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 1 7 #define YYMINOR 9 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 calc_code_default_parse 19 #endif /* yyparse */ 20 21 #ifndef yylex 22 #define yylex calc_code_default_lex 23 #endif /* yylex */ 24 25 #ifndef yyerror 26 #define yyerror calc_code_default_error 27 #endif /* yyerror */ 28 29 #ifndef yychar 30 #define yychar calc_code_default_char 31 #endif /* yychar */ 32 33 #ifndef yyval 34 #define yyval calc_code_default_val 35 #endif /* yyval */ 36 37 #ifndef yylval 38 #define yylval calc_code_default_lval 39 #endif /* yylval */ 40 41 #ifndef yydebug 42 #define yydebug calc_code_default_debug 43 #endif /* yydebug */ 44 45 #ifndef yynerrs 46 #define yynerrs calc_code_default_nerrs 47 #endif /* yynerrs */ 48 49 #ifndef yyerrflag 50 #define yyerrflag calc_code_default_errflag 51 #endif /* yyerrflag */ 52 53 #ifndef yylhs 54 #define yylhs calc_code_default_lhs 55 #endif /* yylhs */ 56 57 #ifndef yylen 58 #define yylen calc_code_default_len 59 #endif /* yylen */ 60 61 #ifndef yydefred 62 #define yydefred calc_code_default_defred 63 #endif /* yydefred */ 64 65 #ifndef yydgoto 66 #define yydgoto calc_code_default_dgoto 67 #endif /* yydgoto */ 68 69 #ifndef yysindex 70 #define yysindex calc_code_default_sindex 71 #endif /* yysindex */ 72 73 #ifndef yyrindex 74 #define yyrindex calc_code_default_rindex 75 #endif /* yyrindex */ 76 77 #ifndef yygindex 78 #define yygindex calc_code_default_gindex 79 #endif /* yygindex */ 80 81 #ifndef yytable 82 #define yytable calc_code_default_table 83 #endif /* yytable */ 84 85 #ifndef yycheck 86 #define yycheck calc_code_default_check 87 #endif /* yycheck */ 88 89 #ifndef yyname 90 #define yyname calc_code_default_name 91 #endif /* yyname */ 92 93 #ifndef yyrule 94 #define yyrule calc_code_default_rule 95 #endif /* yyrule */ 96 #define YYPREFIX "calc_code_default_" 97 98 #define YYPURE 0 99 100 #line 5 "calc_code_default.y" 101 # include <stdio.h> 102 # include <ctype.h> 103 104 int regs[26]; 105 int base; 106 107 extern int yylex(void); 108 static void yyerror(const char *s); 109 110 #line 111 "calc_code_default.tab.c" 111 112 #if ! defined(YYSTYPE) && ! defined(YYSTYPE_IS_DECLARED) 113 /* Default: YYSTYPE is the semantic value type. */ 114 typedef int YYSTYPE; 115 # define YYSTYPE_IS_DECLARED 1 116 #endif 117 118 /* compatibility with bison */ 119 #ifdef YYPARSE_PARAM 120 /* compatibility with FreeBSD */ 121 # ifdef YYPARSE_PARAM_TYPE 122 # define YYPARSE_DECL() yyparse(YYPARSE_PARAM_TYPE YYPARSE_PARAM) 123 # else 124 # define YYPARSE_DECL() yyparse(void *YYPARSE_PARAM) 125 # endif 126 #else 127 # define YYPARSE_DECL() yyparse(void) 128 #endif 129 130 /* Parameters sent to lex. */ 131 #ifdef YYLEX_PARAM 132 # define YYLEX_DECL() yylex(void *YYLEX_PARAM) 133 # define YYLEX yylex(YYLEX_PARAM) 134 #else 135 # define YYLEX_DECL() yylex(void) 136 # define YYLEX yylex() 137 #endif 138 139 /* Parameters sent to yyerror. */ 140 #ifndef YYERROR_DECL 141 #define YYERROR_DECL() yyerror(const char *s) 142 #endif 143 #ifndef YYERROR_CALL 144 #define YYERROR_CALL(msg) yyerror(msg) 145 #endif 146 147 extern int YYPARSE_DECL(); 148 149 #define DIGIT 257 150 #define LETTER 258 151 #define UMINUS 259 152 #define YYERRCODE 256 153 typedef int YYINT; 154 static const YYINT calc_code_default_lhs[] = { -1, 155 0, 0, 0, 1, 1, 2, 2, 2, 2, 2, 156 2, 2, 2, 2, 2, 2, 3, 3, 157 }; 158 static const YYINT calc_code_default_len[] = { 2, 159 0, 3, 3, 1, 3, 3, 3, 3, 3, 3, 160 3, 3, 3, 2, 1, 1, 1, 2, 161 }; 162 static const YYINT calc_code_default_defred[] = { 1, 163 0, 0, 17, 0, 0, 0, 0, 0, 0, 3, 164 0, 15, 14, 0, 2, 0, 0, 0, 0, 0, 165 0, 0, 18, 0, 6, 0, 0, 0, 0, 9, 166 10, 11, 167 }; 168 static const YYINT calc_code_default_dgoto[] = { 1, 169 7, 8, 9, 170 }; 171 static const YYINT calc_code_default_sindex[] = { 0, 172 -40, -7, 0, -55, -38, -38, 1, -29, -247, 0, 173 -38, 0, 0, 22, 0, -38, -38, -38, -38, -38, 174 -38, -38, 0, -29, 0, 51, 60, -20, -20, 0, 175 0, 0, 176 }; 177 static const YYINT calc_code_default_rindex[] = { 0, 178 0, 0, 0, 2, 0, 0, 0, 9, -9, 0, 179 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 180 0, 0, 0, 10, 0, -6, 14, 5, 13, 0, 181 0, 0, 182 }; 183 static const YYINT calc_code_default_gindex[] = { 0, 184 0, 65, 0, 185 }; 186 #define YYTABLESIZE 220 187 static const YYINT calc_code_default_table[] = { 6, 188 16, 6, 10, 13, 5, 11, 5, 22, 17, 23, 189 15, 15, 20, 18, 7, 19, 22, 21, 4, 5, 190 0, 20, 8, 12, 0, 0, 21, 16, 16, 0, 191 0, 16, 16, 16, 13, 16, 0, 16, 15, 15, 192 0, 0, 7, 15, 15, 7, 15, 7, 15, 7, 193 8, 12, 0, 8, 12, 8, 0, 8, 22, 17, 194 0, 0, 25, 20, 18, 0, 19, 0, 21, 13, 195 14, 0, 0, 0, 0, 24, 0, 0, 0, 0, 196 26, 27, 28, 29, 30, 31, 32, 22, 17, 0, 197 0, 0, 20, 18, 16, 19, 22, 21, 0, 0, 198 0, 20, 18, 0, 19, 0, 21, 0, 0, 0, 199 0, 0, 0, 0, 16, 0, 0, 13, 0, 0, 200 0, 0, 0, 0, 0, 15, 0, 0, 7, 0, 201 0, 0, 0, 0, 0, 0, 8, 12, 0, 0, 202 0, 0, 0, 0, 0, 16, 0, 0, 0, 0, 203 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 204 0, 0, 0, 0, 0, 0, 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, 2, 3, 4, 3, 12, 210 }; 211 static const YYINT calc_code_default_check[] = { 40, 212 10, 40, 10, 10, 45, 61, 45, 37, 38, 257, 213 10, 10, 42, 43, 10, 45, 37, 47, 10, 10, 214 -1, 42, 10, 10, -1, -1, 47, 37, 38, -1, 215 -1, 41, 42, 43, 41, 45, -1, 47, 37, 38, 216 -1, -1, 38, 42, 43, 41, 45, 43, 47, 45, 217 38, 38, -1, 41, 41, 43, -1, 45, 37, 38, 218 -1, -1, 41, 42, 43, -1, 45, -1, 47, 5, 219 6, -1, -1, -1, -1, 11, -1, -1, -1, -1, 220 16, 17, 18, 19, 20, 21, 22, 37, 38, -1, 221 -1, -1, 42, 43, 124, 45, 37, 47, -1, -1, 222 -1, 42, 43, -1, 45, -1, 47, -1, -1, -1, 223 -1, -1, -1, -1, 124, -1, -1, 124, -1, -1, 224 -1, -1, -1, -1, -1, 124, -1, -1, 124, -1, 225 -1, -1, -1, -1, -1, -1, 124, 124, -1, -1, 226 -1, -1, -1, -1, -1, 124, -1, -1, -1, -1, 227 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 228 -1, -1, -1, -1, -1, -1, -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, 256, 257, 258, 257, 258, 234 }; 235 #define YYFINAL 1 236 #ifndef YYDEBUG 237 #define YYDEBUG 0 238 #endif 239 #define YYMAXTOKEN 259 240 #define YYUNDFTOKEN 265 241 #define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a)) 242 #if YYDEBUG 243 static const char *const calc_code_default_name[] = { 244 245 "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, 246 0,0,0,0,0,0,"'%'","'&'",0,"'('","')'","'*'","'+'",0,"'-'",0,"'/'",0,0,0,0,0,0,0, 247 0,0,0,0,0,0,"'='",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 248 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'|'",0,0,0,0,0,0, 249 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 250 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 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,"DIGIT","LETTER","UMINUS",0,0,0,0,0,"illegal-symbol", 253 }; 254 static const char *const calc_code_default_rule[] = { 255 "$accept : list", 256 "list :", 257 "list : list stat '\\n'", 258 "list : list error '\\n'", 259 "stat : expr", 260 "stat : LETTER '=' expr", 261 "expr : '(' expr ')'", 262 "expr : expr '+' expr", 263 "expr : 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", 270 "expr : LETTER", 271 "expr : number", 272 "number : DIGIT", 273 "number : number DIGIT", 274 275 }; 276 #endif 277 278 #if YYDEBUG 279 int yydebug; 280 #endif 281 282 int yyerrflag; 283 int yychar; 284 YYSTYPE yyval; 285 YYSTYPE yylval; 286 int yynerrs; 287 288 /* define the initial stack-sizes */ 289 #ifdef YYSTACKSIZE 290 #undef YYMAXDEPTH 291 #define YYMAXDEPTH YYSTACKSIZE 292 #else 293 #ifdef YYMAXDEPTH 294 #define YYSTACKSIZE YYMAXDEPTH 295 #else 296 #define YYSTACKSIZE 10000 297 #define YYMAXDEPTH 10000 298 #endif 299 #endif 300 301 #define YYINITSTACKSIZE 200 302 303 typedef struct { 304 unsigned stacksize; 305 YYINT *s_base; 306 YYINT *s_mark; 307 YYINT *s_last; 308 YYSTYPE *l_base; 309 YYSTYPE *l_mark; 310 } YYSTACKDATA; 311 /* variables for the parser stack */ 312 static YYSTACKDATA yystack; 313 314 /* %code "" block start */ 315 #line 1 "calc_code_default.y" 316 /* CODE-DEFAULT */ 317 #line 2 "calc_code_default.y" 318 /* CODE-DEFAULT2 */ 319 /* %code "" block end */ 320 #line 321 "calc_code_default.tab.c" 321 #line 69 "calc_code_default.y" 322 /* start of programs */ 323 324 int 325 main (void) 326 { 327 while(!feof(stdin)) { 328 yyparse(); 329 } 330 return 0; 331 } 332 333 static void 334 yyerror(const char *s) 335 { 336 fprintf(stderr, "%s\n", s); 337 } 338 339 int 340 yylex(void) 341 { 342 /* lexical analysis routine */ 343 /* returns LETTER for a lower case letter, yylval = 0 through 25 */ 344 /* return DIGIT for a digit, yylval = 0 through 9 */ 345 /* all other characters are returned immediately */ 346 347 int c; 348 349 while( (c=getchar()) == ' ' ) { /* skip blanks */ } 350 351 /* c is now nonblank */ 352 353 if( islower( c )) { 354 yylval = c - 'a'; 355 return ( LETTER ); 356 } 357 if( isdigit( c )) { 358 yylval = c - '0'; 359 return ( DIGIT ); 360 } 361 return( c ); 362 } 363 #line 364 "calc_code_default.tab.c" 364 365 #if YYDEBUG 366 #include <stdio.h> /* needed for printf */ 367 #endif 368 369 #include <stdlib.h> /* needed for malloc, etc */ 370 #include <string.h> /* needed for memset */ 371 372 /* allocate initial stack or double stack size, up to YYMAXDEPTH */ 373 static int yygrowstack(YYSTACKDATA *data) 374 { 375 int i; 376 unsigned newsize; 377 YYINT *newss; 378 YYSTYPE *newvs; 379 380 if ((newsize = data->stacksize) == 0) 381 newsize = YYINITSTACKSIZE; 382 else if (newsize >= YYMAXDEPTH) 383 return YYENOMEM; 384 else if ((newsize *= 2) > YYMAXDEPTH) 385 newsize = YYMAXDEPTH; 386 387 i = (int) (data->s_mark - data->s_base); 388 newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss)); 389 if (newss == NULL) 390 return YYENOMEM; 391 392 data->s_base = newss; 393 data->s_mark = newss + i; 394 395 newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs)); 396 if (newvs == NULL) 397 return YYENOMEM; 398 399 data->l_base = newvs; 400 data->l_mark = newvs + i; 401 402 data->stacksize = newsize; 403 data->s_last = data->s_base + newsize - 1; 404 return 0; 405 } 406 407 #if YYPURE || defined(YY_NO_LEAKS) 408 static void yyfreestack(YYSTACKDATA *data) 409 { 410 free(data->s_base); 411 free(data->l_base); 412 memset(data, 0, sizeof(*data)); 413 } 414 #else 415 #define yyfreestack(data) /* nothing */ 416 #endif 417 418 #define YYABORT goto yyabort 419 #define YYREJECT goto yyabort 420 #define YYACCEPT goto yyaccept 421 #define YYERROR goto yyerrlab 422 423 int 424 YYPARSE_DECL() 425 { 426 int yym, yyn, yystate; 427 #if YYDEBUG 428 const char *yys; 429 430 if ((yys = getenv("YYDEBUG")) != NULL) 431 { 432 yyn = *yys; 433 if (yyn >= '0' && yyn <= '9') 434 yydebug = yyn - '0'; 435 } 436 #endif 437 438 yym = 0; 439 yyn = 0; 440 yynerrs = 0; 441 yyerrflag = 0; 442 yychar = YYEMPTY; 443 yystate = 0; 444 445 #if YYPURE 446 memset(&yystack, 0, sizeof(yystack)); 447 #endif 448 449 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 450 yystack.s_mark = yystack.s_base; 451 yystack.l_mark = yystack.l_base; 452 yystate = 0; 453 *yystack.s_mark = 0; 454 455 yyloop: 456 if ((yyn = yydefred[yystate]) != 0) goto yyreduce; 457 if (yychar < 0) 458 { 459 yychar = YYLEX; 460 if (yychar < 0) yychar = YYEOF; 461 #if YYDEBUG 462 if (yydebug) 463 { 464 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 465 printf("%sdebug: state %d, reading %d (%s)\n", 466 YYPREFIX, yystate, yychar, yys); 467 } 468 #endif 469 } 470 if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 && 471 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar) 472 { 473 #if YYDEBUG 474 if (yydebug) 475 printf("%sdebug: state %d, shifting to state %d\n", 476 YYPREFIX, yystate, yytable[yyn]); 477 #endif 478 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 479 yystate = yytable[yyn]; 480 *++yystack.s_mark = yytable[yyn]; 481 *++yystack.l_mark = yylval; 482 yychar = YYEMPTY; 483 if (yyerrflag > 0) --yyerrflag; 484 goto yyloop; 485 } 486 if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 && 487 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar) 488 { 489 yyn = yytable[yyn]; 490 goto yyreduce; 491 } 492 if (yyerrflag != 0) goto yyinrecovery; 493 494 YYERROR_CALL("syntax error"); 495 496 goto yyerrlab; /* redundant goto avoids 'unused label' warning */ 497 yyerrlab: 498 ++yynerrs; 499 500 yyinrecovery: 501 if (yyerrflag < 3) 502 { 503 yyerrflag = 3; 504 for (;;) 505 { 506 if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 && 507 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE) 508 { 509 #if YYDEBUG 510 if (yydebug) 511 printf("%sdebug: state %d, error recovery shifting\ 512 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]); 513 #endif 514 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 515 yystate = yytable[yyn]; 516 *++yystack.s_mark = yytable[yyn]; 517 *++yystack.l_mark = yylval; 518 goto yyloop; 519 } 520 else 521 { 522 #if YYDEBUG 523 if (yydebug) 524 printf("%sdebug: error recovery discarding state %d\n", 525 YYPREFIX, *yystack.s_mark); 526 #endif 527 if (yystack.s_mark <= yystack.s_base) goto yyabort; 528 --yystack.s_mark; 529 --yystack.l_mark; 530 } 531 } 532 } 533 else 534 { 535 if (yychar == YYEOF) goto yyabort; 536 #if YYDEBUG 537 if (yydebug) 538 { 539 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 540 printf("%sdebug: state %d, error recovery discards token %d (%s)\n", 541 YYPREFIX, yystate, yychar, yys); 542 } 543 #endif 544 yychar = YYEMPTY; 545 goto yyloop; 546 } 547 548 yyreduce: 549 #if YYDEBUG 550 if (yydebug) 551 printf("%sdebug: state %d, reducing by rule %d (%s)\n", 552 YYPREFIX, yystate, yyn, yyrule[yyn]); 553 #endif 554 yym = yylen[yyn]; 555 if (yym > 0) 556 yyval = yystack.l_mark[1-yym]; 557 else 558 memset(&yyval, 0, sizeof yyval); 559 560 switch (yyn) 561 { 562 case 3: 563 #line 31 "calc_code_default.y" 564 { yyerrok ; } 565 break; 566 case 4: 567 #line 35 "calc_code_default.y" 568 { printf("%d\n",yystack.l_mark[0]);} 569 break; 570 case 5: 571 #line 37 "calc_code_default.y" 572 { regs[yystack.l_mark[-2]] = yystack.l_mark[0]; } 573 break; 574 case 6: 575 #line 41 "calc_code_default.y" 576 { yyval = yystack.l_mark[-1]; } 577 break; 578 case 7: 579 #line 43 "calc_code_default.y" 580 { yyval = yystack.l_mark[-2] + yystack.l_mark[0]; } 581 break; 582 case 8: 583 #line 45 "calc_code_default.y" 584 { yyval = yystack.l_mark[-2] - yystack.l_mark[0]; } 585 break; 586 case 9: 587 #line 47 "calc_code_default.y" 588 { yyval = yystack.l_mark[-2] * yystack.l_mark[0]; } 589 break; 590 case 10: 591 #line 49 "calc_code_default.y" 592 { yyval = yystack.l_mark[-2] / yystack.l_mark[0]; } 593 break; 594 case 11: 595 #line 51 "calc_code_default.y" 596 { yyval = yystack.l_mark[-2] % yystack.l_mark[0]; } 597 break; 598 case 12: 599 #line 53 "calc_code_default.y" 600 { yyval = yystack.l_mark[-2] & yystack.l_mark[0]; } 601 break; 602 case 13: 603 #line 55 "calc_code_default.y" 604 { yyval = yystack.l_mark[-2] | yystack.l_mark[0]; } 605 break; 606 case 14: 607 #line 57 "calc_code_default.y" 608 { yyval = - yystack.l_mark[0]; } 609 break; 610 case 15: 611 #line 59 "calc_code_default.y" 612 { yyval = regs[yystack.l_mark[0]]; } 613 break; 614 case 17: 615 #line 64 "calc_code_default.y" 616 { yyval = yystack.l_mark[0]; base = (yystack.l_mark[0]==0) ? 8 : 10; } 617 break; 618 case 18: 619 #line 66 "calc_code_default.y" 620 { yyval = base * yystack.l_mark[-1] + yystack.l_mark[0]; } 621 break; 622 #line 623 "calc_code_default.tab.c" 623 } 624 yystack.s_mark -= yym; 625 yystate = *yystack.s_mark; 626 yystack.l_mark -= yym; 627 yym = yylhs[yyn]; 628 if (yystate == 0 && yym == 0) 629 { 630 #if YYDEBUG 631 if (yydebug) 632 printf("%sdebug: after reduction, shifting from state 0 to\ 633 state %d\n", YYPREFIX, YYFINAL); 634 #endif 635 yystate = YYFINAL; 636 *++yystack.s_mark = YYFINAL; 637 *++yystack.l_mark = yyval; 638 if (yychar < 0) 639 { 640 yychar = YYLEX; 641 if (yychar < 0) yychar = YYEOF; 642 #if YYDEBUG 643 if (yydebug) 644 { 645 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 646 printf("%sdebug: state %d, reading %d (%s)\n", 647 YYPREFIX, YYFINAL, yychar, yys); 648 } 649 #endif 650 } 651 if (yychar == YYEOF) goto yyaccept; 652 goto yyloop; 653 } 654 if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 && 655 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate) 656 yystate = yytable[yyn]; 657 else 658 yystate = yydgoto[yym]; 659 #if YYDEBUG 660 if (yydebug) 661 printf("%sdebug: after reduction, shifting from state %d \ 662 to state %d\n", YYPREFIX, *yystack.s_mark, yystate); 663 #endif 664 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 665 *++yystack.s_mark = (YYINT) yystate; 666 *++yystack.l_mark = yyval; 667 goto yyloop; 668 669 yyoverflow: 670 YYERROR_CALL("yacc stack overflow"); 671 672 yyabort: 673 yyfreestack(&yystack); 674 return (1); 675 676 yyaccept: 677 yyfreestack(&yystack); 678 return (0); 679 } 680