font-lock of comments with an opening paren in column 1

font-lock of comments with an opening paren in column 1

[Klaus Zeitler]

This bug report will be sent to the Free Software Foundation,
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Please write in English, because the Emacs maintainers do not have
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In GNU Emacs 21.3.1 (sparc-sun-solaris2.8, Motif Version 2.1.0)
 of 2003-04-08 on sfsws4
configured using `configure  --with-gcc --prefix=/vol/freeware/SunOS-5.8/emacs/21.3 --sharedstatedir=/vol/freeware/SunOS-5.8/emacs/21.3/share --with-x-toolkit=motif --x-includes=/usr/openwin/include:/usr/local/gnu/include --x-libraries=/usr/openwin/lib:/usr/local/gnu/lib --with-pop'
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: C
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

when I have an opening paren in column 1 of a multiline C comment, fontlock
shows parts of this comment in a "gaudy" mode.
Example:
1. emacs -q --no-site-file
2. M-x global-font-lock-mode
3. load a C-file that contains the following comment:
--- snip ---
/*
1 this is comment line number one
2 this is comment line number two
3 this is comment line number three
4 this is comment line number four
5 this is comment line number five
(now comes a comment line with opening paren in column one)
7  and another line of interesting comment  number seven
8  and another line of interesting incomment number eight
9  and another line of interesting comment number nine
10 and another line of interesting comment number ten
11 and another line of interesting comment number eleven
12 and now a colored line of comment number twelve
13 and one more colored line of comment number thirteen
*/
--- snip ---

the comment will be quite quite colorful from line 12 on


Recent input:
<escape> x g l o b a SPC f o SPC SPC SPC <return> C-x 
C-f C-a C-k ~ / t s t / c h SPC l . c <return> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <down-mouse-1> 
<double-down-mouse-1> <double-mouse-1> <help-echo> 
<help-echo> <down> C-x C-b <help-echo> <down-mouse-1> 
<mouse-1> <help-echo> <help-echo> <menu-bar> <help-menu> 
<report-emacs-bug>

Recent messages:
Loading tooltip...done
For information about the GNU Project and its goals, type C-h C-p.
Loading font-lock...
Loading regexp-opt...done
Loading font-lock...done
Global-Font-Lock mode enabled
Making completion list...
Loading view...done
Loading cc-mode...done
Loading emacsbug...done

Re: font-lock of comments with an opening paren in column 1

[Eli Zaretskii]

> Date: Wed, 9 Apr 2003 15:44:42 +0200 (MEST)
> From: Klaus Zeitler <kzeitler@lucent.com>
> 
> when I have an opening paren in column 1 of a multiline C comment, fontlock
> shows parts of this comment in a "gaudy" mode.

See the entry in etc/PROBLEMS whose name is "Font Lock displays
portions of the buffer in incorrect faces".