translate.py 文件源码

def _unescape(text):
    """Unescape unicode character codes within a string.
    """
    pattern = r'\\{1,2}u[0-9a-fA-F]{4}'
    decode = lambda x: codecs.getdecoder('unicode_escape')(x.group())[0]
    return re.sub(pattern, decode, text)