public void dumpExpression(TabbedPrintWriter writer)
			throws java.io.IOException {
		if (!postfix)
			writer.print(getOperatorString());
		writer.startOp(writer.NO_PAREN, 2);
		subExpressions[0].dumpExpression(writer);
		writer.endOp();
		if (postfix)
			writer.print(getOperatorString());
	}