1;;; arc-mode.el --- simple editing of archives 2 3;; Copyright (C) 1995, 1997, 1998, 2001, 2002, 2003, 2004, 4;; 2005, 2006, 2007 Free Software Foundation, Inc. 5 6;; Author: Morten Welinder <terra@gnu.org> 7;; Keywords: archives msdog editing major-mode 8;; Favourite-brand-of-beer: None, I hate beer. 9 10;; This file is part of GNU Emacs. 11 12;; GNU Emacs is free software; you can redistribute it and/or modify 13;; it under the terms of the GNU General Public License as published by 14;; the Free Software Foundation; either version 2, or (at your option) 15;; any later version. 16 17;; GNU Emacs is distributed in the hope that it will be useful, 18;; but WITHOUT ANY WARRANTY; without even the implied warranty of 19;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20;; GNU General Public License for more details. 21 22;; You should have received a copy of the GNU General Public License 23;; along with GNU Emacs; see the file COPYING. If not, write to the 24;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 25;; Boston, MA 02110-1301, USA. 26 27;;; Commentary: 28 29;; NAMING: "arc" is short for "archive" and does not refer specifically 30;; to files whose name end in ".arc" 31;; 32;; This code does not decode any files internally, although it does 33;; understand the directory level of the archives. For this reason, 34;; you should expect this code to need more fiddling than tar-mode.el 35;; (although it at present has fewer bugs :-) In particular, I have 36;; not tested this under Ms-Dog myself. 37;; ------------------------------------- 38;; INTERACTION: arc-mode.el should play together with 39;; 40;; * ange-ftp.el: Remote archives (i.e., ones that ange-ftp has brought 41;; to you) are handled by doing all updates on a local 42;; copy. When you make changes to a remote file the 43;; changes will first take effect when the archive buffer 44;; is saved. You will be warned about this. 45;; 46;; * dos-fns.el: (Part of Emacs 19). You get automatic ^M^J <--> ^J 47;; conversion. 48;; 49;; arc-mode.el does not work well with crypt++.el; for the archives as 50;; such this could be fixed (but wouldn't be useful) by declaring such 51;; archives to be "remote". For the members this is a general Emacs 52;; problem that 19.29's file formats may fix. 53;; ------------------------------------- 54;; ARCHIVE TYPES: Currently only the archives below are handled, but the 55;; structure for handling just about anything is in place. 56;; 57;; Arc Lzh Zip Zoo 58;; -------------------------------- 59;; View listing Intern Intern Intern Intern 60;; Extract member Y Y Y Y 61;; Save changed member Y Y Y Y 62;; Add new member N N N N 63;; Delete member Y Y Y Y 64;; Rename member Y Y N N 65;; Chmod - Y Y - 66;; Chown - Y - - 67;; Chgrp - Y - - 68;; 69;; Special thanks to Bill Brodie <wbrodie@panix.com> for very useful tips 70;; on the first released version of this package. 71;; 72;; This code is partly based on tar-mode.el from Emacs. 73;; ------------------------------------- 74;; ARCHIVE STRUCTURES: 75;; (This is mostly for myself.) 76;; 77;; ARC A series of (header,file). No interactions among members. 78;; 79;; LZH A series of (header,file). Headers are checksummed. No 80;; interaction among members. 81;; Headers come in three flavours called level 0, 1 and 2 headers. 82;; Level 2 header is free of DOS specific restrictions and most 83;; prevalently used. Also level 1 and 2 headers consist of base 84;; and extension headers. For more details see 85;; http://homepage1.nifty.com/dangan/en/Content/Program/Java/jLHA/Notes/Notes.html 86;; http://www.osirusoft.com/joejared/lzhformat.html 87;; 88;; ZIP A series of (lheader,fil) followed by a "central directory" 89;; which is a series of (cheader) followed by an end-of- 90;; central-dir record possibly followed by junk. The e-o-c-d 91;; links to c-d. cheaders link to lheaders which are basically 92;; cut-down versions of the cheaders. 93;; 94;; ZOO An archive header followed by a series of (header,file). 95;; Each member header points to the next. The archive is 96;; terminated by a bogus header with a zero next link. 97;; ------------------------------------- 98;; HOOKS: `foo' means one of the supported archive types. 99;; 100;; archive-mode-hook 101;; archive-foo-mode-hook 102;; archive-extract-hooks 103 104;;; Code: 105 106;; ------------------------------------------------------------------------- 107;; Section: Configuration. 108 109(defgroup archive nil 110 "Simple editing of archives." 111 :group 'data) 112 113(defgroup archive-arc nil 114 "ARC-specific options to archive." 115 :group 'archive) 116 117(defgroup archive-lzh nil 118 "LZH-specific options to archive." 119 :group 'archive) 120 121(defgroup archive-zip nil 122 "ZIP-specific options to archive." 123 :group 'archive) 124 125(defgroup archive-zoo nil 126 "ZOO-specific options to archive." 127 :group 'archive) 128 129(defcustom archive-tmpdir 130 ;; make-temp-name is safe here because we use this name 131 ;; to create a directory. 132 (make-temp-name 133 (expand-file-name (if (eq system-type 'ms-dos) "ar" "archive.tmp") 134 temporary-file-directory)) 135 "Directory for temporary files made by `arc-mode.el'." 136 :type 'directory 137 :group 'archive) 138 139(defcustom archive-remote-regexp "^/[^/:]*[^/:.]:" 140 "*Regexp recognizing archive files names that are not local. 141A non-local file is one whose file name is not proper outside Emacs. 142A local copy of the archive will be used when updating." 143 :type 'regexp 144 :group 'archive) 145 146(defcustom archive-extract-hooks nil 147 "*Hooks to run when an archive member has been extracted." 148 :type 'hook 149 :group 'archive) 150;; ------------------------------ 151;; Arc archive configuration 152 153;; We always go via a local file since there seems to be no reliable way 154;; to extract to stdout without junk getting added. 155(defcustom archive-arc-extract 156 '("arc" "x") 157 "*Program and its options to run in order to extract an arc file member. 158Extraction should happen to the current directory. Archive and member 159name will be added." 160 :type '(list (string :tag "Program") 161 (repeat :tag "Options" 162 :inline t 163 (string :format "%v"))) 164 :group 'archive-arc) 165 166(defcustom archive-arc-expunge 167 '("arc" "d") 168 "*Program and its options to run in order to delete arc file members. 169Archive and member names will be added." 170 :type '(list (string :tag "Program") 171 (repeat :tag "Options" 172 :inline t 173 (string :format "%v"))) 174 :group 'archive-arc) 175 176(defcustom archive-arc-write-file-member 177 '("arc" "u") 178 "*Program and its options to run in order to update an arc file member. 179Archive and member name will be added." 180 :type '(list (string :tag "Program") 181 (repeat :tag "Options" 182 :inline t 183 (string :format "%v"))) 184 :group 'archive-arc) 185;; ------------------------------ 186;; Lzh archive configuration 187 188(defcustom archive-lzh-extract 189 '("lha" "pq") 190 "*Program and its options to run in order to extract an lzh file member. 191Extraction should happen to standard output. Archive and member name will 192be added." 193 :type '(list (string :tag "Program") 194 (repeat :tag "Options" 195 :inline t 196 (string :format "%v"))) 197 :group 'archive-lzh) 198 199(defcustom archive-lzh-expunge 200 '("lha" "d") 201 "*Program and its options to run in order to delete lzh file members. 202Archive and member names will be added." 203 :type '(list (string :tag "Program") 204 (repeat :tag "Options" 205 :inline t 206 (string :format "%v"))) 207 :group 'archive-lzh) 208 209(defcustom archive-lzh-write-file-member 210 '("lha" "a") 211 "*Program and its options to run in order to update an lzh file member. 212Archive and member name will be added." 213 :type '(list (string :tag "Program") 214 (repeat :tag "Options" 215 :inline t 216 (string :format "%v"))) 217 :group 'archive-lzh) 218;; ------------------------------ 219;; Zip archive configuration 220 221(defcustom archive-zip-extract 222 (if (and (not (executable-find "unzip")) 223 (executable-find "pkunzip")) 224 '("pkunzip" "-e" "-o-") 225 '("unzip" "-qq" "-c")) 226 "*Program and its options to run in order to extract a zip file member. 227Extraction should happen to standard output. Archive and member name will 228be added." 229 :type '(list (string :tag "Program") 230 (repeat :tag "Options" 231 :inline t 232 (string :format "%v"))) 233 :group 'archive-zip) 234 235;; For several reasons the latter behaviour is not desirable in general. 236;; (1) It uses more disk space. (2) Error checking is worse or non- 237;; existent. (3) It tends to do funny things with other systems' file 238;; names. 239 240(defcustom archive-zip-expunge 241 (if (and (not (executable-find "zip")) 242 (executable-find "pkzip")) 243 '("pkzip" "-d") 244 '("zip" "-d" "-q")) 245 "*Program and its options to run in order to delete zip file members. 246Archive and member names will be added." 247 :type '(list (string :tag "Program") 248 (repeat :tag "Options" 249 :inline t 250 (string :format "%v"))) 251 :group 'archive-zip) 252 253(defcustom archive-zip-update 254 (if (and (not (executable-find "zip")) 255 (executable-find "pkzip")) 256 '("pkzip" "-u" "-P") 257 '("zip" "-q")) 258 "*Program and its options to run in order to update a zip file member. 259Options should ensure that specified directory will be put into the zip 260file. Archive 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-update-case 268 (if (and (not (executable-find "zip")) 269 (executable-find "pkzip")) 270 '("pkzip" "-u" "-P") 271 '("zip" "-q" "-k")) 272 "*Program and its options to run in order to update a case fiddled zip member. 273Options should ensure that specified directory will be put into the zip file. 274Archive and member name will be added." 275 :type '(list (string :tag "Program") 276 (repeat :tag "Options" 277 :inline t 278 (string :format "%v"))) 279 :group 'archive-zip) 280 281(defcustom archive-zip-case-fiddle t 282 "*If non-nil then zip file members may be down-cased. 283This case fiddling will only happen for members created by a system 284that uses caseless file names." 285 :type 'boolean 286 :group 'archive-zip) 287;; ------------------------------ 288;; Zoo archive configuration 289 290(defcustom archive-zoo-extract 291 '("zoo" "xpq") 292 "*Program and its options to run in order to extract a zoo file member. 293Extraction should happen to standard output. Archive and member name will 294be added." 295 :type '(list (string :tag "Program") 296 (repeat :tag "Options" 297 :inline t 298 (string :format "%v"))) 299 :group 'archive-zoo) 300 301(defcustom archive-zoo-expunge 302 '("zoo" "DqPP") 303 "*Program and its options to run in order to delete zoo file members. 304Archive and member names will be added." 305 :type '(list (string :tag "Program") 306 (repeat :tag "Options" 307 :inline t 308 (string :format "%v"))) 309 :group 'archive-zoo) 310 311(defcustom archive-zoo-write-file-member 312 '("zoo" "a") 313 "*Program and its options to run in order to update a zoo file member. 314Archive and member name will be added." 315 :type '(list (string :tag "Program") 316 (repeat :tag "Options" 317 :inline t 318 (string :format "%v"))) 319 :group 'archive-zoo) 320;; ------------------------------------------------------------------------- 321;; Section: Variables 322 323(defvar archive-subtype nil "Symbol describing archive type.") 324(defvar archive-file-list-start nil "Position of first contents line.") 325(defvar archive-file-list-end nil "Position just after last contents line.") 326(defvar archive-proper-file-start nil "Position of real archive's start.") 327(defvar archive-read-only nil "Non-nil if the archive is read-only on disk.") 328(defvar archive-local-name nil "Name of local copy of remote archive.") 329(defvar archive-mode-map 330 (let ((map (make-keymap))) 331 (suppress-keymap map) 332 (define-key map " " 'archive-next-line) 333 (define-key map "a" 'archive-alternate-display) 334 ;;(define-key map "c" 'archive-copy) 335 (define-key map "d" 'archive-flag-deleted) 336 (define-key map "\C-d" 'archive-flag-deleted) 337 (define-key map "e" 'archive-extract) 338 (define-key map "f" 'archive-extract) 339 (define-key map "\C-m" 'archive-extract) 340 (define-key map "g" 'revert-buffer) 341 (define-key map "h" 'describe-mode) 342 (define-key map "m" 'archive-mark) 343 (define-key map "n" 'archive-next-line) 344 (define-key map "\C-n" 'archive-next-line) 345 (define-key map [down] 'archive-next-line) 346 (define-key map "o" 'archive-extract-other-window) 347 (define-key map "p" 'archive-previous-line) 348 (define-key map "q" 'quit-window) 349 (define-key map "\C-p" 'archive-previous-line) 350 (define-key map [up] 'archive-previous-line) 351 (define-key map "r" 'archive-rename-entry) 352 (define-key map "u" 'archive-unflag) 353 (define-key map "\M-\C-?" 'archive-unmark-all-files) 354 (define-key map "v" 'archive-view) 355 (define-key map "x" 'archive-expunge) 356 (define-key map "\177" 'archive-unflag-backwards) 357 (define-key map "E" 'archive-extract-other-window) 358 (define-key map "M" 'archive-chmod-entry) 359 (define-key map "G" 'archive-chgrp-entry) 360 (define-key map "O" 'archive-chown-entry) 361 362 (if (fboundp 'command-remapping) 363 (progn 364 (define-key map [remap advertised-undo] 'archive-undo) 365 (define-key map [remap undo] 'archive-undo)) 366 (substitute-key-definition 'advertised-undo 'archive-undo map global-map) 367 (substitute-key-definition 'undo 'archive-undo map global-map)) 368 369 (define-key map 370 (if (featurep 'xemacs) 'button2 [mouse-2]) 'archive-extract) 371 372 (if (featurep 'xemacs) 373 () ; out of luck 374 375 (define-key map [menu-bar immediate] 376 (cons "Immediate" (make-sparse-keymap "Immediate"))) 377 (define-key map [menu-bar immediate alternate] 378 '(menu-item "Alternate Display" archive-alternate-display 379 :enable (boundp (archive-name "alternate-display")) 380 :help "Toggle alternate file info display")) 381 (define-key map [menu-bar immediate view] 382 '(menu-item "View This File" archive-view 383 :help "Display file at cursor in View Mode")) 384 (define-key map [menu-bar immediate display] 385 '(menu-item "Display in Other Window" archive-display-other-window 386 :help "Display file at cursor in another window")) 387 (define-key map [menu-bar immediate find-file-other-window] 388 '(menu-item "Find in Other Window" archive-extract-other-window 389 :help "Edit file at cursor in another window")) 390 (define-key map [menu-bar immediate find-file] 391 '(menu-item "Find This File" archive-extract 392 :help "Extract file at cursor and edit it")) 393 394 (define-key map [menu-bar mark] 395 (cons "Mark" (make-sparse-keymap "Mark"))) 396 (define-key map [menu-bar mark unmark-all] 397 '(menu-item "Unmark All" archive-unmark-all-files 398 :help "Unmark all marked files")) 399 (define-key map [menu-bar mark deletion] 400 '(menu-item "Flag" archive-flag-deleted 401 :help "Flag file at cursor for deletion")) 402 (define-key map [menu-bar mark unmark] 403 '(menu-item "Unflag" archive-unflag 404 :help "Unmark file at cursor")) 405 (define-key map [menu-bar mark mark] 406 '(menu-item "Mark" archive-mark 407 :help "Mark file at cursor")) 408 409 (define-key map [menu-bar operate] 410 (cons "Operate" (make-sparse-keymap "Operate"))) 411 (define-key map [menu-bar operate chown] 412 '(menu-item "Change Owner..." archive-chown-entry 413 :enable (fboundp (archive-name "chown-entry")) 414 :help "Change owner of marked files")) 415 (define-key map [menu-bar operate chgrp] 416 '(menu-item "Change Group..." archive-chgrp-entry 417 :enable (fboundp (archive-name "chgrp-entry")) 418 :help "Change group ownership of marked files")) 419 (define-key map [menu-bar operate chmod] 420 '(menu-item "Change Mode..." archive-chmod-entry 421 :enable (fboundp (archive-name "chmod-entry")) 422 :help "Change mode (permissions) of marked files")) 423 (define-key map [menu-bar operate rename] 424 '(menu-item "Rename to..." archive-rename-entry 425 :enable (fboundp (archive-name "rename-entry")) 426 :help "Rename marked files")) 427 ;;(define-key map [menu-bar operate copy] 428 ;; '(menu-item "Copy to..." archive-copy)) 429 (define-key map [menu-bar operate expunge] 430 '(menu-item "Expunge Marked Files" archive-expunge 431 :help "Delete all flagged files from archive")) 432 map)) 433 "Local keymap for archive mode listings.") 434(defvar archive-file-name-indent nil "Column where file names start.") 435 436(defvar archive-remote nil "Non-nil if the archive is outside file system.") 437(make-variable-buffer-local 'archive-remote) 438(put 'archive-remote 'permanent-local t) 439 440(defvar archive-member-coding-system nil "Coding-system of archive member.") 441(make-variable-buffer-local 'archive-member-coding-system) 442 443(defvar archive-alternate-display nil 444 "Non-nil when alternate information is shown.") 445(make-variable-buffer-local 'archive-alternate-display) 446(put 'archive-alternate-display 'permanent-local t) 447 448(defvar archive-superior-buffer nil "In archive members, points to archive.") 449(put 'archive-superior-buffer 'permanent-local t) 450 451(defvar archive-subfile-mode nil "Non-nil in archive member buffers.") 452(make-variable-buffer-local 'archive-subfile-mode) 453(put 'archive-subfile-mode 'permanent-local t) 454 455(defvar archive-files nil 456 "Vector of file descriptors. 457Each descriptor is a vector of the form 458 [EXT-FILE-NAME INT-FILE-NAME CASE-FIDDLED MODE ...]") 459(make-variable-buffer-local 'archive-files) 460 461;; ------------------------------------------------------------------------- 462;; Section: Support functions. 463 464(defsubst archive-name (suffix) 465 (intern (concat "archive-" (symbol-name archive-subtype) "-" suffix))) 466 467(defun archive-l-e (str &optional len float) 468 "Convert little endian string/vector STR to integer. 469Alternatively, STR may be a buffer position in the current buffer 470in which case a second argument, length LEN, should be supplied. 471FLOAT, if non-nil, means generate and return a float instead of an integer 472\(use this for numbers that can overflow the Emacs integer)." 473 (if (stringp str) 474 (setq len (length str)) 475 (setq str (buffer-substring str (+ str len)))) 476 (let ((result 0) 477 (i 0)) 478 (while (< i len) 479 (setq i (1+ i) 480 result (+ (if float (* result 256.0) (ash result 8)) 481 (aref str (- len i))))) 482 result)) 483 484(defun archive-int-to-mode (mode) 485 "Turn an integer like 0700 (i.e., 448) into a mode string like -rwx------." 486 ;; FIXME: merge with tar-grind-file-mode. 487 (string 488 (if (zerop (logand 8192 mode)) 489 (if (zerop (logand 16384 mode)) ?- ?d) 490 ?c) ; completeness 491 (if (zerop (logand 256 mode)) ?- ?r) 492 (if (zerop (logand 128 mode)) ?- ?w) 493 (if (zerop (logand 64 mode)) 494 (if (zerop (logand 1024 mode)) ?- ?S) 495 (if (zerop (logand 1024 mode)) ?x ?s)) 496 (if (zerop (logand 32 mode)) ?- ?r) 497 (if (zerop (logand 16 mode)) ?- ?w) 498 (if (zerop (logand 8 mode)) 499 (if (zerop (logand 2048 mode)) ?- ?S) 500 (if (zerop (logand 2048 mode)) ?x ?s)) 501 (if (zerop (logand 4 mode)) ?- ?r) 502 (if (zerop (logand 2 mode)) ?- ?w) 503 (if (zerop (logand 1 mode)) ?- ?x))) 504 505(defun archive-calc-mode (oldmode newmode &optional error) 506 "From the integer OLDMODE and the string NEWMODE calculate a new file mode. 507NEWMODE may be an octal number including a leading zero in which case it 508will become the new mode.\n 509NEWMODE may also be a relative specification like \"og-rwx\" in which case 510OLDMODE will be modified accordingly just like chmod(2) would have done.\n 511If optional third argument ERROR is non-nil an error will be signaled if 512the mode is invalid. If ERROR is nil then nil will be returned." 513 (cond ((string-match "^0[0-7]*$" newmode) 514 (let ((result 0) 515 (len (length newmode)) 516 (i 1)) 517 (while (< i len) 518 (setq result (+ (lsh result 3) (aref newmode i) (- ?0)) 519 i (1+ i))) 520 (logior (logand oldmode 65024) result))) 521 ((string-match "^\\([agou]+\\)\\([---+=]\\)\\([rwxst]+\\)$" newmode) 522 (let ((who 0) 523 (result oldmode) 524 (op (aref newmode (match-beginning 2))) 525 (bits 0) 526 (i (match-beginning 3))) 527 (while (< i (match-end 3)) 528 (let ((rwx (aref newmode i))) 529 (setq bits (logior bits (cond ((= rwx ?r) 292) 530 ((= rwx ?w) 146) 531 ((= rwx ?x) 73) 532 ((= rwx ?s) 3072) 533 ((= rwx ?t) 512))) 534 i (1+ i)))) 535 (while (< who (match-end 1)) 536 (let* ((whoc (aref newmode who)) 537 (whomask (cond ((= whoc ?a) 4095) 538 ((= whoc ?u) 1472) 539 ((= whoc ?g) 2104) 540 ((= whoc ?o) 7)))) 541 (if (= op ?=) 542 (setq result (logand result (lognot whomask)))) 543 (if (= op ?-) 544 (setq result (logand result (lognot (logand whomask bits)))) 545 (setq result (logior result (logand whomask bits))))) 546 (setq who (1+ who))) 547 result)) 548 (t 549 (if error 550 (error "Invalid mode specification: %s" newmode))))) 551 552(defun archive-dosdate (date) 553 "Stringify dos packed DATE record." 554 (let ((year (+ 1980 (logand (ash date -9) 127))) 555 (month (logand (ash date -5) 15)) 556 (day (logand date 31))) 557 (if (or (> month 12) (< month 1)) 558 "" 559 (format "%2d-%s-%d" 560 day 561 (aref ["Jan" "Feb" "Mar" "Apr" "May" "Jun" 562 "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"] (1- month)) 563 year)))) 564 565(defun archive-dostime (time) 566 "Stringify dos packed TIME record." 567 (let ((hour (logand (ash time -11) 31)) 568 (minute (logand (ash time -5) 63)) 569 (second (* 2 (logand time 31)))) ; 2 seconds resolution 570 (format "%02d:%02d:%02d" hour minute second))) 571 572(defun archive-unixdate (low high) 573 "Stringify Unix (LOW HIGH) date." 574 (let ((str (current-time-string (cons high low)))) 575 (format "%s-%s-%s" 576 (substring str 8 10) 577 (substring str 4 7) 578 (substring str 20 24)))) 579 580(defun archive-unixtime (low high) 581 "Stringify Unix (LOW HIGH) time." 582 (let ((str (current-time-string (cons high low)))) 583 (substring str 11 19))) 584 585(defun archive-get-lineno () 586 (if (>= (point) archive-file-list-start) 587 (count-lines archive-file-list-start 588 (save-excursion (beginning-of-line) (point))) 589 0)) 590 591(defun archive-get-descr (&optional noerror) 592 "Return the descriptor vector for file at point. 593Does not signal an error if optional argument NOERROR is non-nil." 594 (let ((no (archive-get-lineno))) 595 (if (and (>= (point) archive-file-list-start) 596 (< no (length archive-files))) 597 (let ((item (aref archive-files no))) 598 (if (vectorp item) 599 item 600 (if (not noerror) 601 (error "Entry is not a regular member of the archive")))) 602 (if (not noerror) 603 (error "Line does not describe a member of the archive"))))) 604;; ------------------------------------------------------------------------- 605;; Section: the mode definition 606 607;;;###autoload 608(defun archive-mode (&optional force) 609 "Major mode for viewing an archive file in a dired-like way. 610You can move around using the usual cursor motion commands. 611Letters no longer insert themselves. 612Type `e' to pull a file out of the archive and into its own buffer; 613or click mouse-2 on the file's line in the archive mode buffer. 614 615If you edit a sub-file of this archive (as with the `e' command) and 616save it, the contents of that buffer will be saved back into the 617archive. 618 619\\{archive-mode-map}" 620 ;; This is not interactive because you shouldn't be turning this 621 ;; mode on and off. You can corrupt things that way. 622 (if (zerop (buffer-size)) 623 ;; At present we cannot create archives from scratch 624 (funcall default-major-mode) 625 (if (and (not force) archive-files) nil 626 (let* ((type (archive-find-type)) 627 (typename (capitalize (symbol-name type)))) 628 (kill-all-local-variables) 629 (make-local-variable 'archive-subtype) 630 (setq archive-subtype type) 631 632 ;; Buffer contains treated image of file before the file contents 633 (make-local-variable 'revert-buffer-function) 634 (setq revert-buffer-function 'archive-mode-revert) 635 (auto-save-mode 0) 636 637 ;; Remote archives are not written by a hook. 638 (if archive-remote nil 639 (add-hook 'write-contents-functions 'archive-write-file nil t)) 640 641 (make-local-variable 'require-final-newline) 642 (setq require-final-newline nil) 643 (make-local-variable 'local-enable-local-variables) 644 (setq local-enable-local-variables nil) 645 646 ;; Prevent loss of data when saving the file. 647 (make-local-variable 'file-precious-flag) 648 (setq file-precious-flag t) 649 650 (make-local-variable 'archive-read-only) 651 ;; Archives which are inside other archives and whose 652 ;; names are invalid for this OS, can't be written. 653 (setq archive-read-only 654 (or (not (file-writable-p (buffer-file-name))) 655 (and archive-subfile-mode 656 (string-match file-name-invalid-regexp 657 (aref archive-subfile-mode 0))))) 658 659 ;; Should we use a local copy when accessing from outside Emacs? 660 (make-local-variable 'archive-local-name) 661 662 ;; An archive can contain another archive whose name is invalid 663 ;; on local filesystem. Treat such archives as remote. 664 (or archive-remote 665 (setq archive-remote 666 (or (string-match archive-remote-regexp (buffer-file-name)) 667 (string-match file-name-invalid-regexp 668 (buffer-file-name))))) 669 670 (setq major-mode 'archive-mode) 671 (setq mode-name (concat typename "-Archive")) 672 ;; Run archive-foo-mode-hook and archive-mode-hook 673 (run-mode-hooks (archive-name "mode-hook") 'archive-mode-hook) 674 (use-local-map archive-mode-map)) 675 676 (make-local-variable 'archive-proper-file-start) 677 (make-local-variable 'archive-file-list-start) 678 (make-local-variable 'archive-file-list-end) 679 (make-local-variable 'archive-file-name-indent) 680 (archive-summarize nil) 681 (setq buffer-read-only t)))) 682 683;; Archive mode is suitable only for specially formatted data. 684(put 'archive-mode 'mode-class 'special) 685 686(let ((item1 '(archive-subfile-mode " Archive"))) 687 (or (member item1 minor-mode-alist) 688 (setq minor-mode-alist (cons item1 minor-mode-alist)))) 689;; ------------------------------------------------------------------------- 690(defun archive-find-type () 691 (widen) 692 (goto-char (point-min)) 693 ;; The funny [] here make it unlikely that the .elc file will be treated 694 ;; as an archive by other software. 695 (let (case-fold-search) 696 (cond ((looking-at "[P]K\003\004") 'zip) 697 ((looking-at "..-l[hz][0-9ds]-") 'lzh) 698 ((looking-at "....................[\334]\247\304\375") 'zoo) 699 ((and (looking-at "\C-z") ; signature too simple, IMHO 700 (string-match "\\.[aA][rR][cC]$" 701 (or buffer-file-name (buffer-name)))) 702 'arc) 703 ;; This pattern modelled on the BSD/GNU+Linux `file' command. 704 ;; Have seen capital "LHA's", and file has lower case "LHa's" too. 705 ;; Note this regexp is also in archive-exe-p. 706 ((looking-at "MZ\\(.\\|\n\\)\\{34\\}LH[aA]'s SFX ") 'lzh-exe) 707 (t (error "Buffer format not recognized"))))) 708;; ------------------------------------------------------------------------- 709(defun archive-summarize (&optional shut-up) 710 "Parse the contents of the archive file in the current buffer. 711Place a dired-like listing on the front; 712then narrow to it, so that only that listing 713is visible (and the real data of the buffer is hidden). 714Optional argument SHUT-UP, if non-nil, means don't print messages 715when parsing the archive." 716 (widen) 717 (set-buffer-multibyte nil) 718 (let ((inhibit-read-only t)) 719 (or shut-up 720 (message "Parsing archive file...")) 721 (buffer-disable-undo (current-buffer)) 722 (setq archive-files (funcall (archive-name "summarize"))) 723 (or shut-up 724 (message "Parsing archive file...done.")) 725 (setq archive-proper-file-start (point-marker)) 726 (narrow-to-region (point-min) (point)) 727 (set-buffer-modified-p nil) 728 (buffer-enable-undo)) 729 (goto-char archive-file-list-start) 730 (archive-next-line 0)) 731 732(defun archive-resummarize () 733 "Recreate the contents listing of an archive." 734 (let ((modified (buffer-modified-p)) 735 (no (archive-get-lineno)) 736 (inhibit-read-only t)) 737 (widen) 738 (delete-region (point-min) archive-proper-file-start) 739 (archive-summarize t) 740 (restore-buffer-modified-p modified) 741 (goto-char archive-file-list-start) 742 (archive-next-line no))) 743 744(defun archive-summarize-files (files) 745 "Insert a description of a list of files annotated with proper mouse face." 746 (setq archive-file-list-start (point-marker)) 747 (setq archive-file-name-indent (if files (aref (car files) 1) 0)) 748 ;; We don't want to do an insert for each element since that takes too 749 ;; long when the archive -- which has to be moved in memory -- is large. 750 (insert 751 (apply 752 (function concat) 753 (mapcar 754 (lambda (fil) 755 ;; Using `concat' here copies the text also, so we can add 756 ;; properties without problems. 757 (let ((text (concat (aref fil 0) "\n"))) 758 (if (featurep 'xemacs) 759 () ; out of luck 760 (add-text-properties 761 (aref fil 1) (aref fil 2) 762 '(mouse-face highlight 763 help-echo "mouse-2: extract this file into a buffer") 764 text)) 765 text)) 766 files))) 767 (setq archive-file-list-end (point-marker))) 768 769(defun archive-alternate-display () 770 "Toggle alternative display. 771To avoid very long lines archive mode does not show all information. 772This function changes the set of information shown for each files." 773 (interactive) 774 (setq archive-alternate-display (not archive-alternate-display)) 775 (archive-resummarize)) 776;; ------------------------------------------------------------------------- 777;; Section: Local archive copy handling 778 779(defun archive-unique-fname (fname dir) 780 "Make sure a file FNAME can be created uniquely in directory DIR. 781 782If FNAME can be uniquely created in DIR, it is returned unaltered. 783If FNAME is something our underlying filesystem can't grok, or if another 784file by that name already exists in DIR, a unique new name is generated 785using `make-temp-file', and the generated name is returned." 786 (let ((fullname (expand-file-name fname dir)) 787 (alien (string-match file-name-invalid-regexp fname))) 788 (if (or alien (file-exists-p fullname)) 789 (make-temp-file 790 (expand-file-name 791 (if (if (fboundp 'msdos-long-file-names) 792 (not (msdos-long-file-names))) 793 "am" 794 "arc-mode.") 795 dir)) 796 fullname))) 797 798(defun archive-maybe-copy (archive) 799 (let ((coding-system-for-write 'no-conversion)) 800 (if archive-remote 801 (let ((start (point-max)) 802 ;; Sometimes ARCHIVE is invalid while its actual name, as 803 ;; recorded in its parent archive, is not. For example, an 804 ;; archive bar.zip inside another archive foo.zip gets a name 805 ;; "foo.zip:bar.zip", which is invalid on DOS/Windows. 806 ;; So use the actual name if available. 807 (archive-name 808 (or (and archive-subfile-mode (aref archive-subfile-mode 0)) 809 archive))) 810 (setq archive-local-name 811 (archive-unique-fname archive-name archive-tmpdir)) 812 ;; Maked sure all the leading directories in 813 ;; archive-local-name exist under archive-tmpdir, so that 814 ;; the directory structure recorded in the archive is 815 ;; reconstructed in the temporary directory. 816 (make-directory (file-name-directory archive-local-name) t) 817 (save-restriction 818 (widen) 819 (write-region start (point-max) archive-local-name nil 'nomessage)) 820 archive-local-name) 821 (if (buffer-modified-p) (save-buffer)) 822 archive))) 823 824(defun archive-maybe-update (unchanged) 825 (if archive-remote 826 (let ((name archive-local-name) 827 (modified (buffer-modified-p)) 828 (coding-system-for-read 'no-conversion) 829 (lno (archive-get-lineno)) 830 (inhibit-read-only t)) 831 (if unchanged nil 832 (setq archive-files nil) 833 (erase-buffer) 834 (insert-file-contents name) 835 (archive-mode t) 836 (goto-char archive-file-list-start) 837 (archive-next-line lno)) 838 (archive-delete-local name) 839 (if (not unchanged) 840 (message 841 "Buffer `%s' must be saved for changes to take effect" 842 (buffer-name (current-buffer)))) 843 (set-buffer-modified-p (or modified (not unchanged)))))) 844 845(defun archive-delete-local (name) 846 "Delete file NAME and its parents up to and including `archive-tmpdir'." 847 (let ((again t) 848 (top (directory-file-name (file-name-as-directory archive-tmpdir)))) 849 (condition-case nil 850 (delete-file name) 851 (error nil)) 852 (while again 853 (setq name (directory-file-name (file-name-directory name))) 854 (condition-case nil 855 (delete-directory name) 856 (error nil)) 857 (if (string= name top) (setq again nil))))) 858;; ------------------------------------------------------------------------- 859;; Section: Member extraction 860 861(defun archive-file-name-handler (op &rest args) 862 (or (eq op 'file-exists-p) 863 (let ((file-name-handler-alist nil)) 864 (apply op args)))) 865 866(defun archive-set-buffer-as-visiting-file (filename) 867 "Set the current buffer as if it were visiting FILENAME." 868 (save-excursion 869 (goto-char (point-min)) 870 (let ((buffer-undo-list t) 871 (coding 872 (or coding-system-for-read 873 (and set-auto-coding-function 874 (save-excursion 875 (funcall set-auto-coding-function 876 filename (- (point-max) (point-min))))) 877 ;; dos-w32.el defines the function 878 ;; find-buffer-file-type-coding-system for DOS/Windows 879 ;; systems which preserves the coding-system of existing files. 880 ;; (That function is called via file-coding-system-alist.) 881 ;; Here, we want it to act as if the extracted file existed. 882 ;; The following let-binding of file-name-handler-alist forces 883 ;; find-file-not-found-set-buffer-file-coding-system to ignore 884 ;; the file's name (see dos-w32.el). 885 (let ((file-name-handler-alist 886 '(("" . archive-file-name-handler)))) 887 (car (find-operation-coding-system 888 'insert-file-contents 889 (cons filename (current-buffer)) t)))))) 890 (if (and (not coding-system-for-read) 891 (not enable-multibyte-characters)) 892 (setq coding 893 (coding-system-change-text-conversion coding 'raw-text))) 894 (if (and coding 895 (not (eq coding 'no-conversion))) 896 (decode-coding-region (point-min) (point-max) coding) 897 (setq last-coding-system-used coding)) 898 (set-buffer-modified-p nil) 899 (kill-local-variable 'buffer-file-coding-system) 900 (after-insert-file-set-coding (- (point-max) (point-min)))))) 901 902(define-obsolete-function-alias 'archive-mouse-extract 'archive-extract "22.1") 903 904(defun archive-extract (&optional other-window-p event) 905 "In archive mode, extract this entry of the archive into its own buffer." 906 (interactive (list nil last-input-event)) 907 (if event (posn-set-point (event-end event))) 908 (let* ((view-p (eq other-window-p 'view)) 909 (descr (archive-get-descr)) 910 (ename (aref descr 0)) 911 (iname (aref descr 1)) 912 (archive-buffer (current-buffer)) 913 (arcdir default-directory) 914 (archive (buffer-file-name)) 915 (arcname (file-name-nondirectory archive)) 916 (bufname (concat (file-name-nondirectory iname) " (" arcname ")")) 917 (extractor (archive-name "extract")) 918 ;; Members with file names which aren't valid for the 919 ;; underlying filesystem, are treated as read-only. 920 (read-only-p (or archive-read-only 921 view-p 922 (string-match file-name-invalid-regexp ename))) 923 (arcfilename (expand-file-name (concat arcname ":" iname))) 924 (buffer (get-buffer bufname)) 925 (just-created nil)) 926 (if (and buffer 927 (string= (buffer-file-name buffer) arcfilename)) 928 nil 929 (setq archive (archive-maybe-copy archive)) 930 (setq bufname (generate-new-buffer-name bufname)) 931 (setq buffer (get-buffer-create bufname)) 932 (setq just-created t) 933 (with-current-buffer buffer 934 (setq buffer-file-name arcfilename) 935 (setq buffer-file-truename 936 (abbreviate-file-name buffer-file-name)) 937 ;; Set the default-directory to the dir of the superior buffer. 938 (setq default-directory arcdir) 939 (make-local-variable 'archive-superior-buffer) 940 (setq archive-superior-buffer archive-buffer) 941 (add-hook 'write-file-functions 'archive-write-file-member nil t) 942 (setq archive-subfile-mode descr) 943 (if (and 944 (null 945 (let (;; We may have to encode file name arguement for 946 ;; external programs. 947 (coding-system-for-write 948 (and enable-multibyte-characters 949 file-name-coding-system)) 950 ;; We read an archive member by no-conversion at 951 ;; first, then decode appropriately by calling 952 ;; archive-set-buffer-as-visiting-file later. 953 (coding-system-for-read 'no-conversion)) 954 (condition-case err 955 (if (fboundp extractor) 956 (funcall extractor archive ename) 957 (archive-*-extract archive ename 958 (symbol-value extractor))) 959 (error 960 (ding (message "%s" (error-message-string err))) 961 nil)))) 962 just-created) 963 (progn 964 (set-buffer-modified-p nil) 965 (kill-buffer buffer)) 966 (archive-set-buffer-as-visiting-file ename) 967 (goto-char (point-min)) 968 (rename-buffer bufname) 969 (setq buffer-read-only read-only-p) 970 (setq buffer-undo-list nil) 971 (set-buffer-modified-p nil) 972 (setq buffer-saved-size (buffer-size)) 973 (normal-mode) 974 ;; Just in case an archive occurs inside another archive. 975 (when (derived-mode-p 'archive-mode) 976 (setq archive-remote t) 977 (if read-only-p (setq archive-read-only t)) 978 ;; We will write out the archive ourselves if it is 979 ;; part of another archive. 980 (remove-hook 'write-contents-functions 'archive-write-file t)) 981 (run-hooks 'archive-extract-hooks) 982 (if archive-read-only 983 (message "Note: altering this archive is not implemented.")))) 984 (archive-maybe-update t)) 985 (or (not (buffer-name buffer)) 986 (cond 987 (view-p (view-buffer buffer (and just-created 'kill-buffer))) 988 ((eq other-window-p 'display) (display-buffer buffer)) 989 (other-window-p (switch-to-buffer-other-window buffer)) 990 (t (switch-to-buffer buffer)))))) 991 992(defun archive-*-extract (archive name command) 993 (let* ((default-directory (file-name-as-directory archive-tmpdir)) 994 (tmpfile (expand-file-name (file-name-nondirectory name) 995 default-directory)) 996 exit-status success) 997 (make-directory (directory-file-name default-directory) t) 998 (setq exit-status 999 (apply 'call-process 1000 (car command) 1001 nil 1002 nil 1003 nil 1004 (append (cdr command) (list archive name)))) 1005 (cond ((and (numberp exit-status) (= exit-status 0)) 1006 (if (not (file-exists-p tmpfile)) 1007 (ding (message "`%s': no such file or directory" tmpfile)) 1008 (insert-file-contents tmpfile) 1009 (setq success t))) 1010 ((numberp exit-status) 1011 (ding 1012 (message "`%s' exited with status %d" (car command) exit-status))) 1013 ((stringp exit-status) 1014 (ding (message "`%s' aborted: %s" (car command) exit-status))) 1015 (t 1016 (ding (message "`%s' failed" (car command))))) 1017 (archive-delete-local tmpfile) 1018 success)) 1019 1020(defun archive-extract-by-stdout (archive name command) 1021 (apply 'call-process 1022 (car command) 1023 nil 1024 t 1025 nil 1026 (append (cdr command) (list archive name)))) 1027 1028(defun archive-extract-other-window () 1029 "In archive mode, find this member in another window." 1030 (interactive) 1031 (archive-extract t)) 1032 1033(defun archive-display-other-window () 1034 "In archive mode, display this member in another window." 1035 (interactive) 1036 (archive-extract 'display)) 1037 1038(defun archive-view () 1039 "In archive mode, view the member on this line." 1040 (interactive) 1041 (archive-extract 'view)) 1042 1043(defun archive-add-new-member (arcbuf name) 1044 "Add current buffer to the archive in ARCBUF naming it NAME." 1045 (interactive 1046 (list (get-buffer 1047 (read-buffer "Buffer containing archive: " 1048 ;; Find first archive buffer and suggest that 1049 (let ((bufs (buffer-list))) 1050 (while (and bufs 1051 (not (with-current-buffer (car bufs) 1052 (derived-mode-p 'archive-mode)))) 1053 (setq bufs (cdr bufs))) 1054 (if bufs 1055 (car bufs) 1056 (error "There are no archive buffers"))) 1057 t)) 1058 (read-string "File name in archive: " 1059 (if buffer-file-name 1060 (file-name-nondirectory buffer-file-name) 1061 "")))) 1062 (with-current-buffer arcbuf 1063 (or (eq major-mode 'archive-mode) 1064 (error "Buffer is not an archive buffer")) 1065 (if archive-read-only 1066 (error "Archive is read-only"))) 1067 (if (eq arcbuf (current-buffer)) 1068 (error "An archive buffer cannot be added to itself")) 1069 (if (string= name "") 1070 (error "Archive members may not be given empty names")) 1071 (let ((func (with-current-buffer arcbuf 1072 (archive-name "add-new-member"))) 1073 (membuf (current-buffer))) 1074 (if (fboundp func) 1075 (with-current-buffer arcbuf 1076 (funcall func buffer-file-name membuf name)) 1077 (error "Adding a new member is not supported for this archive type")))) 1078;; ------------------------------------------------------------------------- 1079;; Section: IO stuff 1080 1081(defun archive-write-file-member () 1082 (save-excursion 1083 (save-restriction 1084 (message "Updating archive...") 1085 (widen) 1086 (let ((writer (with-current-buffer archive-superior-buffer 1087 (archive-name "write-file-member"))) 1088 (archive (with-current-buffer archive-superior-buffer 1089 (archive-maybe-copy (buffer-file-name))))) 1090 (if (fboundp writer) 1091 (funcall writer archive archive-subfile-mode) 1092 (archive-*-write-file-member archive 1093 archive-subfile-mode 1094 (symbol-value writer))) 1095 (set-buffer-modified-p nil) 1096 (message "Updating archive...done")) 1097 (set-buffer archive-superior-buffer) 1098 (if (not archive-remote) (revert-buffer) (archive-maybe-update nil)))) 1099 ;; Restore the value of last-coding-system-used, so that basic-save-buffer 1100 ;; won't reset the coding-system of this archive member. 1101 (if (local-variable-p 'archive-member-coding-system) 1102 (setq last-coding-system-used archive-member-coding-system)) 1103 t) 1104 1105(defun archive-*-write-file-member (archive descr command) 1106 (let* ((ename (aref descr 0)) 1107 (tmpfile (expand-file-name ename archive-tmpdir)) 1108 (top (directory-file-name (file-name-as-directory archive-tmpdir))) 1109 (default-directory (file-name-as-directory top))) 1110 (unwind-protect 1111 (progn 1112 (make-directory (file-name-directory tmpfile) t) 1113 ;; If the member is itself an archive, write it without 1114 ;; the dired-like listing we created. 1115 (if (eq major-mode 'archive-mode) 1116 (archive-write-file tmpfile) 1117 (write-region (point-min) (point-max) tmpfile nil 'nomessage)) 1118 ;; basic-save-buffer needs last-coding-system-used to have 1119 ;; the value used to write the file, so save it before any 1120 ;; further processing clobbers it (we restore it in 1121 ;; archive-write-file-member, above). 1122 (setq archive-member-coding-system last-coding-system-used) 1123 (if (aref descr 3) 1124 ;; Set the file modes, but make sure we can read it. 1125 (set-file-modes tmpfile (logior ?\400 (aref descr 3)))) 1126 (if enable-multibyte-characters 1127 (setq ename 1128 (encode-coding-string ename file-name-coding-system))) 1129 (let ((exitcode (apply 'call-process 1130 (car command) 1131 nil 1132 nil 1133 nil 1134 (append (cdr command) (list archive ename))))) 1135 (if (equal exitcode 0) 1136 nil 1137 (error "Updating was unsuccessful (%S)" exitcode)))) 1138 (archive-delete-local tmpfile)))) 1139 1140(defun archive-write-file (&optional file) 1141 (save-excursion 1142 (let ((coding-system-for-write 'no-conversion)) 1143 (write-region archive-proper-file-start (point-max) 1144 (or file buffer-file-name) nil t) 1145 (set-buffer-modified-p nil)) 1146 t)) 1147;; ------------------------------------------------------------------------- 1148;; Section: Marking and unmarking. 1149 1150(defun archive-flag-deleted (p &optional type) 1151 "In archive mode, mark this member to be deleted from the archive. 1152With a prefix argument, mark that many files." 1153 (interactive "p") 1154 (or type (setq type ?D)) 1155 (beginning-of-line) 1156 (let ((sign (if (>= p 0) +1 -1)) 1157 (modified (buffer-modified-p)) 1158 (inhibit-read-only t)) 1159 (while (not (zerop p)) 1160 (if (archive-get-descr t) 1161 (progn 1162 (delete-char 1) 1163 (insert type))) 1164 (forward-line sign) 1165 (setq p (- p sign))) 1166 (restore-buffer-modified-p modified)) 1167 (archive-next-line 0)) 1168 1169(defun archive-unflag (p) 1170 "In archive mode, un-mark this member if it is marked to be deleted. 1171With a prefix argument, un-mark that many files forward." 1172 (interactive "p") 1173 (archive-flag-deleted p ?\s)) 1174 1175(defun archive-unflag-backwards (p) 1176 "In archive mode, un-mark this member if it is marked to be deleted. 1177With a prefix argument, un-mark that many members backward." 1178 (interactive "p") 1179 (archive-flag-deleted (- p) ?\s)) 1180 1181(defun archive-unmark-all-files () 1182 "Remove all marks." 1183 (interactive) 1184 (let ((modified (buffer-modified-p)) 1185 (inhibit-read-only t)) 1186 (save-excursion 1187 (goto-char archive-file-list-start) 1188 (while (< (point) archive-file-list-end) 1189 (or (= (following-char) ?\s) 1190 (progn (delete-char 1) (insert ?\s))) 1191 (forward-line 1))) 1192 (restore-buffer-modified-p modified))) 1193 1194(defun archive-mark (p) 1195 "In archive mode, mark this member for group operations. 1196With a prefix argument, mark that many members. 1197Use \\[archive-unmark-all-files] to remove all marks." 1198 (interactive "p") 1199 (archive-flag-deleted p ?*)) 1200 1201(defun archive-get-marked (mark &optional default) 1202 (let (files) 1203 (save-excursion 1204 (goto-char archive-file-list-start) 1205 (while (< (point) archive-file-list-end) 1206 (if (= (following-char) mark) 1207 (setq files (cons (archive-get-descr) files))) 1208 (forward-line 1))) 1209 (or (nreverse files) 1210 (and default 1211 (list (archive-get-descr)))))) 1212;; ------------------------------------------------------------------------- 1213;; Section: Operate 1214 1215(defun archive-next-line (p) 1216 (interactive "p") 1217 (forward-line p) 1218 (or (eobp) 1219 (forward-char archive-file-name-indent))) 1220 1221(defun archive-previous-line (p) 1222 (interactive "p") 1223 (archive-next-line (- p))) 1224 1225(defun archive-chmod-entry (new-mode) 1226 "Change the protection bits associated with all marked or this member. 1227The new protection bits can either be specified as an octal number or 1228as a relative change like \"g+rw\" as for chmod(2)." 1229 (interactive "sNew mode (octal or relative): ") 1230 (if archive-read-only (error "Archive is read-only")) 1231 (let ((func (archive-name "chmod-entry"))) 1232 (if (fboundp func) 1233 (progn 1234 (funcall func new-mode (archive-get-marked ?* t)) 1235 (archive-resummarize)) 1236 (error "Setting mode bits is not supported for this archive type")))) 1237 1238(defun archive-chown-entry (new-uid) 1239 "Change the owner of all marked or this member." 1240 (interactive "nNew uid: ") 1241 (if archive-read-only (error "Archive is read-only")) 1242 (let ((func (archive-name "chown-entry"))) 1243 (if (fboundp func) 1244 (progn 1245 (funcall func new-uid (archive-get-marked ?* t)) 1246 (archive-resummarize)) 1247 (error "Setting owner is not supported for this archive type")))) 1248 1249(defun archive-chgrp-entry (new-gid) 1250 "Change the group of all marked or this member." 1251 (interactive "nNew gid: ") 1252 (if archive-read-only (error "Archive is read-only")) 1253 (let ((func (archive-name "chgrp-entry"))) 1254 (if (fboundp func) 1255 (progn 1256 (funcall func new-gid (archive-get-marked ?* t)) 1257 (archive-resummarize)) 1258 (error "Setting group is not supported for this archive type")))) 1259 1260(defun archive-expunge () 1261 "Do the flagged deletions." 1262 (interactive) 1263 (let (files) 1264 (save-excursion 1265 (goto-char archive-file-list-start) 1266 (while (< (point) archive-file-list-end) 1267 (if (= (following-char) ?D) 1268 (setq files (cons (aref (archive-get-descr) 0) files))) 1269 (forward-line 1))) 1270 (setq files (nreverse files)) 1271 (and files 1272 (or (not archive-read-only) 1273 (error "Archive is read-only")) 1274 (or (yes-or-no-p (format "Really delete %d member%s? " 1275 (length files) 1276 (if (null (cdr files)) "" "s"))) 1277 (error "Operation aborted")) 1278 (let ((archive (archive-maybe-copy (buffer-file-name))) 1279 (expunger (archive-name "expunge"))) 1280 (if (fboundp expunger) 1281 (funcall expunger archive files) 1282 (archive-*-expunge archive files (symbol-value expunger))) 1283 (archive-maybe-update nil) 1284 (if archive-remote 1285 (archive-resummarize) 1286 (revert-buffer)))))) 1287 1288(defun archive-*-expunge (archive files command) 1289 (apply 'call-process 1290 (car command) 1291 nil 1292 nil 1293 nil 1294 (append (cdr command) (cons archive files)))) 1295 1296(defun archive-rename-entry (newname) 1297 "Change the name associated with this entry in the archive file." 1298 (interactive "sNew name: ") 1299 (if archive-read-only (error "Archive is read-only")) 1300 (if (string= newname "") 1301 (error "Archive members may not be given empty names")) 1302 (let ((func (archive-name "rename-entry")) 1303 (descr (archive-get-descr))) 1304 (if (fboundp func) 1305 (progn 1306 (funcall func 1307 (if enable-multibyte-characters 1308 (encode-coding-string newname file-name-coding-system) 1309 newname) 1310 descr) 1311 (archive-resummarize)) 1312 (error "Renaming is not supported for this archive type")))) 1313 1314;; Revert the buffer and recompute the dired-like listing. 1315(defun archive-mode-revert (&optional no-auto-save no-confirm) 1316 (let ((no (archive-get-lineno))) 1317 (setq archive-files nil) 1318 (let ((revert-buffer-function nil) 1319 (coding-system-for-read 'no-conversion)) 1320 (set-buffer-multibyte nil) 1321 (revert-buffer t t)) 1322 (archive-mode) 1323 (goto-char archive-file-list-start) 1324 (archive-next-line no))) 1325 1326(defun archive-undo () 1327 "Undo in an archive buffer. 1328This doesn't recover lost files, it just undoes changes in the buffer itself." 1329 (interactive) 1330 (let ((inhibit-read-only t)) 1331 (undo))) 1332;; ------------------------------------------------------------------------- 1333;; Section: Arc Archives 1334 1335(defun archive-arc-summarize () 1336 (let ((p 1) 1337 (totalsize 0) 1338 (maxlen 8) 1339 files 1340 visual) 1341 (while (and (< (+ p 29) (point-max)) 1342 (= (char-after p) ?\C-z) 1343 (> (char-after (1+ p)) 0)) 1344 (let* ((namefld (buffer-substring (+ p 2) (+ p 2 13))) 1345 (fnlen (or (string-match "\0" namefld) 13)) 1346 (efnname (substring namefld 0 fnlen)) 1347 ;; Convert to float to avoid overflow for very large files. 1348 (csize (archive-l-e (+ p 15) 4 'float)) 1349 (moddate (archive-l-e (+ p 19) 2)) 1350 (modtime (archive-l-e (+ p 21) 2)) 1351 (ucsize (archive-l-e (+ p 25) 4 'float)) 1352 (fiddle (string= efnname (upcase efnname))) 1353 (ifnname (if fiddle (downcase efnname) efnname)) 1354 (text (format " %8.0f %-11s %-8s %s" 1355 ucsize 1356 (archive-dosdate moddate) 1357 (archive-dostime modtime) 1358 ifnname))) 1359 (setq maxlen (max maxlen fnlen) 1360 totalsize (+ totalsize ucsize) 1361 visual (cons (vector text 1362 (- (length text) (length ifnname)) 1363 (length text)) 1364 visual) 1365 files (cons (vector efnname ifnname fiddle nil (1- p)) 1366 files) 1367 ;; p needs to stay an integer, since we use it in char-after 1368 ;; above. Passing through `round' limits the compressed size 1369 ;; to most-positive-fixnum, but if the compressed size exceeds 1370 ;; that, we cannot visit the archive anyway. 1371 p (+ p 29 (round csize))))) 1372 (goto-char (point-min)) 1373 (let ((dash (concat "- -------- ----------- -------- " 1374 (make-string maxlen ?-) 1375 "\n"))) 1376 (insert "M Length Date Time File\n" 1377 dash) 1378 (archive-summarize-files (nreverse visual)) 1379 (insert dash 1380 (format " %8.0f %d file%s" 1381 totalsize 1382 (length files) 1383 (if (= 1 (length files)) "" "s")) 1384 "\n")) 1385 (apply 'vector (nreverse files)))) 1386 1387(defun archive-arc-rename-entry (newname descr) 1388 (if (string-match "[:\\\\/]" newname) 1389 (error "File names in arc files must not contain a directory component")) 1390 (if (> (length newname) 12) 1391 (error "File names in arc files are limited to 12 characters")) 1392 (let ((name (concat newname (substring "\0\0\0\0\0\0\0\0\0\0\0\0\0" 1393 (length newname)))) 1394 (inhibit-read-only t)) 1395 (save-restriction 1396 (save-excursion 1397 (widen) 1398 (set-buffer-multibyte nil) 1399 (goto-char (+ archive-proper-file-start (aref descr 4) 2)) 1400 (delete-char 13) 1401 (insert name))))) 1402;; ------------------------------------------------------------------------- 1403;; Section: Lzh Archives 1404 1405(defun archive-lzh-summarize (&optional start) 1406 (let ((p (or start 1)) ;; 1 for .lzh, something further on for .exe 1407 (totalsize 0) 1408 (maxlen 8) 1409 files 1410 visual) 1411 (while (progn (goto-char p) ;beginning of a base header. 1412 (looking-at "\\(.\\|\n\\)\\(.\\|\n\\)-l[hz][0-9ds]-")) 1413 (let* ((hsize (char-after p)) ;size of the base header (level 0 and 1) 1414 ;; Convert to float to avoid overflow for very large files. 1415 (csize (archive-l-e (+ p 7) 4 'float)) ;size of a compressed file to follow (level 0 and 2), 1416 ;size of extended headers + the compressed file to follow (level 1). 1417 (ucsize (archive-l-e (+ p 11) 4 'float)) ;size of an uncompressed file. 1418 (time1 (archive-l-e (+ p 15) 2)) ;date/time (MSDOS format in level 0, 1 headers 1419 (time2 (archive-l-e (+ p 17) 2)) ;and UNIX format in level 2 header.) 1420 (hdrlvl (char-after (+ p 20))) ;header level 1421 thsize ;total header size (base + extensions) 1422 fnlen efnname osid fiddle ifnname width p2 1423 neh ;beginning of next extension header (level 1 and 2) 1424 mode modestr uid gid text dir prname 1425 gname uname modtime moddate) 1426 (if (= hdrlvl 3) (error "can't handle lzh level 3 header type")) 1427 (when (or (= hdrlvl 0) (= hdrlvl 1)) 1428 (setq fnlen (char-after (+ p 21))) ;filename length 1429 (setq efnname (let ((str (buffer-substring (+ p 22) (+ p 22 fnlen)))) ;filename from offset 22 1430 (if file-name-coding-system 1431 (decode-coding-string str file-name-coding-system) 1432 (string-as-multibyte str)))) 1433 (setq p2 (+ p 22 fnlen))) ; 1434 (if (= hdrlvl 1) 1435 (setq neh (+ p2 3)) ;specific to level 1 header 1436 (if (= hdrlvl 2) 1437 (setq neh (+ p 24)))) ;specific to level 2 header 1438 (if neh ;if level 1 or 2 we expect extension headers to follow 1439 (let* ((ehsize (archive-l-e neh 2)) ;size of the extension header 1440 (etype (char-after (+ neh 2)))) ;extension type 1441 (while (not (= ehsize 0)) 1442 (cond 1443 ((= etype 1) ;file name 1444 (let ((i (+ neh 3))) 1445 (while (< i (+ neh ehsize)) 1446 (setq efnname (concat efnname (char-to-string (char-after i)))) 1447 (setq i (1+ i))))) 1448 ((= etype 2) ;directory name 1449 (let ((i (+ neh 3))) 1450 (while (< i (+ neh ehsize)) 1451 (setq dir (concat dir 1452 (if (= (char-after i) 1453 255) 1454 "/" 1455 (char-to-string 1456 (char-after i))))) 1457 (setq i (1+ i))))) 1458 ((= etype 80) ;Unix file permission 1459 (setq mode (archive-l-e (+ neh 3) 2))) 1460 ((= etype 81) ;UNIX file group/user ID 1461 (progn (setq uid (archive-l-e (+ neh 3) 2)) 1462 (setq gid (archive-l-e (+ neh 5) 2)))) 1463 ((= etype 82) ;UNIX file group name 1464 (let ((i (+ neh 3))) 1465 (while (< i (+ neh ehsize)) 1466 (setq gname (concat gname (char-to-string (char-after i)))) 1467 (setq i (1+ i))))) 1468 ((= etype 83) ;UNIX file user name 1469 (let ((i (+ neh 3))) 1470 (while (< i (+ neh ehsize)) 1471 (setq uname (concat uname (char-to-string (char-after i)))) 1472 (setq i (1+ i))))) 1473 ) 1474 (setq neh (+ neh ehsize)) 1475 (setq ehsize (archive-l-e neh 2)) 1476 (setq etype (char-after (+ neh 2)))) 1477 ;;get total header size for level 1 and 2 headers 1478 (setq thsize (- neh p)))) 1479 (if (= hdrlvl 0) ;total header size 1480 (setq thsize hsize)) 1481 ;; OS ID field not present in level 0 header, use code 0 "generic" 1482 ;; in that case as per lha program header.c get_header() 1483 (setq osid (cond ((= hdrlvl 0) 0) 1484 ((= hdrlvl 1) (char-after (+ p 22 fnlen 2))) 1485 ((= hdrlvl 2) (char-after (+ p 23))))) 1486 ;; Filename fiddling must follow the lha program, otherwise the name 1487 ;; passed to "lha pq" etc won't match (which for an extract silently 1488 ;; results in no output). As of version 1.14i it goes from the OS ID, 1489 ;; - For 'M' MSDOS: msdos_to_unix_filename() downcases always, and 1490 ;; converts "\" to "/". 1491 ;; - For 0 generic: generic_to_unix_filename() downcases if there's 1492 ;; no lower case already present, and converts "\" to "/". 1493 ;; - For 'm' MacOS: macos_to_unix_filename() changes "/" to ":" and 1494 ;; ":" to "/" 1495 (setq fiddle (cond ((= ?M osid) t) 1496 ((= 0 osid) (string= efnname (upcase efnname))))) 1497 (setq ifnname (if fiddle (downcase efnname) efnname)) 1498 (setq prname (if dir (concat dir ifnname) ifnname)) 1499 (setq width (if prname (string-width prname) 0)) 1500 (setq modestr (if mode (archive-int-to-mode mode) "??????????")) 1501 (setq moddate (if (= hdrlvl 2) 1502 (archive-unixdate time1 time2) ;level 2 header in UNIX format 1503 (archive-dosdate time2))) ;level 0 and 1 header in DOS format 1504 (setq modtime (if (= hdrlvl 2) 1505 (archive-unixtime time1 time2) 1506 (archive-dostime time1))) 1507 (setq text (if archive-alternate-display 1508 (format " %8.0f %5S %5S %s" 1509 ucsize 1510 (or uid "?") 1511 (or gid "?") 1512 ifnname) 1513 (format " %10s %8.0f %-11s %-8s %s" 1514 modestr 1515 ucsize 1516 moddate 1517 modtime 1518 prname))) 1519 (setq maxlen (max maxlen width) 1520 totalsize (+ totalsize ucsize) 1521 visual (cons (vector text 1522 (- (length text) (length prname)) 1523 (length text)) 1524 visual) 1525 files (cons (vector prname ifnname fiddle mode (1- p)) 1526 files)) 1527 (cond ((= hdrlvl 1) 1528 ;; p needs to stay an integer, since we use it in goto-char 1529 ;; above. Passing through `round' limits the compressed size 1530 ;; to most-positive-fixnum, but if the compressed size exceeds 1531 ;; that, we cannot visit the archive anyway. 1532 (setq p (+ p hsize 2 (round csize)))) 1533 ((or (= hdrlvl 2) (= hdrlvl 0)) 1534 (setq p (+ p thsize 2 (round csize))))) 1535 )) 1536 (goto-char (point-min)) 1537 (set-buffer-multibyte default-enable-multibyte-characters) 1538 (let ((dash (concat (if archive-alternate-display 1539 "- -------- ----- ----- " 1540 "- ---------- -------- ----------- -------- ") 1541 (make-string maxlen ?-) 1542 "\n")) 1543 (header (if archive-alternate-display 1544 "M Length Uid Gid File\n" 1545 "M Filemode Length Date Time File\n")) 1546 (sumline (if archive-alternate-display 1547 " %8.0f %d file%s" 1548 " %8.0f %d file%s"))) 1549 (insert header dash) 1550 (archive-summarize-files (nreverse visual)) 1551 (insert dash 1552 (format sumline 1553 totalsize 1554 (length files) 1555 (if (= 1 (length files)) "" "s")) 1556 "\n")) 1557 (apply 'vector (nreverse files)))) 1558 1559(defconst archive-lzh-alternate-display t) 1560 1561(defun archive-lzh-extract (archive name) 1562 (archive-extract-by-stdout archive name archive-lzh-extract)) 1563 1564(defun archive-lzh-resum (p count) 1565 (let ((sum 0)) 1566 (while (> count 0) 1567 (setq count (1- count) 1568 sum (+ sum (char-after p)) 1569 p (1+ p))) 1570 (logand sum 255))) 1571 1572(defun archive-lzh-rename-entry (newname descr) 1573 (save-restriction 1574 (save-excursion 1575 (widen) 1576 (set-buffer-multibyte nil) 1577 (let* ((p (+ archive-proper-file-start (aref descr 4))) 1578 (oldhsize (char-after p)) 1579 (oldfnlen (char-after (+ p 21))) 1580 (newfnlen (length newname)) 1581 (newhsize (+ oldhsize newfnlen (- oldfnlen))) 1582 (inhibit-read-only t)) 1583 (if (> newhsize 255) 1584 (error "The file name is too long")) 1585 (goto-char (+ p 21)) 1586 (delete-char (1+ oldfnlen)) 1587 (insert newfnlen newname) 1588 (goto-char p) 1589 (delete-char 2) 1590 (insert newhsize (archive-lzh-resum p newhsize)))))) 1591 1592(defun archive-lzh-ogm (newval files errtxt ofs) 1593 (save-excursion 1594 (save-restriction 1595 (widen) 1596 (set-buffer-multibyte nil) 1597 (dolist (fil files) 1598 (let* ((p (+ archive-proper-file-start (aref fil 4))) 1599 (hsize (char-after p)) 1600 (fnlen (char-after (+ p 21))) 1601 (p2 (+ p 22 fnlen)) 1602 (creator (if (>= (- hsize fnlen) 24) (char-after (+ p2 2)) 0)) 1603 (inhibit-read-only t)) 1604 (if (= creator ?U) 1605 (progn 1606 (or (numberp newval) 1607 (setq newval (funcall newval (archive-l-e (+ p2 ofs) 2)))) 1608 (goto-char (+ p2 ofs)) 1609 (delete-char 2) 1610 (insert (logand newval 255) (lsh newval -8)) 1611 (goto-char (1+ p)) 1612 (delete-char 1) 1613 (insert (archive-lzh-resum (1+ p) hsize))) 1614 (message "Member %s does not have %s field" 1615 (aref fil 1) errtxt))))))) 1616 1617(defun archive-lzh-chown-entry (newuid files) 1618 (archive-lzh-ogm newuid files "an uid" 10)) 1619 1620(defun archive-lzh-chgrp-entry (newgid files) 1621 (archive-lzh-ogm newgid files "a gid" 12)) 1622 1623(defun archive-lzh-chmod-entry (newmode files) 1624 (archive-lzh-ogm 1625 ;; This should work even though newmode will be dynamically accessed. 1626 (lambda (old) (archive-calc-mode old newmode t)) 1627 files "a unix-style mode" 8)) 1628 1629;; ------------------------------------------------------------------------- 1630;; Section: Lzh Self-Extracting .exe Archives 1631;; 1632;; No support for modifying these files. It looks like the lha for unix 1633;; program (as of version 1.14i) can't create or retain the DOS exe part. 1634;; If you do an "lha a" on a .exe for instance it renames and writes to a 1635;; plain .lzh. 1636 1637(defun archive-lzh-exe-summarize () 1638 "Summarize the contents of an LZH self-extracting exe, for `archive-mode'." 1639 1640 ;; Skip the initial executable code part and apply archive-lzh-summarize 1641 ;; to the archive part proper. The "-lh5-" etc regexp here for the start 1642 ;; is the same as in archive-find-type. 1643 ;; 1644 ;; The lha program (version 1.14i) does this in skip_msdos_sfx1_code() by 1645 ;; a similar scan. It looks for "..-l..-" plus for level 0 or 1 a test of 1646 ;; the header checksum, or level 2 a test of the "attribute" and size. 1647 ;; 1648 (re-search-forward "..-l[hz][0-9ds]-" nil) 1649 (archive-lzh-summarize (match-beginning 0))) 1650 1651;; `archive-lzh-extract' runs "lha pq", and that works for .exe as well as 1652;; .lzh files 1653(defalias 'archive-lzh-exe-extract 'archive-lzh-extract 1654 "Extract a member from an LZH self-extracting exe, for `archive-mode'.") 1655 1656;; ------------------------------------------------------------------------- 1657;; Section: Zip Archives 1658 1659(defun archive-zip-summarize () 1660 (goto-char (- (point-max) (- 22 18))) 1661 (search-backward-regexp "[P]K\005\006") 1662 (let ((p (+ (point-min) (archive-l-e (+ (point) 16) 4))) 1663 (maxlen 8) 1664 (totalsize 0) 1665 files 1666 visual) 1667 (while (string= "PK\001\002" (buffer-substring p (+ p 4))) 1668 (let* ((creator (char-after (+ p 5))) 1669 ;; (method (archive-l-e (+ p 10) 2)) 1670 (modtime (archive-l-e (+ p 12) 2)) 1671 (moddate (archive-l-e (+ p 14) 2)) 1672 ;; Convert to float to avoid overflow for very large files. 1673 (ucsize (archive-l-e (+ p 24) 4 'float)) 1674 (fnlen (archive-l-e (+ p 28) 2)) 1675 (exlen (archive-l-e (+ p 30) 2)) 1676 (fclen (archive-l-e (+ p 32) 2)) 1677 (lheader (archive-l-e (+ p 42) 4)) 1678 (efnname (let ((str (buffer-substring (+ p 46) (+ p 46 fnlen)))) 1679 (if file-name-coding-system 1680 (decode-coding-string str file-name-coding-system) 1681 (string-as-multibyte str)))) 1682 (isdir (and (= ucsize 0) 1683 (string= (file-name-nondirectory efnname) ""))) 1684 (mode (cond ((memq creator '(2 3)) ; Unix + VMS 1685 (archive-l-e (+ p 40) 2)) 1686 ((memq creator '(0 5 6 7 10 11 15)) ; Dos etc. 1687 (logior ?\444 1688 (if isdir (logior 16384 ?\111) 0) 1689 (if (zerop 1690 (logand 1 (char-after (+ p 38)))) 1691 ?\222 0))) 1692 (t nil))) 1693 (modestr (if mode (archive-int-to-mode mode) "??????????")) 1694 (fiddle (and archive-zip-case-fiddle 1695 (not (not (memq creator '(0 2 4 5 9)))) 1696 (string= (upcase efnname) efnname))) 1697 (ifnname (if fiddle (downcase efnname) efnname)) 1698 (width (string-width ifnname)) 1699 (text (format " %10s %8.0f %-11s %-8s %s" 1700 modestr 1701 ucsize 1702 (archive-dosdate moddate) 1703 (archive-dostime modtime) 1704 ifnname))) 1705 (setq maxlen (max maxlen width) 1706 totalsize (+ totalsize ucsize) 1707 visual (cons (vector text 1708 (- (length text) (length ifnname)) 1709 (length text)) 1710 visual) 1711 files (cons (if isdir 1712 nil 1713 (vector efnname ifnname fiddle mode 1714 (list (1- p) lheader))) 1715 files) 1716 p (+ p 46 fnlen exlen fclen)))) 1717 (goto-char (point-min)) 1718 (let ((dash (concat "- ---------- -------- ----------- -------- " 1719 (make-string maxlen ?-) 1720 "\n"))) 1721 (insert "M Filemode Length Date Time File\n" 1722 dash) 1723 (archive-summarize-files (nreverse visual)) 1724 (insert dash 1725 (format " %8.0f %d file%s" 1726 totalsize 1727 (length files) 1728 (if (= 1 (length files)) "" "s")) 1729 "\n")) 1730 (apply 'vector (nreverse files)))) 1731 1732(defun archive-zip-extract (archive name) 1733 (if (equal (car archive-zip-extract) "pkzip") 1734 (archive-*-extract archive name archive-zip-extract) 1735 (archive-extract-by-stdout archive name archive-zip-extract))) 1736 1737(defun archive-zip-write-file-member (archive descr) 1738 (archive-*-write-file-member 1739 archive 1740 descr 1741 (if (aref descr 2) archive-zip-update-case archive-zip-update))) 1742 1743(defun archive-zip-chmod-entry (newmode files) 1744 (save-restriction 1745 (save-excursion 1746 (widen) 1747 (set-buffer-multibyte nil) 1748 (dolist (fil files) 1749 (let* ((p (+ archive-proper-file-start (car (aref fil 4)))) 1750 (creator (char-after (+ p 5))) 1751 (oldmode (aref fil 3)) 1752 (newval (archive-calc-mode oldmode newmode t)) 1753 (inhibit-read-only t)) 1754 (cond ((memq creator '(2 3)) ; Unix + VMS 1755 (goto-char (+ p 40)) 1756 (delete-char 2) 1757 (insert (logand newval 255) (lsh newval -8))) 1758 ((memq creator '(0 5 6 7 10 11 15)) ; Dos etc. 1759 (goto-char (+ p 38)) 1760 (insert (logior (logand (char-after (point)) 254) 1761 (logand (logxor 1 (lsh newval -7)) 1))) 1762 (delete-char 1)) 1763 (t (message "Don't know how to change mode for this member")))) 1764 )))) 1765;; ------------------------------------------------------------------------- 1766;; Section: Zoo Archives 1767 1768(defun archive-zoo-summarize () 1769 (let ((p (1+ (archive-l-e 25 4))) 1770 (maxlen 8) 1771 (totalsize 0) 1772 files 1773 visual) 1774 (while (and (string= "\334\247\304\375" (buffer-substring p (+ p 4))) 1775 (> (archive-l-e (+ p 6) 4) 0)) 1776 (let* ((next (1+ (archive-l-e (+ p 6) 4))) 1777 (moddate (archive-l-e (+ p 14) 2)) 1778 (modtime (archive-l-e (+ p 16) 2)) 1779 ;; Convert to float to avoid overflow for very large files. 1780 (ucsize (archive-l-e (+ p 20) 4 'float)) 1781 (namefld (buffer-substring (+ p 38) (+ p 38 13))) 1782 (dirtype (char-after (+ p 4))) 1783 (lfnlen (if (= dirtype 2) (char-after (+ p 56)) 0)) 1784 (ldirlen (if (= dirtype 2) (char-after (+ p 57)) 0)) 1785 (fnlen (or (string-match "\0" namefld) 13)) 1786 (efnname (let ((str 1787 (concat 1788 (if (> ldirlen 0) 1789 (concat (buffer-substring 1790 (+ p 58 lfnlen) 1791 (+ p 58 lfnlen ldirlen -1)) 1792 "/") 1793 "") 1794 (if (> lfnlen 0) 1795 (buffer-substring (+ p 58) 1796 (+ p 58 lfnlen -1)) 1797 (substring namefld 0 fnlen))))) 1798 (if file-name-coding-system 1799 (decode-coding-string str file-name-coding-system) 1800 (string-as-multibyte str)))) 1801 (fiddle (and (= lfnlen 0) (string= efnname (upcase efnname)))) 1802 (ifnname (if fiddle (downcase efnname) efnname)) 1803 (width (string-width ifnname)) 1804 (text (format " %8.0f %-11s %-8s %s" 1805 ucsize 1806 (archive-dosdate moddate) 1807 (archive-dostime modtime) 1808 ifnname))) 1809 (setq maxlen (max maxlen width) 1810 totalsize (+ totalsize ucsize) 1811 visual (cons (vector text 1812 (- (length text) (length ifnname)) 1813 (length text)) 1814 visual) 1815 files (cons (vector efnname ifnname fiddle nil (1- p)) 1816 files) 1817 p next))) 1818 (goto-char (point-min)) 1819 (let ((dash (concat "- -------- ----------- -------- " 1820 (make-string maxlen ?-) 1821 "\n"))) 1822 (insert "M Length Date Time File\n" 1823 dash) 1824 (archive-summarize-files (nreverse visual)) 1825 (insert dash 1826 (format " %8.0f %d file%s" 1827 totalsize 1828 (length files) 1829 (if (= 1 (length files)) "" "s")) 1830 "\n")) 1831 (apply 'vector (nreverse files)))) 1832 1833(defun archive-zoo-extract (archive name) 1834 (archive-extract-by-stdout archive name archive-zoo-extract)) 1835;; ------------------------------------------------------------------------- 1836;; This line was a mistake; it is kept now for compatibility. 1837;; rms 15 Oct 98 1838(provide 'archive-mode) 1839 1840(provide 'arc-mode) 1841 1842;; arch-tag: e5966a01-35ec-4f27-8095-a043a79b457b 1843;;; arc-mode.el ends here 1844