AST __t724 = _t; AST tmp286_AST_in = (AST)_t;
AST __t728 = _t; AST tmp285_AST_in = (AST)_t;
	public final void color_expr(AST _t) throws RecognitionException {				AST color_expr_AST_in = (_t == ASTNULL) ? null : (AST)_t;				if (_t==null) _t=ASTNULL;		switch ( _t.getType()) {		case BGCOLOR:		{			AST __t721 = _t;			AST tmp283_AST_in = (AST)_t;			match(_t,BGCOLOR);			_t = _t.getFirstChild();			expression(_t);			_t = _retTree;			_t = __t721;			_t = _t.getNextSibling();			break;		}		case DCOLOR:		{			AST __t722 = _t;			AST tmp284_AST_in = (AST)_t;			match(_t,DCOLOR);			_t = _t.getFirstChild();			expression(_t);			_t = _retTree;			_t = __t722;			_t = _t.getNextSibling();			break;		}		case FGCOLOR:		{			AST __t723 = _t;			AST tmp285_AST_in = (AST)_t;			match(_t,FGCOLOR);			_t = _t.getFirstChild();			expression(_t);			_t = _retTree;			_t = __t723;			_t = _t.getNextSibling();			break;		}		case PFCOLOR:		{			AST __t724 = _t;			AST tmp286_AST_in = (AST)_t;			match(_t,PFCOLOR);			_t = _t.getFirstChild();			expression(_t);			_t = _retTree;			_t = __t724;			_t = _t.getNextSibling();			break;		}		default:		{			throw new NoViableAltException(_t);		}		}		_retTree = _t;	}