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bug#2353: 23.0.90; jka-compr: LZMA support
From: |
trentbuck |
Subject: |
bug#2353: 23.0.90; jka-compr: LZMA support |
Date: |
Mon, 16 Feb 2009 22:36:49 -0800 (PST) |
>From lzma(1):
LZMA (Lempel-Ziv-Markov chain-Algorithm) is an improved version of
famous LZ77 compression algorithm. It was improved in way of
maximum increasing of compression ratio, keeping high
decompression speed and low memory requirements for decompressing.
This seems to work such that foo.tar.lzma can be opened happily by
Emacs. I suggest adding it to the default list in jka-compr.el.
(progn
(add-to-list 'jka-compr-compression-info-list
["\\.lzma\\(~\\|\\.~[0-9]+~\\)?\\'" nil "lzma" nil nil "unlzma" nil
nil t ""])
(jka-compr-set 'jka-compr-compression-info-list
jka-compr-compression-info-list))
PS: I'm not sure whether to use nil or "" for this case: there is no
reliable magic for lzma files. From my /usr/share/file/magic:
# URL: http://www.7-zip.org/sdk.html
# From: Robert Millan <rmh@aybabtu.com> and Reuben Thomas <rrt@sc3d.org>
# Commented out because apparently not reliable (according to Debian
# bug #364260)
#0 string ]\000\000\200\000 LZMA compressed data
In GNU Emacs 23.0.90.1 (i486-pc-linux-gnu, GTK+ Version 2.12.11)
of 2009-02-07 on elegiac, modified by Debian
(emacs-snapshot package, version 1:20090207-1)
configured using `configure '--build' 'i486-linux-gnu' '--host'
'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib'
'--libexecdir=/usr/lib' '--localstatedir=/var' '--infodir=/usr/share/info'
'--mandir=/usr/share/man' '--with-pop=yes'
'--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/23.0.90/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.0.90/site-lisp:/usr/share/emacs/site-lisp'
'--with-x=yes' '--with-x-toolkit=gtk' 'build_alias=i486-linux-gnu'
'host_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -DSITELOAD_PURESIZE_EXTRA=5000 -g
-O2' 'LDFLAGS=-g -Wl,--as-needed' 'CPPFLAGS=''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: C
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: en_AU.utf8
value of $XMODIFIERS: nil
locale-coding-system: utf-8-unix
default-enable-multibyte-characters: t
Major mode: Emacs-Lisp
Minor modes in effect:
diff-auto-refine-mode: t
eldoc-mode: t
paredit-mode: t
shell-dirtrack-mode: t
rcirc-track-minor-mode: t
savehist-mode: t
icomplete-mode: t
partial-completion-mode: t
show-paren-mode: t
delete-selection-mode: t
tooltip-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
global-auto-composition-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
column-number-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
ESC x i r c C-j ESC x g n u s RET q y C-c C-@ C-c C-l
ESC o ESC a C-c C-@ C-c C-@ C-c C-@ C-c C-@ C-c C-@
C-c C-@ C-x C-f ~ / V C S / C-j C-h C-s ESC O B ESC
O B ESC > C-x C-f ~ / . e m a c s RET ESC O A ESC O
A ESC [ 1 ~ ESC O A C-@ ESC O B ESC O B ESC O B ESC
O B ESC w ESC x r e p o r t SPC e m a c s RET
Recent messages:
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