From 665211a38bd089895230b3ed313a515fff4d3ee3 Mon Sep 17 00:00:00 2001 From: Karl Heuer Date: Tue, 23 May 1995 01:53:12 +0000 Subject: [PATCH] Initial revision --- lisp/arc-mode.el | 1466 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1466 insertions(+) create mode 100644 lisp/arc-mode.el diff --git a/lisp/arc-mode.el b/lisp/arc-mode.el new file mode 100644 index 00000000000..ef5591fed1b --- /dev/null +++ b/lisp/arc-mode.el @@ -0,0 +1,1466 @@ +;;; arc-mode.el --- simple editing of archives + +;;; Copyright (C) 1995 Free Software Foundation, Inc. + +;; Author: Morten Welinder (terra@diku.dk) +;; Version: 0,31 +;; Keywords: archives msdog editing major-mode +;; Favourite-brand-of-beer: None, I hate beer. + +;;; This file is part of GNU Emacs. +;;; +;;; GNU Emacs is free software; you can redistribute it and/or modify +;;; it under the terms of the GNU General Public License as published by +;;; the Free Software Foundation; either version 2, or (at your option) +;;; any later version. +;;; +;;; GNU Emacs is distributed in the hope that it will be useful, +;;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;;; GNU General Public License for more details. +;;; +;;; You should have received a copy of the GNU General Public License +;;; along with GNU Emacs; see the file COPYING. If not, write to +;;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + +;;; Commentary: +;; +;; NAMING: "arc" is short for "archive" and does not refer specifically +;; to files whose name end in ".arc" +;; +;; This code does not decode any files internally, although it does +;; understand the directory level of the archives. For this reason, +;; you should expect this code to need more fiddling than tar-mode.el +;; (although it at present has fewer bugs :-) In particular, I have +;; not tested this under Ms-Dog myself. +;; ------------------------------------- +;; INTERACTION: arc-mode.el should play together with +;; +;; * ange-ftp.el: Remote archives (i.e., ones that ange-ftp has brought +;; to you) are handled by doing all updates on a local +;; copy. When you make changes to a remote file the +;; changes will first take effect when the archive buffer +;; is saved. You will be warned about this. +;; +;; * dos-fns.el: (Part of Emacs 19). You get automatic ^M^J <--> ^J +;; conversion. +;; +;; arc-mode.el does not work well with crypt++.el; for the archives as +;; such this could be fixed (but wouldn't be useful) by declaring such +;; archives to be "remote". For the members this is a general Emacs +;; problem that 19.29's file formats may fix. +;; ------------------------------------- +;; ARCHIVE TYPES: Currently only the archives below are handled, but the +;; structure for handling just about anything is in place. +;; +;; Arc Lzh Zip Zoo +;; -------------------------------- +;; View listing Intern Intern Intern Intern +;; Extract member Y Y Y Y +;; Save changed member Y Y Y Y +;; Add new member N N N N +;; Delete member Y Y Y Y +;; Rename member Y Y N N +;; Chmod - Y Y - +;; Chown - Y - - +;; Chgrp - Y - - +;; +;; Special thanks to Bill Brodie for very useful tips +;; on the first released version of this package. +;; +;; This code is partly based on tar-mode.el from Emacs. +;; ------------------------------------- +;; ARCHIVE STRUCTURES: +;; (This is mostly for myself.) +;; +;; ARC A series of (header,file). No interactions among members. +;; +;; LZH A series of (header,file). Headers are checksummed. No +;; interaction among members. +;; +;; ZIP A series of (lheader,fil) followed by a "central directory" +;; which is a series of (cheader) followed by an end-of- +;; central-dir record possibly followed by junk. The e-o-c-d +;; links to c-d. cheaders link to lheaders which are basically +;; cut-down versions of the cheaders. +;; +;; ZOO An archive header followed by a series of (header,file). +;; Each member header points to the next. The archive is +;; terminated by a bogus header with a zero next link. +;; ------------------------------------- +;; SETUP: .emacs fodder: +;; +;; (setq auto-mode-alist +;; (cons '("\\.\\(arc\\|zip\\|lzh\\|zoo\\)\\'" . archive-mode) +;; auto-mode-alist)) +;; (autoload 'archive-mode "arc-mode" "Major mode for editing archives." t) +;; +;; Furthermore, for msdog, you need to make sure that the archives are loaded +;; as binary files. For arc/zip/pak/lzh/zoo this is the default. +;; ------------------------------------- +;; HOOKS: `foo' means one the the supported archive types. +;; +;; archive-mode-hook +;; archive-foo-mode-hook +;; archive-extract-hooks + +;;; Code: + +;; ------------------------------------------------------------------------- +;; Section: Configuration. + +(defvar archive-dos-members t + "*If non-nil then recognize member files using ^M^J as line terminator +and do The Right Thing.") + +(defvar archive-tmpdir + (expand-file-name + (make-temp-name (if (eq system-type 'ms-dos) "ar" "archive.tmp")) + (or (getenv "TMPDIR") (getenv "TMP") "/tmp")) + "*Directory for temporary files made by arc-mode.el") + +(defvar archive-remote-regexp "^/[^/:]*[^/:]:" + "*Regexp recognizing archive files names that are not local (i.e., are +not proper file names outside Emacs). A local copy a the archive will +be used when updating.") + +(defvar archive-extract-hooks nil + "*Hooks to run when an archive member has been extracted.") +;; ------------------------------ +;; Arc archive configuration + +;; We always go via a local file since there seems to be no reliable way +;; to extract to stdout without junk getting added. +(defvar archive-arc-extract + '("arc" "x") + "*Program and its options to run in order to extract an arc file member +to the current directory. Archive and member name will be added.") + +(defvar archive-arc-expunge + '("arc" "d") + "*Program and its options to run in order to delete arc file members. +Archive and member names will be added.") + +(defvar archive-arc-write-file-member + '("arc" "u") + "*Program and its options to run in order to update an arc file member. +Archive and member name will be added.") +;; ------------------------------ +;; Lzh archive configuration + +(defvar archive-lzh-extract + '("lha" "pq") + "*Program and its options to run in order to extract an lzh file member +to standard output. Archive and member name will be added.") + +(defvar archive-lzh-expunge + '("lha" "d") + "*Program and its options to run in order to delete lzh file members. +Archive and member names will be added.") + +(defvar archive-lzh-write-file-member + '("lha" "a") + "*Program and its options to run in order to update an lzh file member. +Archive and member name will be added.") +;; ------------------------------ +;; Zip archive configuration + +(defvar archive-zip-use-pkzip (memq system-type '(ms-dos windows-nt)) + "*If non-nil then all zip options default to values suitable when using +pkzip and pkunzip. Only set to true for msdog systems!") + +(defvar archive-zip-extract + (if archive-zip-use-pkzip '("pkunzip" "-e") '("unzip" "-qq" "-c")) + "*Program and its options to run in order to extract a zip file member +to standard output. Archive and member name will be added.\n +If `archive-zip-use-pkzip' is non-nil then this program is expected to +extract to a file junking the directory part of the name.") + +;; For several reasons the latter behaviour is not desireable in general. +;; (1) It uses more disk space. (2) Error checking is worse or non- +;; existent. (3) It tends to do funny things with other systems' file +;; names. + +(defvar archive-zip-expunge + (if archive-zip-use-pkzip '("pkzip" "-d") '("zip" "-d" "-q")) + "*Program and its options to run in order to delete zip file members. +Archive and member names will be added.") + +(defvar archive-zip-update + (if archive-zip-use-pkzip '("pkzip" "-u") '("zip" "-q")) + "*Program and its options to run in order to update a zip file member. +Options should ensure that specified directory will be put into the zip +file. Archive and member name will be added.") + +(defvar archive-zip-update-case + (if archive-zip-use-pkzip archive-zip-update '("zip" "-q" "-k")) + "*Program and its options to run in order to update a case fiddled +zip file member. Options should ensure that specified directory will +be put into the zip file. Archive and member name will be added.") + +(defvar archive-zip-case-fiddle t + "*If non-nil then zip file members are mapped to lower case if created +by a system that under single case file names.") +;; ------------------------------ +;; Zoo archive configuration + +(defvar archive-zoo-extract + '("zoo" "xpq") + "*Program and its options to run in order to extract a zoo file member +to standard output. Archive and member name will be added.") + +(defvar archive-zoo-expunge + '("zoo" "DqPP") + "*Program and its options to run in order to delete zoo file members. +Archive and member names will be added.") + +(defvar archive-zoo-write-file-member + '("zoo" "a") + "*Program and its options to run in order to update a zoo file member. +Archive and member name will be added.") +;; ------------------------------------------------------------------------- +;; Section: Variables + +(defvar archive-subtype nil "*Symbol describing archive type.") +(defvar archive-file-list-start nil "*Position of first contents line.") +(defvar archive-file-list-end nil "*Position just after last contents line.") +(defvar archive-proper-file-start nil "*Position of real archive's start.") +(defvar archive-read-only nil "*Non-nil if the archive is read-only on disk.") +(defvar archive-remote nil "*Non-nil if the archive is outside file system.") +(defvar archive-local-name nil "*Name of local copy of remote archive.") +(defvar archive-mode-map nil "*Local keymap for archive mode listings.") +(defvar archive-file-name-indent nil "*Column where file names start.") + +(defvar archive-alternate-display nil + "*Non-nil when alternate information is shown.") +(make-variable-buffer-local 'archive-alternate-display) +(put 'archive-alternate-display 'permanent-local t) + +(defvar archive-superior-buffer nil "*In archive members, points to archive.") +(put 'archive-superior-buffer 'permanent-local t) + +(defvar archive-subfile-mode nil "*Non-nil in archive member buffers.") +(make-variable-buffer-local 'archive-subfile-mode) +(put 'archive-subfile-mode 'permanent-local t) + +;; buffer-file-type is a per-buffer variable in the msdog configuration +(if (boundp 'buffer-file-type) nil + (defvar buffer-file-type nil + "*Nil for dos-style text file, non-nil otherwise.") + (make-variable-buffer-local 'buffer-file-type) + (put 'buffer-file-type 'permanent-local t) + (setq-default buffer-file-type nil)) + +(defvar archive-subfile-dos nil + "Negation of `buffer-file-type' which see.") +(make-variable-buffer-local 'archive-subfile-dos) +(put 'archive-subfile-dos 'permanent-local t) + +(defvar archive-files nil "Vector of file descriptors. Each descriptor is +a vector of [ext-file-name int-file-name case-fiddled mode ...]") +(make-variable-buffer-local 'archive-files) +;; ------------------------------------------------------------------------- +;; Section: Support functions. + +(defsubst archive-name (suffix) + (intern (concat "archive-" (symbol-name archive-subtype) "-" suffix))) + +(defun archive-l-e (str &optional len) + "Convert little endian string/vector to integer. Alternatively, first +argument may be a buffer position in the current buffer in which case a +second arguemnt, length, should be supplied." + (if (stringp str) + (setq len (length str)) + (setq str (buffer-substring str (+ str len)))) + (let ((result 0) + (i 0)) + (while (< i len) + (setq i (1+ i) + result (+ (ash result 8) (aref str (- len i))))) + result)) + +(defun archive-int-to-mode (mode) + "Turn an integer like 0700 (i.e., 448) into a mode string like -rwx------" + (let ((str (make-string 10 ?-))) + (or (zerop (logand 16384 mode)) (aset str 0 ?d)) + (or (zerop (logand 8192 mode)) (aset str 0 ?c)) ; completeness + (or (zerop (logand 256 mode)) (aset str 1 ?r)) + (or (zerop (logand 128 mode)) (aset str 2 ?w)) + (or (zerop (logand 64 mode)) (aset str 3 ?x)) + (or (zerop (logand 32 mode)) (aset str 4 ?r)) + (or (zerop (logand 16 mode)) (aset str 5 ?w)) + (or (zerop (logand 8 mode)) (aset str 6 ?x)) + (or (zerop (logand 4 mode)) (aset str 7 ?r)) + (or (zerop (logand 2 mode)) (aset str 8 ?w)) + (or (zerop (logand 1 mode)) (aset str 9 ?x)) + (or (zerop (logand 1024 mode)) (aset str 3 (if (zerop (logand 64 mode)) + ?S ?s))) + (or (zerop (logand 2048 mode)) (aset str 6 (if (zerop (logand 8 mode)) + ?S ?s))) + str)) + +(defun archive-calc-mode (oldmode newmode &optional error) + "From the integer OLDMODE and the string NEWMODE calculate a new file +mode.\n +NEWMODE may be an octal number including a leading zero in which case it +will become the new mode.\n +NEWMODE may also be a relative specification like \"og-rwx\" in which case +OLDMODE will be modified accordingly just like chmod(2) would have done.\n +If optional third argument ERROR is non-nil an error will be signaled if +the mode is invalid. If ERROR is nil then nil will be returned." + (cond ((string-match "^0[0-7]*$" newmode) + (let ((result 0) + (len (length newmode)) + (i 1)) + (while (< i len) + (setq result (+ (lsh result 3) (aref newmode i) (- ?0)) + i (1+ i))) + (logior (logand oldmode 65024) result))) + ((string-match "^\\([agou]+\\)\\([---+=]\\)\\([rwxst]+\\)$" newmode) + (let ((who 0) + (result oldmode) + (op (aref newmode (match-beginning 2))) + (bits 0) + (i (match-beginning 3))) + (while (< i (match-end 3)) + (let ((rwx (aref newmode i))) + (setq bits (logior bits (cond ((= rwx ?r) 292) + ((= rwx ?w) 146) + ((= rwx ?x) 73) + ((= rwx ?s) 3072) + ((= rwx ?t) 512))) + i (1+ i)))) + (while (< who (match-end 1)) + (let* ((whoc (aref newmode who)) + (whomask (cond ((= whoc ?a) 4095) + ((= whoc ?u) 1472) + ((= whoc ?g) 2104) + ((= whoc ?o) 7)))) + (if (= op ?=) + (setq result (logand result (lognot whomask)))) + (if (= op ?-) + (setq result (logand result (lognot (logand whomask bits)))) + (setq result (logior result (logand whomask bits))))) + (setq who (1+ who))) + result)) + (t + (if error + (error "Invalid mode specification: %s" newmode))))) + +(defun archive-dosdate (date) + "Stringify dos packed DATE record." + (let ((year (+ 1980 (logand (ash date -9) 127))) + (month (logand (ash date -5) 15)) + (day (logand date 31))) + (if (or (> month 12) (< month 1)) + "" + (format "%2d-%s-%d" + day + (aref ["Jan" "Feb" "Mar" "Apr" "May" "Jun" + "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"] (1- month)) + year)))) + +(defun archive-dostime (time) + "Stringify dos packed TIME record." + (let ((hour (logand (ash time -11) 31)) + (minute (logand (ash time -5) 53)) + (second (* 2 (logand time 31)))) ; 2 seconds resolution + (format "%02d:%02d:%02d" hour minute second))) + +;;(defun archive-unixdate (low high) +;; "Stringify unix (LOW HIGH) date." +;; (let ((str (current-time-string (cons high low)))) +;; (format "%s-%s-%s" +;; (substring str 8 9) +;; (substring str 4 7) +;; (substring str 20 24)))) + +;;(defun archive-unixtime (low high) +;; "Stringify unix (LOW HIGH) time." +;; (let ((str (current-time-string (cons high low)))) +;; (substring str 11 19))) + +(defun archive-get-lineno () + (if (>= (point) archive-file-list-start) + (count-lines archive-file-list-start + (save-excursion (beginning-of-line) (point))) + 0)) + +(defun archive-get-descr (&optional noerror) + "Return the descriptor vector for file at point. Do not signal an error +if optional second argument NOERROR is non-nil." + (let ((no (archive-get-lineno))) + (if (and (>= (point) archive-file-list-start) + (< no (length archive-files))) + (let ((item (aref archive-files no))) + (if (vectorp item) + item + (if (not noerror) + (error "Entry is not a regular member of the archive")))) + (if (not noerror) + (error "Line does not describe a member of the archive"))))) +;; ------------------------------------------------------------------------- +;; Section: the mode definition + +(defun archive-mode (&optional force) + "Major mode for viewing an archive file as a dired-like listing of its +contents. You can move around using the usual cursor motion commands. +Letters no longer insert themselves. +Type `e' to pull a file out of the archive and into its own buffer; +or click mouse-2 on the file's line in the archive mode buffer. + +If you edit a sub-file of this archive (as with the `e' command) and +save it, the contents of that buffer will be saved back into the +archive. + +\\{archive-mode-map}" + ;; This is not interactive because you shouldn't be turning this + ;; mode on and off. You can corrupt things that way. + (if (zerop (buffer-size)) + ;; At present we cannot create archives from scratch + (funcall default-major-mode) + (if (and (not force) archive-files) nil + (let* ((type (archive-find-type)) + (typename (copy-sequence (symbol-name type)))) + (aset typename 0 (upcase (aref typename 0))) + (kill-all-local-variables) + (make-local-variable 'archive-subtype) + (setq archive-subtype type) + + ;; Buffer contains treated image of file before the file contents + (make-local-variable 'revert-buffer-function) + (setq revert-buffer-function 'archive-mode-revert) + (auto-save-mode 0) + (make-local-variable 'local-write-file-hooks) + (add-hook 'local-write-file-hooks 'archive-write-file) + + ;; Real file contents is binary + (make-local-variable 'require-final-newline) + (setq require-final-newline nil) + (make-local-variable 'enable-local-variables) + (setq enable-local-variables nil) + (setq buffer-file-type t) + + (make-local-variable 'archive-read-only) + (setq archive-read-only (not (file-writable-p (buffer-file-name)))) + + ;; Should we use a local copy when accessing from outside Emacs? + (make-local-variable 'archive-local-name) + (make-local-variable 'archive-remote) + (setq archive-remote (string-match archive-remote-regexp + (buffer-file-name))) + + (setq major-mode 'archive-mode) + (setq mode-name (concat typename "-Archive")) + ;; Run archive-foo-mode-hook and archive-mode-hook + (run-hooks (archive-name "mode-hook") 'archive-mode-hook) + (use-local-map archive-mode-map)) + + (make-local-variable 'archive-proper-file-start) + (make-local-variable 'archive-file-list-start) + (make-local-variable 'archive-file-list-end) + (make-local-variable 'archive-file-name-indent) + (archive-summarize) + (setq buffer-read-only t)))) + +;; Archive mode is suitable only for specially formatted data. +(put 'archive-mode 'mode-class 'special) +;; ------------------------------------------------------------------------- +;; Section: Key maps + +(if archive-mode-map nil + (setq archive-mode-map (make-keymap)) + (suppress-keymap archive-mode-map) + (define-key archive-mode-map " " 'archive-next-line) + (define-key archive-mode-map "a" 'archive-alternate-display) + ;;(define-key archive-mode-map "c" 'archive-copy) + (define-key archive-mode-map "d" 'archive-flag-deleted) + (define-key archive-mode-map "\C-d" 'archive-flag-deleted) + (define-key archive-mode-map "e" 'archive-extract) + (define-key archive-mode-map "f" 'archive-extract) + (define-key archive-mode-map "\C-m" 'archive-extract) + (define-key archive-mode-map [mouse-2] 'archive-mouse-extract) + (define-key archive-mode-map "g" 'revert-buffer) + (define-key archive-mode-map "h" 'describe-mode) + (define-key archive-mode-map "m" 'archive-mark) + (define-key archive-mode-map "n" 'archive-next-line) + (define-key archive-mode-map "\C-n" 'archive-next-line) + (define-key archive-mode-map [down] 'archive-next-line) + (define-key archive-mode-map "o" 'archive-extract-other-window) + (define-key archive-mode-map "p" 'archive-previous-line) + (define-key archive-mode-map "\C-p" 'archive-previous-line) + (define-key archive-mode-map [up] 'archive-previous-line) + (define-key archive-mode-map "r" 'archive-rename-entry) + (define-key archive-mode-map "u" 'archive-unflag) + (define-key archive-mode-map "\M-\C-?" 'archive-unmark-all-files) + (define-key archive-mode-map "v" 'archive-view) + (define-key archive-mode-map "x" 'archive-expunge) + (define-key archive-mode-map "\177" 'archive-unflag-backwards) + (define-key archive-mode-map "E" 'archive-extract-other-window) + (define-key archive-mode-map "M" 'archive-chmod-entry) + (define-key archive-mode-map "G" 'archive-chgrp-entry) + (define-key archive-mode-map "O" 'archive-chown-entry) + (substitute-key-definition 'undo 'archive-undo archive-mode-map global-map) + + ;; Get rid of the Edit menu bar item to save space. + (define-key archive-mode-map [menu-bar edit] 'undefined) + + (define-key archive-mode-map [menu-bar immediate] + (cons "Immediate" (make-sparse-keymap "Immediate"))) + (define-key archive-mode-map [menu-bar immediate alternate] + '("Alternate Display" . archive-alternate-display)) + (put 'archive-alternate-display 'menu-enable + '(boundp (archive-name "alternate-display"))) + (define-key archive-mode-map [menu-bar immediate view] + '("View This File" . archive-view)) + (define-key archive-mode-map [menu-bar immediate display] + '("Display in Other Window" . archive-display-other-window)) + (define-key archive-mode-map [menu-bar immediate find-file-other-window] + '("Find in Other Window" . archive-extract-other-window)) + (define-key archive-mode-map [menu-bar immediate find-file] + '("Find This File" . archive-extract)) + + (define-key archive-mode-map [menu-bar mark] + (cons "Mark" (make-sparse-keymap "Mark"))) + (define-key archive-mode-map [menu-bar mark unmark-all] + '("Unmark All" . archive-unmark-all-files)) + (define-key archive-mode-map [menu-bar mark deletion] + '("Flag" . archive-flag-deleted)) + (define-key archive-mode-map [menu-bar mark unmark] + '("Unflag" . archive-unflag)) + (define-key archive-mode-map [menu-bar mark mark] + '("Mark" . archive-mark)) + + (define-key archive-mode-map [menu-bar operate] + (cons "Operate" (make-sparse-keymap "Operate"))) + (define-key archive-mode-map [menu-bar operate chown] + '("Change Owner..." . archive-chown-entry)) + (put 'archive-chown-entry 'menu-enable + '(fboundp (archive-name "chown-entry"))) + (define-key archive-mode-map [menu-bar operate chgrp] + '("Change Group..." . archive-chgrp-entry)) + (put 'archive-chgrp-entry 'menu-enable + '(fboundp (archive-name "chgrp-entry"))) + (define-key archive-mode-map [menu-bar operate chmod] + '("Change Mode..." . archive-chmod-entry)) + (put 'archive-chmod-entry 'menu-enable + '(fboundp (archive-name "chmod-entry"))) + (define-key archive-mode-map [menu-bar operate rename] + '("Rename to..." . archive-rename-entry)) + (put 'archive-rename-entry 'menu-enable + '(fboundp (archive-name "rename-entry"))) + ;;(define-key archive-mode-map [menu-bar operate copy] + ;; '("Copy to..." . archive-copy)) + (define-key archive-mode-map [menu-bar operate expunge] + '("Expunge Marked Files" . archive-expunge)) + ) + +(let* ((item1 '(archive-subfile-mode " Archive")) + (item2 '(archive-subfile-dos " Dos")) + (items (if (memq system-type '(ms-dos windows-nt)) + (list item1) ; msdog has its own indicator + (list item1 item2)))) + (or (member item1 minor-mode-alist) + (setq minor-mode-alist (append items minor-mode-alist)))) +;; ------------------------------------------------------------------------- +(defun archive-find-type () + (widen) + (goto-char (point-min)) + ;; The funny [] here make it unlikely that the .elc file will be treated + ;; as an archive by other software. + (let (case-fold-search) + (cond ((looking-at "[P]K\003\004") 'zip) + ((looking-at "..-l[hz][0-9]-") 'lzh) + ((looking-at "....................[\334]\247\304\375") 'zoo) + ((and (looking-at "\C-z") ; signature too simple, IMHO + (string-match "\\.[aA][rR][cC]$" + (or buffer-file-name (buffer-name)))) + 'arc) + (t (error "Buffer format not recognized."))))) +;; ------------------------------------------------------------------------- +(defun archive-summarize () + "Parse the contents of the archive file in the current buffer. +Place a dired-like listing on the front; +then narrow to it, so that only that listing +is visible (and the real data of the buffer is hidden)." + (widen) + (let (buffer-read-only) + (message "Parsing archive file...") + (buffer-disable-undo (current-buffer)) + (setq archive-files (funcall (archive-name "summarize"))) + (message "Parsing archive file...done.") + (setq archive-proper-file-start (point-marker)) + (narrow-to-region (point-min) (point)) + (set-buffer-modified-p nil) + (buffer-enable-undo)) + (goto-char archive-file-list-start) + (archive-next-line 0)) + +(defun archive-resummarize () + "Recreate the contents listing of an archive." + (let ((modified (buffer-modified-p)) + (no (archive-get-lineno)) + buffer-read-only) + (widen) + (delete-region (point-min) archive-proper-file-start) + (archive-summarize) + (set-buffer-modified-p modified) + (goto-char archive-file-list-start) + (archive-next-line no))) + +(defun archive-summarize-files (files) + "Insert a desciption of a list of files annotated with proper mouse face" + (setq archive-file-list-start (point-marker)) + (setq archive-file-name-indent (if files (aref (car files) 1) 0)) + ;; We don't want to do an insert for each element since that takes too + ;; long when the archive -- which has to be moved in memory -- is large. + (insert + (apply + (function concat) + (mapcar + (lambda (fil) + ;; Using `concat' here copies the text also, so we can add + ;; properties without problems. + (let ((text (concat (aref fil 0) "\n"))) + (put-text-property (aref fil 1) (aref fil 2) + 'mouse-face 'highlight + text) + text)) + files))) + (setq archive-file-list-end (point-marker))) + +(defun archive-alternate-display () + "Toggle alternative display. To avoid very long lines some archive mode +don't show all information. This function changes the set of information +shown for each files." + (interactive) + (setq archive-alternate-display (not archive-alternate-display)) + (archive-resummarize)) +;; ------------------------------------------------------------------------- +;; Section: Local archive copy handling + +(defun archive-maybe-copy (archive) + (if archive-remote + (let ((start (point-max))) + (setq archive-local-name (expand-file-name + (file-name-nondirectory archive) + archive-tmpdir)) + (make-directory archive-tmpdir t) + (save-restriction + (widen) + (write-region start (point-max) archive-local-name nil 'nomessage)) + archive-local-name) + (if (buffer-modified-p) (save-buffer)) + archive)) + +(defun archive-maybe-update (unchanged) + (if archive-remote + (let ((name archive-local-name) + (modified (buffer-modified-p)) + buffer-read-only) + (if unchanged nil + (erase-buffer) + (insert-file-contents name) + (archive-mode t)) + (archive-delete-local name) + (if (not unchanged) + (message "Archive file must be saved for changes to take effect")) + (set-buffer-modified-p (or modified (not unchanged)))))) + +(defun archive-delete-local (name) + "Delete (robust) the file NAME and its parents up to and including the +value of `archive-tmpdir'." + (let ((again t) + (top (directory-file-name (file-name-as-directory archive-tmpdir)))) + (condition-case nil + (delete-file name) + (error nil)) + (while again + (setq name (directory-file-name (file-name-directory name))) + (condition-case nil + (delete-directory name) + (error nil)) + (if (string= name top) (setq again nil))))) +;; ------------------------------------------------------------------------- +;; Section: Member extraction + +(defun archive-mouse-extract (event) + "Extract a file whose name you click on." + (interactive "e") + (save-excursion + (set-buffer (window-buffer (posn-window (event-end event)))) + (save-excursion + (goto-char (posn-point (event-end event))) + ;; Just make sure this doesn't get an error. + (archive-get-descr))) + (select-window (posn-window (event-end event))) + (goto-char (posn-point (event-end event))) + (archive-extract)) + +(defun archive-extract (&optional other-window-p) + "In archive mode, extract this entry of the archive into its own buffer." + (interactive) + (let* ((view-p (eq other-window-p 'view)) + (descr (archive-get-descr)) + (ename (aref descr 0)) + (iname (aref descr 1)) + (archive-buffer (current-buffer)) + (arcdir default-directory) + (archive (buffer-file-name)) + (arcname (file-name-nondirectory archive)) + (bufname (concat (file-name-nondirectory iname) " (" arcname ")")) + (extractor (archive-name "extract")) + (read-only-p (or archive-read-only view-p)) + (buffer (get-buffer bufname)) + (just-created nil)) + (if buffer + nil + (setq archive (archive-maybe-copy archive)) + (setq buffer (get-buffer-create bufname)) + (setq just-created t) + (save-excursion + (set-buffer buffer) + (setq buffer-file-name + (expand-file-name (concat arcname ":" iname))) + (setq buffer-file-truename + (abbreviate-file-name buffer-file-name)) + ;; Set the default-directory to the dir of the superior buffer. + (setq default-directory arcdir) + (make-local-variable 'archive-superior-buffer) + (setq archive-superior-buffer archive-buffer) + (make-local-variable 'local-write-file-hooks) + (add-hook 'local-write-file-hooks 'archive-write-file-member) + (setq archive-subfile-mode descr) + (setq archive-subfile-dos nil + buffer-file-type t) + (if (fboundp extractor) + (funcall extractor archive ename) + (archive-*-extract archive ename (symbol-value extractor))) + (if archive-dos-members (archive-check-dos)) + (goto-char (point-min)) + (rename-buffer bufname) + (setq buffer-read-only read-only-p) + (setq buffer-undo-list nil) + (set-buffer-modified-p nil) + (setq buffer-saved-size (buffer-size)) + (normal-mode) + ;; Just in case an archive occurs inside another archive. + (if (eq major-mode 'archive-mode) + (setq archive-remote t)) + (run-hooks 'archive-extract-hooks)) + (archive-maybe-update t)) + (if view-p + (progn + (view-buffer buffer) + (and just-created (setq view-exit-action 'kill-buffer))) + (if (eq other-window-p 'display) + (display-buffer buffer) + (if other-window-p + (switch-to-buffer-other-window buffer) + (switch-to-buffer buffer)))))) + +(defun archive-*-extract (archive name command) + (let* ((default-directory (file-name-as-directory archive-tmpdir)) + (tmpfile (expand-file-name (file-name-nondirectory name) + default-directory))) + (make-directory (directory-file-name default-directory) t) + (apply 'call-process + (car command) + nil + nil + nil + (append (cdr command) (list archive name))) + (insert-file-contents tmpfile) + (archive-delete-local tmpfile))) + +(defun archive-extract-by-stdout (archive name command) + (let ((binary-process-output t)) ; for Ms-Dos + (apply 'call-process + (car command) + nil + t + nil + (append (cdr command) (list archive name))))) + +(defun archive-extract-other-window () + "In archive mode, find this member in another window." + (interactive) + (archive-extract t)) + +(defun archive-display-other-window () + "In archive mode, display this member in another window." + (interactive) + (archive-extract 'display)) + +(defun archive-view () + "In archive mode, view the member on this line." + (interactive) + (archive-extract 'view)) + +(defun archive-add-new-member (arcbuf name) + "Add the file in the current buffer to the archive in ARCBUF naming it +NAME." + (interactive + (list (get-buffer + (read-buffer "Buffer containing archive: " + ;; Find first archive buffer and suggest that + (let ((bufs (buffer-list))) + (while (and bufs (not (eq (save-excursion + (set-buffer (car bufs)) + major-mode) + 'archive-mode))) + (setq bufs (cdr bufs))) + (if bufs + (car bufs) + (error "There are no archive buffers"))) + t)) + (read-string "File name in archive: " + (if buffer-file-name + (file-name-nondirectory buffer-file-name) + "")))) + (save-excursion + (set-buffer arcbuf) + (or (eq major-mode 'archive-mode) + (error "Buffer is not an archive buffer")) + (if archive-read-only + (error "Archive is read-only"))) + (if (eq arcbuf (current-buffer)) + (error "An archive buffer cannot be added to itself")) + (if (string= name "") + (error "Archive members may not be given empty names")) + (let ((func (save-excursion (set-buffer arcbuf) + (archive-name "add-new-member"))) + (membuf (current-buffer))) + (if (fboundp func) + (save-excursion + (set-buffer arcbuf) + (funcall func buffer-file-name membuf name)) + (error "Adding a new member is not supported for this archive type")))) +;; ------------------------------------------------------------------------- +;; Section: IO stuff + +(defun archive-check-dos (&optional force) + "*If this looks like a buffer with ^M^J as line terminator then remove +those ^Ms and set archive-subfile-dos." + (save-restriction + (widen) + (save-excursion + (goto-char (point-min)) + (setq archive-subfile-dos + (or force (not (search-forward-regexp "[^\r]\n" nil t)))) + (setq buffer-file-type (not archive-subfile-dos)) + (if archive-subfile-dos + (let ((modified (buffer-modified-p))) + (buffer-disable-undo (current-buffer)) + (goto-char (point-min)) + (while (search-forward "\r\n" nil t) + (replace-match "\n")) + (buffer-enable-undo) + (set-buffer-modified-p modified)))))) + +(defun archive-write-file-member () + (if archive-subfile-dos + (save-restriction + (widen) + (save-excursion + (goto-char (point-min)) + ;; We don't want our ^M^J <--> ^J changes to show in the undo list + (let ((undo-list buffer-undo-list)) + (unwind-protect + (progn + (setq buffer-undo-list t) + (while (search-forward "\n" nil t) + (replace-match "\r\n")) + (setq archive-subfile-dos nil) + (setq buffer-file-type t) + ;; OK, we're now have explicit ^M^Js -- save and re-unixfy + (archive-write-file-member)) + (progn + (archive-check-dos t) + (setq buffer-undo-list undo-list)))) + t)) + (save-excursion + (save-restriction + (message "Updating archive...") + (widen) + (let ((writer (save-excursion (set-buffer archive-superior-buffer) + (archive-name "write-file-member"))) + (archive (save-excursion (set-buffer archive-superior-buffer) + (buffer-file-name)))) + (if (fboundp writer) + (funcall writer archive archive-subfile-mode) + (archive-*-write-file-member archive + archive-subfile-mode + (symbol-value writer)))) + (set-buffer-modified-p nil) + (message "Updating archive...done") + (set-buffer archive-superior-buffer) + (revert-buffer) + t)))) + +(defun archive-*-write-file-member (archive descr command) + (let* ((ename (aref descr 0)) + (tmpfile (expand-file-name ename archive-tmpdir)) + (top (directory-file-name (file-name-as-directory archive-tmpdir))) + (default-directory (file-name-as-directory top))) + (unwind-protect + (progn + (make-directory (file-name-directory tmpfile) t) + (write-region (point-min) (point-max) tmpfile nil 'nomessage) + (if (aref descr 3) + ;; Set the file modes, but make sure we can read it. + (set-file-modes tmpfile (logior ?\400 (aref descr 3)))) + (let ((exitcode (apply 'call-process + (car command) + nil + nil + nil + (append (cdr command) (list archive ename))))) + (if (equal exitcode 0) + nil + (error "Updating was unsuccessful (%S)" exitcode)))) + (archive-delete-local tmpfile)))) + +(defun archive-write-file () + (save-excursion + (write-region archive-proper-file-start (point-max) buffer-file-name nil t) + (set-buffer-modified-p nil) + t)) +;; ------------------------------------------------------------------------- +;; Section: Marking and unmarking. + +(defun archive-flag-deleted (p &optional type) + "In archive mode, mark this member to be deleted from the archive. +With a prefix argument, mark that many files." + (interactive "p") + (or type (setq type ?D)) + (beginning-of-line) + (let ((sign (if (>= p 0) +1 -1)) + (modified (buffer-modified-p)) + buffer-read-only) + (while (not (zerop p)) + (if (archive-get-descr t) + (progn + (delete-char 1) + (insert type))) + (forward-line sign) + (setq p (- p sign))) + (set-buffer-modified-p modified)) + (archive-next-line 0)) + +(defun archive-unflag (p) + "In archive mode, un-mark this member if it is marked to be deleted. +With a prefix argument, un-mark that many files forward." + (interactive "p") + (archive-flag-deleted p ? )) + +(defun archive-unflag-backwards (p) + "In archive mode, un-mark this member if it is marked to be deleted. +With a prefix argument, un-mark that many members backward." + (interactive "p") + (archive-flag-deleted (- p) ? )) + +(defun archive-unmark-all-files () + "Remove all marks." + (interactive) + (let ((modified (buffer-modified-p)) + buffer-read-only) + (save-excursion + (goto-char archive-file-list-start) + (while (< (point) archive-file-list-end) + (or (= (following-char) ? ) + (progn (delete-char 1) (insert ? ))) + (forward-line 1))) + (set-buffer-modified-p modified))) + +(defun archive-mark (p) + "In archive mode, mark this member for group operations. +With a prefix argument, mark that many members. +Use \\[archive-unmark-all-files] to remove all marks." + (interactive "p") + (archive-flag-deleted p ?*)) + +(defun archive-get-marked (mark &optional default) + (let (files) + (save-excursion + (goto-char archive-file-list-start) + (while (< (point) archive-file-list-end) + (if (= (following-char) mark) + (setq files (cons (archive-get-descr) files))) + (forward-line 1))) + (or (nreverse files) + (and default + (list (archive-get-descr)))))) +;; ------------------------------------------------------------------------- +;; Section: Operate + +(defun archive-next-line (p) + (interactive "p") + (forward-line p) + (or (eobp) + (forward-char archive-file-name-indent))) + +(defun archive-previous-line (p) + (interactive "p") + (archive-next-line (- p))) + +(defun archive-chmod-entry (new-mode) + "Change the protection bits associated with all marked or this member +in the archive.\n\ +The new protection bits can either be specified as an octal number or +as a relative change like \"g+rw\" as for chmod(2)" + (interactive "sNew mode (octal or relative): ") + (if archive-read-only (error "Archive is read-only")) + (let ((func (archive-name "chmod-entry"))) + (if (fboundp func) + (progn + (funcall func new-mode (archive-get-marked ?* t)) + (archive-resummarize)) + (error "Setting mode bits is not supported for this archive type")))) + +(defun archive-chown-entry (new-uid) + "Change the owner of all marked or this member." + (interactive "nNew uid: ") + (if archive-read-only (error "Archive is read-only")) + (let ((func (archive-name "chown-entry"))) + (if (fboundp func) + (progn + (funcall func new-uid (archive-get-marked ?* t)) + (archive-resummarize)) + (error "Setting owner is not supported for this archive type")))) + +(defun archive-chgrp-entry (new-gid) + "Change the group of all marked or this member." + (interactive "nNew gid: ") + (if archive-read-only (error "Archive is read-only")) + (let ((func (archive-name "chgrp-entry"))) + (if (fboundp func) + (progn + (funcall func new-gid (archive-get-marked ?* t)) + (archive-resummarize)) + (error "Setting group is not supported for this archive type")))) + +(defun archive-expunge () + "Do the flagged deletions." + (interactive) + (let (files) + (save-excursion + (goto-char archive-file-list-start) + (while (< (point) archive-file-list-end) + (if (= (following-char) ?D) + (setq files (cons (aref (archive-get-descr) 0) files))) + (forward-line 1))) + (setq files (nreverse files)) + (and files + (or (not archive-read-only) + (error "Archive is read-only")) + (or (yes-or-no-p (format "Really delete %d member%s? " + (length files) + (if (null (cdr files)) "" "s"))) + (error "Operation aborted")) + (let ((archive (archive-maybe-copy (buffer-file-name))) + (expunger (archive-name "expunge"))) + (if (fboundp expunger) + (funcall expunger archive files) + (archive-*-expunge archive files (symbol-value expunger))) + (archive-maybe-update nil) + (if archive-remote + (archive-resummarize) + (revert-buffer)))))) + +(defun archive-*-expunge (archive files command) + (apply 'call-process + (car command) + nil + nil + nil + (append (cdr command) (cons archive files)))) + +(defun archive-rename-entry (newname) + "Change the name associated with this entry in the tar file." + (interactive "sNew name: ") + (if archive-read-only (error "Archive is read-only")) + (if (string= newname "") + (error "Archive members may not be given empty names")) + (let ((func (archive-name "rename-entry")) + (descr (archive-get-descr))) + (if (fboundp func) + (progn + (funcall func (buffer-file-name) newname descr) + (archive-resummarize)) + (error "Renaming is not supported for this archive type")))) + +;; Revert the buffer and recompute the dired-like listing. +(defun archive-mode-revert (&optional no-autosave no-confirm) + (let ((no (archive-get-lineno))) + (setq archive-files nil) + (let ((revert-buffer-function nil)) + (revert-buffer t t)) + (archive-mode) + (goto-char archive-file-list-start) + (archive-next-line no))) + +(defun archive-undo () + "Undo in an archive buffer. +This doesn't recover lost files, it just undoes changes in the buffer itself." + (interactive) + (let (buffer-read-only) + (undo))) +;; ------------------------------------------------------------------------- +;; Section: Arc Archives + +(defun archive-arc-summarize () + (let ((p 1) + (totalsize 0) + (maxlen 8) + files + visual) + (while (and (< (+ p 29) (point-max)) + (= (char-after p) ?\C-z) + (> (char-after (1+ p)) 0)) + (let* ((namefld (buffer-substring (+ p 2) (+ p 2 13))) + (fnlen (or (string-match "\0" namefld) 13)) + (efnname (substring namefld 0 fnlen)) + (csize (archive-l-e (+ p 15) 4)) + (moddate (archive-l-e (+ p 19) 2)) + (modtime (archive-l-e (+ p 21) 2)) + (ucsize (archive-l-e (+ p 25) 4)) + (fiddle (string= efnname (upcase efnname))) + (ifnname (if fiddle (downcase efnname) efnname)) + (text (format " %8d %-11s %-8s %s" + ucsize + (archive-dosdate moddate) + (archive-dostime modtime) + ifnname))) + (setq maxlen (max maxlen fnlen) + totalsize (+ totalsize ucsize) + visual (cons (vector text + (- (length text) (length ifnname)) + (length text)) + visual) + files (cons (vector efnname ifnname fiddle nil (1- p)) + files) + p (+ p 29 csize)))) + (goto-char (point-min)) + (let ((dash (concat "- -------- ----------- -------- " + (make-string maxlen ?-) + "\n"))) + (insert "M Length Date Time File\n" + dash) + (archive-summarize-files (nreverse visual)) + (insert dash + (format " %8d %d file%s" + totalsize + (length files) + (if (= 1 (length files)) "" "s")) + "\n")) + (apply 'vector (nreverse files)))) + +(defun archive-arc-rename-entry (archive newname descr) + (if (string-match "[:\\\\/]" newname) + (error "File names in arc files may not contain a path")) + (if (> (length newname) 12) + (error "File names in arc files are limited to 12 characters")) + (let ((name (concat newname (substring "\0\0\0\0\0\0\0\0\0\0\0\0\0" + (length newname)))) + buffer-read-only) + (save-restriction + (save-excursion + (widen) + (goto-char (+ archive-proper-file-start (aref descr 4) 2)) + (delete-char 13) + (insert name))))) +;; ------------------------------------------------------------------------- +;; Section: Lzh Archives + +(defun archive-lzh-summarize () + (let ((p 1) + (totalsize 0) + (maxlen 8) + files + visual) + (while (progn (goto-char p) (looking-at "..-l[hz][0-9]-")) + (let* ((hsize (char-after p)) + (csize (archive-l-e (+ p 7) 4)) + (ucsize (archive-l-e (+ p 11) 4)) + (modtime (archive-l-e (+ p 15) 2)) + (moddate (archive-l-e (+ p 17) 2)) + (fnlen (char-after (+ p 21))) + (efnname (buffer-substring (+ p 22) (+ p 22 fnlen))) + (fiddle (string= efnname (upcase efnname))) + (ifnname (if fiddle (downcase efnname) efnname)) + (p2 (+ p 22 fnlen)) + (creator (if (>= (- hsize fnlen) 24) (char-after (+ p2 2)) 0)) + (mode (if (= creator ?U) (archive-l-e (+ p2 8) 2) ?\666)) + (modestr (if mode (archive-int-to-mode mode) "??????????")) + (uid (if (= creator ?U) (archive-l-e (+ p2 10) 2))) + (gid (if (= creator ?U) (archive-l-e (+ p2 12) 2))) + (text (if archive-alternate-display + (format " %8d %5S %5S %s" + ucsize + (or uid "?") + (or gid "?") + ifnname) + (format " %10s %8d %-11s %-8s %s" + modestr + ucsize + (archive-dosdate moddate) + (archive-dostime modtime) + ifnname)))) + (setq maxlen (max maxlen fnlen) + totalsize (+ totalsize ucsize) + visual (cons (vector text + (- (length text) (length ifnname)) + (length text)) + visual) + files (cons (vector efnname ifnname fiddle mode (1- p)) + files) + p (+ p hsize 2 csize)))) + (goto-char (point-min)) + (let ((dash (concat (if archive-alternate-display + "- -------- ----- ----- " + "- ---------- -------- ----------- -------- ") + (make-string maxlen ?-) + "\n")) + (header (if archive-alternate-display + "M Length Uid Gid File\n" + "M Filemode Length Date Time File\n")) + (sumline (if archive-alternate-display + " %8d %d file%s" + " %8d %d file%s"))) + (insert header dash) + (archive-summarize-files (nreverse visual)) + (insert dash + (format sumline + totalsize + (length files) + (if (= 1 (length files)) "" "s")) + "\n")) + (apply 'vector (nreverse files)))) + +(defconst archive-lzh-alternate-display t) + +(defun archive-lzh-extract (archive name) + (archive-extract-by-stdout archive name archive-lzh-extract)) + +(defun archive-lzh-resum (p count) + (let ((sum 0)) + (while (> count 0) + (setq count (1- count) + sum (+ sum (char-after p)) + p (1+ p))) + (logand sum 255))) + +(defun archive-lzh-rename-entry (archive newname descr) + (save-restriction + (save-excursion + (widen) + (let* ((p (+ archive-proper-file-start (aref descr 4))) + (oldhsize (char-after p)) + (oldfnlen (char-after (+ p 21))) + (newfnlen (length newname)) + (newhsize (+ oldhsize newfnlen (- oldfnlen))) + buffer-read-only) + (if (> newhsize 255) + (error "The file name is too long")) + (goto-char (+ p 21)) + (delete-char (1+ oldfnlen)) + (insert newfnlen newname) + (goto-char p) + (delete-char 2) + (insert newhsize (archive-lzh-resum p newhsize)))))) + +(defun archive-lzh-ogm (newval files errtxt ofs) + (save-restriction + (save-excursion + (widen) + (while files + (let* ((fil (car files)) + (p (+ archive-proper-file-start (aref fil 4))) + (hsize (char-after p)) + (fnlen (char-after (+ p 21))) + (p2 (+ p 22 fnlen)) + (creator (if (>= (- hsize fnlen) 24) (char-after (+ p2 2)) 0)) + buffer-read-only) + (if (= creator ?U) + (progn + (or (numberp newval) + (setq newval (funcall newval (archive-l-e (+ p2 ofs) 2)))) + (goto-char (+ p2 ofs)) + (delete-char 2) + (insert (logand newval 255) (lsh newval -8)) + (goto-char (1+ p)) + (delete-char 1) + (insert (archive-lzh-resum (1+ p) hsize))) + (message "Member %s does not have %s field" + (aref fil 1) errtxt))) + (setq files (cdr files)))))) + +(defun archive-lzh-chown-entry (newuid files) + (archive-lzh-ogm newuid files "an uid" 10)) + +(defun archive-lzh-chgrp-entry (newgid files) + (archive-lzh-ogm newgid files "a gid" 12)) + +(defun archive-lzh-chmod-entry (newmode files) + (archive-lzh-ogm + ;; This should work even though newmode will be dynamically accessed. + (lambda (old) (archive-calc-mode old newmode t)) + files "a unix-style mode" 8)) +;; ------------------------------------------------------------------------- +;; Section: Zip Archives + +(defun archive-zip-summarize () + (goto-char (- (point-max) (- 22 18))) + (search-backward-regexp "[P]K\005\006") + (let ((p (1+ (archive-l-e (+ (point) 16) 4))) + (maxlen 8) + (totalsize 0) + files + visual) + (while (string= "PK\001\002" (buffer-substring p (+ p 4))) + (let* ((creator (char-after (+ p 5))) + (method (archive-l-e (+ p 10) 2)) + (modtime (archive-l-e (+ p 12) 2)) + (moddate (archive-l-e (+ p 14) 2)) + (ucsize (archive-l-e (+ p 24) 4)) + (fnlen (archive-l-e (+ p 28) 2)) + (exlen (archive-l-e (+ p 30) 2)) + (lheader (archive-l-e (+ p 42) 4)) + (efnname (buffer-substring (+ p 46) (+ p 46 fnlen))) + (isdir (and (= ucsize 0) + (string= (file-name-nondirectory efnname) ""))) + (mode (cond ((memq creator '(2 3)) ; Unix + VMS + (archive-l-e (+ p 40) 2)) + ((memq creator '(0 5 6 7 10 11)) ; Dos etc. + (logior ?\444 + (if isdir (logior 16384 ?\111) 0) + (if (zerop + (logand 1 (char-after (+ p 38)))) + ?\222 0))) + (t nil))) + (modestr (if mode (archive-int-to-mode mode) "??????????")) + (fiddle (and archive-zip-case-fiddle + (not (not (memq creator '(0 2 4 5 9)))))) + (ifnname (if fiddle (downcase efnname) efnname)) + (text (format " %10s %8d %-11s %-8s %s" + modestr + ucsize + (archive-dosdate moddate) + (archive-dostime modtime) + ifnname))) + (setq maxlen (max maxlen fnlen) + totalsize (+ totalsize ucsize) + visual (cons (vector text + (- (length text) (length ifnname)) + (length text)) + visual) + files (cons (if isdir + nil + (vector efnname ifnname fiddle mode + (list (1- p) lheader))) + files) + p (+ p 46 fnlen exlen)))) + (goto-char (point-min)) + (let ((dash (concat "- ---------- -------- ----------- -------- " + (make-string maxlen ?-) + "\n"))) + (insert "M Filemode Length Date Time File\n" + dash) + (archive-summarize-files (nreverse visual)) + (insert dash + (format " %8d %d file%s" + totalsize + (length files) + (if (= 1 (length files)) "" "s")) + "\n")) + (apply 'vector (nreverse files)))) + +(defun archive-zip-extract (archive name) + (if archive-zip-use-pkzip + (archive-*-extract archive name archive-zip-extract) + (archive-extract-by-stdout archive name archive-zip-extract))) + +(defun archive-zip-write-file-member (archive descr) + (archive-*-write-file-member + archive + descr + (if (aref descr 2) archive-zip-update-case archive-zip-update))) + +(defun archive-zip-chmod-entry (newmode files) + (save-restriction + (save-excursion + (widen) + (while files + (let* ((fil (car files)) + (p (+ archive-proper-file-start (car (aref fil 4)))) + (creator (char-after (+ p 5))) + (oldmode (aref fil 3)) + (newval (archive-calc-mode oldmode newmode t)) + buffer-read-only) + (cond ((memq creator '(2 3)) ; Unix + VMS + (goto-char (+ p 40)) + (delete-char 2) + (insert (logand newval 255) (lsh newval -8))) + ((memq creator '(0 5 6 7 10 11)) ; Dos etc. + (goto-char (+ p 38)) + (insert (logior (logand (char-after (point)) 254) + (logand (logxor 1 (lsh newval -7)) 1))) + (delete-char 1)) + (t (message "Don't know how to change mode for this member")))) + (setq files (cdr files)))))) +;; ------------------------------------------------------------------------- +;; Section: Zoo Archives + +(defun archive-zoo-summarize () + (let ((p (1+ (archive-l-e 25 4))) + (maxlen 8) + (totalsize 0) + files + visual) + (while (and (string= "\334\247\304\375" (buffer-substring p (+ p 4))) + (> (archive-l-e (+ p 6) 4) 0)) + (let* ((next (1+ (archive-l-e (+ p 6) 4))) + (moddate (archive-l-e (+ p 14) 2)) + (modtime (archive-l-e (+ p 16) 2)) + (ucsize (archive-l-e (+ p 20) 4)) + (namefld (buffer-substring (+ p 38) (+ p 38 13))) + (fnlen (or (string-match "\0" namefld) 13)) + (efnname (substring namefld 0 fnlen)) + (fiddle (string= efnname (upcase efnname))) + (ifnname (if fiddle (downcase efnname) efnname)) + (text (format " %8d %-11s %-8s %s" + ucsize + (archive-dosdate moddate) + (archive-dostime modtime) + ifnname))) + (setq maxlen (max maxlen fnlen) + totalsize (+ totalsize ucsize) + visual (cons (vector text + (- (length text) (length ifnname)) + (length text)) + visual) + files (cons (vector efnname ifnname fiddle nil (1- p)) + files) + p next))) + (goto-char (point-min)) + (let ((dash (concat "- -------- ----------- -------- " + (make-string maxlen ?-) + "\n"))) + (insert "M Length Date Time File\n" + dash) + (archive-summarize-files (nreverse visual)) + (insert dash + (format " %8d %d file%s" + totalsize + (length files) + (if (= 1 (length files)) "" "s")) + "\n")) + (apply 'vector (nreverse files)))) + +(defun archive-zoo-extract (archive name) + (archive-extract-by-stdout archive name archive-zoo-extract)) +;; ------------------------------------------------------------------------- +(provide 'archive-mode) + +;; arc-mode.el ends here. -- 2.39.2