diff --git a/change_log.txt b/change_log.txt
index 7bcfd52d..9df95b8f 100644
--- a/change_log.txt
+++ b/change_log.txt
@@ -1,6 +1,7 @@
  ===== 3.1.30-dev ===== (xx.xx.xx)
  02.01.2016
   - update scope handling
+  - optimize block plugin compiler
   
  01.01.2016
   - remove Smarty::$resource_cache_mode property
diff --git a/libs/Smarty.class.php b/libs/Smarty.class.php
index ac99307c..f9ed3271 100644
--- a/libs/Smarty.class.php
+++ b/libs/Smarty.class.php
@@ -121,7 +121,7 @@ class Smarty extends Smarty_Internal_TemplateBase
     /**
      * smarty version
      */
-    const SMARTY_VERSION = '3.1.30-dev/16';
+    const SMARTY_VERSION = '3.1.30-dev/17';
 
     /**
      * define variable scopes
diff --git a/libs/sysplugins/smarty_internal_compile_private_block_plugin.php b/libs/sysplugins/smarty_internal_compile_private_block_plugin.php
index 9e2eea23..47c1b0f5 100644
--- a/libs/sysplugins/smarty_internal_compile_private_block_plugin.php
+++ b/libs/sysplugins/smarty_internal_compile_private_block_plugin.php
@@ -24,6 +24,13 @@ class Smarty_Internal_Compile_Private_Block_Plugin extends Smarty_Internal_Compi
      */
     public $optional_attributes = array('_any');
 
+    /**
+     * nesting level
+     *
+     * @var int
+     */
+    private $nesting = 0;
+
     /**
      * Compiles code for the execution of block plugin
      *
@@ -35,55 +42,75 @@ class Smarty_Internal_Compile_Private_Block_Plugin extends Smarty_Internal_Compi
      *
      * @return string compiled code
      */
-    public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler, $parameter, $tag, $function)
+    public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler, $parameter, $tag, $function = null)
     {
-        if (!isset($tag[5]) || substr($tag, - 5) != 'close') {
+        if (!isset($tag[ 5 ]) || substr($tag, - 5) != 'close') {
             // opening tag of block plugin
             // check and get attributes
             $_attr = $this->getAttributes($compiler, $args);
-            if ($_attr['nocache'] === true) {
+            $this->nesting ++;
+            if ($_attr[ 'nocache' ] === true) {
                 $compiler->tag_nocache = true;
             }
-            unset($_attr['nocache']);
-            // convert attributes into parameter array string
-            $_paramsArray = array();
-            foreach ($_attr as $_key => $_value) {
-                if (is_int($_key)) {
-                    $_paramsArray[] = "$_key=>$_value";
-                } else {
-                    $_paramsArray[] = "'$_key'=>$_value";
-                }
-            }
+            unset($_attr[ 'nocache' ]);
+            list($callback, $_paramsArray) = $this->setup($compiler, $_attr, $tag, $function);
             $_params = 'array(' . implode(",", $_paramsArray) . ')';
 
-            $this->openTag($compiler, $tag, array($_params, $compiler->nocache));
+            $this->openTag($compiler, $tag, array($_params, $compiler->nocache, $callback));
             // maybe nocache because of nocache variables or nocache plugin
             $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
             // compile code
-            $output = "<?php \$_smarty_tpl->smarty->_cache['tag_stack'][] = array('{$tag}', {$_params}); \$_block_repeat=true; echo {$function}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
+            $output =
+                "<?php \$_block_repeat{$this->nesting}=true;\necho {$callback}({$_params}, null, \$_smarty_tpl, \$_block_repeat{$this->nesting});\nwhile (\$_block_repeat{$this->nesting}) {\nob_start();\n?>";
         } else {
             // must endblock be nocache?
             if ($compiler->nocache) {
                 $compiler->tag_nocache = true;
             }
             // closing tag of block plugin, restore nocache
-            list($_params, $compiler->nocache) = $this->closeTag($compiler, substr($tag, 0, - 5));
+            list($_params, $compiler->nocache, $callback) = $this->closeTag($compiler, substr($tag, 0, - 5));
             // This tag does create output
             $compiler->has_output = true;
             // compile code
-            if (!isset($parameter['modifier_list'])) {
-                $mod_pre = $mod_post = '';
+            if (!isset($parameter[ 'modifier_list' ])) {
+                $mod_pre = $mod_post = $mod_content = '';
+                $mod_content2 = 'ob_get_clean()';
             } else {
-                $mod_pre = ' ob_start(); ';
-                $mod_post = 'echo ' .
-                    $compiler->compileTag('private_modifier', array(), array('modifierlist' => $parameter['modifier_list'],
-                                                                             'value'        => 'ob_get_clean()')) . ';';
+                $mod_content2 = "\$_block_content{$this->nesting}";
+                $mod_content = "\$_block_content{$this->nesting} = ob_get_clean();\n";
+                $mod_pre = "ob_start();\n";
+                $mod_post = 'echo ' . $compiler->compileTag('private_modifier', array(),
+                                                            array('modifierlist' => $parameter[ 'modifier_list' ],
+                                                                  'value'        => 'ob_get_clean()')) . ";\n";
             }
-            $output = "<?php \$_block_content = ob_get_clean(); \$_block_repeat=false;" . $mod_pre .
-                " echo {$function}({$_params}, \$_block_content, \$_smarty_tpl, \$_block_repeat); " . $mod_post .
-                " } array_pop(\$_smarty_tpl->smarty->_cache['tag_stack']);?>";
+            $output = "<?php " . $mod_content . "\$_block_repeat{$this->nesting}=false;\n" . $mod_pre .
+                "echo {$callback}({$_params}, " . $mod_content2 .
+                ", \$_smarty_tpl, \$_block_repeat{$this->nesting});\n" . $mod_post . "}\n?>";
+            $this->nesting --;
         }
-
         return $output . "\n";
     }
+
+    /**
+     * Setup callback and parameter array
+     *
+     * @param \Smarty_Internal_TemplateCompilerBase $compiler
+     * @param  array                                $_attr attributes
+     * @param  string                               $tag
+     * @param  string                               $function
+     *
+     * @return array
+     */
+    public function setup(Smarty_Internal_TemplateCompilerBase $compiler, $_attr, $tag, $function)
+    {
+        $_paramsArray = array();
+        foreach ($_attr as $_key => $_value) {
+            if (is_int($_key)) {
+                $_paramsArray[] = "$_key=>$_value";
+            } else {
+                $_paramsArray[] = "'$_key'=>$_value";
+            }
+        }
+        return array($function, $_paramsArray);
+    }
 }
diff --git a/libs/sysplugins/smarty_internal_compile_private_object_block_function.php b/libs/sysplugins/smarty_internal_compile_private_object_block_function.php
index d2bc5d60..42ea452b 100644
--- a/libs/sysplugins/smarty_internal_compile_private_object_block_function.php
+++ b/libs/sysplugins/smarty_internal_compile_private_object_block_function.php
@@ -14,78 +14,29 @@
  * @package    Smarty
  * @subpackage Compiler
  */
-class Smarty_Internal_Compile_Private_Object_Block_Function extends Smarty_Internal_CompileBase
+class Smarty_Internal_Compile_Private_Object_Block_Function extends Smarty_Internal_Compile_Private_Block_Plugin
 {
     /**
-     * Attribute definition: Overwrites base class.
+     * Setup callback and parameter array
      *
-     * @var array
-     * @see Smarty_Internal_CompileBase
+     * @param \Smarty_Internal_TemplateCompilerBase $compiler
+     * @param  array                                $_attr attributes
+     * @param  string                               $tag
+     * @param  string                               $method
+     *
+     * @return array
      */
-    public $optional_attributes = array('_any');
-
-    /**
-     * Compiles code for the execution of block plugin
-     *
-     * @param  array                                $args      array with attributes from parser
-     * @param \Smarty_Internal_TemplateCompilerBase $compiler  compiler object
-     * @param  array                                $parameter array with compilation parameter
-     * @param  string                               $tag       name of block object
-     * @param  string                               $method    name of method to call
-     *
-     * @return string compiled code
-     */
-    public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler, $parameter, $tag, $method)
+    public function setup(Smarty_Internal_TemplateCompilerBase $compiler, $_attr, $tag, $method)
     {
-        if (!isset($tag[5]) || substr($tag, - 5) != 'close') {
-            // opening tag of block plugin
-            // check and get attributes
-            $_attr = $this->getAttributes($compiler, $args);
-            if ($_attr['nocache'] === true) {
-                $compiler->tag_nocache = true;
-            }
-            unset($_attr['nocache']);
-            // convert attributes into parameter array string
-            $_paramsArray = array();
-            foreach ($_attr as $_key => $_value) {
-                if (is_int($_key)) {
-                    $_paramsArray[] = "$_key=>$_value";
-                } else {
-                    $_paramsArray[] = "'$_key'=>$_value";
-                }
-            }
-            $_params = 'array(' . implode(",", $_paramsArray) . ')';
-
-            $this->openTag($compiler, $tag . '->' . $method, array($_params, $compiler->nocache));
-            // maybe nocache because of nocache variables or nocache plugin
-            $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
-            // compile code
-            $output =
-                "<?php \$_smarty_tpl->smarty->_cache['tag_stack'][] = array('{$tag}->{$method}', {$_params}); \$_block_repeat=true; echo \$_smarty_tpl->smarty->registered_objects['{$tag}'][0]->{$method}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
-        } else {
-            $base_tag = substr($tag, 0, - 5);
-            // must endblock be nocache?
-            if ($compiler->nocache) {
-                $compiler->tag_nocache = true;
-            }
-            // closing tag of block plugin, restore nocache
-            list($_params, $compiler->nocache) = $this->closeTag($compiler, $base_tag . '->' . $method);
-            // This tag does create output
-            $compiler->has_output = true;
-            // compile code
-            if (!isset($parameter['modifier_list'])) {
-                $mod_pre = $mod_post = '';
+        $_paramsArray = array();
+        foreach ($_attr as $_key => $_value) {
+            if (is_int($_key)) {
+                $_paramsArray[] = "$_key=>$_value";
             } else {
-                $mod_pre = ' ob_start(); ';
-                $mod_post = 'echo ' . $compiler->compileTag('private_modifier', array(),
-                                                            array('modifierlist' => $parameter['modifier_list'],
-                                                                  'value'        => 'ob_get_clean()')) . ';';
+                $_paramsArray[] = "'$_key'=>$_value";
             }
-            $output = "<?php \$_block_content = ob_get_clean(); \$_block_repeat=false;" . $mod_pre .
-                " echo \$_smarty_tpl->smarty->registered_objects['{$base_tag}'][0]->{$method}({$_params}, \$_block_content, \$_smarty_tpl, \$_block_repeat); " .
-                $mod_post . "  } array_pop(\$_smarty_tpl->smarty->_cache['tag_stack']);?>";
         }
-
-        return $output . "\n";
+        $callback = "\$_smarty_tpl->smarty->registered_objects['{$tag}'][0]->{$method}";
+        return array($callback, $_paramsArray);
     }
 }
diff --git a/libs/sysplugins/smarty_internal_compile_private_registered_block.php b/libs/sysplugins/smarty_internal_compile_private_registered_block.php
index 78d95f72..846051ad 100644
--- a/libs/sysplugins/smarty_internal_compile_private_registered_block.php
+++ b/libs/sysplugins/smarty_internal_compile_private_registered_block.php
@@ -14,106 +14,45 @@
  * @package    Smarty
  * @subpackage Compiler
  */
-class Smarty_Internal_Compile_Private_Registered_Block extends Smarty_Internal_CompileBase
+class Smarty_Internal_Compile_Private_Registered_Block extends Smarty_Internal_Compile_Private_Block_Plugin
 {
     /**
-     * Attribute definition: Overwrites base class.
+     * Setup callback, parameter array and nocache mode
      *
-     * @var array
-     * @see Smarty_Internal_CompileBase
+     * @param \Smarty_Internal_TemplateCompilerBase $compiler
+     * @param  array                                $_attr attributes
+     * @param  string                               $tag
+     * @param  null                                 $function
+     *
+     * @return array
      */
-    public $optional_attributes = array('_any');
-
-    /**
-     * Compiles code for the execution of a block function
-     *
-     * @param  array                                       $args      array with attributes from parser
-     * @param \Smarty_Internal_TemplateCompilerBase $compiler  compiler object
-     * @param  array                                       $parameter array with compilation parameter
-     * @param  string                                      $tag       name of block function
-     *
-     * @return string compiled code
-     */
-    public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler, $parameter, $tag)
+    public function setup(Smarty_Internal_TemplateCompilerBase $compiler, $_attr, $tag, $function)
     {
-        if (!isset($tag[5]) || substr($tag, - 5) != 'close') {
-            // opening tag of block plugin
-            // check and get attributes
-            $_attr = $this->getAttributes($compiler, $args);
-            if ($_attr['nocache']) {
-                $compiler->tag_nocache = true;
-            }
-            unset($_attr['nocache']);
-            if (isset($compiler->smarty->registered_plugins[Smarty::PLUGIN_BLOCK][$tag])) {
-                $tag_info = $compiler->smarty->registered_plugins[Smarty::PLUGIN_BLOCK][$tag];
-            } else {
-                $tag_info = $compiler->default_handler_plugins[Smarty::PLUGIN_BLOCK][$tag];
-            }
-            // convert attributes into parameter array string
-            $_paramsArray = array();
-            foreach ($_attr as $_key => $_value) {
-                if (is_int($_key)) {
-                    $_paramsArray[] = "$_key=>$_value";
-                } elseif ($compiler->template->caching && in_array($_key, $tag_info[2])) {
-                    $_value = str_replace("'", "^#^", $_value);
-                    $_paramsArray[] = "'$_key'=>^#^.var_export($_value,true).^#^";
-                } else {
-                    $_paramsArray[] = "'$_key'=>$_value";
-                }
-            }
-            $_params = 'array(' . implode(",", $_paramsArray) . ')';
-
-            $this->openTag($compiler, $tag, array($_params, $compiler->nocache));
-            // maybe nocache because of nocache variables or nocache plugin
-            $compiler->nocache = !$tag_info[1] | $compiler->nocache | $compiler->tag_nocache;
-            $function = $tag_info[0];
-            // compile code
-            if (!is_array($function)) {
-                $output = "<?php \$_smarty_tpl->smarty->_cache['tag_stack'][] = array('{$tag}', {$_params}); \$_block_repeat=true; echo {$function}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
-            } elseif (is_object($function[0])) {
-                $output = "<?php \$_smarty_tpl->smarty->_cache['tag_stack'][] = array('{$tag}', {$_params}); \$_block_repeat=true; echo \$_smarty_tpl->smarty->registered_plugins['block']['{$tag}'][0][0]->{$function[1]}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
-            } else {
-                $output = "<?php \$_smarty_tpl->smarty->_cache['tag_stack'][] = array('{$tag}', {$_params}); \$_block_repeat=true; echo {$function[0]}::{$function[1]}({$_params}, null, \$_smarty_tpl, \$_block_repeat);while (\$_block_repeat) { ob_start();?>";
-            }
+        if (isset($compiler->smarty->registered_plugins[Smarty::PLUGIN_BLOCK][$tag])) {
+            $tag_info = $compiler->smarty->registered_plugins[Smarty::PLUGIN_BLOCK][$tag];
         } else {
-            // must endblock be nocache?
-            if ($compiler->nocache) {
-                $compiler->tag_nocache = true;
-            }
-            $base_tag = substr($tag, 0, - 5);
-            // closing tag of block plugin, restore nocache
-            list($_params, $compiler->nocache) = $this->closeTag($compiler, $base_tag);
-            // This tag does create output
-            $compiler->has_output = true;
-            if (isset($compiler->smarty->registered_plugins[Smarty::PLUGIN_BLOCK][$base_tag])) {
-                $function = $compiler->smarty->registered_plugins[Smarty::PLUGIN_BLOCK][$base_tag][0];
+            $tag_info = $compiler->default_handler_plugins[Smarty::PLUGIN_BLOCK][$tag];
+        }
+        $compiler->tag_nocache = !$tag_info[ 1 ] | $compiler->tag_nocache;
+        $callback = $tag_info[ 0 ];
+        if (is_array($callback)) {
+            if (is_object($callback[ 0 ])) {
+                $callback = "\$_smarty_tpl->smarty->registered_plugins['block']['{$tag}'][0][0]->{$callback[1]}";
             } else {
-                $function = $compiler->default_handler_plugins[Smarty::PLUGIN_BLOCK][$base_tag][0];
-            }
-            // compile code
-            if (!isset($parameter['modifier_list'])) {
-                $mod_pre = $mod_post = '';
-            } else {
-                $mod_pre = ' ob_start(); ';
-                $mod_post = 'echo ' .
-                    $compiler->compileTag('private_modifier', array(), array('modifierlist' => $parameter['modifier_list'],
-                                                                             'value'        => 'ob_get_clean()')) . ';';
-            }
-            if (!is_array($function)) {
-                $output = "<?php \$_block_content = ob_get_clean(); \$_block_repeat=false;" . $mod_pre .
-                    " echo {$function}({$_params}, \$_block_content, \$_smarty_tpl, \$_block_repeat);" . $mod_post .
-                    " } array_pop(\$_smarty_tpl->smarty->_cache['tag_stack']);?>";
-            } elseif (is_object($function[0])) {
-                $output = "<?php \$_block_content = ob_get_clean(); \$_block_repeat=false;" . $mod_pre .
-                    " echo \$_smarty_tpl->smarty->registered_plugins['block']['{$base_tag}'][0][0]->{$function[1]}({$_params}, \$_block_content, \$_smarty_tpl, \$_block_repeat); " .
-                    $mod_post . "} array_pop(\$_smarty_tpl->smarty->_cache['tag_stack']);?>";
-            } else {
-                $output = "<?php \$_block_content = ob_get_clean(); \$_block_repeat=false;" . $mod_pre .
-                    " echo {$function[0]}::{$function[1]}({$_params}, \$_block_content, \$_smarty_tpl, \$_block_repeat); " .
-                    $mod_post . "} array_pop(\$_smarty_tpl->smarty->_cache['tag_stack']);?>";
+                $callback = "{$callback[0]}::{$callback[1]}";
             }
         }
-
-        return $output . "\n";
+        $_paramsArray = array();
+        foreach ($_attr as $_key => $_value) {
+            if (is_int($_key)) {
+                $_paramsArray[] = "$_key=>$_value";
+            } elseif ($compiler->template->caching && in_array($_key, $tag_info[ 2 ])) {
+                $_value = str_replace("'", "^#^", $_value);
+                $_paramsArray[] = "'$_key'=>^#^.var_export($_value,true).^#^";
+            } else {
+                $_paramsArray[] = "'$_key'=>$_value";
+            }
+        }
+        return array($callback, $_paramsArray);
     }
 }