Re: Ugly regexps

[Helmut Eller]

On Tue, Mar 02 2021, Stefan Monnier wrote:

> BTW, while this theme of ugly regexps keeps coming up, how 'bout we add
> a new function `ere` which converts between the ERE style of regexps
> where grouping parens are not escaped (and plain chars meant to match
> an actual paren need to be escaped instead) to ELisp-style regexps?
>
> So you can do
>
>     (string-match (ere "\\(def(macro|un|subst) .{1,}"))

Better call it (rx (ere STRING)).  Namespace pollution may not be
prohibited by the law but mother Emacs may thank you anyway :-)

Helmut