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Re: Stumped Regular expressions

by kabeldag (Hermit)
on Jun 11, 2008 at 13:48 UTC ( [id://691464]=note: print w/replies, xml ) Need Help??


in reply to Stumped Regular expressions

I stuck a 'global' modifier on the end:
use strict;
use warnings;

my $line_count = 0;
open(F, "test.htm");
    while(<F>) {
        my @a = $_ =~ m{(http://hosting/image\d+\.jpg)}g;
        for my $url (@a) {
            print "URL [ $url ] found on line ($line_count)\n";
        }
        $line_count++;
    }
close(F);

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Re^2: Stumped Regular expressions
by toolic (Bishop) on Jun 11, 2008 at 16:34 UTC
    This could be further simplified by using the special variable $. (INPUT_LINE_NUMBER) instead of $line_count: 
    open(F, "test.htm");
    while(<F>) {
        my @a = $_ =~ m{(http://hosting/image\d+\.jpg)}g;
        for my $url (@a) {
            print "URL [ $url ] found on line ($.)\n";
        }
    }
close(F);

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