41   def self.define( *grammar_files )  argument
42     lib = new( *grammar_files )
48   def initialize( *grammar_files )  argument
49     grammar_files = [ grammar_files ].flatten!
50     options = Hash === grammar_files.last ? grammar_files.pop : {}
55     grammar_files.empty? or grammar_set( grammar_files )
64   def grammar_set( *grammar_files )  argument
65     grammar_files = [ grammar_files ].flatten!
67       Hash === grammar_files.last ? grammar_files.pop : {}
69     set = GrammarSet.new( grammar_files, options )
120   def initialize( grammar_files, options = {} )  argument
121     @load_path = grammar_files.map { | f | File.dirname( f ) }
130     @grammars = grammar_files.map do | file |