diff --git a/README.md b/README.md
index 14d2f9f..07e5995 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 Fenom - Template Engine for PHP
 ===============================
 
-> Composer package: `{"fenom/fenom": "1.*"}`. See on [Packagist.org](https://packagist.org/packages/fenom/fenom)
+> Composer package: `{"fenom/fenom": "2.*"}`. See on [Packagist.org](https://packagist.org/packages/fenom/fenom)
 
 [![Latest Stable Version](https://poser.pugx.org/fenom/fenom/v/stable.png)](https://packagist.org/packages/fenom/fenom)
 [![Build Status](https://travis-ci.org/bzick/fenom.png?branch=master)](https://travis-ci.org/bzick/fenom)
@@ -12,7 +12,6 @@ Fenom - Template Engine for PHP
 * Simple [syntax](./docs/syntax.md)
 * [Fast](./docs/benchmark.md)
 * [Secure](./docs/settings.md)
-* Simple
 * [Flexible](./docs/ext/extensions.md)
 * [Lightweight](./docs/benchmark.md#stats)
 * [Powerful](./docs/readme.md)
diff --git a/docs/dev/schema.md b/docs/dev/schema.md
new file mode 100644
index 0000000..dfb0cc6
--- /dev/null
+++ b/docs/dev/schema.md
@@ -0,0 +1,120 @@
+How Fenom works
+===============
+
+```
+
+use Fenom;
+use Fenom\Render;
+use Fenom\Template;
+use Fenom\Tokenizer;
+
+______________________________
+|                            |
+| Fenom::display($tpl, $var) |
+|____________________________|
+              |
+              | search the template
+______________|___________________________
+| Template loaded into Fenom::$_storage? |
+|     Fenom::getTemplate($tpl)           |
+|________________________________________|
+              |                       |
+              | yes                   | no
+______________|__________             |
+|  Render the template  |             |
+| Render::display($tpl) |             |
+|_______________________|             |
+  |                                   |
+  | (hot start)                       |
+  |     ______________________________|__________________
+  |     | Template already compiled and stored in cache |
+  |     | Fenom::getTemplate($template)                 |
+  |     |_______________________________________________|
+  |                 |                              |
+  |                 | yes                          | no
+  |     ____________|_______________               |
+  |     | Load template from cache |   not found   |
+  |     | Fenom::_load(...)        |-------------->|
+  |     |__________________________|               |
+  |                 |                              |
+  |                 | found                        |
+  |     ____________|___________                   |
+  |     | Validate template    |     invalid       |
+  |     | Render::isValid(...) |------------------>|
+  |     |______________________|                   |
+  |                 |                              |
+  |                 | valid                        |
+  |     ____________|____________                  |
+  |     |  Render the template  |                  |
+  |<----| Render::display(...)  |                  |
+  |     |_______________________|                  |
+  |                                                |
+  |     _____________________________      ________|___________________
+  |     | Initialize compiler       |      | Compile the template     |
+  |     | Template::load($tpl)      |<-----| Fenom::compile($tpl)     |
+  |     |___________________________|      |__________________________|
+  |                 |
+  |     ____________|________________
+  |     | Load template source      |
+  |     | Provider::getSource($tpl) |
+  |     |___________________________|
+  |                 |
+  |     ____________|______________
+  |     | Start compilation       |
+  |     | Template::compile($tpl) |
+  |     |_________________________|
+  |                 |
+  |     ____________|______________
+  |     | Search template tag     |
+  |     | Template::compile($tpl) |<------------------------------------------------------|
+  |     |_________________________|                                                       |
+  |       |                 |                                                             |
+  |       | not found       | found                                                       |
+  |       |    _____________|_______________    _______________________________           |
+  |       |    | Tokenize the tag's code   |    | Parse the tag               |           |
+  |       |    | new Tokenizer($tag)       |--->| Template::parseTag($tokens) |           |
+  |       |    |___________________________|    |_____________________________|           |
+  |       |                                        |                  |                   |
+  |       |                                 is tag |                  | is expression     |
+  |       |      _______________________________   |   _______________|________________   |
+  |       |      | Detect tag name             |   |   | Detect expression            |   |
+  |       |      | Template::parseAct($tokens) |<---   | Template::parseAct($tokens)  |   |
+  |       |      | Get callback by tag name    |       | Parse expression             |   |
+  |       |      | Fenom::getTag($tag_name)    |       | Template::parseExpr($tokens) |   |
+  |       |      |_____________________________|       |______________________________|   |
+  |       |                   |                                       |                   |
+  |       |                   | found                                 |                   |
+  |       |    _______________|_______________                        |                   |
+  |       |    | Invoke callback             |                        |                   |
+  |       |    | Template::parseAct($tokens) |                        |                   |
+  |       |    |_____________________________|                        |                   |
+  |       |                   |                                       |                   |
+  |       |    _______________|________________                       |                   |
+  |       |    | Append code to template      |                       |                   |
+  |       |    | Template::_appendCode($code) |<-----------------------                   |
+  |       |    |______________________________|                                           |
+  |       |                   |                                                           |
+  |       |    _______________|___________                                                |
+  |       |    | Finalize the tag        |                 starts search next tag         |
+  |       |    | Template::compile($tpl) |>------------------------------------------------
+  |       |    |_________________________|
+  |       |
+  |     __|___________________________________
+  |     | Store template to cache            |
+  |     | Fenom::compile($tpl)               |
+  |     | Store template to Fenom::$_storage |
+  |     | Fenom::getTemplate($tpl)           |
+  |     |____________________________________|
+  |                 |
+  |     ____________|_____________
+  |     | Render the template    |
+  |     | Template::display(...) |
+  |     |________________________|
+  |         |
+  |         | (cold start)
+__|_________|________
+|                   |
+|       DONE        |
+|___________________|
+
+```
\ No newline at end of file
diff --git a/docs/syntax.md b/docs/syntax.md
index eb5f5f2..27bf4cd 100644
--- a/docs/syntax.md
+++ b/docs/syntax.md
@@ -298,17 +298,18 @@ Outputs
 {/foreach}
 ```
 
-### Tag's compile options
+### Tag options
 
 |    name | code | type  | description  |
 | ------- | ---- | ----- | ------------ |
 |   strip |    s | block |              |
-|   atrim |    a | any   |              |
-|     raw |    r | any   |              |
-|   btrim |    b | any   |              |
-|  ignore |    i | block |              |
+|   ltrim |    l | any   |              |
+|   rtrim |    r | any   |              |
 |    trim |    t | any   |              |
+|     raw |    a | any   |              |
+|  escape |    e | any   |              |
+|  ignore |    i | block |              |
 
 ```smarty
-{script:s:a:r:b:i:t} ... {/script}
+{script:ignore} ... {/script}
 ```
\ No newline at end of file
diff --git a/src/Fenom.php b/src/Fenom.php
index 0d69369..cb6bd13 100644
--- a/src/Fenom.php
+++ b/src/Fenom.php
@@ -37,7 +37,8 @@ class Fenom
     const DISABLE_CACHE = 0x400;
     const FORCE_VERIFY = 0x800;
     const AUTO_TRIM = 0x1000; // reserved
-    const DENY_STATICS = 0x2000; // reserved
+    const DENY_STATICS = 0x2000;
+    const AUTO_STRIP = 0x4000; // reserved
 
     /* @deprecated */
     const DENY_INLINE_FUNCS = 0x20;
@@ -556,6 +557,7 @@ class Fenom
     }
 
     /**
+     * Modifier autoloader
      * @param string $modifier
      * @param Fenom\Template $template
      * @return bool
@@ -582,7 +584,8 @@ class Fenom
     }
 
     /**
-     * @param $tag
+     * Tags autoloader
+     * @param string $tag
      * @param Fenom\Template $template
      * @return bool
      */
diff --git a/src/Fenom/Compiler.php b/src/Fenom/Compiler.php
index 08fce9e..7699e7e 100644
--- a/src/Fenom/Compiler.php
+++ b/src/Fenom/Compiler.php
@@ -256,7 +256,7 @@ class Compiler
                 $condition = "$var >= {$p['to']}";
                 if ($p["last"]) $c = "($var + {$p['step']}) < {$p['to']}";
             } else {
-                throw new InvalidUsageException("Invalid step value if {for}");
+                throw new InvalidUsageException("Invalid step value");
             }
         } else {
             $condition = "({$p['step']} > 0 && $var <= {$p['to']} || {$p['step']} < 0 && $var >= {$p['to']})";
@@ -533,7 +533,7 @@ class Compiler
         if ($name) {
             $tpl->importBlocks($name);
         } else {
-            throw new InvalidUsageException('template name must be given explicitly yet');
+            throw new InvalidUsageException('Invalid template name for tag {use}');
         }
     }
 
@@ -551,7 +551,7 @@ class Compiler
         }
         $scope["cname"] = $scope->tpl->parsePlainArg($tokens, $name);
         if (!$name) {
-            throw new \RuntimeException("Only static names for blocks allowed");
+            throw new \RuntimeException("Invalid block name");
         }
         $scope["name"] = $name;
         $scope["use_parent"] = false;
@@ -837,7 +837,7 @@ class Compiler
 
         $tpl->parsePlainArg($tokens, $name);
         if (!$name) {
-            throw new InvalidUsageException("Invalid usage tag {import}");
+            throw new InvalidUsageException("Invalid template name");
         }
         if ($tokens->is(T_AS)) {
             $alias = $tokens->next()->get(Tokenizer::MACRO_STRING);
diff --git a/src/Fenom/Template.php b/src/Fenom/Template.php
index 2444481..53d3747 100644
--- a/src/Fenom/Template.php
+++ b/src/Fenom/Template.php
@@ -274,7 +274,7 @@ class Template extends Render
                         $_tag = substr($tag, 1, -1); // strip delimiters '{' and '}'
 
                         if ($this->_ignore) { // check ignore
-                            if ($_tag === '/ignore') { // turn off ignore
+                            if ($_tag === '/' . $this->_ignore) { // turn off ignore
                                 $this->_ignore = false;
                             } else { // still ignore
                                 $this->_appendText($tag);
@@ -559,7 +559,7 @@ class Template extends Render
         try {
             if ($tokens->is(Tokenizer::MACRO_STRING)) {
                 if ($tokens->current() === "ignore") {
-                    $this->_ignore = true;
+                    $this->_ignore = "ignore";
                     $tokens->next();
                     return '';
                 } else {
@@ -596,7 +596,7 @@ class Template extends Render
         /** @var Scope $scope */
         $scope = array_pop($this->_stack);
         if ($scope->name !== $name) {
-            throw new TokenizeException("Unexpected closing of the tag '$name' (expecting closing of the tag {$scope->name}, opened on line {$scope->line})");
+            throw new TokenizeException("Unexpected closing of the tag '$name' (expecting closing of the tag {$scope->name}, opened in line {$scope->line})");
         }
         if ($scope->is_compiler) {
             return $scope->close($tokens);
@@ -644,12 +644,20 @@ class Template extends Render
             } else {
                 return $this->out(Compiler::smartFuncParser($static, $tokens, $this));
             }
+        } elseif($tokens->is(':')) { // parse tag options
+            do {
+                $tokens->options[ $tokens->next()->need(T_STRING)->getAndNext() ] = true;
+            } while($tokens->is(':'));
         }
 
-        if ($tag = $this->_fenom->getTag($action, $this)) { // call some function
+        if ($tag = $this->_fenom->getTag($action, $this)) {
+            if(isset($tokens->options['ignore']) && ($tag["type"] & Fenom::BLOCK_COMPILER)) {
+                $this->_ignore = $action;
+            }
             switch ($tag["type"]) {
                 case Fenom::BLOCK_COMPILER:
                     $scope = new Scope($action, $this, $this->_line, $tag, count($this->_stack), $this->_body);
+                    $scope->options = &$tokens->options;
                     $code = $scope->open($tokens);
                     if (!$scope->is_closed) {
                         array_push($this->_stack, $scope);
@@ -661,6 +669,7 @@ class Template extends Render
                     return $this->out(call_user_func($tag["parser"], $tag["function"], $tokens, $this));
                 case Fenom::BLOCK_FUNCTION:
                     $scope = new Scope($action, $this, $this->_line, $tag, count($this->_stack), $this->_body);
+                    $scope->options = &$tokens->options;
                     $scope->setFuncName($tag["function"]);
                     array_push($this->_stack, $scope);
                     $scope->escape = $this->escape;
diff --git a/tests/cases/Fenom/AutoEscapeTest.php b/tests/cases/Fenom/AutoEscapeTest.php
index f8ecc17..de9ef7b 100644
--- a/tests/cases/Fenom/AutoEscapeTest.php
+++ b/tests/cases/Fenom/AutoEscapeTest.php
@@ -32,26 +32,30 @@ class AutoEscapeTest extends TestCase
             // inline function
             array('{test_function text=$html}, {$html}', "$html, $html", $vars, 0),
             array('{test_function text=$html}, {$html}', "$escaped, $escaped", $vars, \Fenom::AUTO_ESCAPE),
-            array('{raw:test_function text=$html}, {$html}', "$html, $escaped", $vars, \Fenom::AUTO_ESCAPE),
-            array('{raw:test_function text="{$html|up}"}, {$html}', strtoupper($html) . ", $escaped", $vars, \Fenom::AUTO_ESCAPE),
+            array('{test_function:raw text=$html}, {$html}', "$html, $escaped", $vars, \Fenom::AUTO_ESCAPE),
+            array('{test_function:raw text="{$html|up}"}, {$html}', strtoupper($html) . ", $escaped", $vars, \Fenom::AUTO_ESCAPE),
             array('{autoescape true}{test_function text=$html}{/autoescape}, {test_function text=$html}', "$escaped, $html", $vars, 0),
             array('{autoescape false}{test_function text=$html}{/autoescape}, {test_function text=$html}', "$html, $escaped", $vars, \Fenom::AUTO_ESCAPE),
             array('{autoescape true}{test_function text=$html}{/autoescape}, {test_function text=$html}', "$escaped, $escaped", $vars, \Fenom::AUTO_ESCAPE),
             array('{autoescape false}{test_function text=$html}{/autoescape}, {test_function text=$html}', "$html, $html", $vars, 0),
-            array('{autoescape true}{raw:test_function text=$html}{/autoescape}, {test_function text=$html}', "$html, $html", $vars, 0),
-            array('{autoescape false}{raw:test_function text=$html}{/autoescape}, {test_function text=$html}', "$html, $escaped", $vars, \Fenom::AUTO_ESCAPE),
-            array('{autoescape true}{raw:test_function text=$html}{/autoescape}, {test_function text=$html}', "$html, $escaped", $vars, \Fenom::AUTO_ESCAPE),
-            array('{autoescape false}{raw:test_function text=$html}{/autoescape}, {test_function text=$html}', "$html, $html", $vars, 0),
+            array('{autoescape true}{test_function:raw text=$html}{/autoescape}, {test_function text=$html}', "$html, $html", $vars, 0),
+            array('{autoescape false}{test_function:raw text=$html}{/autoescape}, {test_function text=$html}', "$html, $escaped", $vars, \Fenom::AUTO_ESCAPE),
+            array('{autoescape true}{test_function:raw text=$html}{/autoescape}, {test_function text=$html}', "$html, $escaped", $vars, \Fenom::AUTO_ESCAPE),
+            array('{autoescape false}{test_function:raw text=$html}{/autoescape}, {test_function text=$html}', "$html, $html", $vars, 0),
 
-            // block function. Have bugs
-//            array('{test_block_function}{$html}{/test_block_function}', $html, $vars, 0),
-//            array('{test_block_function}{$html}{/test_block_function}', $escaped, $vars, \Fenom::AUTO_ESCAPE),
-//            array('{raw:test_block_function}{$html}{/test_block_function}', $html, $vars, \Fenom::AUTO_ESCAPE),
-//            array('{raw:test_block_function}{"{$html|up}"}{/test_block_function}', strtoupper($html), $vars, \Fenom::AUTO_ESCAPE),
-//            array('{autoescape true}{test_block_function}{$html}{/test_block_function}{/autoescape}, {test_block_function}{$html}{/test_block_function}', "$escaped, $html", $vars, 0),
-//            array('{autoescape false}{test_block_function}{$html}{/test_block_function}{/autoescape}, {test_block_function}{$html}{/test_block_function}', "$html, $escaped", $vars, \Fenom::AUTO_ESCAPE),
-//            array('{autoescape true}{test_block_function}{$html}{/test_block_function}{/autoescape}, {test_block_function}{$html}{/test_block_function}', "$escaped, $escaped", $vars, \Fenom::AUTO_ESCAPE),
-//            array('{autoescape false}{test_block_function}{$html}{/test_block_function}{/autoescape}, {test_block_function}{$html}{/test_block_function}', "$html, $html", $vars, 0),
+            // block function
+            array('{test_block_function}{$html}{/test_block_function}', $html, $vars, 0),
+            array('{test_block_function}{$html}{/test_block_function}', $escaped, $vars, \Fenom::AUTO_ESCAPE),
+            array('{test_block_function:raw}{$html}{/test_block_function}', $html, $vars, \Fenom::AUTO_ESCAPE),
+            array('{test_block_function:raw}{"{$html|up}"}{/test_block_function}', strtoupper($html), $vars, \Fenom::AUTO_ESCAPE),
+            array('{autoescape true}{test_block_function}{$html}{/test_block_function}{/autoescape}, {test_block_function}{$html}{/test_block_function}', "$escaped, $html", $vars, 0),
+            array('{autoescape false}{test_block_function}{$html}{/test_block_function}{/autoescape}, {test_block_function}{$html}{/test_block_function}', "$html, $escaped", $vars, \Fenom::AUTO_ESCAPE),
+            array('{autoescape true}{test_block_function}{$html}{/test_block_function}{/autoescape}, {test_block_function}{$html}{/test_block_function}', "$escaped, $escaped", $vars, \Fenom::AUTO_ESCAPE),
+            array('{autoescape false}{test_block_function}{$html}{/test_block_function}{/autoescape}, {test_block_function}{$html}{/test_block_function}', "$html, $html", $vars, 0),
+            array('{autoescape true}{test_block_function:raw}{$html}{/test_block_function}{/autoescape}, {test_block_function}{$html}{/test_block_function}', "$escaped, $html", $vars, 0),
+            array('{autoescape false}{test_block_function:raw}{$html}{/test_block_function}{/autoescape}, {test_block_function}{$html}{/test_block_function}', "$html, $escaped", $vars, \Fenom::AUTO_ESCAPE),
+            array('{autoescape true}{test_block_function:raw}{$html}{/test_block_function}{/autoescape}, {test_block_function}{$html}{/test_block_function}', "$escaped, $escaped", $vars, \Fenom::AUTO_ESCAPE),
+            array('{autoescape false}{test_block_function:raw}{$html}{/test_block_function}{/autoescape}, {test_block_function}{$html}{/test_block_function}', "$html, $html", $vars, 0),
         );
     }
 
diff --git a/tests/cases/Fenom/ExtendsTest.php b/tests/cases/Fenom/ExtendsTest.php
index 1b1a950..006783f 100644
--- a/tests/cases/Fenom/ExtendsTest.php
+++ b/tests/cases/Fenom/ExtendsTest.php
@@ -18,6 +18,17 @@ class ExtendsTest extends TestCase
         exit;
     }
 
+    public static function providerExtendsInvalid()
+    {
+        return array(
+            array('{extends "extends/dynamic/child.3.tpl"} {extends "extends/dynamic/child.3.tpl"}', 'Fenom\Error\CompileException', "Only one {extends} allowed"),
+            array('{if true}{extends "extends/dynamic/child.3.tpl"}{/if}', 'Fenom\Error\CompileException', "Tag {extends} can not be nested"),
+            array('{if true}{use "extends/dynamic/use.tpl"}{/if}', 'Fenom\Error\CompileException', "Tag {use} can not be nested"),
+            array('{use $use_this}', 'Fenom\Error\CompileException', "Invalid template name for tag {use}"),
+            array('{block $use_this}{/block}', 'Fenom\Error\CompileException', "Invalid block name"),
+        );
+    }
+
     public function testAutoExtendsManual()
     {
         $child = $this->fenom->getRawTemplate()->load('extends/auto/child.1.tpl', false);
@@ -132,5 +143,14 @@ Before footer
 Footer from use";
         $this->assertSame($result, $this->fenom->fetch('extends/dynamic/child.4.tpl', array()));
     }
+
+    /**
+     * @group static-invalid
+     * @dataProvider providerExtendsInvalid
+     */
+    public function testExtendsInvalid($code, $exception, $message, $options = 0)
+    {
+        $this->execError($code, $exception, $message, $options);
+    }
 }
 
diff --git a/tests/cases/Fenom/TemplateTest.php b/tests/cases/Fenom/TemplateTest.php
index 44afc89..439b955 100644
--- a/tests/cases/Fenom/TemplateTest.php
+++ b/tests/cases/Fenom/TemplateTest.php
@@ -651,6 +651,7 @@ class TemplateTest extends TestCase
             array('For: {for first=$i $a=3 to=6} block1 {/for} end', 'Fenom\Error\CompileException', "Unexpected token 'first'"),
             array('For: {for last=$i $a=3 to=6} block1 {/for} end', 'Fenom\Error\CompileException', "Unexpected token 'last'"),
             array('For: {for $a=4 to=6 unk=4} block1 {/for} end', 'Fenom\Error\CompileException', "Unknown parameter 'unk'"),
+            array('For: {for $a=4 to=6 step=0} block1 {/for} end', 'Fenom\Error\CompileException', "Invalid step value"),
             array('For: {for $a=4 to=6} $a: {$a}, {forelse} {break} {/for} end', 'Fenom\Error\CompileException', "Improper usage of the tag {break}"),
             array('For: {for $a=4 to=6} $a: {$a}, {forelse} {continue} {/for} end', 'Fenom\Error\CompileException', "Improper usage of the tag {continue}"),
         );
@@ -847,7 +848,7 @@ class TemplateTest extends TestCase
     public function _testSandbox()
     {
         try {
-            var_dump($this->fenom->compileCode('{Fenom\TemplateTest::multi(3,4)}')->getBody());
+            var_dump($this->fenom->compileCode('{var:ignore $a} value {/var}')->getBody());
         } catch (\Exception $e) {
             print_r($e->getMessage() . "\n" . $e->getTraceAsString());
             while ($e->getPrevious()) {