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_syntax20_parse 19 #endif /* yyparse */ 20 21 #ifndef yylex 22 #define yylex err_syntax20_lex 23 #endif /* yylex */ 24 25 #ifndef yyerror 26 #define yyerror err_syntax20_error 27 #endif /* yyerror */ 28 29 #ifndef yychar 30 #define yychar err_syntax20_char 31 #endif /* yychar */ 32 33 #ifndef yyval 34 #define yyval err_syntax20_val 35 #endif /* yyval */ 36 37 #ifndef yylval 38 #define yylval err_syntax20_lval 39 #endif /* yylval */ 40 41 #ifndef yydebug 42 #define yydebug err_syntax20_debug 43 #endif /* yydebug */ 44 45 #ifndef yynerrs 46 #define yynerrs err_syntax20_nerrs 47 #endif /* yynerrs */ 48 49 #ifndef yyerrflag 50 #define yyerrflag err_syntax20_errflag 51 #endif /* yyerrflag */ 52 53 #ifndef yylhs 54 #define yylhs err_syntax20_lhs 55 #endif /* yylhs */ 56 57 #ifndef yylen 58 #define yylen err_syntax20_len 59 #endif /* yylen */ 60 61 #ifndef yydefred 62 #define yydefred err_syntax20_defred 63 #endif /* yydefred */ 64 65 #ifndef yydgoto 66 #define yydgoto err_syntax20_dgoto 67 #endif /* yydgoto */ 68 69 #ifndef yysindex 70 #define yysindex err_syntax20_sindex 71 #endif /* yysindex */ 72 73 #ifndef yyrindex 74 #define yyrindex err_syntax20_rindex 75 #endif /* yyrindex */ 76 77 #ifndef yygindex 78 #define yygindex err_syntax20_gindex 79 #endif /* yygindex */ 80 81 #ifndef yytable 82 #define yytable err_syntax20_table 83 #endif /* yytable */ 84 85 #ifndef yycheck 86 #define yycheck err_syntax20_check 87 #endif /* yycheck */ 88 89 #ifndef yyname 90 #define yyname err_syntax20_name 91 #endif /* yyname */ 92 93 #ifndef yyrule 94 #define yyrule err_syntax20_rule 95 #endif /* yyrule */ 96 #define YYPREFIX "err_syntax20_" 97 98 #define YYPURE 0 99 100 #line 2 "err_syntax20.y" 101 int yylex(void); 102 static void yyerror(const char *); 103 #line 104 "err_syntax20.tab.c" 104 105 /* compatibility with bison */ 106 #ifdef YYPARSE_PARAM 107 /* compatibility with FreeBSD */ 108 # ifdef YYPARSE_PARAM_TYPE 109 # define YYPARSE_DECL() yyparse(YYPARSE_PARAM_TYPE YYPARSE_PARAM) 110 # else 111 # define YYPARSE_DECL() yyparse(void *YYPARSE_PARAM) 112 # endif 113 #else 114 # define YYPARSE_DECL() yyparse(void) 115 #endif 116 117 /* Parameters sent to lex. */ 118 #ifdef YYLEX_PARAM 119 # define YYLEX_DECL() yylex(void *YYLEX_PARAM) 120 # define YYLEX yylex(YYLEX_PARAM) 121 #else 122 # define YYLEX_DECL() yylex(void) 123 # define YYLEX yylex() 124 #endif 125 126 /* Parameters sent to yyerror. */ 127 #ifndef YYERROR_DECL 128 #define YYERROR_DECL() yyerror(const char *s) 129 #endif 130 #ifndef YYERROR_CALL 131 #define YYERROR_CALL(msg) yyerror(msg) 132 #endif 133 134 extern int YYPARSE_DECL(); 135 136 #define recur 257 137 #define YYERRCODE 256 138 typedef int YYINT; 139 static const YYINT err_syntax20_lhs[] = { -1, 140 0, 141 }; 142 static const YYINT err_syntax20_len[] = { 2, 143 3, 144 }; 145 static const YYINT err_syntax20_defred[] = { 0, 146 0, 0, 0, 1, 147 }; 148 static const YYINT err_syntax20_dgoto[] = { 2, 149 }; 150 static const YYINT err_syntax20_sindex[] = { -40, 151 -256, 0, -39, 0, 152 }; 153 static const YYINT err_syntax20_rindex[] = { 0, 154 0, 0, 0, 0, 155 }; 156 static const YYINT err_syntax20_gindex[] = { 0, 157 }; 158 #define YYTABLESIZE 2 159 static const YYINT err_syntax20_table[] = { 1, 160 3, 4, 161 }; 162 static const YYINT err_syntax20_check[] = { 40, 163 257, 41, 164 }; 165 #define YYFINAL 2 166 #ifndef YYDEBUG 167 #define YYDEBUG 0 168 #endif 169 #define YYMAXTOKEN 257 170 #define YYUNDFTOKEN 260 171 #define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a)) 172 #if YYDEBUG 173 static const char *const err_syntax20_name[] = { 174 175 "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, 176 0,0,0,0,0,0,"'('","')'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 177 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 178 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 179 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 180 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 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,"recur",0,0, 182 "illegal-symbol", 183 }; 184 static const char *const err_syntax20_rule[] = { 185 "$accept : expr", 186 "expr : '(' recur ')'", 187 188 }; 189 #endif 190 191 #if YYDEBUG 192 int yydebug; 193 #endif 194 195 int yyerrflag; 196 int yychar; 197 YYSTYPE yyval; 198 YYSTYPE yylval; 199 int yynerrs; 200 201 /* define the initial stack-sizes */ 202 #ifdef YYSTACKSIZE 203 #undef YYMAXDEPTH 204 #define YYMAXDEPTH YYSTACKSIZE 205 #else 206 #ifdef YYMAXDEPTH 207 #define YYSTACKSIZE YYMAXDEPTH 208 #else 209 #define YYSTACKSIZE 10000 210 #define YYMAXDEPTH 10000 211 #endif 212 #endif 213 214 #define YYINITSTACKSIZE 200 215 216 typedef struct { 217 unsigned stacksize; 218 YYINT *s_base; 219 YYINT *s_mark; 220 YYINT *s_last; 221 YYSTYPE *l_base; 222 YYSTYPE *l_mark; 223 } YYSTACKDATA; 224 /* variables for the parser stack */ 225 static YYSTACKDATA yystack; 226 #line 16 "err_syntax20.y" 227 228 #include <stdio.h> 229 230 int 231 main(void) 232 { 233 printf("yyparse() = %d\n", yyparse()); 234 return 0; 235 } 236 237 int 238 yylex(void) 239 { 240 return -1; 241 } 242 243 static void 244 yyerror(const char* s) 245 { 246 printf("%s\n", s); 247 } 248 #line 249 "err_syntax20.tab.c" 249 250 #if YYDEBUG 251 #include <stdio.h> /* needed for printf */ 252 #endif 253 254 #include <stdlib.h> /* needed for malloc, etc */ 255 #include <string.h> /* needed for memset */ 256 257 /* allocate initial stack or double stack size, up to YYMAXDEPTH */ 258 static int yygrowstack(YYSTACKDATA *data) 259 { 260 int i; 261 unsigned newsize; 262 YYINT *newss; 263 YYSTYPE *newvs; 264 265 if ((newsize = data->stacksize) == 0) 266 newsize = YYINITSTACKSIZE; 267 else if (newsize >= YYMAXDEPTH) 268 return YYENOMEM; 269 else if ((newsize *= 2) > YYMAXDEPTH) 270 newsize = YYMAXDEPTH; 271 272 i = (int) (data->s_mark - data->s_base); 273 newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss)); 274 if (newss == NULL) 275 return YYENOMEM; 276 277 data->s_base = newss; 278 data->s_mark = newss + i; 279 280 newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs)); 281 if (newvs == NULL) 282 return YYENOMEM; 283 284 data->l_base = newvs; 285 data->l_mark = newvs + i; 286 287 data->stacksize = newsize; 288 data->s_last = data->s_base + newsize - 1; 289 return 0; 290 } 291 292 #if YYPURE || defined(YY_NO_LEAKS) 293 static void yyfreestack(YYSTACKDATA *data) 294 { 295 free(data->s_base); 296 free(data->l_base); 297 memset(data, 0, sizeof(*data)); 298 } 299 #else 300 #define yyfreestack(data) /* nothing */ 301 #endif 302 303 #define YYABORT goto yyabort 304 #define YYREJECT goto yyabort 305 #define YYACCEPT goto yyaccept 306 #define YYERROR goto yyerrlab 307 308 int 309 YYPARSE_DECL() 310 { 311 int yym, yyn, yystate; 312 #if YYDEBUG 313 const char *yys; 314 315 if ((yys = getenv("YYDEBUG")) != NULL) 316 { 317 yyn = *yys; 318 if (yyn >= '0' && yyn <= '9') 319 yydebug = yyn - '0'; 320 } 321 #endif 322 323 yym = 0; 324 yyn = 0; 325 yynerrs = 0; 326 yyerrflag = 0; 327 yychar = YYEMPTY; 328 yystate = 0; 329 330 #if YYPURE 331 memset(&yystack, 0, sizeof(yystack)); 332 #endif 333 334 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 335 yystack.s_mark = yystack.s_base; 336 yystack.l_mark = yystack.l_base; 337 yystate = 0; 338 *yystack.s_mark = 0; 339 340 yyloop: 341 if ((yyn = yydefred[yystate]) != 0) goto yyreduce; 342 if (yychar < 0) 343 { 344 yychar = YYLEX; 345 if (yychar < 0) yychar = YYEOF; 346 #if YYDEBUG 347 if (yydebug) 348 { 349 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 350 printf("%sdebug: state %d, reading %d (%s)\n", 351 YYPREFIX, yystate, yychar, yys); 352 } 353 #endif 354 } 355 if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 && 356 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar) 357 { 358 #if YYDEBUG 359 if (yydebug) 360 printf("%sdebug: state %d, shifting to state %d\n", 361 YYPREFIX, yystate, yytable[yyn]); 362 #endif 363 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 364 yystate = yytable[yyn]; 365 *++yystack.s_mark = yytable[yyn]; 366 *++yystack.l_mark = yylval; 367 yychar = YYEMPTY; 368 if (yyerrflag > 0) --yyerrflag; 369 goto yyloop; 370 } 371 if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 && 372 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar) 373 { 374 yyn = yytable[yyn]; 375 goto yyreduce; 376 } 377 if (yyerrflag != 0) goto yyinrecovery; 378 379 YYERROR_CALL("syntax error"); 380 381 goto yyerrlab; /* redundant goto avoids 'unused label' warning */ 382 yyerrlab: 383 ++yynerrs; 384 385 yyinrecovery: 386 if (yyerrflag < 3) 387 { 388 yyerrflag = 3; 389 for (;;) 390 { 391 if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 && 392 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE) 393 { 394 #if YYDEBUG 395 if (yydebug) 396 printf("%sdebug: state %d, error recovery shifting\ 397 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]); 398 #endif 399 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 400 yystate = yytable[yyn]; 401 *++yystack.s_mark = yytable[yyn]; 402 *++yystack.l_mark = yylval; 403 goto yyloop; 404 } 405 else 406 { 407 #if YYDEBUG 408 if (yydebug) 409 printf("%sdebug: error recovery discarding state %d\n", 410 YYPREFIX, *yystack.s_mark); 411 #endif 412 if (yystack.s_mark <= yystack.s_base) goto yyabort; 413 --yystack.s_mark; 414 --yystack.l_mark; 415 } 416 } 417 } 418 else 419 { 420 if (yychar == YYEOF) goto yyabort; 421 #if YYDEBUG 422 if (yydebug) 423 { 424 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 425 printf("%sdebug: state %d, error recovery discards token %d (%s)\n", 426 YYPREFIX, yystate, yychar, yys); 427 } 428 #endif 429 yychar = YYEMPTY; 430 goto yyloop; 431 } 432 433 yyreduce: 434 #if YYDEBUG 435 if (yydebug) 436 printf("%sdebug: state %d, reducing by rule %d (%s)\n", 437 YYPREFIX, yystate, yyn, yyrule[yyn]); 438 #endif 439 yym = yylen[yyn]; 440 if (yym > 0) 441 yyval = yystack.l_mark[1-yym]; 442 else 443 memset(&yyval, 0, sizeof yyval); 444 445 switch (yyn) 446 { 447 case 1: 448 #line 12 "err_syntax20.y" 449 { yystack.l_mark[-1].rechk = 3; } 450 break; 451 #line 452 "err_syntax20.tab.c" 452 } 453 yystack.s_mark -= yym; 454 yystate = *yystack.s_mark; 455 yystack.l_mark -= yym; 456 yym = yylhs[yyn]; 457 if (yystate == 0 && yym == 0) 458 { 459 #if YYDEBUG 460 if (yydebug) 461 printf("%sdebug: after reduction, shifting from state 0 to\ 462 state %d\n", YYPREFIX, YYFINAL); 463 #endif 464 yystate = YYFINAL; 465 *++yystack.s_mark = YYFINAL; 466 *++yystack.l_mark = yyval; 467 if (yychar < 0) 468 { 469 yychar = YYLEX; 470 if (yychar < 0) yychar = YYEOF; 471 #if YYDEBUG 472 if (yydebug) 473 { 474 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 475 printf("%sdebug: state %d, reading %d (%s)\n", 476 YYPREFIX, YYFINAL, yychar, yys); 477 } 478 #endif 479 } 480 if (yychar == YYEOF) goto yyaccept; 481 goto yyloop; 482 } 483 if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 && 484 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate) 485 yystate = yytable[yyn]; 486 else 487 yystate = yydgoto[yym]; 488 #if YYDEBUG 489 if (yydebug) 490 printf("%sdebug: after reduction, shifting from state %d \ 491 to state %d\n", YYPREFIX, *yystack.s_mark, yystate); 492 #endif 493 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 494 *++yystack.s_mark = (YYINT) yystate; 495 *++yystack.l_mark = yyval; 496 goto yyloop; 497 498 yyoverflow: 499 YYERROR_CALL("yacc stack overflow"); 500 501 yyabort: 502 yyfreestack(&yystack); 503 return (1); 504 505 yyaccept: 506 yyfreestack(&yystack); 507 return (0); 508 } 509