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L<Algorithm::Diff>, the classic reference implementation for finding the
differences between two chunks of text in Perl. It is based on the algorithm
described in I<A Fast Algorithm for Computing Longest Common Subsequences>,
CACM, vol.20, no.5, pp.350-353, May 1977.

L<Algorithm::Diff::XS>, the C/XS optimized version of Algorithm::Diff, which
will be used automatically if available.

=head1 CAVEATS

=head2 KNOWN BUGS

There are no known bugs as of this release.

=head2 LIMITATIONS

=over

=item *

It is not currently known whether L<Algorithm::Diff> (Pure Perl version)
and L<Algorithm::Diff::XS> (C/XS implementation) produce the same output.
The algorithms may not be equivalent (source code-wise) so they may produce
different output under some as-yet-undiscovered conditions.

=item *

Any potential performance gains will be limited by those features implemented
by L<Algorithm::Diff::XS>. As of time of writing, this is limited to the
C<cdiff> subroutine.

=back

=head1 QUALITY ASSURANCE METRICS

=head2 TEST COVERAGE

  -------------------------- ------ ------ ------ ------ ------ ------
  File                        stmt   bran   cond   sub    pod   total
  -------------------------- ------ ------ ------ ------ ------ ------
  lib/Algorithm/Diff/Any.pm  100.0  100.0  100.0  100.0  100.0  100.0
  Total                      100.0  100.0  100.0  100.0  100.0  100.0

=head1 LICENSE

Copyright (C) 2009 by Jonathan Yu <jawnsy@cpan.org>

This package is distributed under the same terms as Perl itself. Please
see the F<LICENSE> file included in this distribution for full details of
these terms.

=head1 DISCLAIMER OF WARRANTY

This software is provided by the copyright holders and contributors
"AS IS" and ANY EXPRESS OR IMPLIED WARRANTIES, including, but not
limited to, the IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED.

In no event shall the copyright owner or contributors be liable for
any direct, indirect, incidental, special, exemplary or consequential
damages (including, but not limited to, procurement of substitute
goods or services; loss of use, data or profits; or business
interruption) however caused and on any theory of liability, whether
in contract, strict liability or tort (including negligence or
otherwise) arising in any way out of the use of this software, even if
advised of the possibility of such damage.

=cut

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