# Regexp::Common::URI::tel - phpMan

## NAME
    [Regexp::Common::URI::tel] -- Returns a pattern for telephone URIs.

## SYNOPSIS
        use [Regexp::Common] qw /URI/;

        while (<>) {
            /$RE{URI}{tel}/       and  print "Contains a telephone URI.\n";
        }

## DESCRIPTION
  $RE{URI}{tel}
    Returns a pattern that matches *tel* URIs, as defined by RFC 2806. Under
    "{-keep}", the following are returned:

    $1  The complete URI.

    $2  The scheme.

    $3  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*.

## REFERENCES
    [RFC 1035]
        Mockapetris, P.: *DOMAIN NAMES - IMPLEMENTATION AND SPECIFICATION*.
        November 1987.

    [RFC 2396]
        Berners-Lee, Tim, Fielding, R., and Masinter, L.: *Uniform Resource
        Identifiers (URI): Generic Syntax*. August 1998.

    [RFC 2806]
        Vaha-Sipila, A.: *URLs for Telephone Calls*. April 2000.

## SEE ALSO
    [Regexp::Common::URI] for other supported URIs.

## AUTHOR
    Damian Conway (<damian@conway.org>)

## MAINTENANCE
    This package is maintained by Abigail (*<regexp-common@abigail.be>*).

## BUGS AND IRRITATIONS
    Bound to be plenty.

LICENSE and COPYRIGHT
    This software is Copyright (c) 2001 - 2017, Damian Conway and Abigail.

    This module is free software, and maybe used under any of the following
    licenses:

     1) The Perl Artistic License.     See the file COPYRIGHT.AL.
     2) The Perl Artistic License 2.0. See the file COPYRIGHT.AL2.
     3) The BSD License.               See the file COPYRIGHT.BSD.
     4) The MIT License.               See the file COPYRIGHT.MIT.