The GNU versions of lex and yacc are flex and bison and, as with all things GNU, have excellent documentation including complete user manuals in a variety of formats.

lex和yacc的GNU版本是flex和bison，与所有的GNU软件一样，它们也都有非常好的文档，包括各种格式的完全用户手册。

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On a Windows server, begin by installing Cygwin, then install the GCC, flex, and bison tools to compile and install the code.

在一个Windows服务器上，先安装Cygwin，然后安装gcc、flex和bison工具来编译并安装代码。

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Bison is used to generate parsers; Flex is used to generate lexical analyzers.

Bison用来生成语法分析器；Flex用来生成词汇分析器。

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