#!/bin/bash
#
# $Id$
#
# DESCRIPTION: expand shorthand goal commands
PRG=$(basename $0)
function usage()
{
  echo
  echo "Usage: $PRG [FILES|DIRS...]"
  echo
  echo "  Recursively find .ML files, expand shorthand goal commands."
  echo "  Also contracts uses of resolve_tac, dresolve_tac, eresolve_tac,"
  echo "  rewrite_goals_tac on 1-element lists; furthermore expands tabs,"
  echo "  since they are now forbidden in ML string constants."
  echo
  echo "  Renames old versions of files by appending \"~~\"."
  echo
  exit 1
}
## process command line
[ $# -eq 0 -o "$1" = "-?" ] && usage
SPECS="$@"; shift $#
## main
#set by configure
AUTO_PERL=perl
find $SPECS -name \*.ML -print | xargs $AUTO_PERL -w $ISABELLE_HOME/lib/scripts/expandshort.pl