adding a ruby unpack'er

unpack.rb

@@ -0,0 +1,41 @@
+#!/usr/bin/env ruby
+
+$:.unshift(File.dirname(__FILE__))
+require 'huffman.rb'
+require 'thing.rb'
+
+def inflate(data)
+  Zlib::Inflate.inflate(data)
+end
+
+# there is not a difference for us, in these two
+def inflate2(data)
+  zlib = Zlib::Inflate.new(15)
+  buff = zlib.inflate(data)
+  zlib.finish
+  zlib.close
+  buff
+end
+
+def load_dictionary(data)
+  data.split("\x00")
+end
+
+if $0 == __FILE__
+  abort("usage: %s <bin_file> ..." % __FILE__) unless (ARGV.length > 0)
+
+  ARGV.each do |arg|
+    file = File.open(arg)
+
+    z_data = file.read()
+    data = inflate(z_data)
+    puts "data is:"
+    puts load_dictionary(data).map {|x| "\t#{x}" }
+
+    puts "dictionary stats:"
+    puts "\tcompressed size: %d" % z_data.bytesize()
+    puts "\tuncompressed size: %d" % data.bytesize()
+  end
+end
+ 
+