Commit | Line | Data |
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68ec53f3 | 1 | /* -*-c-*- |
68ec53f3 MW |
2 | * |
3 | * Miscellaneous utilities (not Catacomb-specific) | |
4 | * | |
5 | * (c) 2005 Straylight/Edgeware | |
6 | */ | |
7 | ||
0b1eafbf | 8 | /*----- Licensing notice --------------------------------------------------* |
68ec53f3 MW |
9 | * |
10 | * This file is part of the Python interface to Catacomb. | |
11 | * | |
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. | |
0b1eafbf | 16 | * |
68ec53f3 MW |
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. | |
0b1eafbf | 21 | * |
68ec53f3 MW |
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. | |
25 | */ | |
26 | ||
27 | /*----- Header files ------------------------------------------------------*/ | |
28 | ||
29 | #include "catacomb-python.h" | |
30 | ||
0156e402 MW |
31 | /*----- External values ---------------------------------------------------*/ |
32 | ||
33 | static PyObject *modname = 0; | |
34 | ||
68ec53f3 MW |
35 | /*----- Conversions -------------------------------------------------------*/ |
36 | ||
1e082a86 MW |
37 | PyObject *getulong(unsigned long w) |
38 | { | |
4f3d0934 | 39 | if (w <= LONG_MAX) |
1e082a86 MW |
40 | return (PyInt_FromLong(w)); |
41 | else | |
42 | return (PyLong_FromUnsignedLong(w)); | |
43 | } | |
68ec53f3 MW |
44 | |
45 | PyObject *getbool(int b) | |
46 | { | |
47 | if (b) RETURN_TRUE; | |
48 | else RETURN_FALSE; | |
49 | } | |
50 | ||
51 | PyObject *abstract_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
52 | { | |
53 | PyErr_SetString(PyExc_TypeError, "can't instantiate this class"); | |
54 | return (0); | |
55 | } | |
56 | ||
57 | int convulong(PyObject *o, void *pp) | |
58 | { | |
59 | long i; | |
60 | unsigned long *p = pp; | |
61 | PyObject *t; | |
62 | ||
c0ddcbac | 63 | if (!o) VALERR("can't delete"); |
68ec53f3 MW |
64 | if (PyInt_Check(o)) { |
65 | i = PyInt_AS_LONG(o); | |
799dffb2 | 66 | if (i < 0) VALERR("must be nonnegative"); |
68ec53f3 MW |
67 | *p = i; |
68 | } else { | |
69 | if ((t = PyNumber_Long(o)) == 0) goto end; | |
70 | *p = PyLong_AsUnsignedLong(t); | |
71 | Py_DECREF(t); | |
72 | if (PyErr_Occurred()) goto end; | |
73 | } | |
74 | return (1); | |
75 | end: | |
76 | return (0); | |
77 | } | |
78 | ||
79 | #define CONVU_(n) \ | |
80 | int convu##n(PyObject *o, void *pp) \ | |
81 | { \ | |
82 | unsigned long u; \ | |
83 | uint##n *p = pp; \ | |
84 | \ | |
85 | if (!convulong(o, &u)) goto end; \ | |
799dffb2 | 86 | if (u > MASK##n) VALERR("out of range"); \ |
68ec53f3 MW |
87 | *p = u; \ |
88 | return (1); \ | |
89 | end: \ | |
90 | return (0); \ | |
91 | } | |
92 | DOUINTSZ(CONVU_) | |
93 | ||
94 | int convuint(PyObject *o, void *pp) | |
95 | { | |
96 | unsigned long u; | |
97 | unsigned *p = pp; | |
98 | ||
99 | if (!convulong(o, &u)) goto end; | |
799dffb2 | 100 | if (u > UINT_MAX) VALERR("out of range"); |
68ec53f3 MW |
101 | *p = u; |
102 | return (1); | |
103 | end: | |
104 | return (0); | |
105 | } | |
106 | ||
107 | int convmpw(PyObject *o, void *pp) | |
108 | { | |
109 | unsigned long u; | |
110 | unsigned *p = pp; | |
111 | ||
112 | if (!convulong(o, &u)) goto end; | |
799dffb2 | 113 | if (u > MPW_MAX) VALERR("out of range"); |
68ec53f3 MW |
114 | *p = u; |
115 | return (1); | |
116 | end: | |
117 | return (0); | |
118 | } | |
119 | ||
120 | int convszt(PyObject *o, void *pp) | |
121 | { | |
122 | unsigned long u; | |
123 | size_t *p = pp; | |
124 | ||
125 | if (!convulong(o, &u)) goto end; | |
799dffb2 | 126 | if (u > ~(size_t)0) VALERR("out of range"); |
68ec53f3 MW |
127 | *p = u; |
128 | return (1); | |
129 | end: | |
130 | return (0); | |
131 | } | |
132 | ||
133 | int convbool(PyObject *o, void *pp) | |
134 | { | |
c0ddcbac | 135 | if (!o) VALERR("can't delete"); |
68ec53f3 MW |
136 | *(int *)pp = PyObject_IsTrue(o); |
137 | return (1); | |
c0ddcbac MW |
138 | end: |
139 | return (0); | |
68ec53f3 MW |
140 | } |
141 | ||
142 | /*----- Type messing ------------------------------------------------------*/ | |
143 | ||
144 | static const PyTypeObject emptytype = { 0 }; | |
145 | ||
146 | void *newtype(PyTypeObject *metaty, | |
147 | const PyTypeObject *skel, | |
148 | const char *name) | |
149 | { | |
150 | PyHeapTypeObject *ty = | |
151 | (PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0)); | |
152 | if (!skel) skel = &emptytype; | |
153 | memcpy(ty, skel, sizeof(*skel)); | |
d4a9e7e7 | 154 | if (ty->ht_type.tp_base) Py_INCREF(ty->ht_type.tp_base); |
68ec53f3 | 155 | #define COPY(blah) do { \ |
d4a9e7e7 | 156 | if (ty->ht_type.tp_as_##blah) { \ |
68ec53f3 | 157 | memcpy(&ty->as_##blah, \ |
d4a9e7e7 | 158 | ty->ht_type.tp_as_##blah, \ |
68ec53f3 | 159 | sizeof(ty->as_##blah)); \ |
d4a9e7e7 | 160 | ty->ht_type.tp_as_##blah = &ty->as_##blah; \ |
68ec53f3 MW |
161 | } \ |
162 | } while (0) | |
163 | COPY(number); | |
164 | COPY(sequence); | |
165 | COPY(mapping); | |
166 | COPY(buffer); | |
167 | #undef COPY | |
168 | if (name) | |
d4a9e7e7 MW |
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); | |
172 | if (ty->ht_name) | |
173 | ty->ht_type.tp_name = PyString_AS_STRING(ty->ht_name); | |
f60b520f | 174 | DISCARD(PyObject_INIT(&ty->ht_type, metaty)); |
68ec53f3 MW |
175 | Py_INCREF(metaty); |
176 | return (ty); | |
177 | } | |
178 | ||
0156e402 MW |
179 | void typeready(PyTypeObject *ty) |
180 | { | |
181 | PyType_Ready(ty); | |
182 | PyDict_SetItemString(ty->tp_dict, "__module__", modname); | |
183 | } | |
184 | ||
68ec53f3 MW |
185 | PyTypeObject *inittype(PyTypeObject *tyskel) |
186 | { | |
187 | PyTypeObject *ty = newtype(&PyType_Type, tyskel, 0); | |
188 | ty->tp_flags |= Py_TPFLAGS_HEAPTYPE; | |
0156e402 | 189 | typeready(ty); |
68ec53f3 MW |
190 | return (ty); |
191 | } | |
192 | ||
193 | /*----- Constants ---------------------------------------------------------*/ | |
194 | ||
195 | void setconstants(PyObject *mod, const struct nameval *c) | |
196 | { | |
197 | PyObject *x; | |
198 | ||
199 | while (c->name) { | |
200 | if (c->value > LONG_MAX) | |
201 | x = PyLong_FromUnsignedLong(c->value); | |
202 | else | |
203 | x = PyInt_FromLong(c->value); | |
204 | PyModule_AddObject(mod, (/*unconst*/ char *)c->name, x); | |
205 | c++; | |
206 | } | |
207 | } | |
208 | ||
209 | /*----- Building method tables --------------------------------------------*/ | |
210 | ||
211 | DA_DECL(method_v, PyMethodDef); | |
212 | static method_v global_pymethods = DA_INIT; | |
213 | void addmethods(const PyMethodDef *m) | |
214 | { | |
215 | size_t n; | |
216 | ||
217 | for (n = 0; m[n].ml_name; n++); | |
218 | DA_ENSURE(&global_pymethods, n); | |
219 | memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods), | |
220 | m, n * sizeof(*m)); | |
221 | DA_EXTEND(&global_pymethods, n); | |
222 | } | |
223 | ||
224 | PyMethodDef *donemethods(void) | |
225 | { | |
226 | static const PyMethodDef mzero = { 0 }; | |
227 | DA_PUSH(&global_pymethods, mzero); | |
228 | return (DA(&global_pymethods)); | |
229 | } | |
230 | ||
231 | /*----- Exceptions --------------------------------------------------------*/ | |
232 | ||
233 | PyObject * mkexc(PyObject *mod, PyObject *base, | |
234 | const char *name, PyMethodDef *mm) | |
235 | { | |
236 | PyObject *nameobj = 0; | |
237 | PyObject *dict = 0; | |
238 | PyObject *exc = 0; | |
239 | PyObject *func = 0; | |
240 | PyObject *meth = 0; | |
241 | ||
242 | if ((nameobj = PyString_FromFormat("%s.%s", | |
243 | PyModule_GetName(mod), | |
244 | name)) == 0 || | |
245 | (dict = PyDict_New()) == 0 || | |
246 | (exc = PyErr_NewException(PyString_AS_STRING(nameobj), | |
247 | base, dict)) == 0) | |
248 | goto fail; | |
249 | ||
250 | if (mm) { | |
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)) | |
255 | goto fail; | |
256 | Py_DECREF(func); func = 0; | |
257 | Py_DECREF(meth); meth = 0; | |
258 | mm++; | |
259 | } | |
260 | } | |
261 | ||
262 | done: | |
263 | Py_XDECREF(nameobj); | |
264 | Py_XDECREF(dict); | |
265 | return (exc); | |
266 | ||
267 | fail: | |
268 | Py_XDECREF(exc); | |
269 | Py_XDECREF(func); | |
270 | Py_XDECREF(meth); | |
271 | exc = 0; | |
272 | goto done; | |
273 | } | |
274 | ||
275 | /*----- Generic dictionary methods ----------------------------------------*/ | |
276 | ||
277 | static PyTypeObject *itemiter_pytype, *valiter_pytype; | |
278 | ||
279 | typedef struct iter_pyobj { | |
280 | PyObject_HEAD | |
281 | PyObject *map; | |
282 | PyObject *i; | |
283 | } iter_pyobj; | |
284 | #define ITER_MAP(o) (((iter_pyobj *)(o))->map) | |
285 | #define ITER_I(o) (((iter_pyobj *)(o))->i) | |
286 | ||
287 | static void iter_pydealloc(PyObject *me) | |
288 | { Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); } | |
289 | ||
290 | static PyObject *itemiter_pynext(PyObject *me) | |
291 | { | |
292 | PyObject *k = 0, *v = 0, *rc = 0; | |
0b1eafbf | 293 | |
68ec53f3 MW |
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); | |
298 | return (rc); | |
299 | } | |
300 | ||
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@ */ | |
306 | ||
307 | iter_pydealloc, /* @tp_dealloc@ */ | |
308 | 0, /* @tp_print@ */ | |
309 | 0, /* @tp_getattr@ */ | |
310 | 0, /* @tp_setattr@ */ | |
311 | 0, /* @tp_compare@ */ | |
312 | 0, /* @tp_repr@ */ | |
313 | 0, /* @tp_as_number@ */ | |
314 | 0, /* @tp_as_sequence@ */ | |
315 | 0, /* @tp_as_mapping@ */ | |
316 | 0, /* @tp_hash@ */ | |
317 | 0, /* @tp_call@ */ | |
318 | 0, /* @tp_str@ */ | |
319 | 0, /* @tp_getattro@ */ | |
320 | 0, /* @tp_setattro@ */ | |
321 | 0, /* @tp_as_buffer@ */ | |
322 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
323 | Py_TPFLAGS_BASETYPE, | |
324 | ||
325 | /* @tp_doc@ */ | |
326 | "Iterates over the items of a mapping.", | |
327 | ||
328 | 0, /* @tp_traverse@ */ | |
329 | 0, /* @tp_clear@ */ | |
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@ */ | |
336 | 0, /* @tp_getset@ */ | |
337 | 0, /* @tp_base@ */ | |
338 | 0, /* @tp_dict@ */ | |
339 | 0, /* @tp_descr_get@ */ | |
340 | 0, /* @tp_descr_set@ */ | |
341 | 0, /* @tp_dictoffset@ */ | |
342 | 0, /* @tp_init@ */ | |
343 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
344 | abstract_pynew, /* @tp_new@ */ | |
345 | 0, /* @tp_free@ */ | |
346 | 0 /* @tp_is_gc@ */ | |
347 | }; | |
348 | ||
349 | static PyObject *valiter_pynext(PyObject *me) | |
350 | { | |
351 | PyObject *k = 0, *rc = 0; | |
0b1eafbf | 352 | |
68ec53f3 MW |
353 | if ((k = PyIter_Next(ITER_I(me))) != 0) |
354 | rc = PyObject_GetItem(ITER_MAP(me), k); | |
355 | Py_XDECREF(k); | |
356 | return (rc); | |
357 | } | |
358 | ||
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@ */ | |
364 | ||
365 | iter_pydealloc, /* @tp_dealloc@ */ | |
366 | 0, /* @tp_print@ */ | |
367 | 0, /* @tp_getattr@ */ | |
368 | 0, /* @tp_setattr@ */ | |
369 | 0, /* @tp_compare@ */ | |
370 | 0, /* @tp_repr@ */ | |
371 | 0, /* @tp_as_number@ */ | |
372 | 0, /* @tp_as_sequence@ */ | |
373 | 0, /* @tp_as_mapping@ */ | |
374 | 0, /* @tp_hash@ */ | |
375 | 0, /* @tp_call@ */ | |
376 | 0, /* @tp_str@ */ | |
377 | 0, /* @tp_getattro@ */ | |
378 | 0, /* @tp_setattro@ */ | |
379 | 0, /* @tp_as_buffer@ */ | |
380 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
381 | Py_TPFLAGS_BASETYPE, | |
382 | ||
383 | /* @tp_doc@ */ | |
384 | "Iterates over the items of a mapping.", | |
385 | ||
386 | 0, /* @tp_traverse@ */ | |
387 | 0, /* @tp_clear@ */ | |
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@ */ | |
394 | 0, /* @tp_getset@ */ | |
395 | 0, /* @tp_base@ */ | |
396 | 0, /* @tp_dict@ */ | |
397 | 0, /* @tp_descr_get@ */ | |
398 | 0, /* @tp_descr_set@ */ | |
399 | 0, /* @tp_dictoffset@ */ | |
400 | 0, /* @tp_init@ */ | |
401 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
402 | abstract_pynew, /* @tp_new@ */ | |
403 | 0, /* @tp_free@ */ | |
404 | 0 /* @tp_is_gc@ */ | |
405 | }; | |
406 | ||
407 | PySequenceMethods gmap_pysequence = { | |
408 | 0, /* @sq_length@ */ | |
409 | 0, /* @sq_concat@ */ | |
410 | 0, /* @sq_repeat@ */ | |
411 | 0, /* @sq_item@ */ | |
412 | 0, /* @sq_slice@ */ | |
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@ */ | |
0b1eafbf | 418 | }; |
68ec53f3 | 419 | |
6f1a40f3 | 420 | Py_ssize_t gmap_pysize(PyObject *me) |
68ec53f3 MW |
421 | { |
422 | PyObject *i = 0, *x = 0; | |
423 | int rc = -1; | |
424 | int n = 0; | |
425 | ||
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; | |
429 | rc = n; | |
430 | done: | |
431 | Py_XDECREF(i); Py_XDECREF(x); | |
432 | return (rc); | |
433 | } | |
434 | ||
435 | PyObject *gmapmeth_has_key(PyObject *me, PyObject *arg) | |
436 | { | |
437 | PyObject *k; | |
438 | if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0); | |
439 | return (getbool(PyMapping_HasKey(me, k))); | |
440 | } | |
441 | ||
442 | PyObject *gmapmeth_keys(PyObject *me, PyObject *arg) | |
443 | { | |
444 | PyObject *l = 0, *i = 0, *k, *rc = 0; | |
445 | int err; | |
446 | ||
447 | if (!PyArg_ParseTuple(arg, ":keys") || | |
448 | (l = PyList_New(0)) == 0 || | |
449 | (i = PyObject_GetIter(me)) == 0) | |
450 | goto done; | |
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; | |
454 | rc = l; l = 0; | |
455 | done: | |
456 | Py_XDECREF(l); Py_XDECREF(i); | |
457 | return (rc); | |
458 | } | |
459 | ||
460 | PyObject *gmapmeth_values(PyObject *me, PyObject *arg) | |
461 | { | |
462 | PyObject *l = 0, *i = 0, *k, *v, *rc = 0; | |
463 | int err = 0; | |
464 | ||
465 | if (!PyArg_ParseTuple(arg, ":values") || | |
466 | (l = PyList_New(0)) == 0 || | |
467 | (i = PyObject_GetIter(me)) == 0) | |
468 | goto done; | |
0b1eafbf | 469 | while ((k = PyIter_Next(i)) != 0) { |
68ec53f3 MW |
470 | if ((v = PyObject_GetItem(me, k)) == 0 || |
471 | PyList_Append(l, v)) | |
472 | err = -1; | |
473 | Py_DECREF(k); Py_XDECREF(v); | |
474 | if (err) goto done; | |
475 | } | |
476 | if (PyErr_Occurred()) goto done; | |
477 | rc = l; l = 0; | |
478 | done: | |
479 | Py_XDECREF(l); Py_XDECREF(i); | |
480 | return (rc); | |
481 | } | |
482 | ||
483 | PyObject *gmapmeth_items(PyObject *me, PyObject *arg) | |
484 | { | |
485 | PyObject *l = 0, *i = 0, *k, *v, *z, *rc = 0; | |
486 | int err = 0; | |
487 | ||
488 | if (!PyArg_ParseTuple(arg, ":items") || | |
489 | (l = PyList_New(0)) == 0 || | |
490 | (i = PyObject_GetIter(me)) == 0) | |
491 | goto done; | |
492 | while ((k = PyIter_Next(i)) != 0) { | |
493 | z = 0; | |
494 | if ((v = PyObject_GetItem(me, k)) == 0 || | |
495 | (z = Py_BuildValue("(OO)", k, v)) == 0 || | |
496 | PyList_Append(l, z)) | |
497 | err = -1; | |
498 | Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z); | |
499 | if (err) goto done; | |
500 | } | |
501 | if (PyErr_Occurred()) goto done; | |
502 | rc = l; l = 0; | |
503 | done: | |
504 | Py_XDECREF(l); Py_XDECREF(i); | |
505 | return (rc); | |
506 | } | |
507 | ||
508 | PyObject *gmapmeth_iterkeys(PyObject *me, PyObject *arg) | |
509 | { | |
510 | if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0); | |
511 | return (PyObject_GetIter(me)); | |
512 | } | |
513 | ||
514 | PyObject *gmapmeth_itervalues(PyObject *me, PyObject *arg) | |
515 | { | |
516 | PyObject *i; | |
517 | iter_pyobj *ii; | |
518 | ||
519 | if (!PyArg_ParseTuple(arg, ":itervalues") || | |
520 | (i = PyObject_GetIter(me)) == 0) | |
521 | return (0); | |
522 | ii = PyObject_NEW(iter_pyobj, valiter_pytype); | |
523 | ii->map = me; Py_INCREF(me); | |
524 | ii->i = i; | |
525 | return ((PyObject *)ii); | |
526 | } | |
527 | ||
528 | PyObject *gmapmeth_iteritems(PyObject *me, PyObject *arg) | |
529 | { | |
530 | PyObject *i; | |
531 | iter_pyobj *ii; | |
532 | ||
533 | if (!PyArg_ParseTuple(arg, ":iteritems") || | |
534 | (i = PyObject_GetIter(me)) == 0) | |
535 | return (0); | |
536 | ii = PyObject_NEW(iter_pyobj, itemiter_pytype); | |
537 | ii->map = me; Py_INCREF(me); | |
538 | ii->i = i; | |
539 | return ((PyObject *)ii); | |
540 | } | |
541 | ||
542 | PyObject *gmapmeth_clear(PyObject *me, PyObject *arg) | |
543 | { | |
544 | PyObject *i = 0, *k = 0, *rc = 0; | |
545 | ||
546 | if (!PyArg_ParseTuple(arg, ":clear") || | |
547 | (i = PyObject_GetIter(me)) == 0) | |
548 | goto end; | |
549 | while ((k = PyIter_Next(i)) != 0) { | |
550 | PyObject_DelItem(me, k); | |
551 | Py_DECREF(k); | |
552 | } | |
553 | if (PyErr_Occurred()) goto end; | |
554 | rc = me; Py_INCREF(me); | |
555 | end: | |
556 | Py_XDECREF(i); | |
557 | return (rc); | |
558 | } | |
559 | ||
560 | static char *def_kwlist[] = { "key", "default", 0 }; | |
561 | ||
562 | PyObject *gmapmeth_get(PyObject *me, PyObject *arg, PyObject *kw) | |
563 | { | |
564 | PyObject *k, *def = Py_None, *v; | |
565 | ||
566 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def)) | |
567 | return (0); | |
568 | if ((v = PyObject_GetItem(me, k)) != 0) return (v); | |
569 | PyErr_Clear(); | |
570 | RETURN_OBJ(def); | |
571 | } | |
572 | ||
573 | PyObject *gmapmeth_setdefault(PyObject *me, PyObject *arg, PyObject *kw) | |
574 | { | |
575 | PyObject *k, *def = Py_None, *v; | |
576 | ||
577 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault", | |
578 | def_kwlist, &k, &def)) | |
579 | return (0); | |
580 | if ((v = PyObject_GetItem(me, k)) != 0) return (v); | |
581 | PyErr_Clear(); | |
582 | if (PyObject_SetItem(me, k, def)) return (0); | |
583 | RETURN_OBJ(def); | |
584 | } | |
585 | ||
586 | PyObject *gmapmeth_pop(PyObject *me, PyObject *arg, PyObject *kw) | |
587 | { | |
588 | PyObject *k, *def = 0, *v; | |
589 | ||
590 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def)) | |
591 | return (0); | |
592 | if ((v = PyObject_GetItem(me, k)) != 0) { | |
593 | PyObject_DelItem(me, k); | |
594 | return (v); | |
595 | } | |
596 | PyErr_Clear(); | |
597 | RETURN_OBJ(def); | |
598 | } | |
599 | ||
600 | PyObject *gmapmeth_update(PyObject *me, PyObject *arg) | |
601 | { | |
602 | PyObject *map, *i = 0, *k, *v, *rc = 0; | |
603 | int err = 0; | |
604 | ||
605 | if (!PyArg_ParseTuple(arg, "O:update", &map) || | |
606 | (i = PyObject_GetIter(map)) == 0) | |
607 | goto end; | |
608 | while ((k = PyIter_Next(i)) != 0) { | |
609 | if ((v = PyObject_GetItem(map, k)) == 0 || | |
610 | PyObject_SetItem(me, k, v)) | |
611 | err = -1; | |
612 | Py_DECREF(k); Py_XDECREF(v); | |
613 | if (err) goto end; | |
614 | } | |
615 | if (PyErr_Occurred()) goto end; | |
616 | rc = me; Py_INCREF(me); | |
617 | end: | |
618 | Py_XDECREF(i); | |
619 | return (rc); | |
620 | } | |
621 | ||
622 | PyObject *gmapmeth_popitem(PyObject *me, PyObject *arg) | |
623 | { | |
624 | PyObject *i = 0, *k = 0, *v = 0, *rc = 0; | |
625 | ||
626 | if (!PyArg_ParseTuple(arg, ":popitem") || | |
627 | (i = PyObject_GetIter(me))) | |
628 | goto end; | |
629 | if ((k = PyIter_Next(i)) == 0) { | |
630 | if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty"); | |
631 | goto end; | |
632 | } | |
633 | if ((v = PyObject_GetItem(me, k)) == 0 || | |
634 | PyObject_DelItem(me, k)) | |
635 | goto end; | |
636 | rc = Py_BuildValue("(OO)", k, v); | |
637 | end: | |
638 | Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v); | |
639 | return (rc); | |
640 | } | |
641 | ||
642 | PyMethodDef gmap_pymethods[] = { | |
643 | GMAP_METHODS | |
644 | { 0 } | |
645 | }; | |
646 | ||
647 | /*----- Initialization ----------------------------------------------------*/ | |
648 | ||
8ca23175 | 649 | void util_pyinit(void) |
68ec53f3 | 650 | { |
0156e402 | 651 | modname = PyString_FromString("catacomb"); |
68ec53f3 MW |
652 | INITTYPE(itemiter, root); |
653 | INITTYPE(valiter, root); | |
654 | } | |
655 | ||
8ca23175 | 656 | void util_pyinsert(PyObject *mod) |
68ec53f3 MW |
657 | { |
658 | INSERT("ItemIter", itemiter_pytype); | |
659 | INSERT("ValueIter", valiter_pytype); | |
660 | } | |
661 | ||
662 | /*----- That's all, folks -------------------------------------------------*/ |