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-rw-r--r--lcc/tst/yacc.c591
1 files changed, 0 insertions, 591 deletions
diff --git a/lcc/tst/yacc.c b/lcc/tst/yacc.c
deleted file mode 100644
index 3e297d2..0000000
--- a/lcc/tst/yacc.c
+++ /dev/null
@@ -1,591 +0,0 @@
-# define ID 257
-# define CON 258
-# define UNARYMINUS 259
-#define yyclearin yychar = -1
-#define yyerrok yyerrflag = 0
-extern int yychar;
-extern short yyerrflag;
-#ifndef YYMAXDEPTH
-#define YYMAXDEPTH 150
-#endif
-#ifndef YYSTYPE
-#define YYSTYPE int
-#endif
-YYSTYPE yylval, yyval;
-# define YYERRCODE 256
-
-
-
-#include <stdio.h>
-
-# define U(x) x
-# define NLSTATE yyprevious=YYNEWLINE
-# define BEGIN yybgin = yysvec + 1 +
-# define INITIAL 0
-# define YYLERR yysvec
-# define YYSTATE (yyestate-yysvec-1)
-# define YYOPTIM 1
-# define YYLMAX 200
-# define output(c) (void)putc(c,yyout)
-# define input() (((yytchar=yysptr>yysbuf?U(*--yysptr):getc(yyin))==10?(yylineno++,yytchar):yytchar)==EOF?0:yytchar)
-# define unput(c) {yytchar= (c);if(yytchar=='\n')yylineno--;*yysptr++=yytchar;}
-# define yymore() (yymorfg=1)
-# define ECHO fprintf(yyout, "%s",yytext)
-# define REJECT { nstr = yyreject(); goto yyfussy;}
-int yyleng; extern char yytext[];
-int yymorfg;
-extern char *yysptr, yysbuf[];
-int yytchar;
-FILE *yyin ={stdin}, *yyout ={stdout};
-extern int yylineno;
-struct yysvf {
- struct yywork *yystoff;
- struct yysvf *yyother;
- int *yystops;};
-struct yysvf *yyestate;
-extern struct yysvf yysvec[], *yybgin;
-# define YYNEWLINE 10
-yylex(){
-int nstr; extern int yyprevious;
-while((nstr = yylook()) >= 0)
-yyfussy: switch(nstr){
-case 0:
-if(yywrap()) return(0); break;
-case 1:
- return ID;
-break;
-case 2:
- return CON;
-break;
-case 3:
- ;
-break;
-case 4:
- return yytext[0];
-break;
-case -1:
-break;
-default:
-fprintf(yyout,"bad switch yylook %d",nstr);
-} return(0); }
-/* end of yylex */
-int yyvstop[] ={
-0,
-
-4,
-0,
-
-3,
-4,
-0,
-
-2,
-4,
-0,
-
-1,
-4,
-0,
-
-2,
-0,
-
-1,
-0,
-0};
-# define YYTYPE char
-struct yywork { YYTYPE verify, advance; } yycrank[] ={
-0,0, 0,0, 1,3, 0,0,
-0,0, 0,0, 0,0, 0,0,
-0,0, 0,0, 1,4, 1,3,
-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,
-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, 1,5, 5,7, 5,7,
-5,7, 5,7, 5,7, 5,7,
-5,7, 5,7, 5,7, 5,7,
-0,0, 0,0, 0,0, 0,0,
-0,0, 0,0, 1,6, 6,8,
-6,8, 6,8, 6,8, 6,8,
-6,8, 6,8, 6,8, 6,8,
-6,8, 0,0, 0,0, 0,0,
-0,0, 0,0, 0,0, 0,0,
-6,8, 6,8, 6,8, 6,8,
-6,8, 6,8, 6,8, 6,8,
-6,8, 6,8, 6,8, 6,8,
-6,8, 6,8, 6,8, 6,8,
-6,8, 6,8, 6,8, 6,8,
-6,8, 6,8, 6,8, 6,8,
-6,8, 6,8, 0,0, 0,0,
-0,0, 0,0, 6,8, 0,0,
-6,8, 6,8, 6,8, 6,8,
-6,8, 6,8, 6,8, 6,8,
-6,8, 6,8, 6,8, 6,8,
-6,8, 6,8, 6,8, 6,8,
-6,8, 6,8, 6,8, 6,8,
-6,8, 6,8, 6,8, 6,8,
-6,8, 6,8, 0,0, 0,0,
-0,0};
-struct yysvf yysvec[] ={
-0, 0, 0,
-yycrank+-1, 0, 0,
-yycrank+0, yysvec+1, 0,
-yycrank+0, 0, yyvstop+1,
-yycrank+0, 0, yyvstop+3,
-yycrank+2, 0, yyvstop+6,
-yycrank+19, 0, yyvstop+9,
-yycrank+0, yysvec+5, yyvstop+12,
-yycrank+0, yysvec+6, yyvstop+14,
-0, 0, 0};
-struct yywork *yytop = yycrank+141;
-struct yysvf *yybgin = yysvec+1;
-char yymatch[] ={
-00 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
-01 ,011 ,012 ,01 ,01 ,01 ,01 ,01 ,
-01 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
-01 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
-011 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
-01 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
-'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,
-'0' ,'0' ,01 ,01 ,01 ,01 ,01 ,01 ,
-01 ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
-'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
-'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
-'A' ,'A' ,'A' ,01 ,01 ,01 ,01 ,'A' ,
-01 ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
-'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
-'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
-'A' ,'A' ,'A' ,01 ,01 ,01 ,01 ,01 ,
-0};
-char yyextra[] ={
-0,0,0,0,0,0,0,0,
-0};
-/* ncform 4.1 83/08/11 */
-
-int yylineno =1;
-# define YYU(x) x
-# define NLSTATE yyprevious=YYNEWLINE
-char yytext[YYLMAX];
-struct yysvf *yylstate [YYLMAX], **yylsp, **yyolsp;
-char yysbuf[YYLMAX];
-char *yysptr = yysbuf;
-int *yyfnd;
-extern struct yysvf *yyestate;
-int yyprevious = YYNEWLINE;
-yylook(){
- register struct yysvf *yystate, **lsp;
- register struct yywork *yyt;
- struct yysvf *yyz;
- int yych;
- struct yywork *yyr;
-# ifdef LEXDEBUG
- int debug;
-# endif
- char *yylastch;
- /* start off machines */
-# ifdef LEXDEBUG
- debug = 0;
-# endif
- if (!yymorfg)
- yylastch = yytext;
- else {
- yymorfg=0;
- yylastch = yytext+yyleng;
- }
- for(;;){
- lsp = yylstate;
- yyestate = yystate = yybgin;
- if (yyprevious==YYNEWLINE) yystate++;
- for (;;){
-# ifdef LEXDEBUG
- if(debug)fprintf(yyout,"state %d\n",yystate-yysvec-1);
-# endif
- yyt = yystate->yystoff;
- if(yyt == yycrank){ /* may not be any transitions */
- yyz = yystate->yyother;
- if(yyz == 0)break;
- if(yyz->yystoff == yycrank)break;
- }
- *yylastch++ = yych = input();
- tryagain:
-# ifdef LEXDEBUG
- if(debug){
- fprintf(yyout,"char ");
- allprint(yych);
- putchar('\n');
- }
-# endif
- yyr = yyt;
- if ( yyt > yycrank){
- yyt = yyr + yych;
- if (yyt <= yytop && yyt->verify+yysvec == yystate){
- if(yyt->advance+yysvec == YYLERR) /* error transitions */
- {unput(*--yylastch);break;}
- *lsp++ = yystate = yyt->advance+yysvec;
- goto contin;
- }
- }
-# ifdef YYOPTIM
- else if(yyt < yycrank) { /* r < yycrank */
- yyt = yyr = yycrank+(yycrank-yyt);
-# ifdef LEXDEBUG
- if(debug)fprintf(yyout,"compressed state\n");
-# endif
- yyt = yyt + yych;
- if(yyt <= yytop && yyt->verify+yysvec == yystate){
- if(yyt->advance+yysvec == YYLERR) /* error transitions */
- {unput(*--yylastch);break;}
- *lsp++ = yystate = yyt->advance+yysvec;
- goto contin;
- }
- yyt = yyr + YYU(yymatch[yych]);
-# ifdef LEXDEBUG
- if(debug){
- fprintf(yyout,"try fall back character ");
- allprint(YYU(yymatch[yych]));
- putchar('\n');
- }
-# endif
- if(yyt <= yytop && yyt->verify+yysvec == yystate){
- if(yyt->advance+yysvec == YYLERR) /* error transition */
- {unput(*--yylastch);break;}
- *lsp++ = yystate = yyt->advance+yysvec;
- goto contin;
- }
- }
- if ((yystate = yystate->yyother) && (yyt= yystate->yystoff) != yycrank){
-# ifdef LEXDEBUG
- if(debug)fprintf(yyout,"fall back to state %d\n",yystate-yysvec-1);
-# endif
- goto tryagain;
- }
-# endif
- else
- {unput(*--yylastch);break;}
- contin:
-# ifdef LEXDEBUG
- if(debug){
- fprintf(yyout,"state %d char ",yystate-yysvec-1);
- allprint(yych);
- putchar('\n');
- }
-# endif
- ;
- }
-# ifdef LEXDEBUG
- if(debug){
- fprintf(yyout,"stopped at %d with ",*(lsp-1)-yysvec-1);
- allprint(yych);
- putchar('\n');
- }
-# endif
- while (lsp-- > yylstate){
- *yylastch-- = 0;
- if (*lsp != 0 && (yyfnd= (*lsp)->yystops) && *yyfnd > 0){
- yyolsp = lsp;
- if(yyextra[*yyfnd]){ /* must backup */
- while(yyback((*lsp)->yystops,-*yyfnd) != 1 && lsp > yylstate){
- lsp--;
- unput(*yylastch--);
- }
- }
- yyprevious = YYU(*yylastch);
- yylsp = lsp;
- yyleng = yylastch-yytext+1;
- yytext[yyleng] = 0;
-# ifdef LEXDEBUG
- if(debug){
- fprintf(yyout,"\nmatch ");
- sprint(yytext);
- fprintf(yyout," action %d\n",*yyfnd);
- }
-# endif
- return(*yyfnd++);
- }
- unput(*yylastch);
- }
- if (yytext[0] == 0 /* && feof(yyin) */)
- {
- yysptr=yysbuf;
- return(0);
- }
- yyprevious = yytext[0] = input();
- if (yyprevious>0)
- output(yyprevious);
- yylastch=yytext;
-# ifdef LEXDEBUG
- if(debug)putchar('\n');
-# endif
- }
- }
-yyback(p, m)
- int *p;
-{
-if (p==0) return(0);
-while (*p)
- {
- if (*p++ == m)
- return(1);
- }
-return(0);
-}
- /* the following are only used in the lex library */
-yyinput(){
- return(input());
- }
-yyoutput(c)
- int c; {
- output(c);
- }
-yyunput(c)
- int c; {
- unput(c);
- }
-
-main() {
- yyparse();
- return 0;
-}
-
-/* yyerror - issue error message */
-yyerror(s) char *s; {
- printf("%s\n", s);
-}
-short yyexca[] ={
--1, 1,
- 0, -1,
- -2, 0,
- };
-# define YYNPROD 15
-# define YYLAST 249
-short yyact[]={
-
- 12, 2, 9, 8, 17, 11, 25, 17, 15, 18,
- 16, 10, 18, 17, 15, 7, 16, 13, 18, 5,
- 3, 1, 0, 19, 20, 0, 0, 21, 22, 23,
- 24, 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, 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, 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, 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, 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, 6, 14, 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, 4, 6 };
-short yypact[]={
-
--1000, -9,-1000, 5, -7, -59,-1000,-1000,-1000, -40,
- -29, -40, -40,-1000,-1000, -40, -40, -40, -40, -38,
- -35, -38, -38,-1000,-1000,-1000 };
-short yypgo[]={
-
- 0, 21, 20, 17, 11 };
-short yyr1[]={
-
- 0, 1, 1, 1, 1, 2, 4, 4, 4, 4,
- 4, 4, 4, 4, 3 };
-short yyr2[]={
-
- 0, 0, 2, 3, 3, 3, 3, 3, 3, 3,
- 2, 3, 1, 1, 1 };
-short yychk[]={
-
--1000, -1, 10, -2, 256, -3, 257, 10, 10, 61,
- -4, 45, 40, -3, 258, 43, 45, 42, 47, -4,
- -4, -4, -4, -4, -4, 41 };
-short yydef[]={
-
- 1, -2, 2, 0, 0, 0, 14, 3, 4, 0,
- 5, 0, 0, 12, 13, 0, 0, 0, 0, 10,
- 0, 6, 7, 8, 9, 11 };
-#ifndef lint
-#endif
-
-# define YYFLAG -1000
-# define YYERROR goto yyerrlab
-# define YYACCEPT return(0)
-# define YYABORT return(1)
-
-/* parser for yacc output */
-
-#ifdef YYDEBUG
-int yydebug = 0; /* 1 for debugging */
-#endif
-YYSTYPE yyv[YYMAXDEPTH]; /* where the values are stored */
-int yychar = -1; /* current input token number */
-int yynerrs = 0; /* number of errors */
-short yyerrflag = 0; /* error recovery flag */
-
-yyparse() {
-
- short yys[YYMAXDEPTH];
- short yyj, yym;
- register YYSTYPE *yypvt;
- register short yystate, *yyps, yyn;
- register YYSTYPE *yypv;
- register short *yyxi;
-
- yystate = 0;
- yychar = -1;
- yynerrs = 0;
- yyerrflag = 0;
- yyps= &yys[-1];
- yypv= &yyv[-1];
-
- yystack: /* put a state and value onto the stack */
-
-#ifdef YYDEBUG
- if( yydebug ) printf( "state %d, char 0%o\n", yystate, yychar );
-#endif
- if( ++yyps> &yys[YYMAXDEPTH] ) { yyerror( "yacc stack overflow" ); return(1); }
- *yyps = yystate;
- ++yypv;
- *yypv = yyval;
-
- yynewstate:
-
- yyn = yypact[yystate];
-
- if( yyn<= YYFLAG ) goto yydefault; /* simple state */
-
- if( yychar<0 ) if( (yychar=yylex())<0 ) yychar=0;
- if( (yyn += yychar)<0 || yyn >= YYLAST ) goto yydefault;
-
- if( yychk[ yyn=yyact[ yyn ] ] == yychar ){ /* valid shift */
- yychar = -1;
- yyval = yylval;
- yystate = yyn;
- if( yyerrflag > 0 ) --yyerrflag;
- goto yystack;
- }
-
- yydefault:
- /* default state action */
-
- if( (yyn=yydef[yystate]) == -2 ) {
- if( yychar<0 ) if( (yychar=yylex())<0 ) yychar = 0;
- /* look through exception table */
-
- for( yyxi=yyexca; (*yyxi!= (-1)) || (yyxi[1]!=yystate) ; yyxi += 2 ) ; /* VOID */
-
- while( *(yyxi+=2) >= 0 ){
- if( *yyxi == yychar ) break;
- }
- if( (yyn = yyxi[1]) < 0 ) return(0); /* accept */
- }
-
- if( yyn == 0 ){ /* error */
- /* error ... attempt to resume parsing */
-
- switch( yyerrflag ){
-
- case 0: /* brand new error */
-
- yyerror( "syntax error" );
- yyerrlab:
- ++yynerrs;
-
- case 1:
- case 2: /* incompletely recovered error ... try again */
-
- yyerrflag = 3;
-
- /* find a state where "error" is a legal shift action */
-
- while ( yyps >= yys ) {
- yyn = yypact[*yyps] + YYERRCODE;
- if( yyn>= 0 && yyn < YYLAST && yychk[yyact[yyn]] == YYERRCODE ){
- yystate = yyact[yyn]; /* simulate a shift of "error" */
- goto yystack;
- }
- yyn = yypact[*yyps];
-
- /* the current yyps has no shift onn "error", pop stack */
-
-#ifdef YYDEBUG
- if( yydebug ) printf( "error recovery pops state %d, uncovers %d\n", *yyps, yyps[-1] );
-#endif
- --yyps;
- --yypv;
- }
-
- /* there is no state on the stack with an error shift ... abort */
-
- yyabort:
- return(1);
-
-
- case 3: /* no shift yet; clobber input char */
-
-#ifdef YYDEBUG
- if( yydebug ) printf( "error recovery discards char %d\n", yychar );
-#endif
-
- if( yychar == 0 ) goto yyabort; /* don't discard EOF, quit */
- yychar = -1;
- goto yynewstate; /* try again in the same state */
-
- }
-
- }
-
- /* reduction by production yyn */
-
-#ifdef YYDEBUG
- if( yydebug ) printf("reduce %d\n",yyn);
-#endif
- yyps -= yyr2[yyn];
- yypvt = yypv;
- yypv -= yyr2[yyn];
- yyval = yypv[1];
- yym=yyn;
- /* consult goto table to find next state */
- yyn = yyr1[yyn];
- yyj = yypgo[yyn] + *yyps + 1;
- if( yyj>=YYLAST || yychk[ yystate = yyact[yyj] ] != -yyn ) yystate = yyact[yypgo[yyn]];
- switch(yym){
-
-case 4:
-{ yyerrok; } break;
-case 5:
-{ printf("store\n"); } break;
-case 6:
-{ printf("add\n"); } break;
-case 7:
-{ printf("negate\nadd\n"); } break;
-case 8:
-{ printf("multiply\n"); } break;
-case 9:
-{ printf("divide\n"); } break;
-case 10:
-{ printf("negate\n"); } break;
-case 12:
-{ printf("load\n"); } break;
-case 13:
-{ printf("push %s\n", yytext); } break;
-case 14:
-{ printf("%s\n", yytext); } break;
- }
- goto yystack; /* stack new state and value */
-
- }
-int yywrap() { return 1; }
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 23:25:31 +0000