496 |
return; |
return; |
497 |
} |
} |
498 |
|
|
499 |
|
eval_start: |
500 |
|
|
501 |
switch(env->head->item->type) { |
switch(env->head->item->type) { |
502 |
/* if it's a symbol */ |
/* if it's a symbol */ |
503 |
case symb: |
case symb: |
504 |
rcl(env); /* get its contents */ |
rcl(env); /* get its contents */ |
505 |
if(env->err) return; |
if(env->err) return; |
506 |
if(env->head->item->type!=symb){ /* don't recurse symbols */ |
if(env->head->item->type!=symb){ /* don't recurse symbols */ |
507 |
return eval(env); /* evaluate the value */ |
goto eval_start; |
508 |
} |
} |
509 |
return; |
return; |
510 |
|
|
530 |
if(env->err) return; |
if(env->err) return; |
531 |
if(iterator->next == NULL){ |
if(iterator->next == NULL){ |
532 |
free_val(temp_val); |
free_val(temp_val); |
533 |
return eval(env); |
goto eval_start; |
534 |
} |
} |
535 |
eval(env); |
eval(env); |
536 |
if(env->err) return; |
if(env->err) return; |
553 |
strcat(temp_string, " ]"); |
strcat(temp_string, " ]"); |
554 |
stack_read(env, temp_string); |
stack_read(env, temp_string); |
555 |
free(temp_string); |
free(temp_string); |
556 |
return eval(env); |
goto eval_start; |
557 |
|
|
558 |
case integer: |
case integer: |
559 |
return; |
return; |
1192 |
free_val(test); |
free_val(test); |
1193 |
free_val(loop); |
free_val(loop); |
1194 |
} |
} |
1195 |
|
|
1196 |
|
/* For-loop */ |
1197 |
|
extern void sx_666f72(environment *env) { |
1198 |
|
|
1199 |
|
value *loop, *foo; |
1200 |
|
stackitem *iterator; |
1201 |
|
|
1202 |
|
if((env->head)==NULL || env->head->next==NULL) { |
1203 |
|
printerr("Too Few Arguments"); |
1204 |
|
env->err=1; |
1205 |
|
return; |
1206 |
|
} |
1207 |
|
|
1208 |
|
if(env->head->next->item->type != list) { |
1209 |
|
printerr("Bad Argument Type"); |
1210 |
|
env->err=2; |
1211 |
|
return; |
1212 |
|
} |
1213 |
|
|
1214 |
|
loop= env->head->item; |
1215 |
|
loop->refcount++; |
1216 |
|
toss(env); if(env->err) return; |
1217 |
|
|
1218 |
|
foo= env->head->item; |
1219 |
|
foo->refcount++; |
1220 |
|
toss(env); if(env->err) return; |
1221 |
|
|
1222 |
|
iterator= foo->content.ptr; |
1223 |
|
|
1224 |
|
while(iterator!=NULL) { |
1225 |
|
push_val(&(env->head), iterator->item); |
1226 |
|
push_val(&(env->head), loop); |
1227 |
|
eval(env); if(env->err) return; |
1228 |
|
iterator= iterator->next; |
1229 |
|
} |
1230 |
|
|
1231 |
|
free_val(loop); |
1232 |
|
free_val(foo); |
1233 |
|
} |
1234 |
|
|
1235 |
|
/* 'to' */ |
1236 |
|
extern void to(environment *env) { |
1237 |
|
int i, start, ending; |
1238 |
|
|
1239 |
|
if((env->head)==NULL || env->head->next==NULL) { |
1240 |
|
printerr("Too Few Arguments"); |
1241 |
|
env->err=1; |
1242 |
|
return; |
1243 |
|
} |
1244 |
|
|
1245 |
|
if(env->head->item->type!=integer |
1246 |
|
|| env->head->next->item->type!=integer) { |
1247 |
|
printerr("Bad Argument Type"); |
1248 |
|
env->err=2; |
1249 |
|
return; |
1250 |
|
} |
1251 |
|
|
1252 |
|
ending= env->head->item->content.val; |
1253 |
|
toss(env); if(env->err) return; |
1254 |
|
start= env->head->item->content.val; |
1255 |
|
toss(env); if(env->err) return; |
1256 |
|
|
1257 |
|
push_sym(env, "["); |
1258 |
|
|
1259 |
|
if(ending>=start) { |
1260 |
|
for(i= start; i<=ending; i++) |
1261 |
|
push_int(&(env->head), i); |
1262 |
|
} else { |
1263 |
|
for(i= start; i>=ending; i--) |
1264 |
|
push_int(&(env->head), i); |
1265 |
|
} |
1266 |
|
|
1267 |
|
push_sym(env, "["); |
1268 |
|
pack(env); if(env->err) return; |
1269 |
|
} |