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From: Chong Yidong <cyd@gnu.org>
To: "Drew Adams" <drew.adams@oracle.com>
Cc: 12054@debbugs.gnu.org
Subject: bug#12054: 24.1; regression? font-lock no-break-space with nil nobreak-char-display
Date: Sat, 03 Nov 2012 18:50:53 +0800	[thread overview]
Message-ID: <87mwyzyn76.fsf@gnu.org> (raw)
In-Reply-To: <DF038DCF4ADC487A8BA61B77BCE361A1@us.oracle.com> (Drew Adams's message of "Wed, 25 Jul 2012 22:43:29 -0700")

"Drew Adams" <drew.adams@oracle.com> writes:

> (defface foo '((t (:background "Yellow"))) "" :group 'faces)
> (setq nobreak-char-display nil)
> (font-lock-add-keywords nil '(("[\240]+" (0 'foo t))) 'APPEND)
>  
> Insert a no-break space:
> C-x 8 RET no-break-space (or C-q 240 RET)
>  
> Turn font-lock-mode off, then back on.
>  
> With point before the no-break-space, C-u C-x =.  That shows that the
> character is indeed a no-break-space, and there is no face on it.

"[\240]+" doesn't do what you want.  Octal 240 is a unibyte character,
so that string constant specifies a unibyte string.  When this unibyte
string is converted to multibyte, the raw byte becomes codepoint
#x3ffa0.

You should use either of these instead:

(font-lock-add-keywords nil '(("[\u00a0]+" (0 'foo t))) 'APPEND)
(font-lock-add-keywords nil '(("[ ]+" (0 'foo t))) 'APPEND)





  parent reply	other threads:[~2012-11-03 10:50 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-26  5:43 bug#12054: 24.1; regression? font-lock no-break-space with nil nobreak-char-display Drew Adams
2012-09-16 23:40 ` Drew Adams
2012-11-03 10:50 ` Chong Yidong [this message]
2012-11-03 11:03   ` Chong Yidong
2012-11-03 16:25   ` Drew Adams
2012-11-03 16:56     ` Eli Zaretskii
2012-11-03 17:22       ` Drew Adams
2012-11-03 20:57         ` Eli Zaretskii
2012-11-03 19:50       ` Stefan Monnier
2012-11-03 20:02         ` Drew Adams
2012-11-03 20:36           ` Stefan Monnier
2012-11-03 20:42             ` Drew Adams
2012-11-03 17:06     ` Chong Yidong
2012-11-03 17:32       ` Drew Adams
2012-11-03 18:00         ` Chong Yidong
2012-11-03 18:04           ` Drew Adams
2012-11-03 21:00           ` Eli Zaretskii
2012-11-03 19:01       ` Drew Adams
2012-11-03 21:13         ` Eli Zaretskii
2012-11-04 23:34           ` Drew Adams
2012-11-03 16:37   ` Andreas Schwab
2012-11-03 17:05     ` Drew Adams

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