1 /* original parser id follows */ 2 /* yysccsid[] = "@(#)yaccpar 1.9 (Berkeley) 02/21/93" */ 3 /* (use YYMAJOR/YYMINOR for ifdefs dependent on parser version) */ 4 5 #define YYBYACC 1 6 #define YYMAJOR 2 7 #define YYMINOR 0 8 #define YYCHECK "yyyymmdd" 9 10 #define YYEMPTY (-1) 11 #define yyclearin (yychar = YYEMPTY) 12 #define yyerrok (yyerrflag = 0) 13 #define YYRECOVERING() (yyerrflag != 0) 14 #define YYENOMEM (-2) 15 #define YYEOF 0 16 17 #ifndef yyparse 18 #define yyparse calc2_parse 19 #endif /* yyparse */ 20 21 #ifndef yylex 22 #define yylex calc2_lex 23 #endif /* yylex */ 24 25 #ifndef yyerror 26 #define yyerror calc2_error 27 #endif /* yyerror */ 28 29 #ifndef yychar 30 #define yychar calc2_char 31 #endif /* yychar */ 32 33 #ifndef yyval 34 #define yyval calc2_val 35 #endif /* yyval */ 36 37 #ifndef yylval 38 #define yylval calc2_lval 39 #endif /* yylval */ 40 41 #ifndef yydebug 42 #define yydebug calc2_debug 43 #endif /* yydebug */ 44 45 #ifndef yynerrs 46 #define yynerrs calc2_nerrs 47 #endif /* yynerrs */ 48 49 #ifndef yyerrflag 50 #define yyerrflag calc2_errflag 51 #endif /* yyerrflag */ 52 53 #ifndef yylhs 54 #define yylhs calc2_lhs 55 #endif /* yylhs */ 56 57 #ifndef yylen 58 #define yylen calc2_len 59 #endif /* yylen */ 60 61 #ifndef yydefred 62 #define yydefred calc2_defred 63 #endif /* yydefred */ 64 65 #ifndef yydgoto 66 #define yydgoto calc2_dgoto 67 #endif /* yydgoto */ 68 69 #ifndef yysindex 70 #define yysindex calc2_sindex 71 #endif /* yysindex */ 72 73 #ifndef yyrindex 74 #define yyrindex calc2_rindex 75 #endif /* yyrindex */ 76 77 #ifndef yygindex 78 #define yygindex calc2_gindex 79 #endif /* yygindex */ 80 81 #ifndef yytable 82 #define yytable calc2_table 83 #endif /* yytable */ 84 85 #ifndef yycheck 86 #define yycheck calc2_check 87 #endif /* yycheck */ 88 89 #ifndef yyname 90 #define yyname calc2_name 91 #endif /* yyname */ 92 93 #ifndef yyrule 94 #define yyrule calc2_rule 95 #endif /* yyrule */ 96 #define YYPREFIX "calc2_" 97 98 #define YYPURE 0 99 100 #line 7 "calc2.y" 101 # include <stdio.h> 102 # include <ctype.h> 103 104 #ifdef YYBISON 105 #define YYLEX_PARAM base 106 #define YYLEX_DECL() yylex(int *YYLEX_PARAM) 107 #define YYERROR_DECL() yyerror(int regs[26], int *base, const char *s) 108 int YYLEX_DECL(); 109 static void YYERROR_DECL(); 110 #endif 111 112 #line 113 "calc2.tab.c" 113 114 #if ! defined(YYSTYPE) && ! defined(YYSTYPE_IS_DECLARED) 115 /* Default: YYSTYPE is the semantic value type. */ 116 typedef int YYSTYPE; 117 # define YYSTYPE_IS_DECLARED 1 118 #endif 119 120 /* compatibility with bison */ 121 #ifdef YYPARSE_PARAM 122 /* compatibility with FreeBSD */ 123 # ifdef YYPARSE_PARAM_TYPE 124 # define YYPARSE_DECL() yyparse(YYPARSE_PARAM_TYPE YYPARSE_PARAM) 125 # else 126 # define YYPARSE_DECL() yyparse(void *YYPARSE_PARAM) 127 # endif 128 #else 129 # define YYPARSE_DECL() yyparse(int regs[26], int *base) 130 #endif 131 132 /* Parameters sent to lex. */ 133 #ifdef YYLEX_PARAM 134 # define YYLEX_DECL() yylex(void *YYLEX_PARAM) 135 # define YYLEX yylex(YYLEX_PARAM) 136 #else 137 # define YYLEX_DECL() yylex(int *base) 138 # define YYLEX yylex(base) 139 #endif 140 141 /* Parameters sent to yyerror. */ 142 #ifndef YYERROR_DECL 143 #define YYERROR_DECL() yyerror(int regs[26], int *base, const char *s) 144 #endif 145 #ifndef YYERROR_CALL 146 #define YYERROR_CALL(msg) yyerror(regs, base, msg) 147 #endif 148 149 extern int YYPARSE_DECL(); 150 151 #define DIGIT 257 152 #define LETTER 258 153 #define UMINUS 259 154 #define YYERRCODE 256 155 typedef int YYINT; 156 static const YYINT calc2_lhs[] = { -1, 157 0, 0, 0, 1, 1, 2, 2, 2, 2, 2, 158 2, 2, 2, 2, 2, 2, 3, 3, 159 }; 160 static const YYINT calc2_len[] = { 2, 161 0, 3, 3, 1, 3, 3, 3, 3, 3, 3, 162 3, 3, 3, 2, 1, 1, 1, 2, 163 }; 164 static const YYINT calc2_defred[] = { 1, 165 0, 0, 17, 0, 0, 0, 0, 0, 0, 3, 166 0, 15, 14, 0, 2, 0, 0, 0, 0, 0, 167 0, 0, 18, 0, 6, 0, 0, 0, 0, 9, 168 10, 11, 169 }; 170 static const YYINT calc2_dgoto[] = { 1, 171 7, 8, 9, 172 }; 173 static const YYINT calc2_sindex[] = { 0, 174 -40, -7, 0, -55, -38, -38, 1, -29, -247, 0, 175 -38, 0, 0, 22, 0, -38, -38, -38, -38, -38, 176 -38, -38, 0, -29, 0, 51, 60, -20, -20, 0, 177 0, 0, 178 }; 179 static const YYINT calc2_rindex[] = { 0, 180 0, 0, 0, 2, 0, 0, 0, 9, -9, 0, 181 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 182 0, 0, 0, 10, 0, -6, 14, 5, 13, 0, 183 0, 0, 184 }; 185 static const YYINT calc2_gindex[] = { 0, 186 0, 65, 0, 187 }; 188 #define YYTABLESIZE 220 189 static const YYINT calc2_table[] = { 6, 190 16, 6, 10, 13, 5, 11, 5, 22, 17, 23, 191 15, 15, 20, 18, 7, 19, 22, 21, 4, 5, 192 0, 20, 8, 12, 0, 0, 21, 16, 16, 0, 193 0, 16, 16, 16, 13, 16, 0, 16, 15, 15, 194 0, 0, 7, 15, 15, 7, 15, 7, 15, 7, 195 8, 12, 0, 8, 12, 8, 0, 8, 22, 17, 196 0, 0, 25, 20, 18, 0, 19, 0, 21, 13, 197 14, 0, 0, 0, 0, 24, 0, 0, 0, 0, 198 26, 27, 28, 29, 30, 31, 32, 22, 17, 0, 199 0, 0, 20, 18, 16, 19, 22, 21, 0, 0, 200 0, 20, 18, 0, 19, 0, 21, 0, 0, 0, 201 0, 0, 0, 0, 16, 0, 0, 13, 0, 0, 202 0, 0, 0, 0, 0, 15, 0, 0, 7, 0, 203 0, 0, 0, 0, 0, 0, 8, 12, 0, 0, 204 0, 0, 0, 0, 0, 16, 0, 0, 0, 0, 205 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 206 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 207 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 208 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 209 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 210 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 211 0, 0, 0, 0, 0, 2, 3, 4, 3, 12, 212 }; 213 static const YYINT calc2_check[] = { 40, 214 10, 40, 10, 10, 45, 61, 45, 37, 38, 257, 215 10, 10, 42, 43, 10, 45, 37, 47, 10, 10, 216 -1, 42, 10, 10, -1, -1, 47, 37, 38, -1, 217 -1, 41, 42, 43, 41, 45, -1, 47, 37, 38, 218 -1, -1, 38, 42, 43, 41, 45, 43, 47, 45, 219 38, 38, -1, 41, 41, 43, -1, 45, 37, 38, 220 -1, -1, 41, 42, 43, -1, 45, -1, 47, 5, 221 6, -1, -1, -1, -1, 11, -1, -1, -1, -1, 222 16, 17, 18, 19, 20, 21, 22, 37, 38, -1, 223 -1, -1, 42, 43, 124, 45, 37, 47, -1, -1, 224 -1, 42, 43, -1, 45, -1, 47, -1, -1, -1, 225 -1, -1, -1, -1, 124, -1, -1, 124, -1, -1, 226 -1, -1, -1, -1, -1, 124, -1, -1, 124, -1, 227 -1, -1, -1, -1, -1, -1, 124, 124, -1, -1, 228 -1, -1, -1, -1, -1, 124, -1, -1, -1, -1, 229 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 230 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 231 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 232 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 233 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 234 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 235 -1, -1, -1, -1, -1, 256, 257, 258, 257, 258, 236 }; 237 #define YYFINAL 1 238 #ifndef YYDEBUG 239 #define YYDEBUG 0 240 #endif 241 #define YYMAXTOKEN 259 242 #define YYUNDFTOKEN 265 243 #define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a)) 244 #if YYDEBUG 245 static const char *const calc2_name[] = { 246 247 "end-of-file",0,0,0,0,0,0,0,0,0,"'\\n'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 248 0,0,0,0,0,0,"'%'","'&'",0,"'('","')'","'*'","'+'",0,"'-'",0,"'/'",0,0,0,0,0,0,0, 249 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, 250 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, 251 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, 252 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, 253 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, 254 0,0,0,0,0,0,"DIGIT","LETTER","UMINUS",0,0,0,0,0,"illegal-symbol", 255 }; 256 static const char *const calc2_rule[] = { 257 "$accept : list", 258 "list :", 259 "list : list stat '\\n'", 260 "list : list error '\\n'", 261 "stat : expr", 262 "stat : LETTER '=' expr", 263 "expr : '(' expr ')'", 264 "expr : expr '+' expr", 265 "expr : expr '-' expr", 266 "expr : expr '*' expr", 267 "expr : expr '/' expr", 268 "expr : expr '%' expr", 269 "expr : expr '&' expr", 270 "expr : expr '|' expr", 271 "expr : '-' expr", 272 "expr : LETTER", 273 "expr : number", 274 "number : DIGIT", 275 "number : number DIGIT", 276 277 }; 278 #endif 279 280 #if YYDEBUG 281 int yydebug; 282 #endif 283 284 int yyerrflag; 285 int yychar; 286 YYSTYPE yyval; 287 YYSTYPE yylval; 288 int yynerrs; 289 290 /* define the initial stack-sizes */ 291 #ifdef YYSTACKSIZE 292 #undef YYMAXDEPTH 293 #define YYMAXDEPTH YYSTACKSIZE 294 #else 295 #ifdef YYMAXDEPTH 296 #define YYSTACKSIZE YYMAXDEPTH 297 #else 298 #define YYSTACKSIZE 10000 299 #define YYMAXDEPTH 10000 300 #endif 301 #endif 302 303 #define YYINITSTACKSIZE 200 304 305 typedef struct { 306 unsigned stacksize; 307 YYINT *s_base; 308 YYINT *s_mark; 309 YYINT *s_last; 310 YYSTYPE *l_base; 311 YYSTYPE *l_mark; 312 } YYSTACKDATA; 313 /* variables for the parser stack */ 314 static YYSTACKDATA yystack; 315 #line 73 "calc2.y" 316 /* start of programs */ 317 318 #ifdef YYBYACC 319 extern int YYLEX_DECL(); 320 #endif 321 322 int 323 main (void) 324 { 325 int regs[26]; 326 int base = 10; 327 328 while(!feof(stdin)) { 329 yyparse(regs, &base); 330 } 331 return 0; 332 } 333 334 #define UNUSED(x) ((void)(x)) 335 336 static void 337 YYERROR_DECL() 338 { 339 UNUSED(regs); /* %parse-param regs is not actually used here */ 340 UNUSED(base); /* %parse-param base is not actually used here */ 341 fprintf(stderr, "%s\n", s); 342 } 343 344 int 345 YYLEX_DECL() 346 { 347 /* lexical analysis routine */ 348 /* returns LETTER for a lower case letter, yylval = 0 through 25 */ 349 /* return DIGIT for a digit, yylval = 0 through 9 */ 350 /* all other characters are returned immediately */ 351 352 int c; 353 354 while( (c=getchar()) == ' ' ) { /* skip blanks */ } 355 356 /* c is now nonblank */ 357 358 if( islower( c )) { 359 yylval = c - 'a'; 360 return ( LETTER ); 361 } 362 if( isdigit( c )) { 363 yylval = (c - '0') % (*base); 364 return ( DIGIT ); 365 } 366 return( c ); 367 } 368 #line 369 "calc2.tab.c" 369 370 #if YYDEBUG 371 #include <stdio.h> /* needed for printf */ 372 #endif 373 374 #include <stdlib.h> /* needed for malloc, etc */ 375 #include <string.h> /* needed for memset */ 376 377 /* allocate initial stack or double stack size, up to YYMAXDEPTH */ 378 static int yygrowstack(YYSTACKDATA *data) 379 { 380 int i; 381 unsigned newsize; 382 YYINT *newss; 383 YYSTYPE *newvs; 384 385 if ((newsize = data->stacksize) == 0) 386 newsize = YYINITSTACKSIZE; 387 else if (newsize >= YYMAXDEPTH) 388 return YYENOMEM; 389 else if ((newsize *= 2) > YYMAXDEPTH) 390 newsize = YYMAXDEPTH; 391 392 i = (int) (data->s_mark - data->s_base); 393 newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss)); 394 if (newss == NULL) 395 return YYENOMEM; 396 397 data->s_base = newss; 398 data->s_mark = newss + i; 399 400 newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs)); 401 if (newvs == NULL) 402 return YYENOMEM; 403 404 data->l_base = newvs; 405 data->l_mark = newvs + i; 406 407 data->stacksize = newsize; 408 data->s_last = data->s_base + newsize - 1; 409 return 0; 410 } 411 412 #if YYPURE || defined(YY_NO_LEAKS) 413 static void yyfreestack(YYSTACKDATA *data) 414 { 415 free(data->s_base); 416 free(data->l_base); 417 memset(data, 0, sizeof(*data)); 418 } 419 #else 420 #define yyfreestack(data) /* nothing */ 421 #endif 422 423 #define YYABORT goto yyabort 424 #define YYREJECT goto yyabort 425 #define YYACCEPT goto yyaccept 426 #define YYERROR goto yyerrlab 427 428 int 429 YYPARSE_DECL() 430 { 431 int yym, yyn, yystate; 432 #if YYDEBUG 433 const char *yys; 434 435 if ((yys = getenv("YYDEBUG")) != NULL) 436 { 437 yyn = *yys; 438 if (yyn >= '0' && yyn <= '9') 439 yydebug = yyn - '0'; 440 } 441 #endif 442 443 /* yym is set below */ 444 /* yyn is set below */ 445 yynerrs = 0; 446 yyerrflag = 0; 447 yychar = YYEMPTY; 448 yystate = 0; 449 450 #if YYPURE 451 memset(&yystack, 0, sizeof(yystack)); 452 #endif 453 454 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 455 yystack.s_mark = yystack.s_base; 456 yystack.l_mark = yystack.l_base; 457 yystate = 0; 458 *yystack.s_mark = 0; 459 460 yyloop: 461 if ((yyn = yydefred[yystate]) != 0) goto yyreduce; 462 if (yychar < 0) 463 { 464 yychar = YYLEX; 465 if (yychar < 0) yychar = YYEOF; 466 #if YYDEBUG 467 if (yydebug) 468 { 469 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 470 printf("%sdebug: state %d, reading %d (%s)\n", 471 YYPREFIX, yystate, yychar, yys); 472 } 473 #endif 474 } 475 if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 && 476 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar) 477 { 478 #if YYDEBUG 479 if (yydebug) 480 printf("%sdebug: state %d, shifting to state %d\n", 481 YYPREFIX, yystate, yytable[yyn]); 482 #endif 483 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 484 yystate = yytable[yyn]; 485 *++yystack.s_mark = yytable[yyn]; 486 *++yystack.l_mark = yylval; 487 yychar = YYEMPTY; 488 if (yyerrflag > 0) --yyerrflag; 489 goto yyloop; 490 } 491 if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 && 492 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar) 493 { 494 yyn = yytable[yyn]; 495 goto yyreduce; 496 } 497 if (yyerrflag != 0) goto yyinrecovery; 498 499 YYERROR_CALL("syntax error"); 500 501 goto yyerrlab; /* redundant goto avoids 'unused label' warning */ 502 yyerrlab: 503 ++yynerrs; 504 505 yyinrecovery: 506 if (yyerrflag < 3) 507 { 508 yyerrflag = 3; 509 for (;;) 510 { 511 if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 && 512 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE) 513 { 514 #if YYDEBUG 515 if (yydebug) 516 printf("%sdebug: state %d, error recovery shifting\ 517 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]); 518 #endif 519 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 520 yystate = yytable[yyn]; 521 *++yystack.s_mark = yytable[yyn]; 522 *++yystack.l_mark = yylval; 523 goto yyloop; 524 } 525 else 526 { 527 #if YYDEBUG 528 if (yydebug) 529 printf("%sdebug: error recovery discarding state %d\n", 530 YYPREFIX, *yystack.s_mark); 531 #endif 532 if (yystack.s_mark <= yystack.s_base) goto yyabort; 533 --yystack.s_mark; 534 --yystack.l_mark; 535 } 536 } 537 } 538 else 539 { 540 if (yychar == YYEOF) goto yyabort; 541 #if YYDEBUG 542 if (yydebug) 543 { 544 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 545 printf("%sdebug: state %d, error recovery discards token %d (%s)\n", 546 YYPREFIX, yystate, yychar, yys); 547 } 548 #endif 549 yychar = YYEMPTY; 550 goto yyloop; 551 } 552 553 yyreduce: 554 #if YYDEBUG 555 if (yydebug) 556 printf("%sdebug: state %d, reducing by rule %d (%s)\n", 557 YYPREFIX, yystate, yyn, yyrule[yyn]); 558 #endif 559 yym = yylen[yyn]; 560 if (yym > 0) 561 yyval = yystack.l_mark[1-yym]; 562 else 563 memset(&yyval, 0, sizeof yyval); 564 565 switch (yyn) 566 { 567 case 3: 568 #line 35 "calc2.y" 569 { yyerrok ; } 570 #line 571 "calc2.tab.c" 571 break; 572 case 4: 573 #line 39 "calc2.y" 574 { printf("%d\n",yystack.l_mark[0]);} 575 #line 576 "calc2.tab.c" 576 break; 577 case 5: 578 #line 41 "calc2.y" 579 { regs[yystack.l_mark[-2]] = yystack.l_mark[0]; } 580 #line 581 "calc2.tab.c" 581 break; 582 case 6: 583 #line 45 "calc2.y" 584 { yyval = yystack.l_mark[-1]; } 585 #line 586 "calc2.tab.c" 586 break; 587 case 7: 588 #line 47 "calc2.y" 589 { yyval = yystack.l_mark[-2] + yystack.l_mark[0]; } 590 #line 591 "calc2.tab.c" 591 break; 592 case 8: 593 #line 49 "calc2.y" 594 { yyval = yystack.l_mark[-2] - yystack.l_mark[0]; } 595 #line 596 "calc2.tab.c" 596 break; 597 case 9: 598 #line 51 "calc2.y" 599 { yyval = yystack.l_mark[-2] * yystack.l_mark[0]; } 600 #line 601 "calc2.tab.c" 601 break; 602 case 10: 603 #line 53 "calc2.y" 604 { yyval = yystack.l_mark[-2] / yystack.l_mark[0]; } 605 #line 606 "calc2.tab.c" 606 break; 607 case 11: 608 #line 55 "calc2.y" 609 { yyval = yystack.l_mark[-2] % yystack.l_mark[0]; } 610 #line 611 "calc2.tab.c" 611 break; 612 case 12: 613 #line 57 "calc2.y" 614 { yyval = yystack.l_mark[-2] & yystack.l_mark[0]; } 615 #line 616 "calc2.tab.c" 616 break; 617 case 13: 618 #line 59 "calc2.y" 619 { yyval = yystack.l_mark[-2] | yystack.l_mark[0]; } 620 #line 621 "calc2.tab.c" 621 break; 622 case 14: 623 #line 61 "calc2.y" 624 { yyval = - yystack.l_mark[0]; } 625 #line 626 "calc2.tab.c" 626 break; 627 case 15: 628 #line 63 "calc2.y" 629 { yyval = regs[yystack.l_mark[0]]; } 630 #line 631 "calc2.tab.c" 631 break; 632 case 17: 633 #line 68 "calc2.y" 634 { yyval = yystack.l_mark[0]; (*base) = (yystack.l_mark[0]==0) ? 8 : 10; } 635 #line 636 "calc2.tab.c" 636 break; 637 case 18: 638 #line 70 "calc2.y" 639 { yyval = (*base) * yystack.l_mark[-1] + yystack.l_mark[0]; } 640 #line 641 "calc2.tab.c" 641 break; 642 #line 643 "calc2.tab.c" 643 } 644 yystack.s_mark -= yym; 645 yystate = *yystack.s_mark; 646 yystack.l_mark -= yym; 647 yym = yylhs[yyn]; 648 if (yystate == 0 && yym == 0) 649 { 650 #if YYDEBUG 651 if (yydebug) 652 printf("%sdebug: after reduction, shifting from state 0 to\ 653 state %d\n", YYPREFIX, YYFINAL); 654 #endif 655 yystate = YYFINAL; 656 *++yystack.s_mark = YYFINAL; 657 *++yystack.l_mark = yyval; 658 if (yychar < 0) 659 { 660 yychar = YYLEX; 661 if (yychar < 0) yychar = YYEOF; 662 #if YYDEBUG 663 if (yydebug) 664 { 665 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 666 printf("%sdebug: state %d, reading %d (%s)\n", 667 YYPREFIX, YYFINAL, yychar, yys); 668 } 669 #endif 670 } 671 if (yychar == YYEOF) goto yyaccept; 672 goto yyloop; 673 } 674 if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 && 675 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate) 676 yystate = yytable[yyn]; 677 else 678 yystate = yydgoto[yym]; 679 #if YYDEBUG 680 if (yydebug) 681 printf("%sdebug: after reduction, shifting from state %d \ 682 to state %d\n", YYPREFIX, *yystack.s_mark, yystate); 683 #endif 684 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 685 *++yystack.s_mark = (YYINT) yystate; 686 *++yystack.l_mark = yyval; 687 goto yyloop; 688 689 yyoverflow: 690 YYERROR_CALL("yacc stack overflow"); 691 692 yyabort: 693 yyfreestack(&yystack); 694 return (1); 695 696 yyaccept: 697 yyfreestack(&yystack); 698 return (0); 699 } 700