From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Helmut Eller Newsgroups: gmane.emacs.bugs Subject: bug#9458: 24.0.50; Searching in binary buffers Date: Wed, 07 Sep 2011 14:50:29 +0200 Message-ID: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Trace: dough.gmane.org 1315399882 2996 80.91.229.12 (7 Sep 2011 12:51:22 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 7 Sep 2011 12:51:22 +0000 (UTC) To: 9458@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Sep 07 14:51:18 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1R1Hb1-00017B-Qx for geb-bug-gnu-emacs@m.gmane.org; Wed, 07 Sep 2011 14:51:16 +0200 Original-Received: from localhost ([::1]:58879 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R1Hb1-00014c-FC for geb-bug-gnu-emacs@m.gmane.org; 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Wed, 07 Sep 2011 05:50:41 -0700 (PDT) Original-Received: from helmut by ix with local (Exim 4.72) (envelope-from ) id 1R1HaO-0001h9-6P for bug-gnu-emacs@gnu.org; Wed, 07 Sep 2011 14:50:36 +0200 User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Wed, 07 Sep 2011 08:55:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 1) X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:50665 Archived-At: 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''