from guppy.sets.setsc import BitSet # base bitset type
from guppy.sets.setsc import ImmBitSet # immutable bitset type
from guppy.sets.setsc import immbit # immutable bitset singleton constructor
from guppy.sets.setsc import immbitrange # immutable bitset range constructor
from guppy.sets.setsc import immbitset # immutable bitset constructor
from guppy.sets.setsc import MutBitSet # mutable bitset
from guppy.sets.setsc import NodeSet # base nodeset type
from guppy.sets.setsc import ImmNodeSet # immmutable nodeset type
from guppy.sets.setsc import MutNodeSet # mutable nodeset type
from .setsc import _bs
_bs.__module__ = 'guppy.sets' # ..to be able to set it.
# Define some constructors.
# Constructor names are lower case.
# Some constructors are equal to types.
# But this connection depends on the implementation.
# So one may wish the user to not depend on this.
mutbitset = MutBitSet
immnodeset = ImmNodeSet
mutnodeset = MutNodeSet
def mutnodeset_union(iterable):
"Return a mutable nodeset which is the union of all nodesets in iterable."
set = mutnodeset()
for it in iterable:
set |= it
return set
def immnodeset_union(iterable, *args):
"Return an immmutable nodeset which is the union of all nodesets in iterable."
set = mutnodeset_union(iterable)
return immnodeset(set, *args)
# Make attributes assignable by reading one;
# this is getting around a bug in Python 2.3.3
# and should be harmless in any version.
try:
mutnodeset()._hiding_tag_
except AttributeError:
pass
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