#!/usr/bin/env bash
#
# $Id$
# Author: Markus Wenzel, TU Muenchen
# License: GPL (GNU GENERAL PUBLIC LICENSE)
#
# Isabelle interface startup script.
## settings
PRG="$(basename "$0")"
ISABELLE_HOME="$(dirname "$0")/.."
. "$ISABELLE_HOME/lib/scripts/getsettings" || \
  { echo "$PRG probably not called from its original place!"; exit 2; }
## diagnostics
function fail()
{
  echo "$1" >&2
  exit 2
}
## main
case "$ISABELLE_INTERFACE" in
  none)
    INTERFACE="$ISABELLE"
    ;;
  */*)
    INTERFACE="$ISABELLE_INTERFACE"
    ;;
  *)
    INTERFACE="$ISABELLE_HOME/lib/scripts/isa-$ISABELLE_INTERFACE"
    ;;
esac
[ ! -x "$INTERFACE" ] && fail "Bad Isabelle interface: \"$ISABELLE_INTERFACE\""
exec "$INTERFACE" "$@"