Subject: Re: bug#49214: dabbrev-expand vs. ： vs. :

From: Eli Zaretskii <[email-masked]>
Date: Fri, 25 Jun 2021 08:44:21 +0300

> From: Lars Ingebrigtsen <[email-masked]>
> Date: Thu, 24 Jun 2021 21:43:52 +0200
> Cc: [email-masked]
> 
> That is, ： is word-constituent.  I'm not sure whether it's reasonable
> for dabbrev to use \\sw as the regexp here

Why not?  dabbrev-expand expands words, not any arbitrary sequences of
characters.