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using non-Emacs regexp syntax

From: Paul Pogonyshev
Subject: using non-Emacs regexp syntax
Date: Tue, 28 Nov 2006 22:56:32 +0200
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Is there a function to convert non-Emacs regexps (e.g. "ab(c+|d)" to
Emacs regexps (example to "ab\(c+\|d\)")?

If there is none, are you interested in adding such functions?  (Of
course, not now, but after the release.)  I assume it is not worth it
to implement in C, so a Lisp implementation is in order?

(Abstract task is like this: be able to read regexps from an (XML)
file, which should be readable not only by Emacs; since Emacs syntax
is not widespread, regexps would use a different syntax.)


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