Support.php: Constant for double curly braces redefined from '#&@[[@_#',...

Support.php: Constant for double curly braces redefined from '#&@[[@_#', '#&@]]@_#' to '#/+open+/#', '#/+close+/#' - it's more secure not to use '[' or ']' for the substitution string, cause square braces are now allowed as nesting chars.

extension/qfq/qfq/helper/Support.php

@@ -11,6 +11,9 @@ namespace qfq;
 require_once(__DIR__ . '/../Constants.php');
 require_once(__DIR__ . '/Sanitize.php');
 
+const LONG_CURLY_OPEN = '#/+open+/#';
+const LONG_CURLY_CLOSE = '#/+close+/#';
+
 class Support {
 
     /**
@@ -490,8 +493,8 @@ class Support {
      */
     public
     static function encryptDoubleCurlyBraces($text) {
-        $text = str_replace('{{', '#&@[[@_#', $text);
-        $text = str_replace('}}', '#&@]]@_#', $text);
+        $text = str_replace('{{', LONG_CURLY_OPEN, $text);
+        $text = str_replace('}}', LONG_CURLY_CLOSE, $text);
 
         return $text;
     }
@@ -503,8 +506,8 @@ class Support {
      * @return mixed
      */
     public static function decryptDoubleCurlyBraces($text) {
-        $text = str_replace('#&@[[@_#', '{{', $text);
-        $text = str_replace('#&@]]@_#', '}}', $text);
+        $text = str_replace(LONG_CURLY_OPEN, '{{', $text);
+        $text = str_replace(LONG_CURLY_CLOSE, '}}', $text);
 
         return $text;
     }

extension/qfq/tests/phpunit/SupportTest.php

@@ -291,17 +291,20 @@ class SupportTest extends \PHPUnit_Framework_TestCase {
     }
 
     public function testEncryptDoubleCurlyBraces() {
+#/+open+/#
+#/+close+/#
+
 
         $arr = [
             ['', ''],
             ['1', '1'],
             ["1\n2", "1\n2"],
             ['{', '{'],
-            ['#&@[[@_#', '{{'],
+            ['#/+open+/#', '{{'],
             ['-\{-', '-\{-'],
-            ['#&@[[@_##&@]]@_#-#&@[[@_##&@]]@_#', '{{}}-{{}}'],
-            ['#&@[[@_#hello#&@[[@_#world#&@]]@_##&@]]@_#', '{{hello{{world}}}}'],
-            ["\n\n##&@[[@_#\n#&@]]@_#", "\n\n#{{\n}}"],
+            ['#/+open+/##/+close+/#-#/+open+/##/+close+/#', '{{}}-{{}}'],
+            ['#/+open+/#hello#/+open+/#world#/+close+/##/+close+/#', '{{hello{{world}}}}'],
+            ["\n\n##/+open+/#\n#/+close+/#", "\n\n#{{\n}}"],
         ];
 
         foreach ($arr as $tuple) {