includes/diff/DiffOpCopy.php

   1 <?php
   2
   3 /**
   4  * A PHP diff engine for phpwiki. (Taken from phpwiki-1.3.3)
   5  *
   6  * Copyright © 2000, 2001 Geoffrey T. Dairiki <dairiki@dairiki.org>
   7  * You may copy this code freely under the conditions of the GPL.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @file
  25  * @ingroup DifferenceEngine
  26  */
  27
  28 /**
  29  * Extends DiffOp. Used to mark strings that have been
  30  * copied from one string array to the other.
  31  *
  32  * @private
  33  * @ingroup DifferenceEngine
  34  */
  35 class DiffOpCopy extends DiffOp {
  36         public $type = 'copy';
  37
  38         public function __construct( $orig, $closing = false ) {
  39                 if ( !is_array( $closing ) ) {
  40                         $closing = $orig;
  41                 }
  42                 $this->orig = $orig;
  43                 $this->closing = $closing;
  44         }
  45
  46         /**
  47          * @return DiffOpCopy
  48          */
  49         public function reverse() {
  50                 return new DiffOpCopy( $this->closing, $this->orig );
  51         }
  52 }