| 16 |
|
* 1/15/88 Added clock for caching of variable values. |
| 17 |
|
* |
| 18 |
|
* 11/16/88 Added VARDEF structure for hard linking. |
| 19 |
+ |
* |
| 20 |
+ |
* 5/31/90 Added conditional compile (REDEFW) for redefinition warning. |
| 21 |
|
*/ |
| 22 |
|
|
| 23 |
|
#include <stdio.h> |
| 34 |
|
|
| 35 |
|
extern char *ecalloc(), *savestr(); |
| 36 |
|
|
| 37 |
< |
extern double dvalue(); |
| 37 |
> |
static double dvalue(); |
| 38 |
|
|
| 39 |
|
long eclock = -1; /* value storage timer */ |
| 40 |
|
|
| 68 |
|
eputs(": cannot open\n"); |
| 69 |
|
quit(1); |
| 70 |
|
} |
| 71 |
< |
initfile(fname, fp); |
| 71 |
> |
initfile(fp, fname, 0); |
| 72 |
|
while (nextc != EOF) |
| 73 |
|
loaddefn(); |
| 74 |
|
if (fname != NULL) |
| 76 |
|
} |
| 77 |
|
|
| 78 |
|
|
| 79 |
< |
scompile(file, str) /* get definitions from a string */ |
| 78 |
< |
char *file; |
| 79 |
> |
scompile(str, fn, ln) /* get definitions from a string */ |
| 80 |
|
char *str; |
| 81 |
+ |
char *fn; |
| 82 |
+ |
int ln; |
| 83 |
|
{ |
| 84 |
< |
initstr(file, str); |
| 84 |
> |
initstr(str, fn, ln); |
| 85 |
|
while (nextc != EOF) |
| 86 |
|
loaddefn(); |
| 87 |
|
} |
| 115 |
|
ep2 = ep1->v.kid->sibling; |
| 116 |
|
if (ep2->type == NUM) { |
| 117 |
|
ep2->v.num = val; |
| 115 |
– |
ep2->sibling->v.tick = -1; |
| 118 |
|
return; |
| 119 |
|
} |
| 120 |
|
} |
| 129 |
|
ep2->type = NUM; |
| 130 |
|
ep2->v.num = val; |
| 131 |
|
addekid(ep1, ep2); |
| 130 |
– |
ep2 = newnode(); |
| 131 |
– |
ep2->type = TICK; |
| 132 |
– |
ep2->v.tick = -1; |
| 133 |
– |
addekid(ep1, ep2); |
| 134 |
– |
ep2 = newnode(); |
| 135 |
– |
ep2->type = NUM; |
| 136 |
– |
addekid(ep1, ep2); |
| 132 |
|
dclear(vname); |
| 133 |
|
dpush(ep1); |
| 134 |
|
} |
| 154 |
|
|
| 155 |
|
|
| 156 |
|
#ifdef OUTCHAN |
| 157 |
< |
chanout() /* set output channels */ |
| 157 |
> |
chanout(cs) /* set output channels */ |
| 158 |
> |
int (*cs)(); |
| 159 |
|
{ |
| 160 |
|
register EPNODE *ep; |
| 161 |
|
|
| 162 |
|
for (ep = outchan; ep != NULL; ep = ep->sibling) |
| 163 |
< |
chanset(ep->v.kid->v.chan, evalue(ep->v.kid->sibling)); |
| 163 |
> |
(*cs)(ep->v.kid->v.chan, evalue(ep->v.kid->sibling)); |
| 164 |
|
|
| 165 |
|
} |
| 166 |
|
#endif |
| 366 |
|
#endif |
| 367 |
|
{ /* ordinary definition */ |
| 368 |
|
ep = getdefn(); |
| 369 |
+ |
#ifdef REDEFW |
| 370 |
+ |
if (dlookup(dname(ep)) != NULL) { |
| 371 |
+ |
dclear(dname(ep)); |
| 372 |
+ |
wputs(dname(ep)); |
| 373 |
+ |
wputs(": redefined\n"); |
| 374 |
+ |
} |
| 375 |
+ |
#else |
| 376 |
|
dclear(dname(ep)); |
| 377 |
+ |
#endif |
| 378 |
|
dpush(ep); |
| 379 |
|
} |
| 380 |
|
if (nextc != EOF) { |
| 430 |
|
addekid(ep2, ep1); |
| 431 |
|
addekid(ep2, getE1()); |
| 432 |
|
|
| 433 |
+ |
if ( |
| 434 |
|
#ifdef FUNCTION |
| 435 |
< |
if (ep1->type == SYM) |
| 435 |
> |
ep1->type == SYM && |
| 436 |
|
#endif |
| 437 |
< |
{ |
| 437 |
> |
ep1->sibling->type != NUM) { |
| 438 |
|
ep1 = newnode(); |
| 439 |
|
ep1->type = TICK; |
| 440 |
|
ep1->v.tick = -1; |
| 495 |
|
quit(1); |
| 496 |
|
} |
| 497 |
|
ep1 = d->v.kid->sibling; /* get expression */ |
| 498 |
+ |
if (ep1->type == NUM) |
| 499 |
+ |
return(ep1->v.num); /* return if number */ |
| 500 |
|
ep2 = ep1->sibling; /* check time */ |
| 501 |
|
if (ep2->v.tick < 0 || ep2->v.tick < eclock) { |
| 502 |
|
ep2->v.tick = eclock; |
| 503 |
|
ep2 = ep2->sibling; |
| 504 |
< |
ep2->v.num = evalue(ep1); /* compute new value */ |
| 504 |
> |
ep2->v.num = evalue(ep1); /* needs new value */ |
| 505 |
|
} else |
| 506 |
< |
ep2 = ep2->sibling; /* reuse old value */ |
| 506 |
> |
ep2 = ep2->sibling; /* else reuse old value */ |
| 507 |
|
|
| 508 |
|
return(ep2->v.num); |
| 509 |
|
} |
