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package org.kohsuke.args4j.spi;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
import org.kohsuke.args4j.CmdLineException;
import org.kohsuke.args4j.CmdLineParser;
import org.kohsuke.args4j.OptionDef;
/**
* A regex option handler.
* @author Stephan Fuhrmann
*/
public class PatternOptionHandler extends OptionHandler<Pattern> {
public PatternOptionHandler(CmdLineParser parser, OptionDef option, Setter<Pattern> setter) {
super(parser, option, setter);
}
@Override
public int parseArguments(Parameters params) throws CmdLineException {
String s = params.getParameter(0);
Pattern p;
try {
p = Pattern.compile(s);
}
catch (PatternSyntaxException x) {
throw new CmdLineException(owner, Messages.ILLEGAL_PATTERN.format(option.toString(), s));
}
setter.addValue(p);
return 1;
}
@Override
public String getDefaultMetaVariable() {
return "REGEX";
}
}