028     (set-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name))
1029     (buffer-disable-undo (current-buffer))
1030     (erase-buffer)
1031     (insert (regexp-quote string))
1032
1033     (setq case-fold-search nil)
1034
1035     (end-of-line)
1036     (if (re-search-backward "\\([^0-9]\\)[0-9]+/\\([0-9]+\\)" nil t)
1037         (replace-match "\\1[0-9]+/\\2")
1038
1039       (end-of-line)
1040       (if (re-search-backward "\\([^0-9]\\)[0-9]+[ \t]*of[ \t]*\\([0-9]+\\)"
1041                               nil t)
1042           (replace-match "\\1[0-9]+ of \\2")
1043
1044         (end-of-line)
1045         (if (re-search-backward "\\([^0-9]\\)[0-9]+\\([^0-9]+\\)[0-9]+"
1046                                 nil t)
1047             (replace-match "\\1[0-9]+\\2[0-9]+" t nil nil nil))))
1048
1049     (goto-char 1)
1050     (while (re-search-forward "[ \t]+" nil t)
1051       (replace-match "[ \t]+" t t))
1052
1053     (buffer-substring 1 (point-max))))
1054
1055 (defun gnus-uu-get-list-of-articles (n)
1056   ;; If N is non-nil, the article numbers of the N next articles
1057   ;; will be returned.
1058   ;; If any articles have been marked as processable, they will be
1059   ;; returned.
1060   ;; Failing that, articles that have subjects that are part of the
1061   ;; same "series" as the current will be returned.
1062   (let (articles)
1063     (cond
1064      (n
1065       (setq n (prefix-numeric-value n))
1066       (let ((backward (< n 0))
1067             (n (abs n)))
1068         (save-excursion
1069           (while (and (> n 0)
1070                       (push (gnus-summary-article-number)
1071                             articles)
1072                       (gnus-summary-search-forward nil nil backward))
1073             (setq n (1- n))))
1074         (nreverse articles)))
1075      (gnus-newsgroup-processable
1076       (reverse gnus-newsgroup-processable))
1077      (t
1078       (gnus-uu-find-articles-matching)))))
1079
1080 (defun gnus-uu-string< (l1 l2)
1081   (string< (car l1) (car l2)))
1082
1083 (defun gnus-uu-find-articles-matching
1084   (&optional subject only-unread do-not-translate)
1085   ;; Finds all articles that matches the regexp SUBJECT.  If it is
1086   ;; nil, the current article name will be used.  If ONLY-UNREAD is
1087   ;; non-nil, only unread articles are chosen.  If DO-NOT-TRANSLATE is
1088   ;; non-nil, article names are not equalized before sorting.
1089   (let ((subject (or subject
1090                      (gnus-uu-reginize-string (gnus-summary-article-subject))))
1091         list-of-subjects)
1092     (save-excursion
1093       (when subject
1094         ;; Collect all subjects matching subject.
1095         (let ((case-fold-search t)
1096               (data gnus-newsgroup-data)
1097               subj mark d)
1098           (while data
1099             (setq d (pop data))
1100             (and (not (gnus-data-pseudo-p d))
1101                  (or (not only-unread)
1102                      (= (setq mark (gnus-data-mark d))
1103                         gnus-unread-mark)
1104                      (= mark gnus-ticked-mark)
1105                      (= mark gnus-dormant-mark))
1106                  (setq subj (mail-header-subject (gnus-data-header d)))
1107                  (string-match subject subj)
1108                  (push (cons subj (gnus-data-number d))
1109                        list-of-subjects))))
1110
1111         ;; Expand numbers, sort, and return the list of article
1112         ;; numbers.
1113         (mapcar (lambda (sub) (cdr sub))
1114                 (sort (gnus-uu-expand-numbers
1115                        list-of-subjects
1116                        (not do-not-translate))
1117                       'gnus-uu-string<))))))
1118
1119 (defun gnus-uu-expand-numbers (string-list &optional translate)
1120   ;; Takes a list of strings and "expands" all numbers in all the
1121   ;; strings.  That is, this function makes all numbers equal length by
1122   ;; prepending lots of zeroes before each number.  This is to ease later
1123   ;; sorting to find out what sequence the articles are supposed to be
1124   ;; decoded in.  Returns the list of expanded strings.
1125   (let ((out-list string-list)
1126         string)
1127     (save-excursion
1128       (set-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name))
1129       (buffer-disable-undo (current-buffer))
1130       (while string-list
1131         (erase-buffer)
1132         (insert (caar string-list))
1133         ;; Translate multiple spaces to one space.
1134         (goto-char (point-min))
1135         (while (re-search-forward "[ \t]+" nil t)
1136           (replace-match " "))
1137         ;; Translate all characters to "a".
1138         (goto-char (point-min))
1139         (when translate
1140           (while (re-search-forward "[A-Za-z]" nil t)
1141             (replace-match "a" t t)))
1142         ;; Expand numbers.
1143         (goto-char (point-min))
1144         (while (re-search-forward "[0-9]+" nil t)
1145           (replace-match
1146            (format "%06d"
1147                    (string-to-int (buffer-substring
1148                                    (match-beginning 0) (match-end 0))))))
1149         (setq string (buffer-substring 1 (point-max)))
1150         (setcar (car string-list) string)
1151         (setq string-list (cdr string-list))))
1152     out-list))
1153
1154
1155 ;; `gnus-uu-grab-articles' is the general multi-article treatment
1156 ;; function.  It takes a list of articles to be grabbed and a function
1157 ;; to apply to each article.
1158 ;;
1159 ;; The function to be called should take two parameters.  The first
1160 ;; parameter is the article buffer.  The function should leave the
1161 ;; result, if any, in this buffer.  Most treatment functions will just
1162 ;; generate files...
1163 ;;
1164 ;; The second parameter is the state of the list of articles, and can
1165 ;; have four values: `first', `middle', `last' and `first-and-last'.
1166 ;;
1167 ;; The function should return a list.  The list may contain the
1168 ;; following symbols:
1169 ;; `error' if an error occurred
1170 ;; `begin' if the beginning of an encoded file has been received
1171 ;;   If the list returned contains a `begin', the first element of
1172 ;;   the list *must* be a string with the file name of the decoded
1173 ;;   file.
1174 ;; `end' if the end of an encoded file has been received
1175 ;; `middle' if the article was a body part of an encoded file
1176 ;; `wrong-type' if the article was not a part of an encoded file
1177 ;; `ok', which can be used everything is ok
1178
1179 (defvar gnus-uu-has-been-grabbed nil)
1180
1181 (defun gnus-uu-unmark-list-of-grabbed (&optional dont-unmark-last-article)
1182   (let (art)
1183     (if (not (and gnus-uu-has-been-grabbed
1184                   gnus-uu-unmark-articles-not-decoded))
1185         ()
1186       (when dont-unmark-last-article
1187         (setq art (car gnus-uu-has-been-grabbed))
1188         (setq gnus-uu-has-been-grabbed (cdr gnus-uu-has-been-grabbed)))
1189       (while gnus-uu-has-been-grabbed
1190         (gnus-summary-tick-article (car gnus-uu-has-been-grabbed) t)
1191         (setq gnus-uu-has-been-grabbed (cdr gnus-uu-has-been-grabbed)))
1192       (when dont-unmark-last-article
1193         (setq gnus-uu-has-been-grabbed (list art))))))
1194
1195 ;; This function takes a list of articles and a function to apply to
1196 ;; each article grabbed.
1197 ;;
1198 ;; This function returns a list of files decoded if the grabbing and
1199 ;; the process-function has been successful and nil otherwise.
1200 (defun gnus-uu-grab-articles (articles process-function
1201                                        &optional sloppy limit no-errors)
1202   (let ((state 'first)
1203         (gnus-asynchronous nil)
1204         has-been-begin article result-file result-files process-state
1205         gnus-summary-display-article-function
1206         gnus-article-display-hook gnus-article-prepare-hook
1207         article-series files)
1208
1209     (while (and articles
1210                 (not (memq 'error process-state))
1211                 (or sloppy
1212                     (not (memq 'end process-state))))
1213
1214       (setq article (pop articles))
1215       (when (vectorp (gnus-summary-article-header article))
1216         (push article article-series)
1217
1218         (unless articles
1219           (if (eq state 'first)
1220               (setq state 'first-and-last)
1221             (setq state 'last)))
1222
1223         (let ((part (gnus-uu-part-number article)))
1224           (gnus-message 6 "Getting article %d%s..."
1225                         article (if (string= part "") "" (concat ", " part))))
1226         (gnus-summary-display-article article)
1227
1228         ;; Push the article to the processing function.
1229         (save-excursion
1230           (set-buffer gnus-original-article-buffer)
1231           (let ((buffer-read-only nil))
1232             (save-excursion
1233               (set-buffer gnus-summary-buffer)
1234               (setq process-state
1235                     (funcall process-function
1236                              gnus-original-article-buffer state)))))
1237
1238         (gnus-summary-remove-process-mark article)
1239
1240         ;; If this is the beginning of a decoded file, we push it
1241         ;; on to a list.
1242         (when (or (memq 'begin process-state)
1243                   (and (or (eq state 'first)
1244                            (eq state 'first-and-last))
1245                        (memq 'ok process-state)))
1246           (when has-been-begin
1247             ;; If there is a `result-file' here, that means that the
1248             ;; file was unsuccessfully decoded, so we delete it.
1249             (when (and result-file
1250                        (file-exists-p result-file)
1251                        (not gnus-uu-be-dangerous)
1252                        (or (eq gnus-uu-be-dangerous t)
1253                            (gnus-y-or-n-p
1254                             (format "Delete unsuccessfully decoded file %s"
1255                                     result-file))))
1256               (delete-file result-file)))
1257           (when (memq 'begin process-state)
1258             (setq result-file (car process-state)))
1259           (setq has-been-begin t))
1260
1261         ;; Check whether we have decoded one complete file.
1262         (when (memq 'end process-state)
1263           (setq article-series nil)
1264           (setq has-been-begin nil)
1265           (if (stringp result-file)
1266               (setq files (list result-file))
1267             (setq files result-file))
1268           (setq result-file (car files))
1269           (while files
1270             (push (list (cons 'name (pop files))
1271                         (cons 'article article))
1272                   result-files))
1273           ;; Allow user-defined functions to be run on this file.
1274           (when gnus-uu-grabbed-file-functions
1275             (let ((funcs gnus-uu-grabbed-file-functions))
1276               (unless (listp funcs)
1277                 (setq funcs (list funcs)))
1278               (while funcs
1279                 (funcall (pop funcs) result-file))))
1280           (setq result-file nil)
1281           ;; Check whether we have decoded enough articles.
1282           (and limit (= (length result-files) limit)
1283                (setq articles nil)))
1284
1285         ;; If this is the last article to be decoded, and
1286         ;; we still haven't reached the end, then we delete
1287         ;; the partially decoded file.
1288         (and (or (eq state 'last) (eq state 'first-and-last))
1289              (not (memq 'end process-state))
1290              result-file
1291              (file-exists-p result-file)
1292              (not gnus-uu-be-dangerous)
1293              (or (eq gnus-uu-be-dangerous t)
1294                  (gnus-y-or-n-p
1295                   (format "Delete incomplete file %s? " result-file)))
1296              (delete-file result-file))
1297
1298         ;; If this was a file of the wrong sort, then
1299         (when (and (or (memq 'wrong-type process-state)
1300                        (memq 'error process-state))
1301                    gnus-uu-unmark-articles-not-decoded)
1302           (gnus-summary-tick-article article t))
1303
1304         ;; Set the new series state.
1305         (if (and (not has-been-begin)
1306                  (not sloppy)
1307                  (or (memq 'end process-state)
1308                      (memq 'middle process-state)))
1309             (progn
1310               (setq process-state (list 'error))
1311               (gnus-message 2 "No begin part at the beginning")
1312               (sleep-for 2))
1313           (setq state 'middle)))
1314
1315       ;; When there are no result-files, then something must be wrong.
1316       (if result-files
1317           (message "")
1318         (cond
1319          ((not has-been-begin)
1320           (gnus-message 2 "Wrong type file"))
1321          ((memq 'error process-state)
1322           (gnus-message 2 "An error occurred during decoding"))
1323          ((not (or (memq 'ok process-state)
1324                    (memq 'end process-state)))
1325           (gnus-message 2 "End of articles reached before end of file")))
1326         ;; Make unsuccessfully decoded articles unread.
1327         (when gnus-uu-unmark-articles-not-decoded
1328           (while article-series
1329             (gnus-summary-tick-article (pop article-series) t)))))
1330
1331     result-files))
1332
1333 (defun gnus-uu-grab-view (file)
1334   "View FILE using the gnus-uu methods."
1335   (let ((action (gnus-uu-get-action file)))
1336     (gnus-execute-command
1337      (if (string-match "%" action)
1338          (format action file)
1339        (concat action " " file))
1340      (eq gnus-view-pseudos 'not-confirm))))
1341
1342 (defun gnus-uu-grab-move (file)
1343   "Move FILE to somewhere."
1344   (when gnus-uu-default-dir
1345     (let ((to-file (concat (file-name-as-directory gnus-uu-default-dir)
1346                            (file-name-nondirectory file))))
1347       (rename-file file to-file)
1348       (unless (file-exists-p file)
1349         (make-symbolic-link to-file file)))))
1350
1351 (defun gnus-uu-part-number (article)
1352   (let* ((header (gnus-summary-article-header article))
1353          (subject (and header (mail-header-subject header)))
1354          (part nil))
1355     (if subject
1356         (while (string-match "[0-9]+/[0-9]+\\|[0-9]+[ \t]+of[ \t]+[0-9]+"
1357                              subject)
1358           (setq part (match-string 0 subject))
1359           (setq subject (substring subject (match-end 0)))))
1360     (or part
1361         (while (string-match "\\([0-9]+\\)[^0-9]+\\([0-9]+\\)" subject)
1362           (setq part (match-string 0 subject))
1363           (setq subject (substring subject (match-end 0)))))
1364     (or part "")))
1365
1366 (defun gnus-uu-uudecode-sentinel (process event)
1367   (delete-process (get-process process)))
1368
1369 (defun gnus-uu-uustrip-article (process-buffer in-state)
1370   ;; Uudecodes a file asynchronously.
1371   (save-excursion
1372     (set-buffer process-buffer)
1373     (let ((state (list 'wrong-type))
1374           process-connection-type case-fold-search buffer-read-only
1375           files start-char)
1376       (goto-char (point-min))
1377
1378       ;; Deal with ^M at the end of the lines.
1379       (when gnus-uu-kill-carriage-return
1380         (save-excursion
1381           (while (search-forward "\r" nil t)
1382             (delete-backward-char 1))))
1383
1384       (while (or (re-search-forward gnus-uu-begin-string nil t)
1385                  (re-search-forward gnus-uu-body-line nil t))
1386         (setq state (list 'ok))
1387         ;; Ok, we are at the first uucoded line.
1388         (beginning-of-line)
1389         (setq start-char (point))
1390
1391         (if (not (looking-at gnus-uu-begin-string))
1392             (setq state (list 'middle))
1393           ;; This is the beginning of a uuencoded article.
1394           ;; We replace certain characters that could make things messy.
1395           (setq gnus-uu-file-name
1396                 (let ((nnheader-file-name-translation-alist
1397                        '((?/ . ?,) (? . ?_) (?* . ?_) (?$ . ?_))))
1398                   (nnheader-translate-file-chars (match-string 1))))
1399           (replace-match (concat "begin 644 " gnus-uu-file-name) t t)
1400
1401           ;; Remove any non gnus-uu-body-line right after start.
1402           (forward-line 1)
1403           (while (and (not (eobp))
1404                       (not (looking-at gnus-uu-body-line)))
1405             (gnus-delete-line))
1406
1407           ;; If a process is running, we kill it.
1408           (when (and gnus-uu-uudecode-process
1409                      (memq (process-status gnus-uu-uudecode-process)
1410                            '(run stop)))
1411             (delete-process gnus-uu-uudecode-process)
1412             (gnus-uu-unmark-list-of-grabbed t))
1413
1414           ;; Start a new uudecoding process.
1415           (let ((cdir default-directory))
1416             (unwind-protect
1417                 (progn
1418                   (cd gnus-uu-work-dir)
1419                   (setq gnus-uu-uudecode-process
1420                         (start-process
1421                          "*uudecode*"
1422                          (gnus-get-buffer-create gnus-uu-output-buffer-name)
1423                          shell-file-name shell-command-switch
1424                          (format "cd %s %s uudecode" gnus-uu-work-dir
1425                                  gnus-shell-command-separator))))
1426               (cd cdir)))
1427           (set-process-sentinel
1428            gnus-uu-uudecode-process 'gnus-uu-uudecode-sentinel)
1429           (setq state (list 'begin))
1430           (push (concat gnus-uu-work-dir gnus-uu-file-name) files))
1431
1432         ;; We look for the end of the thing to be decoded.
1433         (if (re-search-forward gnus-uu-end-string nil t)
1434             (push 'end state)
1435           (goto-char (point-max))
1436           (re-search-backward gnus-uu-body-line nil t))
1437
1438         (forward-line 1)
1439
1440         (when gnus-uu-uudecode-process
1441           (when (memq (process-status gnus-uu-uudecode-process) '(run stop))
1442             ;; Try to correct mishandled uucode.
1443             (when gnus-uu-correct-stripped-uucode
1444               (gnus-uu-check-correct-stripped-uucode start-char (point)))
1445             (gnus-run-hooks 'gnus-uu-pre-uudecode-hook)
1446
1447             ;; Send the text to the process.
1448             (condition-case nil
1449                 (process-send-region
1450                  gnus-uu-uudecode-process start-char (point))
1451               (error
1452                (progn
1453                  (delete-process gnus-uu-uudecode-process)
1454                  (gnus-message 2 "gnus-uu: Couldn't uudecode")
1455                  (setq state (list 'wrong-type)))))
1456
1457             (if (memq 'end state)
1458                 (progn
1459                   ;; Send an EOF, just in case.
1460                   (ignore-errors
1461                     (process-send-eof gnus-uu-uudecode-process))
1462                   (while (memq (process-status gnus-uu-uudecode-process)
1463                                '(open run))
1464                     (accept-process-output gnus-uu-uudecode-process 1)))
1465               (when (or (not gnus-uu-uudecode-process)
1466                         (not (memq (process-status gnus-uu-uudecode-process)
1467                                    '(run stop))))
1468                 (setq state (list 'wrong-type)))))))
1469
1470       (if (memq 'begin state)
1471           (cons (if (= (length files) 1) (car files) files) state)
1472         state))))
1473
1474 ;; This function is used by `gnus-uu-grab-articles' to treat
1475 ;; a shared article.
1476 (defun gnus-uu-unshar-article (process-buffer in-state)
1477   (let ((state (list 'ok))
1478         start-char)
1479     (save-excursion
1480       (set-buffer process-buffer)
1481       (goto-char (point-min))
1482       (if (not (re-search-forward gnus-uu-shar-begin-string nil t))
1483           (setq state (list 'wrong-type))
1484         (beginning-of-line)
1485         (setq start-char (point))
1486         (call-process-region
1487          start-char (point-max) shell-file-name nil
1488          (gnus-get-buffer-create gnus-uu-output-buffer-name) nil
1489          shell-command-switch
1490          (concat "cd " gnus-uu-work-dir " "
1491                  gnus-shell-command-separator  " sh"))))
1492     state))
1493
1494 ;; Returns the name of what the shar file is going to unpack.
1495 (defun gnus-uu-find-name-in-shar ()
1496   (let ((oldpoint (point))
1497         res)
1498     (goto-char (point-min))
1499     (when (re-search-forward gnus-uu-shar-name-marker nil t)
1500       (setq res (buffer-substring (match-beginning 1) (match-end 1))))
1501     (goto-char oldpoint)
1502     res))
1503
1504 ;; `gnus-uu-choose-action' chooses what action to perform given the name
1505 ;; and `gnus-uu-file-action-list'.  Returns either nil if no action is
1506 ;; found, or the name of the command to run if such a rule is found.
1507 (defun gnus-uu-choose-action (file-name file-action-list &optional no-ignore)
1508   (let ((action-list (copy-sequence file-action-list))
1509         (case-fold-search t)
1510         rule action)
1511     (and
1512      (unless no-ignore
1513        (and (not
1514              (and gnus-uu-ignore-files-by-name
1515                   (string-match gnus-uu-ignore-files-by-name file-name)))
1516             (not
1517              (and gnus-uu-ignore-files-by-type
1518                   (string-match gnus-uu-ignore-files-by-type
1519                                 (or (gnus-uu-choose-action
1520                                      file-name gnus-uu-ext-to-mime-list t)
1521                                     ""))))))
1522      (while (not (or (eq action-list ()) action))
1523        (setq rule (car action-list))
1524        (setq action-list (cdr action-list))
1525        (when (string-match (car rule) file-name)
1526          (setq action (cadr rule)))))
1527     action))
1528
1529 (defun gnus-uu-treat-archive (file-path)
1530   ;; Unpacks an archive.  Returns t if unpacking is successful.
1531   (let ((did-unpack t)
1532         action command dir)
1533     (setq action (gnus-uu-choose-action
1534                   file-path (append gnus-uu-user-archive-rules
1535                                     (if gnus-uu-ignore-default-archive-rules
1536                                         nil
1537                                       gnus-uu-default-archive-rules))))
1538
1539     (when (not action)
1540       (error "No unpackers for the file %s" file-path))
1541
1542     (string-match "/[^/]*$" file-path)
1543     (setq dir (substring file-path 0 (match-beginning 0)))
1544
1545     (when (member action gnus-uu-destructive-archivers)
1546       (copy-file file-path (concat file-path "~") t))
1547
1548     (setq command (format "cd %s ; %s" dir (gnus-uu-command action file-path)))
1549
1550     (save-excursion
1551       (set-buffer (gnus-get-buffer-create gnus-uu-output-buffer-name))
1552       (erase-buffer))
1553
1554     (gnus-message 5 "Unpacking: %s..." (gnus-uu-command action file-path))
1555
1556     (if (= 0 (call-process shell-file-name nil
1557                            (gnus-get-buffer-create gnus-uu-output-buffer-name)
1558                            nil shell-command-switch command))
1559         (message "")
1560       (gnus-message 2 "Error during unpacking of archive")
1561       (setq did-unpack nil))
1562
1563     (when (member action gnus-uu-destructive-archivers)
1564       (rename-file (concat file-path "~") file-path t))
1565
1566     did-unpack))
1567
1568 (defun gnus-uu-dir-files (dir)
1569   (let ((dirs (directory-files dir t "[^/][^\\.][^\\.]?$"))
1570         files file)
1571     (while dirs
1572       (if (file-directory-p (setq file (car dirs)))
1573           (setq files (append files (gnus-uu-dir-files file)))
1574         (push file files))
1575       (setq dirs (cdr dirs)))
1576     files))
1577
1578 (defun gnus-uu-unpack-files (files &optional ignore)
1579   ;; Go through FILES and look for files to unpack.
1580   (let* ((totfiles (gnus-uu-ls-r gnus-uu-work-dir))
1581          (ofiles files)
1582          file did-unpack)
1583     (while files
1584       (setq file (cdr (assq 'name (car files))))
1585       (when (and (not (member file ignore))
1586                  (equal (gnus-uu-get-action (file-name-nondirectory file))
1587                         "gnus-uu-archive"))
1588         (push file did-unpack)
1589         (unless (gnus-uu-treat-archive file)
1590           (gnus-message 2 "Error during unpacking of %s" file))
1591         (let* ((newfiles (gnus-uu-ls-r gnus-uu-work-dir))
1592                (nfiles newfiles))
1593           (while nfiles
1594             (unless (member (car nfiles) totfiles)
1595               (push (list (cons 'name (car nfiles))
1596                           (cons 'original file))
1597                     ofiles))
1598             (setq nfiles (cdr nfiles)))
1599           (setq totfiles newfiles)))
1600       (setq files (cdr files)))
1601     (if did-unpack
1602         (gnus-uu-unpack-files ofiles (append did-unpack ignore))
1603       ofiles)))
1604
1605 (defun gnus-uu-ls-r (dir)
1606   (let* ((files (gnus-uu-directory-files dir t))
1607          (ofiles files))
1608     (while files
1609       (when (file-directory-p (car files))
1610         (setq ofiles (delete (car files) ofiles))
1611         (setq ofiles (append ofiles (gnus-uu-ls-r (car files)))))
1612       (setq files (cdr files)))
1613     ofiles))
1614
1615 ;; Various stuff
1616
1617 (defun gnus-uu-directory-files (dir &optional full)
1618   (let (files out file)
1619     (setq files (directory-files dir full))
1620     (while files
1621       (setq file (car files))
1622       (setq files (cdr files))
1623       (unless (member (file-name-nondirectory file) '("." ".."))
1624         (push file out)))
1625     (setq out (nreverse out))
1626     out))
1627
1628 (defun gnus-uu-check-correct-stripped-uucode (start end)
1629   (save-excursion
1630     (let (found beg length)
1631       (if (not gnus-uu-correct-stripped-uucode)
1632           ()
1633         (goto-char start)
1634
1635         (if (re-search-forward " \\|`" end t)
1636             (progn
1637               (goto-char start)
1638               (while (not (eobp))
1639                 (progn
1640                   (when (looking-at "\n")
1641                     (replace-match ""))
1642                   (forward-line 1))))
1643
1644           (while (not (eobp))
1645             (if (looking-at (concat gnus-uu-begin-string "\\|"
1646                                     gnus-uu-end-string))
1647                 ()
1648               (when (not found)
1649                 (beginning-of-line)
1650                 (setq beg (point))
1651                 (end-of-line)
1652                 (setq length (- (point) beg)))
1653               (setq found t)
1654               (beginning-of-line)
1655               (setq beg (point))
1656               (end-of-line)
1657               (when (not (= length (- (point) beg)))
1658                 (insert (make-string (- length (- (point) beg)) ? ))))
1659             (forward-line 1)))))))
1660
1661 (defvar gnus-uu-tmp-alist nil)
1662
1663 (defun gnus-uu-initialize (&optional scan)
1664   (let (entry)
1665     (if (and (not scan)
1666              (when (setq entry (assoc gnus-newsgroup-name gnus-uu-tmp-alist))
1667                (if (file-exists-p (cdr entry))
1668                    (setq gnus-uu-work-dir (cdr entry))
1669                  (setq gnus-uu-tmp-alist (delq entry gnus-uu-tmp-alist))
1670                  nil)))
1671         t
1672       (setq gnus-uu-tmp-dir (file-name-as-directory
1673                              (expand-file-name gnus-uu-tmp-dir)))
1674       (if (not (file-directory-p gnus-uu-tmp-dir))
1675           (error "Temp directory %s doesn't exist" gnus-uu-tmp-dir)
1676         (when (not (file-writable-p gnus-uu-tmp-dir))
1677           (error "Temp directory %s can't be written to"
1678                  gnus-uu-tmp-dir)))
1679
1680       (setq gnus-uu-work-dir
1681             (make-temp-file (concat gnus-uu-tmp-dir "gnus") t))
1682       (set-file-modes gnus-uu-work-dir 448)
1683       (setq gnus-uu-work-dir (file-name-as-directory gnus-uu-work-dir))
1684       (push (cons gnus-newsgroup-name gnus-uu-work-dir)
1685             gnus-uu-tmp-alist))))
1686
1687
1688 ;; Kills the temporary uu buffers, kills any processes, etc.
1689 (defun gnus-uu-clean-up ()
1690   (let (buf)
1691     (and gnus-uu-uudecode-process
1692          (memq (process-status (or gnus-uu-uudecode-process "nevair"))
1693                '(stop run))
1694          (delete-process gnus-uu-uudecode-process))
1695     (when (setq buf (get-buffer gnus-uu-output-buffer-name))
1696       (kill-buffer buf))))
1697
1698 (defun gnus-quote-arg-for-sh-or-csh (arg)
1699   (let ((pos 0) new-pos accum)
1700     ;; *** bug: we don't handle newline characters properly
1701     (while (setq new-pos (string-match "[;!`\"$\\& \t{}]" arg pos))
1702       (push (substring arg pos new-pos) accum)
1703       (push "\\" accum)
1704       (push (list (aref arg new-pos)) accum)
1705       (setq pos (1+ new-pos)))
1706     (if (= pos 0)
1707         arg
1708       (apply 'concat (nconc (nreverse accum) (list (substring arg pos)))))))
1709
1710 ;; Inputs an action and a filename and returns a full command, making sure
1711 ;; that the filename will be treated as a single argument when the shell
1712 ;; executes the command.
1713 (defun gnus-uu-command (action file)
1714   (let ((quoted-file (gnus-quote-arg-for-sh-or-csh file)))
1715     (if (string-match "%s" action)
1716         (format action quoted-file)
1717       (concat action " " quoted-file))))
1718
1719 (defun gnus-uu-delete-work-dir (&optional dir)
1720   "Delete recursively all files and directories under `gnus-uu-work-dir'."
1721   (if dir
1722       (gnus-message 7 "Deleting directory %s..." dir)
1723     (setq dir gnus-uu-work-dir))
1724   (when (and dir
1725              (file-exists-p dir))
1726     (let ((files (directory-files dir t nil t))
1727           file)
1728       (while (setq file (pop files))
1729         (unless (member (file-name-nondirectory file) '("." ".."))
1730           (if (file-directory-p file)
1731               (gnus-uu-delete-work-dir file)
1732             (gnus-message 9 "Deleting file %s..." file)
1733             (delete-file file))))
1734       (delete-directory dir)))
1735   (gnus-message 7 ""))
1736
1737 ;; Initializing
1738
1739 (add-hook 'gnus-exit-group-hook 'gnus-uu-clean-up)
1740 (add-hook 'gnus-exit-group-hook 'gnus-uu-delete-work-dir)
1741
1742 \f
1743
1744 ;;;
1745 ;;; uuencoded posting
1746 ;;;
1747
1748 ;; Any function that is to be used as and encoding method will take two
1749 ;; parameters: PATH-NAME and FILE-NAME.  (E.g. "/home/gaga/spiral.jpg"
1750 ;; and "spiral.jpg", respectively.) The function should return nil if
1751 ;; the encoding wasn't successful.
1752 (defcustom gnus-uu-post-encode-method 'gnus-uu-post-encode-uuencode
1753   "Function used for encoding binary files.
1754 There are three functions supplied with gnus-uu for encoding files:
1755 `gnus-uu-post-encode-uuencode', which does straight uuencoding;
1756 `gnus-uu-post-encode-mime', which encodes with base64 and adds MIME
1757 headers; and `gnus-uu-post-encode-mime-uuencode', which encodes with
1758 uuencode and adds MIME headers."
1759   :group 'gnus-extract-post
1760   :type '(radio (function-item gnus-uu-post-encode-uuencode)
1761                 (function-item gnus-uu-post-encode-mime)
1762                 (function-item gnus-uu-post-encode-mime-uuencode)
1763                 (function :tag "Other")))
1764
1765 (defcustom gnus-uu-post-include-before-composing nil
1766   "Non-nil means that gnus-uu will ask for a file to encode before you compose the article.
1767 If this variable is t, you can either include an encoded file with
1768 \\[gnus-uu-post-insert-binary-in-article] or have one included for you when you post the article."
1769   :group 'gnus-extract-post
1770   :type 'boolean)
1771
1772 (defcustom gnus-uu-post-length 990
1773   "Maximum length of an article.
1774 The encoded file will be split into how many articles it takes to
1775 post the entire file."
1776   :group 'gnus-extract-post
1777   :type 'integer)
1778
1779 (defcustom gnus-uu-post-threaded nil
1780   "Non-nil means that gnus-uu will post the encoded file in a thread.
1781 This may not be smart, as no other decoder I have seen are able to
1782 follow threads when collecting uuencoded articles.  (Well, I have seen
1783 one package that does that - gnus-uu, but somehow, I don't think that
1784 counts...)  The default is nil."
1785   :group 'gnus-extract-post
1786   :type 'boolean)
1787
1788 (defcustom gnus-uu-post-separate-description t
1789   "Non-nil means that the description will be posted in a separate article.
1790 The first article will typically be numbered (0/x).  If this variable
1791 is nil, the description the user enters will be included at the
1792 beginning of the first article, which will be numbered (1/x).  Default
1793 is t."
1794   :group 'gnus-extract-post
1795   :type 'boolean)
1796
1797 (defvar gnus-uu-post-binary-separator "--binary follows this line--")
1798 (defvar gnus-uu-post-message-id nil)
1799 (defvar gnus-uu-post-inserted-file-name nil)
1800 (defvar gnus-uu-winconf-post-news nil)
1801
1802 (defun gnus-uu-post-news ()
1803   "Compose an article and post an encoded file."
1804   (interactive)
1805   (setq gnus-uu-post-inserted-file-name nil)
1806   (setq gnus-uu-winconf-post-news (current-window-configuration))
1807
1808   (gnus-summary-post-news)
1809
1810   (use-local-map (copy-keymap (current-local-map)))
1811   (local-set-key "\C-c\C-c" 'gnus-summary-edit-article-done)
1812   (local-set-key "\C-c\C-c" 'gnus-uu-post-news-inews)
1813   (local-set-key "\C-c\C-s" 'gnus-uu-post-news-inews)
1814   (local-set-key "\C-c\C-i" 'gnus-uu-post-insert-binary-in-article)
1815
1816   (when gnus-uu-post-include-before-composing
1817     (save-excursion (setq gnus-uu-post-inserted-file-name
1818                           (gnus-uu-post-insert-binary)))))
1819
1820 (defun gnus-uu-post-insert-binary-in-article ()
1821   "Inserts an encoded file in the buffer.
1822 The user will be asked for a file name."
1823   (interactive)
1824   (save-excursion
1825     (setq gnus-uu-post-inserted-file-name (gnus-uu-post-insert-binary))))
1826
1827 ;; Encodes with uuencode and substitutes all spaces with backticks.
1828 (defun gnus-uu-post-encode-uuencode (path file-name)
1829   (when (gnus-uu-post-encode-file "uuencode" path file-name)
1830     (goto-char (point-min))
1831     (forward-line 1)
1832     (while (re-search-forward " " nil t)
1833       (replace-match "`"))
1834     t))
1835
1836 ;; Encodes with uuencode and adds MIME headers.
1837 (defun gnus-uu-post-encode-mime-uuencode (path file-name)
1838   (when (gnus-uu-post-encode-uuencode path file-name)
1839     (gnus-uu-post-make-mime file-name "x-uue")
1840     t))
1841
1842 ;; Encodes with base64 and adds MIME headers
1843 (defun gnus-uu-post-encode-mime (path file-name)
1844   (when (zerop (call-process shell-file-name nil t nil shell-command-switch
1845                              (format "%s %s -o %s" "mmencode" path file-name)))
1846     (gnus-uu-post-make-mime file-name "base64")
1847     t))
1848
1849 ;; Adds MIME headers.
1850 (defun gnus-uu-post-make-mime (file-name encoding)
1851   (goto-char (point-min))
1852   (insert (format "Content-Type: %s; name=\"%s\"\n"
1853                   (gnus-uu-choose-action file-name gnus-uu-ext-to-mime-list)
1854                   file-name))
1855   (insert (format "Content-Transfer-Encoding: %s\n\n" encoding))
1856   (save-restriction
1857     (set-buffer gnus-message-buffer)
1858     (goto-char (point-min))
1859     (re-search-forward (concat "^" (regexp-quote mail-header-separator) "$"))
1860     (forward-line -1)
1861     (narrow-to-region 1 (point))
1862     (unless (mail-fetch-field "mime-version")
1863       (widen)
1864       (insert "MIME-Version: 1.0\n"))
1865     (widen)))
1866
1867 ;; Encodes a file PATH with COMMAND, leaving the result in the
1868 ;; current buffer.
1869 (defun gnus-uu-post-encode-file (command path file-name)
1870   (= 0 (call-process shell-file-name nil t nil shell-command-switch
1871                      (format "%s %s %s" command path file-name))))
1872
1873 (defun gnus-uu-post-news-inews ()
1874   "Posts the composed news article and encoded file.
1875 If no file has been included, the user will be asked for a file."
1876   (interactive)
1877
1878   (let (file-name)
1879
1880     (if gnus-uu-post-inserted-file-name
1881         (setq file-name gnus-uu-post-inserted-file-name)
1882       (setq file-name (gnus-uu-post-insert-binary)))
1883
1884     (gnus-uu-post-encoded file-name gnus-uu-post-threaded))
1885   (setq gnus-uu-post-inserted-file-name nil)
1886   (when gnus-uu-winconf-post-news
1887     (set-window-configuration gnus-uu-winconf-post-news)))
1888
1889 ;; Asks for a file to encode, encodes it and inserts the result in
1890 ;; the current buffer.  Returns the file name the user gave.
1891 (defun gnus-uu-post-insert-binary ()
1892   (let ((uuencode-buffer-name "*uuencode buffer*")
1893         file-path uubuf file-name)
1894
1895     (setq file-path (read-file-name
1896                      "What file do you want to encode? "))
1897     (when (not (file-exists-p file-path))
1898       (error "%s: No such file" file-path))
1899
1900     (goto-char (point-max))
1901     (insert (format "\n%s\n" gnus-uu-post-binary-separator))
1902
1903     ;; #### Unix-specific?
1904     (when (string-match "^~/" file-path)
1905       (setq file-path (concat "$HOME" (substring file-path 1))))
1906     ;; #### Unix-specific?
1907     (if (string-match "/[^/]*$" file-path)
1908         (setq file-name (substring file-path (1+ (match-beginning 0))))
1909       (setq file-name file-path))
1910
1911     (unwind-protect
1912         (if (save-excursion
1913               (set-buffer (setq uubuf
1914                                 (gnus-get-buffer-create uuencode-buffer-name)))
1915               (erase-buffer)
1916               (funcall gnus-uu-post-encode-method file-path file-name))
1917             (insert-buffer-substring uubuf)
1918           (error "Encoding unsuccessful"))
1919       (kill-buffer uubuf))
1920     file-name))
1921
1922 ;; Posts the article and all of the encoded file.
1923 (defun gnus-uu-post-encoded (file-name &optional threaded)
1924   (let ((send-buffer-name "*uuencode send buffer*")
1925         (encoded-buffer-name "*encoded buffer*")
1926         (top-string "[ cut here %s (%s %d/%d) %s gnus-uu ]")
1927         (separator (concat mail-header-separator "\n\n"))
1928         uubuf length parts header i end beg
1929         beg-line minlen post-buf whole-len beg-binary end-binary)
1930
1931     (setq post-buf (current-buffer))
1932
1933     (goto-char (point-min))
1934     (when (not (re-search-forward
1935                 (if gnus-uu-post-separate-description
1936                     (concat "^" (regexp-quote gnus-uu-post-binary-separator)
1937                             "$")
1938                   (concat "^" (regexp-quote mail-header-separator) "$"))
1939                 nil t))
1940       (error "Internal error: No binary/header separator"))
1941     (beginning-of-line)
1942     (forward-line 1)
1943     (setq beg-binary (point))
1944     (setq end-binary (point-max))
1945
1946     (save-excursion
1947       (set-buffer (setq uubuf (gnus-get-buffer-create encoded-buffer-name)))
1948       (erase-buffer)
1949       (insert-buffer-substring post-buf beg-binary end-binary)
1950       (goto-char (point-min))
1951       (setq length (count-lines 1 (point-max)))
1952       (setq parts (/ length gnus-uu-post-length))
1953       (unless (< (% length gnus-uu-post-length) 4)
1954         (incf parts)))
1955
1956     (when gnus-uu-post-separate-description
1957       (forward-line -1))
1958     (delete-region (point) (point-max))
1959
1960     (goto-char (point-min))
1961     (re-search-forward
1962      (concat "^" (regexp-quote mail-header-separator) "$") nil t)
1963     (beginning-of-line)
1964     (setq header (buffer-substring 1 (point)))
1965
1966     (goto-char (point-min))
1967     (when gnus-uu-post-separate-description
1968       (when (re-search-forward "^Subject: " nil t)
1969         (end-of-line)
1970         (insert (format " (0/%d)" parts)))
1971       (save-excursion
1972         (message-send))
1973       (setq gnus-uu-post-message-id (message-fetch-field "message-id")))
1974
1975     (save-excursion
1976       (setq i 1)
1977       (setq beg 1)
1978       (while (not (> i parts))
1979         (set-buffer (gnus-get-buffer-create send-buffer-name))
1980         (erase-buffer)
1981         (insert header)
1982         (when (and threaded gnus-uu-post-message-id)
1983           (insert "References: " gnus-uu-post-message-id "\n"))
1984         (insert separator)
1985         (setq whole-len
1986               (- 62 (length (format top-string "" file-name i parts ""))))
1987         (when (> 1 (setq minlen (/ whole-len 2)))
1988           (setq minlen 1))
1989         (setq
1990          beg-line
1991          (format top-string
1992                  (make-string minlen ?-)
1993                  file-name i parts
1994                  (make-string
1995                   (if (= 0 (% whole-len 2)) (1- minlen) minlen) ?-)))
1996
1997         (goto-char (point-min))
1998         (when (re-search-forward "^Subject: " nil t)
1999           (end-of-line)
2000           (insert (format " (%d/%d)" i parts)))
2001
2002         (goto-char (point-max))
2003         (save-excursion
2004           (set-buffer uubuf)
2005           (goto-char beg)
2006           (if (= i parts)
2007               (goto-char (point-max))
2008             (forward-line gnus-uu-post-length))
2009           (when (and (= (1+ i) parts) (< (count-lines (point) (point-max)) 4))
2010             (forward-line -4))
2011           (setq end (point)))
2012         (insert-buffer-substring uubuf beg end)
2013         (insert beg-line "\n")
2014         (setq beg end)
2015         (incf i)
2016         (goto-char (point-min))
2017         (re-search-forward
2018          (concat "^" (regexp-quote mail-header-separator) "$") nil t)
2019         (beginning-of-line)
2020         (forward-line 2)
2021         (when (re-search-forward
2022                (concat "^" (regexp-quote gnus-uu-post-binary-separator) "$")
2023                nil t)
2024           (replace-match "")
2025           (forward-line 1))
2026         (insert beg-line)
2027         (insert "\n")
2028         (let (message-sent-message-via)
2029           (save-excursion
2030             (message-send))
2031           (setq gnus-uu-post-message-id
2032                 (concat (message-fetch-field "references") " "
2033                         (message-fetch-field "message-id"))))))
2034
2035     (gnus-kill-buffer send-buffer-name)
2036     (gnus-kill-buffer encoded-buffer-name)
2037
2038     (when (not gnus-uu-post-separate-description)
2039       (set-buffer-modified-p nil)
2040       (when (fboundp 'bury-buffer)
2041         (bury-buffer)))))
2042
2043 (provide 'gnus-uu)
2044
2045 ;; gnus-uu.el ends here