347 |
case list: |
case list: |
348 |
push_sym(env, "list"); |
push_sym(env, "list"); |
349 |
break; |
break; |
|
default: |
|
|
push_sym(env, "unknown"); |
|
|
break; |
|
350 |
} |
} |
351 |
} |
} |
352 |
|
|
377 |
} |
} |
378 |
printf("]"); |
printf("]"); |
379 |
break; |
break; |
|
default: |
|
|
printf("#<unknown %p>", (stack_head->item->content.ptr)); |
|
|
break; |
|
380 |
} |
} |
381 |
} |
} |
382 |
|
|
502 |
rcl(env); /* get its contents */ |
rcl(env); /* get its contents */ |
503 |
if(env->err) return; |
if(env->err) return; |
504 |
if(env->head->item->type!=symb){ /* don't recurse symbols */ |
if(env->head->item->type!=symb){ /* don't recurse symbols */ |
505 |
eval(env); /* evaluate the value */ |
return eval(env); /* evaluate the value */ |
|
return; |
|
506 |
} |
} |
507 |
break; |
return; |
508 |
|
|
509 |
/* If it's a lone function value, run it */ |
/* If it's a lone function value, run it */ |
510 |
case func: |
case func: |
511 |
in_func= (funcp)(env->head->item->content.ptr); |
in_func= (funcp)(env->head->item->content.ptr); |
512 |
toss(env); |
toss(env); |
513 |
if(env->err) return; |
if(env->err) return; |
514 |
(*in_func)(env); |
return (*in_func)(env); |
|
break; |
|
515 |
|
|
516 |
/* If it's a list */ |
/* If it's a list */ |
517 |
case list: |
case list: |
520 |
toss(env); |
toss(env); |
521 |
if(env->err) return; |
if(env->err) return; |
522 |
iterator= (stackitem*)temp_val->content.ptr; |
iterator= (stackitem*)temp_val->content.ptr; |
523 |
while(iterator!=NULL && iterator->item!=NULL) { |
while(iterator!=NULL) { |
524 |
push_val(&(env->head), iterator->item); |
push_val(&(env->head), iterator->item); |
525 |
if(env->head->item->type==symb |
if(env->head->item->type==symb |
526 |
&& strcmp(";", ((symbol*)(env->head->item->content.ptr))->id)==0) { |
&& strcmp(";", ((symbol*)(env->head->item->content.ptr))->id)==0) { |
527 |
toss(env); |
toss(env); |
528 |
if(env->err) return; |
if(env->err) return; |
529 |
|
if(iterator->next == NULL){ |
530 |
|
free_val(temp_val); |
531 |
|
return eval(env); |
532 |
|
} |
533 |
eval(env); |
eval(env); |
534 |
if(env->err) return; |
if(env->err) return; |
535 |
} |
} |
536 |
iterator= iterator->next; |
iterator= iterator->next; |
537 |
} |
} |
538 |
free_val(temp_val); |
free_val(temp_val); |
539 |
break; |
return; |
540 |
|
|
541 |
/* If it's a string */ |
/* If it's a string */ |
542 |
case string: |
case string: |
546 |
if(env->err) return; |
if(env->err) return; |
547 |
temp_string= malloc(strlen((char*)temp_val->content.ptr)+5); |
temp_string= malloc(strlen((char*)temp_val->content.ptr)+5); |
548 |
strcpy(temp_string, "[ "); |
strcpy(temp_string, "[ "); |
549 |
strcat(temp_string, (char*)temp_val->content.ptr); |
strcpy(temp_string+2, (char*)temp_val->content.ptr); |
550 |
|
free_val(temp_val); |
551 |
strcat(temp_string, " ]"); |
strcat(temp_string, " ]"); |
552 |
stack_read(env, temp_string); |
stack_read(env, temp_string); |
|
eval(env); |
|
|
if(env->err) return; |
|
|
free_val(temp_val); |
|
553 |
free(temp_string); |
free(temp_string); |
554 |
break; |
return eval(env); |
555 |
|
|
556 |
case integer: |
case integer: |
557 |
break; |
return; |
558 |
} |
} |
559 |
} |
} |
560 |
|
|
961 |
push_int(&(env->head), a+b); |
push_int(&(env->head), a+b); |
962 |
} |
} |
963 |
|
|
964 |
|
/* - */ |
965 |
|
extern void sx_2d(environment *env) { |
966 |
|
int a; |
967 |
|
|
968 |
|
if((env->head)==NULL || env->head->next==NULL) { |
969 |
|
printerr("Too Few Arguments"); |
970 |
|
env->err=1; |
971 |
|
return; |
972 |
|
} |
973 |
|
|
974 |
|
if(env->head->item->type!=integer |
975 |
|
|| env->head->next->item->type!=integer) { |
976 |
|
printerr("Bad Argument Type"); |
977 |
|
env->err=2; |
978 |
|
return; |
979 |
|
} |
980 |
|
a=env->head->item->content.val; |
981 |
|
toss(env); |
982 |
|
if(env->err) return; |
983 |
|
env->head->item->content.val -= a; |
984 |
|
} |
985 |
|
|
986 |
|
/* > */ |
987 |
|
extern void sx_3e(environment *env) { |
988 |
|
int a; |
989 |
|
|
990 |
|
if((env->head)==NULL || env->head->next==NULL) { |
991 |
|
printerr("Too Few Arguments"); |
992 |
|
env->err=1; |
993 |
|
return; |
994 |
|
} |
995 |
|
|
996 |
|
if(env->head->item->type!=integer |
997 |
|
|| env->head->next->item->type!=integer) { |
998 |
|
printerr("Bad Argument Type"); |
999 |
|
env->err=2; |
1000 |
|
return; |
1001 |
|
} |
1002 |
|
a=env->head->item->content.val; |
1003 |
|
toss(env); |
1004 |
|
if(env->err) return; |
1005 |
|
env->head->item->content.val = (env->head->item->content.val > a); |
1006 |
|
} |
1007 |
|
|
1008 |
/* Return copy of a value */ |
/* Return copy of a value */ |
1009 |
value *copy_val(value *old_value){ |
value *copy_val(value *old_value){ |
1010 |
stackitem *old_item, *new_item, *prev_item; |
stackitem *old_item, *new_item, *prev_item; |
1060 |
push_val(&(env->head), copy_val(env->head->item)); |
push_val(&(env->head), copy_val(env->head->item)); |
1061 |
} |
} |
1062 |
|
|
1063 |
/* If-Then */ |
/* "if", If-Then */ |
1064 |
extern void sx_6966(environment *env) { |
extern void sx_6966(environment *env) { |
1065 |
|
|
1066 |
int truth; |
int truth; |