why so complicated? 
$_ =~
http://www.google.com
<a href="http://www.google.com">fail a match here</a>
~;

s#^(http://\S+)#<a href="$1">$1</a>#gmsi;
print;

[download]
Whatever multiline matching you are trying to do the you should use the /m flag.
print+qq(\L@{[ref\&@]}@{['@'x7^'!#2/"!4']});

In reply to Re: Regex: Lookahead by codeacrobat
in thread Regex: Lookahead by Rodster001

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