/**
* 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.
*/
package org.apache.commons.cli;
/**
* Contains useful helper methods for classes within this package.
*
* @author John Keyes (john at integralsource.com)
*/
class Util {
/**
* <p>Remove the hyphens from the begining of <code>str</code> and
* return the new String.</p>
*
* @param str The string from which the hyphens should be removed.
*
* @return the new String.
*/
static String stripLeadingHyphens(String str)
{
if (str == null) {
return null;
}
if (str.startsWith("--"))
{
return str.substring(2, str.length());
}
else if (str.startsWith("-"))
{
return str.substring(1, str.length());
}
return str;
}
/**
* Remove the leading and trailing quotes from <code>str</code>.
* E.g. if str is '"one two"', then 'one two' is returned.
*
* @param str The string from which the leading and trailing quotes
* should be removed.
*
* @return The string without the leading and trailing quotes.
*/
static String stripLeadingAndTrailingQuotes(String str)
{
if (str.startsWith("\"")) {
str = str.substring(1, str.length());
}
if (str.endsWith("\"")) {
str = str.substring(0, str.length()-1);
}
return str;
}
}