..
   Role for XML elements in the MJCF spec.
.. role:: el

..
   Role for the prefix of XML element names in the MJCF spec.
.. role:: el-prefix

..
   Role for XML attribute names in the MJCF spec.
.. role:: at

..
   Role for attribute value specs in MJCF spec.
.. role:: at-val

..
   Role for pretty-printed inline C/C++ code.
.. role:: cpp(code)
   :language: C++

..
   Role for pretty-printed inline Python code.
.. role:: python(code)
   :language: Python

..
   Role for pretty-printed inline shell code.
.. role:: shell(code)
   :language: bash