Lex: a lexical analyzer generator.
Lex：一个词汇分析器生成器。
Flex, a lexical analyzer generator.
这是一个词汇分析器生成器。
For instance, a simple lexical analyzer might count the words in its input.
例如，一个简单的词汇分析器可能会为输入的单词进行计数。
It consists of a series of rules that lex translates into the lexical analyzer.
它由一系列规则构成，lex将这些规则翻译为词汇分析器。
Lex takes a specification file and builds a corresponding lexical analyzer, coded in c.
lex可以接受规范文件并构建一个相应的词汇分析器(用c编写的)。
An important part of the input process is carried out by the lexical analyzer.
输入过程的一个重要部分由词法分析器来进行。
Being a special compile tool, the source program of lex is simple. The compiled lexical analyzer constructed by lex has high efficiency.
作为一种专用的编译工具，LEX的源程序简单，编译后生成的词法分析程序效率高。
The former cases represent design errors; the latter cases can often be corrected by making the lexical analyzer more powerful, or by rewriting some of the grammar rules.
前者会产生设计错误，后者一般能通过加强词法分析器来修复，或者重写其中一些语法规则。
The lexical analyzer using the LR parsing table unifies the construction method of lexical analyzer and syntax analyzer, simplifies the design and construction of compiler.
使用LR分析表的词法分析器，统一了词法分析器和语法分析器的构造方法，简化了编译程序的设计和构造。
The script engine has some components, include symbol table, lexical analyzer, parser, semantic checker, intermediate code generator, optimizer, code generator, virtual machine.
一个脚本引擎通常包括的组件有：符号表、词法分析器、语法分析器、语义检查器、中间代码生成器、代码优化器、代码生成器、虚拟机。
The script engine has some components, include symbol table, lexical analyzer, parser, semantic checker, intermediate code generator, optimizer, code generator, virtual machine.
一个脚本引擎通常包括的组件有：符号表、词法分析器、语法分析器、语义检查器、中间代码生成器、代码优化器、代码生成器、虚拟机。
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