70 lines
2.1 KiB
Python
70 lines
2.1 KiB
Python
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# Sane List Extension for Python-Markdown
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# =======================================
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# Modify the behavior of Lists in Python-Markdown to act in a sane manor.
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# See https://Python-Markdown.github.io/extensions/sane_lists
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# for documentation.
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# Original code Copyright 2011 [Waylan Limberg](http://achinghead.com)
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# All changes Copyright 2011-2014 The Python Markdown Project
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# License: [BSD](https://opensource.org/licenses/bsd-license.php)
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"""
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Modify the behavior of Lists in Python-Markdown to act in a sane manor.
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See [documentation](https://Python-Markdown.github.io/extensions/sane_lists)
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for details.
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"""
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from __future__ import annotations
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from . import Extension
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from ..blockprocessors import OListProcessor, UListProcessor
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import re
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from typing import TYPE_CHECKING
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if TYPE_CHECKING: # pragma: no cover
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from .. import blockparser
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class SaneOListProcessor(OListProcessor):
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""" Override `SIBLING_TAGS` to not include `ul` and set `LAZY_OL` to `False`. """
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SIBLING_TAGS = ['ol']
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""" Exclude `ul` from list of siblings. """
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LAZY_OL = False
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""" Disable lazy list behavior. """
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def __init__(self, parser: blockparser.BlockParser):
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super().__init__(parser)
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self.CHILD_RE = re.compile(r'^[ ]{0,%d}((\d+\.))[ ]+(.*)' %
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(self.tab_length - 1))
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class SaneUListProcessor(UListProcessor):
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""" Override `SIBLING_TAGS` to not include `ol`. """
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SIBLING_TAGS = ['ul']
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""" Exclude `ol` from list of siblings. """
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def __init__(self, parser: blockparser.BlockParser):
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super().__init__(parser)
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self.CHILD_RE = re.compile(r'^[ ]{0,%d}(([*+-]))[ ]+(.*)' %
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(self.tab_length - 1))
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class SaneListExtension(Extension):
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""" Add sane lists to Markdown. """
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def extendMarkdown(self, md):
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""" Override existing Processors. """
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md.parser.blockprocessors.register(SaneOListProcessor(md.parser), 'olist', 40)
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md.parser.blockprocessors.register(SaneUListProcessor(md.parser), 'ulist', 30)
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def makeExtension(**kwargs): # pragma: no cover
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return SaneListExtension(**kwargs)
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