Subject: bug#9458: closed (Re: bug#9458: 24.0.50; Searching in binary buffers)

From: [email-masked] (GNU bug Tracking System)
Date: Wed, 07 Sep 2011 16:56:02 +0000

Your bug report

#9458: 24.0.50; Searching in binary buffers

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
9458: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9458
GNU Bug Tracking System
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Subject: Re: bug#9458: 24.0.50; Searching in binary buffers
From: Andreas Schwab <[email-masked]>
To: Helmut Eller <[email-masked]>
Cc: [email-masked]
Date: Wed, 07 Sep 2011 18:51:26 +0200
List-Id: <debbugs-submit.debbugs.gnu.org>

Fixed on emacs-23 branch.

Andreas.

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Andreas Schwab, [email-masked]
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

Subject: 24.0.50; Searching in binary buffers
From: Helmut Eller <[email-masked]>
To: [email-masked]
Date: Wed, 07 Sep 2011 14:50:29 +0200
List-Id: <debbugs-submit.debbugs.gnu.org>

search-forward seems to work strangely in binary/unibyte buffers.
Create a file test.el containing this code:

(defvar test-string (unibyte-string #xce))

(with-temp-file "test.txt"
  (set-buffer-multibyte nil)
  (setq buffer-file-coding-system 'binary)
  (insert test-string))

(with-current-buffer (get-buffer-create "test.txt")
  (set-buffer-multibyte nil)
  (setq buffer-file-coding-system 'binary)
  (erase-buffer)
  (insert-file-contents "test.txt")
  (search-forward test-string))

Executing this with: emacs -Q -batch -l test.el
prints: 
Search failed: "Î"
[Exit 255]

The Lisp code creates a file test.txt for a single character ?\xce.  As
expected, hexdump -C test.txt prints: 
00000000  ce                                                |Î|
00000001

Opening and searching that character with Emacs fails.  That's
definitely not what I was expecting.  What's the proper way to search
those characters?

In GNU Emacs 24.0.50.4 (i686-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2011-09-05 on ix
Windowing system distributor `The X.Org Foundation', version 11.0.10707000
configured using `configure  '--enable-asserts' '--enable-checking' '--with-gif=no' '--with-gnutls=no' 'CFLAGS=-g3 -O0''