= divsufsort

Copyright (c) 2008 SUGAWARA Genki <[email protected]>

== Description

Ruby bindings for libdivsufsort.

libdivsufsort is a C API library to construct the suffix array and the Burrows-Wheeler transformed string.

== Project Page

http://rubyforge.org/projects/divsufsort

== Install

gem install divsufsort

== Example
=== Burrows-Wheeler Transform/Inverse Burrows-Wheeler Transform

require 'divsufsort'
include Divsufsort

bwt = divbwt(<<-EOS)
London bridge is falling down,
Falling down, falling down,
London bridge is falling down,
My fair Lady.
EOS

unbwt = inverse_bw_transform(bwt)

=== Construct the suffix array

require 'divsufsort'
include Divsufsort

sa = divsufsort(<<-EOS)
London bridge is falling down,
Falling down, falling down,
London bridge is falling down,
My fair Lady.
EOS

== License
Copyright (c) 2008 SUGAWARA Genki <[email protected]>
All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* The names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.

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.

=== libdivsufsort
divsufsort contains libdivsufsort.

* libdivsufsort is a lightweight suffix-sorting library.
* http://code.google.com/p/libdivsufsort/