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"""
Provides MathJax support for rendering Markdown with LaTeX to html.
"""
from mistletoe.html_renderer import HtmlRenderer
from mistletoe.latex_renderer import LaTeXRenderer
class MathJaxRenderer(HtmlRenderer, LaTeXRenderer):
def __init__(self, **kwargs):
"""
Args:
**kwargs: additional parameters to be passed to the ancestors'
constructors.
"""
super().__init__(**kwargs)
mathjax_src = '<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-MML-AM_CHTML"></script>\n'
def render_math(self, token):
"""
Convert single dollar sign enclosed math expressions to the ``\\(...\\)`` syntax, to support
the default MathJax settings which ignore single dollar signs as described at
https://docs.mathjax.org/en/latest/basic/mathematics.html#tex-and-latex-input.
"""
if token.content.startswith('$$'):
return self.render_raw_text(token)
return '\\({}\\)'.format(self.render_raw_text(token).strip('$'))
def render_document(self, token):
"""
Append CDN link for MathJax to the end of <body>.
"""
return super().render_document(token) + self.mathjax_src
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