;;; jka-cmpr-hook.el --- preloaded code to enable jka-compr.el
;; Copyright (C) 1993, 1994, 1995, 1997, 1999, 2000, 2002, 2003,
-;; 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+;; 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
;; Author: jka@ece.cmu.edu (Jay K. Adams)
;; Maintainer: FSF
;; Keywords: data
+;; Package: emacs
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; 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 3, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, 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
;; 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, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
\f
(defun jka-compr-build-file-regexp ()
+ (purecopy
(mapconcat
'jka-compr-info-regexp
jka-compr-compression-info-list
- "\\|"))
+ "\\|")))
;; Functions for accessing the return value of jka-compr-get-compression-info
(defun jka-compr-info-regexp (info) (aref info 0))
;; I have this defined so that .Z files are assumed to be in unix
;; compress format; and .gz files, in gzip format, and .bz2 files in bzip fmt.
+
+;; FIXME? It seems ugly that one has to add "\\(~\\|\\.~[0-9]+~\\)?" to
+;; all the regexps here, in order to match backup files etc.
+;; It's trivial to modify jka-compr-get-compression-info to match
+;; regexps against file-name-sans-versions, but this regexp is also
+;; used to build a file-name-handler-alist entry.
+;; find-file-name-handler does not use file-name-sans-versions.
+;; Perhaps it should,
+;; http://lists.gnu.org/archive/html/emacs-devel/2008-02/msg00812.html,
+;; but it's used all over the place and there are probably other ramifications.
+;; One could modify jka-compr-build-file-regexp to add the backup regexp,
+;; but jka-compr-compression-info-list is a defcustom to which
+;; anything could be added, so it's easiest to leave things as they are.
(defcustom jka-compr-compression-info-list
;;[regexp
;; compr-message compr-prog compr-args
;; uncomp-message uncomp-prog uncomp-args
;; can-append strip-extension-flag file-magic-bytes]
+ (mapcar 'purecopy
'(["\\.Z\\(~\\|\\.~[0-9]+~\\)?\\'"
"compressing" "compress" ("-c")
;; gzip is more common than uncompress. It can only read, not write.
"bzip2ing" "bzip2" nil
"bunzip2ing" "bzip2" ("-d")
nil t "BZh"]
- ["\\.tbz\\'"
+ ["\\.tbz2?\\'"
"bzip2ing" "bzip2" nil
"bunzip2ing" "bzip2" ("-d")
nil nil "BZh"]
- ["\\.\\(?:tgz\\|svgz\\)\\'"
+ ["\\.\\(?:tgz\\|svgz\\|sifz\\)\\(~\\|\\.~[0-9]+~\\)?\\'"
"compressing" "gzip" ("-c" "-q")
"uncompressing" "gzip" ("-c" "-q" "-d")
t nil "\037\213"]
"compressing" "gzip" ("-c" "-q")
"uncompressing" "gzip" ("-c" "-q" "-d")
t t "\037\213"]
+ ["\\.xz\\(~\\|\\.~[0-9]+~\\)?\\'"
+ "XZ compressing" "xz" ("-c" "-q")
+ "XZ uncompressing" "xz" ("-c" "-q" "-d")
+ t t "\3757zXZ\0"]
;; dzip is gzip with random access. Its compression program can't
;; read/write stdin/out, so .dz files can only be viewed without
;; saving, having their contents decompressed with gzip.
["\\.dz\\'"
nil nil nil
"uncompressing" "gzip" ("-c" "-q" "-d")
- nil t "\037\213"])
+ nil t "\037\213"]))
"List of vectors that describe available compression techniques.
Each element, which describes a compression technique, is a vector of
:group 'jka-compr)
(defcustom jka-compr-mode-alist-additions
- (list (cons "\\.tgz\\'" 'tar-mode) (cons "\\.tbz\\'" 'tar-mode))
+ (list (cons (purecopy "\\.tgz\\'") 'tar-mode) (cons (purecopy "\\.tbz2?\\'") 'tar-mode))
"List of pairs added to `auto-mode-alist' when installing jka-compr.
Uninstalling jka-compr removes all pairs from `auto-mode-alist' that
installing added.
:set 'jka-compr-set
:group 'jka-compr)
-(defcustom jka-compr-load-suffixes '(".gz")
+(defcustom jka-compr-load-suffixes (list (purecopy ".gz"))
"List of compression related suffixes to try when loading files.
Enabling Auto Compression mode appends this list to `load-file-rep-suffixes',
which see. Disabling Auto Compression mode removes all suffixes
(defmacro with-auto-compression-mode (&rest body)
"Evalute BODY with automatic file compression and uncompression enabled."
+ (declare (indent 0))
(let ((already-installed (make-symbol "already-installed")))
`(let ((,already-installed (jka-compr-installed-p)))
(unwind-protect
,@body)
(unless ,already-installed
(jka-compr-uninstall))))))
-(put 'with-auto-compression-mode 'lisp-indent-function 0)
-
;; This is what we need to know about jka-compr-handler
;; in order to decide when to call it.
HCoop / bpt / emacs.git / blobdiff