Re: modern regexes in emacs

[Clément Pit-Claudel]

On 15/02/2019 13.36, Eli Zaretskii wrote:
> I proposed to have a separate set of functions that will accept PCRE
> syntax.  That would allow everyone to have what they want: you to use
> the "classic" regexps, and those who want PCRE to have that.  Where's
> the problem with that?

I think that solution doesn't let you pass regexps using fancy PCRE features to 
existing code through defvars and defcustoms.  As a concrete example, sometimes 
assertions would be useful in regexps that define outlines, or in syntax 
highlighting, or in comment marker definitions. 

Clément.