1 /* $NetBSD: varsyntax_calc1.tab.c,v 1.2 2017/02/11 19:33:13 christos Exp $ */ 2 3 /* original parser id follows */ 4 /* yysccsid[] = "@(#)yaccpar 1.9 (Berkeley) 02/21/93" */ 5 /* (use YYMAJOR/YYMINOR for ifdefs dependent on parser version) */ 6 7 #define YYBYACC 1 8 #define YYMAJOR 1 9 #define YYMINOR 9 10 #define YYCHECK "yyyymmdd" 11 12 #define YYEMPTY (-1) 13 #define yyclearin (yychar = YYEMPTY) 14 #define yyerrok (yyerrflag = 0) 15 #define YYRECOVERING() (yyerrflag != 0) 16 #define YYENOMEM (-2) 17 #define YYEOF 0 18 #ident "check variant syntax features" 19 20 #ifndef yyparse 21 #define yyparse varsyntax_calc1_parse 22 #endif /* yyparse */ 23 24 #ifndef yylex 25 #define yylex varsyntax_calc1_lex 26 #endif /* yylex */ 27 28 #ifndef yyerror 29 #define yyerror varsyntax_calc1_error 30 #endif /* yyerror */ 31 32 #ifndef yychar 33 #define yychar varsyntax_calc1_char 34 #endif /* yychar */ 35 36 #ifndef yyval 37 #define yyval varsyntax_calc1_val 38 #endif /* yyval */ 39 40 #ifndef yylval 41 #define yylval varsyntax_calc1_lval 42 #endif /* yylval */ 43 44 #ifndef yydebug 45 #define yydebug varsyntax_calc1_debug 46 #endif /* yydebug */ 47 48 #ifndef yynerrs 49 #define yynerrs varsyntax_calc1_nerrs 50 #endif /* yynerrs */ 51 52 #ifndef yyerrflag 53 #define yyerrflag varsyntax_calc1_errflag 54 #endif /* yyerrflag */ 55 56 #ifndef yylhs 57 #define yylhs varsyntax_calc1_lhs 58 #endif /* yylhs */ 59 60 #ifndef yylen 61 #define yylen varsyntax_calc1_len 62 #endif /* yylen */ 63 64 #ifndef yydefred 65 #define yydefred varsyntax_calc1_defred 66 #endif /* yydefred */ 67 68 #ifndef yydgoto 69 #define yydgoto varsyntax_calc1_dgoto 70 #endif /* yydgoto */ 71 72 #ifndef yysindex 73 #define yysindex varsyntax_calc1_sindex 74 #endif /* yysindex */ 75 76 #ifndef yyrindex 77 #define yyrindex varsyntax_calc1_rindex 78 #endif /* yyrindex */ 79 80 #ifndef yygindex 81 #define yygindex varsyntax_calc1_gindex 82 #endif /* yygindex */ 83 84 #ifndef yytable 85 #define yytable varsyntax_calc1_table 86 #endif /* yytable */ 87 88 #ifndef yycheck 89 #define yycheck varsyntax_calc1_check 90 #endif /* yycheck */ 91 92 #ifndef yyname 93 #define yyname varsyntax_calc1_name 94 #endif /* yyname */ 95 96 #ifndef yyrule 97 #define yyrule varsyntax_calc1_rule 98 #endif /* yyrule */ 99 #define YYPREFIX "varsyntax_calc1_" 100 101 #define YYPURE 0 102 103 #line 3 "varsyntax_calc1.y" 104 105 /* http://dinosaur.compilertools.net/yacc/index.html * /*/ 106 107 #include <stdlib.h> 108 #include <stdio.h> 109 #include <ctype.h> 110 #include <math.h> 111 112 typedef struct interval 113 { 114 double lo, hi; 115 } 116 INTERVAL; 117 118 INTERVAL vmul(double, double, INTERVAL); 119 INTERVAL vdiv(double, double, INTERVAL); 120 121 extern int yylex(void); 122 static void yyerror(const char *s); 123 124 int dcheck(INTERVAL); 125 126 double dreg[26]; 127 INTERVAL vreg[26]; 128 129 #ifdef YYSTYPE 130 #undef YYSTYPE_IS_DECLARED 131 #define YYSTYPE_IS_DECLARED 1 132 #endif 133 #ifndef YYSTYPE_IS_DECLARED 134 #define YYSTYPE_IS_DECLARED 1 135 #line 32 "varsyntax_calc1.y" 136 typedef union 137 { 138 int ival; /* dreg & vreg array index values*/ 139 double dval; /* floating point values*/ 140 INTERVAL vval; /* interval values*/ 141 } YYSTYPE; 142 #endif /* !YYSTYPE_IS_DECLARED */ 143 #line 142 "varsyntax_calc1.tab.c" 144 145 /* compatibility with bison */ 146 #ifdef YYPARSE_PARAM 147 /* compatibility with FreeBSD */ 148 # ifdef YYPARSE_PARAM_TYPE 149 # define YYPARSE_DECL() yyparse(YYPARSE_PARAM_TYPE YYPARSE_PARAM) 150 # else 151 # define YYPARSE_DECL() yyparse(void *YYPARSE_PARAM) 152 # endif 153 #else 154 # define YYPARSE_DECL() yyparse(void) 155 #endif 156 157 /* Parameters sent to lex. */ 158 #ifdef YYLEX_PARAM 159 # define YYLEX_DECL() yylex(void *YYLEX_PARAM) 160 # define YYLEX yylex(YYLEX_PARAM) 161 #else 162 # define YYLEX_DECL() yylex(void) 163 # define YYLEX yylex() 164 #endif 165 166 /* Parameters sent to yyerror. */ 167 #ifndef YYERROR_DECL 168 #define YYERROR_DECL() yyerror(const char *s) 169 #endif 170 #ifndef YYERROR_CALL 171 #define YYERROR_CALL(msg) yyerror(msg) 172 #endif 173 174 extern int YYPARSE_DECL(); 175 176 #define DREG 257 177 #define VREG 258 178 #define CONST 259 179 #define UMINUS 260 180 #define YYERRCODE 256 181 typedef short YYINT; 182 static const YYINT varsyntax_calc1_lhs[] = { -1, 183 3, 3, 0, 0, 0, 0, 0, 1, 1, 1, 184 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 185 2, 2, 2, 2, 2, 2, 2, 2, 186 }; 187 static const YYINT varsyntax_calc1_len[] = { 2, 188 0, 2, 2, 2, 4, 4, 2, 1, 1, 3, 189 3, 3, 3, 2, 3, 1, 5, 1, 3, 3, 190 3, 3, 3, 3, 3, 3, 2, 3, 191 }; 192 static const YYINT varsyntax_calc1_defred[] = { 0, 193 0, 0, 0, 8, 0, 0, 0, 0, 0, 7, 194 0, 0, 9, 18, 14, 27, 0, 0, 0, 0, 195 0, 0, 3, 0, 0, 0, 0, 4, 0, 0, 196 0, 0, 0, 15, 0, 28, 0, 0, 0, 0, 197 12, 24, 13, 26, 0, 0, 23, 25, 14, 0, 198 0, 0, 0, 0, 5, 6, 0, 0, 0, 12, 199 13, 17, 200 }; 201 static const YYINT varsyntax_calc1_dgoto[] = { 7, 202 32, 9, 0, 203 }; 204 static const YYINT varsyntax_calc1_sindex[] = { -40, 205 -8, -48, -47, 0, -37, -37, 0, 2, 17, 0, 206 -34, -37, 0, 0, 0, 0, -25, 90, -37, -37, 207 -37, -37, 0, -37, -37, -37, -37, 0, -34, -34, 208 25, 125, 31, 0, -34, 0, -11, 37, -11, 37, 209 0, 0, 0, 0, 37, 37, 0, 0, 0, 111, 210 -34, -34, -34, -34, 0, 0, 118, 69, 69, 0, 211 0, 0, 212 }; 213 static const YYINT varsyntax_calc1_rindex[] = { 0, 214 0, 38, 44, 0, 0, 0, 0, 0, 0, 0, 215 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 216 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 217 0, -9, 0, 0, 0, 0, 51, -3, 56, 61, 218 0, 0, 0, 0, 67, 72, 0, 0, 0, 0, 219 0, 0, 0, 0, 0, 0, 0, 78, 83, 0, 220 0, 0, 221 }; 222 static const YYINT varsyntax_calc1_gindex[] = { 0, 223 4, 124, 0, 224 }; 225 #define YYTABLESIZE 225 226 static const YYINT varsyntax_calc1_table[] = { 6, 227 16, 10, 6, 8, 5, 30, 20, 5, 15, 17, 228 29, 23, 11, 12, 31, 34, 21, 19, 35, 20, 229 0, 22, 37, 39, 41, 43, 28, 0, 0, 0, 230 21, 16, 49, 50, 55, 22, 0, 20, 57, 20, 231 56, 20, 0, 21, 19, 0, 20, 9, 22, 0, 232 0, 0, 0, 18, 58, 59, 60, 61, 26, 24, 233 10, 25, 0, 27, 0, 11, 53, 51, 0, 52, 234 22, 54, 26, 24, 0, 25, 19, 27, 26, 9, 235 9, 21, 9, 27, 9, 18, 18, 10, 18, 0, 236 18, 10, 11, 10, 10, 10, 11, 0, 11, 11, 237 11, 22, 0, 22, 0, 22, 0, 19, 0, 19, 238 53, 19, 21, 0, 21, 54, 21, 0, 10, 0, 239 10, 0, 10, 11, 0, 11, 0, 11, 16, 18, 240 36, 26, 24, 0, 25, 33, 27, 0, 0, 0, 241 0, 0, 38, 40, 42, 44, 0, 45, 46, 47, 242 48, 34, 53, 51, 0, 52, 0, 54, 62, 53, 243 51, 0, 52, 0, 54, 0, 21, 19, 0, 20, 244 0, 22, 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, 0, 0, 0, 0, 0, 247 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 248 0, 0, 0, 0, 0, 1, 2, 3, 4, 13, 249 14, 4, 13, 0, 4, 250 }; 251 static const YYINT varsyntax_calc1_check[] = { 40, 252 10, 10, 40, 0, 45, 40, 10, 45, 5, 6, 253 45, 10, 61, 61, 11, 41, 42, 43, 44, 45, 254 -1, 47, 19, 20, 21, 22, 10, -1, -1, -1, 255 42, 41, 29, 30, 10, 47, -1, 41, 35, 43, 256 10, 45, -1, 42, 43, -1, 45, 10, 47, -1, 257 -1, -1, -1, 10, 51, 52, 53, 54, 42, 43, 258 10, 45, -1, 47, -1, 10, 42, 43, -1, 45, 259 10, 47, 42, 43, -1, 45, 10, 47, 42, 42, 260 43, 10, 45, 47, 47, 42, 43, 10, 45, -1, 261 47, 41, 10, 43, 44, 45, 41, -1, 43, 44, 262 45, 41, -1, 43, -1, 45, -1, 41, -1, 43, 263 42, 45, 41, -1, 43, 47, 45, -1, 41, -1, 264 43, -1, 45, 41, -1, 43, -1, 45, 5, 6, 265 41, 42, 43, -1, 45, 12, 47, -1, -1, -1, 266 -1, -1, 19, 20, 21, 22, -1, 24, 25, 26, 267 27, 41, 42, 43, -1, 45, -1, 47, 41, 42, 268 43, -1, 45, -1, 47, -1, 42, 43, -1, 45, 269 -1, 47, -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, -1, -1, -1, -1, -1, 272 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 273 -1, -1, -1, -1, -1, 256, 257, 258, 259, 257, 274 258, 259, 257, -1, 259, 275 }; 276 #define YYFINAL 7 277 #ifndef YYDEBUG 278 #define YYDEBUG 0 279 #endif 280 #define YYMAXTOKEN 260 281 #define YYUNDFTOKEN 266 282 #define YYTRANSLATE(a) ((a) > YYMAXTOKEN ? YYUNDFTOKEN : (a)) 283 #if YYDEBUG 284 static const char *const varsyntax_calc1_name[] = { 285 286 "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, 287 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, 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 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 292 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 293 0,0,"DREG","VREG","CONST","UMINUS",0,0,0,0,0,"illegal-symbol", 294 }; 295 static const char *const varsyntax_calc1_rule[] = { 296 "$accept : line", 297 "lines :", 298 "lines : lines line", 299 "line : dexp '\\n'", 300 "line : vexp '\\n'", 301 "line : DREG '=' dexp '\\n'", 302 "line : VREG '=' vexp '\\n'", 303 "line : error '\\n'", 304 "dexp : CONST", 305 "dexp : DREG", 306 "dexp : dexp '+' dexp", 307 "dexp : dexp '-' dexp", 308 "dexp : dexp '*' dexp", 309 "dexp : dexp '/' dexp", 310 "dexp : '-' dexp", 311 "dexp : '(' dexp ')'", 312 "vexp : dexp", 313 "vexp : '(' dexp ',' dexp ')'", 314 "vexp : VREG", 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 '/' vexp", 322 "vexp : dexp '/' vexp", 323 "vexp : '-' vexp", 324 "vexp : '(' vexp ')'", 325 326 }; 327 #endif 328 329 int yydebug; 330 int yynerrs; 331 332 int yyerrflag; 333 int yychar; 334 YYSTYPE yyval; 335 YYSTYPE yylval; 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 492 "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 == 0) 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 == 0) 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")) != 0) 561 { 562 yyn = *yys; 563 if (yyn >= '0' && yyn <= '9') 564 yydebug = yyn - '0'; 565 } 566 #endif 567 568 yym = 0; 569 yyn = 0; 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 break; 698 case 4: 699 #line 63 "varsyntax_calc1.y" 700 { 701 (void) printf("(%15.8f, %15.8f)\n", yystack.l_mark[-1].vval.lo, yystack.l_mark[-1].vval.hi); 702 } 703 break; 704 case 5: 705 #line 67 "varsyntax_calc1.y" 706 { 707 dreg[yystack.l_mark[-3].ival] = yystack.l_mark[-1].dval; 708 } 709 break; 710 case 6: 711 #line 71 "varsyntax_calc1.y" 712 { 713 vreg[yystack.l_mark[-3].ival] = yystack.l_mark[-1].vval; 714 } 715 break; 716 case 7: 717 #line 75 "varsyntax_calc1.y" 718 { 719 yyerrok; 720 } 721 break; 722 case 9: 723 #line 82 "varsyntax_calc1.y" 724 { 725 yyval.dval = dreg[yystack.l_mark[0].ival]; /* $$ & $1 are sufficient here*/ 726 } 727 break; 728 case 10: 729 #line 86 "varsyntax_calc1.y" 730 { 731 yyval.dval = yystack.l_mark[-2].dval + yystack.l_mark[0].dval; 732 } 733 break; 734 case 11: 735 #line 90 "varsyntax_calc1.y" 736 { 737 yyval.dval = yystack.l_mark[-2].dval - yystack.l_mark[0].dval; 738 } 739 break; 740 case 12: 741 #line 94 "varsyntax_calc1.y" 742 { 743 yyval.dval = yystack.l_mark[-2].dval * yystack.l_mark[0].dval; 744 } 745 break; 746 case 13: 747 #line 98 "varsyntax_calc1.y" 748 { 749 yyval.dval = yystack.l_mark[-2].dval / yystack.l_mark[0].dval; 750 } 751 break; 752 case 14: 753 #line 102 "varsyntax_calc1.y" 754 { 755 yyval.dval = -yystack.l_mark[0].dval; 756 } 757 break; 758 case 15: 759 #line 106 "varsyntax_calc1.y" 760 { 761 yyval.dval = yystack.l_mark[-1].dval; 762 } 763 break; 764 case 16: 765 #line 112 "varsyntax_calc1.y" 766 { 767 yyval.vval.hi = yyval.vval.lo = yystack.l_mark[0].dval; 768 } 769 break; 770 case 17: 771 #line 116 "varsyntax_calc1.y" 772 { 773 yyval.vval.lo = yystack.l_mark[-3].dval; 774 yyval.vval.hi = yystack.l_mark[-1].dval; 775 if ( yyval.vval.lo > yyval.vval.hi ) 776 { 777 (void) printf("interval out of order\n"); 778 YYERROR; 779 } 780 } 781 break; 782 case 18: 783 #line 126 "varsyntax_calc1.y" 784 { 785 yyval.vval = vreg[yystack.l_mark[0].ival]; 786 } 787 break; 788 case 19: 789 #line 130 "varsyntax_calc1.y" 790 { 791 yyval.vval.hi = yystack.l_mark[-2].vval.hi + yystack.l_mark[0].vval.hi; 792 yyval.vval.lo = yystack.l_mark[-2].vval.lo + yystack.l_mark[0].vval.lo; 793 } 794 break; 795 case 20: 796 #line 135 "varsyntax_calc1.y" 797 { 798 yyval.vval.hi = yystack.l_mark[-2].dval + yystack.l_mark[0].vval.hi; 799 yyval.vval.lo = yystack.l_mark[-2].dval + yystack.l_mark[0].vval.lo; 800 } 801 break; 802 case 21: 803 #line 140 "varsyntax_calc1.y" 804 { 805 yyval.vval.hi = yystack.l_mark[-2].vval.hi - yystack.l_mark[0].vval.lo; 806 yyval.vval.lo = yystack.l_mark[-2].vval.lo - yystack.l_mark[0].vval.hi; 807 } 808 break; 809 case 22: 810 #line 145 "varsyntax_calc1.y" 811 { 812 yyval.vval.hi = yystack.l_mark[-2].dval - yystack.l_mark[0].vval.lo; 813 yyval.vval.lo = yystack.l_mark[-2].dval - yystack.l_mark[0].vval.hi; 814 } 815 break; 816 case 23: 817 #line 150 "varsyntax_calc1.y" 818 { 819 yyval.vval = vmul( yystack.l_mark[-2].vval.lo, yystack.l_mark[-2].vval.hi, yystack.l_mark[0].vval ); 820 } 821 break; 822 case 24: 823 #line 154 "varsyntax_calc1.y" 824 { 825 yyval.vval = vmul (yystack.l_mark[-2].dval, yystack.l_mark[-2].dval, yystack.l_mark[0].vval ); 826 } 827 break; 828 case 25: 829 #line 158 "varsyntax_calc1.y" 830 { 831 if (dcheck(yystack.l_mark[0].vval)) YYERROR; 832 yyval.vval = vdiv ( yystack.l_mark[-2].vval.lo, yystack.l_mark[-2].vval.hi, yystack.l_mark[0].vval ); 833 } 834 break; 835 case 26: 836 #line 163 "varsyntax_calc1.y" 837 { 838 if (dcheck ( yystack.l_mark[0].vval )) YYERROR; 839 yyval.vval = vdiv (yystack.l_mark[-2].dval, yystack.l_mark[-2].dval, yystack.l_mark[0].vval ); 840 } 841 break; 842 case 27: 843 #line 168 "varsyntax_calc1.y" 844 { 845 yyval.vval.hi = -yystack.l_mark[0].vval.lo; 846 yyval.vval.lo = -yystack.l_mark[0].vval.hi; 847 } 848 break; 849 case 28: 850 #line 173 "varsyntax_calc1.y" 851 { 852 yyval.vval = yystack.l_mark[-1].vval; 853 } 854 break; 855 #line 854 "varsyntax_calc1.tab.c" 856 } 857 yystack.s_mark -= yym; 858 yystate = *yystack.s_mark; 859 yystack.l_mark -= yym; 860 yym = yylhs[yyn]; 861 if (yystate == 0 && yym == 0) 862 { 863 #if YYDEBUG 864 if (yydebug) 865 printf("%sdebug: after reduction, shifting from state 0 to\ 866 state %d\n", YYPREFIX, YYFINAL); 867 #endif 868 yystate = YYFINAL; 869 *++yystack.s_mark = YYFINAL; 870 *++yystack.l_mark = yyval; 871 if (yychar < 0) 872 { 873 yychar = YYLEX; 874 if (yychar < 0) yychar = YYEOF; 875 #if YYDEBUG 876 if (yydebug) 877 { 878 if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN]; 879 printf("%sdebug: state %d, reading %d (%s)\n", 880 YYPREFIX, YYFINAL, yychar, yys); 881 } 882 #endif 883 } 884 if (yychar == YYEOF) goto yyaccept; 885 goto yyloop; 886 } 887 if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 && 888 yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate) 889 yystate = yytable[yyn]; 890 else 891 yystate = yydgoto[yym]; 892 #if YYDEBUG 893 if (yydebug) 894 printf("%sdebug: after reduction, shifting from state %d \ 895 to state %d\n", YYPREFIX, *yystack.s_mark, yystate); 896 #endif 897 if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow; 898 *++yystack.s_mark = (YYINT) yystate; 899 *++yystack.l_mark = yyval; 900 goto yyloop; 901 902 yyoverflow: 903 YYERROR_CALL("yacc stack overflow"); 904 905 yyabort: 906 yyfreestack(&yystack); 907 return (1); 908 909 yyaccept: 910 yyfreestack(&yystack); 911 return (0); 912 } 913