Hello,
I've tried to write a MathJax extension, but I've run into the
following problem: MathJax needs a non-empty script tag whose contents
are used for configuration options. For example, the script tag could
look like this:
<script type="text/javascript" src="/MathJax/MathJax.js">
MathJax.Hub.Config({
config: ["MMLorHTML.js"],
extensions: [],
jax: ["input/TeX"],
MMLorHTML: {prefer: "MML"}
});
</script>
if the preprocessor should be disabled (which is reasonable because
Sphinx replaces the preprocessor), and MathML output should be used if
possible (increases speed in Firefox). But add_javascript doesn't seem
to let one specify these contents. Also, I don't know how to implement
the nowrap option or numbered equations, maybe someone with a better
understanding of Sphinx and MathJax could help out. This is my first
attempt (untested because of the configuration problem):
# -*- coding: utf-8 -*-
"""
sphinx.ext.mathjax
~~~~~~~~~~~~~~~~~~
Set up everything for use of MathJax to display math in HTML
via JavaScript.
:copyright: Copyright 2007-2010 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from docutils import nodes
from sphinx.application import ExtensionError
from sphinx.ext.mathbase import setup_math as mathbase_setup
def html_visit_math(self, node):
code = self.encode(node['latex'])
self.body.append(self.starttag(node, 'span',
CLASS='MathJax_Preview'))
self.body.append(code + '</span>')
self.body.append(self.starttag(node, 'script', TYPE='math/tex'))
self.body.append(code + '</script>')
raise nodes.SkipNode
def html_visit_displaymath(self, node):
if node['nowrap'] or node['number']:
# TODO: how to implement this
raise NotImplementedError
code = self.encode(node['latex'])
self.body.append(self.starttag(node, 'span',
CLASS='MathJax_Preview'))
self.body.append(code + '</span>')
self.body.append(self.starttag(node, 'script',
TYPE='math/tex; mode=display'))
self.body.append(code + '</script>\n')
raise nodes.SkipNode
def builder_inited(app):
if not app.config.mathjax_path:
raise ExtensionError('mathjax_path config value must be set
for the '
'mathjax extension to work')
app.add_javascript(app.config.mathjax_path)
# TODO: MathJax needs a non-empty script tag
def setup(app):
mathbase_setup(app, (html_visit_math, None),
(html_visit_displaymath, None))
app.add_config_value('mathjax_path', '', False)
app.connect('builder-inited', builder_inited)
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