Use URI. URIs are more complicated than they seem and this makes handling them easier. Here's an example with a couple of surprise cases that show why/how a regular expression can be much more difficult. 

use strict;
use warnings;
use URI;

URI:
for my $raw ( <DATA> )
{
    my $uri = URI->new($raw);

    if ( $uri->scheme ne "https" )
    {
        warn "$uri is not secure, skipping\n";
        next URI;
    }
    if ( $uri->path =~ m,/\z, )
    {
        warn "$uri has a trailing slash, skipping\n";
        next URI;
    }
    print "GOOD: $uri\n";
}

__DATA__
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In reply to Re: string matching by Your Mother
in thread string matching by Anonymous Monk

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