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   1  <?php
   2  /**
   3   * Portions taken from phpwiki-1.3.3.
   4   *
   5   * Copyright © 2000, 2001 Geoffrey T. Dairiki <[email protected]>
   6   * You may copy this code freely under the conditions of the GPL.
   7   *
   8   * This program is free software; you can redistribute it and/or modify
   9   * it under the terms of the GNU General Public License as published by
  10   * the Free Software Foundation; either version 2 of the License, or
  11   * (at your option) any later version.
  12   *
  13   * This program is distributed in the hope that it will be useful,
  14   * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16   * GNU General Public License for more details.
  17   *
  18   * You should have received a copy of the GNU General Public License along
  19   * with this program; if not, write to the Free Software Foundation, Inc.,
  20   * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  21   * http://www.gnu.org/copyleft/gpl.html
  22   *
  23   * @file
  24   * @ingroup DifferenceEngine
  25   */
  26  
  27  /**
  28   * A pseudo-formatter that just passes along the Diff::$edits array
  29   * @ingroup DifferenceEngine
  30   */
  31  class ArrayDiffFormatter extends DiffFormatter {
  32  
  33      /**
  34       * @param Diff $diff A Diff object.
  35       *
  36       * @return array[] List of associative arrays, each describing a difference.
  37       */
  38  	public function format( $diff ) {
  39          $oldline = 1;
  40          $newline = 1;
  41          $retval = array();
  42          foreach ( $diff->getEdits() as $edit ) {
  43              switch ( $edit->getType() ) {
  44                  case 'add':
  45                      foreach ( $edit->getClosing() as $line ) {
  46                          $retval[] = array(
  47                              'action' => 'add',
  48                              'new' => $line,
  49                              'newline' => $newline++
  50                          );
  51                      }
  52                      break;
  53                  case 'delete':
  54                      foreach ( $edit->getOrig() as $line ) {
  55                          $retval[] = array(
  56                              'action' => 'delete',
  57                              'old' => $line,
  58                              'oldline' => $oldline++,
  59                          );
  60                      }
  61                      break;
  62                  case 'change':
  63                      foreach ( $edit->getOrig() as $key => $line ) {
  64                          $retval[] = array(
  65                              'action' => 'change',
  66                              'old' => $line,
  67                              'new' => $edit->getClosing( $key ),
  68                              'oldline' => $oldline++,
  69                              'newline' => $newline++,
  70                          );
  71                      }
  72                      break;
  73                  case 'copy':
  74                      $oldline += count( $edit->getOrig() );
  75                      $newline += count( $edit->getOrig() );
  76              }
  77          }
  78  
  79          return $retval;
  80      }
  81  
  82  }