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# -*- coding: utf-8 -*-
"""
sphinx.ext.mathjax
~~~~~~~~~~~~~~~~~~
Allow `MathJax <http://mathjax.org/>`_ to be used to display math in
Sphinx's HTML writer -- requires the MathJax JavaScript library on your
webserver/computer.
:copyright: Copyright 2007-2014 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):
self.body.append(self.starttag(node, 'span', '', CLASS='math'))
self.body.append(self.builder.config.mathjax_inline[0] +
self.encode(node['latex']) +
self.builder.config.mathjax_inline[1] + '</span>')
raise nodes.SkipNode
def html_visit_displaymath(self, node):
self.body.append(self.starttag(node, 'div', CLASS='math'))
if node['nowrap']:
self.body.append(self.builder.config.mathjax_display[0] +
node['latex'] +
self.builder.config.mathjax_display[1])
self.body.append('</div>')
raise nodes.SkipNode
parts = [prt for prt in node['latex'].split('\n\n') if prt.strip()]
for i, part in enumerate(parts):
part = self.encode(part)
if i == 0:
# necessary to e.g. set the id property correctly
if node['number']:
self.body.append('<span class="eqno">(%s)</span>' %
node['number'])
if '&' in part or '\\\\' in part:
self.body.append(self.builder.config.mathjax_display[0] +
'\\begin{split}' + part + '\\end{split}' +
self.builder.config.mathjax_display[1])
else:
self.body.append(self.builder.config.mathjax_display[0] + part +
self.builder.config.mathjax_display[1])
self.body.append('</div>\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)
def setup(app):
mathbase_setup(app, (html_visit_math, None), (html_visit_displaymath, None))
app.add_config_value('mathjax_path',
'http://cdn.mathjax.org/mathjax/latest/MathJax.js?'
'config=TeX-AMS-MML_HTMLorMML', False)
app.add_config_value('mathjax_inline', [r'\(', r'\)'], 'html')
app.add_config_value('mathjax_display', [r'\[', r'\]'], 'html')
app.connect('builder-inited', builder_inited)
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