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#!/usr/bin/env ruby
#--
# Copyright 2004 Austin Ziegler <diff-lcs@halostatue.ca>
# adapted from:
# Algorithm::Diff (Perl) by Ned Konz <perl@bike-nomad.com>
# Smalltalk by Mario I. Wolczko <mario@wolczko.com>
# implements McIlroy-Hunt diff algorithm
#
# This program is free software. It may be redistributed and/or modified under
# the terms of the GPL version 2 (or later), the Perl Artistic licence, or the
# Ruby licence.
#
# $Id$
#++
# 1) Try to load Ruwiki from the gem.
# 2) Try to load Ruwiki from $LOAD_PATH.
# 3) Modify $LOAD_PATH and try to load it from the modified $LOAD_PATH.
# 4) Fail hard.
load_state = 1
begin
if 1 == load_state
require 'rubygems'
require_gem 'diff-lcs', '= 1.1.1'
else
require 'diff/lcs'
end
rescue LoadError
load_state += 1
case load_state
when 3
$LOAD_PATH.unshift "#{File.dirname($0)}/../lib"
when 4
$LOAD_PATH.shift
$LOAD_PATH.unshift "#{File.dirname(__FILE__)}/../lib"
when 5
raise
end
retry
end
require 'diff/lcs/ldiff'
exit Diff::LCS::Ldiff.run(ARGV)
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