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http://bugs.exim.org/show_bug.cgi?id=1393
--- Comment #3 from ouadji <ouadji@???> 2013-10-08 17:16:49 ---
"What do you mean by 'all except "xyz"'?
Do you mean "match 3 characters,but not 'xyz'"?
yes, 3 characters,but not 'xyz'. (xya, xxx, 12z ...)
"You can get whatever effect you want by using a lookahead.
For example: (xyz)(?!\1)
no.
(3)(?!\1) ... matches 3 from input string a3bc
the term (?!\1) is just a conditional term,
but (?!\1)is not included in the match.
The good résult would be 3b.
"Nothing like you suggest exists in Perl ..."
I suspected a answer like this one. I understand, but it's a pity.
i think that be able to get the opposite of a reference would be sometimes a
very useful feature ! (in Perl and therefore also in PCRE)
but like you say, if nothing like i suggest exists in Perl
... then this is a dead end. :-)
Regards,
ouadji,
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