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http://bugs.exim.org/show_bug.cgi?id=1336
Zoltan Herczeg <hzmester@???> changed:
What |Removed |Added
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CC| |hzmester@???
--- Comment #1 from Zoltan Herczeg <hzmester@???> 2013-02-13 07:48:25 ---
Since PCRE aims for Perl compatibility, I would not introduce new sequences.
This may lead to incompatibility if Perl introduce a different escape sequence
using the very same name.
However, you can use recursions for such task:
/(?(DEFINE) ([a-z][a-z0-9]+) )(?1),(?1)/
This pattern search two identifiers separated by a comma. You don't need to
repeat the pattern for the identifier, it is represented by (?1), since it is
the first capturing bracket. I am not sure you can use descriptive names
here...
You can also use /([a-z][a-z0-9]+),(?1)/ in this special case, but I also
wanted to show you the (DEFINE) conditional block as well.
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