keiusui has asked for the wisdom of the Perl Monks concerning the following question:

Hello, is there a standard or common Perl module used to determine if a URL is valid? I do not need to check whether the URL actually exists; I just need to check whether a URL entered by a user is a valid URL string or not.

For example, the Email::Valid module does a great job of simply checking whether a string is in valid e-mail format.

Thanks!

  • Comment on perl module to determine if a URL is valid?

Replies are listed 'Best First'.
Re: perl module to determine if a URL is valid?
by moritz (Cardinal) on Sep 20, 2009 at 18:55 UTC
    I use Regexp::Common::URI for finding URLs, and it can also validate URLs.

    It comes with two caveats though: It doesn't understand https (only http), so I do something like this in my code: 

    use Regexp::Common qw /URI/;
my $re = $RE{URI}{HTTP};
$re =~ s/http/https?/g;

    [download]

    The second caveat is that it doesn't understand anchors (ie the part after a # pound sign).

    Perl 6 - links to (nearly) everything that is Perl 6.
[reply]
[d/l]
[select]
Re: perl module to determine if a URL is valid?
by ccn (Vicar) on Sep 20, 2009 at 18:57 UTC 
    use Regexp::Common qw /URI/;

    while (<>) {
        /$RE{URI}{HTTP}/  
             and  print "Contains an HTTP URI.\n";
    }

    [download]
[reply]
[d/l]
      You can also use
      $regexp = qr($RE{URI}{HTTP}{-scheme=>qr/https?/}{-keep});

      [download]
[reply]
[d/l]
Re: perl module to determine if a URL is valid?
by Anonymous Monk on Sep 20, 2009 at 19:37 UTC
[reply]

Back to Seekers of Perl Wisdom