#!/usr/bin/env python3
#   encoding: utf-8

# This is part of the Balladeer library.
# Copyright (C) 2024 D E Haynes

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

import re

class Presenter:

    href_matcher = re.compile('(?P<href>href\\s*=\\s*"[^"]*?")(?=\\s*>)')

    def sanitize(self, html5: str) -> str:
        html5 = self.href_matcher.sub('\g<href> target="_blank" rel="noopener noreferrer"', html5)
        return html5
