Determining the current class

[Ytrewq1]

I'd like some way to easily determine the class that
the Emacs point is in. I looked for a way but didn't
find anything relevant.

For the moment, I've put together something that
attempts to determine the current class and display it
via the echo area. Code follows:

(defun py-show-current-class ()
  (interactive)
  (save-excursion
    (let ((class-name nil))
      (if (py-go-up-tree-to-keyword "class")
          (setq class-name (py-current-defun))
        (setq class-name "None determined"))
      (message (format "Current class: %s" class-name)))))

P.S. I thought of working with which-function-mode, but
the mode line seems too crowded already.

[http://sourceforge.net/tracker/index.php?func=detail&aid=1096977&group_id=86916&atid=581352]

[Ytrewq1 (ytrewq1)]

I just learned about header-line-format in Emacs 21 --
perhaps the current class can be displayed there.

[Montanaro (montanaro)]

Have you taken a look at Emacs' func-menu package? It's a start,
though I don't think it handles nested scopes. If you were to come
up with a patch for it, it would probably help beyond Python.

(Sorry for the delay responding. I didn't know about this tracker.)

Skip

[Ytrewq1 (ytrewq1)]

I didn't know about func-menu -- are you
referring to the following?

http://media.wu-wien.ac.at/emacs/func-menu.el

FWIW, since I submitted this report, I've done a
copy-modify job [1] on which-func and created
which-class.el. Using this, the current class
name and function name are displayed in the
header line (at least for Python). I've found
that being able to determine which class and
function point is in at a glance (w/o having
to enter any command) is quite nice.

[1] Yes, a patch would have been nice but
which-func seemed very mode-line-specific...

[Andreas Roehler (a-roehler)]

Hi,

re-enabled py-current-defun

Returns the name, as required.

In order to meet the request here,
it jumps to the definition --when customized, wait a customizable delay-- jumps back.

When interactively called, resp. with optional arg, name is printed in the message-buffer.

(defcustom py-which-func-show t
 "If `py-current-defun' should jump to the definition, highlight it while waiting PY-WHICH-FUNC-DELAY seconds, before returning to previous position.

Default is `t'."

:type 'boolean
:group 'python)

(defcustom py-which-func-delay 2
 "When called interactively, `py-current-defun' should wait PY-WHICH-FUNC-DELAY seconds at the definition name found, before returning to previous position. "

:type 'number
:group 'python)

BTW which-func-mode also should work right out of the box

Cheers

Andreas

--
https://code.launchpad.net/~a-roehler/python-mode/python-mode-components
https://code.launchpad.net/s-x-emacs-werkstatt/