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" 101 int yylex(void); 102 static 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. */ 107 typedef 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 139 140 extern int YYPARSE_DECL(); 141 142 #define YYERRCODE 256 143 typedef int YYINT; 144 static const YYINT err_syntax18_lhs[] = { -1, 145 0, 146 }; 147 static const YYINT err_syntax18_len[] = { 2, 148 3, 149 }; 150 static const YYINT err_syntax18_defred[] = { 0, 151 0, 0, 0, 1, 152 }; 153 static const YYINT err_syntax18_dgoto[] = { 2, 154 }; 155 static const YYINT err_syntax18_sindex[] = { -40, 156 -40, 0, -39, 0, 157 }; 158 static const YYINT err_syntax18_rindex[] = { 0, 159 0, 0, 0, 0, 160 }; 161 static const YYINT err_syntax18_gindex[] = { 2, 162 }; 163 #define YYTABLESIZE 3 164 static const YYINT err_syntax18_table[] = { 1, 165 0, 4, 3, 166 }; 167 static 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 178 static 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, 181 0,0,0,0,0,0,"'('","')'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 182 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 183 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 184 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 185 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 186 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"illegal-symbol", 187 }; 188 static const char *const err_syntax18_rule[] = { 189 "$accept : expr", 190 "expr : '(' expr ')'", 191 192 }; 193 #endif 194 195 int yydebug; 196 int yynerrs; 197 198 int yyerrflag; 199 int yychar; 200 YYSTYPE yyval; 201 YYSTYPE 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 200 217 218 typedef 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 */ 227 static YYSTACKDATA yystack; 228 #line 13 "err_syntax18.y" 229 230 #include <stdio.h> 231 232 int 233 main(void) 234 { 235 printf("yyparse() = %d\n", yyparse()); 236 return 0; 237 } 238 239 int 240 yylex(void) 241 { 242 return -1; 243 } 244 245 static void 246 yyerror(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 */ 260 static 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) 295 static 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 309 310 int 311 YYPARSE_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; 341 342 yyloop: 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 */ 384 yyerrlab: 385 ++yynerrs; 386 387 yyinrecovery: 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 } 434 435 yyreduce: 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 { 449 case 1: 450 #line 9 "err_syntax18.y" 451 { yyval = yystack.l_mark[1]; } 452 break; 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 \ 493 to 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; 499 500 yyoverflow: 501 YYERROR_CALL("yacc stack overflow"); 502 503 yyabort: 504 yyfreestack(&yystack); 505 return (1); 506 507 yyaccept: 508 yyfreestack(&yystack); 509 return (0); 510 } 511