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1·Lex: a lexical analyzer generator.

Lex：一个词汇分析器生成器。

2·Flex, a lexical analyzer generator.

这是一个词汇分析器生成器。

3·The scanner is sometimes called a lexical analyzer.

扫描程序有时又把它称为词法分析程序。

4·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。

5·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。

6·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。

7·Perform lexical analysis program called lexical analyzer or scanner (scanner).

执行词法分析的程序称为词法分析程序或扫描程序(Scanner)。

8·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)。

9·Their relatively simple preparation of the lexical analyzer, and we need people to see.

自己编写的比较简单的词法分析器，需要的人可以看看。

10·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。