You are looking for something to check if one list is a subset of another one. List::Compare has functions that do that. You pass two lists to the constructor then you can call a method to find if the list on the right is a subset of the one on the left or vice versa. Take note that you use the backslash to pass a reference of the array. If you try to pass two lists to a function they get mixed up.

use warnings;
use strict;
use List::Compare;

my @allwords = qw( mary had a little lamb its fleece was white as snow
+ );
my @checkwords1 = qw( little lamb fleece everywhere );
my @checkwords2 = qw( little lamb fleece );

my $lc1 = List::Compare->new(\@allwords, \@checkwords1);
my $lc2 = List::Compare->new(\@allwords, \@checkwords2);

## See if the list on the Right, @checkwords, 
##    is a subset of the list on the left, @allwords.
print "Check 1: All words were ", $lc1->is_RsubsetL ? "" : "not ", "fo
+und.\n";
print "Check 2: All words were ", $lc2->is_RsubsetL ? "" : "not ", "fo
+und.\n";

__END__
Check 1: All words were not found.
Check 2: All words were found.

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In reply to Re: Check array for several matches by Lotus1
in thread Check array for several matches by Bman70

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