We no longer have two doc systems, move sphinx_doc_src back to doc_src

doc_src/cmds/funced.rst

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+.. _cmd-funced:
+
+funced - edit a function interactively
+======================================
+
+Synopsis
+--------
+
+::
+
+    funced [OPTIONS] NAME
+
+Description
+-----------
+
+``funced`` provides an interface to edit the definition of the function ``NAME``.
+
+If the ``$VISUAL`` environment variable is set, it will be used as the program to edit the function. If ``$VISUAL`` is unset but ``$EDITOR`` is set, that will be used. Otherwise, a built-in editor will be used. Note that to enter a literal newline using the built-in editor you should press :kbd:`Alt+Enter`. Pressing :kbd:`Enter` signals that you are done editing the function. This does not apply to an external editor like emacs or vim.
+
+If there is no function called ``NAME`` a new function will be created with the specified name
+
+- ``-e command`` or ``--editor command`` Open the function body inside the text editor given by the command (for example, ``-e vi``). The special command ``fish`` will use the built-in editor (same as specifying ``-i``).
+
+- ``-i`` or ``--interactive`` Force opening the function body in the built-in editor even if ``$VISUAL`` or ``$EDITOR`` is defined.
+
+- ``-s`` or ``--save`` Automatically save the function after successfully editing it.