const CACHE_VERSION = 1;
+ /**
+ * @var array Brace matching rules.
+ */
+ protected $rules = array(
+ '{' => array(
+ 'end' => '}',
+ 'names' => array(
+ 2 => 'template',
+ 3 => 'tplarg',
+ ),
+ 'min' => 2,
+ 'max' => 3,
+ ),
+ '[' => array(
+ 'end' => ']',
+ 'names' => array( 2 => null ),
+ 'min' => 2,
+ 'max' => 2,
+ )
+ );
+
/**
* Store a document tree in the cache.
*