mirror of
https://github.com/moparisthebest/SickRage
synced 2024-12-12 11:02:21 -05:00
83 lines
2.5 KiB
Python
83 lines
2.5 KiB
Python
from __future__ import absolute_import, division, unicode_literals
|
|
|
|
from types import ModuleType
|
|
|
|
try:
|
|
import xml.etree.cElementTree as default_etree
|
|
except ImportError:
|
|
import xml.etree.ElementTree as default_etree
|
|
|
|
|
|
__all__ = ["default_etree", "MethodDispatcher", "isSurrogatePair",
|
|
"surrogatePairToCodepoint", "moduleFactoryFactory"]
|
|
|
|
|
|
class MethodDispatcher(dict):
|
|
"""Dict with 2 special properties:
|
|
|
|
On initiation, keys that are lists, sets or tuples are converted to
|
|
multiple keys so accessing any one of the items in the original
|
|
list-like object returns the matching value
|
|
|
|
md = MethodDispatcher({("foo", "bar"):"baz"})
|
|
md["foo"] == "baz"
|
|
|
|
A default value which can be set through the default attribute.
|
|
"""
|
|
|
|
def __init__(self, items=()):
|
|
# Using _dictEntries instead of directly assigning to self is about
|
|
# twice as fast. Please do careful performance testing before changing
|
|
# anything here.
|
|
_dictEntries = []
|
|
for name, value in items:
|
|
if type(name) in (list, tuple, frozenset, set):
|
|
for item in name:
|
|
_dictEntries.append((item, value))
|
|
else:
|
|
_dictEntries.append((name, value))
|
|
dict.__init__(self, _dictEntries)
|
|
self.default = None
|
|
|
|
def __getitem__(self, key):
|
|
return dict.get(self, key, self.default)
|
|
|
|
|
|
# Some utility functions to dal with weirdness around UCS2 vs UCS4
|
|
# python builds
|
|
|
|
def isSurrogatePair(data):
|
|
return (len(data) == 2 and
|
|
ord(data[0]) >= 0xD800 and ord(data[0]) <= 0xDBFF and
|
|
ord(data[1]) >= 0xDC00 and ord(data[1]) <= 0xDFFF)
|
|
|
|
|
|
def surrogatePairToCodepoint(data):
|
|
char_val = (0x10000 + (ord(data[0]) - 0xD800) * 0x400 +
|
|
(ord(data[1]) - 0xDC00))
|
|
return char_val
|
|
|
|
# Module Factory Factory (no, this isn't Java, I know)
|
|
# Here to stop this being duplicated all over the place.
|
|
|
|
|
|
def moduleFactoryFactory(factory):
|
|
moduleCache = {}
|
|
|
|
def moduleFactory(baseModule, *args, **kwargs):
|
|
if isinstance(ModuleType.__name__, type("")):
|
|
name = "_%s_factory" % baseModule.__name__
|
|
else:
|
|
name = b"_%s_factory" % baseModule.__name__
|
|
|
|
if name in moduleCache:
|
|
return moduleCache[name]
|
|
else:
|
|
mod = ModuleType(name)
|
|
objs = factory(baseModule, *args, **kwargs)
|
|
mod.__dict__.update(objs)
|
|
moduleCache[name] = mod
|
|
return mod
|
|
|
|
return moduleFactory
|