From 609c05ae2ad02751dd72823fc738c3751362a24c Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Sun, 24 Aug 2014 00:19:59 -0500
Subject: [PATCH] Make Mathjax and Markdown get along
---
course/content.py | 2 ++
course/mdx_mathjax.py | 32 ++++++++++++++++++++++++++++++++
2 files changed, 34 insertions(+)
create mode 100644 course/mdx_mathjax.py
diff --git a/course/content.py b/course/content.py
index ec237219..c8cdd493 100644
--- a/course/content.py
+++ b/course/content.py
@@ -330,10 +330,12 @@ def markup_to_html(course, repo, commit_sha, text):
template = env.from_string(text)
text = template.render()
+ from course.mdx_mathjax import MathJaxExtension
import markdown
return markdown.markdown(text,
extensions=[
LinkFixerExtension(course, commit_sha),
+ MathJaxExtension(),
"extra",
],
output_format="html5")
diff --git a/course/mdx_mathjax.py b/course/mdx_mathjax.py
new file mode 100644
index 00000000..89de7904
--- /dev/null
+++ b/course/mdx_mathjax.py
@@ -0,0 +1,32 @@
+# Downloaded from https://github.com/mayoff/python-markdown-mathjax/issues/3
+
+import markdown
+from markdown.postprocessors import Postprocessor
+
+
+class MathJaxPattern(markdown.inlinepatterns.Pattern):
+ def __init__(self):
+ markdown.inlinepatterns.Pattern.__init__(self, r'(?<!\\)(\$\$?)(.+?)\2')
+
+ def handleMatch(self, m):
+ node = markdown.util.etree.Element('mathjax')
+ node.text = markdown.util.AtomicString(m.group(2) + m.group(3) + m.group(2))
+ return node
+
+
+class MathJaxPostprocessor(Postprocessor):
+ def run(self, text):
+ text = text.replace('<mathjax>', '')
+ text = text.replace('</mathjax>', '')
+ return text
+
+
+class MathJaxExtension(markdown.Extension):
+ def extendMarkdown(self, md, md_globals):
+ # Needs to come before escape matching because \ is pretty important in LaTeX
+ md.inlinePatterns.add('mathjax', MathJaxPattern(), '<escape')
+ md.postprocessors['mathjax'] = MathJaxPostprocessor(md)
+
+
+def makeExtension(configs=None):
+ return MathJaxExtension(configs)
--
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