Apply .gitignore

+node_modules
+package-lock.json
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
\ No newline at end of file

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

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

-../clean-css/bin/cleancss
\ No newline at end of file

-../mime/cli.js
\ No newline at end of file

-../uglify-js/bin/uglifyjs
\ No newline at end of file

-    MIT License
-
-    Copyright (c) Microsoft Corporation.
-
-    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

-# Installation
-> `npm install --save @types/babel-types`
-
-# Summary
-This package contains type definitions for babel-types (https://github.com/babel/babel/tree/master/packages/babel-types).
-
-# Details
-Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/babel-types.
-
-### Additional Details
- * Last updated: Wed, 02 Sep 2020 15:37:31 GMT
- * Dependencies: none
- * Global values: none
-
-# Credits
-These definitions were written by [Troy Gerwien](https://github.com/yortus), [Sam Baxter](https://github.com/baxtersa), [Marvin Hagemeister](https://github.com/marvinhagemeister), [Boris Cherny](https://github.com/bcherny), and [ExE Boss](https://github.com/ExE-Boss).

-{
-  "_from": "@types/babel-types@^7.0.0",
-  "_id": "@types/babel-types@7.0.9",
-  "_inBundle": false,
-  "_integrity": "sha512-qZLoYeXSTgQuK1h7QQS16hqLGdmqtRmN8w/rl3Au/l5x/zkHx+a4VHrHyBsi1I1vtK2oBHxSzKIu0R5p6spdOA==",
-  "_location": "/@types/babel-types",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "range",
-    "registry": true,
-    "raw": "@types/babel-types@^7.0.0",
-    "name": "@types/babel-types",
-    "escapedName": "@types%2fbabel-types",
-    "scope": "@types",
-    "rawSpec": "^7.0.0",
-    "saveSpec": null,
-    "fetchSpec": "^7.0.0"
-  },
-  "_requiredBy": [
-    "/@types/babylon",
-    "/constantinople"
-  ],
-  "_resolved": "https://registry.npmjs.org/@types/babel-types/-/babel-types-7.0.9.tgz",
-  "_shasum": "01d7b86949f455402a94c788883fe4ba574cad41",
-  "_spec": "@types/babel-types@^7.0.0",
-  "_where": "/Users/suyeon/Desktop/UR_Village/node_modules/constantinople",
-  "bugs": {
-    "url": "https://github.com/DefinitelyTyped/DefinitelyTyped/issues"
-  },
-  "bundleDependencies": false,
-  "contributors": [
-    {
-      "name": "Troy Gerwien",
-      "url": "https://github.com/yortus"
-    },
-    {
-      "name": "Sam Baxter",
-      "url": "https://github.com/baxtersa"
-    },
-    {
-      "name": "Marvin Hagemeister",
-      "url": "https://github.com/marvinhagemeister"
-    },
-    {
-      "name": "Boris Cherny",
-      "url": "https://github.com/bcherny"
-    },
-    {
-      "name": "ExE Boss",
-      "url": "https://github.com/ExE-Boss"
-    }
-  ],
-  "dependencies": {},
-  "deprecated": false,
-  "description": "TypeScript definitions for babel-types",
-  "homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped#readme",
-  "license": "MIT",
-  "main": "",
-  "name": "@types/babel-types",
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/DefinitelyTyped/DefinitelyTyped.git",
-    "directory": "types/babel-types"
-  },
-  "scripts": {},
-  "typeScriptVersion": "3.1",
-  "types": "index.d.ts",
-  "typesPublisherContentHash": "0c71c2106ec387ae2bfd63b4429f2e5fe534b5416b903fdf463bae67f92d35a1",
-  "typesVersions": {
-    "<=3.6": {
-      "*": [
-        "ts3.6/*"
-      ]
-    }
-  },
-  "version": "7.0.9"
-}

-    MIT License
-
-    Copyright (c) Microsoft Corporation. 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

-# Installation
-> `npm install --save @types/babylon`
-
-# Summary
-This package contains type definitions for babylon ( https://github.com/babel/babylon ).
-
-# Details
-Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/babylon
-
-Additional Details
- * Last updated: Wed, 13 Feb 2019 16:16:46 GMT
- * Dependencies: @types/babel-types
- * Global values: none
-
-# Credits
-These definitions were written by Troy Gerwien <https://github.com/yortus>, Marvin Hagemeister <https://github.com/marvinhagemeister>.

-// Type definitions for babylon 6.16
-// Project: https://github.com/babel/babylon, https://babeljs.io
-// Definitions by: Troy Gerwien <https://github.com/yortus>
-//                 Marvin Hagemeister <https://github.com/marvinhagemeister>
-// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.8
-
-import { File, Expression } from 'babel-types';
-
-export function parse(code: string, opts?: BabylonOptions): File;
-
-export function parseExpression(input: string, options?: BabylonOptions): Expression;
-
-export interface BabylonOptions {
-    /**
-     * By default, import and export declarations can only appear at a program's top level.
-     * Setting this option to true allows them anywhere where a statement is allowed.
-     */
-    allowImportExportEverywhere?: boolean;
-
-    /**
-     * By default, a return statement at the top level raises an error. Set this to true to accept such code.
-     */
-    allowReturnOutsideFunction?: boolean;
-
-    allowSuperOutsideMethod?: boolean;
-
-    /**
-     * Indicate the mode the code should be parsed in. Can be either "script" or "module".
-     */
-    sourceType?: 'script' | 'module';
-
-    /**
-     * Correlate output AST nodes with their source filename. Useful when
-     * generating code and source maps from the ASTs of multiple input files.
-     */
-    sourceFilename?: string;
-
-    /**
-     * Array containing the plugins that you want to enable.
-     */
-    plugins?: PluginName[];
-}
-
-export type PluginName =
-    'estree' |
-    'jsx' |
-    'flow' |
-    'typescript' |
-    'classConstructorCall' |
-    'doExpressions' |
-    'objectRestSpread' |
-    'decorators' |
-    'classProperties' |
-    'exportExtensions' |
-    'asyncGenerators' |
-    'functionBind' |
-    'functionSent' |
-    'dynamicImport';

-{
-  "_from": "@types/babylon@^6.16.2",
-  "_id": "@types/babylon@6.16.5",
-  "_inBundle": false,
-  "_integrity": "sha512-xH2e58elpj1X4ynnKp9qSnWlsRTIs6n3tgLGNfwAGHwePw0mulHQllV34n0T25uYSu1k0hRKkWXF890B1yS47w==",
-  "_location": "/@types/babylon",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "range",
-    "registry": true,
-    "raw": "@types/babylon@^6.16.2",
-    "name": "@types/babylon",
-    "escapedName": "@types%2fbabylon",
-    "scope": "@types",
-    "rawSpec": "^6.16.2",
-    "saveSpec": null,
-    "fetchSpec": "^6.16.2"
-  },
-  "_requiredBy": [
-    "/constantinople"
-  ],
-  "_resolved": "https://registry.npmjs.org/@types/babylon/-/babylon-6.16.5.tgz",
-  "_shasum": "1c5641db69eb8cdf378edd25b4be7754beeb48b4",
-  "_spec": "@types/babylon@^6.16.2",
-  "_where": "/Users/suyeon/Desktop/UR_Village/node_modules/constantinople",
-  "bugs": {
-    "url": "https://github.com/DefinitelyTyped/DefinitelyTyped/issues"
-  },
-  "bundleDependencies": false,
-  "contributors": [
-    {
-      "name": "Troy Gerwien",
-      "url": "https://github.com/yortus"
-    },
-    {
-      "name": "Marvin Hagemeister",
-      "url": "https://github.com/marvinhagemeister"
-    }
-  ],
-  "dependencies": {
-    "@types/babel-types": "*"
-  },
-  "deprecated": false,
-  "description": "TypeScript definitions for babylon",
-  "homepage": "https://github.com/DefinitelyTyped/DefinitelyTyped#readme",
-  "license": "MIT",
-  "main": "",
-  "name": "@types/babylon",
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/DefinitelyTyped/DefinitelyTyped.git"
-  },
-  "scripts": {},
-  "typeScriptVersion": "2.8",
-  "types": "index",
-  "typesPublisherContentHash": "d6861e06508c0c54a6a46d7b72e96db7907de3621ac44aab8a3e647b8431cddd",
-  "version": "6.16.5"
-}

-1.3.7 / 2019-04-29
-==================
-
-  * deps: negotiator@0.6.2
-    - Fix sorting charset, encoding, and language with extra parameters
-
-1.3.6 / 2019-04-28
-==================
-
-  * deps: mime-types@~2.1.24
-    - deps: mime-db@~1.40.0
-
-1.3.5 / 2018-02-28
-==================
-
-  * deps: mime-types@~2.1.18
-    - deps: mime-db@~1.33.0
-
-1.3.4 / 2017-08-22
-==================
-
-  * deps: mime-types@~2.1.16
-    - deps: mime-db@~1.29.0
-
-1.3.3 / 2016-05-02
-==================
-
-  * deps: mime-types@~2.1.11
-    - deps: mime-db@~1.23.0
-  * deps: negotiator@0.6.1
-    - perf: improve `Accept` parsing speed
-    - perf: improve `Accept-Charset` parsing speed
-    - perf: improve `Accept-Encoding` parsing speed
-    - perf: improve `Accept-Language` parsing speed
-
-1.3.2 / 2016-03-08
-==================
-
-  * deps: mime-types@~2.1.10
-    - Fix extension of `application/dash+xml`
-    - Update primary extension for `audio/mp4`
-    - deps: mime-db@~1.22.0
-
-1.3.1 / 2016-01-19
-==================
-
-  * deps: mime-types@~2.1.9
-    - deps: mime-db@~1.21.0
-
-1.3.0 / 2015-09-29
-==================
-
-  * deps: mime-types@~2.1.7
-    - deps: mime-db@~1.19.0
-  * deps: negotiator@0.6.0
-    - Fix including type extensions in parameters in `Accept` parsing
-    - Fix parsing `Accept` parameters with quoted equals
-    - Fix parsing `Accept` parameters with quoted semicolons
-    - Lazy-load modules from main entry point
-    - perf: delay type concatenation until needed
-    - perf: enable strict mode
-    - perf: hoist regular expressions
-    - perf: remove closures getting spec properties
-    - perf: remove a closure from media type parsing
-    - perf: remove property delete from media type parsing
-
-1.2.13 / 2015-09-06
-===================
-
-  * deps: mime-types@~2.1.6
-    - deps: mime-db@~1.18.0
-
-1.2.12 / 2015-07-30
-===================
-
-  * deps: mime-types@~2.1.4
-    - deps: mime-db@~1.16.0
-
-1.2.11 / 2015-07-16
-===================
-
-  * deps: mime-types@~2.1.3
-    - deps: mime-db@~1.15.0
-
-1.2.10 / 2015-07-01
-===================
-
-  * deps: mime-types@~2.1.2
-    - deps: mime-db@~1.14.0
-
-1.2.9 / 2015-06-08
-==================
-
-  * deps: mime-types@~2.1.1
-    - perf: fix deopt during mapping
-
-1.2.8 / 2015-06-07
-==================
-
-  * deps: mime-types@~2.1.0
-    - deps: mime-db@~1.13.0
-  * perf: avoid argument reassignment & argument slice
-  * perf: avoid negotiator recursive construction
-  * perf: enable strict mode
-  * perf: remove unnecessary bitwise operator
-
-1.2.7 / 2015-05-10
-==================
-
-  * deps: negotiator@0.5.3
-    - Fix media type parameter matching to be case-insensitive
-
-1.2.6 / 2015-05-07
-==================
-
-  * deps: mime-types@~2.0.11
-    - deps: mime-db@~1.9.1
-  * deps: negotiator@0.5.2
-    - Fix comparing media types with quoted values
-    - Fix splitting media types with quoted commas
-
-1.2.5 / 2015-03-13
-==================
-
-  * deps: mime-types@~2.0.10
-    - deps: mime-db@~1.8.0
-
-1.2.4 / 2015-02-14
-==================
-
-  * Support Node.js 0.6
-  * deps: mime-types@~2.0.9
-    - deps: mime-db@~1.7.0
-  * deps: negotiator@0.5.1
-    - Fix preference sorting to be stable for long acceptable lists
-
-1.2.3 / 2015-01-31
-==================
-
-  * deps: mime-types@~2.0.8
-    - deps: mime-db@~1.6.0
-
-1.2.2 / 2014-12-30
-==================
-
-  * deps: mime-types@~2.0.7
-    - deps: mime-db@~1.5.0
-
-1.2.1 / 2014-12-30
-==================
-
-  * deps: mime-types@~2.0.5
-    - deps: mime-db@~1.3.1
-
-1.2.0 / 2014-12-19
-==================
-
-  * deps: negotiator@0.5.0
-    - Fix list return order when large accepted list
-    - Fix missing identity encoding when q=0 exists
-    - Remove dynamic building of Negotiator class
-
-1.1.4 / 2014-12-10
-==================
-
-  * deps: mime-types@~2.0.4
-    - deps: mime-db@~1.3.0
-
-1.1.3 / 2014-11-09
-==================
-
-  * deps: mime-types@~2.0.3
-    - deps: mime-db@~1.2.0
-
-1.1.2 / 2014-10-14
-==================
-
-  * deps: negotiator@0.4.9
-    - Fix error when media type has invalid parameter
-
-1.1.1 / 2014-09-28
-==================
-
-  * deps: mime-types@~2.0.2
-    - deps: mime-db@~1.1.0
-  * deps: negotiator@0.4.8
-    - Fix all negotiations to be case-insensitive
-    - Stable sort preferences of same quality according to client order
-
-1.1.0 / 2014-09-02
-==================
-
-  * update `mime-types`
-
-1.0.7 / 2014-07-04
-==================
-
-  * Fix wrong type returned from `type` when match after unknown extension
-
-1.0.6 / 2014-06-24
-==================
-
-  * deps: negotiator@0.4.7
-
-1.0.5 / 2014-06-20
-==================
-
- * fix crash when unknown extension given
-
-1.0.4 / 2014-06-19
-==================
-
-  * use `mime-types`
-
-1.0.3 / 2014-06-11
-==================
-
-  * deps: negotiator@0.4.6
-    - Order by specificity when quality is the same
-
-1.0.2 / 2014-05-29
-==================
-
-  * Fix interpretation when header not in request
-  * deps: pin negotiator@0.4.5
-
-1.0.1 / 2014-01-18
-==================
-
-  * Identity encoding isn't always acceptable
-  * deps: negotiator@~0.4.0
-
-1.0.0 / 2013-12-27
-==================
-
-  * Genesis

-(The MIT License)
-
-Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
-Copyright (c) 2015 Douglas Christopher Wilson <doug@somethingdoug.com>
-
-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.

-# accepts
-
-[![NPM Version][npm-version-image]][npm-url]
-[![NPM Downloads][npm-downloads-image]][npm-url]
-[![Node.js Version][node-version-image]][node-version-url]
-[![Build Status][travis-image]][travis-url]
-[![Test Coverage][coveralls-image]][coveralls-url]
-
-Higher level content negotiation based on [negotiator](https://www.npmjs.com/package/negotiator).
-Extracted from [koa](https://www.npmjs.com/package/koa) for general use.
-
-In addition to negotiator, it allows:
-
-- Allows types as an array or arguments list, ie `(['text/html', 'application/json'])`
-  as well as `('text/html', 'application/json')`.
-- Allows type shorthands such as `json`.
-- Returns `false` when no types match
-- Treats non-existent headers as `*`
-
-## Installation
-
-This is a [Node.js](https://nodejs.org/en/) module available through the
-[npm registry](https://www.npmjs.com/). Installation is done using the
-[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
-
-```sh
-$ npm install accepts
-```
-
-## API
-
-<!-- eslint-disable no-unused-vars -->
-
-```js
-var accepts = require('accepts')
-```
-
-### accepts(req)
-
-Create a new `Accepts` object for the given `req`.
-
-#### .charset(charsets)
-
-Return the first accepted charset. If nothing in `charsets` is accepted,
-then `false` is returned.
-
-#### .charsets()
-
-Return the charsets that the request accepts, in the order of the client's
-preference (most preferred first).
-
-#### .encoding(encodings)
-
-Return the first accepted encoding. If nothing in `encodings` is accepted,
-then `false` is returned.
-
-#### .encodings()
-
-Return the encodings that the request accepts, in the order of the client's
-preference (most preferred first).
-
-#### .language(languages)
-
-Return the first accepted language. If nothing in `languages` is accepted,
-then `false` is returned.
-
-#### .languages()
-
-Return the languages that the request accepts, in the order of the client's
-preference (most preferred first).
-
-#### .type(types)
-
-Return the first accepted type (and it is returned as the same text as what
-appears in the `types` array). If nothing in `types` is accepted, then `false`
-is returned.
-
-The `types` array can contain full MIME types or file extensions. Any value
-that is not a full MIME types is passed to `require('mime-types').lookup`.
-
-#### .types()
-
-Return the types that the request accepts, in the order of the client's
-preference (most preferred first).
-
-## Examples
-
-### Simple type negotiation
-
-This simple example shows how to use `accepts` to return a different typed
-respond body based on what the client wants to accept. The server lists it's
-preferences in order and will get back the best match between the client and
-server.
-
-```js
-var accepts = require('accepts')
-var http = require('http')
-
-function app (req, res) {
-  var accept = accepts(req)
-
-  // the order of this list is significant; should be server preferred order
-  switch (accept.type(['json', 'html'])) {
-    case 'json':
-      res.setHeader('Content-Type', 'application/json')
-      res.write('{"hello":"world!"}')
-      break
-    case 'html':
-      res.setHeader('Content-Type', 'text/html')
-      res.write('<b>hello, world!</b>')
-      break
-    default:
-      // the fallback is text/plain, so no need to specify it above
-      res.setHeader('Content-Type', 'text/plain')
-      res.write('hello, world!')
-      break
-  }
-
-  res.end()
-}
-
-http.createServer(app).listen(3000)
-```
-
-You can test this out with the cURL program:
-```sh
-curl -I -H'Accept: text/html' http://localhost:3000/
-```
-
-## License
-
-[MIT](LICENSE)
-
-[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/accepts/master
-[coveralls-url]: https://coveralls.io/r/jshttp/accepts?branch=master
-[node-version-image]: https://badgen.net/npm/node/accepts
-[node-version-url]: https://nodejs.org/en/download
-[npm-downloads-image]: https://badgen.net/npm/dm/accepts
-[npm-url]: https://npmjs.org/package/accepts
-[npm-version-image]: https://badgen.net/npm/v/accepts
-[travis-image]: https://badgen.net/travis/jshttp/accepts/master
-[travis-url]: https://travis-ci.org/jshttp/accepts

-/*!
- * accepts
- * Copyright(c) 2014 Jonathan Ong
- * Copyright(c) 2015 Douglas Christopher Wilson
- * MIT Licensed
- */
-
-'use strict'
-
-/**
- * Module dependencies.
- * @private
- */
-
-var Negotiator = require('negotiator')
-var mime = require('mime-types')
-
-/**
- * Module exports.
- * @public
- */
-
-module.exports = Accepts
-
-/**
- * Create a new Accepts object for the given req.
- *
- * @param {object} req
- * @public
- */
-
-function Accepts (req) {
-  if (!(this instanceof Accepts)) {
-    return new Accepts(req)
-  }
-
-  this.headers = req.headers
-  this.negotiator = new Negotiator(req)
-}
-
-/**
- * Check if the given `type(s)` is acceptable, returning
- * the best match when true, otherwise `undefined`, in which
- * case you should respond with 406 "Not Acceptable".
- *
- * The `type` value may be a single mime type string
- * such as "application/json", the extension name
- * such as "json" or an array `["json", "html", "text/plain"]`. When a list
- * or array is given the _best_ match, if any is returned.
- *
- * Examples:
- *
- *     // Accept: text/html
- *     this.types('html');
- *     // => "html"
- *
- *     // Accept: text/*, application/json
- *     this.types('html');
- *     // => "html"
- *     this.types('text/html');
- *     // => "text/html"
- *     this.types('json', 'text');
- *     // => "json"
- *     this.types('application/json');
- *     // => "application/json"
- *
- *     // Accept: text/*, application/json
- *     this.types('image/png');
- *     this.types('png');
- *     // => undefined
- *
- *     // Accept: text/*;q=.5, application/json
- *     this.types(['html', 'json']);
- *     this.types('html', 'json');
- *     // => "json"
- *
- * @param {String|Array} types...
- * @return {String|Array|Boolean}
- * @public
- */
-
-Accepts.prototype.type =
-Accepts.prototype.types = function (types_) {
-  var types = types_
-
-  // support flattened arguments
-  if (types && !Array.isArray(types)) {
-    types = new Array(arguments.length)
-    for (var i = 0; i < types.length; i++) {
-      types[i] = arguments[i]
-    }
-  }
-
-  // no types, return all requested types
-  if (!types || types.length === 0) {
-    return this.negotiator.mediaTypes()
-  }
-
-  // no accept header, return first given type
-  if (!this.headers.accept) {
-    return types[0]
-  }
-
-  var mimes = types.map(extToMime)
-  var accepts = this.negotiator.mediaTypes(mimes.filter(validMime))
-  var first = accepts[0]
-
-  return first
-    ? types[mimes.indexOf(first)]
-    : false
-}
-
-/**
- * Return accepted encodings or best fit based on `encodings`.
- *
- * Given `Accept-Encoding: gzip, deflate`
- * an array sorted by quality is returned:
- *
- *     ['gzip', 'deflate']
- *
- * @param {String|Array} encodings...
- * @return {String|Array}
- * @public
- */
-
-Accepts.prototype.encoding =
-Accepts.prototype.encodings = function (encodings_) {
-  var encodings = encodings_
-
-  // support flattened arguments
-  if (encodings && !Array.isArray(encodings)) {
-    encodings = new Array(arguments.length)
-    for (var i = 0; i < encodings.length; i++) {
-      encodings[i] = arguments[i]
-    }
-  }
-
-  // no encodings, return all requested encodings
-  if (!encodings || encodings.length === 0) {
-    return this.negotiator.encodings()
-  }
-
-  return this.negotiator.encodings(encodings)[0] || false
-}
-
-/**
- * Return accepted charsets or best fit based on `charsets`.
- *
- * Given `Accept-Charset: utf-8, iso-8859-1;q=0.2, utf-7;q=0.5`
- * an array sorted by quality is returned:
- *
- *     ['utf-8', 'utf-7', 'iso-8859-1']
- *
- * @param {String|Array} charsets...
- * @return {String|Array}
- * @public
- */
-
-Accepts.prototype.charset =
-Accepts.prototype.charsets = function (charsets_) {
-  var charsets = charsets_
-
-  // support flattened arguments
-  if (charsets && !Array.isArray(charsets)) {
-    charsets = new Array(arguments.length)
-    for (var i = 0; i < charsets.length; i++) {
-      charsets[i] = arguments[i]
-    }
-  }
-
-  // no charsets, return all requested charsets
-  if (!charsets || charsets.length === 0) {
-    return this.negotiator.charsets()
-  }
-
-  return this.negotiator.charsets(charsets)[0] || false
-}
-
-/**
- * Return accepted languages or best fit based on `langs`.
- *
- * Given `Accept-Language: en;q=0.8, es, pt`
- * an array sorted by quality is returned:
- *
- *     ['es', 'pt', 'en']
- *
- * @param {String|Array} langs...
- * @return {Array|String}
- * @public
- */
-
-Accepts.prototype.lang =
-Accepts.prototype.langs =
-Accepts.prototype.language =
-Accepts.prototype.languages = function (languages_) {
-  var languages = languages_
-
-  // support flattened arguments
-  if (languages && !Array.isArray(languages)) {
-    languages = new Array(arguments.length)
-    for (var i = 0; i < languages.length; i++) {
-      languages[i] = arguments[i]
-    }
-  }
-
-  // no languages, return all requested languages
-  if (!languages || languages.length === 0) {
-    return this.negotiator.languages()
-  }
-
-  return this.negotiator.languages(languages)[0] || false
-}
-
-/**
- * Convert extnames to mime.
- *
- * @param {String} type
- * @return {String}
- * @private
- */
-
-function extToMime (type) {
-  return type.indexOf('/') === -1
-    ? mime.lookup(type)
-    : type
-}
-
-/**
- * Check if mime is valid.
- *
- * @param {String} type
- * @return {String}
- * @private
- */
-
-function validMime (type) {
-  return typeof type === 'string'
-}

-{
-  "_from": "accepts@~1.3.5",
-  "_id": "accepts@1.3.7",
-  "_inBundle": false,
-  "_integrity": "sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==",
-  "_location": "/accepts",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "range",
-    "registry": true,
-    "raw": "accepts@~1.3.5",
-    "name": "accepts",
-    "escapedName": "accepts",
-    "rawSpec": "~1.3.5",
-    "saveSpec": null,
-    "fetchSpec": "~1.3.5"
-  },
-  "_requiredBy": [
-    "/express"
-  ],
-  "_resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
-  "_shasum": "531bc726517a3b2b41f850021c6cc15eaab507cd",
-  "_spec": "accepts@~1.3.5",
-  "_where": "/Users/suyeon/Desktop/UR_Village/node_modules/express",
-  "bugs": {
-    "url": "https://github.com/jshttp/accepts/issues"
-  },
-  "bundleDependencies": false,
-  "contributors": [
-    {
-      "name": "Douglas Christopher Wilson",
-      "email": "doug@somethingdoug.com"
-    },
-    {
-      "name": "Jonathan Ong",
-      "email": "me@jongleberry.com",
-      "url": "http://jongleberry.com"
-    }
-  ],
-  "dependencies": {
-    "mime-types": "~2.1.24",
-    "negotiator": "0.6.2"
-  },
-  "deprecated": false,
-  "description": "Higher-level content negotiation",
-  "devDependencies": {
-    "deep-equal": "1.0.1",
-    "eslint": "5.16.0",
-    "eslint-config-standard": "12.0.0",
-    "eslint-plugin-import": "2.17.2",
-    "eslint-plugin-markdown": "1.0.0",
-    "eslint-plugin-node": "8.0.1",
-    "eslint-plugin-promise": "4.1.1",
-    "eslint-plugin-standard": "4.0.0",
-    "mocha": "6.1.4",
-    "nyc": "14.0.0"
-  },
-  "engines": {
-    "node": ">= 0.6"
-  },
-  "files": [
-    "LICENSE",
-    "HISTORY.md",
-    "index.js"
-  ],
-  "homepage": "https://github.com/jshttp/accepts#readme",
-  "keywords": [
-    "content",
-    "negotiation",
-    "accept",
-    "accepts"
-  ],
-  "license": "MIT",
-  "name": "accepts",
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/jshttp/accepts.git"
-  },
-  "scripts": {
-    "lint": "eslint --plugin markdown --ext js,md .",
-    "test": "mocha --reporter spec --check-leaks --bail test/",
-    "test-cov": "nyc --reporter=html --reporter=text npm test",
-    "test-travis": "nyc --reporter=text npm test"
-  },
-  "version": "1.3.7"
-}

-Copyright (c) 2014 Forbes Lindesay
-
-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.
\ No newline at end of file

-# acorn-globals
-
-Detect global variables in JavaScript using acorn
-
-[![Build Status](https://img.shields.io/travis/ForbesLindesay/acorn-globals/master.svg)](https://travis-ci.org/ForbesLindesay/acorn-globals)
-[![Dependency Status](https://img.shields.io/david/ForbesLindesay/acorn-globals.svg)](https://david-dm.org/ForbesLindesay/acorn-globals)
-[![NPM version](https://img.shields.io/npm/v/acorn-globals.svg)](https://www.npmjs.org/package/acorn-globals)
-
-## Installation
-
-    npm install acorn-globals
-
-## Usage
-
-detect.js
-
-```js
-var fs = require('fs');
-var detect = require('acorn-globals');
-
-var src = fs.readFileSync(__dirname + '/input.js', 'utf8');
-
-var scope = detect(src);
-console.dir(scope);
-```
-
-input.js
-
-```js
-var x = 5;
-var y = 3, z = 2;
-
-w.foo();
-w = 2;
-
-RAWR=444;
-RAWR.foo();
-
-BLARG=3;
-
-foo(function () {
-    var BAR = 3;
-    process.nextTick(function (ZZZZZZZZZZZZ) {
-        console.log('beep boop');
-        var xyz = 4;
-        x += 10;
-        x.zzzzzz;
-        ZZZ=6;
-    });
-    function doom () {
-    }
-    ZZZ.foo();
-
-});
-
-console.log(xyz);
-```
-
-output:
-
-```
-$ node example/detect.js
-[ { name: 'BLARG', nodes: [ [Object] ] },
-  { name: 'RAWR', nodes: [ [Object], [Object] ] },
-  { name: 'ZZZ', nodes: [ [Object], [Object] ] },
-  { name: 'console', nodes: [ [Object], [Object] ] },
-  { name: 'foo', nodes: [ [Object] ] },
-  { name: 'process', nodes: [ [Object] ] },
-  { name: 'w', nodes: [ [Object], [Object] ] },
-  { name: 'xyz', nodes: [ [Object] ] } ]
-```
-
-
-## License
-
-  MIT

-'use strict';
-
-var acorn = require('acorn');
-var walk = require('acorn/dist/walk');
-
-function isScope(node) {
-  return node.type === 'FunctionExpression' || node.type === 'FunctionDeclaration' || node.type === 'ArrowFunctionExpression' || node.type === 'Program';
-}
-function isBlockScope(node) {
-  return node.type === 'BlockStatement' || isScope(node);
-}
-
-function declaresArguments(node) {
-  return node.type === 'FunctionExpression' || node.type === 'FunctionDeclaration';
-}
-
-function declaresThis(node) {
-  return node.type === 'FunctionExpression' || node.type === 'FunctionDeclaration';
-}
-
-function reallyParse(source) {
-  return acorn.parse(source, {
-    allowReturnOutsideFunction: true,
-    allowImportExportEverywhere: true,
-    allowHashBang: true
-  });
-}
-module.exports = findGlobals;
-module.exports.parse = reallyParse;
-function findGlobals(source) {
-  var globals = [];
-  var ast;
-  // istanbul ignore else
-  if (typeof source === 'string') {
-    ast = reallyParse(source);
-  } else {
-    ast = source;
-  }
-  // istanbul ignore if
-  if (!(ast && typeof ast === 'object' && ast.type === 'Program')) {
-    throw new TypeError('Source must be either a string of JavaScript or an acorn AST');
-  }
-  var declareFunction = function (node) {
-    var fn = node;
-    fn.locals = fn.locals || {};
-    node.params.forEach(function (node) {
-      declarePattern(node, fn);
-    });
-    if (node.id) {
-      fn.locals[node.id.name] = true;
-    }
-  }
-  var declarePattern = function (node, parent) {
-    switch (node.type) {
-      case 'Identifier':
-        parent.locals[node.name] = true;
-        break;
-      case 'ObjectPattern':
-        node.properties.forEach(function (node) {
-          declarePattern(node.value, parent);
-        });
-        break;
-      case 'ArrayPattern':
-        node.elements.forEach(function (node) {
-          if (node) declarePattern(node, parent);
-        });
-        break;
-      case 'RestElement':
-        declarePattern(node.argument, parent);
-        break;
-      case 'AssignmentPattern':
-        declarePattern(node.left, parent);
-        break;
-      // istanbul ignore next
-      default:
-        throw new Error('Unrecognized pattern type: ' + node.type);
-    }
-  }
-  var declareModuleSpecifier = function (node, parents) {
-    ast.locals = ast.locals || {};
-    ast.locals[node.local.name] = true;
-  }
-  walk.ancestor(ast, {
-    'VariableDeclaration': function (node, parents) {
-      var parent = null;
-      for (var i = parents.length - 1; i >= 0 && parent === null; i--) {
-        if (node.kind === 'var' ? isScope(parents[i]) : isBlockScope(parents[i])) {
-          parent = parents[i];
-        }
-      }
-      parent.locals = parent.locals || {};
-      node.declarations.forEach(function (declaration) {
-        declarePattern(declaration.id, parent);
-      });
-    },
-    'FunctionDeclaration': function (node, parents) {
-      var parent = null;
-      for (var i = parents.length - 2; i >= 0 && parent === null; i--) {
-        if (isScope(parents[i])) {
-          parent = parents[i];
-        }
-      }
-      parent.locals = parent.locals || {};
-      parent.locals[node.id.name] = true;
-      declareFunction(node);
-    },
-    'Function': declareFunction,
-    'ClassDeclaration': function (node, parents) {
-      var parent = null;
-      for (var i = parents.length - 2; i >= 0 && parent === null; i--) {
-        if (isScope(parents[i])) {
-          parent = parents[i];
-        }
-      }
-      parent.locals = parent.locals || {};
-      parent.locals[node.id.name] = true;
-    },
-    'TryStatement': function (node) {
-      if (node.handler === null) return;
-      node.handler.locals = node.handler.locals || {};
-      node.handler.locals[node.handler.param.name] = true;
-    },
-    'ImportDefaultSpecifier': declareModuleSpecifier,
-    'ImportSpecifier': declareModuleSpecifier,
-    'ImportNamespaceSpecifier': declareModuleSpecifier
-  });
-  function identifier(node, parents) {
-    var name = node.name;
-    if (name === 'undefined') return;
-    for (var i = 0; i < parents.length; i++) {
-      if (name === 'arguments' && declaresArguments(parents[i])) {
-        return;
-      }
-      if (parents[i].locals && name in parents[i].locals) {
-        return;
-      }
-    }
-    node.parents = parents;
-    globals.push(node);
-  }
-  walk.ancestor(ast, {
-    'VariablePattern': identifier,
-    'Identifier': identifier,
-    'ThisExpression': function (node, parents) {
-      for (var i = 0; i < parents.length; i++) {
-        if (declaresThis(parents[i])) {
-          return;
-        }
-      }
-      node.parents = parents;
-      globals.push(node);
-    }
-  });
-  var groupedGlobals = {};
-  globals.forEach(function (node) {
-    var name = node.type === 'ThisExpression' ? 'this' : node.name;
-    groupedGlobals[name] = (groupedGlobals[name] || []);
-    groupedGlobals[name].push(node);
-  });
-  return Object.keys(groupedGlobals).sort().map(function (name) {
-    return {name: name, nodes: groupedGlobals[name]};
-  });
-}

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

-/.tern-port
-/test
-/local
-/rollup
-/bin/generate-identifier-regex.js
-/bin/update_authors.sh
-.editorconfig
-.gitattributes
-.tern-project
-.travis.yml

-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
-Forbes Lindesay
-Gilad Peleg
-impinball
-Ingvar Stepanyan
-Jackson Ray Hamilton
-Jesse McCarthy
-Jiaxing Wang
-Joel Kemp
-Johannes Herr
-Jordan Klassen
-Jürg Lehni
-Kai Cataldo
-keeyipchan
-Keheliya Gallaba
-Kevin Irish
-Kevin Kwok
-krator
-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
-Simen Bekkhus
-Timothy Gu
-Toru Nagashima
-Wexpo Lyu
-zsjforcn

-## 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) 2012-2016 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|...|--ecma2015|--ecma2016|...]")
-  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
-  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

-{
-  "_from": "acorn@^4.0.4",
-  "_id": "acorn@4.0.13",
-  "_inBundle": false,
-  "_integrity": "sha1-EFSVrlNh1pe9GVyCUZLhrX8lN4c=",
-  "_location": "/acorn-globals/acorn",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "range",
-    "registry": true,
-    "raw": "acorn@^4.0.4",
-    "name": "acorn",
-    "escapedName": "acorn",
-    "rawSpec": "^4.0.4",
-    "saveSpec": null,
-    "fetchSpec": "^4.0.4"
-  },
-  "_requiredBy": [
-    "/acorn-globals"
-  ],
-  "_resolved": "https://registry.npmjs.org/acorn/-/acorn-4.0.13.tgz",
-  "_shasum": "105495ae5361d697bd195c825192e1ad7f253787",
-  "_spec": "acorn@^4.0.4",
-  "_where": "/Users/suyeon/Desktop/UR_Village/node_modules/acorn-globals",
-  "bin": {
-    "acorn": "bin/acorn"
-  },
-  "bugs": {
-    "url": "https://github.com/ternjs/acorn/issues"
-  },
-  "bundleDependencies": false,
-  "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": "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": "Kai Cataldo"
-    },
-    {
-      "name": "keeyipchan"
-    },
-    {
-      "name": "Keheliya Gallaba"
-    },
-    {
-      "name": "Kevin Irish"
-    },
-    {
-      "name": "Kevin Kwok"
-    },
-    {
-      "name": "krator"
-    },
-    {
-      "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"
-    },
-    {
-      "name": "naoh"
-    },
-    {
-      "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": "Simen Bekkhus"
-    },
-    {
-      "name": "Timothy Gu"
-    },
-    {
-      "name": "Toru Nagashima"
-    },
-    {
-      "name": "Wexpo Lyu"
-    },
-    {
-      "name": "zsjforcn"
-    }
-  ],
-  "deprecated": false,
-  "description": "ECMAScript parser",
-  "devDependencies": {
-    "rollup": "^0.34.1",
-    "rollup-plugin-buble": "^0.11.0",
-    "unicode-9.0.0": "^0.7.0"
-  },
-  "engines": {
-    "node": ">=0.4.0"
-  },
-  "homepage": "https://github.com/ternjs/acorn",
-  "jsnext:main": "dist/acorn.es.js",
-  "license": "MIT",
-  "main": "dist/acorn.js",
-  "maintainers": [
-    {
-      "name": "Marijn Haverbeke",
-      "email": "marijnh@gmail.com",
-      "url": "http://marijnhaverbeke.nl"
-    },
-    {
-      "name": "Ingvar Stepanyan",
-      "email": "me@rreverser.com",
-      "url": "http://rreverser.com/"
-    }
-  ],
-  "name": "acorn",
-  "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": "4.0.13"
-}

-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|...|--ecma2015|--ecma2016|...]")
-  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 == "--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 {
-    let match = arg.match(/^--ecma(\d+)$/)
-    if (match)
-      options.ecmaVersion = +match[1]
-    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, keywords as keywordTypes} 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 = "4.0.11"
-
-// 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)
-}
-
-// This is a terrible kludge to support the existing, pre-ES6
-// interface where the loose parser module retroactively adds exports
-// to this module.
-export let parse_dammit, LooseParser, pluginsLoose
-export function addLooseExports(parse, Parser, plugins) {
-  parse_dammit = parse
-  LooseParser = Parser
-  pluginsLoose = plugins
-}

-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 {addLooseExports, defaultOptions} from "../index"
-import {LooseParser, pluginsLoose} from "./state"
-import "./tokenize"
-import "./statement"
-import "./expression"
-
-export {LooseParser, pluginsLoose} from "./state"
-
-defaultOptions.tabSize = 4
-
-export function parse_dammit(input, options) {
-  let p = new LooseParser(input, options)
-  p.next()
-  return p.parseTopLevel()
-}
-
-addLooseExports(parse_dammit, LooseParser, pluginsLoose)

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

-import {tokenizer, SourceLocation, tokTypes as tt, Node, lineBreak, isNewLine} from "../index"
-
-// 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
-    this.inAsync = false
-    // 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 "../index"
-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":
-      if (this.inAsync && node.name === "await")
-        this.raise(node.start, "Can not use 'await' as identifier inside an async function")
-      break
-
-    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
-        this.toAssignable(node.left, isBinding)
-        // falls through to AssignmentPattern
-      } else {
-        this.raise(node.left.end, "Only '=' operator can be used for specifying default value.")
-        break
-      }
-
-    case "AssignmentPattern":
-      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, 5, 6 (2015), 7 (2016), or 8 (2017). This influences support
-  // for strict mode, the set of reserved words, and support for
-  // new syntax features. The default is 7.
-  ecmaVersion: 7,
-  // `sourceType` indicates the mode the code should be parsed in.
-  // Can be either `"script"` or `"module"`. This influences global
-  // strict mode and parsing of `import` and `export` declarations.
-  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.ecmaVersion >= 2015)
-    options.ecmaVersion -= 2009
-
-  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, skipWhiteSpace} from "./whitespace"
-
-const pp = Parser.prototype
-
-// ## Parser utilities
-
-const literal = /^(?:'((?:[^\']|\.)*)'|"((?:[^\"]|\.)*)"|;)/
-pp.strictDirective = function(start) {
-  for (;;) {
-    skipWhiteSpace.lastIndex = start
-    start += skipWhiteSpace.exec(this.input)[0].length
-    let match = literal.exec(this.input.slice(start))
-    if (!match) return false
-    if ((match[1] || match[2]) == "use strict") return true
-    start += match[0].length
-  }
-}
-
-// 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, notNext) {
-  if (this.type == tokType) {
-    if (this.options.onTrailingComma)
-      this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc)
-    if (!notNext)
-      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 = this.trailingComma = this.parenthesizedAssign = this.parenthesizedBind = -1
-  }
-}
-
-pp.checkPatternErrors = function(refDestructuringErrors, isAssign) {
-  if (!refDestructuringErrors) return
-  if (refDestructuringErrors.trailingComma > -1)
-    this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element")
-  let parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind
-  if (parens > -1) this.raiseRecoverable(parens, "Parenthesized pattern")
-}
-
-pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
-  let pos = refDestructuringErrors ? refDestructuringErrors.shorthandAssign : -1
-  if (!andThrow) return pos >= 0
-  if (pos > -1) this.raise(pos, "Shorthand property assignments are valid only in destructuring patterns")
-}
-
-pp.checkYieldAwaitInDefaultParams = function() {
-  if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos))
-    this.raise(this.yieldPos, "Yield expression cannot be a default value")
-  if (this.awaitPos)
-    this.raise(this.awaitPos, "Await expression cannot be a default value")
-}
-
-pp.isSimpleAssignTarget = function(expr) {
-  if (expr.type === "ParenthesizedExpression")
-    return this.isSimpleAssignTarget(expr.expression)
-  return expr.type === "Identifier" || expr.type === "MemberExpression"
-}

-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 = ""
-    if (!options.allowReserved) {
-      for (let v = options.ecmaVersion;; v--)
-        if (reserved = reservedWords[v]) break
-      if (options.sourceType == "module") reserved += " 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 = this.input.lastIndexOf("\n", startPos - 1) + 1
-      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.inModule = options.sourceType === "module"
-    this.strict = this.inModule || this.strictDirective(this.pos)
-
-    // Used to signify the start of a potential arrow function
-    this.potentialArrowAt = -1
-
-    // Flags to track whether we are in a function, a generator, an async function.
-    this.inFunction = this.inGenerator = this.inAsync = false
-    // Positions to delayed-check that yield/await does not exist in default parameters.
-    this.yieldPos = this.awaitPos = 0
-    // 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

-{
-  "_from": "acorn-globals@^3.0.0",
-  "_id": "acorn-globals@3.1.0",
-  "_inBundle": false,
-  "_integrity": "sha1-/YJw9x+7SZawBPqIDuXUZXOnMb8=",
-  "_location": "/acorn-globals",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "range",
-    "registry": true,
-    "raw": "acorn-globals@^3.0.0",
-    "name": "acorn-globals",
-    "escapedName": "acorn-globals",
-    "rawSpec": "^3.0.0",
-    "saveSpec": null,
-    "fetchSpec": "^3.0.0"
-  },
-  "_requiredBy": [
-    "/with"
-  ],
-  "_resolved": "https://registry.npmjs.org/acorn-globals/-/acorn-globals-3.1.0.tgz",
-  "_shasum": "fd8270f71fbb4996b004fa880ee5d46573a731bf",
-  "_spec": "acorn-globals@^3.0.0",
-  "_where": "/Users/suyeon/Desktop/UR_Village/node_modules/with",
-  "author": {
-    "name": "ForbesLindesay"
-  },
-  "bugs": {
-    "url": "https://github.com/ForbesLindesay/acorn-globals/issues"
-  },
-  "bundleDependencies": false,
-  "dependencies": {
-    "acorn": "^4.0.4"
-  },
-  "deprecated": false,
-  "description": "Detect global variables in JavaScript using acorn",
-  "devDependencies": {
-    "testit": "^2.0.2"
-  },
-  "files": [
-    "index.js",
-    "LICENSE"
-  ],
-  "homepage": "https://github.com/ForbesLindesay/acorn-globals#readme",
-  "keywords": [
-    "ast",
-    "variable",
-    "name",
-    "lexical",
-    "scope",
-    "local",
-    "global",
-    "implicit"
-  ],
-  "license": "MIT",
-  "name": "acorn-globals",
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/ForbesLindesay/acorn-globals.git"
-  },
-  "scripts": {
-    "test": "node test"
-  },
-  "version": "3.1.0"
-}

-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

-{
-  "_from": "acorn@^3.1.0",
-  "_id": "acorn@3.3.0",
-  "_inBundle": false,
-  "_integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
-  "_location": "/acorn",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "range",
-    "registry": true,
-    "raw": "acorn@^3.1.0",
-    "name": "acorn",
-    "escapedName": "acorn",
-    "rawSpec": "^3.1.0",
-    "saveSpec": null,
-    "fetchSpec": "^3.1.0"
-  },
-  "_requiredBy": [
-    "/with"
-  ],
-  "_resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
-  "_shasum": "45e37fb39e8da3f25baee3ff5369e2bb5f22017a",
-  "_spec": "acorn@^3.1.0",
-  "_where": "/Users/suyeon/Desktop/UR_Village/node_modules/with",
-  "bin": {
-    "acorn": "bin/acorn"
-  },
-  "bugs": {
-    "url": "https://github.com/ternjs/acorn/issues"
-  },
-  "bundleDependencies": false,
-  "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"
-    }
-  ],
-  "deprecated": false,
-  "description": "ECMAScript parser",
-  "devDependencies": {
-    "rollup": "^0.34.1",
-    "rollup-plugin-buble": "^0.11.0",
-    "unicode-9.0.0": "^0.7.0"
-  },
-  "engines": {
-    "node": ">=0.4.0"
-  },
-  "homepage": "https://github.com/ternjs/acorn",
-  "jsnext:main": "dist/acorn.es.js",
-  "license": "MIT",
-  "main": "dist/acorn.js",
-  "maintainers": [
-    {
-      "name": "Marijn Haverbeke",
-      "email": "marijnh@gmail.com",
-      "url": "http://marijnhaverbeke.nl"
-    },
-    {
-      "name": "Ingvar Stepanyan",
-      "email": "me@rreverser.com",
-      "url": "http://rreverser.com/"
-    }
-  ],
-  "name": "acorn",
-  "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]
-}