http://www.perlmonks.org?node_id=1001656


in reply to Re: Find Prefix if regex didn't match
in thread Find Prefix if regex didn't match

Thanks for your fast answer!

some good aproaches but no hit...

pos() doesn't work because if the string only contains a prefix of the given expression (what will be the hot case I'm looking for) I will get undef and not the position I need or do I overlook sth. here?

My "window" can become as large as it likes, doesn't matter, but I have to ensure that no matching will be overseen, that's quite important! It's just to make the searching faster and if I know that the first n characters can be thrown away because they can never be part of a matching would do the job. Any alternative suggestion?