1 |
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/* -*- coding: utf-8; -*- */ |
2 |
/* |
/* |
3 |
stack - an interactive interpreter for a stack-based language |
stack - an interactive interpreter for a stack-based language |
4 |
Copyright (C) 2002 Mats Alritzson and Teddy Hogeborn |
Copyright (C) 2002 Mats Alritzson and Teddy Hogeborn |
21 |
Teddy Hogeborn <teddy@fukt.bth.se> |
Teddy Hogeborn <teddy@fukt.bth.se> |
22 |
*/ |
*/ |
23 |
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24 |
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#define CAR(X) (X->content.c->car) |
25 |
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#define CDR(X) (X->content.c->cdr) |
26 |
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|
27 |
/* printf, sscanf, fgets, fprintf, fopen, perror */ |
/* printf, sscanf, fgets, fprintf, fopen, perror */ |
28 |
#include <stdio.h> |
#include <stdio.h> |
29 |
/* exit, EXIT_SUCCESS, malloc, free */ |
/* exit, EXIT_SUCCESS, malloc, free */ |
38 |
#include <unistd.h> |
#include <unistd.h> |
39 |
/* EX_NOINPUT, EX_USAGE */ |
/* EX_NOINPUT, EX_USAGE */ |
40 |
#include <sysexits.h> |
#include <sysexits.h> |
41 |
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/* assert */ |
42 |
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#include <assert.h> |
43 |
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44 |
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#ifdef __linux__ |
45 |
/* mtrace, muntrace */ |
/* mtrace, muntrace */ |
46 |
#include <mcheck.h> |
#include <mcheck.h> |
47 |
/* ioctl */ |
/* ioctl */ |
48 |
#include <sys/ioctl.h> |
#include <sys/ioctl.h> |
49 |
/* KDMKTONE */ |
/* KDMKTONE */ |
50 |
#include <linux/kd.h> |
#include <linux/kd.h> |
51 |
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#endif /* __linux__ */ |
52 |
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|
53 |
#include "stack.h" |
#include "stack.h" |
54 |
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|
61 |
env->gc_count= 0; |
env->gc_count= 0; |
62 |
env->gc_ref= NULL; |
env->gc_ref= NULL; |
63 |
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|
64 |
env->head= NULL; |
env->head= new_val(env); |
65 |
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env->head->type= empty; |
66 |
for(i= 0; i<HASHTBLSIZE; i++) |
for(i= 0; i<HASHTBLSIZE; i++) |
67 |
env->symbols[i]= NULL; |
env->symbols[i]= NULL; |
68 |
env->err= 0; |
env->err= 0; |
80 |
/* Discard the top element of the stack. */ |
/* Discard the top element of the stack. */ |
81 |
extern void toss(environment *env) |
extern void toss(environment *env) |
82 |
{ |
{ |
83 |
stackitem *temp= env->head; |
if(env->head->type==empty) { |
|
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|
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if((env->head)==NULL) { |
|
84 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
85 |
env->err= 1; |
env->err= 1; |
86 |
return; |
return; |
87 |
} |
} |
88 |
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|
89 |
env->head= env->head->next; /* Remove the top stack item */ |
env->head= CDR(env->head); /* Remove the top stack item */ |
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free(temp); /* Free the old top stack item */ |
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90 |
} |
} |
91 |
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|
92 |
/* 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. */ |
125 |
stackitem *nitem= malloc(sizeof(stackitem)); |
stackitem *nitem= malloc(sizeof(stackitem)); |
126 |
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|
127 |
nval->content.ptr= NULL; |
nval->content.ptr= NULL; |
128 |
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nval->type= integer; |
129 |
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|
130 |
nitem->item= nval; |
nitem->item= nval; |
131 |
nitem->next= env->gc_ref; |
nitem->next= env->gc_ref; |
132 |
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|
133 |
env->gc_ref= nitem; |
env->gc_ref= nitem; |
134 |
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|
135 |
env->gc_count += sizeof(value); |
env->gc_count += sizeof(value); |
143 |
Marked values are not collected by the GC. */ |
Marked values are not collected by the GC. */ |
144 |
inline void gc_mark(value *val) |
inline void gc_mark(value *val) |
145 |
{ |
{ |
146 |
stackitem *iterator; |
if(val==NULL || val->gc.flag.mark) |
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if(val->gc.flag.mark) |
|
147 |
return; |
return; |
148 |
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149 |
val->gc.flag.mark= 1; |
val->gc.flag.mark= 1; |
150 |
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|
151 |
if(val->type==list) { |
if(val->type==tcons) { |
152 |
iterator= val->content.ptr; |
gc_mark(CAR(val)); |
153 |
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gc_mark(CDR(val)); |
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while(iterator!=NULL) { |
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gc_mark(iterator->item); |
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iterator= iterator->next; |
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} |
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154 |
} |
} |
155 |
} |
} |
156 |
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|
165 |
/* Start GC */ |
/* Start GC */ |
166 |
extern void gc_init(environment *env) |
extern void gc_init(environment *env) |
167 |
{ |
{ |
168 |
stackitem *new_head= NULL, *titem, *iterator; |
stackitem *new_head= NULL, *titem; |
169 |
symbol *tsymb; |
symbol *tsymb; |
170 |
int i; |
int i; |
171 |
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|
172 |
if(env->interactive){ |
if(env->interactive) |
173 |
printf("Garbage collecting."); |
printf("Garbage collecting."); |
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} |
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174 |
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175 |
/* Mark values on stack */ |
/* Mark values on stack */ |
176 |
iterator= env->head; |
gc_mark(env->head); |
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while(iterator!=NULL) { |
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gc_mark(iterator->item); |
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iterator= iterator->next; |
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} |
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177 |
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178 |
if(env->interactive){ |
if(env->interactive) |
179 |
printf("."); |
printf("."); |
180 |
} |
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181 |
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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) |
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while(tsymb!=NULL) { |
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185 |
if (tsymb->val != NULL) |
if (tsymb->val != NULL) |
186 |
gc_mark(tsymb->val); |
gc_mark(tsymb->val); |
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tsymb= tsymb->next; |
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} |
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} |
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187 |
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188 |
if(env->interactive){ |
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189 |
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if(env->interactive) |
190 |
printf("."); |
printf("."); |
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} |
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191 |
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192 |
env->gc_count= 0; |
env->gc_count= 0; |
193 |
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195 |
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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 |
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198 |
switch(env->gc_ref->item->type) { /* Remove content */ |
/* Remove content */ |
199 |
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switch(env->gc_ref->item->type){ |
200 |
case string: |
case string: |
201 |
free(env->gc_ref->item->content.ptr); |
free(env->gc_ref->item->content.ptr); |
202 |
break; |
break; |
203 |
case list: |
case tcons: |
204 |
while(env->gc_ref->item->content.ptr!=NULL) { |
free(env->gc_ref->item->content.c); |
205 |
titem= env->gc_ref->item->content.ptr; |
break; |
206 |
env->gc_ref->item->content.ptr= titem->next; |
case empty: |
207 |
free(titem); |
case integer: |
208 |
} |
case tfloat: |
209 |
default: |
case func: |
210 |
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case symb: |
211 |
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/* Symbol strings are freed when walking the hash table */ |
212 |
} |
} |
213 |
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|
214 |
free(env->gc_ref->item); /* Remove from gc_ref */ |
free(env->gc_ref->item); /* Remove from gc_ref */ |
215 |
titem= env->gc_ref->next; |
titem= env->gc_ref->next; |
216 |
free(env->gc_ref); /* Remove value */ |
free(env->gc_ref); /* Remove value */ |
217 |
env->gc_ref= titem; |
env->gc_ref= titem; |
218 |
continue; |
continue; |
|
} else { |
|
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env->gc_count += sizeof(value); |
|
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if(env->gc_ref->item->type == string) |
|
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env->gc_count += strlen(env->gc_ref->item->content.ptr); |
|
219 |
} |
} |
220 |
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#ifdef DEBUG |
221 |
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printf("Kept value (%p)", env->gc_ref->item); |
222 |
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if(env->gc_ref->item->gc.flag.mark) |
223 |
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printf(" (marked)"); |
224 |
|
if(env->gc_ref->item->gc.flag.protect) |
225 |
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printf(" (protected)"); |
226 |
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switch(env->gc_ref->item->type){ |
227 |
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case integer: |
228 |
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printf(" integer: %d", env->gc_ref->item->content.i); |
229 |
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break; |
230 |
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case func: |
231 |
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printf(" func: %p", env->gc_ref->item->content.ptr); |
232 |
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break; |
233 |
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case symb: |
234 |
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printf(" symb: %s", env->gc_ref->item->content.sym->id); |
235 |
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break; |
236 |
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case tcons: |
237 |
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printf(" tcons: %p\t%p", env->gc_ref->item->content.c->car, |
238 |
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env->gc_ref->item->content.c->cdr); |
239 |
|
break; |
240 |
|
default: |
241 |
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printf(" <unknown %d>", (env->gc_ref->item->type)); |
242 |
|
} |
243 |
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printf("\n"); |
244 |
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#endif /* DEBUG */ |
245 |
|
|
246 |
|
/* Keep values */ |
247 |
|
env->gc_count += sizeof(value); |
248 |
|
if(env->gc_ref->item->type==string) |
249 |
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env->gc_count += strlen(env->gc_ref->item->content.ptr)+1; |
250 |
|
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/* Keep values */ |
|
251 |
titem= env->gc_ref->next; |
titem= env->gc_ref->next; |
252 |
env->gc_ref->next= new_head; |
env->gc_ref->next= new_head; |
253 |
new_head= env->gc_ref; |
new_head= env->gc_ref; |
260 |
|
|
261 |
env->gc_ref= new_head; |
env->gc_ref= new_head; |
262 |
|
|
263 |
if(env->interactive){ |
if(env->interactive) |
264 |
printf("done\n"); |
printf("done (%d bytes still allocated)\n", env->gc_count); |
|
} |
|
265 |
|
|
266 |
} |
} |
267 |
|
|
268 |
/* Protect values from GC */ |
/* Protect values from GC */ |
269 |
void protect(value *val) |
void protect(value *val) |
270 |
{ |
{ |
271 |
stackitem *iterator; |
if(val==NULL || val->gc.flag.protect) |
|
|
|
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if(val->gc.flag.protect) |
|
272 |
return; |
return; |
273 |
|
|
274 |
val->gc.flag.protect= 1; |
val->gc.flag.protect= 1; |
275 |
|
|
276 |
if(val->type==list) { |
if(val->type==tcons) { |
277 |
iterator= val->content.ptr; |
protect(CAR(val)); |
278 |
|
protect(CDR(val)); |
|
while(iterator!=NULL) { |
|
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protect(iterator->item); |
|
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iterator= iterator->next; |
|
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} |
|
279 |
} |
} |
280 |
} |
} |
281 |
|
|
282 |
/* Unprotect values from GC */ |
/* Unprotect values from GC */ |
283 |
void unprotect(value *val) |
void unprotect(value *val) |
284 |
{ |
{ |
285 |
stackitem *iterator; |
if(val==NULL || !(val->gc.flag.protect)) |
|
|
|
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if(!(val->gc.flag.protect)) |
|
286 |
return; |
return; |
287 |
|
|
288 |
val->gc.flag.protect= 0; |
val->gc.flag.protect= 0; |
289 |
|
|
290 |
if(val->type==list) { |
if(val->type==tcons) { |
291 |
iterator= val->content.ptr; |
unprotect(CAR(val)); |
292 |
|
unprotect(CDR(val)); |
|
while(iterator!=NULL) { |
|
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unprotect(iterator->item); |
|
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iterator= iterator->next; |
|
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} |
|
293 |
} |
} |
294 |
} |
} |
295 |
|
|
296 |
/* Push a value onto the stack */ |
/* Push a value onto the stack */ |
297 |
void push_val(environment *env, value *val) |
void push_val(environment *env, value *val) |
298 |
{ |
{ |
299 |
stackitem *new_item= malloc(sizeof(stackitem)); |
value *new_value= new_val(env); |
300 |
new_item->item= val; |
|
301 |
new_item->next= env->head; |
new_value->content.c= malloc(sizeof(pair)); |
302 |
env->head= new_item; |
assert(new_value->content.c!=NULL); |
303 |
|
env->gc_count += sizeof(pair); |
304 |
|
new_value->type= tcons; |
305 |
|
CAR(new_value)= val; |
306 |
|
CDR(new_value)= env->head; |
307 |
|
env->head= new_value; |
308 |
} |
} |
309 |
|
|
310 |
/* Push an integer onto the stack */ |
/* Push an integer onto the stack */ |
367 |
{ |
{ |
368 |
char *new_string; |
char *new_string; |
369 |
|
|
370 |
if((env->head)==NULL) { |
if(env->head->type==empty) { |
371 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
372 |
env->err= 1; |
env->err= 1; |
373 |
return; |
return; |
374 |
} |
} |
375 |
|
|
376 |
if(env->head->item->type!=string) { |
if(CAR(env->head)->type!=string) { |
377 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
378 |
env->err= 2; |
env->err= 2; |
379 |
return; |
return; |
380 |
} |
} |
381 |
|
|
382 |
new_string= mangle_str((const char *)(env->head->item->content.ptr)); |
new_string= |
383 |
|
mangle_str((const char *)(CAR(env->head)->content.ptr)); |
384 |
|
|
385 |
toss(env); |
toss(env); |
386 |
if(env->err) return; |
if(env->err) return; |
464 |
/* Gets the type of a value */ |
/* Gets the type of a value */ |
465 |
extern void type(environment *env) |
extern void type(environment *env) |
466 |
{ |
{ |
467 |
int typenum; |
if(env->head->type==empty) { |
|
|
|
|
if((env->head)==NULL) { |
|
468 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
469 |
env->err=1; |
env->err= 1; |
470 |
return; |
return; |
471 |
} |
} |
472 |
typenum=env->head->item->type; |
|
473 |
toss(env); |
switch(CAR(env->head)->type){ |
474 |
switch(typenum){ |
case empty: |
475 |
|
push_sym(env, "empty"); |
476 |
|
break; |
477 |
case integer: |
case integer: |
478 |
push_sym(env, "integer"); |
push_sym(env, "integer"); |
479 |
break; |
break; |
489 |
case func: |
case func: |
490 |
push_sym(env, "function"); |
push_sym(env, "function"); |
491 |
break; |
break; |
492 |
case list: |
case tcons: |
493 |
push_sym(env, "list"); |
push_sym(env, "pair"); |
494 |
break; |
break; |
495 |
} |
} |
496 |
|
swap(env); |
497 |
|
if (env->err) return; |
498 |
|
toss(env); |
499 |
} |
} |
500 |
|
|
501 |
/* Prints the top element of the stack. */ |
/* Print a value */ |
502 |
void print_h(stackitem *stack_head, int noquote) |
void print_val(value *val, int noquote) |
503 |
{ |
{ |
504 |
switch(stack_head->item->type) { |
switch(val->type) { |
505 |
|
case empty: |
506 |
|
printf("[]"); |
507 |
|
break; |
508 |
case integer: |
case integer: |
509 |
printf("%d", stack_head->item->content.i); |
printf("%d", val->content.i); |
510 |
break; |
break; |
511 |
case tfloat: |
case tfloat: |
512 |
printf("%f", stack_head->item->content.f); |
printf("%f", val->content.f); |
513 |
break; |
break; |
514 |
case string: |
case string: |
515 |
if(noquote) |
if(noquote) |
516 |
printf("%s", (char*)stack_head->item->content.ptr); |
printf("%s", (char*)(val->content.ptr)); |
517 |
else |
else |
518 |
printf("\"%s\"", (char*)stack_head->item->content.ptr); |
printf("\"%s\"", (char*)(val->content.ptr)); |
519 |
break; |
break; |
520 |
case symb: |
case symb: |
521 |
printf("%s", ((symbol *)(stack_head->item->content.ptr))->id); |
printf("%s", val->content.sym->id); |
522 |
break; |
break; |
523 |
case func: |
case func: |
524 |
printf("#<function %p>", (funcp)(stack_head->item->content.ptr)); |
printf("#<function %p>", (funcp)(val->content.ptr)); |
525 |
break; |
break; |
526 |
case list: |
case tcons: |
|
/* A list is just a stack, so make stack_head point to it */ |
|
|
stack_head=(stackitem *)(stack_head->item->content.ptr); |
|
527 |
printf("[ "); |
printf("[ "); |
528 |
while(stack_head != NULL) { |
do { |
529 |
print_h(stack_head, noquote); |
print_val(CAR(val), noquote); |
530 |
printf(" "); |
val= CDR(val); |
531 |
stack_head=stack_head->next; |
switch(val->type){ |
532 |
} |
case empty: |
533 |
printf("]"); |
break; |
534 |
|
case tcons: |
535 |
|
printf(" "); |
536 |
|
break; |
537 |
|
default: |
538 |
|
printf(" . "); /* Improper list */ |
539 |
|
print_val(val, noquote); |
540 |
|
} |
541 |
|
} while(val->type == tcons); |
542 |
|
printf(" ]"); |
543 |
break; |
break; |
544 |
} |
} |
545 |
} |
} |
546 |
|
|
547 |
extern void print_(environment *env) |
extern void print_(environment *env) |
548 |
{ |
{ |
549 |
if(env->head==NULL) { |
if(env->head->type==empty) { |
550 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
551 |
env->err=1; |
env->err= 1; |
552 |
return; |
return; |
553 |
} |
} |
554 |
print_h(env->head, 0); |
print_val(CAR(env->head), 0); |
555 |
nl(); |
nl(); |
556 |
} |
} |
557 |
|
|
565 |
|
|
566 |
extern void princ_(environment *env) |
extern void princ_(environment *env) |
567 |
{ |
{ |
568 |
if(env->head==NULL) { |
if(env->head->type==empty) { |
569 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
570 |
env->err=1; |
env->err= 1; |
571 |
return; |
return; |
572 |
} |
} |
573 |
print_h(env->head, 1); |
print_val(CAR(env->head), 1); |
574 |
} |
} |
575 |
|
|
576 |
/* Prints the top element of the stack and then discards it. */ |
/* Prints the top element of the stack and then discards it. */ |
582 |
} |
} |
583 |
|
|
584 |
/* Only to be called by function printstack. */ |
/* Only to be called by function printstack. */ |
585 |
void print_st(stackitem *stack_head, long counter) |
void print_st(value *stack_head, long counter) |
586 |
{ |
{ |
587 |
if(stack_head->next != NULL) |
if(CDR(stack_head)->type != empty) |
588 |
print_st(stack_head->next, counter+1); |
print_st(CDR(stack_head), counter+1); |
589 |
printf("%ld: ", counter); |
printf("%ld: ", counter); |
590 |
print_h(stack_head, 0); |
print_val(CAR(stack_head), 0); |
591 |
nl(); |
nl(); |
592 |
} |
} |
593 |
|
|
594 |
/* Prints the stack. */ |
/* Prints the stack. */ |
595 |
extern void printstack(environment *env) |
extern void printstack(environment *env) |
596 |
{ |
{ |
597 |
if(env->head == NULL) { |
if(env->head->type == empty) { |
598 |
printf("Stack Empty\n"); |
printf("Stack Empty\n"); |
599 |
return; |
return; |
600 |
} |
} |
605 |
/* Swap the two top elements on the stack. */ |
/* Swap the two top elements on the stack. */ |
606 |
extern void swap(environment *env) |
extern void swap(environment *env) |
607 |
{ |
{ |
608 |
stackitem *temp= env->head; |
value *temp= env->head; |
609 |
|
|
610 |
if(env->head==NULL || env->head->next==NULL) { |
if(env->head->type == empty || CDR(env->head)->type == empty) { |
611 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
612 |
env->err=1; |
env->err=1; |
613 |
return; |
return; |
614 |
} |
} |
615 |
|
|
616 |
env->head= env->head->next; |
env->head= CDR(env->head); |
617 |
temp->next= env->head->next; |
CDR(temp)= CDR(env->head); |
618 |
env->head->next= temp; |
CDR(env->head)= temp; |
619 |
} |
} |
620 |
|
|
621 |
/* Rotate the first three elements on the stack. */ |
/* Rotate the first three elements on the stack. */ |
622 |
extern void rot(environment *env) |
extern void rot(environment *env) |
623 |
{ |
{ |
624 |
stackitem *temp= env->head; |
value *temp= env->head; |
625 |
|
|
626 |
if(env->head==NULL || env->head->next==NULL |
if(env->head->type == empty || CDR(env->head)->type == empty |
627 |
|| env->head->next->next==NULL) { |
|| CDR(CDR(env->head))->type == empty) { |
628 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
629 |
env->err=1; |
env->err= 1; |
630 |
return; |
return; |
631 |
} |
} |
632 |
|
|
633 |
env->head= env->head->next->next; |
env->head= CDR(CDR(env->head)); |
634 |
temp->next->next= env->head->next; |
CDR(CDR(temp))= CDR(env->head); |
635 |
env->head->next= temp; |
CDR(env->head)= temp; |
636 |
} |
} |
637 |
|
|
638 |
/* Recall a value from a symbol, if bound */ |
/* Recall a value from a symbol, if bound */ |
640 |
{ |
{ |
641 |
value *val; |
value *val; |
642 |
|
|
643 |
if(env->head == NULL) { |
if(env->head->type==empty) { |
644 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
645 |
env->err=1; |
env->err= 1; |
646 |
return; |
return; |
647 |
} |
} |
648 |
|
|
649 |
if(env->head->item->type!=symb) { |
if(CAR(env->head)->type!=symb) { |
650 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
651 |
env->err=2; |
env->err= 2; |
652 |
return; |
return; |
653 |
} |
} |
654 |
|
|
655 |
val=((symbol *)(env->head->item->content.ptr))->val; |
val= CAR(env->head)->content.sym->val; |
656 |
if(val == NULL){ |
if(val == NULL){ |
657 |
printerr("Unbound Variable"); |
printerr("Unbound Variable"); |
658 |
env->err=3; |
env->err= 3; |
659 |
return; |
return; |
660 |
} |
} |
661 |
protect(val); |
push_val(env, val); /* Return the symbol's bound value */ |
662 |
toss(env); /* toss the symbol */ |
swap(env); |
663 |
|
if(env->err) return; |
664 |
|
toss(env); /* toss the symbol */ |
665 |
if(env->err) return; |
if(env->err) return; |
|
push_val(env, val); /* Return its bound value */ |
|
|
unprotect(val); |
|
666 |
} |
} |
667 |
|
|
668 |
/* 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 |
672 |
{ |
{ |
673 |
funcp in_func; |
funcp in_func; |
674 |
value* temp_val; |
value* temp_val; |
675 |
stackitem* iterator; |
value* iterator; |
676 |
|
|
677 |
eval_start: |
eval_start: |
678 |
|
|
679 |
gc_maybe(env); |
gc_maybe(env); |
680 |
|
|
681 |
if(env->head==NULL) { |
if(env->head->type==empty) { |
682 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
683 |
env->err=1; |
env->err= 1; |
684 |
return; |
return; |
685 |
} |
} |
686 |
|
|
687 |
switch(env->head->item->type) { |
switch(CAR(env->head)->type) { |
688 |
/* if it's a symbol */ |
/* if it's a symbol */ |
689 |
case symb: |
case symb: |
690 |
rcl(env); /* get its contents */ |
rcl(env); /* get its contents */ |
691 |
if(env->err) return; |
if(env->err) return; |
692 |
if(env->head->item->type!=symb){ /* don't recurse symbols */ |
if(CAR(env->head)->type!=symb){ /* don't recurse symbols */ |
693 |
goto eval_start; |
goto eval_start; |
694 |
} |
} |
695 |
return; |
return; |
696 |
|
|
697 |
/* If it's a lone function value, run it */ |
/* If it's a lone function value, run it */ |
698 |
case func: |
case func: |
699 |
in_func= (funcp)(env->head->item->content.ptr); |
in_func= (funcp)(CAR(env->head)->content.ptr); |
700 |
toss(env); |
toss(env); |
701 |
if(env->err) return; |
if(env->err) return; |
702 |
return in_func(env); |
return in_func(env); |
703 |
|
|
704 |
/* If it's a list */ |
/* If it's a list */ |
705 |
case list: |
case tcons: |
706 |
temp_val= env->head->item; |
temp_val= CAR(env->head); |
707 |
protect(temp_val); |
protect(temp_val); |
708 |
|
|
709 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
710 |
iterator= (stackitem*)temp_val->content.ptr; |
iterator= temp_val; |
711 |
|
|
712 |
while(iterator!=NULL) { |
while(iterator->type != empty) { |
713 |
push_val(env, iterator->item); |
push_val(env, CAR(iterator)); |
714 |
|
|
715 |
if(env->head->item->type==symb |
if(CAR(env->head)->type==symb |
716 |
&& (((symbol*)(env->head->item->content.ptr))->id[0] == ';')) { |
&& CAR(env->head)->content.sym->id[0]==';') { |
717 |
toss(env); |
toss(env); |
718 |
if(env->err) return; |
if(env->err) return; |
719 |
|
|
720 |
if(iterator->next == NULL){ |
if(CDR(iterator)->type == empty){ |
721 |
goto eval_start; |
goto eval_start; |
722 |
} |
} |
723 |
eval(env); |
eval(env); |
724 |
if(env->err) return; |
if(env->err) return; |
725 |
} |
} |
726 |
iterator= iterator->next; |
if (CDR(iterator)->type == empty || CDR(iterator)->type == tcons) |
727 |
|
iterator= CDR(iterator); |
728 |
|
else { |
729 |
|
printerr("Bad Argument Type"); /* Improper list */ |
730 |
|
env->err= 2; |
731 |
|
return; |
732 |
|
} |
733 |
} |
} |
734 |
unprotect(temp_val); |
unprotect(temp_val); |
735 |
return; |
return; |
736 |
|
|
737 |
default: |
case empty: |
738 |
|
case integer: |
739 |
|
case tfloat: |
740 |
|
case string: |
741 |
return; |
return; |
742 |
} |
} |
743 |
} |
} |
745 |
/* Reverse (flip) a list */ |
/* Reverse (flip) a list */ |
746 |
extern void rev(environment *env) |
extern void rev(environment *env) |
747 |
{ |
{ |
748 |
stackitem *old_head, *new_head, *item; |
value *old_head, *new_head, *item; |
749 |
|
|
750 |
if((env->head)==NULL) { |
if(env->head->type==empty) { |
751 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
752 |
env->err= 1; |
env->err= 1; |
753 |
return; |
return; |
754 |
} |
} |
755 |
|
|
756 |
if(env->head->item->type!=list) { |
if(CAR(env->head)->type==empty) |
757 |
|
return; /* Don't reverse an empty list */ |
758 |
|
|
759 |
|
if(CAR(env->head)->type!=tcons) { |
760 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
761 |
env->err= 2; |
env->err= 2; |
762 |
return; |
return; |
763 |
} |
} |
764 |
|
|
765 |
old_head= (stackitem *)(env->head->item->content.ptr); |
old_head= CAR(env->head); |
766 |
new_head= NULL; |
new_head= new_val(env); |
767 |
while(old_head != NULL){ |
new_head->type= empty; |
768 |
|
while(old_head->type != empty) { |
769 |
item= old_head; |
item= old_head; |
770 |
old_head= old_head->next; |
old_head= CDR(old_head); |
771 |
item->next= new_head; |
CDR(item)= new_head; |
772 |
new_head= item; |
new_head= item; |
773 |
} |
} |
774 |
env->head->item->content.ptr= new_head; |
CAR(env->head)= new_head; |
775 |
} |
} |
776 |
|
|
777 |
/* Make a list. */ |
/* Make a list. */ |
778 |
extern void pack(environment *env) |
extern void pack(environment *env) |
779 |
{ |
{ |
780 |
stackitem *iterator, *temp; |
value *iterator, *temp, *ending; |
|
value *pack; |
|
781 |
|
|
782 |
iterator= env->head; |
ending=new_val(env); |
783 |
pack= new_val(env); |
ending->type=empty; |
|
protect(pack); |
|
784 |
|
|
785 |
if(iterator==NULL |
iterator= env->head; |
786 |
|| (iterator->item->type==symb |
if(iterator->type == empty |
787 |
&& ((symbol*)(iterator->item->content.ptr))->id[0]=='[')) { |
|| (CAR(iterator)->type==symb |
788 |
temp= NULL; |
&& CAR(iterator)->content.sym->id[0]=='[')) { |
789 |
|
temp= ending; |
790 |
toss(env); |
toss(env); |
791 |
} else { |
} else { |
792 |
/* Search for first delimiter */ |
/* Search for first delimiter */ |
793 |
while(iterator->next!=NULL |
while(CDR(iterator)->type != empty |
794 |
&& (iterator->next->item->type!=symb |
&& (CAR(CDR(iterator))->type!=symb |
795 |
|| ((symbol*)(iterator->next->item->content.ptr))->id[0]!='[')) |
|| CAR(CDR(iterator))->content.sym->id[0]!='[')) |
796 |
iterator= iterator->next; |
iterator= CDR(iterator); |
797 |
|
|
798 |
/* Extract list */ |
/* Extract list */ |
799 |
temp= env->head; |
temp= env->head; |
800 |
env->head= iterator->next; |
env->head= CDR(iterator); |
801 |
iterator->next= NULL; |
CDR(iterator)= ending; |
802 |
|
|
803 |
pack->type= list; |
if(env->head->type != empty) |
|
pack->content.ptr= temp; |
|
|
|
|
|
if(env->head!=NULL) |
|
804 |
toss(env); |
toss(env); |
805 |
} |
} |
806 |
|
|
807 |
/* Push list */ |
/* Push list */ |
808 |
|
|
809 |
push_val(env, pack); |
push_val(env, temp); |
810 |
rev(env); |
rev(env); |
|
|
|
|
unprotect(pack); |
|
811 |
} |
} |
812 |
|
|
813 |
/* Relocate elements of the list on the stack. */ |
/* Relocate elements of the list on the stack. */ |
814 |
extern void expand(environment *env) |
extern void expand(environment *env) |
815 |
{ |
{ |
816 |
stackitem *temp, *new_head; |
value *temp, *new_head; |
817 |
|
|
818 |
/* Is top element a list? */ |
/* Is top element a list? */ |
819 |
if(env->head==NULL) { |
if(env->head->type==empty) { |
820 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
821 |
env->err= 1; |
env->err= 1; |
822 |
return; |
return; |
823 |
} |
} |
824 |
if(env->head->item->type!=list) { |
|
825 |
|
if(CAR(env->head)->type!=tcons) { |
826 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
827 |
env->err= 2; |
env->err= 2; |
828 |
return; |
return; |
834 |
return; |
return; |
835 |
|
|
836 |
/* The first list element is the new stack head */ |
/* The first list element is the new stack head */ |
837 |
new_head= temp= env->head->item->content.ptr; |
new_head= temp= CAR(env->head); |
838 |
|
|
839 |
toss(env); |
toss(env); |
840 |
|
|
841 |
/* Find the end of the list */ |
/* Find the end of the list */ |
842 |
while(temp->next!=NULL) |
while(CDR(temp)->type != empty) { |
843 |
temp= temp->next; |
if (CDR(temp)->type == tcons) |
844 |
|
temp= CDR(temp); |
845 |
|
else { |
846 |
|
printerr("Bad Argument Type"); /* Improper list */ |
847 |
|
env->err= 2; |
848 |
|
return; |
849 |
|
} |
850 |
|
} |
851 |
|
|
852 |
/* Connect the tail of the list with the old stack head */ |
/* Connect the tail of the list with the old stack head */ |
853 |
temp->next= env->head; |
CDR(temp)= env->head; |
854 |
env->head= new_head; /* ...and voila! */ |
env->head= new_head; /* ...and voila! */ |
855 |
|
|
856 |
} |
} |
859 |
extern void eq(environment *env) |
extern void eq(environment *env) |
860 |
{ |
{ |
861 |
void *left, *right; |
void *left, *right; |
|
int result; |
|
862 |
|
|
863 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
864 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
865 |
env->err= 1; |
env->err= 1; |
866 |
return; |
return; |
867 |
} |
} |
868 |
|
|
869 |
left= env->head->item->content.ptr; |
left= CAR(env->head)->content.ptr; |
870 |
swap(env); |
right= CAR(CDR(env->head))->content.ptr; |
|
right= env->head->item->content.ptr; |
|
|
result= (left==right); |
|
|
|
|
871 |
toss(env); toss(env); |
toss(env); toss(env); |
872 |
push_int(env, result); |
|
873 |
|
push_int(env, left==right); |
874 |
} |
} |
875 |
|
|
876 |
/* Negates the top element on the stack. */ |
/* Negates the top element on the stack. */ |
878 |
{ |
{ |
879 |
int val; |
int val; |
880 |
|
|
881 |
if((env->head)==NULL) { |
if(env->head->type==empty) { |
882 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
883 |
env->err= 1; |
env->err= 1; |
884 |
return; |
return; |
885 |
} |
} |
886 |
|
|
887 |
if(env->head->item->type!=integer) { |
if(CAR(env->head)->type!=integer) { |
888 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
889 |
env->err= 2; |
env->err= 2; |
890 |
return; |
return; |
891 |
} |
} |
892 |
|
|
893 |
val= env->head->item->content.i; |
val= CAR(env->head)->content.i; |
894 |
toss(env); |
toss(env); |
895 |
push_int(env, !val); |
push_int(env, !val); |
896 |
} |
} |
909 |
symbol *sym; |
symbol *sym; |
910 |
|
|
911 |
/* 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 */ |
912 |
if(env->head==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
913 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
914 |
env->err= 1; |
env->err= 1; |
915 |
return; |
return; |
916 |
} |
} |
917 |
|
|
918 |
if(env->head->item->type!=symb) { |
if(CAR(env->head)->type!=symb) { |
919 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
920 |
env->err= 2; |
env->err= 2; |
921 |
return; |
return; |
922 |
} |
} |
923 |
|
|
924 |
/* long names are a pain */ |
/* long names are a pain */ |
925 |
sym= env->head->item->content.ptr; |
sym= CAR(env->head)->content.ptr; |
926 |
|
|
927 |
/* Bind the symbol to the value */ |
/* Bind the symbol to the value */ |
928 |
sym->val= env->head->next->item; |
sym->val= CAR(CDR(env->head)); |
929 |
|
|
930 |
toss(env); toss(env); |
toss(env); toss(env); |
931 |
} |
} |
948 |
env->gc_limit= 0; |
env->gc_limit= 0; |
949 |
gc_maybe(env); |
gc_maybe(env); |
950 |
|
|
951 |
|
words(env); |
952 |
|
|
953 |
if(env->free_string!=NULL) |
if(env->free_string!=NULL) |
954 |
free(env->free_string); |
free(env->free_string); |
955 |
|
|
956 |
|
#ifdef __linux__ |
957 |
muntrace(); |
muntrace(); |
958 |
|
#endif |
959 |
|
|
960 |
exit(EXIT_SUCCESS); |
exit(EXIT_SUCCESS); |
961 |
} |
} |
963 |
/* Clear stack */ |
/* Clear stack */ |
964 |
extern void clear(environment *env) |
extern void clear(environment *env) |
965 |
{ |
{ |
966 |
while(env->head!=NULL) |
while(env->head->type != empty) |
967 |
toss(env); |
toss(env); |
968 |
} |
} |
969 |
|
|
976 |
for(i= 0; i<HASHTBLSIZE; i++) { |
for(i= 0; i<HASHTBLSIZE; i++) { |
977 |
temp= env->symbols[i]; |
temp= env->symbols[i]; |
978 |
while(temp!=NULL) { |
while(temp!=NULL) { |
979 |
|
#ifdef DEBUG |
980 |
|
if (temp->val != NULL && temp->val->gc.flag.protect) |
981 |
|
printf("(protected) "); |
982 |
|
#endif /* DEBUG */ |
983 |
printf("%s\n", temp->id); |
printf("%s\n", temp->id); |
984 |
temp= temp->next; |
temp= temp->next; |
985 |
} |
} |
1002 |
extern void forget(environment *env) |
extern void forget(environment *env) |
1003 |
{ |
{ |
1004 |
char* sym_id; |
char* sym_id; |
|
stackitem *stack_head= env->head; |
|
1005 |
|
|
1006 |
if(stack_head==NULL) { |
if(env->head->type==empty) { |
1007 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1008 |
env->err=1; |
env->err= 1; |
1009 |
return; |
return; |
1010 |
} |
} |
1011 |
|
|
1012 |
if(stack_head->item->type!=symb) { |
if(CAR(env->head)->type!=symb) { |
1013 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1014 |
env->err=2; |
env->err= 2; |
1015 |
return; |
return; |
1016 |
} |
} |
1017 |
|
|
1018 |
sym_id= ((symbol*)(stack_head->item->content.ptr))->id; |
sym_id= CAR(env->head)->content.sym->id; |
1019 |
toss(env); |
toss(env); |
1020 |
|
|
1021 |
return forget_sym(hash(env->symbols, sym_id)); |
return forget_sym(hash(env->symbols, sym_id)); |
1033 |
|
|
1034 |
int c; /* getopt option character */ |
int c; /* getopt option character */ |
1035 |
|
|
1036 |
|
#ifdef __linux__ |
1037 |
mtrace(); |
mtrace(); |
1038 |
|
#endif |
1039 |
|
|
1040 |
init_env(&myenv); |
init_env(&myenv); |
1041 |
|
|
1049 |
break; |
break; |
1050 |
case '?': |
case '?': |
1051 |
fprintf (stderr, |
fprintf (stderr, |
1052 |
"Unknown option character `\\x%x'.\n", |
"Unknown option character '\\x%x'.\n", |
1053 |
optopt); |
optopt); |
1054 |
return EX_USAGE; |
return EX_USAGE; |
1055 |
default: |
default: |
1068 |
if(myenv.interactive) { |
if(myenv.interactive) { |
1069 |
printf("Stack version $Revision$\n\ |
printf("Stack version $Revision$\n\ |
1070 |
Copyright (C) 2002 Mats Alritzson and Teddy Hogeborn\n\ |
Copyright (C) 2002 Mats Alritzson and Teddy Hogeborn\n\ |
1071 |
Stack comes with ABSOLUTELY NO WARRANTY; for details type `warranty;'.\n\ |
Stack comes with ABSOLUTELY NO WARRANTY; for details type 'warranty;'.\n\ |
1072 |
This is free software, and you are welcome to redistribute it\n\ |
This is free software, and you are welcome to redistribute it\n\ |
1073 |
under certain conditions; type `copying;' for details.\n"); |
under certain conditions; type 'copying;' for details.\n"); |
1074 |
} |
} |
1075 |
|
|
1076 |
while(1) { |
while(1) { |
1085 |
} |
} |
1086 |
myenv.err=0; |
myenv.err=0; |
1087 |
} |
} |
1088 |
sx_72656164(&myenv); |
sx_72656164(&myenv); /* "read" */ |
1089 |
if (myenv.err==4) { |
if (myenv.err==4) { /* EOF */ |
1090 |
return EXIT_SUCCESS; /* EOF */ |
myenv.err=0; |
1091 |
} else if(myenv.head!=NULL |
quit(&myenv); |
1092 |
&& myenv.head->item->type==symb |
} else if(myenv.head->type!=empty |
1093 |
&& ((symbol*)(myenv.head->item->content.ptr))->id[0]==';') { |
&& CAR(myenv.head)->type==symb |
1094 |
|
&& CAR(myenv.head)->content.sym->id[0] |
1095 |
|
==';') { |
1096 |
toss(&myenv); /* No error check in main */ |
toss(&myenv); /* No error check in main */ |
1097 |
eval(&myenv); |
eval(&myenv); |
1098 |
} |
} |
1111 |
char* new_string; |
char* new_string; |
1112 |
value *a_val, *b_val; |
value *a_val, *b_val; |
1113 |
|
|
1114 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1115 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1116 |
env->err= 1; |
env->err= 1; |
1117 |
return; |
return; |
1118 |
} |
} |
1119 |
|
|
1120 |
if(env->head->item->type==string |
if(CAR(env->head)->type==string |
1121 |
&& env->head->next->item->type==string) { |
&& CAR(CDR(env->head))->type==string) { |
1122 |
a_val= env->head->item; |
a_val= CAR(env->head); |
1123 |
b_val= env->head->next->item; |
b_val= CAR(CDR(env->head)); |
1124 |
protect(a_val); protect(b_val); |
protect(a_val); protect(b_val); |
1125 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1126 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1135 |
return; |
return; |
1136 |
} |
} |
1137 |
|
|
1138 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
1139 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
1140 |
a=env->head->item->content.i; |
a= CAR(env->head)->content.i; |
1141 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1142 |
b=env->head->item->content.i; |
b= CAR(env->head)->content.i; |
1143 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1144 |
push_int(env, b+a); |
push_int(env, b+a); |
1145 |
|
|
1146 |
return; |
return; |
1147 |
} |
} |
1148 |
|
|
1149 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
1150 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
1151 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
1152 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1153 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
1154 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1155 |
push_float(env, fb+fa); |
push_float(env, fb+fa); |
1156 |
|
|
1157 |
return; |
return; |
1158 |
} |
} |
1159 |
|
|
1160 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
1161 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
1162 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
1163 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1164 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
1165 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1166 |
push_float(env, b+fa); |
push_float(env, b+fa); |
1167 |
|
|
1168 |
return; |
return; |
1169 |
} |
} |
1170 |
|
|
1171 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
1172 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
1173 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
1174 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1175 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
1176 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1177 |
push_float(env, fb+a); |
push_float(env, fb+a); |
1178 |
|
|
1189 |
int a, b; |
int a, b; |
1190 |
float fa, fb; |
float fa, fb; |
1191 |
|
|
1192 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1193 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1194 |
env->err=1; |
env->err=1; |
1195 |
return; |
return; |
1196 |
} |
} |
1197 |
|
|
1198 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
1199 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
1200 |
a=env->head->item->content.i; |
a= CAR(env->head)->content.i; |
1201 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1202 |
b=env->head->item->content.i; |
b= CAR(env->head)->content.i; |
1203 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1204 |
push_int(env, b-a); |
push_int(env, b-a); |
1205 |
|
|
1206 |
return; |
return; |
1207 |
} |
} |
1208 |
|
|
1209 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
1210 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
1211 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
1212 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1213 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
1214 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1215 |
push_float(env, fb-fa); |
push_float(env, fb-fa); |
1216 |
|
|
1217 |
return; |
return; |
1218 |
} |
} |
1219 |
|
|
1220 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
1221 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
1222 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
1223 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1224 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
1225 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1226 |
push_float(env, b-fa); |
push_float(env, b-fa); |
1227 |
|
|
1228 |
return; |
return; |
1229 |
} |
} |
1230 |
|
|
1231 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
1232 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
1233 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
1234 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1235 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
1236 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1237 |
push_float(env, fb-a); |
push_float(env, fb-a); |
1238 |
|
|
1249 |
int a, b; |
int a, b; |
1250 |
float fa, fb; |
float fa, fb; |
1251 |
|
|
1252 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1253 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1254 |
env->err=1; |
env->err= 1; |
1255 |
return; |
return; |
1256 |
} |
} |
1257 |
|
|
1258 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
1259 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
1260 |
a=env->head->item->content.i; |
a= CAR(env->head)->content.i; |
1261 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1262 |
b=env->head->item->content.i; |
b= CAR(env->head)->content.i; |
1263 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1264 |
push_int(env, b>a); |
push_int(env, b>a); |
1265 |
|
|
1266 |
return; |
return; |
1267 |
} |
} |
1268 |
|
|
1269 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
1270 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
1271 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
1272 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1273 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
1274 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1275 |
push_int(env, fb>fa); |
push_int(env, fb>fa); |
1276 |
|
|
1277 |
return; |
return; |
1278 |
} |
} |
1279 |
|
|
1280 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
1281 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
1282 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
1283 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1284 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
1285 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1286 |
push_int(env, b>fa); |
push_int(env, b>fa); |
1287 |
|
|
1288 |
return; |
return; |
1289 |
} |
} |
1290 |
|
|
1291 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
1292 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
1293 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
1294 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1295 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
1296 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1297 |
push_int(env, fb>a); |
push_int(env, fb>a); |
1298 |
|
|
1300 |
} |
} |
1301 |
|
|
1302 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1303 |
env->err=2; |
env->err= 2; |
1304 |
} |
} |
1305 |
|
|
1306 |
/* "<" */ |
/* "<" */ |
1327 |
/* Return copy of a value */ |
/* Return copy of a value */ |
1328 |
value *copy_val(environment *env, value *old_value) |
value *copy_val(environment *env, value *old_value) |
1329 |
{ |
{ |
|
stackitem *old_item, *new_item, *prev_item; |
|
1330 |
value *new_value; |
value *new_value; |
1331 |
|
|
1332 |
|
if(old_value==NULL) |
1333 |
|
return NULL; |
1334 |
|
|
1335 |
protect(old_value); |
protect(old_value); |
1336 |
new_value= new_val(env); |
new_value= new_val(env); |
|
protect(new_value); |
|
1337 |
new_value->type= old_value->type; |
new_value->type= old_value->type; |
1338 |
|
|
1339 |
switch(old_value->type){ |
switch(old_value->type){ |
1341 |
case integer: |
case integer: |
1342 |
case func: |
case func: |
1343 |
case symb: |
case symb: |
1344 |
|
case empty: |
1345 |
new_value->content= old_value->content; |
new_value->content= old_value->content; |
1346 |
break; |
break; |
1347 |
case string: |
case string: |
1348 |
(char *)(new_value->content.ptr)= |
(char *)(new_value->content.ptr)= |
1349 |
strdup((char *)(old_value->content.ptr)); |
strdup((char *)(old_value->content.ptr)); |
1350 |
break; |
break; |
1351 |
case list: |
case tcons: |
|
new_value->content.ptr= NULL; |
|
1352 |
|
|
1353 |
prev_item= NULL; |
new_value->content.c= malloc(sizeof(pair)); |
1354 |
old_item= (stackitem*)(old_value->content.ptr); |
assert(new_value->content.c!=NULL); |
1355 |
|
env->gc_count += sizeof(pair); |
1356 |
|
|
1357 |
while(old_item != NULL) { /* While list is not empty */ |
CAR(new_value)= copy_val(env, CAR(old_value)); /* recurse */ |
1358 |
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; |
|
|
} |
|
1359 |
break; |
break; |
1360 |
} |
} |
1361 |
|
|
1362 |
unprotect(old_value); unprotect(new_value); |
unprotect(old_value); |
1363 |
|
|
1364 |
return new_value; |
return new_value; |
1365 |
} |
} |
1367 |
/* "dup"; duplicates an item on the stack */ |
/* "dup"; duplicates an item on the stack */ |
1368 |
extern void sx_647570(environment *env) |
extern void sx_647570(environment *env) |
1369 |
{ |
{ |
1370 |
if((env->head)==NULL) { |
if(env->head->type==empty) { |
1371 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1372 |
env->err= 1; |
env->err= 1; |
1373 |
return; |
return; |
1374 |
} |
} |
1375 |
push_val(env, copy_val(env, env->head->item)); |
push_val(env, copy_val(env, CAR(env->head))); |
1376 |
} |
} |
1377 |
|
|
1378 |
/* "if", If-Then */ |
/* "if", If-Then */ |
1380 |
{ |
{ |
1381 |
int truth; |
int truth; |
1382 |
|
|
1383 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1384 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1385 |
env->err= 1; |
env->err= 1; |
1386 |
return; |
return; |
1387 |
} |
} |
1388 |
|
|
1389 |
if(env->head->next->item->type != integer) { |
if(CAR(CDR(env->head))->type != integer) { |
1390 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1391 |
env->err=2; |
env->err= 2; |
1392 |
return; |
return; |
1393 |
} |
} |
1394 |
|
|
1395 |
swap(env); |
swap(env); |
1396 |
if(env->err) return; |
if(env->err) return; |
1397 |
|
|
1398 |
truth=env->head->item->content.i; |
truth= CAR(env->head)->content.i; |
1399 |
|
|
1400 |
toss(env); |
toss(env); |
1401 |
if(env->err) return; |
if(env->err) return; |
1411 |
{ |
{ |
1412 |
int truth; |
int truth; |
1413 |
|
|
1414 |
if((env->head)==NULL || env->head->next==NULL |
if(env->head->type==empty || CDR(env->head)->type==empty |
1415 |
|| env->head->next->next==NULL) { |
|| CDR(CDR(env->head))->type==empty) { |
1416 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1417 |
env->err=1; |
env->err= 1; |
1418 |
return; |
return; |
1419 |
} |
} |
1420 |
|
|
1421 |
if(env->head->next->next->item->type != integer) { |
if(CAR(CDR(CDR(env->head)))->type!=integer) { |
1422 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1423 |
env->err=2; |
env->err= 2; |
1424 |
return; |
return; |
1425 |
} |
} |
1426 |
|
|
1427 |
rot(env); |
rot(env); |
1428 |
if(env->err) return; |
if(env->err) return; |
1429 |
|
|
1430 |
truth=env->head->item->content.i; |
truth= CAR(env->head)->content.i; |
1431 |
|
|
1432 |
toss(env); |
toss(env); |
1433 |
if(env->err) return; |
if(env->err) return; |
1442 |
eval(env); |
eval(env); |
1443 |
} |
} |
1444 |
|
|
1445 |
|
extern void sx_656c7365(environment *env) |
1446 |
|
{ |
1447 |
|
if(env->head->type==empty || CDR(env->head)->type==empty |
1448 |
|
|| CDR(CDR(env->head))->type==empty || CDR(CDR(CDR(env->head)))->type==empty |
1449 |
|
|| CDR(CDR(CDR(CDR(env->head))))->type==empty) { |
1450 |
|
printerr("Too Few Arguments"); |
1451 |
|
env->err= 1; |
1452 |
|
return; |
1453 |
|
} |
1454 |
|
|
1455 |
|
if(CAR(CDR(env->head))->type!=symb |
1456 |
|
|| strcmp(CAR(CDR(env->head))->content.sym->id, "then")!=0 |
1457 |
|
|| CAR(CDR(CDR(CDR(env->head))))->type!=symb |
1458 |
|
|| strcmp(CAR(CDR(CDR(CDR(env->head))))->content.sym->id, "if")!=0) { |
1459 |
|
printerr("Bad Argument Type"); |
1460 |
|
env->err= 2; |
1461 |
|
return; |
1462 |
|
} |
1463 |
|
|
1464 |
|
swap(env); toss(env); rot(env); toss(env); |
1465 |
|
ifelse(env); |
1466 |
|
} |
1467 |
|
|
1468 |
|
extern void then(environment *env) |
1469 |
|
{ |
1470 |
|
if(env->head->type==empty || CDR(env->head)->type==empty |
1471 |
|
|| CDR(CDR(env->head))->type==empty) { |
1472 |
|
printerr("Too Few Arguments"); |
1473 |
|
env->err= 1; |
1474 |
|
return; |
1475 |
|
} |
1476 |
|
|
1477 |
|
if(CAR(CDR(env->head))->type!=symb |
1478 |
|
|| strcmp(CAR(CDR(env->head))->content.sym->id, "if")!=0) { |
1479 |
|
printerr("Bad Argument Type"); |
1480 |
|
env->err= 2; |
1481 |
|
return; |
1482 |
|
} |
1483 |
|
|
1484 |
|
swap(env); toss(env); |
1485 |
|
sx_6966(env); |
1486 |
|
} |
1487 |
|
|
1488 |
/* "while" */ |
/* "while" */ |
1489 |
extern void sx_7768696c65(environment *env) |
extern void sx_7768696c65(environment *env) |
1490 |
{ |
{ |
1491 |
int truth; |
int truth; |
1492 |
value *loop, *test; |
value *loop, *test; |
1493 |
|
|
1494 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1495 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1496 |
env->err=1; |
env->err= 1; |
1497 |
return; |
return; |
1498 |
} |
} |
1499 |
|
|
1500 |
loop= env->head->item; |
loop= CAR(env->head); |
1501 |
protect(loop); |
protect(loop); |
1502 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1503 |
|
|
1504 |
test= env->head->item; |
test= CAR(env->head); |
1505 |
protect(test); |
protect(test); |
1506 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1507 |
|
|
1509 |
push_val(env, test); |
push_val(env, test); |
1510 |
eval(env); |
eval(env); |
1511 |
|
|
1512 |
if(env->head->item->type != integer) { |
if(CAR(env->head)->type != integer) { |
1513 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1514 |
env->err= 2; |
env->err= 2; |
1515 |
return; |
return; |
1516 |
} |
} |
1517 |
|
|
1518 |
truth= env->head->item->content.i; |
truth= CAR(env->head)->content.i; |
1519 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1520 |
|
|
1521 |
if(truth) { |
if(truth) { |
1537 |
value *loop; |
value *loop; |
1538 |
int foo1, foo2; |
int foo1, foo2; |
1539 |
|
|
1540 |
if(env->head==NULL || env->head->next==NULL |
if(env->head->type==empty || CDR(env->head)->type==empty |
1541 |
|| env->head->next->next==NULL) { |
|| CDR(CDR(env->head))->type==empty) { |
1542 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1543 |
env->err= 1; |
env->err= 1; |
1544 |
return; |
return; |
1545 |
} |
} |
1546 |
|
|
1547 |
if(env->head->next->item->type!=integer |
if(CAR(CDR(env->head))->type!=integer |
1548 |
|| env->head->next->next->item->type!=integer) { |
|| CAR(CDR(CDR(env->head)))->type!=integer) { |
1549 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1550 |
env->err= 2; |
env->err= 2; |
1551 |
return; |
return; |
1552 |
} |
} |
1553 |
|
|
1554 |
loop= env->head->item; |
loop= CAR(env->head); |
1555 |
protect(loop); |
protect(loop); |
1556 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1557 |
|
|
1558 |
foo2= env->head->item->content.i; |
foo2= CAR(env->head)->content.i; |
1559 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1560 |
|
|
1561 |
foo1= env->head->item->content.i; |
foo1= CAR(env->head)->content.i; |
1562 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1563 |
|
|
1564 |
if(foo1<=foo2) { |
if(foo1<=foo2) { |
1583 |
extern void foreach(environment *env) |
extern void foreach(environment *env) |
1584 |
{ |
{ |
1585 |
value *loop, *foo; |
value *loop, *foo; |
1586 |
stackitem *iterator; |
value *iterator; |
1587 |
|
|
1588 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1589 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1590 |
env->err= 1; |
env->err= 1; |
1591 |
return; |
return; |
1592 |
} |
} |
1593 |
|
|
1594 |
if(env->head->next->item->type != list) { |
if(CAR(CDR(env->head))->type!=tcons) { |
1595 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1596 |
env->err= 2; |
env->err= 2; |
1597 |
return; |
return; |
1598 |
} |
} |
1599 |
|
|
1600 |
loop= env->head->item; |
loop= CAR(env->head); |
1601 |
protect(loop); |
protect(loop); |
1602 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1603 |
|
|
1604 |
foo= env->head->item; |
foo= CAR(env->head); |
1605 |
protect(foo); |
protect(foo); |
1606 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1607 |
|
|
1608 |
iterator= foo->content.ptr; |
iterator= foo; |
1609 |
|
|
1610 |
while(iterator!=NULL) { |
while(iterator!=NULL) { |
1611 |
push_val(env, iterator->item); |
push_val(env, CAR(iterator)); |
1612 |
push_val(env, loop); |
push_val(env, loop); |
1613 |
eval(env); if(env->err) return; |
eval(env); if(env->err) return; |
1614 |
iterator= iterator->next; |
if (iterator->type == tcons){ |
1615 |
|
iterator= CDR(iterator); |
1616 |
|
} else { |
1617 |
|
printerr("Bad Argument Type"); /* Improper list */ |
1618 |
|
env->err= 2; |
1619 |
|
break; |
1620 |
|
} |
1621 |
} |
} |
1622 |
unprotect(loop); unprotect(foo); |
unprotect(loop); unprotect(foo); |
1623 |
} |
} |
1626 |
extern void to(environment *env) |
extern void to(environment *env) |
1627 |
{ |
{ |
1628 |
int ending, start, i; |
int ending, start, i; |
1629 |
stackitem *iterator, *temp; |
value *iterator, *temp; |
|
value *pack; |
|
1630 |
|
|
1631 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1632 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1633 |
env->err=1; |
env->err= 1; |
1634 |
return; |
return; |
1635 |
} |
} |
1636 |
|
|
1637 |
if(env->head->item->type!=integer |
if(CAR(env->head)->type!=integer |
1638 |
|| env->head->next->item->type!=integer) { |
|| CAR(CDR(env->head))->type!=integer) { |
1639 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1640 |
env->err=2; |
env->err= 2; |
1641 |
return; |
return; |
1642 |
} |
} |
1643 |
|
|
1644 |
ending= env->head->item->content.i; |
ending= CAR(env->head)->content.i; |
1645 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1646 |
start= env->head->item->content.i; |
start= CAR(env->head)->content.i; |
1647 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1648 |
|
|
1649 |
push_sym(env, "["); |
push_sym(env, "["); |
1657 |
} |
} |
1658 |
|
|
1659 |
iterator= env->head; |
iterator= env->head; |
|
pack= new_val(env); |
|
|
protect(pack); |
|
1660 |
|
|
1661 |
if(iterator==NULL |
if(iterator->type==empty |
1662 |
|| (iterator->item->type==symb |
|| (CAR(iterator)->type==symb |
1663 |
&& ((symbol*)(iterator->item->content.ptr))->id[0]=='[')) { |
&& CAR(iterator)->content.sym->id[0]=='[')) { |
1664 |
temp= NULL; |
temp= NULL; |
1665 |
toss(env); |
toss(env); |
1666 |
} else { |
} else { |
1667 |
/* Search for first delimiter */ |
/* Search for first delimiter */ |
1668 |
while(iterator->next!=NULL |
while(CDR(iterator)!=NULL |
1669 |
&& (iterator->next->item->type!=symb |
&& (CAR(CDR(iterator))->type!=symb |
1670 |
|| ((symbol*)(iterator->next->item->content.ptr))->id[0]!='[')) |
|| CAR(CDR(iterator))->content.sym->id[0]!='[')) |
1671 |
iterator= iterator->next; |
iterator= CDR(iterator); |
1672 |
|
|
1673 |
/* Extract list */ |
/* Extract list */ |
1674 |
temp= env->head; |
temp= env->head; |
1675 |
env->head= iterator->next; |
env->head= CDR(iterator); |
1676 |
iterator->next= NULL; |
CDR(iterator)= NULL; |
1677 |
|
|
|
pack->type= list; |
|
|
pack->content.ptr= temp; |
|
|
|
|
1678 |
if(env->head!=NULL) |
if(env->head!=NULL) |
1679 |
toss(env); |
toss(env); |
1680 |
} |
} |
1681 |
|
|
1682 |
/* Push list */ |
/* Push list */ |
1683 |
|
push_val(env, temp); |
|
push_val(env, pack); |
|
|
|
|
|
unprotect(pack); |
|
1684 |
} |
} |
1685 |
|
|
1686 |
/* Read a string */ |
/* Read a string */ |
1710 |
int count= -1; |
int count= -1; |
1711 |
float ftemp; |
float ftemp; |
1712 |
static int depth= 0; |
static int depth= 0; |
1713 |
char *match, *ctemp; |
char *match; |
1714 |
size_t inlength; |
size_t inlength; |
1715 |
|
|
1716 |
if(env->in_string==NULL) { |
if(env->in_string==NULL) { |
1719 |
} |
} |
1720 |
readline(env); if(env->err) return; |
readline(env); if(env->err) return; |
1721 |
|
|
1722 |
if(((char *)(env->head->item->content.ptr))[0]=='\0'){ |
if(((char *)(CAR(env->head)->content.ptr))[0]=='\0'){ |
1723 |
env->err= 4; /* "" means EOF */ |
env->err= 4; /* "" means EOF */ |
1724 |
return; |
return; |
1725 |
} |
} |
1726 |
|
|
1727 |
env->in_string= malloc(strlen(env->head->item->content.ptr)+1); |
env->in_string= malloc(strlen(CAR(env->head)->content.ptr)+1); |
1728 |
env->free_string= env->in_string; /* Save the original pointer */ |
env->free_string= env->in_string; /* Save the original pointer */ |
1729 |
strcpy(env->in_string, env->head->item->content.ptr); |
strcpy(env->in_string, CAR(env->head)->content.ptr); |
1730 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1731 |
} |
} |
1732 |
|
|
1744 |
} else { |
} else { |
1745 |
push_float(env, ftemp); |
push_float(env, ftemp); |
1746 |
} |
} |
1747 |
|
} else if(sscanf(env->in_string, "\"\"%n", &readlength) != EOF |
1748 |
|
&& readlength != -1) { |
1749 |
|
push_cstring(env, ""); |
1750 |
} else if(sscanf(env->in_string, strform, match, &readlength) != EOF |
} else if(sscanf(env->in_string, strform, match, &readlength) != EOF |
1751 |
&& readlength != -1) { |
&& readlength != -1) { |
1752 |
push_cstring(env, match); |
push_cstring(env, match); |
1778 |
return sx_72656164(env); |
return sx_72656164(env); |
1779 |
} |
} |
1780 |
|
|
1781 |
|
#ifdef __linux__ |
1782 |
extern void beep(environment *env) |
extern void beep(environment *env) |
1783 |
{ |
{ |
1784 |
int freq, dur, period, ticks; |
int freq, dur, period, ticks; |
1785 |
|
|
1786 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
1787 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1788 |
env->err=1; |
env->err= 1; |
1789 |
return; |
return; |
1790 |
} |
} |
1791 |
|
|
1792 |
if(env->head->item->type!=integer |
if(CAR(env->head)->type!=integer |
1793 |
|| env->head->next->item->type!=integer) { |
|| CAR(CDR(env->head))->type!=integer) { |
1794 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1795 |
env->err=2; |
env->err= 2; |
1796 |
return; |
return; |
1797 |
} |
} |
1798 |
|
|
1799 |
dur=env->head->item->content.i; |
dur= CAR(env->head)->content.i; |
1800 |
toss(env); |
toss(env); |
1801 |
freq=env->head->item->content.i; |
freq= CAR(env->head)->content.i; |
1802 |
toss(env); |
toss(env); |
1803 |
|
|
1804 |
period=1193180/freq; /* convert freq from Hz to period |
period= 1193180/freq; /* convert freq from Hz to period |
1805 |
length */ |
length */ |
1806 |
ticks=dur*.001193180; /* convert duration from µseconds to |
ticks= dur*.001193180; /* convert duration from µseconds to |
1807 |
timer ticks */ |
timer ticks */ |
1808 |
|
|
1809 |
/* ticks=dur/1000; */ |
/* ticks=dur/1000; */ |
1810 |
|
|
1811 |
/* if (ioctl(STDOUT_FILENO, KDMKTONE, (125<<16) + 0x637)==0) */ |
/* if (ioctl(STDOUT_FILENO, KDMKTONE, (125<<16) + 0x637)==0) */ |
1812 |
switch (ioctl(STDOUT_FILENO, KDMKTONE, (ticks<<16) | period)){ |
switch (ioctl(STDOUT_FILENO, KDMKTONE, (ticks<<16) | period)){ |
1813 |
case 0: |
case 0: |
1814 |
usleep(dur); |
usleep(dur); |
1815 |
return; |
return; |
1816 |
case -1: |
case -1: |
1817 |
perror("beep"); |
perror("beep"); |
1818 |
env->err=5; |
env->err= 5; |
1819 |
return; |
return; |
1820 |
default: |
default: |
1821 |
abort(); |
abort(); |
1822 |
} |
} |
1823 |
} |
} |
1824 |
|
#endif /* __linux__ */ |
1825 |
|
|
1826 |
/* "wait" */ |
/* "wait" */ |
1827 |
extern void sx_77616974(environment *env) |
extern void sx_77616974(environment *env) |
1828 |
{ |
{ |
1829 |
int dur; |
int dur; |
1830 |
|
|
1831 |
if((env->head)==NULL) { |
if(env->head->type==empty) { |
1832 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1833 |
env->err=1; |
env->err= 1; |
1834 |
return; |
return; |
1835 |
} |
} |
1836 |
|
|
1837 |
if(env->head->item->type!=integer) { |
if(CAR(env->head)->type!=integer) { |
1838 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
1839 |
env->err=2; |
env->err= 2; |
1840 |
return; |
return; |
1841 |
} |
} |
1842 |
|
|
1843 |
dur=env->head->item->content.i; |
dur= CAR(env->head)->content.i; |
1844 |
toss(env); |
toss(env); |
1845 |
|
|
1846 |
usleep(dur); |
usleep(dur); |
1848 |
|
|
1849 |
extern void copying(environment *env) |
extern void copying(environment *env) |
1850 |
{ |
{ |
1851 |
printf("GNU GENERAL PUBLIC LICENSE\n\ |
printf(" GNU GENERAL PUBLIC LICENSE\n\ |
1852 |
Version 2, June 1991\n\ |
Version 2, June 1991\n\ |
1853 |
\n\ |
\n\ |
1854 |
Copyright (C) 1989, 1991 Free Software Foundation, Inc.\n\ |
Copyright (C) 1989, 1991 Free Software Foundation, Inc.\n\ |
2137 |
int a, b; |
int a, b; |
2138 |
float fa, fb; |
float fa, fb; |
2139 |
|
|
2140 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
2141 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
2142 |
env->err=1; |
env->err= 1; |
2143 |
return; |
return; |
2144 |
} |
} |
2145 |
|
|
2146 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
2147 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
2148 |
a=env->head->item->content.i; |
a= CAR(env->head)->content.i; |
2149 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2150 |
b=env->head->item->content.i; |
b= CAR(env->head)->content.i; |
2151 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2152 |
push_int(env, b*a); |
push_int(env, b*a); |
2153 |
|
|
2154 |
return; |
return; |
2155 |
} |
} |
2156 |
|
|
2157 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
2158 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
2159 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
2160 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2161 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
2162 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2163 |
push_float(env, fb*fa); |
push_float(env, fb*fa); |
2164 |
|
|
2165 |
return; |
return; |
2166 |
} |
} |
2167 |
|
|
2168 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
2169 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
2170 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
2171 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2172 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
2173 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2174 |
push_float(env, b*fa); |
push_float(env, b*fa); |
2175 |
|
|
2176 |
return; |
return; |
2177 |
} |
} |
2178 |
|
|
2179 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
2180 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
2181 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
2182 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2183 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
2184 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2185 |
push_float(env, fb*a); |
push_float(env, fb*a); |
2186 |
|
|
2188 |
} |
} |
2189 |
|
|
2190 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
2191 |
env->err=2; |
env->err= 2; |
2192 |
} |
} |
2193 |
|
|
2194 |
/* "/" */ |
/* "/" */ |
2197 |
int a, b; |
int a, b; |
2198 |
float fa, fb; |
float fa, fb; |
2199 |
|
|
2200 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
2201 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
2202 |
env->err=1; |
env->err= 1; |
2203 |
return; |
return; |
2204 |
} |
} |
2205 |
|
|
2206 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
2207 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
2208 |
a=env->head->item->content.i; |
a= CAR(env->head)->content.i; |
2209 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2210 |
b=env->head->item->content.i; |
b= CAR(env->head)->content.i; |
2211 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2212 |
push_float(env, b/a); |
push_float(env, b/a); |
2213 |
|
|
2214 |
return; |
return; |
2215 |
} |
} |
2216 |
|
|
2217 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
2218 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
2219 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
2220 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2221 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
2222 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2223 |
push_float(env, fb/fa); |
push_float(env, fb/fa); |
2224 |
|
|
2225 |
return; |
return; |
2226 |
} |
} |
2227 |
|
|
2228 |
if(env->head->item->type==tfloat |
if(CAR(env->head)->type==tfloat |
2229 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
2230 |
fa= env->head->item->content.f; |
fa= CAR(env->head)->content.f; |
2231 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2232 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
2233 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2234 |
push_float(env, b/fa); |
push_float(env, b/fa); |
2235 |
|
|
2236 |
return; |
return; |
2237 |
} |
} |
2238 |
|
|
2239 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
2240 |
&& env->head->next->item->type==tfloat) { |
&& CAR(CDR(env->head))->type==tfloat) { |
2241 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
2242 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2243 |
fb= env->head->item->content.f; |
fb= CAR(env->head)->content.f; |
2244 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2245 |
push_float(env, fb/a); |
push_float(env, fb/a); |
2246 |
|
|
2248 |
} |
} |
2249 |
|
|
2250 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
2251 |
env->err=2; |
env->err= 2; |
2252 |
} |
} |
2253 |
|
|
2254 |
/* "mod" */ |
/* "mod" */ |
2256 |
{ |
{ |
2257 |
int a, b; |
int a, b; |
2258 |
|
|
2259 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
2260 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
2261 |
env->err= 1; |
env->err= 1; |
2262 |
return; |
return; |
2263 |
} |
} |
2264 |
|
|
2265 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
2266 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
2267 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
2268 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2269 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
2270 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2271 |
push_int(env, b%a); |
push_int(env, b%a); |
2272 |
|
|
2274 |
} |
} |
2275 |
|
|
2276 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
2277 |
env->err=2; |
env->err= 2; |
2278 |
} |
} |
2279 |
|
|
2280 |
/* "div" */ |
/* "div" */ |
2282 |
{ |
{ |
2283 |
int a, b; |
int a, b; |
2284 |
|
|
2285 |
if((env->head)==NULL || env->head->next==NULL) { |
if(env->head->type==empty || CDR(env->head)->type==empty) { |
2286 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
2287 |
env->err= 1; |
env->err= 1; |
2288 |
return; |
return; |
2289 |
} |
} |
2290 |
|
|
2291 |
if(env->head->item->type==integer |
if(CAR(env->head)->type==integer |
2292 |
&& env->head->next->item->type==integer) { |
&& CAR(CDR(env->head))->type==integer) { |
2293 |
a= env->head->item->content.i; |
a= CAR(env->head)->content.i; |
2294 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2295 |
b= env->head->item->content.i; |
b= CAR(env->head)->content.i; |
2296 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
2297 |
push_int(env, (int)b/a); |
push_int(env, (int)b/a); |
2298 |
|
|
2302 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
2303 |
env->err= 2; |
env->err= 2; |
2304 |
} |
} |
2305 |
|
|
2306 |
|
extern void setcar(environment *env) |
2307 |
|
{ |
2308 |
|
if(env->head->type==empty || CDR(env->head)->type==empty) { |
2309 |
|
printerr("Too Few Arguments"); |
2310 |
|
env->err= 1; |
2311 |
|
return; |
2312 |
|
} |
2313 |
|
|
2314 |
|
if(CDR(env->head)->type!=tcons) { |
2315 |
|
printerr("Bad Argument Type"); |
2316 |
|
env->err= 2; |
2317 |
|
return; |
2318 |
|
} |
2319 |
|
|
2320 |
|
CAR(CAR(CDR(env->head)))=CAR(env->head); |
2321 |
|
toss(env); |
2322 |
|
} |
2323 |
|
|
2324 |
|
extern void setcdr(environment *env) |
2325 |
|
{ |
2326 |
|
if(env->head->type==empty || CDR(env->head)->type==empty) { |
2327 |
|
printerr("Too Few Arguments"); |
2328 |
|
env->err= 1; |
2329 |
|
return; |
2330 |
|
} |
2331 |
|
|
2332 |
|
if(CDR(env->head)->type!=tcons) { |
2333 |
|
printerr("Bad Argument Type"); |
2334 |
|
env->err= 2; |
2335 |
|
return; |
2336 |
|
} |
2337 |
|
|
2338 |
|
CDR(CAR(CDR(env->head)))=CAR(env->head); |
2339 |
|
toss(env); |
2340 |
|
} |
2341 |
|
|
2342 |
|
extern void car(environment *env) |
2343 |
|
{ |
2344 |
|
if(env->head->type==empty) { |
2345 |
|
printerr("Too Few Arguments"); |
2346 |
|
env->err= 1; |
2347 |
|
return; |
2348 |
|
} |
2349 |
|
|
2350 |
|
if(CAR(env->head)->type!=tcons) { |
2351 |
|
printerr("Bad Argument Type"); |
2352 |
|
env->err= 2; |
2353 |
|
return; |
2354 |
|
} |
2355 |
|
|
2356 |
|
CAR(env->head)=CAR(CAR(env->head)); |
2357 |
|
} |
2358 |
|
|
2359 |
|
extern void cdr(environment *env) |
2360 |
|
{ |
2361 |
|
if(env->head->type==empty) { |
2362 |
|
printerr("Too Few Arguments"); |
2363 |
|
env->err= 1; |
2364 |
|
return; |
2365 |
|
} |
2366 |
|
|
2367 |
|
if(CAR(env->head)->type!=tcons) { |
2368 |
|
printerr("Bad Argument Type"); |
2369 |
|
env->err= 2; |
2370 |
|
return; |
2371 |
|
} |
2372 |
|
|
2373 |
|
CAR(env->head)=CDR(CAR(env->head)); |
2374 |
|
} |
2375 |
|
|
2376 |
|
extern void cons(environment *env) |
2377 |
|
{ |
2378 |
|
value *val; |
2379 |
|
|
2380 |
|
if(env->head->type==empty || CDR(env->head)->type==empty) { |
2381 |
|
printerr("Too Few Arguments"); |
2382 |
|
env->err= 1; |
2383 |
|
return; |
2384 |
|
} |
2385 |
|
|
2386 |
|
val=new_val(env); |
2387 |
|
val->content.c= malloc(sizeof(pair)); |
2388 |
|
assert(val->content.c!=NULL); |
2389 |
|
|
2390 |
|
env->gc_count += sizeof(pair); |
2391 |
|
val->type=tcons; |
2392 |
|
|
2393 |
|
CAR(val)= CAR(CDR(env->head)); |
2394 |
|
CDR(val)= CAR(env->head); |
2395 |
|
|
2396 |
|
push_val(env, val); |
2397 |
|
|
2398 |
|
swap(env); if(env->err) return; |
2399 |
|
toss(env); if(env->err) return; |
2400 |
|
swap(env); if(env->err) return; |
2401 |
|
toss(env); if(env->err) return; |
2402 |
|
} |