Const std:: string& string(): This routine returns a copy of the string with which the path was initialized, with formatting per the path grammar rules. conststd::string&string():此例程会返回用于初始化path的字符串的副本,其格式符合path语法规则。
Attributed string translation grammar 属性符号串翻译文法
LR experimental design analysis program LR report tectonic analysis procedure, and use it for syntax analysis, judgment is whether the string of symbols for the identification of sentence grammar; 构造LR分析程序,利用它进行语法分析,判断给出的符号串是否为该文法识别的句子;
Valid string is not a unit in grammar but is a unit in language communication and understanding. 本文定义的有效字符串(VSt)是一种语言理解单位,而不是单纯的语法单位。
The parser is the basis of the symbol table generated by verifying whether a word symbol string is a sentence of the language grammar or not; 语法分析器以词法分析器生成的符号表为基础,验证单词符号串序列是否是语言文法的一个句子;
It can verify whether an input grammar is the LR ( 1) grammar which can generate the LR ( 1) parsing table automatically. And it also can analyze any input string, then decide whether it's the input grammar's legal sentence. 若是,则自动生成给定文法的LR(1)分析表,并对任一输入串进行分析,判断其是否为给定文法的句子。