Description: 名称：C语言词法分析器 功能：1）从C语言源代码文件中提取所有词素 2）检测程序的词法错误，给出错误行号及提示 3）语法分析器的预备程序 文件：分析器代码（Lex.c）、测试文件（test.c）、状态转换图、可执行程序 输出：错误记录文件、符号表文件、标识符文件-Name lexical analyzer for C language
function:
1)Extract all lexems from C Language source code
2)Examine the syntax errors of the program and provide the line number of error line and note
3)preprocessed program file of the lexical analyzer source code of the analyzer(Lex.c), test file(test.c),status transformation chart,excutable program. Output: Error-recording file, symbol table file and identifier file. Platform: |
Size: 192513 |
Author:张永胜 |
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Description: Lex是美国Bell实验室用C语言研制的一个词法分析程序自生成工具。它的基本原理就是使用正则表达式扫描匹配文本，并为每一个匹配模式定义一些操作，当用C语言作宿主语言时，这些操作都由C语言实现。一种匹配的正则表达式可能会包含相关的动作。这一动作可能还包括返回一个标记。当 Lex 接收到文件或文本形式的输入时，它试图将文本与正则表达式进行匹配。它一次读入一个输入字符，直到找到一个匹配的模式。如果能够找到一个匹配的模式，Lex 就执行相关的动作（可能包括返回一个标记）。-Lex Bell Laboratories of the United States with C language developed by a lexical analysis tool generated from the process. Its fundamental principle is to use a regular expression matching text scanning, and for every definition of a matching model for operation, when the C language of the host language, these operators by C language. A match of which is likely to contain expressions related to the moves. This action may also include the return of a marker. When Lex reception of the document or text input, it is trying to text and is a regular expression matching. It read an input into the characters, until they found a matching pattern. If they can find a matching model, Lex on the implementation of the action (which may include a return of markings). Platform: |
Size: 2994 |
Author:万宏兴 |
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Description: 利用LEX生成工具构造PASCAL词法分析器。输入一个字符串或是数，分析器将判别是否为PASCAL标准标识符、保留字、整数或实数，并同时把当前的输入再次打印出来。-use LEX generation tool is PASCAL lexical analyzer. The importation of a string or number analyzer to determine whether it will PASCAL standard identifier and reserved word, integer or real, and while the current importation of printed again. Platform: |
Size: 977 |
Author:刘斌 |
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Description: 利用LEX生成工具生成统计文本文件中字符、单词和行数，并报告统计结果。-LEX generated using statistical tools generated text file of characters, words and action, and a report on results. Platform: |
Size: 849 |
Author:刘斌 |
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Description: 本程序集是Allen I. Holub所写的《Compiler Design in C》一书的附随软件，其中有作者自己编写的词法分析和语法分析工具LeX，occs和LLama，该软件包还包括一个显示C语言分析过程的程序-This set of program is the attached software in 《Compiler Design in C》 writed by Allen I. Holub, it contains the Lex, occs and Llama which are phraseing analysis tools writed by Allen, it also contains a program which can display the analysis procedure of C Platform: |
Size: 1003520 |
Author:站长 |
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Description: 一. 实验目的： 设计、编写和调试一个具体的词法分析程序，加深对词法分析理论和自动词法分析工具的理解、实践和掌握。 二. 实验要求： ① 学习和理解正则表达式理论,写出C—语言的记号的完整的正则表达式;(适当使用正则定义) ② 学习和理解有限机理论,根据前面的正则表达式,用基于经验的方法画出C—语言的记的DFA图; ③ 用基于DFA图的算法编写C—语言的词法分析程序; ④ 学习词法分析程序的自动生成工具,使用LEX工具实现C—语言的词法分析程序.- 1. Experimental goal: The design, compiles and debugs a
concrete lexical analyaer, deepens to the lexical analysis theory and
the automatic lexical analysis tool understanding, practices and
grasps. 2. The experiment requests: (1) study and the understanding
regular expression theory, writes the C 鈻 Platform: |
Size: 147456 |
Author:晨曦 |
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