Support markdown template for html editor

third_party/markdown/extensions/__init__.py

Index: third_party/markdown/extensions/__init__.py
diff --git a/third_party/markdown/extensions/__init__.py b/third_party/markdown/extensions/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..184c4d1b1da6001364c492ec1aba801af9096829
--- /dev/null
+++ b/third_party/markdown/extensions/__init__.py
@@ -0,0 +1,53 @@
+"""
+Extensions
+-----------------------------------------------------------------------------
+"""
+
+from __future__ import unicode_literals
+
+class Extension(object):
+    """ Base class for extensions to subclass. """
+    def __init__(self, configs = {}):
+        """Create an instance of an Extention.
+
+        Keyword arguments:
+
+        * configs: A dict of configuration setting used by an Extension.
+        """
+        self.config = configs
+
+    def getConfig(self, key, default=''):
+        """ Return a setting for the given key or an empty string. """
+        if key in self.config:
+            return self.config[key][0]
+        else:
+            return default
+
+    def getConfigs(self):
+        """ Return all configs settings as a dict. """
+        return dict([(key, self.getConfig(key)) for key in self.config.keys()])
+
+    def getConfigInfo(self):
+        """ Return all config descriptions as a list of tuples. """
+        return [(key, self.config[key][1]) for key in self.config.keys()]
+
+    def setConfig(self, key, value):
+        """ Set a config setting for `key` with the given `value`. """
+        self.config[key][0] = value
+
+    def extendMarkdown(self, md, md_globals):
+        """
+        Add the various proccesors and patterns to the Markdown Instance.
+
+        This method must be overriden by every extension.
+
+        Keyword arguments:
+
+        * md: The Markdown instance.
+
+        * md_globals: Global variables in the markdown module namespace.
+
+        """
+        raise NotImplementedError('Extension "%s.%s" must define an "extendMarkdown"' \
+            'method.' % (self.__class__.__module__, self.__class__.__name__))
+