require 'maasha/patternmatcher'
require 'maasha/bits'
require 'maasha/backtrack'
+require 'maasha/digest'
#require 'maasha/patscan'
# Residue alphabets
#include Patscan
include PatternMatcher
include BackTrack
+ include Digest
attr_accessor :seq_name, :seq, :type, :qual