#!/bin/sh
# Copyright 2009 Gentoo Foundation
# Distributed under the terms of the MIT license
 
# Editor wrapper script, executes ${EDITOR} on file $1.
# We disallow options and multiple file name arguments on purpose, so
# that packages' configure scripts cannot sniff out the type of editor.
 
if [ $# -ne 1 ]; then
    echo "$0: Exactly one argument required" >&2
    exit 1
fi
 
file=$1
if [ "${file#-}" != "${file}" ]; then
    # Argument is supposed to be a file name, not an option
    file=./${file}
fi
 
if [ -z "${EDITOR}" ]; then
    # Try to get EDITOR from system profile
    EDITOR=$(. /etc/profile &>/dev/null; echo "${EDITOR}")
fi
 
if [ -z "${EDITOR}" ]; then
    echo "$0: The EDITOR variable must be set" >&2
    exit 1
fi
 
exec ${EDITOR} "${file}"

eselect editor list
Available targets for the EDITOR variable:
  [1]   /bin/nano
  [2]   /bin/ed
  [3]   /usr/bin/emacs
  [4]   /usr/bin/ex
  [5]   /usr/bin/vi
  [ ]   (free form)
 
eselect editor set 5
 
eselect editor list
Available targets for the EDITOR variable:
  [1]   /bin/nano
  [2]   /bin/ed
  [3]   /usr/bin/emacs
  [4]   /usr/bin/ex
  [5]   /usr/bin/vi *
  [ ]   (free form)