template proc: add variable filters

include/template_processor.php

@@ -160,15 +160,25 @@
 
 		private function var_replace($s){
 			$m = array();
-			if (preg_match_all('/\$\[{0,1}([a-zA-Z0-9-_]+\.*)+\]{0,1}/', $s,$m)){
-				foreach($m[0] as $var){
-					$varn = str_replace(array("[","]"), array("",""), $var);
-					$val = $this->_get_var($varn, true);
+			if (preg_match_all('/(\$\[{0,1}([a-zA-Z0-9-_]+\.*)+)(\|[a-zA-Z0-9-_]+)*\]{0,1}/', $s,$m)){
+				foreach($m[1] as $id=>$var){
+					$var = str_replace("[", "", $var);
+					$val = $this->_get_var($var, true);
+					
+					// apply filters
+					if ($m[3][$id]!=""){
+						$filters = explode("|",trim($m[3][$id],"|"));
+						foreach($filters as $filter)
+							if (function_exists($filter)) 
+								$val=$filter($val);
+					}
 					if ($val!=KEY_NOT_EXISTS)
-						$s = str_replace($var, $val, $s);
+						$s = str_replace($m[0][$id], $val, $s);
 				}
 			}
 			
+			
+			
 			return $s;
 		}