diff --git a/docs/syntax.md b/docs/syntax.md
index 8707ab6..f77cfe4 100644
--- a/docs/syntax.md
+++ b/docs/syntax.md
@@ -25,7 +25,7 @@ Fenom implement [Smarty](http://www.smarty.net/) syntax with some improvements
 
 ### System variable
 
-Unnamed system variable starts with `$.` and allow access to global variables and system info:
+Unnamed system variable starts with `$.` and allow access to global variables and system info (fix doc):
 
 * `$.get` is `$_GET`.
 * `$.post` is `$_POST`.
@@ -135,7 +135,7 @@ See also [{var}](./tags/var.md) documentation.
 ### Strings
 
 When the string in double quotation marks, all the expressions in the string will be run.
-The result of the expression will be inserted into the string instead it.
+The result of expressions will be inserted into the string instead it.
 
 ```smarty
 {var $foo="Username"}
@@ -168,9 +168,9 @@ but if use single quote any template expressions will be on display as it is
 
 ### Modifiers
 
-* Модификаторы позволяют изменить значение переменной перед выводом или использованием в выражении
-* To apply a modifier, specify the value followed by a | (pipe) and the modifier name.
-* A modifier may accept additional parameters that affect its behavior. These parameters follow the modifier name and are separated by a : (colon).
+* Modifiers allows change some value before output or using.
+* To apply a modifier, specify the value followed by a `|` (pipe) and the modifier name.
+* A modifier may accept additional parameters that affect its behavior. These parameters follow the modifier name and are separated by a `:` (colon).
 
 ```smarty
 {var $foo="User"}
@@ -187,13 +187,14 @@ but if use single quote any template expressions will be on display as it is
 
 ### Tags
 
-Каждый тэг шаблонизатора либо выводит переменную, либо вызывает какую-либо функцию. (переписать)
-Тег вызова функции начинается с названия функции и содержит список аргументов:
+Basically, tag seems like
 
 ```smarty
 {FUNCNAME attr1 = "val1" attr2 = $val2}
 ```
 
+Tags starts with name and may have attributes
+
 Это общий формат функций, но могут быть исключения, например функция [{var}](./tags/var.md), использованная выше.
 
 ```smarty
diff --git a/sandbox/templates/extends/parent.tpl b/sandbox/templates/extends/parent.tpl
new file mode 100644
index 0000000..e69de29
diff --git a/src/Fenom.php b/src/Fenom.php
index db8e5d9..7fb7090 100644
--- a/src/Fenom.php
+++ b/src/Fenom.php
@@ -99,6 +99,11 @@ class Fenom
      */
     protected $_compile_dir = "/tmp";
 
+    /**
+     * @var string[] compile directory for custom provider
+     */
+    protected $_compiles = array();
+
     /**
      * @var int masked options
      */
@@ -213,8 +218,7 @@ class Fenom
             'type' => self::BLOCK_COMPILER,
             'open' => 'Fenom\Compiler::tagBlockOpen',
             'close' => 'Fenom\Compiler::tagBlockClose',
-            'tags' => array(//                'parent' => 'Fenom\Compiler::tagParent' // not implemented yet
-            ),
+            'tags' => array('parent' => 'Fenom\Compiler::tagParent'),
             'float_tags' => array('parent' => 1)
         ),
         'extends' => array( // {extends ...}
@@ -355,7 +359,7 @@ class Fenom
     }
 
     /**
-     * @param callable $cbcd
+     * @param callable $cb
      * @return self
      */
     public function addTagFilter($cb)
@@ -620,11 +624,15 @@ class Fenom
      *
      * @param string $scm scheme name
      * @param Fenom\ProviderInterface $provider provider object
+     * @param string $compile_path
      * @return $this
      */
-    public function addProvider($scm, \Fenom\ProviderInterface $provider)
+    public function addProvider($scm, \Fenom\ProviderInterface $provider, $compile_path = null)
     {
         $this->_providers[$scm] = $provider;
+        if($compile_path) {
+            $this->_compiles[$scm] = $compile_path;
+        }
         return $this;
     }
 
@@ -730,7 +738,11 @@ class Fenom
     public function getTemplate($template, $options = 0)
     {
         $options |= $this->_options;
-        $key = dechex($options) . "@" . $template;
+        if(is_array($template)) {
+            $key = dechex($options) . "@" . implode(",", $template);
+        } else {
+            $key = dechex($options) . "@" . $template;
+        }
         if (isset($this->_storage[$key])) {
             /** @var Fenom\Template $tpl */
             $tpl = $this->_storage[$key];
@@ -766,13 +778,13 @@ class Fenom
     /**
      * Load template from cache or create cache if it doesn't exists.
      *
-     * @param string $tpl
+     * @param string $template
      * @param int $opts
      * @return Fenom\Render
      */
-    protected function _load($tpl, $opts)
+    protected function _load($template, $opts)
     {
-        $file_name = $this->_getCacheName($tpl, $opts);
+        $file_name = $this->_getCacheName($template, $opts);
         if (is_file($this->_compile_dir . "/" . $file_name)) {
             $fenom = $this; // used in template
             $_tpl = include($this->_compile_dir . "/" . $file_name);
@@ -781,7 +793,7 @@ class Fenom
                 return $_tpl;
             }
         }
-        return $this->compile($tpl, true, $opts);
+        return $this->compile($template, true, $opts);
     }
 
     /**
@@ -793,14 +805,22 @@ class Fenom
      */
     private function _getCacheName($tpl, $options)
     {
-        $hash = $tpl . ":" . $options;
-        return sprintf("%s.%x.%x.php", str_replace(":", "_", basename($tpl)), crc32($hash), strlen($hash));
+        if(is_array($tpl)) {
+            $hash = implode(".", $tpl) . ":" . $options;
+            foreach($tpl as &$t) {
+                $t = str_replace(":", "_", basename($t));
+            }
+            return implode("~", $tpl).".".sprintf("%x.%x.php", crc32($hash), strlen($hash));
+        } else {
+            $hash = $tpl . ":" . $options;
+            return sprintf("%s.%x.%x.php", str_replace(":", "_", basename($tpl)), crc32($hash), strlen($hash));
+        }
     }
 
     /**
      * Compile and save template
      *
-     * @param string $tpl
+     * @param string|array $tpl
      * @param bool $store store template on disk
      * @param int $options
      * @throws RuntimeException
@@ -809,7 +829,15 @@ class Fenom
     public function compile($tpl, $store = true, $options = 0)
     {
         $options = $this->_options | $options;
-        $template = $this->getRawTemplate()->load($tpl);
+        if(is_string($tpl)) {
+            $template = $this->getRawTemplate()->load($tpl);
+        } else {
+            $template = $this->getRawTemplate()->load($tpl[0], false);
+            unset($tpl[0]);
+            foreach($tpl as $t) {
+                $template->extend($t);
+            }
+        }
         if ($store) {
             $cache = $this->_getCacheName($tpl, $options);
             $tpl_tmp = tempnam($this->_compile_dir, $cache);
diff --git a/src/Fenom/Compiler.php b/src/Fenom/Compiler.php
index a871128..56a9e72 100644
--- a/src/Fenom/Compiler.php
+++ b/src/Fenom/Compiler.php
@@ -549,33 +549,13 @@ class Compiler
     public static function tagUse(Tokenizer $tokens, Template $tpl)
     {
         if ($tpl->getStackSize()) {
-            throw new InvalidUsageException("Tags {use} can not be nested");
+            throw new InvalidUsageException("Tag {use} can not be nested");
         }
-        $cname = $tpl->parsePlainArg($tokens, $name);
+        $tpl->parsePlainArg($tokens, $name);
         if ($name) {
-            $donor = $tpl->getStorage()->getRawTemplate()->load($name, false);
-            $donor->_extended = true;
-            $donor->_extends = $tpl;
-            $donor->_compatible = & $tpl->_compatible;
-            //$donor->blocks = &$tpl->blocks;
-            $donor->compile();
-            $blocks = $donor->blocks;
-            foreach ($blocks as $name => $code) {
-                if (isset($tpl->blocks[$name])) {
-                    $tpl->blocks[$name] = $code;
-                    unset($blocks[$name]);
-                }
-            }
-            $tpl->uses = $blocks + $tpl->uses;
-            $tpl->addDepend($donor);
-            return '?>' . $donor->getBody() . '<?php ';
+            $tpl->importBlocks($name);
         } else {
             throw new InvalidUsageException('template name must be given explicitly yet');
-            // under construction
-//            $tpl->_compatible = true;
-//            return '$donor = $tpl->getStorage()->getTemplate(' . $cname . ', \Fenom\Template::EXTENDED);' . PHP_EOL .
-//            '$donor->fetch((array)$tpl);' . PHP_EOL .
-//            '$tpl->b += (array)$donor->b';
         }
     }
 
@@ -583,8 +563,8 @@ class Compiler
      * Tag {block ...}
      * @param Tokenizer $tokens
      * @param Scope $scope
+     * @throws \RuntimeException
      * @return string
-     * @throws InvalidUsageException
      */
     public static function tagBlockOpen(Tokenizer $tokens, Scope $scope)
     {
@@ -592,77 +572,58 @@ class Compiler
             $scope->tpl->_compatible = true;
         }
         $scope["cname"] = $scope->tpl->parsePlainArg($tokens, $name);
+        if(!$name) {
+            throw new \RuntimeException("Only static names for blocks allowed");
+        }
         $scope["name"] = $name;
+        $scope["use_parent"] = false;
     }
 
     /**
-     * Close tag {/block}
+     * @param Tokenizer $tokens
+     * @param Scope $scope
+     */
+    public static function tagBlockClose($tokens, Scope $scope)
+    {
+        $tpl = $scope->tpl;
+        $name = $scope["name"];
+        if(isset($tpl->blocks[$name])) { // block defined
+            $block = &$tpl->blocks[$name];
+            if($block['use_parent']) {
+                $parent = $scope->getContent();
+
+                $block['block'] = str_replace($block['use_parent']." ?>", "?>".$parent, $block['block']);
+            }
+            if(!$block["import"]) {  // not from {use} - redefine block
+                $scope->replaceContent($block["block"]);
+                return;
+            } elseif($block["import"] != $tpl->getName()) { // tag {use} was in another template
+                $tpl->blocks[$scope["name"]]["import"] = false;
+                $scope->replaceContent($block["block"]);
+            }
+        }
+        $tpl->blocks[$scope["name"]] = [
+            "from"        => $tpl->getName(),
+            "import"      => false,
+            "use_parent"  => $scope["use_parent"],
+            "block"       => $scope->getContent()
+        ];
+    }
+
+    /**
+     * Tag {parent}
+     *
      * @param Tokenizer $tokens
      * @param Scope $scope
      * @return string
      */
-    public static function tagBlockClose($tokens, Scope $scope)
-    {
-
-        $tpl = $scope->tpl;
-        if (isset($tpl->_extends)) { // is child
-            if ($scope["name"]) { // is scalar name
-                if ($tpl->_compatible) { // is compatible mode
-                    $scope->replaceContent(
-                        '<?php /* 1) Block ' . $tpl . ': ' . $scope["cname"] . ' */' . PHP_EOL . ' if(empty($tpl->b[' . $scope["cname"] . '])) { ' .
-                        '$tpl->b[' . $scope["cname"] . '] = function($tpl) { ?>' . PHP_EOL .
-                        $scope->getContent() .
-                        "<?php };" .
-                        "} ?>" . PHP_EOL
-                    );
-                } elseif (!isset($tpl->blocks[$scope["name"]])) { // is block not registered
-                    $tpl->blocks[$scope["name"]] = $scope->getContent();
-                    $scope->replaceContent(
-                        '<?php /* 2) Block ' . $tpl . ': ' . $scope["cname"] . ' ' . $tpl->_compatible . ' */' . PHP_EOL . ' $tpl->b[' . $scope["cname"] . '] = function($tpl) { ?>' . PHP_EOL .
-                        $scope->getContent() .
-                        "<?php }; ?>" . PHP_EOL
-                    );
-                }
-            } else { // dynamic name
-                $tpl->_compatible = true; // enable compatible mode
-                $scope->replaceContent(
-                    '<?php /* 3) Block ' . $tpl . ': ' . $scope["cname"] . ' */' . PHP_EOL . ' if(empty($tpl->b[' . $scope["cname"] . '])) { ' .
-                    '$tpl->b[' . $scope["cname"] . '] = function($tpl) { ?>' . PHP_EOL .
-                    $scope->getContent() .
-                    "<?php };" .
-                    "} ?>" . PHP_EOL
-                );
-            }
-        } else { // is parent
-            if (isset($tpl->blocks[$scope["name"]])) { // has block
-                if ($tpl->_compatible) { // compatible mode enabled
-                    $scope->replaceContent(
-                        '<?php /* 4) Block ' . $tpl . ': ' . $scope["cname"] . ' */' . PHP_EOL . ' if(isset($tpl->b[' . $scope["cname"] . '])) { echo $tpl->b[' . $scope["cname"] . ']->__invoke($tpl); } else {?>' . PHP_EOL .
-                        $tpl->blocks[$scope["name"]] .
-                        '<?php } ?>' . PHP_EOL
-                    );
-
-                } else {
-                    $scope->replaceContent($tpl->blocks[$scope["name"]]);
-                }
-//            } elseif(isset($tpl->_extended) || !empty($tpl->_compatible)) {
-            } elseif (isset($tpl->_extended) && $tpl->_compatible || empty($tpl->_extended)) {
-                $scope->replaceContent(
-                    '<?php /* 5) Block ' . $tpl . ': ' . $scope["cname"] . ' */' . PHP_EOL . ' if(isset($tpl->b[' . $scope["cname"] . '])) { echo $tpl->b[' . $scope["cname"] . ']->__invoke($tpl); } else {?>' . PHP_EOL .
-                    $scope->getContent() .
-                    '<?php } ?>' . PHP_EOL
-                );
-            }
-        }
-        return '';
-
-    }
-
     public static function tagParent($tokens, Scope $scope)
     {
-        if (empty($scope->tpl->_extends)) {
-            throw new InvalidUsageException("Tag {parent} may be declared in children");
+        $block_scope = $scope->tpl->getParentScope('block');
+        if(!$block_scope['use_parent']) {
+            $block_scope['use_parent'] = "/* %%parent#".mt_rand(0, 1e6)."%% */";
         }
+        return $block_scope['use_parent'];
     }
 
     /**
@@ -1035,4 +996,4 @@ class Compiler
         $scope->tpl->escape = $scope["escape"];
     }
 
-}
+}
\ No newline at end of file
diff --git a/src/Fenom/Template.php b/src/Fenom/Template.php
index e33dfa8..fe2f885 100644
--- a/src/Fenom/Template.php
+++ b/src/Fenom/Template.php
@@ -155,6 +155,21 @@ class Template extends Render
         return count($this->_stack);
     }
 
+    /**
+     * @param string $tag
+     * @return bool|\Fenom\Scope
+     */
+    public function getParentScope($tag)
+    {
+        for($i = count($this->_stack) - 1; $i>=0; $i--) {
+            if($this->_stack[$i]->name == $tag) {
+                return $this->_stack[$i];
+            }
+        }
+
+        return false;
+    }
+
     /**
      * Load source from provider
      * @param string $name
@@ -443,6 +458,7 @@ class Template extends Render
             // evaluate template's code
             eval("\$this->_code = " . $this->_getClosureSource() . ";\n\$this->_macros = " . $this->_getMacrosArray() . ';');
             if (!$this->_code) {
+                var_dump($this->getBody());exit;
                 throw new CompileException("Fatal error while creating the template");
             }
         }
@@ -474,6 +490,36 @@ class Template extends Render
         }
     }
 
+    /**
+     * Import block from another template
+     * @param string $tpl
+     */
+    public function importBlocks($tpl) {
+        $donor = $this->_fenom->compile($tpl, false);
+        foreach($donor->blocks as $name => $block) {
+            if(!isset($this->blocks[ $name ])) {
+                $block['import'] = $this->getName();
+                $this->blocks[ $name ] = $block;
+            }
+        }
+        $this->addDepend($donor);
+    }
+
+    /**
+     * Extends the template
+     * @param string $tpl
+     */
+    public function extend($tpl) {
+        $this->compile();
+        $parent = $this->_fenom->getRawTemplate()->load($tpl, false);
+        $parent->blocks = &$this->blocks;
+        $parent->_options = $this->_options;
+        $parent->compile();
+        $this->_body = $parent->_body;
+        $this->_src  = $parent->_src;
+        $this->addDepend($parent);
+    }
+
     /**
      * Tag router
      * @param Tokenizer $tokens
diff --git a/tests/TestCase.php b/tests/TestCase.php
index cedf302..3adcbfe 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -4,6 +4,7 @@ use Fenom, Fenom\Provider as FS;
 
 class TestCase extends \PHPUnit_Framework_TestCase
 {
+    public $template_path = 'template';
     /**
      * @var Fenom
      */
@@ -53,7 +54,7 @@ class TestCase extends \PHPUnit_Framework_TestCase
             FS::clean(FENOM_RESOURCES . '/compile/');
         }
 
-        $this->fenom = Fenom::factory(FENOM_RESOURCES . '/template', FENOM_RESOURCES . '/compile');
+        $this->fenom = Fenom::factory(FENOM_RESOURCES . '/' . $this->template_path, FENOM_RESOURCES . '/compile');
         $this->fenom->addModifier('dots', __CLASS__ . '::dots');
         $this->fenom->addModifier('concat', __CLASS__ . '::concat');
         $this->fenom->addModifier('append', __CLASS__ . '::append');
diff --git a/tests/cases/Fenom/ExtendsTest.php b/tests/cases/Fenom/ExtendsTest.php
new file mode 100644
index 0000000..f60bab5
--- /dev/null
+++ b/tests/cases/Fenom/ExtendsTest.php
@@ -0,0 +1,63 @@
+<?php
+namespace Fenom;
+use Fenom, Fenom\TestCase;
+
+class ExtendsTest extends TestCase
+{
+
+    public $template_path = 'provider';
+
+    public function _testSandbox()
+    {
+        try {
+            var_dump($this->fenom->getTemplate([
+                'autoextends/child.3.tpl',
+                'autoextends/child.2.tpl',
+                'autoextends/child.1.tpl',
+                'autoextends/parent.tpl',
+            ])->getBody());
+//            var_dump($this->fenom->compileCode('{block "main"}a {parent} b{/block}')->getBody());
+//            $child = $this->fenom->getRawTemplate()->load('autoextends/child.1.tpl', false);
+//            $child->extend('autoextends/parent.tpl');
+//            $child->compile();
+//            print_r($child->getBody());
+        } catch (\Exception $e) {
+            echo "$e";
+        }
+        exit;
+    }
+
+    public function testManualExtends()
+    {
+        $child = $this->fenom->getRawTemplate()->load('autoextends/child.1.tpl', false);
+        $child->extend('autoextends/parent.tpl');
+        $child->compile();
+        $result = "Before header
+Content of the header
+Before body
+Child 1 Body
+Before footer
+Content of the footer";
+        $this->assertSame($result, $child->fetch(array()));
+    }
+
+    /**
+     * @group testAutoExtends
+     */
+    public function testAutoExtends() {
+        $result = "Before header
+Child 2 header
+Before body
+Child 3 content
+Before footer
+Footer from use";
+        $this->assertSame($result, $this->fenom->fetch([
+            'autoextends/child.3.tpl',
+            'autoextends/child.2.tpl',
+            'autoextends/child.1.tpl',
+            'autoextends/parent.tpl',
+        ], array()));
+    }
+
+}
+
diff --git a/tests/resources/provider/autoextends/child.1.tpl b/tests/resources/provider/autoextends/child.1.tpl
new file mode 100644
index 0000000..a8bbf5b
--- /dev/null
+++ b/tests/resources/provider/autoextends/child.1.tpl
@@ -0,0 +1 @@
+{block 'body'}Child 1 {parent}{/block}
\ No newline at end of file
diff --git a/tests/resources/provider/autoextends/child.2.tpl b/tests/resources/provider/autoextends/child.2.tpl
new file mode 100644
index 0000000..958b425
--- /dev/null
+++ b/tests/resources/provider/autoextends/child.2.tpl
@@ -0,0 +1,3 @@
+
+{use 'autoextends/use.tpl'}
+{block 'header'}Child 2 header{/block}
diff --git a/tests/resources/provider/autoextends/child.3.tpl b/tests/resources/provider/autoextends/child.3.tpl
new file mode 100644
index 0000000..9461db2
--- /dev/null
+++ b/tests/resources/provider/autoextends/child.3.tpl
@@ -0,0 +1 @@
+{block 'body'}Child 3 content{/block}
\ No newline at end of file
diff --git a/tests/resources/provider/autoextends/parent.tpl b/tests/resources/provider/autoextends/parent.tpl
new file mode 100644
index 0000000..d23349b
--- /dev/null
+++ b/tests/resources/provider/autoextends/parent.tpl
@@ -0,0 +1,6 @@
+Before header
+{block 'header'}Content of the header{/block}
+Before body
+{block 'body'}Body{/block}
+Before footer
+{block 'footer'}Content of the footer{/block}
\ No newline at end of file
diff --git a/tests/resources/provider/autoextends/use.tpl b/tests/resources/provider/autoextends/use.tpl
new file mode 100644
index 0000000..6d6147d
--- /dev/null
+++ b/tests/resources/provider/autoextends/use.tpl
@@ -0,0 +1,2 @@
+{block 'footer'}Footer from use{/block}
+{block 'header'}Header from use{/block}
\ No newline at end of file
diff --git a/tests/resources/provider/staticextends/child.1.tpl b/tests/resources/provider/staticextends/child.1.tpl
new file mode 100644
index 0000000..6191eda
--- /dev/null
+++ b/tests/resources/provider/staticextends/child.1.tpl
@@ -0,0 +1,2 @@
+
+{block 'body'}Child 1 content{/block}
\ No newline at end of file
diff --git a/tests/resources/provider/staticextends/child.2.tpl b/tests/resources/provider/staticextends/child.2.tpl
new file mode 100644
index 0000000..0dbdcf7
--- /dev/null
+++ b/tests/resources/provider/staticextends/child.2.tpl
@@ -0,0 +1,2 @@
+
+{block 'header'}Child 2 header{/block}
\ No newline at end of file
diff --git a/tests/resources/provider/staticextends/child.3.tpl b/tests/resources/provider/staticextends/child.3.tpl
new file mode 100644
index 0000000..5644c48
--- /dev/null
+++ b/tests/resources/provider/staticextends/child.3.tpl
@@ -0,0 +1,2 @@
+
+{block 'body'}Child 3 content{/block}
\ No newline at end of file
diff --git a/tests/resources/provider/staticextends/parent.tpl b/tests/resources/provider/staticextends/parent.tpl
new file mode 100644
index 0000000..d23349b
--- /dev/null
+++ b/tests/resources/provider/staticextends/parent.tpl
@@ -0,0 +1,6 @@
+Before header
+{block 'header'}Content of the header{/block}
+Before body
+{block 'body'}Body{/block}
+Before footer
+{block 'footer'}Content of the footer{/block}
\ No newline at end of file