bin/isabelle-interface

* greatly simplified document preparation setup, including more
graceful interpretation of isatool usedir -i/-d/-D options, and more
instructive isatool mkdir; users should basically be able to get
started with "isatool mkdir Test && isatool make";
* theory dependency graph may now be incorporated into documents;
isatool usedir -g true will produce session_graph.eps/.pdf for use
with \includegraphics of LaTeX;

#!/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 "$INTERFACE" "$@"