def appendCodePoint(self, ch):
"""
:type string: int
:rtype pyjline.javautils.StringBuilder
"""
if Character.isBmpCodePoint(ch):
self.string += unichr(ch)
elif Character.isValidCodePoint(ch):
self.string += unichr(Character.highSurrogate(ch))
self.string += unichr(Character.lowSurrogate(ch))
else:
# TODO: EXCEPTION
pass
return self
