[](https://travis-ci.org/titsuki/raku-Algorithm-AhoCorasick)
NAME
====
Algorithm::AhoCorasick - A Raku Aho-Corasick dictionary matching algorithm implementation
SYNOPSIS
========
use Algorithm::AhoCorasick;
my Algorithm::AhoCorasick $aho-corasick .= new(keywords => ['corasick','sick','algorithm','happy']);
my $matched = $aho-corasick.match('aho-corasick was invented in 1975'); # set("corasick","sick")
my $located = $aho-corasick.locate('aho-corasick was invented in 1975'); # {"corasick" => [4], "sick" => [8]}
DESCRIPTION
===========
Algorithm::AhoCorasick is a implmentation of the Aho-Corasick algorithm (1975). It constructs the finite state machine from a list of keywords offline. By the finite state machine, it can find the keywords within an input text online.
CONSTRUCTOR
-----------
### new
my Algorithm::AhoCorasick $aho-corasick .= new(keywords => @keyword-list);
Constructs a new finite state machine from a list of keywords.
METHODS
-------
### match
my $matched = $aho-corasick.match($text);
Returns elements of a finite set of strings within an input text.
### locate
my $located = $aho-corasick.locate($text);
Returns elements of a finite set of strings within an input text where each string contains the locations in which it appeared.
AUTHOR
======
titsuki <titsuki@cpan.org>
COPYRIGHT AND LICENSE
=====================
Copyright 2016 titsuki
This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.
The algorithm is from Alfred V. Aho and Margaret J. Corasick, Efficient string matching: an aid to bibliographic search, CACM, 18(6):333-340, June 1975.