tools_reverse.py

import re

def flip_hidden(question):
    # Reverse only the text before '.rewsna' if present
    match = re.search(r'^(.*)\.rewsna', question)
    if match:
        to_flip = match.group(1)
        return to_flip[::-1].strip()
    # Fallback: reverse the whole string
    return question[::-1]