#!/bin/sh
#
# Copyright 1991 by Norman Ramsey.  All rights reserved.
# See file COPYRIGHT for more information.
# set -x
LIB=|LIBDIR|
$LIB/markup "$@" | nawk '
/^@quote$/,/^@endquote$/ { next }
/^@defn / { chunk=substr($0,7) ; defined[chunk]=1 }
/^@use /  { chunk=substr($0,6) ; used[chunk]=1 }
END {
  for (chunk in defined) {
    if (defined[chunk]==1 && used[chunk]==0) printf "<<%s>>\n", chunk
  }
}'