Merge branch 'master' of http://khuhub.khu.ac.kr/2017104034/Singer-Composer

+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  "$basedir/node"  "$basedir/../acorn/bin/acorn" "$@"
+  ret=$?
+else 
+  node  "$basedir/../acorn/bin/acorn" "$@"
+  ret=$?
+fi
+exit $ret

+@ECHO off
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+"%_prog%"  "%dp0%\..\acorn\bin\acorn" %*
+ENDLOCAL
+EXIT /b %errorlevel%
+:find_dp0
+SET dp0=%~dp0
+EXIT /b

+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  & "$basedir/node$exe"  "$basedir/../acorn/bin/acorn" $args
+  $ret=$LASTEXITCODE
+} else {
+  & "node$exe"  "$basedir/../acorn/bin/acorn" $args
+  $ret=$LASTEXITCODE
+}
+exit $ret

+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  "$basedir/node"  "$basedir/../escodegen/bin/escodegen.js" "$@"
+  ret=$?
+else 
+  node  "$basedir/../escodegen/bin/escodegen.js" "$@"
+  ret=$?
+fi
+exit $ret

+@ECHO off
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+"%_prog%"  "%dp0%\..\escodegen\bin\escodegen.js" %*
+ENDLOCAL
+EXIT /b %errorlevel%
+:find_dp0
+SET dp0=%~dp0
+EXIT /b

+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  & "$basedir/node$exe"  "$basedir/../escodegen/bin/escodegen.js" $args
+  $ret=$LASTEXITCODE
+} else {
+  & "node$exe"  "$basedir/../escodegen/bin/escodegen.js" $args
+  $ret=$LASTEXITCODE
+}
+exit $ret

+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  "$basedir/node"  "$basedir/../escodegen/bin/esgenerate.js" "$@"
+  ret=$?
+else 
+  node  "$basedir/../escodegen/bin/esgenerate.js" "$@"
+  ret=$?
+fi
+exit $ret

+@ECHO off
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+"%_prog%"  "%dp0%\..\escodegen\bin\esgenerate.js" %*
+ENDLOCAL
+EXIT /b %errorlevel%
+:find_dp0
+SET dp0=%~dp0
+EXIT /b

+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  & "$basedir/node$exe"  "$basedir/../escodegen/bin/esgenerate.js" $args
+  $ret=$LASTEXITCODE
+} else {
+  & "node$exe"  "$basedir/../escodegen/bin/esgenerate.js" $args
+  $ret=$LASTEXITCODE
+}
+exit $ret

+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  "$basedir/node"  "$basedir/../esprima/bin/esparse.js" "$@"
+  ret=$?
+else 
+  node  "$basedir/../esprima/bin/esparse.js" "$@"
+  ret=$?
+fi
+exit $ret

+@ECHO off
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+"%_prog%"  "%dp0%\..\esprima\bin\esparse.js" %*
+ENDLOCAL
+EXIT /b %errorlevel%
+:find_dp0
+SET dp0=%~dp0
+EXIT /b

+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  & "$basedir/node$exe"  "$basedir/../esprima/bin/esparse.js" $args
+  $ret=$LASTEXITCODE
+} else {
+  & "node$exe"  "$basedir/../esprima/bin/esparse.js" $args
+  $ret=$LASTEXITCODE
+}
+exit $ret

+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  "$basedir/node"  "$basedir/../esprima/bin/esvalidate.js" "$@"
+  ret=$?
+else 
+  node  "$basedir/../esprima/bin/esvalidate.js" "$@"
+  ret=$?
+fi
+exit $ret

+@ECHO off
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+"%_prog%"  "%dp0%\..\esprima\bin\esvalidate.js" %*
+ENDLOCAL
+EXIT /b %errorlevel%
+:find_dp0
+SET dp0=%~dp0
+EXIT /b

+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  & "$basedir/node$exe"  "$basedir/../esprima/bin/esvalidate.js" $args
+  $ret=$LASTEXITCODE
+} else {
+  & "node$exe"  "$basedir/../esprima/bin/esvalidate.js" $args
+  $ret=$LASTEXITCODE
+}
+exit $ret

+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  "$basedir/node"  "$basedir/../sshpk/bin/sshpk-conv" "$@"
+  ret=$?
+else 
+  node  "$basedir/../sshpk/bin/sshpk-conv" "$@"
+  ret=$?
+fi
+exit $ret

+@ECHO off
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+"%_prog%"  "%dp0%\..\sshpk\bin\sshpk-conv" %*
+ENDLOCAL
+EXIT /b %errorlevel%
+:find_dp0
+SET dp0=%~dp0
+EXIT /b

+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  & "$basedir/node$exe"  "$basedir/../sshpk/bin/sshpk-conv" $args
+  $ret=$LASTEXITCODE
+} else {
+  & "node$exe"  "$basedir/../sshpk/bin/sshpk-conv" $args
+  $ret=$LASTEXITCODE
+}
+exit $ret

+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  "$basedir/node"  "$basedir/../sshpk/bin/sshpk-sign" "$@"
+  ret=$?
+else 
+  node  "$basedir/../sshpk/bin/sshpk-sign" "$@"
+  ret=$?
+fi
+exit $ret

+@ECHO off
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+"%_prog%"  "%dp0%\..\sshpk\bin\sshpk-sign" %*
+ENDLOCAL
+EXIT /b %errorlevel%
+:find_dp0
+SET dp0=%~dp0
+EXIT /b

+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  & "$basedir/node$exe"  "$basedir/../sshpk/bin/sshpk-sign" $args
+  $ret=$LASTEXITCODE
+} else {
+  & "node$exe"  "$basedir/../sshpk/bin/sshpk-sign" $args
+  $ret=$LASTEXITCODE
+}
+exit $ret

+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  "$basedir/node"  "$basedir/../sshpk/bin/sshpk-verify" "$@"
+  ret=$?
+else 
+  node  "$basedir/../sshpk/bin/sshpk-verify" "$@"
+  ret=$?
+fi
+exit $ret

+@ECHO off
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+"%_prog%"  "%dp0%\..\sshpk\bin\sshpk-verify" %*
+ENDLOCAL
+EXIT /b %errorlevel%
+:find_dp0
+SET dp0=%~dp0
+EXIT /b

+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  & "$basedir/node$exe"  "$basedir/../sshpk/bin/sshpk-verify" $args
+  $ret=$LASTEXITCODE
+} else {
+  & "node$exe"  "$basedir/../sshpk/bin/sshpk-verify" $args
+  $ret=$LASTEXITCODE
+}
+exit $ret

+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  "$basedir/node"  "$basedir/../uuid/bin/uuid" "$@"
+  ret=$?
+else 
+  node  "$basedir/../uuid/bin/uuid" "$@"
+  ret=$?
+fi
+exit $ret

+@ECHO off
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+"%_prog%"  "%dp0%\..\uuid\bin\uuid" %*
+ENDLOCAL
+EXIT /b %errorlevel%
+:find_dp0
+SET dp0=%~dp0
+EXIT /b

+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  & "$basedir/node$exe"  "$basedir/../uuid/bin/uuid" $args
+  $ret=$LASTEXITCODE
+} else {
+  & "node$exe"  "$basedir/../uuid/bin/uuid" $args
+  $ret=$LASTEXITCODE
+}
+exit $ret

+## 2.0.5
+
+-   Use a lookup string in atobLookup and btoaLookup (@GiovanniFrigo in #38)
+-   Dependency updates
+
+## 2.0.4
+
+-   Dependency updates
+
+## 2.0.3
+
+-   Use standard wording for BSD-3-Clause license (@PhilippWendler)
+
+## 2.0.2
+
+-   Correct license in `package.json` (@Haegin)
+
+## 2.0.1
+
+-   Add TypeScript type definitions, thanks to @LinusU
+
+## 2.0.0
+
+Modernization updates thanks to @TimothyGu:
+
+-   Use jsdom's eslint config, remove jscs
+-   Move syntax to ES6
+-   Remove Babel
+-   Via: https://github.com/jsdom/abab/pull/26
+
+## 1.0.4
+
+-   Added license file
+
+## 1.0.3
+
+-   Replaced `let` with `var` in `lib/btoa.js`
+    -   Follow up from `1.0.2`
+    -   Resolves https://github.com/jsdom/abab/issues/18
+
+## 1.0.2
+
+-   Replaced `const` with `var` in `index.js`
+    -   Allows use of `abab` in the browser without a transpilation step
+    -   Resolves https://github.com/jsdom/abab/issues/15

+Copyright © 2019 W3C and Jeff Carpenter \<jeffcarp@chromium.org\>
+
+Both the original source code and new contributions in this repository are released under the [3-Clause BSD license](https://opensource.org/licenses/BSD-3-Clause).
+
+# The 3-Clause BSD License
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+# abab [![npm version](https://badge.fury.io/js/abab.svg)](https://www.npmjs.com/package/abab) [![Build Status](https://travis-ci.org/jsdom/abab.svg?branch=master)](https://travis-ci.org/jsdom/abab)
+
+A JavaScript module that implements `window.atob` and `window.btoa` according the forgiving-base64 algorithm in the [Infra Standard](https://infra.spec.whatwg.org/#forgiving-base64). The original code was forked from [w3c/web-platform-tests](https://github.com/w3c/web-platform-tests/blob/master/html/webappapis/atob/base64.html).
+
+Compatibility: Node.js version 3+ and all major browsers.
+
+Install with `npm`:
+
+```sh
+npm install abab
+```
+
+## API
+
+### `btoa` (base64 encode)
+
+```js
+const { btoa } = require('abab');
+btoa('Hello, world!'); // 'SGVsbG8sIHdvcmxkIQ=='
+```
+
+### `atob` (base64 decode)
+
+```js 
+const { atob } = require('abab');
+atob('SGVsbG8sIHdvcmxkIQ=='); // 'Hello, world!'
+```
+
+#### Valid characters
+
+[Per the spec](https://html.spec.whatwg.org/multipage/webappapis.html#atob:dom-windowbase64-btoa-3), `btoa` will accept strings "containing only characters in the range `U+0000` to `U+00FF`." If passed a string with characters above `U+00FF`, `btoa` will return `null`. If `atob` is passed a string that is not base64-valid, it will also return `null`. In both cases when `null` is returned, the spec calls for throwing a `DOMException` of type `InvalidCharacterError`.
+
+## Browsers
+
+If you want to include just one of the methods to save bytes in your client-side code, you can `require` the desired module directly.
+
+```js
+const atob = require('abab/lib/atob');
+const btoa = require('abab/lib/btoa');
+```
+
+## Development
+
+If you're **submitting a PR** or **deploying to npm**, please use the [checklists in CONTRIBUTING.md](CONTRIBUTING.md#checklists).
+
+## Remembering what `atob` and `btoa` stand for
+
+Base64 comes from IETF [RFC 4648](https://tools.ietf.org/html/rfc4648#section-4) (2006). 
+
+- **`btoa`**, the encoder function, stands for **binary** to **ASCII**, meaning it converts any binary input into a subset of **ASCII** (Base64).
+- **`atob`**, the decoder function, converts **ASCII** (or Base64) to its original **binary** format. 

+export function atob(encodedData: string): string | null
+export function btoa(stringToEncode: string): string | null

+"use strict";
+
+const atob = require("./lib/atob");
+const btoa = require("./lib/btoa");
+
+module.exports = {
+  atob,
+  btoa
+};

+"use strict";
+
+/**
+ * Implementation of atob() according to the HTML and Infra specs, except that
+ * instead of throwing INVALID_CHARACTER_ERR we return null.
+ */
+function atob(data) {
+  // Web IDL requires DOMStrings to just be converted using ECMAScript
+  // ToString, which in our case amounts to using a template literal.
+  data = `${data}`;
+  // "Remove all ASCII whitespace from data."
+  data = data.replace(/[ \t\n\f\r]/g, "");
+  // "If data's length divides by 4 leaving no remainder, then: if data ends
+  // with one or two U+003D (=) code points, then remove them from data."
+  if (data.length % 4 === 0) {
+    data = data.replace(/==?$/, "");
+  }
+  // "If data's length divides by 4 leaving a remainder of 1, then return
+  // failure."
+  //
+  // "If data contains a code point that is not one of
+  //
+  // U+002B (+)
+  // U+002F (/)
+  // ASCII alphanumeric
+  //
+  // then return failure."
+  if (data.length % 4 === 1 || /[^+/0-9A-Za-z]/.test(data)) {
+    return null;
+  }
+  // "Let output be an empty byte sequence."
+  let output = "";
+  // "Let buffer be an empty buffer that can have bits appended to it."
+  //
+  // We append bits via left-shift and or.  accumulatedBits is used to track
+  // when we've gotten to 24 bits.
+  let buffer = 0;
+  let accumulatedBits = 0;
+  // "Let position be a position variable for data, initially pointing at the
+  // start of data."
+  //
+  // "While position does not point past the end of data:"
+  for (let i = 0; i < data.length; i++) {
+    // "Find the code point pointed to by position in the second column of
+    // Table 1: The Base 64 Alphabet of RFC 4648. Let n be the number given in
+    // the first cell of the same row.
+    //
+    // "Append to buffer the six bits corresponding to n, most significant bit
+    // first."
+    //
+    // atobLookup() implements the table from RFC 4648.
+    buffer <<= 6;
+    buffer |= atobLookup(data[i]);
+    accumulatedBits += 6;
+    // "If buffer has accumulated 24 bits, interpret them as three 8-bit
+    // big-endian numbers. Append three bytes with values equal to those
+    // numbers to output, in the same order, and then empty buffer."
+    if (accumulatedBits === 24) {
+      output += String.fromCharCode((buffer & 0xff0000) >> 16);
+      output += String.fromCharCode((buffer & 0xff00) >> 8);
+      output += String.fromCharCode(buffer & 0xff);
+      buffer = accumulatedBits = 0;
+    }
+    // "Advance position by 1."
+  }
+  // "If buffer is not empty, it contains either 12 or 18 bits. If it contains
+  // 12 bits, then discard the last four and interpret the remaining eight as
+  // an 8-bit big-endian number. If it contains 18 bits, then discard the last
+  // two and interpret the remaining 16 as two 8-bit big-endian numbers. Append
+  // the one or two bytes with values equal to those one or two numbers to
+  // output, in the same order."
+  if (accumulatedBits === 12) {
+    buffer >>= 4;
+    output += String.fromCharCode(buffer);
+  } else if (accumulatedBits === 18) {
+    buffer >>= 2;
+    output += String.fromCharCode((buffer & 0xff00) >> 8);
+    output += String.fromCharCode(buffer & 0xff);
+  }
+  // "Return output."
+  return output;
+}
+/**
+ * A lookup table for atob(), which converts an ASCII character to the
+ * corresponding six-bit number.
+ */
+
+const keystr =
+  "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+function atobLookup(chr) {
+  const index = keystr.indexOf(chr);
+  // Throw exception if character is not in the lookup string; should not be hit in tests
+  return index < 0 ? undefined : index;
+}
+
+module.exports = atob;

+"use strict";
+
+/**
+ * btoa() as defined by the HTML and Infra specs, which mostly just references
+ * RFC 4648.
+ */
+function btoa(s) {
+  let i;
+  // String conversion as required by Web IDL.
+  s = `${s}`;
+  // "The btoa() method must throw an "InvalidCharacterError" DOMException if
+  // data contains any character whose code point is greater than U+00FF."
+  for (i = 0; i < s.length; i++) {
+    if (s.charCodeAt(i) > 255) {
+      return null;
+    }
+  }
+  let out = "";
+  for (i = 0; i < s.length; i += 3) {
+    const groupsOfSix = [undefined, undefined, undefined, undefined];
+    groupsOfSix[0] = s.charCodeAt(i) >> 2;
+    groupsOfSix[1] = (s.charCodeAt(i) & 0x03) << 4;
+    if (s.length > i + 1) {
+      groupsOfSix[1] |= s.charCodeAt(i + 1) >> 4;
+      groupsOfSix[2] = (s.charCodeAt(i + 1) & 0x0f) << 2;
+    }
+    if (s.length > i + 2) {
+      groupsOfSix[2] |= s.charCodeAt(i + 2) >> 6;
+      groupsOfSix[3] = s.charCodeAt(i + 2) & 0x3f;
+    }
+    for (let j = 0; j < groupsOfSix.length; j++) {
+      if (typeof groupsOfSix[j] === "undefined") {
+        out += "=";
+      } else {
+        out += btoaLookup(groupsOfSix[j]);
+      }
+    }
+  }
+  return out;
+}
+
+/**
+ * Lookup table for btoa(), which converts a six-bit number into the
+ * corresponding ASCII character.
+ */
+const keystr =
+  "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+function btoaLookup(index) {
+  if (index >= 0 && index < 64) {
+    return keystr[index];
+  }
+
+  // Throw INVALID_CHARACTER_ERR exception here -- won't be hit in the tests.
+  return undefined;
+}
+
+module.exports = btoa;

+{
+  "_from": "abab@^2.0.0",
+  "_id": "abab@2.0.5",
+  "_inBundle": false,
+  "_integrity": "sha512-9IK9EadsbHo6jLWIpxpR6pL0sazTXV6+SQv25ZB+F7Bj9mJNaOc4nCRabwd5M/JwmUa8idz6Eci6eKfJryPs6Q==",
+  "_location": "/abab",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "abab@^2.0.0",
+    "name": "abab",
+    "escapedName": "abab",
+    "rawSpec": "^2.0.0",
+    "saveSpec": null,
+    "fetchSpec": "^2.0.0"
+  },
+  "_requiredBy": [
+    "/data-urls",
+    "/jsdom"
+  ],
+  "_resolved": "https://registry.npmjs.org/abab/-/abab-2.0.5.tgz",
+  "_shasum": "c0b678fb32d60fc1219c784d6a826fe385aeb79a",
+  "_spec": "abab@^2.0.0",
+  "_where": "C:\\Users\\KoMoGoon\\Desktop\\oss_project\\Singer-Composer\\node_modules\\jsdom",
+  "author": {
+    "name": "Jeff Carpenter",
+    "email": "gcarpenterv@gmail.com"
+  },
+  "bugs": {
+    "url": "https://github.com/jsdom/abab/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "WHATWG spec-compliant implementations of window.atob and window.btoa.",
+  "devDependencies": {
+    "eslint": "^4.19.1",
+    "karma": "^2.0.0",
+    "karma-cli": "^1.0.1",
+    "karma-firefox-launcher": "^1.1.0",
+    "karma-mocha": "^1.3.0",
+    "karma-webpack": "^3.0.0",
+    "mocha": "^5.1.0",
+    "webpack": "^4.5.0"
+  },
+  "files": [
+    "index.d.ts",
+    "index.js",
+    "lib/"
+  ],
+  "homepage": "https://github.com/jsdom/abab#readme",
+  "keywords": [
+    "atob",
+    "btoa",
+    "browser"
+  ],
+  "license": "BSD-3-Clause",
+  "main": "index.js",
+  "name": "abab",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/jsdom/abab.git"
+  },
+  "scripts": {
+    "karma": "karma start",
+    "lint": "eslint .",
+    "mocha": "mocha test/node",
+    "test": "npm run lint && npm run mocha && npm run karma"
+  },
+  "version": "2.0.5"
+}

+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
+
+[Get supported acorn-globals with the Tidelift Subscription](https://tidelift.com/subscription/pkg/npm-acorn_globals?utm_source=npm-acorn-globals&utm_medium=referral&utm_campaign=readme)
+
+[![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] ] } ]
+```
+
+## Security contact information
+
+To report a security vulnerability, please use the [Tidelift security contact](https://tidelift.com/security). Tidelift will coordinate the fix and disclosure.
+
+## License
+
+  MIT

+'use strict';
+
+var acorn = require('acorn');
+var walk = require('acorn-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, options) {
+  var parseOptions = Object.assign({}, options,
+    {
+      allowReturnOutsideFunction: true,
+      allowImportExportEverywhere: true,
+      allowHashBang: true
+    }
+  );
+  return acorn.parse(source, parseOptions);
+}
+module.exports = findGlobals;
+module.exports.parse = reallyParse;
+function findGlobals(source, options) {
+  options = options || {};
+  var globals = [];
+  var ast;
+  // istanbul ignore else
+  if (typeof source === 'string') {
+    ast = reallyParse(source, options);
+  } 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 || Object.create(null);
+    node.params.forEach(function (node) {
+      declarePattern(node, fn);
+    });
+    if (node.id) {
+      fn.locals[node.id.name] = true;
+    }
+  };
+  var declareClass = function (node) {
+    node.locals = node.locals || Object.create(null);
+    if (node.id) {
+      node.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 || node.argument, 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 || Object.create(null);
+    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 || Object.create(null);
+      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 || Object.create(null);
+      if (node.id) {
+        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 (isBlockScope(parents[i])) {
+          parent = parents[i];
+        }
+      }
+      parent.locals = parent.locals || Object.create(null);
+      if (node.id) {
+        parent.locals[node.id.name] = true;
+      }
+      declareClass(node);
+    },
+    'Class': declareClass,
+    'TryStatement': function (node) {
+      if (node.handler === null) return;
+      node.handler.locals = node.handler.locals || Object.create(null);
+      declarePattern(node.handler.param, node.handler);
+    },
+    '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.slice();
+    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.slice();
+      globals.push(node);
+    }
+  });
+  var groupedGlobals = Object.create(null);
+  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]};
+  });
+}

+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  "$basedir/node"  "$basedir/../acorn/bin/acorn" "$@"
+  ret=$?
+else 
+  node  "$basedir/../acorn/bin/acorn" "$@"
+  ret=$?
+fi
+exit $ret

+@ECHO off
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+"%_prog%"  "%dp0%\..\acorn\bin\acorn" %*
+ENDLOCAL
+EXIT /b %errorlevel%
+:find_dp0
+SET dp0=%~dp0
+EXIT /b

+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  & "$basedir/node$exe"  "$basedir/../acorn/bin/acorn" $args
+  $ret=$LASTEXITCODE
+} else {
+  & "node$exe"  "$basedir/../acorn/bin/acorn" $args
+  $ret=$LASTEXITCODE
+}
+exit $ret

-Copyright (c) 2012 Felix Geisendörfer (felix@debuggable.com) and contributors
+Copyright (C) 2012-2018 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:
+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 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.
+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';
+
+require('../dist/bin.js');

+export as namespace acorn
+export = acorn
+
+declare namespace acorn {
+  function parse(input: string, options?: Options): Node
+
+  function parseExpressionAt(input: string, pos?: number, options?: Options): Node
+
+  function tokenizer(input: string, options?: Options): {
+    getToken(): Token
+    [Symbol.iterator](): Iterator<Token>
+  }
+
+  interface Options {
+    ecmaVersion?: 3 | 5 | 6 | 7 | 8 | 9 | 10 | 2015 | 2016 | 2017 | 2018 | 2019
+    sourceType?: 'script' | 'module'
+    onInsertedSemicolon?: (lastTokEnd: number, lastTokEndLoc?: Position) => void
+    onTrailingComma?: (lastTokEnd: number, lastTokEndLoc?: Position) => void
+    allowReserved?: boolean | 'never'
+    allowReturnOutsideFunction?: boolean
+    allowImportExportEverywhere?: boolean
+    allowAwaitOutsideFunction?: boolean
+    allowHashBang?: boolean
+    locations?: boolean
+    onToken?: ((token: Token) => any) | Token[]
+    onComment?: ((
+      isBlock: boolean, text: string, start: number, end: number, startLoc?: Position,
+      endLoc?: Position
+    ) => void) | Comment[]
+    ranges?: boolean
+    program?: Node
+    sourceFile?: string
+    directSourceFile?: string
+    preserveParens?: boolean
+  }
+
+  class Parser {
+    constructor(options: Options, input: string, startPos?: number)
+    parse(this: Parser): Node
+    static parse(this: typeof Parser, input: string, options?: Options): Node
+    static parseExpressionAt(this: typeof Parser, input: string, pos: number, options?: Options): Node
+    static tokenizer(this: typeof Parser, input: string, options?: Options): {
+      getToken(): Token
+      [Symbol.iterator](): Iterator<Token>
+    }
+    static extend(this: typeof Parser, ...plugins: ((BaseParser: typeof Parser) => typeof Parser)[]): typeof Parser
+  }
+
+  interface Position { line: number; column: number; offset: number }
+
+  const defaultOptions: Options
+
+  function getLineInfo(input: string, offset: number): Position
+
+  class SourceLocation {
+    start: Position
+    end: Position
+    source?: string | null
+    constructor(p: Parser, start: Position, end: Position)
+  }
+
+  class Node {
+    type: string
+    start: number
+    end: number
+    loc?: SourceLocation
+    sourceFile?: string
+    range?: [number, number]
+    constructor(parser: Parser, pos: number, loc?: SourceLocation)
+  }
+
+  class TokenType {
+    label: string
+    keyword: string
+    beforeExpr: boolean
+    startsExpr: boolean
+    isLoop: boolean
+    isAssign: boolean
+    prefix: boolean
+    postfix: boolean
+    binop: number
+    updateContext?: (prevType: TokenType) => void
+    constructor(label: string, conf?: any)
+  }
+
+  const tokTypes: {
+    num: TokenType
+    regexp: TokenType
+    string: TokenType
+    name: TokenType
+    eof: TokenType
+    bracketL: TokenType
+    bracketR: TokenType
+    braceL: TokenType
+    braceR: TokenType
+    parenL: TokenType
+    parenR: TokenType
+    comma: TokenType
+    semi: TokenType
+    colon: TokenType
+    dot: TokenType
+    question: TokenType
+    arrow: TokenType
+    template: TokenType
+    ellipsis: TokenType
+    backQuote: TokenType
+    dollarBraceL: TokenType
+    eq: TokenType
+    assign: TokenType
+    incDec: TokenType
+    prefix: TokenType
+    logicalOR: TokenType
+    logicalAND: TokenType
+    bitwiseOR: TokenType
+    bitwiseXOR: TokenType
+    bitwiseAND: TokenType
+    equality: TokenType
+    relational: TokenType
+    bitShift: TokenType
+    plusMin: TokenType
+    modulo: TokenType
+    star: TokenType
+    slash: TokenType
+    starstar: TokenType
+    _break: TokenType
+    _case: TokenType
+    _catch: TokenType
+    _continue: TokenType
+    _debugger: TokenType
+    _default: TokenType
+    _do: TokenType
+    _else: TokenType
+    _finally: TokenType
+    _for: TokenType
+    _function: TokenType
+    _if: TokenType
+    _return: TokenType
+    _switch: TokenType
+    _throw: TokenType
+    _try: TokenType
+    _var: TokenType
+    _const: TokenType
+    _while: TokenType
+    _with: TokenType
+    _new: TokenType
+    _this: TokenType
+    _super: TokenType
+    _class: TokenType
+    _extends: TokenType
+    _export: TokenType
+    _import: TokenType
+    _null: TokenType
+    _true: TokenType
+    _false: TokenType
+    _in: TokenType
+    _instanceof: TokenType
+    _typeof: TokenType
+    _void: TokenType
+    _delete: TokenType
+  }
+
+  class TokContext {
+    constructor(token: string, isExpr: boolean, preserveSpace: boolean, override?: (p: Parser) => void)
+  }
+
+  const tokContexts: {
+    b_stat: TokContext
+    b_expr: TokContext
+    b_tmpl: TokContext
+    p_stat: TokContext
+    p_expr: TokContext
+    q_tmpl: TokContext
+    f_expr: TokContext
+  }
+
+  function isIdentifierStart(code: number, astral?: boolean): boolean
+
+  function isIdentifierChar(code: number, astral?: boolean): boolean
+
+  interface AbstractToken {
+  }
+
+  interface Comment extends AbstractToken {
+    type: string
+    value: string
+    start: number
+    end: number
+    loc?: SourceLocation
+    range?: [number, number]
+  }
+
+  class Token {
+    type: TokenType
+    value: any
+    start: number
+    end: number
+    loc?: SourceLocation
+    range?: [number, number]
+    constructor(p: Parser)
+  }
+
+  function isNewLine(code: number): boolean
+
+  const lineBreak: RegExp
+
+  const lineBreakG: RegExp
+
+  const version: string
+}

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

+{
+  "_from": "acorn@^6.0.1",
+  "_id": "acorn@6.4.2",
+  "_inBundle": false,
+  "_integrity": "sha512-XtGIhXwF8YM8bJhGxG5kXgjkEuNGLTkoYqVE+KMR+aspr4KGYmKYg7yUe3KghyQ9yheNwLnjmzh/7+gfDBmHCQ==",
+  "_location": "/acorn-globals/acorn",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "acorn@^6.0.1",
+    "name": "acorn",
+    "escapedName": "acorn",
+    "rawSpec": "^6.0.1",
+    "saveSpec": null,
+    "fetchSpec": "^6.0.1"
+  },
+  "_requiredBy": [
+    "/acorn-globals"
+  ],
+  "_resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.2.tgz",
+  "_shasum": "35866fd710528e92de10cf06016498e47e39e1e6",
+  "_spec": "acorn@^6.0.1",
+  "_where": "C:\\Users\\KoMoGoon\\Desktop\\oss_project\\Singer-Composer\\node_modules\\acorn-globals",
+  "bin": {
+    "acorn": "bin/acorn"
+  },
+  "bugs": {
+    "url": "https://github.com/acornjs/acorn/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "ECMAScript parser",
+  "engines": {
+    "node": ">=0.4.0"
+  },
+  "homepage": "https://github.com/acornjs/acorn",
+  "license": "MIT",
+  "main": "dist/acorn.js",
+  "maintainers": [
+    {
+      "name": "Marijn Haverbeke",
+      "email": "marijnh@gmail.com",
+      "url": "https://marijnhaverbeke.nl"
+    },
+    {
+      "name": "Ingvar Stepanyan",
+      "email": "me@rreverser.com",
+      "url": "https://rreverser.com/"
+    },
+    {
+      "name": "Adrian Heine",
+      "url": "http://adrianheine.de"
+    }
+  ],
+  "module": "dist/acorn.mjs",
+  "name": "acorn",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/acornjs/acorn.git"
+  },
+  "scripts": {
+    "prepare": "cd ..; npm run build:main && npm run build:bin"
+  },
+  "version": "6.4.2"
+}

+{
+  "_from": "acorn-globals@^4.1.0",
+  "_id": "acorn-globals@4.3.4",
+  "_inBundle": false,
+  "_integrity": "sha512-clfQEh21R+D0leSbUdWf3OcfqyaCSAQ8Ryq00bofSekfr9W8u1jyYZo6ir0xu9Gtcf7BjcHJpnbZH7JOCpP60A==",
+  "_location": "/acorn-globals",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "acorn-globals@^4.1.0",
+    "name": "acorn-globals",
+    "escapedName": "acorn-globals",
+    "rawSpec": "^4.1.0",
+    "saveSpec": null,
+    "fetchSpec": "^4.1.0"
+  },
+  "_requiredBy": [
+    "/jsdom"
+  ],
+  "_resolved": "https://registry.npmjs.org/acorn-globals/-/acorn-globals-4.3.4.tgz",
+  "_shasum": "9fa1926addc11c97308c4e66d7add0d40c3272e7",
+  "_spec": "acorn-globals@^4.1.0",
+  "_where": "C:\\Users\\KoMoGoon\\Desktop\\oss_project\\Singer-Composer\\node_modules\\jsdom",
+  "author": {
+    "name": "ForbesLindesay"
+  },
+  "bugs": {
+    "url": "https://github.com/ForbesLindesay/acorn-globals/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "acorn": "^6.0.1",
+    "acorn-walk": "^6.0.1"
+  },
+  "deprecated": false,
+  "description": "Detect global variables in JavaScript using acorn",
+  "devDependencies": {
+    "testit": "^3.0.0"
+  },
+  "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": "4.3.4"
+}

+## 6.2.0 (2017-07-04)
+
+### New features
+
+Add support for `Import` nodes.
+
+## 6.1.0 (2018-09-28)
+
+### New features
+
+The walker now walks `TemplateElement` nodes.
+
+## 6.0.1 (2018-09-14)
+
+### Bug fixes
+
+Fix bad "main" field in package.json.
+
+## 6.0.0 (2018-09-14)
+
+### Breaking changes
+
+This is now a separate package, `acorn-walk`, rather than part of the main `acorn` package.
+
+The `ScopeBody` and `ScopeExpression` meta-node-types are no longer supported.
+
+## 5.7.1 (2018-06-15)
+
+### Bug fixes
+
+Make sure the walker and bin files are rebuilt on release (the previous release didn't get the up-to-date versions).
+
+## 5.7.0 (2018-06-15)
+
+### Bug fixes
+
+Fix crash in walker when walking a binding-less catch node.
+
+## 5.6.2 (2018-06-05)
+
+### Bug fixes
+
+In the walker, go back to allowing the `baseVisitor` argument to be null to default to the default base everywhere.
+
+## 5.6.1 (2018-06-01)
+
+### Bug fixes
+
+Fix regression when passing `null` as fourth argument to `walk.recursive`.
+
+## 5.6.0 (2018-05-31)
+
+### Bug fixes
+
+Fix a bug in the walker that caused a crash when walking an object pattern spread.
+
+## 5.5.1 (2018-03-06)
+
+### Bug fixes
+
+Fix regression in walker causing property values in object patterns to be walked as expressions.
+
+## 5.5.0 (2018-02-27)
+
+### Bug fixes
+
+Support object spread in the AST walker.
+
+## 5.4.1 (2018-02-02)
+
+### Bug fixes
+
+5.4.0 somehow accidentally included an old version of walk.js.
+
+## 5.2.0 (2017-10-30)
+
+### Bug fixes
+
+The `full` and `fullAncestor` walkers no longer visit nodes multiple times.
+
+## 5.1.0 (2017-07-05)
+
+### New features
+
+New walker functions `full` and `fullAncestor`.
+
+## 3.2.0 (2016-06-07)
+
+### New features
+
+Make it possible to use `visit.ancestor` with a walk state.
+
+## 3.1.0 (2016-04-18)
+
+### New features
+
+The walker now allows defining handlers for `CatchClause` nodes.
+
+## 2.5.2 (2015-10-27)
+
+### Fixes
+
+Fix bug where the walker walked an exported `let` statement as an expression.

+Copyright (C) 2012-2018 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.

+# Acorn AST walker
+
+An abstract syntax tree walker for the
+[ESTree](https://github.com/estree/estree) format.
+
+## Community
+
+Acorn is open source software released under an
+[MIT license](https://github.com/acornjs/acorn/blob/master/acorn-walk/LICENSE).
+
+You are welcome to
+[report bugs](https://github.com/acornjs/acorn/issues) or create pull
+requests on [github](https://github.com/acornjs/acorn). For questions
+and discussion, please use the
+[Tern discussion forum](https://discuss.ternjs.net).
+
+## Installation
+
+The easiest way to install acorn is from [`npm`](https://www.npmjs.com/):
+
+```sh
+npm install acorn-walk
+```
+
+Alternately, you can download the source and build acorn yourself:
+
+```sh
+git clone https://github.com/acornjs/acorn.git
+cd acorn
+npm install
+```
+
+## Interface
+
+An algorithm for recursing through a syntax tree is stored as an
+object, with a property for each tree node type holding a function
+that will recurse through such a node. There are several ways to run
+such a walker.
+
+**simple**`(node, visitors, base, state)` does a 'simple' walk over a
+tree. `node` should be the AST node to walk, and `visitors` an object
+with properties whose names correspond to node types in the [ESTree
+spec](https://github.com/estree/estree). The properties should contain
+functions that will be called with the node object and, if applicable
+the state at that point. The last two arguments are optional. `base`
+is a walker algorithm, and `state` is a start state. The default
+walker will simply visit all statements and expressions and not
+produce a meaningful state. (An example of a use of state is to track
+scope at each point in the tree.)
+
+```js
+const acorn = require("acorn")
+const walk = require("acorn-walk")
+
+walk.simple(acorn.parse("let x = 10"), {
+  Literal(node) {
+    console.log(`Found a literal: ${node.value}`)
+  }
+})
+```
+
+**ancestor**`(node, visitors, base, state)` does a 'simple' walk over
+a tree, building up an array of ancestor nodes (including the current node)
+and passing the array to the callbacks as a third parameter.
+
+```js
+const acorn = require("acorn")
+const walk = require("acorn-walk")
+
+walk.ancestor(acorn.parse("foo('hi')"), {
+  Literal(_, ancestors) {
+    console.log("This literal's ancestors are:", ancestors.map(n => n.type))
+  }
+})
+```
+
+**recursive**`(node, state, functions, base)` does a 'recursive'
+walk, where the walker functions are responsible for continuing the
+walk on the child nodes of their target node. `state` is the start
+state, and `functions` should contain an object that maps node types
+to walker functions. Such functions are called with `(node, state, c)`
+arguments, and can cause the walk to continue on a sub-node by calling
+the `c` argument on it with `(node, state)` arguments. The optional
+`base` argument provides the fallback walker functions for node types
+that aren't handled in the `functions` object. If not given, the
+default walkers will be used.
+
+**make**`(functions, base)` builds a new walker object by using the
+walker functions in `functions` and filling in the missing ones by
+taking defaults from `base`.
+
+**full**`(node, callback, base, state)` does a 'full' walk over a
+tree, calling the callback with the arguments (node, state, type) for
+each node
+
+**fullAncestor**`(node, callback, base, state)` does a 'full' walk
+over a tree, building up an array of ancestor nodes (including the
+current node) and passing the array to the callbacks as a third
+parameter.
+
+```js
+const acorn = require("acorn")
+const walk = require("acorn-walk")
+
+walk.full(acorn.parse("1 + 1"), node => {
+  console.log(`There's a ${node.type} node at ${node.ch}`)
+})
+```
+
+**findNodeAt**`(node, start, end, test, base, state)` tries to locate
+a node in a tree at the given start and/or end offsets, which
+satisfies the predicate `test`. `start` and `end` can be either `null`
+(as wildcard) or a number. `test` may be a string (indicating a node
+type) or a function that takes `(nodeType, node)` arguments and
+returns a boolean indicating whether this node is interesting. `base`
+and `state` are optional, and can be used to specify a custom walker.
+Nodes are tested from inner to outer, so if two nodes match the
+boundaries, the inner one will be preferred.
+
+**findNodeAround**`(node, pos, test, base, state)` is a lot like
+`findNodeAt`, but will match any node that exists 'around' (spanning)
+the given position.
+
+**findNodeAfter**`(node, pos, test, base, state)` is similar to
+`findNodeAround`, but will match all nodes *after* the given position
+(testing outer nodes before inner nodes).

+{
+  "_from": "acorn-walk@^6.0.1",
+  "_id": "acorn-walk@6.2.0",
+  "_inBundle": false,
+  "_integrity": "sha512-7evsyfH1cLOCdAzZAd43Cic04yKydNx0cF+7tiA19p1XnLLPU4dpCQOqpjqwokFe//vS0QqfqqjCS2JkiIs0cA==",
+  "_location": "/acorn-walk",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "acorn-walk@^6.0.1",
+    "name": "acorn-walk",
+    "escapedName": "acorn-walk",
+    "rawSpec": "^6.0.1",
+    "saveSpec": null,
+    "fetchSpec": "^6.0.1"
+  },
+  "_requiredBy": [
+    "/acorn-globals"
+  ],
+  "_resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-6.2.0.tgz",
+  "_shasum": "123cb8f3b84c2171f1f7fb252615b1c78a6b1a8c",
+  "_spec": "acorn-walk@^6.0.1",
+  "_where": "C:\\Users\\KoMoGoon\\Desktop\\oss_project\\Singer-Composer\\node_modules\\acorn-globals",
+  "bugs": {
+    "url": "https://github.com/acornjs/acorn/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "ECMAScript (ESTree) AST walker",
+  "engines": {
+    "node": ">=0.4.0"
+  },
+  "homepage": "https://github.com/acornjs/acorn",
+  "license": "MIT",
+  "main": "dist/walk.js",
+  "maintainers": [
+    {
+      "name": "Marijn Haverbeke",
+      "email": "marijnh@gmail.com",
+      "url": "https://marijnhaverbeke.nl"
+    },
+    {
+      "name": "Ingvar Stepanyan",
+      "email": "me@rreverser.com",
+      "url": "https://rreverser.com/"
+    },
+    {
+      "name": "Adrian Heine",
+      "url": "http://adrianheine.de"
+    }
+  ],
+  "module": "dist/walk.mjs",
+  "name": "acorn-walk",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/acornjs/acorn.git"
+  },
+  "scripts": {
+    "prepare": "cd ..; npm run build:walk"
+  },
+  "version": "6.2.0"
+}

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

+Copyright (C) 2012-2018 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.

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

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

+#!/usr/bin/env node
+'use strict';
+
+require('./_acorn.js');

+const fs = require("fs")
+const path = require("path")
+const run = require("test262-parser-runner")
+const parse = require("..").parse
+
+const unsupportedFeatures = [
+  "BigInt",
+  "class-fields",
+  "class-fields-private",
+  "class-fields-public",
+  "numeric-separator-literal"
+];
+
+run(
+  (content, {sourceType}) => parse(content, {sourceType, ecmaVersion: 10}),
+  {
+    testsDirectory: path.dirname(require.resolve("test262/package.json")),
+    skip: test => (test.attrs.features && unsupportedFeatures.some(f => test.attrs.features.includes(f))),
+    whitelist: fs.readFileSync("./bin/test262.whitelist", "utf8").split("\n").filter(v => v)
+  }
+)

+{
+  "_from": "acorn@^5.5.3",
+  "_id": "acorn@5.7.4",
+  "_inBundle": false,
+  "_integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==",
+  "_location": "/acorn",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "acorn@^5.5.3",
+    "name": "acorn",
+    "escapedName": "acorn",
+    "rawSpec": "^5.5.3",
+    "saveSpec": null,
+    "fetchSpec": "^5.5.3"
+  },
+  "_requiredBy": [
+    "/jsdom"
+  ],
+  "_resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+  "_shasum": "3e8d8a9947d0599a1796d10225d7432f4a4acf5e",
+  "_spec": "acorn@^5.5.3",
+  "_where": "C:\\Users\\KoMoGoon\\Desktop\\oss_project\\Singer-Composer\\node_modules\\jsdom",
+  "bin": {
+    "acorn": "bin/acorn"
+  },
+  "bugs": {
+    "url": "https://github.com/acornjs/acorn/issues"
+  },
+  "bundleDependencies": false,
+  "contributors": [
+    {
+      "name": "List of Acorn contributors. Updated before every release."
+    },
+    {
+      "name": "Adrian Heine"
+    },
+    {
+      "name": "Adrian Rakovsky"
+    },
+    {
+      "name": "Alistair Braidwood"
+    },
+    {
+      "name": "Amila Welihinda"
+    },
+    {
+      "name": "Andres Suarez"
+    },
+    {
+      "name": "Angelo"
+    },
+    {
+      "name": "Aparajita Fishman"
+    },
+    {
+      "name": "Arian Stolwijk"
+    },
+    {
+      "name": "Artem Govorov"
+    },
+    {
+      "name": "Boopesh Mahendran"
+    },
+    {
+      "name": "Bradley Heinz"
+    },
+    {
+      "name": "Brandon Mills"
+    },
+    {
+      "name": "Charles Hughes"
+    },
+    {
+      "name": "Charmander"
+    },
+    {
+      "name": "Chris McKnight"
+    },
+    {
+      "name": "Conrad Irwin"
+    },
+    {
+      "name": "Daniel Tschinder"
+    },
+    {
+      "name": "David Bonnet"
+    },
+    {
+      "name": "Domenico Matteo"
+    },
+    {
+      "name": "ehmicky"
+    },
+    {
+      "name": "Eugene Obrezkov"
+    },
+    {
+      "name": "Felix Maier"
+    },
+    {
+      "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": "John-David Dalton"
+    },
+    {
+      "name": "Jordan Klassen"
+    },
+    {
+      "name": "Jürg Lehni"
+    },
+    {
+      "name": "Kai Cataldo"
+    },
+    {
+      "name": "keeyipchan"
+    },
+    {
+      "name": "Keheliya Gallaba"
+    },
+    {
+      "name": "Kevin Irish"
+    },
+    {
+      "name": "Kevin Kwok"
+    },
+    {
+      "name": "krator"
+    },
+    {
+      "name": "laosb"
+    },
+    {
+      "name": "luckyzeng"
+    },
+    {
+      "name": "Marek"
+    },
+    {
+      "name": "Marijn Haverbeke"
+    },
+    {
+      "name": "Martin Carlberg"
+    },
+    {
+      "name": "Mat Garcia"
+    },
+    {
+      "name": "Mathias Bynens"
+    },
+    {
+      "name": "Mathieu 'p01' Henri"
+    },
+    {
+      "name": "Matthew Bastien"
+    },
+    {
+      "name": "Max Schaefer"
+    },
+    {
+      "name": "Max Zerzouri"
+    },
+    {
+      "name": "Mihai Bazon"
+    },
+    {
+      "name": "Mike Rennie"
+    },
+    {
+      "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": "Renée Kooi"
+    },
+    {
+      "name": "Richard Gibson"
+    },
+    {
+      "name": "Rich Harris"
+    },
+    {
+      "name": "Sebastian McKenzie"
+    },
+    {
+      "name": "Shahar Soel"
+    },
+    {
+      "name": "Sheel Bedi"
+    },
+    {
+      "name": "Simen Bekkhus"
+    },
+    {
+      "name": "Teddy Katz"
+    },
+    {
+      "name": "Timothy Gu"
+    },
+    {
+      "name": "Toru Nagashima"
+    },
+    {
+      "name": "Victor Homyakov"
+    },
+    {
+      "name": "Wexpo Lyu"
+    },
+    {
+      "name": "zsjforcn"
+    }
+  ],
+  "deprecated": false,
+  "description": "ECMAScript parser",
+  "devDependencies": {
+    "eslint": "^4.10.0",
+    "eslint-config-standard": "^10.2.1",
+    "eslint-plugin-import": "^2.2.0",
+    "eslint-plugin-node": "^5.2.1",
+    "eslint-plugin-promise": "^3.5.0",
+    "eslint-plugin-standard": "^3.0.1",
+    "rollup": "^0.45.0",
+    "rollup-plugin-buble": "^0.16.0",
+    "test262": "git+https://github.com/tc39/test262.git#3bfad28cc302fd4455badcfcbca7c5bb7ce41a72",
+    "test262-parser-runner": "^0.4.0",
+    "unicode-11.0.0": "^0.7.7"
+  },
+  "engines": {
+    "node": ">=0.4.0"
+  },
+  "homepage": "https://github.com/acornjs/acorn",
+  "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": "Adrian Heine",
+      "email": "http://adrianheine.de"
+    }
+  ],
+  "module": "dist/acorn.es.js",
+  "name": "acorn",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/acornjs/acorn.git"
+  },
+  "scripts": {
+    "build": "npm run build:main && npm run build:walk && npm run build:loose && npm run build:bin",
+    "build:bin": "rollup -c rollup/config.bin.js",
+    "build:loose": "rollup -c rollup/config.loose.js && rollup -c rollup/config.loose_es.js",
+    "build:main": "rollup -c rollup/config.main.js",
+    "build:walk": "rollup -c rollup/config.walk.js",
+    "lint": "eslint src/",
+    "prepare": "npm run build && node test/run.js && node test/lint.js",
+    "pretest": "npm run build:main && npm run build:loose",
+    "test": "node test/run.js && node test/lint.js",
+    "test:test262": "node bin/run_test262.js"
+  },
+  "version": "5.7.4"
+}

+var Ajv = require('ajv');
+var ajv = new Ajv({allErrors: true});
+
+var schema = {
+  "properties": {
+    "foo": { "type": "string" },
+    "bar": { "type": "number", "maximum": 3 }
+  }
+};
+
+var validate = ajv.compile(schema);
+
+test({"foo": "abc", "bar": 2});
+test({"foo": 2, "bar": 4});
+
+function test(data) {
+  var valid = validate(data);
+  if (valid) console.log('Valid!');
+  else console.log('Invalid: ' + ajv.errorsText(validate.errors));
+}
\ No newline at end of file

-# Copyright (c) 2015 Calvin Metcalf
+The MIT License (MIT)
+
+Copyright (c) 2015-2017 Evgeny Poberezkin
 
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 of this software and associated documentation files (the "Software"), to deal
@@ -10,10 +12,11 @@ furnished to do so, subject to the following conditions:
 The above copyright notice and this permission notice shall be included in all
 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.
 copies or substantial portions of the Software.
 
 
-**THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 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
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.**
+SOFTWARE.
+

+'use strict';
+
+
+var Cache = module.exports = function Cache() {
+  this._cache = {};
+};
+
+
+Cache.prototype.put = function Cache_put(key, value) {
+  this._cache[key] = value;
+};
+
+
+Cache.prototype.get = function Cache_get(key) {
+  return this._cache[key];
+};
+
+
+Cache.prototype.del = function Cache_del(key) {
+  delete this._cache[key];
+};
+
+
+Cache.prototype.clear = function Cache_clear() {
+  this._cache = {};
+};