"""
Copyright 2011, 2012 The Active Archives contributors
Copyright 2011, 2012 Alexandre Leray
Copyright 2020 Honza Javorek <https://honzajavorek.cz>

All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

3. Neither the name of the <organization> nor the names of its contributors may
   be used to endorse or promote products derived from this software without
   specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE PYTHON MARKDOWN PROJECT ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL ANY CONTRIBUTORS TO THE PYTHON MARKDOWN PROJECT
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""

from . import Extension
from ..inlinepatterns import SimpleTagInlineProcessor

class DelInsExtension(Extension):
    def extendMarkdown(self, md):
        del_proc = SimpleTagInlineProcessor(r'(\~\~)(.+?)(\~\~)', 'del')
        md.inlinePatterns.register(del_proc, 'del', 200)

        ins_proc = SimpleTagInlineProcessor(r'(\+\+)(.+?)(\+\+)', 'ins')
        md.inlinePatterns.register(ins_proc, 'ins', 200)

def makeExtension(**kwargs):
    return DelInsExtension(**kwargs)

if __name__ == '__main__':
    import doctest
    doctest.testfile('README.md')
