1 files changed, 25 insertions, 0 deletions
diff --git a/sphinx/addnodes.py b/sphinx/addnodes.py
index e6999bd16..56f23bba3 100644
--- a/sphinx/addnodes.py
+++ b/sphinx/addnodes.py
@@ -9,8 +9,12 @@
     :license: BSD, see LICENSE for details.
 """
 
+import warnings
+
 from docutils import nodes
 
+from sphinx.deprecation import RemovedInSphinx30Warning
+
 if False:
     # For type annotation
     from typing import List, Sequence  # NOQA
@@ -183,6 +187,27 @@ class production(nodes.Part, nodes.Inline, nodes.FixedTextElement):
     """Node for a single grammar production rule."""
 
 
+# math node
+
+
+class math(nodes.math):
+    """Node for inline equations.
+
+    .. deprecated:: 1.8
+       Use ``docutils.nodes.math`` instead.
+    """
+
+    def __getitem__(self, key):
+        """Special accessor for supporting ``node['latex']``."""
+        if key == 'latex' and 'latex' not in self.attributes:
+            warnings.warn("math node for Sphinx was replaced by docutils'. "
+                          "Therefore please use ``node.astext()`` to get an equation instead.",
+                          RemovedInSphinx30Warning)
+            return self.astext()
+        else:
+            return nodes.math.__getitem__(self, key)
+
+
 # other directive-level nodes
 
 class index(nodes.Invisible, nodes.Inline, nodes.TextElement):