/**
 * $Id: $
 * $Date: $
 *
 */

package org.xmlsh.sh.core;

import java.io.IOException;
import java.io.PrintWriter;
import org.xmlsh.core.CoreException;
import org.xmlsh.core.EvalEnv;
import org.xmlsh.core.EvalFlag;
import org.xmlsh.sh.grammar.Token;
import org.xmlsh.sh.shell.ParseResult;
import org.xmlsh.sh.shell.Shell;

/*
 * A list of word expressions that should be joined together as a StringWord
 */
@SuppressWarnings("serial")
public class JoinedWordList extends ListWord {

  public JoinedWordList(Token t) {
    super(t);
  }

  // Print out words without a seperator.
  @Override
  public void print(PrintWriter out) {
    for(Word s : mList) {
      s.print(out);
    }
  }

  @Override
  public boolean add(Word word) {
    if(word instanceof JoinedWordList)
      return mList.addAll(((JoinedWordList) word).mList);
    else
      return super.add(word);
  }

  @Override
  protected ParseResult expandToResult(Shell shell, EvalEnv env,
      ParseResult result) throws IOException,
      CoreException {
    // env = env.withFlagsMasked(EvalFlag.JOIN_VALUES , EvalFlag.OMIT_NULL ,
    // EvalFlag. );

    env = evalEnv(env);
    // Combine and wild card expand
    for(Word w : mList) {
      result = w.expandToResult(shell, env, result);
    }

    return result;

  }

  /*
   * (non-Javadoc)
   * 
   * @see org.xmlsh.sh.core.Word#evalEnv(org.xmlsh.core.EvalEnv)
   */
  @Override
  public EvalEnv evalEnv(EvalEnv env) {
    // TODO Auto-generated method stub
    return env.withFlagSet(EvalFlag.JOIN_VALUES);
  }

}

//
//
// Copyright (C) 2008-2014 David A. Lee.
//
// The contents of this file are subject to the "Simplified BSD License" (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.opensource.org/licenses/bsd-license.php
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the License for the specific language governing rights and limitations
// under the License.
//
// The Original Code is: all this file.
//
// The Initial Developer of the Original Code is David A. Lee
//
// Portions created by (your name) are Copyright (C) (your legal entity). All
// Rights Reserved.
//
// Contributor(s): none.
//