# phpman > perldoc > Regexp::Common::URI::wais

## NAME
    [Regexp::Common::URI::wais](https://www.chedong.com/phpMan.php/perldoc/Regexp%3A%3ACommon%3A%3AURI%3A%3Awais/markdown) -- Returns a pattern for WAIS URIs.

## SYNOPSIS
        use [Regexp::Common](https://www.chedong.com/phpMan.php/perldoc/Regexp%3A%3ACommon/markdown) qw /URI/;

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

## DESCRIPTION
  $RE{URI}{WAIS}
    Returns a pattern that matches *WAIS* URIs, as defined by RFC 1738. WAIS URIs have the form:

        "wais:" "//" host [ ":" port ] "/" database
                          [ ( "?" search ) | ( "/" wtype "/" wpath ) ]

    Under "{-keep}", the following are returned:

    $1  The complete URI.

    $2  The *scheme*.

    $3  The *hostname*.

    $4  The *port*, if given.

    $5  The *database*, followed by *search* or *wtype/wpath*, if given.

    $6  The *database*.

    $7  The part following the *database* if given, including the question mark or slash.

    $8  The *search* part, if given.

    $9  The *wtype*, if given.

    $10 The *wpath*, if given.

## REFERENCES
    [RFC 1738]
        Berners-Lee, Tim, Masinter, L., McCahill, M.: *Uniform Resource Locators (URL)*. December
        1994.

## SEE ALSO
    [Regexp::Common::URI](https://www.chedong.com/phpMan.php/perldoc/Regexp%3A%3ACommon%3A%3AURI/markdown) 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.