1 /* $Id: defs.h,v 1.49 2014/04/22 23:34:34 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 TMALLOC(t,n) ((t*) malloc((size_t)(n) * sizeof(t))) 161 #define NEW(t) ((t*)allocate(sizeof(t))) 162 #define NEW2(n,t) ((t*)allocate(((size_t)(n)*sizeof(t)))) 163 #define REALLOC(p,n) (realloc((char*)(p),(size_t)(n))) 164 #define TREALLOC(t,p,n) ((t*)realloc((char*)(p), (size_t)(n) * sizeof(t))) 165 166 #define DO_FREE(x) if (x) { FREE(x); x = 0; } 167 168 #define NO_SPACE(p) if (p == 0) no_space(); assert(p != 0) 169 170 /* messages */ 171 #define PLURAL(n) ((n) > 1 ? "s" : "") 172 173 /* 174 * Features which depend indirectly on the btyacc configuration, but are not 175 * essential. 176 */ 177 #if defined(YYBTYACC) 178 #define USE_HEADER_GUARDS 1 179 #else 180 #define USE_HEADER_GUARDS 0 181 #endif 182 183 typedef char Assoc_t; 184 typedef char Class_t; 185 typedef YYINT Index_t; 186 typedef YYINT Value_t; 187 188 /* the structure of a symbol table entry */ 189 190 typedef struct bucket bucket; 191 struct bucket 192 { 193 struct bucket *link; 194 struct bucket *next; 195 char *name; 196 char *tag; 197 #if defined(YYBTYACC) 198 char **argnames; 199 char **argtags; 200 int args; 201 char *destructor; 202 #endif 203 Value_t value; 204 Index_t index; 205 Value_t prec; 206 Class_t class; 207 Assoc_t assoc; 208 }; 209 210 /* the structure of the LR(0) state machine */ 211 212 typedef struct core core; 213 struct core 214 { 215 struct core *next; 216 struct core *link; 217 Value_t number; 218 Value_t accessing_symbol; 219 Value_t nitems; 220 Value_t items[1]; 221 }; 222 223 /* the structure used to record shifts */ 224 225 typedef struct shifts shifts; 226 struct shifts 227 { 228 struct shifts *next; 229 Value_t number; 230 Value_t nshifts; 231 Value_t shift[1]; 232 }; 233 234 /* the structure used to store reductions */ 235 236 typedef struct reductions reductions; 237 struct reductions 238 { 239 struct reductions *next; 240 Value_t number; 241 Value_t nreds; 242 Value_t rules[1]; 243 }; 244 245 /* the structure used to represent parser actions */ 246 247 typedef struct action action; 248 struct action 249 { 250 struct action *next; 251 Value_t symbol; 252 Value_t number; 253 Value_t prec; 254 char action_code; 255 Assoc_t assoc; 256 char suppressed; 257 }; 258 259 /* the structure used to store parse/lex parameters */ 260 typedef struct param param; 261 struct param 262 { 263 struct param *next; 264 char *name; /* parameter name */ 265 char *type; /* everything before parameter name */ 266 char *type2; /* everything after parameter name */ 267 }; 268 269 /* global variables */ 270 271 extern char dflag; 272 extern char gflag; 273 extern char iflag; 274 extern char lflag; 275 extern char rflag; 276 extern char sflag; 277 extern char tflag; 278 extern char vflag; 279 extern const char *symbol_prefix; 280 281 extern const char *myname; 282 extern char *cptr; 283 extern char *line; 284 extern int lineno; 285 extern int outline; 286 extern int exit_code; 287 extern int pure_parser; 288 extern int token_table; 289 #if defined(YYBTYACC) 290 extern int locations; 291 extern int backtrack; 292 extern int destructor; 293 #endif 294 295 extern const char *const banner[]; 296 extern const char *const xdecls[]; 297 extern const char *const tables[]; 298 extern const char *const global_vars[]; 299 extern const char *const impure_vars[]; 300 extern const char *const hdr_defs[]; 301 extern const char *const hdr_vars[]; 302 extern const char *const body_1[]; 303 extern const char *const body_vars[]; 304 extern const char *const body_2[]; 305 extern const char *const trailer[]; 306 307 extern char *code_file_name; 308 extern char *input_file_name; 309 extern char *defines_file_name; 310 extern char *externs_file_name; 311 312 extern FILE *action_file; 313 extern FILE *code_file; 314 extern FILE *defines_file; 315 extern FILE *externs_file; 316 extern FILE *input_file; 317 extern FILE *output_file; 318 extern FILE *text_file; 319 extern FILE *union_file; 320 extern FILE *verbose_file; 321 extern FILE *graph_file; 322 323 extern Value_t nitems; 324 extern Value_t nrules; 325 extern Value_t nsyms; 326 extern Value_t ntokens; 327 extern Value_t nvars; 328 extern int ntags; 329 330 extern char unionized; 331 extern char line_format[]; 332 333 extern Value_t start_symbol; 334 extern char **symbol_name; 335 extern char **symbol_pname; 336 extern Value_t *symbol_value; 337 extern Value_t *symbol_prec; 338 extern char *symbol_assoc; 339 340 #if defined(YYBTYACC) 341 extern Value_t *symbol_pval; 342 extern char **symbol_destructor; 343 extern char **symbol_type_tag; 344 #endif 345 346 extern Value_t *ritem; 347 extern Value_t *rlhs; 348 extern Value_t *rrhs; 349 extern Value_t *rprec; 350 extern Assoc_t *rassoc; 351 352 extern Value_t **derives; 353 extern char *nullable; 354 355 extern bucket *first_symbol; 356 extern bucket *last_symbol; 357 358 extern int nstates; 359 extern core *first_state; 360 extern shifts *first_shift; 361 extern reductions *first_reduction; 362 extern Value_t *accessing_symbol; 363 extern core **state_table; 364 extern shifts **shift_table; 365 extern reductions **reduction_table; 366 extern unsigned *LA; 367 extern Value_t *LAruleno; 368 extern Value_t *lookaheads; 369 extern Value_t *goto_map; 370 extern Value_t *from_state; 371 extern Value_t *to_state; 372 373 extern action **parser; 374 extern int SRexpect; 375 extern int RRexpect; 376 extern int SRtotal; 377 extern int RRtotal; 378 extern Value_t *SRconflicts; 379 extern Value_t *RRconflicts; 380 extern Value_t *defred; 381 extern Value_t *rules_used; 382 extern Value_t nunused; 383 extern Value_t final_state; 384 385 extern Value_t *itemset; 386 extern Value_t *itemsetend; 387 extern unsigned *ruleset; 388 389 extern param *lex_param; 390 extern param *parse_param; 391 392 /* global functions */ 393 394 #ifndef GCC_NORETURN 395 #if defined(__dead2) 396 #define GCC_NORETURN __dead2 397 #elif defined(__dead) 398 #define GCC_NORETURN __dead 399 #else 400 #define GCC_NORETURN /* nothing */ 401 #endif 402 #endif 403 404 #ifndef GCC_UNUSED 405 #if defined(__unused) 406 #define GCC_UNUSED __unused 407 #else 408 #define GCC_UNUSED /* nothing */ 409 #endif 410 #endif 411 412 #ifndef GCC_PRINTFLIKE 413 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/ 414 #endif 415 416 /* closure.c */ 417 extern void closure(Value_t * nucleus, int n); 418 extern void finalize_closure(void); 419 extern void set_first_derives(void); 420 421 /* error.c */ 422 extern void arg_number_disagree_warning(int a_lineno, char *a_name); 423 extern void arg_type_disagree_warning(int a_lineno, int i, char *a_name); 424 extern void at_error(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN; 425 extern void at_warning(int a_lineno, int i); 426 extern void bad_formals(void) GCC_NORETURN; 427 extern void default_action_warning(void); 428 extern void destructor_redeclared_warning(int a_lineno, char *a_line, char *a_cptr); 429 extern void dollar_error(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN; 430 extern void dollar_warning(int a_lineno, int i); 431 extern void fatal(const char *msg) GCC_NORETURN; 432 extern void illegal_character(char *c_cptr) GCC_NORETURN; 433 extern void illegal_tag(int t_lineno, char *t_line, char *t_cptr) GCC_NORETURN; 434 extern void missing_brace(void) GCC_NORETURN; 435 extern void no_grammar(void) GCC_NORETURN; 436 extern void no_space(void) GCC_NORETURN; 437 extern void open_error(const char *filename) GCC_NORETURN; 438 extern void over_unionized(char *u_cptr) GCC_NORETURN; 439 extern void prec_redeclared(void); 440 extern void reprec_warning(char *s); 441 extern void restarted_warning(void); 442 extern void retyped_warning(char *s); 443 extern void revalued_warning(char *s); 444 extern void start_requires_args(char *a_name); 445 extern void syntax_error(int st_lineno, char *st_line, char *st_cptr) GCC_NORETURN; 446 extern void terminal_lhs(int s_lineno) GCC_NORETURN; 447 extern void terminal_start(char *s) GCC_NORETURN; 448 extern void tokenized_start(char *s) GCC_NORETURN; 449 extern void undefined_goal(char *s) GCC_NORETURN; 450 extern void undefined_symbol_warning(char *s); 451 extern void unexpected_EOF(void) GCC_NORETURN; 452 extern void unknown_arg_warning(int d_lineno, const char *dlr_opt, const char *d_arg, const char *d_line, const char *d_cptr); 453 extern void unknown_rhs(int i) GCC_NORETURN; 454 extern void unsupported_flag_warning(const char *flag, const char *details); 455 extern void unterminated_action(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN; 456 extern void unterminated_comment(int c_lineno, char *c_line, char *c_cptr) GCC_NORETURN; 457 extern void unterminated_string(int s_lineno, char *s_line, char *s_cptr) GCC_NORETURN; 458 extern void unterminated_text(int t_lineno, char *t_line, char *t_cptr) GCC_NORETURN; 459 extern void unterminated_union(int u_lineno, char *u_line, char *u_cptr) GCC_NORETURN; 460 extern void untyped_arg_warning(int a_lineno, const char *dlr_opt, const char *a_name); 461 extern void untyped_lhs(void) GCC_NORETURN; 462 extern void untyped_rhs(int i, char *s) GCC_NORETURN; 463 extern void used_reserved(char *s) GCC_NORETURN; 464 extern void unterminated_arglist(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN; 465 extern void wrong_number_args_warning(const char *which, const char *a_name); 466 extern void wrong_type_for_arg_warning(int i, char *a_name); 467 468 /* graph.c */ 469 extern void graph(void); 470 471 /* lalr.c */ 472 extern void lalr(void); 473 474 /* lr0.c */ 475 extern void lr0(void); 476 extern void show_cores(void); 477 extern void show_ritems(void); 478 extern void show_rrhs(void); 479 extern void show_shifts(void); 480 481 /* main.c */ 482 extern void *allocate(size_t n); 483 extern void done(int k) GCC_NORETURN; 484 485 /* mkpar.c */ 486 extern void free_parser(void); 487 extern void make_parser(void); 488 489 /* mstring.c */ 490 struct mstring 491 { 492 char *base, *ptr, *end; 493 }; 494 495 extern void msprintf(struct mstring *, const char *, ...) GCC_PRINTFLIKE(2,3); 496 extern int mputchar(struct mstring *, int); 497 extern struct mstring *msnew(void); 498 extern char *msdone(struct mstring *); 499 extern int strnscmp(const char *, const char *); 500 extern unsigned int strnshash(const char *); 501 502 #define mputc(m, ch) (((m)->ptr == (m)->end) \ 503 ? mputchar(m,ch) \ 504 : (*(m)->ptr++ = (char) (ch))) 505 506 /* output.c */ 507 extern void output(void); 508 509 /* reader.c */ 510 extern void reader(void); 511 512 /* skeleton.c (generated by skel2c) */ 513 extern void write_section(FILE * fp, const char *const section[]); 514 515 /* symtab.c */ 516 extern bucket *make_bucket(const char *); 517 extern bucket *lookup(const char *); 518 extern void create_symbol_table(void); 519 extern void free_symbol_table(void); 520 extern void free_symbols(void); 521 522 /* verbose.c */ 523 extern void verbose(void); 524 525 /* warshall.c */ 526 extern void reflexive_transitive_closure(unsigned *R, int n); 527 528 #ifdef DEBUG 529 /* closure.c */ 530 extern void print_closure(int n); 531 extern void print_EFF(void); 532 extern void print_first_derives(void); 533 /* lr0.c */ 534 extern void print_derives(void); 535 #endif 536 537 #ifdef NO_LEAKS 538 extern void lr0_leaks(void); 539 extern void lalr_leaks(void); 540 extern void mkpar_leaks(void); 541 extern void output_leaks(void); 542 extern void mstring_leaks(void); 543 extern void reader_leaks(void); 544 #endif 545