sean orourke rwqjlcsucsdedu recently stumbled across tim brays wide finder1 benchmark noticed current perl solution good one c cs later much faster program parallel mg matches mapped scalar attached problem works 588 unimaginably slow blead regex engine insists copying target string preserve 1 way promise perl wont touch match target example maybe perl_regexec_flags could check svreadonly line make sure digit work later personally would happy simply lose modified matchedagainst string later looked 1 etc since behavior removed guess im minority sean 1 httpwwwtbrayorgongoingwhen200x20070920widefinder thu 07 aug 2008 123826 0800 possible avoid slowdown large mg