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To:	rc@hawkwind.utcs.toronto.edu
Subject: lazy auto-loading of functions
Date:	Wed, 19 May 1993 00:40:46 -0400
From:	Alan Watson <alan@oldp.astro.wisc.edu>
X-Mts: smtp

Jealous of Paul Haahr's beautiful implementation of lazy auto-loading of
functions in es, I tried to do something similar in rc (which I'm still
using as my everyday shell).  Obviously, one cannot use his approach
directly, but one can go some of the way to reducing the size of the
environment as follows:

fnlib = $home/fn
fn load { builtin . $fnlib/$1 }
builtin cd $fnlib
name = () for ( name in * ) fn $name { load $0 && $0 $* }
builtin cd

This is just what you need for those rarely used but sometimes essential
functions.

Alan.