#!/bin/sh

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.


SYM=${1:-=}
COLS=`(stty -a | sed -n "s/.*columns[^0-9]*\([0-9]*\).*/\1/p") 2>/dev/null`;
test -z "${COLS}" && COLS=`(stty -a | sed -n "s/.*; \([0-9]*\) columns;.*/\1/p") 2>/dev/null`;
echo ${SYM} | sed -e :a -e "s/^.\\{1,${COLS:-80}\\}$/&${SYM}/;ta" -e "s/${SYM}//"