#!/usr/bin/perl
use strict;
my @urls = qw(http://foo.com/downloads/pkg-5.6.tar.gz
http://bar.com/list/file-5.6-win32.zip
example.org/subd/golf.txt
http://digg.com/page4
http://www.cnn.com/2008/US/07/17/beck.che.guevara/index.html
);



for my $url (@urls){
   
   print STDERR "URL: $url\n";
   my $segment = url_segments($url);
   for my $key ( sort keys %$segment ){
      my $val = $segment->{$key};
      print STDERR " - $key : $val\n";
   }
   print STDERR "\n";
}


exit;





sub url_segments {
   my $url = shift;

   my %segment = ( 
      url => $url,
      domain => undef,
      location => undef,
      location_relative => undef,
      filename => undef,
      filename_only => undef,
      extension => undef,
      query_string => undef,
      protocol => undef,
   );
   
   if ( $url=~s/(\?.*)$// ) {# take out possible query string
      $segment{query_string}  = $1;
   }

   if ( $url=~s/^([a-z]{3,5})\:\/\///i ){
      $segment{protocol}      = $1;
   }

   if ( $url=~s/^([\w\.]+)// ){
      $segment{domain}        = $1;
   }
   
   
   


   if ( $url=~s/([^\/]+)\.([a-z0-9]{1,5})$// ){
      $segment{filename}      = "$1.$2";
      $segment{filename_only} = $1;
      $segment{extension}     = $2;
   }

   if ( $url ){
      $segment{location_relative} = $url;
      $segment{location} = $segment{domain}.$segment{location_relative};
   }
   
   return \%segment; 
}