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bug#4192: 23.1; special fontification for "//" in cc-mode


From: Tom Tromey
Subject: bug#4192: 23.1; special fontification for "//" in cc-mode
Date: Tue, 18 Aug 2009 10:24:02 -0600

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the address@hidden mailing list,
and to the gnu.emacs.bug news group.

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


This is a feature request for cc-mode.

I work on a number of projects that use C89, not C99.  In these
projects, it is invalid to use "//"-style comment.  It would be nice if
cc-mode would optionally flag such comments in a special face, so that I
can immediately see when I've written a comment incorrectly.


If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/share/emacs/23.1/etc/DEBUG for instructions.


In GNU Emacs 23.1.1 (i386-redhat-linux-gnu, GTK+ Version 2.16.5)
 of 2009-08-03 on x86-5.fedora.phx.redhat.com
Windowing system distributor `The X.Org Foundation', version 11.0.10601901
configured using `configure  '--build=i386-redhat-linux-gnu' 
'--host=i386-redhat-linux-gnu' '--target=i586-redhat-linux-gnu' 
'--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' 
'--sbindir=/usr/sbin' '--sysconfdir=/etc' '--datadir=/usr/share' 
'--includedir=/usr/include' '--libdir=/usr/lib' '--libexecdir=/usr/libexec' 
'--localstatedir=/var' '--sharedstatedir=/var/lib' '--mandir=/usr/share/man' 
'--infodir=/usr/share/info' '--with-dbus' '--with-gif' '--with-jpeg' 
'--with-png' '--with-rsvg' '--with-tiff' '--with-xft' '--with-xpm' 
'--with-x-toolkit=gtk' 'build_alias=i386-redhat-linux-gnu' 
'host_alias=i386-redhat-linux-gnu' 'target_alias=i586-redhat-linux-gnu' 
'CFLAGS=-DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 
-fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i586 
-mtune=generic -fasynchronous-unwind-tables''

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: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  erc-list-mode: t
  erc-menu-mode: t
  erc-autojoin-mode: t
  erc-ring-mode: t
  erc-pcomplete-mode: t
  erc-track-mode: t
  erc-track-minor-mode: t
  erc-match-mode: t
  erc-button-mode: t
  erc-fill-mode: t
  erc-stamp-mode: t
  erc-netsplit-mode: t
  erc-spelling-mode: t
  erc-truncate-mode: t
  diff-auto-refine-mode: t
  shell-dirtrack-mode: t
  highlight-changes-visible-mode: t
  erc-status-mode: t
  erc-services-mode: t
  erc-networks-mode: t
  erc-irccontrols-mode: t
  erc-noncommands-mode: t
  erc-move-to-prompt-mode: t
  erc-readonly-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-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:
e a t u r e s , SPC b u t SPC i t SPC d i d SPC b r 
e a k SPC w 3 m - e l SPC f o r SPC m e SPC : ( <return> 
n o SPC m o r e SPC h t m l SPC m a i l SPC f o r SPC 
a SPC w h i l e <return> <switch-frame> <switch-frame> 
m a y b e SPC t h a t SPC i s SPC a SPC p l u s SPC 
<return> <f10> <f10> <f10> M-v M-> <f10> C-z o C-x 
b P <return> C-x k <return> C-x b L <tab> <return> 
C-v C-v M-v M-v M-v C-z o <f10> <f10> <f10> <f10> C-h 
i d m c c <tab> SPC m <tab> <return> C-v C-l m o d 
<tab> <return> l C-v C-s c o m m e n t C-a m <return> 
C-v C-s C-s C-v M-> C-s C-s C-s C-s C-s C-s C-s C-a 
C-v M-> C-s C-s C-s C-s C-a n n n n C-s C-s C-a SPC 
n u n n p 1 u SPC SPC SPC SPC SPC SPC p SPC n SPC n 
n u n SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC 
<backspace> n SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC 
SPC n SPC SPC SPC SPC SPC SPC n n n n n n C-s / / C-a 
C-v n C-s C-s C-a n n t C-s / / C-s C-s C-s C-s C-s 
C-s C-s C-s C-s C-s C-s C-s C-s C-s C-s C-s C-s C-a 
q C-z o M-x r e p r o t - e C-u C-b C-b C-f C-t C-e 
m <tab> <return>

Recent messages:
call-interactively: End of buffer
Mark set
Mark saved where search started
Mark set
Mark saved where search started
Info-extract-pointer: Node has no Next [2 times]
Searching subfile ccmode-2...
uncompressing ccmode-2.gz...done
uncompressing ccmode-1.gz...done
Mark saved where search started

Tom






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