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greg |
2.25 |
/* RCSid $Id: calcomp.h,v 2.24 2023/09/26 18:33:14 greg Exp $ */ |
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greg |
1.1 |
/* |
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* calcomp.h - header file for expression parser. |
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greg |
2.6 |
*/ |
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schorsch |
2.9 |
#ifndef _RAD_CALCOMP_H_ |
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#define _RAD_CALCOMP_H_ |
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schorsch |
2.14 |
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#include <stdio.h> |
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schorsch |
2.9 |
#ifdef __cplusplus |
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extern "C" { |
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#endif |
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greg |
2.7 |
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greg |
2.2 |
#define VAR 1 |
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#define NUM 2 |
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#define UMINUS 3 |
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#define CHAN 4 |
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#define FUNC 5 |
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#define ARG 6 |
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greg |
2.22 |
#define CLKT 7 |
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greg |
2.2 |
#define SYM 8 |
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greg |
1.4 |
/* also: '+', '-', '*', '/', '^', '=', ':' */ |
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greg |
1.1 |
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typedef struct { |
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char *fname; /* function name */ |
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greg |
1.5 |
short nargs; /* # of required arguments */ |
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short atyp; /* assignment type (':' or '=') */ |
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greg |
2.16 |
double (*f)(char *); /* pointer to function */ |
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greg |
1.1 |
} LIBR; /* a library function */ |
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typedef struct epnode { |
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union { |
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struct epnode *kid; /* first child */ |
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greg |
2.2 |
double num; /* number */ |
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greg |
1.1 |
char *name; /* symbol name */ |
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int chan; /* channel number */ |
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greg |
2.4 |
unsigned long tick; /* timestamp */ |
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greg |
1.1 |
struct vardef { |
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char *name; /* variable name */ |
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greg |
2.2 |
int nlinks; /* number of references */ |
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greg |
1.1 |
struct epnode *def; /* definition */ |
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LIBR *lib; /* library definition */ |
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struct vardef *next; /* next in hash list */ |
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} *ln; /* link */ |
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} v; /* value */ |
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greg |
2.21 |
struct epnode *sibling; /* next child this level */ |
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greg |
2.25 |
short type; /* node type */ |
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short nkids; /* child count (neg if array) */ |
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greg |
1.1 |
} EPNODE; /* an expression node */ |
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typedef struct vardef VARDEF; /* a variable definition */ |
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greg |
2.25 |
#define nekids(ep) abs((ep)->nkids) |
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schorsch |
2.13 |
#define RMAXWORD 127 /* maximum word/id length */ |
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greg |
2.2 |
#define CNTXMARK '`' /* context mark */ |
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greg |
1.6 |
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greg |
2.2 |
#define isid(c) (isalnum(c) || (c) == '_' || \ |
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greg |
1.6 |
(c) == '.' || (c) == CNTXMARK) |
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greg |
2.6 |
#define evalue(ep) (*eoper[(ep)->type])(ep) |
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greg |
2.24 |
#define dfn_name(ep) ((ep)->v.kid->type == SYM ? \ |
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(ep)->v.kid->v.name : \ |
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(ep)->v.kid->v.kid->v.name) |
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greg |
2.6 |
/* flags to set in esupport */ |
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#define E_VARIABLE 001 |
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#define E_FUNCTION 002 |
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#define E_INCHAN 004 |
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#define E_OUTCHAN 010 |
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#define E_RCONST 020 |
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#define E_REDEFW 040 |
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greg |
2.15 |
extern double (*eoper[])(EPNODE *); |
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greg |
2.4 |
extern unsigned long eclock; |
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greg |
2.6 |
extern unsigned int esupport; |
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extern EPNODE *curfunc; |
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greg |
1.1 |
extern int nextc; |
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greg |
2.19 |
extern int eofc; |
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schorsch |
2.14 |
/* defined in biggerlib.c */ |
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extern void biggerlib(void); |
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greg |
2.6 |
/* defined in caldefn.c */ |
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extern void fcompile(char *fname); |
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extern void scompile(char *str, char *fname, int ln); |
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extern double varvalue(char *vname); |
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extern double evariable(EPNODE *ep); |
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greg |
2.20 |
extern void varset(char *vname, int assign, double val); |
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greg |
2.6 |
extern void dclear(char *name); |
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extern void dremove(char *name); |
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extern int vardefined(char *name); |
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greg |
2.23 |
extern char *calcontext(char *ctx); |
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greg |
2.6 |
extern char *pushcontext(char *ctx); |
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extern char *popcontext(void); |
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extern char *qualname(char *nam, int lvl); |
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extern int incontext(char *qn); |
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greg |
2.8 |
extern void chanout(void (*cs)(int n, double v)); |
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greg |
2.25 |
extern void doptimize(int activate); |
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greg |
2.6 |
extern void dcleanup(int lvl); |
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extern EPNODE *dlookup(char *name); |
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extern VARDEF *varlookup(char *name); |
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extern VARDEF *varinsert(char *name); |
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extern void varfree(VARDEF *ln); |
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extern EPNODE *dfirst(void); |
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extern EPNODE *dnext(void); |
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extern EPNODE *dpop(char *name); |
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extern void dpush(char *nm, EPNODE *ep); |
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extern void addchan(EPNODE *sp); |
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schorsch |
2.14 |
extern void getstatement(void); |
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extern EPNODE *getdefn(void); |
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extern EPNODE *getchan(void); |
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greg |
2.6 |
/* defined in calexpr.c */ |
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extern EPNODE *eparse(char *expr); |
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extern double eval(char *expr); |
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extern int epcmp(EPNODE *ep1, EPNODE *ep2); |
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greg |
2.25 |
extern void epfree(EPNODE *epar, int frep); |
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extern void epoptimize(EPNODE *epar); |
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greg |
2.6 |
extern EPNODE *ekid(EPNODE *ep, int n); |
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extern void initfile(FILE *fp, char *fn, int ln); |
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extern void initstr(char *s, char *fn, int ln); |
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extern void getscanpos(char **fnp, int *lnp, char **spp, FILE **fpp); |
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extern int scan(void); |
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extern char *long2ascii(long l); |
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extern void syntax(char *err); |
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greg |
2.25 |
extern void addekid(EPNODE *ep, EPNODE *ek); |
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greg |
2.6 |
extern char *getname(void); |
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extern int getinum(void); |
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extern double getnum(void); |
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extern EPNODE *getE1(void); |
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extern EPNODE *getE2(void); |
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extern EPNODE *getE3(void); |
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extern EPNODE *getE4(void); |
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extern EPNODE *getE5(void); |
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extern EPNODE *rconst(EPNODE *epar); |
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extern int isconstvar(EPNODE *ep); |
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extern int isconstfun(EPNODE *ep); |
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/* defined in calfunc.c */ |
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extern int fundefined(char *fname); |
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extern double funvalue(char *fname, int n, double *a); |
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greg |
2.16 |
extern void funset(char *fname, int nargs, int assign, |
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double (*fptr)(char *)); |
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greg |
2.6 |
extern int nargum(void); |
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extern double argument(int n); |
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extern VARDEF *argf(int n); |
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extern char *argfun(int n); |
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extern double efunc(EPNODE *ep); |
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extern LIBR *liblookup(char *fname); |
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extern void libupdate(char *fn); |
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/* defined in calprnt.c */ |
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extern void eprint(EPNODE *ep, FILE *fp); |
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extern void dprint(char *name, FILE *fp); |
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/* defined by client */ |
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extern double chanvalue(int n); |
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schorsch |
2.9 |
#ifdef __cplusplus |
| 156 |
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} |
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greg |
2.6 |
#endif |
| 158 |
schorsch |
2.9 |
#endif /* _RAD_CALCOMP_H_ */ |
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