try:
    import regex as re
except ImportError:
    import re

__all__ = ("remove_rich_tag",)

reich_pattern = r"(<(?P<tag_name>[a-z]+?)=(?P<value>.+?)>.+?</(?P=tag_name)>)"


def remove_rich_tag(string: str | None) -> str:
    """去除富文本标签"""
    if string is not None:
        return re.sub(reich_pattern, "", string)