- private function _get_lang(){
- if ($this->lang!=null) return $this->lang;
-
- $a = get_app();
- $this->lang=array();
- if(is_array($a->strings) && count($a->strings)) {
- foreach ($a->strings as $k=>$v){
- $k = preg_replace("/[^a-z0-9-]/", "", str_replace(" ","-", strtolower($k)));
- $this->lang[$k] = $v;
+ private function var_replace($s){
+ $m = array();
+ /** regexp:
+ * \$ literal $
+ * (\[)? optional open square bracket
+ * ([a-zA-Z0-9-_]+\.?)+ var name, followed by optional
+ * dot, repeated at least 1 time
+ * (?(1)\]) if there was opened square bracket
+ * (subgrup 1), match close bracket
+ */
+ if (preg_match_all('/\$(\[)?([a-zA-Z0-9-_]+\.?)+(?(1)\])/', $s,$m)){
+
+ foreach($m[0] as $var){
+ $varn = str_replace(array("[","]"), array("",""), $var);
+ $val = $this->_get_var($varn, true);
+ if ($val!=KEY_NOT_EXISTS)
+ $s = str_replace($var, $val, $s);