#!/usr/bin/env bash
#
# $Id: convert,v 1.5 2005/04/26 17:50:57 wenzelm Exp $
# Author: David von Oheimb, TU Muenchen
#
# DESCRIPTION: convert legacy tactic scripts to Isabelle/Isar tactic emulation


## diagnostics

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

function usage()
{
  echo
  echo "Usage: $PRG [FILES|DIRS...]"
  echo
  echo "  Recursively find .ML files, converting legacy tactic scripts to"
  echo "  Isabelle/Isar tactic emulation."
  echo "  Note: conversion is only approximated, based on some heuristics."
  echo
  echo "  Renames old versions of FILES by appending \"~0~\"."
  echo "  Creates new versions of FILES by appending \".thy\"."
  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/convert.pl"
