[mmaug@yahoo.com: font-lock applied to comint prompts]

* [mmaug@yahoo.com: font-lock applied to comint prompts]
@ 2006-11-22 13:17 Richard Stallman
  0 siblings, 0 replies; 8+ messages in thread
From: Richard Stallman @ 2006-11-22 13:17 UTC (permalink / raw)

It's possible that this is something that fundamentally cannot be
fixed, but maybe not.  Would someone please take a look, DTRT, and
then ack?

------- Start of forwarded message -------
To: emacs-pretest-bug@gnu.org
From: Michael Mauger <mmaug@yahoo.com>
Date: Mon, 20 Nov 2006 21:04:08 +0000 (UTC)
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Subject: font-lock applied to comint prompts
X-Spam-Status: No, score=2.2 required=5.0 tests=FORGED_YAHOO_RCVD 
	autolearn=no version=3.0.4

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 emacs-pretest-bug@gnu.org mailing list.

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

* emacs -Q
* M-x shell RET
(assuming sh-type command interpreter)
* in *shell* buffer: 

  $ PS1='x -y $ '
  x -y $ ls -l >/dev/null
  x -y $ 

Once the ls command is entered on the second line, the -y in the
prompt gets highlighted the same way that the -l in the ls command
gets highlighted.  

doing `C-u C-x =' on the `y' in the prompt on the last line gives:
    character: y (121, #o171, #x79, U+0079)
      charset: ascii (ASCII (ISO646 IRV))
   code point: #x79
       syntax: w 	which means: word
     category: a:ASCII l:Latin
  buffer code: #x79
    file code: #x79 (encoded by coding system iso-latin-1-unix)
      display: by this font (glyph code)
       -outline-Bitstream Vera Sans Mono-normal-i-normal-normal-11-82-96-96-c-*-
iso8859-1 (#x79)

  There is an overlay here:
   From 240 to 247
    font-lock-face       comint-highlight-prompt

  There are text properties here:
    face                 font-lock-comment-face
    field                output
    fontified            t
    inhibit-line-move-field-capture t
    rear-nonsticky       t

Doing the same on the second, now fontified, prompt gives:
    character: y (121, #o171, #x79, U+0079)
      charset: ascii (ASCII (ISO646 IRV))
   code point: #x79
       syntax: w 	which means: word
     category: a:ASCII l:Latin
  buffer code: #x79
    file code: #x79 (encoded by coding system iso-latin-1-unix)
      display: by this font (glyph code)
       -outline-Bitstream Vera Sans Mono-normal-r-normal-normal-11-82-96-96-c-*-
iso8859-1 (#x79)

  There are text properties here:
    face                 font-lock-comment-face
    field                output
    font-lock-face       comint-highlight-prompt
    fontified            t
    inhibit-line-move-field-capture t
    rear-nonsticky       t

I've seen this in other comint-like buffers as well (*sql*).  Is there
a way to protect/prevent the prompt string from being font-lock'd?

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
c:/emacs/etc/DEBUG for instructions.

In GNU Emacs 22.0.90.1 (i386-mingw-nt5.1.2600)
 of 2006-11-16 on ASSHOLE1
X server distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.2) --cflags -
Ic:/devel/GnuWin32/include --ldflags -Lc:/devel/GnuWin32/lib -
Lc:/devel/GnuWin32/bin'

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: ENU
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Shell

Minor modes in effect:
  auto-insert-mode: t
  server-mode: t
  show-paren-mode: t
  recentf-mode: t
  global-hl-line-mode: t
  hl-line-mode: t
  cua-mode: t
  shell-dirtrack-mode: t
  encoded-kbd-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
s <backspace> <backspace> P S 1 = ' i f SPC $ ' <return> 
M-p <left> SPC <end> <return> l s SPC <backspace> <backspace> 
<backspace> c a t SPC < / d e v / n u l l <return> 
i f SPC <backspace> <backspace> <backspace> M-p M-p 
<left> <left> <left> <left> <left> <left> - <return> 
M-p M-p <return> M-p M-p <left> <left> <left> <left> 
<left> <left> <left> c a t SPC <return> M-p M-p <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> <menu-bar> <help-menu> <report-emacs-bug>

Recent messages:
Char: Q (81, #o121, #x51) point=4941 of 4944 (100%) column=1
History item: 1 [2 times]
History item: 2
History item: 1
History item: 2
History item: 1
History item: 2
History item: 1
History item: 2
Loading emacsbug...done

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