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 #ident "check variant syntax features" 17 18 #ifndef yyparse 19 #define yyparse varsyntax_calc1_parse 20 #endif /* yyparse */ 21 22 #ifndef yylex 23 #define yylex varsyntax_calc1_lex 24 #endif /* yylex */ 25 26 #ifndef yyerror 27 #define yyerror varsyntax_calc1_error 28 #endif /* yyerror */ 29 30 #ifndef yychar 31 #define yychar varsyntax_calc1_char 32 #endif /* yychar */ 33 34 #ifndef yyval 35 #define yyval varsyntax_calc1_val 36 #endif /* yyval */ 37 38 #ifndef yylval 39 #define yylval varsyntax_calc1_lval 40 #endif /* yylval */ 41 42 #ifndef yydebug 43 #define yydebug varsyntax_calc1_debug 44 #endif /* yydebug */ 45 46 #ifndef yynerrs 47 #define yynerrs varsyntax_calc1_nerrs 48 #endif /* yynerrs */ 49 50 #ifndef yyerrflag 51 #define yyerrflag varsyntax_calc1_errflag 52 #endif /* yyerrflag */ 53 54 #ifndef yylhs 55 #define yylhs varsyntax_calc1_lhs 56 #endif /* yylhs */ 57 58 #ifndef yylen 59 #define yylen varsyntax_calc1_len 60 #endif /* yylen */ 61 62 #ifndef yydefred 63 #define yydefred varsyntax_calc1_defred 64 #endif /* yydefred */ 65 66 #ifndef yydgoto 67 #define yydgoto varsyntax_calc1_dgoto 68 #endif /* yydgoto */ 69 70 #ifndef yysindex 71 #define yysindex varsyntax_calc1_sindex 72 #endif /* yysindex */ 73 74 #ifndef yyrindex 75 #define yyrindex varsyntax_calc1_rindex 76 #endif /* yyrindex */ 77 78 #ifndef yygindex 79 #define yygindex varsyntax_calc1_gindex 80 #endif /* yygindex */ 81 82 #ifndef yytable 83 #define yytable varsyntax_calc1_table 84 #endif /* yytable */ 85 86 #ifndef yycheck 87 #define yycheck varsyntax_calc1_check 88 #endif /* yycheck */ 89 90 #ifndef yyname 91 #define yyname varsyntax_calc1_name 92 #endif /* yyname */ 93 94 #ifndef yyrule 95 #define yyrule varsyntax_calc1_rule 96 #endif /* yyrule */ 97 #define YYPREFIX "varsyntax_calc1_" 98 99 #define YYPURE 0 100 101 #line 3 "varsyntax_calc1.y" 102 103 /* http://dinosaur.compilertools.net/yacc/index.html * /*/ 104 105 #include <stdlib.h> 106 #include <stdio.h> 107 #include <ctype.h> 108 #include <math.h> 109 110 typedef struct interval 111 { 112 double lo, hi; 113 } 114 INTERVAL; 115 116 INTERVAL vmul(double, double, INTERVAL); 117 INTERVAL vdiv(double, double, INTERVAL); 118 119 extern int yylex(void); 120 static void yyerror(const char *s); 121 122 int dcheck(INTERVAL); 123 124 double dreg[26]; 125 INTERVAL vreg[26]; 126 127 #ifdef YYSTYPE 128 #undef YYSTYPE_IS_DECLARED 129 #define YYSTYPE_IS_DECLARED 1 130 #endif 131 #ifndef YYSTYPE_IS_DECLARED 132 #define YYSTYPE_IS_DECLARED 1 133 #line 32 "varsyntax_calc1.y" 134 typedef union YYSTYPE 135 { 136 int ival; /* dreg & vreg array index values*/ 137 double dval; /* floating point values*/ 138 INTERVAL vval; /* interval values*/ 139 } YYSTYPE; 140 #endif /* !YYSTYPE_IS_DECLARED */ 141 #line 142 "varsyntax_calc1.tab.c" 142 143 /* compatibility with bison */ 144 #ifdef YYPARSE_PARAM 145 /* compatibility with FreeBSD */ 146 # ifdef YYPARSE_PARAM_TYPE 147 # define YYPARSE_DECL() yyparse(YYPARSE_PARAM_TYPE YYPARSE_PARAM) 148 # else 149 # define YYPARSE_DECL() yyparse(void *YYPARSE_PARAM) 150 # endif 151 #else 152 # define YYPARSE_DECL() yyparse(void) 153 #endif 154 155 /* Parameters sent to lex. */ 156 #ifdef YYLEX_PARAM 157 # define YYLEX_DECL() yylex(void *YYLEX_PARAM) 158 # define YYLEX yylex(YYLEX_PARAM) 159 #else 160 # define YYLEX_DECL() yylex(void) 161 # define YYLEX yylex() 162 #endif 163 164 /* Parameters sent to yyerror. */ 165 #ifndef YYERROR_DECL 166 #define YYERROR_DECL() yyerror(const char *s) 167 #endif 168 #ifndef YYERROR_CALL 169 #define YYERROR_CALL(msg) yyerror(msg) 170 #endif 171 172 extern int YYPARSE_DECL(); 173 174 #define DREG 257 175 #define VREG 258 176 #define CONST 259 177 #define UMINUS 260 178 #define YYERRCODE 256 179 typedef int YYINT; 180 static const YYINT varsyntax_calc1_lhs[] = { -1, 181 3, 3, 0, 0, 0, 0, 0, 1, 1, 1, 182 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 183 2, 2, 2, 2, 2, 2, 2, 2, 184 }; 185 static const YYINT varsyntax_calc1_len[] = { 2, 186 0, 2, 2, 2, 4, 4, 2, 1, 1, 3, 187 3, 3, 3, 2, 3, 1, 5, 1, 3, 3, 188 3, 3, 3, 3, 3, 3, 2, 3, 189 }; 190 static const YYINT varsyntax_calc1_defred[] = { 0, 191 0, 0, 0, 8, 0, 0, 0, 0, 0, 7, 192 0, 0, 9, 18, 14, 27, 0, 0, 0, 0, 193 0, 0, 3, 0, 0, 0, 0, 4, 0, 0, 194 0, 0, 0, 15, 0, 28, 0, 0, 0, 0, 195 12, 24, 13, 26, 0, 0, 23, 25, 14, 0, 196 0, 0, 0, 0, 5, 6, 0, 0, 0, 12, 197 13, 17, 198 }; 199 static const YYINT varsyntax_calc1_dgoto[] = { 7, 200 32, 9, 0, 201 }; 202 static const YYINT varsyntax_calc1_sindex[] = { -40, 203 -8, -48, -47, 0, -37, -37, 0, 2, 17, 0, 204 -34, -37, 0, 0, 0, 0, -25, 90, -37, -37, 205 -37, -37, 0, -37, -37, -37, -37, 0, -34, -34, 206 25, 125, 31, 0, -34, 0, -11, 37, -11, 37, 207 0, 0, 0, 0, 37, 37, 0, 0, 0, 111, 208 -34, -34, -34, -34, 0, 0, 118, 69, 69, 0, 209 0, 0, 210 }; 211 static const YYINT varsyntax_calc1_rindex[] = { 0, 212 0, 38, 44, 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, -9, 0, 0, 0, 0, 51, -3, 56, 61, 216 0, 0, 0, 0, 67, 72, 0, 0, 0, 0, 217 0, 0, 0, 0, 0, 0, 0, 78, 83, 0, 218 0, 0, 219 }; 220 static const YYINT varsyntax_calc1_gindex[] = { 0, 221 4, 124, 0, 222 }; 223 #define YYTABLESIZE 225 224 static const YYINT varsyntax_calc1_table[] = { 6, 225 16, 10, 6, 8, 5, 30, 20, 5, 15, 17, 226 29, 23, 11, 12, 31, 34, 21, 19, 35, 20, 227 0, 22, 37, 39, 41, 43, 28, 0, 0, 0, 228 21, 16, 49, 50, 55, 22, 0, 20, 57, 20, 229 56, 20, 0, 21, 19, 0, 20, 9, 22, 0, 230 0, 0, 0, 18, 58, 59, 60, 61, 26, 24, 231 10, 25, 0, 27, 0, 11, 53, 51, 0, 52, 232 22, 54, 26, 24, 0, 25, 19, 27, 26, 9, 233 9, 21, 9, 27, 9, 18, 18, 10, 18, 0, 234 18, 10, 11, 10, 10, 10, 11, 0, 11, 11, 235 11, 22, 0, 22, 0, 22, 0, 19, 0, 19, 236 53, 19, 21, 0, 21, 54, 21, 0, 10, 0, 237 10, 0, 10, 11, 0, 11, 0, 11, 16, 18, 238 36, 26, 24, 0, 25, 33, 27, 0, 0, 0, 239 0, 0, 38, 40, 42, 44, 0, 45, 46, 47, 240 48, 34, 53, 51, 0, 52, 0, 54, 62, 53, 241 51, 0, 52, 0, 54, 0, 21, 19, 0, 20, 242 0, 22, 0, 0, 0, 0, 0, 0, 0, 0, 243 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 244 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 245 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 246 0, 0, 0, 0, 0, 1, 2, 3, 4, 13, 247 14, 4, 13, 0, 4, 248 }; 249 static const YYINT varsyntax_calc1_check[] = { 40, 250 10, 10, 40, 0, 45, 40, 10, 45, 5, 6, 251 45, 10, 61, 61, 11, 41, 42, 43, 44, 45, 252 -1, 47, 19, 20, 21, 22, 10, -1, -1, -1, 253 42, 41, 29, 30, 10, 47, -1, 41, 35, 43, 254 10, 45, -1, 42, 43, -1, 45, 10, 47, -1, 255 -1, -1, -1, 10, 51, 52, 53, 54, 42, 43, 256 10, 45, -1, 47, -1, 10, 42, 43, -1, 45, 257 10, 47, 42, 43, -1, 45, 10, 47, 42, 42, 258 43, 10, 45, 47, 47, 42, 43, 10, 45, -1, 259 47, 41, 10, 43, 44, 45, 41, -1, 43, 44, 260 45, 41, -1, 43, -1, 45, -1, 41, -1, 43, 261 42, 45, 41, -1, 43, 47, 45, -1, 41, -1, 262 43, -1, 45, 41, -1, 43, -1, 45, 5, 6, 263 41, 42, 43, -1, 45, 12, 47, -1, -1, -1, 264 -1, -1, 19, 20, 21, 22, -1, 24, 25, 26, 265 27, 41, 42, 43, -1, 45, -1, 47, 41, 42, 266 43, -1, 45, -1, 47, -1, 42, 43, -1, 45, 267 -1, 47, -1, -1, -1, -1, -1, -1, -1, -1, 268 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 269 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 270 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 271 -1, -1, -1, -1, -1, 256, 257, 258, 259, 257, 272 258, 259, 257, -1, 259, 273 }; 274 #define YYFINAL 7 275 #ifndef YYDEBUG 276 #define YYDEBUG 0 277 #endif 278 #define YYMAXTOKEN 260 279 #define YYUNDFTOKEN 266 280 #define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a)) 281 #if YYDEBUG 282 static const char *const varsyntax_calc1_name[] = { 283 284 "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, 285 0,0,0,0,0,0,0,0,0,"'('","')'","'*'","'+'","','","'-'",0,"'/'",0,0,0,0,0,0,0,0,0, 286 0,0,0,0,"'='",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 287 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 288 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 289 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 290 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 291 0,0,"DREG","VREG","CONST","UMINUS",0,0,0,0,0,"illegal-symbol", 292 }; 293 static const char *const varsyntax_calc1_rule[] = { 294 "$accept : line", 295 "lines :", 296 "lines : lines line", 297 "line : dexp '\\n'", 298 "line : vexp '\\n'", 299 "line : DREG '=' dexp '\\n'", 300 "line : VREG '=' vexp '\\n'", 301 "line : error '\\n'", 302 "dexp : CONST", 303 "dexp : DREG", 304 "dexp : dexp '+' dexp", 305 "dexp : dexp '-' dexp", 306 "dexp : dexp '*' dexp", 307 "dexp : dexp '/' dexp", 308 "dexp : '-' dexp", 309 "dexp : '(' dexp ')'", 310 "vexp : dexp", 311 "vexp : '(' dexp ',' dexp ')'", 312 "vexp : VREG", 313 "vexp : vexp '+' vexp", 314 "vexp : dexp '+' vexp", 315 "vexp : vexp '-' vexp", 316 "vexp : dexp '-' vexp", 317 "vexp : vexp '*' vexp", 318 "vexp : dexp '*' vexp", 319 "vexp : vexp '/' vexp", 320 "vexp : dexp '/' vexp", 321 "vexp : '-' vexp", 322 "vexp : '(' vexp ')'", 323 324 }; 325 #endif 326 327 #if YYDEBUG 328 int yydebug; 329 #endif 330 331 int yyerrflag; 332 int yychar; 333 YYSTYPE yyval; 334 YYSTYPE yylval; 335 int yynerrs; 336 337 /* define the initial stack-sizes */ 338 #ifdef YYSTACKSIZE 339 #undef YYMAXDEPTH 340 #define YYMAXDEPTH YYSTACKSIZE 341 #else 342 #ifdef YYMAXDEPTH 343 #define YYSTACKSIZE YYMAXDEPTH 344 #else 345 #define YYSTACKSIZE 10000 346 #define YYMAXDEPTH 10000 347 #endif 348 #endif 349 350 #define YYINITSTACKSIZE 200 351 352 typedef struct { 353 unsigned stacksize; 354 YYINT *s_base; 355 YYINT *s_mark; 356 YYINT *s_last; 357 YYSTYPE *l_base; 358 YYSTYPE *l_mark; 359 } YYSTACKDATA; 360 /* variables for the parser stack */ 361 static YYSTACKDATA yystack; 362 #line 178 "varsyntax_calc1.y" 363 /* beginning of subroutines section */ 364 365 #define BSZ 50 /* buffer size for floating point numbers */ 366 367 /* lexical analysis */ 368 369 static void 370 yyerror(const char *s) 371 { 372 fprintf(stderr, "%s\n", s); 373 } 374 375 int 376 yylex(void) 377 { 378 int c; 379 380 while ((c = getchar()) == ' ') 381 { /* skip over blanks */ 382 } 383 384 if (isupper(c)) 385 { 386 yylval.ival = c - 'A'; 387 return (VREG); 388 } 389 if (islower(c)) 390 { 391 yylval.ival = c - 'a'; 392 return (DREG); 393 } 394 395 if (isdigit(c) || c == '.') 396 { 397 /* gobble up digits, points, exponents */ 398 char buf[BSZ + 1], *cp = buf; 399 int dot = 0, expr = 0; 400 401 for (; (cp - buf) < BSZ; ++cp, c = getchar()) 402 { 403 404 *cp = (char) c; 405 if (isdigit(c)) 406 continue; 407 if (c == '.') 408 { 409 if (dot++ || expr) 410 return ('.'); /* will cause syntax error */ 411 continue; 412 } 413 414 if (c == 'e') 415 { 416 if (expr++) 417 return ('e'); /* will cause syntax error */ 418 continue; 419 } 420 421 /* end of number */ 422 break; 423 } 424 *cp = '\0'; 425 426 if ((cp - buf) >= BSZ) 427 printf("constant too long: truncated\n"); 428 else 429 ungetc(c, stdin); /* push back last char read */ 430 yylval.dval = atof(buf); 431 return (CONST); 432 } 433 return (c); 434 } 435 436 static INTERVAL 437 hilo(double a, double b, double c, double d) 438 { 439 /* returns the smallest interval containing a, b, c, and d */ 440 /* used by *, / routines */ 441 INTERVAL v; 442 443 if (a > b) 444 { 445 v.hi = a; 446 v.lo = b; 447 } 448 else 449 { 450 v.hi = b; 451 v.lo = a; 452 } 453 454 if (c > d) 455 { 456 if (c > v.hi) 457 v.hi = c; 458 if (d < v.lo) 459 v.lo = d; 460 } 461 else 462 { 463 if (d > v.hi) 464 v.hi = d; 465 if (c < v.lo) 466 v.lo = c; 467 } 468 return (v); 469 } 470 471 INTERVAL 472 vmul(double a, double b, INTERVAL v) 473 { 474 return (hilo(a * v.hi, a * v.lo, b * v.hi, b * v.lo)); 475 } 476 477 int 478 dcheck(INTERVAL v) 479 { 480 if (v.hi >= 0. && v.lo <= 0.) 481 { 482 printf("divisor interval contains 0.\n"); 483 return (1); 484 } 485 return (0); 486 } 487 488 INTERVAL 489 vdiv(double a, double b, INTERVAL v) 490 { 491 return (hilo(a / v.hi, a / v.lo, b / v.hi, b / v.lo)); 492 } 493 #line 494 "varsyntax_calc1.tab.c" 494 495 #if YYDEBUG 496 #include <stdio.h> /* needed for printf */ 497 #endif 498 499 #include <stdlib.h> /* needed for malloc, etc */ 500 #include <string.h> /* needed for memset */ 501 502 /* allocate initial stack or double stack size, up to YYMAXDEPTH */ 503 static int yygrowstack(YYSTACKDATA *data) 504 { 505 int i; 506 unsigned newsize; 507 YYINT *newss; 508 YYSTYPE *newvs; 509 510 if ((newsize = data->stacksize) == 0) 511 newsize = YYINITSTACKSIZE; 512 else if (newsize >= YYMAXDEPTH) 513 return YYENOMEM; 514 else if ((newsize *= 2) > YYMAXDEPTH) 515 newsize = YYMAXDEPTH; 516 517 i = (int) (data->s_mark - data->s_base); 518 newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss)); 519 if (newss == NULL) 520 return YYENOMEM; 521 522 data->s_base = newss; 523 data->s_mark = newss + i; 524 525 newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs)); 526 if (newvs == NULL) 527 return YYENOMEM; 528 529 data->l_base = newvs; 530 data->l_mark = newvs + i; 531 532 data->stacksize = newsize; 533 data->s_last = data->s_base + newsize - 1; 534 return 0; 535 } 536 537 #if YYPURE || defined(YY_NO_LEAKS) 538 static void yyfreestack(YYSTACKDATA *data) 539 { 540 free(data->s_base); 541 free(data->l_base); 542 memset(data, 0, sizeof(*data)); 543 } 544 #else 545 #define yyfreestack(data) /* nothing */ 546 #endif 547 548 #define YYABORT goto yyabort 549 #define YYREJECT goto yyabort 550 #define YYACCEPT goto yyaccept 551 #define YYERROR goto yyerrlab 552 553 int 554 YYPARSE_DECL() 555 { 556 int yym, yyn, yystate; 557 #if YYDEBUG 558 const char *yys; 559 560 if ((yys = getenv("YYDEBUG")) != NULL) 561 { 562 yyn = *yys; 563 if (yyn >= '0' && yyn <= '9') 564 yydebug = yyn - '0'; 565 } 566 #endif 567 568 /* yym is set below */ 569 /* yyn is set below */ 570 yynerrs = 0; 571 yyerrflag = 0; 572 yychar = YYEMPTY; 573 yystate = 0; 574 575 #if YYPURE 576 memset(&yystack, 0, sizeof(yystack)); 577 #endif 578 579 if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 580 yystack.s_mark = yystack.s_base; 581 yystack.l_mark = yystack.l_base; 582 yystate = 0; 583 *yystack.s_mark = 0; 584 585 yyloop: 586 if ((yyn = yydefred[yystate]) != 0) goto yyreduce; 587 if (yychar < 0) 588 { 589 yychar = YYLEX; 590 if (yychar < 0) yychar = YYEOF; 591 #if YYDEBUG 592 if (yydebug) 593 { 594 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 595 printf("%sdebug: state %d, reading %d (%s)\n", 596 YYPREFIX, yystate, yychar, yys); 597 } 598 #endif 599 } 600 if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 && 601 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar) 602 { 603 #if YYDEBUG 604 if (yydebug) 605 printf("%sdebug: state %d, shifting to state %d\n", 606 YYPREFIX, yystate, yytable[yyn]); 607 #endif 608 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 609 yystate = yytable[yyn]; 610 *++yystack.s_mark = yytable[yyn]; 611 *++yystack.l_mark = yylval; 612 yychar = YYEMPTY; 613 if (yyerrflag > 0) --yyerrflag; 614 goto yyloop; 615 } 616 if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 && 617 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar) 618 { 619 yyn = yytable[yyn]; 620 goto yyreduce; 621 } 622 if (yyerrflag != 0) goto yyinrecovery; 623 624 YYERROR_CALL("syntax error"); 625 626 goto yyerrlab; /* redundant goto avoids 'unused label' warning */ 627 yyerrlab: 628 ++yynerrs; 629 630 yyinrecovery: 631 if (yyerrflag < 3) 632 { 633 yyerrflag = 3; 634 for (;;) 635 { 636 if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 && 637 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE) 638 { 639 #if YYDEBUG 640 if (yydebug) 641 printf("%sdebug: state %d, error recovery shifting\ 642 to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]); 643 #endif 644 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 645 yystate = yytable[yyn]; 646 *++yystack.s_mark = yytable[yyn]; 647 *++yystack.l_mark = yylval; 648 goto yyloop; 649 } 650 else 651 { 652 #if YYDEBUG 653 if (yydebug) 654 printf("%sdebug: error recovery discarding state %d\n", 655 YYPREFIX, *yystack.s_mark); 656 #endif 657 if (yystack.s_mark <= yystack.s_base) goto yyabort; 658 --yystack.s_mark; 659 --yystack.l_mark; 660 } 661 } 662 } 663 else 664 { 665 if (yychar == YYEOF) goto yyabort; 666 #if YYDEBUG 667 if (yydebug) 668 { 669 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 670 printf("%sdebug: state %d, error recovery discards token %d (%s)\n", 671 YYPREFIX, yystate, yychar, yys); 672 } 673 #endif 674 yychar = YYEMPTY; 675 goto yyloop; 676 } 677 678 yyreduce: 679 #if YYDEBUG 680 if (yydebug) 681 printf("%sdebug: state %d, reducing by rule %d (%s)\n", 682 YYPREFIX, yystate, yyn, yyrule[yyn]); 683 #endif 684 yym = yylen[yyn]; 685 if (yym > 0) 686 yyval = yystack.l_mark[1-yym]; 687 else 688 memset(&yyval, 0, sizeof yyval); 689 690 switch (yyn) 691 { 692 case 3: 693 #line 59 "varsyntax_calc1.y" 694 { 695 (void) printf("%15.8f\n", yystack.l_mark[-1].dval); 696 } 697 #line 698 "varsyntax_calc1.tab.c" 698 break; 699 case 4: 700 #line 63 "varsyntax_calc1.y" 701 { 702 (void) printf("(%15.8f, %15.8f)\n", yystack.l_mark[-1].vval.lo, yystack.l_mark[-1].vval.hi); 703 } 704 #line 705 "varsyntax_calc1.tab.c" 705 break; 706 case 5: 707 #line 67 "varsyntax_calc1.y" 708 { 709 dreg[yystack.l_mark[-3].ival] = yystack.l_mark[-1].dval; 710 } 711 #line 712 "varsyntax_calc1.tab.c" 712 break; 713 case 6: 714 #line 71 "varsyntax_calc1.y" 715 { 716 vreg[yystack.l_mark[-3].ival] = yystack.l_mark[-1].vval; 717 } 718 #line 719 "varsyntax_calc1.tab.c" 719 break; 720 case 7: 721 #line 75 "varsyntax_calc1.y" 722 { 723 yyerrok; 724 } 725 #line 726 "varsyntax_calc1.tab.c" 726 break; 727 case 9: 728 #line 82 "varsyntax_calc1.y" 729 { 730 yyval.dval = dreg[yystack.l_mark[0].ival]; /* $$ & $1 are sufficient here*/ 731 } 732 #line 733 "varsyntax_calc1.tab.c" 733 break; 734 case 10: 735 #line 86 "varsyntax_calc1.y" 736 { 737 yyval.dval = yystack.l_mark[-2].dval + yystack.l_mark[0].dval; 738 } 739 #line 740 "varsyntax_calc1.tab.c" 740 break; 741 case 11: 742 #line 90 "varsyntax_calc1.y" 743 { 744 yyval.dval = yystack.l_mark[-2].dval - yystack.l_mark[0].dval; 745 } 746 #line 747 "varsyntax_calc1.tab.c" 747 break; 748 case 12: 749 #line 94 "varsyntax_calc1.y" 750 { 751 yyval.dval = yystack.l_mark[-2].dval * yystack.l_mark[0].dval; 752 } 753 #line 754 "varsyntax_calc1.tab.c" 754 break; 755 case 13: 756 #line 98 "varsyntax_calc1.y" 757 { 758 yyval.dval = yystack.l_mark[-2].dval / yystack.l_mark[0].dval; 759 } 760 #line 761 "varsyntax_calc1.tab.c" 761 break; 762 case 14: 763 #line 102 "varsyntax_calc1.y" 764 { 765 yyval.dval = -yystack.l_mark[0].dval; 766 } 767 #line 768 "varsyntax_calc1.tab.c" 768 break; 769 case 15: 770 #line 106 "varsyntax_calc1.y" 771 { 772 yyval.dval = yystack.l_mark[-1].dval; 773 } 774 #line 775 "varsyntax_calc1.tab.c" 775 break; 776 case 16: 777 #line 112 "varsyntax_calc1.y" 778 { 779 yyval.vval.hi = yyval.vval.lo = yystack.l_mark[0].dval; 780 } 781 #line 782 "varsyntax_calc1.tab.c" 782 break; 783 case 17: 784 #line 116 "varsyntax_calc1.y" 785 { 786 yyval.vval.lo = yystack.l_mark[-3].dval; 787 yyval.vval.hi = yystack.l_mark[-1].dval; 788 if ( yyval.vval.lo > yyval.vval.hi ) 789 { 790 (void) printf("interval out of order\n"); 791 YYERROR; 792 } 793 } 794 #line 795 "varsyntax_calc1.tab.c" 795 break; 796 case 18: 797 #line 126 "varsyntax_calc1.y" 798 { 799 yyval.vval = vreg[yystack.l_mark[0].ival]; 800 } 801 #line 802 "varsyntax_calc1.tab.c" 802 break; 803 case 19: 804 #line 130 "varsyntax_calc1.y" 805 { 806 yyval.vval.hi = yystack.l_mark[-2].vval.hi + yystack.l_mark[0].vval.hi; 807 yyval.vval.lo = yystack.l_mark[-2].vval.lo + yystack.l_mark[0].vval.lo; 808 } 809 #line 810 "varsyntax_calc1.tab.c" 810 break; 811 case 20: 812 #line 135 "varsyntax_calc1.y" 813 { 814 yyval.vval.hi = yystack.l_mark[-2].dval + yystack.l_mark[0].vval.hi; 815 yyval.vval.lo = yystack.l_mark[-2].dval + yystack.l_mark[0].vval.lo; 816 } 817 #line 818 "varsyntax_calc1.tab.c" 818 break; 819 case 21: 820 #line 140 "varsyntax_calc1.y" 821 { 822 yyval.vval.hi = yystack.l_mark[-2].vval.hi - yystack.l_mark[0].vval.lo; 823 yyval.vval.lo = yystack.l_mark[-2].vval.lo - yystack.l_mark[0].vval.hi; 824 } 825 #line 826 "varsyntax_calc1.tab.c" 826 break; 827 case 22: 828 #line 145 "varsyntax_calc1.y" 829 { 830 yyval.vval.hi = yystack.l_mark[-2].dval - yystack.l_mark[0].vval.lo; 831 yyval.vval.lo = yystack.l_mark[-2].dval - yystack.l_mark[0].vval.hi; 832 } 833 #line 834 "varsyntax_calc1.tab.c" 834 break; 835 case 23: 836 #line 150 "varsyntax_calc1.y" 837 { 838 yyval.vval = vmul( yystack.l_mark[-2].vval.lo, yystack.l_mark[-2].vval.hi, yystack.l_mark[0].vval ); 839 } 840 #line 841 "varsyntax_calc1.tab.c" 841 break; 842 case 24: 843 #line 154 "varsyntax_calc1.y" 844 { 845 yyval.vval = vmul (yystack.l_mark[-2].dval, yystack.l_mark[-2].dval, yystack.l_mark[0].vval ); 846 } 847 #line 848 "varsyntax_calc1.tab.c" 848 break; 849 case 25: 850 #line 158 "varsyntax_calc1.y" 851 { 852 if (dcheck(yystack.l_mark[0].vval)) YYERROR; 853 yyval.vval = vdiv ( yystack.l_mark[-2].vval.lo, yystack.l_mark[-2].vval.hi, yystack.l_mark[0].vval ); 854 } 855 #line 856 "varsyntax_calc1.tab.c" 856 break; 857 case 26: 858 #line 163 "varsyntax_calc1.y" 859 { 860 if (dcheck ( yystack.l_mark[0].vval )) YYERROR; 861 yyval.vval = vdiv (yystack.l_mark[-2].dval, yystack.l_mark[-2].dval, yystack.l_mark[0].vval ); 862 } 863 #line 864 "varsyntax_calc1.tab.c" 864 break; 865 case 27: 866 #line 168 "varsyntax_calc1.y" 867 { 868 yyval.vval.hi = -yystack.l_mark[0].vval.lo; 869 yyval.vval.lo = -yystack.l_mark[0].vval.hi; 870 } 871 #line 872 "varsyntax_calc1.tab.c" 872 break; 873 case 28: 874 #line 173 "varsyntax_calc1.y" 875 { 876 yyval.vval = yystack.l_mark[-1].vval; 877 } 878 #line 879 "varsyntax_calc1.tab.c" 879 break; 880 #line 881 "varsyntax_calc1.tab.c" 881 } 882 yystack.s_mark -= yym; 883 yystate = *yystack.s_mark; 884 yystack.l_mark -= yym; 885 yym = yylhs[yyn]; 886 if (yystate == 0 && yym == 0) 887 { 888 #if YYDEBUG 889 if (yydebug) 890 printf("%sdebug: after reduction, shifting from state 0 to\ 891 state %d\n", YYPREFIX, YYFINAL); 892 #endif 893 yystate = YYFINAL; 894 *++yystack.s_mark = YYFINAL; 895 *++yystack.l_mark = yyval; 896 if (yychar < 0) 897 { 898 yychar = YYLEX; 899 if (yychar < 0) yychar = YYEOF; 900 #if YYDEBUG 901 if (yydebug) 902 { 903 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 904 printf("%sdebug: state %d, reading %d (%s)\n", 905 YYPREFIX, YYFINAL, yychar, yys); 906 } 907 #endif 908 } 909 if (yychar == YYEOF) goto yyaccept; 910 goto yyloop; 911 } 912 if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 && 913 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate) 914 yystate = yytable[yyn]; 915 else 916 yystate = yydgoto[yym]; 917 #if YYDEBUG 918 if (yydebug) 919 printf("%sdebug: after reduction, shifting from state %d \ 920 to state %d\n", YYPREFIX, *yystack.s_mark, yystate); 921 #endif 922 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 923 *++yystack.s_mark = (YYINT) yystate; 924 *++yystack.l_mark = yyval; 925 goto yyloop; 926 927 yyoverflow: 928 YYERROR_CALL("yacc stack overflow"); 929 930 yyabort: 931 yyfreestack(&yystack); 932 return (1); 933 934 yyaccept: 935 yyfreestack(&yystack); 936 return (0); 937 } 938