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 err_syntax18_parse 19#endif /* yyparse */ 20 21#ifndef yylex 22#define yylex err_syntax18_lex 23#endif /* yylex */ 24 25#ifndef yyerror 26#define yyerror err_syntax18_error 27#endif /* yyerror */ 28 29#ifndef yychar 30#define yychar err_syntax18_char 31#endif /* yychar */ 32 33#ifndef yyval 34#define yyval err_syntax18_val 35#endif /* yyval */ 36 37#ifndef yylval 38#define yylval err_syntax18_lval 39#endif /* yylval */ 40 41#ifndef yydebug 42#define yydebug err_syntax18_debug 43#endif /* yydebug */ 44 45#ifndef yynerrs 46#define yynerrs err_syntax18_nerrs 47#endif /* yynerrs */ 48 49#ifndef yyerrflag 50#define yyerrflag err_syntax18_errflag 51#endif /* yyerrflag */ 52 53#ifndef yylhs 54#define yylhs err_syntax18_lhs 55#endif /* yylhs */ 56 57#ifndef yylen 58#define yylen err_syntax18_len 59#endif /* yylen */ 60 61#ifndef yydefred 62#define yydefred err_syntax18_defred 63#endif /* yydefred */ 64 65#ifndef yydgoto 66#define yydgoto err_syntax18_dgoto 67#endif /* yydgoto */ 68 69#ifndef yysindex 70#define yysindex err_syntax18_sindex 71#endif /* yysindex */ 72 73#ifndef yyrindex 74#define yyrindex err_syntax18_rindex 75#endif /* yyrindex */ 76 77#ifndef yygindex 78#define yygindex err_syntax18_gindex 79#endif /* yygindex */ 80 81#ifndef yytable 82#define yytable err_syntax18_table 83#endif /* yytable */ 84 85#ifndef yycheck 86#define yycheck err_syntax18_check 87#endif /* yycheck */ 88 89#ifndef yyname 90#define yyname err_syntax18_name 91#endif /* yyname */ 92 93#ifndef yyrule 94#define yyrule err_syntax18_rule 95#endif /* yyrule */ 96#define YYPREFIX "err_syntax18_" 97 98#define YYPURE 0 99 100#line 2 "err_syntax18.y" 101int yylex(void); 102static void yyerror(const char *); 103#line 104 "err_syntax18.tab.c" 104 105#if ! defined(YYSTYPE) && ! defined(YYSTYPE_IS_DECLARED) 106/* Default: YYSTYPE is the semantic value type. */ 107typedef int YYSTYPE; 108# define YYSTYPE_IS_DECLARED 1 109#endif 110 111/* compatibility with bison */ 112#ifdef YYPARSE_PARAM 113/* compatibility with FreeBSD */ 114# ifdef YYPARSE_PARAM_TYPE 115# define YYPARSE_DECL() yyparse(YYPARSE_PARAM_TYPE YYPARSE_PARAM) 116# else 117# define YYPARSE_DECL() yyparse(void *YYPARSE_PARAM) 118# endif 119#else 120# define YYPARSE_DECL() yyparse(void) 121#endif 122 123/* Parameters sent to lex. */ 124#ifdef YYLEX_PARAM 125# define YYLEX_DECL() yylex(void *YYLEX_PARAM) 126# define YYLEX yylex(YYLEX_PARAM) 127#else 128# define YYLEX_DECL() yylex(void) 129# define YYLEX yylex() 130#endif 131 132/* Parameters sent to yyerror. */ 133#ifndef YYERROR_DECL 134#define YYERROR_DECL() yyerror(const char *s) 135#endif 136#ifndef YYERROR_CALL 137#define YYERROR_CALL(msg) yyerror(msg) 138#endif 139 140extern int YYPARSE_DECL(); 141 142#define YYERRCODE 256 143typedef int YYINT; 144static const YYINT err_syntax18_lhs[] = { -1, 145 0, 146}; 147static const YYINT err_syntax18_len[] = { 2, 148 3, 149}; 150static const YYINT err_syntax18_defred[] = { 0, 151 0, 0, 0, 1, 152}; 153static const YYINT err_syntax18_dgoto[] = { 2, 154}; 155static const YYINT err_syntax18_sindex[] = { -40, 156 -40, 0, -39, 0, 157}; 158static const YYINT err_syntax18_rindex[] = { 0, 159 0, 0, 0, 0, 160}; 161static const YYINT err_syntax18_gindex[] = { 2, 162}; 163#define YYTABLESIZE 3 164static const YYINT err_syntax18_table[] = { 1, 165 0, 4, 3, 166}; 167static const YYINT err_syntax18_check[] = { 40, 168 -1, 41, 1, 169}; 170#define YYFINAL 2 171#ifndef YYDEBUG 172#define YYDEBUG 0 173#endif 174#define YYMAXTOKEN 256 175#define YYUNDFTOKEN 259 176#define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a)) 177#if YYDEBUG 178static const char *const err_syntax18_name[] = { 179 180"end-of-file",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1810,0,0,0,0,0,"'('","')'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1820,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1830,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1840,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1850,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1860,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"illegal-symbol", 187}; 188static const char *const err_syntax18_rule[] = { 189"$accept : expr", 190"expr : '(' expr ')'", 191 192}; 193#endif 194 195int yydebug; 196int yynerrs; 197 198int yyerrflag; 199int yychar; 200YYSTYPE yyval; 201YYSTYPE yylval; 202 203/* define the initial stack-sizes */ 204#ifdef YYSTACKSIZE 205#undef YYMAXDEPTH 206#define YYMAXDEPTH YYSTACKSIZE 207#else 208#ifdef YYMAXDEPTH 209#define YYSTACKSIZE YYMAXDEPTH 210#else 211#define YYSTACKSIZE 10000 212#define YYMAXDEPTH 10000 213#endif 214#endif 215 216#define YYINITSTACKSIZE 200 217 218typedef struct { 219 unsigned stacksize; 220 YYINT *s_base; 221 YYINT *s_mark; 222 YYINT *s_last; 223 YYSTYPE *l_base; 224 YYSTYPE *l_mark; 225} YYSTACKDATA; 226/* variables for the parser stack */ 227static YYSTACKDATA yystack; 228#line 13 "err_syntax18.y" 229 230#include <stdio.h> 231 232int 233main(void) 234{ 235 printf("yyparse() = %d\n", yyparse()); 236 return 0; 237} 238 239int 240yylex(void) 241{ 242 return -1; 243} 244 245static void 246yyerror(const char* s) 247{ 248 printf("%s\n", s); 249} 250#line 251 "err_syntax18.tab.c" 251 252#if YYDEBUG 253#include <stdio.h> /* needed for printf */ 254#endif 255 256#include <stdlib.h> /* needed for malloc, etc */ 257#include <string.h> /* needed for memset */ 258 259/* allocate initial stack or double stack size, up to YYMAXDEPTH */ 260static int yygrowstack(YYSTACKDATA *data) 261{ 262 int i; 263 unsigned newsize; 264 YYINT *newss; 265 YYSTYPE *newvs; 266 267 if ((newsize = data->stacksize) == 0) 268 newsize = YYINITSTACKSIZE; 269 else if (newsize >= YYMAXDEPTH) 270 return YYENOMEM; 271 else if ((newsize *= 2) > YYMAXDEPTH) 272 newsize = YYMAXDEPTH; 273 274 i = (int) (data->s_mark - data->s_base); 275 newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss)); 276 if (newss == 0) 277 return YYENOMEM; 278 279 data->s_base = newss; 280 data->s_mark = newss + i; 281 282 newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs)); 283 if (newvs == 0) 284 return YYENOMEM; 285 286 data->l_base = newvs; 287 data->l_mark = newvs + i; 288 289 data->stacksize = newsize; 290 data->s_last = data->s_base + newsize - 1; 291 return 0; 292} 293 294#if YYPURE || defined(YY_NO_LEAKS) 295static void yyfreestack(YYSTACKDATA *data) 296{ 297 free(data->s_base); 298 free(data->l_base); 299 memset(data, 0, sizeof(*data)); 300} 301#else 302#define yyfreestack(data) /* nothing */ 303#endif 304 305#define YYABORT goto yyabort 306#define YYREJECT goto yyabort 307#define YYACCEPT goto yyaccept 308#define YYERROR goto yyerrlab 309 310int 311YYPARSE_DECL() 312{ 313 int yym, yyn, yystate; 314#if YYDEBUG 315 const char *yys; 316 317 if ((yys = getenv("YYDEBUG")) != 0) 318 { 319 yyn = *yys; 320 if (yyn >= '0' && yyn <= '9') 321 yydebug = yyn - '0'; 322 } 323#endif 324 325 yym = 0; 326 yyn = 0; 327 yynerrs = 0; 328 yyerrflag = 0; 329 yychar = YYEMPTY; 330 yystate = 0; 331 332#if YYPURE 333 memset(&yystack, 0, sizeof(yystack)); 334#endif 335 336 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 337 yystack.s_mark = yystack.s_base; 338 yystack.l_mark = yystack.l_base; 339 yystate = 0; 340 *yystack.s_mark = 0; 341 342yyloop: 343 if ((yyn = yydefred[yystate]) != 0) goto yyreduce; 344 if (yychar < 0) 345 { 346 yychar = YYLEX; 347 if (yychar < 0) yychar = YYEOF; 348#if YYDEBUG 349 if (yydebug) 350 { 351 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 352 printf("%sdebug: state %d, reading %d (%s)\n", 353 YYPREFIX, yystate, yychar, yys); 354 } 355#endif 356 } 357 if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 && 358 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar) 359 { 360#if YYDEBUG 361 if (yydebug) 362 printf("%sdebug: state %d, shifting to state %d\n", 363 YYPREFIX, yystate, yytable[yyn]); 364#endif 365 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 366 yystate = yytable[yyn]; 367 *++yystack.s_mark = yytable[yyn]; 368 *++yystack.l_mark = yylval; 369 yychar = YYEMPTY; 370 if (yyerrflag > 0) --yyerrflag; 371 goto yyloop; 372 } 373 if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 && 374 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar) 375 { 376 yyn = yytable[yyn]; 377 goto yyreduce; 378 } 379 if (yyerrflag != 0) goto yyinrecovery; 380 381 YYERROR_CALL("syntax error"); 382 383 goto yyerrlab; /* redundant goto avoids 'unused label' warning */ 384yyerrlab: 385 ++yynerrs; 386 387yyinrecovery: 388 if (yyerrflag < 3) 389 { 390 yyerrflag = 3; 391 for (;;) 392 { 393 if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 && 394 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE) 395 { 396#if YYDEBUG 397 if (yydebug) 398 printf("%sdebug: state %d, error recovery shifting\ 399 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]); 400#endif 401 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 402 yystate = yytable[yyn]; 403 *++yystack.s_mark = yytable[yyn]; 404 *++yystack.l_mark = yylval; 405 goto yyloop; 406 } 407 else 408 { 409#if YYDEBUG 410 if (yydebug) 411 printf("%sdebug: error recovery discarding state %d\n", 412 YYPREFIX, *yystack.s_mark); 413#endif 414 if (yystack.s_mark <= yystack.s_base) goto yyabort; 415 --yystack.s_mark; 416 --yystack.l_mark; 417 } 418 } 419 } 420 else 421 { 422 if (yychar == YYEOF) goto yyabort; 423#if YYDEBUG 424 if (yydebug) 425 { 426 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 427 printf("%sdebug: state %d, error recovery discards token %d (%s)\n", 428 YYPREFIX, yystate, yychar, yys); 429 } 430#endif 431 yychar = YYEMPTY; 432 goto yyloop; 433 } 434 435yyreduce: 436#if YYDEBUG 437 if (yydebug) 438 printf("%sdebug: state %d, reducing by rule %d (%s)\n", 439 YYPREFIX, yystate, yyn, yyrule[yyn]); 440#endif 441 yym = yylen[yyn]; 442 if (yym > 0) 443 yyval = yystack.l_mark[1-yym]; 444 else 445 memset(&yyval, 0, sizeof yyval); 446 447 switch (yyn) 448 { 449case 1: 450#line 9 "err_syntax18.y" 451 { yyval = yystack.l_mark[1]; } 452break; 453#line 454 "err_syntax18.tab.c" 454 } 455 yystack.s_mark -= yym; 456 yystate = *yystack.s_mark; 457 yystack.l_mark -= yym; 458 yym = yylhs[yyn]; 459 if (yystate == 0 && yym == 0) 460 { 461#if YYDEBUG 462 if (yydebug) 463 printf("%sdebug: after reduction, shifting from state 0 to\ 464 state %d\n", YYPREFIX, YYFINAL); 465#endif 466 yystate = YYFINAL; 467 *++yystack.s_mark = YYFINAL; 468 *++yystack.l_mark = yyval; 469 if (yychar < 0) 470 { 471 yychar = YYLEX; 472 if (yychar < 0) yychar = YYEOF; 473#if YYDEBUG 474 if (yydebug) 475 { 476 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 477 printf("%sdebug: state %d, reading %d (%s)\n", 478 YYPREFIX, YYFINAL, yychar, yys); 479 } 480#endif 481 } 482 if (yychar == YYEOF) goto yyaccept; 483 goto yyloop; 484 } 485 if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 && 486 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate) 487 yystate = yytable[yyn]; 488 else 489 yystate = yydgoto[yym]; 490#if YYDEBUG 491 if (yydebug) 492 printf("%sdebug: after reduction, shifting from state %d \ 493to state %d\n", YYPREFIX, *yystack.s_mark, yystate); 494#endif 495 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 496 *++yystack.s_mark = (YYINT) yystate; 497 *++yystack.l_mark = yyval; 498 goto yyloop; 499 500yyoverflow: 501 YYERROR_CALL("yacc stack overflow"); 502 503yyabort: 504 yyfreestack(&yystack); 505 return (1); 506 507yyaccept: 508 yyfreestack(&yystack); 509 return (0); 510} 511