Re: modern regexes in emacs

[Clément Pit-Claudel]

On 15/02/2019 14.52, Eli Zaretskii wrote:
> You cannot seriously propose a global setting that will switch to 
> PCRE syntax

No, not at all. Where did you see a hint of me suggesting that?

> as that will cause a lot of breakage.

Just to clarify, I'm looking for a solution that would not break anything.  
Using a flag in the regexp might be one such solution ("\(?pcre:…regexp 
here…\)"), or it might not.

> Suddenly we are talking about using PCRE everywhere?  Please hold
> your horses.
I'm talking about allowing PCRE everywhere, not necessarily using it 
everywhere.  And FWIW, I don't care whether it's PCRE, I just would like to use 
some of the more advanced features.