在Groovy表达式中使用文字运算符(如“and”，“或”)?

My current work project allows user-provided expressions to be evaluated in specific contexts, as a way for them to extend and influence the workflow. These expressions the usual logical ones f. To make it a bit palatable for non-programmers, I'd like to give them the option of using literal operators (e.g. and, or, not instead of &, |, !).My current work project allows user-provided ex