카톡 로그인 기능 백엔드로 바꿈

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="dataSourceStorageLocal">
+    <data-source name="YTMT@nomock.com" uuid="01265fc0-37d6-481f-ac14-42262cda0ac3">
+      <database-info product="MySQL" version="5.7.20-0ubuntu0.16.04.1" jdbc-version="4.0" driver-name="MySQL Connector Java" driver-version="mysql-connector-java-5.1.44 ( Revision: b3cda4f864902ffdde495b9df93937c3e20009be )">
+        <extra-name-characters>#@</extra-name-characters>
+        <identifier-quote-string>`</identifier-quote-string>
+      </database-info>
+      <case-sensitivity plain-identifiers="exact" quoted-identifiers="exact" />
+      <secret-storage>master_key</secret-storage>
+      <user-name>ytmt</user-name>
+      <introspection-schemas>*:YTMT</introspection-schemas>
+    </data-source>
+  </component>
+</project>
\ No newline at end of file

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
+    <data-source source="LOCAL" name="YTMT@nomock.com" uuid="01265fc0-37d6-481f-ac14-42262cda0ac3">
+      <driver-ref>mysql</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>com.mysql.jdbc.Driver</jdbc-driver>
+      <jdbc-url>jdbc:mysql://nomock.com:3306/YTMT</jdbc-url>
+      <driver-properties>
+        <property name="autoReconnect" value="true" />
+        <property name="zeroDateTimeBehavior" value="convertToNull" />
+        <property name="tinyInt1isBit" value="false" />
+        <property name="characterEncoding" value="utf8" />
+        <property name="characterSetResults" value="utf8" />
+        <property name="yearIsDateType" value="false" />
+      </driver-properties>
+    </data-source>
+  </component>
+</project>
\ No newline at end of file

+<?xml version="1.0" encoding="UTF-8"?>
+<dataSource name="YTMT@nomock.com">
+  <database-model serializer="dbm" rdbms="MYSQL" format-version="4.4">
+    <root id="1"/>
+    <schema id="2" parent="1" name="YTMT">
+      <Current>1</Current>
+      <Visible>1</Visible>
+    </schema>
+    <schema id="3" parent="1" name="information_schema"/>
+    <table id="4" parent="2" name="toon"/>
+    <table id="5" parent="2" name="user"/>
+    <table id="6" parent="2" name="user_toon_relation"/>
+    <column id="7" parent="4" name="toon_index">
+      <Position>1</Position>
+      <DataType>int(11)|0</DataType>
+      <NotNull>1</NotNull>
+    </column>
+    <column id="8" parent="4" name="name">
+      <Position>2</Position>
+      <DataType>text|0</DataType>
+      <NotNull>1</NotNull>
+    </column>
+    <column id="9" parent="4" name="thum_link">
+      <Position>3</Position>
+      <DataType>text|0</DataType>
+      <NotNull>1</NotNull>
+    </column>
+    <column id="10" parent="4" name="webtoon_link">
+      <Position>4</Position>
+      <DataType>text|0</DataType>
+      <NotNull>1</NotNull>
+    </column>
+    <column id="11" parent="4" name="week">
+      <Position>5</Position>
+      <DataType>text|0</DataType>
+      <NotNull>1</NotNull>
+    </column>
+    <key id="12" parent="4" name="PRIMARY">
+      <NameSurrogate>1</NameSurrogate>
+      <ColNames>toon_index</ColNames>
+      <Primary>1</Primary>
+    </key>
+    <column id="13" parent="5" name="id">
+      <Position>1</Position>
+      <DataType>bigint(20)|0</DataType>
+      <NotNull>1</NotNull>
+    </column>
+    <key id="14" parent="5" name="PRIMARY">
+      <NameSurrogate>1</NameSurrogate>
+      <ColNames>id</ColNames>
+      <Primary>1</Primary>
+    </key>
+    <column id="15" parent="6" name="user_id">
+      <Position>1</Position>
+      <DataType>bigint(20)|0</DataType>
+      <NotNull>1</NotNull>
+    </column>
+    <column id="16" parent="6" name="toon_index">
+      <Position>2</Position>
+      <DataType>int(11)|0</DataType>
+      <NotNull>1</NotNull>
+    </column>
+    <column id="17" parent="6" name="recent">
+      <Position>3</Position>
+      <DataType>text|0</DataType>
+      <NotNull>1</NotNull>
+    </column>
+    <index id="18" parent="6" name="toon_index">
+      <ColNames>toon_index</ColNames>
+    </index>
+    <index id="19" parent="6" name="user_id">
+      <ColNames>user_id</ColNames>
+    </index>
+    <foreign-key id="20" parent="6" name="user_toon_relation_ibfk_1">
+      <ColNames>user_id</ColNames>
+      <RefSchemaName>YTMT</RefSchemaName>
+      <RefTableName>user</RefTableName>
+      <RefColNames>id</RefColNames>
+    </foreign-key>
+    <foreign-key id="21" parent="6" name="user_toon_relation_ibfk_2">
+      <ColNames>toon_index</ColNames>
+      <RefSchemaName>YTMT</RefSchemaName>
+      <RefTableName>toon</RefTableName>
+      <RefColNames>toon_index</RefColNames>
+    </foreign-key>
+  </database-model>
+</dataSource>
\ No newline at end of file

@@ -5,11 +5,24 @@ var logger = require('morgan');
 var cookieParser = require('cookie-parser');
 var cookieParser = require('cookie-parser');
 var bodyParser = require('body-parser');
 var bodyParser = require('body-parser');
 
 
+var mysql      = require('mysql');
 var cheerio = require('cheerio');
 var cheerio = require('cheerio');
 var request = require('request');
 var request = require('request');
 var index = require('./routes/index');
 var index = require('./routes/index');
 var users = require('./routes/users');
 var users = require('./routes/users');
 var mytoons = require('./routes/mytoons');
 var mytoons = require('./routes/mytoons');
+var passport = require('passport');
+var setting = require('./routes/setting');
+var session = require('express-session');
+
+passport.serializeUser(function(user, done) {
+    console.log('serialize');
+    done(null, user);
+});
+passport.deserializeUser(function(obj, done) {
+    console.log('deserialize');
+    done(null, obj);
+});
 
 
 var app = express();
 var app = express();
 
 
@@ -25,9 +38,26 @@ app.use(bodyParser.urlencoded({ extended: false }));
 app.use(cookieParser());
 app.use(cookieParser());
 app.use(express.static(path.join(__dirname, 'public')));
 app.use(express.static(path.join(__dirname, 'public')));
 
 
+connection = mysql.createConnection({
+    host     : 'nomock.com',
+    user     : 'ytmt',
+    password : 'ytmt',
+    port     : 3306,
+    database : 'YTMT'
+});
+
+app.use(session({
+    secret: 'secrettexthere',
+    saveUninitialized: true,
+    resave: true
+}));
+
+app.use(passport.initialize());
+app.use(passport.session());
 app.use('/', index);
 app.use('/', index);
 app.use('/users', users);
 app.use('/users', users);
 app.use('/mytoons', mytoons);
 app.use('/mytoons', mytoons);
+app.use('/setting', setting);
 
 
 //app.use(express.static('views'));
 //app.use(express.static('views'));
 
 
@@ -49,29 +79,6 @@ app.use(function(err, req, res, next) {
   res.render('error');
   res.render('error');
 });
 });
 
 
-updatedToon = new Array();
-
-getUpdatedToons();
-
-function getUpdatedToons(){
-
-    var allToonsUrl = "http://comic.naver.com/webtoon/weekday.nhn";
-    request(allToonsUrl, function(err, res, html){
-        if(!err){
-            var $ = cheerio.load(html);
-
-            $(".thumb").has('.ico_updt').next().each(function() {
-                var link = $(this);
-
-                var toonName = link.text();
-                var toonHref = link.attr('href');
-                updatedToon[toonName]=toonHref;
-            });
-
-        }
-    });
-}
-
 
 
 
 
 
 

+../acorn/bin/acorn
\ No newline at end of file

+../babel-cli/bin/babel.js
\ No newline at end of file

+../babel-cli/bin/babel-doctor.js
\ No newline at end of file

+../babel-cli/bin/babel-external-helpers.js
\ No newline at end of file

+../babel-cli/bin/babel-node.js
\ No newline at end of file

+../babylon/bin/babylon.js
\ No newline at end of file

+../eslint/bin/eslint.js
\ No newline at end of file

+../esprima/bin/esparse.js
\ No newline at end of file

+../esprima/bin/esvalidate.js
\ No newline at end of file

+../hogan.js/bin/hulk
\ No newline at end of file

+../js-yaml/bin/js-yaml.js
\ No newline at end of file

+../jsesc/bin/jsesc
\ No newline at end of file

+../json5/lib/cli.js
\ No newline at end of file

+../knex/bin/cli.js
\ No newline at end of file

+../loose-envify/cli.js
\ No newline at end of file

+../nopt/bin/nopt.js
\ No newline at end of file

+../regjsparser/bin/parser
\ No newline at end of file

+../semver/bin/semver
\ No newline at end of file

+../shelljs/bin/shjs
\ No newline at end of file

+../user-home/cli.js
\ No newline at end of file

+This software is dual-licensed under the ISC and MIT licenses.
+You may use this software under EITHER of the following licenses.
+
+----------
+
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+----------
+
+Copyright Isaac Z. Schlueter and Contributors
+All rights reserved.
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.

+# abbrev-js
+
+Just like [ruby's Abbrev](http://apidock.com/ruby/Abbrev).
+
+Usage:
+
+    var abbrev = require("abbrev");
+    abbrev("foo", "fool", "folding", "flop");
+    
+    // returns:
+    { fl: 'flop'
+    , flo: 'flop'
+    , flop: 'flop'
+    , fol: 'folding'
+    , fold: 'folding'
+    , foldi: 'folding'
+    , foldin: 'folding'
+    , folding: 'folding'
+    , foo: 'foo'
+    , fool: 'fool'
+    }
+
+This is handy for command-line scripts, or other cases where you want to be able to accept shorthands.

+module.exports = exports = abbrev.abbrev = abbrev
+
+abbrev.monkeyPatch = monkeyPatch
+
+function monkeyPatch () {
+  Object.defineProperty(Array.prototype, 'abbrev', {
+    value: function () { return abbrev(this) },
+    enumerable: false, configurable: true, writable: true
+  })
+
+  Object.defineProperty(Object.prototype, 'abbrev', {
+    value: function () { return abbrev(Object.keys(this)) },
+    enumerable: false, configurable: true, writable: true
+  })
+}
+
+function abbrev (list) {
+  if (arguments.length !== 1 || !Array.isArray(list)) {
+    list = Array.prototype.slice.call(arguments, 0)
+  }
+  for (var i = 0, l = list.length, args = [] ; i < l ; i ++) {
+    args[i] = typeof list[i] === "string" ? list[i] : String(list[i])
+  }
+
+  // sort them lexicographically, so that they're next to their nearest kin
+  args = args.sort(lexSort)
+
+  // walk through each, seeing how much it has in common with the next and previous
+  var abbrevs = {}
+    , prev = ""
+  for (var i = 0, l = args.length ; i < l ; i ++) {
+    var current = args[i]
+      , next = args[i + 1] || ""
+      , nextMatches = true
+      , prevMatches = true
+    if (current === next) continue
+    for (var j = 0, cl = current.length ; j < cl ; j ++) {
+      var curChar = current.charAt(j)
+      nextMatches = nextMatches && curChar === next.charAt(j)
+      prevMatches = prevMatches && curChar === prev.charAt(j)
+      if (!nextMatches && !prevMatches) {
+        j ++
+        break
+      }
+    }
+    prev = current
+    if (j === cl) {
+      abbrevs[current] = current
+      continue
+    }
+    for (var a = current.substr(0, j) ; j <= cl ; j ++) {
+      abbrevs[a] = current
+      a += current.charAt(j)
+    }
+  }
+  return abbrevs
+}
+
+function lexSort (a, b) {
+  return a === b ? 0 : a > b ? 1 : -1
+}

+{
+  "_args": [
+    [
+      {
+        "raw": "abbrev@1",
+        "scope": null,
+        "escapedName": "abbrev",
+        "name": "abbrev",
+        "rawSpec": "1",
+        "spec": ">=1.0.0 <2.0.0",
+        "type": "range"
+      },
+      "/Users/kanghyeontae/IdeaProjects/YTMT/node_modules/nopt"
+    ]
+  ],
+  "_from": "abbrev@>=1.0.0 <2.0.0",
+  "_id": "abbrev@1.1.1",
+  "_inCache": true,
+  "_location": "/abbrev",
+  "_nodeVersion": "8.5.0",
+  "_npmOperationalInternal": {
+    "host": "s3://npm-registry-packages",
+    "tmp": "tmp/abbrev-1.1.1.tgz_1506566833068_0.05750026390887797"
+  },
+  "_npmUser": {
+    "name": "isaacs",
+    "email": "i@izs.me"
+  },
+  "_npmVersion": "5.4.2",
+  "_phantomChildren": {},
+  "_requested": {
+    "raw": "abbrev@1",
+    "scope": null,
+    "escapedName": "abbrev",
+    "name": "abbrev",
+    "rawSpec": "1",
+    "spec": ">=1.0.0 <2.0.0",
+    "type": "range"
+  },
+  "_requiredBy": [
+    "/nopt"
+  ],
+  "_resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
+  "_shasum": "f8f2c887ad10bf67f634f005b6987fed3179aac8",
+  "_shrinkwrap": null,
+  "_spec": "abbrev@1",
+  "_where": "/Users/kanghyeontae/IdeaProjects/YTMT/node_modules/nopt",
+  "author": {
+    "name": "Isaac Z. Schlueter",
+    "email": "i@izs.me"
+  },
+  "bugs": {
+    "url": "https://github.com/isaacs/abbrev-js/issues"
+  },
+  "dependencies": {},
+  "description": "Like ruby's abbrev module, but in js",
+  "devDependencies": {
+    "tap": "^10.1"
+  },
+  "directories": {},
+  "dist": {
+    "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==",
+    "shasum": "f8f2c887ad10bf67f634f005b6987fed3179aac8",
+    "tarball": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz"
+  },
+  "files": [
+    "abbrev.js"
+  ],
+  "gitHead": "a9ee72ebc8fe3975f1b0c7aeb3a8f2a806a432eb",
+  "homepage": "https://github.com/isaacs/abbrev-js#readme",
+  "license": "ISC",
+  "main": "abbrev.js",
+  "maintainers": [
+    {
+      "name": "gabra",
+      "email": "jerry+1@npmjs.com"
+    },
+    {
+      "name": "isaacs",
+      "email": "i@izs.me"
+    }
+  ],
+  "name": "abbrev",
+  "optionalDependencies": {},
+  "readme": "ERROR: No README data found!",
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/isaacs/abbrev-js.git"
+  },
+  "scripts": {
+    "postpublish": "git push origin --all; git push origin --tags",
+    "postversion": "npm publish",
+    "preversion": "npm test",
+    "test": "tap test.js --100"
+  },
+  "version": "1.1.1"
+}

+Copyright (C) 2012-2014 by Ingvar Stepanyan
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

+# Acorn-JSX
+
+[![Build Status](https://travis-ci.org/RReverser/acorn-jsx.svg?branch=master)](https://travis-ci.org/RReverser/acorn-jsx)
+[![NPM version](https://img.shields.io/npm/v/acorn-jsx.svg)](https://www.npmjs.org/package/acorn-jsx)
+
+This is plugin for [Acorn](http://marijnhaverbeke.nl/acorn/) - a tiny, fast JavaScript parser, written completely in JavaScript.
+
+It was created as an experimental alternative, faster [React.js JSX](http://facebook.github.io/react/docs/jsx-in-depth.html) parser.
+
+According to [benchmarks](https://github.com/RReverser/acorn-jsx/blob/master/test/bench.html), Acorn-JSX is 2x faster than official [Esprima-based parser](https://github.com/facebook/esprima) when location tracking is turned on in both (call it "source maps enabled mode"). At the same time, it consumes all the ES6+JSX syntax that can be consumed by Esprima-FB (this is proved by [official tests](https://github.com/RReverser/acorn-jsx/blob/master/test/tests-jsx.js)).
+
+**UPDATE [14-Apr-2015]**: Facebook implementation started [deprecation process](https://github.com/facebook/esprima/issues/111) in favor of Acorn + Acorn-JSX + Babel for parsing and transpiling JSX syntax.
+
+## Transpiler
+
+Please note that this tool only parses source code to JSX AST, which is useful for various language tools and services. If you want to transpile your code to regular ES5-compliant JavaScript with source map, check out the [babel transpiler](https://babeljs.io/) which uses `acorn-jsx` under the hood.
+
+## Usage
+
+You can use module directly in order to get Acorn instance with plugin installed:
+
+```javascript
+var acorn = require('acorn-jsx');
+```
+
+Or you can use `inject.js` for injecting plugin into your own version of Acorn like following:
+
+```javascript
+var acorn = require('acorn-jsx/inject')(require('./custom-acorn'));
+```
+
+Then, use `plugins` option whenever you need to support JSX while parsing:
+
+```javascript
+var ast = acorn.parse(code, {
+  plugins: { jsx: true }
+});
+```
+
+Note that official spec doesn't support mix of XML namespaces and object-style access in tag names (#27) like in `<namespace:Object.Property />`, so it was deprecated in `acorn-jsx@3.0`. If you still want to opt-in to support of such constructions, you can pass the following option:
+
+```javascript
+var ast = acorn.parse(code, {
+  plugins: {
+    jsx: { allowNamespacedObjects: true }
+  }
+});
+```
+
+Also, since most apps use pure React transformer, a new option was introduced that allows to prohibit namespaces completely:
+
+```javascript
+var ast = acorn.parse(code, {
+  plugins: {
+    jsx: { allowNamespaces: false }
+  }
+});
+```
+
+Note that by default `allowNamespaces` is enabled for spec compliancy.
+
+## License
+
+This plugin is issued under the [MIT license](./LICENSE).

+'use strict';
+
+module.exports = require('./inject')(require('acorn'));

+../acorn/bin/acorn
\ No newline at end of file

+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+insert_final_newline = true

+* text eol=lf

+/.tern-port
+/test
+/local

+{
+  "plugins": {
+    "node": true,
+    "es_modules": true
+  }
+}
\ No newline at end of file

+language: node_js
+sudo: false
+node_js:
+  - '0.12'
+  - '4'
+  - '5'
+  - '6'

+List of Acorn contributors. Updated before every release.
+
+Adrian Rakovsky
+Alistair Braidwood
+Amila Welihinda
+Andres Suarez
+Angelo
+Aparajita Fishman
+Arian Stolwijk
+Artem Govorov
+Brandon Mills
+Charles Hughes
+Conrad Irwin
+Daniel Tschinder
+David Bonnet
+Domenico Matteo
+ForbesLindesay
+Forbes Lindesay
+Gilad Peleg
+impinball
+Ingvar Stepanyan
+Jackson Ray Hamilton
+Jesse McCarthy
+Jiaxing Wang
+Joel Kemp
+Johannes Herr
+Jordan Klassen
+Jürg Lehni
+keeyipchan
+Keheliya Gallaba
+Kevin Irish
+Kevin Kwok
+krator
+Marijn Haverbeke
+Martin Carlberg
+Mathias Bynens
+Mathieu 'p01' Henri
+Matthew Bastien
+Max Schaefer
+Max Zerzouri
+Mihai Bazon
+Mike Rennie
+Nicholas C. Zakas
+Nick Fitzgerald
+Olivier Thomann
+Oskar Schöldström
+Paul Harper
+Peter Rust
+PlNG
+Prayag Verma
+ReadmeCritic
+r-e-d
+Richard Gibson
+Rich Harris
+Rich-Harris
+Sebastian McKenzie
+Timothy Gu
+Toru Nagashima
+zsjforcn

+## 3.3.0 (2016-07-25)
+
+### Bug fixes
+
+Fix bug in tokenizing of regexp operator after a function declaration.
+
+Fix parser crash when parsing an array pattern with a hole.
+
+### New features
+
+Implement check against complex argument lists in functions that
+enable strict mode in ES7.
+
+## 3.2.0 (2016-06-07)
+
+### Bug fixes
+
+Improve handling of lack of unicode regexp support in host
+environment.
+
+Properly reject shorthand properties whose name is a keyword.
+
+Don't crash when the loose parser is called without options object.
+
+### New features
+
+Visitors created with `visit.make` now have their base as _prototype_,
+rather than copying properties into a fresh object.
+
+Make it possible to use `visit.ancestor` with a walk state.
+
+## 3.1.0 (2016-04-18)
+
+### Bug fixes
+
+Fix issue where the loose parser created invalid TemplateElement nodes
+for unclosed template literals.
+
+Properly tokenize the division operator directly after a function
+expression.
+
+Allow trailing comma in destructuring arrays.
+
+### New features
+
+The walker now allows defining handlers for `CatchClause` nodes.
+
+## 3.0.4 (2016-02-25)
+
+### Fixes
+
+Allow update expressions as left-hand-side of the ES7 exponential
+operator.
+
+## 3.0.2 (2016-02-10)
+
+### Fixes
+
+Fix bug that accidentally made `undefined` a reserved word when
+parsing ES7.
+
+## 3.0.0 (2016-02-10)
+
+### Breaking changes
+
+The default value of the `ecmaVersion` option is now 6 (used to be 5).
+
+Support for comprehension syntax (which was dropped from the draft
+spec) has been removed.
+
+### Fixes
+
+`let` and `yield` are now “contextual keywords”, meaning you can
+mostly use them as identifiers in ES5 non-strict code.
+
+A parenthesized class or function expression after `export default` is
+now parsed correctly.
+
+### New features
+
+When `ecmaVersion` is set to 7, Acorn will parse the exponentiation
+operator (`**`).
+
+The identifier character ranges are now based on Unicode 8.0.0.
+
+Plugins can now override the `raiseRecoverable` method to override the
+way non-critical errors are handled.
+
+## 2.7.0 (2016-01-04)
+
+### Fixes
+
+Stop allowing rest parameters in setters.
+
+Make sure the loose parser always attaches a `local` property to
+`ImportNamespaceSpecifier` nodes.
+
+Disallow `y` rexexp flag in ES5.
+
+Disallow `\00` and `\000` escapes in strict mode.
+
+Raise an error when an import name is a reserved word.
+
+## 2.6.4 (2015-11-12)
+
+### Fixes
+
+Fix crash in loose parser when parsing invalid object pattern.
+
+### New features
+
+Support plugins in the loose parser.
+
+## 2.6.2 (2015-11-10)
+
+### Fixes
+
+Don't crash when no options object is passed.
+
+## 2.6.0 (2015-11-09)
+
+### Fixes
+
+Add `await` as a reserved word in module sources.
+
+Disallow `yield` in a parameter default value for a generator.
+
+Forbid using a comma after a rest pattern in an array destructuring.
+
+### New features
+
+Support parsing stdin in command-line tool.
+
+## 2.5.2 (2015-10-27)
+
+### Fixes
+
+Fix bug where the walker walked an exported `let` statement as an
+expression.
+
+## 2.5.0 (2015-10-27)
+
+### Fixes
+
+Fix tokenizer support in the command-line tool.
+
+In the loose parser, don't allow non-string-literals as import
+sources.
+
+Stop allowing `new.target` outside of functions.
+
+Remove legacy `guard` and `guardedHandler` properties from try nodes.
+
+Stop allowing multiple `__proto__` properties on an object literal in
+strict mode.
+
+Don't allow rest parameters to be non-identifier patterns.
+
+Check for duplicate paramter names in arrow functions.

+Copyright (C) 2012-2016 by various contributors (see AUTHORS)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

+#!/usr/bin/env node
+'use strict';
+
+var path = require('path');
+var fs = require('fs');
+var acorn = require('../dist/acorn.js');
+
+var infile;
+var forceFile;
+var silent = false;
+var compact = false;
+var tokenize = false;
+var options = {}
+
+function help(status) {
+  var print = (status == 0) ? console.log : console.error
+  print("usage: " + path.basename(process.argv[1]) + " [--ecma3|--ecma5|--ecma6|--ecma7]")
+  print("        [--tokenize] [--locations] [---allow-hash-bang] [--compact] [--silent] [--module] [--help] [--] [infile]")
+  process.exit(status)
+}
+
+for (var i = 2; i < process.argv.length; ++i) {
+  var arg = process.argv[i]
+  if ((arg == "-" || arg[0] != "-") && !infile) infile = arg
+  else if (arg == "--" && !infile && i + 2 == process.argv.length) forceFile = infile = process.argv[++i]
+  else if (arg == "--ecma3") options.ecmaVersion = 3
+  else if (arg == "--ecma5") options.ecmaVersion = 5
+  else if (arg == "--ecma6") options.ecmaVersion = 6
+  else if (arg == "--ecma7") options.ecmaVersion = 7
+  else if (arg == "--locations") options.locations = true
+  else if (arg == "--allow-hash-bang") options.allowHashBang = true
+  else if (arg == "--silent") silent = true
+  else if (arg == "--compact") compact = true
+  else if (arg == "--help") help(0)
+  else if (arg == "--tokenize") tokenize = true
+  else if (arg == "--module") options.sourceType = 'module'
+  else help(1)
+}
+
+function run(code) {
+  var result
+  if (!tokenize) {
+    try { result = acorn.parse(code, options) }
+    catch(e) { console.error(e.message); process.exit(1) }
+  } else {
+    result = []
+    var tokenizer = acorn.tokenizer(code, options), token
+    while (true) {
+      try { token = tokenizer.getToken() }
+      catch(e) { console.error(e.message); process.exit(1) }
+      result.push(token)
+      if (token.type == acorn.tokTypes.eof) break
+    }
+  }
+  if (!silent) console.log(JSON.stringify(result, null, compact ? null : 2))
+}
+
+if (forceFile || infile && infile != "-") {
+  run(fs.readFileSync(infile, "utf8"))
+} else {
+  var code = ""
+  process.stdin.resume()
+  process.stdin.on("data", function (chunk) { return code += chunk; })
+  process.stdin.on("end", function () { return run(code); })
+}
\ No newline at end of file

+'use strict';
+
+// Which Unicode version should be used?
+var version = '9.0.0';
+
+var start = require('unicode-' + version + '/Binary_Property/ID_Start/code-points.js')
+    .filter(function(ch) { return ch > 0x7f; });
+var last = -1;
+var cont = [0x200c, 0x200d].concat(require('unicode-' + version + '/Binary_Property/ID_Continue/code-points.js')
+    .filter(function(ch) { return ch > 0x7f && search(start, ch, last + 1) == -1; }));
+
+function search(arr, ch, starting) {
+  for (var i = starting; arr[i] <= ch && i < arr.length; last = i++)
+    if (arr[i] === ch)
+      return i;
+  return -1;
+}
+
+function pad(str, width) {
+  while (str.length < width) str = "0" + str;
+  return str;
+}
+
+function esc(code) {
+  var hex = code.toString(16);
+  if (hex.length <= 2) return "\\x" + pad(hex, 2);
+  else return "\\u" + pad(hex, 4);
+}
+
+function generate(chars) {
+  var astral = [], re = "";
+  for (var i = 0, at = 0x10000; i < chars.length; i++) {
+    var from = chars[i], to = from;
+    while (i < chars.length - 1 && chars[i + 1] == to + 1) {
+      i++;
+      to++;
+    }
+    if (to <= 0xffff) {
+      if (from == to) re += esc(from);
+      else if (from + 1 == to) re += esc(from) + esc(to);
+      else re += esc(from) + "-" + esc(to);
+    } else {
+      astral.push(from - at, to - from);
+      at = to;
+    }
+  }
+  return {nonASCII: re, astral: astral};
+}
+
+var startData = generate(start), contData = generate(cont);
+
+console.log("let nonASCIIidentifierStartChars = \"" + startData.nonASCII + "\"");
+console.log("let nonASCIIidentifierChars = \"" + contData.nonASCII + "\"");
+console.log("const astralIdentifierStartCodes = " + JSON.stringify(startData.astral));
+console.log("const astralIdentifierCodes = " + JSON.stringify(contData.astral));

+# Combine existing list of authors with everyone known in git, sort, add header.
+tail --lines=+3 AUTHORS > AUTHORS.tmp
+git log --format='%aN' | grep -v abraidwood >> AUTHORS.tmp
+echo -e "List of Acorn contributors. Updated before every release.\n" > AUTHORS
+sort -u AUTHORS.tmp >> AUTHORS
+rm -f AUTHORS.tmp

+{
+  "_args": [
+    [
+      {
+        "raw": "acorn@^3.0.4",
+        "scope": null,
+        "escapedName": "acorn",
+        "name": "acorn",
+        "rawSpec": "^3.0.4",
+        "spec": ">=3.0.4 <4.0.0",
+        "type": "range"
+      },
+      "/Users/kanghyeontae/IdeaProjects/YTMT/node_modules/acorn-jsx"
+    ]
+  ],
+  "_from": "acorn@>=3.0.4 <4.0.0",
+  "_id": "acorn@3.3.0",
+  "_inCache": true,
+  "_location": "/acorn-jsx/acorn",
+  "_nodeVersion": "6.3.0",
+  "_npmOperationalInternal": {
+    "host": "packages-16-east.internal.npmjs.com",
+    "tmp": "tmp/acorn-3.3.0.tgz_1469481913382_0.3856039580423385"
+  },
+  "_npmUser": {
+    "name": "marijn",
+    "email": "marijnh@gmail.com"
+  },
+  "_npmVersion": "3.10.3",
+  "_phantomChildren": {},
+  "_requested": {
+    "raw": "acorn@^3.0.4",
+    "scope": null,
+    "escapedName": "acorn",
+    "name": "acorn",
+    "rawSpec": "^3.0.4",
+    "spec": ">=3.0.4 <4.0.0",
+    "type": "range"
+  },
+  "_requiredBy": [
+    "/acorn-jsx"
+  ],
+  "_resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+  "_shasum": "45e37fb39e8da3f25baee3ff5369e2bb5f22017a",
+  "_shrinkwrap": null,
+  "_spec": "acorn@^3.0.4",
+  "_where": "/Users/kanghyeontae/IdeaProjects/YTMT/node_modules/acorn-jsx",
+  "bin": {
+    "acorn": "./bin/acorn"
+  },
+  "bugs": {
+    "url": "https://github.com/ternjs/acorn/issues"
+  },
+  "contributors": [
+    {
+      "name": "List of Acorn contributors. Updated before every release."
+    },
+    {
+      "name": "Adrian Rakovsky"
+    },
+    {
+      "name": "Alistair Braidwood"
+    },
+    {
+      "name": "Amila Welihinda"
+    },
+    {
+      "name": "Andres Suarez"
+    },
+    {
+      "name": "Angelo"
+    },
+    {
+      "name": "Aparajita Fishman"
+    },
+    {
+      "name": "Arian Stolwijk"
+    },
+    {
+      "name": "Artem Govorov"
+    },
+    {
+      "name": "Brandon Mills"
+    },
+    {
+      "name": "Charles Hughes"
+    },
+    {
+      "name": "Conrad Irwin"
+    },
+    {
+      "name": "Daniel Tschinder"
+    },
+    {
+      "name": "David Bonnet"
+    },
+    {
+      "name": "Domenico Matteo"
+    },
+    {
+      "name": "ForbesLindesay"
+    },
+    {
+      "name": "Forbes Lindesay"
+    },
+    {
+      "name": "Gilad Peleg"
+    },
+    {
+      "name": "impinball"
+    },
+    {
+      "name": "Ingvar Stepanyan"
+    },
+    {
+      "name": "Jackson Ray Hamilton"
+    },
+    {
+      "name": "Jesse McCarthy"
+    },
+    {
+      "name": "Jiaxing Wang"
+    },
+    {
+      "name": "Joel Kemp"
+    },
+    {
+      "name": "Johannes Herr"
+    },
+    {
+      "name": "Jordan Klassen"
+    },
+    {
+      "name": "Jürg Lehni"
+    },
+    {
+      "name": "keeyipchan"
+    },
+    {
+      "name": "Keheliya Gallaba"
+    },
+    {
+      "name": "Kevin Irish"
+    },
+    {
+      "name": "Kevin Kwok"
+    },
+    {
+      "name": "krator"
+    },
+    {
+      "name": "Marijn Haverbeke"
+    },
+    {
+      "name": "Martin Carlberg"
+    },
+    {
+      "name": "Mathias Bynens"
+    },
+    {
+      "name": "Mathieu 'p01' Henri"
+    },
+    {
+      "name": "Matthew Bastien"
+    },
+    {
+      "name": "Max Schaefer"
+    },
+    {
+      "name": "Max Zerzouri"
+    },
+    {
+      "name": "Mihai Bazon"
+    },
+    {
+      "name": "Mike Rennie"
+    },
+    {
+      "name": "Nicholas C. Zakas"
+    },
+    {
+      "name": "Nick Fitzgerald"
+    },
+    {
+      "name": "Olivier Thomann"
+    },
+    {
+      "name": "Oskar Schöldström"
+    },
+    {
+      "name": "Paul Harper"
+    },
+    {
+      "name": "Peter Rust"
+    },
+    {
+      "name": "PlNG"
+    },
+    {
+      "name": "Prayag Verma"
+    },
+    {
+      "name": "ReadmeCritic"
+    },
+    {
+      "name": "r-e-d"
+    },
+    {
+      "name": "Richard Gibson"
+    },
+    {
+      "name": "Rich Harris"
+    },
+    {
+      "name": "Rich-Harris"
+    },
+    {
+      "name": "Sebastian McKenzie"
+    },
+    {
+      "name": "Timothy Gu"
+    },
+    {
+      "name": "Toru Nagashima"
+    },
+    {
+      "name": "zsjforcn"
+    }
+  ],
+  "dependencies": {},
+  "description": "ECMAScript parser",
+  "devDependencies": {
+    "rollup": "^0.34.1",
+    "rollup-plugin-buble": "^0.11.0",
+    "unicode-9.0.0": "^0.7.0"
+  },
+  "directories": {},
+  "dist": {
+    "shasum": "45e37fb39e8da3f25baee3ff5369e2bb5f22017a",
+    "tarball": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz"
+  },
+  "engines": {
+    "node": ">=0.4.0"
+  },
+  "gitHead": "693c5fe9257c3e114a7097dc9196d6e484e52809",
+  "homepage": "https://github.com/ternjs/acorn",
+  "jsnext:main": "dist/acorn.es.js",
+  "license": "MIT",
+  "main": "dist/acorn.js",
+  "maintainers": [
+    {
+      "name": "marijn",
+      "email": "marijnh@gmail.com"
+    },
+    {
+      "name": "rreverser",
+      "email": "me@rreverser.com"
+    }
+  ],
+  "name": "acorn",
+  "optionalDependencies": {},
+  "readme": "ERROR: No README data found!",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/ternjs/acorn.git"
+  },
+  "scripts": {
+    "build": "npm run build:main && npm run build:walk && npm run build:loose && npm run build:bin",
+    "build:bin": "rollup -c rollup/config.bin.js",
+    "build:loose": "rollup -c rollup/config.loose.js",
+    "build:main": "rollup -c rollup/config.main.js",
+    "build:walk": "rollup -c rollup/config.walk.js",
+    "prepublish": "npm test",
+    "pretest": "npm run build",
+    "test": "node test/run.js"
+  },
+  "version": "3.3.0"
+}

+import buble from 'rollup-plugin-buble'
+
+export default {
+  entry: 'src/bin/acorn.js',
+  dest: 'bin/acorn',
+  format: 'cjs',
+  banner: '#!/usr/bin/env node',
+  external: [ 'fs', 'path', 'acorn' ],
+  paths: {
+    acorn: '../dist/acorn.js'
+  },
+  plugins: [
+    buble()
+  ]
+}

+import buble from 'rollup-plugin-buble'
+
+export default {
+  entry: 'src/loose/index.js',
+  moduleName: 'acorn.loose',
+  external: [ 'acorn' ],
+  paths: {
+    acorn: './acorn.js'
+  },
+  globals: {
+    acorn: 'acorn'
+  },
+  targets: [
+    { dest: 'dist/acorn_loose.js', format: 'umd' },
+    { dest: 'dist/acorn_loose.es.js', format: 'es' }
+  ],
+  plugins: [
+    buble()
+  ]
+}

+import buble from 'rollup-plugin-buble';
+
+export default {
+	entry: 'src/index.js',
+	moduleName: 'acorn',
+	plugins: [ buble() ],
+	targets: [
+		{ dest: 'dist/acorn.js', format: 'umd' },
+		{ dest: 'dist/acorn.es.js', format: 'es' }
+	]
+};

+import buble from 'rollup-plugin-buble';
+
+export default {
+	entry: 'src/walk/index.js',
+	moduleName: 'acorn.walk',
+	plugins: [ buble() ],
+	targets: [
+		{ dest: 'dist/walk.js', format: 'umd' },
+		{ dest: 'dist/walk.es.js', format: 'es' }
+	]
+};

+import {basename} from "path"
+import {readFileSync as readFile} from "fs"
+import * as acorn from "acorn"
+
+let infile, forceFile, silent = false, compact = false, tokenize = false
+const options = {}
+
+function help(status) {
+  const print = (status == 0) ? console.log : console.error
+  print("usage: " + basename(process.argv[1]) + " [--ecma3|--ecma5|--ecma6|--ecma7]")
+  print("        [--tokenize] [--locations] [---allow-hash-bang] [--compact] [--silent] [--module] [--help] [--] [infile]")
+  process.exit(status)
+}
+
+for (let i = 2; i < process.argv.length; ++i) {
+  const arg = process.argv[i]
+  if ((arg == "-" || arg[0] != "-") && !infile) infile = arg
+  else if (arg == "--" && !infile && i + 2 == process.argv.length) forceFile = infile = process.argv[++i]
+  else if (arg == "--ecma3") options.ecmaVersion = 3
+  else if (arg == "--ecma5") options.ecmaVersion = 5
+  else if (arg == "--ecma6") options.ecmaVersion = 6
+  else if (arg == "--ecma7") options.ecmaVersion = 7
+  else if (arg == "--locations") options.locations = true
+  else if (arg == "--allow-hash-bang") options.allowHashBang = true
+  else if (arg == "--silent") silent = true
+  else if (arg == "--compact") compact = true
+  else if (arg == "--help") help(0)
+  else if (arg == "--tokenize") tokenize = true
+  else if (arg == "--module") options.sourceType = 'module'
+  else help(1)
+}
+
+function run(code) {
+  let result
+  if (!tokenize) {
+    try { result = acorn.parse(code, options) }
+    catch(e) { console.error(e.message); process.exit(1) }
+  } else {
+    result = []
+    let tokenizer = acorn.tokenizer(code, options), token
+    while (true) {
+      try { token = tokenizer.getToken() }
+      catch(e) { console.error(e.message); process.exit(1) }
+      result.push(token)
+      if (token.type == acorn.tokTypes.eof) break
+    }
+  }
+  if (!silent) console.log(JSON.stringify(result, null, compact ? null : 2))
+}
+
+if (forceFile || infile && infile != "-") {
+  run(readFile(infile, "utf8"))
+} else {
+  let code = ""
+  process.stdin.resume()
+  process.stdin.on("data", chunk => code += chunk)
+  process.stdin.on("end", () => run(code))
+}

+// Acorn is a tiny, fast JavaScript parser written in JavaScript.
+//
+// Acorn was written by Marijn Haverbeke, Ingvar Stepanyan, and
+// various contributors and released under an MIT license.
+//
+// Git repositories for Acorn are available at
+//
+//     http://marijnhaverbeke.nl/git/acorn
+//     https://github.com/ternjs/acorn.git
+//
+// Please use the [github bug tracker][ghbt] to report issues.
+//
+// [ghbt]: https://github.com/ternjs/acorn/issues
+//
+// This file defines the main parser interface. The library also comes
+// with a [error-tolerant parser][dammit] and an
+// [abstract syntax tree walker][walk], defined in other files.
+//
+// [dammit]: acorn_loose.js
+// [walk]: util/walk.js
+
+import {Parser} from "./state"
+import "./parseutil"
+import "./statement"
+import "./lval"
+import "./expression"
+import "./location"
+
+export {Parser, plugins} from "./state"
+export {defaultOptions} from "./options"
+export {Position, SourceLocation, getLineInfo} from "./locutil"
+export {Node} from "./node"
+export {TokenType, types as tokTypes} from "./tokentype"
+export {TokContext, types as tokContexts} from "./tokencontext"
+export {isIdentifierChar, isIdentifierStart} from "./identifier"
+export {Token} from "./tokenize"
+export {isNewLine, lineBreak, lineBreakG} from "./whitespace"
+
+export const version = "3.3.0"
+
+// The main exported interface (under `self.acorn` when in the
+// browser) is a `parse` function that takes a code string and
+// returns an abstract syntax tree as specified by [Mozilla parser
+// API][api].
+//
+// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
+
+export function parse(input, options) {
+  return new Parser(options, input).parse()
+}
+
+// This function tries to parse a single expression at a given
+// offset in a string. Useful for parsing mixed-language formats
+// that embed JavaScript expressions.
+
+export function parseExpressionAt(input, pos, options) {
+  let p = new Parser(options, input, pos)
+  p.nextToken()
+  return p.parseExpression()
+}
+
+// Acorn is organized as a tokenizer and a recursive-descent parser.
+// The `tokenizer` export provides an interface to the tokenizer.
+
+export function tokenizer(input, options) {
+  return new Parser(options, input)
+}

+import {Parser} from "./state"
+import {Position, getLineInfo} from "./locutil"
+
+const pp = Parser.prototype
+
+// This function is used to raise exceptions on parse errors. It
+// takes an offset integer (into the current `input`) to indicate
+// the location of the error, attaches the position to the end
+// of the error message, and then raises a `SyntaxError` with that
+// message.
+
+pp.raise = function(pos, message) {
+  let loc = getLineInfo(this.input, pos)
+  message += " (" + loc.line + ":" + loc.column + ")"
+  let err = new SyntaxError(message)
+  err.pos = pos; err.loc = loc; err.raisedAt = this.pos
+  throw err
+}
+
+pp.raiseRecoverable = pp.raise
+
+pp.curPosition = function() {
+  if (this.options.locations) {
+    return new Position(this.curLine, this.pos - this.lineStart)
+  }
+}

+import {lineBreakG} from "./whitespace"
+
+// These are used when `options.locations` is on, for the
+// `startLoc` and `endLoc` properties.
+
+export class Position {
+  constructor(line, col) {
+    this.line = line
+    this.column = col
+  }
+
+  offset(n) {
+    return new Position(this.line, this.column + n)
+  }
+}
+
+export class SourceLocation {
+  constructor(p, start, end) {
+    this.start = start
+    this.end = end
+    if (p.sourceFile !== null) this.source = p.sourceFile
+  }
+}
+
+// The `getLineInfo` function is mostly useful when the
+// `locations` option is off (for performance reasons) and you
+// want to find the line/column position for a given character
+// offset. `input` should be the code string that the offset refers
+// into.
+
+export function getLineInfo(input, offset) {
+  for (let line = 1, cur = 0;;) {
+    lineBreakG.lastIndex = cur
+    let match = lineBreakG.exec(input)
+    if (match && match.index < offset) {
+      ++line
+      cur = match.index + match[0].length
+    } else {
+      return new Position(line, offset - cur)
+    }
+  }
+}

+// Acorn: Loose parser
+//
+// This module provides an alternative parser (`parse_dammit`) that
+// exposes that same interface as `parse`, but will try to parse
+// anything as JavaScript, repairing syntax error the best it can.
+// There are circumstances in which it will raise an error and give
+// up, but they are very rare. The resulting AST will be a mostly
+// valid JavaScript AST (as per the [Mozilla parser API][api], except
+// that:
+//
+// - Return outside functions is allowed
+//
+// - Label consistency (no conflicts, break only to existing labels)
+//   is not enforced.
+//
+// - Bogus Identifier nodes with a name of `"✖"` are inserted whenever
+//   the parser got too confused to return anything meaningful.
+//
+// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
+//
+// The expected use for this is to *first* try `acorn.parse`, and only
+// if that fails switch to `parse_dammit`. The loose parser might
+// parse badly indented code incorrectly, so **don't** use it as
+// your default parser.
+//
+// Quite a lot of acorn.js is duplicated here. The alternative was to
+// add a *lot* of extra cruft to that file, making it less readable
+// and slower. Copying and editing the code allowed me to make
+// invasive changes and simplifications without creating a complicated
+// tangle.
+
+import acorn from "acorn"
+import {LooseParser, pluginsLoose} from "./state"
+import "./tokenize"
+import "./statement"
+import "./expression"
+
+export {LooseParser, pluginsLoose} from "./state"
+
+acorn.defaultOptions.tabSize = 4
+
+export function parse_dammit(input, options) {
+  let p = new LooseParser(input, options)
+  p.next()
+  return p.parseTopLevel()
+}
+
+acorn.parse_dammit = parse_dammit
+acorn.LooseParser = LooseParser
+acorn.pluginsLoose = pluginsLoose

+export function isDummy(node) { return node.name == "✖" }
\ No newline at end of file

+import {tokenizer, SourceLocation, tokTypes as tt, Node, lineBreak, isNewLine} from "acorn"
+
+// Registered plugins
+export const pluginsLoose = {}
+
+export class LooseParser {
+  constructor(input, options = {}) {
+    this.toks = tokenizer(input, options)
+    this.options = this.toks.options
+    this.input = this.toks.input
+    this.tok = this.last = {type: tt.eof, start: 0, end: 0}
+    if (this.options.locations) {
+      let here = this.toks.curPosition()
+      this.tok.loc = new SourceLocation(this.toks, here, here)
+    }
+    this.ahead = [] // Tokens ahead
+    this.context = [] // Indentation contexted
+    this.curIndent = 0
+    this.curLineStart = 0
+    this.nextLineStart = this.lineEnd(this.curLineStart) + 1
+    // Load plugins
+    this.options.pluginsLoose = options.pluginsLoose || {}
+    this.loadPlugins(this.options.pluginsLoose)
+  }
+
+  startNode() {
+    return new Node(this.toks, this.tok.start, this.options.locations ? this.tok.loc.start : null)
+  }
+
+  storeCurrentPos() {
+    return this.options.locations ? [this.tok.start, this.tok.loc.start] : this.tok.start
+  }
+
+  startNodeAt(pos) {
+    if (this.options.locations) {
+      return new Node(this.toks, pos[0], pos[1])
+    } else {
+      return new Node(this.toks, pos)
+    }
+  }
+
+  finishNode(node, type) {
+    node.type = type
+    node.end = this.last.end
+    if (this.options.locations)
+      node.loc.end = this.last.loc.end
+    if (this.options.ranges)
+      node.range[1] = this.last.end
+    return node
+  }
+
+  dummyNode(type) {
+    let dummy = this.startNode()
+    dummy.type = type
+    dummy.end = dummy.start
+    if (this.options.locations)
+      dummy.loc.end = dummy.loc.start
+    if (this.options.ranges)
+      dummy.range[1] = dummy.start
+    this.last = {type: tt.name, start: dummy.start, end: dummy.start, loc: dummy.loc}
+    return dummy
+  }
+
+  dummyIdent() {
+    let dummy = this.dummyNode("Identifier")
+    dummy.name = "✖"
+    return dummy
+  }
+
+  dummyString() {
+    let dummy = this.dummyNode("Literal")
+    dummy.value = dummy.raw = "✖"
+    return dummy
+  }
+
+  eat(type) {
+    if (this.tok.type === type) {
+      this.next()
+      return true
+    } else {
+      return false
+    }
+  }
+
+  isContextual(name) {
+    return this.tok.type === tt.name && this.tok.value === name
+  }
+
+  eatContextual(name) {
+    return this.tok.value === name && this.eat(tt.name)
+  }
+
+  canInsertSemicolon() {
+    return this.tok.type === tt.eof || this.tok.type === tt.braceR ||
+      lineBreak.test(this.input.slice(this.last.end, this.tok.start))
+  }
+
+  semicolon() {
+    return this.eat(tt.semi)
+  }
+
+  expect(type) {
+    if (this.eat(type)) return true
+    for (let i = 1; i <= 2; i++) {
+      if (this.lookAhead(i).type == type) {
+        for (let j = 0; j < i; j++) this.next()
+        return true
+      }
+    }
+  }
+
+  pushCx() {
+    this.context.push(this.curIndent)
+  }
+
+  popCx() {
+    this.curIndent = this.context.pop()
+  }
+
+  lineEnd(pos) {
+    while (pos < this.input.length && !isNewLine(this.input.charCodeAt(pos))) ++pos
+    return pos
+  }
+
+  indentationAfter(pos) {
+    for (let count = 0;; ++pos) {
+      let ch = this.input.charCodeAt(pos)
+      if (ch === 32) ++count
+      else if (ch === 9) count += this.options.tabSize
+      else return count
+    }
+  }
+
+  closes(closeTok, indent, line, blockHeuristic) {
+    if (this.tok.type === closeTok || this.tok.type === tt.eof) return true
+    return line != this.curLineStart && this.curIndent < indent && this.tokenStartsLine() &&
+      (!blockHeuristic || this.nextLineStart >= this.input.length ||
+       this.indentationAfter(this.nextLineStart) < indent)
+  }
+
+  tokenStartsLine() {
+    for (let p = this.tok.start - 1; p >= this.curLineStart; --p) {
+      let ch = this.input.charCodeAt(p)
+      if (ch !== 9 && ch !== 32) return false
+    }
+    return true
+  }
+
+  extend(name, f) {
+    this[name] = f(this[name])
+  }
+
+  loadPlugins(pluginConfigs) {
+    for (let name in pluginConfigs) {
+      let plugin = pluginsLoose[name]
+      if (!plugin) throw new Error("Plugin '" + name + "' not found")
+      plugin(this, pluginConfigs[name])
+    }
+  }
+}

+import {tokTypes as tt, Token, isNewLine, SourceLocation, getLineInfo, lineBreakG} from "acorn"
+import {LooseParser} from "./state"
+
+const lp = LooseParser.prototype
+
+function isSpace(ch) {
+  return (ch < 14 && ch > 8) || ch === 32 || ch === 160 || isNewLine(ch)
+}
+
+lp.next = function() {
+  this.last = this.tok
+  if (this.ahead.length)
+    this.tok = this.ahead.shift()
+  else
+    this.tok = this.readToken()
+
+  if (this.tok.start >= this.nextLineStart) {
+    while (this.tok.start >= this.nextLineStart) {
+      this.curLineStart = this.nextLineStart
+      this.nextLineStart = this.lineEnd(this.curLineStart) + 1
+    }
+    this.curIndent = this.indentationAfter(this.curLineStart)
+  }
+}
+
+lp.readToken = function() {
+  for (;;) {
+    try {
+      this.toks.next()
+      if (this.toks.type === tt.dot &&
+          this.input.substr(this.toks.end, 1) === "." &&
+          this.options.ecmaVersion >= 6) {
+        this.toks.end++
+        this.toks.type = tt.ellipsis
+      }
+      return new Token(this.toks)
+    } catch(e) {
+      if (!(e instanceof SyntaxError)) throw e
+
+      // Try to skip some text, based on the error message, and then continue
+      let msg = e.message, pos = e.raisedAt, replace = true
+      if (/unterminated/i.test(msg)) {
+        pos = this.lineEnd(e.pos + 1)
+        if (/string/.test(msg)) {
+          replace = {start: e.pos, end: pos, type: tt.string, value: this.input.slice(e.pos + 1, pos)}
+        } else if (/regular expr/i.test(msg)) {
+          let re = this.input.slice(e.pos, pos)
+          try { re = new RegExp(re) } catch(e) {}
+          replace = {start: e.pos, end: pos, type: tt.regexp, value: re}
+        } else if (/template/.test(msg)) {
+          replace = {start: e.pos, end: pos,
+                     type: tt.template,
+                     value: this.input.slice(e.pos, pos)}
+        } else {
+          replace = false
+        }
+      } else if (/invalid (unicode|regexp|number)|expecting unicode|octal literal|is reserved|directly after number|expected number in radix/i.test(msg)) {
+        while (pos < this.input.length && !isSpace(this.input.charCodeAt(pos))) ++pos
+      } else if (/character escape|expected hexadecimal/i.test(msg)) {
+        while (pos < this.input.length) {
+          let ch = this.input.charCodeAt(pos++)
+          if (ch === 34 || ch === 39 || isNewLine(ch)) break
+        }
+      } else if (/unexpected character/i.test(msg)) {
+        pos++
+        replace = false
+      } else if (/regular expression/i.test(msg)) {
+        replace = true
+      } else {
+        throw e
+      }
+      this.resetTo(pos)
+      if (replace === true) replace = {start: pos, end: pos, type: tt.name, value: "✖"}
+      if (replace) {
+        if (this.options.locations)
+          replace.loc = new SourceLocation(
+            this.toks,
+            getLineInfo(this.input, replace.start),
+            getLineInfo(this.input, replace.end))
+        return replace
+      }
+    }
+  }
+}
+
+lp.resetTo = function(pos) {
+  this.toks.pos = pos
+  let ch = this.input.charAt(pos - 1)
+  this.toks.exprAllowed = !ch || /[\[\{\(,;:?\/*=+\-~!|&%^<>]/.test(ch) ||
+    /[enwfd]/.test(ch) &&
+    /\b(keywords|case|else|return|throw|new|in|(instance|type)of|delete|void)$/.test(this.input.slice(pos - 10, pos))
+
+  if (this.options.locations) {
+    this.toks.curLine = 1
+    this.toks.lineStart = lineBreakG.lastIndex = 0
+    let match
+    while ((match = lineBreakG.exec(this.input)) && match.index < pos) {
+      ++this.toks.curLine
+      this.toks.lineStart = match.index + match[0].length
+    }
+  }
+}
+
+lp.lookAhead = function(n) {
+  while (n > this.ahead.length)
+    this.ahead.push(this.readToken())
+  return this.ahead[n - 1]
+}

+import {types as tt} from "./tokentype"
+import {Parser} from "./state"
+import {has} from "./util"
+
+const pp = Parser.prototype
+
+// Convert existing expression atom to assignable pattern
+// if possible.
+
+pp.toAssignable = function(node, isBinding) {
+  if (this.options.ecmaVersion >= 6 && node) {
+    switch (node.type) {
+    case "Identifier":
+    case "ObjectPattern":
+    case "ArrayPattern":
+      break
+
+    case "ObjectExpression":
+      node.type = "ObjectPattern"
+      for (let i = 0; i < node.properties.length; i++) {
+        let prop = node.properties[i]
+        if (prop.kind !== "init") this.raise(prop.key.start, "Object pattern can't contain getter or setter")
+        this.toAssignable(prop.value, isBinding)
+      }
+      break
+
+    case "ArrayExpression":
+      node.type = "ArrayPattern"
+      this.toAssignableList(node.elements, isBinding)
+      break
+
+    case "AssignmentExpression":
+      if (node.operator === "=") {
+        node.type = "AssignmentPattern"
+        delete node.operator
+        // falls through to AssignmentPattern
+      } else {
+        this.raise(node.left.end, "Only '=' operator can be used for specifying default value.")
+        break
+      }
+
+    case "AssignmentPattern":
+      if (node.right.type === "YieldExpression")
+        this.raise(node.right.start, "Yield expression cannot be a default value")
+      break
+
+    case "ParenthesizedExpression":
+      node.expression = this.toAssignable(node.expression, isBinding)
+      break
+
+    case "MemberExpression":
+      if (!isBinding) break
+
+    default:
+      this.raise(node.start, "Assigning to rvalue")
+    }
+  }
+  return node
+}
+
+// Convert list of expression atoms to binding list.
+
+pp.toAssignableList = function(exprList, isBinding) {
+  let end = exprList.length
+  if (end) {
+    let last = exprList[end - 1]
+    if (last && last.type == "RestElement") {
+      --end
+    } else if (last && last.type == "SpreadElement") {
+      last.type = "RestElement"
+      let arg = last.argument
+      this.toAssignable(arg, isBinding)
+      if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern")
+        this.unexpected(arg.start)
+      --end
+    }
+
+    if (isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier")
+      this.unexpected(last.argument.start)
+  }
+  for (let i = 0; i < end; i++) {
+    let elt = exprList[i]
+    if (elt) this.toAssignable(elt, isBinding)
+  }
+  return exprList
+}
+
+// Parses spread element.
+
+pp.parseSpread = function(refDestructuringErrors) {
+  let node = this.startNode()
+  this.next()
+  node.argument = this.parseMaybeAssign(false, refDestructuringErrors)
+  return this.finishNode(node, "SpreadElement")
+}
+
+pp.parseRest = function(allowNonIdent) {
+  let node = this.startNode()
+  this.next()
+
+  // RestElement inside of a function parameter must be an identifier
+  if (allowNonIdent) node.argument = this.type === tt.name ? this.parseIdent() : this.unexpected()
+  else node.argument = this.type === tt.name || this.type === tt.bracketL ? this.parseBindingAtom() : this.unexpected()
+
+  return this.finishNode(node, "RestElement")
+}
+
+// Parses lvalue (assignable) atom.
+
+pp.parseBindingAtom = function() {
+  if (this.options.ecmaVersion < 6) return this.parseIdent()
+  switch (this.type) {
+  case tt.name:
+    return this.parseIdent()
+
+  case tt.bracketL:
+    let node = this.startNode()
+    this.next()
+    node.elements = this.parseBindingList(tt.bracketR, true, true)
+    return this.finishNode(node, "ArrayPattern")
+
+  case tt.braceL:
+    return this.parseObj(true)
+
+  default:
+    this.unexpected()
+  }
+}
+
+pp.parseBindingList = function(close, allowEmpty, allowTrailingComma, allowNonIdent) {
+  let elts = [], first = true
+  while (!this.eat(close)) {
+    if (first) first = false
+    else this.expect(tt.comma)
+    if (allowEmpty && this.type === tt.comma) {
+      elts.push(null)
+    } else if (allowTrailingComma && this.afterTrailingComma(close)) {
+      break
+    } else if (this.type === tt.ellipsis) {
+      let rest = this.parseRest(allowNonIdent)
+      this.parseBindingListItem(rest)
+      elts.push(rest)
+      if (this.type === tt.comma) this.raise(this.start, "Comma is not permitted after the rest element")
+      this.expect(close)
+      break
+    } else {
+      let elem = this.parseMaybeDefault(this.start, this.startLoc)
+      this.parseBindingListItem(elem)
+      elts.push(elem)
+    }
+  }
+  return elts
+}
+
+pp.parseBindingListItem = function(param) {
+  return param
+}
+
+// Parses assignment pattern around given atom if possible.
+
+pp.parseMaybeDefault = function(startPos, startLoc, left) {
+  left = left || this.parseBindingAtom()
+  if (this.options.ecmaVersion < 6 || !this.eat(tt.eq)) return left
+  let node = this.startNodeAt(startPos, startLoc)
+  node.left = left
+  node.right = this.parseMaybeAssign()
+  return this.finishNode(node, "AssignmentPattern")
+}
+
+// Verify that a node is an lval — something that can be assigned
+// to.
+
+pp.checkLVal = function(expr, isBinding, checkClashes) {
+  switch (expr.type) {
+  case "Identifier":
+    if (this.strict && this.reservedWordsStrictBind.test(expr.name))
+      this.raiseRecoverable(expr.start, (isBinding ? "Binding " : "Assigning to ") + expr.name + " in strict mode")
+    if (checkClashes) {
+      if (has(checkClashes, expr.name))
+        this.raiseRecoverable(expr.start, "Argument name clash")
+      checkClashes[expr.name] = true
+    }
+    break
+
+  case "MemberExpression":
+    if (isBinding) this.raiseRecoverable(expr.start, (isBinding ? "Binding" : "Assigning to") + " member expression")
+    break
+
+  case "ObjectPattern":
+    for (let i = 0; i < expr.properties.length; i++)
+      this.checkLVal(expr.properties[i].value, isBinding, checkClashes)
+    break
+
+  case "ArrayPattern":
+    for (let i = 0; i < expr.elements.length; i++) {
+      let elem = expr.elements[i]
+      if (elem) this.checkLVal(elem, isBinding, checkClashes)
+    }
+    break
+
+  case "AssignmentPattern":
+    this.checkLVal(expr.left, isBinding, checkClashes)
+    break
+
+  case "RestElement":
+    this.checkLVal(expr.argument, isBinding, checkClashes)
+    break
+
+  case "ParenthesizedExpression":
+    this.checkLVal(expr.expression, isBinding, checkClashes)
+    break
+
+  default:
+    this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " rvalue")
+  }
+}

+import {Parser} from "./state"
+import {SourceLocation} from "./locutil"
+
+export class Node {
+  constructor(parser, pos, loc) {
+    this.type = ""
+    this.start = pos
+    this.end = 0
+    if (parser.options.locations)
+      this.loc = new SourceLocation(parser, loc)
+    if (parser.options.directSourceFile)
+      this.sourceFile = parser.options.directSourceFile
+    if (parser.options.ranges)
+      this.range = [pos, 0]
+  }
+}
+
+// Start an AST node, attaching a start offset.
+
+const pp = Parser.prototype
+
+pp.startNode = function() {
+  return new Node(this, this.start, this.startLoc)
+}
+
+pp.startNodeAt = function(pos, loc) {
+  return new Node(this, pos, loc)
+}
+
+// Finish an AST node, adding `type` and `end` properties.
+
+function finishNodeAt(node, type, pos, loc) {
+  node.type = type
+  node.end = pos
+  if (this.options.locations)
+    node.loc.end = loc
+  if (this.options.ranges)
+    node.range[1] = pos
+  return node
+}
+
+pp.finishNode = function(node, type) {
+  return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc)
+}
+
+// Finish node at given position
+
+pp.finishNodeAt = function(node, type, pos, loc) {
+  return finishNodeAt.call(this, node, type, pos, loc)
+}

+import {has, isArray} from "./util"
+import {SourceLocation} from "./locutil"
+
+// A second optional argument can be given to further configure
+// the parser process. These options are recognized:
+
+export const defaultOptions = {
+  // `ecmaVersion` indicates the ECMAScript version to parse. Must
+  // be either 3, or 5, or 6. This influences support for strict
+  // mode, the set of reserved words, support for getters and
+  // setters and other features. The default is 6.
+  ecmaVersion: 6,
+  // Source type ("script" or "module") for different semantics
+  sourceType: "script",
+  // `onInsertedSemicolon` can be a callback that will be called
+  // when a semicolon is automatically inserted. It will be passed
+  // th position of the comma as an offset, and if `locations` is
+  // enabled, it is given the location as a `{line, column}` object
+  // as second argument.
+  onInsertedSemicolon: null,
+  // `onTrailingComma` is similar to `onInsertedSemicolon`, but for
+  // trailing commas.
+  onTrailingComma: null,
+  // By default, reserved words are only enforced if ecmaVersion >= 5.
+  // Set `allowReserved` to a boolean value to explicitly turn this on
+  // an off. When this option has the value "never", reserved words
+  // and keywords can also not be used as property names.
+  allowReserved: null,
+  // When enabled, a return at the top level is not considered an
+  // error.
+  allowReturnOutsideFunction: false,
+  // When enabled, import/export statements are not constrained to
+  // appearing at the top of the program.
+  allowImportExportEverywhere: false,
+  // When enabled, hashbang directive in the beginning of file
+  // is allowed and treated as a line comment.
+  allowHashBang: false,
+  // When `locations` is on, `loc` properties holding objects with
+  // `start` and `end` properties in `{line, column}` form (with
+  // line being 1-based and column 0-based) will be attached to the
+  // nodes.
+  locations: false,
+  // A function can be passed as `onToken` option, which will
+  // cause Acorn to call that function with object in the same
+  // format as tokens returned from `tokenizer().getToken()`. Note
+  // that you are not allowed to call the parser from the
+  // callback—that will corrupt its internal state.
+  onToken: null,
+  // A function can be passed as `onComment` option, which will
+  // cause Acorn to call that function with `(block, text, start,
+  // end)` parameters whenever a comment is skipped. `block` is a
+  // boolean indicating whether this is a block (`/* */`) comment,
+  // `text` is the content of the comment, and `start` and `end` are
+  // character offsets that denote the start and end of the comment.
+  // When the `locations` option is on, two more parameters are
+  // passed, the full `{line, column}` locations of the start and
+  // end of the comments. Note that you are not allowed to call the
+  // parser from the callback—that will corrupt its internal state.
+  onComment: null,
+  // Nodes have their start and end characters offsets recorded in
+  // `start` and `end` properties (directly on the node, rather than
+  // the `loc` object, which holds line/column data. To also add a
+  // [semi-standardized][range] `range` property holding a `[start,
+  // end]` array with the same numbers, set the `ranges` option to
+  // `true`.
+  //
+  // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
+  ranges: false,
+  // It is possible to parse multiple files into a single AST by
+  // passing the tree produced by parsing the first file as
+  // `program` option in subsequent parses. This will add the
+  // toplevel forms of the parsed file to the `Program` (top) node
+  // of an existing parse tree.
+  program: null,
+  // When `locations` is on, you can pass this to record the source
+  // file in every node's `loc` object.
+  sourceFile: null,
+  // This value, if given, is stored in every node, whether
+  // `locations` is on or off.
+  directSourceFile: null,
+  // When enabled, parenthesized expressions are represented by
+  // (non-standard) ParenthesizedExpression nodes
+  preserveParens: false,
+  plugins: {}
+}
+
+// Interpret and default an options object
+
+export function getOptions(opts) {
+  let options = {}
+  for (let opt in defaultOptions)
+    options[opt] = opts && has(opts, opt) ? opts[opt] : defaultOptions[opt]
+  if (options.allowReserved == null)
+    options.allowReserved = options.ecmaVersion < 5
+
+  if (isArray(options.onToken)) {
+    let tokens = options.onToken
+    options.onToken = (token) => tokens.push(token)
+  }
+  if (isArray(options.onComment))
+    options.onComment = pushComment(options, options.onComment)
+
+  return options
+}
+
+function pushComment(options, array) {
+  return function (block, text, start, end, startLoc, endLoc) {
+    let comment = {
+      type: block ? 'Block' : 'Line',
+      value: text,
+      start: start,
+      end: end
+    }
+    if (options.locations)
+      comment.loc = new SourceLocation(this, startLoc, endLoc)
+    if (options.ranges)
+      comment.range = [start, end]
+    array.push(comment)
+  }
+}
+

+import {types as tt} from "./tokentype"
+import {Parser} from "./state"
+import {lineBreak} from "./whitespace"
+
+const pp = Parser.prototype
+
+// ## Parser utilities
+
+// Test whether a statement node is the string literal `"use strict"`.
+
+pp.isUseStrict = function(stmt) {
+  return this.options.ecmaVersion >= 5 && stmt.type === "ExpressionStatement" &&
+    stmt.expression.type === "Literal" &&
+    stmt.expression.raw.slice(1, -1) === "use strict"
+}
+
+// Predicate that tests whether the next token is of the given
+// type, and if yes, consumes it as a side effect.
+
+pp.eat = function(type) {
+  if (this.type === type) {
+    this.next()
+    return true
+  } else {
+    return false
+  }
+}
+
+// Tests whether parsed token is a contextual keyword.
+
+pp.isContextual = function(name) {
+  return this.type === tt.name && this.value === name
+}
+
+// Consumes contextual keyword if possible.
+
+pp.eatContextual = function(name) {
+  return this.value === name && this.eat(tt.name)
+}
+
+// Asserts that following token is given contextual keyword.
+
+pp.expectContextual = function(name) {
+  if (!this.eatContextual(name)) this.unexpected()
+}
+
+// Test whether a semicolon can be inserted at the current position.
+
+pp.canInsertSemicolon = function() {
+  return this.type === tt.eof ||
+    this.type === tt.braceR ||
+    lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
+}
+
+pp.insertSemicolon = function() {
+  if (this.canInsertSemicolon()) {
+    if (this.options.onInsertedSemicolon)
+      this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc)
+    return true
+  }
+}
+
+// Consume a semicolon, or, failing that, see if we are allowed to
+// pretend that there is a semicolon at this position.
+
+pp.semicolon = function() {
+  if (!this.eat(tt.semi) && !this.insertSemicolon()) this.unexpected()
+}
+
+pp.afterTrailingComma = function(tokType) {
+  if (this.type == tokType) {
+    if (this.options.onTrailingComma)
+      this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc)
+    this.next()
+    return true
+  }
+}
+
+// Expect a token of a given type. If found, consume it, otherwise,
+// raise an unexpected token error.
+
+pp.expect = function(type) {
+  this.eat(type) || this.unexpected()
+}
+
+// Raise an unexpected token error.
+
+pp.unexpected = function(pos) {
+  this.raise(pos != null ? pos : this.start, "Unexpected token")
+}
+
+export class DestructuringErrors {
+  constructor() {
+    this.shorthandAssign = 0
+    this.trailingComma = 0
+  }
+}
+
+pp.checkPatternErrors = function(refDestructuringErrors, andThrow) {
+  let trailing = refDestructuringErrors && refDestructuringErrors.trailingComma
+  if (!andThrow) return !!trailing
+  if (trailing) this.raise(trailing, "Comma is not permitted after the rest element")
+}
+
+pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
+  let pos = refDestructuringErrors && refDestructuringErrors.shorthandAssign
+  if (!andThrow) return !!pos
+  if (pos) this.raise(pos, "Shorthand property assignments are valid only in destructuring patterns")
+}

+import {reservedWords, keywords} from "./identifier"
+import {types as tt} from "./tokentype"
+import {lineBreak} from "./whitespace"
+import {getOptions} from "./options"
+
+// Registered plugins
+export const plugins = {}
+
+function keywordRegexp(words) {
+  return new RegExp("^(" + words.replace(/ /g, "|") + ")$")
+}
+
+export class Parser {
+  constructor(options, input, startPos) {
+    this.options = options = getOptions(options)
+    this.sourceFile = options.sourceFile
+    this.keywords = keywordRegexp(keywords[options.ecmaVersion >= 6 ? 6 : 5])
+    let reserved = options.allowReserved ? "" :
+        reservedWords[options.ecmaVersion] + (options.sourceType == "module" ? " await" : "")
+    this.reservedWords = keywordRegexp(reserved)
+    let reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict
+    this.reservedWordsStrict = keywordRegexp(reservedStrict)
+    this.reservedWordsStrictBind = keywordRegexp(reservedStrict + " " + reservedWords.strictBind)
+    this.input = String(input)
+
+    // Used to signal to callers of `readWord1` whether the word
+    // contained any escape sequences. This is needed because words with
+    // escape sequences must not be interpreted as keywords.
+    this.containsEsc = false
+
+    // Load plugins
+    this.loadPlugins(options.plugins)
+
+    // Set up token state
+
+    // The current position of the tokenizer in the input.
+    if (startPos) {
+      this.pos = startPos
+      this.lineStart = Math.max(0, this.input.lastIndexOf("\n", startPos))
+      this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length
+    } else {
+      this.pos = this.lineStart = 0
+      this.curLine = 1
+    }
+
+    // Properties of the current token:
+    // Its type
+    this.type = tt.eof
+    // For tokens that include more information than their type, the value
+    this.value = null
+    // Its start and end offset
+    this.start = this.end = this.pos
+    // And, if locations are used, the {line, column} object
+    // corresponding to those offsets
+    this.startLoc = this.endLoc = this.curPosition()
+
+    // Position information for the previous token
+    this.lastTokEndLoc = this.lastTokStartLoc = null
+    this.lastTokStart = this.lastTokEnd = this.pos
+
+    // The context stack is used to superficially track syntactic
+    // context to predict whether a regular expression is allowed in a
+    // given position.
+    this.context = this.initialContext()
+    this.exprAllowed = true
+
+    // Figure out if it's a module code.
+    this.strict = this.inModule = options.sourceType === "module"
+
+    // Used to signify the start of a potential arrow function
+    this.potentialArrowAt = -1
+
+    // Flags to track whether we are in a function, a generator.
+    this.inFunction = this.inGenerator = false
+    // Labels in scope.
+    this.labels = []
+
+    // If enabled, skip leading hashbang line.
+    if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === '#!')
+      this.skipLineComment(2)
+  }
+
+  // DEPRECATED Kept for backwards compatibility until 3.0 in case a plugin uses them
+  isKeyword(word) { return this.keywords.test(word) }
+  isReservedWord(word) { return this.reservedWords.test(word) }
+
+  extend(name, f) {
+    this[name] = f(this[name])
+  }
+
+  loadPlugins(pluginConfigs) {
+    for (let name in pluginConfigs) {
+      let plugin = plugins[name]
+      if (!plugin) throw new Error("Plugin '" + name + "' not found")
+      plugin(this, pluginConfigs[name])
+    }
+  }
+
+  parse() {
+    let node = this.options.program || this.startNode()
+    this.nextToken()
+    return this.parseTopLevel(node)
+  }
+}

+// The algorithm used to determine whether a regexp can appear at a
+// given point in the program is loosely based on sweet.js' approach.
+// See https://github.com/mozilla/sweet.js/wiki/design
+
+import {Parser} from "./state"
+import {types as tt} from "./tokentype"
+import {lineBreak} from "./whitespace"
+
+export class TokContext {
+  constructor(token, isExpr, preserveSpace, override) {
+    this.token = token
+    this.isExpr = !!isExpr
+    this.preserveSpace = !!preserveSpace
+    this.override = override
+  }
+}
+
+export const types = {
+  b_stat: new TokContext("{", false),
+  b_expr: new TokContext("{", true),
+  b_tmpl: new TokContext("${", true),
+  p_stat: new TokContext("(", false),
+  p_expr: new TokContext("(", true),
+  q_tmpl: new TokContext("`", true, true, p => p.readTmplToken()),
+  f_expr: new TokContext("function", true)
+}
+
+const pp = Parser.prototype
+
+pp.initialContext = function() {
+  return [types.b_stat]
+}
+
+pp.braceIsBlock = function(prevType) {
+  if (prevType === tt.colon) {
+    let parent = this.curContext()
+    if (parent === types.b_stat || parent === types.b_expr)
+      return !parent.isExpr
+  }
+  if (prevType === tt._return)
+    return lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
+  if (prevType === tt._else || prevType === tt.semi || prevType === tt.eof || prevType === tt.parenR)
+    return true
+  if (prevType == tt.braceL)
+    return this.curContext() === types.b_stat
+  return !this.exprAllowed
+}
+
+pp.updateContext = function(prevType) {
+  let update, type = this.type
+  if (type.keyword && prevType == tt.dot)
+    this.exprAllowed = false
+  else if (update = type.updateContext)
+    update.call(this, prevType)
+  else
+    this.exprAllowed = type.beforeExpr
+}
+
+// Token-specific context update code
+
+tt.parenR.updateContext = tt.braceR.updateContext = function() {
+  if (this.context.length == 1) {
+    this.exprAllowed = true
+    return
+  }
+  let out = this.context.pop()
+  if (out === types.b_stat && this.curContext() === types.f_expr) {
+    this.context.pop()
+    this.exprAllowed = false
+  } else if (out === types.b_tmpl) {
+    this.exprAllowed = true
+  } else {
+    this.exprAllowed = !out.isExpr
+  }
+}
+
+tt.braceL.updateContext = function(prevType) {
+  this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr)
+  this.exprAllowed = true
+}
+
+tt.dollarBraceL.updateContext = function() {
+  this.context.push(types.b_tmpl)
+  this.exprAllowed = true
+}
+
+tt.parenL.updateContext = function(prevType) {
+  let statementParens = prevType === tt._if || prevType === tt._for || prevType === tt._with || prevType === tt._while
+  this.context.push(statementParens ? types.p_stat : types.p_expr)
+  this.exprAllowed = true
+}
+
+tt.incDec.updateContext = function() {
+  // tokExprAllowed stays unchanged
+}
+
+tt._function.updateContext = function(prevType) {
+  if (prevType.beforeExpr && prevType !== tt.semi && prevType !== tt._else &&
+      !((prevType === tt.colon || prevType === tt.braceL) && this.curContext() === types.b_stat))
+    this.context.push(types.f_expr)
+  this.exprAllowed = false
+}
+
+tt.backQuote.updateContext = function() {
+  if (this.curContext() === types.q_tmpl)
+    this.context.pop()
+  else
+    this.context.push(types.q_tmpl)
+  this.exprAllowed = false
+}

+// ## Token types
+
+// The assignment of fine-grained, information-carrying type objects
+// allows the tokenizer to store the information it has about a
+// token in a way that is very cheap for the parser to look up.
+
+// All token type variables start with an underscore, to make them
+// easy to recognize.
+
+// The `beforeExpr` property is used to disambiguate between regular
+// expressions and divisions. It is set on all token types that can
+// be followed by an expression (thus, a slash after them would be a
+// regular expression).
+//
+// The `startsExpr` property is used to check if the token ends a
+// `yield` expression. It is set on all token types that either can
+// directly start an expression (like a quotation mark) or can
+// continue an expression (like the body of a string).
+//
+// `isLoop` marks a keyword as starting a loop, which is important
+// to know when parsing a label, in order to allow or disallow
+// continue jumps to that label.
+
+export class TokenType {
+  constructor(label, conf = {}) {
+    this.label = label
+    this.keyword = conf.keyword
+    this.beforeExpr = !!conf.beforeExpr
+    this.startsExpr = !!conf.startsExpr
+    this.isLoop = !!conf.isLoop
+    this.isAssign = !!conf.isAssign
+    this.prefix = !!conf.prefix
+    this.postfix = !!conf.postfix
+    this.binop = conf.binop || null
+    this.updateContext = null
+  }
+}
+
+function binop(name, prec) {
+  return new TokenType(name, {beforeExpr: true, binop: prec})
+}
+const beforeExpr = {beforeExpr: true}, startsExpr = {startsExpr: true}
+
+// Map keyword names to token types.
+
+export const keywords = {}
+
+// Succinct definitions of keyword token types
+function kw(name, options = {}) {
+  options.keyword = name
+  return keywords[name] = new TokenType(name, options)
+}
+
+export const types = {
+  num: new TokenType("num", startsExpr),
+  regexp: new TokenType("regexp", startsExpr),
+  string: new TokenType("string", startsExpr),
+  name: new TokenType("name", startsExpr),
+  eof: new TokenType("eof"),
+
+  // Punctuation token types.
+  bracketL: new TokenType("[", {beforeExpr: true, startsExpr: true}),
+  bracketR: new TokenType("]"),
+  braceL: new TokenType("{", {beforeExpr: true, startsExpr: true}),
+  braceR: new TokenType("}"),
+  parenL: new TokenType("(", {beforeExpr: true, startsExpr: true}),
+  parenR: new TokenType(")"),
+  comma: new TokenType(",", beforeExpr),
+  semi: new TokenType(";", beforeExpr),
+  colon: new TokenType(":", beforeExpr),
+  dot: new TokenType("."),
+  question: new TokenType("?", beforeExpr),
+  arrow: new TokenType("=>", beforeExpr),
+  template: new TokenType("template"),
+  ellipsis: new TokenType("...", beforeExpr),
+  backQuote: new TokenType("`", startsExpr),
+  dollarBraceL: new TokenType("${", {beforeExpr: true, startsExpr: true}),
+
+  // Operators. These carry several kinds of properties to help the
+  // parser use them properly (the presence of these properties is
+  // what categorizes them as operators).
+  //
+  // `binop`, when present, specifies that this operator is a binary
+  // operator, and will refer to its precedence.
+  //
+  // `prefix` and `postfix` mark the operator as a prefix or postfix
+  // unary operator.
+  //
+  // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
+  // binary operators with a very low precedence, that should result
+  // in AssignmentExpression nodes.
+
+  eq: new TokenType("=", {beforeExpr: true, isAssign: true}),
+  assign: new TokenType("_=", {beforeExpr: true, isAssign: true}),
+  incDec: new TokenType("++/--", {prefix: true, postfix: true, startsExpr: true}),
+  prefix: new TokenType("prefix", {beforeExpr: true, prefix: true, startsExpr: true}),
+  logicalOR: binop("||", 1),
+  logicalAND: binop("&&", 2),
+  bitwiseOR: binop("|", 3),
+  bitwiseXOR: binop("^", 4),
+  bitwiseAND: binop("&", 5),
+  equality: binop("==/!=", 6),
+  relational: binop("</>", 7),
+  bitShift: binop("<</>>", 8),
+  plusMin: new TokenType("+/-", {beforeExpr: true, binop: 9, prefix: true, startsExpr: true}),
+  modulo: binop("%", 10),
+  star: binop("*", 10),
+  slash: binop("/", 10),
+  starstar: new TokenType("**", {beforeExpr: true}),
+
+  // Keyword token types.
+  _break: kw("break"),
+  _case: kw("case", beforeExpr),
+  _catch: kw("catch"),
+  _continue: kw("continue"),
+  _debugger: kw("debugger"),
+  _default: kw("default", beforeExpr),
+  _do: kw("do", {isLoop: true, beforeExpr: true}),
+  _else: kw("else", beforeExpr),
+  _finally: kw("finally"),
+  _for: kw("for", {isLoop: true}),
+  _function: kw("function", startsExpr),
+  _if: kw("if"),
+  _return: kw("return", beforeExpr),
+  _switch: kw("switch"),
+  _throw: kw("throw", beforeExpr),
+  _try: kw("try"),
+  _var: kw("var"),
+  _const: kw("const"),
+  _while: kw("while", {isLoop: true}),
+  _with: kw("with"),
+  _new: kw("new", {beforeExpr: true, startsExpr: true}),
+  _this: kw("this", startsExpr),
+  _super: kw("super", startsExpr),
+  _class: kw("class"),
+  _extends: kw("extends", beforeExpr),
+  _export: kw("export"),
+  _import: kw("import"),
+  _null: kw("null", startsExpr),
+  _true: kw("true", startsExpr),
+  _false: kw("false", startsExpr),
+  _in: kw("in", {beforeExpr: true, binop: 7}),
+  _instanceof: kw("instanceof", {beforeExpr: true, binop: 7}),
+  _typeof: kw("typeof", {beforeExpr: true, prefix: true, startsExpr: true}),
+  _void: kw("void", {beforeExpr: true, prefix: true, startsExpr: true}),
+  _delete: kw("delete", {beforeExpr: true, prefix: true, startsExpr: true})
+}

+export function isArray(obj) {
+  return Object.prototype.toString.call(obj) === "[object Array]"
+}
+
+// Checks if an object has a property.
+
+export function has(obj, propName) {
+  return Object.prototype.hasOwnProperty.call(obj, propName)
+}

+// Matches a whole line break (where CRLF is considered a single
+// line break). Used to count lines.
+
+export const lineBreak = /\r\n?|\n|\u2028|\u2029/
+export const lineBreakG = new RegExp(lineBreak.source, "g")
+
+export function isNewLine(code) {
+  return code === 10 || code === 13 || code === 0x2028 || code == 0x2029
+}
+
+export const nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/
+
+export const skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g

+{
+  "_args": [
+    [
+      {
+        "raw": "acorn-jsx@^3.0.0",
+        "scope": null,
+        "escapedName": "acorn-jsx",
+        "name": "acorn-jsx",
+        "rawSpec": "^3.0.0",
+        "spec": ">=3.0.0 <4.0.0",
+        "type": "range"
+      },
+      "/Users/kanghyeontae/IdeaProjects/YTMT/node_modules/espree"
+    ]
+  ],
+  "_from": "acorn-jsx@>=3.0.0 <4.0.0",
+  "_id": "acorn-jsx@3.0.1",
+  "_inCache": true,
+  "_location": "/acorn-jsx",
+  "_nodeVersion": "6.0.0",
+  "_npmOperationalInternal": {
+    "host": "packages-12-west.internal.npmjs.com",
+    "tmp": "tmp/acorn-jsx-3.0.1.tgz_1462206645285_0.17844340158626437"
+  },
+  "_npmUser": {
+    "name": "rreverser",
+    "email": "me@rreverser.com"
+  },
+  "_npmVersion": "3.8.6",
+  "_phantomChildren": {},
+  "_requested": {
+    "raw": "acorn-jsx@^3.0.0",
+    "scope": null,
+    "escapedName": "acorn-jsx",
+    "name": "acorn-jsx",
+    "rawSpec": "^3.0.0",
+    "spec": ">=3.0.0 <4.0.0",
+    "type": "range"
+  },
+  "_requiredBy": [
+    "/espree"
+  ],
+  "_resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz",
+  "_shasum": "afdf9488fb1ecefc8348f6fb22f464e32a58b36b",
+  "_shrinkwrap": null,
+  "_spec": "acorn-jsx@^3.0.0",
+  "_where": "/Users/kanghyeontae/IdeaProjects/YTMT/node_modules/espree",
+  "bugs": {
+    "url": "https://github.com/RReverser/acorn-jsx/issues"
+  },
+  "dependencies": {
+    "acorn": "^3.0.4"
+  },
+  "description": "Alternative, faster React.js JSX parser",
+  "devDependencies": {
+    "chai": "^3.0.0",
+    "mocha": "^2.2.5"
+  },
+  "directories": {},
+  "dist": {
+    "shasum": "afdf9488fb1ecefc8348f6fb22f464e32a58b36b",
+    "tarball": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz"
+  },
+  "gitHead": "05852d8ae9476b7f8a25e417665e2265528d5fb9",
+  "homepage": "https://github.com/RReverser/acorn-jsx",
+  "license": "MIT",
+  "maintainers": [
+    {
+      "name": "rreverser",
+      "email": "me@rreverser.com"
+    }
+  ],
+  "name": "acorn-jsx",
+  "optionalDependencies": {},
+  "readme": "ERROR: No README data found!",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/RReverser/acorn-jsx.git"
+  },
+  "scripts": {
+    "test": "node test/run.js"
+  },
+  "version": "3.0.1"
+}

+module.exports = {
+  quot: '\u0022',
+  amp: '&',
+  apos: '\u0027',
+  lt: '<',
+  gt: '>',
+  nbsp: '\u00A0',
+  iexcl: '\u00A1',
+  cent: '\u00A2',
+  pound: '\u00A3',
+  curren: '\u00A4',
+  yen: '\u00A5',
+  brvbar: '\u00A6',
+  sect: '\u00A7',
+  uml: '\u00A8',
+  copy: '\u00A9',
+  ordf: '\u00AA',
+  laquo: '\u00AB',
+  not: '\u00AC',
+  shy: '\u00AD',
+  reg: '\u00AE',
+  macr: '\u00AF',
+  deg: '\u00B0',
+  plusmn: '\u00B1',
+  sup2: '\u00B2',
+  sup3: '\u00B3',
+  acute: '\u00B4',
+  micro: '\u00B5',
+  para: '\u00B6',
+  middot: '\u00B7',
+  cedil: '\u00B8',
+  sup1: '\u00B9',
+  ordm: '\u00BA',
+  raquo: '\u00BB',
+  frac14: '\u00BC',
+  frac12: '\u00BD',
+  frac34: '\u00BE',
+  iquest: '\u00BF',
+  Agrave: '\u00C0',
+  Aacute: '\u00C1',
+  Acirc: '\u00C2',
+  Atilde: '\u00C3',
+  Auml: '\u00C4',
+  Aring: '\u00C5',
+  AElig: '\u00C6',
+  Ccedil: '\u00C7',
+  Egrave: '\u00C8',
+  Eacute: '\u00C9',
+  Ecirc: '\u00CA',
+  Euml: '\u00CB',
+  Igrave: '\u00CC',
+  Iacute: '\u00CD',
+  Icirc: '\u00CE',
+  Iuml: '\u00CF',
+  ETH: '\u00D0',
+  Ntilde: '\u00D1',
+  Ograve: '\u00D2',
+  Oacute: '\u00D3',
+  Ocirc: '\u00D4',
+  Otilde: '\u00D5',
+  Ouml: '\u00D6',
+  times: '\u00D7',
+  Oslash: '\u00D8',
+  Ugrave: '\u00D9',
+  Uacute: '\u00DA',
+  Ucirc: '\u00DB',
+  Uuml: '\u00DC',
+  Yacute: '\u00DD',
+  THORN: '\u00DE',
+  szlig: '\u00DF',
+  agrave: '\u00E0',
+  aacute: '\u00E1',
+  acirc: '\u00E2',
+  atilde: '\u00E3',
+  auml: '\u00E4',
+  aring: '\u00E5',
+  aelig: '\u00E6',
+  ccedil: '\u00E7',
+  egrave: '\u00E8',
+  eacute: '\u00E9',
+  ecirc: '\u00EA',
+  euml: '\u00EB',
+  igrave: '\u00EC',
+  iacute: '\u00ED',
+  icirc: '\u00EE',
+  iuml: '\u00EF',
+  eth: '\u00F0',
+  ntilde: '\u00F1',
+  ograve: '\u00F2',
+  oacute: '\u00F3',
+  ocirc: '\u00F4',
+  otilde: '\u00F5',
+  ouml: '\u00F6',
+  divide: '\u00F7',
+  oslash: '\u00F8',
+  ugrave: '\u00F9',
+  uacute: '\u00FA',
+  ucirc: '\u00FB',
+  uuml: '\u00FC',
+  yacute: '\u00FD',
+  thorn: '\u00FE',
+  yuml: '\u00FF',
+  OElig: '\u0152',
+  oelig: '\u0153',
+  Scaron: '\u0160',
+  scaron: '\u0161',
+  Yuml: '\u0178',
+  fnof: '\u0192',
+  circ: '\u02C6',
+  tilde: '\u02DC',
+  Alpha: '\u0391',
+  Beta: '\u0392',
+  Gamma: '\u0393',
+  Delta: '\u0394',
+  Epsilon: '\u0395',
+  Zeta: '\u0396',
+  Eta: '\u0397',
+  Theta: '\u0398',
+  Iota: '\u0399',
+  Kappa: '\u039A',
+  Lambda: '\u039B',
+  Mu: '\u039C',
+  Nu: '\u039D',
+  Xi: '\u039E',
+  Omicron: '\u039F',
+  Pi: '\u03A0',
+  Rho: '\u03A1',
+  Sigma: '\u03A3',
+  Tau: '\u03A4',
+  Upsilon: '\u03A5',
+  Phi: '\u03A6',
+  Chi: '\u03A7',
+  Psi: '\u03A8',
+  Omega: '\u03A9',
+  alpha: '\u03B1',
+  beta: '\u03B2',
+  gamma: '\u03B3',
+  delta: '\u03B4',
+  epsilon: '\u03B5',
+  zeta: '\u03B6',
+  eta: '\u03B7',
+  theta: '\u03B8',
+  iota: '\u03B9',
+  kappa: '\u03BA',
+  lambda: '\u03BB',
+  mu: '\u03BC',
+  nu: '\u03BD',
+  xi: '\u03BE',
+  omicron: '\u03BF',
+  pi: '\u03C0',
+  rho: '\u03C1',
+  sigmaf: '\u03C2',
+  sigma: '\u03C3',
+  tau: '\u03C4',
+  upsilon: '\u03C5',
+  phi: '\u03C6',
+  chi: '\u03C7',
+  psi: '\u03C8',
+  omega: '\u03C9',
+  thetasym: '\u03D1',
+  upsih: '\u03D2',
+  piv: '\u03D6',
+  ensp: '\u2002',
+  emsp: '\u2003',
+  thinsp: '\u2009',
+  zwnj: '\u200C',
+  zwj: '\u200D',
+  lrm: '\u200E',
+  rlm: '\u200F',
+  ndash: '\u2013',
+  mdash: '\u2014',
+  lsquo: '\u2018',
+  rsquo: '\u2019',
+  sbquo: '\u201A',
+  ldquo: '\u201C',
+  rdquo: '\u201D',
+  bdquo: '\u201E',
+  dagger: '\u2020',
+  Dagger: '\u2021',
+  bull: '\u2022',
+  hellip: '\u2026',
+  permil: '\u2030',
+  prime: '\u2032',
+  Prime: '\u2033',
+  lsaquo: '\u2039',
+  rsaquo: '\u203A',
+  oline: '\u203E',
+  frasl: '\u2044',
+  euro: '\u20AC',
+  image: '\u2111',
+  weierp: '\u2118',
+  real: '\u211C',
+  trade: '\u2122',
+  alefsym: '\u2135',
+  larr: '\u2190',
+  uarr: '\u2191',
+  rarr: '\u2192',
+  darr: '\u2193',
+  harr: '\u2194',
+  crarr: '\u21B5',
+  lArr: '\u21D0',
+  uArr: '\u21D1',
+  rArr: '\u21D2',
+  dArr: '\u21D3',
+  hArr: '\u21D4',
+  forall: '\u2200',
+  part: '\u2202',
+  exist: '\u2203',
+  empty: '\u2205',
+  nabla: '\u2207',
+  isin: '\u2208',
+  notin: '\u2209',
+  ni: '\u220B',
+  prod: '\u220F',
+  sum: '\u2211',
+  minus: '\u2212',
+  lowast: '\u2217',
+  radic: '\u221A',
+  prop: '\u221D',
+  infin: '\u221E',
+  ang: '\u2220',
+  and: '\u2227',
+  or: '\u2228',
+  cap: '\u2229',
+  cup: '\u222A',
+  'int': '\u222B',
+  there4: '\u2234',
+  sim: '\u223C',
+  cong: '\u2245',
+  asymp: '\u2248',
+  ne: '\u2260',
+  equiv: '\u2261',
+  le: '\u2264',
+  ge: '\u2265',
+  sub: '\u2282',
+  sup: '\u2283',
+  nsub: '\u2284',
+  sube: '\u2286',
+  supe: '\u2287',
+  oplus: '\u2295',
+  otimes: '\u2297',
+  perp: '\u22A5',
+  sdot: '\u22C5',
+  lceil: '\u2308',
+  rceil: '\u2309',
+  lfloor: '\u230A',
+  rfloor: '\u230B',
+  lang: '\u2329',
+  rang: '\u232A',
+  loz: '\u25CA',
+  spades: '\u2660',
+  clubs: '\u2663',
+  hearts: '\u2665',
+  diams: '\u2666'
+};

+List of Acorn contributors. Updated before every release.
+
+Adrian Rakovsky
+Alistair Braidwood
+Amila Welihinda
+Andres Suarez
+Angelo
+Aparajita Fishman
+Arian Stolwijk
+Artem Govorov
+Bradley Heinz
+Brandon Mills
+Charles Hughes
+Conrad Irwin
+Daniel Tschinder
+David Bonnet
+Domenico Matteo
+ehmicky
+Forbes Lindesay
+Gilad Peleg
+impinball
+Ingvar Stepanyan
+Jackson Ray Hamilton
+Jesse McCarthy
+Jiaxing Wang
+Joel Kemp
+Johannes Herr
+John-David Dalton
+Jordan Klassen
+Jürg Lehni
+Kai Cataldo
+keeyipchan
+Keheliya Gallaba
+Kevin Irish
+Kevin Kwok
+krator
+Marek
+Marijn Haverbeke
+Martin Carlberg
+Mat Garcia
+Mathias Bynens
+Mathieu 'p01' Henri
+Matthew Bastien
+Max Schaefer
+Max Zerzouri
+Mihai Bazon
+Mike Rennie
+naoh
+Nicholas C. Zakas
+Nick Fitzgerald
+Olivier Thomann
+Oskar Schöldström
+Paul Harper
+Peter Rust
+PlNG
+Prayag Verma
+ReadmeCritic
+r-e-d
+Richard Gibson
+Rich Harris
+Sebastian McKenzie
+Shahar Soel
+Simen Bekkhus
+Teddy Katz
+Timothy Gu
+Toru Nagashima
+Victor Homyakov
+Wexpo Lyu
+zsjforcn

+## 5.2.1 (2017-10-30)
+
+### Bug fixes
+
+Fix a token context corruption bug.
+
+## 5.2.0 (2017-10-30)
+
+### Bug fixes
+
+Fix token context tracking for `class` and `function` in property-name position.
+
+Make sure `%*` isn't parsed as a valid operator.
+
+The `full` and `fullAncestor` walkers no longer visit nodes multiple times.
+
+Allow shorthand properties `get` and `set` to be followed by default values.
+
+Disallow `super` when not in callee or object position.
+
+### New features
+
+Support [`directive` property](https://github.com/estree/estree/compare/b3de58c9997504d6fba04b72f76e6dd1619ee4eb...1da8e603237144f44710360f8feb7a9977e905e0) on directive expression statements.
+
+## 5.1.2 (2017-09-04)
+
+### Bug fixes
+
+Disable parsing of legacy HTML-style comments in modules.
+
+Fix parsing of async methods whose names are keywords.
+
+## 5.1.1 (2017-07-06)
+
+### Bug fixes
+
+Fix problem with disambiguating regexp and division after a class.
+
+## 5.1.0 (2017-07-05)
+
+### Bug fixes
+
+Fix tokenizing of regexps in an object-desctructuring `for`/`of` loop and after `yield`.
+
+Parse zero-prefixed numbers with non-octal digits as decimal.
+
+Allow object/array patterns in rest parameters.
+
+Don't error when `yield` is used as a property name.
+
+Allow `async` as a shorthand object property.
+
+Make the ES module version of the loose parser actually work.
+
+### New features
+
+Implement the [template literal revision proposal](https://github.com/tc39/proposal-template-literal-revision) for ES9.
+
+New walker functions `full` and `fullAncestor`.
+
+## 5.0.3 (2017-04-01)
+
+### Bug fixes
+
+Fix spurious duplicate variable definition errors for named functions.
+
+## 5.0.2 (2017-03-30)
+
+### Bug fixes
+
+A binary operator after a parenthesized arrow expression is no longer incorrectly treated as an error.
+
+## 5.0.0 (2017-03-28)
+
+### Bug fixes
+
+Raise an error for duplicated lexical bindings.
+
+Fix spurious error when an assignement expression occurred after a spread expression.
+
+Accept regular expressions after `of` (in `for`/`of`), `yield` (in a generator), and braced arrow functions.
+
+Allow labels in front or `var` declarations, even in strict mode.
+
+### Breaking changes
+
+Parse declarations following `export default` as declaration nodes, not expressions. This means that class and function declarations nodes can now have `null` as their `id`.
+
+## 4.0.11 (2017-02-07)
+
+### Bug fixes
+
+Allow all forms of member expressions to be parenthesized as lvalue.
+
+## 4.0.10 (2017-02-07)
+
+### Bug fixes
+
+Don't expect semicolons after default-exported functions or classes,
+even when they are expressions.
+
+Check for use of `'use strict'` directives in non-simple parameter
+functions, even when already in strict mode.
+
+## 4.0.9 (2017-02-06)
+
+### Bug fixes
+
+Fix incorrect error raised for parenthesized simple assignment
+targets, so that `(x) = 1` parses again.
+
+## 4.0.8 (2017-02-03)
+
+### Bug fixes
+
+Solve spurious parenthesized pattern errors by temporarily erring on
+the side of accepting programs that our delayed errors don't handle
+correctly yet.
+
+## 4.0.7 (2017-02-02)
+
+### Bug fixes
+
+Accept invalidly rejected code like `(x).y = 2` again.
+
+Don't raise an error when a function _inside_ strict code has a
+non-simple parameter list.
+
+## 4.0.6 (2017-02-02)
+
+### Bug fixes
+
+Fix exponential behavior (manifesting itself as a complete hang for
+even relatively small source files) introduced by the new 'use strict'
+check.
+
+## 4.0.5 (2017-02-02)
+
+### Bug fixes
+
+Disallow parenthesized pattern expressions.
+
+Allow keywords as export names.
+
+Don't allow the `async` keyword to be parenthesized.
+
+Properly raise an error when a keyword contains a character escape.
+
+Allow `"use strict"` to appear after other string literal expressions.
+
+Disallow labeled declarations.
+
+## 4.0.4 (2016-12-19)
+
+### Bug fixes
+
+Fix issue with loading acorn_loose.js with an AMD loader.
+
+Fix crash when `export` was followed by a keyword that can't be
+exported.
+
+## 4.0.3 (2016-08-16)
+
+### Bug fixes
+
+Allow regular function declarations inside single-statement `if`
+branches in loose mode. Forbid them entirely in strict mode.
+
+Properly parse properties named `async` in ES2017 mode.
+
+Fix bug where reserved words were broken in ES2017 mode.
+
+## 4.0.2 (2016-08-11)
+
+### Bug fixes
+
+Don't ignore period or 'e' characters after octal numbers.
+
+Fix broken parsing for call expressions in default parameter values
+of arrow functions.
+
+## 4.0.1 (2016-08-08)
+
+### Bug fixes
+
+Fix false positives in duplicated export name errors.
+
+## 4.0.0 (2016-08-07)
+
+### Breaking changes
+
+The default `ecmaVersion` option value is now 7.
+
+A number of internal method signatures changed, so plugins might need
+to be updated.
+
+### Bug fixes
+
+The parser now raises errors on duplicated export names.
+
+`arguments` and `eval` can now be used in shorthand properties.
+
+Duplicate parameter names in non-simple argument lists now always
+produce an error.
+
+### New features
+
+The `ecmaVersion` option now also accepts year-style version numbers
+(2015, etc).
+
+Support for `async`/`await` syntax when `ecmaVersion` is >= 8.
+
+Support for trailing commas in call expressions when `ecmaVersion`
+is >= 8.
+
+## 3.3.0 (2016-07-25)
+
+### Bug fixes
+
+Fix bug in tokenizing of regexp operator after a function declaration.
+
+Fix parser crash when parsing an array pattern with a hole.
+
+### New features
+
+Implement check against complex argument lists in functions that
+enable strict mode in ES7.
+
+## 3.2.0 (2016-06-07)
+
+### Bug fixes
+
+Improve handling of lack of unicode regexp support in host
+environment.
+
+Properly reject shorthand properties whose name is a keyword.
+
+Don't crash when the loose parser is called without options object.
+
+### New features
+
+Visitors created with `visit.make` now have their base as _prototype_,
+rather than copying properties into a fresh object.
+
+Make it possible to use `visit.ancestor` with a walk state.
+
+## 3.1.0 (2016-04-18)
+
+### Bug fixes
+
+Fix issue where the loose parser created invalid TemplateElement nodes
+for unclosed template literals.
+
+Properly tokenize the division operator directly after a function
+expression.
+
+Allow trailing comma in destructuring arrays.
+
+### New features
+
+The walker now allows defining handlers for `CatchClause` nodes.
+
+## 3.0.4 (2016-02-25)
+
+### Fixes
+
+Allow update expressions as left-hand-side of the ES7 exponential
+operator.
+
+## 3.0.2 (2016-02-10)
+
+### Fixes
+
+Fix bug that accidentally made `undefined` a reserved word when
+parsing ES7.
+
+## 3.0.0 (2016-02-10)
+
+### Breaking changes
+
+The default value of the `ecmaVersion` option is now 6 (used to be 5).
+
+Support for comprehension syntax (which was dropped from the draft
+spec) has been removed.
+
+### Fixes
+
+`let` and `yield` are now “contextual keywords”, meaning you can
+mostly use them as identifiers in ES5 non-strict code.
+
+A parenthesized class or function expression after `export default` is
+now parsed correctly.
+
+### New features
+
+When `ecmaVersion` is set to 7, Acorn will parse the exponentiation
+operator (`**`).
+
+The identifier character ranges are now based on Unicode 8.0.0.
+
+Plugins can now override the `raiseRecoverable` method to override the
+way non-critical errors are handled.
+
+## 2.7.0 (2016-01-04)
+
+### Fixes
+
+Stop allowing rest parameters in setters.
+
+Make sure the loose parser always attaches a `local` property to
+`ImportNamespaceSpecifier` nodes.
+
+Disallow `y` rexexp flag in ES5.
+
+Disallow `\00` and `\000` escapes in strict mode.
+
+Raise an error when an import name is a reserved word.
+
+## 2.6.4 (2015-11-12)
+
+### Fixes
+
+Fix crash in loose parser when parsing invalid object pattern.
+
+### New features
+
+Support plugins in the loose parser.
+
+## 2.6.2 (2015-11-10)
+
+### Fixes
+
+Don't crash when no options object is passed.
+
+## 2.6.0 (2015-11-09)
+
+### Fixes
+
+Add `await` as a reserved word in module sources.
+
+Disallow `yield` in a parameter default value for a generator.
+
+Forbid using a comma after a rest pattern in an array destructuring.
+
+### New features
+
+Support parsing stdin in command-line tool.
+
+## 2.5.2 (2015-10-27)
+
+### Fixes
+
+Fix bug where the walker walked an exported `let` statement as an
+expression.
+
+## 2.5.0 (2015-10-27)
+
+### Fixes
+
+Fix tokenizer support in the command-line tool.
+
+In the loose parser, don't allow non-string-literals as import
+sources.
+
+Stop allowing `new.target` outside of functions.
+
+Remove legacy `guard` and `guardedHandler` properties from try nodes.
+
+Stop allowing multiple `__proto__` properties on an object literal in
+strict mode.
+
+Don't allow rest parameters to be non-identifier patterns.
+
+Check for duplicate paramter names in arrow functions.

+Copyright (C) 2012-2017 by various contributors (see AUTHORS)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

+#!/usr/bin/env node
+'use strict';
+
+var path = require('path');
+var fs = require('fs');
+var acorn = require('../dist/acorn.js');
+
+var infile;
+var forceFile;
+var silent = false;
+var compact = false;
+var tokenize = false;
+var options = {};
+
+function help(status) {
+  var print = (status == 0) ? console.log : console.error;
+  print("usage: " + path.basename(process.argv[1]) + " [--ecma3|--ecma5|--ecma6|--ecma7|--ecma8|--ecma9|...|--ecma2015|--ecma2016|--ecma2017|--ecma2018|...]");
+  print("        [--tokenize] [--locations] [---allow-hash-bang] [--compact] [--silent] [--module] [--help] [--] [infile]");
+  process.exit(status);
+}
+
+for (var i = 2; i < process.argv.length; ++i) {
+  var arg = process.argv[i];
+  if ((arg == "-" || arg[0] != "-") && !infile) { infile = arg; }
+  else if (arg == "--" && !infile && i + 2 == process.argv.length) { forceFile = infile = process.argv[++i]; }
+  else if (arg == "--locations") { options.locations = true; }
+  else if (arg == "--allow-hash-bang") { options.allowHashBang = true; }
+  else if (arg == "--silent") { silent = true; }
+  else if (arg == "--compact") { compact = true; }
+  else if (arg == "--help") { help(0); }
+  else if (arg == "--tokenize") { tokenize = true; }
+  else if (arg == "--module") { options.sourceType = "module"; }
+  else {
+    var match = arg.match(/^--ecma(\d+)$/);
+    if (match)
+      { options.ecmaVersion = +match[1]; }
+    else
+      { help(1); }
+  }
+}
+
+function run(code) {
+  var result;
+  try {
+    if (!tokenize) {
+      result = acorn.parse(code, options);
+    } else {
+      result = [];
+      var tokenizer$$1 = acorn.tokenizer(code, options), token;
+      do {
+        token = tokenizer$$1.getToken();
+        result.push(token);
+      } while (token.type != acorn.tokTypes.eof)
+    }
+  } catch (e) {
+    console.error(e.message);
+    process.exit(1);
+  }
+  if (!silent) { console.log(JSON.stringify(result, null, compact ? null : 2)); }
+}
+
+if (forceFile || infile && infile != "-") {
+  run(fs.readFileSync(infile, "utf8"));
+} else {
+  var code = "";
+  process.stdin.resume();
+  process.stdin.on("data", function (chunk) { return code += chunk; });
+  process.stdin.on("end", function () { return run(code); });
+}

+{
+  "_args": [
+    [
+      {
+        "raw": "acorn@^5.2.1",
+        "scope": null,
+        "escapedName": "acorn",
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+  ],
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+  "_inCache": true,
+  "_location": "/acorn",
+  "_nodeVersion": "8.4.0",
+  "_npmOperationalInternal": {
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+    "tmp": "tmp/acorn-5.2.1.tgz_1509295079758_0.15344050084240735"
+  },
+  "_npmUser": {
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+    "email": "marijnh@gmail.com"
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+  "_requiredBy": [
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+  ],
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+  "_spec": "acorn@^5.2.1",
+  "_where": "/Users/kanghyeontae/IdeaProjects/YTMT/node_modules/espree",
+  "bin": {
+    "acorn": "./bin/acorn"
+  },
+  "bugs": {
+    "url": "https://github.com/ternjs/acorn/issues"
+  },
+  "contributors": [
+    {
+      "name": "List of Acorn contributors. Updated before every release."
+    },
+    {
+      "name": "Adrian Rakovsky"
+    },
+    {
+      "name": "Alistair Braidwood"
+    },
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+    },
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+    },
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+    },
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+    },
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+    },
+    {
+      "name": "Charles Hughes"
+    },
+    {
+      "name": "Conrad Irwin"
+    },
+    {
+      "name": "Daniel Tschinder"
+    },
+    {
+      "name": "David Bonnet"
+    },
+    {
+      "name": "Domenico Matteo"
+    },
+    {
+      "name": "ehmicky"
+    },
+    {
+      "name": "Forbes Lindesay"
+    },
+    {
+      "name": "Gilad Peleg"
+    },
+    {
+      "name": "impinball"
+    },
+    {
+      "name": "Ingvar Stepanyan"
+    },
+    {
+      "name": "Jackson Ray Hamilton"
+    },
+    {
+      "name": "Jesse McCarthy"
+    },
+    {
+      "name": "Jiaxing Wang"
+    },
+    {
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+    },
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+    },
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+      "name": "John-David Dalton"
+    },
+    {
+      "name": "Jordan Klassen"
+    },
+    {
+      "name": "Jürg Lehni"
+    },
+    {
+      "name": "Kai Cataldo"
+    },
+    {
+      "name": "keeyipchan"
+    },
+    {
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+    },
+    {
+      "name": "Kevin Irish"
+    },
+    {
+      "name": "Kevin Kwok"
+    },
+    {
+      "name": "krator"
+    },
+    {
+      "name": "Marek"
+    },
+    {
+      "name": "Marijn Haverbeke"
+    },
+    {
+      "name": "Martin Carlberg"
+    },
+    {
+      "name": "Mat Garcia"
+    },
+    {
+      "name": "Mathias Bynens"
+    },
+    {
+      "name": "Mathieu 'p01' Henri"
+    },
+    {
+      "name": "Matthew Bastien"
+    },
+    {
+      "name": "Max Schaefer"
+    },
+    {
+      "name": "Max Zerzouri"
+    },
+    {
+      "name": "Mihai Bazon"
+    },
+    {
+      "name": "Mike Rennie"
+    },
+    {
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+    },
+    {
+      "name": "Nicholas C. Zakas"
+    },
+    {
+      "name": "Nick Fitzgerald"
+    },
+    {
+      "name": "Olivier Thomann"
+    },
+    {
+      "name": "Oskar Schöldström"
+    },
+    {
+      "name": "Paul Harper"
+    },
+    {
+      "name": "Peter Rust"
+    },
+    {
+      "name": "PlNG"
+    },
+    {
+      "name": "Prayag Verma"
+    },
+    {
+      "name": "ReadmeCritic"
+    },
+    {
+      "name": "r-e-d"
+    },
+    {
+      "name": "Richard Gibson"
+    },
+    {
+      "name": "Rich Harris"
+    },
+    {
+      "name": "Sebastian McKenzie"
+    },
+    {
+      "name": "Shahar Soel"
+    },
+    {
+      "name": "Simen Bekkhus"
+    },
+    {
+      "name": "Teddy Katz"
+    },
+    {
+      "name": "Timothy Gu"
+    },
+    {
+      "name": "Toru Nagashima"
+    },
+    {
+      "name": "Victor Homyakov"
+    },
+    {
+      "name": "Wexpo Lyu"
+    },
+    {
+      "name": "zsjforcn"
+    }
+  ],
+  "dependencies": {},
+  "description": "ECMAScript parser",
+  "devDependencies": {
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+    "eslint-config-standard": "^7.1.0",
+    "eslint-plugin-import": "^2.2.0",
+    "eslint-plugin-promise": "^3.5.0",
+    "eslint-plugin-standard": "^2.1.1",
+    "rollup": "^0.43.0",
+    "rollup-plugin-buble": "^0.15.0",
+    "unicode-9.0.0": "^0.7.0"
+  },
+  "directories": {},
+  "dist": {
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+    "shasum": "317ac7821826c22c702d66189ab8359675f135d7",
+    "tarball": "https://registry.npmjs.org/acorn/-/acorn-5.2.1.tgz"
+  },
+  "engines": {
+    "node": ">=0.4.0"
+  },
+  "gitHead": "9924efe268e899665daeeaded9bf452ff1cb510b",
+  "homepage": "https://github.com/ternjs/acorn",
+  "license": "MIT",
+  "main": "dist/acorn.js",
+  "maintainers": [
+    {
+      "name": "marijn",
+      "email": "marijnh@gmail.com"
+    }
+  ],
+  "module": "dist/acorn.es.js",
+  "name": "acorn",
+  "optionalDependencies": {},
+  "readme": "ERROR: No README data found!",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/ternjs/acorn.git"
+  },
+  "scripts": {
+    "build": "npm run build:main && npm run build:walk && npm run build:loose && npm run build:bin",
+    "build:bin": "rollup -c rollup/config.bin.js",
+    "build:loose": "rollup -c rollup/config.loose.js && rollup -c rollup/config.loose_es.js",
+    "build:main": "rollup -c rollup/config.main.js",
+    "build:walk": "rollup -c rollup/config.walk.js",
+    "lint": "eslint src/",
+    "prepare": "npm test",
+    "pretest": "npm run build:main && npm run build:loose",
+    "test": "node test/run.js && node test/lint.js"
+  },
+  "version": "5.2.1"
+}

+The MIT License (MIT)
+
+Copyright (c) 2016 Evgeny Poberezkin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

+'use strict';
+
+var KEYWORDS = require('./keywords');
+
+module.exports = defineKeywords;
+
+
+/**
+ * Defines one or several keywords in ajv instance
+ * @param  {Ajv} ajv validator instance
+ * @param  {String|Array<String>|undefined} keyword keyword(s) to define
+ * @return {Ajv} ajv instance (for chaining)
+ */
+function defineKeywords(ajv, keyword) {
+  if (Array.isArray(keyword)) {
+    for (var i=0; i<keyword.length; i++)
+      get(keyword[i])(ajv);
+    return ajv;
+  }
+  if (keyword) {
+    get(keyword)(ajv);
+    return ajv;
+  }
+  for (keyword in KEYWORDS) get(keyword)(ajv);
+  return ajv;
+}
+
+
+defineKeywords.get = get;
+
+function get(keyword) {
+  var defFunc = KEYWORDS[keyword];
+  if (!defFunc) throw new Error('Unknown keyword ' + keyword);
+  return defFunc;
+}