(te-create-terminfo): Use make-temp-file
[bpt/emacs.git] / lisp / arc-mode.el
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1;;; arc-mode.el --- simple editing of archives
2
380683ed 3;; Copyright (C) 1995, 1997, 1998 Free Software Foundation, Inc.
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0acdb863 5;; Author: Morten Welinder <terra@diku.dk>
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6;; Keywords: archives msdog editing major-mode
7;; Favourite-brand-of-beer: None, I hate beer.
8
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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.
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25
26;;; Commentary:
b578f267 27
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28;; NAMING: "arc" is short for "archive" and does not refer specifically
29;; to files whose name end in ".arc"
30;;
31;; This code does not decode any files internally, although it does
32;; understand the directory level of the archives. For this reason,
33;; you should expect this code to need more fiddling than tar-mode.el
34;; (although it at present has fewer bugs :-) In particular, I have
35;; not tested this under Ms-Dog myself.
36;; -------------------------------------
37;; INTERACTION: arc-mode.el should play together with
38;;
39;; * ange-ftp.el: Remote archives (i.e., ones that ange-ftp has brought
40;; to you) are handled by doing all updates on a local
41;; copy. When you make changes to a remote file the
42;; changes will first take effect when the archive buffer
43;; is saved. You will be warned about this.
44;;
45;; * dos-fns.el: (Part of Emacs 19). You get automatic ^M^J <--> ^J
46;; conversion.
47;;
48;; arc-mode.el does not work well with crypt++.el; for the archives as
49;; such this could be fixed (but wouldn't be useful) by declaring such
50;; archives to be "remote". For the members this is a general Emacs
51;; problem that 19.29's file formats may fix.
52;; -------------------------------------
53;; ARCHIVE TYPES: Currently only the archives below are handled, but the
54;; structure for handling just about anything is in place.
55;;
56;; Arc Lzh Zip Zoo
57;; --------------------------------
58;; View listing Intern Intern Intern Intern
59;; Extract member Y Y Y Y
60;; Save changed member Y Y Y Y
61;; Add new member N N N N
62;; Delete member Y Y Y Y
63;; Rename member Y Y N N
64;; Chmod - Y Y -
65;; Chown - Y - -
66;; Chgrp - Y - -
67;;
68;; Special thanks to Bill Brodie <wbrodie@panix.com> for very useful tips
69;; on the first released version of this package.
70;;
71;; This code is partly based on tar-mode.el from Emacs.
72;; -------------------------------------
73;; ARCHIVE STRUCTURES:
74;; (This is mostly for myself.)
75;;
76;; ARC A series of (header,file). No interactions among members.
77;;
78;; LZH A series of (header,file). Headers are checksummed. No
79;; interaction among members.
80;;
81;; ZIP A series of (lheader,fil) followed by a "central directory"
82;; which is a series of (cheader) followed by an end-of-
83;; central-dir record possibly followed by junk. The e-o-c-d
84;; links to c-d. cheaders link to lheaders which are basically
85;; cut-down versions of the cheaders.
86;;
87;; ZOO An archive header followed by a series of (header,file).
88;; Each member header points to the next. The archive is
89;; terminated by a bogus header with a zero next link.
90;; -------------------------------------
246e8695 91;; HOOKS: `foo' means one of the supported archive types.
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92;;
93;; archive-mode-hook
94;; archive-foo-mode-hook
95;; archive-extract-hooks
96
97;;; Code:
98
99;; -------------------------------------------------------------------------
100;; Section: Configuration.
101
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102(defgroup archive nil
103 "Simple editing of archives."
104 :group 'data)
665211a3 105
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106(defgroup archive-arc nil
107 "ARC-specific options to archive."
108 :group 'archive)
109
110(defgroup archive-lzh nil
111 "LZH-specific options to archive."
112 :group 'archive)
113
114(defgroup archive-zip nil
115 "ZIP-specific options to archive."
116 :group 'archive)
117
118(defgroup archive-zoo nil
119 "ZOO-specific options to archive."
120 :group 'archive)
121
c38eb0a8 122(defcustom archive-tmpdir
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123 (make-temp-name
124 (expand-file-name (if (eq system-type 'ms-dos) "ar" "archive.tmp")
0adf5079 125 temporary-file-directory))
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126 "*Directory for temporary files made by arc-mode.el"
127 :type 'directory
128 :group 'archive)
665211a3 129
c38eb0a8 130(defcustom archive-remote-regexp "^/[^/:]*[^/:.]:"
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131 "*Regexp recognizing archive files names that are not local.
132A non-local file is one whose file name is not proper outside Emacs.
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133A local copy of the archive will be used when updating."
134 :type 'regexp
135 :group 'archive)
136
137(defcustom archive-extract-hooks nil
138 "*Hooks to run when an archive member has been extracted."
139 :type 'hook
140 :group 'archive)
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141;; ------------------------------
142;; Arc archive configuration
143
144;; We always go via a local file since there seems to be no reliable way
145;; to extract to stdout without junk getting added.
c38eb0a8 146(defcustom archive-arc-extract
665211a3 147 '("arc" "x")
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148 "*Program and its options to run in order to extract an arc file member.
149Extraction should happen to the current directory. Archive and member
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150name will be added."
151 :type '(list (string :tag "Program")
152 (repeat :tag "Options"
153 :inline t
154 (string :format "%v")))
155 :group 'archive-arc)
156
157(defcustom archive-arc-expunge
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158 '("arc" "d")
159 "*Program and its options to run in order to delete arc file members.
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160Archive and member names will be added."
161 :type '(list (string :tag "Program")
162 (repeat :tag "Options"
163 :inline t
164 (string :format "%v")))
165 :group 'archive-arc)
166
167(defcustom archive-arc-write-file-member
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168 '("arc" "u")
169 "*Program and its options to run in order to update an arc file member.
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170Archive and member name will be added."
171 :type '(list (string :tag "Program")
172 (repeat :tag "Options"
173 :inline t
174 (string :format "%v")))
175 :group 'archive-arc)
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176;; ------------------------------
177;; Lzh archive configuration
178
c38eb0a8 179(defcustom archive-lzh-extract
665211a3 180 '("lha" "pq")
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181 "*Program and its options to run in order to extract an lzh file member.
182Extraction should happen to standard output. Archive and member name will
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183be added."
184 :type '(list (string :tag "Program")
185 (repeat :tag "Options"
186 :inline t
187 (string :format "%v")))
188 :group 'archive-lzh)
189
190(defcustom archive-lzh-expunge
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191 '("lha" "d")
192 "*Program and its options to run in order to delete lzh file members.
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193Archive and member names will be added."
194 :type '(list (string :tag "Program")
195 (repeat :tag "Options"
196 :inline t
197 (string :format "%v")))
198 :group 'archive-lzh)
199
200(defcustom archive-lzh-write-file-member
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201 '("lha" "a")
202 "*Program and its options to run in order to update an lzh file member.
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203Archive and member name will be added."
204 :type '(list (string :tag "Program")
205 (repeat :tag "Options"
206 :inline t
207 (string :format "%v")))
208 :group 'archive-lzh)
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209;; ------------------------------
210;; Zip archive configuration
211
c38eb0a8 212(defcustom archive-zip-use-pkzip (memq system-type '(ms-dos windows-nt))
eeba65ed 213 "*If non-nil then pkzip option are used instead of zip options.
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214Only set to true for msdog systems!"
215 :type 'boolean
216 :group 'archive-zip)
665211a3 217
c38eb0a8 218(defcustom archive-zip-extract
b48fa570 219 (if archive-zip-use-pkzip '("pkunzip" "-e" "-o-") '("unzip" "-qq" "-c"))
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220 "*Program and its options to run in order to extract a zip file member.
221Extraction should happen to standard output. Archive and member name will
222be added. If `archive-zip-use-pkzip' is non-nil then this program is
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223expected to extract to a file junking the directory part of the name."
224 :type '(list (string :tag "Program")
225 (repeat :tag "Options"
226 :inline t
227 (string :format "%v")))
228 :group 'archive-zip)
665211a3 229
e946e18c 230;; For several reasons the latter behaviour is not desirable in general.
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231;; (1) It uses more disk space. (2) Error checking is worse or non-
232;; existent. (3) It tends to do funny things with other systems' file
233;; names.
234
c38eb0a8 235(defcustom archive-zip-expunge
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236 (if archive-zip-use-pkzip '("pkzip" "-d") '("zip" "-d" "-q"))
237 "*Program and its options to run in order to delete zip file members.
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238Archive and member names will be added."
239 :type '(list (string :tag "Program")
240 (repeat :tag "Options"
241 :inline t
242 (string :format "%v")))
243 :group 'archive-zip)
244
245(defcustom archive-zip-update
f7094f49 246 (if archive-zip-use-pkzip '("pkzip" "-u" "-P") '("zip" "-q"))
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247 "*Program and its options to run in order to update a zip file member.
248Options should ensure that specified directory will be put into the zip
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249file. Archive and member name will be added."
250 :type '(list (string :tag "Program")
251 (repeat :tag "Options"
252 :inline t
253 (string :format "%v")))
254 :group 'archive-zip)
255
256(defcustom archive-zip-update-case
665211a3 257 (if archive-zip-use-pkzip archive-zip-update '("zip" "-q" "-k"))
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258 "*Program and its options to run in order to update a case fiddled zip member.
259Options should ensure that specified directory will be put into the zip file.
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260Archive and member name will be added."
261 :type '(list (string :tag "Program")
262 (repeat :tag "Options"
263 :inline t
264 (string :format "%v")))
265 :group 'archive-zip)
266
267(defcustom archive-zip-case-fiddle t
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268 "*If non-nil then zip file members may be down-cased.
269This case fiddling will only happen for members created by a system
270that uses caseless file names."
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271 :type 'boolean
272 :group 'archive-zip)
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273;; ------------------------------
274;; Zoo archive configuration
275
c38eb0a8 276(defcustom archive-zoo-extract
665211a3 277 '("zoo" "xpq")
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278 "*Program and its options to run in order to extract a zoo file member.
279Extraction should happen to standard output. Archive and member name will
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280be added."
281 :type '(list (string :tag "Program")
282 (repeat :tag "Options"
283 :inline t
284 (string :format "%v")))
285 :group 'archive-zoo)
286
287(defcustom archive-zoo-expunge
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288 '("zoo" "DqPP")
289 "*Program and its options to run in order to delete zoo file members.
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290Archive and member names will be added."
291 :type '(list (string :tag "Program")
292 (repeat :tag "Options"
293 :inline t
294 (string :format "%v")))
295 :group 'archive-zoo)
296
297(defcustom archive-zoo-write-file-member
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298 '("zoo" "a")
299 "*Program and its options to run in order to update a zoo file member.
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300Archive and member name will be added."
301 :type '(list (string :tag "Program")
302 (repeat :tag "Options"
303 :inline t
304 (string :format "%v")))
305 :group 'archive-zoo)
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306;; -------------------------------------------------------------------------
307;; Section: Variables
308
309(defvar archive-subtype nil "*Symbol describing archive type.")
310(defvar archive-file-list-start nil "*Position of first contents line.")
311(defvar archive-file-list-end nil "*Position just after last contents line.")
312(defvar archive-proper-file-start nil "*Position of real archive's start.")
313(defvar archive-read-only nil "*Non-nil if the archive is read-only on disk.")
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314(defvar archive-local-name nil "*Name of local copy of remote archive.")
315(defvar archive-mode-map nil "*Local keymap for archive mode listings.")
316(defvar archive-file-name-indent nil "*Column where file names start.")
317
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318(defvar archive-remote nil "*Non-nil if the archive is outside file system.")
319(make-variable-buffer-local 'archive-remote)
320(put 'archive-remote 'permanent-local t)
321
322(defvar archive-member-coding-system nil "Coding-system of archive member.")
323(make-variable-buffer-local 'archive-member-coding-system)
324
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325(defvar archive-alternate-display nil
326 "*Non-nil when alternate information is shown.")
327(make-variable-buffer-local 'archive-alternate-display)
328(put 'archive-alternate-display 'permanent-local t)
329
330(defvar archive-superior-buffer nil "*In archive members, points to archive.")
331(put 'archive-superior-buffer 'permanent-local t)
332
333(defvar archive-subfile-mode nil "*Non-nil in archive member buffers.")
334(make-variable-buffer-local 'archive-subfile-mode)
335(put 'archive-subfile-mode 'permanent-local t)
336
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337(defvar archive-files nil
338 "Vector of file descriptors.
339Each descriptor is a vector of the form
340 [EXT-FILE-NAME INT-FILE-NAME CASE-FIDDLED MODE ...]")
665211a3 341(make-variable-buffer-local 'archive-files)
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342
343(defvar archive-lemacs
344 (string-match "\\(Lucid\\|Xemacs\\)" emacs-version)
345 "*Non-nil when running under under Lucid Emacs or Xemacs.")
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346;; -------------------------------------------------------------------------
347;; Section: Support functions.
348
349(defsubst archive-name (suffix)
350 (intern (concat "archive-" (symbol-name archive-subtype) "-" suffix)))
351
352(defun archive-l-e (str &optional len)
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353 "Convert little endian string/vector to integer.
354Alternatively, first argument may be a buffer position in the current buffer
355in which case a second argument, length, should be supplied."
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356 (if (stringp str)
357 (setq len (length str))
358 (setq str (buffer-substring str (+ str len))))
359 (let ((result 0)
360 (i 0))
361 (while (< i len)
362 (setq i (1+ i)
363 result (+ (ash result 8) (aref str (- len i)))))
364 result))
365
366(defun archive-int-to-mode (mode)
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367 "Turn an integer like 0700 (i.e., 448) into a mode string like -rwx------."
368 ;; FIXME: merge with tar-grind-file-mode.
369 (string
370 (if (zerop (logand 8192 mode))
371 (if (zerop (logand 16384 mode)) ?- ?d)
372 ?c) ; completeness
373 (if (zerop (logand 256 mode)) ?- ?r)
374 (if (zerop (logand 128 mode)) ?- ?w)
375 (if (zerop (logand 64 mode))
376 (if (zerop (logand 1024 mode)) ?- ?S)
377 (if (zerop (logand 1024 mode)) ?x ?s))
378 (if (zerop (logand 32 mode)) ?- ?r)
379 (if (zerop (logand 16 mode)) ?- ?w)
380 (if (zerop (logand 8 mode))
381 (if (zerop (logand 2048 mode)) ?- ?S)
382 (if (zerop (logand 2048 mode)) ?x ?s))
383 (if (zerop (logand 4 mode)) ?- ?r)
384 (if (zerop (logand 2 mode)) ?- ?w)
385 (if (zerop (logand 1 mode)) ?- ?x)))
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386
387(defun archive-calc-mode (oldmode newmode &optional error)
eeba65ed 388 "From the integer OLDMODE and the string NEWMODE calculate a new file mode.
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389NEWMODE may be an octal number including a leading zero in which case it
390will become the new mode.\n
391NEWMODE may also be a relative specification like \"og-rwx\" in which case
392OLDMODE will be modified accordingly just like chmod(2) would have done.\n
393If optional third argument ERROR is non-nil an error will be signaled if
394the mode is invalid. If ERROR is nil then nil will be returned."
395 (cond ((string-match "^0[0-7]*$" newmode)
396 (let ((result 0)
397 (len (length newmode))
398 (i 1))
399 (while (< i len)
400 (setq result (+ (lsh result 3) (aref newmode i) (- ?0))
401 i (1+ i)))
402 (logior (logand oldmode 65024) result)))
403 ((string-match "^\\([agou]+\\)\\([---+=]\\)\\([rwxst]+\\)$" newmode)
404 (let ((who 0)
405 (result oldmode)
406 (op (aref newmode (match-beginning 2)))
407 (bits 0)
408 (i (match-beginning 3)))
409 (while (< i (match-end 3))
410 (let ((rwx (aref newmode i)))
411 (setq bits (logior bits (cond ((= rwx ?r) 292)
412 ((= rwx ?w) 146)
413 ((= rwx ?x) 73)
414 ((= rwx ?s) 3072)
415 ((= rwx ?t) 512)))
416 i (1+ i))))
417 (while (< who (match-end 1))
418 (let* ((whoc (aref newmode who))
419 (whomask (cond ((= whoc ?a) 4095)
420 ((= whoc ?u) 1472)
421 ((= whoc ?g) 2104)
422 ((= whoc ?o) 7))))
423 (if (= op ?=)
424 (setq result (logand result (lognot whomask))))
425 (if (= op ?-)
426 (setq result (logand result (lognot (logand whomask bits))))
427 (setq result (logior result (logand whomask bits)))))
428 (setq who (1+ who)))
429 result))
430 (t
431 (if error
432 (error "Invalid mode specification: %s" newmode)))))
433
434(defun archive-dosdate (date)
435 "Stringify dos packed DATE record."
436 (let ((year (+ 1980 (logand (ash date -9) 127)))
437 (month (logand (ash date -5) 15))
438 (day (logand date 31)))
439 (if (or (> month 12) (< month 1))
440 ""
441 (format "%2d-%s-%d"
442 day
443 (aref ["Jan" "Feb" "Mar" "Apr" "May" "Jun"
444 "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"] (1- month))
445 year))))
446
447(defun archive-dostime (time)
448 "Stringify dos packed TIME record."
449 (let ((hour (logand (ash time -11) 31))
70569550 450 (minute (logand (ash time -5) 63))
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451 (second (* 2 (logand time 31)))) ; 2 seconds resolution
452 (format "%02d:%02d:%02d" hour minute second)))
453
454;;(defun archive-unixdate (low high)
455;; "Stringify unix (LOW HIGH) date."
456;; (let ((str (current-time-string (cons high low))))
457;; (format "%s-%s-%s"
458;; (substring str 8 9)
459;; (substring str 4 7)
460;; (substring str 20 24))))
461
462;;(defun archive-unixtime (low high)
463;; "Stringify unix (LOW HIGH) time."
464;; (let ((str (current-time-string (cons high low))))
465;; (substring str 11 19)))
466
467(defun archive-get-lineno ()
468 (if (>= (point) archive-file-list-start)
469 (count-lines archive-file-list-start
470 (save-excursion (beginning-of-line) (point)))
471 0))
472
473(defun archive-get-descr (&optional noerror)
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474 "Return the descriptor vector for file at point.
475Does not signal an error if optional second argument NOERROR is non-nil."
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476 (let ((no (archive-get-lineno)))
477 (if (and (>= (point) archive-file-list-start)
478 (< no (length archive-files)))
479 (let ((item (aref archive-files no)))
480 (if (vectorp item)
481 item
482 (if (not noerror)
483 (error "Entry is not a regular member of the archive"))))
484 (if (not noerror)
485 (error "Line does not describe a member of the archive")))))
486;; -------------------------------------------------------------------------
487;; Section: the mode definition
488
9199a670 489;;;###autoload
665211a3 490(defun archive-mode (&optional force)
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491 "Major mode for viewing an archive file in a dired-like way.
492You can move around using the usual cursor motion commands.
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493Letters no longer insert themselves.
494Type `e' to pull a file out of the archive and into its own buffer;
495or click mouse-2 on the file's line in the archive mode buffer.
496
497If you edit a sub-file of this archive (as with the `e' command) and
498save it, the contents of that buffer will be saved back into the
499archive.
500
501\\{archive-mode-map}"
502 ;; This is not interactive because you shouldn't be turning this
503 ;; mode on and off. You can corrupt things that way.
504 (if (zerop (buffer-size))
505 ;; At present we cannot create archives from scratch
506 (funcall default-major-mode)
507 (if (and (not force) archive-files) nil
508 (let* ((type (archive-find-type))
ff39b9a1 509 (typename (capitalize (symbol-name type))))
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510 (kill-all-local-variables)
511 (make-local-variable 'archive-subtype)
512 (setq archive-subtype type)
513
514 ;; Buffer contains treated image of file before the file contents
515 (make-local-variable 'revert-buffer-function)
516 (setq revert-buffer-function 'archive-mode-revert)
517 (auto-save-mode 0)
665211a3 518
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519 ;; Remote archives are not written by a hook.
520 (if archive-remote nil
521 (make-local-variable 'write-contents-hooks)
522 (add-hook 'write-contents-hooks 'archive-write-file))
523
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524 (make-local-variable 'require-final-newline)
525 (setq require-final-newline nil)
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526 (make-local-variable 'local-enable-local-variables)
527 (setq local-enable-local-variables nil)
665211a3 528
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529 ;; Prevent loss of data when saving the file.
530 (make-local-variable 'file-precious-flag)
531 (setq file-precious-flag t)
532
665211a3 533 (make-local-variable 'archive-read-only)
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534 ;; Archives which are inside other archives and whose
535 ;; names are invalid for this OS, can't be written.
536 (setq archive-read-only
537 (or (not (file-writable-p (buffer-file-name)))
538 (and archive-subfile-mode
4dbbd6a1 539 (string-match file-name-invalid-regexp
380683ed 540 (aref archive-subfile-mode 0)))))
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541
542 ;; Should we use a local copy when accessing from outside Emacs?
543 (make-local-variable 'archive-local-name)
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544
545 ;; An archive can contain another archive whose name is invalid
546 ;; on local filesystem. Treat such archives as remote.
547 (or archive-remote
548 (setq archive-remote
549 (or (string-match archive-remote-regexp (buffer-file-name))
4dbbd6a1 550 (string-match file-name-invalid-regexp
380683ed 551 (buffer-file-name)))))
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552
553 (setq major-mode 'archive-mode)
554 (setq mode-name (concat typename "-Archive"))
555 ;; Run archive-foo-mode-hook and archive-mode-hook
556 (run-hooks (archive-name "mode-hook") 'archive-mode-hook)
557 (use-local-map archive-mode-map))
558
559 (make-local-variable 'archive-proper-file-start)
560 (make-local-variable 'archive-file-list-start)
561 (make-local-variable 'archive-file-list-end)
562 (make-local-variable 'archive-file-name-indent)
380683ed 563 (archive-summarize nil)
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564 (setq buffer-read-only t))))
565
566;; Archive mode is suitable only for specially formatted data.
567(put 'archive-mode 'mode-class 'special)
568;; -------------------------------------------------------------------------
569;; Section: Key maps
570
571(if archive-mode-map nil
572 (setq archive-mode-map (make-keymap))
573 (suppress-keymap archive-mode-map)
574 (define-key archive-mode-map " " 'archive-next-line)
575 (define-key archive-mode-map "a" 'archive-alternate-display)
576 ;;(define-key archive-mode-map "c" 'archive-copy)
577 (define-key archive-mode-map "d" 'archive-flag-deleted)
578 (define-key archive-mode-map "\C-d" 'archive-flag-deleted)
579 (define-key archive-mode-map "e" 'archive-extract)
580 (define-key archive-mode-map "f" 'archive-extract)
581 (define-key archive-mode-map "\C-m" 'archive-extract)
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582 (define-key archive-mode-map "g" 'revert-buffer)
583 (define-key archive-mode-map "h" 'describe-mode)
584 (define-key archive-mode-map "m" 'archive-mark)
585 (define-key archive-mode-map "n" 'archive-next-line)
586 (define-key archive-mode-map "\C-n" 'archive-next-line)
587 (define-key archive-mode-map [down] 'archive-next-line)
588 (define-key archive-mode-map "o" 'archive-extract-other-window)
589 (define-key archive-mode-map "p" 'archive-previous-line)
d4e672ca 590 (define-key archive-mode-map "q" 'quit-window)
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591 (define-key archive-mode-map "\C-p" 'archive-previous-line)
592 (define-key archive-mode-map [up] 'archive-previous-line)
593 (define-key archive-mode-map "r" 'archive-rename-entry)
594 (define-key archive-mode-map "u" 'archive-unflag)
595 (define-key archive-mode-map "\M-\C-?" 'archive-unmark-all-files)
596 (define-key archive-mode-map "v" 'archive-view)
597 (define-key archive-mode-map "x" 'archive-expunge)
598 (define-key archive-mode-map "\177" 'archive-unflag-backwards)
599 (define-key archive-mode-map "E" 'archive-extract-other-window)
600 (define-key archive-mode-map "M" 'archive-chmod-entry)
601 (define-key archive-mode-map "G" 'archive-chgrp-entry)
602 (define-key archive-mode-map "O" 'archive-chown-entry)
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603
604 (if archive-lemacs
605 (progn
606 ;; Not a nice "solution" but it'll have to do
607 (define-key archive-mode-map "\C-xu" 'archive-undo)
608 (define-key archive-mode-map "\C-_" 'archive-undo))
609 (substitute-key-definition 'undo 'archive-undo
610 archive-mode-map global-map))
611
612 (define-key archive-mode-map
613 (if archive-lemacs 'button2 [mouse-2]) 'archive-mouse-extract)
614
615 (if archive-lemacs
616 () ; out of luck
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617
618 (define-key archive-mode-map [menu-bar immediate]
619 (cons "Immediate" (make-sparse-keymap "Immediate")))
620 (define-key archive-mode-map [menu-bar immediate alternate]
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621 '(menu-item "Alternate Display" archive-alternate-display
622 :enable (boundp (archive-name "alternate-display"))
623 :help "Toggle alternate file info display"))
43f657ea 624 (define-key archive-mode-map [menu-bar immediate view]
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625 '(menu-item "View This File" archive-view
626 :help "Display file at cursor in View Mode"))
43f657ea 627 (define-key archive-mode-map [menu-bar immediate display]
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628 '(menu-item "Display in Other Window" archive-display-other-window
629 :help "Display file at cursor in another window"))
43f657ea 630 (define-key archive-mode-map [menu-bar immediate find-file-other-window]
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631 '(menu-item "Find in Other Window" archive-extract-other-window
632 :help "Edit file at cursor in another window"))
43f657ea 633 (define-key archive-mode-map [menu-bar immediate find-file]
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634 '(menu-item "Find This File" archive-extract
635 :help "Extract file at cursor and edit it"))
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636
637 (define-key archive-mode-map [menu-bar mark]
638 (cons "Mark" (make-sparse-keymap "Mark")))
639 (define-key archive-mode-map [menu-bar mark unmark-all]
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640 '(menu-item "Unmark All" archive-unmark-all-files
641 :help "Unmark all marked files"))
43f657ea 642 (define-key archive-mode-map [menu-bar mark deletion]
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643 '(menu-item "Flag" archive-flag-deleted
644 :help "Flag file at cursor for deletion"))
43f657ea 645 (define-key archive-mode-map [menu-bar mark unmark]
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646 '(menu-item "Unflag" archive-unflag
647 :help "Unmark file at cursor"))
43f657ea 648 (define-key archive-mode-map [menu-bar mark mark]
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649 '(menu-item "Mark" archive-mark
650 :help "Mark file at cursor"))
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651
652 (define-key archive-mode-map [menu-bar operate]
653 (cons "Operate" (make-sparse-keymap "Operate")))
654 (define-key archive-mode-map [menu-bar operate chown]
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655 '(menu-item "Change Owner..." archive-chown-entry
656 :enable (fboundp (archive-name "chown-entry"))
657 :help "Change owner of marked files"))
43f657ea 658 (define-key archive-mode-map [menu-bar operate chgrp]
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659 '(menu-item "Change Group..." archive-chgrp-entry
660 :enable (fboundp (archive-name "chgrp-entry"))
661 :help "Change group ownership of marked files"))
43f657ea 662 (define-key archive-mode-map [menu-bar operate chmod]
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663 '(menu-item "Change Mode..." archive-chmod-entry
664 :enable (fboundp (archive-name "chmod-entry"))
665 :help "Change mode (permissions) of marked files"))
43f657ea 666 (define-key archive-mode-map [menu-bar operate rename]
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667 '(menu-item "Rename to..." archive-rename-entry
668 :enable (fboundp (archive-name "rename-entry"))
669 :help "Rename marked files"))
43f657ea 670 ;;(define-key archive-mode-map [menu-bar operate copy]
2890bd0c 671 ;; '(menu-item "Copy to..." archive-copy))
43f657ea 672 (define-key archive-mode-map [menu-bar operate expunge]
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673 '(menu-item "Expunge Marked Files" archive-expunge
674 :help "Delete all flagged files from archive"))
43f657ea 675 ))
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676
677(let* ((item1 '(archive-subfile-mode " Archive"))
b48fa570 678 (items (list item1)))
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679 (or (member item1 minor-mode-alist)
680 (setq minor-mode-alist (append items minor-mode-alist))))
681;; -------------------------------------------------------------------------
682(defun archive-find-type ()
683 (widen)
684 (goto-char (point-min))
685 ;; The funny [] here make it unlikely that the .elc file will be treated
686 ;; as an archive by other software.
687 (let (case-fold-search)
688 (cond ((looking-at "[P]K\003\004") 'zip)
a56636ae 689 ((looking-at "..-l[hz][0-9ds]-") 'lzh)
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690 ((looking-at "....................[\334]\247\304\375") 'zoo)
691 ((and (looking-at "\C-z") ; signature too simple, IMHO
692 (string-match "\\.[aA][rR][cC]$"
693 (or buffer-file-name (buffer-name))))
694 'arc)
1cd7adc6 695 (t (error "Buffer format not recognized")))))
665211a3 696;; -------------------------------------------------------------------------
380683ed 697(defun archive-summarize (&optional shut-up)
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698 "Parse the contents of the archive file in the current buffer.
699Place a dired-like listing on the front;
700then narrow to it, so that only that listing
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701is visible (and the real data of the buffer is hidden).
702Optional argument SHUT-UP, if non-nil, means don't print messages
703when parsing the archive."
665211a3 704 (widen)
eb93d233 705 (set-buffer-multibyte nil)
665211a3 706 (let (buffer-read-only)
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707 (or shut-up
708 (message "Parsing archive file..."))
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709 (buffer-disable-undo (current-buffer))
710 (setq archive-files (funcall (archive-name "summarize")))
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711 (or shut-up
712 (message "Parsing archive file...done."))
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713 (setq archive-proper-file-start (point-marker))
714 (narrow-to-region (point-min) (point))
715 (set-buffer-modified-p nil)
716 (buffer-enable-undo))
717 (goto-char archive-file-list-start)
718 (archive-next-line 0))
719
720(defun archive-resummarize ()
721 "Recreate the contents listing of an archive."
722 (let ((modified (buffer-modified-p))
723 (no (archive-get-lineno))
724 buffer-read-only)
725 (widen)
726 (delete-region (point-min) archive-proper-file-start)
380683ed 727 (archive-summarize t)
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728 (set-buffer-modified-p modified)
729 (goto-char archive-file-list-start)
730 (archive-next-line no)))
731
732(defun archive-summarize-files (files)
c4de97b4 733 "Insert a description of a list of files annotated with proper mouse face."
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734 (setq archive-file-list-start (point-marker))
735 (setq archive-file-name-indent (if files (aref (car files) 1) 0))
736 ;; We don't want to do an insert for each element since that takes too
737 ;; long when the archive -- which has to be moved in memory -- is large.
738 (insert
739 (apply
740 (function concat)
741 (mapcar
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742 (function
743 (lambda (fil)
744 ;; Using `concat' here copies the text also, so we can add
745 ;; properties without problems.
746 (let ((text (concat (aref fil 0) "\n")))
747 (if archive-lemacs
748 () ; out of luck
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749 (add-text-properties
750 (aref fil 1) (aref fil 2)
751 '(mouse-face highlight
752 help-echo "mouse-2: extract this file into a buffer")
753 text))
43f657ea 754 text)))
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755 files)))
756 (setq archive-file-list-end (point-marker)))
757
758(defun archive-alternate-display ()
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759 "Toggle alternative display.
760To avoid very long lines some archive mode don't show all information.
761This function changes the set of information shown for each files."
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762 (interactive)
763 (setq archive-alternate-display (not archive-alternate-display))
764 (archive-resummarize))
765;; -------------------------------------------------------------------------
766;; Section: Local archive copy handling
767
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768(defun archive-unique-fname (fname dir)
769 "Make sure a file FNAME can be created uniquely in directory DIR.
770
771If FNAME can be uniquely created in DIR, it is returned unaltered.
772If FNAME is something our underlying filesystem can't grok, or if another
773file by that name already exists in DIR, a unique new name is generated
ff39b9a1 774using `make-temp-file', and the generated name is returned."
380683ed 775 (let ((fullname (expand-file-name fname dir))
4dbbd6a1 776 (alien (string-match file-name-invalid-regexp fname)))
380683ed 777 (if (or alien (file-exists-p fullname))
ff39b9a1 778 (make-temp-file
380683ed 779 (expand-file-name
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780 (if (and (fboundp 'msdos-long-file-names)
781 (not (msdos-long-file-names)))
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782 "am"
783 "arc-mode.")
784 dir))
785 fullname)))
786
665211a3 787(defun archive-maybe-copy (archive)
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788 (let ((coding-system-for-write 'no-conversion))
789 (if archive-remote
790 (let ((start (point-max))
791 ;; Sometimes ARCHIVE is invalid while its actual name, as
792 ;; recorded in its parent archive, is not. For example, an
793 ;; archive bar.zip inside another archive foo.zip gets a name
794 ;; "foo.zip:bar.zip", which is invalid on DOS/Windows.
795 ;; So use the actual name if available.
796 (archive-name
797 (or (and archive-subfile-mode (aref archive-subfile-mode 0))
798 archive)))
799 (make-directory archive-tmpdir t)
800 (setq archive-local-name
801 (archive-unique-fname archive-name archive-tmpdir))
802 (save-restriction
803 (widen)
804 (write-region start (point-max) archive-local-name nil 'nomessage))
805 archive-local-name)
806 (if (buffer-modified-p) (save-buffer))
807 archive)))
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808
809(defun archive-maybe-update (unchanged)
810 (if archive-remote
811 (let ((name archive-local-name)
812 (modified (buffer-modified-p))
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813 (coding-system-for-read 'no-conversion)
814 (lno (archive-get-lineno))
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815 buffer-read-only)
816 (if unchanged nil
380683ed 817 (setq archive-files nil)
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818 (erase-buffer)
819 (insert-file-contents name)
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820 (archive-mode t)
821 (goto-char archive-file-list-start)
822 (archive-next-line lno))
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823 (archive-delete-local name)
824 (if (not unchanged)
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825 (message
826 "Buffer `%s' must be saved for changes to take effect"
827 (buffer-name (current-buffer))))
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828 (set-buffer-modified-p (or modified (not unchanged))))))
829
830(defun archive-delete-local (name)
eeba65ed 831 "Delete file NAME and its parents up to and including `archive-tmpdir'."
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832 (let ((again t)
833 (top (directory-file-name (file-name-as-directory archive-tmpdir))))
834 (condition-case nil
835 (delete-file name)
836 (error nil))
837 (while again
838 (setq name (directory-file-name (file-name-directory name)))
839 (condition-case nil
840 (delete-directory name)
841 (error nil))
842 (if (string= name top) (setq again nil)))))
843;; -------------------------------------------------------------------------
844;; Section: Member extraction
845
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846(defun archive-file-name-handler (op &rest args)
847 (or (eq op 'file-exists-p)
848 (let ((file-name-handler-alist nil))
849 (apply op args))))
850
851(defun archive-set-buffer-as-visiting-file (filename)
852 "Set the current buffer as if it were visiting FILENAME."
853 (save-excursion
854 (goto-char (point-min))
855 (let ((coding
856 (or coding-system-for-read
857 (and set-auto-coding-function
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858 (save-excursion
859 (funcall set-auto-coding-function
860 filename (- (point-max) (point-min)))))
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861 ;; dos-w32.el defines find-operation-coding-system for
862 ;; DOS/Windows systems which preserves the coding-system
863 ;; of existing files. We want it to act here as if the
864 ;; extracted file existed.
865 (let ((file-name-handler-alist
866 '(("" . archive-file-name-handler))))
867 (car (find-operation-coding-system 'insert-file-contents
868 filename t))))))
869 (if (and (not coding-system-for-read)
870 (not enable-multibyte-characters))
871 (setq coding
872 (coding-system-change-text-conversion coding 'raw-text)))
873 (if (and coding
874 (not (eq coding 'no-conversion)))
875 (decode-coding-region (point-min) (point-max) coding)
876 (setq last-coding-system-used coding))
877 (set-buffer-modified-p nil)
878 (kill-local-variable 'buffer-file-coding-system)
879 (after-insert-file-set-buffer-file-coding-system (- (point-max)
880 (point-min))))))
881
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882(defun archive-mouse-extract (event)
883 "Extract a file whose name you click on."
884 (interactive "e")
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885 (mouse-set-point event)
886 (switch-to-buffer
887 (save-excursion
888 (archive-extract)
889 (current-buffer))))
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890
891(defun archive-extract (&optional other-window-p)
892 "In archive mode, extract this entry of the archive into its own buffer."
893 (interactive)
894 (let* ((view-p (eq other-window-p 'view))
895 (descr (archive-get-descr))
896 (ename (aref descr 0))
897 (iname (aref descr 1))
898 (archive-buffer (current-buffer))
899 (arcdir default-directory)
900 (archive (buffer-file-name))
901 (arcname (file-name-nondirectory archive))
902 (bufname (concat (file-name-nondirectory iname) " (" arcname ")"))
903 (extractor (archive-name "extract"))
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904 ;; Members with file names which aren't valid for the
905 ;; underlying filesystem, are treated as read-only.
906 (read-only-p (or archive-read-only
907 view-p
4dbbd6a1 908 (string-match file-name-invalid-regexp ename)))
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909 (buffer (get-buffer bufname))
910 (just-created nil))
911 (if buffer
912 nil
913 (setq archive (archive-maybe-copy archive))
914 (setq buffer (get-buffer-create bufname))
915 (setq just-created t)
916 (save-excursion
917 (set-buffer buffer)
918 (setq buffer-file-name
919 (expand-file-name (concat arcname ":" iname)))
920 (setq buffer-file-truename
921 (abbreviate-file-name buffer-file-name))
922 ;; Set the default-directory to the dir of the superior buffer.
923 (setq default-directory arcdir)
924 (make-local-variable 'archive-superior-buffer)
925 (setq archive-superior-buffer archive-buffer)
926 (make-local-variable 'local-write-file-hooks)
927 (add-hook 'local-write-file-hooks 'archive-write-file-member)
928 (setq archive-subfile-mode descr)
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929 (if (and
930 (null
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931 (let (;; We may have to encode file name arguement for
932 ;; external programs.
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933 (coding-system-for-write
934 (and enable-multibyte-characters
935 file-name-coding-system))
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936 ;; We read an archive member by no-conversion at
937 ;; first, then decode appropriately by calling
938 ;; archive-set-buffer-as-visiting-file later.
939 (coding-system-for-read 'no-conversion))
940 (condition-case err
941 (if (fboundp extractor)
942 (funcall extractor archive ename)
943 (archive-*-extract archive ename
944 (symbol-value extractor)))
945 (error
946 (ding (message "%s" (error-message-string err)))
947 nil))))
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948 just-created)
949 (progn
950 (set-buffer-modified-p nil)
951 (kill-buffer buffer))
eb93d233 952 (archive-set-buffer-as-visiting-file ename)
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953 (goto-char (point-min))
954 (rename-buffer bufname)
955 (setq buffer-read-only read-only-p)
956 (setq buffer-undo-list nil)
957 (set-buffer-modified-p nil)
958 (setq buffer-saved-size (buffer-size))
959 (normal-mode)
960 ;; Just in case an archive occurs inside another archive.
961 (if (eq major-mode 'archive-mode)
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962 (progn
963 (setq archive-remote t)
964 (if read-only-p (setq archive-read-only t))
965 ;; We will write out the archive ourselves if it is
966 ;; part of another archive.
967 (remove-hook 'write-contents-hooks 'archive-write-file t)))
968 (run-hooks 'archive-extract-hooks)
969 (if archive-read-only
970 (message "Note: altering this archive is not implemented."))))
971 (archive-maybe-update t))
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972 (or (not (buffer-name buffer))
973 (progn
974 (if view-p
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975 (view-buffer buffer (and just-created 'kill-buffer))
976 (if (eq other-window-p 'display)
977 (display-buffer buffer)
978 (if other-window-p
979 (switch-to-buffer-other-window buffer)
980 (switch-to-buffer buffer))))))))
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981
982(defun archive-*-extract (archive name command)
983 (let* ((default-directory (file-name-as-directory archive-tmpdir))
984 (tmpfile (expand-file-name (file-name-nondirectory name)
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985 default-directory))
986 exit-status success)
665211a3 987 (make-directory (directory-file-name default-directory) t)
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988 (setq exit-status
989 (apply 'call-process
990 (car command)
991 nil
992 nil
993 nil
994 (append (cdr command) (list archive name))))
995 (cond ((and (numberp exit-status) (= exit-status 0))
996 (if (not (file-exists-p tmpfile))
997 (ding (message "`%s': no such file or directory" tmpfile))
998 (insert-file-contents tmpfile)
999 (setq success t)))
1000 ((numberp exit-status)
1001 (ding
1002 (message "`%s' exited with status %d" (car command) exit-status)))
1003 ((stringp exit-status)
1004 (ding (message "`%s' aborted: %s" (car command) exit-status)))
1005 (t
1006 (ding (message "`%s' failed" (car command)))))
1007 (archive-delete-local tmpfile)
1008 success))
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1009
1010(defun archive-extract-by-stdout (archive name command)
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1011 (apply 'call-process
1012 (car command)
1013 nil
1014 t
1015 nil
1016 (append (cdr command) (list archive name))))
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1017
1018(defun archive-extract-other-window ()
1019 "In archive mode, find this member in another window."
1020 (interactive)
1021 (archive-extract t))
1022
1023(defun archive-display-other-window ()
1024 "In archive mode, display this member in another window."
1025 (interactive)
1026 (archive-extract 'display))
1027
1028(defun archive-view ()
1029 "In archive mode, view the member on this line."
1030 (interactive)
1031 (archive-extract 'view))
1032
1033(defun archive-add-new-member (arcbuf name)
eeba65ed 1034 "Add current buffer to the archive in ARCBUF naming it NAME."
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1035 (interactive
1036 (list (get-buffer
1037 (read-buffer "Buffer containing archive: "
1038 ;; Find first archive buffer and suggest that
1039 (let ((bufs (buffer-list)))
1040 (while (and bufs (not (eq (save-excursion
1041 (set-buffer (car bufs))
1042 major-mode)
1043 'archive-mode)))
1044 (setq bufs (cdr bufs)))
1045 (if bufs
1046 (car bufs)
1047 (error "There are no archive buffers")))
1048 t))
1049 (read-string "File name in archive: "
1050 (if buffer-file-name
1051 (file-name-nondirectory buffer-file-name)
1052 ""))))
1053 (save-excursion
1054 (set-buffer arcbuf)
1055 (or (eq major-mode 'archive-mode)
1056 (error "Buffer is not an archive buffer"))
1057 (if archive-read-only
1058 (error "Archive is read-only")))
1059 (if (eq arcbuf (current-buffer))
1060 (error "An archive buffer cannot be added to itself"))
1061 (if (string= name "")
1062 (error "Archive members may not be given empty names"))
1063 (let ((func (save-excursion (set-buffer arcbuf)
1064 (archive-name "add-new-member")))
1065 (membuf (current-buffer)))
1066 (if (fboundp func)
1067 (save-excursion
1068 (set-buffer arcbuf)
1069 (funcall func buffer-file-name membuf name))
1070 (error "Adding a new member is not supported for this archive type"))))
1071;; -------------------------------------------------------------------------
1072;; Section: IO stuff
1073
665211a3 1074(defun archive-write-file-member ()
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1075 (save-excursion
1076 (save-restriction
1077 (message "Updating archive...")
1078 (widen)
1079 (let ((writer (save-excursion (set-buffer archive-superior-buffer)
1080 (archive-name "write-file-member")))
1081 (archive (save-excursion (set-buffer archive-superior-buffer)
380683ed 1082 (archive-maybe-copy (buffer-file-name)))))
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1083 (if (fboundp writer)
1084 (funcall writer archive archive-subfile-mode)
1085 (archive-*-write-file-member archive
1086 archive-subfile-mode
380683ed
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1087 (symbol-value writer)))
1088 (set-buffer-modified-p nil)
1089 (message "Updating archive...done"))
b48fa570 1090 (set-buffer archive-superior-buffer)
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1091 (if (not archive-remote) (revert-buffer) (archive-maybe-update nil))))
1092 ;; Restore the value of last-coding-system-used, so that basic-save-buffer
1093 ;; won't reset the coding-system of this archive member.
1094 (if (local-variable-p 'archive-member-coding-system)
1095 (setq last-coding-system-used archive-member-coding-system))
1096 t)
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1097
1098(defun archive-*-write-file-member (archive descr command)
1099 (let* ((ename (aref descr 0))
1100 (tmpfile (expand-file-name ename archive-tmpdir))
1101 (top (directory-file-name (file-name-as-directory archive-tmpdir)))
1102 (default-directory (file-name-as-directory top)))
1103 (unwind-protect
1104 (progn
1105 (make-directory (file-name-directory tmpfile) t)
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1106 ;; If the member is itself an archive, write it without
1107 ;; the dired-like listing we created.
1108 (if (eq major-mode 'archive-mode)
1109 (archive-write-file tmpfile)
1110 (write-region (point-min) (point-max) tmpfile nil 'nomessage))
1111 ;; basic-save-buffer needs last-coding-system-used to have
1112 ;; the value used to write the file, so save it before any
1113 ;; further processing clobbers it (we restore it in
1114 ;; archive-write-file-member, above).
1115 (setq archive-member-coding-system last-coding-system-used)
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1116 (if (aref descr 3)
1117 ;; Set the file modes, but make sure we can read it.
1118 (set-file-modes tmpfile (logior ?\400 (aref descr 3))))
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1119 (if enable-multibyte-characters
1120 (setq ename
1121 (encode-coding-string ename file-name-coding-system)))
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1122 (let ((exitcode (apply 'call-process
1123 (car command)
1124 nil
1125 nil
1126 nil
1127 (append (cdr command) (list archive ename)))))
1128 (if (equal exitcode 0)
1129 nil
1130 (error "Updating was unsuccessful (%S)" exitcode))))
1131 (archive-delete-local tmpfile))))
1132
380683ed 1133(defun archive-write-file (&optional file)
665211a3 1134 (save-excursion
380683ed
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1135 (let ((coding-system-for-write 'no-conversion))
1136 (write-region archive-proper-file-start (point-max)
1137 (or file buffer-file-name) nil t)
1138 (set-buffer-modified-p nil))
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1139 t))
1140;; -------------------------------------------------------------------------
1141;; Section: Marking and unmarking.
1142
1143(defun archive-flag-deleted (p &optional type)
1144 "In archive mode, mark this member to be deleted from the archive.
1145With a prefix argument, mark that many files."
1146 (interactive "p")
1147 (or type (setq type ?D))
1148 (beginning-of-line)
1149 (let ((sign (if (>= p 0) +1 -1))
1150 (modified (buffer-modified-p))
1151 buffer-read-only)
1152 (while (not (zerop p))
1153 (if (archive-get-descr t)
1154 (progn
1155 (delete-char 1)
1156 (insert type)))
1157 (forward-line sign)
1158 (setq p (- p sign)))
1159 (set-buffer-modified-p modified))
1160 (archive-next-line 0))
1161
1162(defun archive-unflag (p)
1163 "In archive mode, un-mark this member if it is marked to be deleted.
1164With a prefix argument, un-mark that many files forward."
1165 (interactive "p")
1166 (archive-flag-deleted p ? ))
1167
1168(defun archive-unflag-backwards (p)
1169 "In archive mode, un-mark this member if it is marked to be deleted.
1170With a prefix argument, un-mark that many members backward."
1171 (interactive "p")
1172 (archive-flag-deleted (- p) ? ))
1173
1174(defun archive-unmark-all-files ()
1175 "Remove all marks."
1176 (interactive)
1177 (let ((modified (buffer-modified-p))
1178 buffer-read-only)
1179 (save-excursion
1180 (goto-char archive-file-list-start)
1181 (while (< (point) archive-file-list-end)
1182 (or (= (following-char) ? )
1183 (progn (delete-char 1) (insert ? )))
1184 (forward-line 1)))
1185 (set-buffer-modified-p modified)))
1186
1187(defun archive-mark (p)
1188 "In archive mode, mark this member for group operations.
1189With a prefix argument, mark that many members.
1190Use \\[archive-unmark-all-files] to remove all marks."
1191 (interactive "p")
1192 (archive-flag-deleted p ?*))
1193
1194(defun archive-get-marked (mark &optional default)
1195 (let (files)
1196 (save-excursion
1197 (goto-char archive-file-list-start)
1198 (while (< (point) archive-file-list-end)
1199 (if (= (following-char) mark)
1200 (setq files (cons (archive-get-descr) files)))
1201 (forward-line 1)))
1202 (or (nreverse files)
1203 (and default
1204 (list (archive-get-descr))))))
1205;; -------------------------------------------------------------------------
1206;; Section: Operate
1207
1208(defun archive-next-line (p)
1209 (interactive "p")
1210 (forward-line p)
1211 (or (eobp)
1212 (forward-char archive-file-name-indent)))
1213
1214(defun archive-previous-line (p)
1215 (interactive "p")
1216 (archive-next-line (- p)))
1217
1218(defun archive-chmod-entry (new-mode)
eeba65ed 1219 "Change the protection bits associated with all marked or this member.
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1220The new protection bits can either be specified as an octal number or
1221as a relative change like \"g+rw\" as for chmod(2)"
1222 (interactive "sNew mode (octal or relative): ")
1223 (if archive-read-only (error "Archive is read-only"))
1224 (let ((func (archive-name "chmod-entry")))
1225 (if (fboundp func)
1226 (progn
1227 (funcall func new-mode (archive-get-marked ?* t))
1228 (archive-resummarize))
1229 (error "Setting mode bits is not supported for this archive type"))))
1230
1231(defun archive-chown-entry (new-uid)
1232 "Change the owner of all marked or this member."
1233 (interactive "nNew uid: ")
1234 (if archive-read-only (error "Archive is read-only"))
1235 (let ((func (archive-name "chown-entry")))
1236 (if (fboundp func)
1237 (progn
1238 (funcall func new-uid (archive-get-marked ?* t))
1239 (archive-resummarize))
1240 (error "Setting owner is not supported for this archive type"))))
1241
1242(defun archive-chgrp-entry (new-gid)
1243 "Change the group of all marked or this member."
1244 (interactive "nNew gid: ")
1245 (if archive-read-only (error "Archive is read-only"))
1246 (let ((func (archive-name "chgrp-entry")))
1247 (if (fboundp func)
1248 (progn
1249 (funcall func new-gid (archive-get-marked ?* t))
1250 (archive-resummarize))
1251 (error "Setting group is not supported for this archive type"))))
1252
1253(defun archive-expunge ()
1254 "Do the flagged deletions."
1255 (interactive)
1256 (let (files)
1257 (save-excursion
1258 (goto-char archive-file-list-start)
1259 (while (< (point) archive-file-list-end)
1260 (if (= (following-char) ?D)
1261 (setq files (cons (aref (archive-get-descr) 0) files)))
1262 (forward-line 1)))
1263 (setq files (nreverse files))
1264 (and files
1265 (or (not archive-read-only)
1266 (error "Archive is read-only"))
1267 (or (yes-or-no-p (format "Really delete %d member%s? "
1268 (length files)
1269 (if (null (cdr files)) "" "s")))
1270 (error "Operation aborted"))
1271 (let ((archive (archive-maybe-copy (buffer-file-name)))
1272 (expunger (archive-name "expunge")))
1273 (if (fboundp expunger)
1274 (funcall expunger archive files)
1275 (archive-*-expunge archive files (symbol-value expunger)))
1276 (archive-maybe-update nil)
1277 (if archive-remote
1278 (archive-resummarize)
1279 (revert-buffer))))))
1280
1281(defun archive-*-expunge (archive files command)
1282 (apply 'call-process
1283 (car command)
1284 nil
1285 nil
1286 nil
1287 (append (cdr command) (cons archive files))))
1288
1289(defun archive-rename-entry (newname)
1290 "Change the name associated with this entry in the tar file."
1291 (interactive "sNew name: ")
1292 (if archive-read-only (error "Archive is read-only"))
1293 (if (string= newname "")
1294 (error "Archive members may not be given empty names"))
1295 (let ((func (archive-name "rename-entry"))
1296 (descr (archive-get-descr)))
1297 (if (fboundp func)
1298 (progn
eb93d233 1299 (funcall func (buffer-file-name)
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1300 (if enable-multibyte-characters
1301 (encode-coding-string newname file-name-coding-system)
1302 newname)
eb93d233 1303 descr)
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1304 (archive-resummarize))
1305 (error "Renaming is not supported for this archive type"))))
1306
1307;; Revert the buffer and recompute the dired-like listing.
ad014140 1308(defun archive-mode-revert (&optional no-auto-save no-confirm)
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1309 (let ((no (archive-get-lineno)))
1310 (setq archive-files nil)
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1311 (let ((revert-buffer-function nil)
1312 (coding-system-for-read 'no-conversion))
eb93d233 1313 (set-buffer-multibyte nil)
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1314 (revert-buffer t t))
1315 (archive-mode)
1316 (goto-char archive-file-list-start)
1317 (archive-next-line no)))
1318
1319(defun archive-undo ()
1320 "Undo in an archive buffer.
1321This doesn't recover lost files, it just undoes changes in the buffer itself."
1322 (interactive)
1323 (let (buffer-read-only)
1324 (undo)))
1325;; -------------------------------------------------------------------------
1326;; Section: Arc Archives
1327
1328(defun archive-arc-summarize ()
1329 (let ((p 1)
1330 (totalsize 0)
1331 (maxlen 8)
1332 files
1333 visual)
1334 (while (and (< (+ p 29) (point-max))
1335 (= (char-after p) ?\C-z)
1336 (> (char-after (1+ p)) 0))
1337 (let* ((namefld (buffer-substring (+ p 2) (+ p 2 13)))
1338 (fnlen (or (string-match "\0" namefld) 13))
1339 (efnname (substring namefld 0 fnlen))
1340 (csize (archive-l-e (+ p 15) 4))
1341 (moddate (archive-l-e (+ p 19) 2))
1342 (modtime (archive-l-e (+ p 21) 2))
1343 (ucsize (archive-l-e (+ p 25) 4))
1344 (fiddle (string= efnname (upcase efnname)))
1345 (ifnname (if fiddle (downcase efnname) efnname))
1346 (text (format " %8d %-11s %-8s %s"
1347 ucsize
1348 (archive-dosdate moddate)
1349 (archive-dostime modtime)
1350 ifnname)))
1351 (setq maxlen (max maxlen fnlen)
1352 totalsize (+ totalsize ucsize)
1353 visual (cons (vector text
1354 (- (length text) (length ifnname))
1355 (length text))
1356 visual)
1357 files (cons (vector efnname ifnname fiddle nil (1- p))
1358 files)
1359 p (+ p 29 csize))))
1360 (goto-char (point-min))
1361 (let ((dash (concat "- -------- ----------- -------- "
1362 (make-string maxlen ?-)
1363 "\n")))
1364 (insert "M Length Date Time File\n"
1365 dash)
1366 (archive-summarize-files (nreverse visual))
1367 (insert dash
1368 (format " %8d %d file%s"
1369 totalsize
1370 (length files)
1371 (if (= 1 (length files)) "" "s"))
1372 "\n"))
1373 (apply 'vector (nreverse files))))
1374
1375(defun archive-arc-rename-entry (archive newname descr)
1376 (if (string-match "[:\\\\/]" newname)
1377 (error "File names in arc files may not contain a path"))
1378 (if (> (length newname) 12)
1379 (error "File names in arc files are limited to 12 characters"))
1380 (let ((name (concat newname (substring "\0\0\0\0\0\0\0\0\0\0\0\0\0"
1381 (length newname))))
1382 buffer-read-only)
1383 (save-restriction
1384 (save-excursion
1385 (widen)
eb93d233 1386 (set-buffer-multibyte nil)
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1387 (goto-char (+ archive-proper-file-start (aref descr 4) 2))
1388 (delete-char 13)
1389 (insert name)))))
1390;; -------------------------------------------------------------------------
1391;; Section: Lzh Archives
1392
1393(defun archive-lzh-summarize ()
1394 (let ((p 1)
1395 (totalsize 0)
1396 (maxlen 8)
1397 files
1398 visual)
a56636ae
RS
1399 (while (progn (goto-char p)
1400 (looking-at "\\(.\\|\n\\)\\(.\\|\n\\)-l[hz][0-9ds]-"))
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1401 (let* ((hsize (char-after p))
1402 (csize (archive-l-e (+ p 7) 4))
1403 (ucsize (archive-l-e (+ p 11) 4))
1404 (modtime (archive-l-e (+ p 15) 2))
1405 (moddate (archive-l-e (+ p 17) 2))
a56636ae 1406 (hdrlvl (char-after (+ p 20)))
665211a3 1407 (fnlen (char-after (+ p 21)))
eb93d233
EZ
1408 (efnname (let ((str (buffer-substring (+ p 22) (+ p 22 fnlen))))
1409 (if file-name-coding-system
1410 (decode-coding-string str file-name-coding-system)
1411 (string-as-multibyte str))))
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1412 (fiddle (string= efnname (upcase efnname)))
1413 (ifnname (if fiddle (downcase efnname) efnname))
eb93d233 1414 (width (string-width ifnname))
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1415 (p2 (+ p 22 fnlen))
1416 (creator (if (>= (- hsize fnlen) 24) (char-after (+ p2 2)) 0))
a56636ae
RS
1417 mode modestr uid gid text path prname
1418 )
1419 (if (= hdrlvl 0)
1420 (setq mode (if (= creator ?U) (archive-l-e (+ p2 8) 2) ?\666)
1421 uid (if (= creator ?U) (archive-l-e (+ p2 10) 2))
1422 gid (if (= creator ?U) (archive-l-e (+ p2 12) 2)))
1423 (if (= creator ?U)
1424 (let* ((p3 (+ p2 3))
1425 (hsize (archive-l-e p3 2))
1426 (etype (char-after (+ p3 2))))
1427 (while (not (= hsize 0))
1428 (cond
1429 ((= etype 2) (let ((i (+ p3 3)))
1430 (while (< i (+ p3 hsize))
1431 (setq path (concat path
1432 (if (= (char-after i)
1433 255)
1434 "/"
1435 (char-to-string
1436 (char-after i)))))
1437 (setq i (1+ i)))))
1438 ((= etype 80) (setq mode (archive-l-e (+ p3 3) 2)))
1439 ((= etype 81) (progn (setq uid (archive-l-e (+ p3 3) 2))
1440 (setq gid (archive-l-e (+ p3 5) 2))))
1441 )
1442 (setq p3 (+ p3 hsize))
1443 (setq hsize (archive-l-e p3 2))
1444 (setq etype (char-after (+ p3 2)))))))
1445 (setq prname (if path (concat path ifnname) ifnname))
1446 (setq modestr (if mode (archive-int-to-mode mode) "??????????"))
1447 (setq text (if archive-alternate-display
665211a3
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1448 (format " %8d %5S %5S %s"
1449 ucsize
1450 (or uid "?")
1451 (or gid "?")
1452 ifnname)
1453 (format " %10s %8d %-11s %-8s %s"
1454 modestr
1455 ucsize
1456 (archive-dosdate moddate)
1457 (archive-dostime modtime)
a56636ae 1458 ifnname)))
eb93d233 1459 (setq maxlen (max maxlen width)
665211a3
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1460 totalsize (+ totalsize ucsize)
1461 visual (cons (vector text
1462 (- (length text) (length ifnname))
1463 (length text))
1464 visual)
a56636ae 1465 files (cons (vector prname ifnname fiddle mode (1- p))
665211a3
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1466 files)
1467 p (+ p hsize 2 csize))))
1468 (goto-char (point-min))
eb93d233 1469 (set-buffer-multibyte default-enable-multibyte-characters)
665211a3
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1470 (let ((dash (concat (if archive-alternate-display
1471 "- -------- ----- ----- "
1472 "- ---------- -------- ----------- -------- ")
1473 (make-string maxlen ?-)
1474 "\n"))
1475 (header (if archive-alternate-display
1476 "M Length Uid Gid File\n"
1477 "M Filemode Length Date Time File\n"))
1478 (sumline (if archive-alternate-display
1479 " %8d %d file%s"
1480 " %8d %d file%s")))
1481 (insert header dash)
1482 (archive-summarize-files (nreverse visual))
1483 (insert dash
1484 (format sumline
1485 totalsize
1486 (length files)
1487 (if (= 1 (length files)) "" "s"))
1488 "\n"))
1489 (apply 'vector (nreverse files))))
1490
1491(defconst archive-lzh-alternate-display t)
1492
1493(defun archive-lzh-extract (archive name)
1494 (archive-extract-by-stdout archive name archive-lzh-extract))
1495
1496(defun archive-lzh-resum (p count)
1497 (let ((sum 0))
1498 (while (> count 0)
1499 (setq count (1- count)
1500 sum (+ sum (char-after p))
1501 p (1+ p)))
1502 (logand sum 255)))
1503
1504(defun archive-lzh-rename-entry (archive newname descr)
1505 (save-restriction
1506 (save-excursion
1507 (widen)
eb93d233 1508 (set-buffer-multibyte nil)
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1509 (let* ((p (+ archive-proper-file-start (aref descr 4)))
1510 (oldhsize (char-after p))
1511 (oldfnlen (char-after (+ p 21)))
1512 (newfnlen (length newname))
1513 (newhsize (+ oldhsize newfnlen (- oldfnlen)))
1514 buffer-read-only)
1515 (if (> newhsize 255)
1516 (error "The file name is too long"))
1517 (goto-char (+ p 21))
1518 (delete-char (1+ oldfnlen))
1519 (insert newfnlen newname)
1520 (goto-char p)
1521 (delete-char 2)
1522 (insert newhsize (archive-lzh-resum p newhsize))))))
1523
1524(defun archive-lzh-ogm (newval files errtxt ofs)
1525 (save-restriction
1526 (save-excursion
1527 (widen)
eb93d233 1528 (set-buffer-multibyte nil)
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1529 (while files
1530 (let* ((fil (car files))
1531 (p (+ archive-proper-file-start (aref fil 4)))
1532 (hsize (char-after p))
1533 (fnlen (char-after (+ p 21)))
1534 (p2 (+ p 22 fnlen))
1535 (creator (if (>= (- hsize fnlen) 24) (char-after (+ p2 2)) 0))
1536 buffer-read-only)
1537 (if (= creator ?U)
1538 (progn
1539 (or (numberp newval)
1540 (setq newval (funcall newval (archive-l-e (+ p2 ofs) 2))))
1541 (goto-char (+ p2 ofs))
1542 (delete-char 2)
1543 (insert (logand newval 255) (lsh newval -8))
1544 (goto-char (1+ p))
1545 (delete-char 1)
1546 (insert (archive-lzh-resum (1+ p) hsize)))
1547 (message "Member %s does not have %s field"
1548 (aref fil 1) errtxt)))
1549 (setq files (cdr files))))))
1550
1551(defun archive-lzh-chown-entry (newuid files)
1552 (archive-lzh-ogm newuid files "an uid" 10))
1553
1554(defun archive-lzh-chgrp-entry (newgid files)
1555 (archive-lzh-ogm newgid files "a gid" 12))
1556
1557(defun archive-lzh-chmod-entry (newmode files)
1558 (archive-lzh-ogm
1559 ;; This should work even though newmode will be dynamically accessed.
43f657ea 1560 (function (lambda (old) (archive-calc-mode old newmode t)))
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1561 files "a unix-style mode" 8))
1562;; -------------------------------------------------------------------------
1563;; Section: Zip Archives
1564
1565(defun archive-zip-summarize ()
1566 (goto-char (- (point-max) (- 22 18)))
1567 (search-backward-regexp "[P]K\005\006")
1568 (let ((p (1+ (archive-l-e (+ (point) 16) 4)))
1569 (maxlen 8)
1570 (totalsize 0)
1571 files
1572 visual)
1573 (while (string= "PK\001\002" (buffer-substring p (+ p 4)))
1574 (let* ((creator (char-after (+ p 5)))
1575 (method (archive-l-e (+ p 10) 2))
1576 (modtime (archive-l-e (+ p 12) 2))
1577 (moddate (archive-l-e (+ p 14) 2))
1578 (ucsize (archive-l-e (+ p 24) 4))
1579 (fnlen (archive-l-e (+ p 28) 2))
1580 (exlen (archive-l-e (+ p 30) 2))
845720b9 1581 (fclen (archive-l-e (+ p 32) 2))
665211a3 1582 (lheader (archive-l-e (+ p 42) 4))
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1583 (efnname (let ((str (buffer-substring (+ p 46) (+ p 46 fnlen))))
1584 (if file-name-coding-system
1585 (decode-coding-string str file-name-coding-system)
1586 (string-as-multibyte str))))
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1587 (isdir (and (= ucsize 0)
1588 (string= (file-name-nondirectory efnname) "")))
1589 (mode (cond ((memq creator '(2 3)) ; Unix + VMS
1590 (archive-l-e (+ p 40) 2))
380683ed 1591 ((memq creator '(0 5 6 7 10 11 15)) ; Dos etc.
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1592 (logior ?\444
1593 (if isdir (logior 16384 ?\111) 0)
1594 (if (zerop
1595 (logand 1 (char-after (+ p 38))))
1596 ?\222 0)))
1597 (t nil)))
1598 (modestr (if mode (archive-int-to-mode mode) "??????????"))
1599 (fiddle (and archive-zip-case-fiddle
380683ed
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1600 (not (not (memq creator '(0 2 4 5 9))))
1601 (string= (upcase efnname) efnname)))
665211a3 1602 (ifnname (if fiddle (downcase efnname) efnname))
eb93d233 1603 (width (string-width ifnname))
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1604 (text (format " %10s %8d %-11s %-8s %s"
1605 modestr
1606 ucsize
1607 (archive-dosdate moddate)
1608 (archive-dostime modtime)
1609 ifnname)))
eb93d233 1610 (setq maxlen (max maxlen width)
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1611 totalsize (+ totalsize ucsize)
1612 visual (cons (vector text
1613 (- (length text) (length ifnname))
1614 (length text))
1615 visual)
1616 files (cons (if isdir
1617 nil
1618 (vector efnname ifnname fiddle mode
1619 (list (1- p) lheader)))
1620 files)
845720b9 1621 p (+ p 46 fnlen exlen fclen))))
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1622 (goto-char (point-min))
1623 (let ((dash (concat "- ---------- -------- ----------- -------- "
1624 (make-string maxlen ?-)
1625 "\n")))
1626 (insert "M Filemode Length Date Time File\n"
1627 dash)
1628 (archive-summarize-files (nreverse visual))
1629 (insert dash
1630 (format " %8d %d file%s"
1631 totalsize
1632 (length files)
1633 (if (= 1 (length files)) "" "s"))
1634 "\n"))
1635 (apply 'vector (nreverse files))))
1636
1637(defun archive-zip-extract (archive name)
1638 (if archive-zip-use-pkzip
1639 (archive-*-extract archive name archive-zip-extract)
1640 (archive-extract-by-stdout archive name archive-zip-extract)))
1641
1642(defun archive-zip-write-file-member (archive descr)
1643 (archive-*-write-file-member
1644 archive
1645 descr
1646 (if (aref descr 2) archive-zip-update-case archive-zip-update)))
1647
1648(defun archive-zip-chmod-entry (newmode files)
1649 (save-restriction
1650 (save-excursion
1651 (widen)
eb93d233 1652 (set-buffer-multibyte nil)
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1653 (while files
1654 (let* ((fil (car files))
1655 (p (+ archive-proper-file-start (car (aref fil 4))))
1656 (creator (char-after (+ p 5)))
1657 (oldmode (aref fil 3))
1658 (newval (archive-calc-mode oldmode newmode t))
1659 buffer-read-only)
1660 (cond ((memq creator '(2 3)) ; Unix + VMS
1661 (goto-char (+ p 40))
1662 (delete-char 2)
1663 (insert (logand newval 255) (lsh newval -8)))
380683ed 1664 ((memq creator '(0 5 6 7 10 11 15)) ; Dos etc.
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KH
1665 (goto-char (+ p 38))
1666 (insert (logior (logand (char-after (point)) 254)
1667 (logand (logxor 1 (lsh newval -7)) 1)))
1668 (delete-char 1))
1669 (t (message "Don't know how to change mode for this member"))))
1670 (setq files (cdr files))))))
1671;; -------------------------------------------------------------------------
1672;; Section: Zoo Archives
1673
1674(defun archive-zoo-summarize ()
1675 (let ((p (1+ (archive-l-e 25 4)))
1676 (maxlen 8)
1677 (totalsize 0)
1678 files
1679 visual)
1680 (while (and (string= "\334\247\304\375" (buffer-substring p (+ p 4)))
1681 (> (archive-l-e (+ p 6) 4) 0))
1682 (let* ((next (1+ (archive-l-e (+ p 6) 4)))
1683 (moddate (archive-l-e (+ p 14) 2))
1684 (modtime (archive-l-e (+ p 16) 2))
1685 (ucsize (archive-l-e (+ p 20) 4))
1686 (namefld (buffer-substring (+ p 38) (+ p 38 13)))
83c4abcb
RS
1687 (dirtype (char-after (+ p 4)))
1688 (lfnlen (if (= dirtype 2) (char-after (+ p 56)) 0))
1689 (ldirlen (if (= dirtype 2) (char-after (+ p 57)) 0))
9913653a 1690 (fnlen (or (string-match "\0" namefld) 13))
eb93d233
EZ
1691 (efnname (let ((str
1692 (concat
1693 (if (> ldirlen 0)
1694 (concat (buffer-substring
1695 (+ p 58 lfnlen)
1696 (+ p 58 lfnlen ldirlen -1))
1697 "/")
1698 "")
1699 (if (> lfnlen 0)
1700 (buffer-substring (+ p 58)
1701 (+ p 58 lfnlen -1))
1702 (substring namefld 0 fnlen)))))
1703 (if file-name-coding-system
1704 (decode-coding-string str file-name-coding-system)
1705 (string-as-multibyte str))))
83c4abcb 1706 (fiddle (and (= lfnlen 0) (string= efnname (upcase efnname))))
665211a3 1707 (ifnname (if fiddle (downcase efnname) efnname))
eb93d233 1708 (width (string-width ifnname))
665211a3
KH
1709 (text (format " %8d %-11s %-8s %s"
1710 ucsize
1711 (archive-dosdate moddate)
1712 (archive-dostime modtime)
1713 ifnname)))
0233a189 1714 (setq maxlen (max maxlen width)
665211a3
KH
1715 totalsize (+ totalsize ucsize)
1716 visual (cons (vector text
1717 (- (length text) (length ifnname))
1718 (length text))
1719 visual)
1720 files (cons (vector efnname ifnname fiddle nil (1- p))
1721 files)
1722 p next)))
1723 (goto-char (point-min))
1724 (let ((dash (concat "- -------- ----------- -------- "
1725 (make-string maxlen ?-)
1726 "\n")))
1727 (insert "M Length Date Time File\n"
1728 dash)
1729 (archive-summarize-files (nreverse visual))
1730 (insert dash
1731 (format " %8d %d file%s"
1732 totalsize
1733 (length files)
1734 (if (= 1 (length files)) "" "s"))
1735 "\n"))
1736 (apply 'vector (nreverse files))))
1737
1738(defun archive-zoo-extract (archive name)
1739 (archive-extract-by-stdout archive name archive-zoo-extract))
1740;; -------------------------------------------------------------------------
0d0587b9
RS
1741;; This line was a mistake; it is kept now for compatibility.
1742;; rms 15 Oct 98
665211a3
KH
1743(provide 'archive-mode)
1744
0d0587b9
RS
1745(provide 'arc-mode)
1746
1cd7adc6 1747;;; arc-mode.el ends here