92 lines
3.0 KiB
Python
92 lines
3.0 KiB
Python
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"""
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Mark.
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pymdownx.mark
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Really simple plugin to add support for
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<mark>test</mark> tags as ==test==
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MIT license.
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Copyright (c) 2014 - 2017 Isaac Muse <isaacmuse@gmail.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
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documentation files (the "Software"), to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
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and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions
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of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
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TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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"""
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import re
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from markdown import Extension
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from markdown.inlinepatterns import SimpleTextInlineProcessor
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from . import util
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SMART_CONTENT = r'((?:(?<=\s)=+?(?=\s)|.)+?=*?)'
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CONTENT = r'((?:[^=]|(?<!={2})=)+?)'
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# Avoid starting a pattern with caret tokens that are surrounded by white space.
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NOT_MARK = r'((^|(?<=\s))(=+)(?=\s|$))'
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# ==mark==
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MARK = r'(={2})(?!\s)%s(?<!\s)\1' % CONTENT
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# ==mark==
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SMART_MARK = r'(?:(?<=_)|(?<![\w=]))(={2})(?![\s=])%s(?<!\s)\1(?:(?=_)|(?![\w=]))' % SMART_CONTENT
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class MarkProcessor(util.PatternSequenceProcessor):
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"""Handle mark patterns."""
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PATTERNS = [
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util.PatSeqItem(re.compile(MARK, re.DOTALL | re.UNICODE), 'single', 'mark')
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]
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class MarkSmartProcessor(util.PatternSequenceProcessor):
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"""Handle smart mark patterns."""
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PATTERNS = [
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util.PatSeqItem(re.compile(SMART_MARK, re.DOTALL | re.UNICODE), 'single', 'mark')
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]
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class MarkExtension(Extension):
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"""Add the mark extension to Markdown class."""
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def __init__(self, *args, **kwargs):
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"""Initialize."""
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self.config = {
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'smart_mark': [True, "Treat ==connected==words== intelligently - Default: True"]
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}
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super().__init__(*args, **kwargs)
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def extendMarkdown(self, md):
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"""Insert `<mark>test</mark>` tags as `==test==`."""
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config = self.getConfigs()
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smart = bool(config.get('smart_mark', True))
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md.registerExtension(self)
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escape_chars = []
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escape_chars.append('=')
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util.escape_chars(md, escape_chars)
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md.inlinePatterns.register(SimpleTextInlineProcessor(NOT_MARK), 'not_tilde', 70)
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mark = MarkSmartProcessor(r'=') if smart else MarkProcessor(r'=')
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md.inlinePatterns.register(mark, "mark", 65)
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def makeExtension(*args, **kwargs):
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"""Return extension."""
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return MarkExtension(*args, **kwargs)
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