# phpman > info > Regexp::Common::lingua

[Regexp::Common::linguaUser](https://www.chedong.com/phpMan.php/perldoc/Regexp%3A%3ACommon%3A%3AlinguaUser/markdown))Contributed Perl [DocumenRegexp::Common](https://www.chedong.com/phpMan.php/perldoc/DocumenRegexp%3A%3ACommon/markdown)::[lingua(3pm)](https://www.chedong.com/phpMan.php/man/lingua/3pm/markdown)

NAME
       [Regexp::Common::lingua](https://www.chedong.com/phpMan.php/perldoc/Regexp%3A%3ACommon%3A%3Alingua/markdown) -- provide regexes for language related stuff.

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

           while (<>) {
               /^$RE{lingua}{palindrome}$/    and  print "is a palindrome\n";
           }

DESCRIPTION
       Please consult the manual of [Regexp::Common](https://www.chedong.com/phpMan.php/perldoc/Regexp%3A%3ACommon/markdown) for a general description
       of the works of this interface.

       Do not use this module directly, but load it via [Regexp::Common](https://www.chedong.com/phpMan.php/perldoc/Regexp%3A%3ACommon/markdown).

   $RE{lingua}{palindrome}
       Returns a pattern that recognizes a palindrome, a string that is the
       same if you reverse it. By default, it only matches strings consisting
       of letters, but this can be changed using the "{-chars}" option.  This
       option takes a character class (default is "[A-Za-z]") as argument.

       If "{-keep}" is used, only $1 will be set, and set to the entire match.

       This pattern requires at least perl 5.6.0.

SEE ALSO
       [Regexp::Common](https://www.chedong.com/phpMan.php/perldoc/Regexp%3A%3ACommon/markdown) for a general description of how to use this interface.

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

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

BUGS AND IRRITATIONS
       Many regexes are missing.  Send them in to <regexp-common@abigail.be>.

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.

perl v5.24.1                      2017-06-17       [Regexp::Common](https://www.chedong.com/phpMan.php/perldoc/Regexp%3A%3ACommon/markdown)::[lingua(3pm)](https://www.chedong.com/phpMan.php/man/lingua/3pm/markdown)