#!/usr/bin/env bash

 #

 # Author: Markus Wenzel, TU Muenchen

 #

 # Isabelle tool wrapper.

 if [ -L "$0" ]; then

   TARGET="$(LC_ALL=C ls -l "$0" | sed 's/.* -> //')"

   exec "$(cd "$(dirname "$0")"; cd "$(pwd -P)"; cd "$(dirname "$TARGET")"; pwd)/$(basename "$TARGET")" "$@"

 fi

 ## settings

 PRG="$(basename "$0")"

 ISABELLE_HOME="$(cd "$(dirname "$0")"; cd "$(pwd -P)"; cd ..; pwd)"

 source "$ISABELLE_HOME/lib/scripts/getsettings" || exit 2

 ## diagnostics

 function usage()

 {

   echo

   echo "Usage: $PRG NAME [ARGS ...]"

   echo

   echo "  Start Isabelle tool NAME with ARGS; pass \"-?\" for tool specific help."

   echo

   echo "  Available tools are:"

   perl -w "$ISABELLE_HOME/lib/scripts/tools.pl"

   exit 1

 }

 function fail()

 {

   echo "$1" >&2

   exit 2

 }

 ## args

 [ "$#" -lt 1 -o "$1" = "-?" ] && usage

 TOOLNAME="$1"

 shift

 ## main

 splitarray ":" "$ISABELLE_TOOLS"; TOOLS=("${SPLITARRAY[@]}")

 for DIR in "${TOOLS[@]}"

 do

   TOOL="$DIR/$TOOLNAME"

   case "$TOOL" in

     *~ | *.orig) ;;

     *) [ -f "$TOOL" -a -x "$TOOL" ] && exec "$TOOL" "$@" ;;

   esac

 done

 fail "Unknown Isabelle tool: $TOOLNAME"