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 DISCARD(PyObject_INIT(&ty
->ht_type
, metaty
));
171 PyTypeObject
*inittype(PyTypeObject
*tyskel
)
173 static PyObject
*modname
= 0;
174 PyTypeObject
*ty
= newtype(&PyType_Type
, tyskel
, 0);
175 if (!modname
) modname
= PyString_FromString("catacomb");
176 ty
->tp_flags
|= Py_TPFLAGS_HEAPTYPE
;
178 PyDict_SetItemString(ty
->tp_dict
, "__module__", modname
);
182 /*----- Constants ---------------------------------------------------------*/
184 void setconstants(PyObject
*mod
, const struct nameval
*c
)
189 if (c
->value
> LONG_MAX
)
190 x
= PyLong_FromUnsignedLong(c
->value
);
192 x
= PyInt_FromLong(c
->value
);
193 PyModule_AddObject(mod
, (/*unconst*/ char *)c
->name
, x
);
198 /*----- Building method tables --------------------------------------------*/
200 DA_DECL(method_v
, PyMethodDef
);
201 static method_v global_pymethods
= DA_INIT
;
202 void addmethods(const PyMethodDef
*m
)
206 for (n
= 0; m
[n
].ml_name
; n
++);
207 DA_ENSURE(&global_pymethods
, n
);
208 memcpy(DA(&global_pymethods
) + DA_LEN(&global_pymethods
),
210 DA_EXTEND(&global_pymethods
, n
);
213 PyMethodDef
*donemethods(void)
215 static const PyMethodDef mzero
= { 0 };
216 DA_PUSH(&global_pymethods
, mzero
);
217 return (DA(&global_pymethods
));
220 /*----- Exceptions --------------------------------------------------------*/
222 PyObject
* mkexc(PyObject
*mod
, PyObject
*base
,
223 const char *name
, PyMethodDef
*mm
)
225 PyObject
*nameobj
= 0;
231 if ((nameobj
= PyString_FromFormat("%s.%s",
232 PyModule_GetName(mod
),
234 (dict
= PyDict_New()) == 0 ||
235 (exc
= PyErr_NewException(PyString_AS_STRING(nameobj
),
240 while (mm
->ml_name
) {
241 if ((func
= PyCFunction_NewEx(mm
, 0, mod
)) == 0 ||
242 (meth
= PyMethod_New(func
, 0, exc
)) == 0 ||
243 PyDict_SetItemString(dict
, mm
->ml_name
, meth
))
245 Py_DECREF(func
); func
= 0;
246 Py_DECREF(meth
); meth
= 0;
264 /*----- Generic dictionary methods ----------------------------------------*/
266 static PyTypeObject
*itemiter_pytype
, *valiter_pytype
;
268 typedef struct iter_pyobj
{
273 #define ITER_MAP(o) (((iter_pyobj *)(o))->map)
274 #define ITER_I(o) (((iter_pyobj *)(o))->i)
276 static void iter_pydealloc(PyObject
*me
)
277 { Py_DECREF(ITER_MAP(me
)); Py_DECREF(ITER_I(me
)); FREEOBJ(me
); }
279 static PyObject
*itemiter_pynext(PyObject
*me
)
281 PyObject
*k
= 0, *v
= 0, *rc
= 0;
283 if ((k
= PyIter_Next(ITER_I(me
))) != 0 &&
284 (v
= PyObject_GetItem(ITER_MAP(me
), k
)) != 0)
285 rc
= Py_BuildValue("(OO)", k
, v
);
286 Py_XDECREF(k
); Py_XDECREF(v
);
290 static PyTypeObject itemiter_pytype_skel
= {
291 PyObject_HEAD_INIT(0) 0, /* Header */
292 "ItemIter", /* @tp_name@ */
293 sizeof(iter_pyobj
), /* @tp_basicsize@ */
294 0, /* @tp_itemsize@ */
296 iter_pydealloc
, /* @tp_dealloc@ */
298 0, /* @tp_getattr@ */
299 0, /* @tp_setattr@ */
300 0, /* @tp_compare@ */
302 0, /* @tp_as_number@ */
303 0, /* @tp_as_sequence@ */
304 0, /* @tp_as_mapping@ */
308 0, /* @tp_getattro@ */
309 0, /* @tp_setattro@ */
310 0, /* @tp_as_buffer@ */
311 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
315 "Iterates over the items of a mapping.",
317 0, /* @tp_traverse@ */
319 0, /* @tp_richcompare@ */
320 0, /* @tp_weaklistoffset@ */
321 PyObject_SelfIter
, /* @tp_iter@ */
322 itemiter_pynext
, /* @tp_iternext@ */
323 0, /* @tp_methods@ */
324 0, /* @tp_members@ */
328 0, /* @tp_descr_get@ */
329 0, /* @tp_descr_set@ */
330 0, /* @tp_dictoffset@ */
332 PyType_GenericAlloc
, /* @tp_alloc@ */
333 abstract_pynew
, /* @tp_new@ */
338 static PyObject
*valiter_pynext(PyObject
*me
)
340 PyObject
*k
= 0, *rc
= 0;
342 if ((k
= PyIter_Next(ITER_I(me
))) != 0)
343 rc
= PyObject_GetItem(ITER_MAP(me
), k
);
348 static PyTypeObject valiter_pytype_skel
= {
349 PyObject_HEAD_INIT(0) 0, /* Header */
350 "ValueIter", /* @tp_name@ */
351 sizeof(iter_pyobj
), /* @tp_basicsize@ */
352 0, /* @tp_itemsize@ */
354 iter_pydealloc
, /* @tp_dealloc@ */
356 0, /* @tp_getattr@ */
357 0, /* @tp_setattr@ */
358 0, /* @tp_compare@ */
360 0, /* @tp_as_number@ */
361 0, /* @tp_as_sequence@ */
362 0, /* @tp_as_mapping@ */
366 0, /* @tp_getattro@ */
367 0, /* @tp_setattro@ */
368 0, /* @tp_as_buffer@ */
369 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
373 "Iterates over the items of a mapping.",
375 0, /* @tp_traverse@ */
377 0, /* @tp_richcompare@ */
378 0, /* @tp_weaklistoffset@ */
379 PyObject_SelfIter
, /* @tp_iter@ */
380 valiter_pynext
, /* @tp_iternext@ */
381 0, /* @tp_methods@ */
382 0, /* @tp_members@ */
386 0, /* @tp_descr_get@ */
387 0, /* @tp_descr_set@ */
388 0, /* @tp_dictoffset@ */
390 PyType_GenericAlloc
, /* @tp_alloc@ */
391 abstract_pynew
, /* @tp_new@ */
396 PySequenceMethods gmap_pysequence
= {
402 0, /* @sq_ass_item@ */
403 0, /* @sq_ass_slice@ */
404 PyMapping_HasKey
, /* @sq_contains@ */
405 0, /* @sq_inplace_concat@ */
406 0 /* @sq_inplace_repeat@ */
409 int gmap_pysize(PyObject
*me
)
411 PyObject
*i
= 0, *x
= 0;
415 if ((i
= PyObject_GetIter(me
)) == 0) goto done
;
416 while ((x
= PyIter_Next(i
)) != 0) { n
++; Py_DECREF(x
); x
= 0; }
417 if (PyErr_Occurred()) goto done
;
420 Py_XDECREF(i
); Py_XDECREF(x
);
424 PyObject
*gmapmeth_has_key(PyObject
*me
, PyObject
*arg
)
427 if (!PyArg_ParseTuple(arg
, "O:has_key", &k
)) return (0);
428 return (getbool(PyMapping_HasKey(me
, k
)));
431 PyObject
*gmapmeth_keys(PyObject
*me
, PyObject
*arg
)
433 PyObject
*l
= 0, *i
= 0, *k
, *rc
= 0;
436 if (!PyArg_ParseTuple(arg
, ":keys") ||
437 (l
= PyList_New(0)) == 0 ||
438 (i
= PyObject_GetIter(me
)) == 0)
440 while ((k
= PyIter_Next(i
)) != 0)
441 { err
= PyList_Append(l
, k
); Py_DECREF(k
); if (err
) goto done
; }
442 if (PyErr_Occurred()) goto done
;
445 Py_XDECREF(l
); Py_XDECREF(i
);
449 PyObject
*gmapmeth_values(PyObject
*me
, PyObject
*arg
)
451 PyObject
*l
= 0, *i
= 0, *k
, *v
, *rc
= 0;
454 if (!PyArg_ParseTuple(arg
, ":values") ||
455 (l
= PyList_New(0)) == 0 ||
456 (i
= PyObject_GetIter(me
)) == 0)
458 while ((k
= PyIter_Next(i
)) != 0) {
459 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
462 Py_DECREF(k
); Py_XDECREF(v
);
465 if (PyErr_Occurred()) goto done
;
468 Py_XDECREF(l
); Py_XDECREF(i
);
472 PyObject
*gmapmeth_items(PyObject
*me
, PyObject
*arg
)
474 PyObject
*l
= 0, *i
= 0, *k
, *v
, *z
, *rc
= 0;
477 if (!PyArg_ParseTuple(arg
, ":items") ||
478 (l
= PyList_New(0)) == 0 ||
479 (i
= PyObject_GetIter(me
)) == 0)
481 while ((k
= PyIter_Next(i
)) != 0) {
483 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
484 (z
= Py_BuildValue("(OO)", k
, v
)) == 0 ||
487 Py_DECREF(k
); Py_XDECREF(v
); Py_XDECREF(z
);
490 if (PyErr_Occurred()) goto done
;
493 Py_XDECREF(l
); Py_XDECREF(i
);
497 PyObject
*gmapmeth_iterkeys(PyObject
*me
, PyObject
*arg
)
499 if (!PyArg_ParseTuple(arg
, ":iterkeys")) return (0);
500 return (PyObject_GetIter(me
));
503 PyObject
*gmapmeth_itervalues(PyObject
*me
, PyObject
*arg
)
508 if (!PyArg_ParseTuple(arg
, ":itervalues") ||
509 (i
= PyObject_GetIter(me
)) == 0)
511 ii
= PyObject_NEW(iter_pyobj
, valiter_pytype
);
512 ii
->map
= me
; Py_INCREF(me
);
514 return ((PyObject
*)ii
);
517 PyObject
*gmapmeth_iteritems(PyObject
*me
, PyObject
*arg
)
522 if (!PyArg_ParseTuple(arg
, ":iteritems") ||
523 (i
= PyObject_GetIter(me
)) == 0)
525 ii
= PyObject_NEW(iter_pyobj
, itemiter_pytype
);
526 ii
->map
= me
; Py_INCREF(me
);
528 return ((PyObject
*)ii
);
531 PyObject
*gmapmeth_clear(PyObject
*me
, PyObject
*arg
)
533 PyObject
*i
= 0, *k
= 0, *rc
= 0;
535 if (!PyArg_ParseTuple(arg
, ":clear") ||
536 (i
= PyObject_GetIter(me
)) == 0)
538 while ((k
= PyIter_Next(i
)) != 0) {
539 PyObject_DelItem(me
, k
);
542 if (PyErr_Occurred()) goto end
;
543 rc
= me
; Py_INCREF(me
);
549 static char *def_kwlist
[] = { "key", "default", 0 };
551 PyObject
*gmapmeth_get(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
553 PyObject
*k
, *def
= Py_None
, *v
;
555 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:get", def_kwlist
, &k
, &def
))
557 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
562 PyObject
*gmapmeth_setdefault(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
564 PyObject
*k
, *def
= Py_None
, *v
;
566 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:setdefault",
567 def_kwlist
, &k
, &def
))
569 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
571 if (PyObject_SetItem(me
, k
, def
)) return (0);
575 PyObject
*gmapmeth_pop(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
577 PyObject
*k
, *def
= 0, *v
;
579 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:pop", def_kwlist
, &k
, &def
))
581 if ((v
= PyObject_GetItem(me
, k
)) != 0) {
582 PyObject_DelItem(me
, k
);
589 PyObject
*gmapmeth_update(PyObject
*me
, PyObject
*arg
)
591 PyObject
*map
, *i
= 0, *k
, *v
, *rc
= 0;
594 if (!PyArg_ParseTuple(arg
, "O:update", &map
) ||
595 (i
= PyObject_GetIter(map
)) == 0)
597 while ((k
= PyIter_Next(i
)) != 0) {
598 if ((v
= PyObject_GetItem(map
, k
)) == 0 ||
599 PyObject_SetItem(me
, k
, v
))
601 Py_DECREF(k
); Py_XDECREF(v
);
604 if (PyErr_Occurred()) goto end
;
605 rc
= me
; Py_INCREF(me
);
611 PyObject
*gmapmeth_popitem(PyObject
*me
, PyObject
*arg
)
613 PyObject
*i
= 0, *k
= 0, *v
= 0, *rc
= 0;
615 if (!PyArg_ParseTuple(arg
, ":popitem") ||
616 (i
= PyObject_GetIter(me
)))
618 if ((k
= PyIter_Next(i
)) == 0) {
619 if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
622 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
623 PyObject_DelItem(me
, k
))
625 rc
= Py_BuildValue("(OO)", k
, v
);
627 Py_XDECREF(i
); Py_XDECREF(k
); Py_XDECREF(v
);
631 PyMethodDef gmap_pymethods
[] = {
636 /*----- Initialization ----------------------------------------------------*/
638 void util_pyinit(void)
640 INITTYPE(itemiter
, root
);
641 INITTYPE(valiter
, root
);
644 void util_pyinsert(PyObject
*mod
)
646 INSERT("ItemIter", itemiter_pytype
);
647 INSERT("ValueIter", valiter_pytype
);
650 /*----- That's all, folks -------------------------------------------------*/