NAME

    Array::OneOf -- checks if an element is in an array

SYNOPSIS

     use Array::OneOf ':all';
     
     # this test will pass
     if (oneof 'a', 'a', 'b', 'c') {
        # do stuff
     }
     
     # this test will not pass
     if (oneof 'x', 'a', 'b', 'c') {
        # do stuff
     }

DESCRIPTION

    Array::OneOf provides one simple utility, the oneof function. Its use
    is simple: if the first param is equal to any of the remaining params
    (in a string comparison), it returns true. Otherwise it returns false.

    In this module, undef is considered the same as undef, and not the same
    as any defined value. This is different than how most Perl programmers
    usually expect comparisons to work, so caveat programmer.

ALTERNATIVES

    Array::OneOf is not a particularly efficient way to test if a value is
    in an array. If efficiency is an important goal you may want to look at
    List::MoreUtils or Syntax::Keyword::Junction. You may also want to
    investigate using grep and/or the smart match operator (~~). I use
    Array::OneOf because it compares values the way my projects need them
    compared, its simple syntax, and small footprint.

INSTALLATION

    Array::OneOf can be installed with the usual routine:

     perl Makefile.PL
     make
     make test
     make install

TERMS AND CONDITIONS

    Copyright (c) 2012-2013 by Miko O'Sullivan. All rights reserved. This
    program is free software; you can redistribute it and/or modify it
    under the same terms as Perl itself. This software comes with NO
    WARRANTY of any kind.

AUTHOR

    Miko O'Sullivan miko@idocs.com

HISTORY

    Version 1.00 November 22, 2012

      Initial release.

    Version 1.01 November 25, 2012

      Removed dependency on String::Util. Clarified in documentation the
      advantages and disadvantages of Array::OneOf, and suggested some
      alternative modules.

    Version 1.02 November 28, 2012

      Cleaned up test.pl so that it compiles on many of the testers'
      machines.

    Version 1.03 February 5, 2013

      Fixed problem with mismatched newlines.

    Version 1.04 April 25, 2014

      Fixed problem in CPAN package.