1 /*

     2  * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 /*

    27  * This file is available under and governed by the GNU General Public

    28  * License version 2 only, as published by the Free Software Foundation.

    29  * However, the following notice accompanied the original version of this

    30  * file:

    31  *

    32  * The MIT License

    33  *

    34  * Copyright (c) 2004-2014 Paul R. Holser, Jr.

    35  *

    36  * Permission is hereby granted, free of charge, to any person obtaining

    37  * a copy of this software and associated documentation files (the

    38  * "Software"), to deal in the Software without restriction, including

    39  * without limitation the rights to use, copy, modify, merge, publish,

    40  * distribute, sublicense, and/or sell copies of the Software, and to

    41  * permit persons to whom the Software is furnished to do so, subject to

    42  * the following conditions:

    43  *

    44  * The above copyright notice and this permission notice shall be

    45  * included in all copies or substantial portions of the Software.

    46  *

    47  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

    48  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

    49  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

    50  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE

    51  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION

    52  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

    53  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

    54  */

    55 

    56 package jdk.internal.joptsimple;

    57 

    58 import java.util.Collection;

    59 

    60 /**

    61  * Specification of an option that accepts an optional argument.

    62  *

    63  * @param <V> represents the type of the arguments this option accepts

    64  * @author <a href="mailto:pholser@alumni.rice.edu">Paul Holser</a>

    65  */

    66 class OptionalArgumentOptionSpec<V> extends ArgumentAcceptingOptionSpec<V> {

    67     OptionalArgumentOptionSpec( String option ) {

    68         super( option, false );

    69     }

    70 

    71     OptionalArgumentOptionSpec( Collection<String> options, String description ) {

    72         super( options, false, description );

    73     }

    74 

    75     @Override

    76     protected void detectOptionArgument( OptionParser parser, ArgumentList arguments, OptionSet detectedOptions ) {

    77         if ( arguments.hasMore() ) {

    78             String nextArgument = arguments.peek();

    79 

    80             if ( !parser.looksLikeAnOption( nextArgument ) )

    81                 handleOptionArgument( parser, detectedOptions, arguments );

    82             else if ( isArgumentOfNumberType() && canConvertArgument( nextArgument ) )

    83                 addArguments( detectedOptions, arguments.next() );

    84             else

    85                 detectedOptions.add( this );

    86         }

    87         else

    88             detectedOptions.add( this );

    89     }

    90 

    91     private void handleOptionArgument( OptionParser parser, OptionSet detectedOptions, ArgumentList arguments ) {

    92         if ( parser.posixlyCorrect() ) {

    93             detectedOptions.add( this );

    94             parser.noMoreOptions();

    95         }

    96         else

    97             addArguments( detectedOptions, arguments.next() );

    98     }

    99 }