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📄 scan.cpp.bak

📁 完成一个简化的C语言编译程序
💻 BAK
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#include <lex.h>

#line 1 "E:\\MyVC\\compiler\\cscript1\\scan.l"

#include "globals.h"
#include "util.h" 
#include "scaner.h" 
#include "parse.h"
char tokenString[MAXTOKENLEN+1];

#line 12 "E:\\MyVC\\compiler\\cscript1\\scan.c"
/* repeated because of possible precompiled header */
#include <lex.h>

#include "scan.h"

#ifndef YYTEXT_SIZE
#define YYTEXT_SIZE 100
#endif
#ifndef YYUNPUT_SIZE
#define YYUNPUT_SIZE YYTEXT_SIZE
#endif

/* yytext */
static char YYNEAR yysatext[(YYTEXT_SIZE) + 1];		/* extra char for \0 */
char *YYNEAR YYDCDECL yystext = yysatext;
char *YYNEAR YYDCDECL yytext = yysatext;
int YYNEAR YYDCDECL yystext_size = (YYTEXT_SIZE);
int YYNEAR YYDCDECL yytext_size = (YYTEXT_SIZE);

/* yystatebuf */
#if (YYTEXT_SIZE) != 0
static int YYNEAR yysastatebuf[(YYTEXT_SIZE)];
int *YYNEAR YYDCDECL yysstatebuf = yysastatebuf;
int *YYNEAR YYDCDECL yystatebuf = yysastatebuf;
#else
int *YYNEAR YYDCDECL yysstatebuf = NULL;
int *YYNEAR YYDCDECL yystatebuf = NULL;
#endif

/* yyunputbuf */
#if (YYUNPUT_SIZE) != 0
static int YYNEAR yysaunputbuf[(YYUNPUT_SIZE)];
int *YYNEAR YYDCDECL yysunputbufptr = yysaunputbuf;
int *YYNEAR YYDCDECL yyunputbufptr = yysaunputbuf;
#else
int *YYNEAR YYDCDECL yysunputbufptr = NULL;
int *YYNEAR YYDCDECL yyunputbufptr = NULL;
#endif
int YYNEAR YYDCDECL yysunput_size = (YYUNPUT_SIZE);
int YYNEAR YYDCDECL yyunput_size = (YYUNPUT_SIZE);

/* backwards compatability with lex */
#ifdef input
#ifdef YYPROTOTYPE
int YYCDECL yyinput(void)
#else
int YYCDECL yyinput()
#endif
{
	return input();
}
#else
#define input yyinput
#endif

#ifdef output
#ifdef YYPROTOTYPE
void YYCDECL yyoutput(int ch)
#else
void YYCDECL yyoutput(ch)
int ch;
#endif
{
	output(ch);
}
#else
#define output yyoutput
#endif

#ifdef unput
#ifdef YYPROTOTYPE
void YYCDECL yyunput(int ch)
#else
void YYCDECL yyunput(ch)
int ch;
#endif
{
	unput(ch);
}
#else
#define unput yyunput
#endif

#ifndef YYNBORLANDWARN
#ifdef __BORLANDC__
#pragma warn -rch		/* <warning: unreachable code> off */
#endif
#endif

#ifdef YYPROTOTYPE
int YYCDECL yylexaction(int action)
#else
int YYCDECL yylexaction(action)
int action;
#endif
{
	yyreturnflg = 1;
	switch (action) {
	case 1:
		{
#line 17 "E:\\MyVC\\compiler\\cscript1\\scan.l"
char c;
              int done=FALSE;
              do
              {
              while((c=input())!='*'); 
              while((c=input())=='*');
              if(c=='/') done=TRUE;
              }while(!done);
              
#line 123 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 2:
		{
#line 26 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return WHILE;
#line 130 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 3:
		{
#line 27 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return IF;
#line 137 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 4:
		{
#line 28 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return ELSE;
#line 144 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 5:
		{
#line 29 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return BREAK;
#line 151 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 6:
		{
#line 30 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return RETURN;
#line 158 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 7:
		{
#line 31 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return INT;
#line 165 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 8:
		{
#line 32 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return FLOAT;
#line 172 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 9:
		{
#line 33 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return CHAR;
#line 179 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 10:
		{
#line 34 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return EQ;
#line 186 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 11:
		{
#line 35 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return LE;
#line 193 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 12:
		{
#line 36 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return GE;
#line 200 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 13:
		{
#line 37 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return NE;
#line 207 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 14:
		{
#line 38 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return ASSIGN;
#line 214 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 15:
		{
#line 39 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return LT;
#line 221 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 16:
		{
#line 40 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return GT;
#line 228 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 17:
		{
#line 41 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return AND;
#line 235 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 18:
		{
#line 42 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return OR;
#line 242 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 19:
		{
#line 43 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return NOT;
#line 249 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 20:
		{
#line 44 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return PLUS;
#line 256 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 21:
		{
#line 45 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return MINUS;
#line 263 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 22:
		{
#line 46 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return TIMES;
#line 270 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 23:
		{
#line 47 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return OVER;
#line 277 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 24:
		{
#line 48 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return LPAREN;
#line 284 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 25:
		{
#line 49 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return RPAREN;
#line 291 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 26:
		{
#line 50 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return SEMI;
#line 298 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 27:
		{
#line 51 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return COMMA;
#line 305 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 28:
		{
#line 52 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return LBRACKET;
#line 312 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 29:
		{
#line 53 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return RBRACKET;
#line 319 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 30:
		{
#line 54 "E:\\MyVC\\compiler\\cscript1\\scan.l"
 return LBC;
#line 326 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 31:
		{
#line 55 "E:\\MyVC\\compiler\\cscript1\\scan.l"
 return RBC;
#line 333 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 32:
		{
#line 56 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return CONSTCHAR;
#line 340 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 33:
		{
#line 57 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return FLOATNUM;
#line 347 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 34:
		{
#line 58 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return NUM;
#line 354 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 35:
		{
#line 59 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return ID;
#line 361 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 36:
		{
#line 60 "E:\\MyVC\\compiler\\cscript1\\scan.l"
lineno++;
#line 368 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 37:
		{
#line 61 "E:\\MyVC\\compiler\\cscript1\\scan.l"
/*skip*/
#line 375 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	case 38:
		{
#line 62 "E:\\MyVC\\compiler\\cscript1\\scan.l"
return ERROR;
#line 382 "E:\\MyVC\\compiler\\cscript1\\scan.c"
		}
		break;
	default:
		yyassert(0);
		break;
	}
	yyreturnflg = 0;
	return 0;
}

#ifndef YYNBORLANDWARN
#ifdef __BORLANDC__
#pragma warn .rch		/* <warning: unreachable code> to the old state */
#endif
#endif
#line 64 "E:\\MyVC\\compiler\\cscript1\\scan.l"

TokenType getToken(void)
{
        static int firsttime=TRUE;
        TokenType currentToken;
        if(firsttime)
        {
        firsttime=FALSE;
        lineno++;
        yyin=source;
        yyout=listing;
        }
        currentToken=yylex();
        strncpy(tokenString,yytext,MAXTOKENLEN);
        if(TraceScan){
             fprintf(listing,"\t%d:",lineno);
             printToken(currentToken,tokenString);
        }
        return currentToken;

}

#line 421 "E:\\MyVC\\compiler\\cscript1\\scan.c"
YYCONST yymatch_t YYNEARFAR YYBASED_CODE YYDCDECL yymatch[] = {
	0
};

int YYNEAR YYDCDECL yytransitionmax = 321;
YYCONST yytransition_t YYNEARFAR YYBASED_CODE YYDCDECL yytransition[] = {
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 33, 1 },
	{ 32, 1 },
	{ 33, 33 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 33, 1 },
	{ 14, 1 },
	{ 33, 33 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 15, 1 },
	{ 28, 1 },
	{ 20, 1 },
	{ 21, 1 },
	{ 19, 1 },
	{ 17, 1 },
	{ 23, 1 },
	{ 18, 1 },
	{ 30, 1 },
	{ 3, 1 },
	{ 29, 1 },
	{ 29, 1 },
	{ 29, 1 },
	{ 29, 1 },
	{ 29, 1 },
	{ 29, 1 },
	{ 29, 1 },
	{ 29, 1 },
	{ 29, 1 },
	{ 29, 1 },
	{ 35, 3 },
	{ 22, 1 },
	{ 12, 1 },
	{ 11, 1 },
	{ 13, 1 },
	{ 44, 11 },
	{ 45, 12 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 24, 1 },
	{ 68, 61 },
	{ 25, 1 },
	{ 68, 61 },
	{ 31, 1 },
	{ 46, 13 },
	{ 31, 1 },
	{ 7, 1 },
	{ 10, 1 },
	{ 31, 1 },
	{ 6, 1 },
	{ 9, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 5, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 8, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 4, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 31, 1 },
	{ 26, 1 },
	{ 16, 1 },
	{ 27, 1 },
	{ 36, 4 },
	{ 37, 5 },
	{ 39, 6 },
	{ 40, 7 },
	{ 41, 8 },
	{ 42, 9 },
	{ 43, 10 },
	{ 31, 31 },
	{ 53, 36 },
	{ 38, 5 },
	{ 31, 37 },
	{ 54, 38 },
	{ 55, 39 },
	{ 56, 40 },
	{ 57, 41 },
	{ 58, 42 },
	{ 59, 43 },
	{ 62, 53 },
	{ 31, 54 },
	{ 63, 55 },
	{ 64, 56 },
	{ 65, 57 },
	{ 66, 58 },
	{ 67, 59 },
	{ 70, 62 },
	{ 31, 63 },
	{ 71, 64 },
	{ 72, 65 },
	{ 73, 66 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 74, 72 },
	{ 61, 52 },
	{ 49, 16 },
	{ 47, 14 },
	{ 60, 50 },
	{ 48, 15 },
	{ 0, 0 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 61, 52 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 31, 67 },
	{ 0, 0 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 31, 67 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 50, 28 },
	{ 51, 29 },
	{ 0, 0 },
	{ 29, 29 },
	{ 29, 29 },
	{ 29, 29 },
	{ 29, 29 },
	{ 29, 29 },
	{ 29, 29 },
	{ 29, 29 },
	{ 29, 29 },
	{ 29, 29 },
	{ 29, 29 },
	{ 52, 30 },
	{ 52, 30 },
	{ 52, 30 },
	{ 52, 30 },
	{ 52, 30 },
	{ 52, 30 },
	{ 52, 30 },
	{ 52, 30 },
	{ 52, 30 },
	{ 52, 30 },
	{ 69, 68 },
	{ 69, 68 },
	{ 69, 68 },
	{ 69, 68 },
	{ 69, 68 },
	{ 69, 68 },
	{ 69, 68 },
	{ 69, 68 },
	{ 69, 68 },
	{ 69, 68 }
};

YYCONST yystate_t YYNEARFAR YYBASED_CODE YYDCDECL yystate[] = {
	{ 0, 0, 0 },
	{ -34, 1, 0 },
	{ 1, 0, 0 },
	{ 0, 17, 23 },
	{ 10, 23, 35 },
	{ 31, 26, 35 },
	{ 31, 21, 35 },
	{ 31, 16, 35 },
	{ 31, 30, 35 },
	{ 31, 24, 35 },
	{ 31, 29, 35 },
	{ 0, 3, 14 },
	{ 0, 4, 15 },
	{ 0, 36, 16 },
	{ 0, 108, 19 },
	{ 0, 133, 38 },
	{ 0, 44, 38 },
	{ 0, 0, 20 },
	{ 0, 0, 21 },
	{ 0, 0, 22 },
	{ 0, 0, 24 },
	{ 0, 0, 25 },
	{ 0, 0, 26 },
	{ 0, 0, 27 },
	{ 0, 0, 28 },
	{ 0, 0, 29 },
	{ 0, 0, 30 },
	{ 0, 0, 31 },
	{ 0, 166, 38 },
	{ 0, 243, 34 },
	{ 0, 253, 38 },
	{ 36, 29, 35 },
	{ 0, 0, 36 },
	{ 0, 3, 37 },
	{ 0, 0, 38 },
	{ 0, 0, 1 },
	{ 37, 30, 35 },
	{ 38, 21, 3 },
	{ 41, 22, 35 },
	{ 31, 24, 35 },
	{ 31, 39, 35 },
	{ 54, 25, 35 },
	{ 31, 31, 35 },
	{ 31, 46, 35 },
	{ 0, 0, 10 },
	{ 0, 0, 11 },
	{ 0, 0, 12 },
	{ 0, 0, 13 },
	{ 0, 0, 17 },
	{ 0, 0, 18 },
	{ 0, 131, 0 },
	{ 30, 0, 0 },
	{ 30, 98, 33 },
	{ 31, 36, 35 },
	{ 55, 44, 7 },
	{ 62, 45, 35 },
	{ 31, 50, 35 },
	{ 31, 31, 35 },
	{ 31, 52, 35 },
	{ 31, 36, 35 },
	{ 0, 0, 32 },
	{ 68, 50, 0 },
	{ 63, 50, 35 },
	{ 64, 45, 4 },
	{ 67, 46, 35 },
	{ 31, 40, 35 },
	{ 31, 39, 35 },
	{ 0, 108, 9 },
	{ 0, 263, 0 },
	{ 68, 0, 33 },
	{ 31, 0, 2 },
	{ 31, 0, 5 },
	{ 31, 56, 35 },
	{ 31, 0, 8 },
	{ 31, 0, 6 }
};

YYCONST yybackup_t YYNEARFAR YYBASED_CODE YYDCDECL yybackup[] = {
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0
};

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