编译原理的词法分析器

我做的不好呀，请大家指教。- I do am not good, asks everybody to advise.

通过设计编制调试一个具体的词法分析程序，加深对词法分析原理的理解。并掌握在对程序设计语言源程序进行扫描过程中将其分解为各类单词的词法分析方法。- And the hands of the right programming language source for the scanning process of decomposition of various word lexical analysis methods.

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编译原理 实现多个表达式的识别和判断出错-Compilation Principle of multiple expressions of recognition and assessment of error

C programm for Poissionous probability distribtion

这是pascal的词法分析程序- This is the pascal lexical analyaer

清华教材后面的pl0程序，这个是用c++写的 附带说明和设计文档- Behind the Qinghua teaching material pl0 procedure, this is the supplementary which writes with c explained and designs the documents

为了实现的编译程序实用，源程序可采用自由书写格式，即一行内可以书写多个语句，一个语句也可以占领多行书写；标识符的前20个字符有效；整数用2个字节表示；长整数用4个字节表示。这样词法分析程序的主要工作为： （1）从源程序文件中读入字符。 （2）统计行数和列数用于错误单词的定位。 （3）删除空格类字符，包括回车、制表符空格。 （4）按拼写单词，并用（种别，单词）二元式表示。 （5）根据需要是否填写标识符表供以后各阶段使用。 这里采用的编译程序的实现方法是一遍扫描，即从左到右只扫描一次源程序，也就是词法分析作为语法分析的一个子程序。故在编写词法分析程序时，用重复调用词法分析子程序取一单词的方法得到整个源程序的二元式流。 -in order to achieve the compiler practical, available free to write source code format, that his writing can be more than words, a statement can occupy multiple lines written; identifier of 20 characters effective; Integer with two byte; long integer with four byte. This lexical analysis for major work : (1) from source document read into the characters. (2) Statistics and a few mistakes out a few words for positioning. (3) delete the blank type characters, including the carriage return, tab spaces. (4) the spelling words and use (other species, words) dual ceremony. (5) whether the need for completing the table identifier subsequent stages. Here the compilers of th

词法分析器生成工具，用Turbo C v2.0编译生成的-lexical analyzer generation tool, Turbo C compiler generated v2.0

c语言标准库函数速查手册电子版-c language standard storehouse function speed-searches the handbook electron version