MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / includes / diff / ArrayDiffFormatter.php

diff --git a/includes/diff/ArrayDiffFormatter.php b/includes/diff/ArrayDiffFormatter.php
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+++ b/includes/diff/ArrayDiffFormatter.php
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+<?php
+/**
+ * Portions taken from phpwiki-1.3.3.
+ *
+ * Copyright © 2000, 2001 Geoffrey T. Dairiki <dairiki@dairiki.org>
+ * You may copy this code freely under the conditions of the GPL.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup DifferenceEngine
+ */
+
+/**
+ * A pseudo-formatter that just passes along the Diff::$edits array
+ * @ingroup DifferenceEngine
+ */
+class ArrayDiffFormatter extends DiffFormatter {
+
+       /**
+        * @param Diff $diff A Diff object.
+        *
+        * @return array[] List of associative arrays, each describing a difference.
+        */
+       public function format( $diff ) {
+               $oldline = 1;
+               $newline = 1;
+               $retval = [];
+               foreach ( $diff->getEdits() as $edit ) {
+                       switch ( $edit->getType() ) {
+                               case 'add':
+                                       foreach ( $edit->getClosing() as $line ) {
+                                               $retval[] = [
+                                                       'action' => 'add',
+                                                       'new' => $line,
+                                                       'newline' => $newline++
+                                               ];
+                                       }
+                                       break;
+                               case 'delete':
+                                       foreach ( $edit->getOrig() as $line ) {
+                                               $retval[] = [
+                                                       'action' => 'delete',
+                                                       'old' => $line,
+                                                       'oldline' => $oldline++,
+                                               ];
+                                       }
+                                       break;
+                               case 'change':
+                                       foreach ( $edit->getOrig() as $key => $line ) {
+                                               $retval[] = [
+                                                       'action' => 'change',
+                                                       'old' => $line,
+                                                       'new' => $edit->getClosing( $key ),
+                                                       'oldline' => $oldline++,
+                                                       'newline' => $newline++,
+                                               ];
+                                       }
+                                       break;
+                               case 'copy':
+                                       $oldline += count( $edit->getOrig() );
+                                       $newline += count( $edit->getOrig() );
+                       }
+               }
+
+               return $retval;
+       }
+
+}