MinerU/magic_pdf/libs/markdown_utils.py

def ocr_escape_special_markdown_char(content):
    """
    转义正文里对markdown语法有特殊意义的字符
    """
    special_chars = ["*", "`", "~", "$"]
    for char in special_chars:
        content = content.replace(char, "\\" + char)

    return content