3 * Copyright 2006 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
32 // nop -- out of line virtual destructor
35 ////////////////////////////////////////////////////////////////////////////
37 ////////////////////////////////////////////////////////////////////////////
39 pmt_exception::pmt_exception(const char *msg, pmt_t obj)
40 : d_msg(msg), d_obj(obj)
44 pmt_wrong_type::pmt_wrong_type(const char *msg, pmt_t obj)
45 : pmt_exception(msg, obj)
49 pmt_out_of_range::pmt_out_of_range(const char *msg, pmt_t obj)
50 : pmt_exception(msg, obj)
54 ////////////////////////////////////////////////////////////////////////////
56 ////////////////////////////////////////////////////////////////////////////
61 return dynamic_cast<pmt_symbol*>(x.get());
67 return dynamic_cast<pmt_integer*>(x.get());
73 return dynamic_cast<pmt_real*>(x.get());
79 return dynamic_cast<pmt_complex*>(x.get());
85 return dynamic_cast<pmt_pair*>(x.get());
91 return dynamic_cast<pmt_vector*>(x.get());
97 return dynamic_cast<pmt_dict*>(x.get());
100 ////////////////////////////////////////////////////////////////////////////
102 ////////////////////////////////////////////////////////////////////////////
104 const pmt_t PMT_BOOL_T = pmt_t(new pmt_bool()); // singleton
105 const pmt_t PMT_BOOL_F = pmt_t(new pmt_bool()); // singleton
107 pmt_bool::pmt_bool(){}
110 pmt_is_true(pmt_t obj)
112 return obj != PMT_BOOL_F;
116 pmt_is_false(pmt_t obj)
118 return obj == PMT_BOOL_F;
122 pmt_is_bool(pmt_t obj)
124 return obj->is_bool();
128 pmt_from_bool(bool val)
130 return val ? PMT_BOOL_T : PMT_BOOL_F;
134 pmt_to_bool(pmt_t val)
136 if (val == PMT_BOOL_T)
138 if (val == PMT_BOOL_F)
140 throw pmt_wrong_type("pmt_to_bool", val);
143 ////////////////////////////////////////////////////////////////////////////
145 ////////////////////////////////////////////////////////////////////////////
147 static const unsigned int SYMBOL_HASH_TABLE_SIZE = 701;
148 static std::vector<pmt_t> s_symbol_hash_table(SYMBOL_HASH_TABLE_SIZE);
150 pmt_symbol::pmt_symbol(const std::string &name) : d_name(name){}
154 hash_string(const std::string &s)
159 for (std::string::const_iterator p = s.begin(); p != s.end(); p++){
160 h = (h << 4) + (*p & 0xff);
171 pmt_is_symbol(pmt_t obj)
173 return obj->is_symbol();
177 pmt_string_to_symbol(const std::string &name)
179 unsigned hash = hash_string(name) % SYMBOL_HASH_TABLE_SIZE;
181 // Does a symbol with this name already exist?
182 for (pmt_t sym = s_symbol_hash_table[hash]; sym; sym = _symbol(sym)->next()){
183 if (name == _symbol(sym)->name())
184 return sym; // Yes. Return it
187 // Nope. Make a new one.
188 pmt_t sym = pmt_t(new pmt_symbol(name));
189 _symbol(sym)->set_next(s_symbol_hash_table[hash]);
190 s_symbol_hash_table[hash] = sym;
195 pmt_symbol_to_string(pmt_t sym)
197 if (!sym->is_symbol())
198 throw pmt_wrong_type("pmt_symbol_to_string", sym);
200 return _symbol(sym)->name();
203 ////////////////////////////////////////////////////////////////////////////
205 ////////////////////////////////////////////////////////////////////////////
208 pmt_is_number(pmt_t x)
210 return x->is_number();
213 ////////////////////////////////////////////////////////////////////////////
215 ////////////////////////////////////////////////////////////////////////////
217 pmt_integer::pmt_integer(long value) : d_value(value) {}
220 pmt_is_integer(pmt_t x)
222 return x->is_integer();
227 pmt_from_long(long x)
229 return pmt_t(new pmt_integer(x));
236 return _integer(x)->value();
238 throw pmt_wrong_type("pmt_to_long", x);
241 ////////////////////////////////////////////////////////////////////////////
243 ////////////////////////////////////////////////////////////////////////////
245 pmt_real::pmt_real(double value) : d_value(value) {}
254 pmt_from_double(double x)
256 return pmt_t(new pmt_real(x));
260 pmt_to_double(pmt_t x)
263 return _real(x)->value();
265 return _integer(x)->value();
267 throw pmt_wrong_type("pmt_to_double", x);
270 ////////////////////////////////////////////////////////////////////////////
272 ////////////////////////////////////////////////////////////////////////////
274 pmt_complex::pmt_complex(std::complex<double> value) : d_value(value) {}
277 pmt_is_complex(pmt_t x)
279 return x->is_complex();
283 pmt_make_rectangular(double re, double im)
285 return pmt_t(new pmt_complex(std::complex<double>(re, im)));
289 pmt_to_complex(pmt_t x)
292 return _complex(x)->value();
294 return _real(x)->value();
296 return _integer(x)->value();
298 throw pmt_wrong_type("pmt_to_complex", x);
301 ////////////////////////////////////////////////////////////////////////////
303 ////////////////////////////////////////////////////////////////////////////
305 const pmt_t PMT_NIL = pmt_t(new pmt_null()); // singleton
307 pmt_null::pmt_null() {}
308 pmt_pair::pmt_pair(pmt_t car, pmt_t cdr) : d_car(car), d_cdr(cdr) {}
317 pmt_is_pair(pmt_t obj)
319 return obj->is_pair();
323 pmt_cons(pmt_t x, pmt_t y)
325 return pmt_t(new pmt_pair(x, y));
332 return _pair(pair)->car();
334 throw pmt_wrong_type("pmt_car", pair);
341 return _pair(pair)->cdr();
343 throw pmt_wrong_type("pmt_cdr", pair);
347 pmt_set_car(pmt_t pair, pmt_t obj)
350 _pair(pair)->set_car(obj);
352 throw pmt_wrong_type("pmt_set_car", pair);
356 pmt_set_cdr(pmt_t pair, pmt_t obj)
359 _pair(pair)->set_cdr(obj);
361 throw pmt_wrong_type("pmt_set_cdr", pair);
364 ////////////////////////////////////////////////////////////////////////////
366 ////////////////////////////////////////////////////////////////////////////
368 pmt_vector::pmt_vector(size_t len, pmt_t fill)
371 for (size_t i = 0; i < len; i++)
376 pmt_vector::ref(size_t k) const
379 throw pmt_out_of_range("pmt_vector_ref", pmt_from_long(k));
384 pmt_vector::set(size_t k, pmt_t obj)
387 throw pmt_out_of_range("pmt_vector_set", pmt_from_long(k));
392 pmt_vector::fill(pmt_t obj)
394 for (size_t i = 0; i < length(); i++)
399 pmt_is_vector(pmt_t obj)
401 return obj->is_vector();
405 pmt_make_vector(size_t k, pmt_t fill)
407 return pmt_t(new pmt_vector(k, fill));
411 pmt_vector_ref(pmt_t vector, size_t k)
413 if (!vector->is_vector())
414 throw pmt_wrong_type("pmt_vector_ref", vector);
415 return _vector(vector)->ref(k);
419 pmt_vector_set(pmt_t vector, size_t k, pmt_t obj)
421 if (!vector->is_vector())
422 throw pmt_wrong_type("pmt_vector_set", vector);
423 _vector(vector)->set(k, obj);
427 pmt_vector_fill(pmt_t vector, pmt_t obj)
429 if (!vector->is_vector())
430 throw pmt_wrong_type("pmt_vector_set", vector);
431 _vector(vector)->fill(obj);
434 ////////////////////////////////////////////////////////////////////////////
436 ////////////////////////////////////////////////////////////////////////////
444 pmt_dict::set(pmt_t key, pmt_t value)
446 pmt_t p = pmt_assv(key, d_alist); // look for (key . value) pair
447 if (pmt_is_pair(p)){ // found existing pair...
448 pmt_set_cdr(p, value); // overrwrite cdr with new value
450 else { // not in the dict
451 d_alist = pmt_cons(pmt_cons(key, value), d_alist); // add new (key . value) pair
456 pmt_dict::ref(pmt_t key, pmt_t not_found) const
458 pmt_t p = pmt_assv(key, d_alist); // look for (key . value) pair
466 pmt_dict::has_key(pmt_t key) const
468 return pmt_is_pair(pmt_assv(key, d_alist));
472 pmt_dict::items() const
478 pmt_dict::keys() const
480 return pmt_map(pmt_car, d_alist);
484 pmt_dict::values() const
486 return pmt_map(pmt_cdr, d_alist);
490 pmt_is_dict(pmt_t obj)
492 return obj->is_dict();
498 return pmt_t(new pmt_dict());
502 pmt_dict_set(pmt_t dict, pmt_t key, pmt_t value)
504 if (!dict->is_dict())
505 throw pmt_wrong_type("pmt_dict_set", dict);
507 _dict(dict)->set(key, value);
511 pmt_dict_has_key(pmt_t dict, pmt_t key)
513 if (!dict->is_dict())
514 throw pmt_wrong_type("pmt_dict_has_key", dict);
516 return _dict(dict)->has_key(key);
520 pmt_dict_ref(pmt_t dict, pmt_t key, pmt_t not_found)
522 if (!dict->is_dict())
523 throw pmt_wrong_type("pmt_dict_ref", dict);
525 return _dict(dict)->ref(key, not_found);
529 pmt_dict_items(pmt_t dict)
531 if (!dict->is_dict())
532 throw pmt_wrong_type("pmt_dict_items", dict);
534 return _dict(dict)->items();
538 pmt_dict_keys(pmt_t dict)
540 if (!dict->is_dict())
541 throw pmt_wrong_type("pmt_dict_keys", dict);
543 return _dict(dict)->keys();
547 pmt_dict_values(pmt_t dict)
549 if (!dict->is_dict())
550 throw pmt_wrong_type("pmt_dict_values", dict);
552 return _dict(dict)->values();
555 ////////////////////////////////////////////////////////////////////////////
557 ////////////////////////////////////////////////////////////////////////////
560 pmt_eq(pmt_t x, pmt_t y)
566 pmt_eqv(pmt_t x, pmt_t y)
571 if (x->is_integer() && y->is_integer())
572 return _integer(x)->value() == _integer(y)->value();
574 if (x->is_real() && y->is_real())
575 return _real(x)->value() == _real(y)->value();
577 if (x->is_complex() && y->is_complex())
578 return _complex(x)->value() == _complex(y)->value();
584 pmt_equal(pmt_t x, pmt_t y)
589 if (x->is_pair() && y->is_pair())
590 return pmt_equal(pmt_car(x), pmt_car(y)) && pmt_equal(pmt_cdr(x), pmt_cdr(y));
592 if (x->is_vector() && y->is_vector()){
593 pmt_vector *xv = _vector(x);
594 pmt_vector *yv = _vector(y);
595 if (xv->length() != yv->length())
598 for (unsigned i = 0; i < xv->length(); i++)
599 if (!pmt_equal(xv->_ref(i), yv->_ref(i)))
605 // FIXME add other cases here...
614 return _vector(x)->length();
617 // FIXME uniform vector length
618 // FIXME dictionary length (number of entries)
620 throw pmt_wrong_type("pmt_length", x);
624 pmt_assq(pmt_t obj, pmt_t alist)
626 while (pmt_is_pair(alist)){
627 pmt_t p = pmt_car(alist);
628 if (!pmt_is_pair(p)) // malformed alist
631 if (pmt_eq(obj, pmt_car(p)))
634 alist = pmt_cdr(alist);
640 pmt_assv(pmt_t obj, pmt_t alist)
642 while (pmt_is_pair(alist)){
643 pmt_t p = pmt_car(alist);
644 if (!pmt_is_pair(p)) // malformed alist
647 if (pmt_eqv(obj, pmt_car(p)))
650 alist = pmt_cdr(alist);
656 pmt_assoc(pmt_t obj, pmt_t alist)
658 while (pmt_is_pair(alist)){
659 pmt_t p = pmt_car(alist);
660 if (!pmt_is_pair(p)) // malformed alist
663 if (pmt_equal(obj, pmt_car(p)))
666 alist = pmt_cdr(alist);
672 pmt_map(pmt_t proc(pmt_t), pmt_t list)
676 while(pmt_is_pair(list)){
677 r = pmt_cons(proc(pmt_car(list)), r);
678 list = pmt_cdr(list);
681 return pmt_reverse_x(r);
685 pmt_reverse(pmt_t listx)
690 while(pmt_is_pair(list)){
691 r = pmt_cons(pmt_car(list), r);
692 list = pmt_cdr(list);
694 if (pmt_is_null(list))
697 throw pmt_wrong_type("pmt_reverse", listx);
701 pmt_reverse_x(pmt_t list)
703 // FIXME do it destructively
704 return pmt_reverse(list);