inital commit

webroot/forum/inc/3rdparty/diff/Diff/Mapped.php

@@ -0,0 +1,68 @@
+<?php
+/**
+ * Copyright 2007-2017 Horde LLC (http://www.horde.org/)
+ *
+ * See the enclosed file COPYING for license information (LGPL). If you did
+ * not receive this file, see http://www.horde.org/licenses/lgpl21.
+ *
+ * @author   Geoffrey T. Dairiki <dairiki@dairiki.org>
+ * @category Horde
+ * @license  http://www.horde.org/licenses/lgpl21 LGPL-2.1
+ * @package  Text_Diff
+ */
+
+/**
+ * This can be used to compute things like case-insensitve diffs, or diffs
+ * which ignore changes in white-space.
+ *
+ * @author    Geoffrey T. Dairiki <dairiki@dairiki.org>
+ * @category  Horde
+ * @copyright 2007-2017 Horde LLC
+ * @license   http://www.horde.org/licenses/lgpl21 LGPL-2.1
+ * @package   Text_Diff
+ */
+
+// Disallow direct access to this file for security reasons
+if(!defined("IN_MYBB"))
+{
+	die("Direct initialization of this file is not allowed.<br /><br />Please make sure IN_MYBB is defined.");
+}
+
+class Horde_Text_Diff_Mapped extends Horde_Text_Diff
+{
+    /**
+     * Computes a diff between sequences of strings.
+     *
+     * @param string $engine  Name of the diffing engine to use.  'auto' will
+     *                        automatically select the best.
+     * @param array $params   Parameters to pass to the diffing engine:
+     *                        - Two arrays, each containing the lines from a
+     *                          file.
+     *                        - Two arrays with the same size as the first
+     *                          parameters. The elements are what is actually
+     *                          compared when computing the diff.
+     */
+    public function __construct($engine, $params)
+    {
+        list($from_lines, $to_lines, $mapped_from_lines, $mapped_to_lines) = $params;
+        assert(count($from_lines) == count($mapped_from_lines));
+        assert(count($to_lines) == count($mapped_to_lines));
+
+        parent::__construct($engine, array($mapped_from_lines, $mapped_to_lines));
+
+        $xi = $yi = 0;
+        for ($i = 0; $i < count($this->_edits); $i++) {
+            $orig = &$this->_edits[$i]->orig;
+            if (is_array($orig)) {
+                $orig = array_slice($from_lines, $xi, count($orig));
+                $xi += count($orig);
+            }
+
+            $final = &$this->_edits[$i]->final;
+            if (is_array($final)) {
+                $final = array_slice($to_lines, $yi, count($final));
+                $yi += count($final);
+            }
+        }
+    }
+}