Re: modern regexes in emacs

[Eli Zaretskii]

> From: Philippe Vaucher <address@hidden>
> Date: Fri, 15 Feb 2019 14:42:43 +0100
> Cc: emacs-devel <address@hidden>, Jay Kamat <address@hidden>,
>       Elias Mårtenson <address@hidden>,
>       "Perry E. Metzger" <address@hidden>
> 
> I think the purpose of this thread is to ask for emacs to support PCRE 
> regexpes in commands like
> `query-replace-regexp`.
> 
> Would this even be possible? I can imagine a whole lot of packages breaking 
> if the regexp syntax changed,
> and changing it just for the user input in interactive functions looks a bit 
> sketchy.

It should be possible if we introduce new functions for PCRE, or if we
mark PCRE regexps in some special way, like put a special text
property on the string.