57 #define	NNULL		((NODE *)0)
96 typedef	struct NODE	*(*FUNCTION)(struct NODE *np);
102 typedef	struct	NODE	{  struct
104 	struct NODE	*n_next;		/* Symbol table/PARM link */  argument
113 			struct NODE	*N_alink;	/* Array link */  argument
122 				struct	NODE	*N_ufunc;
127 			struct	NODE	*N_left;
128 			struct	NODE	*N_right;
132 			struct	NODE	*N_left;	/* Used for fliplist */
133 			struct	NODE	*N_right;
137 }	NODE;  argument
281 void	uexit(NODE *);
283 NODE	*renode(wchar_t *restr);
298 void	s_print(NODE *np);
299 void	s_prf(NODE *np);
300 size_t	xprintf(NODE *np, FILE *fp, wchar_t **cp);
304 void	strassign(NODE *np, STRING string, int flags, size_t length);
305 NODE	*nassign(NODE *np, NODE *value);
306 NODE	*assign(NODE *np, NODE *value);
307 void	delarray(NODE *np);
308 NODE	*node(int type, NODE *left, NODE *right);
309 NODE	*intnode(INT i);
310 NODE	*realnode(REAL r);
311 NODE	*stringnode(STRING str, int aflag, size_t wcslen);
312 NODE	*vlookup(wchar_t *name, int nocreate);
313 NODE	*emptynode(int type, size_t nlength);
314 void	freenode(NODE *np);
315 void	execute(NODE *np);
316 INT	exprint(NODE *np);
317 REAL	exprreal(NODE *np);
318 STRING	exprstring(NODE *np);
320 NODE	*exprreduce(NODE *np);
321 NODE	*getlist(NODE **npp);
322 NODE	*symwalk(int *buckp, NODE **npp);
323 REGEXP	getregexp(NODE *np);
324 void	addsymtab(NODE *np);
325 void	delsymtab(NODE *np, int fflag);
326 NODE	* finstall(LOCCHARP name, FUNCTION f, int type);
329 void	promote(NODE *);
338 NODE	*f_exp(NODE *np);
339 NODE	*f_int(NODE *np);
340 NODE	*f_log(NODE *np);
341 NODE	*f_sqrt(NODE *np);
342 NODE	*f_getline(NODE *np);
343 NODE	*f_index(NODE *np);
344 NODE	*f_length(NODE *np);
345 NODE	*f_split(NODE *np);
346 NODE	*f_sprintf(NODE *np);
347 NODE	*f_substr(NODE *np);
348 NODE	*f_rand(NODE *np);
349 NODE	*f_srand(NODE *np);
350 NODE	*f_sin(NODE *np);
351 NODE	*f_cos(NODE *np);
352 NODE	*f_atan2(NODE *np);
353 NODE	*f_sub(NODE *np);
354 NODE	*f_gsub(NODE *np);
355 NODE	*f_match(NODE *np);
356 NODE	*f_system(NODE *np);
357 NODE	*f_ord(NODE *np);
358 NODE	*f_tolower(NODE *np);
359 NODE	*f_toupper(NODE *np);
360 NODE	*f_close(NODE *np);
361 NODE	*f_asort(NODE *np);
415 extern	NODE	*symtab[NBUCKET];
416 extern	NODE	*yytree;
417 extern	NODE	*freelist;
421 extern	NODE	*constant;
422 extern	NODE	*const0;
423 extern	NODE	*const1;
424 extern	NODE	*constundef;
425 extern	NODE	*field0;
426 extern	NODE	*incNR;
427 extern	NODE	*incFNR;
428 extern	NODE	*clrFNR;
429 extern	NODE	*ARGVsubi;
430 extern	NODE	*varNR;
431 extern	NODE	*varFNR;
432 extern	NODE	*varNF;
433 extern	NODE	*varOFMT;
434 extern	NODE	*varCONVFMT;
435 extern	NODE	*varOFS;
436 extern	NODE	*varORS;
437 extern	NODE	*varFS;
438 extern	NODE	*varRS;
439 extern	NODE	*varARGC;
440 extern	NODE	*varSUBSEP;
441 extern	NODE	*varENVIRON;
442 extern	NODE	*varSYMTAB;
443 extern	NODE	*varFILENAME;
444 extern	NODE	*curnode;
445 extern	NODE    *inc_oper;
446 extern	NODE	*asn_oper;