RE: Binding a key to an ibuffer filter

["Drew Adams" <drew.adams@oracle.com>]

> > > I'm trying to bind a key to a filter in ibuffer-mode. I created a
> > > filter to display only C/C++ source files and it works ok 
> > > manually (I can switch to it using
> > > ibuffer-switch-to-saved-filter). I also added
> > > the following code to .emacs:
> >
> > > (defun ibuffer-display-source-files ()
> > >   (ibuffer-switch-to-saved-filters "c"))
> >
> > > (define-key ibuffer-mode-map [f1] 'ibuffer-display-source-files)
> >
> > > However, when I click F1 in ibuffer I get the following error:
> >
> > > Wrong type argument: commandp, ibuffer-display-source-files
> >
> > > Any idea?
> >
> > The error message is telling you that 
> > `ibuffer-display-source-files' is not a
> > command. A command in Emacs is a function that has an 
> > `interactive' spec. So do this:
> >
> > (defun ibuffer-display-source-files ()
> >   (interactive) ; <==== MISSING
> >   (ibuffer-switch-to-saved-filter "c"))
> >
> > Consider also adding a doc string, for your users. ;-)> Thanks a lot.
>
> Looks like some progress was made.
> Now when I click F1 I get an error: "Symbol's function definition is
> void: c"
> 
> My filter definition is as follow:
> '(ibuffer-saved-filters (quote (("c" ((mode . c++-mode))) ("gnus" ((or
> (mode . message-mode) (mode . mail-mode) (mode . gnus-group-mode)
> (mode . gnus-summary-mode) (mode . gnus-article-mode))))
> ("programming" ((or (mode . emacs-lisp-mode) (mode . cperl-mode)
> (mode . c-mode) (mode . java-mode) (mode . idl-mode) (mode . lisp-
> mode)))))))
> 
> And I'm calling the switch function using:
> (ibuffer-switch-to-saved-filters "c")
> Maybe I'm not passing the parameter correctly?

I'm not familiar with Ibuffer; perhaps someone else can help here. The error
message is telling you that `c' is not a function.

If someone else doesn't have a suggestion, try: (1) loading the source files
(e.g. ibuf-ext.el), not the byte-compiled files (e.g. ibuf-ext.elc), and then
(2) `M-x debug-on-entry RET ibuffer-switch-to-saved-filters'. Then step through
the debugger using `d' and `c', to see where the problem is.