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+<p align="center">
+  <img alt="babylon" src="https://raw.githubusercontent.com/babel/logo/master/babylon.png" width="700">
+</p>
+
+<p align="center">
+  Babylon is a JavaScript parser used in <a href="https://github.com/babel/babel">Babel</a>.
+</p>
+
+<p align="center">
+  <a href="https://travis-ci.org/babel/babylon"><img alt="Travis Status" src="https://img.shields.io/travis/babel/babylon/master.svg?style=flat&label=travis"></a>
+  <a href="https://codecov.io/gh/babel/babylon"><img alt="Codecov Status" src="https://img.shields.io/codecov/c/github/babel/babylon/master.svg?style=flat"></a>
+</p>
+
+ - The latest ECMAScript version enabled by default (ES2017).
+ - Comment attachment.
+ - Support for JSX and Flow.
+ - Support for experimental language proposals.
+
+## Credits
+
+Heavily based on [acorn](https://github.com/marijnh/acorn) and [acorn-jsx](https://github.com/RReverser/acorn-jsx),
+thanks to the awesome work of [@RReverser](https://github.com/RReverser) and [@marijnh](https://github.com/marijnh).
+
+Significant diversions are expected to occur in the future such as streaming, EBNF definitions, sweet.js integration, interspatial parsing and more.
+
+## API
+
+### `babylon.parse(code, [options])`
+
+### Options
+
+- **allowImportExportEverywhere**: By default, `import` and `export`
+  declarations can only appear at a program's top level. Setting this
+  option to `true` allows them anywhere where a statement is allowed.
+
+- **allowReturnOutsideFunction**: By default, a return statement at
+  the top level raises an error. Set this to `true` to accept such
+  code.
+
+- **allowSuperOutsideMethod** TODO
+
+- **sourceType**: Indicate the mode the code should be parsed in. Can be
+  either `"script"` or `"module"`.
+
+- **sourceFilename**: Correlate output AST nodes with their source filename.  Useful when generating code and source maps from the ASTs of multiple input files.
+
+- **plugins**: Array containing the plugins that you want to enable.
+
+### Output
+
+Babylon generates AST according to [Babel AST format][].
+It is based on [ESTree spec][] with the following deviations:
+
+- [Literal][] token is replaced with [StringLiteral][], [NumericLiteral][], [BooleanLiteral][], [NullLiteral][], [RegExpLiteral][]
+- [Property][] token is replaced with [ObjectProperty][] and [ObjectMethod][]
+- [MethodDefinition][] is replaced with [ClassMethod][]
+- [Program][] and [BlockStatement][] contain additional `directives` field with [Directive][] and [DirectiveLiteral][]
+- [ClassMethod][], [ObjectProperty][], and [ObjectMethod][] value property's properties in [FunctionExpression][] is coerced/brought into the main method node.
+
+AST for JSX code is based on [Facebook JSX AST][] with the addition of one node type:
+
+- `JSXText`
+
+[Babel AST format]: https://github.com/babel/babylon/blob/master/ast/spec.md
+[ESTree spec]: https://github.com/estree/estree
+
+[Literal]: https://github.com/estree/estree/blob/master/spec.md#literal
+[Property]: https://github.com/estree/estree/blob/master/spec.md#property
+[MethodDefinition]: https://github.com/estree/estree/blob/master/es6.md#methoddefinition
+
+[StringLiteral]: https://github.com/babel/babylon/blob/master/ast/spec.md#stringliteral
+[NumericLiteral]: https://github.com/babel/babylon/blob/master/ast/spec.md#numericliteral
+[BooleanLiteral]: https://github.com/babel/babylon/blob/master/ast/spec.md#booleanliteral
+[NullLiteral]: https://github.com/babel/babylon/blob/master/ast/spec.md#nullliteral
+[RegExpLiteral]: https://github.com/babel/babylon/blob/master/ast/spec.md#regexpliteral
+[ObjectProperty]: https://github.com/babel/babylon/blob/master/ast/spec.md#objectproperty
+[ObjectMethod]: https://github.com/babel/babylon/blob/master/ast/spec.md#objectmethod
+[ClassMethod]: https://github.com/babel/babylon/blob/master/ast/spec.md#classmethod
+[Program]: https://github.com/babel/babylon/blob/master/ast/spec.md#programs
+[BlockStatement]: https://github.com/babel/babylon/blob/master/ast/spec.md#blockstatement
+[Directive]: https://github.com/babel/babylon/blob/master/ast/spec.md#directive
+[DirectiveLiteral]: https://github.com/babel/babylon/blob/master/ast/spec.md#directiveliteral
+[FunctionExpression]: https://github.com/babel/babylon/blob/master/ast/spec.md#functionexpression
+
+[Facebook JSX AST]: https://github.com/facebook/jsx/blob/master/AST.md
+
+### Semver
+
+Babylon follows semver in most situations. The only thing to note is that some spec-compliancy bug fixes may be released under patch versions.
+
+For example: We push a fix to early error on something like [#107](https://github.com/babel/babylon/pull/107) - multiple default exports per file. That would be considered a bug fix even though it would cause a build to fail.
+
+### Example
+
+```javascript
+require("babylon").parse("code", {
+  // parse in strict mode and allow module declarations
+  sourceType: "module",
+
+  plugins: [
+    // enable jsx and flow syntax
+    "jsx",
+    "flow"
+  ]
+});
+```
+
+### Plugins
+
+ - `jsx`
+ - `flow`
+ - `doExpressions`
+ - `objectRestSpread`
+ - `decorators`
+ - `classProperties`
+ - `exportExtensions`
+ - `asyncGenerators`
+ - `functionBind`
+ - `functionSent`