20 |
Teddy Hogeborn <teddy@fukt.bth.se> |
Teddy Hogeborn <teddy@fukt.bth.se> |
21 |
*/ |
*/ |
22 |
|
|
23 |
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#define CAR(X) X->content.c->car |
24 |
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#define CDR(X) X->content.c->cdr |
25 |
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|
26 |
/* printf, sscanf, fgets, fprintf, fopen, perror */ |
/* printf, sscanf, fgets, fprintf, fopen, perror */ |
27 |
#include <stdio.h> |
#include <stdio.h> |
28 |
/* exit, EXIT_SUCCESS, malloc, free */ |
/* exit, EXIT_SUCCESS, malloc, free */ |
37 |
#include <unistd.h> |
#include <unistd.h> |
38 |
/* EX_NOINPUT, EX_USAGE */ |
/* EX_NOINPUT, EX_USAGE */ |
39 |
#include <sysexits.h> |
#include <sysexits.h> |
40 |
|
/* assert */ |
41 |
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#include <assert.h> |
42 |
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|
43 |
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#ifdef __linux__ |
44 |
/* mtrace, muntrace */ |
/* mtrace, muntrace */ |
45 |
#include <mcheck.h> |
#include <mcheck.h> |
46 |
/* ioctl */ |
/* ioctl */ |
47 |
#include <sys/ioctl.h> |
#include <sys/ioctl.h> |
48 |
/* KDMKTONE */ |
/* KDMKTONE */ |
49 |
#include <linux/kd.h> |
#include <linux/kd.h> |
50 |
|
#endif /* __linux__ */ |
51 |
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|
52 |
#include "stack.h" |
#include "stack.h" |
53 |
|
|
56 |
{ |
{ |
57 |
int i; |
int i; |
58 |
|
|
59 |
env->gc_limit= 200; |
env->gc_limit= 400000; |
60 |
env->gc_count= 0; |
env->gc_count= 0; |
61 |
env->gc_ref= NULL; |
env->gc_ref= NULL; |
62 |
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|
63 |
env->head= NULL; |
env->head= new_val(env); |
64 |
|
env->head->type= empty; |
65 |
for(i= 0; i<HASHTBLSIZE; i++) |
for(i= 0; i<HASHTBLSIZE; i++) |
66 |
env->symbols[i]= NULL; |
env->symbols[i]= NULL; |
67 |
env->err= 0; |
env->err= 0; |
79 |
/* Discard the top element of the stack. */ |
/* Discard the top element of the stack. */ |
80 |
extern void toss(environment *env) |
extern void toss(environment *env) |
81 |
{ |
{ |
82 |
stackitem *temp= env->head; |
if(env->head->type==empty) { |
|
|
|
|
if((env->head)==NULL) { |
|
83 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
84 |
env->err= 1; |
env->err= 1; |
85 |
return; |
return; |
86 |
} |
} |
87 |
|
|
88 |
env->head= env->head->next; /* Remove the top stack item */ |
env->head= CDR(env->head); /* Remove the top stack item */ |
|
free(temp); /* Free the old top stack item */ |
|
|
|
|
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env->gc_limit--; |
|
89 |
} |
} |
90 |
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|
91 |
/* Returns a pointer to a pointer to an element in the hash table. */ |
/* Returns a pointer to a pointer to an element in the hash table. */ |
124 |
stackitem *nitem= malloc(sizeof(stackitem)); |
stackitem *nitem= malloc(sizeof(stackitem)); |
125 |
|
|
126 |
nval->content.ptr= NULL; |
nval->content.ptr= NULL; |
127 |
|
nval->type= integer; |
128 |
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|
129 |
nitem->item= nval; |
nitem->item= nval; |
130 |
nitem->next= env->gc_ref; |
nitem->next= env->gc_ref; |
131 |
|
|
132 |
env->gc_ref= nitem; |
env->gc_ref= nitem; |
133 |
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|
134 |
env->gc_count++; |
env->gc_count += sizeof(value); |
135 |
nval->gc.flag.mark= 0; |
nval->gc.flag.mark= 0; |
136 |
nval->gc.flag.protect= 0; |
nval->gc.flag.protect= 0; |
137 |
|
|
142 |
Marked values are not collected by the GC. */ |
Marked values are not collected by the GC. */ |
143 |
inline void gc_mark(value *val) |
inline void gc_mark(value *val) |
144 |
{ |
{ |
145 |
stackitem *iterator; |
if(val==NULL || val->gc.flag.mark) |
|
|
|
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if(val->gc.flag.mark) |
|
146 |
return; |
return; |
147 |
|
|
148 |
val->gc.flag.mark= 1; |
val->gc.flag.mark= 1; |
149 |
|
|
150 |
if(val->type==list) { |
if(val->type==tcons) { |
151 |
iterator= val->content.ptr; |
gc_mark(CAR(val)); |
152 |
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gc_mark(CDR(val)); |
|
while(iterator!=NULL) { |
|
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gc_mark(iterator->item); |
|
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iterator= iterator->next; |
|
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} |
|
153 |
} |
} |
154 |
} |
} |
155 |
|
|
164 |
/* Start GC */ |
/* Start GC */ |
165 |
extern void gc_init(environment *env) |
extern void gc_init(environment *env) |
166 |
{ |
{ |
167 |
stackitem *new_head= NULL, *titem, *iterator; |
stackitem *new_head= NULL, *titem; |
168 |
|
cons *iterator; |
169 |
symbol *tsymb; |
symbol *tsymb; |
170 |
int i; |
int i; |
171 |
|
|
172 |
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if(env->interactive) |
173 |
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printf("Garbage collecting."); |
174 |
|
|
175 |
/* Mark values on stack */ |
/* Mark values on stack */ |
176 |
iterator= env->head; |
gc_mark(env->head); |
177 |
while(iterator!=NULL) { |
|
178 |
gc_mark(iterator->item); |
if(env->interactive) |
179 |
iterator= iterator->next; |
printf("."); |
180 |
} |
|
181 |
|
|
182 |
/* Mark values in hashtable */ |
/* Mark values in hashtable */ |
183 |
for(i= 0; i<HASHTBLSIZE; i++) { |
for(i= 0; i<HASHTBLSIZE; i++) |
184 |
tsymb= env->symbols[i]; |
for(tsymb= env->symbols[i]; tsymb!=NULL; tsymb= tsymb->next) |
|
while(tsymb!=NULL) { |
|
185 |
if (tsymb->val != NULL) |
if (tsymb->val != NULL) |
186 |
gc_mark(tsymb->val); |
gc_mark(tsymb->val); |
187 |
tsymb= tsymb->next; |
|
188 |
} |
|
189 |
} |
if(env->interactive) |
190 |
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printf("."); |
191 |
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|
192 |
env->gc_count= 0; |
env->gc_count= 0; |
193 |
|
|
195 |
|
|
196 |
if(!(env->gc_ref->item->gc.no_gc)){ /* neither mark nor protect */ |
if(!(env->gc_ref->item->gc.no_gc)){ /* neither mark nor protect */ |
197 |
|
|
198 |
switch(env->gc_ref->item->type) { /* Remove content */ |
if(env->gc_ref->item->type==string) /* Remove content */ |
|
case string: |
|
199 |
free(env->gc_ref->item->content.ptr); |
free(env->gc_ref->item->content.ptr); |
200 |
break; |
|
|
case list: |
|
|
while(env->gc_ref->item->content.ptr!=NULL) { |
|
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titem= env->gc_ref->item->content.ptr; |
|
|
env->gc_ref->item->content.ptr= titem->next; |
|
|
free(titem); |
|
|
} |
|
|
default: |
|
|
} |
|
201 |
free(env->gc_ref->item); /* Remove from gc_ref */ |
free(env->gc_ref->item); /* Remove from gc_ref */ |
202 |
titem= env->gc_ref->next; |
titem= env->gc_ref->next; |
203 |
free(env->gc_ref); /* Remove value */ |
free(env->gc_ref); /* Remove value */ |
204 |
env->gc_ref= titem; |
env->gc_ref= titem; |
205 |
continue; |
continue; |
206 |
} |
} |
207 |
|
#ifdef DEBUG |
208 |
|
printf("Kept value (%p)", env->gc_ref->item); |
209 |
|
if(env->gc_ref->item->gc.flag.mark) |
210 |
|
printf(" (marked)"); |
211 |
|
if(env->gc_ref->item->gc.flag.protect) |
212 |
|
printf(" (protected)"); |
213 |
|
switch(env->gc_ref->item->type){ |
214 |
|
case integer: |
215 |
|
printf(" integer: %d", env->gc_ref->item->content.i); |
216 |
|
break; |
217 |
|
case func: |
218 |
|
printf(" func: %p", env->gc_ref->item->content.ptr); |
219 |
|
break; |
220 |
|
case symb: |
221 |
|
printf(" symb: %s", env->gc_ref->item->content.sym->id); |
222 |
|
break; |
223 |
|
case tcons: |
224 |
|
printf(" tcons: %p\t%p", env->gc_ref->item->content.c->car, |
225 |
|
env->gc_ref->item->content.c->cdr); |
226 |
|
break; |
227 |
|
default: |
228 |
|
printf(" <unknown %d>", (env->gc_ref->item->type)); |
229 |
|
} |
230 |
|
printf("\n"); |
231 |
|
#endif /* DEBUG */ |
232 |
|
|
233 |
|
/* Keep values */ |
234 |
|
env->gc_count += sizeof(value); |
235 |
|
if(env->gc_ref->item->type==string) |
236 |
|
env->gc_count += strlen(env->gc_ref->item->content.ptr); |
237 |
|
|
|
/* Keep values */ |
|
238 |
titem= env->gc_ref->next; |
titem= env->gc_ref->next; |
239 |
env->gc_ref->next= new_head; |
env->gc_ref->next= new_head; |
240 |
new_head= env->gc_ref; |
new_head= env->gc_ref; |
241 |
new_head->item->gc.flag.mark= 0; |
new_head->item->gc.flag.mark= 0; |
242 |
env->gc_ref= titem; |
env->gc_ref= titem; |
|
env->gc_count++; |
|
243 |
} |
} |
244 |
|
|
245 |
env->gc_limit= env->gc_count*2; |
if (env->gc_limit < env->gc_count*2) |
246 |
|
env->gc_limit= env->gc_count*2; |
247 |
|
|
248 |
env->gc_ref= new_head; |
env->gc_ref= new_head; |
249 |
|
|
250 |
|
if(env->interactive) |
251 |
|
printf("done (%d bytes still allocated)\n", env->gc_count); |
252 |
|
|
253 |
} |
} |
254 |
|
|
255 |
/* Protect values from GC */ |
/* Protect values from GC */ |
256 |
void protect(value *val) |
void protect(value *val) |
257 |
{ |
{ |
258 |
stackitem *iterator; |
if(val==NULL || val->gc.flag.protect) |
|
|
|
|
if(val->gc.flag.protect) |
|
259 |
return; |
return; |
260 |
|
|
261 |
val->gc.flag.protect= 1; |
val->gc.flag.protect= 1; |
262 |
|
|
263 |
if(val->type==list) { |
if(val->type==tcons) { |
264 |
iterator= val->content.ptr; |
protect(CAR(val)); |
265 |
|
protect(CDR(val)); |
|
while(iterator!=NULL) { |
|
|
protect(iterator->item); |
|
|
iterator= iterator->next; |
|
|
} |
|
266 |
} |
} |
267 |
} |
} |
268 |
|
|
269 |
/* Unprotect values from GC */ |
/* Unprotect values from GC */ |
270 |
void unprotect(value *val) |
void unprotect(value *val) |
271 |
{ |
{ |
272 |
stackitem *iterator; |
if(val==NULL || !(val->gc.flag.protect)) |
|
|
|
|
if(!(val->gc.flag.protect)) |
|
273 |
return; |
return; |
274 |
|
|
275 |
val->gc.flag.protect= 0; |
val->gc.flag.protect= 0; |
276 |
|
|
277 |
if(val->type==list) { |
if(val->type==tcons) { |
278 |
iterator= val->content.ptr; |
unprotect(CAR(val)); |
279 |
|
unprotect(CDR(val)); |
|
while(iterator!=NULL) { |
|
|
unprotect(iterator->item); |
|
|
iterator= iterator->next; |
|
|
} |
|
280 |
} |
} |
281 |
} |
} |
282 |
|
|
283 |
/* Push a value onto the stack */ |
/* Push a value onto the stack */ |
284 |
void push_val(environment *env, value *val) |
void push_val(environment *env, value *val) |
285 |
{ |
{ |
286 |
stackitem *new_item= malloc(sizeof(stackitem)); |
value *new_value= new_val(env); |
287 |
new_item->item= val; |
|
288 |
new_item->next= env->head; |
new_value->content.c= malloc(sizeof(cons)); |
289 |
env->head= new_item; |
assert(new_value->content.c!=NULL); |
290 |
|
new_value->type= tcons; |
291 |
|
CAR(new_value)= val; |
292 |
|
CDR(new_value)= env->head; |
293 |
|
env->head= new_value; |
294 |
} |
} |
295 |
|
|
296 |
/* Push an integer onto the stack */ |
/* Push an integer onto the stack */ |
319 |
void push_cstring(environment *env, const char *in_string) |
void push_cstring(environment *env, const char *in_string) |
320 |
{ |
{ |
321 |
value *new_value= new_val(env); |
value *new_value= new_val(env); |
322 |
|
int length= strlen(in_string)+1; |
323 |
|
|
324 |
new_value->content.ptr= malloc(strlen(in_string)+1); |
new_value->content.ptr= malloc(length); |
325 |
|
env->gc_count += length; |
326 |
strcpy(new_value->content.ptr, in_string); |
strcpy(new_value->content.ptr, in_string); |
327 |
new_value->type= string; |
new_value->type= string; |
328 |
|
|
353 |
{ |
{ |
354 |
char *new_string; |
char *new_string; |
355 |
|
|
356 |
if((env->head)==NULL) { |
if(env->head->type==empty) { |
357 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
358 |
env->err= 1; |
env->err= 1; |
359 |
return; |
return; |
360 |
} |
} |
361 |
|
|
362 |
if(env->head->item->type!=string) { |
if(CAR(env->head)->type!=string) { |
363 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
364 |
env->err= 2; |
env->err= 2; |
365 |
return; |
return; |
366 |
} |
} |
367 |
|
|
368 |
new_string= mangle_str((const char *)(env->head->item->content.ptr)); |
new_string= |
369 |
|
mangle_str((const char *)(CAR(env->head)->content.ptr)); |
370 |
|
|
371 |
toss(env); |
toss(env); |
372 |
if(env->err) return; |
if(env->err) return; |
452 |
{ |
{ |
453 |
int typenum; |
int typenum; |
454 |
|
|
455 |
if((env->head)==NULL) { |
if(env->head->type==empty) { |
456 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
457 |
env->err=1; |
env->err= 1; |
458 |
return; |
return; |
459 |
} |
} |
460 |
typenum=env->head->item->type; |
|
461 |
|
typenum= CAR(env->head)->type; |
462 |
toss(env); |
toss(env); |
463 |
switch(typenum){ |
switch(typenum){ |
464 |
case integer: |
case integer: |
476 |
case func: |
case func: |
477 |
push_sym(env, "function"); |
push_sym(env, "function"); |
478 |
break; |
break; |
479 |
case list: |
case tcons: |
480 |
push_sym(env, "list"); |
push_sym(env, "list"); |
481 |
break; |
break; |
482 |
} |
} |
483 |
} |
} |
484 |
|
|
485 |
/* Prints the top element of the stack. */ |
/* Prints the top element of the stack. */ |
486 |
void print_h(stackitem *stack_head, int noquote) |
void print_h(value *stack_head, int noquote) |
487 |
{ |
{ |
488 |
switch(stack_head->item->type) { |
switch(CAR(stack_head)->type) { |
489 |
case integer: |
case integer: |
490 |
printf("%d", stack_head->item->content.i); |
printf("%d", CAR(stack_head)->content.i); |
491 |
break; |
break; |
492 |
case tfloat: |
case tfloat: |
493 |
printf("%f", stack_head->item->content.f); |
printf("%f", CAR(stack_head)->content.f); |
494 |
break; |
break; |
495 |
case string: |
case string: |
496 |
if(noquote) |
if(noquote) |
497 |
printf("%s", (char*)stack_head->item->content.ptr); |
printf("%s", (char*)CAR(stack_head)->content.ptr); |
498 |
else |
else |
499 |
printf("\"%s\"", (char*)stack_head->item->content.ptr); |
printf("\"%s\"", (char*)CAR(stack_head)->content.ptr); |
500 |
break; |
break; |
501 |
case symb: |
case symb: |
502 |
printf("%s", ((symbol *)(stack_head->item->content.ptr))->id); |
printf("%s", CAR(stack_head)->content.sym->id); |
503 |
break; |
break; |
504 |
case func: |
case func: |
505 |
printf("#<function %p>", (funcp)(stack_head->item->content.ptr)); |
printf("#<function %p>", (funcp)(CAR(stack_head)->content.ptr)); |
506 |
break; |
break; |
507 |
case list: |
case tcons: |
508 |
/* A list is just a stack, so make stack_head point to it */ |
/* A list is just a stack, so make stack_head point to it */ |
509 |
stack_head=(stackitem *)(stack_head->item->content.ptr); |
stack_head= CAR(stack_head); |
510 |
printf("[ "); |
printf("[ "); |
511 |
while(stack_head != NULL) { |
while(CAR(stack_head)->type != empty) { |
512 |
print_h(stack_head, noquote); |
print_h(stack_head, noquote); |
513 |
printf(" "); |
if(CDR(stack_head)->type==tcons) |
514 |
stack_head=stack_head->next; |
printf(" "); |
515 |
|
else |
516 |
|
printf(" . "); /* Improper list */ |
517 |
|
stack_head= CDR(stack_head); |
518 |
} |
} |
519 |
printf("]"); |
printf(" ]"); |
520 |
break; |
break; |
521 |
} |
} |
522 |
} |
} |
523 |
|
|
524 |
extern void print_(environment *env) |
extern void print_(environment *env) |
525 |
{ |
{ |
526 |
if(env->head==NULL) { |
if(env->head->type==empty) { |
527 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
528 |
env->err=1; |
env->err= 1; |
529 |
return; |
return; |
530 |
} |
} |
531 |
print_h(env->head, 0); |
print_h(env->head, 0); |
542 |
|
|
543 |
extern void princ_(environment *env) |
extern void princ_(environment *env) |
544 |
{ |
{ |
545 |
if(env->head==NULL) { |
if(env->head->type==empty) { |
546 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
547 |
env->err=1; |
env->err= 1; |
548 |
return; |
return; |
549 |
} |
} |
550 |
print_h(env->head, 1); |
print_h(env->head, 1); |
559 |
} |
} |
560 |
|
|
561 |
/* Only to be called by function printstack. */ |
/* Only to be called by function printstack. */ |
562 |
void print_st(stackitem *stack_head, long counter) |
void print_st(value *stack_head, long counter) |
563 |
{ |
{ |
564 |
if(stack_head->next != NULL) |
if(CDR(stack_head)->type != empty) |
565 |
print_st(stack_head->next, counter+1); |
print_st(CDR(stack_head), counter+1); |
566 |
printf("%ld: ", counter); |
printf("%ld: ", counter); |
567 |
print_h(stack_head, 0); |
print_h(stack_head, 0); |
568 |
nl(); |
nl(); |
571 |
/* Prints the stack. */ |
/* Prints the stack. */ |
572 |
extern void printstack(environment *env) |
extern void printstack(environment *env) |
573 |
{ |
{ |
574 |
if(env->head == NULL) { |
if(env->head->type == empty) { |
575 |
printf("Stack Empty\n"); |
printf("Stack Empty\n"); |
576 |
return; |
return; |
577 |
} |
} |
582 |
/* Swap the two top elements on the stack. */ |
/* Swap the two top elements on the stack. */ |
583 |
extern void swap(environment *env) |
extern void swap(environment *env) |
584 |
{ |
{ |
585 |
stackitem *temp= env->head; |
value *temp= env->head; |
586 |
|
|
587 |
if(env->head==NULL || env->head->next==NULL) { |
if(env->head->type == empty || CDR(env->head)->type == empty) { |
588 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
589 |
env->err=1; |
env->err=1; |
590 |
return; |
return; |
591 |
} |
} |
592 |
|
|
593 |
env->head= env->head->next; |
env->head= CDR(env->head); |
594 |
temp->next= env->head->next; |
CDR(temp)= CDR(env->head); |
595 |
env->head->next= temp; |
CDR(env->head)= temp; |
596 |
} |
} |
597 |
|
|
598 |
/* Rotate the first three elements on the stack. */ |
/* Rotate the first three elements on the stack. */ |
599 |
extern void rot(environment *env) |
extern void rot(environment *env) |
600 |
{ |
{ |
601 |
stackitem *temp= env->head; |
value *temp= env->head; |
602 |
|
|
603 |
if(env->head==NULL || env->head->next==NULL |
if(env->head->type == empty || CDR(env->head)->type == empty |
604 |
|| env->head->next->next==NULL) { |
|| CDR(CDR(env->head))->type == empty) { |
605 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
606 |
env->err=1; |
env->err= 1; |
607 |
return; |
return; |
608 |
} |
} |
609 |
|
|
610 |
env->head= env->head->next->next; |
env->head= CDR(CDR(env->head)); |
611 |
temp->next->next= env->head->next; |
CDR(CDR(temp))= CDR(env->head); |
612 |
env->head->next= temp; |
CDR(env->head)= temp; |
613 |
} |
} |
614 |
|
|
615 |
/* Recall a value from a symbol, if bound */ |
/* Recall a value from a symbol, if bound */ |
617 |
{ |
{ |
618 |
value *val; |
value *val; |
619 |
|
|
620 |
if(env->head == NULL) { |
if(env->head->type==empty) { |
621 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
622 |
env->err=1; |
env->err= 1; |
623 |
return; |
return; |
624 |
} |
} |
625 |
|
|
626 |
if(env->head->item->type!=symb) { |
if(CAR(env->head)->type!=symb) { |
627 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
628 |
env->err=2; |
env->err= 2; |
629 |
return; |
return; |
630 |
} |
} |
631 |
|
|
632 |
val=((symbol *)(env->head->item->content.ptr))->val; |
val= CAR(env->head)->content.sym->val; |
633 |
if(val == NULL){ |
if(val == NULL){ |
634 |
printerr("Unbound Variable"); |
printerr("Unbound Variable"); |
635 |
env->err=3; |
env->err= 3; |
636 |
return; |
return; |
637 |
} |
} |
638 |
protect(val); |
push_val(env, val); /* Return the symbol's bound value */ |
639 |
toss(env); /* toss the symbol */ |
swap(env); |
640 |
|
if(env->err) return; |
641 |
|
toss(env); /* toss the symbol */ |
642 |
if(env->err) return; |
if(env->err) return; |
|
push_val(env, val); /* Return its bound value */ |
|
|
unprotect(val); |
|
643 |
} |
} |
644 |
|
|
645 |
/* If the top element is a symbol, determine if it's bound to a |
/* If the top element is a symbol, determine if it's bound to a |
649 |
{ |
{ |
650 |
funcp in_func; |
funcp in_func; |
651 |
value* temp_val; |
value* temp_val; |
652 |
stackitem* iterator; |
value* iterator; |
653 |
|
|
654 |
eval_start: |
eval_start: |
655 |
|
|
656 |
gc_maybe(env); |
gc_maybe(env); |
657 |
|
|
658 |
if(env->head==NULL) { |
if(env->head->type==empty) { |
659 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
660 |
env->err=1; |
env->err= 1; |
661 |
return; |
return; |
662 |
} |
} |
663 |
|
|
664 |
switch(env->head->item->type) { |
switch(CAR(env->head)->type) { |
665 |
/* if it's a symbol */ |
/* if it's a symbol */ |
666 |
case symb: |
case symb: |
667 |
rcl(env); /* get its contents */ |
rcl(env); /* get its contents */ |
668 |
if(env->err) return; |
if(env->err) return; |
669 |
if(env->head->item->type!=symb){ /* don't recurse symbols */ |
if(CAR(env->head)->type!=symb){ /* don't recurse symbols */ |
670 |
goto eval_start; |
goto eval_start; |
671 |
} |
} |
672 |
return; |
return; |
673 |
|
|
674 |
/* If it's a lone function value, run it */ |
/* If it's a lone function value, run it */ |
675 |
case func: |
case func: |
676 |
in_func= (funcp)(env->head->item->content.ptr); |
in_func= (funcp)(CAR(env->head)->content.ptr); |
677 |
toss(env); |
toss(env); |
678 |
if(env->err) return; |
if(env->err) return; |
679 |
return in_func(env); |
return in_func(env); |
680 |
|
|
681 |
/* If it's a list */ |
/* If it's a list */ |
682 |
case list: |
case tcons: |
683 |
temp_val= env->head->item; |
temp_val= CAR(env->head); |
684 |
protect(temp_val); |
protect(temp_val); |
685 |
|
|
686 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
687 |
iterator= (stackitem*)temp_val->content.ptr; |
iterator= temp_val; |
688 |
|
|
689 |
while(iterator!=NULL) { |
while(iterator->type != empty) { |
690 |
push_val(env, iterator->item); |
push_val(env, CAR(iterator)); |
691 |
|
|
692 |
if(env->head->item->type==symb |
if(CAR(env->head)->type==symb |
693 |
&& strcmp(";", ((symbol*)(env->head->item->content.ptr))->id)==0) { |
&& CAR(env->head)->content.sym->id[0]==';') { |
694 |
toss(env); |
toss(env); |
695 |
if(env->err) return; |
if(env->err) return; |
696 |
|
|
697 |
if(iterator->next == NULL){ |
if(CDR(iterator)->type == empty){ |
698 |
goto eval_start; |
goto eval_start; |
699 |
} |
} |
700 |
eval(env); |
eval(env); |
701 |
if(env->err) return; |
if(env->err) return; |
702 |
} |
} |
703 |
iterator= iterator->next; |
if (CDR(iterator)->type == empty || CDR(iterator)->type == tcons) |
704 |
|
iterator= CDR(iterator); |
705 |
|
else { |
706 |
|
printerr("Bad Argument Type"); /* Improper list */ |
707 |
|
env->err= 2; |
708 |
|
return; |
709 |
|
} |
710 |
} |
} |
711 |
unprotect(temp_val); |
unprotect(temp_val); |
712 |
return; |
return; |
719 |
/* Reverse (flip) a list */ |
/* Reverse (flip) a list */ |
720 |
extern void rev(environment *env) |
extern void rev(environment *env) |
721 |
{ |
{ |
722 |
stackitem *old_head, *new_head, *item; |
value *old_head, *new_head, *item; |
723 |
|
|
724 |
if((env->head)==NULL) { |
if(env->head->type==empty) { |
725 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
726 |
env->err= 1; |
env->err= 1; |
727 |
return; |
return; |
728 |
} |
} |
729 |
|
|
730 |
if(env->head->item->type!=list) { |
if(CAR(env->head)->type==empty) |
731 |
|
return; /* Don't reverse an empty list */ |
732 |
|
|
733 |
|
if(CAR(env->head)->type!=tcons) { |
734 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
735 |
env->err= 2; |
env->err= 2; |
736 |
return; |
return; |
737 |
} |
} |
738 |
|
|
739 |
old_head= (stackitem *)(env->head->item->content.ptr); |
old_head= CAR(env->head); |
740 |
new_head= NULL; |
new_head= new_val(env); |
741 |
while(old_head != NULL){ |
new_head->type= empty; |
742 |
|
while(old_head->type != empty) { |
743 |
item= old_head; |
item= old_head; |
744 |
old_head= old_head->next; |
old_head= CDR(old_head); |
745 |
item->next= new_head; |
CDR(item)= new_head; |
746 |
new_head= item; |
new_head= item; |
747 |
} |
} |
748 |
env->head->item->content.ptr= new_head; |
CAR(env->head)= new_head; |
749 |
} |
} |
750 |
|
|
751 |
/* Make a list. */ |
/* Make a list. */ |
752 |
extern void pack(environment *env) |
extern void pack(environment *env) |
753 |
{ |
{ |
754 |
stackitem *iterator, *temp; |
value *iterator, *temp, *ending; |
|
value *pack; |
|
755 |
|
|
756 |
iterator= env->head; |
ending=new_val(env); |
757 |
pack= new_val(env); |
ending->type=empty; |
|
protect(pack); |
|
758 |
|
|
759 |
if(iterator==NULL |
iterator= env->head; |
760 |
|| (iterator->item->type==symb |
if(iterator->type == empty |
761 |
&& ((symbol*)(iterator->item->content.ptr))->id[0]=='[')) { |
|| (CAR(iterator)->type==symb |
762 |
temp= NULL; |
&& CAR(iterator)->content.sym->id[0]=='[')) { |
763 |
|
temp= ending; |
764 |
toss(env); |
toss(env); |
765 |
} else { |
} else { |
766 |
/* Search for first delimiter */ |
/* Search for first delimiter */ |
767 |
while(iterator->next!=NULL |
while(CDR(iterator)->type != empty |
768 |
&& (iterator->next->item->type!=symb |
&& (CAR(CDR(iterator))->type!=symb |
769 |
|| ((symbol*)(iterator->next->item->content.ptr))->id[0]!='[')) |
|| CAR(CDR(iterator))->content.sym->id[0]!='[')) |
770 |
iterator= iterator->next; |
iterator= CDR(iterator); |
771 |
|
|
772 |
/* Extract list */ |
/* Extract list */ |
773 |
temp= env->head; |
temp= env->head; |
774 |
env->head= iterator->next; |
env->head= CDR(iterator); |
775 |
iterator->next= NULL; |
CDR(iterator)= ending; |
776 |
|
|
777 |
pack->type= list; |
if(env->head->type != empty) |
|
pack->content.ptr= temp; |
|
|
|
|
|
if(env->head!=NULL) |
|
778 |
toss(env); |
toss(env); |
779 |
} |
} |
780 |
|
|
781 |
/* Push list */ |
/* Push list */ |
782 |
|
|
783 |
push_val(env, pack); |
push_val(env, temp); |
784 |
rev(env); |
rev(env); |
|
|
|
|
unprotect(pack); |
|
785 |
} |
} |
786 |
|
|
787 |
/* Relocate elements of the list on the stack. */ |
/* Relocate elements of the list on the stack. */ |
788 |
extern void expand(environment *env) |
extern void expand(environment *env) |
789 |
{ |
{ |
790 |
stackitem *temp, *new_head; |
value *temp, *new_head; |
791 |
|
|
792 |
/* Is top element a list? */ |
/* Is top element a list? */ |
793 |
if(env->head==NULL) { |
if(env->head->type==empty) { |
794 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
795 |
env->err= 1; |
env->err= 1; |
796 |
return; |
return; |
797 |
} |
} |
798 |
if(env->head->item->type!=list) { |
|
799 |
|
if(CAR(env->head)->type!=tcons) { |
800 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
801 |
env->err= 2; |
env->err= 2; |
802 |
return; |
return; |
808 |
return; |
return; |
809 |
|
|
810 |
/* The first list element is the new stack head */ |
/* The first list element is the new stack head */ |
811 |
new_head= temp= env->head->item->content.ptr; |
new_head= temp= CAR(env->head); |
812 |
|
|
813 |
toss(env); |
toss(env); |
814 |
|
|
815 |
/* Find the end of the list */ |
/* Find the end of the list */ |
816 |
while(temp->next!=NULL) |
while(CDR(temp)->type != empty) { |
817 |
temp= temp->next; |
if (CDR(temp)->type == tcons) |
818 |
|
temp= CDR(temp); |
819 |
|
else { |
820 |
|
printerr("Bad Argument Type"); /* Improper list */ |
821 |
|
env->err= 2; |
822 |
|
return; |
823 |
|
} |
824 |
|
} |
825 |
|
|
826 |
/* Connect the tail of the list with the old stack head */ |
/* Connect the tail of the list with the old stack head */ |
827 |
temp->next= env->head; |
CDR(temp)= env->head; |
828 |
env->head= new_head; /* ...and voila! */ |
env->head= new_head; /* ...and voila! */ |
829 |
|
|
830 |
} |
} |
833 |
extern void eq(environment *env) |
extern void eq(environment *env) |
834 |
{ |
{ |
835 |
void *left, *right; |
void *left, *right; |
|
int result; |
|
836 |
|
|
837 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
838 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
839 |
env->err= 1; |
env->err= 1; |
840 |
return; |
return; |
841 |
} |
} |
842 |
|
|
843 |
left= env->head->item->content.ptr; |
left= CAR(env->head)->content.ptr; |
844 |
swap(env); |
right= CAR(CDR(env->head))->content.ptr; |
|
right= env->head->item->content.ptr; |
|
|
result= (left==right); |
|
|
|
|
845 |
toss(env); toss(env); |
toss(env); toss(env); |
846 |
push_int(env, result); |
|
847 |
|
push_int(env, left==right); |
848 |
} |
} |
849 |
|
|
850 |
/* Negates the top element on the stack. */ |
/* Negates the top element on the stack. */ |
852 |
{ |
{ |
853 |
int val; |
int val; |
854 |
|
|
855 |
if((env->head)==NULL) { |
if(env->head->type==empty) { |
856 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
857 |
env->err= 1; |
env->err= 1; |
858 |
return; |
return; |
859 |
} |
} |
860 |
|
|
861 |
if(env->head->item->type!=integer) { |
if(CAR(env->head)->type!=integer) { |
862 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
863 |
env->err= 2; |
env->err= 2; |
864 |
return; |
return; |
865 |
} |
} |
866 |
|
|
867 |
val= env->head->item->content.i; |
val= CAR(env->head)->content.i; |
868 |
toss(env); |
toss(env); |
869 |
push_int(env, !val); |
push_int(env, !val); |
870 |
} |
} |
883 |
symbol *sym; |
symbol *sym; |
884 |
|
|
885 |
/* Needs two values on the stack, the top one must be a symbol */ |
/* Needs two values on the stack, the top one must be a symbol */ |
886 |
if(env->head==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
887 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
888 |
env->err= 1; |
env->err= 1; |
889 |
return; |
return; |
890 |
} |
} |
891 |
|
|
892 |
if(env->head->item->type!=symb) { |
if(CAR(env->head)->type!=symb) { |
893 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
894 |
env->err= 2; |
env->err= 2; |
895 |
return; |
return; |
896 |
} |
} |
897 |
|
|
898 |
/* long names are a pain */ |
/* long names are a pain */ |
899 |
sym= env->head->item->content.ptr; |
sym= CAR(env->head)->content.ptr; |
900 |
|
|
901 |
/* Bind the symbol to the value */ |
/* Bind the symbol to the value */ |
902 |
sym->val= env->head->next->item; |
sym->val= CAR(CDR(env->head)); |
903 |
|
|
904 |
toss(env); toss(env); |
toss(env); toss(env); |
905 |
} |
} |
922 |
env->gc_limit= 0; |
env->gc_limit= 0; |
923 |
gc_maybe(env); |
gc_maybe(env); |
924 |
|
|
925 |
|
words(env); |
926 |
|
|
927 |
if(env->free_string!=NULL) |
if(env->free_string!=NULL) |
928 |
free(env->free_string); |
free(env->free_string); |
929 |
|
|
930 |
|
#ifdef __linux__ |
931 |
muntrace(); |
muntrace(); |
932 |
|
#endif |
933 |
|
|
934 |
exit(EXIT_SUCCESS); |
exit(EXIT_SUCCESS); |
935 |
} |
} |
937 |
/* Clear stack */ |
/* Clear stack */ |
938 |
extern void clear(environment *env) |
extern void clear(environment *env) |
939 |
{ |
{ |
940 |
while(env->head!=NULL) |
while(env->head->type != empty) |
941 |
toss(env); |
toss(env); |
942 |
} |
} |
943 |
|
|
950 |
for(i= 0; i<HASHTBLSIZE; i++) { |
for(i= 0; i<HASHTBLSIZE; i++) { |
951 |
temp= env->symbols[i]; |
temp= env->symbols[i]; |
952 |
while(temp!=NULL) { |
while(temp!=NULL) { |
953 |
|
#ifdef DEBUG |
954 |
|
if (temp->val != NULL && temp->val->gc.flag.protect) |
955 |
|
printf("(protected) "); |
956 |
|
#endif /* DEBUG */ |
957 |
printf("%s\n", temp->id); |
printf("%s\n", temp->id); |
958 |
temp= temp->next; |
temp= temp->next; |
959 |
} |
} |
976 |
extern void forget(environment *env) |
extern void forget(environment *env) |
977 |
{ |
{ |
978 |
char* sym_id; |
char* sym_id; |
|
stackitem *stack_head= env->head; |
|
979 |
|
|
980 |
if(stack_head==NULL) { |
if(env->head->type==empty) { |
981 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
982 |
env->err=1; |
env->err= 1; |
983 |
return; |
return; |
984 |
} |
} |
985 |
|
|
986 |
if(stack_head->item->type!=symb) { |
if(CAR(env->head)->type!=symb) { |
987 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
988 |
env->err=2; |
env->err= 2; |
989 |
return; |
return; |
990 |
} |
} |
991 |
|
|
992 |
sym_id= ((symbol*)(stack_head->item->content.ptr))->id; |
sym_id= CAR(env->head)->content.sym->id; |
993 |
toss(env); |
toss(env); |
994 |
|
|
995 |
return forget_sym(hash(env->symbols, sym_id)); |
return forget_sym(hash(env->symbols, sym_id)); |
1007 |
|
|
1008 |
int c; /* getopt option character */ |
int c; /* getopt option character */ |
1009 |
|
|
1010 |
|
#ifdef __linux__ |
1011 |
mtrace(); |
mtrace(); |
1012 |
|
#endif |
1013 |
|
|
1014 |
init_env(&myenv); |
init_env(&myenv); |
1015 |
|
|
1023 |
break; |
break; |
1024 |
case '?': |
case '?': |
1025 |
fprintf (stderr, |
fprintf (stderr, |
1026 |
"Unknown option character `\\x%x'.\n", |
"Unknown option character '\\x%x'.\n", |
1027 |
optopt); |
optopt); |
1028 |
return EX_USAGE; |
return EX_USAGE; |
1029 |
default: |
default: |
1042 |
if(myenv.interactive) { |
if(myenv.interactive) { |
1043 |
printf("Stack version $Revision$\n\ |
printf("Stack version $Revision$\n\ |
1044 |
Copyright (C) 2002 Mats Alritzson and Teddy Hogeborn\n\ |
Copyright (C) 2002 Mats Alritzson and Teddy Hogeborn\n\ |
1045 |
Stack comes with ABSOLUTELY NO WARRANTY; for details type `warranty;'.\n\ |
Stack comes with ABSOLUTELY NO WARRANTY; for details type 'warranty;'.\n\ |
1046 |
This is free software, and you are welcome to redistribute it\n\ |
This is free software, and you are welcome to redistribute it\n\ |
1047 |
under certain conditions; type `copying;' for details.\n"); |
under certain conditions; type 'copying;' for details.\n"); |
1048 |
} |
} |
1049 |
|
|
1050 |
while(1) { |
while(1) { |
1059 |
} |
} |
1060 |
myenv.err=0; |
myenv.err=0; |
1061 |
} |
} |
1062 |
sx_72656164(&myenv); |
sx_72656164(&myenv); /* "read" */ |
1063 |
if (myenv.err==4) { |
if (myenv.err==4) { /* EOF */ |
1064 |
return EXIT_SUCCESS; /* EOF */ |
myenv.err=0; |
1065 |
} else if(myenv.head!=NULL |
quit(&myenv); |
1066 |
&& myenv.head->item->type==symb |
} else if(myenv.head->type!=empty |
1067 |
&& ((symbol*)(myenv.head->item->content.ptr))->id[0]==';') { |
&& CAR(myenv.head)->type==symb |
1068 |
|
&& CAR(myenv.head)->content.sym->id[0] |
1069 |
|
==';') { |
1070 |
toss(&myenv); /* No error check in main */ |
toss(&myenv); /* No error check in main */ |
1071 |
eval(&myenv); |
eval(&myenv); |
1072 |
} |
} |
1085 |
char* new_string; |
char* new_string; |
1086 |
value *a_val, *b_val; |
value *a_val, *b_val; |
1087 |
|
|
1088 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1089 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1090 |
env->err= 1; |
env->err= 1; |
1091 |
return; |
return; |
1092 |
} |
} |
1093 |
|
|
1094 |
if(env->head->item->type==string |
if(CAR(env->head)->type==string |
1095 |
&& env->head->next->item->type==string) { |
&& CAR(CDR(env->head))->type==string) { |
1096 |
a_val= env->head->item; |
a_val= CAR(env->head); |
1097 |
b_val= env->head->next->item; |
b_val= CAR(CDR(env->head)); |
1098 |
protect(a_val); protect(b_val); |
protect(a_val); protect(b_val); |
1099 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1100 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1109 |
return; |
return; |
1110 |
} |
} |
1111 |
|
|
1112 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
1113 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
1114 |
a=env->head->item->content.i; |
a= CAR(env->head)->content.i; |
1115 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1116 |
b=env->head->item->content.i; |
b= CAR(env->head)->content.i; |
1117 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1118 |
push_int(env, b+a); |
push_int(env, b+a); |
1119 |
|
|
1120 |
return; |
return; |
1121 |
} |
} |
1122 |
|
|
1123 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
1124 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
1125 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
1126 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1127 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
1128 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1129 |
push_float(env, fb+fa); |
push_float(env, fb+fa); |
1130 |
|
|
1131 |
return; |
return; |
1132 |
} |
} |
1133 |
|
|
1134 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
1135 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
1136 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
1137 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1138 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
1139 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1140 |
push_float(env, b+fa); |
push_float(env, b+fa); |
1141 |
|
|
1142 |
return; |
return; |
1143 |
} |
} |
1144 |
|
|
1145 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
1146 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
1147 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
1148 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1149 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
1150 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1151 |
push_float(env, fb+a); |
push_float(env, fb+a); |
1152 |
|
|
1163 |
int a, b; |
int a, b; |
1164 |
float fa, fb; |
float fa, fb; |
1165 |
|
|
1166 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1167 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1168 |
env->err=1; |
env->err=1; |
1169 |
return; |
return; |
1170 |
} |
} |
1171 |
|
|
1172 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
1173 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
1174 |
a=env->head->item->content.i; |
a= CAR(env->head)->content.i; |
1175 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1176 |
b=env->head->item->content.i; |
b= CAR(env->head)->content.i; |
1177 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1178 |
push_int(env, b-a); |
push_int(env, b-a); |
1179 |
|
|
1180 |
return; |
return; |
1181 |
} |
} |
1182 |
|
|
1183 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
1184 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
1185 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
1186 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1187 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
1188 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1189 |
push_float(env, fb-fa); |
push_float(env, fb-fa); |
1190 |
|
|
1191 |
return; |
return; |
1192 |
} |
} |
1193 |
|
|
1194 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
1195 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
1196 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
1197 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1198 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
1199 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1200 |
push_float(env, b-fa); |
push_float(env, b-fa); |
1201 |
|
|
1202 |
return; |
return; |
1203 |
} |
} |
1204 |
|
|
1205 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
1206 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
1207 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
1208 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1209 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
1210 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1211 |
push_float(env, fb-a); |
push_float(env, fb-a); |
1212 |
|
|
1223 |
int a, b; |
int a, b; |
1224 |
float fa, fb; |
float fa, fb; |
1225 |
|
|
1226 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1227 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1228 |
env->err=1; |
env->err= 1; |
1229 |
return; |
return; |
1230 |
} |
} |
1231 |
|
|
1232 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
1233 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
1234 |
a=env->head->item->content.i; |
a= CAR(env->head)->content.i; |
1235 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1236 |
b=env->head->item->content.i; |
b= CAR(env->head)->content.i; |
1237 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1238 |
push_int(env, b>a); |
push_int(env, b>a); |
1239 |
|
|
1240 |
return; |
return; |
1241 |
} |
} |
1242 |
|
|
1243 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
1244 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
1245 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
1246 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1247 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
1248 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1249 |
push_int(env, fb>fa); |
push_int(env, fb>fa); |
1250 |
|
|
1251 |
return; |
return; |
1252 |
} |
} |
1253 |
|
|
1254 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
1255 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
1256 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
1257 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1258 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
1259 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1260 |
push_int(env, b>fa); |
push_int(env, b>fa); |
1261 |
|
|
1262 |
return; |
return; |
1263 |
} |
} |
1264 |
|
|
1265 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
1266 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
1267 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
1268 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1269 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
1270 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1271 |
push_int(env, fb>a); |
push_int(env, fb>a); |
1272 |
|
|
1274 |
} |
} |
1275 |
|
|
1276 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1277 |
env->err=2; |
env->err= 2; |
1278 |
} |
} |
1279 |
|
|
1280 |
/* "<" */ |
/* "<" */ |
1301 |
/* Return copy of a value */ |
/* Return copy of a value */ |
1302 |
value *copy_val(environment *env, value *old_value) |
value *copy_val(environment *env, value *old_value) |
1303 |
{ |
{ |
|
stackitem *old_item, *new_item, *prev_item; |
|
1304 |
value *new_value; |
value *new_value; |
1305 |
|
|
1306 |
|
if(old_value==NULL) |
1307 |
|
return NULL; |
1308 |
|
|
1309 |
protect(old_value); |
protect(old_value); |
1310 |
new_value= new_val(env); |
new_value= new_val(env); |
|
protect(new_value); |
|
1311 |
new_value->type= old_value->type; |
new_value->type= old_value->type; |
1312 |
|
|
1313 |
switch(old_value->type){ |
switch(old_value->type){ |
1321 |
(char *)(new_value->content.ptr)= |
(char *)(new_value->content.ptr)= |
1322 |
strdup((char *)(old_value->content.ptr)); |
strdup((char *)(old_value->content.ptr)); |
1323 |
break; |
break; |
1324 |
case list: |
case tcons: |
|
new_value->content.ptr= NULL; |
|
1325 |
|
|
1326 |
prev_item= NULL; |
new_value->content.c= malloc(sizeof(cons)); |
1327 |
old_item= (stackitem*)(old_value->content.ptr); |
assert(new_value->content.c!=NULL); |
1328 |
|
|
1329 |
while(old_item != NULL) { /* While list is not empty */ |
CAR(new_value)= copy_val(env, CAR(old_value)); /* recurse */ |
1330 |
new_item= malloc(sizeof(stackitem)); |
CDR(new_value)= copy_val(env, CDR(old_value)); /* recurse */ |
|
new_item->item= copy_val(env, old_item->item); /* recurse */ |
|
|
new_item->next= NULL; |
|
|
if(prev_item != NULL) /* If this wasn't the first item */ |
|
|
prev_item->next= new_item; /* point the previous item to the |
|
|
new item */ |
|
|
else |
|
|
new_value->content.ptr= new_item; |
|
|
old_item= old_item->next; |
|
|
prev_item= new_item; |
|
|
} |
|
1331 |
break; |
break; |
1332 |
} |
} |
1333 |
|
|
1334 |
unprotect(old_value); unprotect(new_value); |
unprotect(old_value); |
1335 |
|
|
1336 |
return new_value; |
return new_value; |
1337 |
} |
} |
1339 |
/* "dup"; duplicates an item on the stack */ |
/* "dup"; duplicates an item on the stack */ |
1340 |
extern void sx_647570(environment *env) |
extern void sx_647570(environment *env) |
1341 |
{ |
{ |
1342 |
if((env->head)==NULL) { |
if(env->head->type==empty) { |
1343 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1344 |
env->err= 1; |
env->err= 1; |
1345 |
return; |
return; |
1346 |
} |
} |
1347 |
push_val(env, copy_val(env, env->head->item)); |
push_val(env, copy_val(env, CAR(env->head))); |
1348 |
} |
} |
1349 |
|
|
1350 |
/* "if", If-Then */ |
/* "if", If-Then */ |
1352 |
{ |
{ |
1353 |
int truth; |
int truth; |
1354 |
|
|
1355 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1356 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1357 |
env->err= 1; |
env->err= 1; |
1358 |
return; |
return; |
1359 |
} |
} |
1360 |
|
|
1361 |
if(env->head->next->item->type != integer) { |
if(CAR(CDR(env->head))->type != integer) { |
1362 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1363 |
env->err=2; |
env->err= 2; |
1364 |
return; |
return; |
1365 |
} |
} |
1366 |
|
|
1367 |
swap(env); |
swap(env); |
1368 |
if(env->err) return; |
if(env->err) return; |
1369 |
|
|
1370 |
truth=env->head->item->content.i; |
truth= CAR(env->head)->content.i; |
1371 |
|
|
1372 |
toss(env); |
toss(env); |
1373 |
if(env->err) return; |
if(env->err) return; |
1383 |
{ |
{ |
1384 |
int truth; |
int truth; |
1385 |
|
|
1386 |
if((env->head)==NULL || env->head->next==NULL |
if(env->head->type==empty || CDR(env->head)->type==empty |
1387 |
|| env->head->next->next==NULL) { |
|| CDR(CDR(env->head))->type==empty) { |
1388 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1389 |
env->err=1; |
env->err= 1; |
1390 |
return; |
return; |
1391 |
} |
} |
1392 |
|
|
1393 |
if(env->head->next->next->item->type != integer) { |
if(CAR(CDR(CDR(env->head)))->type!=integer) { |
1394 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1395 |
env->err=2; |
env->err= 2; |
1396 |
return; |
return; |
1397 |
} |
} |
1398 |
|
|
1399 |
rot(env); |
rot(env); |
1400 |
if(env->err) return; |
if(env->err) return; |
1401 |
|
|
1402 |
truth=env->head->item->content.i; |
truth= CAR(env->head)->content.i; |
1403 |
|
|
1404 |
toss(env); |
toss(env); |
1405 |
if(env->err) return; |
if(env->err) return; |
1414 |
eval(env); |
eval(env); |
1415 |
} |
} |
1416 |
|
|
1417 |
|
extern void sx_656c7365(environment *env) |
1418 |
|
{ |
1419 |
|
if(env->head->type==empty || CDR(env->head)->type==empty |
1420 |
|
|| CDR(CDR(env->head))->type==empty || CDR(CDR(CDR(env->head)))->type==empty |
1421 |
|
|| CDR(CDR(CDR(CDR(env->head))))->type==empty) { |
1422 |
|
printerr("Too Few Arguments"); |
1423 |
|
env->err= 1; |
1424 |
|
return; |
1425 |
|
} |
1426 |
|
|
1427 |
|
if(CAR(CDR(env->head))->type!=symb |
1428 |
|
|| strcmp(CAR(CDR(env->head))->content.sym->id, "then")!=0 |
1429 |
|
|| CAR(CDR(CDR(CDR(env->head))))->type!=symb |
1430 |
|
|| strcmp(CAR(CDR(CDR(CDR(env->head))))->content.sym->id, "if")!=0) { |
1431 |
|
printerr("Bad Argument Type"); |
1432 |
|
env->err= 2; |
1433 |
|
return; |
1434 |
|
} |
1435 |
|
|
1436 |
|
swap(env); toss(env); rot(env); toss(env); |
1437 |
|
ifelse(env); |
1438 |
|
} |
1439 |
|
|
1440 |
|
extern void then(environment *env) |
1441 |
|
{ |
1442 |
|
if(env->head->type==empty || CDR(env->head)->type==empty |
1443 |
|
|| CDR(CDR(env->head))->type==empty) { |
1444 |
|
printerr("Too Few Arguments"); |
1445 |
|
env->err= 1; |
1446 |
|
return; |
1447 |
|
} |
1448 |
|
|
1449 |
|
if(CAR(CDR(env->head))->type!=symb |
1450 |
|
|| strcmp(CAR(CDR(env->head))->content.sym->id, "if")!=0) { |
1451 |
|
printerr("Bad Argument Type"); |
1452 |
|
env->err= 2; |
1453 |
|
return; |
1454 |
|
} |
1455 |
|
|
1456 |
|
swap(env); toss(env); |
1457 |
|
sx_6966(env); |
1458 |
|
} |
1459 |
|
|
1460 |
/* "while" */ |
/* "while" */ |
1461 |
extern void sx_7768696c65(environment *env) |
extern void sx_7768696c65(environment *env) |
1462 |
{ |
{ |
1463 |
int truth; |
int truth; |
1464 |
value *loop, *test; |
value *loop, *test; |
1465 |
|
|
1466 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1467 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1468 |
env->err=1; |
env->err= 1; |
1469 |
return; |
return; |
1470 |
} |
} |
1471 |
|
|
1472 |
loop= env->head->item; |
loop= CAR(env->head); |
1473 |
protect(loop); |
protect(loop); |
1474 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1475 |
|
|
1476 |
test= env->head->item; |
test= CAR(env->head); |
1477 |
protect(test); |
protect(test); |
1478 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1479 |
|
|
1481 |
push_val(env, test); |
push_val(env, test); |
1482 |
eval(env); |
eval(env); |
1483 |
|
|
1484 |
if(env->head->item->type != integer) { |
if(CAR(env->head)->type != integer) { |
1485 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1486 |
env->err= 2; |
env->err= 2; |
1487 |
return; |
return; |
1488 |
} |
} |
1489 |
|
|
1490 |
truth= env->head->item->content.i; |
truth= CAR(env->head)->content.i; |
1491 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1492 |
|
|
1493 |
if(truth) { |
if(truth) { |
1509 |
value *loop; |
value *loop; |
1510 |
int foo1, foo2; |
int foo1, foo2; |
1511 |
|
|
1512 |
if(env->head==NULL || env->head->next==NULL |
if(env->head->type==empty || CDR(env->head)->type==empty |
1513 |
|| env->head->next->next==NULL) { |
|| CDR(CDR(env->head))->type==empty) { |
1514 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1515 |
env->err= 1; |
env->err= 1; |
1516 |
return; |
return; |
1517 |
} |
} |
1518 |
|
|
1519 |
if(env->head->next->item->type!=integer |
if(CAR(CDR(env->head))->type!=integer |
1520 |
|| env->head->next->next->item->type!=integer) { |
|| CAR(CDR(CDR(env->head)))->type!=integer) { |
1521 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1522 |
env->err= 2; |
env->err= 2; |
1523 |
return; |
return; |
1524 |
} |
} |
1525 |
|
|
1526 |
loop= env->head->item; |
loop= CAR(env->head); |
1527 |
protect(loop); |
protect(loop); |
1528 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1529 |
|
|
1530 |
foo2= env->head->item->content.i; |
foo2= CAR(env->head)->content.i; |
1531 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1532 |
|
|
1533 |
foo1= env->head->item->content.i; |
foo1= CAR(env->head)->content.i; |
1534 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1535 |
|
|
1536 |
if(foo1<=foo2) { |
if(foo1<=foo2) { |
1555 |
extern void foreach(environment *env) |
extern void foreach(environment *env) |
1556 |
{ |
{ |
1557 |
value *loop, *foo; |
value *loop, *foo; |
1558 |
stackitem *iterator; |
value *iterator; |
1559 |
|
|
1560 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1561 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1562 |
env->err= 1; |
env->err= 1; |
1563 |
return; |
return; |
1564 |
} |
} |
1565 |
|
|
1566 |
if(env->head->next->item->type != list) { |
if(CAR(CDR(env->head))->type!=tcons) { |
1567 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1568 |
env->err= 2; |
env->err= 2; |
1569 |
return; |
return; |
1570 |
} |
} |
1571 |
|
|
1572 |
loop= env->head->item; |
loop= CAR(env->head); |
1573 |
protect(loop); |
protect(loop); |
1574 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1575 |
|
|
1576 |
foo= env->head->item; |
foo= CAR(env->head); |
1577 |
protect(foo); |
protect(foo); |
1578 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1579 |
|
|
1580 |
iterator= foo->content.ptr; |
iterator= foo; |
1581 |
|
|
1582 |
while(iterator!=NULL) { |
while(iterator!=NULL) { |
1583 |
push_val(env, iterator->item); |
push_val(env, CAR(iterator)); |
1584 |
push_val(env, loop); |
push_val(env, loop); |
1585 |
eval(env); if(env->err) return; |
eval(env); if(env->err) return; |
1586 |
iterator= iterator->next; |
if (iterator->type == tcons){ |
1587 |
|
iterator= CDR(iterator); |
1588 |
|
} else { |
1589 |
|
printerr("Bad Argument Type"); /* Improper list */ |
1590 |
|
env->err= 2; |
1591 |
|
break; |
1592 |
|
} |
1593 |
} |
} |
1594 |
unprotect(loop); unprotect(foo); |
unprotect(loop); unprotect(foo); |
1595 |
} |
} |
1598 |
extern void to(environment *env) |
extern void to(environment *env) |
1599 |
{ |
{ |
1600 |
int ending, start, i; |
int ending, start, i; |
1601 |
stackitem *iterator, *temp; |
value *iterator, *temp; |
|
value *pack; |
|
1602 |
|
|
1603 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1604 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1605 |
env->err=1; |
env->err= 1; |
1606 |
return; |
return; |
1607 |
} |
} |
1608 |
|
|
1609 |
if(env->head->item->type!=integer |
if(CAR(env->head)->type!=integer |
1610 |
|| env->head->next->item->type!=integer) { |
|| CAR(CDR(env->head))->type!=integer) { |
1611 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1612 |
env->err=2; |
env->err= 2; |
1613 |
return; |
return; |
1614 |
} |
} |
1615 |
|
|
1616 |
ending= env->head->item->content.i; |
ending= CAR(env->head)->content.i; |
1617 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1618 |
start= env->head->item->content.i; |
start= CAR(env->head)->content.i; |
1619 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1620 |
|
|
1621 |
push_sym(env, "["); |
push_sym(env, "["); |
1629 |
} |
} |
1630 |
|
|
1631 |
iterator= env->head; |
iterator= env->head; |
|
pack= new_val(env); |
|
|
protect(pack); |
|
1632 |
|
|
1633 |
if(iterator==NULL |
if(iterator->type==empty |
1634 |
|| (iterator->item->type==symb |
|| (CAR(iterator)->type==symb |
1635 |
&& ((symbol*)(iterator->item->content.ptr))->id[0]=='[')) { |
&& CAR(iterator)->content.sym->id[0]=='[')) { |
1636 |
temp= NULL; |
temp= NULL; |
1637 |
toss(env); |
toss(env); |
1638 |
} else { |
} else { |
1639 |
/* Search for first delimiter */ |
/* Search for first delimiter */ |
1640 |
while(iterator->next!=NULL |
while(CDR(iterator)!=NULL |
1641 |
&& (iterator->next->item->type!=symb |
&& (CAR(CDR(iterator))->type!=symb |
1642 |
|| ((symbol*)(iterator->next->item->content.ptr))->id[0]!='[')) |
|| CAR(CDR(iterator))->content.sym->id[0]!='[')) |
1643 |
iterator= iterator->next; |
iterator= CDR(iterator); |
1644 |
|
|
1645 |
/* Extract list */ |
/* Extract list */ |
1646 |
temp= env->head; |
temp= env->head; |
1647 |
env->head= iterator->next; |
env->head= CDR(iterator); |
1648 |
iterator->next= NULL; |
CDR(iterator)= NULL; |
1649 |
|
|
|
pack->type= list; |
|
|
pack->content.ptr= temp; |
|
|
|
|
1650 |
if(env->head!=NULL) |
if(env->head!=NULL) |
1651 |
toss(env); |
toss(env); |
1652 |
} |
} |
1653 |
|
|
1654 |
/* Push list */ |
/* Push list */ |
1655 |
|
push_val(env, temp); |
|
push_val(env, pack); |
|
|
|
|
|
unprotect(pack); |
|
1656 |
} |
} |
1657 |
|
|
1658 |
/* Read a string */ |
/* Read a string */ |
1691 |
} |
} |
1692 |
readline(env); if(env->err) return; |
readline(env); if(env->err) return; |
1693 |
|
|
1694 |
if(((char *)(env->head->item->content.ptr))[0]=='\0'){ |
if(((char *)(CAR(env->head)->content.ptr))[0]=='\0'){ |
1695 |
env->err= 4; /* "" means EOF */ |
env->err= 4; /* "" means EOF */ |
1696 |
return; |
return; |
1697 |
} |
} |
1698 |
|
|
1699 |
env->in_string= malloc(strlen(env->head->item->content.ptr)+1); |
env->in_string= malloc(strlen(CAR(env->head)->content.ptr)+1); |
1700 |
env->free_string= env->in_string; /* Save the original pointer */ |
env->free_string= env->in_string; /* Save the original pointer */ |
1701 |
strcpy(env->in_string, env->head->item->content.ptr); |
strcpy(env->in_string, CAR(env->head)->content.ptr); |
1702 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1703 |
} |
} |
1704 |
|
|
1747 |
return sx_72656164(env); |
return sx_72656164(env); |
1748 |
} |
} |
1749 |
|
|
1750 |
|
#ifdef __linux__ |
1751 |
extern void beep(environment *env) |
extern void beep(environment *env) |
1752 |
{ |
{ |
1753 |
int freq, dur, period, ticks; |
int freq, dur, period, ticks; |
1754 |
|
|
1755 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1756 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1757 |
env->err=1; |
env->err= 1; |
1758 |
return; |
return; |
1759 |
} |
} |
1760 |
|
|
1761 |
if(env->head->item->type!=integer |
if(CAR(env->head)->type!=integer |
1762 |
|| env->head->next->item->type!=integer) { |
|| CAR(CDR(env->head))->type!=integer) { |
1763 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1764 |
env->err=2; |
env->err= 2; |
1765 |
return; |
return; |
1766 |
} |
} |
1767 |
|
|
1768 |
dur=env->head->item->content.i; |
dur= CAR(env->head)->content.i; |
1769 |
toss(env); |
toss(env); |
1770 |
freq=env->head->item->content.i; |
freq= CAR(env->head)->content.i; |
1771 |
toss(env); |
toss(env); |
1772 |
|
|
1773 |
period=1193180/freq; /* convert freq from Hz to period |
period= 1193180/freq; /* convert freq from Hz to period |
1774 |
length */ |
length */ |
1775 |
ticks=dur*.001193180; /* convert duration from µseconds to |
ticks= dur*.001193180; /* convert duration from µseconds to |
1776 |
timer ticks */ |
timer ticks */ |
1777 |
|
|
1778 |
/* ticks=dur/1000; */ |
/* ticks=dur/1000; */ |
1779 |
|
|
1780 |
/* if (ioctl(STDOUT_FILENO, KDMKTONE, (125<<16) + 0x637)==0) */ |
/* if (ioctl(STDOUT_FILENO, KDMKTONE, (125<<16) + 0x637)==0) */ |
1781 |
switch (ioctl(STDOUT_FILENO, KDMKTONE, (ticks<<16) | period)){ |
switch (ioctl(STDOUT_FILENO, KDMKTONE, (ticks<<16) | period)){ |
1782 |
case 0: |
case 0: |
1783 |
usleep(dur); |
usleep(dur); |
1784 |
return; |
return; |
1785 |
case -1: |
case -1: |
1786 |
perror("beep"); |
perror("beep"); |
1787 |
env->err=5; |
env->err= 5; |
1788 |
return; |
return; |
1789 |
default: |
default: |
1790 |
abort(); |
abort(); |
1791 |
} |
} |
1792 |
} |
} |
1793 |
|
#endif /* __linux__ */ |
1794 |
|
|
1795 |
/* "wait" */ |
/* "wait" */ |
1796 |
extern void sx_77616974(environment *env) |
extern void sx_77616974(environment *env) |
1797 |
{ |
{ |
1798 |
int dur; |
int dur; |
1799 |
|
|
1800 |
if((env->head)==NULL) { |
if(env->head->type==empty) { |
1801 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1802 |
env->err=1; |
env->err= 1; |
1803 |
return; |
return; |
1804 |
} |
} |
1805 |
|
|
1806 |
if(env->head->item->type!=integer) { |
if(CAR(env->head)->type!=integer) { |
1807 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1808 |
env->err=2; |
env->err= 2; |
1809 |
return; |
return; |
1810 |
} |
} |
1811 |
|
|
1812 |
dur=env->head->item->content.i; |
dur= CAR(env->head)->content.i; |
1813 |
toss(env); |
toss(env); |
1814 |
|
|
1815 |
usleep(dur); |
usleep(dur); |
1817 |
|
|
1818 |
extern void copying(environment *env) |
extern void copying(environment *env) |
1819 |
{ |
{ |
1820 |
printf("GNU GENERAL PUBLIC LICENSE\n\ |
printf(" GNU GENERAL PUBLIC LICENSE\n\ |
1821 |
Version 2, June 1991\n\ |
Version 2, June 1991\n\ |
1822 |
\n\ |
\n\ |
1823 |
Copyright (C) 1989, 1991 Free Software Foundation, Inc.\n\ |
Copyright (C) 1989, 1991 Free Software Foundation, Inc.\n\ |
2106 |
int a, b; |
int a, b; |
2107 |
float fa, fb; |
float fa, fb; |
2108 |
|
|
2109 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
2110 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
2111 |
env->err=1; |
env->err= 1; |
2112 |
return; |
return; |
2113 |
} |
} |
2114 |
|
|
2115 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
2116 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
2117 |
a=env->head->item->content.i; |
a= CAR(env->head)->content.i; |
2118 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2119 |
b=env->head->item->content.i; |
b= CAR(env->head)->content.i; |
2120 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2121 |
push_int(env, b*a); |
push_int(env, b*a); |
2122 |
|
|
2123 |
return; |
return; |
2124 |
} |
} |
2125 |
|
|
2126 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
2127 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
2128 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
2129 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2130 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
2131 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2132 |
push_float(env, fb*fa); |
push_float(env, fb*fa); |
2133 |
|
|
2134 |
return; |
return; |
2135 |
} |
} |
2136 |
|
|
2137 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
2138 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
2139 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
2140 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2141 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
2142 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2143 |
push_float(env, b*fa); |
push_float(env, b*fa); |
2144 |
|
|
2145 |
return; |
return; |
2146 |
} |
} |
2147 |
|
|
2148 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
2149 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
2150 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
2151 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2152 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
2153 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2154 |
push_float(env, fb*a); |
push_float(env, fb*a); |
2155 |
|
|
2157 |
} |
} |
2158 |
|
|
2159 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
2160 |
env->err=2; |
env->err= 2; |
2161 |
} |
} |
2162 |
|
|
2163 |
/* "/" */ |
/* "/" */ |
2166 |
int a, b; |
int a, b; |
2167 |
float fa, fb; |
float fa, fb; |
2168 |
|
|
2169 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
2170 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
2171 |
env->err=1; |
env->err= 1; |
2172 |
return; |
return; |
2173 |
} |
} |
2174 |
|
|
2175 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
2176 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
2177 |
a=env->head->item->content.i; |
a= CAR(env->head)->content.i; |
2178 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2179 |
b=env->head->item->content.i; |
b= CAR(env->head)->content.i; |
2180 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2181 |
push_float(env, b/a); |
push_float(env, b/a); |
2182 |
|
|
2183 |
return; |
return; |
2184 |
} |
} |
2185 |
|
|
2186 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
2187 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
2188 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
2189 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2190 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
2191 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2192 |
push_float(env, fb/fa); |
push_float(env, fb/fa); |
2193 |
|
|
2194 |
return; |
return; |
2195 |
} |
} |
2196 |
|
|
2197 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
2198 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
2199 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
2200 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2201 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
2202 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2203 |
push_float(env, b/fa); |
push_float(env, b/fa); |
2204 |
|
|
2205 |
return; |
return; |
2206 |
} |
} |
2207 |
|
|
2208 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
2209 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
2210 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
2211 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2212 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
2213 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2214 |
push_float(env, fb/a); |
push_float(env, fb/a); |
2215 |
|
|
2217 |
} |
} |
2218 |
|
|
2219 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
2220 |
env->err=2; |
env->err= 2; |
2221 |
} |
} |
2222 |
|
|
2223 |
/* "mod" */ |
/* "mod" */ |
2225 |
{ |
{ |
2226 |
int a, b; |
int a, b; |
2227 |
|
|
2228 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
2229 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
2230 |
env->err= 1; |
env->err= 1; |
2231 |
return; |
return; |
2232 |
} |
} |
2233 |
|
|
2234 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
2235 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
2236 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
2237 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2238 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
2239 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2240 |
push_int(env, b%a); |
push_int(env, b%a); |
2241 |
|
|
2243 |
} |
} |
2244 |
|
|
2245 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
2246 |
env->err=2; |
env->err= 2; |
2247 |
} |
} |
2248 |
|
|
2249 |
/* "div" */ |
/* "div" */ |
2251 |
{ |
{ |
2252 |
int a, b; |
int a, b; |
2253 |
|
|
2254 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
2255 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
2256 |
env->err= 1; |
env->err= 1; |
2257 |
return; |
return; |
2258 |
} |
} |
2259 |
|
|
2260 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
2261 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
2262 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
2263 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2264 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
2265 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2266 |
push_int(env, (int)b/a); |
push_int(env, (int)b/a); |
2267 |
|
|