Added the :mod:`sphinx.ext.mathjax` extension, based on

https://bitbucket.org/kevindunn/sphinx-extension-mathjax/ by Kevin Dunn.

1 files changed, 67 insertions, 0 deletions

diff --git a/sphinx/ext/mathjax.py b/sphinx/ext/mathjax.py
new file mode 100644
index 000000000..e8d2d4851
--- /dev/null
+++ b/sphinx/ext/mathjax.py
@@ -0,0 +1,67 @@
+# -*- 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 2007-2011 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', '', 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)
+