Jeffrey C. Jacobs <[EMAIL PROTECTED]> added the comment: Perl gives this result for your new expression:
"",undef,undef undef,undef,"abc" undef,"",undef I think it has to do with not thinking of a string as a sequence of characters, but as a sequence of characters separated by null-space. Null-space is can be captured, but ONLY if it is part of a zero-width match, and once captured, it can no longer be captured by another zero-width expression. This is in keeping which what I see as Perl's behaviour, namely that the (q*) group never participates in the first match because, initially the (^z*) captures it. OTOH, when it gets to the null-space AFTER the 'abc' capture, the (^z*) cannot participate because it has a "at-beginning" restriction. The evaluator then moves on to the (q*), which has no such restriction and this time it matches, consuming the final null-space. _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue1647489> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
