On Jan 5, 12:13 am, moonb...@gmail.com (Erez Schatz) wrote: > 2010/1/5 Jeff Peng <jeffp...@netzero.net>: > > ... > This is something that Perl (post version 5.6) does inherently, which > is compiling a regex only once as long as the pattern isn't modified. > Prior to 5.6 you'd need to use the /o modifier ( > m/href="http:\/\/(.*?)\/.*" target="_blank"/o ). >
Um no. The /o modifer stops re-compilation only if the regex needs to interpolate a variable. Otherwise, /o has no effect. Perl, has always AFAIK, cached regex compilations for re-use if there aren't variable interpolations since then the regex can't possibly change. -- Charles DeRykus -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
