Show upper methods and classes

[Guettli-users]

Hi,

this patch shows the upper methods and classes and binds
this to C-c C-x

Example:
class Foo:
    def blu():
        def subblu():
            print "foo"
if you press C-c C-x in the last line you see
Foo/blu/subblu/

This is handy if you query-replace in a long method and
you want to be sure that you are still in this method
and not in the next

Tested with XEmacs 21.4 and Emacs 21.3.1

I tried to bind this into the mode-line, but failed.
This would
be better since you could see all the time in which methods
and classes the cursor is.

[http://sourceforge.net/tracker/index.php?func=detail&aid=1077902&group_id=86916&atid=581351]

[Montanaro (montanaro)]

I'm working on this. I noticed a number of changes of "iff"
to "if". Just
checking to make sure you're aware that in English "iff" is
a shorthand
for "if and only if". If you were just correcting spelling,
I'll reword those
comments to not rely on idiomatic English.

[Theller-users (theller-users)]

FYI: func-menu (included with XEmacs) does something
similar, and also works for other languages. It also
displays the function or class/method the cursor is in in
the mode-line.

[Montanaro (montanaro)]

I'm going to go with func-menu for now. Its nested function display
isn't perfect, but I suspect it can be fixed, and if so, would probably
help a broader community than just folks using Python.