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 quote_calc4_parse 19 #endif /* yyparse */ 20 21 #ifndef yylex 22 #define yylex quote_calc4_lex 23 #endif /* yylex */ 24 25 #ifndef yyerror 26 #define yyerror quote_calc4_error 27 #endif /* yyerror */ 28 29 #ifndef yychar 30 #define yychar quote_calc4_char 31 #endif /* yychar */ 32 33 #ifndef yyval 34 #define yyval quote_calc4_val 35 #endif /* yyval */ 36 37 #ifndef yylval 38 #define yylval quote_calc4_lval 39 #endif /* yylval */ 40 41 #ifndef yydebug 42 #define yydebug quote_calc4_debug 43 #endif /* yydebug */ 44 45 #ifndef yynerrs 46 #define yynerrs quote_calc4_nerrs 47 #endif /* yynerrs */ 48 49 #ifndef yyerrflag 50 #define yyerrflag quote_calc4_errflag 51 #endif /* yyerrflag */ 52 53 #ifndef yylhs 54 #define yylhs quote_calc4_lhs 55 #endif /* yylhs */ 56 57 #ifndef yylen 58 #define yylen quote_calc4_len 59 #endif /* yylen */ 60 61 #ifndef yydefred 62 #define yydefred quote_calc4_defred 63 #endif /* yydefred */ 64 65 #ifndef yydgoto 66 #define yydgoto quote_calc4_dgoto 67 #endif /* yydgoto */ 68 69 #ifndef yysindex 70 #define yysindex quote_calc4_sindex 71 #endif /* yysindex */ 72 73 #ifndef yyrindex 74 #define yyrindex quote_calc4_rindex 75 #endif /* yyrindex */ 76 77 #ifndef yygindex 78 #define yygindex quote_calc4_gindex 79 #endif /* yygindex */ 80 81 #ifndef yytable 82 #define yytable quote_calc4_table 83 #endif /* yytable */ 84 85 #ifndef yycheck 86 #define yycheck quote_calc4_check 87 #endif /* yycheck */ 88 89 #ifndef yyname 90 #define yyname quote_calc4_name 91 #endif /* yyname */ 92 93 #ifndef yyrule 94 #define yyrule quote_calc4_rule 95 #endif /* yyrule */ 96 #define YYPREFIX "quote_calc4_" 97 98 #define YYPURE 0 99 100 #line 2 "quote_calc4.y" 101 # include <stdio.h> 102 # include <ctype.h> 103 104 int regs[26]; 105 int base; 106 107 int yylex(void); 108 static void yyerror(const char *s); 109 110 #line 111 "quote_calc4-s.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 OP_ADD 257 150 #define OP_SUB 259 151 #define OP_MUL 261 152 #define OP_DIV 263 153 #define OP_MOD 265 154 #define OP_AND 267 155 #define DIGIT 269 156 #define LETTER 270 157 #define UMINUS 271 158 #define YYERRCODE 256 159 typedef int YYINT; 160 static const YYINT quote_calc4_lhs[] = { -1, 161 0, 0, 0, 1, 1, 2, 2, 2, 2, 2, 162 2, 2, 2, 2, 2, 2, 3, 3, 163 }; 164 static const YYINT quote_calc4_len[] = { 2, 165 0, 3, 3, 1, 3, 3, 3, 3, 3, 3, 166 3, 3, 3, 2, 1, 1, 1, 2, 167 }; 168 static const YYINT quote_calc4_defred[] = { 1, 169 0, 0, 0, 17, 0, 0, 0, 0, 0, 3, 170 15, 0, 0, 0, 2, 0, 0, 0, 0, 0, 171 0, 0, 18, 0, 6, 0, 0, 0, 0, 0, 172 0, 0, 173 }; 174 static const YYINT quote_calc4_dgoto[] = { 1, 175 7, 8, 9, 176 }; 177 static const YYINT quote_calc4_sindex[] = { 0, 178 -38, 4, -36, 0, -51, -36, 6, -121, -249, 0, 179 0, -243, -36, -23, 0, -36, -36, -36, -36, -36, 180 -36, -36, 0, -121, 0, -121, -121, -121, -121, -121, 181 -121, -243, 182 }; 183 static const YYINT quote_calc4_rindex[] = { 0, 184 0, 0, 0, 0, -9, 0, 0, 12, -10, 0, 185 0, -5, 0, 0, 0, 0, 0, 0, 0, 0, 186 0, 0, 0, 14, 0, -3, -2, -1, 1, 2, 187 3, -4, 188 }; 189 static const YYINT quote_calc4_gindex[] = { 0, 190 0, 42, 0, 191 }; 192 #define YYTABLESIZE 259 193 static const YYINT quote_calc4_table[] = { 16, 194 15, 6, 22, 6, 14, 13, 7, 8, 9, 13, 195 10, 11, 12, 10, 16, 15, 17, 25, 18, 23, 196 19, 4, 20, 5, 21, 0, 0, 0, 0, 0, 197 16, 0, 0, 0, 0, 14, 13, 7, 8, 9, 198 0, 10, 11, 12, 12, 0, 0, 14, 0, 0, 199 0, 0, 0, 0, 24, 0, 0, 26, 27, 28, 200 29, 30, 31, 32, 0, 0, 0, 0, 0, 0, 201 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 202 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 203 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 204 22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 205 0, 0, 0, 16, 15, 0, 0, 0, 14, 13, 206 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 207 0, 0, 0, 0, 0, 0, 16, 0, 17, 0, 208 18, 0, 19, 0, 20, 0, 21, 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, 0, 0, 0, 0, 0, 212 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 213 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 214 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 215 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 216 0, 3, 0, 3, 0, 0, 0, 0, 0, 0, 217 4, 5, 4, 11, 16, 0, 17, 0, 18, 0, 218 19, 0, 20, 0, 21, 0, 0, 16, 15, 16, 219 15, 16, 15, 16, 15, 16, 15, 16, 15, 220 }; 221 static const YYINT quote_calc4_check[] = { 10, 222 10, 40, 124, 40, 10, 10, 10, 10, 10, 61, 223 10, 10, 10, 10, 258, 10, 260, 41, 262, 269, 224 264, 10, 266, 10, 268, -1, -1, -1, -1, -1, 225 41, -1, -1, -1, -1, 41, 41, 41, 41, 41, 226 -1, 41, 41, 41, 3, -1, -1, 6, -1, -1, 227 -1, -1, -1, -1, 13, -1, -1, 16, 17, 18, 228 19, 20, 21, 22, -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, 232 124, -1, -1, -1, -1, -1, -1, -1, -1, -1, 233 -1, -1, -1, 124, 124, -1, -1, -1, 124, 124, 234 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 235 -1, -1, -1, -1, -1, -1, 258, -1, 260, -1, 236 262, -1, 264, -1, 266, -1, 268, -1, -1, -1, 237 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 238 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 239 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 240 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 241 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 242 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 243 -1, -1, -1, -1, -1, -1, -1, 256, -1, -1, 244 -1, 260, -1, 260, -1, -1, -1, -1, -1, -1, 245 269, 270, 269, 270, 258, -1, 260, -1, 262, -1, 246 264, -1, 266, -1, 268, -1, -1, 258, 258, 260, 247 260, 262, 262, 264, 264, 266, 266, 268, 268, 248 }; 249 #define YYFINAL 1 250 #ifndef YYDEBUG 251 #define YYDEBUG 0 252 #endif 253 #define YYMAXTOKEN 271 254 #define YYUNDFTOKEN 277 255 #define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a)) 256 #if YYDEBUG 257 static const char *const quote_calc4_name[] = { 258 259 "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, 260 0,0,0,0,0,0,"'%'","'&'",0,"'('","')'","'*'","'+'",0,"'-'",0,"'/'",0,0,0,0,0,0,0, 261 0,0,0,0,0,0,"'='",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 262 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'|'",0,0,0,0,0,0, 263 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 264 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 265 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 266 0,0,0,0,0,0,"OP_ADD","\"ADD-operator\"","OP_SUB","\"SUB-operator\"","OP_MUL", 267 "\"MUL-operator\"","OP_DIV","\"DIV-operator\"","OP_MOD","\"MOD-operator\"", 268 "OP_AND","\"AND-operator\"","DIGIT","LETTER","UMINUS",0,0,0,0,0, 269 "illegal-symbol", 270 }; 271 static const char *const quote_calc4_rule[] = { 272 "$accept : list", 273 "list :", 274 "list : list stat '\\n'", 275 "list : list error '\\n'", 276 "stat : expr", 277 "stat : LETTER '=' expr", 278 "expr : '(' expr ')'", 279 "expr : expr \"ADD-operator\" expr", 280 "expr : expr \"SUB-operator\" expr", 281 "expr : expr \"MUL-operator\" expr", 282 "expr : expr \"DIV-operator\" expr", 283 "expr : expr \"MOD-operator\" expr", 284 "expr : expr \"AND-operator\" expr", 285 "expr : expr '|' expr", 286 "expr : \"SUB-operator\" expr", 287 "expr : LETTER", 288 "expr : number", 289 "number : DIGIT", 290 "number : number DIGIT", 291 292 }; 293 #endif 294 295 int yydebug; 296 int yynerrs; 297 298 int yyerrflag; 299 int yychar; 300 YYSTYPE yyval; 301 YYSTYPE yylval; 302 303 /* define the initial stack-sizes */ 304 #ifdef YYSTACKSIZE 305 #undef YYMAXDEPTH 306 #define YYMAXDEPTH YYSTACKSIZE 307 #else 308 #ifdef YYMAXDEPTH 309 #define YYSTACKSIZE YYMAXDEPTH 310 #else 311 #define YYSTACKSIZE 10000 312 #define YYMAXDEPTH 10000 313 #endif 314 #endif 315 316 #define YYINITSTACKSIZE 200 317 318 typedef struct { 319 unsigned stacksize; 320 YYINT *s_base; 321 YYINT *s_mark; 322 YYINT *s_last; 323 YYSTYPE *l_base; 324 YYSTYPE *l_mark; 325 } YYSTACKDATA; 326 /* variables for the parser stack */ 327 static YYSTACKDATA yystack; 328 #line 73 "quote_calc4.y" 329 /* start of programs */ 330 331 int 332 main (void) 333 { 334 while(!feof(stdin)) { 335 yyparse(); 336 } 337 return 0; 338 } 339 340 static void 341 yyerror(const char *s) 342 { 343 fprintf(stderr, "%s\n", s); 344 } 345 346 int 347 yylex(void) { 348 /* lexical analysis routine */ 349 /* returns LETTER for a lower case letter, yylval = 0 through 25 */ 350 /* return DIGIT for a digit, yylval = 0 through 9 */ 351 /* all other characters are returned immediately */ 352 353 int c; 354 355 while( (c=getchar()) == ' ' ) { /* skip blanks */ } 356 357 /* c is now nonblank */ 358 359 if( islower( c )) { 360 yylval = c - 'a'; 361 return ( LETTER ); 362 } 363 if( isdigit( c )) { 364 yylval = c - '0'; 365 return ( DIGIT ); 366 } 367 return( c ); 368 } 369 #line 370 "quote_calc4-s.tab.c" 370 371 #if YYDEBUG 372 #include <stdio.h> /* needed for printf */ 373 #endif 374 375 #include <stdlib.h> /* needed for malloc, etc */ 376 #include <string.h> /* needed for memset */ 377 378 /* allocate initial stack or double stack size, up to YYMAXDEPTH */ 379 static int yygrowstack(YYSTACKDATA *data) 380 { 381 int i; 382 unsigned newsize; 383 YYINT *newss; 384 YYSTYPE *newvs; 385 386 if ((newsize = data->stacksize) == 0) 387 newsize = YYINITSTACKSIZE; 388 else if (newsize >= YYMAXDEPTH) 389 return YYENOMEM; 390 else if ((newsize *= 2) > YYMAXDEPTH) 391 newsize = YYMAXDEPTH; 392 393 i = (int) (data->s_mark - data->s_base); 394 newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss)); 395 if (newss == 0) 396 return YYENOMEM; 397 398 data->s_base = newss; 399 data->s_mark = newss + i; 400 401 newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs)); 402 if (newvs == 0) 403 return YYENOMEM; 404 405 data->l_base = newvs; 406 data->l_mark = newvs + i; 407 408 data->stacksize = newsize; 409 data->s_last = data->s_base + newsize - 1; 410 return 0; 411 } 412 413 #if YYPURE || defined(YY_NO_LEAKS) 414 static void yyfreestack(YYSTACKDATA *data) 415 { 416 free(data->s_base); 417 free(data->l_base); 418 memset(data, 0, sizeof(*data)); 419 } 420 #else 421 #define yyfreestack(data) /* nothing */ 422 #endif 423 424 #define YYABORT goto yyabort 425 #define YYREJECT goto yyabort 426 #define YYACCEPT goto yyaccept 427 #define YYERROR goto yyerrlab 428 429 int 430 YYPARSE_DECL() 431 { 432 int yym, yyn, yystate; 433 #if YYDEBUG 434 const char *yys; 435 436 if ((yys = getenv("YYDEBUG")) != 0) 437 { 438 yyn = *yys; 439 if (yyn >= '0' && yyn <= '9') 440 yydebug = yyn - '0'; 441 } 442 #endif 443 444 yynerrs = 0; 445 yyerrflag = 0; 446 yychar = YYEMPTY; 447 yystate = 0; 448 449 #if YYPURE 450 memset(&yystack, 0, sizeof(yystack)); 451 #endif 452 453 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 454 yystack.s_mark = yystack.s_base; 455 yystack.l_mark = yystack.l_base; 456 yystate = 0; 457 *yystack.s_mark = 0; 458 459 yyloop: 460 if ((yyn = yydefred[yystate]) != 0) goto yyreduce; 461 if (yychar < 0) 462 { 463 if ((yychar = YYLEX) < 0) yychar = YYEOF; 464 #if YYDEBUG 465 if (yydebug) 466 { 467 yys = yyname[YYTRANSLATE(yychar)]; 468 printf("%sdebug: state %d, reading %d (%s)\n", 469 YYPREFIX, yystate, yychar, yys); 470 } 471 #endif 472 } 473 if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 && 474 yyn <= YYTABLESIZE && yycheck[yyn] == yychar) 475 { 476 #if YYDEBUG 477 if (yydebug) 478 printf("%sdebug: state %d, shifting to state %d\n", 479 YYPREFIX, yystate, yytable[yyn]); 480 #endif 481 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) 482 { 483 goto yyoverflow; 484 } 485 yystate = yytable[yyn]; 486 *++yystack.s_mark = yytable[yyn]; 487 *++yystack.l_mark = yylval; 488 yychar = YYEMPTY; 489 if (yyerrflag > 0) --yyerrflag; 490 goto yyloop; 491 } 492 if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 && 493 yyn <= YYTABLESIZE && yycheck[yyn] == yychar) 494 { 495 yyn = yytable[yyn]; 496 goto yyreduce; 497 } 498 if (yyerrflag) goto yyinrecovery; 499 500 YYERROR_CALL("syntax error"); 501 502 goto yyerrlab; 503 504 yyerrlab: 505 ++yynerrs; 506 507 yyinrecovery: 508 if (yyerrflag < 3) 509 { 510 yyerrflag = 3; 511 for (;;) 512 { 513 if ((yyn = yysindex[*yystack.s_mark]) && (yyn += YYERRCODE) >= 0 && 514 yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE) 515 { 516 #if YYDEBUG 517 if (yydebug) 518 printf("%sdebug: state %d, error recovery shifting\ 519 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]); 520 #endif 521 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) 522 { 523 goto yyoverflow; 524 } 525 yystate = yytable[yyn]; 526 *++yystack.s_mark = yytable[yyn]; 527 *++yystack.l_mark = yylval; 528 goto yyloop; 529 } 530 else 531 { 532 #if YYDEBUG 533 if (yydebug) 534 printf("%sdebug: error recovery discarding state %d\n", 535 YYPREFIX, *yystack.s_mark); 536 #endif 537 if (yystack.s_mark <= yystack.s_base) goto yyabort; 538 --yystack.s_mark; 539 --yystack.l_mark; 540 } 541 } 542 } 543 else 544 { 545 if (yychar == YYEOF) goto yyabort; 546 #if YYDEBUG 547 if (yydebug) 548 { 549 yys = yyname[YYTRANSLATE(yychar)]; 550 printf("%sdebug: state %d, error recovery discards token %d (%s)\n", 551 YYPREFIX, yystate, yychar, yys); 552 } 553 #endif 554 yychar = YYEMPTY; 555 goto yyloop; 556 } 557 558 yyreduce: 559 #if YYDEBUG 560 if (yydebug) 561 printf("%sdebug: state %d, reducing by rule %d (%s)\n", 562 YYPREFIX, yystate, yyn, yyrule[yyn]); 563 #endif 564 yym = yylen[yyn]; 565 if (yym) 566 yyval = yystack.l_mark[1-yym]; 567 else 568 memset(&yyval, 0, sizeof yyval); 569 switch (yyn) 570 { 571 case 3: 572 #line 35 "quote_calc4.y" 573 { yyerrok ; } 574 break; 575 case 4: 576 #line 39 "quote_calc4.y" 577 { printf("%d\n",yystack.l_mark[0]);} 578 break; 579 case 5: 580 #line 41 "quote_calc4.y" 581 { regs[yystack.l_mark[-2]] = yystack.l_mark[0]; } 582 break; 583 case 6: 584 #line 45 "quote_calc4.y" 585 { yyval = yystack.l_mark[-1]; } 586 break; 587 case 7: 588 #line 47 "quote_calc4.y" 589 { yyval = yystack.l_mark[-2] + yystack.l_mark[0]; } 590 break; 591 case 8: 592 #line 49 "quote_calc4.y" 593 { yyval = yystack.l_mark[-2] - yystack.l_mark[0]; } 594 break; 595 case 9: 596 #line 51 "quote_calc4.y" 597 { yyval = yystack.l_mark[-2] * yystack.l_mark[0]; } 598 break; 599 case 10: 600 #line 53 "quote_calc4.y" 601 { yyval = yystack.l_mark[-2] / yystack.l_mark[0]; } 602 break; 603 case 11: 604 #line 55 "quote_calc4.y" 605 { yyval = yystack.l_mark[-2] % yystack.l_mark[0]; } 606 break; 607 case 12: 608 #line 57 "quote_calc4.y" 609 { yyval = yystack.l_mark[-2] & yystack.l_mark[0]; } 610 break; 611 case 13: 612 #line 59 "quote_calc4.y" 613 { yyval = yystack.l_mark[-2] | yystack.l_mark[0]; } 614 break; 615 case 14: 616 #line 61 "quote_calc4.y" 617 { yyval = - yystack.l_mark[0]; } 618 break; 619 case 15: 620 #line 63 "quote_calc4.y" 621 { yyval = regs[yystack.l_mark[0]]; } 622 break; 623 case 17: 624 #line 68 "quote_calc4.y" 625 { yyval = yystack.l_mark[0]; base = (yystack.l_mark[0]==0) ? 8 : 10; } 626 break; 627 case 18: 628 #line 70 "quote_calc4.y" 629 { yyval = base * yystack.l_mark[-1] + yystack.l_mark[0]; } 630 break; 631 #line 632 "quote_calc4-s.tab.c" 632 } 633 yystack.s_mark -= yym; 634 yystate = *yystack.s_mark; 635 yystack.l_mark -= yym; 636 yym = yylhs[yyn]; 637 if (yystate == 0 && yym == 0) 638 { 639 #if YYDEBUG 640 if (yydebug) 641 printf("%sdebug: after reduction, shifting from state 0 to\ 642 state %d\n", YYPREFIX, YYFINAL); 643 #endif 644 yystate = YYFINAL; 645 *++yystack.s_mark = YYFINAL; 646 *++yystack.l_mark = yyval; 647 if (yychar < 0) 648 { 649 if ((yychar = YYLEX) < 0) yychar = YYEOF; 650 #if YYDEBUG 651 if (yydebug) 652 { 653 yys = yyname[YYTRANSLATE(yychar)]; 654 printf("%sdebug: state %d, reading %d (%s)\n", 655 YYPREFIX, YYFINAL, yychar, yys); 656 } 657 #endif 658 } 659 if (yychar == YYEOF) goto yyaccept; 660 goto yyloop; 661 } 662 if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 && 663 yyn <= YYTABLESIZE && yycheck[yyn] == yystate) 664 yystate = yytable[yyn]; 665 else 666 yystate = yydgoto[yym]; 667 #if YYDEBUG 668 if (yydebug) 669 printf("%sdebug: after reduction, shifting from state %d \ 670 to state %d\n", YYPREFIX, *yystack.s_mark, yystate); 671 #endif 672 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) 673 { 674 goto yyoverflow; 675 } 676 *++yystack.s_mark = (YYINT) yystate; 677 *++yystack.l_mark = yyval; 678 goto yyloop; 679 680 yyoverflow: 681 YYERROR_CALL("yacc stack overflow"); 682 683 yyabort: 684 yyfreestack(&yystack); 685 return (1); 686 687 yyaccept: 688 yyfreestack(&yystack); 689 return (0); 690 } 691