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 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 #if YYDEBUG 196 int yydebug; 197 #endif 198 199 int yyerrflag; 200 int yychar; 201 YYSTYPE yyval; 202 YYSTYPE yylval; 203 int yynerrs; 204 205 /* define the initial stack-sizes */ 206 #ifdef YYSTACKSIZE 207 #undef YYMAXDEPTH 208 #define YYMAXDEPTH YYSTACKSIZE 209 #else 210 #ifdef YYMAXDEPTH 211 #define YYSTACKSIZE YYMAXDEPTH 212 #else 213 #define YYSTACKSIZE 10000 214 #define YYMAXDEPTH 10000 215 #endif 216 #endif 217 218 #define YYINITSTACKSIZE 200 219 220 typedef struct { 221 unsigned stacksize; 222 YYINT *s_base; 223 YYINT *s_mark; 224 YYINT *s_last; 225 YYSTYPE *l_base; 226 YYSTYPE *l_mark; 227 } YYSTACKDATA; 228 /* variables for the parser stack */ 229 static YYSTACKDATA yystack; 230 #line 13 "err_syntax18.y" 231 232 #include <stdio.h> 233 234 int 235 main(void) 236 { 237 printf("yyparse() = %d\n", yyparse()); 238 return 0; 239 } 240 241 int 242 yylex(void) 243 { 244 return -1; 245 } 246 247 static void 248 yyerror(const char* s) 249 { 250 printf("%s\n", s); 251 } 252 #line 253 "err_syntax18.tab.c" 253 254 #if YYDEBUG 255 #include <stdio.h> /* needed for printf */ 256 #endif 257 258 #include <stdlib.h> /* needed for malloc, etc */ 259 #include <string.h> /* needed for memset */ 260 261 /* allocate initial stack or double stack size, up to YYMAXDEPTH */ 262 static int yygrowstack(YYSTACKDATA *data) 263 { 264 int i; 265 unsigned newsize; 266 YYINT *newss; 267 YYSTYPE *newvs; 268 269 if ((newsize = data->stacksize) == 0) 270 newsize = YYINITSTACKSIZE; 271 else if (newsize >= YYMAXDEPTH) 272 return YYENOMEM; 273 else if ((newsize *= 2) > YYMAXDEPTH) 274 newsize = YYMAXDEPTH; 275 276 i = (int) (data->s_mark - data->s_base); 277 newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss)); 278 if (newss == NULL) 279 return YYENOMEM; 280 281 data->s_base = newss; 282 data->s_mark = newss + i; 283 284 newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs)); 285 if (newvs == NULL) 286 return YYENOMEM; 287 288 data->l_base = newvs; 289 data->l_mark = newvs + i; 290 291 data->stacksize = newsize; 292 data->s_last = data->s_base + newsize - 1; 293 return 0; 294 } 295 296 #if YYPURE || defined(YY_NO_LEAKS) 297 static void yyfreestack(YYSTACKDATA *data) 298 { 299 free(data->s_base); 300 free(data->l_base); 301 memset(data, 0, sizeof(*data)); 302 } 303 #else 304 #define yyfreestack(data) /* nothing */ 305 #endif 306 307 #define YYABORT goto yyabort 308 #define YYREJECT goto yyabort 309 #define YYACCEPT goto yyaccept 310 #define YYERROR goto yyerrlab 311 312 int 313 YYPARSE_DECL() 314 { 315 int yym, yyn, yystate; 316 #if YYDEBUG 317 const char *yys; 318 319 if ((yys = getenv("YYDEBUG")) != NULL) 320 { 321 yyn = *yys; 322 if (yyn >= '0' && yyn <= '9') 323 yydebug = yyn - '0'; 324 } 325 #endif 326 327 /* yym is set below */ 328 /* yyn is set below */ 329 yynerrs = 0; 330 yyerrflag = 0; 331 yychar = YYEMPTY; 332 yystate = 0; 333 334 #if YYPURE 335 memset(&yystack, 0, sizeof(yystack)); 336 #endif 337 338 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 339 yystack.s_mark = yystack.s_base; 340 yystack.l_mark = yystack.l_base; 341 yystate = 0; 342 *yystack.s_mark = 0; 343 344 yyloop: 345 if ((yyn = yydefred[yystate]) != 0) goto yyreduce; 346 if (yychar < 0) 347 { 348 yychar = YYLEX; 349 if (yychar < 0) yychar = YYEOF; 350 #if YYDEBUG 351 if (yydebug) 352 { 353 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 354 printf("%sdebug: state %d, reading %d (%s)\n", 355 YYPREFIX, yystate, yychar, yys); 356 } 357 #endif 358 } 359 if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 && 360 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar) 361 { 362 #if YYDEBUG 363 if (yydebug) 364 printf("%sdebug: state %d, shifting to state %d\n", 365 YYPREFIX, yystate, yytable[yyn]); 366 #endif 367 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 368 yystate = yytable[yyn]; 369 *++yystack.s_mark = yytable[yyn]; 370 *++yystack.l_mark = yylval; 371 yychar = YYEMPTY; 372 if (yyerrflag > 0) --yyerrflag; 373 goto yyloop; 374 } 375 if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 && 376 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar) 377 { 378 yyn = yytable[yyn]; 379 goto yyreduce; 380 } 381 if (yyerrflag != 0) goto yyinrecovery; 382 383 YYERROR_CALL("syntax error"); 384 385 goto yyerrlab; /* redundant goto avoids 'unused label' warning */ 386 yyerrlab: 387 ++yynerrs; 388 389 yyinrecovery: 390 if (yyerrflag < 3) 391 { 392 yyerrflag = 3; 393 for (;;) 394 { 395 if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 && 396 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE) 397 { 398 #if YYDEBUG 399 if (yydebug) 400 printf("%sdebug: state %d, error recovery shifting\ 401 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]); 402 #endif 403 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 404 yystate = yytable[yyn]; 405 *++yystack.s_mark = yytable[yyn]; 406 *++yystack.l_mark = yylval; 407 goto yyloop; 408 } 409 else 410 { 411 #if YYDEBUG 412 if (yydebug) 413 printf("%sdebug: error recovery discarding state %d\n", 414 YYPREFIX, *yystack.s_mark); 415 #endif 416 if (yystack.s_mark <= yystack.s_base) goto yyabort; 417 --yystack.s_mark; 418 --yystack.l_mark; 419 } 420 } 421 } 422 else 423 { 424 if (yychar == YYEOF) goto yyabort; 425 #if YYDEBUG 426 if (yydebug) 427 { 428 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 429 printf("%sdebug: state %d, error recovery discards token %d (%s)\n", 430 YYPREFIX, yystate, yychar, yys); 431 } 432 #endif 433 yychar = YYEMPTY; 434 goto yyloop; 435 } 436 437 yyreduce: 438 #if YYDEBUG 439 if (yydebug) 440 printf("%sdebug: state %d, reducing by rule %d (%s)\n", 441 YYPREFIX, yystate, yyn, yyrule[yyn]); 442 #endif 443 yym = yylen[yyn]; 444 if (yym > 0) 445 yyval = yystack.l_mark[1-yym]; 446 else 447 memset(&yyval, 0, sizeof yyval); 448 449 switch (yyn) 450 { 451 case 1: 452 #line 9 "err_syntax18.y" 453 { yyval = yystack.l_mark[1]; } 454 #line 455 "err_syntax18.tab.c" 455 break; 456 #line 457 "err_syntax18.tab.c" 457 } 458 yystack.s_mark -= yym; 459 yystate = *yystack.s_mark; 460 yystack.l_mark -= yym; 461 yym = yylhs[yyn]; 462 if (yystate == 0 && yym == 0) 463 { 464 #if YYDEBUG 465 if (yydebug) 466 printf("%sdebug: after reduction, shifting from state 0 to\ 467 state %d\n", YYPREFIX, YYFINAL); 468 #endif 469 yystate = YYFINAL; 470 *++yystack.s_mark = YYFINAL; 471 *++yystack.l_mark = yyval; 472 if (yychar < 0) 473 { 474 yychar = YYLEX; 475 if (yychar < 0) yychar = YYEOF; 476 #if YYDEBUG 477 if (yydebug) 478 { 479 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 480 printf("%sdebug: state %d, reading %d (%s)\n", 481 YYPREFIX, YYFINAL, yychar, yys); 482 } 483 #endif 484 } 485 if (yychar == YYEOF) goto yyaccept; 486 goto yyloop; 487 } 488 if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 && 489 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate) 490 yystate = yytable[yyn]; 491 else 492 yystate = yydgoto[yym]; 493 #if YYDEBUG 494 if (yydebug) 495 printf("%sdebug: after reduction, shifting from state %d \ 496 to state %d\n", YYPREFIX, *yystack.s_mark, yystate); 497 #endif 498 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 499 *++yystack.s_mark = (YYINT) yystate; 500 *++yystack.l_mark = yyval; 501 goto yyloop; 502 503 yyoverflow: 504 YYERROR_CALL("yacc stack overflow"); 505 506 yyabort: 507 yyfreestack(&yystack); 508 return (1); 509 510 yyaccept: 511 yyfreestack(&yystack); 512 return (0); 513 } 514