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// Copyright (c) 2014 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.

package org.cef.callback;

import java.util.Map;
import java.util.Vector;

/**
 * Class used to create and/or parse command line arguments. Arguments with
 * '--', '-' and, on Windows, '/' prefixes are considered switches. Switches
 * will always precede any arguments without switch prefixes. Switches can
 * optionally have a value specified using the '=' delimiter (e.g.
 * "-switch=value"). An argument of "--" will terminate switch parsing with all
 * subsequent tokens, regardless of prefix, being interpreted as non-switch
 * arguments. Switch names are considered case-insensitive.
 */
public interface CefCommandLine {

  /**
   * Reset the command-line switches and arguments but leave the program
   * component unchanged.
   */
  public void reset();
  /**
   * Get the program part of the command line string (the first item).
   */
  public String getProgram();
  /**
   * Set the program part of the command line string (the first item).
   * @param program Name of the program.
   */
  public void setProgram(String program);
  /**
   * Checks if the command line has switches.
   * @return true if the command line has switches.
   */
  public boolean hasSwitches();
  /**
   * Checks if the command line has a specific switches.
   * @param name A switch name to test for.
   * @return true if the command line contains the given switch.
   */
  public boolean hasSwitch(String name);
  /**
   * Returns the value associated with the given switch. If the switch has no
   * value or isn't present this method returns the empty string.
   * @param name the name of the switch.
   * @return the value of the switch.
   */
  public String getSwitchValue(String name);
  /**
   * Returns the map of switch names and values. If a switch has no value an
   * empty string is returned.
   * @return Map of switches and each value. 
   */
  public Map getSwitches();
  /**
   * Add a switch with an empty value to the end of the command line. 
   * @param name name of the switch.
   */
  public void appendSwitch(String name);
  /**
   * Add a switch with the specified value to the end of the command line.
   * @param name name of the switch.
   * @param value value for the switch.
   */
  public void appendSwitchWithValue(String name, String value);
  /**
   * Tests if there are remaining command line arguments.
   * @return True if there are remaining command line arguments.
   */
  public boolean hasArguments();
  /**
   * Get the remaining command line arguments.
   * @return Vector of command line arguments.
   */
  public Vector getArguments();
  /**
   * Add an argument to the end of the command line.
   * @param argument name of the argument.
   */
  public void appendArgument(String argument);
}