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   1  <?php
   2  /**
   3   * Copyright 2007-2011 Horde LLC (http://www.horde.org/)
   4   *
   5   * See the enclosed file COPYING for license information (LGPL). If you did
   6   * not receive this file, see http://www.horde.org/licenses/lgpl21.
   7   *
   8   * @package Text_Diff
   9   * @author  Geoffrey T. Dairiki <dairiki@dairiki.org>
  10   */
  11  
  12  // Disallow direct access to this file for security reasons
  13  if(!defined("IN_MYBB"))
  14  {
  15      die("Direct initialization of this file is not allowed.<br /><br />Please make sure IN_MYBB is defined.");
  16  }
  17  
  18  class Horde_Text_Diff_ThreeWay_Op_Base
  19  {
  20      public function __construct($orig = false, $final1 = false, $final2 = false)
  21      {
  22          $this->orig = $orig ? $orig : array();
  23          $this->final1 = $final1 ? $final1 : array();
  24          $this->final2 = $final2 ? $final2 : array();
  25      }
  26  
  27      public function merged()
  28      {
  29          if (!isset($this->_merged)) {
  30              if ($this->final1 === $this->final2) {
  31                  $this->_merged = &$this->final1;
  32              } elseif ($this->final1 === $this->orig) {
  33                  $this->_merged = &$this->final2;
  34              } elseif ($this->final2 === $this->orig) {
  35                  $this->_merged = &$this->final1;
  36              } else {
  37                  $this->_merged = false;
  38              }
  39          }
  40  
  41          return $this->_merged;
  42      }
  43  
  44      public function isConflict()
  45      {
  46          return $this->merged() === false;
  47      }
  48  }