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

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From: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
To: Andreas Schwab <schwab <at> linux-m68k.org>
Cc: 12622 <at> debbugs.gnu.org
Subject: bug#12622: replace-regexp-in-string
Date: Fri, 12 Oct 2012 08:32:39 +0200

Am 11.10.2012 18:52, schrieb Andreas Schwab:
> Andreas Röhler <andreas.roehler <at> easy-emacs.de> writes:
>
>> (setq mystring "[.A foobar] [.B baz]")
>> (replace-regexp-in-string "\\_<\\w+\\_>" (concat "\\\\" (match-string-no-properties 0)) mystring) ==>
>>
>>   "[.A \\ext in that fi] [.B \\ext in that fi]"
>>
>> for example,
>>
>> Docstring says:
>>
>> "If it is a function, it is called with the actual text of each
>> match, and its value is used as the replacement text."
>>
>> Which is not the case AFAIS.
>
> You are not passing a function.
>
> Andreas.
>

okay.

that works:

(replace-regexp-in-string "\\_<\\w+\\_>" (lambda (x) (concat "\\\\" x)) mystring)

Nonetheless consider it a design flaw, us it requires a argument taking function, where a expression just to evaluate would suffice.

Andreas

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