/*
 * JBoss, Home of Professional Open Source
 * Copyright 2010, Red Hat, Inc., and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.seam.forge.shell.command.parser;

import java.util.HashMap;
import java.util.Map;
import java.util.Queue;

import org.jboss.seam.forge.shell.command.CommandMetadata;
import org.jboss.seam.forge.shell.command.OptionMetadata;

/**
 * Parses named boolean options such as:
 * <p>
 * <code>[command] {--toggle}</code>
 * 
 * @author <a href="mailto:lincolnbaxter@gmail.com">Lincoln Baxter, III</a>
 * 
 */
public class NamedBooleanOptionParser implements CommandParser
{

   @Override
   public Map<OptionMetadata, Object> parse(final CommandMetadata command, final Queue<String> tokens)
   {
      Map<OptionMetadata, Object> valueMap = new HashMap<OptionMetadata, Object>();
      String currentToken = tokens.peek();
      if (currentToken.matches("--?\\S+"))
      {
         boolean shortOption = currentToken.matches("-[^-]\\S+");
         currentToken = currentToken.substring(shortOption ? 1 : 2);

         if (shortOption ? command.hasShortOption(currentToken) : command.hasOption(currentToken))
         {
            OptionMetadata option = command.getNamedOption(currentToken);

            if (option.isBoolean())
            {
               tokens.remove();
               String value = "true";
               if (!option.isFlagOnly() && !tokens.isEmpty())
               {
                  String nextToken = tokens.peek();
                  if (nextToken.matches("true|false"))
                  {
                     value = nextToken;
                     tokens.remove(); // increment the chain of tokens
                  }
               }

               valueMap.put(option, value);
            }
         }
      }
      return valueMap;
   }

}

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2010, Red Hat, Inc., and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.seam.forge.shell.command.parser;

import java.util.HashMap;
import java.util.Map;
import java.util.Queue;
import java.util.regex.Pattern;

import org.jboss.seam.forge.shell.command.CommandMetadata;
import org.jboss.seam.forge.shell.command.OptionMetadata;

/**
 * Parses named boolean options such as:
 * <p>
 * <code>[command] {--toggle}</code>
 * 
 * @author <a href="mailto:lincolnbaxter@gmail.com">Lincoln Baxter, III</a>
 * 
 */
public class NamedBooleanOptionParser implements CommandParser
{

   @Override
   public Map<OptionMetadata, Object> parse(final CommandMetadata command, final Queue<String> tokens)
   {
      Map<OptionMetadata, Object> valueMap = new HashMap<OptionMetadata, Object>();
      String currentToken = tokens.peek();
      if (currentToken.matches("--?\\S+"))
      {
         boolean shortOption = currentToken.length() == 2 && currentToken.charAt(1) != '-';
         currentToken = currentToken.substring(shortOption ? 1 : 2);

         if (shortOption ? command.hasShortOption(currentToken) : command.hasOption(currentToken))
         {
            OptionMetadata option = command.getNamedOption(currentToken);

            if (option.isBoolean())
            {
               tokens.remove();
               String value = "true";
               if (!option.isFlagOnly() && !tokens.isEmpty())
               {
                  String nextToken = tokens.peek();
                  if (nextToken.matches("true|false"))
                  {
                     value = nextToken;
                     tokens.remove(); // increment the chain of tokens
                  }
               }

               valueMap.put(option, value);
            }
         }
      }
      return valueMap;
   }
}

fix short-flag support.