Re: regular expressions that match nothing

[Mattias Engdegård]

15 maj 2019 kl. 22.17 skrev Michael Heerdegen <address@hidden>:
> 
> Should there be an rx regexp form for this?

We don't necessarily need a special form for it; we can just make `(or)' work.

Proposed patch attached. (I also added its dual, (seq), since it would be silly 
not to.)

0001-Allow-zero-argument-rx-or-and-seq-forms.patch
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