The syntax analyzer has one recursive procedure for each nonterminal u . 对于每个非终结符号U,语法分析程序都有一个递归过程。
Non - terminal also uses the 非终结符还使用了union的
Is a non - terminal , which is created only by assembling it from terminals 是一个非终结符,它是通过装配终结符而创建出来的。
The syntax analyzer has one recursive procedure for each nonterminal u 对于每个非终结符号u ,语法分析程序都有一个递归过程。
When a non - terminal is being parsed , the components that went into it are named 当解析非终结符时,进入解析器的组成部分被命名为
Of course , this doesn t solve one last problem : the starting non - terminal expression has nowhere to return to , so you will need to do something with the values it produces 当然,这不能解决一个最终问题:最前面的非终结符表达式没有任何地方可以返回,所以您应该处理它生成的值。