1 /* $Id: defs.h,v 1.51 2014/10/02 22:38:13 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 16 121 122 #if defined(YYBTYACC) 123 #define LOCATIONS 17 124 #define DESTRUCTOR 18 125 #endif 126 127 /* symbol classes */ 128 129 #define UNKNOWN 0 130 #define TERM 1 131 #define NONTERM 2 132 #define ACTION 3 133 #define ARGUMENT 4 134 135 /* the undefined value */ 136 137 #define UNDEFINED (-1) 138 139 /* action codes */ 140 141 #define SHIFT 1 142 #define REDUCE 2 143 144 /* character macros */ 145 146 #define IS_IDENT(c) (isalnum(c) || (c) == '_' || (c) == '.' || (c) == '$') 147 #define IS_OCTAL(c) ((c) >= '0' && (c) <= '7') 148 #define NUMERIC_VALUE(c) ((c) - '0') 149 150 /* symbol macros */ 151 152 #define ISTOKEN(s) ((s) < start_symbol) 153 #define ISVAR(s) ((s) >= start_symbol) 154 155 /* storage allocation macros */ 156 157 #define CALLOC(k,n) (calloc((size_t)(k),(size_t)(n))) 158 #define FREE(x) (free((char*)(x))) 159 #define MALLOC(n) (malloc((size_t)(n))) 160 #define TCMALLOC(t,n) ((t*) calloc((size_t)(n), sizeof(t))) 161 #define TMALLOC(t,n) ((t*) malloc((size_t)(n) * sizeof(t))) 162 #define NEW(t) ((t*)allocate(sizeof(t))) 163 #define NEW2(n,t) ((t*)allocate(((size_t)(n)*sizeof(t)))) 164 #define REALLOC(p,n) (realloc((char*)(p),(size_t)(n))) 165 #define TREALLOC(t,p,n) ((t*)realloc((char*)(p), (size_t)(n) * sizeof(t))) 166 167 #define DO_FREE(x) if (x) { FREE(x); x = 0; } 168 169 #define NO_SPACE(p) if (p == 0) no_space(); assert(p != 0) 170 171 /* messages */ 172 #define PLURAL(n) ((n) > 1 ? "s" : "") 173 174 /* 175 * Features which depend indirectly on the btyacc configuration, but are not 176 * essential. 177 */ 178 #if defined(YYBTYACC) 179 #define USE_HEADER_GUARDS 1 180 #else 181 #define USE_HEADER_GUARDS 0 182 #endif 183 184 typedef char Assoc_t; 185 typedef char Class_t; 186 typedef YYINT Index_t; 187 typedef YYINT Value_t; 188 189 /* the structure of a symbol table entry */ 190 191 typedef struct bucket bucket; 192 struct bucket 193 { 194 struct bucket *link; 195 struct bucket *next; 196 char *name; 197 char *tag; 198 #if defined(YYBTYACC) 199 char **argnames; 200 char **argtags; 201 int args; 202 char *destructor; 203 #endif 204 Value_t value; 205 Index_t index; 206 Value_t prec; 207 Class_t class; 208 Assoc_t assoc; 209 }; 210 211 /* the structure of the LR(0) state machine */ 212 213 typedef struct core core; 214 struct core 215 { 216 struct core *next; 217 struct core *link; 218 Value_t number; 219 Value_t accessing_symbol; 220 Value_t nitems; 221 Value_t items[1]; 222 }; 223 224 /* the structure used to record shifts */ 225 226 typedef struct shifts shifts; 227 struct shifts 228 { 229 struct shifts *next; 230 Value_t number; 231 Value_t nshifts; 232 Value_t shift[1]; 233 }; 234 235 /* the structure used to store reductions */ 236 237 typedef struct reductions reductions; 238 struct reductions 239 { 240 struct reductions *next; 241 Value_t number; 242 Value_t nreds; 243 Value_t rules[1]; 244 }; 245 246 /* the structure used to represent parser actions */ 247 248 typedef struct action action; 249 struct action 250 { 251 struct action *next; 252 Value_t symbol; 253 Value_t number; 254 Value_t prec; 255 char action_code; 256 Assoc_t assoc; 257 char suppressed; 258 }; 259 260 /* the structure used to store parse/lex parameters */ 261 typedef struct param param; 262 struct param 263 { 264 struct param *next; 265 char *name; /* parameter name */ 266 char *type; /* everything before parameter name */ 267 char *type2; /* everything after parameter name */ 268 }; 269 270 /* global variables */ 271 272 extern char dflag; 273 extern char gflag; 274 extern char iflag; 275 extern char lflag; 276 extern char rflag; 277 extern char sflag; 278 extern char tflag; 279 extern char vflag; 280 extern const char *symbol_prefix; 281 282 extern const char *myname; 283 extern char *cptr; 284 extern char *line; 285 extern int lineno; 286 extern int outline; 287 extern int exit_code; 288 extern int pure_parser; 289 extern int token_table; 290 #if defined(YYBTYACC) 291 extern int locations; 292 extern int backtrack; 293 extern int destructor; 294 #endif 295 296 extern const char *const banner[]; 297 extern const char *const xdecls[]; 298 extern const char *const tables[]; 299 extern const char *const global_vars[]; 300 extern const char *const impure_vars[]; 301 extern const char *const hdr_defs[]; 302 extern const char *const hdr_vars[]; 303 extern const char *const body_1[]; 304 extern const char *const body_vars[]; 305 extern const char *const body_2[]; 306 extern const char *const trailer[]; 307 308 extern char *code_file_name; 309 extern char *input_file_name; 310 extern char *defines_file_name; 311 extern char *externs_file_name; 312 313 extern FILE *action_file; 314 extern FILE *code_file; 315 extern FILE *defines_file; 316 extern FILE *externs_file; 317 extern FILE *input_file; 318 extern FILE *output_file; 319 extern FILE *text_file; 320 extern FILE *union_file; 321 extern FILE *verbose_file; 322 extern FILE *graph_file; 323 324 extern Value_t nitems; 325 extern Value_t nrules; 326 extern Value_t nsyms; 327 extern Value_t ntokens; 328 extern Value_t nvars; 329 extern int ntags; 330 331 extern char unionized; 332 extern char line_format[]; 333 334 extern Value_t start_symbol; 335 extern char **symbol_name; 336 extern char **symbol_pname; 337 extern Value_t *symbol_value; 338 extern Value_t *symbol_prec; 339 extern char *symbol_assoc; 340 341 #if defined(YYBTYACC) 342 extern Value_t *symbol_pval; 343 extern char **symbol_destructor; 344 extern char **symbol_type_tag; 345 #endif 346 347 extern Value_t *ritem; 348 extern Value_t *rlhs; 349 extern Value_t *rrhs; 350 extern Value_t *rprec; 351 extern Assoc_t *rassoc; 352 353 extern Value_t **derives; 354 extern char *nullable; 355 356 extern bucket *first_symbol; 357 extern bucket *last_symbol; 358 359 extern int nstates; 360 extern core *first_state; 361 extern shifts *first_shift; 362 extern reductions *first_reduction; 363 extern Value_t *accessing_symbol; 364 extern core **state_table; 365 extern shifts **shift_table; 366 extern reductions **reduction_table; 367 extern unsigned *LA; 368 extern Value_t *LAruleno; 369 extern Value_t *lookaheads; 370 extern Value_t *goto_base; 371 extern Value_t *goto_map; 372 extern Value_t *from_state; 373 extern Value_t *to_state; 374 375 extern action **parser; 376 extern int SRexpect; 377 extern int RRexpect; 378 extern int SRtotal; 379 extern int RRtotal; 380 extern Value_t *SRconflicts; 381 extern Value_t *RRconflicts; 382 extern Value_t *defred; 383 extern Value_t *rules_used; 384 extern Value_t nunused; 385 extern Value_t final_state; 386 387 extern Value_t *itemset; 388 extern Value_t *itemsetend; 389 extern unsigned *ruleset; 390 391 extern param *lex_param; 392 extern param *parse_param; 393 394 /* global functions */ 395 396 #ifndef GCC_NORETURN 397 #if defined(__dead2) 398 #define GCC_NORETURN __dead2 399 #elif defined(__dead) 400 #define GCC_NORETURN __dead 401 #else 402 #define GCC_NORETURN /* nothing */ 403 #endif 404 #endif 405 406 #ifndef GCC_UNUSED 407 #if defined(__unused) 408 #define GCC_UNUSED __unused 409 #else 410 #define GCC_UNUSED /* nothing */ 411 #endif 412 #endif 413 414 #ifndef GCC_PRINTFLIKE 415 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/ 416 #endif 417 418 /* closure.c */ 419 extern void closure(Value_t * nucleus, int n); 420 extern void finalize_closure(void); 421 extern void set_first_derives(void); 422 423 /* error.c */ 424 extern void arg_number_disagree_warning(int a_lineno, char *a_name); 425 extern void arg_type_disagree_warning(int a_lineno, int i, char *a_name); 426 extern void at_error(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN; 427 extern void at_warning(int a_lineno, int i); 428 extern void bad_formals(void) GCC_NORETURN; 429 extern void default_action_warning(void); 430 extern void destructor_redeclared_warning(int a_lineno, char *a_line, char *a_cptr); 431 extern void dollar_error(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN; 432 extern void dollar_warning(int a_lineno, int i); 433 extern void fatal(const char *msg) GCC_NORETURN; 434 extern void illegal_character(char *c_cptr) GCC_NORETURN; 435 extern void illegal_tag(int t_lineno, char *t_line, char *t_cptr) GCC_NORETURN; 436 extern void missing_brace(void) GCC_NORETURN; 437 extern void no_grammar(void) GCC_NORETURN; 438 extern void no_space(void) GCC_NORETURN; 439 extern void open_error(const char *filename) GCC_NORETURN; 440 extern void over_unionized(char *u_cptr) GCC_NORETURN; 441 extern void prec_redeclared(void); 442 extern void reprec_warning(char *s); 443 extern void restarted_warning(void); 444 extern void retyped_warning(char *s); 445 extern void revalued_warning(char *s); 446 extern void start_requires_args(char *a_name); 447 extern void syntax_error(int st_lineno, char *st_line, char *st_cptr) GCC_NORETURN; 448 extern void terminal_lhs(int s_lineno) GCC_NORETURN; 449 extern void terminal_start(char *s) GCC_NORETURN; 450 extern void tokenized_start(char *s) GCC_NORETURN; 451 extern void undefined_goal(char *s) GCC_NORETURN; 452 extern void undefined_symbol_warning(char *s); 453 extern void unexpected_EOF(void) GCC_NORETURN; 454 extern void unknown_arg_warning(int d_lineno, const char *dlr_opt, const char *d_arg, const char *d_line, const char *d_cptr); 455 extern void unknown_rhs(int i) GCC_NORETURN; 456 extern void unsupported_flag_warning(const char *flag, const char *details); 457 extern void unterminated_action(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN; 458 extern void unterminated_comment(int c_lineno, char *c_line, char *c_cptr) GCC_NORETURN; 459 extern void unterminated_string(int s_lineno, char *s_line, char *s_cptr) GCC_NORETURN; 460 extern void unterminated_text(int t_lineno, char *t_line, char *t_cptr) GCC_NORETURN; 461 extern void unterminated_union(int u_lineno, char *u_line, char *u_cptr) GCC_NORETURN; 462 extern void untyped_arg_warning(int a_lineno, const char *dlr_opt, const char *a_name); 463 extern void untyped_lhs(void) GCC_NORETURN; 464 extern void untyped_rhs(int i, char *s) GCC_NORETURN; 465 extern void used_reserved(char *s) GCC_NORETURN; 466 extern void unterminated_arglist(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN; 467 extern void wrong_number_args_warning(const char *which, const char *a_name); 468 extern void wrong_type_for_arg_warning(int i, char *a_name); 469 470 /* graph.c */ 471 extern void graph(void); 472 473 /* lalr.c */ 474 extern void lalr(void); 475 476 /* lr0.c */ 477 extern void lr0(void); 478 extern void show_cores(void); 479 extern void show_ritems(void); 480 extern void show_rrhs(void); 481 extern void show_shifts(void); 482 483 /* main.c */ 484 extern void *allocate(size_t n); 485 extern void done(int k) GCC_NORETURN; 486 487 /* mkpar.c */ 488 extern void free_parser(void); 489 extern void make_parser(void); 490 491 /* mstring.c */ 492 struct mstring 493 { 494 char *base, *ptr, *end; 495 }; 496 497 extern void msprintf(struct mstring *, const char *, ...) GCC_PRINTFLIKE(2,3); 498 extern int mputchar(struct mstring *, int); 499 extern struct mstring *msnew(void); 500 extern char *msdone(struct mstring *); 501 extern int strnscmp(const char *, const char *); 502 extern unsigned int strnshash(const char *); 503 504 #define mputc(m, ch) (((m)->ptr == (m)->end) \ 505 ? mputchar(m,ch) \ 506 : (*(m)->ptr++ = (char) (ch))) 507 508 /* output.c */ 509 extern void output(void); 510 511 /* reader.c */ 512 extern void reader(void); 513 514 /* skeleton.c (generated by skel2c) */ 515 extern void write_section(FILE * fp, const char *const section[]); 516 517 /* symtab.c */ 518 extern bucket *make_bucket(const char *); 519 extern bucket *lookup(const char *); 520 extern void create_symbol_table(void); 521 extern void free_symbol_table(void); 522 extern void free_symbols(void); 523 524 /* verbose.c */ 525 extern void verbose(void); 526 527 /* warshall.c */ 528 extern void reflexive_transitive_closure(unsigned *R, int n); 529 530 #ifdef DEBUG 531 /* closure.c */ 532 extern void print_closure(int n); 533 extern void print_EFF(void); 534 extern void print_first_derives(void); 535 /* lr0.c */ 536 extern void print_derives(void); 537 #endif 538 539 #ifdef NO_LEAKS 540 extern void lr0_leaks(void); 541 extern void lalr_leaks(void); 542 extern void mkpar_leaks(void); 543 extern void output_leaks(void); 544 extern void mstring_leaks(void); 545 extern void reader_leaks(void); 546 #endif 547