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bug#4689: marked as done (23.1.50; Matching of error lines in *compilati

From: Emacs bug Tracking System
Subject: bug#4689: marked as done (23.1.50; Matching of error lines in *compilation* buffer is broken for perl-files)
Date: Tue, 13 Oct 2009 03:45:08 +0000

Your message dated Mon, 12 Oct 2009 23:39:58 -0400
with message-id <address@hidden>
and subject line Re: Bug#3928
has caused the Emacs bug report #3928,
regarding 23.1.50; Matching of error lines in *compilation* buffer is broken  
for perl-files
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
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact address@hidden

3928: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=3928
Emacs Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: 23.1.50; Matching of error lines in *compilation* buffer is broken for perl-files Date: Fri, 9 Oct 2009 15:40:36 +0200 > Please describe exactly what actions triggered the bug
> and the precise symptoms of the bug:

- Installing emacs 23
- Loading perl-code with errors
- M-x mode-compile

- Effect: The errorlines, filenames and linenumbers are not recognized or activated in *compilation*

No problem whatsoever with emacs 22 and the same configs!

The problem didn't occure while compiling sh or python files!!!

The problem was reproducible on different machines with Ubuntu 8.04 and 8.10 but not with Windows XP, all with default installation with German localization.

It was reported NOT to happen with Ubuntu 9.04 on an american machine.

For detailed discussion including a WORKING REGEX-PATCH for mode-compile.el please look at:

--> http://groups.google.de/group/gnu.emacs.help/browse_thread/thread/c1a62e304177fefe/9a28488347dd77e7#9a28488347dd77e7

--> http://groups.google.com/group/emacs-perl-intersection/browse_thread/thread/328823127d1f8b7/8adaceafa79cc216#8adaceafa79cc216

DIAGNOSIS: It seems like the handling of regexes in compile.el changed considerably from
22 to 23, breaking compatibility with mode-compile.el!!!

A sample perl code to produce 4 error-lines is:
use strict;
print $a;

> If Emacs crashed ....

No crash!

In GNU Emacs (i686-pc-linux-gnu, GTK+ Version 2.14.4)
 of 2009-10-08 on nc10-ubuntu
Windowing system distributor `The X.Org Foundation', version 11.0.10502000
configured using `configure  '--prefix=/home/lanx/lib/emacs-cvs''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  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: de_DE.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Perl

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
M-x m o d e - c o m p i l <tab> <return> <return> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <menu-bar> <help-menu>

Recent messages:
loading debug.el
leaving debug.el
For information about GNU Emacs and the GNU system, type C-h C-a.
Use M-x make-directory RET RET to create the directory and its parents [2 times]
lade mode-compile.el
Loading cl-macs...done
Loading `mode-compile': old-style backquotes detected!
mode-compile: Compiling in Perl mode ... M-x mode-compile-kill to kill.
(No files need saving)
Compilation exited abnormally with code 255

Load-path shadows:
/home/lanx/lib/emacs-cvs/share/emacs/23.1.50/lisp/progmodes/cperl-mode hides /home/lanx/.emacs.d/debug/cperl-mode

--- End Message ---
--- Begin Message --- Subject: Re: Bug#3928 Date: Mon, 12 Oct 2009 23:39:58 -0400 User-agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/)
Fixed by this change:

2009-10-12  Sam Steingold  <sds at gnu.org>

* progmodes/compile.el (compilation-mode-font-lock-keywords): Do not
  prepend "^ *" to non-anchored patterns, like the perl one (bug#3928).

--- End Message ---

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