https://bugs.exim.org/show_bug.cgi?id=2182
--- Comment #2 from John Tattarakis <[email protected]> --- Sorry, me again. Further results and info: lookbehinds are also plagued. For example: ^a(?:(?<=(.))[^c])*c Matched against the string "abc" produces \1 = "b". PCRE, Python, and Java regexes all exhibit this behaviour. Perl, Javascript, and .NET regexes do not. Apparently the big implementations are completely divided on how to handle this situation. I would argue this is a bug rather than a difference of opinion given the following result as compared to the above example: ^a(?:(?<=(.))[^b])*b Now this matched against the string "abc" doesn't set \1. This seems inconsistent with the earlier result. -- You are receiving this mail because: You are on the CC list for the bug. -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
