yacc

• This completes our discussion on lex and yacc
  我们对于lex和yacc的讨论到此为止。
• Programs using yacc, but not lex, are rarer
  使用yacc而不使用lex的程序比较罕见。
• yacc can look ahead one character, though . so
  但是，yacc可以预读一个字符，所以：
• The yacc compiler is invoked from the compile line as
  编译行如下调用yacc编译器：
• In fact, yacc s interpretation will be this one
  实际上，yacc的解释将会如下所示：
• Further, yacc is used to get a syntax analyzer
  语法分析利用yacc工具实现。
• Declarations to guide yacc in resolving conflicts
  声明来引导yacc解决冲突。
• yacc grammar rules take on the following general form
  yacc语法规则具有以下一般格式：
• Lex and yacc are tools for building programs
  lex和yacc是编译程序的工具。
• Imagine a yacc grammar something like this
  设想一个类似这样的yacc语法：