Regexp::Common::URI::tel -- Returns a pattern for telephone URIs. use Regexp::Common qw /URI/; while (<>) { /$RE{URI}{tel}/ and print "Contains a telephone URI.\n"; }

$RE{URI}{tel}
Returns a pattern that matches tel URIs, as defined by RFC 2806. Under "{-keep}", the following are returned: The complete URI. The scheme. The phone number, including any possible add-ons like ISDN subaddress, a post dial part, area specifier, service provider, etc.

$RE{URI}{tel}{nofuture}
As above (including what's returned by "{-keep}"), with the exception that future extensions are not allowed. Without allowing those future extensions, it becomes much easier to check a URI if the correct syntax for post dial, service provider, phone context, etc has been used - otherwise the regex could always classify them as a future extension. Mockapetris, P.: DOMAIN NAMES - IMPLEMENTATION AND SPECIFICATION. November 1987. Berners-Lee, Tim, Fielding, R., and Masinter, L.: Uniform Resource Identifiers (URI): Generic Syntax. August 1998. Vaha-Sipila, A.: URLs for Telephone Calls. April 2000. $Log: tel.pm,v $ Revision 2.100 2003/02/10 21:06:42 abigail tel URI Regexp::Common::URI for other supported URIs. Damian Conway (damian@conway.org) This package is maintained by Abigail (regexp-common@abigail.nl). Bound to be plenty. Copyright (c) 2001 - 2003, Damian Conway. All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the terms of the Perl Artistic License (see http://www.perl.com/perl/misc/Artistic.html)