The whole grammar system for a tested language accorded to the criterion of yacc was build, and the system was logically divided into two main parts: class grammar and function grammar.

• 该方法首先构建测试语言符合yacc规范的完整文法体系，并将整个文法体系逻辑上划分为类文法和函数文法两大主要部分来处理。