- replace internal "eval()" calls by "include" during rendering process

- speed improvment for templates which have included subtemplates
    the compiled code of included templates is merged into the compiled code of the parent template
- added logical operator "xor" for {if} tag
- changed parameter ordering for Smarty2 BC
    fetch($template, $cache_id = null, $compile_id = null, $parent = null)
    display($template, $cache_id = null, $compile_id = null, $parent = null)
    createTemplate($template, $cache_id = null, $compile_id = null, $parent = null)
- property resource_char_set is now replaced by constant SMARTY_RESOURCE_CHAR_SET
- fixed handling of classes in registered blocks
- speed improvement of lexer on text sections

libs/sysplugins/internal.compile_function_plugin.php

@@ -30,6 +30,10 @@ class Smarty_Internal_Compile_Function_Plugin extends Smarty_Internal_CompileBas
         $this->optional_attributes = array('_any'); 
         // check and get attributes
         $_attr = $this->_get_attributes($args);
+        // not cachable?
+        if (isset($this->compiler->smarty->registered_plugins[$tag]) && !$this->compiler->smarty->registered_plugins[$tag][2]) {
+            $this->compiler->tag_nocache = true;        
+        }
         // convert attributes into parameter array string
         $_paramsArray = array();
         foreach ($_attr as $_key => $_value) {