blob: ee2658939ff11e57f2a6ba6a8609c3341924280f [file] [log] [blame]
Guido van Rossum4acc25b2000-02-02 15:10:15 +00001"""A more or less complete user-defined wrapper around list objects."""
Guido van Rossumae3b3a31993-11-30 13:43:54 +00002
3class UserList:
Jeremy Hylton6a973c72000-03-31 00:17:46 +00004 def __init__(self, initlist=None):
Guido van Rossum2a340b31999-03-26 16:20:18 +00005 self.data = []
Jeremy Hylton6a973c72000-03-31 00:17:46 +00006 if initlist is not None:
Thomas Wouters7e474022000-07-16 12:04:32 +00007 # XXX should this accept an arbitrary sequence?
Jeremy Hylton6a973c72000-03-31 00:17:46 +00008 if type(initlist) == type(self.data):
9 self.data[:] = initlist
10 elif isinstance(initlist, UserList):
11 self.data[:] = initlist.data[:]
Guido van Rossum2a340b31999-03-26 16:20:18 +000012 else:
Jeremy Hylton6a973c72000-03-31 00:17:46 +000013 self.data = list(initlist)
Guido van Rossum2a340b31999-03-26 16:20:18 +000014 def __repr__(self): return repr(self.data)
Guido van Rossum753a68e2001-01-18 16:09:55 +000015 def __lt__(self, other): return self.data < self.__cast(other)
16 def __le__(self, other): return self.data <= self.__cast(other)
17 def __eq__(self, other): return self.data == self.__cast(other)
18 def __ne__(self, other): return self.data != self.__cast(other)
19 def __gt__(self, other): return self.data > self.__cast(other)
20 def __ge__(self, other): return self.data >= self.__cast(other)
21 def __cast(self, other):
22 if isinstance(other, UserList): return other.data
23 else: return other
Guido van Rossum2a340b31999-03-26 16:20:18 +000024 def __cmp__(self, other):
Guido van Rossum753a68e2001-01-18 16:09:55 +000025 raise RuntimeError, "UserList.__cmp__() is obsolete"
Tim Peters7b393fc2000-09-19 20:29:03 +000026 def __contains__(self, item): return item in self.data
Guido van Rossum2a340b31999-03-26 16:20:18 +000027 def __len__(self): return len(self.data)
28 def __getitem__(self, i): return self.data[i]
29 def __setitem__(self, i, item): self.data[i] = item
30 def __delitem__(self, i): del self.data[i]
31 def __getslice__(self, i, j):
32 i = max(i, 0); j = max(j, 0)
Fred Drakecc773d32000-10-06 19:26:01 +000033 return self.__class__(self.data[i:j])
Guido van Rossum2a340b31999-03-26 16:20:18 +000034 def __setslice__(self, i, j, other):
35 i = max(i, 0); j = max(j, 0)
36 if isinstance(other, UserList):
37 self.data[i:j] = other.data
38 elif isinstance(other, type(self.data)):
39 self.data[i:j] = other
40 else:
41 self.data[i:j] = list(other)
42 def __delslice__(self, i, j):
43 i = max(i, 0); j = max(j, 0)
44 del self.data[i:j]
45 def __add__(self, other):
46 if isinstance(other, UserList):
47 return self.__class__(self.data + other.data)
48 elif isinstance(other, type(self.data)):
49 return self.__class__(self.data + other)
50 else:
51 return self.__class__(self.data + list(other))
52 def __radd__(self, other):
53 if isinstance(other, UserList):
54 return self.__class__(other.data + self.data)
55 elif isinstance(other, type(self.data)):
56 return self.__class__(other + self.data)
57 else:
58 return self.__class__(list(other) + self.data)
Thomas Wouters104a7bc2000-08-24 20:14:10 +000059 def __iadd__(self, other):
60 if isinstance(other, UserList):
61 self.data += other.data
62 elif isinstance(other, type(self.data)):
63 self.data += other
64 else:
65 self.data += list(other)
66 return self
Guido van Rossum2a340b31999-03-26 16:20:18 +000067 def __mul__(self, n):
68 return self.__class__(self.data*n)
69 __rmul__ = __mul__
Thomas Wouters104a7bc2000-08-24 20:14:10 +000070 def __imul__(self, n):
71 self.data *= n
72 return self
Guido van Rossum2a340b31999-03-26 16:20:18 +000073 def append(self, item): self.data.append(item)
74 def insert(self, i, item): self.data.insert(i, item)
75 def pop(self, i=-1): return self.data.pop(i)
76 def remove(self, item): self.data.remove(item)
77 def count(self, item): return self.data.count(item)
78 def index(self, item): return self.data.index(item)
79 def reverse(self): self.data.reverse()
80 def sort(self, *args): apply(self.data.sort, args)
81 def extend(self, other):
82 if isinstance(other, UserList):
83 self.data.extend(other.data)
84 else:
85 self.data.extend(other)