http://commons.apache.org/proper/commons-cli/: Apache Commons CLI provides a simple API for presenting, processing and validating a command line interface. (The Apache Software Foundation)
  • Beluga Behr
  • Peter Donald
  • Brian Egge
  • Duncan Jones
  • Berin Loritsch
  • Peter Maddocks (Hewlett-Packard)
  • Alexandru Mocanu
  • Andrew Shirley
  • Greg Thomas
  • Slawek Zachcial
  • James Strachan (SpiritSoft, Inc.)
  • Bob McWhirter (Werken)
  • John Keyes (integral Source)
  • Rob Oxspring (Indigo Stone)
  • Emmanuel Bourg (Ariane Software)
  • Thomas Neidhart 
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.

/**
 * 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.

Version:$Id: Util.java 1443102 2013-02-06 18:12:16Z tn $
/**
 * Contains useful helper methods for classes within this package.
 *
 * @version $Id: Util.java 1443102 2013-02-06 18:12:16Z tn $
 */
final class Util
{
    
Remove the hyphens from the beginning of str and
return the new String.

Params:
  • str – The string from which the hyphens should be removed.
Returns:the new String.
/**
     * Remove the hyphens from the beginning of <code>str</code> and
     * return the new String.
     *
     * @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 str.
E.g. if str is '"one two"', then 'one two' is returned.

Params:
  • str – The string from which the leading and trailing quotes
should be removed.
Returns:The string without the leading and trailing quotes.
/**
     * 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)
    {
        int length = str.length();
        if (length > 1 && str.startsWith("\"") && str.endsWith("\"") && str.substring(1, length - 1).indexOf('"') == -1)
        {
            str = str.substring(1, length - 1);
        }
        
        return str;
    }
}