# Regexp::Common::SEN - perldoc - [phpMan]

## NAME
    [Regexp::Common::SEN](https://www.chedong.com/phpMan.php/perldoc/Regexp%3A%3ACommon%3A%3ASEN/markdown) -- provide regexes for Social-Economical Numbers.

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

     while (<>) {
         /^$RE{SEN}{USA}{SSN}$/    and  print "Social Security Number\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{SEN}{USA}{SSN}{-sep}"
    Returns a pattern that matches an American Social Security Number (SSN). SSNs consist of three
    groups of numbers, separated by a hyphen ("-"). This pattern only checks for a valid structure,
    that is, it validates whether a number is valid SSN, was a valid SSN, or maybe a valid SSN in
    the future. There are almost a billion possible SSNs, and about 400 million are in use, or have
    been in use.

    If "-sep=*P*" is specified, the pattern *P* is used as the separator between the groups of
    numbers.

    Under "-keep" (see [Regexp::Common](https://www.chedong.com/phpMan.php/perldoc/Regexp%3A%3ACommon/markdown)):

    $1  captures the entire SSN.

    $2  captures the first group of digits (the area number).

    $3  captures the second group of digits (the group number).

    $4  captures the third group of digits (the serial number).

## 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.

## AUTHORS
    Damian Conway and Abigail.

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

## BUGS AND IRRITATIONS
    Bound to be plenty.

    For a start, there are many common regexes 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.