[ESS] Defining custom functions and menus

Sebastian Luque sluque at mun.ca
Fri Oct 22 00:26:44 CEST 2004

Dear List,

I'm trying to recreate some of the functionality of Dr. John Fox's init.el
file (http://socserv.mcmaster.ca/jfox/Books/Companion/ESS/) in Emacs (GNU
Emacs 21.3.1 (i386-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of 2004-08-03
on raven, modified by Debian). I only need some of the functions and have
them available in a similar menu. I'm not an elisp expert, so some help would
be very much appreciated.

I began by stripping down Dr. Fox's init.el file to the function definitions
and the menu creation commands which I'm interested in. As an example, below
is a first attempt at adapting Dr. Fox's definition of a function to load a

(defun menu-load-package (pkg)
  "Load package from a library."
  (interactive "sName of library: ")
   (concat "library(" pkg ")"))
  (other-window 1))

Originally, I wanted to have this function (and others with a similar goal)
offer completion, but don't know how to do that yet.

My next step is to adapt the inclusion of these functions in a submenu and
perhaps bind them to some key sequence. In the original code for XEmacs this
was done as:

(defun R-menu ()
"Hook to install R menu and sub-menus"
  (add-menu-item '("ESS" "R" "Packages") "Load package ..."

But this seems to require quite different syntax in Emacs, which I'm not yet
able to put to use here.

Help? Thanks in advance.

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