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greg |
2.7 |
/* RCSid $Id$ */ |
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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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greg |
2.7 |
#include "copyright.h" |
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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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#define TICK 7 |
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#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 |
1.1 |
double (*f)(); /* pointer to function */ |
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} LIBR; /* a library function */ |
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typedef struct epnode { |
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greg |
2.2 |
int type; /* node type */ |
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greg |
1.1 |
struct epnode *sibling; /* next child this level */ |
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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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} EPNODE; /* an expression node */ |
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typedef struct vardef VARDEF; /* a variable definition */ |
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gregl |
2.5 |
#define MAXWORD 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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/* 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 |
1.1 |
extern double (*eoper[])(); |
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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 |
2.6 |
#ifdef NOPROTO |
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extern void fcompile(); |
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extern void scompile(); |
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extern double varvalue(); |
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extern double evariable(); |
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extern void varset(); |
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extern void dclear(); |
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extern void dremove(); |
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extern int vardefined(); |
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extern char *setcontext(); |
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extern char *pushcontext(); |
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extern char *popcontext(); |
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extern char *qualname(); |
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extern int incontext(); |
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extern void chanout(); |
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extern void dcleanup(); |
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extern EPNODE *dlookup(); |
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extern VARDEF *varlookup(); |
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extern VARDEF *varinsert(); |
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extern void varfree(); |
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extern EPNODE *dfirst(); |
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extern EPNODE *dnext(); |
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extern EPNODE *dpop(); |
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extern void dpush(); |
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extern void addchan(); |
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extern void getstatement(); |
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extern EPNODE *getdefn(); |
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extern EPNODE *getchan(); |
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extern EPNODE *eparse(); |
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extern double eval(); |
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extern int epcmp(); |
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extern void epfree(); |
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extern EPNODE *ekid(); |
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extern int nekids(); |
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extern void initfile(); |
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extern void initstr(); |
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extern void getscanpos(); |
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extern int scan(); |
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extern char *long2ascii(); |
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extern void syntax(); |
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extern void addekid(); |
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extern char *getname(); |
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extern int getinum(); |
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extern double getnum(); |
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extern EPNODE *getE1(); |
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extern EPNODE *getE2(); |
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extern EPNODE *getE3(); |
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extern EPNODE *getE4(); |
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extern EPNODE *getE5(); |
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extern EPNODE *rconst(); |
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extern int isconstvar(); |
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extern int isconstfun(); |
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extern int fundefined(); |
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extern double funvalue(); |
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extern void funset(); |
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extern int nargum(); |
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extern double argument(); |
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extern VARDEF *argf(); |
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extern char *argfun(); |
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extern double efunc(); |
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extern LIBR *liblookup(); |
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extern void libupdate(); |
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extern void eprint(); |
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extern void dprint(); |
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extern char *savestr(); |
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extern void freestr(); |
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extern int shash(); |
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extern char *emalloc(); |
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extern char *ecalloc(); |
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extern char *erealloc(); |
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extern void efree(); |
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extern void eputs(); |
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extern void wputs(); |
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extern void quit(); |
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extern double chanvalue(); |
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#else |
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/* 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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extern void varset(char *fname, int assign, double val); |
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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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extern char *setcontext(char *ctx); |
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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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extern void chanout(int (*cs)()); |
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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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extern void getstatement(); |
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extern EPNODE *getdefn(); |
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extern EPNODE *getchan(); |
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/* 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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extern void epfree(EPNODE *epar); |
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extern EPNODE *ekid(EPNODE *ep, int n); |
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extern int nekids(EPNODE *ep); |
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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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extern void addekid(EPNODE *ep, EPNODE *ekid); |
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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); |
| 197 |
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extern EPNODE *rconst(EPNODE *epar); |
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extern int isconstvar(EPNODE *ep); |
| 199 |
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extern int isconstfun(EPNODE *ep); |
| 200 |
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/* defined in calfunc.c */ |
| 201 |
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extern int fundefined(char *fname); |
| 202 |
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extern double funvalue(char *fname, int n, double *a); |
| 203 |
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extern void funset(char *fname, int nargs, int assign, double (*fptr)()); |
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extern int nargum(void); |
| 205 |
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extern double argument(int n); |
| 206 |
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extern VARDEF *argf(int n); |
| 207 |
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extern char *argfun(int n); |
| 208 |
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extern double efunc(EPNODE *ep); |
| 209 |
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extern LIBR *liblookup(char *fname); |
| 210 |
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extern void libupdate(char *fn); |
| 211 |
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/* defined in calprnt.c */ |
| 212 |
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extern void eprint(EPNODE *ep, FILE *fp); |
| 213 |
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extern void dprint(char *name, FILE *fp); |
| 214 |
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/* defined in savestr.c */ |
| 215 |
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extern char *savestr(char *str); |
| 216 |
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extern void freestr(char *s); |
| 217 |
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extern int shash(char *s); |
| 218 |
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/* defined in ealloc.c */ |
| 219 |
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extern char *emalloc(unsigned int n); |
| 220 |
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extern char *ecalloc(unsigned int ne, unsigned int es); |
| 221 |
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extern char *erealloc(char *cp, unsigned int n); |
| 222 |
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extern void efree(char *cp); |
| 223 |
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/* miscellaneous */ |
| 224 |
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extern void eputs(char *s); |
| 225 |
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extern void wputs(char *s); |
| 226 |
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extern void quit(int code); |
| 227 |
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/* defined by client */ |
| 228 |
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extern double chanvalue(int n); |
| 229 |
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#endif |
