Re: Returning argument string (regexp-quote)

[Eli Zaretskii]

> Feedback-ID: address@hidden
> From: Mattias Engdegård <address@hidden>
> Date: Tue, 24 Sep 2019 13:28:15 +0200
> 
> More generally, do we need to preserve allocation for functions not 
> specifically documented to return new strings? I can imagine there being code 
> that depend on it by accident, but string mutation is rare.

I think the benefits from such general changes are barely tangible,
whereas the risk of breaking someone's (perhaps even ours) code are
real.  So I don't think we should do that, not in general.