3 * Miscellaneous utilities (not Catacomb-specific)
5 * (c) 2005 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
10 * This file is part of the Python interface to Catacomb.
12 * Catacomb/Python is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * Catacomb/Python is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with Catacomb/Python; if not, write to the Free Software Foundation,
24 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 /*----- Header files ------------------------------------------------------*/
29 #include "catacomb-python.h"
31 /*----- External values ---------------------------------------------------*/
33 static PyObject *modname = 0;
35 /*----- Conversions -------------------------------------------------------*/
37 PyObject *getulong(unsigned long w)
40 return (PyInt_FromLong(w));
42 return (PyLong_FromUnsignedLong(w));
45 PyObject *getbool(int b)
51 PyObject *abstract_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
53 PyErr_SetString(PyExc_TypeError, "can't instantiate this class");
57 int convulong(PyObject *o, void *pp)
60 unsigned long *p = pp;
63 if (!o) VALERR("can't delete");
66 if (i < 0) VALERR("must be nonnegative");
69 if ((t = PyNumber_Long(o)) == 0) goto end;
70 *p = PyLong_AsUnsignedLong(t);
72 if (PyErr_Occurred()) goto end;
80 int convu##n(PyObject *o, void *pp) \
85 if (!convulong(o, &u)) goto end; \
86 if (u > MASK##n) VALERR("out of range"); \
94 int convuint(PyObject *o, void *pp)
99 if (!convulong(o, &u)) goto end;
100 if (u > UINT_MAX) VALERR("out of range");
107 int convmpw(PyObject *o, void *pp)
112 if (!convulong(o, &u)) goto end;
113 if (u > MPW_MAX) VALERR("out of range");
120 int convszt(PyObject *o, void *pp)
125 if (!convulong(o, &u)) goto end;
126 if (u > ~(size_t)0) VALERR("out of range");
133 int convbool(PyObject *o, void *pp)
135 if (!o) VALERR("can't delete");
136 *(int *)pp = PyObject_IsTrue(o);
142 /*----- Type messing ------------------------------------------------------*/
144 static const PyTypeObject emptytype = { 0 };
146 void *newtype(PyTypeObject *metaty,
147 const PyTypeObject *skel,
150 PyHeapTypeObject *ty =
151 (PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0));
152 if (!skel) skel = &emptytype;
153 memcpy(ty, skel, sizeof(*skel));
154 if (ty->ht_type.tp_base) Py_INCREF(ty->ht_type.tp_base);
155 #define COPY(blah) do { \
156 if (ty->ht_type.tp_as_##blah) { \
157 memcpy(&ty->as_##blah, \
158 ty->ht_type.tp_as_##blah, \
159 sizeof(ty->as_##blah)); \
160 ty->ht_type.tp_as_##blah = &ty->as_##blah; \
169 ty->ht_name = PyString_FromString(name);
170 else if (ty->ht_type.tp_name)
171 ty->ht_name = PyString_FromString(ty->ht_type.tp_name);
173 ty->ht_type.tp_name = PyString_AS_STRING(ty->ht_name);
174 DISCARD(PyObject_INIT(&ty->ht_type, metaty));
179 void typeready(PyTypeObject *ty)
182 PyDict_SetItemString(ty->tp_dict, "__module__", modname);
185 PyTypeObject *inittype(PyTypeObject *tyskel)
187 PyTypeObject *ty = newtype(&PyType_Type, tyskel, 0);
188 ty->tp_flags |= Py_TPFLAGS_HEAPTYPE;
193 /*----- Constants ---------------------------------------------------------*/
195 void setconstants(PyObject *mod, const struct nameval *c)
200 if (c->value > LONG_MAX)
201 x = PyLong_FromUnsignedLong(c->value);
203 x = PyInt_FromLong(c->value);
204 PyModule_AddObject(mod, (/*unconst*/ char *)c->name, x);
209 /*----- Building method tables --------------------------------------------*/
211 DA_DECL(method_v, PyMethodDef);
212 static method_v global_pymethods = DA_INIT;
213 void addmethods(const PyMethodDef *m)
217 for (n = 0; m[n].ml_name; n++);
218 DA_ENSURE(&global_pymethods, n);
219 memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods),
221 DA_EXTEND(&global_pymethods, n);
224 PyMethodDef *donemethods(void)
226 static const PyMethodDef mzero = { 0 };
227 DA_PUSH(&global_pymethods, mzero);
228 return (DA(&global_pymethods));
231 /*----- Exceptions --------------------------------------------------------*/
233 PyObject * mkexc(PyObject *mod, PyObject *base,
234 const char *name, PyMethodDef *mm)
236 PyObject *nameobj = 0;
242 if ((nameobj = PyString_FromFormat("%s.%s",
243 PyModule_GetName(mod),
245 (dict = PyDict_New()) == 0 ||
246 (exc = PyErr_NewException(PyString_AS_STRING(nameobj),
251 while (mm->ml_name) {
252 if ((func = PyCFunction_NewEx(mm, 0, mod)) == 0 ||
253 (meth = PyMethod_New(func, 0, exc)) == 0 ||
254 PyDict_SetItemString(dict, mm->ml_name, meth))
256 Py_DECREF(func); func = 0;
257 Py_DECREF(meth); meth = 0;
275 /*----- Generic dictionary methods ----------------------------------------*/
277 static PyTypeObject *itemiter_pytype, *valiter_pytype;
279 typedef struct iter_pyobj {
284 #define ITER_MAP(o) (((iter_pyobj *)(o))->map)
285 #define ITER_I(o) (((iter_pyobj *)(o))->i)
287 static void iter_pydealloc(PyObject *me)
288 { Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); }
290 static PyObject *itemiter_pynext(PyObject *me)
292 PyObject *k = 0, *v = 0, *rc = 0;
294 if ((k = PyIter_Next(ITER_I(me))) != 0 &&
295 (v = PyObject_GetItem(ITER_MAP(me), k)) != 0)
296 rc = Py_BuildValue("(OO)", k, v);
297 Py_XDECREF(k); Py_XDECREF(v);
301 static PyTypeObject itemiter_pytype_skel = {
302 PyObject_HEAD_INIT(0) 0, /* Header */
303 "ItemIter", /* @tp_name@ */
304 sizeof(iter_pyobj), /* @tp_basicsize@ */
305 0, /* @tp_itemsize@ */
307 iter_pydealloc, /* @tp_dealloc@ */
309 0, /* @tp_getattr@ */
310 0, /* @tp_setattr@ */
311 0, /* @tp_compare@ */
313 0, /* @tp_as_number@ */
314 0, /* @tp_as_sequence@ */
315 0, /* @tp_as_mapping@ */
319 0, /* @tp_getattro@ */
320 0, /* @tp_setattro@ */
321 0, /* @tp_as_buffer@ */
322 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
326 "Iterates over the items of a mapping.",
328 0, /* @tp_traverse@ */
330 0, /* @tp_richcompare@ */
331 0, /* @tp_weaklistoffset@ */
332 PyObject_SelfIter, /* @tp_iter@ */
333 itemiter_pynext, /* @tp_iternext@ */
334 0, /* @tp_methods@ */
335 0, /* @tp_members@ */
339 0, /* @tp_descr_get@ */
340 0, /* @tp_descr_set@ */
341 0, /* @tp_dictoffset@ */
343 PyType_GenericAlloc, /* @tp_alloc@ */
344 abstract_pynew, /* @tp_new@ */
349 static PyObject *valiter_pynext(PyObject *me)
351 PyObject *k = 0, *rc = 0;
353 if ((k = PyIter_Next(ITER_I(me))) != 0)
354 rc = PyObject_GetItem(ITER_MAP(me), k);
359 static PyTypeObject valiter_pytype_skel = {
360 PyObject_HEAD_INIT(0) 0, /* Header */
361 "ValueIter", /* @tp_name@ */
362 sizeof(iter_pyobj), /* @tp_basicsize@ */
363 0, /* @tp_itemsize@ */
365 iter_pydealloc, /* @tp_dealloc@ */
367 0, /* @tp_getattr@ */
368 0, /* @tp_setattr@ */
369 0, /* @tp_compare@ */
371 0, /* @tp_as_number@ */
372 0, /* @tp_as_sequence@ */
373 0, /* @tp_as_mapping@ */
377 0, /* @tp_getattro@ */
378 0, /* @tp_setattro@ */
379 0, /* @tp_as_buffer@ */
380 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
384 "Iterates over the items of a mapping.",
386 0, /* @tp_traverse@ */
388 0, /* @tp_richcompare@ */
389 0, /* @tp_weaklistoffset@ */
390 PyObject_SelfIter, /* @tp_iter@ */
391 valiter_pynext, /* @tp_iternext@ */
392 0, /* @tp_methods@ */
393 0, /* @tp_members@ */
397 0, /* @tp_descr_get@ */
398 0, /* @tp_descr_set@ */
399 0, /* @tp_dictoffset@ */
401 PyType_GenericAlloc, /* @tp_alloc@ */
402 abstract_pynew, /* @tp_new@ */
407 PySequenceMethods gmap_pysequence = {
413 0, /* @sq_ass_item@ */
414 0, /* @sq_ass_slice@ */
415 PyMapping_HasKey, /* @sq_contains@ */
416 0, /* @sq_inplace_concat@ */
417 0 /* @sq_inplace_repeat@ */
420 Py_ssize_t gmap_pysize(PyObject *me)
422 PyObject *i = 0, *x = 0;
426 if ((i = PyObject_GetIter(me)) == 0) goto done;
427 while ((x = PyIter_Next(i)) != 0) { n++; Py_DECREF(x); x = 0; }
428 if (PyErr_Occurred()) goto done;
431 Py_XDECREF(i); Py_XDECREF(x);
435 PyObject *gmapmeth_has_key(PyObject *me, PyObject *arg)
438 if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0);
439 return (getbool(PyMapping_HasKey(me, k)));
442 PyObject *gmapmeth_keys(PyObject *me, PyObject *arg)
444 PyObject *l = 0, *i = 0, *k, *rc = 0;
447 if (!PyArg_ParseTuple(arg, ":keys") ||
448 (l = PyList_New(0)) == 0 ||
449 (i = PyObject_GetIter(me)) == 0)
451 while ((k = PyIter_Next(i)) != 0)
452 { err = PyList_Append(l, k); Py_DECREF(k); if (err) goto done; }
453 if (PyErr_Occurred()) goto done;
456 Py_XDECREF(l); Py_XDECREF(i);
460 PyObject *gmapmeth_values(PyObject *me, PyObject *arg)
462 PyObject *l = 0, *i = 0, *k, *v, *rc = 0;
465 if (!PyArg_ParseTuple(arg, ":values") ||
466 (l = PyList_New(0)) == 0 ||
467 (i = PyObject_GetIter(me)) == 0)
469 while ((k = PyIter_Next(i)) != 0) {
470 if ((v = PyObject_GetItem(me, k)) == 0 ||
473 Py_DECREF(k); Py_XDECREF(v);
476 if (PyErr_Occurred()) goto done;
479 Py_XDECREF(l); Py_XDECREF(i);
483 PyObject *gmapmeth_items(PyObject *me, PyObject *arg)
485 PyObject *l = 0, *i = 0, *k, *v, *z, *rc = 0;
488 if (!PyArg_ParseTuple(arg, ":items") ||
489 (l = PyList_New(0)) == 0 ||
490 (i = PyObject_GetIter(me)) == 0)
492 while ((k = PyIter_Next(i)) != 0) {
494 if ((v = PyObject_GetItem(me, k)) == 0 ||
495 (z = Py_BuildValue("(OO)", k, v)) == 0 ||
498 Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z);
501 if (PyErr_Occurred()) goto done;
504 Py_XDECREF(l); Py_XDECREF(i);
508 PyObject *gmapmeth_iterkeys(PyObject *me, PyObject *arg)
510 if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0);
511 return (PyObject_GetIter(me));
514 PyObject *gmapmeth_itervalues(PyObject *me, PyObject *arg)
519 if (!PyArg_ParseTuple(arg, ":itervalues") ||
520 (i = PyObject_GetIter(me)) == 0)
522 ii = PyObject_NEW(iter_pyobj, valiter_pytype);
523 ii->map = me; Py_INCREF(me);
525 return ((PyObject *)ii);
528 PyObject *gmapmeth_iteritems(PyObject *me, PyObject *arg)
533 if (!PyArg_ParseTuple(arg, ":iteritems") ||
534 (i = PyObject_GetIter(me)) == 0)
536 ii = PyObject_NEW(iter_pyobj, itemiter_pytype);
537 ii->map = me; Py_INCREF(me);
539 return ((PyObject *)ii);
542 PyObject *gmapmeth_clear(PyObject *me, PyObject *arg)
544 PyObject *i = 0, *k = 0, *rc = 0;
546 if (!PyArg_ParseTuple(arg, ":clear") ||
547 (i = PyObject_GetIter(me)) == 0)
549 while ((k = PyIter_Next(i)) != 0) {
550 PyObject_DelItem(me, k);
553 if (PyErr_Occurred()) goto end;
554 rc = me; Py_INCREF(me);
560 static char *def_kwlist[] = { "key", "default", 0 };
562 PyObject *gmapmeth_get(PyObject *me, PyObject *arg, PyObject *kw)
564 PyObject *k, *def = Py_None, *v;
566 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def))
568 if ((v = PyObject_GetItem(me, k)) != 0) return (v);
573 PyObject *gmapmeth_setdefault(PyObject *me, PyObject *arg, PyObject *kw)
575 PyObject *k, *def = Py_None, *v;
577 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault",
578 def_kwlist, &k, &def))
580 if ((v = PyObject_GetItem(me, k)) != 0) return (v);
582 if (PyObject_SetItem(me, k, def)) return (0);
586 PyObject *gmapmeth_pop(PyObject *me, PyObject *arg, PyObject *kw)
588 PyObject *k, *def = 0, *v;
590 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def))
592 if ((v = PyObject_GetItem(me, k)) != 0) {
593 PyObject_DelItem(me, k);
600 PyObject *gmapmeth_update(PyObject *me, PyObject *arg)
602 PyObject *map, *i = 0, *k, *v, *rc = 0;
605 if (!PyArg_ParseTuple(arg, "O:update", &map) ||
606 (i = PyObject_GetIter(map)) == 0)
608 while ((k = PyIter_Next(i)) != 0) {
609 if ((v = PyObject_GetItem(map, k)) == 0 ||
610 PyObject_SetItem(me, k, v))
612 Py_DECREF(k); Py_XDECREF(v);
615 if (PyErr_Occurred()) goto end;
616 rc = me; Py_INCREF(me);
622 PyObject *gmapmeth_popitem(PyObject *me, PyObject *arg)
624 PyObject *i = 0, *k = 0, *v = 0, *rc = 0;
626 if (!PyArg_ParseTuple(arg, ":popitem") ||
627 (i = PyObject_GetIter(me)))
629 if ((k = PyIter_Next(i)) == 0) {
630 if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
633 if ((v = PyObject_GetItem(me, k)) == 0 ||
634 PyObject_DelItem(me, k))
636 rc = Py_BuildValue("(OO)", k, v);
638 Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v);
642 PyMethodDef gmap_pymethods[] = {
647 /*----- Initialization ----------------------------------------------------*/
649 void util_pyinit(void)
651 modname = PyString_FromString("catacomb");
652 INITTYPE(itemiter, root);
653 INITTYPE(valiter, root);
656 void util_pyinsert(PyObject *mod)
658 INSERT("ItemIter", itemiter_pytype);
659 INSERT("ValueIter", valiter_pytype);
662 /*----- That's all, folks -------------------------------------------------*/