On 2011-05-02 15:48, Herczeg Zoltán wrote:
It is true, that you may have several forms to achive the same purpose, but I would prefer a conditional block here since that would be much more reasonable: (?(?=a(b)))
And then you meet another compatibility problem: PCRE unlike Perl don't capture subpatterns in assertions-conditions. Here is pcretest listing: PCRE version 8.11 2010-12-10 /(?(?=a(b)).*d\1|.*d)/s abdb 0: bd -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
