#include "define.h"
#include
#include
#include
#include
FILE *fp
/*//////////////////////////////////////////////////////////////////////////////
This is a pretreatment.
/////////////////////////////////////////////////////////////////////////////*/
void readIntoBuffer(char buffer[256])
{
char ch1
char temp
int i
for(i=0 i
输入一个正则表达式,可以使用: 小写字母或数字,表示终结符;*,闭包;+,并集;~,补集;E,空串;O,空集 然后程序将生成 相应的NFA,以及化简之后的DFA,最后再输入一个字符串,程序判断它是否满足该正则表达式-input is a regular expression, you can use : lowercase letters or numbers, said Fu end;* Closure; , And set; To complement the set; E, empty string; O, empty set procedures will then generate the corresponding NFA, and the simplification of the DFA after finally lose into a string, procedures judgment whether it is to meet the regular expression
语法分析器,对已给pascal语言文法,构造LL(1)分析表,编制语法分析程序,要求将错误信息输出到语法错误文件中,并输出分析句子的过程-Parser that have been to the pascal language grammar, structure LL (1) analysis table, the preparation of parsing procedure that requires the output to the error message syntax error file, and output analysis of the process of sentence
是一个不错的语法分析器,里面实现了语法分析的算法,并判断了一些优先级的控制和对栈的操作.-is a good parser, they achieved the syntax analysis algorithms, and a judgment of priority to the control and operation of the stack.