GNU bug report logs - #25432
U+3001 IDEOGRAPHIC COMMA is punctuation

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From: Eli Zaretskii <eliz <at> gnu.org>
To: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
Cc: 25432 <at> debbugs.gnu.org
Subject: bug#25432: U+3001 IDEOGRAPHIC COMMA is punctuation
Date: Fri, 13 Jan 2017 10:32:01 +0200

> From: 積丹尼 Dan Jacobson
> 	<jidanni <at> jidanni.org>
> Date: Fri, 13 Jan 2017 08:05:12 +0800
> 
> M-/ (translated from <escape> /) runs the command dabbrev-expand
> 
> But when I do ESC / here,
> 
> 阿G信> 想向您請教，新北市消防局 北海頻率、Talkgroup、顏色碼、slot
> 
> 至於 Talkg<ESC />
> 
> I get
> Scanning for dabbrevs...done
> user-error: No dynamic expansion for ‘Talkg’ found
> 
> That's because "、" is not being treated like a (type of a) comma as it
> should.

No, that's because by default M-/ searches for symbol-constituent
characters, and 、 can be part of a symbol.  If you don't like that,
customize dabbrev-abbrev-char-regexp to just "\\sw".

IOW, this is a feature: Emacs is primarily a programmer's editor, so
its defaults are supposed to be tuned for that.

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