diff --git a/Parserus.php b/Parserus.php
index d630400..5dba4d8 100644
--- a/Parserus.php
+++ b/Parserus.php
@@ -358,7 +358,7 @@ public function detectSmilies()
      * @param  mixed    $list Массив bb-кодов, null и т.д.
      * @return Parserus $this
      */
-    public function setWhiteList($list)
+    public function setWhiteList($list = null)
     {
         $this->whiteList = is_array($list) ? $list : null;
         return $this;
@@ -370,7 +370,7 @@ public function setWhiteList($list)
      * @param  mixed    $list Массив bb-кодов, null и т.д.
      * @return Parserus $this
      */
-    public function setBlackList($list)
+    public function setBlackList($list = null)
     {
         $this->blackList = ! empty($list) && is_array($list) ? $list : null;
         return $this;
@@ -997,18 +997,10 @@ public function getCode($id = 0)
      * Метод ищет в текстовых узлах ссылки и создает на их месте узлы с bb-кодами url
      * Для уменьшения нагрузки использовать при сохранении, а не при выводе
      *
-     * @param  int      $id Указатель на текущий тег
      * @return Parserus $this
      */
-    public function detectUrls($id = 0)
+    public function detectUrls()
     {
-        if (! isset($this->bbcodes['url'])
-            || isset($this->data[$id]['text'])
-            || isset($this->data[$id]['text only'])
-        ) {
-            return $this;
-        }
-
         $pattern = '%\b(?<=\s|^)
             (?>(?:ht|f)tps?://|www\.|ftp\.)
             (?:[\p{L}\p{N}]+(?:[\p{L}\p{N}\-]*[\p{L}\p{N}])?\.)+
@@ -1020,41 +1012,76 @@ public function detectUrls($id = 0)
                 (?:\#[\p{L}\p{N}-]+)?
             )?%xu';
 
-        $children = $this->data[$id]['children'];
-        $this->data[$id]['children'] = [];
+        return $this->detect('url', $pattern, true);
+    }
 
-        foreach ($children as $cid) {
-            if (! isset($this->data[$cid]['text'])) {
-                $this->data[$id]['children'][] = $cid;
-                $this->detectUrls($cid);
-            } else if (! isset($this->bbcodes['url']['parents'][$this->bbcodes[$this->data[$id]['tag']]['type']])) {
-                $this->data[$id]['children'][] = $cid;
-            } else {
-                $text = $this->data[$cid]['text'];
-                if (! preg_match_all($pattern, $text, $matches, PREG_OFFSET_CAPTURE)) {
-                    $this->data[$id]['children'][] = $cid;
-                    continue;
-                }
+    /**
+     * Метод ищет в текстовых узлах совпадения с $pattern и создает на их месте узлы с bb-кодами $tag
+     *
+     * @param  string   $tag      Имя для создания bb-кода
+     * @param  string   $pattern  Регулярное выражение для поиска
+     * @param  bool     $textOnly Флаг. true, если содержимое созданного тега текстовое
+     * @return Parserus $this
+     */
+    protected function detect($tag, $pattern, $textOnly)
+    {
+        if (! isset($this->bbcodes[$tag])) {
+            return $this;
+        }
+
+        $error = null;
+        if (null !== $this->blackList && in_array($tag, $this->blackList)) {
+            $error = 1;
+        } else if (null !== $this->whiteList && ! in_array($tag, $this->whiteList)) {
+            $error = 2;
+        }
 
-                $pos = 0;
+        for ($id = $this->dataId; $id > 0; --$id) {
+            // не текстовый узел
+            if (! isset($this->data[$id]['text'])) {
+                continue;
+            }
 
-                foreach ($matches[0] as $match) {
-                    $this->addTextNode(substr($text, $pos, $match[1] - $pos), $id);
+            $pid = $this->data[$id]['parent'];
 
-                    $new = $this->addTagNode('url', $id, [], true);
-                    $this->addTextNode($match[0], $new);
+            // родитель может содержать только текст или не подходит по типу
+            if (isset($this->data[$pid]['text only']) ||
+                ! isset($this->bbcodes[$tag]['parents'][$this->bbcodes[$this->data[$pid]['tag']]['type']])
+            ) {
+                continue;
+            }
 
-                    $pos = $match[1] + strlen($match[0]);
-                }
+            if (! preg_match_all($pattern, $this->data[$id]['text'], $matches, PREG_OFFSET_CAPTURE)) {
+                continue;
+            } else if ($error) {
+                $this->errors[] = [$error, $tag];
+                return $this;
+            }
 
-                $this->addTextNode($this->endStr($text, $pos), $id);
-                unset($this->data[$cid]);
+            $idx = array_search($id, $this->data[$pid]['children']);
+            $arrEnd = array_slice($this->data[$pid]['children'], $idx + 1);
+            $this->data[$pid]['children'] = array_slice($this->data[$pid]['children'], 0, $idx);
+
+            $pos = 0;
+
+            foreach ($matches[0] as $match) {
+                $this->addTextNode(substr($this->data[$id]['text'], $pos, $match[1] - $pos), $pid);
+
+                $new = $this->addTagNode($tag, $pid, [], $textOnly);
+                $this->addTextNode($match[0], $new);
+
+                $pos = $match[1] + strlen($match[0]);
             }
+
+            $this->addTextNode($this->endStr($this->data[$id]['text'], $pos), $pid);
+            unset($this->data[$id]);
+
+            $this->data[$pid]['children'] = array_merge($this->data[$pid]['children'], $arrEnd);
         }
+
         return $this;
     }
 
-
     /**
      * Метод удаляет пустые теги из дерева
      *
diff --git a/README.md b/README.md
index 75b8705..eb5ab5b 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # Parserus
 
+[![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)
+
 BBCode parser.
 
 ## Requirements
diff --git a/examples/detectUrls.php b/examples/detectUrls.php
index 08f6b04..a4c3a76 100644
--- a/examples/detectUrls.php
+++ b/examples/detectUrls.php
@@ -20,8 +20,8 @@
 #...
      },
     ],
-])->parse('Hello www.exemple.com World!')
+])->parse('Hello www.example.com World!')
   ->detectUrls()
   ->getCode();
 
-#output: Hello [url]www.exemple.com[/url] World!
+#output: Hello [url]www.example.com[/url] World!
diff --git a/examples/detectUrls2.php b/examples/detectUrls2.php
new file mode 100644
index 0000000..2ed193e
--- /dev/null
+++ b/examples/detectUrls2.php
@@ -0,0 +1,63 @@
+<?php
+
+include '../Parserus.php';
+
+$parser = new Parserus();
+
+echo $parser->setBBCodes([
+    ['tag' => 'url',
+     'type' => 'url',
+     'parents' => ['inline', 'block'],
+     'attrs' => [
+         'Def' => [
+             'format' => '%^[^\x00-\x1f]+$%',
+         ],
+         'no attr' => [
+             'body format' => '%^[^\x00-\x1f]+$%D',
+         ],
+     ],
+     'handler' => function($body, $attrs, $parser) {
+#...
+     },
+    ],
+    ['tag' => 'h',
+     'type' => 'h',
+     'handler' => function($body, $attrs, $parser) {
+#...
+     },
+    ],
+])->parse('www.example.com/link1[h]Hello www.example.com/link2 World![/h]www.example.com/link3')
+  ->detectUrls()
+  ->getCode();
+
+#output: [url]www.example.com/link1[/url][h]Hello www.example.com/link2 World![/h][url]www.example.com/link3[/url]
+
+echo "\n\n";
+
+echo $parser->setBlackList(['url'])
+  ->setWhiteList()
+  ->parse('www.example.com/link1[h]Hello www.example.com/link2 World![/h]www.example.com/link3')
+  ->detectUrls()
+  ->getCode();
+
+#output: www.example.com/link1[h]Hello www.example.com/link2 World![/h]www.example.com/link3
+
+var_dump($parser->getErrors());
+
+#output: array (size=1)
+#output:   0 => string 'Тег [url] находится в черном списке' (length=60)
+
+echo "\n\n";
+
+echo $parser->setBlackList()
+  ->setWhiteList(['h'])
+  ->parse('www.example.com/link1[h]Hello www.example.com/link2 World![/h]www.example.com/link3')
+  ->detectUrls()
+  ->getCode();
+
+#output: www.example.com/link1[h]Hello www.example.com/link2 World![/h]www.example.com/link3
+
+var_dump($parser->getErrors());
+
+#output: array (size=1)
+#output:   0 => string 'Тег [url] отсутствует в белом списке' (length=62)