List-Member version 0.42
========================

NAME
   List::Member - PROLOG's member/2: return index of $x in @y.

SYNOPSIS
     use List::Member;
     my $target = 'bar';
     my @look_in = ('foo','baz','bar','etc', 0);
     warn "It is a member of the list" if member('bar',@look_in) +1;
     warn "It is a member of the list" if member('bar',@look_in) >= 0;
     warn "It is a member of the list" if member('ar$',@look_in) >= 0;
     warn "Zero is a member of the list" if member('0',@look_in) >= 0;
     warn "It is not a member of list" if member('tikkumolam',@look_in) eq nota_member();

DESCRIPTION
   A tiny routine to achieve the same effect as PROLOG's "member/2".

   Returns the index of supplied scalar in supplied array, or returns the
   value of the package's $NEG scalar. This can be over-ridden for the case
   when the target is the same as the default -1:

           $List::Member::NEG = 'not_a_member';

   In the above case, the first two example calls in the POD would need to
   be updated.

EXPORT
           member

THANKS
   Thanks to Benoit Thillaye du Boulay in France, John Day and Michael D
   Black in Florida for pointing out bugs in the documentation, and to
   the Limbic~Region for pointing out the snivelling nits grumbling about
   the lack of support for 0, without filing a bug report.

INSTALLATION

To install this module type the following:

  perl Makefile.PL
  make
  make test
  make install

DEPENDENCIES

       None

AUTHOR
   Lee Goddard <[email protected]>

LICENCE AND COPYRIGHT
   Copyright (C) 2000-2008 Lee Goddard. All Rights Reserved.

   This module is made available under the same terms as Perl.

SEE ALSO
   perl(1).

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