On Wed, Feb 06, 2019 at 12:26:00AM +1300, Richard O'Keefe wrote: > Please DON'T move to PCRE. > "Outside world standards"? There are so many. > There are two important things to know about > PCRE: (1) it is a popular open source regexp > library for Perl-style regexps, (2) because of > that, it is prone to truly horrendous performance > problems. There are alternatives, such as re2, > https://github.com/google/re2 , > which are not subject to PCRE's intrinsic > performance pathologies. As it happens, re2 > supports *? +? and ??.
Can you share some examples of PCRE's bad performance? Pierce
