Whee! A chance to learn something new :) It's the first time I used "key generation functions" in Algorithm::Diff. 

#!/usr/bin/perl

# http://perlmonks.org/?node_id=1195036

use strict;
use warnings;
use Algorithm::Diff qw(traverse_sequences);

my @array1=('adam west', 'daric dalon','tom helic','todd nick',
  'riley remer');
my @array2=('adam west 12', 'daric dalon mr.','tom helic (fads)',
  'todd nick (456)','riley remer','john steve','dim madz 12');

# generate a hash for the key generation function

$_ = join '', map "$_\n", sort @array1, @array2;
my %keyhash;
$keyhash{$1} = $keyhash{$2} = $1 while /^(.*)\n(?=(\1.*)\n)/gm;

# match

traverse_sequences(
  \@array1,
  \@array2,
  {
  MATCH     => sub {print "  matched $array1[shift()] -- $array2[pop()
+]\n"},
  DISCARD_A => sub {print "unmatched $array1[shift()]\n"},
  DISCARD_B => sub {print "unmatched $array2[pop()]\n"},
  },
  sub { $keyhash{$_[0]} // $_[0] },
  );

[download]

This prints: 

  matched adam west -- adam west 12
  matched daric dalon -- daric dalon mr.
  matched tom helic -- tom helic (fads)
  matched todd nick -- todd nick (456)
  matched riley remer -- riley remer
unmatched john steve
unmatched dim madz 12

[download]

Is this what you were looking for?

In reply to Re: Matching arrays with different number of elements and element size by tybalt89
in thread Matching arrays with different number of elements and element size by Ksonar

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