#!/bin/sh

OUT="$1"
IN="$2"

HELPFILE=`tempfile -p $$- -s .help`
HELPOPTS=''

ARGS_END_OPTS_ON_NON_OPT=false

ast2roar_help() {
 HELPOPTS="$*"

 cat > $HELPFILE
}

if [ -r $IN ]
then
 . ./$IN
else
 rm $HELPFILE
 exit 1;
fi

{
 echo '#!/bin/sh'
 echo

 echo "_args='$ARGS_ADD_OPTS';"
 cat <<_E_O_F_

while [ -n "\$1" ]
do
 k="\$1";
 shift;

 case "\$k" in
  '--')
   break;
  ;;
_E_O_F_

 if [ "$HELPOPTS" != '' ]
 then
  _opts=`echo "$HELPOPTS" | sed "s/^/\'/; s/$/\'/; s/ /\'\|\'/g"`
  echo "  $_opts)";
  echo '   cat <<__AST2ROAR__END_OF_HELP_TEXT__'
  cat $HELPFILE
  echo '__AST2ROAR__END_OF_HELP_TEXT__'
  echo '   exit 0;'
  echo '  ;;';
 fi

 for o in $ARGS_IGNORE_OPTS
 do
  on=`echo $o | cut -d: -f1`
  oa=`echo $o | cut -d: -f2`
  echo "  '$on')";
  if $oa
  then
   echo '   shift;';
  fi
  echo '  ;;';
 done

 for o in $ARGS_PASS_OPTS
 do
  on=`echo $o | cut -d: -f1`
  oa=`echo $o | cut -d: -f2`
  echo "  '$on')";
  if $oa
  then
   echo '   _args="$_args '"$on"' $1";';
   echo '   shift;';
  else
   echo '   _args="$_args '"$on"'";';
  fi
  echo '  ;;';
 done

 for o in $ARGS_MAP_OPTS
 do
  on=`echo $o | cut -d: -f1`
  oa=`echo $o | cut -d: -f2`
  or=`echo $o | cut -d: -f3`
  echo "  '$on')";
  if $oa
  then
   echo '   _args="$_args '"$or"' $1";';
   echo '   shift;';
  else
   echo '   _args="$_args '"$or"'";';
  fi
  echo '  ;;';
 done

 for o in $ARGS_DEEQ_OPTS
 do
  echo "  '$o='*)";
  echo '   _para=`echo "$k" | cut -d= -f2`;';
  echo '   _args="$_args '"$o"' $_para";';
  echo '  ;;';
 done

 for o in $ARGS_ENV_OPTS
 do
  on=`echo $o | cut -d: -f1`
  or=`echo $o | cut -d: -f2`
  echo "  '$on')";
  echo "   export $or=\"\$1\"";
  echo '   shift;';
  echo '  ;;';
  echo "  '$on='*)";
  echo '   _para=`echo "$k" | cut -d= -f2`;';
  echo "   export $or=\"\$_para\"";
  echo '  ;;';
 done

 cat <<_E_O_F_
  '-'*)
   echo "Unknown option" >&2;
   exit 1;
  ;;
  *)
_E_O_F_

 if $ARGS_PASS_NON_OPTS
 then
  echo '   _args="$_args $k";';
  if $ARGS_END_OPTS_ON_NON_OPT
  then
   echo '   break;';
  fi
 else
  echo '   echo "Unknown option" >&2;';
  echo '   exit 1;';
 fi

 cat <<_E_O_F_
  ;;
 esac;
done

_E_O_F_

 if $ARGS_PASS_NON_OPTS
 then
  echo '_args="$_args $*";';
 else
  echo 'if [ "$*" != '' ]';
  echo 'then';
  echo ' echo "Unknown option" >&2;';
  echo ' exit 1;';
  echo 'fi';
 fi

 cat <<_E_O_F_

exec $RNAME \$_args
_E_O_F_

 echo
 echo '#ll'
} > $OUT

chmod a+rx $OUT

rm $HELPFILE

exit 0;

#ll