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Description: 写了一个词法分析器
这里以开始定义的PASCAL语言子集的源程序作为词法分析程序的输入数据。在词法分析中，自文件头开始扫描源程序字符，一旦发现符合“单词”定义的源程序字符串时，将它翻译成固定长度的单词内部表示，并查填适当的信息表。经过词法分析后，源程序字符串（源程序的外部表示）被翻译成具有等长信息的单词串（源程序的内部表示），并产生两个表格：常数表和标识符表，它们分别包含了源程序中的所有常数和所有标识符。-was a lexical analyzer here to start the definition of PASCAL language subset of the source points as lexical Analysis of the data entry process. The lexical analysis, the first since the paper began scanning source characters, Once found with "words" definition of the source string, it will be translated into fixed length of the internal word, check and fill the appropriate form. After lexical analysis, source string (source said external) has been translated into information such as a long string of words (source said the internal) , and produce two forms : Constant table and table identifier, namely contains the source of all the constants and all identifiers.
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Size: 60231 |
Author: 陈剑峰 |
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Description: 针对C++的简单词法分析器,局限性较大,算法简单,易懂,导入词法文件,输出分析结果-against C simple lexical analyzer and limitations larger, the algorithm is simple, understandable, import documents morphology, Output analysis
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Size: 363071 |
Author: Norman |
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Description: 词法分析器制作与应用
设计思想
(1)程序主体结构部分：
说明部分
％％
规则部分
％％
辅助程序部分
（2）主体结构的说明
在这里说明部分告诉我们使用的LETTER,DIGIT, IDENT(标识符,通常定义为字母开头的字母数字串)和STR(字符串常量,通常定义为双引号括起来的一串字符)是什么意思.这部分也可以包含一些初始化代码.例如用#include来使用标准的头文件和前向说明(forward ，references).这些代码应该再标记\"％{\"和\"％}\"之间 规则部分> 可以包括任何你想用来分析的代码 我们这里包括了忽略所有注释中字符的功能,传送ID名称和字符串常量内容到主调函数和main函数的功能.
（3）实现原理
程序中先判断这个句语句中每个单元为关键字、常数、运算符、界符，对与不同的单词符号给出不同编码形式的编码，用以区分之。
PL/0语言的EBNF表示
<常量定义>：：=<标识符>=<无符号整数>
<标识符>：：=<字母>={<字母>|<数字>}
<加法运算符>::=+|-
<乘法运算符>::=*|/
<关系运算符>::==|#|<|<=|>|>=
<字母>::=a|b|…|X|Y|Z
<数字>::=0|1|2|…|8|9-lexical analyzer production and application design (1) procedure main structural elements : narrative%%%% Rules of Procedure supporting part (2) the main structure of the narrative here to tell us so The LETTER, DIGIT, IDENT (identifier, usually defined as the beginning of the alphabet alphanumeric strings) and STR (string constants, usually defined as double quotes name of the string of characters) what it meant. This part also contains some initialization code. cases # include use as to the use of standard documents and the first to the (forward, references). these codes should labeled "% (" and ")%" between some of the rules
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Size: 4846 |
Author: 黄启龙 |
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Description: 词法分析器实现简单的词法分析词法分析 器实现简单的词法分析
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Size: 6946 |
Author: 薛晓菊 |
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Description: 从源程序文件中读取有效字符和并将其转换成二元组机内表示形式输出。
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Size: 15936 |
Author: 异元 |
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Description: 用C语言写编译原理词法分析器,实现简单.
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Size: 8010 |
Author: wang |
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Description: 刚学了编译原理，作了一个词法分析器，花了很长时间，大家给看看啊！-just learning the compiler theory, made a lexical analyzer, for a very long time, we look to ah!
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Size: 2048 |
Author: 王冠军 |
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Description: 写了一个词法分析器
这里以开始定义的PASCAL语言子集的源程序作为词法分析程序的输入数据。在词法分析中，自文件头开始扫描源程序字符，一旦发现符合“单词”定义的源程序字符串时，将它翻译成固定长度的单词内部表示，并查填适当的信息表。经过词法分析后，源程序字符串（源程序的外部表示）被翻译成具有等长信息的单词串（源程序的内部表示），并产生两个表格：常数表和标识符表，它们分别包含了源程序中的所有常数和所有标识符。-was a lexical analyzer here to start the definition of PASCAL language subset of the source points as lexical Analysis of the data entry process. The lexical analysis, the first since the paper began scanning source characters, Once found with "words" definition of the source string, it will be translated into fixed length of the internal word, check and fill the appropriate form. After lexical analysis, source string (source said external) has been translated into information such as a long string of words (source said the internal) , and produce two forms : Constant table and table identifier, namely contains the source of all the constants and all identifiers.
Platform: |
Size: 226304 |
Author: 陈剑峰 |
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Description: 针对C++的简单词法分析器,局限性较大,算法简单,易懂,导入词法文件,输出分析结果-against C simple lexical analyzer and limitations larger, the algorithm is simple, understandable, import documents morphology, Output analysis
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Size: 362496 |
Author: Norman |
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Description: 用C++编写的编译原理词法分析器读磁盘文件进行词法分析，还可以保存结果到指定的文件夹-With C++ Prepared Compilation Principle lexical analyzer disk read documents lexical analysis, but also can save results to a specific folder
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Size: 361472 |
Author: 朱宇杰 |
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Description:
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Size: 3072 |
Author: Susan |
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Description: 本软件是实现一个词法分析器，对一个已经存在的C++源文件进行分析打印出所有记号（如关键字、标识符、算术符号等等）。通过分析，我们可以得到所有的C++记号。-This software is the realization of a lexical analyzer, one that already exists on the C++ Source document analysis print out all the marks (such as keywords, identifiers, arithmetic symbols, etc.). Through analysis, we can get all of the C++ Mark.
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Size: 285696 |
Author: qiumingzhou |
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Description: C语言编写的词法分析器，能够对简单的语句进行编译。希望能够给大家分享-C language lexical analyzer to be able to compile a simple statement. I hope to be able to share the U.S.
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Size: 2048 |
Author: 张明哲 |
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Description: 编译原理下的作业词法分析器 它是用C++语言写的-cifafenxiqi
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Size: 2048 |
Author: cky |
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Description: 编译原理 词法分析器 比较基础 输入简单的表达式 输出二元式-cifafenxiqi
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Size: 2048 |
Author: 李娥娥 |
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Description: 编译原理实验，语法分析器，用VC++做的，已通过调试，可以借鉴，参考-Compiler Construction Principles experiment, parser, using VC++ to do, has passed the debugging, you can learn from, reference
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Size: 1084416 |
Author: 唐晓晓 |
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Description: 编译原理实验的词法分析器实验源程序及运行程序。
（含测试文件）-bianyiyuanlishiyan cifafenxiqi
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Size: 94208 |
Author: zhong |
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Description: 编译原理此法分析器。能过滤标识符 ，关键字，运算符，等-cifafenxiqi
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Size: 2048 |
Author: 杨瑾 |
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Description: 词法分析器 用c++语言描述，希望对大家有用-cifafenxiqi
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Size: 2048 |
Author: nicolapple |
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Description: 关于词法分析器自己写的一个程序，可能有些不完善的地方，需要配合固定的文法！-about cifafenxiqi code
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Size: 4096 |
Author: zhushixiang |
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