+++ /dev/null
-### esutils [](http://travis-ci.org/estools/esutils)
-esutils ([esutils](http://github.com/estools/esutils)) is
-utility box for ECMAScript language tools.
-
-### API
-
-### ast
-
-#### ast.isExpression(node)
-
-Returns true if `node` is an Expression as defined in ECMA262 edition 5.1 section
-[11](https://es5.github.io/#x11).
-
-#### ast.isStatement(node)
-
-Returns true if `node` is a Statement as defined in ECMA262 edition 5.1 section
-[12](https://es5.github.io/#x12).
-
-#### ast.isIterationStatement(node)
-
-Returns true if `node` is an IterationStatement as defined in ECMA262 edition
-5.1 section [12.6](https://es5.github.io/#x12.6).
-
-#### ast.isSourceElement(node)
-
-Returns true if `node` is a SourceElement as defined in ECMA262 edition 5.1
-section [14](https://es5.github.io/#x14).
-
-#### ast.trailingStatement(node)
-
-Returns `Statement?` if `node` has trailing `Statement`.
-```js
-if (cond)
- consequent;
-```
-When taking this `IfStatement`, returns `consequent;` statement.
-
-#### ast.isProblematicIfStatement(node)
-
-Returns true if `node` is a problematic IfStatement. If `node` is a problematic `IfStatement`, `node` cannot be represented as an one on one JavaScript code.
-```js
-{
- type: 'IfStatement',
- consequent: {
- type: 'WithStatement',
- body: {
- type: 'IfStatement',
- consequent: {type: 'EmptyStatement'}
- }
- },
- alternate: {type: 'EmptyStatement'}
-}
-```
-The above node cannot be represented as a JavaScript code, since the top level `else` alternate belongs to an inner `IfStatement`.
-
-
-### code
-
-#### code.isDecimalDigit(code)
-
-Return true if provided code is decimal digit.
-
-#### code.isHexDigit(code)
-
-Return true if provided code is hexadecimal digit.
-
-#### code.isOctalDigit(code)
-
-Return true if provided code is octal digit.
-
-#### code.isWhiteSpace(code)
-
-Return true if provided code is white space. White space characters are formally defined in ECMA262.
-
-#### code.isLineTerminator(code)
-
-Return true if provided code is line terminator. Line terminator characters are formally defined in ECMA262.
-
-#### code.isIdentifierStart(code)
-
-Return true if provided code can be the first character of ECMA262 Identifier. They are formally defined in ECMA262.
-
-#### code.isIdentifierPart(code)
-
-Return true if provided code can be the trailing character of ECMA262 Identifier. They are formally defined in ECMA262.
-
-### keyword
-
-#### keyword.isKeywordES5(id, strict)
-
-Returns `true` if provided identifier string is a Keyword or Future Reserved Word
-in ECMA262 edition 5.1. They are formally defined in ECMA262 sections
-[7.6.1.1](http://es5.github.io/#x7.6.1.1) and [7.6.1.2](http://es5.github.io/#x7.6.1.2),
-respectively. If the `strict` flag is truthy, this function additionally checks whether
-`id` is a Keyword or Future Reserved Word under strict mode.
-
-#### keyword.isKeywordES6(id, strict)
-
-Returns `true` if provided identifier string is a Keyword or Future Reserved Word
-in ECMA262 edition 6. They are formally defined in ECMA262 sections
-[11.6.2.1](http://ecma-international.org/ecma-262/6.0/#sec-keywords) and
-[11.6.2.2](http://ecma-international.org/ecma-262/6.0/#sec-future-reserved-words),
-respectively. If the `strict` flag is truthy, this function additionally checks whether
-`id` is a Keyword or Future Reserved Word under strict mode.
-
-#### keyword.isReservedWordES5(id, strict)
-
-Returns `true` if provided identifier string is a Reserved Word in ECMA262 edition 5.1.
-They are formally defined in ECMA262 section [7.6.1](http://es5.github.io/#x7.6.1).
-If the `strict` flag is truthy, this function additionally checks whether `id`
-is a Reserved Word under strict mode.
-
-#### keyword.isReservedWordES6(id, strict)
-
-Returns `true` if provided identifier string is a Reserved Word in ECMA262 edition 6.
-They are formally defined in ECMA262 section [11.6.2](http://ecma-international.org/ecma-262/6.0/#sec-reserved-words).
-If the `strict` flag is truthy, this function additionally checks whether `id`
-is a Reserved Word under strict mode.
-
-#### keyword.isRestrictedWord(id)
-
-Returns `true` if provided identifier string is one of `eval` or `arguments`.
-They are restricted in strict mode code throughout ECMA262 edition 5.1 and
-in ECMA262 edition 6 section [12.1.1](http://ecma-international.org/ecma-262/6.0/#sec-identifiers-static-semantics-early-errors).
-
-#### keyword.isIdentifierNameES5(id)
-
-Return true if provided identifier string is an IdentifierName as specified in
-ECMA262 edition 5.1 section [7.6](https://es5.github.io/#x7.6).
-
-#### keyword.isIdentifierNameES6(id)
-
-Return true if provided identifier string is an IdentifierName as specified in
-ECMA262 edition 6 section [11.6](http://ecma-international.org/ecma-262/6.0/#sec-names-and-keywords).
-
-#### keyword.isIdentifierES5(id, strict)
-
-Return true if provided identifier string is an Identifier as specified in
-ECMA262 edition 5.1 section [7.6](https://es5.github.io/#x7.6). If the `strict`
-flag is truthy, this function additionally checks whether `id` is an Identifier
-under strict mode.
-
-#### keyword.isIdentifierES6(id, strict)
-
-Return true if provided identifier string is an Identifier as specified in
-ECMA262 edition 6 section [12.1](http://ecma-international.org/ecma-262/6.0/#sec-identifiers).
-If the `strict` flag is truthy, this function additionally checks whether `id`
-is an Identifier under strict mode.
-
-### License
-
-Copyright (C) 2013 [Yusuke Suzuki](http://github.com/Constellation)
- (twitter: [@Constellation](http://twitter.com/Constellation)) and other contributors.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
-
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
-DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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