3 ### Common mapping stuff
5 ### (c) 2005 Straylight/Edgeware
8 ###----- Licensing notice ---------------------------------------------------
10 ### This file is part of the Python interface to mLib.
12 ### mLib/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 ### mLib/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 mLib/Python; if not, write to the Free Software Foundation,
24 ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
28 cdef class _MapIterator:
34 ## Subclasses must implement these
35 cdef int _init(me) except -1:
36 raise TypeError, 'abstract class'
37 cdef void *_find(me, object key, unsigned *f) except NULL:
38 raise SystemError, 'unimplemented _find'
39 cdef object _key(me, void *e):
41 cdef object _value(me, void *e):
43 cdef void _setval(me, void *e, object val):
45 cdef void _del(me, void *e):
47 cdef _MapIterator _iter(me):
48 raise SystemError, 'unimplemented _iter'
51 def __cinit__(me, *hunoz, **hukairz):
53 def __init__(me, stuff = None, **kw):
57 def update(me, stuff = None, **kw):
61 elif hasattr(stuff, 'itemiter'):
62 for k, v in stuff.itemiter:
63 me._setval(me._find(k, &f), v)
64 elif hasattr(stuff, 'keys'):
65 for k in stuff.keys():
66 me._setval(me._find( k, &f), stuff[k])
69 me._setval(me._find(k, &f), v)
70 for k, v in kw.iteritems():
71 me._setval(me._find(k, &f), v)
75 def __getitem__(me, key):
77 e = me._find(key, NULL)
81 def __setitem__(me, key, value):
83 me._setval(me._find(key, &f), value)
84 def __delitem__(me, key):
91 def get(me, key, default = None):
93 e = me._find(key, NULL)
97 def setdefault(me, key, default = None):
100 e = me._find(key, &f)
104 me._setval(e, default)
106 def pop(me, key, default = None):
108 e = me._find(key, NULL)
120 raise ValueError, 'popitem(): table is empty'
121 return me._key(e), me._value(e)
124 cdef object _list(me, object (*func)(Mapping m, void *e)):
133 l.append(func(me, e))
137 return me._list(_map_key)
139 return me._list(_map_value)
141 return me._list(_map_item)
156 return MapKeyIter(me)
158 return MapKeyIter(me)
160 return MapValueIter(me)
162 return MapItemIter(me)
164 cdef class MapIterBase:
166 cdef object (*func)(Mapping m, void *e)
168 cdef int _init(me) except -1:
169 raise TypeError, 'abstract class'
180 return me.func(me.m, e)
181 cdef class MapKeyIter (MapIterBase):
182 cdef int _init(me) except -1:
185 cdef class MapValueIter (MapIterBase):
186 cdef int _init(me) except -1:
189 cdef class MapItemIter (MapIterBase):
190 cdef int _init(me) except -1:
194 cdef object _map_key(Mapping m, void *e):
196 cdef object _map_value(Mapping m, void *e):
198 cdef object _map_item(Mapping m, void *e):
199 return m._key(e), m._value(e)
201 ###----- That's all, folks --------------------------------------------------