1350 |
POSSIBILITY OF SUCH DAMAGES.\n"); |
POSSIBILITY OF SUCH DAMAGES.\n"); |
1351 |
} |
} |
1352 |
|
|
|
/* General assoc function */ |
|
|
void assocgen(environment *env, funcp eqfunc) |
|
|
{ |
|
|
value *key, *item; |
|
|
|
|
|
/* Needs two values on the stack, the top one must be an association |
|
|
list */ |
|
|
if(env->head->type==empty || CDR(env->head)->type==empty) { |
|
|
printerr("Too Few Arguments"); |
|
|
env->err= 1; |
|
|
return; |
|
|
} |
|
|
|
|
|
if(CAR(env->head)->type!=tcons) { |
|
|
printerr("Bad Argument Type"); |
|
|
env->err= 2; |
|
|
return; |
|
|
} |
|
|
|
|
|
key=CAR(CDR(env->head)); |
|
|
item=CAR(env->head); |
|
|
|
|
|
while(item->type == tcons){ |
|
|
if(CAR(item)->type != tcons){ |
|
|
printerr("Bad Argument Type"); |
|
|
env->err= 2; |
|
|
return; |
|
|
} |
|
|
push_val(env, key); |
|
|
push_val(env, CAR(CAR(item))); |
|
|
eqfunc(env); if(env->err) return; |
|
|
|
|
|
/* Check the result of 'eqfunc' */ |
|
|
if(env->head->type==empty) { |
|
|
printerr("Too Few Arguments"); |
|
|
env->err= 1; |
|
|
return; |
|
|
} |
|
|
if(CAR(env->head)->type!=integer) { |
|
|
printerr("Bad Argument Type"); |
|
|
env->err= 2; |
|
|
return; |
|
|
} |
|
|
|
|
|
if(CAR(env->head)->content.i){ |
|
|
toss(env); if(env->err) return; |
|
|
break; |
|
|
} |
|
|
toss(env); if(env->err) return; |
|
|
|
|
|
if(item->type!=tcons) { |
|
|
printerr("Bad Argument Type"); |
|
|
env->err= 2; |
|
|
return; |
|
|
} |
|
|
|
|
|
item=CDR(item); |
|
|
} |
|
|
|
|
|
if(item->type == tcons){ /* A match was found */ |
|
|
push_val(env, CAR(item)); |
|
|
} else { |
|
|
push_int(env, 0); |
|
|
} |
|
|
swap(env); if(env->err) return; |
|
|
toss(env); if(env->err) return; |
|
|
swap(env); if(env->err) return; |
|
|
toss(env); |
|
|
} |
|
|
|
|
1353 |
/* Discard the top element of the stack. */ |
/* Discard the top element of the stack. */ |
1354 |
extern void toss(environment *env) |
extern void toss(environment *env) |
1355 |
{ |
{ |