1 /* $Id: defs.h,v 1.57 2017/04/30 23:29:11 tom Exp $ */ 2 3 #ifdef HAVE_CONFIG_H 4 #include <config.h> 5 #endif 6 7 #include <limits.h> 8 #include <stdlib.h> 9 #include <string.h> 10 #include <errno.h> 11 #include <assert.h> 12 #include <ctype.h> 13 #include <stdio.h> 14 15 #if defined(__cplusplus) /* __cplusplus, etc. */ 16 #define class myClass 17 #endif 18 19 #define YYMAJOR 1 20 #define YYMINOR 9 21 22 #define CONCAT(first,second) first #second 23 #define CONCAT1(string,number) CONCAT(string, number) 24 #define CONCAT2(first,second) #first "." #second 25 26 #ifdef YYPATCH 27 #define VSTRING(a,b) CONCAT2(a,b) CONCAT1(" ",YYPATCH) 28 #else 29 #define VSTRING(a,b) CONCAT2(a,b) 30 #endif 31 32 #define VERSION VSTRING(YYMAJOR, YYMINOR) 33 34 /* machine-dependent definitions: */ 35 36 /* MAXCHAR is the largest unsigned character value */ 37 /* MAXTABLE is the maximum table size */ 38 /* YYINT is the smallest C integer type that can be */ 39 /* used to address a table of size MAXTABLE */ 40 /* MAXYYINT is the largest value of a YYINT */ 41 /* MINYYINT is the most negative value of a YYINT */ 42 /* BITS_PER_WORD is the number of bits in a C unsigned */ 43 /* WORDSIZE computes the number of words needed to */ 44 /* store n bits */ 45 /* BIT returns the value of the n-th bit starting */ 46 /* from r (0-indexed) */ 47 /* SETBIT sets the n-th bit starting from r */ 48 49 #define MAXCHAR UCHAR_MAX 50 #ifndef MAXTABLE 51 #define MAXTABLE 32500 52 #endif 53 #if MAXTABLE <= SHRT_MAX 54 #define YYINT short 55 #define MAXYYINT SHRT_MAX 56 #define MINYYINT SHRT_MIN 57 #elif MAXTABLE <= INT_MAX 58 #define YYINT int 59 #define MAXYYINT INT_MAX 60 #define MINYYINT INT_MIN 61 #else 62 #error "MAXTABLE is too large for this machine architecture!" 63 #endif 64 65 #define BITS_PER_WORD ((int) sizeof (unsigned) * CHAR_BIT) 66 #define WORDSIZE(n) (((n)+(BITS_PER_WORD-1))/BITS_PER_WORD) 67 #define BIT(r, n) ((((r)[(n)/BITS_PER_WORD])>>((n)&(BITS_PER_WORD-1)))&1) 68 #define SETBIT(r, n) ((r)[(n)/BITS_PER_WORD]|=((unsigned)1<<((n)&(BITS_PER_WORD-1)))) 69 70 /* character names */ 71 72 #define NUL '\0' /* the null character */ 73 #define NEWLINE '\n' /* line feed */ 74 #define SP ' ' /* space */ 75 #define BS '\b' /* backspace */ 76 #define HT '\t' /* horizontal tab */ 77 #define VT '\013' /* vertical tab */ 78 #define CR '\r' /* carriage return */ 79 #define FF '\f' /* form feed */ 80 #define QUOTE '\'' /* single quote */ 81 #define DOUBLE_QUOTE '\"' /* double quote */ 82 #define BACKSLASH '\\' /* backslash */ 83 84 #define UCH(c) (unsigned char)(c) 85 86 /* defines for constructing filenames */ 87 88 #if defined(VMS) 89 #define CODE_SUFFIX "_code.c" 90 #define DEFINES_SUFFIX "_tab.h" 91 #define EXTERNS_SUFFIX "_tab.i" 92 #define OUTPUT_SUFFIX "_tab.c" 93 #else 94 #define CODE_SUFFIX ".code.c" 95 #define DEFINES_SUFFIX ".tab.h" 96 #define EXTERNS_SUFFIX ".tab.i" 97 #define OUTPUT_SUFFIX ".tab.c" 98 #endif 99 #define VERBOSE_SUFFIX ".output" 100 #define GRAPH_SUFFIX ".dot" 101 102 /* keyword codes */ 103 104 #define TOKEN 0 105 #define LEFT 1 106 #define RIGHT 2 107 #define NONASSOC 3 108 #define MARK 4 109 #define TEXT 5 110 #define TYPE 6 111 #define START 7 112 #define UNION 8 113 #define IDENT 9 114 #define EXPECT 10 115 #define EXPECT_RR 11 116 #define PURE_PARSER 12 117 #define PARSE_PARAM 13 118 #define LEX_PARAM 14 119 #define POSIX_YACC 15 120 #define TOKEN_TABLE 16 121 #define ERROR_VERBOSE 17 122 #define XXXDEBUG 18 123 124 #if defined(YYBTYACC) 125 #define LOCATIONS 19 126 #define DESTRUCTOR 20 127 #define INITIAL_ACTION 21 128 #endif 129 130 /* symbol classes */ 131 132 #define UNKNOWN 0 133 #define TERM 1 134 #define NONTERM 2 135 #define ACTION 3 136 #define ARGUMENT 4 137 138 /* the undefined value */ 139 140 #define UNDEFINED (-1) 141 142 /* action codes */ 143 144 #define SHIFT 1 145 #define REDUCE 2 146 147 /* character macros */ 148 149 #define IS_IDENT(c) (isalnum(c) || (c) == '_' || (c) == '.' || (c) == '$') 150 #define IS_OCTAL(c) ((c) >= '0' && (c) <= '7') 151 #define NUMERIC_VALUE(c) ((c) - '0') 152 153 /* symbol macros */ 154 155 #define ISTOKEN(s) ((s) < start_symbol) 156 #define ISVAR(s) ((s) >= start_symbol) 157 158 /* storage allocation macros */ 159 160 #define CALLOC(k,n) (calloc((size_t)(k),(size_t)(n))) 161 #define FREE(x) (free((char*)(x))) 162 #define MALLOC(n) (malloc((size_t)(n))) 163 #define TCMALLOC(t,n) ((t*) calloc((size_t)(n), sizeof(t))) 164 #define TMALLOC(t,n) ((t*) malloc((size_t)(n) * sizeof(t))) 165 #define NEW(t) ((t*)allocate(sizeof(t))) 166 #define NEW2(n,t) ((t*)allocate(((size_t)(n)*sizeof(t)))) 167 #define REALLOC(p,n) (realloc((char*)(p),(size_t)(n))) 168 #define TREALLOC(t,p,n) ((t*)realloc((char*)(p), (size_t)(n) * sizeof(t))) 169 170 #define DO_FREE(x) if (x) { FREE(x); x = 0; } 171 172 #define NO_SPACE(p) if (p == 0) no_space(); assert(p != 0) 173 174 /* messages */ 175 #define PLURAL(n) ((n) > 1 ? "s" : "") 176 177 /* 178 * Features which depend indirectly on the btyacc configuration, but are not 179 * essential. 180 */ 181 #if defined(YYBTYACC) 182 #define USE_HEADER_GUARDS 1 183 #else 184 #define USE_HEADER_GUARDS 0 185 #endif 186 187 typedef char Assoc_t; 188 typedef char Class_t; 189 typedef YYINT Index_t; 190 typedef YYINT Value_t; 191 192 /* the structure of a symbol table entry */ 193 194 typedef struct bucket bucket; 195 struct bucket 196 { 197 struct bucket *link; 198 struct bucket *next; 199 char *name; 200 char *tag; 201 #if defined(YYBTYACC) 202 char **argnames; 203 char **argtags; 204 int args; 205 char *destructor; 206 #endif 207 Value_t value; 208 Index_t index; 209 Value_t prec; 210 Class_t class; 211 Assoc_t assoc; 212 }; 213 214 /* the structure of the LR(0) state machine */ 215 216 typedef struct core core; 217 struct core 218 { 219 struct core *next; 220 struct core *link; 221 Value_t number; 222 Value_t accessing_symbol; 223 Value_t nitems; 224 Value_t items[1]; 225 }; 226 227 /* the structure used to record shifts */ 228 229 typedef struct shifts shifts; 230 struct shifts 231 { 232 struct shifts *next; 233 Value_t number; 234 Value_t nshifts; 235 Value_t shift[1]; 236 }; 237 238 /* the structure used to store reductions */ 239 240 typedef struct reductions reductions; 241 struct reductions 242 { 243 struct reductions *next; 244 Value_t number; 245 Value_t nreds; 246 Value_t rules[1]; 247 }; 248 249 /* the structure used to represent parser actions */ 250 251 typedef struct action action; 252 struct action 253 { 254 struct action *next; 255 Value_t symbol; 256 Value_t number; 257 Value_t prec; 258 char action_code; 259 Assoc_t assoc; 260 char suppressed; 261 }; 262 263 /* the structure used to store parse/lex parameters */ 264 typedef struct param param; 265 struct param 266 { 267 struct param *next; 268 char *name; /* parameter name */ 269 char *type; /* everything before parameter name */ 270 char *type2; /* everything after parameter name */ 271 }; 272 273 /* global variables */ 274 275 extern char dflag; 276 extern char gflag; 277 extern char iflag; 278 extern char lflag; 279 extern char rflag; 280 extern char sflag; 281 extern char tflag; 282 extern char vflag; 283 extern const char *symbol_prefix; 284 285 extern const char *myname; 286 extern char *cptr; 287 extern char *line; 288 extern int lineno; 289 extern int outline; 290 extern int exit_code; 291 extern int pure_parser; 292 extern int token_table; 293 extern int error_verbose; 294 #if defined(YYBTYACC) 295 extern int locations; 296 extern int backtrack; 297 extern int destructor; 298 extern char *initial_action; 299 #endif 300 301 extern const char *const banner[]; 302 extern const char *const xdecls[]; 303 extern const char *const tables[]; 304 extern const char *const global_vars[]; 305 extern const char *const impure_vars[]; 306 extern const char *const hdr_defs[]; 307 extern const char *const hdr_vars[]; 308 extern const char *const body_1[]; 309 extern const char *const body_vars[]; 310 extern const char *const init_vars[]; 311 extern const char *const body_2[]; 312 extern const char *const body_3[]; 313 extern const char *const trailer[]; 314 315 extern char *code_file_name; 316 extern char *input_file_name; 317 extern size_t input_file_name_len; 318 extern char *defines_file_name; 319 extern char *externs_file_name; 320 321 extern FILE *action_file; 322 extern FILE *code_file; 323 extern FILE *defines_file; 324 extern FILE *externs_file; 325 extern FILE *input_file; 326 extern FILE *output_file; 327 extern FILE *text_file; 328 extern FILE *union_file; 329 extern FILE *verbose_file; 330 extern FILE *graph_file; 331 332 extern Value_t nitems; 333 extern Value_t nrules; 334 extern Value_t nsyms; 335 extern Value_t ntokens; 336 extern Value_t nvars; 337 extern int ntags; 338 339 extern char unionized; 340 extern char line_format[]; 341 342 extern Value_t start_symbol; 343 extern char **symbol_name; 344 extern char **symbol_pname; 345 extern Value_t *symbol_value; 346 extern Value_t *symbol_prec; 347 extern char *symbol_assoc; 348 349 #if defined(YYBTYACC) 350 extern Value_t *symbol_pval; 351 extern char **symbol_destructor; 352 extern char **symbol_type_tag; 353 #endif 354 355 extern Value_t *ritem; 356 extern Value_t *rlhs; 357 extern Value_t *rrhs; 358 extern Value_t *rprec; 359 extern Assoc_t *rassoc; 360 361 extern Value_t **derives; 362 extern char *nullable; 363 364 extern bucket *first_symbol; 365 extern bucket *last_symbol; 366 367 extern int nstates; 368 extern core *first_state; 369 extern shifts *first_shift; 370 extern reductions *first_reduction; 371 extern Value_t *accessing_symbol; 372 extern core **state_table; 373 extern shifts **shift_table; 374 extern reductions **reduction_table; 375 extern unsigned *LA; 376 extern Value_t *LAruleno; 377 extern Value_t *lookaheads; 378 extern Value_t *goto_base; 379 extern Value_t *goto_map; 380 extern Value_t *from_state; 381 extern Value_t *to_state; 382 383 extern action **parser; 384 extern int SRexpect; 385 extern int RRexpect; 386 extern int SRtotal; 387 extern int RRtotal; 388 extern Value_t *SRconflicts; 389 extern Value_t *RRconflicts; 390 extern Value_t *defred; 391 extern Value_t *rules_used; 392 extern Value_t nunused; 393 extern Value_t final_state; 394 395 extern Value_t *itemset; 396 extern Value_t *itemsetend; 397 extern unsigned *ruleset; 398 399 extern param *lex_param; 400 extern param *parse_param; 401 402 /* global functions */ 403 404 #ifndef GCC_NORETURN 405 #if defined(__dead2) 406 #define GCC_NORETURN __dead2 407 #elif defined(__dead) 408 #define GCC_NORETURN __dead 409 #else 410 #define GCC_NORETURN /* nothing */ 411 #endif 412 #endif 413 414 #ifndef GCC_UNUSED 415 #if defined(__unused) 416 #define GCC_UNUSED __unused 417 #else 418 #define GCC_UNUSED /* nothing */ 419 #endif 420 #endif 421 422 #ifndef GCC_PRINTFLIKE 423 #define GCC_PRINTFLIKE(fmt,var) /*nothing */ 424 #endif 425 426 /* closure.c */ 427 extern void closure(Value_t *nucleus, int n); 428 extern void finalize_closure(void); 429 extern void set_first_derives(void); 430 431 /* error.c */ 432 struct ainfo 433 { 434 int a_lineno; 435 char *a_line; 436 char *a_cptr; 437 }; 438 439 extern void arg_number_disagree_warning(int a_lineno, char *a_name); 440 extern void arg_type_disagree_warning(int a_lineno, int i, char *a_name); 441 extern void at_error(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN; 442 extern void at_warning(int a_lineno, int i); 443 extern void bad_formals(void) GCC_NORETURN; 444 extern void default_action_warning(char *s); 445 extern void destructor_redeclared_warning(const struct ainfo *); 446 extern void dollar_error(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN; 447 extern void dollar_warning(int a_lineno, int i); 448 extern void fatal(const char *msg) GCC_NORETURN; 449 extern void illegal_character(char *c_cptr) GCC_NORETURN; 450 extern void illegal_tag(int t_lineno, char *t_line, char *t_cptr) GCC_NORETURN; 451 extern void missing_brace(void) GCC_NORETURN; 452 extern void no_grammar(void) GCC_NORETURN; 453 extern void no_space(void) GCC_NORETURN; 454 extern void open_error(const char *filename) GCC_NORETURN; 455 extern void over_unionized(char *u_cptr) GCC_NORETURN; 456 extern void prec_redeclared(void); 457 extern void reprec_warning(char *s); 458 extern void restarted_warning(void); 459 extern void retyped_warning(char *s); 460 extern void revalued_warning(char *s); 461 extern void start_requires_args(char *a_name); 462 extern void syntax_error(int st_lineno, char *st_line, char *st_cptr) GCC_NORETURN; 463 extern void terminal_lhs(int s_lineno) GCC_NORETURN; 464 extern void terminal_start(char *s) GCC_NORETURN; 465 extern void tokenized_start(char *s) GCC_NORETURN; 466 extern void undefined_goal(char *s) GCC_NORETURN; 467 extern void undefined_symbol_warning(char *s); 468 extern void unexpected_EOF(void) GCC_NORETURN; 469 extern void unknown_arg_warning(int d_lineno, const char *dlr_opt, const char *d_arg, const char *d_line, const char *d_cptr); 470 extern void unknown_rhs(int i) GCC_NORETURN; 471 extern void unsupported_flag_warning(const char *flag, const char *details); 472 extern void unterminated_action(const struct ainfo *) GCC_NORETURN; 473 extern void unterminated_comment(const struct ainfo *) GCC_NORETURN; 474 extern void unterminated_string(const struct ainfo *) GCC_NORETURN; 475 extern void unterminated_text(const struct ainfo *) GCC_NORETURN; 476 extern void unterminated_union(const struct ainfo *) GCC_NORETURN; 477 extern void untyped_arg_warning(int a_lineno, const char *dlr_opt, const char *a_name); 478 extern void untyped_lhs(void) GCC_NORETURN; 479 extern void untyped_rhs(int i, char *s) GCC_NORETURN; 480 extern void used_reserved(char *s) GCC_NORETURN; 481 extern void unterminated_arglist(const struct ainfo *) GCC_NORETURN; 482 extern void wrong_number_args_warning(const char *which, const char *a_name); 483 extern void wrong_type_for_arg_warning(int i, char *a_name); 484 485 /* graph.c */ 486 extern void graph(void); 487 488 /* lalr.c */ 489 extern void lalr(void); 490 491 /* lr0.c */ 492 extern void lr0(void); 493 extern void show_cores(void); 494 extern void show_ritems(void); 495 extern void show_rrhs(void); 496 extern void show_shifts(void); 497 498 /* main.c */ 499 extern void *allocate(size_t n); 500 extern void done(int k) GCC_NORETURN; 501 502 /* mkpar.c */ 503 extern void free_parser(void); 504 extern void make_parser(void); 505 506 /* mstring.c */ 507 struct mstring 508 { 509 char *base, *ptr, *end; 510 }; 511 512 extern void msprintf(struct mstring *, const char *, ...) GCC_PRINTFLIKE(2,3); 513 extern int mputchar(struct mstring *, int); 514 extern struct mstring *msnew(void); 515 extern char *msdone(struct mstring *); 516 extern int strnscmp(const char *, const char *); 517 extern unsigned int strnshash(const char *); 518 519 #define mputc(m, ch) (((m)->ptr == (m)->end) \ 520 ? mputchar(m,ch) \ 521 : (*(m)->ptr++ = (char) (ch))) 522 523 /* output.c */ 524 extern void output(void); 525 526 /* reader.c */ 527 extern void reader(void); 528 529 /* skeleton.c (generated by skel2c) */ 530 extern void write_section(FILE * fp, const char *const section[]); 531 532 /* symtab.c */ 533 extern bucket *make_bucket(const char *); 534 extern bucket *lookup(const char *); 535 extern void create_symbol_table(void); 536 extern void free_symbol_table(void); 537 extern void free_symbols(void); 538 539 /* verbose.c */ 540 extern void verbose(void); 541 542 /* warshall.c */ 543 extern void reflexive_transitive_closure(unsigned *R, int n); 544 545 #ifdef DEBUG 546 /* closure.c */ 547 extern void print_closure(int n); 548 extern void print_EFF(void); 549 extern void print_first_derives(void); 550 /* lr0.c */ 551 extern void print_derives(void); 552 #endif 553 554 #ifdef NO_LEAKS 555 extern void lr0_leaks(void); 556 extern void lalr_leaks(void); 557 extern void mkpar_leaks(void); 558 extern void output_leaks(void); 559 extern void mstring_leaks(void); 560 extern void reader_leaks(void); 561 #endif 562