utils.py 文件源码

def safe_text_for_markdown(text):
    """Clean the text using bleach but keep certain Markdown sections.

    Markdown code ie ` or ``` combos. For single `, do not allow line breaks between the tag.
    Quotes ie '> ' which bleach would clean up.
    """
    code_blocks, text = code_blocks_add_markers(text)
    # Store quotes next
    text = re.sub(r"(^> )", "%%safe_quote_in_start%%", text)
    text = re.sub(r"(\n> )", "%%safe_quote_in_new_line%%", text, flags=re.DOTALL)
    # Nuke all html, scripts, etc
    text = bleach.clean(text or "")
    # Return quotes
    text = text.replace("%%safe_quote_in_start%%", "> ")
    text = text.replace("%%safe_quote_in_new_line%%", "\n> ")
    text = code_blocks_restore(code_blocks, text)
    return text