Tree<String> res = new CharParser(MetaGrammar.make()).parse(new FileInputStream(s[0])).expand1();
MetaGrammar.Meta.MetaGrammarFile mgf = m.new MetaGrammarFile(res);
MetaGrammar.BuildContext bc = new MetaGrammar.BuildContext(mgf);
Tree<String> res = new CharParser(MetaGrammar.make()).parse(new FileInputStream(s[0])).expand1();
MetaGrammar.Meta.MetaGrammarFile mgf = m.new MetaGrammarFile(res);
MetaGrammar.BuildContext bc = new MetaGrammar.BuildContext(mgf);