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Re: regular expressions that match nothing

From: Eric Abrahamsen
Subject: Re: regular expressions that match nothing
Date: Thu, 16 May 2019 11:12:04 -0700
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux)

Mattias Engdegård <address@hidden> writes:

> tis 2019-05-14 klockan 15:41 -0400 skrev Stefan Monnier:
>> Yes, please.  I'd recommend a `regexp-` prefix for it.
> Well, since you asked so nicely!
>> [ And I'll carefully avoid having an opinion on the rest of the name.
>> ]
> The correct name is obviously something like `regexp-empty', but I have
> to concede that it might be misinterpreted. The attached patch uses
> `regexp-unmatchable' which is reasonably descriptive. Better
> suggestions are welcome.

regexp-null? It's also a little cryptic, but it's short!

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