On 2019-07-02 14:34, ph10 wrote:
A Perl developer has admitted there is some ambiguity, but suggests that
(*COMMIT) just means "never advance the starting point". That patterncan
find a match without advancing the starting point. I have pointedout
that, in that case, /.*(*COMMIT)c/ should also match, but itdoesn't.
This is still under discussion by the Perl people. It may takesome time
for a conclusion to emerge.
Your example
/.*(*COMMIT)c/
is very reasonable and contradicts with that words of perl authors.
And here is another example. Perl reports no match as if it backtracks to
(*COMMIT) into possessive group:
/(?>.b(*COMMIT))*c/
abxabc
0: abc
It seems a Perl is so buggy or have really different conception of
(*COMMIT) then PCRE.
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