From: Eli Zaretskii <eliz@gnu.org>
To: Drew Adams <drew.adams@oracle.com>
Cc: cyd@gnu.org, 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 18:56:49 +0200 [thread overview]
Message-ID: <83vcdm4oby.fsf@gnu.org> (raw)
In-Reply-To: <45DEAA69BC6E4630BA8DA0B07A0ECE92@us.oracle.com>
> From: "Drew Adams" <drew.adams@oracle.com>
> Date: Sat, 3 Nov 2012 09:25:35 -0700
> Cc: 12054@debbugs.gnu.org
>
> Just why is it that the regexp "[\240]+" does not match this char?
Because, for histerical reasons, 'insert' treats strings such as
"\nnn" as unibyte strings.
> Why should a character-alternative expression care whether the
> representation is unibyte or multibyte? Isn't that a bug?
It's an unfortunate dark corner, due to the ambiguity of what \240
really means in a string.
> How to use octal syntax to match that char?
Why do you need the octal syntax? Why not just use a literal ? Is
that only for the sake of old Emacs versions, or for some other
reason?
> The Elisp manual says clearly that
> "The most general read syntax for a character represents the character code in
> either octal or hex." MOST GENERAL, not most limited and partial.
I see no contradiction or incorrect information in this cited text.
The octal notation does work in your example, it's just that its
semantics is not what you expected. Or am I missing something?
next prev parent reply other threads:[~2012-11-03 16:56 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
2012-11-03 11:03 ` Chong Yidong
2012-11-03 16:25 ` Drew Adams
2012-11-03 16:56 ` Eli Zaretskii [this message]
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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