1 /* $Id: defs.h,v 1.37 2012/05/26 15:23:00 tom Exp $ */
14 #if defined(__cplusplus) /* __cplusplus, etc. */
21 #define CONCAT(first,second) first #second
22 #define CONCAT1(string,number) CONCAT(string, number)
23 #define CONCAT2(first,second) #first "." #second
26 #define VSTRING(a,b) CONCAT2(a,b) CONCAT1(" ",YYPATCH)
28 #define VSTRING(a,b) CONCAT2(a,b)
31 #define VERSION VSTRING(YYMAJOR, YYMINOR)
33 /* machine-dependent definitions */
34 /* the following definitions are for the Tahoe */
35 /* they might have to be changed for other machines */
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 */
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 */
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)))
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 */
71 #define UCH(c) (unsigned char)(c)
73 /* defines for constructing filenames */
76 #define CODE_SUFFIX "_code.c"
77 #define DEFINES_SUFFIX "_tab.h"
78 #define EXTERNS_SUFFIX "_tab.i"
79 #define OUTPUT_SUFFIX "_tab.c"
81 #define CODE_SUFFIX ".code.c"
82 #define DEFINES_SUFFIX ".tab.h"
83 #define EXTERNS_SUFFIX ".tab.i"
84 #define OUTPUT_SUFFIX ".tab.c"
86 #define VERBOSE_SUFFIX ".output"
87 #define GRAPH_SUFFIX ".dot"
103 #define PURE_PARSER 12
104 #define PARSE_PARAM 13
106 #define POSIX_YACC 15
114 /* the undefined value */
116 #define UNDEFINED (-1)
123 /* character macros */
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')
131 #define ISTOKEN(s) ((s) < start_symbol)
132 #define ISVAR(s) ((s) >= start_symbol)
134 /* storage allocation macros */
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)))
145 #define DO_FREE(x) if (x) { FREE(x); x = 0; }
147 #define NO_SPACE(p) if (p == 0) no_space(); assert(p != 0)
150 #define PLURAL(n) ((n) > 1 ? "s" : "")
152 typedef char Assoc_t;
153 typedef char Class_t;
154 typedef short Index_t;
155 typedef short Value_t;
157 /* the structure of a symbol table entry */
159 typedef struct bucket bucket;
173 /* the structure of the LR(0) state machine */
175 typedef struct core core;
181 Value_t accessing_symbol;
186 /* the structure used to record shifts */
188 typedef struct shifts shifts;
197 /* the structure used to store reductions */
199 typedef struct reductions reductions;
202 struct reductions *next;
208 /* the structure used to represent parser actions */
210 typedef struct action action;
222 /* the structure used to store parse/lex parameters */
223 typedef struct param param;
227 char *name; /* parameter name */
228 char *type; /* everything before parameter name */
229 char *type2; /* everything after parameter name */
232 /* global variables */
242 extern const char *symbol_prefix;
244 extern const char *myname;
249 extern int exit_code;
250 extern int pure_parser;
252 extern const char *const banner[];
253 extern const char *const xdecls[];
254 extern const char *const tables[];
255 extern const char *const global_vars[];
256 extern const char *const impure_vars[];
257 extern const char *const hdr_defs[];
258 extern const char *const hdr_vars[];
259 extern const char *const body_1[];
260 extern const char *const body_vars[];
261 extern const char *const body_2[];
262 extern const char *const body_3[];
263 extern const char *const trailer[];
264 extern const char *const trailer_2[];
266 extern char *code_file_name;
267 extern char *input_file_name;
268 extern char *defines_file_name;
269 extern char *externs_file_name;
271 extern FILE *action_file;
272 extern FILE *code_file;
273 extern FILE *defines_file;
274 extern FILE *externs_file;
275 extern FILE *input_file;
276 extern FILE *output_file;
277 extern FILE *text_file;
278 extern FILE *union_file;
279 extern FILE *verbose_file;
280 extern FILE *graph_file;
289 extern char unionized;
290 extern char line_format[];
292 extern Value_t start_symbol;
293 extern char **symbol_name;
294 extern char **symbol_pname;
295 extern Value_t *symbol_value;
296 extern Value_t *symbol_prec;
297 extern char *symbol_assoc;
299 extern Value_t *ritem;
300 extern Value_t *rlhs;
301 extern Value_t *rrhs;
302 extern Value_t *rprec;
303 extern Assoc_t *rassoc;
305 extern Value_t **derives;
306 extern char *nullable;
308 extern bucket *first_symbol;
309 extern bucket *last_symbol;
312 extern core *first_state;
313 extern shifts *first_shift;
314 extern reductions *first_reduction;
315 extern Value_t *accessing_symbol;
316 extern core **state_table;
317 extern shifts **shift_table;
318 extern reductions **reduction_table;
320 extern Value_t *LAruleno;
321 extern Value_t *lookaheads;
322 extern Value_t *goto_map;
323 extern Value_t *from_state;
324 extern Value_t *to_state;
326 extern action **parser;
331 extern Value_t *SRconflicts;
332 extern Value_t *RRconflicts;
333 extern Value_t *defred;
334 extern Value_t *rules_used;
335 extern Value_t nunused;
336 extern Value_t final_state;
338 extern Value_t *itemset;
339 extern Value_t *itemsetend;
340 extern unsigned *ruleset;
342 extern param *lex_param;
343 extern param *parse_param;
345 /* global functions */
347 extern bucket *lookup(const char *);
348 extern bucket *make_bucket(const char *);
352 #define GCC_NORETURN __dead2
353 #elif defined(__dead)
354 #define GCC_NORETURN __dead
356 #define GCC_NORETURN /* nothing */
361 #if defined(__unused)
362 #define GCC_UNUSED __unused
364 #define GCC_UNUSED /* nothing */
369 extern void closure(Value_t * nucleus, int n);
370 extern void finalize_closure(void);
371 extern void set_first_derives(void);
374 extern void default_action_warning(void);
375 extern void dollar_error(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN;
376 extern void dollar_warning(int a_lineno, int i);
377 extern void fatal(const char *msg) GCC_NORETURN;
378 extern void illegal_character(char *c_cptr) GCC_NORETURN;
379 extern void illegal_tag(int t_lineno, char *t_line, char *t_cptr) GCC_NORETURN;
380 extern void missing_brace(void) GCC_NORETURN;
381 extern void no_grammar(void) GCC_NORETURN;
382 extern void no_space(void) GCC_NORETURN;
383 extern void open_error(const char *filename) GCC_NORETURN;
384 extern void over_unionized(char *u_cptr) GCC_NORETURN;
385 extern void prec_redeclared(void);
386 extern void reprec_warning(char *s);
387 extern void restarted_warning(void);
388 extern void retyped_warning(char *s);
389 extern void revalued_warning(char *s);
390 extern void syntax_error(int st_lineno, char *st_line, char *st_cptr) GCC_NORETURN;
391 extern void terminal_lhs(int s_lineno) GCC_NORETURN;
392 extern void terminal_start(char *s) GCC_NORETURN;
393 extern void tokenized_start(char *s) GCC_NORETURN;
394 extern void undefined_goal(char *s) GCC_NORETURN;
395 extern void undefined_symbol_warning(char *s);
396 extern void unexpected_EOF(void) GCC_NORETURN;
397 extern void unknown_rhs(int i) GCC_NORETURN;
398 extern void unterminated_action(int a_lineno, char *a_line, char *a_cptr) GCC_NORETURN;
399 extern void unterminated_comment(int c_lineno, char *c_line, char *c_cptr) GCC_NORETURN;
400 extern void unterminated_string(int s_lineno, char *s_line, char *s_cptr) GCC_NORETURN;
401 extern void unterminated_text(int t_lineno, char *t_line, char *t_cptr) GCC_NORETURN;
402 extern void unterminated_union(int u_lineno, char *u_line, char *u_cptr) GCC_NORETURN;
403 extern void untyped_lhs(void) GCC_NORETURN;
404 extern void untyped_rhs(int i, char *s) GCC_NORETURN;
405 extern void used_reserved(char *s) GCC_NORETURN;
408 extern void graph(void);
411 extern void create_symbol_table(void);
412 extern void free_symbol_table(void);
413 extern void free_symbols(void);
416 extern void lalr(void);
419 extern void lr0(void);
420 extern void show_cores(void);
421 extern void show_ritems(void);
422 extern void show_rrhs(void);
423 extern void show_shifts(void);
426 extern void *allocate(size_t n);
427 extern void done(int k) GCC_NORETURN;
430 extern void free_parser(void);
431 extern void make_parser(void);
434 extern void output(void);
437 extern void reader(void);
440 extern void write_section(FILE * fp, const char *const section[]);
443 extern void verbose(void);
446 extern void reflexive_transitive_closure(unsigned *R, int n);
449 extern void lr0_leaks(void);
450 extern void lalr_leaks(void);
451 extern void mkpar_leaks(void);
452 extern void output_leaks(void);
453 extern void reader_leaks(void);