On Jan 5, 12:13 am, [email protected] (Erez Schatz) wrote:
> 2010/1/5 Jeff Peng <[email protected]>:
> ...
>
> 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 ).
>
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Are you sure about that?  AFAIK, even pre-5.6,  the /o modifier
only affected regexes that needed to interpolate variables.

--
Charles DeRykus


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