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From: Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups: gmane.emacs.help
Subject: Re: string-match bug?
Date: Wed, 09 Dec 2009 16:33:41 -0500
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> But simply by convention, isn't it?

No: it's the most consistent behavior, i.e. a natural consequence of the
usual rules obeyed by regular expressions.

> Aren't
>     (string-match "" "a")
> and
>     (string-match "" "")
> different cases in some perspective?

How 'bout

     (string-match "b" "ba")
vs
     (string-match "b" "b")


-- Stefan