5 * Miscellaneous utilities (not Catacomb-specific)
7 * (c) 2005 Straylight/Edgeware
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of the Python interface to Catacomb.
14 * Catacomb/Python is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * Catacomb/Python is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with Catacomb/Python; if not, write to the Free Software Foundation,
26 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 /*----- Header files ------------------------------------------------------*/
31 #include "catacomb-python.h"
33 /*----- Conversions -------------------------------------------------------*/
35 PyObject *getulong(unsigned long w)
38 return (PyInt_FromLong(w));
40 return (PyLong_FromUnsignedLong(w));
43 PyObject *getbool(int b)
49 PyObject *abstract_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
51 PyErr_SetString(PyExc_TypeError, "can't instantiate this class");
55 int convulong(PyObject *o, void *pp)
58 unsigned long *p = pp;
63 if (i < 0) VALERR("must be nonnegative");
66 if ((t = PyNumber_Long(o)) == 0) goto end;
67 *p = PyLong_AsUnsignedLong(t);
69 if (PyErr_Occurred()) goto end;
77 int convu##n(PyObject *o, void *pp) \
82 if (!convulong(o, &u)) goto end; \
83 if (u > MASK##n) VALERR("out of range"); \
91 int convuint(PyObject *o, void *pp)
96 if (!convulong(o, &u)) goto end;
97 if (u > UINT_MAX) VALERR("out of range");
104 int convmpw(PyObject *o, void *pp)
109 if (!convulong(o, &u)) goto end;
110 if (u > MPW_MAX) VALERR("out of range");
117 int convszt(PyObject *o, void *pp)
122 if (!convulong(o, &u)) goto end;
123 if (u > ~(size_t)0) VALERR("out of range");
130 int convbool(PyObject *o, void *pp)
132 *(int *)pp = PyObject_IsTrue(o);
136 /*----- Type messing ------------------------------------------------------*/
138 static const PyTypeObject emptytype = { 0 };
140 void *newtype(PyTypeObject *metaty,
141 const PyTypeObject *skel,
144 PyHeapTypeObject *ty =
145 (PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0));
146 if (!skel) skel = &emptytype;
147 memcpy(ty, skel, sizeof(*skel));
148 if (ty->ht_type.tp_base) Py_INCREF(ty->ht_type.tp_base);
149 #define COPY(blah) do { \
150 if (ty->ht_type.tp_as_##blah) { \
151 memcpy(&ty->as_##blah, \
152 ty->ht_type.tp_as_##blah, \
153 sizeof(ty->as_##blah)); \
154 ty->ht_type.tp_as_##blah = &ty->as_##blah; \
163 ty->ht_name = PyString_FromString(name);
164 else if (ty->ht_type.tp_name)
165 ty->ht_name = PyString_FromString(ty->ht_type.tp_name);
167 ty->ht_type.tp_name = PyString_AS_STRING(ty->ht_name);
168 PyObject_INIT(&ty->ht_type, metaty);
173 PyTypeObject *inittype(PyTypeObject *tyskel)
175 PyTypeObject *ty = newtype(&PyType_Type, tyskel, 0);
176 ty->tp_flags |= Py_TPFLAGS_HEAPTYPE;
181 /*----- Constants ---------------------------------------------------------*/
183 void setconstants(PyObject *mod, const struct nameval *c)
188 if (c->value > LONG_MAX)
189 x = PyLong_FromUnsignedLong(c->value);
191 x = PyInt_FromLong(c->value);
192 PyModule_AddObject(mod, (/*unconst*/ char *)c->name, x);
197 /*----- Building method tables --------------------------------------------*/
199 DA_DECL(method_v, PyMethodDef);
200 static method_v global_pymethods = DA_INIT;
201 void addmethods(const PyMethodDef *m)
205 for (n = 0; m[n].ml_name; n++);
206 DA_ENSURE(&global_pymethods, n);
207 memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods),
209 DA_EXTEND(&global_pymethods, n);
212 PyMethodDef *donemethods(void)
214 static const PyMethodDef mzero = { 0 };
215 DA_PUSH(&global_pymethods, mzero);
216 return (DA(&global_pymethods));
219 /*----- Exceptions --------------------------------------------------------*/
221 PyObject * mkexc(PyObject *mod, PyObject *base,
222 const char *name, PyMethodDef *mm)
224 PyObject *nameobj = 0;
230 if ((nameobj = PyString_FromFormat("%s.%s",
231 PyModule_GetName(mod),
233 (dict = PyDict_New()) == 0 ||
234 (exc = PyErr_NewException(PyString_AS_STRING(nameobj),
239 while (mm->ml_name) {
240 if ((func = PyCFunction_NewEx(mm, 0, mod)) == 0 ||
241 (meth = PyMethod_New(func, 0, exc)) == 0 ||
242 PyDict_SetItemString(dict, mm->ml_name, meth))
244 Py_DECREF(func); func = 0;
245 Py_DECREF(meth); meth = 0;
263 /*----- Generic dictionary methods ----------------------------------------*/
265 static PyTypeObject *itemiter_pytype, *valiter_pytype;
267 typedef struct iter_pyobj {
272 #define ITER_MAP(o) (((iter_pyobj *)(o))->map)
273 #define ITER_I(o) (((iter_pyobj *)(o))->i)
275 static void iter_pydealloc(PyObject *me)
276 { Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); }
278 static PyObject *itemiter_pynext(PyObject *me)
280 PyObject *k = 0, *v = 0, *rc = 0;
282 if ((k = PyIter_Next(ITER_I(me))) != 0 &&
283 (v = PyObject_GetItem(ITER_MAP(me), k)) != 0)
284 rc = Py_BuildValue("(OO)", k, v);
285 Py_XDECREF(k); Py_XDECREF(v);
289 static PyTypeObject itemiter_pytype_skel = {
290 PyObject_HEAD_INIT(0) 0, /* Header */
291 "ItemIter", /* @tp_name@ */
292 sizeof(iter_pyobj), /* @tp_basicsize@ */
293 0, /* @tp_itemsize@ */
295 iter_pydealloc, /* @tp_dealloc@ */
297 0, /* @tp_getattr@ */
298 0, /* @tp_setattr@ */
299 0, /* @tp_compare@ */
301 0, /* @tp_as_number@ */
302 0, /* @tp_as_sequence@ */
303 0, /* @tp_as_mapping@ */
307 0, /* @tp_getattro@ */
308 0, /* @tp_setattro@ */
309 0, /* @tp_as_buffer@ */
310 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
314 "Iterates over the items of a mapping.",
316 0, /* @tp_traverse@ */
318 0, /* @tp_richcompare@ */
319 0, /* @tp_weaklistoffset@ */
320 PyObject_SelfIter, /* @tp_iter@ */
321 itemiter_pynext, /* @tp_iternext@ */
322 0, /* @tp_methods@ */
323 0, /* @tp_members@ */
327 0, /* @tp_descr_get@ */
328 0, /* @tp_descr_set@ */
329 0, /* @tp_dictoffset@ */
331 PyType_GenericAlloc, /* @tp_alloc@ */
332 abstract_pynew, /* @tp_new@ */
337 static PyObject *valiter_pynext(PyObject *me)
339 PyObject *k = 0, *rc = 0;
341 if ((k = PyIter_Next(ITER_I(me))) != 0)
342 rc = PyObject_GetItem(ITER_MAP(me), k);
347 static PyTypeObject valiter_pytype_skel = {
348 PyObject_HEAD_INIT(0) 0, /* Header */
349 "ValueIter", /* @tp_name@ */
350 sizeof(iter_pyobj), /* @tp_basicsize@ */
351 0, /* @tp_itemsize@ */
353 iter_pydealloc, /* @tp_dealloc@ */
355 0, /* @tp_getattr@ */
356 0, /* @tp_setattr@ */
357 0, /* @tp_compare@ */
359 0, /* @tp_as_number@ */
360 0, /* @tp_as_sequence@ */
361 0, /* @tp_as_mapping@ */
365 0, /* @tp_getattro@ */
366 0, /* @tp_setattro@ */
367 0, /* @tp_as_buffer@ */
368 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
372 "Iterates over the items of a mapping.",
374 0, /* @tp_traverse@ */
376 0, /* @tp_richcompare@ */
377 0, /* @tp_weaklistoffset@ */
378 PyObject_SelfIter, /* @tp_iter@ */
379 valiter_pynext, /* @tp_iternext@ */
380 0, /* @tp_methods@ */
381 0, /* @tp_members@ */
385 0, /* @tp_descr_get@ */
386 0, /* @tp_descr_set@ */
387 0, /* @tp_dictoffset@ */
389 PyType_GenericAlloc, /* @tp_alloc@ */
390 abstract_pynew, /* @tp_new@ */
395 PySequenceMethods gmap_pysequence = {
401 0, /* @sq_ass_item@ */
402 0, /* @sq_ass_slice@ */
403 PyMapping_HasKey, /* @sq_contains@ */
404 0, /* @sq_inplace_concat@ */
405 0 /* @sq_inplace_repeat@ */
408 int gmap_pysize(PyObject *me)
410 PyObject *i = 0, *x = 0;
414 if ((i = PyObject_GetIter(me)) == 0) goto done;
415 while ((x = PyIter_Next(i)) != 0) { n++; Py_DECREF(x); x = 0; }
416 if (PyErr_Occurred()) goto done;
419 Py_XDECREF(i); Py_XDECREF(x);
423 PyObject *gmapmeth_has_key(PyObject *me, PyObject *arg)
426 if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0);
427 return (getbool(PyMapping_HasKey(me, k)));
430 PyObject *gmapmeth_keys(PyObject *me, PyObject *arg)
432 PyObject *l = 0, *i = 0, *k, *rc = 0;
435 if (!PyArg_ParseTuple(arg, ":keys") ||
436 (l = PyList_New(0)) == 0 ||
437 (i = PyObject_GetIter(me)) == 0)
439 while ((k = PyIter_Next(i)) != 0)
440 { err = PyList_Append(l, k); Py_DECREF(k); if (err) goto done; }
441 if (PyErr_Occurred()) goto done;
444 Py_XDECREF(l); Py_XDECREF(i);
448 PyObject *gmapmeth_values(PyObject *me, PyObject *arg)
450 PyObject *l = 0, *i = 0, *k, *v, *rc = 0;
453 if (!PyArg_ParseTuple(arg, ":values") ||
454 (l = PyList_New(0)) == 0 ||
455 (i = PyObject_GetIter(me)) == 0)
457 while ((k = PyIter_Next(i)) != 0) {
458 if ((v = PyObject_GetItem(me, k)) == 0 ||
461 Py_DECREF(k); Py_XDECREF(v);
464 if (PyErr_Occurred()) goto done;
467 Py_XDECREF(l); Py_XDECREF(i);
471 PyObject *gmapmeth_items(PyObject *me, PyObject *arg)
473 PyObject *l = 0, *i = 0, *k, *v, *z, *rc = 0;
476 if (!PyArg_ParseTuple(arg, ":items") ||
477 (l = PyList_New(0)) == 0 ||
478 (i = PyObject_GetIter(me)) == 0)
480 while ((k = PyIter_Next(i)) != 0) {
482 if ((v = PyObject_GetItem(me, k)) == 0 ||
483 (z = Py_BuildValue("(OO)", k, v)) == 0 ||
486 Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z);
489 if (PyErr_Occurred()) goto done;
492 Py_XDECREF(l); Py_XDECREF(i);
496 PyObject *gmapmeth_iterkeys(PyObject *me, PyObject *arg)
498 if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0);
499 return (PyObject_GetIter(me));
502 PyObject *gmapmeth_itervalues(PyObject *me, PyObject *arg)
507 if (!PyArg_ParseTuple(arg, ":itervalues") ||
508 (i = PyObject_GetIter(me)) == 0)
510 ii = PyObject_NEW(iter_pyobj, valiter_pytype);
511 ii->map = me; Py_INCREF(me);
513 return ((PyObject *)ii);
516 PyObject *gmapmeth_iteritems(PyObject *me, PyObject *arg)
521 if (!PyArg_ParseTuple(arg, ":iteritems") ||
522 (i = PyObject_GetIter(me)) == 0)
524 ii = PyObject_NEW(iter_pyobj, itemiter_pytype);
525 ii->map = me; Py_INCREF(me);
527 return ((PyObject *)ii);
530 PyObject *gmapmeth_clear(PyObject *me, PyObject *arg)
532 PyObject *i = 0, *k = 0, *rc = 0;
534 if (!PyArg_ParseTuple(arg, ":clear") ||
535 (i = PyObject_GetIter(me)) == 0)
537 while ((k = PyIter_Next(i)) != 0) {
538 PyObject_DelItem(me, k);
541 if (PyErr_Occurred()) goto end;
542 rc = me; Py_INCREF(me);
548 static char *def_kwlist[] = { "key", "default", 0 };
550 PyObject *gmapmeth_get(PyObject *me, PyObject *arg, PyObject *kw)
552 PyObject *k, *def = Py_None, *v;
554 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def))
556 if ((v = PyObject_GetItem(me, k)) != 0) return (v);
561 PyObject *gmapmeth_setdefault(PyObject *me, PyObject *arg, PyObject *kw)
563 PyObject *k, *def = Py_None, *v;
565 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault",
566 def_kwlist, &k, &def))
568 if ((v = PyObject_GetItem(me, k)) != 0) return (v);
570 if (PyObject_SetItem(me, k, def)) return (0);
574 PyObject *gmapmeth_pop(PyObject *me, PyObject *arg, PyObject *kw)
576 PyObject *k, *def = 0, *v;
578 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def))
580 if ((v = PyObject_GetItem(me, k)) != 0) {
581 PyObject_DelItem(me, k);
588 PyObject *gmapmeth_update(PyObject *me, PyObject *arg)
590 PyObject *map, *i = 0, *k, *v, *rc = 0;
593 if (!PyArg_ParseTuple(arg, "O:update", &map) ||
594 (i = PyObject_GetIter(map)) == 0)
596 while ((k = PyIter_Next(i)) != 0) {
597 if ((v = PyObject_GetItem(map, k)) == 0 ||
598 PyObject_SetItem(me, k, v))
600 Py_DECREF(k); Py_XDECREF(v);
603 if (PyErr_Occurred()) goto end;
604 rc = me; Py_INCREF(me);
610 PyObject *gmapmeth_popitem(PyObject *me, PyObject *arg)
612 PyObject *i = 0, *k = 0, *v = 0, *rc = 0;
614 if (!PyArg_ParseTuple(arg, ":popitem") ||
615 (i = PyObject_GetIter(me)))
617 if ((k = PyIter_Next(i)) == 0) {
618 if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
621 if ((v = PyObject_GetItem(me, k)) == 0 ||
622 PyObject_DelItem(me, k))
624 rc = Py_BuildValue("(OO)", k, v);
626 Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v);
630 PyMethodDef gmap_pymethods[] = {
635 /*----- Initialization ----------------------------------------------------*/
637 void util_pyinit(void)
639 INITTYPE(itemiter, root);
640 INITTYPE(valiter, root);
643 void util_pyinsert(PyObject *mod)
645 INSERT("ItemIter", itemiter_pytype);
646 INSERT("ValueIter", valiter_pytype);
649 /*----- That's all, folks -------------------------------------------------*/