joptsimple.OptionalArgumentOptionSpec Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jopt-simple Show documentation
Show all versions of jopt-simple Show documentation
A Java library for parsing command line options
/*
The MIT License
Copyright (c) 2004-2013 Paul R. Holser, Jr.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package joptsimple;
import java.util.Collection;
/**
* Specification of an option that accepts an optional argument.
*
* @param represents the type of the arguments this option accepts
* @author Paul Holser
*/
class OptionalArgumentOptionSpec extends ArgumentAcceptingOptionSpec {
OptionalArgumentOptionSpec( String option ) {
super( option, false );
}
OptionalArgumentOptionSpec( Collection options, String description ) {
super( options, false, description );
}
@Override
protected void detectOptionArgument( OptionParser parser, ArgumentList arguments, OptionSet detectedOptions ) {
if ( arguments.hasMore() ) {
String nextArgument = arguments.peek();
if ( !parser.looksLikeAnOption( nextArgument ) )
handleOptionArgument( parser, detectedOptions, arguments );
else if ( isArgumentOfNumberType() && canConvertArgument( nextArgument ) )
addArguments( detectedOptions, arguments.next() );
else
detectedOptions.add( this );
}
else
detectedOptions.add( this );
}
private void handleOptionArgument( OptionParser parser, OptionSet detectedOptions, ArgumentList arguments ) {
if ( parser.posixlyCorrect() ) {
detectedOptions.add( this );
parser.noMoreOptions();
}
else
addArguments( detectedOptions, arguments.next() );
}
}