基础代码

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+Peast
+==========
+
+[![Latest Stable Version](https://poser.pugx.org/mck89/peast/v/stable)](https://packagist.org/packages/mck89/peast)
+[![Total Downloads](https://poser.pugx.org/mck89/peast/downloads)](https://packagist.org/packages/mck89/peast)
+[![License](https://poser.pugx.org/mck89/peast/license)](https://packagist.org/packages/mck89/peast)
+[![Codacy Badge](https://api.codacy.com/project/badge/Grade/3d1890ff93944890833ff0b5d17d50d6)](https://www.codacy.com/app/marcomarchi89/peast?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=mck89/peast&amp;utm_campaign=Badge_Grade)
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+[![Build Status](https://travis-ci.org/mck89/peast.svg?branch=master)](https://travis-ci.org/mck89/peast)
+
+
+**Peast** _(PHP ECMAScript Abstract Syntax Tree)_ is a PHP 5.4+ library that parses JavaScript code, according to [ECMAScript specification](http://www.ecma-international.org/publications/standards/Ecma-262.htm), and generates an abstract syntax tree following the [ESTree standard](https://github.com/estree/estree).
+
+Installation
+-------------
+Include the following requirement to your composer.json:
+```
+{
+	"require": {
+		"mck89/peast": "dev-master"
+	}
+}
+```
+
+Run `composer install` to install the package.
+
+Then in your script include the autoloader and you can start using Peast:
+
+```php
+require_once "vendor/autoload.php";
+
+$source = "var a = 1"; //Your JavaScript code
+$ast = Peast\Peast::latest($source, $options)->parse(); //Parse it!
+```
+
+Documentation
+-------------
+Read the documentation for more examples and explanations:
+
+ 1. [AST generation and tokenization](doc/ast-and-tokenization.md)
+ 2. [Tree Traversing](doc/tree-traversing.md)
+ 3. [Querying By Selector](doc/querying-by-selector.md)
+ 4. [Rendering](doc/rendering.md)
+
+[Changelog](doc/changelog.md)