change readme

README.md

@@ -21,24 +21,39 @@ and then `require` them in your code.
 
 ```php
 <?php
+
+require '../src/Autoloader.php';
+
+Xiaoler\Blade\Autoloader::register();
+
+use Xiaoler\Blade\FileViewFinder;
+use Xiaoler\Blade\Factory;
+use Xiaoler\Blade\Compilers\BladeCompiler;
+use Xiaoler\Blade\Engines\CompilerEngine;
+use Xiaoler\Blade\Filesystem;
+use Xiaoler\Blade\Engines\EngineResolver;
+
 $path = ['/view_path'];         // your view file path, it's an array
 $cachePath = '/cache_path';     // compiled file path
 
-$compiler = new \Xiaoler\Blade\Compilers\BladeCompiler($cachePath);
+$file = new Filesystem;
+$compiler = new BladeCompiler($file, $cachePath);
 
 // you can add a custom directive if you want
 $compiler->directive('datetime', function($timestamp) {
     return preg_replace('/(\(\d+\))/', '<?php echo date("Y-m-d H:i:s", $1); ?>', $timestamp);
 });
 
-$engine = new \Xiaoler\Blade\Engines\CompilerEngine($compiler);
-$finder = new \Xiaoler\Blade\FileViewFinder($path);
-
-// if your view file extension is not php or blade.php, use this to add it
-$finder->addExtension('tpl');
+$resolver = new EngineResolver;
+$resolver->register('blade', function () use ($file, $cachePath) {
+    return new CompilerEngine(new BladeCompiler($file, $cachePath));
+});
 
 // get an instance of factory
-$factory = new \Xiaoler\Blade\Factory($engine, $finder);
+$factory = new Factory($resolver, new FileViewFinder($file, $path));
+
+// if your view file extension is not php or blade.php, use this to add it
+$factory->addExtension('tpl', 'blade');
 
 // render the template file and echo it
 echo $factory->make('hello', ['a' => 1, 'b' => 2])->render();