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bug#3770: marked as done (archive-mode: recognize ZIP files with non-sta


From: Emacs bug Tracking System
Subject: bug#3770: marked as done (archive-mode: recognize ZIP files with non-standard "PK00" header)
Date: Sun, 12 Jul 2009 19:05:08 +0000

Your message dated Sun, 12 Jul 2009 14:56:27 -0400
with message-id <address@hidden>
and subject line Re: archive-mode: recognize ZIP files with non-standard "PK00" 
header
has caused the Emacs bug report #3770,
regarding archive-mode: recognize ZIP files with non-standard "PK00" header
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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-- 
3770: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=3770
Emacs Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: archive-mode: recognize ZIP files with non-standard "PK00" header Date: Mon, 06 Jul 2009 23:28:37 +0100 User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)
Some ZIP files have the string "PK00" before the first PK^C^D header.
Apparently this is added by certain archivers when writing to removable
media.

archive-find-type does not currently recognize such files.  The rest of
archive-mode handles them correctly, so I believe they can be supported
with a trivial change: something like

diff --git a/lisp/arc-mode.el b/lisp/arc-mode.el
index cc59d6e..174d205 100644
--- a/lisp/arc-mode.el
+++ b/lisp/arc-mode.el
@@ -716,7 +716,7 @@ archive.
   ;; 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)
+    (cond ((looking-at "\\(PK00\\)?[P]K\003\004") 'zip)
          ((looking-at "..-l[hz][0-9ds]-") 'lzh)
          ((looking-at "....................[\334]\247\304\375") 'zoo)
          ((and (looking-at "\C-z")     ; signature too simple, IMHO



--- End Message ---
--- Begin Message --- Subject: Re: archive-mode: recognize ZIP files with non-standard "PK00" header Date: Sun, 12 Jul 2009 14:56:27 -0400
> Some ZIP files have the string "PK00" before the first PK^C^D header.
> Apparently this is added by certain archivers when writing to removable
> media.

Thanks.  I've checked in your patch into CVS trunk.

--- End Message ---

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