;;; arc-mode.el --- simple editing of archives
-;; Copyright (C) 1995, 1997 Free Software Foundation, Inc.
+;; Copyright (C) 1995, 1997, 1998, 2001, 2002, 2003, 2004,
+;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
-;; Author: Morten Welinder <terra@diku.dk>
+;; Author: Morten Welinder <terra@gnu.org>
;; Keywords: archives msdog editing major-mode
;; Favourite-brand-of-beer: None, I hate beer.
;; 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)
+;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; 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, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;
;; LZH A series of (header,file). Headers are checksummed. No
;; interaction among members.
+;; Headers come in three flavours called level 0, 1 and 2 headers.
+;; Level 2 header is free of DOS specific restrictions and most
+;; prevalently used. Also level 1 and 2 headers consist of base
+;; and extension headers. For more details see
+;; http://homepage1.nifty.com/dangan/en/Content/Program/Java/jLHA/Notes/Notes.html
+;; http://www.osirusoft.com/joejared/lzhformat.html
;;
;; ZIP A series of (lheader,fil) followed by a "central directory"
;; which is a series of (cheader) followed by an end-of-
;; Each member header points to the next. The archive is
;; terminated by a bogus header with a zero next link.
;; -------------------------------------
-;; HOOKS: `foo' means one the the supported archive types.
+;; HOOKS: `foo' means one of the supported archive types.
;;
;; archive-mode-hook
;; archive-foo-mode-hook
:group 'archive)
(defcustom 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"
+ ;; make-temp-name is safe here because we use this name
+ ;; to create a directory.
+ (make-temp-name
+ (expand-file-name (if (eq system-type 'ms-dos) "ar" "archive.tmp")
+ temporary-file-directory))
+ "Directory for temporary files made by `arc-mode.el'."
:type 'directory
:group 'archive)
;; ------------------------------
;; Zip archive configuration
-(defcustom archive-zip-use-pkzip (memq system-type '(ms-dos windows-nt))
- "*If non-nil then pkzip option are used instead of zip options.
-Only set to true for msdog systems!"
- :type 'boolean
- :group 'archive-zip)
-
(defcustom archive-zip-extract
- (if archive-zip-use-pkzip '("pkunzip" "-e" "-o-") '("unzip" "-qq" "-c"))
+ (if (and (not (executable-find "unzip"))
+ (executable-find "pkunzip"))
+ '("pkunzip" "-e" "-o-")
+ '("unzip" "-qq" "-c"))
"*Program and its options to run in order to extract a zip file member.
Extraction should happen to standard output. Archive and member name will
-be added. 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."
+be added."
:type '(list (string :tag "Program")
(repeat :tag "Options"
:inline t
;; names.
(defcustom archive-zip-expunge
- (if archive-zip-use-pkzip '("pkzip" "-d") '("zip" "-d" "-q"))
+ (if (and (not (executable-find "zip"))
+ (executable-find "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."
:type '(list (string :tag "Program")
:group 'archive-zip)
(defcustom archive-zip-update
- (if archive-zip-use-pkzip '("pkzip" "-u") '("zip" "-q"))
+ (if (and (not (executable-find "zip"))
+ (executable-find "pkzip"))
+ '("pkzip" "-u" "-P")
+ '("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."
:group 'archive-zip)
(defcustom archive-zip-update-case
- (if archive-zip-use-pkzip archive-zip-update '("zip" "-q" "-k"))
+ (if (and (not (executable-find "zip"))
+ (executable-find "pkzip"))
+ '("pkzip" "-u" "-P")
+ '("zip" "-q" "-k"))
"*Program and its options to run in order to update a case fiddled zip member.
Options should ensure that specified directory will be put into the zip file.
Archive and member name will be added."
:group 'archive-zip)
(defcustom archive-zip-case-fiddle t
- "*If non-nil then zip file members are case fiddled.
-Case fiddling will only happen for members created by a system that
-uses caseless file names."
+ "*If non-nil then zip file members may be down-cased.
+This case fiddling will only happen for members created by a system
+that uses caseless file names."
:type 'boolean
:group 'archive-zip)
;; ------------------------------
;; -------------------------------------------------------------------------
;; 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-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-local-name nil "Name of local copy of remote archive.")
+(defvar archive-mode-map
+ (let ((map (make-keymap)))
+ (suppress-keymap map)
+ (define-key map " " 'archive-next-line)
+ (define-key map "a" 'archive-alternate-display)
+ ;;(define-key map "c" 'archive-copy)
+ (define-key map "d" 'archive-flag-deleted)
+ (define-key map "\C-d" 'archive-flag-deleted)
+ (define-key map "e" 'archive-extract)
+ (define-key map "f" 'archive-extract)
+ (define-key map "\C-m" 'archive-extract)
+ (define-key map "g" 'revert-buffer)
+ (define-key map "h" 'describe-mode)
+ (define-key map "m" 'archive-mark)
+ (define-key map "n" 'archive-next-line)
+ (define-key map "\C-n" 'archive-next-line)
+ (define-key map [down] 'archive-next-line)
+ (define-key map "o" 'archive-extract-other-window)
+ (define-key map "p" 'archive-previous-line)
+ (define-key map "q" 'quit-window)
+ (define-key map "\C-p" 'archive-previous-line)
+ (define-key map [up] 'archive-previous-line)
+ (define-key map "r" 'archive-rename-entry)
+ (define-key map "u" 'archive-unflag)
+ (define-key map "\M-\C-?" 'archive-unmark-all-files)
+ (define-key map "v" 'archive-view)
+ (define-key map "x" 'archive-expunge)
+ (define-key map "\177" 'archive-unflag-backwards)
+ (define-key map "E" 'archive-extract-other-window)
+ (define-key map "M" 'archive-chmod-entry)
+ (define-key map "G" 'archive-chgrp-entry)
+ (define-key map "O" 'archive-chown-entry)
+
+ (if (fboundp 'command-remapping)
+ (progn
+ (define-key map [remap advertised-undo] 'archive-undo)
+ (define-key map [remap undo] 'archive-undo))
+ (substitute-key-definition 'advertised-undo 'archive-undo map global-map)
+ (substitute-key-definition 'undo 'archive-undo map global-map))
+
+ (define-key map
+ (if (featurep 'xemacs) 'button2 [mouse-2]) 'archive-extract)
+
+ (if (featurep 'xemacs)
+ () ; out of luck
+
+ (define-key map [menu-bar immediate]
+ (cons "Immediate" (make-sparse-keymap "Immediate")))
+ (define-key map [menu-bar immediate alternate]
+ '(menu-item "Alternate Display" archive-alternate-display
+ :enable (boundp (archive-name "alternate-display"))
+ :help "Toggle alternate file info display"))
+ (define-key map [menu-bar immediate view]
+ '(menu-item "View This File" archive-view
+ :help "Display file at cursor in View Mode"))
+ (define-key map [menu-bar immediate display]
+ '(menu-item "Display in Other Window" archive-display-other-window
+ :help "Display file at cursor in another window"))
+ (define-key map [menu-bar immediate find-file-other-window]
+ '(menu-item "Find in Other Window" archive-extract-other-window
+ :help "Edit file at cursor in another window"))
+ (define-key map [menu-bar immediate find-file]
+ '(menu-item "Find This File" archive-extract
+ :help "Extract file at cursor and edit it"))
+
+ (define-key map [menu-bar mark]
+ (cons "Mark" (make-sparse-keymap "Mark")))
+ (define-key map [menu-bar mark unmark-all]
+ '(menu-item "Unmark All" archive-unmark-all-files
+ :help "Unmark all marked files"))
+ (define-key map [menu-bar mark deletion]
+ '(menu-item "Flag" archive-flag-deleted
+ :help "Flag file at cursor for deletion"))
+ (define-key map [menu-bar mark unmark]
+ '(menu-item "Unflag" archive-unflag
+ :help "Unmark file at cursor"))
+ (define-key map [menu-bar mark mark]
+ '(menu-item "Mark" archive-mark
+ :help "Mark file at cursor"))
+
+ (define-key map [menu-bar operate]
+ (cons "Operate" (make-sparse-keymap "Operate")))
+ (define-key map [menu-bar operate chown]
+ '(menu-item "Change Owner..." archive-chown-entry
+ :enable (fboundp (archive-name "chown-entry"))
+ :help "Change owner of marked files"))
+ (define-key map [menu-bar operate chgrp]
+ '(menu-item "Change Group..." archive-chgrp-entry
+ :enable (fboundp (archive-name "chgrp-entry"))
+ :help "Change group ownership of marked files"))
+ (define-key map [menu-bar operate chmod]
+ '(menu-item "Change Mode..." archive-chmod-entry
+ :enable (fboundp (archive-name "chmod-entry"))
+ :help "Change mode (permissions) of marked files"))
+ (define-key map [menu-bar operate rename]
+ '(menu-item "Rename to..." archive-rename-entry
+ :enable (fboundp (archive-name "rename-entry"))
+ :help "Rename marked files"))
+ ;;(define-key map [menu-bar operate copy]
+ ;; '(menu-item "Copy to..." archive-copy))
+ (define-key map [menu-bar operate expunge]
+ '(menu-item "Expunge Marked Files" archive-expunge
+ :help "Delete all flagged files from archive"))
+ map))
+ "Local keymap for archive mode listings.")
+(defvar archive-file-name-indent nil "Column where file names start.")
+
+(defvar archive-remote nil "Non-nil if the archive is outside file system.")
+(make-variable-buffer-local 'archive-remote)
+(put 'archive-remote 'permanent-local t)
+
+(defvar archive-member-coding-system nil "Coding-system of archive member.")
+(make-variable-buffer-local 'archive-member-coding-system)
(defvar archive-alternate-display nil
- "*Non-nil when alternate information is shown.")
+ "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.")
+(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.")
+(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)
[EXT-FILE-NAME INT-FILE-NAME CASE-FIDDLED MODE ...]")
(make-variable-buffer-local 'archive-files)
-(defvar archive-lemacs
- (string-match "\\(Lucid\\|Xemacs\\)" emacs-version)
- "*Non-nil when running under under Lucid Emacs or Xemacs.")
;; -------------------------------------------------------------------------
;; 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 argument, length, should be supplied."
+(defun archive-l-e (str &optional len float)
+ "Convert little endian string/vector STR to integer.
+Alternatively, STR may be a buffer position in the current buffer
+in which case a second argument, length LEN, should be supplied.
+FLOAT, if non-nil, means generate and return a float instead of an integer
+\(use this for numbers that can overflow the Emacs integer)."
(if (stringp str)
(setq len (length str))
(setq str (buffer-substring str (+ str len))))
(i 0))
(while (< i len)
(setq i (1+ i)
- result (+ (ash result 8) (aref str (- len i)))))
+ result (+ (if float (* result 256.0) (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))
+ "Turn an integer like 0700 (i.e., 448) into a mode string like -rwx------."
+ ;; FIXME: merge with tar-grind-file-mode.
+ (string
+ (if (zerop (logand 8192 mode))
+ (if (zerop (logand 16384 mode)) ?- ?d)
+ ?c) ; completeness
+ (if (zerop (logand 256 mode)) ?- ?r)
+ (if (zerop (logand 128 mode)) ?- ?w)
+ (if (zerop (logand 64 mode))
+ (if (zerop (logand 1024 mode)) ?- ?S)
+ (if (zerop (logand 1024 mode)) ?x ?s))
+ (if (zerop (logand 32 mode)) ?- ?r)
+ (if (zerop (logand 16 mode)) ?- ?w)
+ (if (zerop (logand 8 mode))
+ (if (zerop (logand 2048 mode)) ?- ?S)
+ (if (zerop (logand 2048 mode)) ?x ?s))
+ (if (zerop (logand 4 mode)) ?- ?r)
+ (if (zerop (logand 2 mode)) ?- ?w)
+ (if (zerop (logand 1 mode)) ?- ?x)))
(defun archive-calc-mode (oldmode newmode &optional error)
"From the integer OLDMODE and the string NEWMODE calculate a new file mode.
(defun archive-dostime (time)
"Stringify dos packed TIME record."
(let ((hour (logand (ash time -11) 31))
- (minute (logand (ash time -5) 53))
+ (minute (logand (ash time -5) 63))
(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-unixdate (low high)
+ "Stringify Unix (LOW HIGH) date."
+ (let ((str (current-time-string (cons high low))))
+ (format "%s-%s-%s"
+ (substring str 8 10)
+ (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-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)
(defun archive-get-descr (&optional noerror)
"Return the descriptor vector for file at point.
-Does not signal an error if optional second argument NOERROR is non-nil."
+Does not signal an error if optional argument NOERROR is non-nil."
(let ((no (archive-get-lineno)))
(if (and (>= (point) archive-file-list-start)
(< no (length archive-files)))
(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)))
+ (typename (capitalize (symbol-name type))))
(kill-all-local-variables)
(make-local-variable 'archive-subtype)
(setq archive-subtype type)
(make-local-variable 'revert-buffer-function)
(setq revert-buffer-function 'archive-mode-revert)
(auto-save-mode 0)
- (make-local-variable 'write-contents-hooks)
- (add-hook 'write-contents-hooks 'archive-write-file)
- ;; Real file contents is binary
+ ;; Remote archives are not written by a hook.
+ (if archive-remote nil
+ (add-hook 'write-contents-functions 'archive-write-file nil t))
+
(make-local-variable 'require-final-newline)
(setq require-final-newline nil)
- (make-local-variable 'enable-local-variables)
- (setq enable-local-variables nil)
+ (make-local-variable 'local-enable-local-variables)
+ (setq local-enable-local-variables nil)
+
+ ;; Prevent loss of data when saving the file.
+ (make-local-variable 'file-precious-flag)
+ (setq file-precious-flag t)
(make-local-variable 'archive-read-only)
- (setq archive-read-only (not (file-writable-p (buffer-file-name))))
+ ;; Archives which are inside other archives and whose
+ ;; names are invalid for this OS, can't be written.
+ (setq archive-read-only
+ (or (not (file-writable-p (buffer-file-name)))
+ (and archive-subfile-mode
+ (string-match file-name-invalid-regexp
+ (aref archive-subfile-mode 0)))))
;; 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)))
+
+ ;; An archive can contain another archive whose name is invalid
+ ;; on local filesystem. Treat such archives as remote.
+ (or archive-remote
+ (setq archive-remote
+ (or (string-match archive-remote-regexp (buffer-file-name))
+ (string-match file-name-invalid-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)
+ (run-mode-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)
+ (archive-summarize nil)
(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 "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)
-
- (if archive-lemacs
- (progn
- ;; Not a nice "solution" but it'll have to do
- (define-key archive-mode-map "\C-xu" 'archive-undo)
- (define-key archive-mode-map "\C-_" 'archive-undo))
- (substitute-key-definition 'undo 'archive-undo
- archive-mode-map global-map))
-
- (define-key archive-mode-map
- (if archive-lemacs 'button2 [mouse-2]) 'archive-mouse-extract)
-
- (if archive-lemacs
- () ; out of luck
- ;; 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"))
- (items (list item1)))
+
+(let ((item1 '(archive-subfile-mode " Archive")))
(or (member item1 minor-mode-alist)
- (setq minor-mode-alist (append items minor-mode-alist))))
+ (setq minor-mode-alist (cons item1 minor-mode-alist))))
;; -------------------------------------------------------------------------
(defun archive-find-type ()
(widen)
(string-match "\\.[aA][rR][cC]$"
(or buffer-file-name (buffer-name))))
'arc)
- (t (error "Buffer format not recognized.")))))
+ ;; This pattern modelled on the BSD/GNU+Linux `file' command.
+ ;; Have seen capital "LHA's", and file has lower case "LHa's" too.
+ ;; Note this regexp is also in archive-exe-p.
+ ((looking-at "MZ\\(.\\|\n\\)\\{34\\}LH[aA]'s SFX ") 'lzh-exe)
+ (t (error "Buffer format not recognized")))))
;; -------------------------------------------------------------------------
-(defun archive-summarize ()
+(defun archive-summarize (&optional shut-up)
"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)."
+is visible (and the real data of the buffer is hidden).
+Optional argument SHUT-UP, if non-nil, means don't print messages
+when parsing the archive."
(widen)
- (let (buffer-read-only)
- (message "Parsing archive file...")
+ (set-buffer-multibyte nil)
+ (let ((inhibit-read-only t))
+ (or shut-up
+ (message "Parsing archive file..."))
(buffer-disable-undo (current-buffer))
(setq archive-files (funcall (archive-name "summarize")))
- (message "Parsing archive file...done.")
+ (or shut-up
+ (message "Parsing archive file...done."))
(setq archive-proper-file-start (point-marker))
(narrow-to-region (point-min) (point))
(set-buffer-modified-p nil)
"Recreate the contents listing of an archive."
(let ((modified (buffer-modified-p))
(no (archive-get-lineno))
- buffer-read-only)
+ (inhibit-read-only t))
(widen)
(delete-region (point-min) archive-proper-file-start)
- (archive-summarize)
- (set-buffer-modified-p modified)
+ (archive-summarize t)
+ (restore-buffer-modified-p modified)
(goto-char archive-file-list-start)
(archive-next-line no)))
(apply
(function concat)
(mapcar
- (function
- (lambda (fil)
- ;; Using `concat' here copies the text also, so we can add
- ;; properties without problems.
- (let ((text (concat (aref fil 0) "\n")))
- (if archive-lemacs
- () ; out of luck
- (put-text-property (aref fil 1) (aref fil 2)
- 'mouse-face 'highlight
- text))
- text)))
+ (lambda (fil)
+ ;; Using `concat' here copies the text also, so we can add
+ ;; properties without problems.
+ (let ((text (concat (aref fil 0) "\n")))
+ (if (featurep 'xemacs)
+ () ; out of luck
+ (add-text-properties
+ (aref fil 1) (aref fil 2)
+ '(mouse-face highlight
+ help-echo "mouse-2: extract this file into a buffer")
+ 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.
+To avoid very long lines archive mode does not show all information.
This function changes the set of information shown for each files."
(interactive)
(setq archive-alternate-display (not archive-alternate-display))
;; -------------------------------------------------------------------------
;; Section: Local archive copy handling
+(defun archive-unique-fname (fname dir)
+ "Make sure a file FNAME can be created uniquely in directory DIR.
+
+If FNAME can be uniquely created in DIR, it is returned unaltered.
+If FNAME is something our underlying filesystem can't grok, or if another
+file by that name already exists in DIR, a unique new name is generated
+using `make-temp-file', and the generated name is returned."
+ (let ((fullname (expand-file-name fname dir))
+ (alien (string-match file-name-invalid-regexp fname)))
+ (if (or alien (file-exists-p fullname))
+ (make-temp-file
+ (expand-file-name
+ (if (if (fboundp 'msdos-long-file-names)
+ (not (msdos-long-file-names)))
+ "am"
+ "arc-mode.")
+ dir))
+ fullname)))
+
(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))
+ (let ((coding-system-for-write 'no-conversion))
+ (if archive-remote
+ (let ((start (point-max))
+ ;; Sometimes ARCHIVE is invalid while its actual name, as
+ ;; recorded in its parent archive, is not. For example, an
+ ;; archive bar.zip inside another archive foo.zip gets a name
+ ;; "foo.zip:bar.zip", which is invalid on DOS/Windows.
+ ;; So use the actual name if available.
+ (archive-name
+ (or (and archive-subfile-mode (aref archive-subfile-mode 0))
+ archive)))
+ (setq archive-local-name
+ (archive-unique-fname archive-name archive-tmpdir))
+ ;; Maked sure all the leading directories in
+ ;; archive-local-name exist under archive-tmpdir, so that
+ ;; the directory structure recorded in the archive is
+ ;; reconstructed in the temporary directory.
+ (make-directory (file-name-directory archive-local-name) 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)
+ (coding-system-for-read 'no-conversion)
+ (lno (archive-get-lineno))
+ (inhibit-read-only t))
(if unchanged nil
+ (setq archive-files nil)
(erase-buffer)
(insert-file-contents name)
- (archive-mode t))
+ (archive-mode t)
+ (goto-char archive-file-list-start)
+ (archive-next-line lno))
(archive-delete-local name)
(if (not unchanged)
- (message "Archive file must be saved for changes to take effect"))
+ (message
+ "Buffer `%s' must be saved for changes to take effect"
+ (buffer-name (current-buffer))))
(set-buffer-modified-p (or modified (not unchanged))))))
(defun archive-delete-local (name)
;; -------------------------------------------------------------------------
;; Section: Member extraction
-(defun archive-mouse-extract (event)
- "Extract a file whose name you click on."
- (interactive "e")
- (mouse-set-point event)
- (switch-to-buffer
- (save-excursion
- (archive-extract)
- (current-buffer))))
+(defun archive-file-name-handler (op &rest args)
+ (or (eq op 'file-exists-p)
+ (let ((file-name-handler-alist nil))
+ (apply op args))))
+
+(defun archive-set-buffer-as-visiting-file (filename)
+ "Set the current buffer as if it were visiting FILENAME."
+ (save-excursion
+ (goto-char (point-min))
+ (let ((buffer-undo-list t)
+ (coding
+ (or coding-system-for-read
+ (and set-auto-coding-function
+ (save-excursion
+ (funcall set-auto-coding-function
+ filename (- (point-max) (point-min)))))
+ ;; dos-w32.el defines the function
+ ;; find-buffer-file-type-coding-system for DOS/Windows
+ ;; systems which preserves the coding-system of existing files.
+ ;; (That function is called via file-coding-system-alist.)
+ ;; Here, we want it to act as if the extracted file existed.
+ ;; The following let-binding of file-name-handler-alist forces
+ ;; find-file-not-found-set-buffer-file-coding-system to ignore
+ ;; the file's name (see dos-w32.el).
+ (let ((file-name-handler-alist
+ '(("" . archive-file-name-handler))))
+ (car (find-operation-coding-system
+ 'insert-file-contents
+ (cons filename (current-buffer)) t))))))
+ (if (and (not coding-system-for-read)
+ (not enable-multibyte-characters))
+ (setq coding
+ (coding-system-change-text-conversion coding 'raw-text)))
+ (if (and coding
+ (not (eq coding 'no-conversion)))
+ (decode-coding-region (point-min) (point-max) coding)
+ (setq last-coding-system-used coding))
+ (set-buffer-modified-p nil)
+ (kill-local-variable 'buffer-file-coding-system)
+ (after-insert-file-set-coding (- (point-max) (point-min))))))
+
+(define-obsolete-function-alias 'archive-mouse-extract 'archive-extract "22.1")
-(defun archive-extract (&optional other-window-p)
+(defun archive-extract (&optional other-window-p event)
"In archive mode, extract this entry of the archive into its own buffer."
- (interactive)
+ (interactive (list nil last-input-event))
+ (if event (posn-set-point (event-end event)))
(let* ((view-p (eq other-window-p 'view))
(descr (archive-get-descr))
(ename (aref descr 0))
(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))
+ ;; Members with file names which aren't valid for the
+ ;; underlying filesystem, are treated as read-only.
+ (read-only-p (or archive-read-only
+ view-p
+ (string-match file-name-invalid-regexp ename)))
+ (arcfilename (expand-file-name (concat arcname ":" iname)))
(buffer (get-buffer bufname))
(just-created nil))
- (if buffer
+ (if (and buffer
+ (string= (buffer-file-name buffer) arcfilename))
nil
(setq archive (archive-maybe-copy archive))
+ (setq bufname (generate-new-buffer-name bufname))
(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)))
+ (with-current-buffer buffer
+ (setq buffer-file-name arcfilename)
(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)
+ (add-hook 'write-file-functions 'archive-write-file-member nil t)
(setq archive-subfile-mode descr)
-; (if (boundp 'default-buffer-file-type)
-; (setq buffer-file-type t))
(if (and
(null
- (if (fboundp extractor)
- (funcall extractor archive ename)
- (archive-*-extract archive ename (symbol-value extractor))))
+ (let (;; We may have to encode file name arguement for
+ ;; external programs.
+ (coding-system-for-write
+ (and enable-multibyte-characters
+ file-name-coding-system))
+ ;; We read an archive member by no-conversion at
+ ;; first, then decode appropriately by calling
+ ;; archive-set-buffer-as-visiting-file later.
+ (coding-system-for-read 'no-conversion))
+ (condition-case err
+ (if (fboundp extractor)
+ (funcall extractor archive ename)
+ (archive-*-extract archive ename
+ (symbol-value extractor)))
+ (error
+ (ding (message "%s" (error-message-string err)))
+ nil))))
just-created)
(progn
(set-buffer-modified-p nil)
(kill-buffer buffer))
+ (archive-set-buffer-as-visiting-file ename)
(goto-char (point-min))
(rename-buffer bufname)
(setq buffer-read-only read-only-p)
(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)))
+ (when (derived-mode-p 'archive-mode)
+ (setq archive-remote t)
+ (if read-only-p (setq archive-read-only t))
+ ;; We will write out the archive ourselves if it is
+ ;; part of another archive.
+ (remove-hook 'write-contents-functions 'archive-write-file t))
+ (run-hooks 'archive-extract-hooks)
+ (if archive-read-only
+ (message "Note: altering this archive is not implemented."))))
+ (archive-maybe-update t))
(or (not (buffer-name buffer))
- (progn
- (if view-p
- (view-buffer buffer (and just-created '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)))))))
+ (cond
+ (view-p (view-buffer buffer (and just-created 'kill-buffer)))
+ ((eq other-window-p 'display) (display-buffer buffer))
+ (other-window-p (switch-to-buffer-other-window buffer))
+ (t (switch-to-buffer buffer))))))
(defun archive-*-extract (archive name command)
(let* ((default-directory (file-name-as-directory archive-tmpdir))
success))
(defun archive-extract-by-stdout (archive name command)
- ;; We need the coding system of the output of the extract program,
- ;; including the EOL encoding, be decoded dynamically, since what
- ;; the extract program outputs is the contents of some file.
- (let ((coding-system-for-read (or coding-system-for-read 'undecided))
- (inherit-process-coding-system t))
- (apply 'call-process
- (car command)
- nil
- t
- nil
- (append (cdr command) (list archive name)))))
+ (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."
(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)))
+ (while (and bufs
+ (not (with-current-buffer (car bufs)
+ (derived-mode-p 'archive-mode))))
+ (setq bufs (cdr bufs)))
(if bufs
(car bufs)
(error "There are no archive buffers")))
(if buffer-file-name
(file-name-nondirectory buffer-file-name)
""))))
- (save-excursion
- (set-buffer arcbuf)
+ (with-current-buffer arcbuf
(or (eq major-mode 'archive-mode)
(error "Buffer is not an archive buffer"))
(if archive-read-only
(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")))
+ (let ((func (with-current-buffer arcbuf
+ (archive-name "add-new-member")))
(membuf (current-buffer)))
(if (fboundp func)
- (save-excursion
- (set-buffer arcbuf)
+ (with-current-buffer arcbuf
(funcall func buffer-file-name membuf name))
(error "Adding a new member is not supported for this archive type"))))
;; -------------------------------------------------------------------------
(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))))
+ (let ((writer (with-current-buffer archive-superior-buffer
+ (archive-name "write-file-member")))
+ (archive (with-current-buffer archive-superior-buffer
+ (archive-maybe-copy (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")
+ (symbol-value writer)))
+ (set-buffer-modified-p nil)
+ (message "Updating archive...done"))
(set-buffer archive-superior-buffer)
- (revert-buffer)
- t)))
+ (if (not archive-remote) (revert-buffer) (archive-maybe-update nil))))
+ ;; Restore the value of last-coding-system-used, so that basic-save-buffer
+ ;; won't reset the coding-system of this archive member.
+ (if (local-variable-p 'archive-member-coding-system)
+ (setq last-coding-system-used archive-member-coding-system))
+ t)
(defun archive-*-write-file-member (archive descr command)
(let* ((ename (aref descr 0))
(unwind-protect
(progn
(make-directory (file-name-directory tmpfile) t)
- (write-region (point-min) (point-max) tmpfile nil 'nomessage)
+ ;; If the member is itself an archive, write it without
+ ;; the dired-like listing we created.
+ (if (eq major-mode 'archive-mode)
+ (archive-write-file tmpfile)
+ (write-region (point-min) (point-max) tmpfile nil 'nomessage))
+ ;; basic-save-buffer needs last-coding-system-used to have
+ ;; the value used to write the file, so save it before any
+ ;; further processing clobbers it (we restore it in
+ ;; archive-write-file-member, above).
+ (setq archive-member-coding-system last-coding-system-used)
(if (aref descr 3)
;; Set the file modes, but make sure we can read it.
(set-file-modes tmpfile (logior ?\400 (aref descr 3))))
+ (if enable-multibyte-characters
+ (setq ename
+ (encode-coding-string ename file-name-coding-system)))
(let ((exitcode (apply 'call-process
(car command)
nil
(error "Updating was unsuccessful (%S)" exitcode))))
(archive-delete-local tmpfile))))
-(defun archive-write-file ()
+(defun archive-write-file (&optional file)
(save-excursion
- (write-region archive-proper-file-start (point-max) buffer-file-name nil t)
- (set-buffer-modified-p nil)
+ (let ((coding-system-for-write 'no-conversion))
+ (write-region archive-proper-file-start (point-max)
+ (or file buffer-file-name) nil t)
+ (set-buffer-modified-p nil))
t))
;; -------------------------------------------------------------------------
;; Section: Marking and unmarking.
(beginning-of-line)
(let ((sign (if (>= p 0) +1 -1))
(modified (buffer-modified-p))
- buffer-read-only)
+ (inhibit-read-only t))
(while (not (zerop p))
(if (archive-get-descr t)
(progn
(insert type)))
(forward-line sign)
(setq p (- p sign)))
- (set-buffer-modified-p modified))
+ (restore-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 ? ))
+ (archive-flag-deleted p ?\s))
(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) ? ))
+ (archive-flag-deleted (- p) ?\s))
(defun archive-unmark-all-files ()
"Remove all marks."
(interactive)
(let ((modified (buffer-modified-p))
- buffer-read-only)
+ (inhibit-read-only t))
(save-excursion
(goto-char archive-file-list-start)
(while (< (point) archive-file-list-end)
- (or (= (following-char) ? )
- (progn (delete-char 1) (insert ? )))
+ (or (= (following-char) ?\s)
+ (progn (delete-char 1) (insert ?\s)))
(forward-line 1)))
- (set-buffer-modified-p modified)))
+ (restore-buffer-modified-p modified)))
(defun archive-mark (p)
"In archive mode, mark this member for group operations.
(defun archive-chmod-entry (new-mode)
"Change the protection bits associated with all marked or this member.
The new protection bits can either be specified as an octal number or
-as a relative change like \"g+rw\" as for chmod(2)"
+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")))
(append (cdr command) (cons archive files))))
(defun archive-rename-entry (newname)
- "Change the name associated with this entry in the tar file."
+ "Change the name associated with this entry in the archive file."
(interactive "sNew name: ")
(if archive-read-only (error "Archive is read-only"))
(if (string= newname "")
(descr (archive-get-descr)))
(if (fboundp func)
(progn
- (funcall func (buffer-file-name) newname descr)
+ (funcall func
+ (if enable-multibyte-characters
+ (encode-coding-string newname file-name-coding-system)
+ 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)
+(defun archive-mode-revert (&optional no-auto-save no-confirm)
(let ((no (archive-get-lineno)))
(setq archive-files nil)
- (let ((revert-buffer-function nil))
+ (let ((revert-buffer-function nil)
+ (coding-system-for-read 'no-conversion))
+ (set-buffer-multibyte nil)
(revert-buffer t t))
(archive-mode)
(goto-char archive-file-list-start)
"Undo in an archive buffer.
This doesn't recover lost files, it just undoes changes in the buffer itself."
(interactive)
- (let (buffer-read-only)
+ (let ((inhibit-read-only t))
(undo)))
;; -------------------------------------------------------------------------
;; Section: Arc Archives
(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))
+ ;; Convert to float to avoid overflow for very large files.
+ (csize (archive-l-e (+ p 15) 4 'float))
(moddate (archive-l-e (+ p 19) 2))
(modtime (archive-l-e (+ p 21) 2))
- (ucsize (archive-l-e (+ p 25) 4))
+ (ucsize (archive-l-e (+ p 25) 4 'float))
(fiddle (string= efnname (upcase efnname)))
(ifnname (if fiddle (downcase efnname) efnname))
- (text (format " %8d %-11s %-8s %s"
+ (text (format " %8.0f %-11s %-8s %s"
ucsize
(archive-dosdate moddate)
(archive-dostime modtime)
visual)
files (cons (vector efnname ifnname fiddle nil (1- p))
files)
- p (+ p 29 csize))))
+ ;; p needs to stay an integer, since we use it in char-after
+ ;; above. Passing through `round' limits the compressed size
+ ;; to most-positive-fixnum, but if the compressed size exceeds
+ ;; that, we cannot visit the archive anyway.
+ p (+ p 29 (round csize)))))
(goto-char (point-min))
(let ((dash (concat "- -------- ----------- -------- "
(make-string maxlen ?-)
dash)
(archive-summarize-files (nreverse visual))
(insert dash
- (format " %8d %d file%s"
+ (format " %8.0f %d file%s"
totalsize
(length files)
(if (= 1 (length files)) "" "s"))
"\n"))
(apply 'vector (nreverse files))))
-(defun archive-arc-rename-entry (archive newname descr)
+(defun archive-arc-rename-entry (newname descr)
(if (string-match "[:\\\\/]" newname)
- (error "File names in arc files may not contain a path"))
+ (error "File names in arc files must not contain a directory component"))
(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)
+ (inhibit-read-only t))
(save-restriction
(save-excursion
(widen)
+ (set-buffer-multibyte nil)
(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)
+(defun archive-lzh-summarize (&optional start)
+ (let ((p (or start 1)) ;; 1 for .lzh, something further on for .exe
(totalsize 0)
(maxlen 8)
files
visual)
- (while (progn (goto-char p)
+ (while (progn (goto-char p) ;beginning of a base header.
(looking-at "\\(.\\|\n\\)\\(.\\|\n\\)-l[hz][0-9ds]-"))
- (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))
- (hdrlvl (char-after (+ p 20)))
- (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 modestr uid gid text path prname
- )
- (if (= hdrlvl 0)
- (setq mode (if (= creator ?U) (archive-l-e (+ p2 8) 2) ?\666)
- uid (if (= creator ?U) (archive-l-e (+ p2 10) 2))
- gid (if (= creator ?U) (archive-l-e (+ p2 12) 2)))
- (if (= creator ?U)
- (let* ((p3 (+ p2 3))
- (hsize (archive-l-e p3 2))
- (etype (char-after (+ p3 2))))
- (while (not (= hsize 0))
+ (let* ((hsize (char-after p)) ;size of the base header (level 0 and 1)
+ ;; Convert to float to avoid overflow for very large files.
+ (csize (archive-l-e (+ p 7) 4 'float)) ;size of a compressed file to follow (level 0 and 2),
+ ;size of extended headers + the compressed file to follow (level 1).
+ (ucsize (archive-l-e (+ p 11) 4 'float)) ;size of an uncompressed file.
+ (time1 (archive-l-e (+ p 15) 2)) ;date/time (MSDOS format in level 0, 1 headers
+ (time2 (archive-l-e (+ p 17) 2)) ;and UNIX format in level 2 header.)
+ (hdrlvl (char-after (+ p 20))) ;header level
+ thsize ;total header size (base + extensions)
+ fnlen efnname osid fiddle ifnname width p2
+ neh ;beginning of next extension header (level 1 and 2)
+ mode modestr uid gid text dir prname
+ gname uname modtime moddate)
+ (if (= hdrlvl 3) (error "can't handle lzh level 3 header type"))
+ (when (or (= hdrlvl 0) (= hdrlvl 1))
+ (setq fnlen (char-after (+ p 21))) ;filename length
+ (setq efnname (let ((str (buffer-substring (+ p 22) (+ p 22 fnlen)))) ;filename from offset 22
+ (if file-name-coding-system
+ (decode-coding-string str file-name-coding-system)
+ (string-as-multibyte str))))
+ (setq p2 (+ p 22 fnlen))) ;
+ (if (= hdrlvl 1)
+ (setq neh (+ p2 3)) ;specific to level 1 header
+ (if (= hdrlvl 2)
+ (setq neh (+ p 24)))) ;specific to level 2 header
+ (if neh ;if level 1 or 2 we expect extension headers to follow
+ (let* ((ehsize (archive-l-e neh 2)) ;size of the extension header
+ (etype (char-after (+ neh 2)))) ;extension type
+ (while (not (= ehsize 0))
(cond
- ((= etype 2) (let ((i (+ p3 3)))
- (while (< i (+ p3 hsize))
- (setq path (concat path
+ ((= etype 1) ;file name
+ (let ((i (+ neh 3)))
+ (while (< i (+ neh ehsize))
+ (setq efnname (concat efnname (char-to-string (char-after i))))
+ (setq i (1+ i)))))
+ ((= etype 2) ;directory name
+ (let ((i (+ neh 3)))
+ (while (< i (+ neh ehsize))
+ (setq dir (concat dir
(if (= (char-after i)
255)
"/"
(char-to-string
(char-after i)))))
(setq i (1+ i)))))
- ((= etype 80) (setq mode (archive-l-e (+ p3 3) 2)))
- ((= etype 81) (progn (setq uid (archive-l-e (+ p3 3) 2))
- (setq gid (archive-l-e (+ p3 5) 2))))
+ ((= etype 80) ;Unix file permission
+ (setq mode (archive-l-e (+ neh 3) 2)))
+ ((= etype 81) ;UNIX file group/user ID
+ (progn (setq uid (archive-l-e (+ neh 3) 2))
+ (setq gid (archive-l-e (+ neh 5) 2))))
+ ((= etype 82) ;UNIX file group name
+ (let ((i (+ neh 3)))
+ (while (< i (+ neh ehsize))
+ (setq gname (concat gname (char-to-string (char-after i))))
+ (setq i (1+ i)))))
+ ((= etype 83) ;UNIX file user name
+ (let ((i (+ neh 3)))
+ (while (< i (+ neh ehsize))
+ (setq uname (concat uname (char-to-string (char-after i))))
+ (setq i (1+ i)))))
)
- (setq p3 (+ p3 hsize))
- (setq hsize (archive-l-e p3 2))
- (setq etype (char-after (+ p3 2)))))))
- (setq prname (if path (concat path ifnname) ifnname))
+ (setq neh (+ neh ehsize))
+ (setq ehsize (archive-l-e neh 2))
+ (setq etype (char-after (+ neh 2))))
+ ;;get total header size for level 1 and 2 headers
+ (setq thsize (- neh p))))
+ (if (= hdrlvl 0) ;total header size
+ (setq thsize hsize))
+ ;; OS ID field not present in level 0 header, use code 0 "generic"
+ ;; in that case as per lha program header.c get_header()
+ (setq osid (cond ((= hdrlvl 0) 0)
+ ((= hdrlvl 1) (char-after (+ p 22 fnlen 2)))
+ ((= hdrlvl 2) (char-after (+ p 23)))))
+ ;; Filename fiddling must follow the lha program, otherwise the name
+ ;; passed to "lha pq" etc won't match (which for an extract silently
+ ;; results in no output). As of version 1.14i it goes from the OS ID,
+ ;; - For 'M' MSDOS: msdos_to_unix_filename() downcases always, and
+ ;; converts "\" to "/".
+ ;; - For 0 generic: generic_to_unix_filename() downcases if there's
+ ;; no lower case already present, and converts "\" to "/".
+ ;; - For 'm' MacOS: macos_to_unix_filename() changes "/" to ":" and
+ ;; ":" to "/"
+ (setq fiddle (cond ((= ?M osid) t)
+ ((= 0 osid) (string= efnname (upcase efnname)))))
+ (setq ifnname (if fiddle (downcase efnname) efnname))
+ (setq prname (if dir (concat dir ifnname) ifnname))
+ (setq width (if prname (string-width prname) 0))
(setq modestr (if mode (archive-int-to-mode mode) "??????????"))
+ (setq moddate (if (= hdrlvl 2)
+ (archive-unixdate time1 time2) ;level 2 header in UNIX format
+ (archive-dosdate time2))) ;level 0 and 1 header in DOS format
+ (setq modtime (if (= hdrlvl 2)
+ (archive-unixtime time1 time2)
+ (archive-dostime time1)))
(setq text (if archive-alternate-display
- (format " %8d %5S %5S %s"
+ (format " %8.0f %5S %5S %s"
ucsize
(or uid "?")
(or gid "?")
ifnname)
- (format " %10s %8d %-11s %-8s %s"
+ (format " %10s %8.0f %-11s %-8s %s"
modestr
ucsize
- (archive-dosdate moddate)
- (archive-dostime modtime)
- ifnname)))
- (setq maxlen (max maxlen fnlen)
+ moddate
+ modtime
+ prname)))
+ (setq maxlen (max maxlen width)
totalsize (+ totalsize ucsize)
visual (cons (vector text
- (- (length text) (length ifnname))
+ (- (length text) (length prname))
(length text))
visual)
files (cons (vector prname ifnname fiddle mode (1- p))
- files)
- p (+ p hsize 2 csize))))
+ files))
+ (cond ((= hdrlvl 1)
+ ;; p needs to stay an integer, since we use it in goto-char
+ ;; above. Passing through `round' limits the compressed size
+ ;; to most-positive-fixnum, but if the compressed size exceeds
+ ;; that, we cannot visit the archive anyway.
+ (setq p (+ p hsize 2 (round csize))))
+ ((or (= hdrlvl 2) (= hdrlvl 0))
+ (setq p (+ p thsize 2 (round csize)))))
+ ))
(goto-char (point-min))
+ (set-buffer-multibyte default-enable-multibyte-characters)
(let ((dash (concat (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")))
+ " %8.0f %d file%s"
+ " %8.0f %d file%s")))
(insert header dash)
(archive-summarize-files (nreverse visual))
(insert dash
p (1+ p)))
(logand sum 255)))
-(defun archive-lzh-rename-entry (archive newname descr)
+(defun archive-lzh-rename-entry (newname descr)
(save-restriction
(save-excursion
(widen)
+ (set-buffer-multibyte nil)
(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)
+ (inhibit-read-only t))
(if (> newhsize 255)
(error "The file name is too long"))
(goto-char (+ p 21))
(insert newhsize (archive-lzh-resum p newhsize))))))
(defun archive-lzh-ogm (newval files errtxt ofs)
- (save-restriction
- (save-excursion
+ (save-excursion
+ (save-restriction
(widen)
- (while files
- (let* ((fil (car files))
- (p (+ archive-proper-file-start (aref fil 4)))
+ (set-buffer-multibyte nil)
+ (dolist (fil files)
+ (let* ((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)
+ (inhibit-read-only t))
(if (= creator ?U)
(progn
(or (numberp newval)
(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))))))
+ (aref fil 1) errtxt)))))))
(defun archive-lzh-chown-entry (newuid files)
(archive-lzh-ogm newuid files "an uid" 10))
(defun archive-lzh-chmod-entry (newmode files)
(archive-lzh-ogm
;; This should work even though newmode will be dynamically accessed.
- (function (lambda (old) (archive-calc-mode old newmode t)))
+ (lambda (old) (archive-calc-mode old newmode t))
files "a unix-style mode" 8))
+
+;; -------------------------------------------------------------------------
+;; Section: Lzh Self-Extracting .exe Archives
+;;
+;; No support for modifying these files. It looks like the lha for unix
+;; program (as of version 1.14i) can't create or retain the DOS exe part.
+;; If you do an "lha a" on a .exe for instance it renames and writes to a
+;; plain .lzh.
+
+(defun archive-lzh-exe-summarize ()
+ "Summarize the contents of an LZH self-extracting exe, for `archive-mode'."
+
+ ;; Skip the initial executable code part and apply archive-lzh-summarize
+ ;; to the archive part proper. The "-lh5-" etc regexp here for the start
+ ;; is the same as in archive-find-type.
+ ;;
+ ;; The lha program (version 1.14i) does this in skip_msdos_sfx1_code() by
+ ;; a similar scan. It looks for "..-l..-" plus for level 0 or 1 a test of
+ ;; the header checksum, or level 2 a test of the "attribute" and size.
+ ;;
+ (re-search-forward "..-l[hz][0-9ds]-" nil)
+ (archive-lzh-summarize (match-beginning 0)))
+
+;; `archive-lzh-extract' runs "lha pq", and that works for .exe as well as
+;; .lzh files
+(defalias 'archive-lzh-exe-extract 'archive-lzh-extract
+ "Extract a member from an LZH self-extracting exe, for `archive-mode'.")
+
;; -------------------------------------------------------------------------
;; 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)))
+ (let ((p (+ (point-min) (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))
+ ;; (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))
+ ;; Convert to float to avoid overflow for very large files.
+ (ucsize (archive-l-e (+ p 24) 4 'float))
(fnlen (archive-l-e (+ p 28) 2))
(exlen (archive-l-e (+ p 30) 2))
(fclen (archive-l-e (+ p 32) 2))
(lheader (archive-l-e (+ p 42) 4))
- (efnname (buffer-substring (+ p 46) (+ p 46 fnlen)))
+ (efnname (let ((str (buffer-substring (+ p 46) (+ p 46 fnlen))))
+ (if file-name-coding-system
+ (decode-coding-string str file-name-coding-system)
+ (string-as-multibyte str))))
(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.
+ ((memq creator '(0 5 6 7 10 11 15)) ; Dos etc.
(logior ?\444
(if isdir (logior 16384 ?\111) 0)
(if (zerop
(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))))))
+ (not (not (memq creator '(0 2 4 5 9))))
+ (string= (upcase efnname) efnname)))
(ifnname (if fiddle (downcase efnname) efnname))
- (text (format " %10s %8d %-11s %-8s %s"
+ (width (string-width ifnname))
+ (text (format " %10s %8.0f %-11s %-8s %s"
modestr
ucsize
(archive-dosdate moddate)
(archive-dostime modtime)
ifnname)))
- (setq maxlen (max maxlen fnlen)
+ (setq maxlen (max maxlen width)
totalsize (+ totalsize ucsize)
visual (cons (vector text
(- (length text) (length ifnname))
dash)
(archive-summarize-files (nreverse visual))
(insert dash
- (format " %8d %d file%s"
+ (format " %8.0f %d file%s"
totalsize
(length files)
(if (= 1 (length files)) "" "s"))
(apply 'vector (nreverse files))))
(defun archive-zip-extract (archive name)
- (if archive-zip-use-pkzip
+ (if (equal (car archive-zip-extract) "pkzip")
(archive-*-extract archive name archive-zip-extract)
(archive-extract-by-stdout archive name archive-zip-extract)))
(save-restriction
(save-excursion
(widen)
- (while files
- (let* ((fil (car files))
- (p (+ archive-proper-file-start (car (aref fil 4))))
+ (set-buffer-multibyte nil)
+ (dolist (fil files)
+ (let* ((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)
+ (inhibit-read-only t))
(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.
+ ((memq creator '(0 5 6 7 10 11 15)) ; 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
(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))
+ ;; Convert to float to avoid overflow for very large files.
+ (ucsize (archive-l-e (+ p 20) 4 'float))
(namefld (buffer-substring (+ p 38) (+ p 38 13)))
(dirtype (char-after (+ p 4)))
(lfnlen (if (= dirtype 2) (char-after (+ p 56)) 0))
(ldirlen (if (= dirtype 2) (char-after (+ p 57)) 0))
(fnlen (or (string-match "\0" namefld) 13))
- (efnname (concat
- (if (> ldirlen 0)
- (concat (buffer-substring
- (+ p 58 lfnlen) (+ p 58 lfnlen ldirlen -1))
- "/")
- "")
- (if (> lfnlen 0)
- (buffer-substring (+ p 58) (+ p 58 lfnlen -1))
- (substring namefld 0 fnlen))))
+ (efnname (let ((str
+ (concat
+ (if (> ldirlen 0)
+ (concat (buffer-substring
+ (+ p 58 lfnlen)
+ (+ p 58 lfnlen ldirlen -1))
+ "/")
+ "")
+ (if (> lfnlen 0)
+ (buffer-substring (+ p 58)
+ (+ p 58 lfnlen -1))
+ (substring namefld 0 fnlen)))))
+ (if file-name-coding-system
+ (decode-coding-string str file-name-coding-system)
+ (string-as-multibyte str))))
(fiddle (and (= lfnlen 0) (string= efnname (upcase efnname))))
(ifnname (if fiddle (downcase efnname) efnname))
- (text (format " %8d %-11s %-8s %s"
+ (width (string-width ifnname))
+ (text (format " %8.0f %-11s %-8s %s"
ucsize
(archive-dosdate moddate)
(archive-dostime modtime)
ifnname)))
- (setq maxlen (max maxlen (length ifnname))
+ (setq maxlen (max maxlen width)
totalsize (+ totalsize ucsize)
visual (cons (vector text
(- (length text) (length ifnname))
dash)
(archive-summarize-files (nreverse visual))
(insert dash
- (format " %8d %d file%s"
+ (format " %8.0f %d file%s"
totalsize
(length files)
(if (= 1 (length files)) "" "s"))
(defun archive-zoo-extract (archive name)
(archive-extract-by-stdout archive name archive-zoo-extract))
;; -------------------------------------------------------------------------
+;; This line was a mistake; it is kept now for compatibility.
+;; rms 15 Oct 98
(provide 'archive-mode)
-;; arc-mode.el ends here.
+(provide 'arc-mode)
+
+;; arch-tag: e5966a01-35ec-4f27-8095-a043a79b457b
+;;; arc-mode.el ends here