def from_stream(cls, stream, offset=None, byte_order=LITTLE_ENDIAN):
"""Creates a :class:`LCID` object from a stream.
:type stream: :class:`lf.dec.IStream`
:param stream: A stream that contains the LCID structure.
:type offset: ``int`` or ``None``
:param offset: The start of the LCID structure in the stream.
:type byte_order: constant
:param byte_order: The byte order to use (from :mod:`lf.dtypes`)
:rtype: :class:`LCID`
:returns: The extracted :class:`LCID` object.
"""
if offset is not None:
stream.seek(offset, SEEK_SET)
# end if
data = stream.read(4)
if byte_order == LITTLE_ENDIAN:
lcid = lcid_le.from_buffer_copy(data)
else:
lcid = lcid_be.from_buffer_copy(data)
# end if
return LCID((lcid.lang_id, lcid.sort_id, lcid.rsvd))
def test_from_ctype(self):
ae = self.assertEqual
data = b"\x07\x04\xE1\x9C"
lcid = LCID.from_ctype(lcid_le.from_buffer_copy(data))
lcid = LCID.from_ctype(lcid)
ae(lcid.rsvd, 0x9CE)
ae(lcid.sort_id, 1)
ae(lcid.lang_id, 0x0407)
def test_from_ctype(self):
ae = self.assertEqual
data = b"\x07\x04\xE1\x9C"
lcid = LCID.from_ctype(lcid_le.from_buffer_copy(data))
lcid = LCID.from_ctype(lcid)
ae(lcid.rsvd, 0x9CE)
ae(lcid.sort_id, 1)
ae(lcid.lang_id, 0x0407)
