diff options
Diffstat (limited to 'bin/ldiff')
| -rw-r--r-- | bin/ldiff | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/bin/ldiff b/bin/ldiff new file mode 100644 index 0000000..ae2b245 --- /dev/null +++ b/bin/ldiff @@ -0,0 +1,45 @@ +#!/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) |