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 /*----- Conversions -------------------------------------------------------*/
33 PyObject *getulong(unsigned long w)
36 return (PyInt_FromLong(w));
38 return (PyLong_FromUnsignedLong(w));
41 PyObject *getbool(int b)
47 PyObject *abstract_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
49 PyErr_SetString(PyExc_TypeError, "can't instantiate this class");
53 int convulong(PyObject *o, void *pp)
56 unsigned long *p = pp;
61 if (i < 0) VALERR("must be nonnegative");
64 if ((t = PyNumber_Long(o)) == 0) goto end;
65 *p = PyLong_AsUnsignedLong(t);
67 if (PyErr_Occurred()) goto end;
75 int convu##n(PyObject *o, void *pp) \
80 if (!convulong(o, &u)) goto end; \
81 if (u > MASK##n) VALERR("out of range"); \
89 int convuint(PyObject *o, void *pp)
94 if (!convulong(o, &u)) goto end;
95 if (u > UINT_MAX) VALERR("out of range");
102 int convmpw(PyObject *o, void *pp)
107 if (!convulong(o, &u)) goto end;
108 if (u > MPW_MAX) VALERR("out of range");
115 int convszt(PyObject *o, void *pp)
120 if (!convulong(o, &u)) goto end;
121 if (u > ~(size_t)0) VALERR("out of range");
128 int convbool(PyObject *o, void *pp)
130 *(int *)pp = PyObject_IsTrue(o);
134 /*----- Type messing ------------------------------------------------------*/
136 static const PyTypeObject emptytype = { 0 };
138 void *newtype(PyTypeObject *metaty,
139 const PyTypeObject *skel,
142 PyHeapTypeObject *ty =
143 (PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0));
144 if (!skel) skel = &emptytype;
145 memcpy(ty, skel, sizeof(*skel));
146 if (ty->ht_type.tp_base) Py_INCREF(ty->ht_type.tp_base);
147 #define COPY(blah) do { \
148 if (ty->ht_type.tp_as_##blah) { \
149 memcpy(&ty->as_##blah, \
150 ty->ht_type.tp_as_##blah, \
151 sizeof(ty->as_##blah)); \
152 ty->ht_type.tp_as_##blah = &ty->as_##blah; \
161 ty->ht_name = PyString_FromString(name);
162 else if (ty->ht_type.tp_name)
163 ty->ht_name = PyString_FromString(ty->ht_type.tp_name);
165 ty->ht_type.tp_name = PyString_AS_STRING(ty->ht_name);
166 PyObject_INIT(&ty->ht_type, metaty);
171 PyTypeObject *inittype(PyTypeObject *tyskel)
173 PyTypeObject *ty = newtype(&PyType_Type, tyskel, 0);
174 ty->tp_flags |= Py_TPFLAGS_HEAPTYPE;
179 /*----- Constants ---------------------------------------------------------*/
181 void setconstants(PyObject *mod, const struct nameval *c)
186 if (c->value > LONG_MAX)
187 x = PyLong_FromUnsignedLong(c->value);
189 x = PyInt_FromLong(c->value);
190 PyModule_AddObject(mod, (/*unconst*/ char *)c->name, x);
195 /*----- Building method tables --------------------------------------------*/
197 DA_DECL(method_v, PyMethodDef);
198 static method_v global_pymethods = DA_INIT;
199 void addmethods(const PyMethodDef *m)
203 for (n = 0; m[n].ml_name; n++);
204 DA_ENSURE(&global_pymethods, n);
205 memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods),
207 DA_EXTEND(&global_pymethods, n);
210 PyMethodDef *donemethods(void)
212 static const PyMethodDef mzero = { 0 };
213 DA_PUSH(&global_pymethods, mzero);
214 return (DA(&global_pymethods));
217 /*----- Exceptions --------------------------------------------------------*/
219 PyObject * mkexc(PyObject *mod, PyObject *base,
220 const char *name, PyMethodDef *mm)
222 PyObject *nameobj = 0;
228 if ((nameobj = PyString_FromFormat("%s.%s",
229 PyModule_GetName(mod),
231 (dict = PyDict_New()) == 0 ||
232 (exc = PyErr_NewException(PyString_AS_STRING(nameobj),
237 while (mm->ml_name) {
238 if ((func = PyCFunction_NewEx(mm, 0, mod)) == 0 ||
239 (meth = PyMethod_New(func, 0, exc)) == 0 ||
240 PyDict_SetItemString(dict, mm->ml_name, meth))
242 Py_DECREF(func); func = 0;
243 Py_DECREF(meth); meth = 0;
261 /*----- Generic dictionary methods ----------------------------------------*/
263 static PyTypeObject *itemiter_pytype, *valiter_pytype;
265 typedef struct iter_pyobj {
270 #define ITER_MAP(o) (((iter_pyobj *)(o))->map)
271 #define ITER_I(o) (((iter_pyobj *)(o))->i)
273 static void iter_pydealloc(PyObject *me)
274 { Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); }
276 static PyObject *itemiter_pynext(PyObject *me)
278 PyObject *k = 0, *v = 0, *rc = 0;
280 if ((k = PyIter_Next(ITER_I(me))) != 0 &&
281 (v = PyObject_GetItem(ITER_MAP(me), k)) != 0)
282 rc = Py_BuildValue("(OO)", k, v);
283 Py_XDECREF(k); Py_XDECREF(v);
287 static PyTypeObject itemiter_pytype_skel = {
288 PyObject_HEAD_INIT(0) 0, /* Header */
289 "ItemIter", /* @tp_name@ */
290 sizeof(iter_pyobj), /* @tp_basicsize@ */
291 0, /* @tp_itemsize@ */
293 iter_pydealloc, /* @tp_dealloc@ */
295 0, /* @tp_getattr@ */
296 0, /* @tp_setattr@ */
297 0, /* @tp_compare@ */
299 0, /* @tp_as_number@ */
300 0, /* @tp_as_sequence@ */
301 0, /* @tp_as_mapping@ */
305 0, /* @tp_getattro@ */
306 0, /* @tp_setattro@ */
307 0, /* @tp_as_buffer@ */
308 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
312 "Iterates over the items of a mapping.",
314 0, /* @tp_traverse@ */
316 0, /* @tp_richcompare@ */
317 0, /* @tp_weaklistoffset@ */
318 PyObject_SelfIter, /* @tp_iter@ */
319 itemiter_pynext, /* @tp_iternext@ */
320 0, /* @tp_methods@ */
321 0, /* @tp_members@ */
325 0, /* @tp_descr_get@ */
326 0, /* @tp_descr_set@ */
327 0, /* @tp_dictoffset@ */
329 PyType_GenericAlloc, /* @tp_alloc@ */
330 abstract_pynew, /* @tp_new@ */
335 static PyObject *valiter_pynext(PyObject *me)
337 PyObject *k = 0, *rc = 0;
339 if ((k = PyIter_Next(ITER_I(me))) != 0)
340 rc = PyObject_GetItem(ITER_MAP(me), k);
345 static PyTypeObject valiter_pytype_skel = {
346 PyObject_HEAD_INIT(0) 0, /* Header */
347 "ValueIter", /* @tp_name@ */
348 sizeof(iter_pyobj), /* @tp_basicsize@ */
349 0, /* @tp_itemsize@ */
351 iter_pydealloc, /* @tp_dealloc@ */
353 0, /* @tp_getattr@ */
354 0, /* @tp_setattr@ */
355 0, /* @tp_compare@ */
357 0, /* @tp_as_number@ */
358 0, /* @tp_as_sequence@ */
359 0, /* @tp_as_mapping@ */
363 0, /* @tp_getattro@ */
364 0, /* @tp_setattro@ */
365 0, /* @tp_as_buffer@ */
366 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
370 "Iterates over the items of a mapping.",
372 0, /* @tp_traverse@ */
374 0, /* @tp_richcompare@ */
375 0, /* @tp_weaklistoffset@ */
376 PyObject_SelfIter, /* @tp_iter@ */
377 valiter_pynext, /* @tp_iternext@ */
378 0, /* @tp_methods@ */
379 0, /* @tp_members@ */
383 0, /* @tp_descr_get@ */
384 0, /* @tp_descr_set@ */
385 0, /* @tp_dictoffset@ */
387 PyType_GenericAlloc, /* @tp_alloc@ */
388 abstract_pynew, /* @tp_new@ */
393 PySequenceMethods gmap_pysequence = {
399 0, /* @sq_ass_item@ */
400 0, /* @sq_ass_slice@ */
401 PyMapping_HasKey, /* @sq_contains@ */
402 0, /* @sq_inplace_concat@ */
403 0 /* @sq_inplace_repeat@ */
406 int gmap_pysize(PyObject *me)
408 PyObject *i = 0, *x = 0;
412 if ((i = PyObject_GetIter(me)) == 0) goto done;
413 while ((x = PyIter_Next(i)) != 0) { n++; Py_DECREF(x); x = 0; }
414 if (PyErr_Occurred()) goto done;
417 Py_XDECREF(i); Py_XDECREF(x);
421 PyObject *gmapmeth_has_key(PyObject *me, PyObject *arg)
424 if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0);
425 return (getbool(PyMapping_HasKey(me, k)));
428 PyObject *gmapmeth_keys(PyObject *me, PyObject *arg)
430 PyObject *l = 0, *i = 0, *k, *rc = 0;
433 if (!PyArg_ParseTuple(arg, ":keys") ||
434 (l = PyList_New(0)) == 0 ||
435 (i = PyObject_GetIter(me)) == 0)
437 while ((k = PyIter_Next(i)) != 0)
438 { err = PyList_Append(l, k); Py_DECREF(k); if (err) goto done; }
439 if (PyErr_Occurred()) goto done;
442 Py_XDECREF(l); Py_XDECREF(i);
446 PyObject *gmapmeth_values(PyObject *me, PyObject *arg)
448 PyObject *l = 0, *i = 0, *k, *v, *rc = 0;
451 if (!PyArg_ParseTuple(arg, ":values") ||
452 (l = PyList_New(0)) == 0 ||
453 (i = PyObject_GetIter(me)) == 0)
455 while ((k = PyIter_Next(i)) != 0) {
456 if ((v = PyObject_GetItem(me, k)) == 0 ||
459 Py_DECREF(k); Py_XDECREF(v);
462 if (PyErr_Occurred()) goto done;
465 Py_XDECREF(l); Py_XDECREF(i);
469 PyObject *gmapmeth_items(PyObject *me, PyObject *arg)
471 PyObject *l = 0, *i = 0, *k, *v, *z, *rc = 0;
474 if (!PyArg_ParseTuple(arg, ":items") ||
475 (l = PyList_New(0)) == 0 ||
476 (i = PyObject_GetIter(me)) == 0)
478 while ((k = PyIter_Next(i)) != 0) {
480 if ((v = PyObject_GetItem(me, k)) == 0 ||
481 (z = Py_BuildValue("(OO)", k, v)) == 0 ||
484 Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z);
487 if (PyErr_Occurred()) goto done;
490 Py_XDECREF(l); Py_XDECREF(i);
494 PyObject *gmapmeth_iterkeys(PyObject *me, PyObject *arg)
496 if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0);
497 return (PyObject_GetIter(me));
500 PyObject *gmapmeth_itervalues(PyObject *me, PyObject *arg)
505 if (!PyArg_ParseTuple(arg, ":itervalues") ||
506 (i = PyObject_GetIter(me)) == 0)
508 ii = PyObject_NEW(iter_pyobj, valiter_pytype);
509 ii->map = me; Py_INCREF(me);
511 return ((PyObject *)ii);
514 PyObject *gmapmeth_iteritems(PyObject *me, PyObject *arg)
519 if (!PyArg_ParseTuple(arg, ":iteritems") ||
520 (i = PyObject_GetIter(me)) == 0)
522 ii = PyObject_NEW(iter_pyobj, itemiter_pytype);
523 ii->map = me; Py_INCREF(me);
525 return ((PyObject *)ii);
528 PyObject *gmapmeth_clear(PyObject *me, PyObject *arg)
530 PyObject *i = 0, *k = 0, *rc = 0;
532 if (!PyArg_ParseTuple(arg, ":clear") ||
533 (i = PyObject_GetIter(me)) == 0)
535 while ((k = PyIter_Next(i)) != 0) {
536 PyObject_DelItem(me, k);
539 if (PyErr_Occurred()) goto end;
540 rc = me; Py_INCREF(me);
546 static char *def_kwlist[] = { "key", "default", 0 };
548 PyObject *gmapmeth_get(PyObject *me, PyObject *arg, PyObject *kw)
550 PyObject *k, *def = Py_None, *v;
552 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def))
554 if ((v = PyObject_GetItem(me, k)) != 0) return (v);
559 PyObject *gmapmeth_setdefault(PyObject *me, PyObject *arg, PyObject *kw)
561 PyObject *k, *def = Py_None, *v;
563 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault",
564 def_kwlist, &k, &def))
566 if ((v = PyObject_GetItem(me, k)) != 0) return (v);
568 if (PyObject_SetItem(me, k, def)) return (0);
572 PyObject *gmapmeth_pop(PyObject *me, PyObject *arg, PyObject *kw)
574 PyObject *k, *def = 0, *v;
576 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def))
578 if ((v = PyObject_GetItem(me, k)) != 0) {
579 PyObject_DelItem(me, k);
586 PyObject *gmapmeth_update(PyObject *me, PyObject *arg)
588 PyObject *map, *i = 0, *k, *v, *rc = 0;
591 if (!PyArg_ParseTuple(arg, "O:update", &map) ||
592 (i = PyObject_GetIter(map)) == 0)
594 while ((k = PyIter_Next(i)) != 0) {
595 if ((v = PyObject_GetItem(map, k)) == 0 ||
596 PyObject_SetItem(me, k, v))
598 Py_DECREF(k); Py_XDECREF(v);
601 if (PyErr_Occurred()) goto end;
602 rc = me; Py_INCREF(me);
608 PyObject *gmapmeth_popitem(PyObject *me, PyObject *arg)
610 PyObject *i = 0, *k = 0, *v = 0, *rc = 0;
612 if (!PyArg_ParseTuple(arg, ":popitem") ||
613 (i = PyObject_GetIter(me)))
615 if ((k = PyIter_Next(i)) == 0) {
616 if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
619 if ((v = PyObject_GetItem(me, k)) == 0 ||
620 PyObject_DelItem(me, k))
622 rc = Py_BuildValue("(OO)", k, v);
624 Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v);
628 PyMethodDef gmap_pymethods[] = {
633 /*----- Initialization ----------------------------------------------------*/
635 void util_pyinit(void)
637 INITTYPE(itemiter, root);
638 INITTYPE(valiter, root);
641 void util_pyinsert(PyObject *mod)
643 INSERT("ItemIter", itemiter_pytype);
644 INSERT("ValueIter", valiter_pytype);
647 /*----- That's all, folks -------------------------------------------------*/