import re


def strip_content_in_paren(string):
    """
    Notes:
        strip_content_in_paren cannot process nested paren correctly
    """
    return re.sub(r"\([^)]*\)|（[^）]*）", "", string)


def is_chinese_char(uchar: str) -> bool:
    """Whether the input char is a Chinese character.

    Args:
        uchar: input char in unicode

    References:
        `is_chinese_char` in https://github.com/thunlp/OpenNRE/
    """
    codepoint = ord(uchar)
    if ((0x4E00 <= codepoint <= 0x9FFF) or # CJK Unified Ideographs
        (0x3400 <= codepoint <= 0x4DBF) or # CJK Unified Ideographs Extension A
        (0xF900 <= codepoint <= 0xFAFF) or # CJK Compatibility Ideographs
        (0x20000 <= codepoint <= 0x2A6DF) or # CJK Unified Ideographs Extension B
        (0x2A700 <= codepoint <= 0x2B73F) or
        (0x2B740 <= codepoint <= 0x2B81F) or
        (0x2B820 <= codepoint <= 0x2CEAF) or
        (0x2F800 <= codepoint <= 0x2FA1F)): # CJK Compatibility Supplement
        return True
    return False