Check if a symbol is a Chinese character.

    Note
    ----

    Taken from http://stackoverflow.com/questions/16441633/python-2-7-test-if-characters-in-a-string-are-all-chinese-characters

def is_chinese(name):
    """
    Check if a symbol is a Chinese character.

    Note
    ----

    Taken from http://stackoverflow.com/questions/16441633/python-2-7-test-if-characters-in-a-string-are-all-chinese-characters
    """
    if not name:
        return False
    for ch in name:
        ordch = ord(ch)
        if not (0x3400 <= ordch <= 0x9fff) and not (0x20000 <= ordch <= 0x2ceaf) \
                and not (0xf900 <= ordch <= ordch) and not (0x2f800 <= ordch <= 0x2fa1f): 
                return False
    return True