mirror of
https://github.com/PiBrewing/craftbeerpi4.git
synced 2024-11-10 09:17:48 +01:00
515 lines
14 KiB
Python
515 lines
14 KiB
Python
import sys
|
|
from array import array
|
|
from collections import abc
|
|
|
|
from ._abc import MultiMapping, MutableMultiMapping
|
|
|
|
_marker = object()
|
|
|
|
|
|
class istr(str):
|
|
|
|
"""Case insensitive str."""
|
|
|
|
__is_istr__ = True
|
|
|
|
|
|
upstr = istr # for relaxing backward compatibility problems
|
|
|
|
|
|
def getversion(md):
|
|
if not isinstance(md, _Base):
|
|
raise TypeError("Parameter should be multidict or proxy")
|
|
return md._impl._version
|
|
|
|
|
|
_version = array("Q", [0])
|
|
|
|
|
|
class _Impl:
|
|
__slots__ = ("_items", "_version")
|
|
|
|
def __init__(self):
|
|
self._items = []
|
|
self.incr_version()
|
|
|
|
def incr_version(self):
|
|
global _version
|
|
v = _version
|
|
v[0] += 1
|
|
self._version = v[0]
|
|
|
|
if sys.implementation.name != "pypy":
|
|
|
|
def __sizeof__(self):
|
|
return object.__sizeof__(self) + sys.getsizeof(self._items)
|
|
|
|
|
|
class _Base:
|
|
def _title(self, key):
|
|
return key
|
|
|
|
def getall(self, key, default=_marker):
|
|
"""Return a list of all values matching the key."""
|
|
identity = self._title(key)
|
|
res = [v for i, k, v in self._impl._items if i == identity]
|
|
if res:
|
|
return res
|
|
if not res and default is not _marker:
|
|
return default
|
|
raise KeyError("Key not found: %r" % key)
|
|
|
|
def getone(self, key, default=_marker):
|
|
"""Get first value matching the key."""
|
|
identity = self._title(key)
|
|
for i, k, v in self._impl._items:
|
|
if i == identity:
|
|
return v
|
|
if default is not _marker:
|
|
return default
|
|
raise KeyError("Key not found: %r" % key)
|
|
|
|
# Mapping interface #
|
|
|
|
def __getitem__(self, key):
|
|
return self.getone(key)
|
|
|
|
def get(self, key, default=None):
|
|
"""Get first value matching the key.
|
|
|
|
The method is alias for .getone().
|
|
"""
|
|
return self.getone(key, default)
|
|
|
|
def __iter__(self):
|
|
return iter(self.keys())
|
|
|
|
def __len__(self):
|
|
return len(self._impl._items)
|
|
|
|
def keys(self):
|
|
"""Return a new view of the dictionary's keys."""
|
|
return _KeysView(self._impl)
|
|
|
|
def items(self):
|
|
"""Return a new view of the dictionary's items *(key, value) pairs)."""
|
|
return _ItemsView(self._impl)
|
|
|
|
def values(self):
|
|
"""Return a new view of the dictionary's values."""
|
|
return _ValuesView(self._impl)
|
|
|
|
def __eq__(self, other):
|
|
if not isinstance(other, abc.Mapping):
|
|
return NotImplemented
|
|
if isinstance(other, _Base):
|
|
lft = self._impl._items
|
|
rht = other._impl._items
|
|
if len(lft) != len(rht):
|
|
return False
|
|
for (i1, k2, v1), (i2, k2, v2) in zip(lft, rht):
|
|
if i1 != i2 or v1 != v2:
|
|
return False
|
|
return True
|
|
if len(self._impl._items) != len(other):
|
|
return False
|
|
for k, v in self.items():
|
|
nv = other.get(k, _marker)
|
|
if v != nv:
|
|
return False
|
|
return True
|
|
|
|
def __contains__(self, key):
|
|
identity = self._title(key)
|
|
for i, k, v in self._impl._items:
|
|
if i == identity:
|
|
return True
|
|
return False
|
|
|
|
def __repr__(self):
|
|
body = ", ".join("'{}': {!r}".format(k, v) for k, v in self.items())
|
|
return "<{}({})>".format(self.__class__.__name__, body)
|
|
|
|
|
|
class MultiDictProxy(_Base, MultiMapping):
|
|
"""Read-only proxy for MultiDict instance."""
|
|
|
|
def __init__(self, arg):
|
|
if not isinstance(arg, (MultiDict, MultiDictProxy)):
|
|
raise TypeError(
|
|
"ctor requires MultiDict or MultiDictProxy instance"
|
|
", not {}".format(type(arg))
|
|
)
|
|
|
|
self._impl = arg._impl
|
|
|
|
def __reduce__(self):
|
|
raise TypeError("can't pickle {} objects".format(self.__class__.__name__))
|
|
|
|
def copy(self):
|
|
"""Return a copy of itself."""
|
|
return MultiDict(self.items())
|
|
|
|
|
|
class CIMultiDictProxy(MultiDictProxy):
|
|
"""Read-only proxy for CIMultiDict instance."""
|
|
|
|
def __init__(self, arg):
|
|
if not isinstance(arg, (CIMultiDict, CIMultiDictProxy)):
|
|
raise TypeError(
|
|
"ctor requires CIMultiDict or CIMultiDictProxy instance"
|
|
", not {}".format(type(arg))
|
|
)
|
|
|
|
self._impl = arg._impl
|
|
|
|
def _title(self, key):
|
|
return key.title()
|
|
|
|
def copy(self):
|
|
"""Return a copy of itself."""
|
|
return CIMultiDict(self.items())
|
|
|
|
|
|
class MultiDict(_Base, MutableMultiMapping):
|
|
"""Dictionary with the support for duplicate keys."""
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
self._impl = _Impl()
|
|
|
|
self._extend(args, kwargs, self.__class__.__name__, self._extend_items)
|
|
|
|
if sys.implementation.name != "pypy":
|
|
|
|
def __sizeof__(self):
|
|
return object.__sizeof__(self) + sys.getsizeof(self._impl)
|
|
|
|
def __reduce__(self):
|
|
return (self.__class__, (list(self.items()),))
|
|
|
|
def _title(self, key):
|
|
return key
|
|
|
|
def _key(self, key):
|
|
if isinstance(key, str):
|
|
return key
|
|
else:
|
|
raise TypeError(
|
|
"MultiDict keys should be either str " "or subclasses of str"
|
|
)
|
|
|
|
def add(self, key, value):
|
|
identity = self._title(key)
|
|
self._impl._items.append((identity, self._key(key), value))
|
|
self._impl.incr_version()
|
|
|
|
def copy(self):
|
|
"""Return a copy of itself."""
|
|
cls = self.__class__
|
|
return cls(self.items())
|
|
|
|
__copy__ = copy
|
|
|
|
def extend(self, *args, **kwargs):
|
|
"""Extend current MultiDict with more values.
|
|
|
|
This method must be used instead of update.
|
|
"""
|
|
self._extend(args, kwargs, "extend", self._extend_items)
|
|
|
|
def _extend(self, args, kwargs, name, method):
|
|
if len(args) > 1:
|
|
raise TypeError(
|
|
"{} takes at most 1 positional argument"
|
|
" ({} given)".format(name, len(args))
|
|
)
|
|
if args:
|
|
arg = args[0]
|
|
if isinstance(args[0], (MultiDict, MultiDictProxy)) and not kwargs:
|
|
items = arg._impl._items
|
|
else:
|
|
if hasattr(arg, "items"):
|
|
arg = arg.items()
|
|
if kwargs:
|
|
arg = list(arg)
|
|
arg.extend(list(kwargs.items()))
|
|
items = []
|
|
for item in arg:
|
|
if not len(item) == 2:
|
|
raise TypeError(
|
|
"{} takes either dict or list of (key, value) "
|
|
"tuples".format(name)
|
|
)
|
|
items.append((self._title(item[0]), self._key(item[0]), item[1]))
|
|
|
|
method(items)
|
|
else:
|
|
method(
|
|
[
|
|
(self._title(key), self._key(key), value)
|
|
for key, value in kwargs.items()
|
|
]
|
|
)
|
|
|
|
def _extend_items(self, items):
|
|
for identity, key, value in items:
|
|
self.add(key, value)
|
|
|
|
def clear(self):
|
|
"""Remove all items from MultiDict."""
|
|
self._impl._items.clear()
|
|
self._impl.incr_version()
|
|
|
|
# Mapping interface #
|
|
|
|
def __setitem__(self, key, value):
|
|
self._replace(key, value)
|
|
|
|
def __delitem__(self, key):
|
|
identity = self._title(key)
|
|
items = self._impl._items
|
|
found = False
|
|
for i in range(len(items) - 1, -1, -1):
|
|
if items[i][0] == identity:
|
|
del items[i]
|
|
found = True
|
|
if not found:
|
|
raise KeyError(key)
|
|
else:
|
|
self._impl.incr_version()
|
|
|
|
def setdefault(self, key, default=None):
|
|
"""Return value for key, set value to default if key is not present."""
|
|
identity = self._title(key)
|
|
for i, k, v in self._impl._items:
|
|
if i == identity:
|
|
return v
|
|
self.add(key, default)
|
|
return default
|
|
|
|
def popone(self, key, default=_marker):
|
|
"""Remove specified key and return the corresponding value.
|
|
|
|
If key is not found, d is returned if given, otherwise
|
|
KeyError is raised.
|
|
|
|
"""
|
|
identity = self._title(key)
|
|
for i in range(len(self._impl._items)):
|
|
if self._impl._items[i][0] == identity:
|
|
value = self._impl._items[i][2]
|
|
del self._impl._items[i]
|
|
self._impl.incr_version()
|
|
return value
|
|
if default is _marker:
|
|
raise KeyError(key)
|
|
else:
|
|
return default
|
|
|
|
pop = popone # type: ignore
|
|
|
|
def popall(self, key, default=_marker):
|
|
"""Remove all occurrences of key and return the list of corresponding
|
|
values.
|
|
|
|
If key is not found, default is returned if given, otherwise
|
|
KeyError is raised.
|
|
|
|
"""
|
|
found = False
|
|
identity = self._title(key)
|
|
ret = []
|
|
for i in range(len(self._impl._items) - 1, -1, -1):
|
|
item = self._impl._items[i]
|
|
if item[0] == identity:
|
|
ret.append(item[2])
|
|
del self._impl._items[i]
|
|
self._impl.incr_version()
|
|
found = True
|
|
if not found:
|
|
if default is _marker:
|
|
raise KeyError(key)
|
|
else:
|
|
return default
|
|
else:
|
|
ret.reverse()
|
|
return ret
|
|
|
|
def popitem(self):
|
|
"""Remove and return an arbitrary (key, value) pair."""
|
|
if self._impl._items:
|
|
i = self._impl._items.pop(0)
|
|
self._impl.incr_version()
|
|
return i[1], i[2]
|
|
else:
|
|
raise KeyError("empty multidict")
|
|
|
|
def update(self, *args, **kwargs):
|
|
"""Update the dictionary from *other*, overwriting existing keys."""
|
|
self._extend(args, kwargs, "update", self._update_items)
|
|
|
|
def _update_items(self, items):
|
|
if not items:
|
|
return
|
|
used_keys = {}
|
|
for identity, key, value in items:
|
|
start = used_keys.get(identity, 0)
|
|
for i in range(start, len(self._impl._items)):
|
|
item = self._impl._items[i]
|
|
if item[0] == identity:
|
|
used_keys[identity] = i + 1
|
|
self._impl._items[i] = (identity, key, value)
|
|
break
|
|
else:
|
|
self._impl._items.append((identity, key, value))
|
|
used_keys[identity] = len(self._impl._items)
|
|
|
|
# drop tails
|
|
i = 0
|
|
while i < len(self._impl._items):
|
|
item = self._impl._items[i]
|
|
identity = item[0]
|
|
pos = used_keys.get(identity)
|
|
if pos is None:
|
|
i += 1
|
|
continue
|
|
if i >= pos:
|
|
del self._impl._items[i]
|
|
else:
|
|
i += 1
|
|
|
|
self._impl.incr_version()
|
|
|
|
def _replace(self, key, value):
|
|
key = self._key(key)
|
|
identity = self._title(key)
|
|
items = self._impl._items
|
|
|
|
for i in range(len(items)):
|
|
item = items[i]
|
|
if item[0] == identity:
|
|
items[i] = (identity, key, value)
|
|
# i points to last found item
|
|
rgt = i
|
|
self._impl.incr_version()
|
|
break
|
|
else:
|
|
self._impl._items.append((identity, key, value))
|
|
self._impl.incr_version()
|
|
return
|
|
|
|
# remove all tail items
|
|
i = rgt + 1
|
|
while i < len(items):
|
|
item = items[i]
|
|
if item[0] == identity:
|
|
del items[i]
|
|
else:
|
|
i += 1
|
|
|
|
|
|
class CIMultiDict(MultiDict):
|
|
"""Dictionary with the support for duplicate case-insensitive keys."""
|
|
|
|
def _title(self, key):
|
|
return key.title()
|
|
|
|
|
|
class _Iter:
|
|
__slots__ = ("_size", "_iter")
|
|
|
|
def __init__(self, size, iterator):
|
|
self._size = size
|
|
self._iter = iterator
|
|
|
|
def __iter__(self):
|
|
return self
|
|
|
|
def __next__(self):
|
|
return next(self._iter)
|
|
|
|
def __length_hint__(self):
|
|
return self._size
|
|
|
|
|
|
class _ViewBase:
|
|
def __init__(self, impl):
|
|
self._impl = impl
|
|
self._version = impl._version
|
|
|
|
def __len__(self):
|
|
return len(self._impl._items)
|
|
|
|
|
|
class _ItemsView(_ViewBase, abc.ItemsView):
|
|
def __contains__(self, item):
|
|
assert isinstance(item, tuple) or isinstance(item, list)
|
|
assert len(item) == 2
|
|
for i, k, v in self._impl._items:
|
|
if item[0] == k and item[1] == v:
|
|
return True
|
|
return False
|
|
|
|
def __iter__(self):
|
|
return _Iter(len(self), self._iter())
|
|
|
|
def _iter(self):
|
|
for i, k, v in self._impl._items:
|
|
if self._version != self._impl._version:
|
|
raise RuntimeError("Dictionary changed during iteration")
|
|
yield k, v
|
|
|
|
def __repr__(self):
|
|
lst = []
|
|
for item in self._impl._items:
|
|
lst.append("{!r}: {!r}".format(item[1], item[2]))
|
|
body = ", ".join(lst)
|
|
return "{}({})".format(self.__class__.__name__, body)
|
|
|
|
|
|
class _ValuesView(_ViewBase, abc.ValuesView):
|
|
def __contains__(self, value):
|
|
for item in self._impl._items:
|
|
if item[2] == value:
|
|
return True
|
|
return False
|
|
|
|
def __iter__(self):
|
|
return _Iter(len(self), self._iter())
|
|
|
|
def _iter(self):
|
|
for item in self._impl._items:
|
|
if self._version != self._impl._version:
|
|
raise RuntimeError("Dictionary changed during iteration")
|
|
yield item[2]
|
|
|
|
def __repr__(self):
|
|
lst = []
|
|
for item in self._impl._items:
|
|
lst.append("{!r}".format(item[2]))
|
|
body = ", ".join(lst)
|
|
return "{}({})".format(self.__class__.__name__, body)
|
|
|
|
|
|
class _KeysView(_ViewBase, abc.KeysView):
|
|
def __contains__(self, key):
|
|
for item in self._impl._items:
|
|
if item[1] == key:
|
|
return True
|
|
return False
|
|
|
|
def __iter__(self):
|
|
return _Iter(len(self), self._iter())
|
|
|
|
def _iter(self):
|
|
for item in self._impl._items:
|
|
if self._version != self._impl._version:
|
|
raise RuntimeError("Dictionary changed during iteration")
|
|
yield item[1]
|
|
|
|
def __repr__(self):
|
|
lst = []
|
|
for item in self._impl._items:
|
|
lst.append("{!r}".format(item[1]))
|
|
body = ", ".join(lst)
|
|
return "{}({})".format(self.__class__.__name__, body)
|