/**
 * $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.core.XValue;
import org.xmlsh.sh.shell.ParseResult;
import org.xmlsh.sh.shell.Shell;
import org.xmlsh.types.xtypes.XValueProperty;

public class PropertyWord extends Word {

  private Word mName;
  private Word mValue;

  public PropertyWord(Word name, Word value) {
    super(name.getFirstToken());
    mName = name;
    mValue = value;
  }

  @Override
  public void print(PrintWriter out) {
    mName.print(out);
    out.print(" : ");
    mValue.print(out);

  }

  @Override
  protected ParseResult expandToResult(Shell shell, EvalEnv env,
      ParseResult result) throws IOException, CoreException

  {
    String name = mName.expandString(shell, mName.evalEnv(nameEnv(env)));
    XValue xv = mValue.expand(shell, mValue.evalEnv(valueEnv(env)));
    result.add(XValue.newXValue(new XValueProperty(name, xv)));
    return result;

  }

  private EvalEnv valueEnv(EvalEnv env) {
    return env.withFlagsSet(EvalFlag.PARSE_QUOTES, EvalFlag.EXPAND_VAR,
        EvalFlag.JOIN_VALUES, EvalFlag.OMIT_NULL);

  }

  private EvalEnv nameEnv(EvalEnv env) {
    return env.withFlagsSet(EvalFlag.PARSE_QUOTES, EvalFlag.EXPAND_VAR,
        EvalFlag.JOIN_VALUES, EvalFlag.OMIT_NULL);
  }

  @Override
  public boolean isEmpty() {
    return mName == null && mValue == null;
  }

  @Override
  String getSimpleName() {
    return mName.getSimpleName();
  }

}

/*
 * Copyright (C) 2008-2012 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): David A. Lee
 * 
 */