#autoload

# Portable way of temporarily enabling null globbing:
#
# . path/to/this/script
# # do glob
# restore_nullglob
#
# Needed for handling word-separated pseudo-arrays portably.
# See also enable_nullglob.

enable_nullglob () {
  # Ugh!
  restore_nullglob=
  if [ -n "$ZSH_VERSION" ]; then
      if [[ -o nullglob ]]; then
          restore_nullglob='setopt nullglob'
      else
          restore_nullglob='setopt nonullglob'
      fi
      setopt nullglob
  elif [ -n "$BASH_VERSION" ]; then
      case "$BASH_VERSION" in
          1*)
              restore_nullglob="allow_null_glob_expansion=$allow_null_glob_expansion"
              allow_null_glob_expansion=0
              ;;
          2*|3*)
              restore_nullglob=`shopt -p nullglob`
              shopt -s nullglob
              ;;
          *)
              echo "Unknown \$BASH_VERSION $BASH_VERSION !  Aborting." >&2;
              return 1
              ;;
      esac
  else
      echo "Don't know how to enable null globbing in this shell (SHELL=$SHELL)" >&2
      return 1
  fi
}

restore_nullglob () {
    eval "$restore_nullglob"
}

enable_nullglob "$@"