New port: ruby-diff

This is a ruby library, implements Algorithm::Diff of Perl.  This library
is needed for aswiki, which will be commited later.

Reviewed by:	kuriyama, knu

textproc/Makefile

@@ -348,6 +348,7 @@
     SUBDIR += ruby-amatch
     SUBDIR += ruby-amrita
     SUBDIR += ruby-csv
+    SUBDIR += ruby-diff
     SUBDIR += ruby-format
     SUBDIR += ruby-formvalidator
     SUBDIR += ruby-gdome

textproc/ruby-diff/Makefile

@@ -0,0 +1,22 @@
+# New ports collection makefile for:	ruby-diff
+# Date created:		13 June 2003
+# Whom:			Makoto Matsushita <matusita@FreeBSD.org>
+#
+# $FreeBSD$
+#
+
+PORTNAME=		diff
+PORTVERSION=		0.4
+CATEGORIES=		textproc ruby
+MASTER_SITES=		http://www.rubynet.org/mirrors/diff/
+PKGNAMEPREFIX=		${RUBY_PKGNAMEPREFIX}
+DIST_SUBDIR=		ruby
+
+MAINTAINER=		matusita@FreeBSD.org
+COMMENT=		Ruby implementation of Perl's Algorithm::Diff
+
+USE_RUBY=		YES
+USE_RUBY_SETUP=		YES
+RUBY_SETUP=		install.rb
+
+.include <bsd.port.mk>

textproc/ruby-diff/distinfo

@@ -0,0 +1 @@
+MD5 (ruby/diff-0.4.tar.gz) = 3e832de40dc1866dddc64978fe67e4c8

textproc/ruby-diff/pkg-descr

@@ -0,0 +1,10 @@
+The diff algorithm computes the differences between two arrays of elements,
+like the unix program "diff". diff.rb is a Ruby conversion of the Perl's
+Algorithm::Diff. It can diff Arrays by each element or Strings by each
+character, or your own class if you implement the interface. The algorithm
+is complete, stable (TestUnit test available), but the interface may change
+before a 1.0 release.
+
+				-- excerpt from RAA (Ruby Application Archive)
+
+WWW: http://www.rubynet.org/mirrors/diff/

textproc/ruby-diff/pkg-plist

@@ -0,0 +1,2 @@
+%%RUBY_SITELIBDIR%%/algorithm/diff.rb
+@dirrm %%RUBY_SITELIBDIR%%/algorithm