/ 
Algorithm-UrataniTakeda-v0.1.2
/ README.md

NAME

Algorithm::UrataniTakeda - an implementation of the Uratani-Takeda string searching algorithm

STATUS

This is an experimental implementation. It may not be correct.

SYNOPSIS

my $m = Algorithm::UrataniTakeda->new( patterns => \@patterns );

my $match = $m->first($text);

my @all = $m->matches($text);

sub callback( $pos, $phrase ) {
    ...
    return 1;
}

while (<STDIN>) {
    $m->search( $_, \&callback );
}

DESCRIPTION

This is an implementation of the Uratani-Takeda algorithm for searching for multiple strings.

It combines the Aho-Corasick algorithm with the Boyer-Moore algorithm, and is similar to the Commentz-Walter algorithm.

RECENT CHANGES

Changes for version v0.1.2 (2026-08-28)

See the Changes file for more details.

REQUIREMENTS

This module lists the following modules as runtime dependencies:

See the cpanfile file for the full list of prerequisites.

INSTALLATION

The latest version of this module (along with any dependencies) can be installed from CPAN with the cpan tool that is included with Perl:

cpan Algorithm::UrataniTakeda

You can also extract the distribution archive and install this module (along with any dependencies):

cpan .

You can also install this module manually using the following commands:

perl Makefile.PL
make
make test
make install

If you are working with the source repository, then it may not have a Makefile.PL file. But you can use the Dist::Zilla tool in anger to build and install this module:

dzil build
dzil test
dzil install --install-command="cpan ."

For more information, see How to install CPAN modules.

SUPPORT

Only the latest release of this module will be supported.

This module requires Perl v5.26 or later.

Reporting Bugs and Submitting Feature Requests

Please report any bugs or feature requests on the bugtracker website https://github.com/robrwo/perl-Algorithm-UrataniTakeda/issues

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

If the bug you are reporting has security implications which make it inappropriate to send to a public issue tracker, then see SECURITY.md for instructions how to report security vulnerabilities.

SOURCE

The development version is on github at https://github.com/robrwo/perl-Algorithm-UrataniTakeda and may be cloned from https://github.com/robrwo/perl-Algorithm-UrataniTakeda.git

AUTHOR

Robert Rothenberg perl@rhizomnic.com

COPYRIGHT AND LICENSE

This software is Copyright (c) 2026 by Robert Rothenberg.

This is free software, licensed under:

The Artistic License 2.0 (GPL Compatible)

SEE ALSO

This implementation was based on Uratani N. and Takeda M., "A Fast String-Searching Algorithm for Multiple Patterns", Information, Processing & Management 29 (6), pp. 775-791, 1993. doi:10.1016/0306-4573(93)90106-N.