GNU bug report logs - #12622
replace-regexp-in-string

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From: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 12622 <at> debbugs.gnu.org, Andreas Schwab <schwab <at> linux-m68k.org>
Subject: bug#12622: replace-regexp-in-string
Date: Fri, 12 Oct 2012 18:07:30 +0200

Am 12.10.2012 16:22, schrieb Stefan Monnier:
>> Nonetheless consider it a design flaw, us it requires a argument taking
>> function, where a expression just to evaluate would suffice.
>
> You need some way to distinguish "here's an expression that will return
> the string that needs to be passed as argument" from "here's the
> expression that needs to be passed as argument, to be evaluated later in
> each iteration of the loop".  The distinction is made by wrapping the
> expression in a `lambda'.
>
>
>          Stefan
>

will keep that under my pillow :)

back to the question:

what about writing here instead

 (funcall rep (match-string 0 str)))

just

(eval rep)

i.e. let the user decide how to construct, if not delivered a regexp as string

Best,

Andreas

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