view release on metacpan or  search on metacpan

lib/Algorithm/DiffOld.pm  view on Meta::CPAN

=head1 NOTE

This has been provided as part of the Algorithm::Diff package by Ned Konz.
This particular module is B<ONLY> for people who B<HAVE> to have the old
interface, which uses a comparison function rather than a key generating
function.

Because each of the lines in one array have to be compared with each 
of the lines in the other array, this does M*N comparisons. This can
be very slow. I clocked it at taking 18 times as long as the stock
version of Algorithm::Diff for a 4000-line file. It will get worse
quadratically as array sizes increase.

=head1 SYNOPSIS

  use Algorithm::DiffOld qw(diff LCS traverse_sequences);

  @lcs    = LCS( \@seq1, \@seq2, $comparison_function );

  $lcsref = LCS( \@seq1, \@seq2, $comparison_function );