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[yaffs-website] / vendor / twig / twig / lib / Twig / Error / Syntax.php

diff --git a/vendor/twig/twig/lib/Twig/Error/Syntax.php b/vendor/twig/twig/lib/Twig/Error/Syntax.php
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+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ * (c) Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Exception thrown when a syntax error occurs during lexing or parsing of a template.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Twig_Error_Syntax extends Twig_Error
+{
+    /**
+     * Tweaks the error message to include suggestions.
+     *
+     * @param string $name  The original name of the item that does not exist
+     * @param array  $items An array of possible items
+     */
+    public function addSuggestions($name, array $items)
+    {
+        if (!$alternatives = self::computeAlternatives($name, $items)) {
+            return;
+        }
+
+        $this->appendMessage(sprintf(' Did you mean "%s"?', implode('", "', $alternatives)));
+    }
+
+    /**
+     * @internal
+     *
+     * To be merged with the addSuggestions() method in 2.0.
+     */
+    public static function computeAlternatives($name, $items)
+    {
+        $alternatives = array();
+        foreach ($items as $item) {
+            $lev = levenshtein($name, $item);
+            if ($lev <= strlen($name) / 3 || false !== strpos($item, $name)) {
+                $alternatives[$item] = $lev;
+            }
+        }
+        asort($alternatives);
+
+        return array_keys($alternatives);
+    }
+}