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From: Nikolaj Schumacher <me@nschum.de>
Newsgroups: gmane.emacs.help
Subject: Re: problem with elisp
Date: Wed, 08 Oct 2008 22:33:50 +0200
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To: Seweryn Kokot <sewkokot@gmail.com>
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Seweryn Kokot <sewkokot@gmail.com> wrote:

> string-temp is changed to 5816MHs and in the end, the last 3 lines do
> nothing.
>
> Any idea how to solve the problem?

You can search for words only:

(re-search-forward (concat "\\b" (regexp-quote string-b) "\\b"))


Or you can give up the temp string and search for both at once like this:

(re-search-forward (concat "\\(" (regexp-quote string-a) "\\)\\|\\("
                           (regexp-quote string-a) "\\)"))

and then replace based on which one was found:

(if (match-beginning 1)
    (replace-match string-b)
  (replace-match string-a))

regards,
Nikolaj Schumacher