1/* $Id: defs.h,v 1.37 2012/05/26 15:23:00 tom Exp $ */ 2 3#ifdef HAVE_CONFIG_H 4#include <config.h> 5#endif 6 7#include <stdlib.h> 8#include <string.h> 9#include <errno.h> 10#include <assert.h> 11#include <ctype.h> 12#include <stdio.h> 13 14#if defined(__cplusplus) /* __cplusplus, etc. */ 15#define class myClass 16#endif 17 18#define YYMAJOR 1 19#define YYMINOR 9 20 21#define CONCAT(first,second) first #second 22#define CONCAT1(string,number) CONCAT(string, number) 23#define CONCAT2(first,second) #first "." #second 24 25#ifdef YYPATCH 26#define VSTRING(a,b) CONCAT2(a,b) CONCAT1(" ",YYPATCH) 27#else 28#define VSTRING(a,b) CONCAT2(a,b) 29#endif 30 31#define VERSION VSTRING(YYMAJOR, YYMINOR) 32 33/* machine-dependent definitions */ 34/* the following definitions are for the Tahoe */ 35/* they might have to be changed for other machines */ 36 37/* MAXCHAR is the largest unsigned character value */ 38/* MAXSHORT is the largest value of a C short */ 39/* MINSHORT is the most negative value of a C short */ 40/* MAXTABLE is the maximum table size */ 41/* BITS_PER_WORD is the number of bits in a C unsigned */ 42/* WORDSIZE computes the number of words needed to */ 43/* store n bits */ 44/* BIT returns the value of the n-th bit starting */ 45/* from r (0-indexed) */ 46/* SETBIT sets the n-th bit starting from r */ 47 48#define MAXCHAR 255 49#define MAXSHORT 32767 50#define MINSHORT -32768 51#define MAXTABLE 32500 52#define BITS_PER_WORD 32 53#define WORDSIZE(n) (((n)+(BITS_PER_WORD-1))/BITS_PER_WORD) 54#define BIT(r, n) ((((r)[(n)>>5])>>((n)&31))&1) 55#define SETBIT(r, n) ((r)[(n)>>5]|=((unsigned)1<<((n)&31))) 56 57/* character names */ 58 59#define NUL '\0' /* the null character */ 60#define NEWLINE '\n' /* line feed */ 61#define SP ' ' /* space */ 62#define BS '\b' /* backspace */ 63#define HT '\t' /* horizontal tab */ 64#define VT '\013' /* vertical tab */ 65#define CR '\r' /* carriage return */ 66#define FF '\f' /* form feed */ 67#define QUOTE '\'' /* single quote */ 68#define DOUBLE_QUOTE '\"' /* double quote */ 69#define BACKSLASH '\\' /* backslash */ 70 71#define UCH(c) (unsigned char)(c) 72 73/* defines for constructing filenames */ 74 75#if defined(VMS) 76#define CODE_SUFFIX "_code.c" 77#define DEFINES_SUFFIX "_tab.h" 78#define EXTERNS_SUFFIX "_tab.i" 79#define OUTPUT_SUFFIX "_tab.c" 80#else 81#define CODE_SUFFIX ".code.c" 82#define DEFINES_SUFFIX ".tab.h" 83#define EXTERNS_SUFFIX ".tab.i" 84#define OUTPUT_SUFFIX ".tab.c" 85#endif 86#define VERBOSE_SUFFIX ".output" 87#define GRAPH_SUFFIX ".dot" 88 89/* keyword codes */ 90 91#define TOKEN 0 92#define LEFT 1 93#define RIGHT 2 94#define NONASSOC 3 95#define MARK 4 96#define TEXT 5 97#define TYPE 6 98#define START 7 99#define UNION 8 100#define IDENT 9 101#define EXPECT 10 102#define EXPECT_RR 11 103#define PURE_PARSER 12 104#define PARSE_PARAM 13 105#define LEX_PARAM 14 106#define POSIX_YACC 15 107 108/* symbol classes */ 109 110#define UNKNOWN 0 111#define TERM 1 112#define NONTERM 2 113 114/* the undefined value */ 115 116#define UNDEFINED (-1) 117 118/* action codes */ 119 120#define SHIFT 1 121#define REDUCE 2 122 123/* character macros */ 124 125#define IS_IDENT(c) (isalnum(c) || (c) == '_' || (c) == '.' || (c) == '$') 126#define IS_OCTAL(c) ((c) >= '0' && (c) <= '7') 127#define NUMERIC_VALUE(c) ((c) - '0') 128 129/* symbol macros */ 130 131#define ISTOKEN(s) ((s) < start_symbol) 132#define ISVAR(s) ((s) >= start_symbol) 133 134/* storage allocation macros */ 135 136#define CALLOC(k,n) (calloc((size_t)(k),(size_t)(n))) 137#define FREE(x) (free((char*)(x))) 138#define MALLOC(n) (malloc((size_t)(n))) 139#define TMALLOC(t,n) ((t*) malloc((size_t)(n) * sizeof(t))) 140#define NEW(t) ((t*)allocate(sizeof(t))) 141#define NEW2(n,t) ((t*)allocate(((size_t)(n)*sizeof(t)))) 142#define REALLOC(p,n) (realloc((char*)(p),(size_t)(n))) 143#define TREALLOC(t,p,n) ((t*)realloc((char*)(p), (size_t)(n) * sizeof(t))) 144 145#define DO_FREE(x) if (x) { FREE(x); x = 0; } 146 147#define NO_SPACE(p) if (p == 0) no_space(); assert(p != 0) 148 149/* messages */ 150#define PLURAL(n) ((n) > 1 ? "s" : "") 151 152typedef char Assoc_t; 153typedef char Class_t; 154typedef short Index_t; 155typedef short Value_t; 156 157/* the structure of a symbol table entry */ 158 159typedef struct bucket bucket; 160struct bucket 161{ 162 struct bucket *link; 163 struct bucket *next; 164 char *name; 165 char *tag; 166 Value_t value; 167 Index_t index; 168 Value_t prec; 169 Class_t class; 170 Assoc_t assoc; 171}; 172 173/* the structure of the LR(0) state machine */ 174 175typedef struct core core; 176struct core 177{ 178 struct core *next; 179 struct core *link; 180 Value_t number; 181 Value_t accessing_symbol; 182 Value_t nitems; 183 Value_t items[1]; 184}; 185 186/* the structure used to record shifts */ 187 188typedef struct shifts shifts; 189struct shifts 190{ 191 struct shifts *next; 192 Value_t number; 193 Value_t nshifts; 194 Value_t shift[1]; 195}; 196 197/* the structure used to store reductions */ 198 199typedef struct reductions reductions; 200struct reductions 201{ 202 struct reductions *next; 203 Value_t number; 204 Value_t nreds; 205 Value_t rules[1]; 206}; 207 208/* the structure used to represent parser actions */ 209 210typedef struct action action; 211struct action 212{ 213 struct action *next; 214 Value_t symbol; 215 Value_t number; 216 Value_t prec; 217 char action_code; 218 Assoc_t assoc; 219 char suppressed; 220}; 221 222/* the structure used to store parse/lex parameters */ 223typedef struct param param; 224struct param 225{ 226 struct param *next; 227 char *name; /* parameter name */ 228 char *type; /* everything before parameter name */ 229 char *type2; /* everything after parameter name */ 230}; 231 232/* global variables */ 233 234extern char dflag; 235extern char gflag; 236extern char iflag; 237extern char lflag; 238extern char rflag; 239extern char sflag; 240extern char tflag; 241extern char vflag; 242extern const char *symbol_prefix; 243 244extern const char *myname; 245extern char *cptr; 246extern char *line; 247extern int lineno; 248extern int outline; 249extern int exit_code; 250extern int pure_parser; 251 252extern const char *const banner[]; 253extern const char *const xdecls[]; 254extern const char *const tables[]; 255extern const char *const global_vars[]; 256extern const char *const impure_vars[]; 257extern const char *const hdr_defs[]; 258extern const char *const hdr_vars[]; 259extern const char *const body_1[]; 260extern const char *const body_vars[]; 261extern const char *const body_2[]; 262extern const char *const body_3[]; 263extern const char *const trailer[]; 264extern const char *const trailer_2[]; 265 266extern char *code_file_name; 267extern char *input_file_name; 268extern char *defines_file_name; 269extern char *externs_file_name; 270 271extern FILE *action_file; 272extern FILE *code_file; 273extern FILE *defines_file; 274extern FILE *externs_file; 275extern FILE *input_file; 276extern FILE *output_file; 277extern FILE *text_file; 278extern FILE *union_file; 279extern FILE *verbose_file; 280extern FILE *graph_file; 281 282extern int nitems; 283extern int nrules; 284extern int nsyms; 285extern int ntokens; 286extern int nvars; 287extern int ntags; 288 289extern char unionized; 290extern char line_format[]; 291 292extern Value_t start_symbol; 293extern char **symbol_name; 294extern char **symbol_pname; 295extern Value_t *symbol_value; 296extern Value_t *symbol_prec; 297extern char *symbol_assoc; 298 299extern Value_t *ritem; 300extern Value_t *rlhs; 301extern Value_t *rrhs; 302extern Value_t *rprec; 303extern Assoc_t *rassoc; 304 305extern Value_t **derives; 306extern char *nullable; 307 308extern bucket *first_symbol; 309extern bucket *last_symbol; 310 311extern int nstates; 312extern core *first_state; 313extern shifts *first_shift; 314extern reductions *first_reduction; 315extern Value_t *accessing_symbol; 316extern core **state_table; 317extern shifts **shift_table; 318extern reductions **reduction_table; 319extern unsigned *LA; 320extern Value_t *LAruleno; 321extern Value_t *lookaheads; 322extern Value_t *goto_map; 323extern Value_t *from_state; 324extern Value_t *to_state; 325 326extern action **parser; 327extern int SRexpect; 328extern int RRexpect; 329extern int SRtotal; 330extern int RRtotal; 331extern Value_t *SRconflicts; 332extern Value_t *RRconflicts; 333extern Value_t *defred; 334extern Value_t *rules_used; 335extern Value_t nunused; 336extern Value_t final_state; 337 338extern Value_t *itemset; 339extern Value_t *itemsetend; 340extern unsigned *ruleset; 341 342extern param *lex_param; 343extern param *parse_param; 344 345/* global functions */ 346 347extern bucket *lookup(const char *); 348extern bucket *make_bucket(const char *); 349 350#ifndef GCC_NORETURN 351#if defined(__dead2) 352#define GCC_NORETURN __dead2 353#elif defined(__dead) 354#define GCC_NORETURN __dead 355#else 356#define GCC_NORETURN /* nothing */ 357#endif 358#endif 359 360#ifndef GCC_UNUSED 361#if defined(__unused) 362#define GCC_UNUSED __unused 363#else 364#define GCC_UNUSED /* nothing */ 365#endif 366#endif 367 368/* closure.c */ 369extern void closure(Value_t * nucleus, int n); 370extern void finalize_closure(void); 371extern void set_first_derives(void); 372 373/* error.c */ 374extern void default_action_warning(void); 375extern void dollar_error(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN; 376extern void dollar_warning(int a_lineno, int i); 377extern void fatal(const char *msg) GCC_NORETURN; 378extern void illegal_character(char *c_cptr) GCC_NORETURN; 379extern void illegal_tag(int t_lineno, char *t_line, char *t_cptr) GCC_NORETURN; 380extern void missing_brace(void) GCC_NORETURN; 381extern void no_grammar(void) GCC_NORETURN; 382extern void no_space(void) GCC_NORETURN; 383extern void open_error(const char *filename) GCC_NORETURN; 384extern void over_unionized(char *u_cptr) GCC_NORETURN; 385extern void prec_redeclared(void); 386extern void reprec_warning(char *s); 387extern void restarted_warning(void); 388extern void retyped_warning(char *s); 389extern void revalued_warning(char *s); 390extern void syntax_error(int st_lineno, char *st_line, char *st_cptr) GCC_NORETURN; 391extern void terminal_lhs(int s_lineno) GCC_NORETURN; 392extern void terminal_start(char *s) GCC_NORETURN; 393extern void tokenized_start(char *s) GCC_NORETURN; 394extern void undefined_goal(char *s) GCC_NORETURN; 395extern void undefined_symbol_warning(char *s); 396extern void unexpected_EOF(void) GCC_NORETURN; 397extern void unknown_rhs(int i) GCC_NORETURN; 398extern void unterminated_action(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN; 399extern void unterminated_comment(int c_lineno, char *c_line, char *c_cptr) GCC_NORETURN; 400extern void unterminated_string(int s_lineno, char *s_line, char *s_cptr) GCC_NORETURN; 401extern void unterminated_text(int t_lineno, char *t_line, char *t_cptr) GCC_NORETURN; 402extern void unterminated_union(int u_lineno, char *u_line, char *u_cptr) GCC_NORETURN; 403extern void untyped_lhs(void) GCC_NORETURN; 404extern void untyped_rhs(int i, char *s) GCC_NORETURN; 405extern void used_reserved(char *s) GCC_NORETURN; 406 407/* graph.c */ 408extern void graph(void); 409 410/* lalr.c */ 411extern void create_symbol_table(void); 412extern void free_symbol_table(void); 413extern void free_symbols(void); 414 415/* lalr.c */ 416extern void lalr(void); 417 418/* lr0.c */ 419extern void lr0(void); 420extern void show_cores(void); 421extern void show_ritems(void); 422extern void show_rrhs(void); 423extern void show_shifts(void); 424 425/* main.c */ 426extern void *allocate(size_t n); 427extern void done(int k) GCC_NORETURN; 428 429/* mkpar.c */ 430extern void free_parser(void); 431extern void make_parser(void); 432 433/* output.c */ 434extern void output(void); 435 436/* reader.c */ 437extern void reader(void); 438 439/* skeleton.c */ 440extern void write_section(FILE * fp, const char *const section[]); 441 442/* verbose.c */ 443extern void verbose(void); 444 445/* warshall.c */ 446extern void reflexive_transitive_closure(unsigned *R, int n); 447 448#ifdef NO_LEAKS 449extern void lr0_leaks(void); 450extern void lalr_leaks(void); 451extern void mkpar_leaks(void); 452extern void output_leaks(void); 453extern void reader_leaks(void); 454#endif 455