2015年9月8日

摘要： 4.4 Top-Down Parsing Top-down parsing can be viewed as the problem of constructing a parse tree for the input string, starting from the root and creating the nodes of the parse tree in preorder (dept... 阅读全文

摘要： 4.3 Writing a Grammar Grammars are capable of describing most, but not all, of the syntax of programming languages. For instance, the requirement that identifiers be declared before they are used, ca... 阅读全文

摘要： 4.2 Context-Free GrammarsGrammars were introduced in Section 2.2 to systematically describe the syntax of programming language constructs like express... 阅读全文

摘要： Chapter 4 Syntax AnalysisThis chapter is devoted to parsing methods that are typically used in compilers.We first present the basic concepts, then tec... 阅读全文