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用LL(1)法对布尔表达式的语法分析
用LL(1)法对布尔表达式的语法分析- (1) the law analyzes with LL to the Boolean expression grammar
- 2022-01-21 05:59:58下载
- 积分:1
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为了实现编译器的实用,可自由编写源代码…
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
- 2022-01-23 11:14:40下载
- 积分:1
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flex的使用方法
flex的使用方法-the use of flex
- 2023-08-03 07:45:03下载
- 积分:1
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利用MFC开发的OpenGL开发包,希望对大家有所帮助哈
利用MFC开发的OpenGL开发包,希望对大家有所帮助哈-MFC Development using OpenGL Development Kit, and they hope to help everyone Kazakhstan
- 2022-07-06 10:14:02下载
- 积分:1
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一个Delphi解释器的例子
一个Delphi解释器的例子-an explanation for example
- 2022-11-29 16:50:03下载
- 积分:1
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pl0语言编译器及从中分离的语法分析程序
pl0语言编译器及从中分离的语法分析程序-pl0 language compiler and separates grammar analysis program
- 2022-07-01 20:57:23下载
- 积分:1
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编译原理课程设计
编译原理课程设计-词法分析器-Course Design Compiler Principle- lexical analyzer
- 2023-03-18 04:25:03下载
- 积分:1
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编译原理课程设计,语法分析.学校的课程设计,好象还有点用吧...
编译原理课程设计,语法分析.学校的课程设计,好象还有点用吧-compiler theory curriculum design, syntax analysis. School curriculum design, as if it still has some use
- 2022-03-21 03:46:45下载
- 积分:1
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This procedure is used c# Write a compiler, the realization of the lexical, synt...
本程序是用c#写的一个编译器,实现了词法,语法,语义分析和中间代码生成,输出结果功能-This procedure is used c# Write a compiler, the realization of the lexical, syntax, semantic analysis and code generation between, the output function
- 2022-08-09 05:27:50下载
- 积分:1
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compiler theory word recognition
编译原理单词识别-compiler theory word recognition
- 2022-02-06 05:32:45下载
- 积分:1