2.cpp

这功能实在太强大了

#include "prediction.h"
#include "func.h"



const char *Operator[]={
	"," , "?" , ":" ,
	"||" , "&&" , "|" , "^" , "&" , "!" , "<" , ">" , "~" ,
	"+" , "-" , "*" , "/" , "=" , "%" ,
	"[" , "]" , "(" , ")"
};

int isstatic(str)
{	
	const char *StrToken[]=
	{"auto","break","case","char","const","continue","default","do",
	"double","else","enum","extern","float","for","goto","if",
	"int","long","register","return","short","signed","sizeof","static",
	"struct","switch","typedef","union","unsigned","void","volatile","while"
	};
	int i;
	for(i=0;i<32;i++)
		if(strcmp(str,StrToken[i])==0)		return (i+1);
	return(0);
}


void SaveResult(char str[],char message[])
{
	
	if(fputs(str,fpw)!=0)			exit(0);
	if(fputc('<',fpw)==EOF)			exit(0);
	for(j=0;j<5;j++)
		if(fputc('-',fpw)==EOF)		exit(0);
	if(fputc('>',fpw)==EOF)			exit(0);
	if(fputs(message,fpw)!=0)		exit(0);
	if(fputc("\t",fpw)==EOF)		exit(0);

}

//////////////////////////////////////////////////////////////////////////////////

void GetMessage()
{
	char nowch;
	char str[100],message[20];
	int i,j;
	

	while(fgetc(fpr)!=EOF)
	{
		i=0;
		nowch=fgetc(fpr);
		str[i++]=nowch;
		switch(nowch)
		{	//跳过空格、换行等
			if(isspace(nowch)==1)		continue;

			//头文件符号#
			case '#' :	str[i++]='\0';
						strcpy(message,"#号");
						break;
			//字符串
			case '"' :	while((nowch=fgetc(fpr))!='"')						
							str[i++]=nowch;
						str[i++]='"';str[i++]='\0'	
						strcpy(message,"字符串");									
						break;
			//注释，/，/=
			case '/' :	nowch=fgetc(fpr);
						if(nowch=='*') 
						{	str[i++]='*';
							strcpy(message,"左解释符");
							printf("%s<----->%s\t",str,message);
							SaveResult(str，message);
							//继续分析至注释结束
							while(1)
							{
								nowch=fgetc(fpr);
								if((nowch=fgetc(fpr))=='*')
									if((nowch=fgetc(fpr))=='/')
										{
											strcpy(str,"*/");
											strcpy(message,"右解释符")；
											break;
										}
							}
						}
						else
						{	
							while(isspace(nowch)==1)	nowch=fgetc(fpr);
							if(nowch=='=')
							{	str[i++]=nowch;str[i++]='\0';
								strcpy(message,"组合运算符\=");
							}
							else
							{	
								str[i++]='\0';
								fseek(fpr,-sizeof(char),1);
								strcpy(message,"除法运算符");
							}
						}
						break;
			//*,*=
			case '*' :	nowch=fgetc(fpr);
						while(isspace(nowch)==1)	nowch=fgetc(fpr);
						if(nowch=='=')
						{	str[i++]=nowch;str[i++]='\0';
							strcpy(message,"组合运算符*=");
						}
						else
						{	
							str[i++]='\0';
							fseek(fpr,-sizeof(char),1);
							strcpy(message,"乘法运算符");
						}
						break;
			//+=，++，+			
			case '+' :	
			case '-' :
			case '<' :
			case '>' :
			case '=' :

					

		}
		//打印分析结果并保存
		printf("%s<----->%s\t",str,message);
		SaveResult(str，message);
	
		

	if((cch>='a'&&cch<='z')||(cch>='A'&&cch<='Z'))//字符是字母
	}


	
}


/*
							i=0;
							while(isspace(nowch)==1)
								nowch=fgetc(fpr);
							while(islower(nowch)||isupper(nowch))
							{
								str[i++]=nowch;
								nowch=fgetc(fpr);
							}
							str[i++]='\0';
							if(isstatic(str))	strcpy(message,"关键字");
							else				
							printf("%s<----->%s\t",str,message);
							SaveResult(str，message);
							//头文件名
							i=0;
							fseek(fpr,-sizeof(char),1);
							nowch=fgetc(fpr);
							while(isspace(nowch)==1)
								nowch=fgetc(fpr);
							if(nowch=='<')
							{
							}



  			case '^':

					cch=GetC();
					if(cch=='=')cout<<"29"<<"^=";
					else
					{
						Pushback(cch);cout<<"30"<<"^";
					};break;

			case '|':

				    cch=GetC();
					switch(cch)
					{
						case'|':cout<<"31"<<"||";break;
						case'=':cout<<"32"<<"|=";break;
						default:Pushback(cch);cout<<"33"<<"|";
					};break;
			case '(':cout<<"34"<<"(";break;
			case ')':cout<<"35"<<")";break;
			case '[':cout<<"36"<<"[";break;
            case ']':cout<<"37"<<"]";break;
            case '{':cout<<"38"<<"{";break;
			case '}':cout<<"39"<<"}";break;
			case '~':cout<<"40"<<"~";break;
			case '.':cout<<"41"<<".";break;
            case ';':cout<<"42"<<";";break;
            case ',':cout<<"43"<<",";break;
			//case '#':cout<<"#";break;
            case '?':



  		    case '+':
				{
					cch=GetC();
			        switch(cch)
					{
			            case '+':cout<<"1"<<"++";break;
				        case '=':cout<<"2"<<"+=";break;
				        default:Pushback(cch);cout<<"3"<<"+";break;
					}
				};break;
							  
			case '-':
				{
					cch=GetC();
				    switch(cch)
					{
					    case '-':cout<<"4"<<"--";break;
					    case '=':cout<<"5"<<"-=";break;
                        case '>':cout<<"6"<<"->";break;
					    default :Pushback(cch);
								 cout<<"7"<<"-";
								 break;
					}
				};break;
			case '*':
				{
					cch=GetC();
					if(cch=='=') cout<<"8"<<"*=";
					else 
					{
						Pushback(cch);
						cout<<"9(注释):"<<"*";
					}
				};break;
							 
			case '/':
				{
					cch=GetC();
				    if(cch=='=') cout<<"10"<<"/=";
					else
					{
						Pushback(cch);
						cout<<"11(字符是):"<<"/";
					}
				};break;
							 
			case '<':
				{
					cch=GetC();
					switch(cch)
					{
						case'=':cout<<"12"<<"<=";break;
						case'<':cch=GetC();
						  if(cch=='=')cout<<"13"<<"<<=";
						  else 
						  {
							  Pushback(cch);
						      cout<<"14"<<"<<";
						  };
						default:Pushback(cch);cout<<"15"<<"<";
								 
					}
				};break;
							 
			case '>':
				{
					cch=GetC();
				    switch(cch)
					{
						case'=':cout<<"16"<<">=";break;
						case'>':cch=GetC();
						  if(cch=='=')cout<<"17"<<">>=";
						  else 
						  {
							  Pushback(cch);
							  cout<<"18"<<">>";break;}
						default:Pushback(cch);cout<<"19"<<">";
					}
				};break;
////////////////////////////////////////////////////////////////////////
			case '=':
				{
					cch=GetC();
					if(cch=='=') cout<<"20"<<"==";
					else 
					{
						Pushback(cch);
						cout<<"21"<<"=";
					}
				};break;
			case '%':
				{
					cch=GetC();
					if(cch=='=') cout<<"22"<<"%=";
					else
					{
						Pushback(cch);
						cout<<"23"<<"%";
					}
				};break;
			case '!':
				{
					cch=GetC();
					if(cch=='=') cout<<"24"<<"!=";
					else 
					{
						Pushback(cch);
						cout<<"25"<<"!";
					}
				};break;
			case '&':
				{
					cch=GetC();
				    switch(cch)
					{
					    case '&':cout<<"26"<<"&&";break;
						case '=':cout<<"27"<<"&=";break;
						default:Pushback(cch);cout<<"28"<<"&";
					}
				};break;