lib/Tools/scala

added isabelle_scala_script wrapper -- NB: portable hash-bang allows exactly one executable, without additional arguments;

#!/usr/bin/env bash
#
# Author: Makarius
#
# DESCRIPTION: invoke Scala within the Isabelle environment

[ -e "$ISABELLE_HOME/Admin/build" ] && { "$ISABELLE_HOME/Admin/build" jars || exit $?; }

CLASSPATH="$(jvmpath "$CLASSPATH")"
isabelle_scala scala -Dfile.encoding=UTF-8 \
  "-Djava.ext.dirs=$(jvmpath "$ISABELLE_JAVA_EXT:$ISABELLE_HOME/lib/classes/ext")" "$@"