#*************************************************************************
#
#   $RCSfile: existence.pm,v $
#
#   $Revision: 1.2 $
#
#   last change: $Author: rt $ $Date: 2004-02-10 14:31:12 $
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#   The Contents of this file are made available subject to the terms of
#   either of the following licenses
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#          - GNU Lesser General Public License Version 2.1
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#   Sun Microsystems Inc., October, 2000
#
#   GNU Lesser General Public License Version 2.1
#   =============================================
#   Copyright 2000 by Sun Microsystems, Inc.
#   901 San Antonio Road, Palo Alto, CA 94303, USA
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#   This library is free software; you can redistribute it and/or
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#   Sun Industry Standards Source License Version 1.1
#   =================================================
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#*************************************************************************


package pre2par::existence;

#############################
# Test of existence
#############################

sub exists_in_array
{
    my ($searchstring, $arrayref) = @_;

    my $alreadyexists = 0;

    for ( my $i = 0; $i <= $#{$arrayref}; $i++ )
    {
        if ( ${$arrayref}[$i] eq $searchstring)
        {
            $alreadyexists = 1;
            last;
        }
    }

    return $alreadyexists;
}

sub exists_in_array_of_hashes
{
    my ($searchkey, $searchvalue, $arrayref) = @_;

    my $hashref;
    my $valueexists = 0;

    for ( my $i = 0; $i <= $#{$arrayref}; $i++ )
    {
        $hashref = ${$arrayref}[$i];

        if ( $hashref->{$searchkey} eq $searchvalue )
        {
            $valueexists = 1;
            last;
        }
    }

    return $valueexists;
}

1;