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From: Stefan Monnier <monnier@iro.umontreal.ca>
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Subject: Re: (X)Emacs abbrev mode
Date: Wed, 24 Feb 2010 14:37:05 -0500
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> I was wondering if you could tell me why the following works in XEmacs and
> not in Emacs.

Because Emacs only accepts "words" as abbreviations by default.
If you want to support something else (i.e. abbreviations that contains
chars that are not marked as words in the syntax-table), then you need
to tweak your abbreviation table by setting its :regexp property.


        Stefan