code: function(name,loc) {
  		// slow
  		if(loc === undefined) loc = 0;
  		while (name[0] == ' '){
  			loc++;
  			name = name.substr(1);
  		};
  		name = name.trim();
  		return new Identifier(new Token('IDENTIFIER',name,loc,name.length));
  	}
docs: /\s*,\s