node_modules

46 files changed, 15804 insertions, 0 deletions

diff --git a/node_modules/js-yaml/CHANGELOG.md b/node_modules/js-yaml/CHANGELOG.md
new file mode 100644
index 000000000..9129beb59
--- /dev/null
+++ b/node_modules/js-yaml/CHANGELOG.md
@@ -0,0 +1,437 @@
+3.8.3 / 2017-04-05
+------------------
+
+- Should not allow numbers to begin and end with underscore, #335.
+
+
+3.8.2 / 2017-03-02
+------------------
+
+- Fix `!!float 123` (integers) parse, #333.
+- Don't allow leading zeros in floats (except 0, 0.xxx).
+- Allow positive exponent without sign in floats.
+
+
+3.8.1 / 2017-02-07
+------------------
+
+- Maintenance: update browserified build.
+
+
+3.8.0 / 2017-02-07
+------------------
+
+- Fix reported position for `duplicated mapping key` errors.
+  Now points to block start instead of block end.
+  (#243, thanks to @shockey).
+
+
+3.7.0 / 2016-11-12
+------------------
+
+- Fix parsing of quotes followed by newlines (#304, thanks to @dplepage).
+- Support polymorphism for tags (#300, thanks to @monken).
+
+
+3.6.1 / 2016-05-11
+------------------
+
+- Fix output cut on a pipe, #286.
+
+
+3.6.0 / 2016-04-16
+------------------
+
+- Dumper rewrite, fix multiple bugs with trailing `\n`.
+  Big thanks to @aepsilon!
+- Loader: fix leading/trailing newlines in block scalars, @aepsilon.
+
+
+3.5.5 / 2016-03-17
+------------------
+
+- Date parse fix: don't allow dates with on digit in month and day, #268.
+
+
+3.5.4 / 2016-03-09
+------------------
+
+- `noCompatMode` for dumper, to disable quoting YAML 1.1 values.
+
+
+3.5.3 / 2016-02-11
+------------------
+
+- Maintenance release.
+
+
+3.5.2 / 2016-01-11
+------------------
+
+- Maintenance: missed comma in bower config.
+
+
+3.5.1 / 2016-01-11
+------------------
+
+- Removed `inherit` dependency, #239.
+- Better browserify workaround for esprima load.
+- Demo rewrite.
+
+
+3.5.0 / 2016-01-10
+------------------
+
+- Dumper. Fold strings only, #217.
+- Dumper. `norefs` option, to clone linked objects, #229.
+- Loader. Throw a warning for duplicate keys, #166.
+- Improved browserify support (mark `esprima` & `Buffer` excluded).
+
+
+3.4.6 / 2015-11-26
+------------------
+
+- Use standalone `inherit` to keep browserified files clear.
+
+
+3.4.5 / 2015-11-23
+------------------
+
+- Added `lineWidth` option to dumper.
+
+
+3.4.4 / 2015-11-21
+------------------
+
+- Fixed floats dump (missed dot for scientific format), #220.
+- Allow non-printable characters inside quoted scalars, #192.
+
+
+3.4.3 / 2015-10-10
+------------------
+
+- Maintenance release - deps bump (esprima, argparse).
+
+
+3.4.2 / 2015-09-09
+------------------
+
+- Fixed serialization of duplicated entries in sequences, #205.
+  Thanks to @vogelsgesang.
+
+
+3.4.1 / 2015-09-05
+------------------
+
+- Fixed stacktrace handling in generated errors, for browsers (FF/IE).
+
+
+3.4.0 / 2015-08-23
+------------------
+
+- Fixed multiline keys dump, #197. Thanks to @tcr.
+- Don't throw on warnongs anymore. Use `onWarning` option to catch.
+- Throw error on unknown tags (was warning before).
+- Fixed heading line breaks in some scalars (regression).
+- Reworked internals of error class.
+
+
+3.3.1 / 2015-05-13
+------------------
+
+- Added `.sortKeys` dumper option, thanks to @rjmunro.
+- Fixed astral characters support, #191.
+
+
+3.3.0 / 2015-04-26
+------------------
+
+- Significantly improved long strings formatting in dumper, thanks to @isaacs.
+- Strip BOM if exists.
+
+
+3.2.7 / 2015-02-19
+------------------
+
+- Maintenance release.
+- Updated dependencies.
+- HISTORY.md -> CHANGELOG.md
+
+
+3.2.6 / 2015-02-07
+------------------
+
+- Fixed encoding of UTF-16 surrogate pairs. (e.g. "\U0001F431" CAT FACE).
+- Fixed demo dates dump (#113, thanks to @Hypercubed).
+
+
+3.2.5 / 2014-12-28
+------------------
+
+- Fixed resolving of all built-in types on empty nodes.
+- Fixed invalid warning on empty lines within quoted scalars and flow collections.
+- Fixed bug: Tag on an empty node didn't resolve in some cases.
+
+
+3.2.4 / 2014-12-19
+------------------
+
+- Fixed resolving of !!null tag on an empty node.
+
+
+3.2.3 / 2014-11-08
+------------------
+
+- Implemented dumping of objects with circular and cross references.
+- Partially fixed aliasing of constructed objects. (see issue #141 for details)
+
+
+3.2.2 / 2014-09-07
+------------------
+
+- Fixed infinite loop on unindented block scalars.
+- Rewritten base64 encode/decode in binary type, to keep code licence clear.
+
+
+3.2.1 / 2014-08-24
+------------------
+
+- Nothig new. Just fix npm publish error.
+
+
+3.2.0 / 2014-08-24
+------------------
+
+- Added input piping support to CLI.
+- Fixed typo, that could cause hand on initial indent (#139).
+
+
+3.1.0 / 2014-07-07
+------------------
+
+- 1.5x-2x speed boost.
+- Removed deprecated `require('xxx.yml')` support.
+- Significant code cleanup and refactoring.
+- Internal API changed. If you used custom types - see updated examples.
+  Others are not affected.
+- Even if the input string has no trailing line break character,
+  it will be parsed as if it has one.
+- Added benchmark scripts.
+- Moved bower files to /dist folder
+- Bugfixes.
+
+
+3.0.2 / 2014-02-27
+------------------
+
+- Fixed bug: "constructor" string parsed as `null`.
+
+
+3.0.1 / 2013-12-22
+------------------
+
+- Fixed parsing of literal scalars. (issue #108)
+- Prevented adding unnecessary spaces in object dumps. (issue #68)
+- Fixed dumping of objects with very long (> 1024 in length) keys.
+
+
+3.0.0 / 2013-12-16
+------------------
+
+- Refactored code. Changed API for custom types.
+- Removed output colors in CLI, dump json by default.
+- Removed big dependencies from browser version (esprima, buffer)
+  - load `esprima` manually, if !!js/function needed
+  - !!bin now returns Array in browser
+- AMD support.
+- Don't quote dumped strings because of `-` & `?` (if not first char).
+- __Deprecated__ loading yaml files via `require()`, as not recommended
+  behaviour for node.
+
+
+2.1.3 / 2013-10-16
+------------------
+
+- Fix wrong loading of empty block scalars.
+
+
+2.1.2 / 2013-10-07
+------------------
+
+- Fix unwanted line breaks in folded scalars.
+
+
+2.1.1 / 2013-10-02
+------------------
+
+- Dumper now respects deprecated booleans syntax from YAML 1.0/1.1
+- Fixed reader bug in JSON-like sequences/mappings.
+
+
+2.1.0 / 2013-06-05
+------------------
+
+- Add standard YAML schemas: Failsafe (`FAILSAFE_SCHEMA`),
+  JSON (`JSON_SCHEMA`) and Core (`CORE_SCHEMA`).
+- Rename `DEFAULT_SCHEMA` to `DEFAULT_FULL_SCHEMA`
+  and `SAFE_SCHEMA` to `DEFAULT_SAFE_SCHEMA`.
+- Bug fix: export `NIL` constant from the public interface.
+- Add `skipInvalid` dumper option.
+- Use `safeLoad` for `require` extension.
+
+
+2.0.5 / 2013-04-26
+------------------
+
+- Close security issue in !!js/function constructor.
+  Big thanks to @nealpoole for security audit.
+
+
+2.0.4 / 2013-04-08
+------------------
+
+- Updated .npmignore to reduce package size
+
+
+2.0.3 / 2013-02-26
+------------------
+
+- Fixed dumping of empty arrays ans objects. ([] and {} instead of null)
+
+
+2.0.2 / 2013-02-15
+------------------
+
+- Fixed input validation: tabs are printable characters.
+
+
+2.0.1 / 2013-02-09
+------------------
+
+- Fixed error, when options not passed to function cass
+
+
+2.0.0 / 2013-02-09
+------------------
+
+- Full rewrite. New architecture. Fast one-stage parsing.
+- Changed custom types API.
+- Added YAML dumper.
+
+
+1.0.3 / 2012-11-05
+------------------
+
+- Fixed utf-8 files loading.
+
+
+1.0.2 / 2012-08-02
+------------------
+
+- Pull out hand-written shims. Use ES5-Shims for old browsers support. See #44.
+- Fix timstamps incorectly parsed in local time when no time part specified.
+
+
+1.0.1 / 2012-07-07
+------------------
+
+- Fixes `TypeError: 'undefined' is not an object` under Safari. Thanks Phuong.
+- Fix timestamps incorrectly parsed in local time. Thanks @caolan. Closes #46.
+
+
+1.0.0 / 2012-07-01
+------------------
+
+- `y`, `yes`, `n`, `no`, `on`, `off` are not converted to Booleans anymore.
+  Fixes #42.
+- `require(filename)` now returns a single document and throws an Error if
+  file contains more than one document.
+- CLI was merged back from js-yaml.bin
+
+
+0.3.7 / 2012-02-28
+------------------
+
+- Fix export of `addConstructor()`. Closes #39.
+
+
+0.3.6 / 2012-02-22
+------------------
+
+- Removed AMD parts - too buggy to use. Need help to rewrite from scratch
+- Removed YUI compressor warning (renamed `double` variable). Closes #40.
+
+
+0.3.5 / 2012-01-10
+------------------
+
+- Workagound for .npmignore fuckup under windows. Thanks to airportyh.
+
+
+0.3.4 / 2011-12-24
+------------------
+
+- Fixes str[] for oldIEs support.
+- Adds better has change support for browserified demo.
+- improves compact output of Error. Closes #33.
+
+
+0.3.3 / 2011-12-20
+------------------
+
+- jsyaml executable moved to separate module.
+- adds `compact` stringification of Errors.
+
+
+0.3.2 / 2011-12-16
+------------------
+
+- Fixes ug with block style scalars. Closes #26.
+- All sources are passing JSLint now.
+- Fixes bug in Safari. Closes #28.
+- Fixes bug in Opers. Closes #29.
+- Improves browser support. Closes #20.
+- Added jsyaml executable.
+- Added !!js/function support. Closes #12.
+
+
+0.3.1 / 2011-11-18
+------------------
+
+- Added AMD support for browserified version.
+- Wrapped browserified js-yaml into closure.
+- Fixed the resolvement of non-specific tags. Closes #17.
+- Added permalinks for online demo YAML snippets. Now we have YPaste service, lol.
+- Added !!js/regexp and !!js/undefined types. Partially solves #12.
+- Fixed !!set mapping.
+- Fixed month parse in dates. Closes #19.
+
+
+0.3.0 / 2011-11-09
+------------------
+
+- Removed JS.Class dependency. Closes #3.
+- Added browserified version. Closes #13.
+- Added live demo of browserified version.
+- Ported some of the PyYAML tests. See #14.
+- Fixed timestamp bug when fraction was given.
+
+
+0.2.2 / 2011-11-06
+------------------
+
+- Fixed crash on docs without ---. Closes #8.
+- Fixed miltiline string parse
+- Fixed tests/comments for using array as key
+
+
+0.2.1 / 2011-11-02
+------------------
+
+- Fixed short file read (<4k). Closes #9.
+
+
+0.2.0 / 2011-11-02
+------------------
+
+- First public release
diff --git a/node_modules/js-yaml/LICENSE b/node_modules/js-yaml/LICENSE
new file mode 100644
index 000000000..09d3a29e9
--- /dev/null
+++ b/node_modules/js-yaml/LICENSE
@@ -0,0 +1,21 @@
+(The MIT License)
+
+Copyright (C) 2011-2015 by Vitaly Puzrin
+
+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.
diff --git a/node_modules/js-yaml/README.md b/node_modules/js-yaml/README.md
new file mode 100644
index 000000000..c6338facc
--- /dev/null
+++ b/node_modules/js-yaml/README.md
@@ -0,0 +1,312 @@
+JS-YAML - YAML 1.2 parser / writer for JavaScript
+=================================================
+
+[![Build Status](https://travis-ci.org/nodeca/js-yaml.svg?branch=master)](https://travis-ci.org/nodeca/js-yaml)
+[![NPM version](https://img.shields.io/npm/v/js-yaml.svg)](https://www.npmjs.org/package/js-yaml)
+
+__[Online Demo](http://nodeca.github.com/js-yaml/)__
+
+
+This is an implementation of [YAML](http://yaml.org/), a human-friendly data
+serialization language. Started as [PyYAML](http://pyyaml.org/) port, it was
+completely rewritten from scratch. Now it's very fast, and supports 1.2 spec.
+
+
+Installation
+------------
+
+### YAML module for node.js
+
+```
+npm install js-yaml
+```
+
+
+### CLI executable
+
+If you want to inspect your YAML files from CLI, install js-yaml globally:
+
+```
+npm install -g js-yaml
+```
+
+#### Usage
+
+```
+usage: js-yaml [-h] [-v] [-c] [-t] file
+
+Positional arguments:
+  file           File with YAML document(s)
+
+Optional arguments:
+  -h, --help     Show this help message and exit.
+  -v, --version  Show program's version number and exit.
+  -c, --compact  Display errors in compact mode
+  -t, --trace    Show stack trace on error
+```
+
+
+### Bundled YAML library for browsers
+
+``` html
+<!-- esprima required only for !!js/function -->
+<script src="esprima.js"></script>
+<script src="js-yaml.min.js"></script>
+<script type="text/javascript">
+var doc = jsyaml.load('greeting: hello\nname: world');
+</script>
+```
+
+Browser support was done mostly for the online demo. If you find any errors - feel
+free to send pull requests with fixes. Also note, that IE and other old browsers
+needs [es5-shims](https://github.com/kriskowal/es5-shim) to operate.
+
+Notes:
+
+1. We have no resources to support browserified version. Don't expect it to be
+   well tested. Don't expect fast fixes if something goes wrong there.
+2. `!!js/function` in browser bundle will not work by default. If you really need
+   it - load `esprima` parser first (via amd or directly).
+3. `!!bin` in browser will return `Array`, because browsers do not support
+   node.js `Buffer` and adding Buffer shims is completely useless on practice.
+
+
+API
+---
+
+Here we cover the most 'useful' methods. If you need advanced details (creating
+your own tags), see [wiki](https://github.com/nodeca/js-yaml/wiki) and
+[examples](https://github.com/nodeca/js-yaml/tree/master/examples) for more
+info.
+
+``` javascript
+yaml = require('js-yaml');
+fs   = require('fs');
+
+// Get document, or throw exception on error
+try {
+  var doc = yaml.safeLoad(fs.readFileSync('/home/ixti/example.yml', 'utf8'));
+  console.log(doc);
+} catch (e) {
+  console.log(e);
+}
+```
+
+
+### safeLoad (string [ , options ])
+
+**Recommended loading way.** Parses `string` as single YAML document. Returns a JavaScript
+object or throws `YAMLException` on error. By default, does not support regexps,
+functions and undefined. This method is safe for untrusted data.
+
+options:
+
+- `filename` _(default: null)_ - string to be used as a file path in
+  error/warning messages.
+- `onWarning` _(default: null)_ - function to call on warning messages.
+  Loader will throw on warnings if this function is not provided.
+- `schema` _(default: `DEFAULT_SAFE_SCHEMA`)_ - specifies a schema to use.
+  - `FAILSAFE_SCHEMA` - only strings, arrays and plain objects:
+    http://www.yaml.org/spec/1.2/spec.html#id2802346
+  - `JSON_SCHEMA` - all JSON-supported types:
+    http://www.yaml.org/spec/1.2/spec.html#id2803231
+  - `CORE_SCHEMA` - same as `JSON_SCHEMA`:
+    http://www.yaml.org/spec/1.2/spec.html#id2804923
+  - `DEFAULT_SAFE_SCHEMA` - all supported YAML types, without unsafe ones
+    (`!!js/undefined`, `!!js/regexp` and `!!js/function`):
+    http://yaml.org/type/
+  - `DEFAULT_FULL_SCHEMA` - all supported YAML types.
+- `json` _(default: false)_ - compatibility with JSON.parse behaviour. If true, then duplicate keys in a mapping will override values rather than throwing an error.
+
+NOTE: This function **does not** understand multi-document sources, it throws
+exception on those.
+
+NOTE: JS-YAML **does not** support schema-specific tag resolution restrictions.
+So, the JSON schema is not as strictly defined in the YAML specification.
+It allows numbers in any notation, use `Null` and `NULL` as `null`, etc.
+The core schema also has no such restrictions. It allows binary notation for integers.
+
+
+### load (string [ , options ])
+
+**Use with care with untrusted sources**. The same as `safeLoad()` but uses
+`DEFAULT_FULL_SCHEMA` by default - adds some JavaScript-specific types:
+`!!js/function`, `!!js/regexp` and `!!js/undefined`. For untrusted sources, you
+must additionally validate object structure to avoid injections:
+
+``` javascript
+var untrusted_code = '"toString": !<tag:yaml.org,2002:js/function> "function (){very_evil_thing();}"';
+
+// I'm just converting that string, what could possibly go wrong?
+require('js-yaml').load(untrusted_code) + ''
+```
+
+
+### safeLoadAll (string, iterator [ , options ])
+
+Same as `safeLoad()`, but understands multi-document sources and applies
+`iterator` to each document.
+
+``` javascript
+var yaml = require('js-yaml');
+
+yaml.safeLoadAll(data, function (doc) {
+  console.log(doc);
+});
+```
+
+
+### loadAll (string, iterator [ , options ])
+
+Same as `safeLoadAll()` but uses `DEFAULT_FULL_SCHEMA` by default.
+
+
+### safeDump (object [ , options ])
+
+Serializes `object` as a YAML document. Uses `DEFAULT_SAFE_SCHEMA`, so it will
+throw an exception if you try to dump regexps or functions. However, you can
+disable exceptions by setting the `skipInvalid` option to `true`.
+
+options:
+
+- `indent` _(default: 2)_ - indentation width to use (in spaces).
+- `skipInvalid` _(default: false)_ - do not throw on invalid types (like function
+  in the safe schema) and skip pairs and single values with such types.
+- `flowLevel` (default: -1) - specifies level of nesting, when to switch from
+  block to flow style for collections. -1 means block style everwhere
+- `styles` - "tag" => "style" map. Each tag may have own set of styles.
+- `schema` _(default: `DEFAULT_SAFE_SCHEMA`)_ specifies a schema to use.
+- `sortKeys` _(default: `false`)_ - if `true`, sort keys when dumping YAML. If a
+  function, use the function to sort the keys.
+- `lineWidth` _(default: `80`)_ - set max line width.
+- `noRefs` _(default: `false`)_ - if `true`, don't convert duplicate objects into references
+- `noCompatMode` _(default: `false`)_ - if `true` don't try to be compatible with older
+  yaml versions. Currently: don't quote "yes", "no" and so on, as required for YAML 1.1
+
+The following table show availlable styles (e.g. "canonical",
+"binary"...) available for each tag (.e.g. !!null, !!int ...). Yaml
+ouput is shown on the right side after `=>` (default setting) or `->`:
+
+``` none
+!!null
+  "canonical"   -> "~"
+  "lowercase"   => "null"
+  "uppercase"   -> "NULL"
+  "camelcase"   -> "Null"
+
+!!int
+  "binary"      -> "0b1", "0b101010", "0b1110001111010"
+  "octal"       -> "01", "052", "016172"
+  "decimal"     => "1", "42", "7290"
+  "hexadecimal" -> "0x1", "0x2A", "0x1C7A"
+
+!!bool
+  "lowercase"   => "true", "false"
+  "uppercase"   -> "TRUE", "FALSE"
+  "camelcase"   -> "True", "False"
+
+!!float
+  "lowercase"   => ".nan", '.inf'
+  "uppercase"   -> ".NAN", '.INF'
+  "camelcase"   -> ".NaN", '.Inf'
+```
+
+Example:
+
+``` javascript
+safeDump (object, {
+  'styles': {
+    '!!null': 'canonical' // dump null as ~
+  },
+  'sortKeys': true        // sort object keys
+});
+```
+
+### dump (object [ , options ])
+
+Same as `safeDump()` but without limits (uses `DEFAULT_FULL_SCHEMA` by default).
+
+
+Supported YAML types
+--------------------
+
+The list of standard YAML tags and corresponding JavaScipt types. See also
+[YAML tag discussion](http://pyyaml.org/wiki/YAMLTagDiscussion) and
+[YAML types repository](http://yaml.org/type/).
+
+```
+!!null ''                   # null
+!!bool 'yes'                # bool
+!!int '3...'                # number
+!!float '3.14...'           # number
+!!binary '...base64...'     # buffer
+!!timestamp 'YYYY-...'      # date
+!!omap [ ... ]              # array of key-value pairs
+!!pairs [ ... ]             # array or array pairs
+!!set { ... }               # array of objects with given keys and null values
+!!str '...'                 # string
+!!seq [ ... ]               # array
+!!map { ... }               # object
+```
+
+**JavaScript-specific tags**
+
+```
+!!js/regexp /pattern/gim            # RegExp
+!!js/undefined ''                   # Undefined
+!!js/function 'function () {...}'   # Function
+```
+
+Caveats
+-------
+
+Note, that you use arrays or objects as key in JS-YAML. JS does not allow objects
+or arrays as keys, and stringifies (by calling .toString method) them at the
+moment of adding them.
+
+``` yaml
+---
+? [ foo, bar ]
+: - baz
+? { foo: bar }
+: - baz
+  - baz
+```
+
+``` javascript
+{ "foo,bar": ["baz"], "[object Object]": ["baz", "baz"] }
+```
+
+Also, reading of properties on implicit block mapping keys is not supported yet.
+So, the following YAML document cannot be loaded.
+
+``` yaml
+&anchor foo:
+  foo: bar
+  *anchor: duplicate key
+  baz: bat
+  *anchor: duplicate key
+```
+
+
+Breaking changes in 2.x.x -> 3.x.x
+----------------------------------
+
+If you have not used __custom__ tags or loader classes and not loaded yaml
+files via `require()`, no changes are needed. Just upgrade the library.
+
+Otherwise, you should:
+
+1. Replace all occurences of `require('xxxx.yml')` by `fs.readFileSync()` +
+  `yaml.safeLoad()`.
+2. rewrite your custom tags constructors and custom loader
+  classes, to conform the new API. See
+  [examples](https://github.com/nodeca/js-yaml/tree/master/examples) and
+  [wiki](https://github.com/nodeca/js-yaml/wiki) for details.
+
+
+License
+-------
+
+View the [LICENSE](https://github.com/nodeca/js-yaml/blob/master/LICENSE) file
+(MIT).
diff --git a/node_modules/js-yaml/bin/js-yaml.js b/node_modules/js-yaml/bin/js-yaml.js
new file mode 100755
index 000000000..e79186be6
--- /dev/null
+++ b/node_modules/js-yaml/bin/js-yaml.js
@@ -0,0 +1,132 @@
+#!/usr/bin/env node
+
+
+'use strict';
+
+/*eslint-disable no-console*/
+
+
+// stdlib
+var fs    = require('fs');
+
+
+// 3rd-party
+var argparse = require('argparse');
+
+
+// internal
+var yaml = require('..');
+
+
+////////////////////////////////////////////////////////////////////////////////
+
+
+var cli = new argparse.ArgumentParser({
+  prog:     'js-yaml',
+  version:  require('../package.json').version,
+  addHelp:  true
+});
+
+
+cli.addArgument([ '-c', '--compact' ], {
+  help:   'Display errors in compact mode',
+  action: 'storeTrue'
+});
+
+
+// deprecated (not needed after we removed output colors)
+// option suppressed, but not completely removed for compatibility
+cli.addArgument([ '-j', '--to-json' ], {
+  help:   argparse.Const.SUPPRESS,
+  dest:   'json',
+  action: 'storeTrue'
+});
+
+
+cli.addArgument([ '-t', '--trace' ], {
+  help:   'Show stack trace on error',
+  action: 'storeTrue'
+});
+
+cli.addArgument([ 'file' ], {
+  help:   'File to read, utf-8 encoded without BOM',
+  nargs:  '?',
+  defaultValue: '-'
+});
+
+
+////////////////////////////////////////////////////////////////////////////////
+
+
+var options = cli.parseArgs();
+
+
+////////////////////////////////////////////////////////////////////////////////
+
+function readFile(filename, encoding, callback) {
+  if (options.file === '-') {
+    // read from stdin
+
+    var chunks = [];
+
+    process.stdin.on('data', function (chunk) {
+      chunks.push(chunk);
+    });
+
+    process.stdin.on('end', function () {
+      return callback(null, Buffer.concat(chunks).toString(encoding));
+    });
+  } else {
+    fs.readFile(filename, encoding, callback);
+  }
+}
+
+readFile(options.file, 'utf8', function (error, input) {
+  var output, isYaml;
+
+  if (error) {
+    if (error.code === 'ENOENT') {
+      console.error('File not found: ' + options.file);
+      process.exit(2);
+    }
+
+    console.error(
+      options.trace && error.stack ||
+      error.message ||
+      String(error));
+
+    process.exit(1);
+  }
+
+  try {
+    output = JSON.parse(input);
+    isYaml = false;
+  } catch (err) {
+    if (err instanceof SyntaxError) {
+      try {
+        output = [];
+        yaml.loadAll(input, function (doc) { output.push(doc); }, {});
+        isYaml = true;
+
+        if (output.length === 0) output = null;
+        else if (output.length === 1) output = output[0];
+
+      } catch (e) {
+        if (options.trace && err.stack) console.error(e.stack);
+        else console.error(e.toString(options.compact));
+
+        process.exit(1);
+      }
+    } else {
+      console.error(
+        options.trace && err.stack ||
+        err.message ||
+        String(err));
+
+      process.exit(1);
+    }
+  }
+
+  if (isYaml) console.log(JSON.stringify(output, null, '  '));
+  else console.log(yaml.dump(output));
+});
diff --git a/node_modules/js-yaml/dist/js-yaml.js b/node_modules/js-yaml/dist/js-yaml.js
new file mode 100644
index 000000000..5c618177a
--- /dev/null
+++ b/node_modules/js-yaml/dist/js-yaml.js
@@ -0,0 +1,3877 @@
+/* js-yaml 3.8.3 https://github.com/nodeca/js-yaml */(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.jsyaml = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+'use strict';
+
+
+var loader = require('./js-yaml/loader');
+var dumper = require('./js-yaml/dumper');
+
+
+function deprecated(name) {
+  return function () {
+    throw new Error('Function ' + name + ' is deprecated and cannot be used.');
+  };
+}
+
+
+module.exports.Type                = require('./js-yaml/type');
+module.exports.Schema              = require('./js-yaml/schema');
+module.exports.FAILSAFE_SCHEMA     = require('./js-yaml/schema/failsafe');
+module.exports.JSON_SCHEMA         = require('./js-yaml/schema/json');
+module.exports.CORE_SCHEMA         = require('./js-yaml/schema/core');
+module.exports.DEFAULT_SAFE_SCHEMA = require('./js-yaml/schema/default_safe');
+module.exports.DEFAULT_FULL_SCHEMA = require('./js-yaml/schema/default_full');
+module.exports.load                = loader.load;
+module.exports.loadAll             = loader.loadAll;
+module.exports.safeLoad            = loader.safeLoad;
+module.exports.safeLoadAll         = loader.safeLoadAll;
+module.exports.dump                = dumper.dump;
+module.exports.safeDump            = dumper.safeDump;
+module.exports.YAMLException       = require('./js-yaml/exception');
+
+// Deprecated schema names from JS-YAML 2.0.x
+module.exports.MINIMAL_SCHEMA = require('./js-yaml/schema/failsafe');
+module.exports.SAFE_SCHEMA    = require('./js-yaml/schema/default_safe');
+module.exports.DEFAULT_SCHEMA = require('./js-yaml/schema/default_full');
+
+// Deprecated functions from JS-YAML 1.x.x
+module.exports.scan           = deprecated('scan');
+module.exports.parse          = deprecated('parse');
+module.exports.compose        = deprecated('compose');
+module.exports.addConstructor = deprecated('addConstructor');
+
+},{"./js-yaml/dumper":3,"./js-yaml/exception":4,"./js-yaml/loader":5,"./js-yaml/schema":7,"./js-yaml/schema/core":8,"./js-yaml/schema/default_full":9,"./js-yaml/schema/default_safe":10,"./js-yaml/schema/failsafe":11,"./js-yaml/schema/json":12,"./js-yaml/type":13}],2:[function(require,module,exports){
+'use strict';
+
+
+function isNothing(subject) {
+  return (typeof subject === 'undefined') || (subject === null);
+}
+
+
+function isObject(subject) {
+  return (typeof subject === 'object') && (subject !== null);
+}
+
+
+function toArray(sequence) {
+  if (Array.isArray(sequence)) return sequence;
+  else if (isNothing(sequence)) return [];
+
+  return [ sequence ];
+}
+
+
+function extend(target, source) {
+  var index, length, key, sourceKeys;
+
+  if (source) {
+    sourceKeys = Object.keys(source);
+
+    for (index = 0, length = sourceKeys.length; index < length; index += 1) {
+      key = sourceKeys[index];
+      target[key] = source[key];
+    }
+  }
+
+  return target;
+}
+
+
+function repeat(string, count) {
+  var result = '', cycle;
+
+  for (cycle = 0; cycle < count; cycle += 1) {
+    result += string;
+  }
+
+  return result;
+}
+
+
+function isNegativeZero(number) {
+  return (number === 0) && (Number.NEGATIVE_INFINITY === 1 / number);
+}
+
+
+module.exports.isNothing      = isNothing;
+module.exports.isObject       = isObject;
+module.exports.toArray        = toArray;
+module.exports.repeat         = repeat;
+module.exports.isNegativeZero = isNegativeZero;
+module.exports.extend         = extend;
+
+},{}],3:[function(require,module,exports){
+'use strict';
+
+/*eslint-disable no-use-before-define*/
+
+var common              = require('./common');
+var YAMLException       = require('./exception');
+var DEFAULT_FULL_SCHEMA = require('./schema/default_full');
+var DEFAULT_SAFE_SCHEMA = require('./schema/default_safe');
+
+var _toString       = Object.prototype.toString;
+var _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+var CHAR_TAB                  = 0x09; /* Tab */
+var CHAR_LINE_FEED            = 0x0A; /* LF */
+var CHAR_SPACE                = 0x20; /* Space */
+var CHAR_EXCLAMATION          = 0x21; /* ! */
+var CHAR_DOUBLE_QUOTE         = 0x22; /* " */
+var CHAR_SHARP                = 0x23; /* # */
+var CHAR_PERCENT              = 0x25; /* % */
+var CHAR_AMPERSAND            = 0x26; /* & */
+var CHAR_SINGLE_QUOTE         = 0x27; /* ' */
+var CHAR_ASTERISK             = 0x2A; /* * */
+var CHAR_COMMA                = 0x2C; /* , */
+var CHAR_MINUS                = 0x2D; /* - */
+var CHAR_COLON                = 0x3A; /* : */
+var CHAR_GREATER_THAN         = 0x3E; /* > */
+var CHAR_QUESTION             = 0x3F; /* ? */
+var CHAR_COMMERCIAL_AT        = 0x40; /* @ */
+var CHAR_LEFT_SQUARE_BRACKET  = 0x5B; /* [ */
+var CHAR_RIGHT_SQUARE_BRACKET = 0x5D; /* ] */
+var CHAR_GRAVE_ACCENT         = 0x60; /* ` */
+var CHAR_LEFT_CURLY_BRACKET   = 0x7B; /* { */
+var CHAR_VERTICAL_LINE        = 0x7C; /* | */
+var CHAR_RIGHT_CURLY_BRACKET  = 0x7D; /* } */
+
+var ESCAPE_SEQUENCES = {};
+
+ESCAPE_SEQUENCES[0x00]   = '\\0';
+ESCAPE_SEQUENCES[0x07]   = '\\a';
+ESCAPE_SEQUENCES[0x08]   = '\\b';
+ESCAPE_SEQUENCES[0x09]   = '\\t';
+ESCAPE_SEQUENCES[0x0A]   = '\\n';
+ESCAPE_SEQUENCES[0x0B]   = '\\v';
+ESCAPE_SEQUENCES[0x0C]   = '\\f';
+ESCAPE_SEQUENCES[0x0D]   = '\\r';
+ESCAPE_SEQUENCES[0x1B]   = '\\e';
+ESCAPE_SEQUENCES[0x22]   = '\\"';
+ESCAPE_SEQUENCES[0x5C]   = '\\\\';
+ESCAPE_SEQUENCES[0x85]   = '\\N';
+ESCAPE_SEQUENCES[0xA0]   = '\\_';
+ESCAPE_SEQUENCES[0x2028] = '\\L';
+ESCAPE_SEQUENCES[0x2029] = '\\P';
+
+var DEPRECATED_BOOLEANS_SYNTAX = [
+  'y', 'Y', 'yes', 'Yes', 'YES', 'on', 'On', 'ON',
+  'n', 'N', 'no', 'No', 'NO', 'off', 'Off', 'OFF'
+];
+
+function compileStyleMap(schema, map) {
+  var result, keys, index, length, tag, style, type;
+
+  if (map === null) return {};
+
+  result = {};
+  keys = Object.keys(map);
+
+  for (index = 0, length = keys.length; index < length; index += 1) {
+    tag = keys[index];
+    style = String(map[tag]);
+
+    if (tag.slice(0, 2) === '!!') {
+      tag = 'tag:yaml.org,2002:' + tag.slice(2);
+    }
+    type = schema.compiledTypeMap['fallback'][tag];
+
+    if (type && _hasOwnProperty.call(type.styleAliases, style)) {
+      style = type.styleAliases[style];
+    }
+
+    result[tag] = style;
+  }
+
+  return result;
+}
+
+function encodeHex(character) {
+  var string, handle, length;
+
+  string = character.toString(16).toUpperCase();
+
+  if (character <= 0xFF) {
+    handle = 'x';
+    length = 2;
+  } else if (character <= 0xFFFF) {
+    handle = 'u';
+    length = 4;
+  } else if (character <= 0xFFFFFFFF) {
+    handle = 'U';
+    length = 8;
+  } else {
+    throw new YAMLException('code point within a string may not be greater than 0xFFFFFFFF');
+  }
+
+  return '\\' + handle + common.repeat('0', length - string.length) + string;
+}
+
+function State(options) {
+  this.schema       = options['schema'] || DEFAULT_FULL_SCHEMA;
+  this.indent       = Math.max(1, (options['indent'] || 2));
+  this.skipInvalid  = options['skipInvalid'] || false;
+  this.flowLevel    = (common.isNothing(options['flowLevel']) ? -1 : options['flowLevel']);
+  this.styleMap     = compileStyleMap(this.schema, options['styles'] || null);
+  this.sortKeys     = options['sortKeys'] || false;
+  this.lineWidth    = options['lineWidth'] || 80;
+  this.noRefs       = options['noRefs'] || false;
+  this.noCompatMode = options['noCompatMode'] || false;
+
+  this.implicitTypes = this.schema.compiledImplicit;
+  this.explicitTypes = this.schema.compiledExplicit;
+
+  this.tag = null;
+  this.result = '';
+
+  this.duplicates = [];
+  this.usedDuplicates = null;
+}
+
+// Indents every line in a string. Empty lines (\n only) are not indented.
+function indentString(string, spaces) {
+  var ind = common.repeat(' ', spaces),
+      position = 0,
+      next = -1,
+      result = '',
+      line,
+      length = string.length;
+
+  while (position < length) {
+    next = string.indexOf('\n', position);
+    if (next === -1) {
+      line = string.slice(position);
+      position = length;
+    } else {
+      line = string.slice(position, next + 1);
+      position = next + 1;
+    }
+
+    if (line.length && line !== '\n') result += ind;
+
+    result += line;
+  }
+
+  return result;
+}
+
+function generateNextLine(state, level) {
+  return '\n' + common.repeat(' ', state.indent * level);
+}
+
+function testImplicitResolving(state, str) {
+  var index, length, type;
+
+  for (index = 0, length = state.implicitTypes.length; index < length; index += 1) {
+    type = state.implicitTypes[index];
+
+    if (type.resolve(str)) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+// [33] s-white ::= s-space | s-tab
+function isWhitespace(c) {
+  return c === CHAR_SPACE || c === CHAR_TAB;
+}
+
+// Returns true if the character can be printed without escaping.
+// From YAML 1.2: "any allowed characters known to be non-printable
+// should also be escaped. [However,] This isn’t mandatory"
+// Derived from nb-char - \t - #x85 - #xA0 - #x2028 - #x2029.
+function isPrintable(c) {
+  return  (0x00020 <= c && c <= 0x00007E)
+      || ((0x000A1 <= c && c <= 0x00D7FF) && c !== 0x2028 && c !== 0x2029)
+      || ((0x0E000 <= c && c <= 0x00FFFD) && c !== 0xFEFF /* BOM */)
+      ||  (0x10000 <= c && c <= 0x10FFFF);
+}
+
+// Simplified test for values allowed after the first character in plain style.
+function isPlainSafe(c) {
+  // Uses a subset of nb-char - c-flow-indicator - ":" - "#"
+  // where nb-char ::= c-printable - b-char - c-byte-order-mark.
+  return isPrintable(c) && c !== 0xFEFF
+    // - c-flow-indicator
+    && c !== CHAR_COMMA
+    && c !== CHAR_LEFT_SQUARE_BRACKET
+    && c !== CHAR_RIGHT_SQUARE_BRACKET
+    && c !== CHAR_LEFT_CURLY_BRACKET
+    && c !== CHAR_RIGHT_CURLY_BRACKET
+    // - ":" - "#"
+    && c !== CHAR_COLON
+    && c !== CHAR_SHARP;
+}
+
+// Simplified test for values allowed as the first character in plain style.
+function isPlainSafeFirst(c) {
+  // Uses a subset of ns-char - c-indicator
+  // where ns-char = nb-char - s-white.
+  return isPrintable(c) && c !== 0xFEFF
+    && !isWhitespace(c) // - s-white
+    // - (c-indicator ::=
+    // “-” | “?” | “:” | “,” | “[” | “]” | “{” | “}”
+    && c !== CHAR_MINUS
+    && c !== CHAR_QUESTION
+    && c !== CHAR_COLON
+    && c !== CHAR_COMMA
+    && c !== CHAR_LEFT_SQUARE_BRACKET
+    && c !== CHAR_RIGHT_SQUARE_BRACKET
+    && c !== CHAR_LEFT_CURLY_BRACKET
+    && c !== CHAR_RIGHT_CURLY_BRACKET
+    // | “#” | “&” | “*” | “!” | “|” | “>” | “'” | “"”
+    && c !== CHAR_SHARP
+    && c !== CHAR_AMPERSAND
+    && c !== CHAR_ASTERISK
+    && c !== CHAR_EXCLAMATION
+    && c !== CHAR_VERTICAL_LINE
+    && c !== CHAR_GREATER_THAN
+    && c !== CHAR_SINGLE_QUOTE
+    && c !== CHAR_DOUBLE_QUOTE
+    // | “%” | “@” | “`”)
+    && c !== CHAR_PERCENT
+    && c !== CHAR_COMMERCIAL_AT
+    && c !== CHAR_GRAVE_ACCENT;
+}
+
+var STYLE_PLAIN   = 1,
+    STYLE_SINGLE  = 2,
+    STYLE_LITERAL = 3,
+    STYLE_FOLDED  = 4,
+    STYLE_DOUBLE  = 5;
+
+// Determines which scalar styles are possible and returns the preferred style.
+// lineWidth = -1 => no limit.
+// Pre-conditions: str.length > 0.
+// Post-conditions:
+//    STYLE_PLAIN or STYLE_SINGLE => no \n are in the string.
+//    STYLE_LITERAL => no lines are suitable for folding (or lineWidth is -1).
+//    STYLE_FOLDED => a line > lineWidth and can be folded (and lineWidth != -1).
+function chooseScalarStyle(string, singleLineOnly, indentPerLevel, lineWidth, testAmbiguousType) {
+  var i;
+  var char;
+  var hasLineBreak = false;
+  var hasFoldableLine = false; // only checked if shouldTrackWidth
+  var shouldTrackWidth = lineWidth !== -1;
+  var previousLineBreak = -1; // count the first line correctly
+  var plain = isPlainSafeFirst(string.charCodeAt(0))
+          && !isWhitespace(string.charCodeAt(string.length - 1));
+
+  if (singleLineOnly) {
+    // Case: no block styles.
+    // Check for disallowed characters to rule out plain and single.
+    for (i = 0; i < string.length; i++) {
+      char = string.charCodeAt(i);
+      if (!isPrintable(char)) {
+        return STYLE_DOUBLE;
+      }
+      plain = plain && isPlainSafe(char);
+    }
+  } else {
+    // Case: block styles permitted.
+    for (i = 0; i < string.length; i++) {
+      char = string.charCodeAt(i);
+      if (char === CHAR_LINE_FEED) {
+        hasLineBreak = true;
+        // Check if any line can be folded.
+        if (shouldTrackWidth) {
+          hasFoldableLine = hasFoldableLine ||
+            // Foldable line = too long, and not more-indented.
+            (i - previousLineBreak - 1 > lineWidth &&
+             string[previousLineBreak + 1] !== ' ');
+          previousLineBreak = i;
+        }
+      } else if (!isPrintable(char)) {
+        return STYLE_DOUBLE;
+      }
+      plain = plain && isPlainSafe(char);
+    }
+    // in case the end is missing a \n
+    hasFoldableLine = hasFoldableLine || (shouldTrackWidth &&
+      (i - previousLineBreak - 1 > lineWidth &&
+       string[previousLineBreak + 1] !== ' '));
+  }
+  // Although every style can represent \n without escaping, prefer block styles
+  // for multiline, since they're more readable and they don't add empty lines.
+  // Also prefer folding a super-long line.
+  if (!hasLineBreak && !hasFoldableLine) {
+    // Strings interpretable as another type have to be quoted;
+    // e.g. the string 'true' vs. the boolean true.
+    return plain && !testAmbiguousType(string)
+      ? STYLE_PLAIN : STYLE_SINGLE;
+  }
+  // Edge case: block indentation indicator can only have one digit.
+  if (string[0] === ' ' && indentPerLevel > 9) {
+    return STYLE_DOUBLE;
+  }
+  // At this point we know block styles are valid.
+  // Prefer literal style unless we want to fold.
+  return hasFoldableLine ? STYLE_FOLDED : STYLE_LITERAL;
+}
+
+// Note: line breaking/folding is implemented for only the folded style.
+// NB. We drop the last trailing newline (if any) of a returned block scalar
+//  since the dumper adds its own newline. This always works:
+//    • No ending newline => unaffected; already using strip "-" chomping.
+//    • Ending newline    => removed then restored.
+//  Importantly, this keeps the "+" chomp indicator from gaining an extra line.
+function writeScalar(state, string, level, iskey) {
+  state.dump = (function () {
+    if (string.length === 0) {
+      return "''";
+    }
+    if (!state.noCompatMode &&
+        DEPRECATED_BOOLEANS_SYNTAX.indexOf(string) !== -1) {
+      return "'" + string + "'";
+    }
+
+    var indent = state.indent * Math.max(1, level); // no 0-indent scalars
+    // As indentation gets deeper, let the width decrease monotonically
+    // to the lower bound min(state.lineWidth, 40).
+    // Note that this implies
+    //  state.lineWidth ≤ 40 + state.indent: width is fixed at the lower bound.
+    //  state.lineWidth > 40 + state.indent: width decreases until the lower bound.
+    // This behaves better than a constant minimum width which disallows narrower options,
+    // or an indent threshold which causes the width to suddenly increase.
+    var lineWidth = state.lineWidth === -1
+      ? -1 : Math.max(Math.min(state.lineWidth, 40), state.lineWidth - indent);
+
+    // Without knowing if keys are implicit/explicit, assume implicit for safety.
+    var singleLineOnly = iskey
+      // No block styles in flow mode.
+      || (state.flowLevel > -1 && level >= state.flowLevel);
+    function testAmbiguity(string) {
+      return testImplicitResolving(state, string);
+    }
+
+    switch (chooseScalarStyle(string, singleLineOnly, state.indent, lineWidth, testAmbiguity)) {
+      case STYLE_PLAIN:
+        return string;
+      case STYLE_SINGLE:
+        return "'" + string.replace(/'/g, "''") + "'";
+      case STYLE_LITERAL:
+        return '|' + blockHeader(string, state.indent)
+          + dropEndingNewline(indentString(string, indent));
+      case STYLE_FOLDED:
+        return '>' + blockHeader(string, state.indent)
+          + dropEndingNewline(indentString(foldString(string, lineWidth), indent));
+      case STYLE_DOUBLE:
+        return '"' + escapeString(string, lineWidth) + '"';
+      default:
+        throw new YAMLException('impossible error: invalid scalar style');
+    }
+  }());
+}
+
+// Pre-conditions: string is valid for a block scalar, 1 <= indentPerLevel <= 9.
+function blockHeader(string, indentPerLevel) {
+  var indentIndicator = (string[0] === ' ') ? String(indentPerLevel) : '';
+
+  // note the special case: the string '\n' counts as a "trailing" empty line.
+  var clip =          string[string.length - 1] === '\n';
+  var keep = clip && (string[string.length - 2] === '\n' || string === '\n');
+  var chomp = keep ? '+' : (clip ? '' : '-');
+
+  return indentIndicator + chomp + '\n';
+}
+
+// (See the note for writeScalar.)
+function dropEndingNewline(string) {
+  return string[string.length - 1] === '\n' ? string.slice(0, -1) : string;
+}
+
+// Note: a long line without a suitable break point will exceed the width limit.
+// Pre-conditions: every char in str isPrintable, str.length > 0, width > 0.
+function foldString(string, width) {
+  // In folded style, $k$ consecutive newlines output as $k+1$ newlines—
+  // unless they're before or after a more-indented line, or at the very
+  // beginning or end, in which case $k$ maps to $k$.
+  // Therefore, parse each chunk as newline(s) followed by a content line.
+  var lineRe = /(\n+)([^\n]*)/g;
+
+  // first line (possibly an empty line)
+  var result = (function () {
+    var nextLF = string.indexOf('\n');
+    nextLF = nextLF !== -1 ? nextLF : string.length;
+    lineRe.lastIndex = nextLF;
+    return foldLine(string.slice(0, nextLF), width);
+  }());
+  // If we haven't reached the first content line yet, don't add an extra \n.
+  var prevMoreIndented = string[0] === '\n' || string[0] === ' ';
+  var moreIndented;
+
+  // rest of the lines
+  var match;
+  while ((match = lineRe.exec(string))) {
+    var prefix = match[1], line = match[2];
+    moreIndented = (line[0] === ' ');
+    result += prefix
+      + (!prevMoreIndented && !moreIndented && line !== ''
+        ? '\n' : '')
+      + foldLine(line, width);
+    prevMoreIndented = moreIndented;
+  }
+
+  return result;
+}
+
+// Greedy line breaking.
+// Picks the longest line under the limit each time,
+// otherwise settles for the shortest line over the limit.
+// NB. More-indented lines *cannot* be folded, as that would add an extra \n.
+function foldLine(line, width) {
+  if (line === '' || line[0] === ' ') return line;
+
+  // Since a more-indented line adds a \n, breaks can't be followed by a space.
+  var breakRe = / [^ ]/g; // note: the match index will always be <= length-2.
+  var match;
+  // start is an inclusive index. end, curr, and next are exclusive.
+  var start = 0, end, curr = 0, next = 0;
+  var result = '';
+
+  // Invariants: 0 <= start <= length-1.
+  //   0 <= curr <= next <= max(0, length-2). curr - start <= width.
+  // Inside the loop:
+  //   A match implies length >= 2, so curr and next are <= length-2.
+  while ((match = breakRe.exec(line))) {
+    next = match.index;
+    // maintain invariant: curr - start <= width
+    if (next - start > width) {
+      end = (curr > start) ? curr : next; // derive end <= length-2
+      result += '\n' + line.slice(start, end);
+      // skip the space that was output as \n
+      start = end + 1;                    // derive start <= length-1
+    }
+    curr = next;
+  }
+
+  // By the invariants, start <= length-1, so there is something left over.
+  // It is either the whole string or a part starting from non-whitespace.
+  result += '\n';
+  // Insert a break if the remainder is too long and there is a break available.
+  if (line.length - start > width && curr > start) {
+    result += line.slice(start, curr) + '\n' + line.slice(curr + 1);
+  } else {
+    result += line.slice(start);
+  }
+
+  return result.slice(1); // drop extra \n joiner
+}
+
+// Escapes a double-quoted string.
+function escapeString(string) {
+  var result = '';
+  var char;
+  var escapeSeq;
+
+  for (var i = 0; i < string.length; i++) {
+    char = string.charCodeAt(i);
+    escapeSeq = ESCAPE_SEQUENCES[char];
+    result += !escapeSeq && isPrintable(char)
+      ? string[i]
+      : escapeSeq || encodeHex(char);
+  }
+
+  return result;
+}
+
+function writeFlowSequence(state, level, object) {
+  var _result = '',
+      _tag    = state.tag,
+      index,
+      length;
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    // Write only valid elements.
+    if (writeNode(state, level, object[index], false, false)) {
+      if (index !== 0) _result += ', ';
+      _result += state.dump;
+    }
+  }
+
+  state.tag = _tag;
+  state.dump = '[' + _result + ']';
+}
+
+function writeBlockSequence(state, level, object, compact) {
+  var _result = '',
+      _tag    = state.tag,
+      index,
+      length;
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    // Write only valid elements.
+    if (writeNode(state, level + 1, object[index], true, true)) {
+      if (!compact || index !== 0) {
+        _result += generateNextLine(state, level);
+      }
+      _result += '- ' + state.dump;
+    }
+  }
+
+  state.tag = _tag;
+  state.dump = _result || '[]'; // Empty sequence if no valid values.
+}
+
+function writeFlowMapping(state, level, object) {
+  var _result       = '',
+      _tag          = state.tag,
+      objectKeyList = Object.keys(object),
+      index,
+      length,
+      objectKey,
+      objectValue,
+      pairBuffer;
+
+  for (index = 0, length = objectKeyList.length; index < length; index += 1) {
+    pairBuffer = '';
+
+    if (index !== 0) pairBuffer += ', ';
+
+    objectKey = objectKeyList[index];
+    objectValue = object[objectKey];
+
+    if (!writeNode(state, level, objectKey, false, false)) {
+      continue; // Skip this pair because of invalid key;
+    }
+
+    if (state.dump.length > 1024) pairBuffer += '? ';
+
+    pairBuffer += state.dump + ': ';
+
+    if (!writeNode(state, level, objectValue, false, false)) {
+      continue; // Skip this pair because of invalid value.
+    }
+
+    pairBuffer += state.dump;
+
+    // Both key and value are valid.
+    _result += pairBuffer;
+  }
+
+  state.tag = _tag;
+  state.dump = '{' + _result + '}';
+}
+
+function writeBlockMapping(state, level, object, compact) {
+  var _result       = '',
+      _tag          = state.tag,
+      objectKeyList = Object.keys(object),
+      index,
+      length,
+      objectKey,
+      objectValue,
+      explicitPair,
+      pairBuffer;
+
+  // Allow sorting keys so that the output file is deterministic
+  if (state.sortKeys === true) {
+    // Default sorting
+    objectKeyList.sort();
+  } else if (typeof state.sortKeys === 'function') {
+    // Custom sort function
+    objectKeyList.sort(state.sortKeys);
+  } else if (state.sortKeys) {
+    // Something is wrong
+    throw new YAMLException('sortKeys must be a boolean or a function');
+  }
+
+  for (index = 0, length = objectKeyList.length; index < length; index += 1) {
+    pairBuffer = '';
+
+    if (!compact || index !== 0) {
+      pairBuffer += generateNextLine(state, level);
+    }
+
+    objectKey = objectKeyList[index];
+    objectValue = object[objectKey];
+
+    if (!writeNode(state, level + 1, objectKey, true, true, true)) {
+      continue; // Skip this pair because of invalid key.
+    }
+
+    explicitPair = (state.tag !== null && state.tag !== '?') ||
+                   (state.dump && state.dump.length > 1024);
+
+    if (explicitPair) {
+      if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
+        pairBuffer += '?';
+      } else {
+        pairBuffer += '? ';
+      }
+    }
+
+    pairBuffer += state.dump;
+
+    if (explicitPair) {
+      pairBuffer += generateNextLine(state, level);
+    }
+
+    if (!writeNode(state, level + 1, objectValue, true, explicitPair)) {
+      continue; // Skip this pair because of invalid value.
+    }
+
+    if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
+      pairBuffer += ':';
+    } else {
+      pairBuffer += ': ';
+    }
+
+    pairBuffer += state.dump;
+
+    // Both key and value are valid.
+    _result += pairBuffer;
+  }
+
+  state.tag = _tag;
+  state.dump = _result || '{}'; // Empty mapping if no valid pairs.
+}
+
+function detectType(state, object, explicit) {
+  var _result, typeList, index, length, type, style;
+
+  typeList = explicit ? state.explicitTypes : state.implicitTypes;
+
+  for (index = 0, length = typeList.length; index < length; index += 1) {
+    type = typeList[index];
+
+    if ((type.instanceOf  || type.predicate) &&
+        (!type.instanceOf || ((typeof object === 'object') && (object instanceof type.instanceOf))) &&
+        (!type.predicate  || type.predicate(object))) {
+
+      state.tag = explicit ? type.tag : '?';
+
+      if (type.represent) {
+        style = state.styleMap[type.tag] || type.defaultStyle;
+
+        if (_toString.call(type.represent) === '[object Function]') {
+          _result = type.represent(object, style);
+        } else if (_hasOwnProperty.call(type.represent, style)) {
+          _result = type.represent[style](object, style);
+        } else {
+          throw new YAMLException('!<' + type.tag + '> tag resolver accepts not "' + style + '" style');
+        }
+
+        state.dump = _result;
+      }
+
+      return true;
+    }
+  }
+
+  return false;
+}
+
+// Serializes `object` and writes it to global `result`.
+// Returns true on success, or false on invalid object.
+//
+function writeNode(state, level, object, block, compact, iskey) {
+  state.tag = null;
+  state.dump = object;
+
+  if (!detectType(state, object, false)) {
+    detectType(state, object, true);
+  }
+
+  var type = _toString.call(state.dump);
+
+  if (block) {
+    block = (state.flowLevel < 0 || state.flowLevel > level);
+  }
+
+  var objectOrArray = type === '[object Object]' || type === '[object Array]',
+      duplicateIndex,
+      duplicate;
+
+  if (objectOrArray) {
+    duplicateIndex = state.duplicates.indexOf(object);
+    duplicate = duplicateIndex !== -1;
+  }
+
+  if ((state.tag !== null && state.tag !== '?') || duplicate || (state.indent !== 2 && level > 0)) {
+    compact = false;
+  }
+
+  if (duplicate && state.usedDuplicates[duplicateIndex]) {
+    state.dump = '*ref_' + duplicateIndex;
+  } else {
+    if (objectOrArray && duplicate && !state.usedDuplicates[duplicateIndex]) {
+      state.usedDuplicates[duplicateIndex] = true;
+    }
+    if (type === '[object Object]') {
+      if (block && (Object.keys(state.dump).length !== 0)) {
+        writeBlockMapping(state, level, state.dump, compact);
+        if (duplicate) {
+          state.dump = '&ref_' + duplicateIndex + state.dump;
+        }
+      } else {
+        writeFlowMapping(state, level, state.dump);
+        if (duplicate) {
+          state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;
+        }
+      }
+    } else if (type === '[object Array]') {
+      if (block && (state.dump.length !== 0)) {
+        writeBlockSequence(state, level, state.dump, compact);
+        if (duplicate) {
+          state.dump = '&ref_' + duplicateIndex + state.dump;
+        }
+      } else {
+        writeFlowSequence(state, level, state.dump);
+        if (duplicate) {
+          state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;
+        }
+      }
+    } else if (type === '[object String]') {
+      if (state.tag !== '?') {
+        writeScalar(state, state.dump, level, iskey);
+      }
+    } else {
+      if (state.skipInvalid) return false;
+      throw new YAMLException('unacceptable kind of an object to dump ' + type);
+    }
+
+    if (state.tag !== null && state.tag !== '?') {
+      state.dump = '!<' + state.tag + '> ' + state.dump;
+    }
+  }
+
+  return true;
+}
+
+function getDuplicateReferences(object, state) {
+  var objects = [],
+      duplicatesIndexes = [],
+      index,
+      length;
+
+  inspectNode(object, objects, duplicatesIndexes);
+
+  for (index = 0, length = duplicatesIndexes.length; index < length; index += 1) {
+    state.duplicates.push(objects[duplicatesIndexes[index]]);
+  }
+  state.usedDuplicates = new Array(length);
+}
+
+function inspectNode(object, objects, duplicatesIndexes) {
+  var objectKeyList,
+      index,
+      length;
+
+  if (object !== null && typeof object === 'object') {
+    index = objects.indexOf(object);
+    if (index !== -1) {
+      if (duplicatesIndexes.indexOf(index) === -1) {
+        duplicatesIndexes.push(index);
+      }
+    } else {
+      objects.push(object);
+
+      if (Array.isArray(object)) {
+        for (index = 0, length = object.length; index < length; index += 1) {
+          inspectNode(object[index], objects, duplicatesIndexes);
+        }
+      } else {
+        objectKeyList = Object.keys(object);
+
+        for (index = 0, length = objectKeyList.length; index < length; index += 1) {
+          inspectNode(object[objectKeyList[index]], objects, duplicatesIndexes);
+        }
+      }
+    }
+  }
+}
+
+function dump(input, options) {
+  options = options || {};
+
+  var state = new State(options);
+
+  if (!state.noRefs) getDuplicateReferences(input, state);
+
+  if (writeNode(state, 0, input, true, true)) return state.dump + '\n';
+
+  return '';
+}
+
+function safeDump(input, options) {
+  return dump(input, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
+}
+
+module.exports.dump     = dump;
+module.exports.safeDump = safeDump;
+
+},{"./common":2,"./exception":4,"./schema/default_full":9,"./schema/default_safe":10}],4:[function(require,module,exports){
+// YAML error class. http://stackoverflow.com/questions/8458984
+//
+'use strict';
+
+function YAMLException(reason, mark) {
+  // Super constructor
+  Error.call(this);
+
+  // Include stack trace in error object
+  if (Error.captureStackTrace) {
+    // Chrome and NodeJS
+    Error.captureStackTrace(this, this.constructor);
+  } else {
+    // FF, IE 10+ and Safari 6+. Fallback for others
+    this.stack = (new Error()).stack || '';
+  }
+
+  this.name = 'YAMLException';
+  this.reason = reason;
+  this.mark = mark;
+  this.message = (this.reason || '(unknown reason)') + (this.mark ? ' ' + this.mark.toString() : '');
+}
+
+
+// Inherit from Error
+YAMLException.prototype = Object.create(Error.prototype);
+YAMLException.prototype.constructor = YAMLException;
+
+
+YAMLException.prototype.toString = function toString(compact) {
+  var result = this.name + ': ';
+
+  result += this.reason || '(unknown reason)';
+
+  if (!compact && this.mark) {
+    result += ' ' + this.mark.toString();
+  }
+
+  return result;
+};
+
+
+module.exports = YAMLException;
+
+},{}],5:[function(require,module,exports){
+'use strict';
+
+/*eslint-disable max-len,no-use-before-define*/
+
+var common              = require('./common');
+var YAMLException       = require('./exception');
+var Mark                = require('./mark');
+var DEFAULT_SAFE_SCHEMA = require('./schema/default_safe');
+var DEFAULT_FULL_SCHEMA = require('./schema/default_full');
+
+
+var _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+
+var CONTEXT_FLOW_IN   = 1;
+var CONTEXT_FLOW_OUT  = 2;
+var CONTEXT_BLOCK_IN  = 3;
+var CONTEXT_BLOCK_OUT = 4;
+
+
+var CHOMPING_CLIP  = 1;
+var CHOMPING_STRIP = 2;
+var CHOMPING_KEEP  = 3;
+
+
+var PATTERN_NON_PRINTABLE         = /[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x84\x86-\x9F\uFFFE\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
+var PATTERN_NON_ASCII_LINE_BREAKS = /[\x85\u2028\u2029]/;
+var PATTERN_FLOW_INDICATORS       = /[,\[\]\{\}]/;
+var PATTERN_TAG_HANDLE            = /^(?:!|!!|![a-z\-]+!)$/i;
+var PATTERN_TAG_URI               = /^(?:!|[^,\[\]\{\}])(?:%[0-9a-f]{2}|[0-9a-z\-#;\/\?:@&=\+\$,_\.!~\*'\(\)\[\]])*$/i;
+
+
+function is_EOL(c) {
+  return (c === 0x0A/* LF */) || (c === 0x0D/* CR */);
+}
+
+function is_WHITE_SPACE(c) {
+  return (c === 0x09/* Tab */) || (c === 0x20/* Space */);
+}
+
+function is_WS_OR_EOL(c) {
+  return (c === 0x09/* Tab */) ||
+         (c === 0x20/* Space */) ||
+         (c === 0x0A/* LF */) ||
+         (c === 0x0D/* CR */);
+}
+
+function is_FLOW_INDICATOR(c) {
+  return c === 0x2C/* , */ ||
+         c === 0x5B/* [ */ ||
+         c === 0x5D/* ] */ ||
+         c === 0x7B/* { */ ||
+         c === 0x7D/* } */;
+}
+
+function fromHexCode(c) {
+  var lc;
+
+  if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {
+    return c - 0x30;
+  }
+
+  /*eslint-disable no-bitwise*/
+  lc = c | 0x20;
+
+  if ((0x61/* a */ <= lc) && (lc <= 0x66/* f */)) {
+    return lc - 0x61 + 10;
+  }
+
+  return -1;
+}
+
+function escapedHexLen(c) {
+  if (c === 0x78/* x */) { return 2; }
+  if (c === 0x75/* u */) { return 4; }
+  if (c === 0x55/* U */) { return 8; }
+  return 0;
+}
+
+function fromDecimalCode(c) {
+  if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {
+    return c - 0x30;
+  }
+
+  return -1;
+}
+
+function simpleEscapeSequence(c) {
+  return (c === 0x30/* 0 */) ? '\x00' :
+        (c === 0x61/* a */) ? '\x07' :
+        (c === 0x62/* b */) ? '\x08' :
+        (c === 0x74/* t */) ? '\x09' :
+        (c === 0x09/* Tab */) ? '\x09' :
+        (c === 0x6E/* n */) ? '\x0A' :
+        (c === 0x76/* v */) ? '\x0B' :
+        (c === 0x66/* f */) ? '\x0C' :
+        (c === 0x72/* r */) ? '\x0D' :
+        (c === 0x65/* e */) ? '\x1B' :
+        (c === 0x20/* Space */) ? ' ' :
+        (c === 0x22/* " */) ? '\x22' :
+        (c === 0x2F/* / */) ? '/' :
+        (c === 0x5C/* \ */) ? '\x5C' :
+        (c === 0x4E/* N */) ? '\x85' :
+        (c === 0x5F/* _ */) ? '\xA0' :
+        (c === 0x4C/* L */) ? '\u2028' :
+        (c === 0x50/* P */) ? '\u2029' : '';
+}
+
+function charFromCodepoint(c) {
+  if (c <= 0xFFFF) {
+    return String.fromCharCode(c);
+  }
+  // Encode UTF-16 surrogate pair
+  // https://en.wikipedia.org/wiki/UTF-16#Code_points_U.2B010000_to_U.2B10FFFF
+  return String.fromCharCode(((c - 0x010000) >> 10) + 0xD800,
+                             ((c - 0x010000) & 0x03FF) + 0xDC00);
+}
+
+var simpleEscapeCheck = new Array(256); // integer, for fast access
+var simpleEscapeMap = new Array(256);
+for (var i = 0; i < 256; i++) {
+  simpleEscapeCheck[i] = simpleEscapeSequence(i) ? 1 : 0;
+  simpleEscapeMap[i] = simpleEscapeSequence(i);
+}
+
+
+function State(input, options) {
+  this.input = input;
+
+  this.filename  = options['filename']  || null;
+  this.schema    = options['schema']    || DEFAULT_FULL_SCHEMA;
+  this.onWarning = options['onWarning'] || null;
+  this.legacy    = options['legacy']    || false;
+  this.json      = options['json']      || false;
+  this.listener  = options['listener']  || null;
+
+  this.implicitTypes = this.schema.compiledImplicit;
+  this.typeMap       = this.schema.compiledTypeMap;
+
+  this.length     = input.length;
+  this.position   = 0;
+  this.line       = 0;
+  this.lineStart  = 0;
+  this.lineIndent = 0;
+
+  this.documents = [];
+
+  /*
+  this.version;
+  this.checkLineBreaks;
+  this.tagMap;
+  this.anchorMap;
+  this.tag;
+  this.anchor;
+  this.kind;
+  this.result;*/
+
+}
+
+
+function generateError(state, message) {
+  return new YAMLException(
+    message,
+    new Mark(state.filename, state.input, state.position, state.line, (state.position - state.lineStart)));
+}
+
+function throwError(state, message) {
+  throw generateError(state, message);
+}
+
+function throwWarning(state, message) {
+  if (state.onWarning) {
+    state.onWarning.call(null, generateError(state, message));
+  }
+}
+
+
+var directiveHandlers = {
+
+  YAML: function handleYamlDirective(state, name, args) {
+
+    var match, major, minor;
+
+    if (state.version !== null) {
+      throwError(state, 'duplication of %YAML directive');
+    }
+
+    if (args.length !== 1) {
+      throwError(state, 'YAML directive accepts exactly one argument');
+    }
+
+    match = /^([0-9]+)\.([0-9]+)$/.exec(args[0]);
+
+    if (match === null) {
+      throwError(state, 'ill-formed argument of the YAML directive');
+    }
+
+    major = parseInt(match[1], 10);
+    minor = parseInt(match[2], 10);
+
+    if (major !== 1) {
+      throwError(state, 'unacceptable YAML version of the document');
+    }
+
+    state.version = args[0];
+    state.checkLineBreaks = (minor < 2);
+
+    if (minor !== 1 && minor !== 2) {
+      throwWarning(state, 'unsupported YAML version of the document');
+    }
+  },
+
+  TAG: function handleTagDirective(state, name, args) {
+
+    var handle, prefix;
+
+    if (args.length !== 2) {
+      throwError(state, 'TAG directive accepts exactly two arguments');
+    }
+
+    handle = args[0];
+    prefix = args[1];
+
+    if (!PATTERN_TAG_HANDLE.test(handle)) {
+      throwError(state, 'ill-formed tag handle (first argument) of the TAG directive');
+    }
+
+    if (_hasOwnProperty.call(state.tagMap, handle)) {
+      throwError(state, 'there is a previously declared suffix for "' + handle + '" tag handle');
+    }
+
+    if (!PATTERN_TAG_URI.test(prefix)) {
+      throwError(state, 'ill-formed tag prefix (second argument) of the TAG directive');
+    }
+
+    state.tagMap[handle] = prefix;
+  }
+};
+
+
+function captureSegment(state, start, end, checkJson) {
+  var _position, _length, _character, _result;
+
+  if (start < end) {
+    _result = state.input.slice(start, end);
+
+    if (checkJson) {
+      for (_position = 0, _length = _result.length;
+           _position < _length;
+           _position += 1) {
+        _character = _result.charCodeAt(_position);
+        if (!(_character === 0x09 ||
+              (0x20 <= _character && _character <= 0x10FFFF))) {
+          throwError(state, 'expected valid JSON character');
+        }
+      }
+    } else if (PATTERN_NON_PRINTABLE.test(_result)) {
+      throwError(state, 'the stream contains non-printable characters');
+    }
+
+    state.result += _result;
+  }
+}
+
+function mergeMappings(state, destination, source, overridableKeys) {
+  var sourceKeys, key, index, quantity;
+
+  if (!common.isObject(source)) {
+    throwError(state, 'cannot merge mappings; the provided source object is unacceptable');
+  }
+
+  sourceKeys = Object.keys(source);
+
+  for (index = 0, quantity = sourceKeys.length; index < quantity; index += 1) {
+    key = sourceKeys[index];
+
+    if (!_hasOwnProperty.call(destination, key)) {
+      destination[key] = source[key];
+      overridableKeys[key] = true;
+    }
+  }
+}
+
+function storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, startLine, startPos) {
+  var index, quantity;
+
+  keyNode = String(keyNode);
+
+  if (_result === null) {
+    _result = {};
+  }
+
+  if (keyTag === 'tag:yaml.org,2002:merge') {
+    if (Array.isArray(valueNode)) {
+      for (index = 0, quantity = valueNode.length; index < quantity; index += 1) {
+        mergeMappings(state, _result, valueNode[index], overridableKeys);
+      }
+    } else {
+      mergeMappings(state, _result, valueNode, overridableKeys);
+    }
+  } else {
+    if (!state.json &&
+        !_hasOwnProperty.call(overridableKeys, keyNode) &&
+        _hasOwnProperty.call(_result, keyNode)) {
+      state.line = startLine || state.line;
+      state.position = startPos || state.position;
+      throwError(state, 'duplicated mapping key');
+    }
+    _result[keyNode] = valueNode;
+    delete overridableKeys[keyNode];
+  }
+
+  return _result;
+}
+
+function readLineBreak(state) {
+  var ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch === 0x0A/* LF */) {
+    state.position++;
+  } else if (ch === 0x0D/* CR */) {
+    state.position++;
+    if (state.input.charCodeAt(state.position) === 0x0A/* LF */) {
+      state.position++;
+    }
+  } else {
+    throwError(state, 'a line break is expected');
+  }
+
+  state.line += 1;
+  state.lineStart = state.position;
+}
+
+function skipSeparationSpace(state, allowComments, checkIndent) {
+  var lineBreaks = 0,
+      ch = state.input.charCodeAt(state.position);
+
+  while (ch !== 0) {
+    while (is_WHITE_SPACE(ch)) {
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    if (allowComments && ch === 0x23/* # */) {
+      do {
+        ch = state.input.charCodeAt(++state.position);
+      } while (ch !== 0x0A/* LF */ && ch !== 0x0D/* CR */ && ch !== 0);
+    }
+
+    if (is_EOL(ch)) {
+      readLineBreak(state);
+
+      ch = state.input.charCodeAt(state.position);
+      lineBreaks++;
+      state.lineIndent = 0;
+
+      while (ch === 0x20/* Space */) {
+        state.lineIndent++;
+        ch = state.input.charCodeAt(++state.position);
+      }
+    } else {
+      break;
+    }
+  }
+
+  if (checkIndent !== -1 && lineBreaks !== 0 && state.lineIndent < checkIndent) {
+    throwWarning(state, 'deficient indentation');
+  }
+
+  return lineBreaks;
+}
+
+function testDocumentSeparator(state) {
+  var _position = state.position,
+      ch;
+
+  ch = state.input.charCodeAt(_position);
+
+  // Condition state.position === state.lineStart is tested
+  // in parent on each call, for efficiency. No needs to test here again.
+  if ((ch === 0x2D/* - */ || ch === 0x2E/* . */) &&
+      ch === state.input.charCodeAt(_position + 1) &&
+      ch === state.input.charCodeAt(_position + 2)) {
+
+    _position += 3;
+
+    ch = state.input.charCodeAt(_position);
+
+    if (ch === 0 || is_WS_OR_EOL(ch)) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+function writeFoldedLines(state, count) {
+  if (count === 1) {
+    state.result += ' ';
+  } else if (count > 1) {
+    state.result += common.repeat('\n', count - 1);
+  }
+}
+
+
+function readPlainScalar(state, nodeIndent, withinFlowCollection) {
+  var preceding,
+      following,
+      captureStart,
+      captureEnd,
+      hasPendingContent,
+      _line,
+      _lineStart,
+      _lineIndent,
+      _kind = state.kind,
+      _result = state.result,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (is_WS_OR_EOL(ch)      ||
+      is_FLOW_INDICATOR(ch) ||
+      ch === 0x23/* # */    ||
+      ch === 0x26/* & */    ||
+      ch === 0x2A/* * */    ||
+      ch === 0x21/* ! */    ||
+      ch === 0x7C/* | */    ||
+      ch === 0x3E/* > */    ||
+      ch === 0x27/* ' */    ||
+      ch === 0x22/* " */    ||
+      ch === 0x25/* % */    ||
+      ch === 0x40/* @ */    ||
+      ch === 0x60/* ` */) {
+    return false;
+  }
+
+  if (ch === 0x3F/* ? */ || ch === 0x2D/* - */) {
+    following = state.input.charCodeAt(state.position + 1);
+
+    if (is_WS_OR_EOL(following) ||
+        withinFlowCollection && is_FLOW_INDICATOR(following)) {
+      return false;
+    }
+  }
+
+  state.kind = 'scalar';
+  state.result = '';
+  captureStart = captureEnd = state.position;
+  hasPendingContent = false;
+
+  while (ch !== 0) {
+    if (ch === 0x3A/* : */) {
+      following = state.input.charCodeAt(state.position + 1);
+
+      if (is_WS_OR_EOL(following) ||
+          withinFlowCollection && is_FLOW_INDICATOR(following)) {
+        break;
+      }
+
+    } else if (ch === 0x23/* # */) {
+      preceding = state.input.charCodeAt(state.position - 1);
+
+      if (is_WS_OR_EOL(preceding)) {
+        break;
+      }
+
+    } else if ((state.position === state.lineStart && testDocumentSeparator(state)) ||
+               withinFlowCollection && is_FLOW_INDICATOR(ch)) {
+      break;
+
+    } else if (is_EOL(ch)) {
+      _line = state.line;
+      _lineStart = state.lineStart;
+      _lineIndent = state.lineIndent;
+      skipSeparationSpace(state, false, -1);
+
+      if (state.lineIndent >= nodeIndent) {
+        hasPendingContent = true;
+        ch = state.input.charCodeAt(state.position);
+        continue;
+      } else {
+        state.position = captureEnd;
+        state.line = _line;
+        state.lineStart = _lineStart;
+        state.lineIndent = _lineIndent;
+        break;
+      }
+    }
+
+    if (hasPendingContent) {
+      captureSegment(state, captureStart, captureEnd, false);
+      writeFoldedLines(state, state.line - _line);
+      captureStart = captureEnd = state.position;
+      hasPendingContent = false;
+    }
+
+    if (!is_WHITE_SPACE(ch)) {
+      captureEnd = state.position + 1;
+    }
+
+    ch = state.input.charCodeAt(++state.position);
+  }
+
+  captureSegment(state, captureStart, captureEnd, false);
+
+  if (state.result) {
+    return true;
+  }
+
+  state.kind = _kind;
+  state.result = _result;
+  return false;
+}
+
+function readSingleQuotedScalar(state, nodeIndent) {
+  var ch,
+      captureStart, captureEnd;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x27/* ' */) {
+    return false;
+  }
+
+  state.kind = 'scalar';
+  state.result = '';
+  state.position++;
+  captureStart = captureEnd = state.position;
+
+  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
+    if (ch === 0x27/* ' */) {
+      captureSegment(state, captureStart, state.position, true);
+      ch = state.input.charCodeAt(++state.position);
+
+      if (ch === 0x27/* ' */) {
+        captureStart = state.position;
+        state.position++;
+        captureEnd = state.position;
+      } else {
+        return true;
+      }
+
+    } else if (is_EOL(ch)) {
+      captureSegment(state, captureStart, captureEnd, true);
+      writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
+      captureStart = captureEnd = state.position;
+
+    } else if (state.position === state.lineStart && testDocumentSeparator(state)) {
+      throwError(state, 'unexpected end of the document within a single quoted scalar');
+
+    } else {
+      state.position++;
+      captureEnd = state.position;
+    }
+  }
+
+  throwError(state, 'unexpected end of the stream within a single quoted scalar');
+}
+
+function readDoubleQuotedScalar(state, nodeIndent) {
+  var captureStart,
+      captureEnd,
+      hexLength,
+      hexResult,
+      tmp,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x22/* " */) {
+    return false;
+  }
+
+  state.kind = 'scalar';
+  state.result = '';
+  state.position++;
+  captureStart = captureEnd = state.position;
+
+  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
+    if (ch === 0x22/* " */) {
+      captureSegment(state, captureStart, state.position, true);
+      state.position++;
+      return true;
+
+    } else if (ch === 0x5C/* \ */) {
+      captureSegment(state, captureStart, state.position, true);
+      ch = state.input.charCodeAt(++state.position);
+
+      if (is_EOL(ch)) {
+        skipSeparationSpace(state, false, nodeIndent);
+
+        // TODO: rework to inline fn with no type cast?
+      } else if (ch < 256 && simpleEscapeCheck[ch]) {
+        state.result += simpleEscapeMap[ch];
+        state.position++;
+
+      } else if ((tmp = escapedHexLen(ch)) > 0) {
+        hexLength = tmp;
+        hexResult = 0;
+
+        for (; hexLength > 0; hexLength--) {
+          ch = state.input.charCodeAt(++state.position);
+
+          if ((tmp = fromHexCode(ch)) >= 0) {
+            hexResult = (hexResult << 4) + tmp;
+
+          } else {
+            throwError(state, 'expected hexadecimal character');
+          }
+        }
+
+        state.result += charFromCodepoint(hexResult);
+
+        state.position++;
+
+      } else {
+        throwError(state, 'unknown escape sequence');
+      }
+
+      captureStart = captureEnd = state.position;
+
+    } else if (is_EOL(ch)) {
+      captureSegment(state, captureStart, captureEnd, true);
+      writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
+      captureStart = captureEnd = state.position;
+
+    } else if (state.position === state.lineStart && testDocumentSeparator(state)) {
+      throwError(state, 'unexpected end of the document within a double quoted scalar');
+
+    } else {
+      state.position++;
+      captureEnd = state.position;
+    }
+  }
+
+  throwError(state, 'unexpected end of the stream within a double quoted scalar');
+}
+
+function readFlowCollection(state, nodeIndent) {
+  var readNext = true,
+      _line,
+      _tag     = state.tag,
+      _result,
+      _anchor  = state.anchor,
+      following,
+      terminator,
+      isPair,
+      isExplicitPair,
+      isMapping,
+      overridableKeys = {},
+      keyNode,
+      keyTag,
+      valueNode,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch === 0x5B/* [ */) {
+    terminator = 0x5D;/* ] */
+    isMapping = false;
+    _result = [];
+  } else if (ch === 0x7B/* { */) {
+    terminator = 0x7D;/* } */
+    isMapping = true;
+    _result = {};
+  } else {
+    return false;
+  }
+
+  if (state.anchor !== null) {
+    state.anchorMap[state.anchor] = _result;
+  }
+
+  ch = state.input.charCodeAt(++state.position);
+
+  while (ch !== 0) {
+    skipSeparationSpace(state, true, nodeIndent);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if (ch === terminator) {
+      state.position++;
+      state.tag = _tag;
+      state.anchor = _anchor;
+      state.kind = isMapping ? 'mapping' : 'sequence';
+      state.result = _result;
+      return true;
+    } else if (!readNext) {
+      throwError(state, 'missed comma between flow collection entries');
+    }
+
+    keyTag = keyNode = valueNode = null;
+    isPair = isExplicitPair = false;
+
+    if (ch === 0x3F/* ? */) {
+      following = state.input.charCodeAt(state.position + 1);
+
+      if (is_WS_OR_EOL(following)) {
+        isPair = isExplicitPair = true;
+        state.position++;
+        skipSeparationSpace(state, true, nodeIndent);
+      }
+    }
+
+    _line = state.line;
+    composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
+    keyTag = state.tag;
+    keyNode = state.result;
+    skipSeparationSpace(state, true, nodeIndent);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if ((isExplicitPair || state.line === _line) && ch === 0x3A/* : */) {
+      isPair = true;
+      ch = state.input.charCodeAt(++state.position);
+      skipSeparationSpace(state, true, nodeIndent);
+      composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
+      valueNode = state.result;
+    }
+
+    if (isMapping) {
+      storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode);
+    } else if (isPair) {
+      _result.push(storeMappingPair(state, null, overridableKeys, keyTag, keyNode, valueNode));
+    } else {
+      _result.push(keyNode);
+    }
+
+    skipSeparationSpace(state, true, nodeIndent);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if (ch === 0x2C/* , */) {
+      readNext = true;
+      ch = state.input.charCodeAt(++state.position);
+    } else {
+      readNext = false;
+    }
+  }
+
+  throwError(state, 'unexpected end of the stream within a flow collection');
+}
+
+function readBlockScalar(state, nodeIndent) {
+  var captureStart,
+      folding,
+      chomping       = CHOMPING_CLIP,
+      didReadContent = false,
+      detectedIndent = false,
+      textIndent     = nodeIndent,
+      emptyLines     = 0,
+      atMoreIndented = false,
+      tmp,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch === 0x7C/* | */) {
+    folding = false;
+  } else if (ch === 0x3E/* > */) {
+    folding = true;
+  } else {
+    return false;
+  }
+
+  state.kind = 'scalar';
+  state.result = '';
+
+  while (ch !== 0) {
+    ch = state.input.charCodeAt(++state.position);
+
+    if (ch === 0x2B/* + */ || ch === 0x2D/* - */) {
+      if (CHOMPING_CLIP === chomping) {
+        chomping = (ch === 0x2B/* + */) ? CHOMPING_KEEP : CHOMPING_STRIP;
+      } else {
+        throwError(state, 'repeat of a chomping mode identifier');
+      }
+
+    } else if ((tmp = fromDecimalCode(ch)) >= 0) {
+      if (tmp === 0) {
+        throwError(state, 'bad explicit indentation width of a block scalar; it cannot be less than one');
+      } else if (!detectedIndent) {
+        textIndent = nodeIndent + tmp - 1;
+        detectedIndent = true;
+      } else {
+        throwError(state, 'repeat of an indentation width identifier');
+      }
+
+    } else {
+      break;
+    }
+  }
+
+  if (is_WHITE_SPACE(ch)) {
+    do { ch = state.input.charCodeAt(++state.position); }
+    while (is_WHITE_SPACE(ch));
+
+    if (ch === 0x23/* # */) {
+      do { ch = state.input.charCodeAt(++state.position); }
+      while (!is_EOL(ch) && (ch !== 0));
+    }
+  }
+
+  while (ch !== 0) {
+    readLineBreak(state);
+    state.lineIndent = 0;
+
+    ch = state.input.charCodeAt(state.position);
+
+    while ((!detectedIndent || state.lineIndent < textIndent) &&
+           (ch === 0x20/* Space */)) {
+      state.lineIndent++;
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    if (!detectedIndent && state.lineIndent > textIndent) {
+      textIndent = state.lineIndent;
+    }
+
+    if (is_EOL(ch)) {
+      emptyLines++;
+      continue;
+    }
+
+    // End of the scalar.
+    if (state.lineIndent < textIndent) {
+
+      // Perform the chomping.
+      if (chomping === CHOMPING_KEEP) {
+        state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
+      } else if (chomping === CHOMPING_CLIP) {
+        if (didReadContent) { // i.e. only if the scalar is not empty.
+          state.result += '\n';
+        }
+      }
+
+      // Break this `while` cycle and go to the funciton's epilogue.
+      break;
+    }
+
+    // Folded style: use fancy rules to handle line breaks.
+    if (folding) {
+
+      // Lines starting with white space characters (more-indented lines) are not folded.
+      if (is_WHITE_SPACE(ch)) {
+        atMoreIndented = true;
+        // except for the first content line (cf. Example 8.1)
+        state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
+
+      // End of more-indented block.
+      } else if (atMoreIndented) {
+        atMoreIndented = false;
+        state.result += common.repeat('\n', emptyLines + 1);
+
+      // Just one line break - perceive as the same line.
+      } else if (emptyLines === 0) {
+        if (didReadContent) { // i.e. only if we have already read some scalar content.
+          state.result += ' ';
+        }
+
+      // Several line breaks - perceive as different lines.
+      } else {
+        state.result += common.repeat('\n', emptyLines);
+      }
+
+    // Literal style: just add exact number of line breaks between content lines.
+    } else {
+      // Keep all line breaks except the header line break.
+      state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
+    }
+
+    didReadContent = true;
+    detectedIndent = true;
+    emptyLines = 0;
+    captureStart = state.position;
+
+    while (!is_EOL(ch) && (ch !== 0)) {
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    captureSegment(state, captureStart, state.position, false);
+  }
+
+  return true;
+}
+
+function readBlockSequence(state, nodeIndent) {
+  var _line,
+      _tag      = state.tag,
+      _anchor   = state.anchor,
+      _result   = [],
+      following,
+      detected  = false,
+      ch;
+
+  if (state.anchor !== null) {
+    state.anchorMap[state.anchor] = _result;
+  }
+
+  ch = state.input.charCodeAt(state.position);
+
+  while (ch !== 0) {
+
+    if (ch !== 0x2D/* - */) {
+      break;
+    }
+
+    following = state.input.charCodeAt(state.position + 1);
+
+    if (!is_WS_OR_EOL(following)) {
+      break;
+    }
+
+    detected = true;
+    state.position++;
+
+    if (skipSeparationSpace(state, true, -1)) {
+      if (state.lineIndent <= nodeIndent) {
+        _result.push(null);
+        ch = state.input.charCodeAt(state.position);
+        continue;
+      }
+    }
+
+    _line = state.line;
+    composeNode(state, nodeIndent, CONTEXT_BLOCK_IN, false, true);
+    _result.push(state.result);
+    skipSeparationSpace(state, true, -1);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if ((state.line === _line || state.lineIndent > nodeIndent) && (ch !== 0)) {
+      throwError(state, 'bad indentation of a sequence entry');
+    } else if (state.lineIndent < nodeIndent) {
+      break;
+    }
+  }
+
+  if (detected) {
+    state.tag = _tag;
+    state.anchor = _anchor;
+    state.kind = 'sequence';
+    state.result = _result;
+    return true;
+  }
+  return false;
+}
+
+function readBlockMapping(state, nodeIndent, flowIndent) {
+  var following,
+      allowCompact,
+      _line,
+      _pos,
+      _tag          = state.tag,
+      _anchor       = state.anchor,
+      _result       = {},
+      overridableKeys = {},
+      keyTag        = null,
+      keyNode       = null,
+      valueNode     = null,
+      atExplicitKey = false,
+      detected      = false,
+      ch;
+
+  if (state.anchor !== null) {
+    state.anchorMap[state.anchor] = _result;
+  }
+
+  ch = state.input.charCodeAt(state.position);
+
+  while (ch !== 0) {
+    following = state.input.charCodeAt(state.position + 1);
+    _line = state.line; // Save the current line.
+    _pos = state.position;
+
+    //
+    // Explicit notation case. There are two separate blocks:
+    // first for the key (denoted by "?") and second for the value (denoted by ":")
+    //
+    if ((ch === 0x3F/* ? */ || ch === 0x3A/* : */) && is_WS_OR_EOL(following)) {
+
+      if (ch === 0x3F/* ? */) {
+        if (atExplicitKey) {
+          storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null);
+          keyTag = keyNode = valueNode = null;
+        }
+
+        detected = true;
+        atExplicitKey = true;
+        allowCompact = true;
+
+      } else if (atExplicitKey) {
+        // i.e. 0x3A/* : */ === character after the explicit key.
+        atExplicitKey = false;
+        allowCompact = true;
+
+      } else {
+        throwError(state, 'incomplete explicit mapping pair; a key node is missed');
+      }
+
+      state.position += 1;
+      ch = following;
+
+    //
+    // Implicit notation case. Flow-style node as the key first, then ":", and the value.
+    //
+    } else if (composeNode(state, flowIndent, CONTEXT_FLOW_OUT, false, true)) {
+
+      if (state.line === _line) {
+        ch = state.input.charCodeAt(state.position);
+
+        while (is_WHITE_SPACE(ch)) {
+          ch = state.input.charCodeAt(++state.position);
+        }
+
+        if (ch === 0x3A/* : */) {
+          ch = state.input.charCodeAt(++state.position);
+
+          if (!is_WS_OR_EOL(ch)) {
+            throwError(state, 'a whitespace character is expected after the key-value separator within a block mapping');
+          }
+
+          if (atExplicitKey) {
+            storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null);
+            keyTag = keyNode = valueNode = null;
+          }
+
+          detected = true;
+          atExplicitKey = false;
+          allowCompact = false;
+          keyTag = state.tag;
+          keyNode = state.result;
+
+        } else if (detected) {
+          throwError(state, 'can not read an implicit mapping pair; a colon is missed');
+
+        } else {
+          state.tag = _tag;
+          state.anchor = _anchor;
+          return true; // Keep the result of `composeNode`.
+        }
+
+      } else if (detected) {
+        throwError(state, 'can not read a block mapping entry; a multiline key may not be an implicit key');
+
+      } else {
+        state.tag = _tag;
+        state.anchor = _anchor;
+        return true; // Keep the result of `composeNode`.
+      }
+
+    } else {
+      break; // Reading is done. Go to the epilogue.
+    }
+
+    //
+    // Common reading code for both explicit and implicit notations.
+    //
+    if (state.line === _line || state.lineIndent > nodeIndent) {
+      if (composeNode(state, nodeIndent, CONTEXT_BLOCK_OUT, true, allowCompact)) {
+        if (atExplicitKey) {
+          keyNode = state.result;
+        } else {
+          valueNode = state.result;
+        }
+      }
+
+      if (!atExplicitKey) {
+        storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, _line, _pos);
+        keyTag = keyNode = valueNode = null;
+      }
+
+      skipSeparationSpace(state, true, -1);
+      ch = state.input.charCodeAt(state.position);
+    }
+
+    if (state.lineIndent > nodeIndent && (ch !== 0)) {
+      throwError(state, 'bad indentation of a mapping entry');
+    } else if (state.lineIndent < nodeIndent) {
+      break;
+    }
+  }
+
+  //
+  // Epilogue.
+  //
+
+  // Special case: last mapping's node contains only the key in explicit notation.
+  if (atExplicitKey) {
+    storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null);
+  }
+
+  // Expose the resulting mapping.
+  if (detected) {
+    state.tag = _tag;
+    state.anchor = _anchor;
+    state.kind = 'mapping';
+    state.result = _result;
+  }
+
+  return detected;
+}
+
+function readTagProperty(state) {
+  var _position,
+      isVerbatim = false,
+      isNamed    = false,
+      tagHandle,
+      tagName,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x21/* ! */) return false;
+
+  if (state.tag !== null) {
+    throwError(state, 'duplication of a tag property');
+  }
+
+  ch = state.input.charCodeAt(++state.position);
+
+  if (ch === 0x3C/* < */) {
+    isVerbatim = true;
+    ch = state.input.charCodeAt(++state.position);
+
+  } else if (ch === 0x21/* ! */) {
+    isNamed = true;
+    tagHandle = '!!';
+    ch = state.input.charCodeAt(++state.position);
+
+  } else {
+    tagHandle = '!';
+  }
+
+  _position = state.position;
+
+  if (isVerbatim) {
+    do { ch = state.input.charCodeAt(++state.position); }
+    while (ch !== 0 && ch !== 0x3E/* > */);
+
+    if (state.position < state.length) {
+      tagName = state.input.slice(_position, state.position);
+      ch = state.input.charCodeAt(++state.position);
+    } else {
+      throwError(state, 'unexpected end of the stream within a verbatim tag');
+    }
+  } else {
+    while (ch !== 0 && !is_WS_OR_EOL(ch)) {
+
+      if (ch === 0x21/* ! */) {
+        if (!isNamed) {
+          tagHandle = state.input.slice(_position - 1, state.position + 1);
+
+          if (!PATTERN_TAG_HANDLE.test(tagHandle)) {
+            throwError(state, 'named tag handle cannot contain such characters');
+          }
+
+          isNamed = true;
+          _position = state.position + 1;
+        } else {
+          throwError(state, 'tag suffix cannot contain exclamation marks');
+        }
+      }
+
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    tagName = state.input.slice(_position, state.position);
+
+    if (PATTERN_FLOW_INDICATORS.test(tagName)) {
+      throwError(state, 'tag suffix cannot contain flow indicator characters');
+    }
+  }
+
+  if (tagName && !PATTERN_TAG_URI.test(tagName)) {
+    throwError(state, 'tag name cannot contain such characters: ' + tagName);
+  }
+
+  if (isVerbatim) {
+    state.tag = tagName;
+
+  } else if (_hasOwnProperty.call(state.tagMap, tagHandle)) {
+    state.tag = state.tagMap[tagHandle] + tagName;
+
+  } else if (tagHandle === '!') {
+    state.tag = '!' + tagName;
+
+  } else if (tagHandle === '!!') {
+    state.tag = 'tag:yaml.org,2002:' + tagName;
+
+  } else {
+    throwError(state, 'undeclared tag handle "' + tagHandle + '"');
+  }
+
+  return true;
+}
+
+function readAnchorProperty(state) {
+  var _position,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x26/* & */) return false;
+
+  if (state.anchor !== null) {
+    throwError(state, 'duplication of an anchor property');
+  }
+
+  ch = state.input.charCodeAt(++state.position);
+  _position = state.position;
+
+  while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {
+    ch = state.input.charCodeAt(++state.position);
+  }
+
+  if (state.position === _position) {
+    throwError(state, 'name of an anchor node must contain at least one character');
+  }
+
+  state.anchor = state.input.slice(_position, state.position);
+  return true;
+}
+
+function readAlias(state) {
+  var _position, alias,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x2A/* * */) return false;
+
+  ch = state.input.charCodeAt(++state.position);
+  _position = state.position;
+
+  while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {
+    ch = state.input.charCodeAt(++state.position);
+  }
+
+  if (state.position === _position) {
+    throwError(state, 'name of an alias node must contain at least one character');
+  }
+
+  alias = state.input.slice(_position, state.position);
+
+  if (!state.anchorMap.hasOwnProperty(alias)) {
+    throwError(state, 'unidentified alias "' + alias + '"');
+  }
+
+  state.result = state.anchorMap[alias];
+  skipSeparationSpace(state, true, -1);
+  return true;
+}
+
+function composeNode(state, parentIndent, nodeContext, allowToSeek, allowCompact) {
+  var allowBlockStyles,
+      allowBlockScalars,
+      allowBlockCollections,
+      indentStatus = 1, // 1: this>parent, 0: this=parent, -1: this<parent
+      atNewLine  = false,
+      hasContent = false,
+      typeIndex,
+      typeQuantity,
+      type,
+      flowIndent,
+      blockIndent;
+
+  if (state.listener !== null) {
+    state.listener('open', state);
+  }
+
+  state.tag    = null;
+  state.anchor = null;
+  state.kind   = null;
+  state.result = null;
+
+  allowBlockStyles = allowBlockScalars = allowBlockCollections =
+    CONTEXT_BLOCK_OUT === nodeContext ||
+    CONTEXT_BLOCK_IN  === nodeContext;
+
+  if (allowToSeek) {
+    if (skipSeparationSpace(state, true, -1)) {
+      atNewLine = true;
+
+      if (state.lineIndent > parentIndent) {
+        indentStatus = 1;
+      } else if (state.lineIndent === parentIndent) {
+        indentStatus = 0;
+      } else if (state.lineIndent < parentIndent) {
+        indentStatus = -1;
+      }
+    }
+  }
+
+  if (indentStatus === 1) {
+    while (readTagProperty(state) || readAnchorProperty(state)) {
+      if (skipSeparationSpace(state, true, -1)) {
+        atNewLine = true;
+        allowBlockCollections = allowBlockStyles;
+
+        if (state.lineIndent > parentIndent) {
+          indentStatus = 1;
+        } else if (state.lineIndent === parentIndent) {
+          indentStatus = 0;
+        } else if (state.lineIndent < parentIndent) {
+          indentStatus = -1;
+        }
+      } else {
+        allowBlockCollections = false;
+      }
+    }
+  }
+
+  if (allowBlockCollections) {
+    allowBlockCollections = atNewLine || allowCompact;
+  }
+
+  if (indentStatus === 1 || CONTEXT_BLOCK_OUT === nodeContext) {
+    if (CONTEXT_FLOW_IN === nodeContext || CONTEXT_FLOW_OUT === nodeContext) {
+      flowIndent = parentIndent;
+    } else {
+      flowIndent = parentIndent + 1;
+    }
+
+    blockIndent = state.position - state.lineStart;
+
+    if (indentStatus === 1) {
+      if (allowBlockCollections &&
+          (readBlockSequence(state, blockIndent) ||
+           readBlockMapping(state, blockIndent, flowIndent)) ||
+          readFlowCollection(state, flowIndent)) {
+        hasContent = true;
+      } else {
+        if ((allowBlockScalars && readBlockScalar(state, flowIndent)) ||
+            readSingleQuotedScalar(state, flowIndent) ||
+            readDoubleQuotedScalar(state, flowIndent)) {
+          hasContent = true;
+
+        } else if (readAlias(state)) {
+          hasContent = true;
+
+          if (state.tag !== null || state.anchor !== null) {
+            throwError(state, 'alias node should not have any properties');
+          }
+
+        } else if (readPlainScalar(state, flowIndent, CONTEXT_FLOW_IN === nodeContext)) {
+          hasContent = true;
+
+          if (state.tag === null) {
+            state.tag = '?';
+          }
+        }
+
+        if (state.anchor !== null) {
+          state.anchorMap[state.anchor] = state.result;
+        }
+      }
+    } else if (indentStatus === 0) {
+      // Special case: block sequences are allowed to have same indentation level as the parent.
+      // http://www.yaml.org/spec/1.2/spec.html#id2799784
+      hasContent = allowBlockCollections && readBlockSequence(state, blockIndent);
+    }
+  }
+
+  if (state.tag !== null && state.tag !== '!') {
+    if (state.tag === '?') {
+      for (typeIndex = 0, typeQuantity = state.implicitTypes.length;
+           typeIndex < typeQuantity;
+           typeIndex += 1) {
+        type = state.implicitTypes[typeIndex];
+
+        // Implicit resolving is not allowed for non-scalar types, and '?'
+        // non-specific tag is only assigned to plain scalars. So, it isn't
+        // needed to check for 'kind' conformity.
+
+        if (type.resolve(state.result)) { // `state.result` updated in resolver if matched
+          state.result = type.construct(state.result);
+          state.tag = type.tag;
+          if (state.anchor !== null) {
+            state.anchorMap[state.anchor] = state.result;
+          }
+          break;
+        }
+      }
+    } else if (_hasOwnProperty.call(state.typeMap[state.kind || 'fallback'], state.tag)) {
+      type = state.typeMap[state.kind || 'fallback'][state.tag];
+
+      if (state.result !== null && type.kind !== state.kind) {
+        throwError(state, 'unacceptable node kind for !<' + state.tag + '> tag; it should be "' + type.kind + '", not "' + state.kind + '"');
+      }
+
+      if (!type.resolve(state.result)) { // `state.result` updated in resolver if matched
+        throwError(state, 'cannot resolve a node with !<' + state.tag + '> explicit tag');
+      } else {
+        state.result = type.construct(state.result);
+        if (state.anchor !== null) {
+          state.anchorMap[state.anchor] = state.result;
+        }
+      }
+    } else {
+      throwError(state, 'unknown tag !<' + state.tag + '>');
+    }
+  }
+
+  if (state.listener !== null) {
+    state.listener('close', state);
+  }
+  return state.tag !== null ||  state.anchor !== null || hasContent;
+}
+
+function readDocument(state) {
+  var documentStart = state.position,
+      _position,
+      directiveName,
+      directiveArgs,
+      hasDirectives = false,
+      ch;
+
+  state.version = null;
+  state.checkLineBreaks = state.legacy;
+  state.tagMap = {};
+  state.anchorMap = {};
+
+  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
+    skipSeparationSpace(state, true, -1);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if (state.lineIndent > 0 || ch !== 0x25/* % */) {
+      break;
+    }
+
+    hasDirectives = true;
+    ch = state.input.charCodeAt(++state.position);
+    _position = state.position;
+
+    while (ch !== 0 && !is_WS_OR_EOL(ch)) {
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    directiveName = state.input.slice(_position, state.position);
+    directiveArgs = [];
+
+    if (directiveName.length < 1) {
+      throwError(state, 'directive name must not be less than one character in length');
+    }
+
+    while (ch !== 0) {
+      while (is_WHITE_SPACE(ch)) {
+        ch = state.input.charCodeAt(++state.position);
+      }
+
+      if (ch === 0x23/* # */) {
+        do { ch = state.input.charCodeAt(++state.position); }
+        while (ch !== 0 && !is_EOL(ch));
+        break;
+      }
+
+      if (is_EOL(ch)) break;
+
+      _position = state.position;
+
+      while (ch !== 0 && !is_WS_OR_EOL(ch)) {
+        ch = state.input.charCodeAt(++state.position);
+      }
+
+      directiveArgs.push(state.input.slice(_position, state.position));
+    }
+
+    if (ch !== 0) readLineBreak(state);
+
+    if (_hasOwnProperty.call(directiveHandlers, directiveName)) {
+      directiveHandlers[directiveName](state, directiveName, directiveArgs);
+    } else {
+      throwWarning(state, 'unknown document directive "' + directiveName + '"');
+    }
+  }
+
+  skipSeparationSpace(state, true, -1);
+
+  if (state.lineIndent === 0 &&
+      state.input.charCodeAt(state.position)     === 0x2D/* - */ &&
+      state.input.charCodeAt(state.position + 1) === 0x2D/* - */ &&
+      state.input.charCodeAt(state.position + 2) === 0x2D/* - */) {
+    state.position += 3;
+    skipSeparationSpace(state, true, -1);
+
+  } else if (hasDirectives) {
+    throwError(state, 'directives end mark is expected');
+  }
+
+  composeNode(state, state.lineIndent - 1, CONTEXT_BLOCK_OUT, false, true);
+  skipSeparationSpace(state, true, -1);
+
+  if (state.checkLineBreaks &&
+      PATTERN_NON_ASCII_LINE_BREAKS.test(state.input.slice(documentStart, state.position))) {
+    throwWarning(state, 'non-ASCII line breaks are interpreted as content');
+  }
+
+  state.documents.push(state.result);
+
+  if (state.position === state.lineStart && testDocumentSeparator(state)) {
+
+    if (state.input.charCodeAt(state.position) === 0x2E/* . */) {
+      state.position += 3;
+      skipSeparationSpace(state, true, -1);
+    }
+    return;
+  }
+
+  if (state.position < (state.length - 1)) {
+    throwError(state, 'end of the stream or a document separator is expected');
+  } else {
+    return;
+  }
+}
+
+
+function loadDocuments(input, options) {
+  input = String(input);
+  options = options || {};
+
+  if (input.length !== 0) {
+
+    // Add tailing `\n` if not exists
+    if (input.charCodeAt(input.length - 1) !== 0x0A/* LF */ &&
+        input.charCodeAt(input.length - 1) !== 0x0D/* CR */) {
+      input += '\n';
+    }
+
+    // Strip BOM
+    if (input.charCodeAt(0) === 0xFEFF) {
+      input = input.slice(1);
+    }
+  }
+
+  var state = new State(input, options);
+
+  // Use 0 as string terminator. That significantly simplifies bounds check.
+  state.input += '\0';
+
+  while (state.input.charCodeAt(state.position) === 0x20/* Space */) {
+    state.lineIndent += 1;
+    state.position += 1;
+  }
+
+  while (state.position < (state.length - 1)) {
+    readDocument(state);
+  }
+
+  return state.documents;
+}
+
+
+function loadAll(input, iterator, options) {
+  var documents = loadDocuments(input, options), index, length;
+
+  for (index = 0, length = documents.length; index < length; index += 1) {
+    iterator(documents[index]);
+  }
+}
+
+
+function load(input, options) {
+  var documents = loadDocuments(input, options);
+
+  if (documents.length === 0) {
+    /*eslint-disable no-undefined*/
+    return undefined;
+  } else if (documents.length === 1) {
+    return documents[0];
+  }
+  throw new YAMLException('expected a single document in the stream, but found more');
+}
+
+
+function safeLoadAll(input, output, options) {
+  loadAll(input, output, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
+}
+
+
+function safeLoad(input, options) {
+  return load(input, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
+}
+
+
+module.exports.loadAll     = loadAll;
+module.exports.load        = load;
+module.exports.safeLoadAll = safeLoadAll;
+module.exports.safeLoad    = safeLoad;
+
+},{"./common":2,"./exception":4,"./mark":6,"./schema/default_full":9,"./schema/default_safe":10}],6:[function(require,module,exports){
+'use strict';
+
+
+var common = require('./common');
+
+
+function Mark(name, buffer, position, line, column) {
+  this.name     = name;
+  this.buffer   = buffer;
+  this.position = position;
+  this.line     = line;
+  this.column   = column;
+}
+
+
+Mark.prototype.getSnippet = function getSnippet(indent, maxLength) {
+  var head, start, tail, end, snippet;
+
+  if (!this.buffer) return null;
+
+  indent = indent || 4;
+  maxLength = maxLength || 75;
+
+  head = '';
+  start = this.position;
+
+  while (start > 0 && '\x00\r\n\x85\u2028\u2029'.indexOf(this.buffer.charAt(start - 1)) === -1) {
+    start -= 1;
+    if (this.position - start > (maxLength / 2 - 1)) {
+      head = ' ... ';
+      start += 5;
+      break;
+    }
+  }
+
+  tail = '';
+  end = this.position;
+
+  while (end < this.buffer.length && '\x00\r\n\x85\u2028\u2029'.indexOf(this.buffer.charAt(end)) === -1) {
+    end += 1;
+    if (end - this.position > (maxLength / 2 - 1)) {
+      tail = ' ... ';
+      end -= 5;
+      break;
+    }
+  }
+
+  snippet = this.buffer.slice(start, end);
+
+  return common.repeat(' ', indent) + head + snippet + tail + '\n' +
+         common.repeat(' ', indent + this.position - start + head.length) + '^';
+};
+
+
+Mark.prototype.toString = function toString(compact) {
+  var snippet, where = '';
+
+  if (this.name) {
+    where += 'in "' + this.name + '" ';
+  }
+
+  where += 'at line ' + (this.line + 1) + ', column ' + (this.column + 1);
+
+  if (!compact) {
+    snippet = this.getSnippet();
+
+    if (snippet) {
+      where += ':\n' + snippet;
+    }
+  }
+
+  return where;
+};
+
+
+module.exports = Mark;
+
+},{"./common":2}],7:[function(require,module,exports){
+'use strict';
+
+/*eslint-disable max-len*/
+
+var common        = require('./common');
+var YAMLException = require('./exception');
+var Type          = require('./type');
+
+
+function compileList(schema, name, result) {
+  var exclude = [];
+
+  schema.include.forEach(function (includedSchema) {
+    result = compileList(includedSchema, name, result);
+  });
+
+  schema[name].forEach(function (currentType) {
+    result.forEach(function (previousType, previousIndex) {
+      if (previousType.tag === currentType.tag && previousType.kind === currentType.kind) {
+        exclude.push(previousIndex);
+      }
+    });
+
+    result.push(currentType);
+  });
+
+  return result.filter(function (type, index) {
+    return exclude.indexOf(index) === -1;
+  });
+}
+
+
+function compileMap(/* lists... */) {
+  var result = {
+        scalar: {},
+        sequence: {},
+        mapping: {},
+        fallback: {}
+      }, index, length;
+
+  function collectType(type) {
+    result[type.kind][type.tag] = result['fallback'][type.tag] = type;
+  }
+
+  for (index = 0, length = arguments.length; index < length; index += 1) {
+    arguments[index].forEach(collectType);
+  }
+  return result;
+}
+
+
+function Schema(definition) {
+  this.include  = definition.include  || [];
+  this.implicit = definition.implicit || [];
+  this.explicit = definition.explicit || [];
+
+  this.implicit.forEach(function (type) {
+    if (type.loadKind && type.loadKind !== 'scalar') {
+      throw new YAMLException('There is a non-scalar type in the implicit list of a schema. Implicit resolving of such types is not supported.');
+    }
+  });
+
+  this.compiledImplicit = compileList(this, 'implicit', []);
+  this.compiledExplicit = compileList(this, 'explicit', []);
+  this.compiledTypeMap  = compileMap(this.compiledImplicit, this.compiledExplicit);
+}
+
+
+Schema.DEFAULT = null;
+
+
+Schema.create = function createSchema() {
+  var schemas, types;
+
+  switch (arguments.length) {
+    case 1:
+      schemas = Schema.DEFAULT;
+      types = arguments[0];
+      break;
+
+    case 2:
+      schemas = arguments[0];
+      types = arguments[1];
+      break;
+
+    default:
+      throw new YAMLException('Wrong number of arguments for Schema.create function');
+  }
+
+  schemas = common.toArray(schemas);
+  types = common.toArray(types);
+
+  if (!schemas.every(function (schema) { return schema instanceof Schema; })) {
+    throw new YAMLException('Specified list of super schemas (or a single Schema object) contains a non-Schema object.');
+  }
+
+  if (!types.every(function (type) { return type instanceof Type; })) {
+    throw new YAMLException('Specified list of YAML types (or a single Type object) contains a non-Type object.');
+  }
+
+  return new Schema({
+    include: schemas,
+    explicit: types
+  });
+};
+
+
+module.exports = Schema;
+
+},{"./common":2,"./exception":4,"./type":13}],8:[function(require,module,exports){
+// Standard YAML's Core schema.
+// http://www.yaml.org/spec/1.2/spec.html#id2804923
+//
+// NOTE: JS-YAML does not support schema-specific tag resolution restrictions.
+// So, Core schema has no distinctions from JSON schema is JS-YAML.
+
+
+'use strict';
+
+
+var Schema = require('../schema');
+
+
+module.exports = new Schema({
+  include: [
+    require('./json')
+  ]
+});
+
+},{"../schema":7,"./json":12}],9:[function(require,module,exports){
+// JS-YAML's default schema for `load` function.
+// It is not described in the YAML specification.
+//
+// This schema is based on JS-YAML's default safe schema and includes
+// JavaScript-specific types: !!js/undefined, !!js/regexp and !!js/function.
+//
+// Also this schema is used as default base schema at `Schema.create` function.
+
+
+'use strict';
+
+
+var Schema = require('../schema');
+
+
+module.exports = Schema.DEFAULT = new Schema({
+  include: [
+    require('./default_safe')
+  ],
+  explicit: [
+    require('../type/js/undefined'),
+    require('../type/js/regexp'),
+    require('../type/js/function')
+  ]
+});
+
+},{"../schema":7,"../type/js/function":18,"../type/js/regexp":19,"../type/js/undefined":20,"./default_safe":10}],10:[function(require,module,exports){
+// JS-YAML's default schema for `safeLoad` function.
+// It is not described in the YAML specification.
+//
+// This schema is based on standard YAML's Core schema and includes most of
+// extra types described at YAML tag repository. (http://yaml.org/type/)
+
+
+'use strict';
+
+
+var Schema = require('../schema');
+
+
+module.exports = new Schema({
+  include: [
+    require('./core')
+  ],
+  implicit: [
+    require('../type/timestamp'),
+    require('../type/merge')
+  ],
+  explicit: [
+    require('../type/binary'),
+    require('../type/omap'),
+    require('../type/pairs'),
+    require('../type/set')
+  ]
+});
+
+},{"../schema":7,"../type/binary":14,"../type/merge":22,"../type/omap":24,"../type/pairs":25,"../type/set":27,"../type/timestamp":29,"./core":8}],11:[function(require,module,exports){
+// Standard YAML's Failsafe schema.
+// http://www.yaml.org/spec/1.2/spec.html#id2802346
+
+
+'use strict';
+
+
+var Schema = require('../schema');
+
+
+module.exports = new Schema({
+  explicit: [
+    require('../type/str'),
+    require('../type/seq'),
+    require('../type/map')
+  ]
+});
+
+},{"../schema":7,"../type/map":21,"../type/seq":26,"../type/str":28}],12:[function(require,module,exports){
+// Standard YAML's JSON schema.
+// http://www.yaml.org/spec/1.2/spec.html#id2803231
+//
+// NOTE: JS-YAML does not support schema-specific tag resolution restrictions.
+// So, this schema is not such strict as defined in the YAML specification.
+// It allows numbers in binary notaion, use `Null` and `NULL` as `null`, etc.
+
+
+'use strict';
+
+
+var Schema = require('../schema');
+
+
+module.exports = new Schema({
+  include: [
+    require('./failsafe')
+  ],
+  implicit: [
+    require('../type/null'),
+    require('../type/bool'),
+    require('../type/int'),
+    require('../type/float')
+  ]
+});
+
+},{"../schema":7,"../type/bool":15,"../type/float":16,"../type/int":17,"../type/null":23,"./failsafe":11}],13:[function(require,module,exports){
+'use strict';
+
+var YAMLException = require('./exception');
+
+var TYPE_CONSTRUCTOR_OPTIONS = [
+  'kind',
+  'resolve',
+  'construct',
+  'instanceOf',
+  'predicate',
+  'represent',
+  'defaultStyle',
+  'styleAliases'
+];
+
+var YAML_NODE_KINDS = [
+  'scalar',
+  'sequence',
+  'mapping'
+];
+
+function compileStyleAliases(map) {
+  var result = {};
+
+  if (map !== null) {
+    Object.keys(map).forEach(function (style) {
+      map[style].forEach(function (alias) {
+        result[String(alias)] = style;
+      });
+    });
+  }
+
+  return result;
+}
+
+function Type(tag, options) {
+  options = options || {};
+
+  Object.keys(options).forEach(function (name) {
+    if (TYPE_CONSTRUCTOR_OPTIONS.indexOf(name) === -1) {
+      throw new YAMLException('Unknown option "' + name + '" is met in definition of "' + tag + '" YAML type.');
+    }
+  });
+
+  // TODO: Add tag format check.
+  this.tag          = tag;
+  this.kind         = options['kind']         || null;
+  this.resolve      = options['resolve']      || function () { return true; };
+  this.construct    = options['construct']    || function (data) { return data; };
+  this.instanceOf   = options['instanceOf']   || null;
+  this.predicate    = options['predicate']    || null;
+  this.represent    = options['represent']    || null;
+  this.defaultStyle = options['defaultStyle'] || null;
+  this.styleAliases = compileStyleAliases(options['styleAliases'] || null);
+
+  if (YAML_NODE_KINDS.indexOf(this.kind) === -1) {
+    throw new YAMLException('Unknown kind "' + this.kind + '" is specified for "' + tag + '" YAML type.');
+  }
+}
+
+module.exports = Type;
+
+},{"./exception":4}],14:[function(require,module,exports){
+'use strict';
+
+/*eslint-disable no-bitwise*/
+
+var NodeBuffer;
+
+try {
+  // A trick for browserified version, to not include `Buffer` shim
+  var _require = require;
+  NodeBuffer = _require('buffer').Buffer;
+} catch (__) {}
+
+var Type       = require('../type');
+
+
+// [ 64, 65, 66 ] -> [ padding, CR, LF ]
+var BASE64_MAP = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=\n\r';
+
+
+function resolveYamlBinary(data) {
+  if (data === null) return false;
+
+  var code, idx, bitlen = 0, max = data.length, map = BASE64_MAP;
+
+  // Convert one by one.
+  for (idx = 0; idx < max; idx++) {
+    code = map.indexOf(data.charAt(idx));
+
+    // Skip CR/LF
+    if (code > 64) continue;
+
+    // Fail on illegal characters
+    if (code < 0) return false;
+
+    bitlen += 6;
+  }
+
+  // If there are any bits left, source was corrupted
+  return (bitlen % 8) === 0;
+}
+
+function constructYamlBinary(data) {
+  var idx, tailbits,
+      input = data.replace(/[\r\n=]/g, ''), // remove CR/LF & padding to simplify scan
+      max = input.length,
+      map = BASE64_MAP,
+      bits = 0,
+      result = [];
+
+  // Collect by 6*4 bits (3 bytes)
+
+  for (idx = 0; idx < max; idx++) {
+    if ((idx % 4 === 0) && idx) {
+      result.push((bits >> 16) & 0xFF);
+      result.push((bits >> 8) & 0xFF);
+      result.push(bits & 0xFF);
+    }
+
+    bits = (bits << 6) | map.indexOf(input.charAt(idx));
+  }
+
+  // Dump tail
+
+  tailbits = (max % 4) * 6;
+
+  if (tailbits === 0) {
+    result.push((bits >> 16) & 0xFF);
+    result.push((bits >> 8) & 0xFF);
+    result.push(bits & 0xFF);
+  } else if (tailbits === 18) {
+    result.push((bits >> 10) & 0xFF);
+    result.push((bits >> 2) & 0xFF);
+  } else if (tailbits === 12) {
+    result.push((bits >> 4) & 0xFF);
+  }
+
+  // Wrap into Buffer for NodeJS and leave Array for browser
+  if (NodeBuffer) {
+    // Support node 6.+ Buffer API when available
+    return NodeBuffer.from ? NodeBuffer.from(result) : new NodeBuffer(result);
+  }
+
+  return result;
+}
+
+function representYamlBinary(object /*, style*/) {
+  var result = '', bits = 0, idx, tail,
+      max = object.length,
+      map = BASE64_MAP;
+
+  // Convert every three bytes to 4 ASCII characters.
+
+  for (idx = 0; idx < max; idx++) {
+    if ((idx % 3 === 0) && idx) {
+      result += map[(bits >> 18) & 0x3F];
+      result += map[(bits >> 12) & 0x3F];
+      result += map[(bits >> 6) & 0x3F];
+      result += map[bits & 0x3F];
+    }
+
+    bits = (bits << 8) + object[idx];
+  }
+
+  // Dump tail
+
+  tail = max % 3;
+
+  if (tail === 0) {
+    result += map[(bits >> 18) & 0x3F];
+    result += map[(bits >> 12) & 0x3F];
+    result += map[(bits >> 6) & 0x3F];
+    result += map[bits & 0x3F];
+  } else if (tail === 2) {
+    result += map[(bits >> 10) & 0x3F];
+    result += map[(bits >> 4) & 0x3F];
+    result += map[(bits << 2) & 0x3F];
+    result += map[64];
+  } else if (tail === 1) {
+    result += map[(bits >> 2) & 0x3F];
+    result += map[(bits << 4) & 0x3F];
+    result += map[64];
+    result += map[64];
+  }
+
+  return result;
+}
+
+function isBinary(object) {
+  return NodeBuffer && NodeBuffer.isBuffer(object);
+}
+
+module.exports = new Type('tag:yaml.org,2002:binary', {
+  kind: 'scalar',
+  resolve: resolveYamlBinary,
+  construct: constructYamlBinary,
+  predicate: isBinary,
+  represent: representYamlBinary
+});
+
+},{"../type":13}],15:[function(require,module,exports){
+'use strict';
+
+var Type = require('../type');
+
+function resolveYamlBoolean(data) {
+  if (data === null) return false;
+
+  var max = data.length;
+
+  return (max === 4 && (data === 'true' || data === 'True' || data === 'TRUE')) ||
+         (max === 5 && (data === 'false' || data === 'False' || data === 'FALSE'));
+}
+
+function constructYamlBoolean(data) {
+  return data === 'true' ||
+         data === 'True' ||
+         data === 'TRUE';
+}
+
+function isBoolean(object) {
+  return Object.prototype.toString.call(object) === '[object Boolean]';
+}
+
+module.exports = new Type('tag:yaml.org,2002:bool', {
+  kind: 'scalar',
+  resolve: resolveYamlBoolean,
+  construct: constructYamlBoolean,
+  predicate: isBoolean,
+  represent: {
+    lowercase: function (object) { return object ? 'true' : 'false'; },
+    uppercase: function (object) { return object ? 'TRUE' : 'FALSE'; },
+    camelcase: function (object) { return object ? 'True' : 'False'; }
+  },
+  defaultStyle: 'lowercase'
+});
+
+},{"../type":13}],16:[function(require,module,exports){
+'use strict';
+
+var common = require('../common');
+var Type   = require('../type');
+
+var YAML_FLOAT_PATTERN = new RegExp(
+  // 2.5e4, 2.5 and integers
+  '^(?:[-+]?(?:0|[1-9][0-9_]*)(?:\\.[0-9_]*)?(?:[eE][-+]?[0-9]+)?' +
+  // .2e4, .2
+  // special case, seems not from spec
+  '|\\.[0-9_]+(?:[eE][-+]?[0-9]+)?' +
+  // 20:59
+  '|[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+\\.[0-9_]*' +
+  // .inf
+  '|[-+]?\\.(?:inf|Inf|INF)' +
+  // .nan
+  '|\\.(?:nan|NaN|NAN))$');
+
+function resolveYamlFloat(data) {
+  if (data === null) return false;
+
+  if (!YAML_FLOAT_PATTERN.test(data) ||
+      // Quick hack to not allow integers end with `_`
+      // Probably should update regexp & check speed
+      data[data.length - 1] === '_') {
+    return false;
+  }
+
+  return true;
+}
+
+function constructYamlFloat(data) {
+  var value, sign, base, digits;
+
+  value  = data.replace(/_/g, '').toLowerCase();
+  sign   = value[0] === '-' ? -1 : 1;
+  digits = [];
+
+  if ('+-'.indexOf(value[0]) >= 0) {
+    value = value.slice(1);
+  }
+
+  if (value === '.inf') {
+    return (sign === 1) ? Number.POSITIVE_INFINITY : Number.NEGATIVE_INFINITY;
+
+  } else if (value === '.nan') {
+    return NaN;
+
+  } else if (value.indexOf(':') >= 0) {
+    value.split(':').forEach(function (v) {
+      digits.unshift(parseFloat(v, 10));
+    });
+
+    value = 0.0;
+    base = 1;
+
+    digits.forEach(function (d) {
+      value += d * base;
+      base *= 60;
+    });
+
+    return sign * value;
+
+  }
+  return sign * parseFloat(value, 10);
+}
+
+
+var SCIENTIFIC_WITHOUT_DOT = /^[-+]?[0-9]+e/;
+
+function representYamlFloat(object, style) {
+  var res;
+
+  if (isNaN(object)) {
+    switch (style) {
+      case 'lowercase': return '.nan';
+      case 'uppercase': return '.NAN';
+      case 'camelcase': return '.NaN';
+    }
+  } else if (Number.POSITIVE_INFINITY === object) {
+    switch (style) {
+      case 'lowercase': return '.inf';
+      case 'uppercase': return '.INF';
+      case 'camelcase': return '.Inf';
+    }
+  } else if (Number.NEGATIVE_INFINITY === object) {
+    switch (style) {
+      case 'lowercase': return '-.inf';
+      case 'uppercase': return '-.INF';
+      case 'camelcase': return '-.Inf';
+    }
+  } else if (common.isNegativeZero(object)) {
+    return '-0.0';
+  }
+
+  res = object.toString(10);
+
+  // JS stringifier can build scientific format without dots: 5e-100,
+  // while YAML requres dot: 5.e-100. Fix it with simple hack
+
+  return SCIENTIFIC_WITHOUT_DOT.test(res) ? res.replace('e', '.e') : res;
+}
+
+function isFloat(object) {
+  return (Object.prototype.toString.call(object) === '[object Number]') &&
+         (object % 1 !== 0 || common.isNegativeZero(object));
+}
+
+module.exports = new Type('tag:yaml.org,2002:float', {
+  kind: 'scalar',
+  resolve: resolveYamlFloat,
+  construct: constructYamlFloat,
+  predicate: isFloat,
+  represent: representYamlFloat,
+  defaultStyle: 'lowercase'
+});
+
+},{"../common":2,"../type":13}],17:[function(require,module,exports){
+'use strict';
+
+var common = require('../common');
+var Type   = require('../type');
+
+function isHexCode(c) {
+  return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) ||
+         ((0x41/* A */ <= c) && (c <= 0x46/* F */)) ||
+         ((0x61/* a */ <= c) && (c <= 0x66/* f */));
+}
+
+function isOctCode(c) {
+  return ((0x30/* 0 */ <= c) && (c <= 0x37/* 7 */));
+}
+
+function isDecCode(c) {
+  return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */));
+}
+
+function resolveYamlInteger(data) {
+  if (data === null) return false;
+
+  var max = data.length,
+      index = 0,
+      hasDigits = false,
+      ch;
+
+  if (!max) return false;
+
+  ch = data[index];
+
+  // sign
+  if (ch === '-' || ch === '+') {
+    ch = data[++index];
+  }
+
+  if (ch === '0') {
+    // 0
+    if (index + 1 === max) return true;
+    ch = data[++index];
+
+    // base 2, base 8, base 16
+
+    if (ch === 'b') {
+      // base 2
+      index++;
+
+      for (; index < max; index++) {
+        ch = data[index];
+        if (ch === '_') continue;
+        if (ch !== '0' && ch !== '1') return false;
+        hasDigits = true;
+      }
+      return hasDigits && ch !== '_';
+    }
+
+
+    if (ch === 'x') {
+      // base 16
+      index++;
+
+      for (; index < max; index++) {
+        ch = data[index];
+        if (ch === '_') continue;
+        if (!isHexCode(data.charCodeAt(index))) return false;
+        hasDigits = true;
+      }
+      return hasDigits && ch !== '_';
+    }
+
+    // base 8
+    for (; index < max; index++) {
+      ch = data[index];
+      if (ch === '_') continue;
+      if (!isOctCode(data.charCodeAt(index))) return false;
+      hasDigits = true;
+    }
+    return hasDigits && ch !== '_';
+  }
+
+  // base 10 (except 0) or base 60
+
+  // value should not start with `_`;
+  if (ch === '_') return false;
+
+  for (; index < max; index++) {
+    ch = data[index];
+    if (ch === '_') continue;
+    if (ch === ':') break;
+    if (!isDecCode(data.charCodeAt(index))) {
+      return false;
+    }
+    hasDigits = true;
+  }
+
+  // Should have digits and should not end with `_`
+  if (!hasDigits || ch === '_') return false;
+
+  // if !base60 - done;
+  if (ch !== ':') return true;
+
+  // base60 almost not used, no needs to optimize
+  return /^(:[0-5]?[0-9])+$/.test(data.slice(index));
+}
+
+function constructYamlInteger(data) {
+  var value = data, sign = 1, ch, base, digits = [];
+
+  if (value.indexOf('_') !== -1) {
+    value = value.replace(/_/g, '');
+  }
+
+  ch = value[0];
+
+  if (ch === '-' || ch === '+') {
+    if (ch === '-') sign = -1;
+    value = value.slice(1);
+    ch = value[0];
+  }
+
+  if (value === '0') return 0;
+
+  if (ch === '0') {
+    if (value[1] === 'b') return sign * parseInt(value.slice(2), 2);
+    if (value[1] === 'x') return sign * parseInt(value, 16);
+    return sign * parseInt(value, 8);
+  }
+
+  if (value.indexOf(':') !== -1) {
+    value.split(':').forEach(function (v) {
+      digits.unshift(parseInt(v, 10));
+    });
+
+    value = 0;
+    base = 1;
+
+    digits.forEach(function (d) {
+      value += (d * base);
+      base *= 60;
+    });
+
+    return sign * value;
+
+  }
+
+  return sign * parseInt(value, 10);
+}
+
+function isInteger(object) {
+  return (Object.prototype.toString.call(object)) === '[object Number]' &&
+         (object % 1 === 0 && !common.isNegativeZero(object));
+}
+
+module.exports = new Type('tag:yaml.org,2002:int', {
+  kind: 'scalar',
+  resolve: resolveYamlInteger,
+  construct: constructYamlInteger,
+  predicate: isInteger,
+  represent: {
+    binary:      function (object) { return '0b' + object.toString(2); },
+    octal:       function (object) { return '0'  + object.toString(8); },
+    decimal:     function (object) { return        object.toString(10); },
+    hexadecimal: function (object) { return '0x' + object.toString(16).toUpperCase(); }
+  },
+  defaultStyle: 'decimal',
+  styleAliases: {
+    binary:      [ 2,  'bin' ],
+    octal:       [ 8,  'oct' ],
+    decimal:     [ 10, 'dec' ],
+    hexadecimal: [ 16, 'hex' ]
+  }
+});
+
+},{"../common":2,"../type":13}],18:[function(require,module,exports){
+'use strict';
+
+var esprima;
+
+// Browserified version does not have esprima
+//
+// 1. For node.js just require module as deps
+// 2. For browser try to require mudule via external AMD system.
+//    If not found - try to fallback to window.esprima. If not
+//    found too - then fail to parse.
+//
+try {
+  // workaround to exclude package from browserify list.
+  var _require = require;
+  esprima = _require('esprima');
+} catch (_) {
+  /*global window */
+  if (typeof window !== 'undefined') esprima = window.esprima;
+}
+
+var Type = require('../../type');
+
+function resolveJavascriptFunction(data) {
+  if (data === null) return false;
+
+  try {
+    var source = '(' + data + ')',
+        ast    = esprima.parse(source, { range: true });
+
+    if (ast.type                    !== 'Program'             ||
+        ast.body.length             !== 1                     ||
+        ast.body[0].type            !== 'ExpressionStatement' ||
+        ast.body[0].expression.type !== 'FunctionExpression') {
+      return false;
+    }
+
+    return true;
+  } catch (err) {
+    return false;
+  }
+}
+
+function constructJavascriptFunction(data) {
+  /*jslint evil:true*/
+
+  var source = '(' + data + ')',
+      ast    = esprima.parse(source, { range: true }),
+      params = [],
+      body;
+
+  if (ast.type                    !== 'Program'             ||
+      ast.body.length             !== 1                     ||
+      ast.body[0].type            !== 'ExpressionStatement' ||
+      ast.body[0].expression.type !== 'FunctionExpression') {
+    throw new Error('Failed to resolve function');
+  }
+
+  ast.body[0].expression.params.forEach(function (param) {
+    params.push(param.name);
+  });
+
+  body = ast.body[0].expression.body.range;
+
+  // Esprima's ranges include the first '{' and the last '}' characters on
+  // function expressions. So cut them out.
+  /*eslint-disable no-new-func*/
+  return new Function(params, source.slice(body[0] + 1, body[1] - 1));
+}
+
+function representJavascriptFunction(object /*, style*/) {
+  return object.toString();
+}
+
+function isFunction(object) {
+  return Object.prototype.toString.call(object) === '[object Function]';
+}
+
+module.exports = new Type('tag:yaml.org,2002:js/function', {
+  kind: 'scalar',
+  resolve: resolveJavascriptFunction,
+  construct: constructJavascriptFunction,
+  predicate: isFunction,
+  represent: representJavascriptFunction
+});
+
+},{"../../type":13}],19:[function(require,module,exports){
+'use strict';
+
+var Type = require('../../type');
+
+function resolveJavascriptRegExp(data) {
+  if (data === null) return false;
+  if (data.length === 0) return false;
+
+  var regexp = data,
+      tail   = /\/([gim]*)$/.exec(data),
+      modifiers = '';
+
+  // if regexp starts with '/' it can have modifiers and must be properly closed
+  // `/foo/gim` - modifiers tail can be maximum 3 chars
+  if (regexp[0] === '/') {
+    if (tail) modifiers = tail[1];
+
+    if (modifiers.length > 3) return false;
+    // if expression starts with /, is should be properly terminated
+    if (regexp[regexp.length - modifiers.length - 1] !== '/') return false;
+  }
+
+  return true;
+}
+
+function constructJavascriptRegExp(data) {
+  var regexp = data,
+      tail   = /\/([gim]*)$/.exec(data),
+      modifiers = '';
+
+  // `/foo/gim` - tail can be maximum 4 chars
+  if (regexp[0] === '/') {
+    if (tail) modifiers = tail[1];
+    regexp = regexp.slice(1, regexp.length - modifiers.length - 1);
+  }
+
+  return new RegExp(regexp, modifiers);
+}
+
+function representJavascriptRegExp(object /*, style*/) {
+  var result = '/' + object.source + '/';
+
+  if (object.global) result += 'g';
+  if (object.multiline) result += 'm';
+  if (object.ignoreCase) result += 'i';
+
+  return result;
+}
+
+function isRegExp(object) {
+  return Object.prototype.toString.call(object) === '[object RegExp]';
+}
+
+module.exports = new Type('tag:yaml.org,2002:js/regexp', {
+  kind: 'scalar',
+  resolve: resolveJavascriptRegExp,
+  construct: constructJavascriptRegExp,
+  predicate: isRegExp,
+  represent: representJavascriptRegExp
+});
+
+},{"../../type":13}],20:[function(require,module,exports){
+'use strict';
+
+var Type = require('../../type');
+
+function resolveJavascriptUndefined() {
+  return true;
+}
+
+function constructJavascriptUndefined() {
+  /*eslint-disable no-undefined*/
+  return undefined;
+}
+
+function representJavascriptUndefined() {
+  return '';
+}
+
+function isUndefined(object) {
+  return typeof object === 'undefined';
+}
+
+module.exports = new Type('tag:yaml.org,2002:js/undefined', {
+  kind: 'scalar',
+  resolve: resolveJavascriptUndefined,
+  construct: constructJavascriptUndefined,
+  predicate: isUndefined,
+  represent: representJavascriptUndefined
+});
+
+},{"../../type":13}],21:[function(require,module,exports){
+'use strict';
+
+var Type = require('../type');
+
+module.exports = new Type('tag:yaml.org,2002:map', {
+  kind: 'mapping',
+  construct: function (data) { return data !== null ? data : {}; }
+});
+
+},{"../type":13}],22:[function(require,module,exports){
+'use strict';
+
+var Type = require('../type');
+
+function resolveYamlMerge(data) {
+  return data === '<<' || data === null;
+}
+
+module.exports = new Type('tag:yaml.org,2002:merge', {
+  kind: 'scalar',
+  resolve: resolveYamlMerge
+});
+
+},{"../type":13}],23:[function(require,module,exports){
+'use strict';
+
+var Type = require('../type');
+
+function resolveYamlNull(data) {
+  if (data === null) return true;
+
+  var max = data.length;
+
+  return (max === 1 && data === '~') ||
+         (max === 4 && (data === 'null' || data === 'Null' || data === 'NULL'));
+}
+
+function constructYamlNull() {
+  return null;
+}
+
+function isNull(object) {
+  return object === null;
+}
+
+module.exports = new Type('tag:yaml.org,2002:null', {
+  kind: 'scalar',
+  resolve: resolveYamlNull,
+  construct: constructYamlNull,
+  predicate: isNull,
+  represent: {
+    canonical: function () { return '~';    },
+    lowercase: function () { return 'null'; },
+    uppercase: function () { return 'NULL'; },
+    camelcase: function () { return 'Null'; }
+  },
+  defaultStyle: 'lowercase'
+});
+
+},{"../type":13}],24:[function(require,module,exports){
+'use strict';
+
+var Type = require('../type');
+
+var _hasOwnProperty = Object.prototype.hasOwnProperty;
+var _toString       = Object.prototype.toString;
+
+function resolveYamlOmap(data) {
+  if (data === null) return true;
+
+  var objectKeys = [], index, length, pair, pairKey, pairHasKey,
+      object = data;
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    pair = object[index];
+    pairHasKey = false;
+
+    if (_toString.call(pair) !== '[object Object]') return false;
+
+    for (pairKey in pair) {
+      if (_hasOwnProperty.call(pair, pairKey)) {
+        if (!pairHasKey) pairHasKey = true;
+        else return false;
+      }
+    }
+
+    if (!pairHasKey) return false;
+
+    if (objectKeys.indexOf(pairKey) === -1) objectKeys.push(pairKey);
+    else return false;
+  }
+
+  return true;
+}
+
+function constructYamlOmap(data) {
+  return data !== null ? data : [];
+}
+
+module.exports = new Type('tag:yaml.org,2002:omap', {
+  kind: 'sequence',
+  resolve: resolveYamlOmap,
+  construct: constructYamlOmap
+});
+
+},{"../type":13}],25:[function(require,module,exports){
+'use strict';
+
+var Type = require('../type');
+
+var _toString = Object.prototype.toString;
+
+function resolveYamlPairs(data) {
+  if (data === null) return true;
+
+  var index, length, pair, keys, result,
+      object = data;
+
+  result = new Array(object.length);
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    pair = object[index];
+
+    if (_toString.call(pair) !== '[object Object]') return false;
+
+    keys = Object.keys(pair);
+
+    if (keys.length !== 1) return false;
+
+    result[index] = [ keys[0], pair[keys[0]] ];
+  }
+
+  return true;
+}
+
+function constructYamlPairs(data) {
+  if (data === null) return [];
+
+  var index, length, pair, keys, result,
+      object = data;
+
+  result = new Array(object.length);
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    pair = object[index];
+
+    keys = Object.keys(pair);
+
+    result[index] = [ keys[0], pair[keys[0]] ];
+  }
+
+  return result;
+}
+
+module.exports = new Type('tag:yaml.org,2002:pairs', {
+  kind: 'sequence',
+  resolve: resolveYamlPairs,
+  construct: constructYamlPairs
+});
+
+},{"../type":13}],26:[function(require,module,exports){
+'use strict';
+
+var Type = require('../type');
+
+module.exports = new Type('tag:yaml.org,2002:seq', {
+  kind: 'sequence',
+  construct: function (data) { return data !== null ? data : []; }
+});
+
+},{"../type":13}],27:[function(require,module,exports){
+'use strict';
+
+var Type = require('../type');
+
+var _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+function resolveYamlSet(data) {
+  if (data === null) return true;
+
+  var key, object = data;
+
+  for (key in object) {
+    if (_hasOwnProperty.call(object, key)) {
+      if (object[key] !== null) return false;
+    }
+  }
+
+  return true;
+}
+
+function constructYamlSet(data) {
+  return data !== null ? data : {};
+}
+
+module.exports = new Type('tag:yaml.org,2002:set', {
+  kind: 'mapping',
+  resolve: resolveYamlSet,
+  construct: constructYamlSet
+});
+
+},{"../type":13}],28:[function(require,module,exports){
+'use strict';
+
+var Type = require('../type');
+
+module.exports = new Type('tag:yaml.org,2002:str', {
+  kind: 'scalar',
+  construct: function (data) { return data !== null ? data : ''; }
+});
+
+},{"../type":13}],29:[function(require,module,exports){
+'use strict';
+
+var Type = require('../type');
+
+var YAML_DATE_REGEXP = new RegExp(
+  '^([0-9][0-9][0-9][0-9])'          + // [1] year
+  '-([0-9][0-9])'                    + // [2] month
+  '-([0-9][0-9])$');                   // [3] day
+
+var YAML_TIMESTAMP_REGEXP = new RegExp(
+  '^([0-9][0-9][0-9][0-9])'          + // [1] year
+  '-([0-9][0-9]?)'                   + // [2] month
+  '-([0-9][0-9]?)'                   + // [3] day
+  '(?:[Tt]|[ \\t]+)'                 + // ...
+  '([0-9][0-9]?)'                    + // [4] hour
+  ':([0-9][0-9])'                    + // [5] minute
+  ':([0-9][0-9])'                    + // [6] second
+  '(?:\\.([0-9]*))?'                 + // [7] fraction
+  '(?:[ \\t]*(Z|([-+])([0-9][0-9]?)' + // [8] tz [9] tz_sign [10] tz_hour
+  '(?::([0-9][0-9]))?))?$');           // [11] tz_minute
+
+function resolveYamlTimestamp(data) {
+  if (data === null) return false;
+  if (YAML_DATE_REGEXP.exec(data) !== null) return true;
+  if (YAML_TIMESTAMP_REGEXP.exec(data) !== null) return true;
+  return false;
+}
+
+function constructYamlTimestamp(data) {
+  var match, year, month, day, hour, minute, second, fraction = 0,
+      delta = null, tz_hour, tz_minute, date;
+
+  match = YAML_DATE_REGEXP.exec(data);
+  if (match === null) match = YAML_TIMESTAMP_REGEXP.exec(data);
+
+  if (match === null) throw new Error('Date resolve error');
+
+  // match: [1] year [2] month [3] day
+
+  year = +(match[1]);
+  month = +(match[2]) - 1; // JS month starts with 0
+  day = +(match[3]);
+
+  if (!match[4]) { // no hour
+    return new Date(Date.UTC(year, month, day));
+  }
+
+  // match: [4] hour [5] minute [6] second [7] fraction
+
+  hour = +(match[4]);
+  minute = +(match[5]);
+  second = +(match[6]);
+
+  if (match[7]) {
+    fraction = match[7].slice(0, 3);
+    while (fraction.length < 3) { // milli-seconds
+      fraction += '0';
+    }
+    fraction = +fraction;
+  }
+
+  // match: [8] tz [9] tz_sign [10] tz_hour [11] tz_minute
+
+  if (match[9]) {
+    tz_hour = +(match[10]);
+    tz_minute = +(match[11] || 0);
+    delta = (tz_hour * 60 + tz_minute) * 60000; // delta in mili-seconds
+    if (match[9] === '-') delta = -delta;
+  }
+
+  date = new Date(Date.UTC(year, month, day, hour, minute, second, fraction));
+
+  if (delta) date.setTime(date.getTime() - delta);
+
+  return date;
+}
+
+function representYamlTimestamp(object /*, style*/) {
+  return object.toISOString();
+}
+
+module.exports = new Type('tag:yaml.org,2002:timestamp', {
+  kind: 'scalar',
+  resolve: resolveYamlTimestamp,
+  construct: constructYamlTimestamp,
+  instanceOf: Date,
+  represent: representYamlTimestamp
+});
+
+},{"../type":13}],"/":[function(require,module,exports){
+'use strict';
+
+
+var yaml = require('./lib/js-yaml.js');
+
+
+module.exports = yaml;
+
+},{"./lib/js-yaml.js":1}]},{},[])("/")
+});
\ No newline at end of file
diff --git a/node_modules/js-yaml/dist/js-yaml.min.js b/node_modules/js-yaml/dist/js-yaml.min.js
new file mode 100644
index 000000000..30f9be7d5
--- /dev/null
+++ b/node_modules/js-yaml/dist/js-yaml.min.js
@@ -0,0 +1,3 @@
+/* js-yaml 3.8.3 https://github.com/nodeca/js-yaml */
+!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var t;t="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,t.jsyaml=e()}}(function(){return function e(t,n,i){function r(a,s){if(!n[a]){if(!t[a]){var c="function"==typeof require&&require;if(!s&&c)return c(a,!0);if(o)return o(a,!0);var u=new Error("Cannot find module '"+a+"'");throw u.code="MODULE_NOT_FOUND",u}var l=n[a]={exports:{}};t[a][0].call(l.exports,function(e){var n=t[a][1][e];return r(n||e)},l,l.exports,e,t,n,i)}return n[a].exports}for(var o="function"==typeof require&&require,a=0;a<i.length;a++)r(i[a]);return r}({1:[function(e,t,n){"use strict";function i(e){return function(){throw new Error("Function "+e+" is deprecated and cannot be used.")}}var r=e("./js-yaml/loader"),o=e("./js-yaml/dumper");t.exports.Type=e("./js-yaml/type"),t.exports.Schema=e("./js-yaml/schema"),t.exports.FAILSAFE_SCHEMA=e("./js-yaml/schema/failsafe"),t.exports.JSON_SCHEMA=e("./js-yaml/schema/json"),t.exports.CORE_SCHEMA=e("./js-yaml/schema/core"),t.exports.DEFAULT_SAFE_SCHEMA=e("./js-yaml/schema/default_safe"),t.exports.DEFAULT_FULL_SCHEMA=e("./js-yaml/schema/default_full"),t.exports.load=r.load,t.exports.loadAll=r.loadAll,t.exports.safeLoad=r.safeLoad,t.exports.safeLoadAll=r.safeLoadAll,t.exports.dump=o.dump,t.exports.safeDump=o.safeDump,t.exports.YAMLException=e("./js-yaml/exception"),t.exports.MINIMAL_SCHEMA=e("./js-yaml/schema/failsafe"),t.exports.SAFE_SCHEMA=e("./js-yaml/schema/default_safe"),t.exports.DEFAULT_SCHEMA=e("./js-yaml/schema/default_full"),t.exports.scan=i("scan"),t.exports.parse=i("parse"),t.exports.compose=i("compose"),t.exports.addConstructor=i("addConstructor")},{"./js-yaml/dumper":3,"./js-yaml/exception":4,"./js-yaml/loader":5,"./js-yaml/schema":7,"./js-yaml/schema/core":8,"./js-yaml/schema/default_full":9,"./js-yaml/schema/default_safe":10,"./js-yaml/schema/failsafe":11,"./js-yaml/schema/json":12,"./js-yaml/type":13}],2:[function(e,t,n){"use strict";function i(e){return void 0===e||null===e}function r(e){return"object"==typeof e&&null!==e}function o(e){return Array.isArray(e)?e:i(e)?[]:[e]}function a(e,t){var n,i,r,o;if(t)for(o=Object.keys(t),n=0,i=o.length;n<i;n+=1)r=o[n],e[r]=t[r];return e}function s(e,t){var n,i="";for(n=0;n<t;n+=1)i+=e;return i}function c(e){return 0===e&&Number.NEGATIVE_INFINITY===1/e}t.exports.isNothing=i,t.exports.isObject=r,t.exports.toArray=o,t.exports.repeat=s,t.exports.isNegativeZero=c,t.exports.extend=a},{}],3:[function(e,t,n){"use strict";function i(e,t){var n,i,r,o,a,s,c;if(null===t)return{};for(n={},i=Object.keys(t),r=0,o=i.length;r<o;r+=1)a=i[r],s=String(t[a]),"!!"===a.slice(0,2)&&(a="tag:yaml.org,2002:"+a.slice(2)),c=e.compiledTypeMap.fallback[a],c&&L.call(c.styleAliases,s)&&(s=c.styleAliases[s]),n[a]=s;return n}function r(e){var t,n,i;if(t=e.toString(16).toUpperCase(),e<=255)n="x",i=2;else if(e<=65535)n="u",i=4;else{if(!(e<=4294967295))throw new _("code point within a string may not be greater than 0xFFFFFFFF");n="U",i=8}return"\\"+n+F.repeat("0",i-t.length)+t}function o(e){this.schema=e.schema||N,this.indent=Math.max(1,e.indent||2),this.skipInvalid=e.skipInvalid||!1,this.flowLevel=F.isNothing(e.flowLevel)?-1:e.flowLevel,this.styleMap=i(this.schema,e.styles||null),this.sortKeys=e.sortKeys||!1,this.lineWidth=e.lineWidth||80,this.noRefs=e.noRefs||!1,this.noCompatMode=e.noCompatMode||!1,this.implicitTypes=this.schema.compiledImplicit,this.explicitTypes=this.schema.compiledExplicit,this.tag=null,this.result="",this.duplicates=[],this.usedDuplicates=null}function a(e,t){for(var n,i=F.repeat(" ",t),r=0,o=-1,a="",s=e.length;r<s;)o=e.indexOf("\n",r),-1===o?(n=e.slice(r),r=s):(n=e.slice(r,o+1),r=o+1),n.length&&"\n"!==n&&(a+=i),a+=n;return a}function s(e,t){return"\n"+F.repeat(" ",e.indent*t)}function c(e,t){var n,i,r;for(n=0,i=e.implicitTypes.length;n<i;n+=1)if(r=e.implicitTypes[n],r.resolve(t))return!0;return!1}function u(e){return e===q||e===D}function l(e){return 32<=e&&e<=126||161<=e&&e<=55295&&8232!==e&&8233!==e||57344<=e&&e<=65533&&65279!==e||65536<=e&&e<=1114111}function p(e){return l(e)&&65279!==e&&e!==H&&e!==Q&&e!==X&&e!==te&&e!==ie&&e!==V&&e!==P}function f(e){return l(e)&&65279!==e&&!u(e)&&e!==G&&e!==z&&e!==V&&e!==H&&e!==Q&&e!==X&&e!==te&&e!==ie&&e!==P&&e!==B&&e!==$&&e!==Y&&e!==ne&&e!==Z&&e!==K&&e!==R&&e!==W&&e!==J&&e!==ee}function d(e,t,n,i,r){var o,a,s=!1,c=!1,d=-1!==i,h=-1,m=f(e.charCodeAt(0))&&!u(e.charCodeAt(e.length-1));if(t)for(o=0;o<e.length;o++){if(a=e.charCodeAt(o),!l(a))return le;m=m&&p(a)}else{for(o=0;o<e.length;o++){if((a=e.charCodeAt(o))===U)s=!0,d&&(c=c||o-h-1>i&&" "!==e[h+1],h=o);else if(!l(a))return le;m=m&&p(a)}c=c||d&&o-h-1>i&&" "!==e[h+1]}return s||c?" 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Implicit resolving of such types is not supported.")}),this.compiledImplicit=i(this,"implicit",[]),this.compiledExplicit=i(this,"explicit",[]),this.compiledTypeMap=r(this.compiledImplicit,this.compiledExplicit)}var a=e("./common"),s=e("./exception"),c=e("./type");o.DEFAULT=null,o.create=function(){var e,t;switch(arguments.length){case 1:e=o.DEFAULT,t=arguments[0];break;case 2:e=arguments[0],t=arguments[1];break;default:throw new s("Wrong number of arguments for Schema.create function")}if(e=a.toArray(e),t=a.toArray(t),!e.every(function(e){return e instanceof o}))throw new s("Specified list of super schemas (or a single Schema object) contains a non-Schema object.");if(!t.every(function(e){return e instanceof c}))throw new s("Specified list of YAML types (or a single Type object) contains a non-Type object.");return new o({include:e,explicit:t})},t.exports=o},{"./common":2,"./exception":4,"./type":13}],8:[function(e,t,n){"use strict";var i=e("../schema");t.exports=new i({include:[e("./json")]})},{"../schema":7,"./json":12}],9:[function(e,t,n){"use strict";var i=e("../schema");t.exports=i.DEFAULT=new i({include:[e("./default_safe")],explicit:[e("../type/js/undefined"),e("../type/js/regexp"),e("../type/js/function")]})},{"../schema":7,"../type/js/function":18,"../type/js/regexp":19,"../type/js/undefined":20,"./default_safe":10}],10:[function(e,t,n){"use strict";var i=e("../schema");t.exports=new i({include:[e("./core")],implicit:[e("../type/timestamp"),e("../type/merge")],explicit:[e("../type/binary"),e("../type/omap"),e("../type/pairs"),e("../type/set")]})},{"../schema":7,"../type/binary":14,"../type/merge":22,"../type/omap":24,"../type/pairs":25,"../type/set":27,"../type/timestamp":29,"./core":8}],11:[function(e,t,n){"use strict";var i=e("../schema");t.exports=new i({explicit:[e("../type/str"),e("../type/seq"),e("../type/map")]})},{"../schema":7,"../type/map":21,"../type/seq":26,"../type/str":28}],12:[function(e,t,n){"use strict";var i=e("../schema");t.exports=new i({include:[e("./failsafe")],implicit:[e("../type/null"),e("../type/bool"),e("../type/int"),e("../type/float")]})},{"../schema":7,"../type/bool":15,"../type/float":16,"../type/int":17,"../type/null":23,"./failsafe":11}],13:[function(e,t,n){"use strict";function i(e){var t={};return null!==e&&Object.keys(e).forEach(function(n){e[n].forEach(function(e){t[String(e)]=n})}),t}function r(e,t){if(t=t||{},Object.keys(t).forEach(function(t){if(-1===a.indexOf(t))throw new o('Unknown option "'+t+'" is met in definition of "'+e+'" YAML type.')}),this.tag=e,this.kind=t.kind||null,this.resolve=t.resolve||function(){return!0},this.construct=t.construct||function(e){return e},this.instanceOf=t.instanceOf||null,this.predicate=t.predicate||null,this.represent=t.represent||null,this.defaultStyle=t.defaultStyle||null,this.styleAliases=i(t.styleAliases||null),-1===s.indexOf(this.kind))throw new o('Unknown kind "'+this.kind+'" is specified for "'+e+'" YAML type.')}var o=e("./exception"),a=["kind","resolve","construct","instanceOf","predicate","represent","defaultStyle","styleAliases"],s=["scalar","sequence","mapping"];t.exports=r},{"./exception":4}],14:[function(e,t,n){"use strict";function i(e){if(null===e)return!1;var t,n,i=0,r=e.length,o=u;for(n=0;n<r;n++)if(!((t=o.indexOf(e.charAt(n)))>64)){if(t<0)return!1;i+=6}return i%8==0}function r(e){var t,n,i=e.replace(/[\r\n=]/g,""),r=i.length,o=u,a=0,c=[];for(t=0;t<r;t++)t%4==0&&t&&(c.push(a>>16&255),c.push(a>>8&255),c.push(255&a)),a=a<<6|o.indexOf(i.charAt(t));return n=r%4*6,0===n?(c.push(a>>16&255),c.push(a>>8&255),c.push(255&a)):18===n?(c.push(a>>10&255),c.push(a>>2&255)):12===n&&c.push(a>>4&255),s?s.from?s.from(c):new s(c):c}function o(e){var t,n,i="",r=0,o=e.length,a=u;for(t=0;t<o;t++)t%3==0&&t&&(i+=a[r>>18&63],i+=a[r>>12&63],i+=a[r>>6&63],i+=a[63&r]),r=(r<<8)+e[t];return n=o%3,0===n?(i+=a[r>>18&63],
+i+=a[r>>12&63],i+=a[r>>6&63],i+=a[63&r]):2===n?(i+=a[r>>10&63],i+=a[r>>4&63],i+=a[r<<2&63],i+=a[64]):1===n&&(i+=a[r>>2&63],i+=a[r<<4&63],i+=a[64],i+=a[64]),i}function a(e){return s&&s.isBuffer(e)}var s;try{s=e("buffer").Buffer}catch(e){}var c=e("../type"),u="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=\n\r";t.exports=new c("tag:yaml.org,2002:binary",{kind:"scalar",resolve:i,construct:r,predicate:a,represent:o})},{"../type":13}],15:[function(e,t,n){"use strict";function i(e){if(null===e)return!1;var t=e.length;return 4===t&&("true"===e||"True"===e||"TRUE"===e)||5===t&&("false"===e||"False"===e||"FALSE"===e)}function r(e){return"true"===e||"True"===e||"TRUE"===e}function o(e){return"[object Boolean]"===Object.prototype.toString.call(e)}var a=e("../type");t.exports=new a("tag:yaml.org,2002:bool",{kind:"scalar",resolve:i,construct:r,predicate:o,represent:{lowercase:function(e){return e?"true":"false"},uppercase:function(e){return e?"TRUE":"FALSE"},camelcase:function(e){return e?"True":"False"}},defaultStyle:"lowercase"})},{"../type":13}],16:[function(e,t,n){"use strict";function i(e){return null!==e&&!(!u.test(e)||"_"===e[e.length-1])}function r(e){var t,n,i,r;return t=e.replace(/_/g,"").toLowerCase(),n="-"===t[0]?-1:1,r=[],"+-".indexOf(t[0])>=0&&(t=t.slice(1)),".inf"===t?1===n?Number.POSITIVE_INFINITY:Number.NEGATIVE_INFINITY:".nan"===t?NaN:t.indexOf(":")>=0?(t.split(":").forEach(function(e){r.unshift(parseFloat(e,10))}),t=0,i=1,r.forEach(function(e){t+=e*i,i*=60}),n*t):n*parseFloat(t,10)}function o(e,t){var n;if(isNaN(e))switch(t){case"lowercase":return".nan";case"uppercase":return".NAN";case"camelcase":return".NaN"}else if(Number.POSITIVE_INFINITY===e)switch(t){case"lowercase":return".inf";case"uppercase":return".INF";case"camelcase":return".Inf"}else if(Number.NEGATIVE_INFINITY===e)switch(t){case"lowercase":return"-.inf";case"uppercase":return"-.INF";case"camelcase":return"-.Inf"}else if(s.isNegativeZero(e))return"-0.0";return n=e.toString(10),l.test(n)?n.replace("e",".e"):n}function a(e){return"[object Number]"===Object.prototype.toString.call(e)&&(e%1!=0||s.isNegativeZero(e))}var s=e("../common"),c=e("../type"),u=new RegExp("^(?:[-+]?(?:0|[1-9][0-9_]*)(?:\\.[0-9_]*)?(?:[eE][-+]?[0-9]+)?|\\.[0-9_]+(?:[eE][-+]?[0-9]+)?|[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+\\.[0-9_]*|[-+]?\\.(?:inf|Inf|INF)|\\.(?:nan|NaN|NAN))$"),l=/^[-+]?[0-9]+e/;t.exports=new c("tag:yaml.org,2002:float",{kind:"scalar",resolve:i,construct:r,predicate:a,represent:o,defaultStyle:"lowercase"})},{"../common":2,"../type":13}],17:[function(e,t,n){"use strict";function i(e){return 48<=e&&e<=57||65<=e&&e<=70||97<=e&&e<=102}function r(e){return 48<=e&&e<=55}function o(e){return 48<=e&&e<=57}function a(e){if(null===e)return!1;var t,n=e.length,a=0,s=!1;if(!n)return!1;if(t=e[a],"-"!==t&&"+"!==t||(t=e[++a]),"0"===t){if(a+1===n)return!0;if("b"===(t=e[++a])){for(a++;a<n;a++)if("_"!==(t=e[a])){if("0"!==t&&"1"!==t)return!1;s=!0}return s&&"_"!==t}if("x"===t){for(a++;a<n;a++)if("_"!==(t=e[a])){if(!i(e.charCodeAt(a)))return!1;s=!0}return s&&"_"!==t}for(;a<n;a++)if("_"!==(t=e[a])){if(!r(e.charCodeAt(a)))return!1;s=!0}return s&&"_"!==t}if("_"===t)return!1;for(;a<n;a++)if("_"!==(t=e[a])){if(":"===t)break;if(!o(e.charCodeAt(a)))return!1;s=!0}return!(!s||"_"===t)&&(":"!==t||/^(:[0-5]?[0-9])+$/.test(e.slice(a)))}function s(e){var t,n,i=e,r=1,o=[];return-1!==i.indexOf("_")&&(i=i.replace(/_/g,"")),t=i[0],"-"!==t&&"+"!==t||("-"===t&&(r=-1),i=i.slice(1),t=i[0]),"0"===i?0:"0"===t?"b"===i[1]?r*parseInt(i.slice(2),2):"x"===i[1]?r*parseInt(i,16):r*parseInt(i,8):-1!==i.indexOf(":")?(i.split(":").forEach(function(e){o.unshift(parseInt(e,10))}),i=0,n=1,o.forEach(function(e){i+=e*n,n*=60}),r*i):r*parseInt(i,10)}function c(e){return"[object Number]"===Object.prototype.toString.call(e)&&e%1==0&&!u.isNegativeZero(e)}var u=e("../common"),l=e("../type");t.exports=new l("tag:yaml.org,2002:int",{kind:"scalar",resolve:a,construct:s,predicate:c,represent:{binary:function(e){return"0b"+e.toString(2)},octal:function(e){return"0"+e.toString(8)},decimal:function(e){return e.toString(10)},hexadecimal:function(e){return"0x"+e.toString(16).toUpperCase()}},defaultStyle:"decimal",styleAliases:{binary:[2,"bin"],octal:[8,"oct"],decimal:[10,"dec"],hexadecimal:[16,"hex"]}})},{"../common":2,"../type":13}],18:[function(e,t,n){"use strict";function i(e){if(null===e)return!1;try{var t="("+e+")",n=s.parse(t,{range:!0});return"Program"===n.type&&1===n.body.length&&"ExpressionStatement"===n.body[0].type&&"FunctionExpression"===n.body[0].expression.type}catch(e){return!1}}function r(e){var t,n="("+e+")",i=s.parse(n,{range:!0}),r=[];if("Program"!==i.type||1!==i.body.length||"ExpressionStatement"!==i.body[0].type||"FunctionExpression"!==i.body[0].expression.type)throw new Error("Failed to resolve function");return i.body[0].expression.params.forEach(function(e){r.push(e.name)}),t=i.body[0].expression.body.range,new Function(r,n.slice(t[0]+1,t[1]-1))}function o(e){return e.toString()}function a(e){return"[object Function]"===Object.prototype.toString.call(e)}var s;try{s=e("esprima")}catch(e){"undefined"!=typeof window&&(s=window.esprima)}var c=e("../../type");t.exports=new c("tag:yaml.org,2002:js/function",{kind:"scalar",resolve:i,construct:r,predicate:a,represent:o})},{"../../type":13}],19:[function(e,t,n){"use strict";function i(e){if(null===e)return!1;if(0===e.length)return!1;var t=e,n=/\/([gim]*)$/.exec(e),i="";if("/"===t[0]){if(n&&(i=n[1]),i.length>3)return!1;if("/"!==t[t.length-i.length-1])return!1}return!0}function r(e){var t=e,n=/\/([gim]*)$/.exec(e),i="";return"/"===t[0]&&(n&&(i=n[1]),t=t.slice(1,t.length-i.length-1)),new RegExp(t,i)}function o(e){var t="/"+e.source+"/";return e.global&&(t+="g"),e.multiline&&(t+="m"),e.ignoreCase&&(t+="i"),t}function a(e){return"[object RegExp]"===Object.prototype.toString.call(e)}var s=e("../../type");t.exports=new s("tag:yaml.org,2002:js/regexp",{kind:"scalar",resolve:i,construct:r,predicate:a,represent:o})},{"../../type":13}],20:[function(e,t,n){"use strict";function i(){return!0}function r(){}function o(){return""}function a(e){return void 0===e}var s=e("../../type");t.exports=new s("tag:yaml.org,2002:js/undefined",{kind:"scalar",resolve:i,construct:r,predicate:a,represent:o})},{"../../type":13}],21:[function(e,t,n){"use strict";var i=e("../type");t.exports=new i("tag:yaml.org,2002:map",{kind:"mapping",construct:function(e){return null!==e?e:{}}})},{"../type":13}],22:[function(e,t,n){"use strict";function i(e){return"<<"===e||null===e}var r=e("../type");t.exports=new r("tag:yaml.org,2002:merge",{kind:"scalar",resolve:i})},{"../type":13}],23:[function(e,t,n){"use strict";function i(e){if(null===e)return!0;var t=e.length;return 1===t&&"~"===e||4===t&&("null"===e||"Null"===e||"NULL"===e)}function r(){return null}function o(e){return null===e}var a=e("../type");t.exports=new a("tag:yaml.org,2002:null",{kind:"scalar",resolve:i,construct:r,predicate:o,represent:{canonical:function(){return"~"},lowercase:function(){return"null"},uppercase:function(){return"NULL"},camelcase:function(){return"Null"}},defaultStyle:"lowercase"})},{"../type":13}],24:[function(e,t,n){"use strict";function i(e){if(null===e)return!0;var t,n,i,r,o,c=[],u=e;for(t=0,n=u.length;t<n;t+=1){if(i=u[t],o=!1,"[object Object]"!==s.call(i))return!1;for(r in i)if(a.call(i,r)){if(o)return!1;o=!0}if(!o)return!1;if(-1!==c.indexOf(r))return!1;c.push(r)}return!0}function r(e){return null!==e?e:[]}var o=e("../type"),a=Object.prototype.hasOwnProperty,s=Object.prototype.toString;t.exports=new o("tag:yaml.org,2002:omap",{kind:"sequence",resolve:i,construct:r})},{"../type":13}],25:[function(e,t,n){"use strict";function i(e){if(null===e)return!0;var t,n,i,r,o,s=e;for(o=new Array(s.length),t=0,n=s.length;t<n;t+=1){if(i=s[t],"[object Object]"!==a.call(i))return!1;if(r=Object.keys(i),1!==r.length)return!1;o[t]=[r[0],i[r[0]]]}return!0}function r(e){if(null===e)return[];var t,n,i,r,o,a=e;for(o=new Array(a.length),t=0,n=a.length;t<n;t+=1)i=a[t],r=Object.keys(i),o[t]=[r[0],i[r[0]]];return o}var o=e("../type"),a=Object.prototype.toString;t.exports=new o("tag:yaml.org,2002:pairs",{kind:"sequence",resolve:i,construct:r})},{"../type":13}],26:[function(e,t,n){"use strict";var i=e("../type");t.exports=new i("tag:yaml.org,2002:seq",{kind:"sequence",construct:function(e){return null!==e?e:[]}})},{"../type":13}],27:[function(e,t,n){"use strict";function i(e){if(null===e)return!0;var t,n=e;for(t in n)if(a.call(n,t)&&null!==n[t])return!1;return!0}function r(e){return null!==e?e:{}}var o=e("../type"),a=Object.prototype.hasOwnProperty;t.exports=new o("tag:yaml.org,2002:set",{kind:"mapping",resolve:i,construct:r})},{"../type":13}],28:[function(e,t,n){"use strict";var i=e("../type");t.exports=new i("tag:yaml.org,2002:str",{kind:"scalar",construct:function(e){return null!==e?e:""}})},{"../type":13}],29:[function(e,t,n){"use strict";function i(e){return null!==e&&(null!==s.exec(e)||null!==c.exec(e))}function r(e){var t,n,i,r,o,a,u,l,p,f,d=0,h=null;if(t=s.exec(e),null===t&&(t=c.exec(e)),null===t)throw new Error("Date resolve error");if(n=+t[1],i=+t[2]-1,r=+t[3],!t[4])return new Date(Date.UTC(n,i,r));if(o=+t[4],a=+t[5],u=+t[6],t[7]){for(d=t[7].slice(0,3);d.length<3;)d+="0";d=+d}return t[9]&&(l=+t[10],p=+(t[11]||0),h=6e4*(60*l+p),"-"===t[9]&&(h=-h)),f=new Date(Date.UTC(n,i,r,o,a,u,d)),h&&f.setTime(f.getTime()-h),f}function o(e){return e.toISOString()}var a=e("../type"),s=new RegExp("^([0-9][0-9][0-9][0-9])-([0-9][0-9])-([0-9][0-9])$"),c=new RegExp("^([0-9][0-9][0-9][0-9])-([0-9][0-9]?)-([0-9][0-9]?)(?:[Tt]|[ \\t]+)([0-9][0-9]?):([0-9][0-9]):([0-9][0-9])(?:\\.([0-9]*))?(?:[ \\t]*(Z|([-+])([0-9][0-9]?)(?::([0-9][0-9]))?))?$");t.exports=new a("tag:yaml.org,2002:timestamp",{kind:"scalar",resolve:i,construct:r,instanceOf:Date,represent:o})},{"../type":13}],"/":[function(e,t,n){"use strict";var i=e("./lib/js-yaml.js");t.exports=i},{"./lib/js-yaml.js":1}]},{},[])("/")});
diff --git a/node_modules/js-yaml/index.js b/node_modules/js-yaml/index.js
new file mode 100644
index 000000000..137443524
--- /dev/null
+++ b/node_modules/js-yaml/index.js
@@ -0,0 +1,7 @@
+'use strict';
+
+
+var yaml = require('./lib/js-yaml.js');
+
+
+module.exports = yaml;
diff --git a/node_modules/js-yaml/lib/js-yaml.js b/node_modules/js-yaml/lib/js-yaml.js
new file mode 100644
index 000000000..f0e92818e
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml.js
@@ -0,0 +1,39 @@
+'use strict';
+
+
+var loader = require('./js-yaml/loader');
+var dumper = require('./js-yaml/dumper');
+
+
+function deprecated(name) {
+  return function () {
+    throw new Error('Function ' + name + ' is deprecated and cannot be used.');
+  };
+}
+
+
+module.exports.Type                = require('./js-yaml/type');
+module.exports.Schema              = require('./js-yaml/schema');
+module.exports.FAILSAFE_SCHEMA     = require('./js-yaml/schema/failsafe');
+module.exports.JSON_SCHEMA         = require('./js-yaml/schema/json');
+module.exports.CORE_SCHEMA         = require('./js-yaml/schema/core');
+module.exports.DEFAULT_SAFE_SCHEMA = require('./js-yaml/schema/default_safe');
+module.exports.DEFAULT_FULL_SCHEMA = require('./js-yaml/schema/default_full');
+module.exports.load                = loader.load;
+module.exports.loadAll             = loader.loadAll;
+module.exports.safeLoad            = loader.safeLoad;
+module.exports.safeLoadAll         = loader.safeLoadAll;
+module.exports.dump                = dumper.dump;
+module.exports.safeDump            = dumper.safeDump;
+module.exports.YAMLException       = require('./js-yaml/exception');
+
+// Deprecated schema names from JS-YAML 2.0.x
+module.exports.MINIMAL_SCHEMA = require('./js-yaml/schema/failsafe');
+module.exports.SAFE_SCHEMA    = require('./js-yaml/schema/default_safe');
+module.exports.DEFAULT_SCHEMA = require('./js-yaml/schema/default_full');
+
+// Deprecated functions from JS-YAML 1.x.x
+module.exports.scan           = deprecated('scan');
+module.exports.parse          = deprecated('parse');
+module.exports.compose        = deprecated('compose');
+module.exports.addConstructor = deprecated('addConstructor');
diff --git a/node_modules/js-yaml/lib/js-yaml/common.js b/node_modules/js-yaml/lib/js-yaml/common.js
new file mode 100644
index 000000000..25ef7d8e4
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/common.js
@@ -0,0 +1,59 @@
+'use strict';
+
+
+function isNothing(subject) {
+  return (typeof subject === 'undefined') || (subject === null);
+}
+
+
+function isObject(subject) {
+  return (typeof subject === 'object') && (subject !== null);
+}
+
+
+function toArray(sequence) {
+  if (Array.isArray(sequence)) return sequence;
+  else if (isNothing(sequence)) return [];
+
+  return [ sequence ];
+}
+
+
+function extend(target, source) {
+  var index, length, key, sourceKeys;
+
+  if (source) {
+    sourceKeys = Object.keys(source);
+
+    for (index = 0, length = sourceKeys.length; index < length; index += 1) {
+      key = sourceKeys[index];
+      target[key] = source[key];
+    }
+  }
+
+  return target;
+}
+
+
+function repeat(string, count) {
+  var result = '', cycle;
+
+  for (cycle = 0; cycle < count; cycle += 1) {
+    result += string;
+  }
+
+  return result;
+}
+
+
+function isNegativeZero(number) {
+  return (number === 0) && (Number.NEGATIVE_INFINITY === 1 / number);
+}
+
+
+module.exports.isNothing      = isNothing;
+module.exports.isObject       = isObject;
+module.exports.toArray        = toArray;
+module.exports.repeat         = repeat;
+module.exports.isNegativeZero = isNegativeZero;
+module.exports.extend         = extend;
diff --git a/node_modules/js-yaml/lib/js-yaml/dumper.js b/node_modules/js-yaml/lib/js-yaml/dumper.js
new file mode 100644
index 000000000..203f436b2
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/dumper.js
@@ -0,0 +1,801 @@
+'use strict';
+
+/*eslint-disable no-use-before-define*/
+
+var common              = require('./common');
+var YAMLException       = require('./exception');
+var DEFAULT_FULL_SCHEMA = require('./schema/default_full');
+var DEFAULT_SAFE_SCHEMA = require('./schema/default_safe');
+
+var _toString       = Object.prototype.toString;
+var _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+var CHAR_TAB                  = 0x09; /* Tab */
+var CHAR_LINE_FEED            = 0x0A; /* LF */
+var CHAR_SPACE                = 0x20; /* Space */
+var CHAR_EXCLAMATION          = 0x21; /* ! */
+var CHAR_DOUBLE_QUOTE         = 0x22; /* " */
+var CHAR_SHARP                = 0x23; /* # */
+var CHAR_PERCENT              = 0x25; /* % */
+var CHAR_AMPERSAND            = 0x26; /* & */
+var CHAR_SINGLE_QUOTE         = 0x27; /* ' */
+var CHAR_ASTERISK             = 0x2A; /* * */
+var CHAR_COMMA                = 0x2C; /* , */
+var CHAR_MINUS                = 0x2D; /* - */
+var CHAR_COLON                = 0x3A; /* : */
+var CHAR_GREATER_THAN         = 0x3E; /* > */
+var CHAR_QUESTION             = 0x3F; /* ? */
+var CHAR_COMMERCIAL_AT        = 0x40; /* @ */
+var CHAR_LEFT_SQUARE_BRACKET  = 0x5B; /* [ */
+var CHAR_RIGHT_SQUARE_BRACKET = 0x5D; /* ] */
+var CHAR_GRAVE_ACCENT         = 0x60; /* ` */
+var CHAR_LEFT_CURLY_BRACKET   = 0x7B; /* { */
+var CHAR_VERTICAL_LINE        = 0x7C; /* | */
+var CHAR_RIGHT_CURLY_BRACKET  = 0x7D; /* } */
+
+var ESCAPE_SEQUENCES = {};
+
+ESCAPE_SEQUENCES[0x00]   = '\\0';
+ESCAPE_SEQUENCES[0x07]   = '\\a';
+ESCAPE_SEQUENCES[0x08]   = '\\b';
+ESCAPE_SEQUENCES[0x09]   = '\\t';
+ESCAPE_SEQUENCES[0x0A]   = '\\n';
+ESCAPE_SEQUENCES[0x0B]   = '\\v';
+ESCAPE_SEQUENCES[0x0C]   = '\\f';
+ESCAPE_SEQUENCES[0x0D]   = '\\r';
+ESCAPE_SEQUENCES[0x1B]   = '\\e';
+ESCAPE_SEQUENCES[0x22]   = '\\"';
+ESCAPE_SEQUENCES[0x5C]   = '\\\\';
+ESCAPE_SEQUENCES[0x85]   = '\\N';
+ESCAPE_SEQUENCES[0xA0]   = '\\_';
+ESCAPE_SEQUENCES[0x2028] = '\\L';
+ESCAPE_SEQUENCES[0x2029] = '\\P';
+
+var DEPRECATED_BOOLEANS_SYNTAX = [
+  'y', 'Y', 'yes', 'Yes', 'YES', 'on', 'On', 'ON',
+  'n', 'N', 'no', 'No', 'NO', 'off', 'Off', 'OFF'
+];
+
+function compileStyleMap(schema, map) {
+  var result, keys, index, length, tag, style, type;
+
+  if (map === null) return {};
+
+  result = {};
+  keys = Object.keys(map);
+
+  for (index = 0, length = keys.length; index < length; index += 1) {
+    tag = keys[index];
+    style = String(map[tag]);
+
+    if (tag.slice(0, 2) === '!!') {
+      tag = 'tag:yaml.org,2002:' + tag.slice(2);
+    }
+    type = schema.compiledTypeMap['fallback'][tag];
+
+    if (type && _hasOwnProperty.call(type.styleAliases, style)) {
+      style = type.styleAliases[style];
+    }
+
+    result[tag] = style;
+  }
+
+  return result;
+}
+
+function encodeHex(character) {
+  var string, handle, length;
+
+  string = character.toString(16).toUpperCase();
+
+  if (character <= 0xFF) {
+    handle = 'x';
+    length = 2;
+  } else if (character <= 0xFFFF) {
+    handle = 'u';
+    length = 4;
+  } else if (character <= 0xFFFFFFFF) {
+    handle = 'U';
+    length = 8;
+  } else {
+    throw new YAMLException('code point within a string may not be greater than 0xFFFFFFFF');
+  }
+
+  return '\\' + handle + common.repeat('0', length - string.length) + string;
+}
+
+function State(options) {
+  this.schema       = options['schema'] || DEFAULT_FULL_SCHEMA;
+  this.indent       = Math.max(1, (options['indent'] || 2));
+  this.skipInvalid  = options['skipInvalid'] || false;
+  this.flowLevel    = (common.isNothing(options['flowLevel']) ? -1 : options['flowLevel']);
+  this.styleMap     = compileStyleMap(this.schema, options['styles'] || null);
+  this.sortKeys     = options['sortKeys'] || false;
+  this.lineWidth    = options['lineWidth'] || 80;
+  this.noRefs       = options['noRefs'] || false;
+  this.noCompatMode = options['noCompatMode'] || false;
+
+  this.implicitTypes = this.schema.compiledImplicit;
+  this.explicitTypes = this.schema.compiledExplicit;
+
+  this.tag = null;
+  this.result = '';
+
+  this.duplicates = [];
+  this.usedDuplicates = null;
+}
+
+// Indents every line in a string. Empty lines (\n only) are not indented.
+function indentString(string, spaces) {
+  var ind = common.repeat(' ', spaces),
+      position = 0,
+      next = -1,
+      result = '',
+      line,
+      length = string.length;
+
+  while (position < length) {
+    next = string.indexOf('\n', position);
+    if (next === -1) {
+      line = string.slice(position);
+      position = length;
+    } else {
+      line = string.slice(position, next + 1);
+      position = next + 1;
+    }
+
+    if (line.length && line !== '\n') result += ind;
+
+    result += line;
+  }
+
+  return result;
+}
+
+function generateNextLine(state, level) {
+  return '\n' + common.repeat(' ', state.indent * level);
+}
+
+function testImplicitResolving(state, str) {
+  var index, length, type;
+
+  for (index = 0, length = state.implicitTypes.length; index < length; index += 1) {
+    type = state.implicitTypes[index];
+
+    if (type.resolve(str)) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+// [33] s-white ::= s-space | s-tab
+function isWhitespace(c) {
+  return c === CHAR_SPACE || c === CHAR_TAB;
+}
+
+// Returns true if the character can be printed without escaping.
+// From YAML 1.2: "any allowed characters known to be non-printable
+// should also be escaped. [However,] This isn’t mandatory"
+// Derived from nb-char - \t - #x85 - #xA0 - #x2028 - #x2029.
+function isPrintable(c) {
+  return  (0x00020 <= c && c <= 0x00007E)
+      || ((0x000A1 <= c && c <= 0x00D7FF) && c !== 0x2028 && c !== 0x2029)
+      || ((0x0E000 <= c && c <= 0x00FFFD) && c !== 0xFEFF /* BOM */)
+      ||  (0x10000 <= c && c <= 0x10FFFF);
+}
+
+// Simplified test for values allowed after the first character in plain style.
+function isPlainSafe(c) {
+  // Uses a subset of nb-char - c-flow-indicator - ":" - "#"
+  // where nb-char ::= c-printable - b-char - c-byte-order-mark.
+  return isPrintable(c) && c !== 0xFEFF
+    // - c-flow-indicator
+    && c !== CHAR_COMMA
+    && c !== CHAR_LEFT_SQUARE_BRACKET
+    && c !== CHAR_RIGHT_SQUARE_BRACKET
+    && c !== CHAR_LEFT_CURLY_BRACKET
+    && c !== CHAR_RIGHT_CURLY_BRACKET
+    // - ":" - "#"
+    && c !== CHAR_COLON
+    && c !== CHAR_SHARP;
+}
+
+// Simplified test for values allowed as the first character in plain style.
+function isPlainSafeFirst(c) {
+  // Uses a subset of ns-char - c-indicator
+  // where ns-char = nb-char - s-white.
+  return isPrintable(c) && c !== 0xFEFF
+    && !isWhitespace(c) // - s-white
+    // - (c-indicator ::=
+    // “-” | “?” | “:” | “,” | “[” | “]” | “{” | “}”
+    && c !== CHAR_MINUS
+    && c !== CHAR_QUESTION
+    && c !== CHAR_COLON
+    && c !== CHAR_COMMA
+    && c !== CHAR_LEFT_SQUARE_BRACKET
+    && c !== CHAR_RIGHT_SQUARE_BRACKET
+    && c !== CHAR_LEFT_CURLY_BRACKET
+    && c !== CHAR_RIGHT_CURLY_BRACKET
+    // | “#” | “&” | “*” | “!” | “|” | “>” | “'” | “"”
+    && c !== CHAR_SHARP
+    && c !== CHAR_AMPERSAND
+    && c !== CHAR_ASTERISK
+    && c !== CHAR_EXCLAMATION
+    && c !== CHAR_VERTICAL_LINE
+    && c !== CHAR_GREATER_THAN
+    && c !== CHAR_SINGLE_QUOTE
+    && c !== CHAR_DOUBLE_QUOTE
+    // | “%” | “@” | “`”)
+    && c !== CHAR_PERCENT
+    && c !== CHAR_COMMERCIAL_AT
+    && c !== CHAR_GRAVE_ACCENT;
+}
+
+var STYLE_PLAIN   = 1,
+    STYLE_SINGLE  = 2,
+    STYLE_LITERAL = 3,
+    STYLE_FOLDED  = 4,
+    STYLE_DOUBLE  = 5;
+
+// Determines which scalar styles are possible and returns the preferred style.
+// lineWidth = -1 => no limit.
+// Pre-conditions: str.length > 0.
+// Post-conditions:
+//    STYLE_PLAIN or STYLE_SINGLE => no \n are in the string.
+//    STYLE_LITERAL => no lines are suitable for folding (or lineWidth is -1).
+//    STYLE_FOLDED => a line > lineWidth and can be folded (and lineWidth != -1).
+function chooseScalarStyle(string, singleLineOnly, indentPerLevel, lineWidth, testAmbiguousType) {
+  var i;
+  var char;
+  var hasLineBreak = false;
+  var hasFoldableLine = false; // only checked if shouldTrackWidth
+  var shouldTrackWidth = lineWidth !== -1;
+  var previousLineBreak = -1; // count the first line correctly
+  var plain = isPlainSafeFirst(string.charCodeAt(0))
+          && !isWhitespace(string.charCodeAt(string.length - 1));
+
+  if (singleLineOnly) {
+    // Case: no block styles.
+    // Check for disallowed characters to rule out plain and single.
+    for (i = 0; i < string.length; i++) {
+      char = string.charCodeAt(i);
+      if (!isPrintable(char)) {
+        return STYLE_DOUBLE;
+      }
+      plain = plain && isPlainSafe(char);
+    }
+  } else {
+    // Case: block styles permitted.
+    for (i = 0; i < string.length; i++) {
+      char = string.charCodeAt(i);
+      if (char === CHAR_LINE_FEED) {
+        hasLineBreak = true;
+        // Check if any line can be folded.
+        if (shouldTrackWidth) {
+          hasFoldableLine = hasFoldableLine ||
+            // Foldable line = too long, and not more-indented.
+            (i - previousLineBreak - 1 > lineWidth &&
+             string[previousLineBreak + 1] !== ' ');
+          previousLineBreak = i;
+        }
+      } else if (!isPrintable(char)) {
+        return STYLE_DOUBLE;
+      }
+      plain = plain && isPlainSafe(char);
+    }
+    // in case the end is missing a \n
+    hasFoldableLine = hasFoldableLine || (shouldTrackWidth &&
+      (i - previousLineBreak - 1 > lineWidth &&
+       string[previousLineBreak + 1] !== ' '));
+  }
+  // Although every style can represent \n without escaping, prefer block styles
+  // for multiline, since they're more readable and they don't add empty lines.
+  // Also prefer folding a super-long line.
+  if (!hasLineBreak && !hasFoldableLine) {
+    // Strings interpretable as another type have to be quoted;
+    // e.g. the string 'true' vs. the boolean true.
+    return plain && !testAmbiguousType(string)
+      ? STYLE_PLAIN : STYLE_SINGLE;
+  }
+  // Edge case: block indentation indicator can only have one digit.
+  if (string[0] === ' ' && indentPerLevel > 9) {
+    return STYLE_DOUBLE;
+  }
+  // At this point we know block styles are valid.
+  // Prefer literal style unless we want to fold.
+  return hasFoldableLine ? STYLE_FOLDED : STYLE_LITERAL;
+}
+
+// Note: line breaking/folding is implemented for only the folded style.
+// NB. We drop the last trailing newline (if any) of a returned block scalar
+//  since the dumper adds its own newline. This always works:
+//    • No ending newline => unaffected; already using strip "-" chomping.
+//    • Ending newline    => removed then restored.
+//  Importantly, this keeps the "+" chomp indicator from gaining an extra line.
+function writeScalar(state, string, level, iskey) {
+  state.dump = (function () {
+    if (string.length === 0) {
+      return "''";
+    }
+    if (!state.noCompatMode &&
+        DEPRECATED_BOOLEANS_SYNTAX.indexOf(string) !== -1) {
+      return "'" + string + "'";
+    }
+
+    var indent = state.indent * Math.max(1, level); // no 0-indent scalars
+    // As indentation gets deeper, let the width decrease monotonically
+    // to the lower bound min(state.lineWidth, 40).
+    // Note that this implies
+    //  state.lineWidth ≤ 40 + state.indent: width is fixed at the lower bound.
+    //  state.lineWidth > 40 + state.indent: width decreases until the lower bound.
+    // This behaves better than a constant minimum width which disallows narrower options,
+    // or an indent threshold which causes the width to suddenly increase.
+    var lineWidth = state.lineWidth === -1
+      ? -1 : Math.max(Math.min(state.lineWidth, 40), state.lineWidth - indent);
+
+    // Without knowing if keys are implicit/explicit, assume implicit for safety.
+    var singleLineOnly = iskey
+      // No block styles in flow mode.
+      || (state.flowLevel > -1 && level >= state.flowLevel);
+    function testAmbiguity(string) {
+      return testImplicitResolving(state, string);
+    }
+
+    switch (chooseScalarStyle(string, singleLineOnly, state.indent, lineWidth, testAmbiguity)) {
+      case STYLE_PLAIN:
+        return string;
+      case STYLE_SINGLE:
+        return "'" + string.replace(/'/g, "''") + "'";
+      case STYLE_LITERAL:
+        return '|' + blockHeader(string, state.indent)
+          + dropEndingNewline(indentString(string, indent));
+      case STYLE_FOLDED:
+        return '>' + blockHeader(string, state.indent)
+          + dropEndingNewline(indentString(foldString(string, lineWidth), indent));
+      case STYLE_DOUBLE:
+        return '"' + escapeString(string, lineWidth) + '"';
+      default:
+        throw new YAMLException('impossible error: invalid scalar style');
+    }
+  }());
+}
+
+// Pre-conditions: string is valid for a block scalar, 1 <= indentPerLevel <= 9.
+function blockHeader(string, indentPerLevel) {
+  var indentIndicator = (string[0] === ' ') ? String(indentPerLevel) : '';
+
+  // note the special case: the string '\n' counts as a "trailing" empty line.
+  var clip =          string[string.length - 1] === '\n';
+  var keep = clip && (string[string.length - 2] === '\n' || string === '\n');
+  var chomp = keep ? '+' : (clip ? '' : '-');
+
+  return indentIndicator + chomp + '\n';
+}
+
+// (See the note for writeScalar.)
+function dropEndingNewline(string) {
+  return string[string.length - 1] === '\n' ? string.slice(0, -1) : string;
+}
+
+// Note: a long line without a suitable break point will exceed the width limit.
+// Pre-conditions: every char in str isPrintable, str.length > 0, width > 0.
+function foldString(string, width) {
+  // In folded style, $k$ consecutive newlines output as $k+1$ newlines—
+  // unless they're before or after a more-indented line, or at the very
+  // beginning or end, in which case $k$ maps to $k$.
+  // Therefore, parse each chunk as newline(s) followed by a content line.
+  var lineRe = /(\n+)([^\n]*)/g;
+
+  // first line (possibly an empty line)
+  var result = (function () {
+    var nextLF = string.indexOf('\n');
+    nextLF = nextLF !== -1 ? nextLF : string.length;
+    lineRe.lastIndex = nextLF;
+    return foldLine(string.slice(0, nextLF), width);
+  }());
+  // If we haven't reached the first content line yet, don't add an extra \n.
+  var prevMoreIndented = string[0] === '\n' || string[0] === ' ';
+  var moreIndented;
+
+  // rest of the lines
+  var match;
+  while ((match = lineRe.exec(string))) {
+    var prefix = match[1], line = match[2];
+    moreIndented = (line[0] === ' ');
+    result += prefix
+      + (!prevMoreIndented && !moreIndented && line !== ''
+        ? '\n' : '')
+      + foldLine(line, width);
+    prevMoreIndented = moreIndented;
+  }
+
+  return result;
+}
+
+// Greedy line breaking.
+// Picks the longest line under the limit each time,
+// otherwise settles for the shortest line over the limit.
+// NB. More-indented lines *cannot* be folded, as that would add an extra \n.
+function foldLine(line, width) {
+  if (line === '' || line[0] === ' ') return line;
+
+  // Since a more-indented line adds a \n, breaks can't be followed by a space.
+  var breakRe = / [^ ]/g; // note: the match index will always be <= length-2.
+  var match;
+  // start is an inclusive index. end, curr, and next are exclusive.
+  var start = 0, end, curr = 0, next = 0;
+  var result = '';
+
+  // Invariants: 0 <= start <= length-1.
+  //   0 <= curr <= next <= max(0, length-2). curr - start <= width.
+  // Inside the loop:
+  //   A match implies length >= 2, so curr and next are <= length-2.
+  while ((match = breakRe.exec(line))) {
+    next = match.index;
+    // maintain invariant: curr - start <= width
+    if (next - start > width) {
+      end = (curr > start) ? curr : next; // derive end <= length-2
+      result += '\n' + line.slice(start, end);
+      // skip the space that was output as \n
+      start = end + 1;                    // derive start <= length-1
+    }
+    curr = next;
+  }
+
+  // By the invariants, start <= length-1, so there is something left over.
+  // It is either the whole string or a part starting from non-whitespace.
+  result += '\n';
+  // Insert a break if the remainder is too long and there is a break available.
+  if (line.length - start > width && curr > start) {
+    result += line.slice(start, curr) + '\n' + line.slice(curr + 1);
+  } else {
+    result += line.slice(start);
+  }
+
+  return result.slice(1); // drop extra \n joiner
+}
+
+// Escapes a double-quoted string.
+function escapeString(string) {
+  var result = '';
+  var char;
+  var escapeSeq;
+
+  for (var i = 0; i < string.length; i++) {
+    char = string.charCodeAt(i);
+    escapeSeq = ESCAPE_SEQUENCES[char];
+    result += !escapeSeq && isPrintable(char)
+      ? string[i]
+      : escapeSeq || encodeHex(char);
+  }
+
+  return result;
+}
+
+function writeFlowSequence(state, level, object) {
+  var _result = '',
+      _tag    = state.tag,
+      index,
+      length;
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    // Write only valid elements.
+    if (writeNode(state, level, object[index], false, false)) {
+      if (index !== 0) _result += ', ';
+      _result += state.dump;
+    }
+  }
+
+  state.tag = _tag;
+  state.dump = '[' + _result + ']';
+}
+
+function writeBlockSequence(state, level, object, compact) {
+  var _result = '',
+      _tag    = state.tag,
+      index,
+      length;
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    // Write only valid elements.
+    if (writeNode(state, level + 1, object[index], true, true)) {
+      if (!compact || index !== 0) {
+        _result += generateNextLine(state, level);
+      }
+      _result += '- ' + state.dump;
+    }
+  }
+
+  state.tag = _tag;
+  state.dump = _result || '[]'; // Empty sequence if no valid values.
+}
+
+function writeFlowMapping(state, level, object) {
+  var _result       = '',
+      _tag          = state.tag,
+      objectKeyList = Object.keys(object),
+      index,
+      length,
+      objectKey,
+      objectValue,
+      pairBuffer;
+
+  for (index = 0, length = objectKeyList.length; index < length; index += 1) {
+    pairBuffer = '';
+
+    if (index !== 0) pairBuffer += ', ';
+
+    objectKey = objectKeyList[index];
+    objectValue = object[objectKey];
+
+    if (!writeNode(state, level, objectKey, false, false)) {
+      continue; // Skip this pair because of invalid key;
+    }
+
+    if (state.dump.length > 1024) pairBuffer += '? ';
+
+    pairBuffer += state.dump + ': ';
+
+    if (!writeNode(state, level, objectValue, false, false)) {
+      continue; // Skip this pair because of invalid value.
+    }
+
+    pairBuffer += state.dump;
+
+    // Both key and value are valid.
+    _result += pairBuffer;
+  }
+
+  state.tag = _tag;
+  state.dump = '{' + _result + '}';
+}
+
+function writeBlockMapping(state, level, object, compact) {
+  var _result       = '',
+      _tag          = state.tag,
+      objectKeyList = Object.keys(object),
+      index,
+      length,
+      objectKey,
+      objectValue,
+      explicitPair,
+      pairBuffer;
+
+  // Allow sorting keys so that the output file is deterministic
+  if (state.sortKeys === true) {
+    // Default sorting
+    objectKeyList.sort();
+  } else if (typeof state.sortKeys === 'function') {
+    // Custom sort function
+    objectKeyList.sort(state.sortKeys);
+  } else if (state.sortKeys) {
+    // Something is wrong
+    throw new YAMLException('sortKeys must be a boolean or a function');
+  }
+
+  for (index = 0, length = objectKeyList.length; index < length; index += 1) {
+    pairBuffer = '';
+
+    if (!compact || index !== 0) {
+      pairBuffer += generateNextLine(state, level);
+    }
+
+    objectKey = objectKeyList[index];
+    objectValue = object[objectKey];
+
+    if (!writeNode(state, level + 1, objectKey, true, true, true)) {
+      continue; // Skip this pair because of invalid key.
+    }
+
+    explicitPair = (state.tag !== null && state.tag !== '?') ||
+                   (state.dump && state.dump.length > 1024);
+
+    if (explicitPair) {
+      if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
+        pairBuffer += '?';
+      } else {
+        pairBuffer += '? ';
+      }
+    }
+
+    pairBuffer += state.dump;
+
+    if (explicitPair) {
+      pairBuffer += generateNextLine(state, level);
+    }
+
+    if (!writeNode(state, level + 1, objectValue, true, explicitPair)) {
+      continue; // Skip this pair because of invalid value.
+    }
+
+    if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
+      pairBuffer += ':';
+    } else {
+      pairBuffer += ': ';
+    }
+
+    pairBuffer += state.dump;
+
+    // Both key and value are valid.
+    _result += pairBuffer;
+  }
+
+  state.tag = _tag;
+  state.dump = _result || '{}'; // Empty mapping if no valid pairs.
+}
+
+function detectType(state, object, explicit) {
+  var _result, typeList, index, length, type, style;
+
+  typeList = explicit ? state.explicitTypes : state.implicitTypes;
+
+  for (index = 0, length = typeList.length; index < length; index += 1) {
+    type = typeList[index];
+
+    if ((type.instanceOf  || type.predicate) &&
+        (!type.instanceOf || ((typeof object === 'object') && (object instanceof type.instanceOf))) &&
+        (!type.predicate  || type.predicate(object))) {
+
+      state.tag = explicit ? type.tag : '?';
+
+      if (type.represent) {
+        style = state.styleMap[type.tag] || type.defaultStyle;
+
+        if (_toString.call(type.represent) === '[object Function]') {
+          _result = type.represent(object, style);
+        } else if (_hasOwnProperty.call(type.represent, style)) {
+          _result = type.represent[style](object, style);
+        } else {
+          throw new YAMLException('!<' + type.tag + '> tag resolver accepts not "' + style + '" style');
+        }
+
+        state.dump = _result;
+      }
+
+      return true;
+    }
+  }
+
+  return false;
+}
+
+// Serializes `object` and writes it to global `result`.
+// Returns true on success, or false on invalid object.
+//
+function writeNode(state, level, object, block, compact, iskey) {
+  state.tag = null;
+  state.dump = object;
+
+  if (!detectType(state, object, false)) {
+    detectType(state, object, true);
+  }
+
+  var type = _toString.call(state.dump);
+
+  if (block) {
+    block = (state.flowLevel < 0 || state.flowLevel > level);
+  }
+
+  var objectOrArray = type === '[object Object]' || type === '[object Array]',
+      duplicateIndex,
+      duplicate;
+
+  if (objectOrArray) {
+    duplicateIndex = state.duplicates.indexOf(object);
+    duplicate = duplicateIndex !== -1;
+  }
+
+  if ((state.tag !== null && state.tag !== '?') || duplicate || (state.indent !== 2 && level > 0)) {
+    compact = false;
+  }
+
+  if (duplicate && state.usedDuplicates[duplicateIndex]) {
+    state.dump = '*ref_' + duplicateIndex;
+  } else {
+    if (objectOrArray && duplicate && !state.usedDuplicates[duplicateIndex]) {
+      state.usedDuplicates[duplicateIndex] = true;
+    }
+    if (type === '[object Object]') {
+      if (block && (Object.keys(state.dump).length !== 0)) {
+        writeBlockMapping(state, level, state.dump, compact);
+        if (duplicate) {
+          state.dump = '&ref_' + duplicateIndex + state.dump;
+        }
+      } else {
+        writeFlowMapping(state, level, state.dump);
+        if (duplicate) {
+          state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;
+        }
+      }
+    } else if (type === '[object Array]') {
+      if (block && (state.dump.length !== 0)) {
+        writeBlockSequence(state, level, state.dump, compact);
+        if (duplicate) {
+          state.dump = '&ref_' + duplicateIndex + state.dump;
+        }
+      } else {
+        writeFlowSequence(state, level, state.dump);
+        if (duplicate) {
+          state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;
+        }
+      }
+    } else if (type === '[object String]') {
+      if (state.tag !== '?') {
+        writeScalar(state, state.dump, level, iskey);
+      }
+    } else {
+      if (state.skipInvalid) return false;
+      throw new YAMLException('unacceptable kind of an object to dump ' + type);
+    }
+
+    if (state.tag !== null && state.tag !== '?') {
+      state.dump = '!<' + state.tag + '> ' + state.dump;
+    }
+  }
+
+  return true;
+}
+
+function getDuplicateReferences(object, state) {
+  var objects = [],
+      duplicatesIndexes = [],
+      index,
+      length;
+
+  inspectNode(object, objects, duplicatesIndexes);
+
+  for (index = 0, length = duplicatesIndexes.length; index < length; index += 1) {
+    state.duplicates.push(objects[duplicatesIndexes[index]]);
+  }
+  state.usedDuplicates = new Array(length);
+}
+
+function inspectNode(object, objects, duplicatesIndexes) {
+  var objectKeyList,
+      index,
+      length;
+
+  if (object !== null && typeof object === 'object') {
+    index = objects.indexOf(object);
+    if (index !== -1) {
+      if (duplicatesIndexes.indexOf(index) === -1) {
+        duplicatesIndexes.push(index);
+      }
+    } else {
+      objects.push(object);
+
+      if (Array.isArray(object)) {
+        for (index = 0, length = object.length; index < length; index += 1) {
+          inspectNode(object[index], objects, duplicatesIndexes);
+        }
+      } else {
+        objectKeyList = Object.keys(object);
+
+        for (index = 0, length = objectKeyList.length; index < length; index += 1) {
+          inspectNode(object[objectKeyList[index]], objects, duplicatesIndexes);
+        }
+      }
+    }
+  }
+}
+
+function dump(input, options) {
+  options = options || {};
+
+  var state = new State(options);
+
+  if (!state.noRefs) getDuplicateReferences(input, state);
+
+  if (writeNode(state, 0, input, true, true)) return state.dump + '\n';
+
+  return '';
+}
+
+function safeDump(input, options) {
+  return dump(input, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
+}
+
+module.exports.dump     = dump;
+module.exports.safeDump = safeDump;
diff --git a/node_modules/js-yaml/lib/js-yaml/exception.js b/node_modules/js-yaml/lib/js-yaml/exception.js
new file mode 100644
index 000000000..cf4e62520
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/exception.js
@@ -0,0 +1,43 @@
+// YAML error class. http://stackoverflow.com/questions/8458984
+//
+'use strict';
+
+function YAMLException(reason, mark) {
+  // Super constructor
+  Error.call(this);
+
+  // Include stack trace in error object
+  if (Error.captureStackTrace) {
+    // Chrome and NodeJS
+    Error.captureStackTrace(this, this.constructor);
+  } else {
+    // FF, IE 10+ and Safari 6+. Fallback for others
+    this.stack = (new Error()).stack || '';
+  }
+
+  this.name = 'YAMLException';
+  this.reason = reason;
+  this.mark = mark;
+  this.message = (this.reason || '(unknown reason)') + (this.mark ? ' ' + this.mark.toString() : '');
+}
+
+
+// Inherit from Error
+YAMLException.prototype = Object.create(Error.prototype);
+YAMLException.prototype.constructor = YAMLException;
+
+
+YAMLException.prototype.toString = function toString(compact) {
+  var result = this.name + ': ';
+
+  result += this.reason || '(unknown reason)';
+
+  if (!compact && this.mark) {
+    result += ' ' + this.mark.toString();
+  }
+
+  return result;
+};
+
+
+module.exports = YAMLException;
diff --git a/node_modules/js-yaml/lib/js-yaml/loader.js b/node_modules/js-yaml/lib/js-yaml/loader.js
new file mode 100644
index 000000000..def3e71b9
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/loader.js
@@ -0,0 +1,1591 @@
+'use strict';
+
+/*eslint-disable max-len,no-use-before-define*/
+
+var common              = require('./common');
+var YAMLException       = require('./exception');
+var Mark                = require('./mark');
+var DEFAULT_SAFE_SCHEMA = require('./schema/default_safe');
+var DEFAULT_FULL_SCHEMA = require('./schema/default_full');
+
+
+var _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+
+var CONTEXT_FLOW_IN   = 1;
+var CONTEXT_FLOW_OUT  = 2;
+var CONTEXT_BLOCK_IN  = 3;
+var CONTEXT_BLOCK_OUT = 4;
+
+
+var CHOMPING_CLIP  = 1;
+var CHOMPING_STRIP = 2;
+var CHOMPING_KEEP  = 3;
+
+
+var PATTERN_NON_PRINTABLE         = /[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x84\x86-\x9F\uFFFE\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
+var PATTERN_NON_ASCII_LINE_BREAKS = /[\x85\u2028\u2029]/;
+var PATTERN_FLOW_INDICATORS       = /[,\[\]\{\}]/;
+var PATTERN_TAG_HANDLE            = /^(?:!|!!|![a-z\-]+!)$/i;
+var PATTERN_TAG_URI               = /^(?:!|[^,\[\]\{\}])(?:%[0-9a-f]{2}|[0-9a-z\-#;\/\?:@&=\+\$,_\.!~\*'\(\)\[\]])*$/i;
+
+
+function is_EOL(c) {
+  return (c === 0x0A/* LF */) || (c === 0x0D/* CR */);
+}
+
+function is_WHITE_SPACE(c) {
+  return (c === 0x09/* Tab */) || (c === 0x20/* Space */);
+}
+
+function is_WS_OR_EOL(c) {
+  return (c === 0x09/* Tab */) ||
+         (c === 0x20/* Space */) ||
+         (c === 0x0A/* LF */) ||
+         (c === 0x0D/* CR */);
+}
+
+function is_FLOW_INDICATOR(c) {
+  return c === 0x2C/* , */ ||
+         c === 0x5B/* [ */ ||
+         c === 0x5D/* ] */ ||
+         c === 0x7B/* { */ ||
+         c === 0x7D/* } */;
+}
+
+function fromHexCode(c) {
+  var lc;
+
+  if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {
+    return c - 0x30;
+  }
+
+  /*eslint-disable no-bitwise*/
+  lc = c | 0x20;
+
+  if ((0x61/* a */ <= lc) && (lc <= 0x66/* f */)) {
+    return lc - 0x61 + 10;
+  }
+
+  return -1;
+}
+
+function escapedHexLen(c) {
+  if (c === 0x78/* x */) { return 2; }
+  if (c === 0x75/* u */) { return 4; }
+  if (c === 0x55/* U */) { return 8; }
+  return 0;
+}
+
+function fromDecimalCode(c) {
+  if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {
+    return c - 0x30;
+  }
+
+  return -1;
+}
+
+function simpleEscapeSequence(c) {
+  return (c === 0x30/* 0 */) ? '\x00' :
+        (c === 0x61/* a */) ? '\x07' :
+        (c === 0x62/* b */) ? '\x08' :
+        (c === 0x74/* t */) ? '\x09' :
+        (c === 0x09/* Tab */) ? '\x09' :
+        (c === 0x6E/* n */) ? '\x0A' :
+        (c === 0x76/* v */) ? '\x0B' :
+        (c === 0x66/* f */) ? '\x0C' :
+        (c === 0x72/* r */) ? '\x0D' :
+        (c === 0x65/* e */) ? '\x1B' :
+        (c === 0x20/* Space */) ? ' ' :
+        (c === 0x22/* " */) ? '\x22' :
+        (c === 0x2F/* / */) ? '/' :
+        (c === 0x5C/* \ */) ? '\x5C' :
+        (c === 0x4E/* N */) ? '\x85' :
+        (c === 0x5F/* _ */) ? '\xA0' :
+        (c === 0x4C/* L */) ? '\u2028' :
+        (c === 0x50/* P */) ? '\u2029' : '';
+}
+
+function charFromCodepoint(c) {
+  if (c <= 0xFFFF) {
+    return String.fromCharCode(c);
+  }
+  // Encode UTF-16 surrogate pair
+  // https://en.wikipedia.org/wiki/UTF-16#Code_points_U.2B010000_to_U.2B10FFFF
+  return String.fromCharCode(((c - 0x010000) >> 10) + 0xD800,
+                             ((c - 0x010000) & 0x03FF) + 0xDC00);
+}
+
+var simpleEscapeCheck = new Array(256); // integer, for fast access
+var simpleEscapeMap = new Array(256);
+for (var i = 0; i < 256; i++) {
+  simpleEscapeCheck[i] = simpleEscapeSequence(i) ? 1 : 0;
+  simpleEscapeMap[i] = simpleEscapeSequence(i);
+}
+
+
+function State(input, options) {
+  this.input = input;
+
+  this.filename  = options['filename']  || null;
+  this.schema    = options['schema']    || DEFAULT_FULL_SCHEMA;
+  this.onWarning = options['onWarning'] || null;
+  this.legacy    = options['legacy']    || false;
+  this.json      = options['json']      || false;
+  this.listener  = options['listener']  || null;
+
+  this.implicitTypes = this.schema.compiledImplicit;
+  this.typeMap       = this.schema.compiledTypeMap;
+
+  this.length     = input.length;
+  this.position   = 0;
+  this.line       = 0;
+  this.lineStart  = 0;
+  this.lineIndent = 0;
+
+  this.documents = [];
+
+  /*
+  this.version;
+  this.checkLineBreaks;
+  this.tagMap;
+  this.anchorMap;
+  this.tag;
+  this.anchor;
+  this.kind;
+  this.result;*/
+
+}
+
+
+function generateError(state, message) {
+  return new YAMLException(
+    message,
+    new Mark(state.filename, state.input, state.position, state.line, (state.position - state.lineStart)));
+}
+
+function throwError(state, message) {
+  throw generateError(state, message);
+}
+
+function throwWarning(state, message) {
+  if (state.onWarning) {
+    state.onWarning.call(null, generateError(state, message));
+  }
+}
+
+
+var directiveHandlers = {
+
+  YAML: function handleYamlDirective(state, name, args) {
+
+    var match, major, minor;
+
+    if (state.version !== null) {
+      throwError(state, 'duplication of %YAML directive');
+    }
+
+    if (args.length !== 1) {
+      throwError(state, 'YAML directive accepts exactly one argument');
+    }
+
+    match = /^([0-9]+)\.([0-9]+)$/.exec(args[0]);
+
+    if (match === null) {
+      throwError(state, 'ill-formed argument of the YAML directive');
+    }
+
+    major = parseInt(match[1], 10);
+    minor = parseInt(match[2], 10);
+
+    if (major !== 1) {
+      throwError(state, 'unacceptable YAML version of the document');
+    }
+
+    state.version = args[0];
+    state.checkLineBreaks = (minor < 2);
+
+    if (minor !== 1 && minor !== 2) {
+      throwWarning(state, 'unsupported YAML version of the document');
+    }
+  },
+
+  TAG: function handleTagDirective(state, name, args) {
+
+    var handle, prefix;
+
+    if (args.length !== 2) {
+      throwError(state, 'TAG directive accepts exactly two arguments');
+    }
+
+    handle = args[0];
+    prefix = args[1];
+
+    if (!PATTERN_TAG_HANDLE.test(handle)) {
+      throwError(state, 'ill-formed tag handle (first argument) of the TAG directive');
+    }
+
+    if (_hasOwnProperty.call(state.tagMap, handle)) {
+      throwError(state, 'there is a previously declared suffix for "' + handle + '" tag handle');
+    }
+
+    if (!PATTERN_TAG_URI.test(prefix)) {
+      throwError(state, 'ill-formed tag prefix (second argument) of the TAG directive');
+    }
+
+    state.tagMap[handle] = prefix;
+  }
+};
+
+
+function captureSegment(state, start, end, checkJson) {
+  var _position, _length, _character, _result;
+
+  if (start < end) {
+    _result = state.input.slice(start, end);
+
+    if (checkJson) {
+      for (_position = 0, _length = _result.length;
+           _position < _length;
+           _position += 1) {
+        _character = _result.charCodeAt(_position);
+        if (!(_character === 0x09 ||
+              (0x20 <= _character && _character <= 0x10FFFF))) {
+          throwError(state, 'expected valid JSON character');
+        }
+      }
+    } else if (PATTERN_NON_PRINTABLE.test(_result)) {
+      throwError(state, 'the stream contains non-printable characters');
+    }
+
+    state.result += _result;
+  }
+}
+
+function mergeMappings(state, destination, source, overridableKeys) {
+  var sourceKeys, key, index, quantity;
+
+  if (!common.isObject(source)) {
+    throwError(state, 'cannot merge mappings; the provided source object is unacceptable');
+  }
+
+  sourceKeys = Object.keys(source);
+
+  for (index = 0, quantity = sourceKeys.length; index < quantity; index += 1) {
+    key = sourceKeys[index];
+
+    if (!_hasOwnProperty.call(destination, key)) {
+      destination[key] = source[key];
+      overridableKeys[key] = true;
+    }
+  }
+}
+
+function storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, startLine, startPos) {
+  var index, quantity;
+
+  keyNode = String(keyNode);
+
+  if (_result === null) {
+    _result = {};
+  }
+
+  if (keyTag === 'tag:yaml.org,2002:merge') {
+    if (Array.isArray(valueNode)) {
+      for (index = 0, quantity = valueNode.length; index < quantity; index += 1) {
+        mergeMappings(state, _result, valueNode[index], overridableKeys);
+      }
+    } else {
+      mergeMappings(state, _result, valueNode, overridableKeys);
+    }
+  } else {
+    if (!state.json &&
+        !_hasOwnProperty.call(overridableKeys, keyNode) &&
+        _hasOwnProperty.call(_result, keyNode)) {
+      state.line = startLine || state.line;
+      state.position = startPos || state.position;
+      throwError(state, 'duplicated mapping key');
+    }
+    _result[keyNode] = valueNode;
+    delete overridableKeys[keyNode];
+  }
+
+  return _result;
+}
+
+function readLineBreak(state) {
+  var ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch === 0x0A/* LF */) {
+    state.position++;
+  } else if (ch === 0x0D/* CR */) {
+    state.position++;
+    if (state.input.charCodeAt(state.position) === 0x0A/* LF */) {
+      state.position++;
+    }
+  } else {
+    throwError(state, 'a line break is expected');
+  }
+
+  state.line += 1;
+  state.lineStart = state.position;
+}
+
+function skipSeparationSpace(state, allowComments, checkIndent) {
+  var lineBreaks = 0,
+      ch = state.input.charCodeAt(state.position);
+
+  while (ch !== 0) {
+    while (is_WHITE_SPACE(ch)) {
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    if (allowComments && ch === 0x23/* # */) {
+      do {
+        ch = state.input.charCodeAt(++state.position);
+      } while (ch !== 0x0A/* LF */ && ch !== 0x0D/* CR */ && ch !== 0);
+    }
+
+    if (is_EOL(ch)) {
+      readLineBreak(state);
+
+      ch = state.input.charCodeAt(state.position);
+      lineBreaks++;
+      state.lineIndent = 0;
+
+      while (ch === 0x20/* Space */) {
+        state.lineIndent++;
+        ch = state.input.charCodeAt(++state.position);
+      }
+    } else {
+      break;
+    }
+  }
+
+  if (checkIndent !== -1 && lineBreaks !== 0 && state.lineIndent < checkIndent) {
+    throwWarning(state, 'deficient indentation');
+  }
+
+  return lineBreaks;
+}
+
+function testDocumentSeparator(state) {
+  var _position = state.position,
+      ch;
+
+  ch = state.input.charCodeAt(_position);
+
+  // Condition state.position === state.lineStart is tested
+  // in parent on each call, for efficiency. No needs to test here again.
+  if ((ch === 0x2D/* - */ || ch === 0x2E/* . */) &&
+      ch === state.input.charCodeAt(_position + 1) &&
+      ch === state.input.charCodeAt(_position + 2)) {
+
+    _position += 3;
+
+    ch = state.input.charCodeAt(_position);
+
+    if (ch === 0 || is_WS_OR_EOL(ch)) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+function writeFoldedLines(state, count) {
+  if (count === 1) {
+    state.result += ' ';
+  } else if (count > 1) {
+    state.result += common.repeat('\n', count - 1);
+  }
+}
+
+
+function readPlainScalar(state, nodeIndent, withinFlowCollection) {
+  var preceding,
+      following,
+      captureStart,
+      captureEnd,
+      hasPendingContent,
+      _line,
+      _lineStart,
+      _lineIndent,
+      _kind = state.kind,
+      _result = state.result,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (is_WS_OR_EOL(ch)      ||
+      is_FLOW_INDICATOR(ch) ||
+      ch === 0x23/* # */    ||
+      ch === 0x26/* & */    ||
+      ch === 0x2A/* * */    ||
+      ch === 0x21/* ! */    ||
+      ch === 0x7C/* | */    ||
+      ch === 0x3E/* > */    ||
+      ch === 0x27/* ' */    ||
+      ch === 0x22/* " */    ||
+      ch === 0x25/* % */    ||
+      ch === 0x40/* @ */    ||
+      ch === 0x60/* ` */) {
+    return false;
+  }
+
+  if (ch === 0x3F/* ? */ || ch === 0x2D/* - */) {
+    following = state.input.charCodeAt(state.position + 1);
+
+    if (is_WS_OR_EOL(following) ||
+        withinFlowCollection && is_FLOW_INDICATOR(following)) {
+      return false;
+    }
+  }
+
+  state.kind = 'scalar';
+  state.result = '';
+  captureStart = captureEnd = state.position;
+  hasPendingContent = false;
+
+  while (ch !== 0) {
+    if (ch === 0x3A/* : */) {
+      following = state.input.charCodeAt(state.position + 1);
+
+      if (is_WS_OR_EOL(following) ||
+          withinFlowCollection && is_FLOW_INDICATOR(following)) {
+        break;
+      }
+
+    } else if (ch === 0x23/* # */) {
+      preceding = state.input.charCodeAt(state.position - 1);
+
+      if (is_WS_OR_EOL(preceding)) {
+        break;
+      }
+
+    } else if ((state.position === state.lineStart && testDocumentSeparator(state)) ||
+               withinFlowCollection && is_FLOW_INDICATOR(ch)) {
+      break;
+
+    } else if (is_EOL(ch)) {
+      _line = state.line;
+      _lineStart = state.lineStart;
+      _lineIndent = state.lineIndent;
+      skipSeparationSpace(state, false, -1);
+
+      if (state.lineIndent >= nodeIndent) {
+        hasPendingContent = true;
+        ch = state.input.charCodeAt(state.position);
+        continue;
+      } else {
+        state.position = captureEnd;
+        state.line = _line;
+        state.lineStart = _lineStart;
+        state.lineIndent = _lineIndent;
+        break;
+      }
+    }
+
+    if (hasPendingContent) {
+      captureSegment(state, captureStart, captureEnd, false);
+      writeFoldedLines(state, state.line - _line);
+      captureStart = captureEnd = state.position;
+      hasPendingContent = false;
+    }
+
+    if (!is_WHITE_SPACE(ch)) {
+      captureEnd = state.position + 1;
+    }
+
+    ch = state.input.charCodeAt(++state.position);
+  }
+
+  captureSegment(state, captureStart, captureEnd, false);
+
+  if (state.result) {
+    return true;
+  }
+
+  state.kind = _kind;
+  state.result = _result;
+  return false;
+}
+
+function readSingleQuotedScalar(state, nodeIndent) {
+  var ch,
+      captureStart, captureEnd;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x27/* ' */) {
+    return false;
+  }
+
+  state.kind = 'scalar';
+  state.result = '';
+  state.position++;
+  captureStart = captureEnd = state.position;
+
+  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
+    if (ch === 0x27/* ' */) {
+      captureSegment(state, captureStart, state.position, true);
+      ch = state.input.charCodeAt(++state.position);
+
+      if (ch === 0x27/* ' */) {
+        captureStart = state.position;
+        state.position++;
+        captureEnd = state.position;
+      } else {
+        return true;
+      }
+
+    } else if (is_EOL(ch)) {
+      captureSegment(state, captureStart, captureEnd, true);
+      writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
+      captureStart = captureEnd = state.position;
+
+    } else if (state.position === state.lineStart && testDocumentSeparator(state)) {
+      throwError(state, 'unexpected end of the document within a single quoted scalar');
+
+    } else {
+      state.position++;
+      captureEnd = state.position;
+    }
+  }
+
+  throwError(state, 'unexpected end of the stream within a single quoted scalar');
+}
+
+function readDoubleQuotedScalar(state, nodeIndent) {
+  var captureStart,
+      captureEnd,
+      hexLength,
+      hexResult,
+      tmp,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x22/* " */) {
+    return false;
+  }
+
+  state.kind = 'scalar';
+  state.result = '';
+  state.position++;
+  captureStart = captureEnd = state.position;
+
+  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
+    if (ch === 0x22/* " */) {
+      captureSegment(state, captureStart, state.position, true);
+      state.position++;
+      return true;
+
+    } else if (ch === 0x5C/* \ */) {
+      captureSegment(state, captureStart, state.position, true);
+      ch = state.input.charCodeAt(++state.position);
+
+      if (is_EOL(ch)) {
+        skipSeparationSpace(state, false, nodeIndent);
+
+        // TODO: rework to inline fn with no type cast?
+      } else if (ch < 256 && simpleEscapeCheck[ch]) {
+        state.result += simpleEscapeMap[ch];
+        state.position++;
+
+      } else if ((tmp = escapedHexLen(ch)) > 0) {
+        hexLength = tmp;
+        hexResult = 0;
+
+        for (; hexLength > 0; hexLength--) {
+          ch = state.input.charCodeAt(++state.position);
+
+          if ((tmp = fromHexCode(ch)) >= 0) {
+            hexResult = (hexResult << 4) + tmp;
+
+          } else {
+            throwError(state, 'expected hexadecimal character');
+          }
+        }
+
+        state.result += charFromCodepoint(hexResult);
+
+        state.position++;
+
+      } else {
+        throwError(state, 'unknown escape sequence');
+      }
+
+      captureStart = captureEnd = state.position;
+
+    } else if (is_EOL(ch)) {
+      captureSegment(state, captureStart, captureEnd, true);
+      writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
+      captureStart = captureEnd = state.position;
+
+    } else if (state.position === state.lineStart && testDocumentSeparator(state)) {
+      throwError(state, 'unexpected end of the document within a double quoted scalar');
+
+    } else {
+      state.position++;
+      captureEnd = state.position;
+    }
+  }
+
+  throwError(state, 'unexpected end of the stream within a double quoted scalar');
+}
+
+function readFlowCollection(state, nodeIndent) {
+  var readNext = true,
+      _line,
+      _tag     = state.tag,
+      _result,
+      _anchor  = state.anchor,
+      following,
+      terminator,
+      isPair,
+      isExplicitPair,
+      isMapping,
+      overridableKeys = {},
+      keyNode,
+      keyTag,
+      valueNode,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch === 0x5B/* [ */) {
+    terminator = 0x5D;/* ] */
+    isMapping = false;
+    _result = [];
+  } else if (ch === 0x7B/* { */) {
+    terminator = 0x7D;/* } */
+    isMapping = true;
+    _result = {};
+  } else {
+    return false;
+  }
+
+  if (state.anchor !== null) {
+    state.anchorMap[state.anchor] = _result;
+  }
+
+  ch = state.input.charCodeAt(++state.position);
+
+  while (ch !== 0) {
+    skipSeparationSpace(state, true, nodeIndent);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if (ch === terminator) {
+      state.position++;
+      state.tag = _tag;
+      state.anchor = _anchor;
+      state.kind = isMapping ? 'mapping' : 'sequence';
+      state.result = _result;
+      return true;
+    } else if (!readNext) {
+      throwError(state, 'missed comma between flow collection entries');
+    }
+
+    keyTag = keyNode = valueNode = null;
+    isPair = isExplicitPair = false;
+
+    if (ch === 0x3F/* ? */) {
+      following = state.input.charCodeAt(state.position + 1);
+
+      if (is_WS_OR_EOL(following)) {
+        isPair = isExplicitPair = true;
+        state.position++;
+        skipSeparationSpace(state, true, nodeIndent);
+      }
+    }
+
+    _line = state.line;
+    composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
+    keyTag = state.tag;
+    keyNode = state.result;
+    skipSeparationSpace(state, true, nodeIndent);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if ((isExplicitPair || state.line === _line) && ch === 0x3A/* : */) {
+      isPair = true;
+      ch = state.input.charCodeAt(++state.position);
+      skipSeparationSpace(state, true, nodeIndent);
+      composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
+      valueNode = state.result;
+    }
+
+    if (isMapping) {
+      storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode);
+    } else if (isPair) {
+      _result.push(storeMappingPair(state, null, overridableKeys, keyTag, keyNode, valueNode));
+    } else {
+      _result.push(keyNode);
+    }
+
+    skipSeparationSpace(state, true, nodeIndent);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if (ch === 0x2C/* , */) {
+      readNext = true;
+      ch = state.input.charCodeAt(++state.position);
+    } else {
+      readNext = false;
+    }
+  }
+
+  throwError(state, 'unexpected end of the stream within a flow collection');
+}
+
+function readBlockScalar(state, nodeIndent) {
+  var captureStart,
+      folding,
+      chomping       = CHOMPING_CLIP,
+      didReadContent = false,
+      detectedIndent = false,
+      textIndent     = nodeIndent,
+      emptyLines     = 0,
+      atMoreIndented = false,
+      tmp,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch === 0x7C/* | */) {
+    folding = false;
+  } else if (ch === 0x3E/* > */) {
+    folding = true;
+  } else {
+    return false;
+  }
+
+  state.kind = 'scalar';
+  state.result = '';
+
+  while (ch !== 0) {
+    ch = state.input.charCodeAt(++state.position);
+
+    if (ch === 0x2B/* + */ || ch === 0x2D/* - */) {
+      if (CHOMPING_CLIP === chomping) {
+        chomping = (ch === 0x2B/* + */) ? CHOMPING_KEEP : CHOMPING_STRIP;
+      } else {
+        throwError(state, 'repeat of a chomping mode identifier');
+      }
+
+    } else if ((tmp = fromDecimalCode(ch)) >= 0) {
+      if (tmp === 0) {
+        throwError(state, 'bad explicit indentation width of a block scalar; it cannot be less than one');
+      } else if (!detectedIndent) {
+        textIndent = nodeIndent + tmp - 1;
+        detectedIndent = true;
+      } else {
+        throwError(state, 'repeat of an indentation width identifier');
+      }
+
+    } else {
+      break;
+    }
+  }
+
+  if (is_WHITE_SPACE(ch)) {
+    do { ch = state.input.charCodeAt(++state.position); }
+    while (is_WHITE_SPACE(ch));
+
+    if (ch === 0x23/* # */) {
+      do { ch = state.input.charCodeAt(++state.position); }
+      while (!is_EOL(ch) && (ch !== 0));
+    }
+  }
+
+  while (ch !== 0) {
+    readLineBreak(state);
+    state.lineIndent = 0;
+
+    ch = state.input.charCodeAt(state.position);
+
+    while ((!detectedIndent || state.lineIndent < textIndent) &&
+           (ch === 0x20/* Space */)) {
+      state.lineIndent++;
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    if (!detectedIndent && state.lineIndent > textIndent) {
+      textIndent = state.lineIndent;
+    }
+
+    if (is_EOL(ch)) {
+      emptyLines++;
+      continue;
+    }
+
+    // End of the scalar.
+    if (state.lineIndent < textIndent) {
+
+      // Perform the chomping.
+      if (chomping === CHOMPING_KEEP) {
+        state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
+      } else if (chomping === CHOMPING_CLIP) {
+        if (didReadContent) { // i.e. only if the scalar is not empty.
+          state.result += '\n';
+        }
+      }
+
+      // Break this `while` cycle and go to the funciton's epilogue.
+      break;
+    }
+
+    // Folded style: use fancy rules to handle line breaks.
+    if (folding) {
+
+      // Lines starting with white space characters (more-indented lines) are not folded.
+      if (is_WHITE_SPACE(ch)) {
+        atMoreIndented = true;
+        // except for the first content line (cf. Example 8.1)
+        state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
+
+      // End of more-indented block.
+      } else if (atMoreIndented) {
+        atMoreIndented = false;
+        state.result += common.repeat('\n', emptyLines + 1);
+
+      // Just one line break - perceive as the same line.
+      } else if (emptyLines === 0) {
+        if (didReadContent) { // i.e. only if we have already read some scalar content.
+          state.result += ' ';
+        }
+
+      // Several line breaks - perceive as different lines.
+      } else {
+        state.result += common.repeat('\n', emptyLines);
+      }
+
+    // Literal style: just add exact number of line breaks between content lines.
+    } else {
+      // Keep all line breaks except the header line break.
+      state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
+    }
+
+    didReadContent = true;
+    detectedIndent = true;
+    emptyLines = 0;
+    captureStart = state.position;
+
+    while (!is_EOL(ch) && (ch !== 0)) {
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    captureSegment(state, captureStart, state.position, false);
+  }
+
+  return true;
+}
+
+function readBlockSequence(state, nodeIndent) {
+  var _line,
+      _tag      = state.tag,
+      _anchor   = state.anchor,
+      _result   = [],
+      following,
+      detected  = false,
+      ch;
+
+  if (state.anchor !== null) {
+    state.anchorMap[state.anchor] = _result;
+  }
+
+  ch = state.input.charCodeAt(state.position);
+
+  while (ch !== 0) {
+
+    if (ch !== 0x2D/* - */) {
+      break;
+    }
+
+    following = state.input.charCodeAt(state.position + 1);
+
+    if (!is_WS_OR_EOL(following)) {
+      break;
+    }
+
+    detected = true;
+    state.position++;
+
+    if (skipSeparationSpace(state, true, -1)) {
+      if (state.lineIndent <= nodeIndent) {
+        _result.push(null);
+        ch = state.input.charCodeAt(state.position);
+        continue;
+      }
+    }
+
+    _line = state.line;
+    composeNode(state, nodeIndent, CONTEXT_BLOCK_IN, false, true);
+    _result.push(state.result);
+    skipSeparationSpace(state, true, -1);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if ((state.line === _line || state.lineIndent > nodeIndent) && (ch !== 0)) {
+      throwError(state, 'bad indentation of a sequence entry');
+    } else if (state.lineIndent < nodeIndent) {
+      break;
+    }
+  }
+
+  if (detected) {
+    state.tag = _tag;
+    state.anchor = _anchor;
+    state.kind = 'sequence';
+    state.result = _result;
+    return true;
+  }
+  return false;
+}
+
+function readBlockMapping(state, nodeIndent, flowIndent) {
+  var following,
+      allowCompact,
+      _line,
+      _pos,
+      _tag          = state.tag,
+      _anchor       = state.anchor,
+      _result       = {},
+      overridableKeys = {},
+      keyTag        = null,
+      keyNode       = null,
+      valueNode     = null,
+      atExplicitKey = false,
+      detected      = false,
+      ch;
+
+  if (state.anchor !== null) {
+    state.anchorMap[state.anchor] = _result;
+  }
+
+  ch = state.input.charCodeAt(state.position);
+
+  while (ch !== 0) {
+    following = state.input.charCodeAt(state.position + 1);
+    _line = state.line; // Save the current line.
+    _pos = state.position;
+
+    //
+    // Explicit notation case. There are two separate blocks:
+    // first for the key (denoted by "?") and second for the value (denoted by ":")
+    //
+    if ((ch === 0x3F/* ? */ || ch === 0x3A/* : */) && is_WS_OR_EOL(following)) {
+
+      if (ch === 0x3F/* ? */) {
+        if (atExplicitKey) {
+          storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null);
+          keyTag = keyNode = valueNode = null;
+        }
+
+        detected = true;
+        atExplicitKey = true;
+        allowCompact = true;
+
+      } else if (atExplicitKey) {
+        // i.e. 0x3A/* : */ === character after the explicit key.
+        atExplicitKey = false;
+        allowCompact = true;
+
+      } else {
+        throwError(state, 'incomplete explicit mapping pair; a key node is missed');
+      }
+
+      state.position += 1;
+      ch = following;
+
+    //
+    // Implicit notation case. Flow-style node as the key first, then ":", and the value.
+    //
+    } else if (composeNode(state, flowIndent, CONTEXT_FLOW_OUT, false, true)) {
+
+      if (state.line === _line) {
+        ch = state.input.charCodeAt(state.position);
+
+        while (is_WHITE_SPACE(ch)) {
+          ch = state.input.charCodeAt(++state.position);
+        }
+
+        if (ch === 0x3A/* : */) {
+          ch = state.input.charCodeAt(++state.position);
+
+          if (!is_WS_OR_EOL(ch)) {
+            throwError(state, 'a whitespace character is expected after the key-value separator within a block mapping');
+          }
+
+          if (atExplicitKey) {
+            storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null);
+            keyTag = keyNode = valueNode = null;
+          }
+
+          detected = true;
+          atExplicitKey = false;
+          allowCompact = false;
+          keyTag = state.tag;
+          keyNode = state.result;
+
+        } else if (detected) {
+          throwError(state, 'can not read an implicit mapping pair; a colon is missed');
+
+        } else {
+          state.tag = _tag;
+          state.anchor = _anchor;
+          return true; // Keep the result of `composeNode`.
+        }
+
+      } else if (detected) {
+        throwError(state, 'can not read a block mapping entry; a multiline key may not be an implicit key');
+
+      } else {
+        state.tag = _tag;
+        state.anchor = _anchor;
+        return true; // Keep the result of `composeNode`.
+      }
+
+    } else {
+      break; // Reading is done. Go to the epilogue.
+    }
+
+    //
+    // Common reading code for both explicit and implicit notations.
+    //
+    if (state.line === _line || state.lineIndent > nodeIndent) {
+      if (composeNode(state, nodeIndent, CONTEXT_BLOCK_OUT, true, allowCompact)) {
+        if (atExplicitKey) {
+          keyNode = state.result;
+        } else {
+          valueNode = state.result;
+        }
+      }
+
+      if (!atExplicitKey) {
+        storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, _line, _pos);
+        keyTag = keyNode = valueNode = null;
+      }
+
+      skipSeparationSpace(state, true, -1);
+      ch = state.input.charCodeAt(state.position);
+    }
+
+    if (state.lineIndent > nodeIndent && (ch !== 0)) {
+      throwError(state, 'bad indentation of a mapping entry');
+    } else if (state.lineIndent < nodeIndent) {
+      break;
+    }
+  }
+
+  //
+  // Epilogue.
+  //
+
+  // Special case: last mapping's node contains only the key in explicit notation.
+  if (atExplicitKey) {
+    storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null);
+  }
+
+  // Expose the resulting mapping.
+  if (detected) {
+    state.tag = _tag;
+    state.anchor = _anchor;
+    state.kind = 'mapping';
+    state.result = _result;
+  }
+
+  return detected;
+}
+
+function readTagProperty(state) {
+  var _position,
+      isVerbatim = false,
+      isNamed    = false,
+      tagHandle,
+      tagName,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x21/* ! */) return false;
+
+  if (state.tag !== null) {
+    throwError(state, 'duplication of a tag property');
+  }
+
+  ch = state.input.charCodeAt(++state.position);
+
+  if (ch === 0x3C/* < */) {
+    isVerbatim = true;
+    ch = state.input.charCodeAt(++state.position);
+
+  } else if (ch === 0x21/* ! */) {
+    isNamed = true;
+    tagHandle = '!!';
+    ch = state.input.charCodeAt(++state.position);
+
+  } else {
+    tagHandle = '!';
+  }
+
+  _position = state.position;
+
+  if (isVerbatim) {
+    do { ch = state.input.charCodeAt(++state.position); }
+    while (ch !== 0 && ch !== 0x3E/* > */);
+
+    if (state.position < state.length) {
+      tagName = state.input.slice(_position, state.position);
+      ch = state.input.charCodeAt(++state.position);
+    } else {
+      throwError(state, 'unexpected end of the stream within a verbatim tag');
+    }
+  } else {
+    while (ch !== 0 && !is_WS_OR_EOL(ch)) {
+
+      if (ch === 0x21/* ! */) {
+        if (!isNamed) {
+          tagHandle = state.input.slice(_position - 1, state.position + 1);
+
+          if (!PATTERN_TAG_HANDLE.test(tagHandle)) {
+            throwError(state, 'named tag handle cannot contain such characters');
+          }
+
+          isNamed = true;
+          _position = state.position + 1;
+        } else {
+          throwError(state, 'tag suffix cannot contain exclamation marks');
+        }
+      }
+
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    tagName = state.input.slice(_position, state.position);
+
+    if (PATTERN_FLOW_INDICATORS.test(tagName)) {
+      throwError(state, 'tag suffix cannot contain flow indicator characters');
+    }
+  }
+
+  if (tagName && !PATTERN_TAG_URI.test(tagName)) {
+    throwError(state, 'tag name cannot contain such characters: ' + tagName);
+  }
+
+  if (isVerbatim) {
+    state.tag = tagName;
+
+  } else if (_hasOwnProperty.call(state.tagMap, tagHandle)) {
+    state.tag = state.tagMap[tagHandle] + tagName;
+
+  } else if (tagHandle === '!') {
+    state.tag = '!' + tagName;
+
+  } else if (tagHandle === '!!') {
+    state.tag = 'tag:yaml.org,2002:' + tagName;
+
+  } else {
+    throwError(state, 'undeclared tag handle "' + tagHandle + '"');
+  }
+
+  return true;
+}
+
+function readAnchorProperty(state) {
+  var _position,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x26/* & */) return false;
+
+  if (state.anchor !== null) {
+    throwError(state, 'duplication of an anchor property');
+  }
+
+  ch = state.input.charCodeAt(++state.position);
+  _position = state.position;
+
+  while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {
+    ch = state.input.charCodeAt(++state.position);
+  }
+
+  if (state.position === _position) {
+    throwError(state, 'name of an anchor node must contain at least one character');
+  }
+
+  state.anchor = state.input.slice(_position, state.position);
+  return true;
+}
+
+function readAlias(state) {
+  var _position, alias,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x2A/* * */) return false;
+
+  ch = state.input.charCodeAt(++state.position);
+  _position = state.position;
+
+  while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {
+    ch = state.input.charCodeAt(++state.position);
+  }
+
+  if (state.position === _position) {
+    throwError(state, 'name of an alias node must contain at least one character');
+  }
+
+  alias = state.input.slice(_position, state.position);
+
+  if (!state.anchorMap.hasOwnProperty(alias)) {
+    throwError(state, 'unidentified alias "' + alias + '"');
+  }
+
+  state.result = state.anchorMap[alias];
+  skipSeparationSpace(state, true, -1);
+  return true;
+}
+
+function composeNode(state, parentIndent, nodeContext, allowToSeek, allowCompact) {
+  var allowBlockStyles,
+      allowBlockScalars,
+      allowBlockCollections,
+      indentStatus = 1, // 1: this>parent, 0: this=parent, -1: this<parent
+      atNewLine  = false,
+      hasContent = false,
+      typeIndex,
+      typeQuantity,
+      type,
+      flowIndent,
+      blockIndent;
+
+  if (state.listener !== null) {
+    state.listener('open', state);
+  }
+
+  state.tag    = null;
+  state.anchor = null;
+  state.kind   = null;
+  state.result = null;
+
+  allowBlockStyles = allowBlockScalars = allowBlockCollections =
+    CONTEXT_BLOCK_OUT === nodeContext ||
+    CONTEXT_BLOCK_IN  === nodeContext;
+
+  if (allowToSeek) {
+    if (skipSeparationSpace(state, true, -1)) {
+      atNewLine = true;
+
+      if (state.lineIndent > parentIndent) {
+        indentStatus = 1;
+      } else if (state.lineIndent === parentIndent) {
+        indentStatus = 0;
+      } else if (state.lineIndent < parentIndent) {
+        indentStatus = -1;
+      }
+    }
+  }
+
+  if (indentStatus === 1) {
+    while (readTagProperty(state) || readAnchorProperty(state)) {
+      if (skipSeparationSpace(state, true, -1)) {
+        atNewLine = true;
+        allowBlockCollections = allowBlockStyles;
+
+        if (state.lineIndent > parentIndent) {
+          indentStatus = 1;
+        } else if (state.lineIndent === parentIndent) {
+          indentStatus = 0;
+        } else if (state.lineIndent < parentIndent) {
+          indentStatus = -1;
+        }
+      } else {
+        allowBlockCollections = false;
+      }
+    }
+  }
+
+  if (allowBlockCollections) {
+    allowBlockCollections = atNewLine || allowCompact;
+  }
+
+  if (indentStatus === 1 || CONTEXT_BLOCK_OUT === nodeContext) {
+    if (CONTEXT_FLOW_IN === nodeContext || CONTEXT_FLOW_OUT === nodeContext) {
+      flowIndent = parentIndent;
+    } else {
+      flowIndent = parentIndent + 1;
+    }
+
+    blockIndent = state.position - state.lineStart;
+
+    if (indentStatus === 1) {
+      if (allowBlockCollections &&
+          (readBlockSequence(state, blockIndent) ||
+           readBlockMapping(state, blockIndent, flowIndent)) ||
+          readFlowCollection(state, flowIndent)) {
+        hasContent = true;
+      } else {
+        if ((allowBlockScalars && readBlockScalar(state, flowIndent)) ||
+            readSingleQuotedScalar(state, flowIndent) ||
+            readDoubleQuotedScalar(state, flowIndent)) {
+          hasContent = true;
+
+        } else if (readAlias(state)) {
+          hasContent = true;
+
+          if (state.tag !== null || state.anchor !== null) {
+            throwError(state, 'alias node should not have any properties');
+          }
+
+        } else if (readPlainScalar(state, flowIndent, CONTEXT_FLOW_IN === nodeContext)) {
+          hasContent = true;
+
+          if (state.tag === null) {
+            state.tag = '?';
+          }
+        }
+
+        if (state.anchor !== null) {
+          state.anchorMap[state.anchor] = state.result;
+        }
+      }
+    } else if (indentStatus === 0) {
+      // Special case: block sequences are allowed to have same indentation level as the parent.
+      // http://www.yaml.org/spec/1.2/spec.html#id2799784
+      hasContent = allowBlockCollections && readBlockSequence(state, blockIndent);
+    }
+  }
+
+  if (state.tag !== null && state.tag !== '!') {
+    if (state.tag === '?') {
+      for (typeIndex = 0, typeQuantity = state.implicitTypes.length;
+           typeIndex < typeQuantity;
+           typeIndex += 1) {
+        type = state.implicitTypes[typeIndex];
+
+        // Implicit resolving is not allowed for non-scalar types, and '?'
+        // non-specific tag is only assigned to plain scalars. So, it isn't
+        // needed to check for 'kind' conformity.
+
+        if (type.resolve(state.result)) { // `state.result` updated in resolver if matched
+          state.result = type.construct(state.result);
+          state.tag = type.tag;
+          if (state.anchor !== null) {
+            state.anchorMap[state.anchor] = state.result;
+          }
+          break;
+        }
+      }
+    } else if (_hasOwnProperty.call(state.typeMap[state.kind || 'fallback'], state.tag)) {
+      type = state.typeMap[state.kind || 'fallback'][state.tag];
+
+      if (state.result !== null && type.kind !== state.kind) {
+        throwError(state, 'unacceptable node kind for !<' + state.tag + '> tag; it should be "' + type.kind + '", not "' + state.kind + '"');
+      }
+
+      if (!type.resolve(state.result)) { // `state.result` updated in resolver if matched
+        throwError(state, 'cannot resolve a node with !<' + state.tag + '> explicit tag');
+      } else {
+        state.result = type.construct(state.result);
+        if (state.anchor !== null) {
+          state.anchorMap[state.anchor] = state.result;
+        }
+      }
+    } else {
+      throwError(state, 'unknown tag !<' + state.tag + '>');
+    }
+  }
+
+  if (state.listener !== null) {
+    state.listener('close', state);
+  }
+  return state.tag !== null ||  state.anchor !== null || hasContent;
+}
+
+function readDocument(state) {
+  var documentStart = state.position,
+      _position,
+      directiveName,
+      directiveArgs,
+      hasDirectives = false,
+      ch;
+
+  state.version = null;
+  state.checkLineBreaks = state.legacy;
+  state.tagMap = {};
+  state.anchorMap = {};
+
+  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
+    skipSeparationSpace(state, true, -1);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if (state.lineIndent > 0 || ch !== 0x25/* % */) {
+      break;
+    }
+
+    hasDirectives = true;
+    ch = state.input.charCodeAt(++state.position);
+    _position = state.position;
+
+    while (ch !== 0 && !is_WS_OR_EOL(ch)) {
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    directiveName = state.input.slice(_position, state.position);
+    directiveArgs = [];
+
+    if (directiveName.length < 1) {
+      throwError(state, 'directive name must not be less than one character in length');
+    }
+
+    while (ch !== 0) {
+      while (is_WHITE_SPACE(ch)) {
+        ch = state.input.charCodeAt(++state.position);
+      }
+
+      if (ch === 0x23/* # */) {
+        do { ch = state.input.charCodeAt(++state.position); }
+        while (ch !== 0 && !is_EOL(ch));
+        break;
+      }
+
+      if (is_EOL(ch)) break;
+
+      _position = state.position;
+
+      while (ch !== 0 && !is_WS_OR_EOL(ch)) {
+        ch = state.input.charCodeAt(++state.position);
+      }
+
+      directiveArgs.push(state.input.slice(_position, state.position));
+    }
+
+    if (ch !== 0) readLineBreak(state);
+
+    if (_hasOwnProperty.call(directiveHandlers, directiveName)) {
+      directiveHandlers[directiveName](state, directiveName, directiveArgs);
+    } else {
+      throwWarning(state, 'unknown document directive "' + directiveName + '"');
+    }
+  }
+
+  skipSeparationSpace(state, true, -1);
+
+  if (state.lineIndent === 0 &&
+      state.input.charCodeAt(state.position)     === 0x2D/* - */ &&
+      state.input.charCodeAt(state.position + 1) === 0x2D/* - */ &&
+      state.input.charCodeAt(state.position + 2) === 0x2D/* - */) {
+    state.position += 3;
+    skipSeparationSpace(state, true, -1);
+
+  } else if (hasDirectives) {
+    throwError(state, 'directives end mark is expected');
+  }
+
+  composeNode(state, state.lineIndent - 1, CONTEXT_BLOCK_OUT, false, true);
+  skipSeparationSpace(state, true, -1);
+
+  if (state.checkLineBreaks &&
+      PATTERN_NON_ASCII_LINE_BREAKS.test(state.input.slice(documentStart, state.position))) {
+    throwWarning(state, 'non-ASCII line breaks are interpreted as content');
+  }
+
+  state.documents.push(state.result);
+
+  if (state.position === state.lineStart && testDocumentSeparator(state)) {
+
+    if (state.input.charCodeAt(state.position) === 0x2E/* . */) {
+      state.position += 3;
+      skipSeparationSpace(state, true, -1);
+    }
+    return;
+  }
+
+  if (state.position < (state.length - 1)) {
+    throwError(state, 'end of the stream or a document separator is expected');
+  } else {
+    return;
+  }
+}
+
+
+function loadDocuments(input, options) {
+  input = String(input);
+  options = options || {};
+
+  if (input.length !== 0) {
+
+    // Add tailing `\n` if not exists
+    if (input.charCodeAt(input.length - 1) !== 0x0A/* LF */ &&
+        input.charCodeAt(input.length - 1) !== 0x0D/* CR */) {
+      input += '\n';
+    }
+
+    // Strip BOM
+    if (input.charCodeAt(0) === 0xFEFF) {
+      input = input.slice(1);
+    }
+  }
+
+  var state = new State(input, options);
+
+  // Use 0 as string terminator. That significantly simplifies bounds check.
+  state.input += '\0';
+
+  while (state.input.charCodeAt(state.position) === 0x20/* Space */) {
+    state.lineIndent += 1;
+    state.position += 1;
+  }
+
+  while (state.position < (state.length - 1)) {
+    readDocument(state);
+  }
+
+  return state.documents;
+}
+
+
+function loadAll(input, iterator, options) {
+  var documents = loadDocuments(input, options), index, length;
+
+  for (index = 0, length = documents.length; index < length; index += 1) {
+    iterator(documents[index]);
+  }
+}
+
+
+function load(input, options) {
+  var documents = loadDocuments(input, options);
+
+  if (documents.length === 0) {
+    /*eslint-disable no-undefined*/
+    return undefined;
+  } else if (documents.length === 1) {
+    return documents[0];
+  }
+  throw new YAMLException('expected a single document in the stream, but found more');
+}
+
+
+function safeLoadAll(input, output, options) {
+  loadAll(input, output, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
+}
+
+
+function safeLoad(input, options) {
+  return load(input, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
+}
+
+
+module.exports.loadAll     = loadAll;
+module.exports.load        = load;
+module.exports.safeLoadAll = safeLoadAll;
+module.exports.safeLoad    = safeLoad;
diff --git a/node_modules/js-yaml/lib/js-yaml/mark.js b/node_modules/js-yaml/lib/js-yaml/mark.js
new file mode 100644
index 000000000..47b265c20
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/mark.js
@@ -0,0 +1,76 @@
+'use strict';
+
+
+var common = require('./common');
+
+
+function Mark(name, buffer, position, line, column) {
+  this.name     = name;
+  this.buffer   = buffer;
+  this.position = position;
+  this.line     = line;
+  this.column   = column;
+}
+
+
+Mark.prototype.getSnippet = function getSnippet(indent, maxLength) {
+  var head, start, tail, end, snippet;
+
+  if (!this.buffer) return null;
+
+  indent = indent || 4;
+  maxLength = maxLength || 75;
+
+  head = '';
+  start = this.position;
+
+  while (start > 0 && '\x00\r\n\x85\u2028\u2029'.indexOf(this.buffer.charAt(start - 1)) === -1) {
+    start -= 1;
+    if (this.position - start > (maxLength / 2 - 1)) {
+      head = ' ... ';
+      start += 5;
+      break;
+    }
+  }
+
+  tail = '';
+  end = this.position;
+
+  while (end < this.buffer.length && '\x00\r\n\x85\u2028\u2029'.indexOf(this.buffer.charAt(end)) === -1) {
+    end += 1;
+    if (end - this.position > (maxLength / 2 - 1)) {
+      tail = ' ... ';
+      end -= 5;
+      break;
+    }
+  }
+
+  snippet = this.buffer.slice(start, end);
+
+  return common.repeat(' ', indent) + head + snippet + tail + '\n' +
+         common.repeat(' ', indent + this.position - start + head.length) + '^';
+};
+
+
+Mark.prototype.toString = function toString(compact) {
+  var snippet, where = '';
+
+  if (this.name) {
+    where += 'in "' + this.name + '" ';
+  }
+
+  where += 'at line ' + (this.line + 1) + ', column ' + (this.column + 1);
+
+  if (!compact) {
+    snippet = this.getSnippet();
+
+    if (snippet) {
+      where += ':\n' + snippet;
+    }
+  }
+
+  return where;
+};
+
+
+module.exports = Mark;
diff --git a/node_modules/js-yaml/lib/js-yaml/schema.js b/node_modules/js-yaml/lib/js-yaml/schema.js
new file mode 100644
index 000000000..ca7cf47e7
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/schema.js
@@ -0,0 +1,108 @@
+'use strict';
+
+/*eslint-disable max-len*/
+
+var common        = require('./common');
+var YAMLException = require('./exception');
+var Type          = require('./type');
+
+
+function compileList(schema, name, result) {
+  var exclude = [];
+
+  schema.include.forEach(function (includedSchema) {
+    result = compileList(includedSchema, name, result);
+  });
+
+  schema[name].forEach(function (currentType) {
+    result.forEach(function (previousType, previousIndex) {
+      if (previousType.tag === currentType.tag && previousType.kind === currentType.kind) {
+        exclude.push(previousIndex);
+      }
+    });
+
+    result.push(currentType);
+  });
+
+  return result.filter(function (type, index) {
+    return exclude.indexOf(index) === -1;
+  });
+}
+
+
+function compileMap(/* lists... */) {
+  var result = {
+        scalar: {},
+        sequence: {},
+        mapping: {},
+        fallback: {}
+      }, index, length;
+
+  function collectType(type) {
+    result[type.kind][type.tag] = result['fallback'][type.tag] = type;
+  }
+
+  for (index = 0, length = arguments.length; index < length; index += 1) {
+    arguments[index].forEach(collectType);
+  }
+  return result;
+}
+
+
+function Schema(definition) {
+  this.include  = definition.include  || [];
+  this.implicit = definition.implicit || [];
+  this.explicit = definition.explicit || [];
+
+  this.implicit.forEach(function (type) {
+    if (type.loadKind && type.loadKind !== 'scalar') {
+      throw new YAMLException('There is a non-scalar type in the implicit list of a schema. Implicit resolving of such types is not supported.');
+    }
+  });
+
+  this.compiledImplicit = compileList(this, 'implicit', []);
+  this.compiledExplicit = compileList(this, 'explicit', []);
+  this.compiledTypeMap  = compileMap(this.compiledImplicit, this.compiledExplicit);
+}
+
+
+Schema.DEFAULT = null;
+
+
+Schema.create = function createSchema() {
+  var schemas, types;
+
+  switch (arguments.length) {
+    case 1:
+      schemas = Schema.DEFAULT;
+      types = arguments[0];
+      break;
+
+    case 2:
+      schemas = arguments[0];
+      types = arguments[1];
+      break;
+
+    default:
+      throw new YAMLException('Wrong number of arguments for Schema.create function');
+  }
+
+  schemas = common.toArray(schemas);
+  types = common.toArray(types);
+
+  if (!schemas.every(function (schema) { return schema instanceof Schema; })) {
+    throw new YAMLException('Specified list of super schemas (or a single Schema object) contains a non-Schema object.');
+  }
+
+  if (!types.every(function (type) { return type instanceof Type; })) {
+    throw new YAMLException('Specified list of YAML types (or a single Type object) contains a non-Type object.');
+  }
+
+  return new Schema({
+    include: schemas,
+    explicit: types
+  });
+};
+
+
+module.exports = Schema;
diff --git a/node_modules/js-yaml/lib/js-yaml/schema/core.js b/node_modules/js-yaml/lib/js-yaml/schema/core.js
new file mode 100644
index 000000000..206daab56
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/schema/core.js
@@ -0,0 +1,18 @@
+// Standard YAML's Core schema.
+// http://www.yaml.org/spec/1.2/spec.html#id2804923
+//
+// NOTE: JS-YAML does not support schema-specific tag resolution restrictions.
+// So, Core schema has no distinctions from JSON schema is JS-YAML.
+
+
+'use strict';
+
+
+var Schema = require('../schema');
+
+
+module.exports = new Schema({
+  include: [
+    require('./json')
+  ]
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/schema/default_full.js b/node_modules/js-yaml/lib/js-yaml/schema/default_full.js
new file mode 100644
index 000000000..a55ef42ac
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/schema/default_full.js
@@ -0,0 +1,25 @@
+// JS-YAML's default schema for `load` function.
+// It is not described in the YAML specification.
+//
+// This schema is based on JS-YAML's default safe schema and includes
+// JavaScript-specific types: !!js/undefined, !!js/regexp and !!js/function.
+//
+// Also this schema is used as default base schema at `Schema.create` function.
+
+
+'use strict';
+
+
+var Schema = require('../schema');
+
+
+module.exports = Schema.DEFAULT = new Schema({
+  include: [
+    require('./default_safe')
+  ],
+  explicit: [
+    require('../type/js/undefined'),
+    require('../type/js/regexp'),
+    require('../type/js/function')
+  ]
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/schema/default_safe.js b/node_modules/js-yaml/lib/js-yaml/schema/default_safe.js
new file mode 100644
index 000000000..11d89bbfb
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/schema/default_safe.js
@@ -0,0 +1,28 @@
+// JS-YAML's default schema for `safeLoad` function.
+// It is not described in the YAML specification.
+//
+// This schema is based on standard YAML's Core schema and includes most of
+// extra types described at YAML tag repository. (http://yaml.org/type/)
+
+
+'use strict';
+
+
+var Schema = require('../schema');
+
+
+module.exports = new Schema({
+  include: [
+    require('./core')
+  ],
+  implicit: [
+    require('../type/timestamp'),
+    require('../type/merge')
+  ],
+  explicit: [
+    require('../type/binary'),
+    require('../type/omap'),
+    require('../type/pairs'),
+    require('../type/set')
+  ]
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/schema/failsafe.js b/node_modules/js-yaml/lib/js-yaml/schema/failsafe.js
new file mode 100644
index 000000000..b7a33eb7a
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/schema/failsafe.js
@@ -0,0 +1,17 @@
+// Standard YAML's Failsafe schema.
+// http://www.yaml.org/spec/1.2/spec.html#id2802346
+
+
+'use strict';
+
+
+var Schema = require('../schema');
+
+
+module.exports = new Schema({
+  explicit: [
+    require('../type/str'),
+    require('../type/seq'),
+    require('../type/map')
+  ]
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/schema/json.js b/node_modules/js-yaml/lib/js-yaml/schema/json.js
new file mode 100644
index 000000000..5be3dbf80
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/schema/json.js
@@ -0,0 +1,25 @@
+// Standard YAML's JSON schema.
+// http://www.yaml.org/spec/1.2/spec.html#id2803231
+//
+// NOTE: JS-YAML does not support schema-specific tag resolution restrictions.
+// So, this schema is not such strict as defined in the YAML specification.
+// It allows numbers in binary notaion, use `Null` and `NULL` as `null`, etc.
+
+
+'use strict';
+
+
+var Schema = require('../schema');
+
+
+module.exports = new Schema({
+  include: [
+    require('./failsafe')
+  ],
+  implicit: [
+    require('../type/null'),
+    require('../type/bool'),
+    require('../type/int'),
+    require('../type/float')
+  ]
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type.js b/node_modules/js-yaml/lib/js-yaml/type.js
new file mode 100644
index 000000000..90b702ac0
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type.js
@@ -0,0 +1,61 @@
+'use strict';
+
+var YAMLException = require('./exception');
+
+var TYPE_CONSTRUCTOR_OPTIONS = [
+  'kind',
+  'resolve',
+  'construct',
+  'instanceOf',
+  'predicate',
+  'represent',
+  'defaultStyle',
+  'styleAliases'
+];
+
+var YAML_NODE_KINDS = [
+  'scalar',
+  'sequence',
+  'mapping'
+];
+
+function compileStyleAliases(map) {
+  var result = {};
+
+  if (map !== null) {
+    Object.keys(map).forEach(function (style) {
+      map[style].forEach(function (alias) {
+        result[String(alias)] = style;
+      });
+    });
+  }
+
+  return result;
+}
+
+function Type(tag, options) {
+  options = options || {};
+
+  Object.keys(options).forEach(function (name) {
+    if (TYPE_CONSTRUCTOR_OPTIONS.indexOf(name) === -1) {
+      throw new YAMLException('Unknown option "' + name + '" is met in definition of "' + tag + '" YAML type.');
+    }
+  });
+
+  // TODO: Add tag format check.
+  this.tag          = tag;
+  this.kind         = options['kind']         || null;
+  this.resolve      = options['resolve']      || function () { return true; };
+  this.construct    = options['construct']    || function (data) { return data; };
+  this.instanceOf   = options['instanceOf']   || null;
+  this.predicate    = options['predicate']    || null;
+  this.represent    = options['represent']    || null;
+  this.defaultStyle = options['defaultStyle'] || null;
+  this.styleAliases = compileStyleAliases(options['styleAliases'] || null);
+
+  if (YAML_NODE_KINDS.indexOf(this.kind) === -1) {
+    throw new YAMLException('Unknown kind "' + this.kind + '" is specified for "' + tag + '" YAML type.');
+  }
+}
+
+module.exports = Type;
diff --git a/node_modules/js-yaml/lib/js-yaml/type/binary.js b/node_modules/js-yaml/lib/js-yaml/type/binary.js
new file mode 100644
index 000000000..10b187559
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/binary.js
@@ -0,0 +1,138 @@
+'use strict';
+
+/*eslint-disable no-bitwise*/
+
+var NodeBuffer;
+
+try {
+  // A trick for browserified version, to not include `Buffer` shim
+  var _require = require;
+  NodeBuffer = _require('buffer').Buffer;
+} catch (__) {}
+
+var Type       = require('../type');
+
+
+// [ 64, 65, 66 ] -> [ padding, CR, LF ]
+var BASE64_MAP = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=\n\r';
+
+
+function resolveYamlBinary(data) {
+  if (data === null) return false;
+
+  var code, idx, bitlen = 0, max = data.length, map = BASE64_MAP;
+
+  // Convert one by one.
+  for (idx = 0; idx < max; idx++) {
+    code = map.indexOf(data.charAt(idx));
+
+    // Skip CR/LF
+    if (code > 64) continue;
+
+    // Fail on illegal characters
+    if (code < 0) return false;
+
+    bitlen += 6;
+  }
+
+  // If there are any bits left, source was corrupted
+  return (bitlen % 8) === 0;
+}
+
+function constructYamlBinary(data) {
+  var idx, tailbits,
+      input = data.replace(/[\r\n=]/g, ''), // remove CR/LF & padding to simplify scan
+      max = input.length,
+      map = BASE64_MAP,
+      bits = 0,
+      result = [];
+
+  // Collect by 6*4 bits (3 bytes)
+
+  for (idx = 0; idx < max; idx++) {
+    if ((idx % 4 === 0) && idx) {
+      result.push((bits >> 16) & 0xFF);
+      result.push((bits >> 8) & 0xFF);
+      result.push(bits & 0xFF);
+    }
+
+    bits = (bits << 6) | map.indexOf(input.charAt(idx));
+  }
+
+  // Dump tail
+
+  tailbits = (max % 4) * 6;
+
+  if (tailbits === 0) {
+    result.push((bits >> 16) & 0xFF);
+    result.push((bits >> 8) & 0xFF);
+    result.push(bits & 0xFF);
+  } else if (tailbits === 18) {
+    result.push((bits >> 10) & 0xFF);
+    result.push((bits >> 2) & 0xFF);
+  } else if (tailbits === 12) {
+    result.push((bits >> 4) & 0xFF);
+  }
+
+  // Wrap into Buffer for NodeJS and leave Array for browser
+  if (NodeBuffer) {
+    // Support node 6.+ Buffer API when available
+    return NodeBuffer.from ? NodeBuffer.from(result) : new NodeBuffer(result);
+  }
+
+  return result;
+}
+
+function representYamlBinary(object /*, style*/) {
+  var result = '', bits = 0, idx, tail,
+      max = object.length,
+      map = BASE64_MAP;
+
+  // Convert every three bytes to 4 ASCII characters.
+
+  for (idx = 0; idx < max; idx++) {
+    if ((idx % 3 === 0) && idx) {
+      result += map[(bits >> 18) & 0x3F];
+      result += map[(bits >> 12) & 0x3F];
+      result += map[(bits >> 6) & 0x3F];
+      result += map[bits & 0x3F];
+    }
+
+    bits = (bits << 8) + object[idx];
+  }
+
+  // Dump tail
+
+  tail = max % 3;
+
+  if (tail === 0) {
+    result += map[(bits >> 18) & 0x3F];
+    result += map[(bits >> 12) & 0x3F];
+    result += map[(bits >> 6) & 0x3F];
+    result += map[bits & 0x3F];
+  } else if (tail === 2) {
+    result += map[(bits >> 10) & 0x3F];
+    result += map[(bits >> 4) & 0x3F];
+    result += map[(bits << 2) & 0x3F];
+    result += map[64];
+  } else if (tail === 1) {
+    result += map[(bits >> 2) & 0x3F];
+    result += map[(bits << 4) & 0x3F];
+    result += map[64];
+    result += map[64];
+  }
+
+  return result;
+}
+
+function isBinary(object) {
+  return NodeBuffer && NodeBuffer.isBuffer(object);
+}
+
+module.exports = new Type('tag:yaml.org,2002:binary', {
+  kind: 'scalar',
+  resolve: resolveYamlBinary,
+  construct: constructYamlBinary,
+  predicate: isBinary,
+  represent: representYamlBinary
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/bool.js b/node_modules/js-yaml/lib/js-yaml/type/bool.js
new file mode 100644
index 000000000..cb7745930
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/bool.js
@@ -0,0 +1,35 @@
+'use strict';
+
+var Type = require('../type');
+
+function resolveYamlBoolean(data) {
+  if (data === null) return false;
+
+  var max = data.length;
+
+  return (max === 4 && (data === 'true' || data === 'True' || data === 'TRUE')) ||
+         (max === 5 && (data === 'false' || data === 'False' || data === 'FALSE'));
+}
+
+function constructYamlBoolean(data) {
+  return data === 'true' ||
+         data === 'True' ||
+         data === 'TRUE';
+}
+
+function isBoolean(object) {
+  return Object.prototype.toString.call(object) === '[object Boolean]';
+}
+
+module.exports = new Type('tag:yaml.org,2002:bool', {
+  kind: 'scalar',
+  resolve: resolveYamlBoolean,
+  construct: constructYamlBoolean,
+  predicate: isBoolean,
+  represent: {
+    lowercase: function (object) { return object ? 'true' : 'false'; },
+    uppercase: function (object) { return object ? 'TRUE' : 'FALSE'; },
+    camelcase: function (object) { return object ? 'True' : 'False'; }
+  },
+  defaultStyle: 'lowercase'
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/float.js b/node_modules/js-yaml/lib/js-yaml/type/float.js
new file mode 100644
index 000000000..127671b21
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/float.js
@@ -0,0 +1,116 @@
+'use strict';
+
+var common = require('../common');
+var Type   = require('../type');
+
+var YAML_FLOAT_PATTERN = new RegExp(
+  // 2.5e4, 2.5 and integers
+  '^(?:[-+]?(?:0|[1-9][0-9_]*)(?:\\.[0-9_]*)?(?:[eE][-+]?[0-9]+)?' +
+  // .2e4, .2
+  // special case, seems not from spec
+  '|\\.[0-9_]+(?:[eE][-+]?[0-9]+)?' +
+  // 20:59
+  '|[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+\\.[0-9_]*' +
+  // .inf
+  '|[-+]?\\.(?:inf|Inf|INF)' +
+  // .nan
+  '|\\.(?:nan|NaN|NAN))$');
+
+function resolveYamlFloat(data) {
+  if (data === null) return false;
+
+  if (!YAML_FLOAT_PATTERN.test(data) ||
+      // Quick hack to not allow integers end with `_`
+      // Probably should update regexp & check speed
+      data[data.length - 1] === '_') {
+    return false;
+  }
+
+  return true;
+}
+
+function constructYamlFloat(data) {
+  var value, sign, base, digits;
+
+  value  = data.replace(/_/g, '').toLowerCase();
+  sign   = value[0] === '-' ? -1 : 1;
+  digits = [];
+
+  if ('+-'.indexOf(value[0]) >= 0) {
+    value = value.slice(1);
+  }
+
+  if (value === '.inf') {
+    return (sign === 1) ? Number.POSITIVE_INFINITY : Number.NEGATIVE_INFINITY;
+
+  } else if (value === '.nan') {
+    return NaN;
+
+  } else if (value.indexOf(':') >= 0) {
+    value.split(':').forEach(function (v) {
+      digits.unshift(parseFloat(v, 10));
+    });
+
+    value = 0.0;
+    base = 1;
+
+    digits.forEach(function (d) {
+      value += d * base;
+      base *= 60;
+    });
+
+    return sign * value;
+
+  }
+  return sign * parseFloat(value, 10);
+}
+
+
+var SCIENTIFIC_WITHOUT_DOT = /^[-+]?[0-9]+e/;
+
+function representYamlFloat(object, style) {
+  var res;
+
+  if (isNaN(object)) {
+    switch (style) {
+      case 'lowercase': return '.nan';
+      case 'uppercase': return '.NAN';
+      case 'camelcase': return '.NaN';
+    }
+  } else if (Number.POSITIVE_INFINITY === object) {
+    switch (style) {
+      case 'lowercase': return '.inf';
+      case 'uppercase': return '.INF';
+      case 'camelcase': return '.Inf';
+    }
+  } else if (Number.NEGATIVE_INFINITY === object) {
+    switch (style) {
+      case 'lowercase': return '-.inf';
+      case 'uppercase': return '-.INF';
+      case 'camelcase': return '-.Inf';
+    }
+  } else if (common.isNegativeZero(object)) {
+    return '-0.0';
+  }
+
+  res = object.toString(10);
+
+  // JS stringifier can build scientific format without dots: 5e-100,
+  // while YAML requres dot: 5.e-100. Fix it with simple hack
+
+  return SCIENTIFIC_WITHOUT_DOT.test(res) ? res.replace('e', '.e') : res;
+}
+
+function isFloat(object) {
+  return (Object.prototype.toString.call(object) === '[object Number]') &&
+         (object % 1 !== 0 || common.isNegativeZero(object));
+}
+
+module.exports = new Type('tag:yaml.org,2002:float', {
+  kind: 'scalar',
+  resolve: resolveYamlFloat,
+  construct: constructYamlFloat,
+  predicate: isFloat,
+  represent: representYamlFloat,
+  defaultStyle: 'lowercase'
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/int.js b/node_modules/js-yaml/lib/js-yaml/type/int.js
new file mode 100644
index 000000000..4ae522a5a
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/int.js
@@ -0,0 +1,172 @@
+'use strict';
+
+var common = require('../common');
+var Type   = require('../type');
+
+function isHexCode(c) {
+  return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) ||
+         ((0x41/* A */ <= c) && (c <= 0x46/* F */)) ||
+         ((0x61/* a */ <= c) && (c <= 0x66/* f */));
+}
+
+function isOctCode(c) {
+  return ((0x30/* 0 */ <= c) && (c <= 0x37/* 7 */));
+}
+
+function isDecCode(c) {
+  return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */));
+}
+
+function resolveYamlInteger(data) {
+  if (data === null) return false;
+
+  var max = data.length,
+      index = 0,
+      hasDigits = false,
+      ch;
+
+  if (!max) return false;
+
+  ch = data[index];
+
+  // sign
+  if (ch === '-' || ch === '+') {
+    ch = data[++index];
+  }
+
+  if (ch === '0') {
+    // 0
+    if (index + 1 === max) return true;
+    ch = data[++index];
+
+    // base 2, base 8, base 16
+
+    if (ch === 'b') {
+      // base 2
+      index++;
+
+      for (; index < max; index++) {
+        ch = data[index];
+        if (ch === '_') continue;
+        if (ch !== '0' && ch !== '1') return false;
+        hasDigits = true;
+      }
+      return hasDigits && ch !== '_';
+    }
+
+
+    if (ch === 'x') {
+      // base 16
+      index++;
+
+      for (; index < max; index++) {
+        ch = data[index];
+        if (ch === '_') continue;
+        if (!isHexCode(data.charCodeAt(index))) return false;
+        hasDigits = true;
+      }
+      return hasDigits && ch !== '_';
+    }
+
+    // base 8
+    for (; index < max; index++) {
+      ch = data[index];
+      if (ch === '_') continue;
+      if (!isOctCode(data.charCodeAt(index))) return false;
+      hasDigits = true;
+    }
+    return hasDigits && ch !== '_';
+  }
+
+  // base 10 (except 0) or base 60
+
+  // value should not start with `_`;
+  if (ch === '_') return false;
+
+  for (; index < max; index++) {
+    ch = data[index];
+    if (ch === '_') continue;
+    if (ch === ':') break;
+    if (!isDecCode(data.charCodeAt(index))) {
+      return false;
+    }
+    hasDigits = true;
+  }
+
+  // Should have digits and should not end with `_`
+  if (!hasDigits || ch === '_') return false;
+
+  // if !base60 - done;
+  if (ch !== ':') return true;
+
+  // base60 almost not used, no needs to optimize
+  return /^(:[0-5]?[0-9])+$/.test(data.slice(index));
+}
+
+function constructYamlInteger(data) {
+  var value = data, sign = 1, ch, base, digits = [];
+
+  if (value.indexOf('_') !== -1) {
+    value = value.replace(/_/g, '');
+  }
+
+  ch = value[0];
+
+  if (ch === '-' || ch === '+') {
+    if (ch === '-') sign = -1;
+    value = value.slice(1);
+    ch = value[0];
+  }
+
+  if (value === '0') return 0;
+
+  if (ch === '0') {
+    if (value[1] === 'b') return sign * parseInt(value.slice(2), 2);
+    if (value[1] === 'x') return sign * parseInt(value, 16);
+    return sign * parseInt(value, 8);
+  }
+
+  if (value.indexOf(':') !== -1) {
+    value.split(':').forEach(function (v) {
+      digits.unshift(parseInt(v, 10));
+    });
+
+    value = 0;
+    base = 1;
+
+    digits.forEach(function (d) {
+      value += (d * base);
+      base *= 60;
+    });
+
+    return sign * value;
+
+  }
+
+  return sign * parseInt(value, 10);
+}
+
+function isInteger(object) {
+  return (Object.prototype.toString.call(object)) === '[object Number]' &&
+         (object % 1 === 0 && !common.isNegativeZero(object));
+}
+
+module.exports = new Type('tag:yaml.org,2002:int', {
+  kind: 'scalar',
+  resolve: resolveYamlInteger,
+  construct: constructYamlInteger,
+  predicate: isInteger,
+  represent: {
+    binary:      function (object) { return '0b' + object.toString(2); },
+    octal:       function (object) { return '0'  + object.toString(8); },
+    decimal:     function (object) { return        object.toString(10); },
+    hexadecimal: function (object) { return '0x' + object.toString(16).toUpperCase(); }
+  },
+  defaultStyle: 'decimal',
+  styleAliases: {
+    binary:      [ 2,  'bin' ],
+    octal:       [ 8,  'oct' ],
+    decimal:     [ 10, 'dec' ],
+    hexadecimal: [ 16, 'hex' ]
+  }
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/js/function.js b/node_modules/js-yaml/lib/js-yaml/type/js/function.js
new file mode 100644
index 000000000..c6a42d002
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/js/function.js
@@ -0,0 +1,84 @@
+'use strict';
+
+var esprima;
+
+// Browserified version does not have esprima
+//
+// 1. For node.js just require module as deps
+// 2. For browser try to require mudule via external AMD system.
+//    If not found - try to fallback to window.esprima. If not
+//    found too - then fail to parse.
+//
+try {
+  // workaround to exclude package from browserify list.
+  var _require = require;
+  esprima = _require('esprima');
+} catch (_) {
+  /*global window */
+  if (typeof window !== 'undefined') esprima = window.esprima;
+}
+
+var Type = require('../../type');
+
+function resolveJavascriptFunction(data) {
+  if (data === null) return false;
+
+  try {
+    var source = '(' + data + ')',
+        ast    = esprima.parse(source, { range: true });
+
+    if (ast.type                    !== 'Program'             ||
+        ast.body.length             !== 1                     ||
+        ast.body[0].type            !== 'ExpressionStatement' ||
+        ast.body[0].expression.type !== 'FunctionExpression') {
+      return false;
+    }
+
+    return true;
+  } catch (err) {
+    return false;
+  }
+}
+
+function constructJavascriptFunction(data) {
+  /*jslint evil:true*/
+
+  var source = '(' + data + ')',
+      ast    = esprima.parse(source, { range: true }),
+      params = [],
+      body;
+
+  if (ast.type                    !== 'Program'             ||
+      ast.body.length             !== 1                     ||
+      ast.body[0].type            !== 'ExpressionStatement' ||
+      ast.body[0].expression.type !== 'FunctionExpression') {
+    throw new Error('Failed to resolve function');
+  }
+
+  ast.body[0].expression.params.forEach(function (param) {
+    params.push(param.name);
+  });
+
+  body = ast.body[0].expression.body.range;
+
+  // Esprima's ranges include the first '{' and the last '}' characters on
+  // function expressions. So cut them out.
+  /*eslint-disable no-new-func*/
+  return new Function(params, source.slice(body[0] + 1, body[1] - 1));
+}
+
+function representJavascriptFunction(object /*, style*/) {
+  return object.toString();
+}
+
+function isFunction(object) {
+  return Object.prototype.toString.call(object) === '[object Function]';
+}
+
+module.exports = new Type('tag:yaml.org,2002:js/function', {
+  kind: 'scalar',
+  resolve: resolveJavascriptFunction,
+  construct: constructJavascriptFunction,
+  predicate: isFunction,
+  represent: representJavascriptFunction
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/js/regexp.js b/node_modules/js-yaml/lib/js-yaml/type/js/regexp.js
new file mode 100644
index 000000000..43fa47017
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/js/regexp.js
@@ -0,0 +1,60 @@
+'use strict';
+
+var Type = require('../../type');
+
+function resolveJavascriptRegExp(data) {
+  if (data === null) return false;
+  if (data.length === 0) return false;
+
+  var regexp = data,
+      tail   = /\/([gim]*)$/.exec(data),
+      modifiers = '';
+
+  // if regexp starts with '/' it can have modifiers and must be properly closed
+  // `/foo/gim` - modifiers tail can be maximum 3 chars
+  if (regexp[0] === '/') {
+    if (tail) modifiers = tail[1];
+
+    if (modifiers.length > 3) return false;
+    // if expression starts with /, is should be properly terminated
+    if (regexp[regexp.length - modifiers.length - 1] !== '/') return false;
+  }
+
+  return true;
+}
+
+function constructJavascriptRegExp(data) {
+  var regexp = data,
+      tail   = /\/([gim]*)$/.exec(data),
+      modifiers = '';
+
+  // `/foo/gim` - tail can be maximum 4 chars
+  if (regexp[0] === '/') {
+    if (tail) modifiers = tail[1];
+    regexp = regexp.slice(1, regexp.length - modifiers.length - 1);
+  }
+
+  return new RegExp(regexp, modifiers);
+}
+
+function representJavascriptRegExp(object /*, style*/) {
+  var result = '/' + object.source + '/';
+
+  if (object.global) result += 'g';
+  if (object.multiline) result += 'm';
+  if (object.ignoreCase) result += 'i';
+
+  return result;
+}
+
+function isRegExp(object) {
+  return Object.prototype.toString.call(object) === '[object RegExp]';
+}
+
+module.exports = new Type('tag:yaml.org,2002:js/regexp', {
+  kind: 'scalar',
+  resolve: resolveJavascriptRegExp,
+  construct: constructJavascriptRegExp,
+  predicate: isRegExp,
+  represent: representJavascriptRegExp
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/js/undefined.js b/node_modules/js-yaml/lib/js-yaml/type/js/undefined.js
new file mode 100644
index 000000000..95b5569fd
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/js/undefined.js
@@ -0,0 +1,28 @@
+'use strict';
+
+var Type = require('../../type');
+
+function resolveJavascriptUndefined() {
+  return true;
+}
+
+function constructJavascriptUndefined() {
+  /*eslint-disable no-undefined*/
+  return undefined;
+}
+
+function representJavascriptUndefined() {
+  return '';
+}
+
+function isUndefined(object) {
+  return typeof object === 'undefined';
+}
+
+module.exports = new Type('tag:yaml.org,2002:js/undefined', {
+  kind: 'scalar',
+  resolve: resolveJavascriptUndefined,
+  construct: constructJavascriptUndefined,
+  predicate: isUndefined,
+  represent: representJavascriptUndefined
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/map.js b/node_modules/js-yaml/lib/js-yaml/type/map.js
new file mode 100644
index 000000000..f327beebd
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/map.js
@@ -0,0 +1,8 @@
+'use strict';
+
+var Type = require('../type');
+
+module.exports = new Type('tag:yaml.org,2002:map', {
+  kind: 'mapping',
+  construct: function (data) { return data !== null ? data : {}; }
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/merge.js b/node_modules/js-yaml/lib/js-yaml/type/merge.js
new file mode 100644
index 000000000..ae08a8644
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/merge.js
@@ -0,0 +1,12 @@
+'use strict';
+
+var Type = require('../type');
+
+function resolveYamlMerge(data) {
+  return data === '<<' || data === null;
+}
+
+module.exports = new Type('tag:yaml.org,2002:merge', {
+  kind: 'scalar',
+  resolve: resolveYamlMerge
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/null.js b/node_modules/js-yaml/lib/js-yaml/type/null.js
new file mode 100644
index 000000000..6874daa64
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/null.js
@@ -0,0 +1,34 @@
+'use strict';
+
+var Type = require('../type');
+
+function resolveYamlNull(data) {
+  if (data === null) return true;
+
+  var max = data.length;
+
+  return (max === 1 && data === '~') ||
+         (max === 4 && (data === 'null' || data === 'Null' || data === 'NULL'));
+}
+
+function constructYamlNull() {
+  return null;
+}
+
+function isNull(object) {
+  return object === null;
+}
+
+module.exports = new Type('tag:yaml.org,2002:null', {
+  kind: 'scalar',
+  resolve: resolveYamlNull,
+  construct: constructYamlNull,
+  predicate: isNull,
+  represent: {
+    canonical: function () { return '~';    },
+    lowercase: function () { return 'null'; },
+    uppercase: function () { return 'NULL'; },
+    camelcase: function () { return 'Null'; }
+  },
+  defaultStyle: 'lowercase'
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/omap.js b/node_modules/js-yaml/lib/js-yaml/type/omap.js
new file mode 100644
index 000000000..b2b5323bd
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/omap.js
@@ -0,0 +1,44 @@
+'use strict';
+
+var Type = require('../type');
+
+var _hasOwnProperty = Object.prototype.hasOwnProperty;
+var _toString       = Object.prototype.toString;
+
+function resolveYamlOmap(data) {
+  if (data === null) return true;
+
+  var objectKeys = [], index, length, pair, pairKey, pairHasKey,
+      object = data;
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    pair = object[index];
+    pairHasKey = false;
+
+    if (_toString.call(pair) !== '[object Object]') return false;
+
+    for (pairKey in pair) {
+      if (_hasOwnProperty.call(pair, pairKey)) {
+        if (!pairHasKey) pairHasKey = true;
+        else return false;
+      }
+    }
+
+    if (!pairHasKey) return false;
+
+    if (objectKeys.indexOf(pairKey) === -1) objectKeys.push(pairKey);
+    else return false;
+  }
+
+  return true;
+}
+
+function constructYamlOmap(data) {
+  return data !== null ? data : [];
+}
+
+module.exports = new Type('tag:yaml.org,2002:omap', {
+  kind: 'sequence',
+  resolve: resolveYamlOmap,
+  construct: constructYamlOmap
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/pairs.js b/node_modules/js-yaml/lib/js-yaml/type/pairs.js
new file mode 100644
index 000000000..74b52403f
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/pairs.js
@@ -0,0 +1,53 @@
+'use strict';
+
+var Type = require('../type');
+
+var _toString = Object.prototype.toString;
+
+function resolveYamlPairs(data) {
+  if (data === null) return true;
+
+  var index, length, pair, keys, result,
+      object = data;
+
+  result = new Array(object.length);
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    pair = object[index];
+
+    if (_toString.call(pair) !== '[object Object]') return false;
+
+    keys = Object.keys(pair);
+
+    if (keys.length !== 1) return false;
+
+    result[index] = [ keys[0], pair[keys[0]] ];
+  }
+
+  return true;
+}
+
+function constructYamlPairs(data) {
+  if (data === null) return [];
+
+  var index, length, pair, keys, result,
+      object = data;
+
+  result = new Array(object.length);
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    pair = object[index];
+
+    keys = Object.keys(pair);
+
+    result[index] = [ keys[0], pair[keys[0]] ];
+  }
+
+  return result;
+}
+
+module.exports = new Type('tag:yaml.org,2002:pairs', {
+  kind: 'sequence',
+  resolve: resolveYamlPairs,
+  construct: constructYamlPairs
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/seq.js b/node_modules/js-yaml/lib/js-yaml/type/seq.js
new file mode 100644
index 000000000..be8f77f28
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/seq.js
@@ -0,0 +1,8 @@
+'use strict';
+
+var Type = require('../type');
+
+module.exports = new Type('tag:yaml.org,2002:seq', {
+  kind: 'sequence',
+  construct: function (data) { return data !== null ? data : []; }
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/set.js b/node_modules/js-yaml/lib/js-yaml/type/set.js
new file mode 100644
index 000000000..f885a329c
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/set.js
@@ -0,0 +1,29 @@
+'use strict';
+
+var Type = require('../type');
+
+var _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+function resolveYamlSet(data) {
+  if (data === null) return true;
+
+  var key, object = data;
+
+  for (key in object) {
+    if (_hasOwnProperty.call(object, key)) {
+      if (object[key] !== null) return false;
+    }
+  }
+
+  return true;
+}
+
+function constructYamlSet(data) {
+  return data !== null ? data : {};
+}
+
+module.exports = new Type('tag:yaml.org,2002:set', {
+  kind: 'mapping',
+  resolve: resolveYamlSet,
+  construct: constructYamlSet
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/str.js b/node_modules/js-yaml/lib/js-yaml/type/str.js
new file mode 100644
index 000000000..27acc106c
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/str.js
@@ -0,0 +1,8 @@
+'use strict';
+
+var Type = require('../type');
+
+module.exports = new Type('tag:yaml.org,2002:str', {
+  kind: 'scalar',
+  construct: function (data) { return data !== null ? data : ''; }
+});
diff --git a/node_modules/js-yaml/lib/js-yaml/type/timestamp.js b/node_modules/js-yaml/lib/js-yaml/type/timestamp.js
new file mode 100644
index 000000000..8fa9c5865
--- /dev/null
+++ b/node_modules/js-yaml/lib/js-yaml/type/timestamp.js
@@ -0,0 +1,88 @@
+'use strict';
+
+var Type = require('../type');
+
+var YAML_DATE_REGEXP = new RegExp(
+  '^([0-9][0-9][0-9][0-9])'          + // [1] year
+  '-([0-9][0-9])'                    + // [2] month
+  '-([0-9][0-9])$');                   // [3] day
+
+var YAML_TIMESTAMP_REGEXP = new RegExp(
+  '^([0-9][0-9][0-9][0-9])'          + // [1] year
+  '-([0-9][0-9]?)'                   + // [2] month
+  '-([0-9][0-9]?)'                   + // [3] day
+  '(?:[Tt]|[ \\t]+)'                 + // ...
+  '([0-9][0-9]?)'                    + // [4] hour
+  ':([0-9][0-9])'                    + // [5] minute
+  ':([0-9][0-9])'                    + // [6] second
+  '(?:\\.([0-9]*))?'                 + // [7] fraction
+  '(?:[ \\t]*(Z|([-+])([0-9][0-9]?)' + // [8] tz [9] tz_sign [10] tz_hour
+  '(?::([0-9][0-9]))?))?$');           // [11] tz_minute
+
+function resolveYamlTimestamp(data) {
+  if (data === null) return false;
+  if (YAML_DATE_REGEXP.exec(data) !== null) return true;
+  if (YAML_TIMESTAMP_REGEXP.exec(data) !== null) return true;
+  return false;
+}
+
+function constructYamlTimestamp(data) {
+  var match, year, month, day, hour, minute, second, fraction = 0,
+      delta = null, tz_hour, tz_minute, date;
+
+  match = YAML_DATE_REGEXP.exec(data);
+  if (match === null) match = YAML_TIMESTAMP_REGEXP.exec(data);
+
+  if (match === null) throw new Error('Date resolve error');
+
+  // match: [1] year [2] month [3] day
+
+  year = +(match[1]);
+  month = +(match[2]) - 1; // JS month starts with 0
+  day = +(match[3]);
+
+  if (!match[4]) { // no hour
+    return new Date(Date.UTC(year, month, day));
+  }
+
+  // match: [4] hour [5] minute [6] second [7] fraction
+
+  hour = +(match[4]);
+  minute = +(match[5]);
+  second = +(match[6]);
+
+  if (match[7]) {
+    fraction = match[7].slice(0, 3);
+    while (fraction.length < 3) { // milli-seconds
+      fraction += '0';
+    }
+    fraction = +fraction;
+  }
+
+  // match: [8] tz [9] tz_sign [10] tz_hour [11] tz_minute
+
+  if (match[9]) {
+    tz_hour = +(match[10]);
+    tz_minute = +(match[11] || 0);
+    delta = (tz_hour * 60 + tz_minute) * 60000; // delta in mili-seconds
+    if (match[9] === '-') delta = -delta;
+  }
+
+  date = new Date(Date.UTC(year, month, day, hour, minute, second, fraction));
+
+  if (delta) date.setTime(date.getTime() - delta);
+
+  return date;
+}
+
+function representYamlTimestamp(object /*, style*/) {
+  return object.toISOString();
+}
+
+module.exports = new Type('tag:yaml.org,2002:timestamp', {
+  kind: 'scalar',
+  resolve: resolveYamlTimestamp,
+  construct: constructYamlTimestamp,
+  instanceOf: Date,
+  represent: representYamlTimestamp
+});
diff --git a/node_modules/js-yaml/node_modules/.bin/esparse b/node_modules/js-yaml/node_modules/.bin/esparse
new file mode 120000
index 000000000..7423b18b2
--- /dev/null
+++ b/node_modules/js-yaml/node_modules/.bin/esparse
@@ -0,0 +1 @@
+../esprima/bin/esparse.js
\ No newline at end of file
diff --git a/node_modules/js-yaml/node_modules/.bin/esvalidate b/node_modules/js-yaml/node_modules/.bin/esvalidate
new file mode 120000
index 000000000..16069effb
--- /dev/null
+++ b/node_modules/js-yaml/node_modules/.bin/esvalidate
@@ -0,0 +1 @@
+../esprima/bin/esvalidate.js
\ No newline at end of file
diff --git a/node_modules/js-yaml/node_modules/esprima/ChangeLog b/node_modules/js-yaml/node_modules/esprima/ChangeLog
new file mode 100644
index 000000000..23bcdc788
--- /dev/null
+++ b/node_modules/js-yaml/node_modules/esprima/ChangeLog
@@ -0,0 +1,209 @@
+2016-12-22: Version 3.1.3
+
+      * Support binding patterns as rest element (issue 1681)
+      * Account for different possible arguments of a yield expression (issue 1469)
+
+2016-11-24: Version 3.1.2
+
+      * Ensure that import specifier is more restrictive (issue 1615)
+      * Fix duplicated JSX tokens (issue 1613)
+      * Scan template literal in a JSX expression container (issue 1622)
+      * Improve XHTML entity scanning in JSX (issue 1629)
+
+2016-10-31: Version 3.1.1
+
+      * Fix assignment expression problem in an export declaration (issue 1596)
+      * Fix incorrect tokenization of hex digits (issue 1605)
+
+2016-10-09: Version 3.1.0
+
+      * Do not implicitly collect comments when comment attachment is specified (issue 1553)
+      * Fix incorrect handling of duplicated proto shorthand fields (issue 1485)
+      * Prohibit initialization in some variants of for statements (issue 1309, 1561)
+      * Fix incorrect parsing of export specifier (issue 1578)
+      * Fix ESTree compatibility for assignment pattern (issue 1575)
+
+2016-09-03: Version 3.0.0
+
+      * Support ES2016 exponentiation expression (issue 1490)
+      * Support JSX syntax (issue 1467)
+      * Use the latest Unicode 8.0 (issue 1475)
+      * Add the support for syntax node delegate (issue 1435)
+      * Fix ESTree compatibility on meta property (issue 1338)
+      * Fix ESTree compatibility on default parameter value (issue 1081)
+      * Fix ESTree compatibility on try handler (issue 1030)
+
+2016-08-23: Version 2.7.3
+
+      * Fix tokenizer confusion with a comment (issue 1493, 1516)
+
+2016-02-02: Version 2.7.2
+
+      * Fix out-of-bound error location in an invalid string literal (issue 1457)
+      * Fix shorthand object destructuring defaults in variable declarations (issue 1459)
+
+2015-12-10: Version 2.7.1
+
+      * Do not allow trailing comma in a variable declaration (issue 1360)
+      * Fix assignment to `let` in non-strict mode (issue 1376)
+      * Fix missing delegate property in YieldExpression (issue 1407)
+
+2015-10-22: Version 2.7.0
+
+      * Fix the handling of semicolon in a break statement (issue 1044)
+      * Run the test suite with major web browsers (issue 1259, 1317)
+      * Allow `let` as an identifier in non-strict mode (issue 1289)
+      * Attach orphaned comments as `innerComments` (issue 1328)
+      * Add the support for token delegator (issue 1332)
+
+2015-09-01: Version 2.6.0
+
+      * Properly allow or prohibit `let` in a binding identifier/pattern (issue 1048, 1098)
+      * Add sourceType field for Program node (issue 1159)
+      * Ensure that strict mode reserved word binding throw an error (issue 1171)
+      * Run the test suite with Node.js and IE 11 on Windows (issue 1294)
+      * Allow binding pattern with no initializer in a for statement (issue 1301)
+
+2015-07-31: Version 2.5.0
+
+      * Run the test suite in a browser environment (issue 1004)
+      * Ensure a comma between imported default binding and named imports (issue 1046)
+      * Distinguish `yield` as a keyword vs an identifier (issue 1186)
+      * Support ES6 meta property `new.target` (issue 1203)
+      * Fix the syntax node for yield with expression (issue 1223)
+      * Fix the check of duplicated proto in property names (issue 1225)
+      * Fix ES6 Unicode escape in identifier name (issue 1229)
+      * Support ES6 IdentifierStart and IdentifierPart (issue 1232)
+      * Treat await as a reserved word when parsing as a module (issue 1234)
+      * Recognize identifier characters from Unicode SMP (issue 1244)
+      * Ensure that export and import can be followed by a comma (issue 1250)
+      * Fix yield operator precedence (issue 1262)
+
+2015-07-01: Version 2.4.1
+
+      * Fix some cases of comment attachment (issue 1071, 1175)
+      * Fix the handling of destructuring in function arguments (issue 1193)
+      * Fix invalid ranges in assignment expression (issue 1201)
+
+2015-06-26: Version 2.4.0
+
+      * Support ES6 for-of iteration (issue 1047)
+      * Support ES6 spread arguments (issue 1169)
+      * Minimize npm payload (issue 1191)
+
+2015-06-16: Version 2.3.0
+
+      * Support ES6 generator (issue 1033)
+      * Improve parsing of regular expressions with `u` flag (issue 1179)
+
+2015-04-17: Version 2.2.0
+
+      * Support ES6 import and export declarations (issue 1000)
+      * Fix line terminator before arrow not recognized as error (issue 1009)
+      * Support ES6 destructuring (issue 1045)
+      * Support ES6 template literal (issue 1074)
+      * Fix the handling of invalid/incomplete string escape sequences (issue 1106)
+      * Fix ES3 static member access restriction (issue 1120)
+      * Support for `super` in ES6 class (issue 1147)
+
+2015-03-09: Version 2.1.0
+
+      * Support ES6 class (issue 1001)
+      * Support ES6 rest parameter (issue 1011)
+      * Expand the location of property getter, setter, and methods (issue 1029)
+      * Enable TryStatement transition to a single handler (issue 1031)
+      * Support ES6 computed property name (issue 1037)
+      * Tolerate unclosed block comment (issue 1041)
+      * Support ES6 lexical declaration (issue 1065)
+
+2015-02-06: Version 2.0.0
+
+      * Support ES6 arrow function (issue 517)
+      * Support ES6 Unicode code point escape (issue 521)
+      * Improve the speed and accuracy of comment attachment (issue 522)
+      * Support ES6 default parameter (issue 519)
+      * Support ES6 regular expression flags (issue 557)
+      * Fix scanning of implicit octal literals (issue 565)
+      * Fix the handling of automatic semicolon insertion (issue 574)
+      * Support ES6 method definition (issue 620)
+      * Support ES6 octal integer literal (issue 621)
+      * Support ES6 binary integer literal (issue 622)
+      * Support ES6 object literal property value shorthand (issue 624)
+
+2015-03-03: Version 1.2.5
+
+      * Fix scanning of implicit octal literals (issue 565)
+
+2015-02-05: Version 1.2.4
+
+      * Fix parsing of LeftHandSideExpression in ForInStatement (issue 560)
+      * Fix the handling of automatic semicolon insertion (issue 574)
+
+2015-01-18: Version 1.2.3
+
+      * Fix division by this (issue 616)
+
+2014-05-18: Version 1.2.2
+
+      * Fix duplicated tokens when collecting comments (issue 537)
+
+2014-05-04: Version 1.2.1
+
+      * Ensure that Program node may still have leading comments (issue 536)
+
+2014-04-29: Version 1.2.0
+
+      * Fix semicolon handling for expression statement (issue 462, 533)
+      * Disallow escaped characters in regular expression flags (issue 503)
+      * Performance improvement for location tracking (issue 520)
+      * Improve the speed of comment attachment (issue 522)
+
+2014-03-26: Version 1.1.1
+
+      * Fix token handling of forward slash after an array literal (issue 512)
+
+2014-03-23: Version 1.1.0
+
+      * Optionally attach comments to the owning syntax nodes (issue 197)
+      * Simplify binary parsing with stack-based shift reduce (issue 352)
+      * Always include the raw source of literals (issue 376)
+      * Add optional input source information (issue 386)
+      * Tokenizer API for pure lexical scanning (issue 398)
+      * Improve the web site and its online demos (issue 337, 400, 404)
+      * Performance improvement for location tracking (issue 417, 424)
+      * Support HTML comment syntax (issue 451)
+      * Drop support for legacy browsers (issue 474)
+
+2013-08-27: Version 1.0.4
+
+      * Minimize the payload for packages (issue 362)
+      * Fix missing cases on an empty switch statement (issue 436)
+      * Support escaped ] in regexp literal character classes (issue 442)
+      * Tolerate invalid left-hand side expression (issue 130)
+
+2013-05-17: Version 1.0.3
+
+      * Variable declaration needs at least one declarator (issue 391)
+      * Fix benchmark's variance unit conversion (issue 397)
+      * IE < 9: \v should be treated as vertical tab (issue 405)
+      * Unary expressions should always have prefix: true (issue 418)
+      * Catch clause should only accept an identifier (issue 423)
+      * Tolerate setters without parameter (issue 426)
+
+2012-11-02: Version 1.0.2
+
+    Improvement:
+
+      * Fix esvalidate JUnit output upon a syntax error (issue 374)
+
+2012-10-28: Version 1.0.1
+
+    Improvements:
+
+      * esvalidate understands shebang in a Unix shell script (issue 361)
+      * esvalidate treats fatal parsing failure as an error (issue 361)
+      * Reduce Node.js package via .npmignore (issue 362)
+
+2012-10-22: Version 1.0.0
+
+    Initial release.
diff --git a/node_modules/js-yaml/node_modules/esprima/LICENSE.BSD b/node_modules/js-yaml/node_modules/esprima/LICENSE.BSD
new file mode 100644
index 000000000..7a55160f5
--- /dev/null
+++ b/node_modules/js-yaml/node_modules/esprima/LICENSE.BSD
@@ -0,0 +1,21 @@
+Copyright JS Foundation and other contributors, https://js.foundation/
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+  * Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+  * Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/node_modules/js-yaml/node_modules/esprima/README.md b/node_modules/js-yaml/node_modules/esprima/README.md
new file mode 100644
index 000000000..e59d08333
--- /dev/null
+++ b/node_modules/js-yaml/node_modules/esprima/README.md
@@ -0,0 +1,44 @@
+[![NPM version](https://img.shields.io/npm/v/esprima.svg)](https://www.npmjs.com/package/esprima)
+[![npm download](https://img.shields.io/npm/dm/esprima.svg)](https://www.npmjs.com/package/esprima)
+[![Build Status](https://img.shields.io/travis/jquery/esprima/master.svg)](https://travis-ci.org/jquery/esprima)
+[![Coverage Status](https://img.shields.io/codecov/c/github/jquery/esprima/master.svg)](https://codecov.io/github/jquery/esprima)
+
+**Esprima** ([esprima.org](http://esprima.org), BSD license) is a high performance,
+standard-compliant [ECMAScript](http://www.ecma-international.org/publications/standards/Ecma-262.htm)
+parser written in ECMAScript (also popularly known as
+[JavaScript](https://en.wikipedia.org/wiki/JavaScript)).
+Esprima is created and maintained by [Ariya Hidayat](https://twitter.com/ariyahidayat),
+with the help of [many contributors](https://github.com/jquery/esprima/contributors).
+
+### Features
+
+- Full support for ECMAScript 2016 ([ECMA-262 7th Edition](http://www.ecma-international.org/publications/standards/Ecma-262.htm))
+- Sensible [syntax tree format](https://github.com/estree/estree/blob/master/es5.md) as standardized by [ESTree project](https://github.com/estree/estree)
+- Experimental support for [JSX](https://facebook.github.io/jsx/), a syntax extension for [React](https://facebook.github.io/react/)
+- Optional tracking of syntax node location (index-based and line-column)
+- [Heavily tested](http://esprima.org/test/ci.html) (~1300 [unit tests](https://github.com/jquery/esprima/tree/master/test/fixtures) with [full code coverage](https://codecov.io/github/jquery/esprima))
+
+### API
+
+Esprima can be used to perform [lexical analysis](https://en.wikipedia.org/wiki/Lexical_analysis) (tokenization) or [syntactic analysis](https://en.wikipedia.org/wiki/Parsing) (parsing) of a JavaScript program.
+
+A simple example on Node.js REPL:
+
+```javascript
+> var esprima = require('esprima');
+> var program = 'const answer = 42';
+
+> esprima.tokenize(program);
+[ { type: 'Keyword', value: 'const' },
+  { type: 'Identifier', value: 'answer' },
+  { type: 'Punctuator', value: '=' },
+  { type: 'Numeric', value: '42' } ]
+  
+> esprima.parse(program);
+{ type: 'Program',
+  body:
+   [ { type: 'VariableDeclaration',
+       declarations: [Object],
+       kind: 'const' } ],
+  sourceType: 'script' }
+```
diff --git a/node_modules/js-yaml/node_modules/esprima/bin/esparse.js b/node_modules/js-yaml/node_modules/esprima/bin/esparse.js
new file mode 100755
index 000000000..45d05fbb7
--- /dev/null
+++ b/node_modules/js-yaml/node_modules/esprima/bin/esparse.js
@@ -0,0 +1,139 @@
+#!/usr/bin/env node
+/*
+  Copyright JS Foundation and other contributors, https://js.foundation/
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*jslint sloppy:true node:true rhino:true */
+
+var fs, esprima, fname, forceFile, content, options, syntax;
+
+if (typeof require === 'function') {
+    fs = require('fs');
+    try {
+        esprima = require('esprima');
+    } catch (e) {
+        esprima = require('../');
+    }
+} else if (typeof load === 'function') {
+    try {
+        load('esprima.js');
+    } catch (e) {
+        load('../esprima.js');
+    }
+}
+
+// Shims to Node.js objects when running under Rhino.
+if (typeof console === 'undefined' && typeof process === 'undefined') {
+    console = { log: print };
+    fs = { readFileSync: readFile };
+    process = { argv: arguments, exit: quit };
+    process.argv.unshift('esparse.js');
+    process.argv.unshift('rhino');
+}
+
+function showUsage() {
+    console.log('Usage:');
+    console.log('   esparse [options] [file.js]');
+    console.log();
+    console.log('Available options:');
+    console.log();
+    console.log('  --comment      Gather all line and block comments in an array');
+    console.log('  --loc          Include line-column location info for each syntax node');
+    console.log('  --range        Include index-based range for each syntax node');
+    console.log('  --raw          Display the raw value of literals');
+    console.log('  --tokens       List all tokens in an array');
+    console.log('  --tolerant     Tolerate errors on a best-effort basis (experimental)');
+    console.log('  -v, --version  Shows program version');
+    console.log();
+    process.exit(1);
+}
+
+options = {};
+
+process.argv.splice(2).forEach(function (entry) {
+
+    if (forceFile || entry === '-' || entry.slice(0, 1) !== '-') {
+        if (typeof fname === 'string') {
+            console.log('Error: more than one input file.');
+            process.exit(1);
+        } else {
+            fname = entry;
+        }
+    } else if (entry === '-h' || entry === '--help') {
+        showUsage();
+    } else if (entry === '-v' || entry === '--version') {
+        console.log('ECMAScript Parser (using Esprima version', esprima.version, ')');
+        console.log();
+        process.exit(0);
+    } else if (entry === '--comment') {
+        options.comment = true;
+    } else if (entry === '--loc') {
+        options.loc = true;
+    } else if (entry === '--range') {
+        options.range = true;
+    } else if (entry === '--raw') {
+        options.raw = true;
+    } else if (entry === '--tokens') {
+        options.tokens = true;
+    } else if (entry === '--tolerant') {
+        options.tolerant = true;
+    } else if (entry === '--') {
+        forceFile = true;
+    } else {
+        console.log('Error: unknown option ' + entry + '.');
+        process.exit(1);
+    }
+});
+
+// Special handling for regular expression literal since we need to
+// convert it to a string literal, otherwise it will be decoded
+// as object "{}" and the regular expression would be lost.
+function adjustRegexLiteral(key, value) {
+    if (key === 'value' && value instanceof RegExp) {
+        value = value.toString();
+    }
+    return value;
+}
+
+function run(content) {
+    syntax = esprima.parse(content, options);
+    console.log(JSON.stringify(syntax, adjustRegexLiteral, 4));
+}
+
+try {
+    if (fname && (fname !== '-' || forceFile)) {
+        run(fs.readFileSync(fname, 'utf-8'));
+    } else {
+        var content = '';
+        process.stdin.resume();
+        process.stdin.on('data', function(chunk) {
+            content += chunk;
+        });
+        process.stdin.on('end', function() {
+            run(content);
+        });
+    }
+} catch (e) {
+    console.log('Error: ' + e.message);
+    process.exit(1);
+}
diff --git a/node_modules/js-yaml/node_modules/esprima/bin/esvalidate.js b/node_modules/js-yaml/node_modules/esprima/bin/esvalidate.js
new file mode 100755
index 000000000..4faf760e2
--- /dev/null
+++ b/node_modules/js-yaml/node_modules/esprima/bin/esvalidate.js
@@ -0,0 +1,236 @@
+#!/usr/bin/env node
+/*
+  Copyright JS Foundation and other contributors, https://js.foundation/
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*jslint sloppy:true plusplus:true node:true rhino:true */
+/*global phantom:true */
+
+var fs, system, esprima, options, fnames, forceFile, count;
+
+if (typeof esprima === 'undefined') {
+    // PhantomJS can only require() relative files
+    if (typeof phantom === 'object') {
+        fs = require('fs');
+        system = require('system');
+        esprima = require('./esprima');
+    } else if (typeof require === 'function') {
+        fs = require('fs');
+        try {
+            esprima = require('esprima');
+        } catch (e) {
+            esprima = require('../');
+        }
+    } else if (typeof load === 'function') {
+        try {
+            load('esprima.js');
+        } catch (e) {
+            load('../esprima.js');
+        }
+    }
+}
+
+// Shims to Node.js objects when running under PhantomJS 1.7+.
+if (typeof phantom === 'object') {
+    fs.readFileSync = fs.read;
+    process = {
+        argv: [].slice.call(system.args),
+        exit: phantom.exit,
+        on: function (evt, callback) {
+            callback();
+        }
+    };
+    process.argv.unshift('phantomjs');
+}
+
+// Shims to Node.js objects when running under Rhino.
+if (typeof console === 'undefined' && typeof process === 'undefined') {
+    console = { log: print };
+    fs = { readFileSync: readFile };
+    process = {
+        argv: arguments,
+        exit: quit,
+        on: function (evt, callback) {
+            callback();
+        }
+    };
+    process.argv.unshift('esvalidate.js');
+    process.argv.unshift('rhino');
+}
+
+function showUsage() {
+    console.log('Usage:');
+    console.log('   esvalidate [options] [file.js...]');
+    console.log();
+    console.log('Available options:');
+    console.log();
+    console.log('  --format=type  Set the report format, plain (default) or junit');
+    console.log('  -v, --version  Print program version');
+    console.log();
+    process.exit(1);
+}
+
+options = {
+    format: 'plain'
+};
+
+fnames = [];
+
+process.argv.splice(2).forEach(function (entry) {
+
+    if (forceFile || entry === '-' || entry.slice(0, 1) !== '-') {
+        fnames.push(entry);
+    } else if (entry === '-h' || entry === '--help') {
+        showUsage();
+    } else if (entry === '-v' || entry === '--version') {
+        console.log('ECMAScript Validator (using Esprima version', esprima.version, ')');
+        console.log();
+        process.exit(0);
+    } else if (entry.slice(0, 9) === '--format=') {
+        options.format = entry.slice(9);
+        if (options.format !== 'plain' && options.format !== 'junit') {
+            console.log('Error: unknown report format ' + options.format + '.');
+            process.exit(1);
+        }
+    } else if (entry === '--') {
+        forceFile = true;
+    } else {
+        console.log('Error: unknown option ' + entry + '.');
+        process.exit(1);
+    }
+});
+
+if (fnames.length === 0) {
+    fnames.push('');
+}
+
+if (options.format === 'junit') {
+    console.log('<?xml version="1.0" encoding="UTF-8"?>');
+    console.log('<testsuites>');
+}
+
+count = 0;
+
+function run(fname, content) {
+    var timestamp, syntax, name;
+    try {
+        if (typeof content !== 'string') {
+            throw content;
+        }
+
+        if (content[0] === '#' && content[1] === '!') {
+            content = '//' + content.substr(2, content.length);
+        }
+
+        timestamp = Date.now();
+        syntax = esprima.parse(content, { tolerant: true });
+
+        if (options.format === 'junit') {
+
+            name = fname;
+            if (name.lastIndexOf('/') >= 0) {
+                name = name.slice(name.lastIndexOf('/') + 1);
+            }
+
+            console.log('<testsuite name="' + fname + '" errors="0" ' +
+                ' failures="' + syntax.errors.length + '" ' +
+                ' tests="' + syntax.errors.length + '" ' +
+                ' time="' + Math.round((Date.now() - timestamp) / 1000) +
+                '">');
+
+            syntax.errors.forEach(function (error) {
+                var msg = error.message;
+                msg = msg.replace(/^Line\ [0-9]*\:\ /, '');
+                console.log('  <testcase name="Line ' + error.lineNumber + ': ' + msg + '" ' +
+                    ' time="0">');
+                console.log('    <error type="SyntaxError" message="' + error.message + '">' +
+                    error.message + '(' + name + ':' + error.lineNumber + ')' +
+                    '</error>');
+                console.log('  </testcase>');
+            });
+
+            console.log('</testsuite>');
+
+        } else if (options.format === 'plain') {
+
+            syntax.errors.forEach(function (error) {
+                var msg = error.message;
+                msg = msg.replace(/^Line\ [0-9]*\:\ /, '');
+                msg = fname + ':' + error.lineNumber + ': ' + msg;
+                console.log(msg);
+                ++count;
+            });
+
+        }
+    } catch (e) {
+        ++count;
+        if (options.format === 'junit') {
+            console.log('<testsuite name="' + fname + '" errors="1" failures="0" tests="1" ' +
+                ' time="' + Math.round((Date.now() - timestamp) / 1000) + '">');
+            console.log(' <testcase name="' + e.message + '" ' + ' time="0">');
+            console.log(' <error type="ParseError" message="' + e.message + '">' +
+                e.message + '(' + fname + ((e.lineNumber) ? ':' + e.lineNumber : '') +
+                ')</error>');
+            console.log(' </testcase>');
+            console.log('</testsuite>');
+        } else {
+            console.log('Error: ' + e.message);
+        }
+    }
+}
+
+fnames.forEach(function (fname) {
+    var content = '';
+    try {
+        if (fname && (fname !== '-' || forceFile)) {
+            content = fs.readFileSync(fname, 'utf-8');
+        } else {
+            fname = '';
+            process.stdin.resume();
+            process.stdin.on('data', function(chunk) {
+                content += chunk;
+            });
+            process.stdin.on('end', function() {
+                run(fname, content);
+            });
+            return;
+        }
+    } catch (e) {
+        content = e;
+    }
+    run(fname, content);
+});
+
+process.on('exit', function () {
+    if (options.format === 'junit') {
+        console.log('</testsuites>');
+    }
+
+    if (count > 0) {
+        process.exit(1);
+    }
+
+    if (count === 0 && typeof phantom === 'object') {
+        process.exit(0);
+    }
+});
diff --git a/node_modules/js-yaml/node_modules/esprima/dist/esprima.js b/node_modules/js-yaml/node_modules/esprima/dist/esprima.js
new file mode 100644
index 000000000..34675c03d
--- /dev/null
+++ b/node_modules/js-yaml/node_modules/esprima/dist/esprima.js
@@ -0,0 +1,6401 @@
+(function webpackUniversalModuleDefinition(root, factory) {
+/* istanbul ignore next */
+	if(typeof exports === 'object' && typeof module === 'object')
+		module.exports = factory();
+	else if(typeof define === 'function' && define.amd)
+		define([], factory);
+/* istanbul ignore next */
+	else if(typeof exports === 'object')
+		exports["esprima"] = factory();
+	else
+		root["esprima"] = factory();
+})(this, function() {
+return /******/ (function(modules) { // webpackBootstrap
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+
+/******/ 		// Check if module is in cache
+/* istanbul ignore if */
+/******/ 		if(installedModules[moduleId])
+/******/ 			return installedModules[moduleId].exports;
+
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			exports: {},
+/******/ 			id: moduleId,
+/******/ 			loaded: false
+/******/ 		};
+
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+
+/******/ 		// Flag the module as loaded
+/******/ 		module.loaded = true;
+
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+
+
+/******/ 	// expose the modules object (__webpack_modules__)
+/******/ 	__webpack_require__.m = modules;
+
+/******/ 	// expose the module cache
+/******/ 	__webpack_require__.c = installedModules;
+
+/******/ 	// __webpack_public_path__
+/******/ 	__webpack_require__.p = "";
+
+/******/ 	// Load entry module and return exports
+/******/ 	return __webpack_require__(0);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ function(module, exports, __webpack_require__) {
+
+	/*
+	  Copyright JS Foundation and other contributors, https://js.foundation/
+
+	  Redistribution and use in source and binary forms, with or without
+	  modification, are permitted provided that the following conditions are met:
+
+	    * Redistributions of source code must retain the above copyright
+	      notice, this list of conditions and the following disclaimer.
+	    * Redistributions in binary form must reproduce the above copyright
+	      notice, this list of conditions and the following disclaimer in the
+	      documentation and/or other materials provided with the distribution.
+
+	  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+	  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+	  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+	  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+	  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+	  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+	  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+	  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+	  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+	  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+	*/
+	"use strict";
+	var comment_handler_1 = __webpack_require__(1);
+	var parser_1 = __webpack_require__(3);
+	var jsx_parser_1 = __webpack_require__(11);
+	var tokenizer_1 = __webpack_require__(15);
+	function parse(code, options, delegate) {
+	    var commentHandler = null;
+	    var proxyDelegate = function (node, metadata) {
+	        if (delegate) {
+	            delegate(node, metadata);
+	        }
+	        if (commentHandler) {
+	            commentHandler.visit(node, metadata);
+	        }
+	    };
+	    var parserDelegate = (typeof delegate === 'function') ? proxyDelegate : null;
+	    var collectComment = false;
+	    if (options) {
+	        collectComment = (typeof options.comment === 'boolean' && options.comment);
+	        var attachComment = (typeof options.attachComment === 'boolean' && options.attachComment);
+	        if (collectComment || attachComment) {
+	            commentHandler = new comment_handler_1.CommentHandler();
+	            commentHandler.attach = attachComment;
+	            options.comment = true;
+	            parserDelegate = proxyDelegate;
+	        }
+	    }
+	    var parser;
+	    if (options && typeof options.jsx === 'boolean' && options.jsx) {
+	        parser = new jsx_parser_1.JSXParser(code, options, parserDelegate);
+	    }
+	    else {
+	        parser = new parser_1.Parser(code, options, parserDelegate);
+	    }
+	    var ast = (parser.parseProgram());
+	    if (collectComment) {
+	        ast.comments = commentHandler.comments;
+	    }
+	    if (parser.config.tokens) {
+	        ast.tokens = parser.tokens;
+	    }
+	    if (parser.config.tolerant) {
+	        ast.errors = parser.errorHandler.errors;
+	    }
+	    return ast;
+	}
+	exports.parse = parse;
+	function tokenize(code, options, delegate) {
+	    var tokenizer = new tokenizer_1.Tokenizer(code, options);
+	    var tokens;
+	    tokens = [];
+	    try {
+	        while (true) {
+	            var token = tokenizer.getNextToken();
+	            if (!token) {
+	                break;
+	            }
+	            if (delegate) {
+	                token = delegate(token);
+	            }
+	            tokens.push(token);
+	        }
+	    }
+	    catch (e) {
+	        tokenizer.errorHandler.tolerate(e);
+	    }
+	    if (tokenizer.errorHandler.tolerant) {
+	        tokens.errors = tokenizer.errors();
+	    }
+	    return tokens;
+	}
+	exports.tokenize = tokenize;
+	var syntax_1 = __webpack_require__(2);
+	exports.Syntax = syntax_1.Syntax;
+	// Sync with *.json manifests.
+	exports.version = '3.1.3';
+
+
+/***/ },
+/* 1 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+	var syntax_1 = __webpack_require__(2);
+	var CommentHandler = (function () {
+	    function CommentHandler() {
+	        this.attach = false;
+	        this.comments = [];
+	        this.stack = [];
+	        this.leading = [];
+	        this.trailing = [];
+	    }
+	    CommentHandler.prototype.insertInnerComments = function (node, metadata) {
+	        //  innnerComments for properties empty block
+	        //  `function a() {/** comments **\/}`
+	        if (node.type === syntax_1.Syntax.BlockStatement && node.body.length === 0) {
+	            var innerComments = [];
+	            for (var i = this.leading.length - 1; i >= 0; --i) {
+	                var entry = this.leading[i];
+	                if (metadata.end.offset >= entry.start) {
+	                    innerComments.unshift(entry.comment);
+	                    this.leading.splice(i, 1);
+	                    this.trailing.splice(i, 1);
+	                }
+	            }
+	            if (innerComments.length) {
+	                node.innerComments = innerComments;
+	            }
+	        }
+	    };
+	    CommentHandler.prototype.findTrailingComments = function (node, metadata) {
+	        var trailingComments = [];
+	        if (this.trailing.length > 0) {
+	            for (var i = this.trailing.length - 1; i >= 0; --i) {
+	                var entry_1 = this.trailing[i];
+	                if (entry_1.start >= metadata.end.offset) {
+	                    trailingComments.unshift(entry_1.comment);
+	                }
+	            }
+	            this.trailing.length = 0;
+	            return trailingComments;
+	        }
+	        var entry = this.stack[this.stack.length - 1];
+	        if (entry && entry.node.trailingComments) {
+	            var firstComment = entry.node.trailingComments[0];
+	            if (firstComment && firstComment.range[0] >= metadata.end.offset) {
+	                trailingComments = entry.node.trailingComments;
+	                delete entry.node.trailingComments;
+	            }
+	        }
+	        return trailingComments;
+	    };
+	    CommentHandler.prototype.findLeadingComments = function (node, metadata) {
+	        var leadingComments = [];
+	        var target;
+	        while (this.stack.length > 0) {
+	            var entry = this.stack[this.stack.length - 1];
+	            if (entry && entry.start >= metadata.start.offset) {
+	                target = this.stack.pop().node;
+	            }
+	            else {
+	                break;
+	            }
+	        }
+	        if (target) {
+	            var count = target.leadingComments ? target.leadingComments.length : 0;
+	            for (var i = count - 1; i >= 0; --i) {
+	                var comment = target.leadingComments[i];
+	                if (comment.range[1] <= metadata.start.offset) {
+	                    leadingComments.unshift(comment);
+	                    target.leadingComments.splice(i, 1);
+	                }
+	            }
+	            if (target.leadingComments && target.leadingComments.length === 0) {
+	                delete target.leadingComments;
+	            }
+	            return leadingComments;
+	        }
+	        for (var i = this.leading.length - 1; i >= 0; --i) {
+	            var entry = this.leading[i];
+	            if (entry.start <= metadata.start.offset) {
+	                leadingComments.unshift(entry.comment);
+	                this.leading.splice(i, 1);
+	            }
+	        }
+	        return leadingComments;
+	    };
+	    CommentHandler.prototype.visitNode = function (node, metadata) {
+	        if (node.type === syntax_1.Syntax.Program && node.body.length > 0) {
+	            return;
+	        }
+	        this.insertInnerComments(node, metadata);
+	        var trailingComments = this.findTrailingComments(node, metadata);
+	        var leadingComments = this.findLeadingComments(node, metadata);
+	        if (leadingComments.length > 0) {
+	            node.leadingComments = leadingComments;
+	        }
+	        if (trailingComments.length > 0) {
+	            node.trailingComments = trailingComments;
+	        }
+	        this.stack.push({
+	            node: node,
+	            start: metadata.start.offset
+	        });
+	    };
+	    CommentHandler.prototype.visitComment = function (node, metadata) {
+	        var type = (node.type[0] === 'L') ? 'Line' : 'Block';
+	        var comment = {
+	            type: type,
+	            value: node.value
+	        };
+	        if (node.range) {
+	            comment.range = node.range;
+	        }
+	        if (node.loc) {
+	            comment.loc = node.loc;
+	        }
+	        this.comments.push(comment);
+	        if (this.attach) {
+	            var entry = {
+	                comment: {
+	                    type: type,
+	                    value: node.value,
+	                    range: [metadata.start.offset, metadata.end.offset]
+	                },
+	                start: metadata.start.offset
+	            };
+	            if (node.loc) {
+	                entry.comment.loc = node.loc;
+	            }
+	            node.type = type;
+	            this.leading.push(entry);
+	            this.trailing.push(entry);
+	        }
+	    };
+	    CommentHandler.prototype.visit = function (node, metadata) {
+	        if (node.type === 'LineComment') {
+	            this.visitComment(node, metadata);
+	        }
+	        else if (node.type === 'BlockComment') {
+	            this.visitComment(node, metadata);
+	        }
+	        else if (this.attach) {
+	            this.visitNode(node, metadata);
+	        }
+	    };
+	    return CommentHandler;
+	}());
+	exports.CommentHandler = CommentHandler;
+
+
+/***/ },
+/* 2 */
+/***/ function(module, exports) {
+
+	"use strict";
+	exports.Syntax = {
+	    AssignmentExpression: 'AssignmentExpression',
+	    AssignmentPattern: 'AssignmentPattern',
+	    ArrayExpression: 'ArrayExpression',
+	    ArrayPattern: 'ArrayPattern',
+	    ArrowFunctionExpression: 'ArrowFunctionExpression',
+	    BlockStatement: 'BlockStatement',
+	    BinaryExpression: 'BinaryExpression',
+	    BreakStatement: 'BreakStatement',
+	    CallExpression: 'CallExpression',
+	    CatchClause: 'CatchClause',
+	    ClassBody: 'ClassBody',
+	    ClassDeclaration: 'ClassDeclaration',
+	    ClassExpression: 'ClassExpression',
+	    ConditionalExpression: 'ConditionalExpression',
+	    ContinueStatement: 'ContinueStatement',
+	    DoWhileStatement: 'DoWhileStatement',
+	    DebuggerStatement: 'DebuggerStatement',
+	    EmptyStatement: 'EmptyStatement',
+	    ExportAllDeclaration: 'ExportAllDeclaration',
+	    ExportDefaultDeclaration: 'ExportDefaultDeclaration',
+	    ExportNamedDeclaration: 'ExportNamedDeclaration',
+	    ExportSpecifier: 'ExportSpecifier',
+	    ExpressionStatement: 'ExpressionStatement',
+	    ForStatement: 'ForStatement',
+	    ForOfStatement: 'ForOfStatement',
+	    ForInStatement: 'ForInStatement',
+	    FunctionDeclaration: 'FunctionDeclaration',
+	    FunctionExpression: 'FunctionExpression',
+	    Identifier: 'Identifier',
+	    IfStatement: 'IfStatement',
+	    ImportDeclaration: 'ImportDeclaration',
+	    ImportDefaultSpecifier: 'ImportDefaultSpecifier',
+	    ImportNamespaceSpecifier: 'ImportNamespaceSpecifier',
+	    ImportSpecifier: 'ImportSpecifier',
+	    Literal: 'Literal',
+	    LabeledStatement: 'LabeledStatement',
+	    LogicalExpression: 'LogicalExpression',
+	    MemberExpression: 'MemberExpression',
+	    MetaProperty: 'MetaProperty',
+	    MethodDefinition: 'MethodDefinition',
+	    NewExpression: 'NewExpression',
+	    ObjectExpression: 'ObjectExpression',
+	    ObjectPattern: 'ObjectPattern',
+	    Program: 'Program',
+	    Property: 'Property',
+	    RestElement: 'RestElement',
+	    ReturnStatement: 'ReturnStatement',
+	    SequenceExpression: 'SequenceExpression',
+	    SpreadElement: 'SpreadElement',
+	    Super: 'Super',
+	    SwitchCase: 'SwitchCase',
+	    SwitchStatement: 'SwitchStatement',
+	    TaggedTemplateExpression: 'TaggedTemplateExpression',
+	    TemplateElement: 'TemplateElement',
+	    TemplateLiteral: 'TemplateLiteral',
+	    ThisExpression: 'ThisExpression',
+	    ThrowStatement: 'ThrowStatement',
+	    TryStatement: 'TryStatement',
+	    UnaryExpression: 'UnaryExpression',
+	    UpdateExpression: 'UpdateExpression',
+	    VariableDeclaration: 'VariableDeclaration',
+	    VariableDeclarator: 'VariableDeclarator',
+	    WhileStatement: 'WhileStatement',
+	    WithStatement: 'WithStatement',
+	    YieldExpression: 'YieldExpression'
+	};
+
+
+/***/ },
+/* 3 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+	var assert_1 = __webpack_require__(4);
+	var messages_1 = __webpack_require__(5);
+	var error_handler_1 = __webpack_require__(6);
+	var token_1 = __webpack_require__(7);
+	var scanner_1 = __webpack_require__(8);
+	var syntax_1 = __webpack_require__(2);
+	var Node = __webpack_require__(10);
+	var ArrowParameterPlaceHolder = 'ArrowParameterPlaceHolder';
+	var Parser = (function () {
+	    function Parser(code, options, delegate) {
+	        if (options === void 0) { options = {}; }
+	        this.config = {
+	            range: (typeof options.range === 'boolean') && options.range,
+	            loc: (typeof options.loc === 'boolean') && options.loc,
+	            source: null,
+	            tokens: (typeof options.tokens === 'boolean') && options.tokens,
+	            comment: (typeof options.comment === 'boolean') && options.comment,
+	            tolerant: (typeof options.tolerant === 'boolean') && options.tolerant
+	        };
+	        if (this.config.loc && options.source && options.source !== null) {
+	            this.config.source = String(options.source);
+	        }
+	        this.delegate = delegate;
+	        this.errorHandler = new error_handler_1.ErrorHandler();
+	        this.errorHandler.tolerant = this.config.tolerant;
+	        this.scanner = new scanner_1.Scanner(code, this.errorHandler);
+	        this.scanner.trackComment = this.config.comment;
+	        this.operatorPrecedence = {
+	            ')': 0,
+	            ';': 0,
+	            ',': 0,
+	            '=': 0,
+	            ']': 0,
+	            '||': 1,
+	            '&&': 2,
+	            '|': 3,
+	            '^': 4,
+	            '&': 5,
+	            '==': 6,
+	            '!=': 6,
+	            '===': 6,
+	            '!==': 6,
+	            '<': 7,
+	            '>': 7,
+	            '<=': 7,
+	            '>=': 7,
+	            '<<': 8,
+	            '>>': 8,
+	            '>>>': 8,
+	            '+': 9,
+	            '-': 9,
+	            '*': 11,
+	            '/': 11,
+	            '%': 11
+	        };
+	        this.sourceType = (options && options.sourceType === 'module') ? 'module' : 'script';
+	        this.lookahead = null;
+	        this.hasLineTerminator = false;
+	        this.context = {
+	            allowIn: true,
+	            allowYield: true,
+	            firstCoverInitializedNameError: null,
+	            isAssignmentTarget: false,
+	            isBindingElement: false,
+	            inFunctionBody: false,
+	            inIteration: false,
+	            inSwitch: false,
+	            labelSet: {},
+	            strict: (this.sourceType === 'module')
+	        };
+	        this.tokens = [];
+	        this.startMarker = {
+	            index: 0,
+	            lineNumber: this.scanner.lineNumber,
+	            lineStart: 0
+	        };
+	        this.lastMarker = {
+	            index: 0,
+	            lineNumber: this.scanner.lineNumber,
+	            lineStart: 0
+	        };
+	        this.nextToken();
+	        this.lastMarker = {
+	            index: this.scanner.index,
+	            lineNumber: this.scanner.lineNumber,
+	            lineStart: this.scanner.lineStart
+	        };
+	    }
+	    Parser.prototype.throwError = function (messageFormat) {
+	        var values = [];
+	        for (var _i = 1; _i < arguments.length; _i++) {
+	            values[_i - 1] = arguments[_i];
+	        }
+	        var args = Array.prototype.slice.call(arguments, 1);
+	        var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) {
+	            assert_1.assert(idx < args.length, 'Message reference must be in range');
+	            return args[idx];
+	        });
+	        var index = this.lastMarker.index;
+	        var line = this.lastMarker.lineNumber;
+	        var column = this.lastMarker.index - this.lastMarker.lineStart + 1;
+	        throw this.errorHandler.createError(index, line, column, msg);
+	    };
+	    Parser.prototype.tolerateError = function (messageFormat) {
+	        var values = [];
+	        for (var _i = 1; _i < arguments.length; _i++) {
+	            values[_i - 1] = arguments[_i];
+	        }
+	        var args = Array.prototype.slice.call(arguments, 1);
+	        var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) {
+	            assert_1.assert(idx < args.length, 'Message reference must be in range');
+	            return args[idx];
+	        });
+	        var index = this.lastMarker.index;
+	        var line = this.scanner.lineNumber;
+	        var column = this.lastMarker.index - this.lastMarker.lineStart + 1;
+	        this.errorHandler.tolerateError(index, line, column, msg);
+	    };
+	    // Throw an exception because of the token.
+	    Parser.prototype.unexpectedTokenError = function (token, message) {
+	        var msg = message || messages_1.Messages.UnexpectedToken;
+	        var value;
+	        if (token) {
+	            if (!message) {
+	                msg = (token.type === token_1.Token.EOF) ? messages_1.Messages.UnexpectedEOS :
+	                    (token.type === token_1.Token.Identifier) ? messages_1.Messages.UnexpectedIdentifier :
+	                        (token.type === token_1.Token.NumericLiteral) ? messages_1.Messages.UnexpectedNumber :
+	                            (token.type === token_1.Token.StringLiteral) ? messages_1.Messages.UnexpectedString :
+	                                (token.type === token_1.Token.Template) ? messages_1.Messages.UnexpectedTemplate :
+	                                    messages_1.Messages.UnexpectedToken;
+	                if (token.type === token_1.Token.Keyword) {
+	                    if (this.scanner.isFutureReservedWord(token.value)) {
+	                        msg = messages_1.Messages.UnexpectedReserved;
+	                    }
+	                    else if (this.context.strict && this.scanner.isStrictModeReservedWord(token.value)) {
+	                        msg = messages_1.Messages.StrictReservedWord;
+	                    }
+	                }
+	            }
+	            value = (token.type === token_1.Token.Template) ? token.value.raw : token.value;
+	        }
+	        else {
+	            value = 'ILLEGAL';
+	        }
+	        msg = msg.replace('%0', value);
+	        if (token && typeof token.lineNumber === 'number') {
+	            var index = token.start;
+	            var line = token.lineNumber;
+	            var column = token.start - this.lastMarker.lineStart + 1;
+	            return this.errorHandler.createError(index, line, column, msg);
+	        }
+	        else {
+	            var index = this.lastMarker.index;
+	            var line = this.lastMarker.lineNumber;
+	            var column = index - this.lastMarker.lineStart + 1;
+	            return this.errorHandler.createError(index, line, column, msg);
+	        }
+	    };
+	    Parser.prototype.throwUnexpectedToken = function (token, message) {
+	        throw this.unexpectedTokenError(token, message);
+	    };
+	    Parser.prototype.tolerateUnexpectedToken = function (token, message) {
+	        this.errorHandler.tolerate(this.unexpectedTokenError(token, message));
+	    };
+	    Parser.prototype.collectComments = function () {
+	        if (!this.config.comment) {
+	            this.scanner.scanComments();
+	        }
+	        else {
+	            var comments = this.scanner.scanComments();
+	            if (comments.length > 0 && this.delegate) {
+	                for (var i = 0; i < comments.length; ++i) {
+	                    var e = comments[i];
+	                    var node = void 0;
+	                    node = {
+	                        type: e.multiLine ? 'BlockComment' : 'LineComment',
+	                        value: this.scanner.source.slice(e.slice[0], e.slice[1])
+	                    };
+	                    if (this.config.range) {
+	                        node.range = e.range;
+	                    }
+	                    if (this.config.loc) {
+	                        node.loc = e.loc;
+	                    }
+	                    var metadata = {
+	                        start: {
+	                            line: e.loc.start.line,
+	                            column: e.loc.start.column,
+	                            offset: e.range[0]
+	                        },
+	                        end: {
+	                            line: e.loc.end.line,
+	                            column: e.loc.end.column,
+	                            offset: e.range[1]
+	                        }
+	                    };
+	                    this.delegate(node, metadata);
+	                }
+	            }
+	        }
+	    };
+	    // From internal representation to an external structure
+	    Parser.prototype.getTokenRaw = function (token) {
+	        return this.scanner.source.slice(token.start, token.end);
+	    };
+	    Parser.prototype.convertToken = function (token) {
+	        var t;
+	        t = {
+	            type: token_1.TokenName[token.type],
+	            value: this.getTokenRaw(token)
+	        };
+	        if (this.config.range) {
+	            t.range = [token.start, token.end];
+	        }
+	        if (this.config.loc) {
+	            t.loc = {
+	                start: {
+	                    line: this.startMarker.lineNumber,
+	                    column: this.startMarker.index - this.startMarker.lineStart
+	                },
+	                end: {
+	                    line: this.scanner.lineNumber,
+	                    column: this.scanner.index - this.scanner.lineStart
+	                }
+	            };
+	        }
+	        if (token.regex) {
+	            t.regex = token.regex;
+	        }
+	        return t;
+	    };
+	    Parser.prototype.nextToken = function () {
+	        var token = this.lookahead;
+	        this.lastMarker.index = this.scanner.index;
+	        this.lastMarker.lineNumber = this.scanner.lineNumber;
+	        this.lastMarker.lineStart = this.scanner.lineStart;
+	        this.collectComments();
+	        this.startMarker.index = this.scanner.index;
+	        this.startMarker.lineNumber = this.scanner.lineNumber;
+	        this.startMarker.lineStart = this.scanner.lineStart;
+	        var next;
+	        next = this.scanner.lex();
+	        this.hasLineTerminator = (token && next) ? (token.lineNumber !== next.lineNumber) : false;
+	        if (next && this.context.strict && next.type === token_1.Token.Identifier) {
+	            if (this.scanner.isStrictModeReservedWord(next.value)) {
+	                next.type = token_1.Token.Keyword;
+	            }
+	        }
+	        this.lookahead = next;
+	        if (this.config.tokens && next.type !== token_1.Token.EOF) {
+	            this.tokens.push(this.convertToken(next));
+	        }
+	        return token;
+	    };
+	    Parser.prototype.nextRegexToken = function () {
+	        this.collectComments();
+	        var token = this.scanner.scanRegExp();
+	        if (this.config.tokens) {
+	            // Pop the previous token, '/' or '/='
+	            // This is added from the lookahead token.
+	            this.tokens.pop();
+	            this.tokens.push(this.convertToken(token));
+	        }
+	        // Prime the next lookahead.
+	        this.lookahead = token;
+	        this.nextToken();
+	        return token;
+	    };
+	    Parser.prototype.createNode = function () {
+	        return {
+	            index: this.startMarker.index,
+	            line: this.startMarker.lineNumber,
+	            column: this.startMarker.index - this.startMarker.lineStart
+	        };
+	    };
+	    Parser.prototype.startNode = function (token) {
+	        return {
+	            index: token.start,
+	            line: token.lineNumber,
+	            column: token.start - token.lineStart
+	        };
+	    };
+	    Parser.prototype.finalize = function (meta, node) {
+	        if (this.config.range) {
+	            node.range = [meta.index, this.lastMarker.index];
+	        }
+	        if (this.config.loc) {
+	            node.loc = {
+	                start: {
+	                    line: meta.line,
+	                    column: meta.column
+	                },
+	                end: {
+	                    line: this.lastMarker.lineNumber,
+	                    column: this.lastMarker.index - this.lastMarker.lineStart
+	                }
+	            };
+	            if (this.config.source) {
+	                node.loc.source = this.config.source;
+	            }
+	        }
+	        if (this.delegate) {
+	            var metadata = {
+	                start: {
+	                    line: meta.line,
+	                    column: meta.column,
+	                    offset: meta.index
+	                },
+	                end: {
+	                    line: this.lastMarker.lineNumber,
+	                    column: this.lastMarker.index - this.lastMarker.lineStart,
+	                    offset: this.lastMarker.index
+	                }
+	            };
+	            this.delegate(node, metadata);
+	        }
+	        return node;
+	    };
+	    // Expect the next token to match the specified punctuator.
+	    // If not, an exception will be thrown.
+	    Parser.prototype.expect = function (value) {
+	        var token = this.nextToken();
+	        if (token.type !== token_1.Token.Punctuator || token.value !== value) {
+	            this.throwUnexpectedToken(token);
+	        }
+	    };
+	    // Quietly expect a comma when in tolerant mode, otherwise delegates to expect().
+	    Parser.prototype.expectCommaSeparator = function () {
+	        if (this.config.tolerant) {
+	            var token = this.lookahead;
+	            if (token.type === token_1.Token.Punctuator && token.value === ',') {
+	                this.nextToken();
+	            }
+	            else if (token.type === token_1.Token.Punctuator && token.value === ';') {
+	                this.nextToken();
+	                this.tolerateUnexpectedToken(token);
+	            }
+	            else {
+	                this.tolerateUnexpectedToken(token, messages_1.Messages.UnexpectedToken);
+	            }
+	        }
+	        else {
+	            this.expect(',');
+	        }
+	    };
+	    // Expect the next token to match the specified keyword.
+	    // If not, an exception will be thrown.
+	    Parser.prototype.expectKeyword = function (keyword) {
+	        var token = this.nextToken();
+	        if (token.type !== token_1.Token.Keyword || token.value !== keyword) {
+	            this.throwUnexpectedToken(token);
+	        }
+	    };
+	    // Return true if the next token matches the specified punctuator.
+	    Parser.prototype.match = function (value) {
+	        return this.lookahead.type === token_1.Token.Punctuator && this.lookahead.value === value;
+	    };
+	    // Return true if the next token matches the specified keyword
+	    Parser.prototype.matchKeyword = function (keyword) {
+	        return this.lookahead.type === token_1.Token.Keyword && this.lookahead.value === keyword;
+	    };
+	    // Return true if the next token matches the specified contextual keyword
+	    // (where an identifier is sometimes a keyword depending on the context)
+	    Parser.prototype.matchContextualKeyword = function (keyword) {
+	        return this.lookahead.type === token_1.Token.Identifier && this.lookahead.value === keyword;
+	    };
+	    // Return true if the next token is an assignment operator
+	    Parser.prototype.matchAssign = function () {
+	        if (this.lookahead.type !== token_1.Token.Punctuator) {
+	            return false;
+	        }
+	        var op = this.lookahead.value;
+	        return op === '=' ||
+	            op === '*=' ||
+	            op === '**=' ||
+	            op === '/=' ||
+	            op === '%=' ||
+	            op === '+=' ||
+	            op === '-=' ||
+	            op === '<<=' ||
+	            op === '>>=' ||
+	            op === '>>>=' ||
+	            op === '&=' ||
+	            op === '^=' ||
+	            op === '|=';
+	    };
+	    // Cover grammar support.
+	    //
+	    // When an assignment expression position starts with an left parenthesis, the determination of the type
+	    // of the syntax is to be deferred arbitrarily long until the end of the parentheses pair (plus a lookahead)
+	    // or the first comma. This situation also defers the determination of all the expressions nested in the pair.
+	    //
+	    // There are three productions that can be parsed in a parentheses pair that needs to be determined
+	    // after the outermost pair is closed. They are:
+	    //
+	    //   1. AssignmentExpression
+	    //   2. BindingElements
+	    //   3. AssignmentTargets
+	    //
+	    // In order to avoid exponential backtracking, we use two flags to denote if the production can be
+	    // binding element or assignment target.
+	    //
+	    // The three productions have the relationship:
+	    //
+	    //   BindingElements ⊆ AssignmentTargets ⊆ AssignmentExpression
+	    //
+	    // with a single exception that CoverInitializedName when used directly in an Expression, generates
+	    // an early error. Therefore, we need the third state, firstCoverInitializedNameError, to track the
+	    // first usage of CoverInitializedName and report it when we reached the end of the parentheses pair.
+	    //
+	    // isolateCoverGrammar function runs the given parser function with a new cover grammar context, and it does not
+	    // effect the current flags. This means the production the parser parses is only used as an expression. Therefore
+	    // the CoverInitializedName check is conducted.
+	    //
+	    // inheritCoverGrammar function runs the given parse function with a new cover grammar context, and it propagates
+	    // the flags outside of the parser. This means the production the parser parses is used as a part of a potential
+	    // pattern. The CoverInitializedName check is deferred.
+	    Parser.prototype.isolateCoverGrammar = function (parseFunction) {
+	        var previousIsBindingElement = this.context.isBindingElement;
+	        var previousIsAssignmentTarget = this.context.isAssignmentTarget;
+	        var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError;
+	        this.context.isBindingElement = true;
+	        this.context.isAssignmentTarget = true;
+	        this.context.firstCoverInitializedNameError = null;
+	        var result = parseFunction.call(this);
+	        if (this.context.firstCoverInitializedNameError !== null) {
+	            this.throwUnexpectedToken(this.context.firstCoverInitializedNameError);
+	        }
+	        this.context.isBindingElement = previousIsBindingElement;
+	        this.context.isAssignmentTarget = previousIsAssignmentTarget;
+	        this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError;
+	        return result;
+	    };
+	    Parser.prototype.inheritCoverGrammar = function (parseFunction) {
+	        var previousIsBindingElement = this.context.isBindingElement;
+	        var previousIsAssignmentTarget = this.context.isAssignmentTarget;
+	        var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError;
+	        this.context.isBindingElement = true;
+	        this.context.isAssignmentTarget = true;
+	        this.context.firstCoverInitializedNameError = null;
+	        var result = parseFunction.call(this);
+	        this.context.isBindingElement = this.context.isBindingElement && previousIsBindingElement;
+	        this.context.isAssignmentTarget = this.context.isAssignmentTarget && previousIsAssignmentTarget;
+	        this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError || this.context.firstCoverInitializedNameError;
+	        return result;
+	    };
+	    Parser.prototype.consumeSemicolon = function () {
+	        if (this.match(';')) {
+	            this.nextToken();
+	        }
+	        else if (!this.hasLineTerminator) {
+	            if (this.lookahead.type !== token_1.Token.EOF && !this.match('}')) {
+	                this.throwUnexpectedToken(this.lookahead);
+	            }
+	            this.lastMarker.index = this.startMarker.index;
+	            this.lastMarker.lineNumber = this.startMarker.lineNumber;
+	            this.lastMarker.lineStart = this.startMarker.lineStart;
+	        }
+	    };
+	    // ECMA-262 12.2 Primary Expressions
+	    Parser.prototype.parsePrimaryExpression = function () {
+	        var node = this.createNode();
+	        var expr;
+	        var value, token, raw;
+	        switch (this.lookahead.type) {
+	            case token_1.Token.Identifier:
+	                if (this.sourceType === 'module' && this.lookahead.value === 'await') {
+	                    this.tolerateUnexpectedToken(this.lookahead);
+	                }
+	                expr = this.finalize(node, new Node.Identifier(this.nextToken().value));
+	                break;
+	            case token_1.Token.NumericLiteral:
+	            case token_1.Token.StringLiteral:
+	                if (this.context.strict && this.lookahead.octal) {
+	                    this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.StrictOctalLiteral);
+	                }
+	                this.context.isAssignmentTarget = false;
+	                this.context.isBindingElement = false;
+	                token = this.nextToken();
+	                raw = this.getTokenRaw(token);
+	                expr = this.finalize(node, new Node.Literal(token.value, raw));
+	                break;
+	            case token_1.Token.BooleanLiteral:
+	                this.context.isAssignmentTarget = false;
+	                this.context.isBindingElement = false;
+	                token = this.nextToken();
+	                token.value = (token.value === 'true');
+	                raw = this.getTokenRaw(token);
+	                expr = this.finalize(node, new Node.Literal(token.value, raw));
+	                break;
+	            case token_1.Token.NullLiteral:
+	                this.context.isAssignmentTarget = false;
+	                this.context.isBindingElement = false;
+	                token = this.nextToken();
+	                token.value = null;
+	                raw = this.getTokenRaw(token);
+	                expr = this.finalize(node, new Node.Literal(token.value, raw));
+	                break;
+	            case token_1.Token.Template:
+	                expr = this.parseTemplateLiteral();
+	                break;
+	            case token_1.Token.Punctuator:
+	                value = this.lookahead.value;
+	                switch (value) {
+	                    case '(':
+	                        this.context.isBindingElement = false;
+	                        expr = this.inheritCoverGrammar(this.parseGroupExpression);
+	                        break;
+	                    case '[':
+	                        expr = this.inheritCoverGrammar(this.parseArrayInitializer);
+	                        break;
+	                    case '{':
+	                        expr = this.inheritCoverGrammar(this.parseObjectInitializer);
+	                        break;
+	                    case '/':
+	                    case '/=':
+	                        this.context.isAssignmentTarget = false;
+	                        this.context.isBindingElement = false;
+	                        this.scanner.index = this.startMarker.index;
+	                        token = this.nextRegexToken();
+	                        raw = this.getTokenRaw(token);
+	                        expr = this.finalize(node, new Node.RegexLiteral(token.value, raw, token.regex));
+	                        break;
+	                    default:
+	                        this.throwUnexpectedToken(this.nextToken());
+	                }
+	                break;
+	            case token_1.Token.Keyword:
+	                if (!this.context.strict && this.context.allowYield && this.matchKeyword('yield')) {
+	                    expr = this.parseIdentifierName();
+	                }
+	                else if (!this.context.strict && this.matchKeyword('let')) {
+	                    expr = this.finalize(node, new Node.Identifier(this.nextToken().value));
+	                }
+	                else {
+	                    this.context.isAssignmentTarget = false;
+	                    this.context.isBindingElement = false;
+	                    if (this.matchKeyword('function')) {
+	                        expr = this.parseFunctionExpression();
+	                    }
+	                    else if (this.matchKeyword('this')) {
+	                        this.nextToken();
+	                        expr = this.finalize(node, new Node.ThisExpression());
+	                    }
+	                    else if (this.matchKeyword('class')) {
+	                        expr = this.parseClassExpression();
+	                    }
+	                    else {
+	                        this.throwUnexpectedToken(this.nextToken());
+	                    }
+	                }
+	                break;
+	            default:
+	                this.throwUnexpectedToken(this.nextToken());
+	        }
+	        return expr;
+	    };
+	    // ECMA-262 12.2.5 Array Initializer
+	    Parser.prototype.parseSpreadElement = function () {
+	        var node = this.createNode();
+	        this.expect('...');
+	        var arg = this.inheritCoverGrammar(this.parseAssignmentExpression);
+	        return this.finalize(node, new Node.SpreadElement(arg));
+	    };
+	    Parser.prototype.parseArrayInitializer = function () {
+	        var node = this.createNode();
+	        var elements = [];
+	        this.expect('[');
+	        while (!this.match(']')) {
+	            if (this.match(',')) {
+	                this.nextToken();
+	                elements.push(null);
+	            }
+	            else if (this.match('...')) {
+	                var element = this.parseSpreadElement();
+	                if (!this.match(']')) {
+	                    this.context.isAssignmentTarget = false;
+	                    this.context.isBindingElement = false;
+	                    this.expect(',');
+	                }
+	                elements.push(element);
+	            }
+	            else {
+	                elements.push(this.inheritCoverGrammar(this.parseAssignmentExpression));
+	                if (!this.match(']')) {
+	                    this.expect(',');
+	                }
+	            }
+	        }
+	        this.expect(']');
+	        return this.finalize(node, new Node.ArrayExpression(elements));
+	    };
+	    // ECMA-262 12.2.6 Object Initializer
+	    Parser.prototype.parsePropertyMethod = function (params) {
+	        this.context.isAssignmentTarget = false;
+	        this.context.isBindingElement = false;
+	        var previousStrict = this.context.strict;
+	        var body = this.isolateCoverGrammar(this.parseFunctionSourceElements);
+	        if (this.context.strict && params.firstRestricted) {
+	            this.tolerateUnexpectedToken(params.firstRestricted, params.message);
+	        }
+	        if (this.context.strict && params.stricted) {
+	            this.tolerateUnexpectedToken(params.stricted, params.message);
+	        }
+	        this.context.strict = previousStrict;
+	        return body;
+	    };
+	    Parser.prototype.parsePropertyMethodFunction = function () {
+	        var isGenerator = false;
+	        var node = this.createNode();
+	        var previousAllowYield = this.context.allowYield;
+	        this.context.allowYield = false;
+	        var params = this.parseFormalParameters();
+	        var method = this.parsePropertyMethod(params);
+	        this.context.allowYield = previousAllowYield;
+	        return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator));
+	    };
+	    Parser.prototype.parseObjectPropertyKey = function () {
+	        var node = this.createNode();
+	        var token = this.nextToken();
+	        var key = null;
+	        switch (token.type) {
+	            case token_1.Token.StringLiteral:
+	            case token_1.Token.NumericLiteral:
+	                if (this.context.strict && token.octal) {
+	                    this.tolerateUnexpectedToken(token, messages_1.Messages.StrictOctalLiteral);
+	                }
+	                var raw = this.getTokenRaw(token);
+	                key = this.finalize(node, new Node.Literal(token.value, raw));
+	                break;
+	            case token_1.Token.Identifier:
+	            case token_1.Token.BooleanLiteral:
+	            case token_1.Token.NullLiteral:
+	            case token_1.Token.Keyword:
+	                key = this.finalize(node, new Node.Identifier(token.value));
+	                break;
+	            case token_1.Token.Punctuator:
+	                if (token.value === '[') {
+	                    key = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	                    this.expect(']');
+	                }
+	                else {
+	                    this.throwUnexpectedToken(token);
+	                }
+	                break;
+	            default:
+	                this.throwUnexpectedToken(token);
+	        }
+	        return key;
+	    };
+	    Parser.prototype.isPropertyKey = function (key, value) {
+	        return (key.type === syntax_1.Syntax.Identifier && key.name === value) ||
+	            (key.type === syntax_1.Syntax.Literal && key.value === value);
+	    };
+	    Parser.prototype.parseObjectProperty = function (hasProto) {
+	        var node = this.createNode();
+	        var token = this.lookahead;
+	        var kind;
+	        var key;
+	        var value;
+	        var computed = false;
+	        var method = false;
+	        var shorthand = false;
+	        if (token.type === token_1.Token.Identifier) {
+	            this.nextToken();
+	            key = this.finalize(node, new Node.Identifier(token.value));
+	        }
+	        else if (this.match('*')) {
+	            this.nextToken();
+	        }
+	        else {
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	        }
+	        var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead);
+	        if (token.type === token_1.Token.Identifier && token.value === 'get' && lookaheadPropertyKey) {
+	            kind = 'get';
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	            this.context.allowYield = false;
+	            value = this.parseGetterMethod();
+	        }
+	        else if (token.type === token_1.Token.Identifier && token.value === 'set' && lookaheadPropertyKey) {
+	            kind = 'set';
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	            value = this.parseSetterMethod();
+	        }
+	        else if (token.type === token_1.Token.Punctuator && token.value === '*' && lookaheadPropertyKey) {
+	            kind = 'init';
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	            value = this.parseGeneratorMethod();
+	            method = true;
+	        }
+	        else {
+	            if (!key) {
+	                this.throwUnexpectedToken(this.lookahead);
+	            }
+	            kind = 'init';
+	            if (this.match(':')) {
+	                if (!computed && this.isPropertyKey(key, '__proto__')) {
+	                    if (hasProto.value) {
+	                        this.tolerateError(messages_1.Messages.DuplicateProtoProperty);
+	                    }
+	                    hasProto.value = true;
+	                }
+	                this.nextToken();
+	                value = this.inheritCoverGrammar(this.parseAssignmentExpression);
+	            }
+	            else if (this.match('(')) {
+	                value = this.parsePropertyMethodFunction();
+	                method = true;
+	            }
+	            else if (token.type === token_1.Token.Identifier) {
+	                var id = this.finalize(node, new Node.Identifier(token.value));
+	                if (this.match('=')) {
+	                    this.context.firstCoverInitializedNameError = this.lookahead;
+	                    this.nextToken();
+	                    shorthand = true;
+	                    var init = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	                    value = this.finalize(node, new Node.AssignmentPattern(id, init));
+	                }
+	                else {
+	                    shorthand = true;
+	                    value = id;
+	                }
+	            }
+	            else {
+	                this.throwUnexpectedToken(this.nextToken());
+	            }
+	        }
+	        return this.finalize(node, new Node.Property(kind, key, computed, value, method, shorthand));
+	    };
+	    Parser.prototype.parseObjectInitializer = function () {
+	        var node = this.createNode();
+	        this.expect('{');
+	        var properties = [];
+	        var hasProto = { value: false };
+	        while (!this.match('}')) {
+	            properties.push(this.parseObjectProperty(hasProto));
+	            if (!this.match('}')) {
+	                this.expectCommaSeparator();
+	            }
+	        }
+	        this.expect('}');
+	        return this.finalize(node, new Node.ObjectExpression(properties));
+	    };
+	    // ECMA-262 12.2.9 Template Literals
+	    Parser.prototype.parseTemplateHead = function () {
+	        assert_1.assert(this.lookahead.head, 'Template literal must start with a template head');
+	        var node = this.createNode();
+	        var token = this.nextToken();
+	        var value = {
+	            raw: token.value.raw,
+	            cooked: token.value.cooked
+	        };
+	        return this.finalize(node, new Node.TemplateElement(value, token.tail));
+	    };
+	    Parser.prototype.parseTemplateElement = function () {
+	        if (this.lookahead.type !== token_1.Token.Template) {
+	            this.throwUnexpectedToken();
+	        }
+	        var node = this.createNode();
+	        var token = this.nextToken();
+	        var value = {
+	            raw: token.value.raw,
+	            cooked: token.value.cooked
+	        };
+	        return this.finalize(node, new Node.TemplateElement(value, token.tail));
+	    };
+	    Parser.prototype.parseTemplateLiteral = function () {
+	        var node = this.createNode();
+	        var expressions = [];
+	        var quasis = [];
+	        var quasi = this.parseTemplateHead();
+	        quasis.push(quasi);
+	        while (!quasi.tail) {
+	            expressions.push(this.parseExpression());
+	            quasi = this.parseTemplateElement();
+	            quasis.push(quasi);
+	        }
+	        return this.finalize(node, new Node.TemplateLiteral(quasis, expressions));
+	    };
+	    // ECMA-262 12.2.10 The Grouping Operator
+	    Parser.prototype.reinterpretExpressionAsPattern = function (expr) {
+	        switch (expr.type) {
+	            case syntax_1.Syntax.Identifier:
+	            case syntax_1.Syntax.MemberExpression:
+	            case syntax_1.Syntax.RestElement:
+	            case syntax_1.Syntax.AssignmentPattern:
+	                break;
+	            case syntax_1.Syntax.SpreadElement:
+	                expr.type = syntax_1.Syntax.RestElement;
+	                this.reinterpretExpressionAsPattern(expr.argument);
+	                break;
+	            case syntax_1.Syntax.ArrayExpression:
+	                expr.type = syntax_1.Syntax.ArrayPattern;
+	                for (var i = 0; i < expr.elements.length; i++) {
+	                    if (expr.elements[i] !== null) {
+	                        this.reinterpretExpressionAsPattern(expr.elements[i]);
+	                    }
+	                }
+	                break;
+	            case syntax_1.Syntax.ObjectExpression:
+	                expr.type = syntax_1.Syntax.ObjectPattern;
+	                for (var i = 0; i < expr.properties.length; i++) {
+	                    this.reinterpretExpressionAsPattern(expr.properties[i].value);
+	                }
+	                break;
+	            case syntax_1.Syntax.AssignmentExpression:
+	                expr.type = syntax_1.Syntax.AssignmentPattern;
+	                delete expr.operator;
+	                this.reinterpretExpressionAsPattern(expr.left);
+	                break;
+	            default:
+	                // Allow other node type for tolerant parsing.
+	                break;
+	        }
+	    };
+	    Parser.prototype.parseGroupExpression = function () {
+	        var expr;
+	        this.expect('(');
+	        if (this.match(')')) {
+	            this.nextToken();
+	            if (!this.match('=>')) {
+	                this.expect('=>');
+	            }
+	            expr = {
+	                type: ArrowParameterPlaceHolder,
+	                params: []
+	            };
+	        }
+	        else {
+	            var startToken = this.lookahead;
+	            var params = [];
+	            if (this.match('...')) {
+	                expr = this.parseRestElement(params);
+	                this.expect(')');
+	                if (!this.match('=>')) {
+	                    this.expect('=>');
+	                }
+	                expr = {
+	                    type: ArrowParameterPlaceHolder,
+	                    params: [expr]
+	                };
+	            }
+	            else {
+	                var arrow = false;
+	                this.context.isBindingElement = true;
+	                expr = this.inheritCoverGrammar(this.parseAssignmentExpression);
+	                if (this.match(',')) {
+	                    var expressions = [];
+	                    this.context.isAssignmentTarget = false;
+	                    expressions.push(expr);
+	                    while (this.startMarker.index < this.scanner.length) {
+	                        if (!this.match(',')) {
+	                            break;
+	                        }
+	                        this.nextToken();
+	                        if (this.match('...')) {
+	                            if (!this.context.isBindingElement) {
+	                                this.throwUnexpectedToken(this.lookahead);
+	                            }
+	                            expressions.push(this.parseRestElement(params));
+	                            this.expect(')');
+	                            if (!this.match('=>')) {
+	                                this.expect('=>');
+	                            }
+	                            this.context.isBindingElement = false;
+	                            for (var i = 0; i < expressions.length; i++) {
+	                                this.reinterpretExpressionAsPattern(expressions[i]);
+	                            }
+	                            arrow = true;
+	                            expr = {
+	                                type: ArrowParameterPlaceHolder,
+	                                params: expressions
+	                            };
+	                        }
+	                        else {
+	                            expressions.push(this.inheritCoverGrammar(this.parseAssignmentExpression));
+	                        }
+	                        if (arrow) {
+	                            break;
+	                        }
+	                    }
+	                    if (!arrow) {
+	                        expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions));
+	                    }
+	                }
+	                if (!arrow) {
+	                    this.expect(')');
+	                    if (this.match('=>')) {
+	                        if (expr.type === syntax_1.Syntax.Identifier && expr.name === 'yield') {
+	                            arrow = true;
+	                            expr = {
+	                                type: ArrowParameterPlaceHolder,
+	                                params: [expr]
+	                            };
+	                        }
+	                        if (!arrow) {
+	                            if (!this.context.isBindingElement) {
+	                                this.throwUnexpectedToken(this.lookahead);
+	                            }
+	                            if (expr.type === syntax_1.Syntax.SequenceExpression) {
+	                                for (var i = 0; i < expr.expressions.length; i++) {
+	                                    this.reinterpretExpressionAsPattern(expr.expressions[i]);
+	                                }
+	                            }
+	                            else {
+	                                this.reinterpretExpressionAsPattern(expr);
+	                            }
+	                            var params_1 = (expr.type === syntax_1.Syntax.SequenceExpression ? expr.expressions : [expr]);
+	                            expr = {
+	                                type: ArrowParameterPlaceHolder,
+	                                params: params_1
+	                            };
+	                        }
+	                    }
+	                    this.context.isBindingElement = false;
+	                }
+	            }
+	        }
+	        return expr;
+	    };
+	    // ECMA-262 12.3 Left-Hand-Side Expressions
+	    Parser.prototype.parseArguments = function () {
+	        this.expect('(');
+	        var args = [];
+	        if (!this.match(')')) {
+	            while (true) {
+	                var expr = this.match('...') ? this.parseSpreadElement() :
+	                    this.isolateCoverGrammar(this.parseAssignmentExpression);
+	                args.push(expr);
+	                if (this.match(')')) {
+	                    break;
+	                }
+	                this.expectCommaSeparator();
+	            }
+	        }
+	        this.expect(')');
+	        return args;
+	    };
+	    Parser.prototype.isIdentifierName = function (token) {
+	        return token.type === token_1.Token.Identifier ||
+	            token.type === token_1.Token.Keyword ||
+	            token.type === token_1.Token.BooleanLiteral ||
+	            token.type === token_1.Token.NullLiteral;
+	    };
+	    Parser.prototype.parseIdentifierName = function () {
+	        var node = this.createNode();
+	        var token = this.nextToken();
+	        if (!this.isIdentifierName(token)) {
+	            this.throwUnexpectedToken(token);
+	        }
+	        return this.finalize(node, new Node.Identifier(token.value));
+	    };
+	    Parser.prototype.parseNewExpression = function () {
+	        var node = this.createNode();
+	        var id = this.parseIdentifierName();
+	        assert_1.assert(id.name === 'new', 'New expression must start with `new`');
+	        var expr;
+	        if (this.match('.')) {
+	            this.nextToken();
+	            if (this.lookahead.type === token_1.Token.Identifier && this.context.inFunctionBody && this.lookahead.value === 'target') {
+	                var property = this.parseIdentifierName();
+	                expr = new Node.MetaProperty(id, property);
+	            }
+	            else {
+	                this.throwUnexpectedToken(this.lookahead);
+	            }
+	        }
+	        else {
+	            var callee = this.isolateCoverGrammar(this.parseLeftHandSideExpression);
+	            var args = this.match('(') ? this.parseArguments() : [];
+	            expr = new Node.NewExpression(callee, args);
+	            this.context.isAssignmentTarget = false;
+	            this.context.isBindingElement = false;
+	        }
+	        return this.finalize(node, expr);
+	    };
+	    Parser.prototype.parseLeftHandSideExpressionAllowCall = function () {
+	        var startToken = this.lookahead;
+	        var previousAllowIn = this.context.allowIn;
+	        this.context.allowIn = true;
+	        var expr;
+	        if (this.matchKeyword('super') && this.context.inFunctionBody) {
+	            expr = this.createNode();
+	            this.nextToken();
+	            expr = this.finalize(expr, new Node.Super());
+	            if (!this.match('(') && !this.match('.') && !this.match('[')) {
+	                this.throwUnexpectedToken(this.lookahead);
+	            }
+	        }
+	        else {
+	            expr = this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression);
+	        }
+	        while (true) {
+	            if (this.match('.')) {
+	                this.context.isBindingElement = false;
+	                this.context.isAssignmentTarget = true;
+	                this.expect('.');
+	                var property = this.parseIdentifierName();
+	                expr = this.finalize(this.startNode(startToken), new Node.StaticMemberExpression(expr, property));
+	            }
+	            else if (this.match('(')) {
+	                this.context.isBindingElement = false;
+	                this.context.isAssignmentTarget = false;
+	                var args = this.parseArguments();
+	                expr = this.finalize(this.startNode(startToken), new Node.CallExpression(expr, args));
+	            }
+	            else if (this.match('[')) {
+	                this.context.isBindingElement = false;
+	                this.context.isAssignmentTarget = true;
+	                this.expect('[');
+	                var property = this.isolateCoverGrammar(this.parseExpression);
+	                this.expect(']');
+	                expr = this.finalize(this.startNode(startToken), new Node.ComputedMemberExpression(expr, property));
+	            }
+	            else if (this.lookahead.type === token_1.Token.Template && this.lookahead.head) {
+	                var quasi = this.parseTemplateLiteral();
+	                expr = this.finalize(this.startNode(startToken), new Node.TaggedTemplateExpression(expr, quasi));
+	            }
+	            else {
+	                break;
+	            }
+	        }
+	        this.context.allowIn = previousAllowIn;
+	        return expr;
+	    };
+	    Parser.prototype.parseSuper = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('super');
+	        if (!this.match('[') && !this.match('.')) {
+	            this.throwUnexpectedToken(this.lookahead);
+	        }
+	        return this.finalize(node, new Node.Super());
+	    };
+	    Parser.prototype.parseLeftHandSideExpression = function () {
+	        assert_1.assert(this.context.allowIn, 'callee of new expression always allow in keyword.');
+	        var node = this.startNode(this.lookahead);
+	        var expr = (this.matchKeyword('super') && this.context.inFunctionBody) ? this.parseSuper() :
+	            this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression);
+	        while (true) {
+	            if (this.match('[')) {
+	                this.context.isBindingElement = false;
+	                this.context.isAssignmentTarget = true;
+	                this.expect('[');
+	                var property = this.isolateCoverGrammar(this.parseExpression);
+	                this.expect(']');
+	                expr = this.finalize(node, new Node.ComputedMemberExpression(expr, property));
+	            }
+	            else if (this.match('.')) {
+	                this.context.isBindingElement = false;
+	                this.context.isAssignmentTarget = true;
+	                this.expect('.');
+	                var property = this.parseIdentifierName();
+	                expr = this.finalize(node, new Node.StaticMemberExpression(expr, property));
+	            }
+	            else if (this.lookahead.type === token_1.Token.Template && this.lookahead.head) {
+	                var quasi = this.parseTemplateLiteral();
+	                expr = this.finalize(node, new Node.TaggedTemplateExpression(expr, quasi));
+	            }
+	            else {
+	                break;
+	            }
+	        }
+	        return expr;
+	    };
+	    // ECMA-262 12.4 Update Expressions
+	    Parser.prototype.parseUpdateExpression = function () {
+	        var expr;
+	        var startToken = this.lookahead;
+	        if (this.match('++') || this.match('--')) {
+	            var node = this.startNode(startToken);
+	            var token = this.nextToken();
+	            expr = this.inheritCoverGrammar(this.parseUnaryExpression);
+	            if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) {
+	                this.tolerateError(messages_1.Messages.StrictLHSPrefix);
+	            }
+	            if (!this.context.isAssignmentTarget) {
+	                this.tolerateError(messages_1.Messages.InvalidLHSInAssignment);
+	            }
+	            var prefix = true;
+	            expr = this.finalize(node, new Node.UpdateExpression(token.value, expr, prefix));
+	            this.context.isAssignmentTarget = false;
+	            this.context.isBindingElement = false;
+	        }
+	        else {
+	            expr = this.inheritCoverGrammar(this.parseLeftHandSideExpressionAllowCall);
+	            if (!this.hasLineTerminator && this.lookahead.type === token_1.Token.Punctuator) {
+	                if (this.match('++') || this.match('--')) {
+	                    if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) {
+	                        this.tolerateError(messages_1.Messages.StrictLHSPostfix);
+	                    }
+	                    if (!this.context.isAssignmentTarget) {
+	                        this.tolerateError(messages_1.Messages.InvalidLHSInAssignment);
+	                    }
+	                    this.context.isAssignmentTarget = false;
+	                    this.context.isBindingElement = false;
+	                    var operator = this.nextToken().value;
+	                    var prefix = false;
+	                    expr = this.finalize(this.startNode(startToken), new Node.UpdateExpression(operator, expr, prefix));
+	                }
+	            }
+	        }
+	        return expr;
+	    };
+	    // ECMA-262 12.5 Unary Operators
+	    Parser.prototype.parseUnaryExpression = function () {
+	        var expr;
+	        if (this.match('+') || this.match('-') || this.match('~') || this.match('!') ||
+	            this.matchKeyword('delete') || this.matchKeyword('void') || this.matchKeyword('typeof')) {
+	            var node = this.startNode(this.lookahead);
+	            var token = this.nextToken();
+	            expr = this.inheritCoverGrammar(this.parseUnaryExpression);
+	            expr = this.finalize(node, new Node.UnaryExpression(token.value, expr));
+	            if (this.context.strict && expr.operator === 'delete' && expr.argument.type === syntax_1.Syntax.Identifier) {
+	                this.tolerateError(messages_1.Messages.StrictDelete);
+	            }
+	            this.context.isAssignmentTarget = false;
+	            this.context.isBindingElement = false;
+	        }
+	        else {
+	            expr = this.parseUpdateExpression();
+	        }
+	        return expr;
+	    };
+	    Parser.prototype.parseExponentiationExpression = function () {
+	        var startToken = this.lookahead;
+	        var expr = this.inheritCoverGrammar(this.parseUnaryExpression);
+	        if (expr.type !== syntax_1.Syntax.UnaryExpression && this.match('**')) {
+	            this.nextToken();
+	            this.context.isAssignmentTarget = false;
+	            this.context.isBindingElement = false;
+	            var left = expr;
+	            var right = this.isolateCoverGrammar(this.parseExponentiationExpression);
+	            expr = this.finalize(this.startNode(startToken), new Node.BinaryExpression('**', left, right));
+	        }
+	        return expr;
+	    };
+	    // ECMA-262 12.6 Exponentiation Operators
+	    // ECMA-262 12.7 Multiplicative Operators
+	    // ECMA-262 12.8 Additive Operators
+	    // ECMA-262 12.9 Bitwise Shift Operators
+	    // ECMA-262 12.10 Relational Operators
+	    // ECMA-262 12.11 Equality Operators
+	    // ECMA-262 12.12 Binary Bitwise Operators
+	    // ECMA-262 12.13 Binary Logical Operators
+	    Parser.prototype.binaryPrecedence = function (token) {
+	        var op = token.value;
+	        var precedence;
+	        if (token.type === token_1.Token.Punctuator) {
+	            precedence = this.operatorPrecedence[op] || 0;
+	        }
+	        else if (token.type === token_1.Token.Keyword) {
+	            precedence = (op === 'instanceof' || (this.context.allowIn && op === 'in')) ? 7 : 0;
+	        }
+	        else {
+	            precedence = 0;
+	        }
+	        return precedence;
+	    };
+	    Parser.prototype.parseBinaryExpression = function () {
+	        var startToken = this.lookahead;
+	        var expr = this.inheritCoverGrammar(this.parseExponentiationExpression);
+	        var token = this.lookahead;
+	        var prec = this.binaryPrecedence(token);
+	        if (prec > 0) {
+	            this.nextToken();
+	            token.prec = prec;
+	            this.context.isAssignmentTarget = false;
+	            this.context.isBindingElement = false;
+	            var markers = [startToken, this.lookahead];
+	            var left = expr;
+	            var right = this.isolateCoverGrammar(this.parseExponentiationExpression);
+	            var stack = [left, token, right];
+	            while (true) {
+	                prec = this.binaryPrecedence(this.lookahead);
+	                if (prec <= 0) {
+	                    break;
+	                }
+	                // Reduce: make a binary expression from the three topmost entries.
+	                while ((stack.length > 2) && (prec <= stack[stack.length - 2].prec)) {
+	                    right = stack.pop();
+	                    var operator = stack.pop().value;
+	                    left = stack.pop();
+	                    markers.pop();
+	                    var node = this.startNode(markers[markers.length - 1]);
+	                    stack.push(this.finalize(node, new Node.BinaryExpression(operator, left, right)));
+	                }
+	                // Shift.
+	                token = this.nextToken();
+	                token.prec = prec;
+	                stack.push(token);
+	                markers.push(this.lookahead);
+	                stack.push(this.isolateCoverGrammar(this.parseExponentiationExpression));
+	            }
+	            // Final reduce to clean-up the stack.
+	            var i = stack.length - 1;
+	            expr = stack[i];
+	            markers.pop();
+	            while (i > 1) {
+	                var node = this.startNode(markers.pop());
+	                expr = this.finalize(node, new Node.BinaryExpression(stack[i - 1].value, stack[i - 2], expr));
+	                i -= 2;
+	            }
+	        }
+	        return expr;
+	    };
+	    // ECMA-262 12.14 Conditional Operator
+	    Parser.prototype.parseConditionalExpression = function () {
+	        var startToken = this.lookahead;
+	        var expr = this.inheritCoverGrammar(this.parseBinaryExpression);
+	        if (this.match('?')) {
+	            this.nextToken();
+	            var previousAllowIn = this.context.allowIn;
+	            this.context.allowIn = true;
+	            var consequent = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	            this.context.allowIn = previousAllowIn;
+	            this.expect(':');
+	            var alternate = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	            expr = this.finalize(this.startNode(startToken), new Node.ConditionalExpression(expr, consequent, alternate));
+	            this.context.isAssignmentTarget = false;
+	            this.context.isBindingElement = false;
+	        }
+	        return expr;
+	    };
+	    // ECMA-262 12.15 Assignment Operators
+	    Parser.prototype.checkPatternParam = function (options, param) {
+	        switch (param.type) {
+	            case syntax_1.Syntax.Identifier:
+	                this.validateParam(options, param, param.name);
+	                break;
+	            case syntax_1.Syntax.RestElement:
+	                this.checkPatternParam(options, param.argument);
+	                break;
+	            case syntax_1.Syntax.AssignmentPattern:
+	                this.checkPatternParam(options, param.left);
+	                break;
+	            case syntax_1.Syntax.ArrayPattern:
+	                for (var i = 0; i < param.elements.length; i++) {
+	                    if (param.elements[i] !== null) {
+	                        this.checkPatternParam(options, param.elements[i]);
+	                    }
+	                }
+	                break;
+	            case syntax_1.Syntax.YieldExpression:
+	                break;
+	            default:
+	                assert_1.assert(param.type === syntax_1.Syntax.ObjectPattern, 'Invalid type');
+	                for (var i = 0; i < param.properties.length; i++) {
+	                    this.checkPatternParam(options, param.properties[i].value);
+	                }
+	                break;
+	        }
+	    };
+	    Parser.prototype.reinterpretAsCoverFormalsList = function (expr) {
+	        var params = [expr];
+	        var options;
+	        switch (expr.type) {
+	            case syntax_1.Syntax.Identifier:
+	                break;
+	            case ArrowParameterPlaceHolder:
+	                params = expr.params;
+	                break;
+	            default:
+	                return null;
+	        }
+	        options = {
+	            paramSet: {}
+	        };
+	        for (var i = 0; i < params.length; ++i) {
+	            var param = params[i];
+	            if (param.type === syntax_1.Syntax.AssignmentPattern) {
+	                if (param.right.type === syntax_1.Syntax.YieldExpression) {
+	                    if (param.right.argument) {
+	                        this.throwUnexpectedToken(this.lookahead);
+	                    }
+	                    param.right.type = syntax_1.Syntax.Identifier;
+	                    param.right.name = 'yield';
+	                    delete param.right.argument;
+	                    delete param.right.delegate;
+	                }
+	            }
+	            this.checkPatternParam(options, param);
+	            params[i] = param;
+	        }
+	        if (this.context.strict || !this.context.allowYield) {
+	            for (var i = 0; i < params.length; ++i) {
+	                var param = params[i];
+	                if (param.type === syntax_1.Syntax.YieldExpression) {
+	                    this.throwUnexpectedToken(this.lookahead);
+	                }
+	            }
+	        }
+	        if (options.message === messages_1.Messages.StrictParamDupe) {
+	            var token = this.context.strict ? options.stricted : options.firstRestricted;
+	            this.throwUnexpectedToken(token, options.message);
+	        }
+	        return {
+	            params: params,
+	            stricted: options.stricted,
+	            firstRestricted: options.firstRestricted,
+	            message: options.message
+	        };
+	    };
+	    Parser.prototype.parseAssignmentExpression = function () {
+	        var expr;
+	        if (!this.context.allowYield && this.matchKeyword('yield')) {
+	            expr = this.parseYieldExpression();
+	        }
+	        else {
+	            var startToken = this.lookahead;
+	            var token = startToken;
+	            expr = this.parseConditionalExpression();
+	            if (expr.type === ArrowParameterPlaceHolder || this.match('=>')) {
+	                // ECMA-262 14.2 Arrow Function Definitions
+	                this.context.isAssignmentTarget = false;
+	                this.context.isBindingElement = false;
+	                var list = this.reinterpretAsCoverFormalsList(expr);
+	                if (list) {
+	                    if (this.hasLineTerminator) {
+	                        this.tolerateUnexpectedToken(this.lookahead);
+	                    }
+	                    this.context.firstCoverInitializedNameError = null;
+	                    var previousStrict = this.context.strict;
+	                    var previousAllowYield = this.context.allowYield;
+	                    this.context.allowYield = true;
+	                    var node = this.startNode(startToken);
+	                    this.expect('=>');
+	                    var body = this.match('{') ? this.parseFunctionSourceElements() :
+	                        this.isolateCoverGrammar(this.parseAssignmentExpression);
+	                    var expression = body.type !== syntax_1.Syntax.BlockStatement;
+	                    if (this.context.strict && list.firstRestricted) {
+	                        this.throwUnexpectedToken(list.firstRestricted, list.message);
+	                    }
+	                    if (this.context.strict && list.stricted) {
+	                        this.tolerateUnexpectedToken(list.stricted, list.message);
+	                    }
+	                    expr = this.finalize(node, new Node.ArrowFunctionExpression(list.params, body, expression));
+	                    this.context.strict = previousStrict;
+	                    this.context.allowYield = previousAllowYield;
+	                }
+	            }
+	            else {
+	                if (this.matchAssign()) {
+	                    if (!this.context.isAssignmentTarget) {
+	                        this.tolerateError(messages_1.Messages.InvalidLHSInAssignment);
+	                    }
+	                    if (this.context.strict && expr.type === syntax_1.Syntax.Identifier) {
+	                        var id = (expr);
+	                        if (this.scanner.isRestrictedWord(id.name)) {
+	                            this.tolerateUnexpectedToken(token, messages_1.Messages.StrictLHSAssignment);
+	                        }
+	                        if (this.scanner.isStrictModeReservedWord(id.name)) {
+	                            this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord);
+	                        }
+	                    }
+	                    if (!this.match('=')) {
+	                        this.context.isAssignmentTarget = false;
+	                        this.context.isBindingElement = false;
+	                    }
+	                    else {
+	                        this.reinterpretExpressionAsPattern(expr);
+	                    }
+	                    token = this.nextToken();
+	                    var right = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	                    expr = this.finalize(this.startNode(startToken), new Node.AssignmentExpression(token.value, expr, right));
+	                    this.context.firstCoverInitializedNameError = null;
+	                }
+	            }
+	        }
+	        return expr;
+	    };
+	    // ECMA-262 12.16 Comma Operator
+	    Parser.prototype.parseExpression = function () {
+	        var startToken = this.lookahead;
+	        var expr = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	        if (this.match(',')) {
+	            var expressions = [];
+	            expressions.push(expr);
+	            while (this.startMarker.index < this.scanner.length) {
+	                if (!this.match(',')) {
+	                    break;
+	                }
+	                this.nextToken();
+	                expressions.push(this.isolateCoverGrammar(this.parseAssignmentExpression));
+	            }
+	            expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions));
+	        }
+	        return expr;
+	    };
+	    // ECMA-262 13.2 Block
+	    Parser.prototype.parseStatementListItem = function () {
+	        var statement = null;
+	        this.context.isAssignmentTarget = true;
+	        this.context.isBindingElement = true;
+	        if (this.lookahead.type === token_1.Token.Keyword) {
+	            switch (this.lookahead.value) {
+	                case 'export':
+	                    if (this.sourceType !== 'module') {
+	                        this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalExportDeclaration);
+	                    }
+	                    statement = this.parseExportDeclaration();
+	                    break;
+	                case 'import':
+	                    if (this.sourceType !== 'module') {
+	                        this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalImportDeclaration);
+	                    }
+	                    statement = this.parseImportDeclaration();
+	                    break;
+	                case 'const':
+	                    statement = this.parseLexicalDeclaration({ inFor: false });
+	                    break;
+	                case 'function':
+	                    statement = this.parseFunctionDeclaration();
+	                    break;
+	                case 'class':
+	                    statement = this.parseClassDeclaration();
+	                    break;
+	                case 'let':
+	                    statement = this.isLexicalDeclaration() ? this.parseLexicalDeclaration({ inFor: false }) : this.parseStatement();
+	                    break;
+	                default:
+	                    statement = this.parseStatement();
+	                    break;
+	            }
+	        }
+	        else {
+	            statement = this.parseStatement();
+	        }
+	        return statement;
+	    };
+	    Parser.prototype.parseBlock = function () {
+	        var node = this.createNode();
+	        this.expect('{');
+	        var block = [];
+	        while (true) {
+	            if (this.match('}')) {
+	                break;
+	            }
+	            block.push(this.parseStatementListItem());
+	        }
+	        this.expect('}');
+	        return this.finalize(node, new Node.BlockStatement(block));
+	    };
+	    // ECMA-262 13.3.1 Let and Const Declarations
+	    Parser.prototype.parseLexicalBinding = function (kind, options) {
+	        var node = this.createNode();
+	        var params = [];
+	        var id = this.parsePattern(params, kind);
+	        // ECMA-262 12.2.1
+	        if (this.context.strict && id.type === syntax_1.Syntax.Identifier) {
+	            if (this.scanner.isRestrictedWord((id).name)) {
+	                this.tolerateError(messages_1.Messages.StrictVarName);
+	            }
+	        }
+	        var init = null;
+	        if (kind === 'const') {
+	            if (!this.matchKeyword('in') && !this.matchContextualKeyword('of')) {
+	                this.expect('=');
+	                init = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	            }
+	        }
+	        else if ((!options.inFor && id.type !== syntax_1.Syntax.Identifier) || this.match('=')) {
+	            this.expect('=');
+	            init = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	        }
+	        return this.finalize(node, new Node.VariableDeclarator(id, init));
+	    };
+	    Parser.prototype.parseBindingList = function (kind, options) {
+	        var list = [this.parseLexicalBinding(kind, options)];
+	        while (this.match(',')) {
+	            this.nextToken();
+	            list.push(this.parseLexicalBinding(kind, options));
+	        }
+	        return list;
+	    };
+	    Parser.prototype.isLexicalDeclaration = function () {
+	        var previousIndex = this.scanner.index;
+	        var previousLineNumber = this.scanner.lineNumber;
+	        var previousLineStart = this.scanner.lineStart;
+	        this.collectComments();
+	        var next = this.scanner.lex();
+	        this.scanner.index = previousIndex;
+	        this.scanner.lineNumber = previousLineNumber;
+	        this.scanner.lineStart = previousLineStart;
+	        return (next.type === token_1.Token.Identifier) ||
+	            (next.type === token_1.Token.Punctuator && next.value === '[') ||
+	            (next.type === token_1.Token.Punctuator && next.value === '{') ||
+	            (next.type === token_1.Token.Keyword && next.value === 'let') ||
+	            (next.type === token_1.Token.Keyword && next.value === 'yield');
+	    };
+	    Parser.prototype.parseLexicalDeclaration = function (options) {
+	        var node = this.createNode();
+	        var kind = this.nextToken().value;
+	        assert_1.assert(kind === 'let' || kind === 'const', 'Lexical declaration must be either let or const');
+	        var declarations = this.parseBindingList(kind, options);
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.VariableDeclaration(declarations, kind));
+	    };
+	    // ECMA-262 13.3.3 Destructuring Binding Patterns
+	    Parser.prototype.parseBindingRestElement = function (params, kind) {
+	        var node = this.createNode();
+	        this.expect('...');
+	        var arg = this.parsePattern(params, kind);
+	        return this.finalize(node, new Node.RestElement(arg));
+	    };
+	    Parser.prototype.parseArrayPattern = function (params, kind) {
+	        var node = this.createNode();
+	        this.expect('[');
+	        var elements = [];
+	        while (!this.match(']')) {
+	            if (this.match(',')) {
+	                this.nextToken();
+	                elements.push(null);
+	            }
+	            else {
+	                if (this.match('...')) {
+	                    elements.push(this.parseBindingRestElement(params, kind));
+	                    break;
+	                }
+	                else {
+	                    elements.push(this.parsePatternWithDefault(params, kind));
+	                }
+	                if (!this.match(']')) {
+	                    this.expect(',');
+	                }
+	            }
+	        }
+	        this.expect(']');
+	        return this.finalize(node, new Node.ArrayPattern(elements));
+	    };
+	    Parser.prototype.parsePropertyPattern = function (params, kind) {
+	        var node = this.createNode();
+	        var computed = false;
+	        var shorthand = false;
+	        var method = false;
+	        var key;
+	        var value;
+	        if (this.lookahead.type === token_1.Token.Identifier) {
+	            var keyToken = this.lookahead;
+	            key = this.parseVariableIdentifier();
+	            var init = this.finalize(node, new Node.Identifier(keyToken.value));
+	            if (this.match('=')) {
+	                params.push(keyToken);
+	                shorthand = true;
+	                this.nextToken();
+	                var expr = this.parseAssignmentExpression();
+	                value = this.finalize(this.startNode(keyToken), new Node.AssignmentPattern(init, expr));
+	            }
+	            else if (!this.match(':')) {
+	                params.push(keyToken);
+	                shorthand = true;
+	                value = init;
+	            }
+	            else {
+	                this.expect(':');
+	                value = this.parsePatternWithDefault(params, kind);
+	            }
+	        }
+	        else {
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	            this.expect(':');
+	            value = this.parsePatternWithDefault(params, kind);
+	        }
+	        return this.finalize(node, new Node.Property('init', key, computed, value, method, shorthand));
+	    };
+	    Parser.prototype.parseObjectPattern = function (params, kind) {
+	        var node = this.createNode();
+	        var properties = [];
+	        this.expect('{');
+	        while (!this.match('}')) {
+	            properties.push(this.parsePropertyPattern(params, kind));
+	            if (!this.match('}')) {
+	                this.expect(',');
+	            }
+	        }
+	        this.expect('}');
+	        return this.finalize(node, new Node.ObjectPattern(properties));
+	    };
+	    Parser.prototype.parsePattern = function (params, kind) {
+	        var pattern;
+	        if (this.match('[')) {
+	            pattern = this.parseArrayPattern(params, kind);
+	        }
+	        else if (this.match('{')) {
+	            pattern = this.parseObjectPattern(params, kind);
+	        }
+	        else {
+	            if (this.matchKeyword('let') && (kind === 'const' || kind === 'let')) {
+	                this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.UnexpectedToken);
+	            }
+	            params.push(this.lookahead);
+	            pattern = this.parseVariableIdentifier(kind);
+	        }
+	        return pattern;
+	    };
+	    Parser.prototype.parsePatternWithDefault = function (params, kind) {
+	        var startToken = this.lookahead;
+	        var pattern = this.parsePattern(params, kind);
+	        if (this.match('=')) {
+	            this.nextToken();
+	            var previousAllowYield = this.context.allowYield;
+	            this.context.allowYield = true;
+	            var right = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	            this.context.allowYield = previousAllowYield;
+	            pattern = this.finalize(this.startNode(startToken), new Node.AssignmentPattern(pattern, right));
+	        }
+	        return pattern;
+	    };
+	    // ECMA-262 13.3.2 Variable Statement
+	    Parser.prototype.parseVariableIdentifier = function (kind) {
+	        var node = this.createNode();
+	        var token = this.nextToken();
+	        if (token.type === token_1.Token.Keyword && token.value === 'yield') {
+	            if (this.context.strict) {
+	                this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord);
+	            }
+	            if (!this.context.allowYield) {
+	                this.throwUnexpectedToken(token);
+	            }
+	        }
+	        else if (token.type !== token_1.Token.Identifier) {
+	            if (this.context.strict && token.type === token_1.Token.Keyword && this.scanner.isStrictModeReservedWord(token.value)) {
+	                this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord);
+	            }
+	            else {
+	                if (this.context.strict || token.value !== 'let' || kind !== 'var') {
+	                    this.throwUnexpectedToken(token);
+	                }
+	            }
+	        }
+	        else if (this.sourceType === 'module' && token.type === token_1.Token.Identifier && token.value === 'await') {
+	            this.tolerateUnexpectedToken(token);
+	        }
+	        return this.finalize(node, new Node.Identifier(token.value));
+	    };
+	    Parser.prototype.parseVariableDeclaration = function (options) {
+	        var node = this.createNode();
+	        var params = [];
+	        var id = this.parsePattern(params, 'var');
+	        // ECMA-262 12.2.1
+	        if (this.context.strict && id.type === syntax_1.Syntax.Identifier) {
+	            if (this.scanner.isRestrictedWord((id).name)) {
+	                this.tolerateError(messages_1.Messages.StrictVarName);
+	            }
+	        }
+	        var init = null;
+	        if (this.match('=')) {
+	            this.nextToken();
+	            init = this.isolateCoverGrammar(this.parseAssignmentExpression);
+	        }
+	        else if (id.type !== syntax_1.Syntax.Identifier && !options.inFor) {
+	            this.expect('=');
+	        }
+	        return this.finalize(node, new Node.VariableDeclarator(id, init));
+	    };
+	    Parser.prototype.parseVariableDeclarationList = function (options) {
+	        var opt = { inFor: options.inFor };
+	        var list = [];
+	        list.push(this.parseVariableDeclaration(opt));
+	        while (this.match(',')) {
+	            this.nextToken();
+	            list.push(this.parseVariableDeclaration(opt));
+	        }
+	        return list;
+	    };
+	    Parser.prototype.parseVariableStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('var');
+	        var declarations = this.parseVariableDeclarationList({ inFor: false });
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.VariableDeclaration(declarations, 'var'));
+	    };
+	    // ECMA-262 13.4 Empty Statement
+	    Parser.prototype.parseEmptyStatement = function () {
+	        var node = this.createNode();
+	        this.expect(';');
+	        return this.finalize(node, new Node.EmptyStatement());
+	    };
+	    // ECMA-262 13.5 Expression Statement
+	    Parser.prototype.parseExpressionStatement = function () {
+	        var node = this.createNode();
+	        var expr = this.parseExpression();
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.ExpressionStatement(expr));
+	    };
+	    // ECMA-262 13.6 If statement
+	    Parser.prototype.parseIfStatement = function () {
+	        var node = this.createNode();
+	        var consequent;
+	        var alternate = null;
+	        this.expectKeyword('if');
+	        this.expect('(');
+	        var test = this.parseExpression();
+	        if (!this.match(')') && this.config.tolerant) {
+	            this.tolerateUnexpectedToken(this.nextToken());
+	            consequent = this.finalize(this.createNode(), new Node.EmptyStatement());
+	        }
+	        else {
+	            this.expect(')');
+	            consequent = this.parseStatement();
+	            if (this.matchKeyword('else')) {
+	                this.nextToken();
+	                alternate = this.parseStatement();
+	            }
+	        }
+	        return this.finalize(node, new Node.IfStatement(test, consequent, alternate));
+	    };
+	    // ECMA-262 13.7.2 The do-while Statement
+	    Parser.prototype.parseDoWhileStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('do');
+	        var previousInIteration = this.context.inIteration;
+	        this.context.inIteration = true;
+	        var body = this.parseStatement();
+	        this.context.inIteration = previousInIteration;
+	        this.expectKeyword('while');
+	        this.expect('(');
+	        var test = this.parseExpression();
+	        this.expect(')');
+	        if (this.match(';')) {
+	            this.nextToken();
+	        }
+	        return this.finalize(node, new Node.DoWhileStatement(body, test));
+	    };
+	    // ECMA-262 13.7.3 The while Statement
+	    Parser.prototype.parseWhileStatement = function () {
+	        var node = this.createNode();
+	        var body;
+	        this.expectKeyword('while');
+	        this.expect('(');
+	        var test = this.parseExpression();
+	        if (!this.match(')') && this.config.tolerant) {
+	            this.tolerateUnexpectedToken(this.nextToken());
+	            body = this.finalize(this.createNode(), new Node.EmptyStatement());
+	        }
+	        else {
+	            this.expect(')');
+	            var previousInIteration = this.context.inIteration;
+	            this.context.inIteration = true;
+	            body = this.parseStatement();
+	            this.context.inIteration = previousInIteration;
+	        }
+	        return this.finalize(node, new Node.WhileStatement(test, body));
+	    };
+	    // ECMA-262 13.7.4 The for Statement
+	    // ECMA-262 13.7.5 The for-in and for-of Statements
+	    Parser.prototype.parseForStatement = function () {
+	        var init = null;
+	        var test = null;
+	        var update = null;
+	        var forIn = true;
+	        var left, right;
+	        var node = this.createNode();
+	        this.expectKeyword('for');
+	        this.expect('(');
+	        if (this.match(';')) {
+	            this.nextToken();
+	        }
+	        else {
+	            if (this.matchKeyword('var')) {
+	                init = this.createNode();
+	                this.nextToken();
+	                var previousAllowIn = this.context.allowIn;
+	                this.context.allowIn = false;
+	                var declarations = this.parseVariableDeclarationList({ inFor: true });
+	                this.context.allowIn = previousAllowIn;
+	                if (declarations.length === 1 && this.matchKeyword('in')) {
+	                    var decl = declarations[0];
+	                    if (decl.init && (decl.id.type === syntax_1.Syntax.ArrayPattern || decl.id.type === syntax_1.Syntax.ObjectPattern || this.context.strict)) {
+	                        this.tolerateError(messages_1.Messages.ForInOfLoopInitializer, 'for-in');
+	                    }
+	                    init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var'));
+	                    this.nextToken();
+	                    left = init;
+	                    right = this.parseExpression();
+	                    init = null;
+	                }
+	                else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) {
+	                    init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var'));
+	                    this.nextToken();
+	                    left = init;
+	                    right = this.parseAssignmentExpression();
+	                    init = null;
+	                    forIn = false;
+	                }
+	                else {
+	                    init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var'));
+	                    this.expect(';');
+	                }
+	            }
+	            else if (this.matchKeyword('const') || this.matchKeyword('let')) {
+	                init = this.createNode();
+	                var kind = this.nextToken().value;
+	                if (!this.context.strict && this.lookahead.value === 'in') {
+	                    init = this.finalize(init, new Node.Identifier(kind));
+	                    this.nextToken();
+	                    left = init;
+	                    right = this.parseExpression();
+	                    init = null;
+	                }
+	                else {
+	                    var previousAllowIn = this.context.allowIn;
+	                    this.context.allowIn = false;
+	                    var declarations = this.parseBindingList(kind, { inFor: true });
+	                    this.context.allowIn = previousAllowIn;
+	                    if (declarations.length === 1 && declarations[0].init === null && this.matchKeyword('in')) {
+	                        init = this.finalize(init, new Node.VariableDeclaration(declarations, kind));
+	                        this.nextToken();
+	                        left = init;
+	                        right = this.parseExpression();
+	                        init = null;
+	                    }
+	                    else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) {
+	                        init = this.finalize(init, new Node.VariableDeclaration(declarations, kind));
+	                        this.nextToken();
+	                        left = init;
+	                        right = this.parseAssignmentExpression();
+	                        init = null;
+	                        forIn = false;
+	                    }
+	                    else {
+	                        this.consumeSemicolon();
+	                        init = this.finalize(init, new Node.VariableDeclaration(declarations, kind));
+	                    }
+	                }
+	            }
+	            else {
+	                var initStartToken = this.lookahead;
+	                var previousAllowIn = this.context.allowIn;
+	                this.context.allowIn = false;
+	                init = this.inheritCoverGrammar(this.parseAssignmentExpression);
+	                this.context.allowIn = previousAllowIn;
+	                if (this.matchKeyword('in')) {
+	                    if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) {
+	                        this.tolerateError(messages_1.Messages.InvalidLHSInForIn);
+	                    }
+	                    this.nextToken();
+	                    this.reinterpretExpressionAsPattern(init);
+	                    left = init;
+	                    right = this.parseExpression();
+	                    init = null;
+	                }
+	                else if (this.matchContextualKeyword('of')) {
+	                    if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) {
+	                        this.tolerateError(messages_1.Messages.InvalidLHSInForLoop);
+	                    }
+	                    this.nextToken();
+	                    this.reinterpretExpressionAsPattern(init);
+	                    left = init;
+	                    right = this.parseAssignmentExpression();
+	                    init = null;
+	                    forIn = false;
+	                }
+	                else {
+	                    if (this.match(',')) {
+	                        var initSeq = [init];
+	                        while (this.match(',')) {
+	                            this.nextToken();
+	                            initSeq.push(this.isolateCoverGrammar(this.parseAssignmentExpression));
+	                        }
+	                        init = this.finalize(this.startNode(initStartToken), new Node.SequenceExpression(initSeq));
+	                    }
+	                    this.expect(';');
+	                }
+	            }
+	        }
+	        if (typeof left === 'undefined') {
+	            if (!this.match(';')) {
+	                test = this.parseExpression();
+	            }
+	            this.expect(';');
+	            if (!this.match(')')) {
+	                update = this.parseExpression();
+	            }
+	        }
+	        var body;
+	        if (!this.match(')') && this.config.tolerant) {
+	            this.tolerateUnexpectedToken(this.nextToken());
+	            body = this.finalize(this.createNode(), new Node.EmptyStatement());
+	        }
+	        else {
+	            this.expect(')');
+	            var previousInIteration = this.context.inIteration;
+	            this.context.inIteration = true;
+	            body = this.isolateCoverGrammar(this.parseStatement);
+	            this.context.inIteration = previousInIteration;
+	        }
+	        return (typeof left === 'undefined') ?
+	            this.finalize(node, new Node.ForStatement(init, test, update, body)) :
+	            forIn ? this.finalize(node, new Node.ForInStatement(left, right, body)) :
+	                this.finalize(node, new Node.ForOfStatement(left, right, body));
+	    };
+	    // ECMA-262 13.8 The continue statement
+	    Parser.prototype.parseContinueStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('continue');
+	        var label = null;
+	        if (this.lookahead.type === token_1.Token.Identifier && !this.hasLineTerminator) {
+	            label = this.parseVariableIdentifier();
+	            var key = '$' + label.name;
+	            if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
+	                this.throwError(messages_1.Messages.UnknownLabel, label.name);
+	            }
+	        }
+	        this.consumeSemicolon();
+	        if (label === null && !this.context.inIteration) {
+	            this.throwError(messages_1.Messages.IllegalContinue);
+	        }
+	        return this.finalize(node, new Node.ContinueStatement(label));
+	    };
+	    // ECMA-262 13.9 The break statement
+	    Parser.prototype.parseBreakStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('break');
+	        var label = null;
+	        if (this.lookahead.type === token_1.Token.Identifier && !this.hasLineTerminator) {
+	            label = this.parseVariableIdentifier();
+	            var key = '$' + label.name;
+	            if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
+	                this.throwError(messages_1.Messages.UnknownLabel, label.name);
+	            }
+	        }
+	        this.consumeSemicolon();
+	        if (label === null && !this.context.inIteration && !this.context.inSwitch) {
+	            this.throwError(messages_1.Messages.IllegalBreak);
+	        }
+	        return this.finalize(node, new Node.BreakStatement(label));
+	    };
+	    // ECMA-262 13.10 The return statement
+	    Parser.prototype.parseReturnStatement = function () {
+	        if (!this.context.inFunctionBody) {
+	            this.tolerateError(messages_1.Messages.IllegalReturn);
+	        }
+	        var node = this.createNode();
+	        this.expectKeyword('return');
+	        var hasArgument = !this.match(';') && !this.match('}') &&
+	            !this.hasLineTerminator && this.lookahead.type !== token_1.Token.EOF;
+	        var argument = hasArgument ? this.parseExpression() : null;
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.ReturnStatement(argument));
+	    };
+	    // ECMA-262 13.11 The with statement
+	    Parser.prototype.parseWithStatement = function () {
+	        if (this.context.strict) {
+	            this.tolerateError(messages_1.Messages.StrictModeWith);
+	        }
+	        var node = this.createNode();
+	        this.expectKeyword('with');
+	        this.expect('(');
+	        var object = this.parseExpression();
+	        this.expect(')');
+	        var body = this.parseStatement();
+	        return this.finalize(node, new Node.WithStatement(object, body));
+	    };
+	    // ECMA-262 13.12 The switch statement
+	    Parser.prototype.parseSwitchCase = function () {
+	        var node = this.createNode();
+	        var test;
+	        if (this.matchKeyword('default')) {
+	            this.nextToken();
+	            test = null;
+	        }
+	        else {
+	            this.expectKeyword('case');
+	            test = this.parseExpression();
+	        }
+	        this.expect(':');
+	        var consequent = [];
+	        while (true) {
+	            if (this.match('}') || this.matchKeyword('default') || this.matchKeyword('case')) {
+	                break;
+	            }
+	            consequent.push(this.parseStatementListItem());
+	        }
+	        return this.finalize(node, new Node.SwitchCase(test, consequent));
+	    };
+	    Parser.prototype.parseSwitchStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('switch');
+	        this.expect('(');
+	        var discriminant = this.parseExpression();
+	        this.expect(')');
+	        var previousInSwitch = this.context.inSwitch;
+	        this.context.inSwitch = true;
+	        var cases = [];
+	        var defaultFound = false;
+	        this.expect('{');
+	        while (true) {
+	            if (this.match('}')) {
+	                break;
+	            }
+	            var clause = this.parseSwitchCase();
+	            if (clause.test === null) {
+	                if (defaultFound) {
+	                    this.throwError(messages_1.Messages.MultipleDefaultsInSwitch);
+	                }
+	                defaultFound = true;
+	            }
+	            cases.push(clause);
+	        }
+	        this.expect('}');
+	        this.context.inSwitch = previousInSwitch;
+	        return this.finalize(node, new Node.SwitchStatement(discriminant, cases));
+	    };
+	    // ECMA-262 13.13 Labelled Statements
+	    Parser.prototype.parseLabelledStatement = function () {
+	        var node = this.createNode();
+	        var expr = this.parseExpression();
+	        var statement;
+	        if ((expr.type === syntax_1.Syntax.Identifier) && this.match(':')) {
+	            this.nextToken();
+	            var id = (expr);
+	            var key = '$' + id.name;
+	            if (Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
+	                this.throwError(messages_1.Messages.Redeclaration, 'Label', id.name);
+	            }
+	            this.context.labelSet[key] = true;
+	            var labeledBody = this.parseStatement();
+	            delete this.context.labelSet[key];
+	            statement = new Node.LabeledStatement(id, labeledBody);
+	        }
+	        else {
+	            this.consumeSemicolon();
+	            statement = new Node.ExpressionStatement(expr);
+	        }
+	        return this.finalize(node, statement);
+	    };
+	    // ECMA-262 13.14 The throw statement
+	    Parser.prototype.parseThrowStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('throw');
+	        if (this.hasLineTerminator) {
+	            this.throwError(messages_1.Messages.NewlineAfterThrow);
+	        }
+	        var argument = this.parseExpression();
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.ThrowStatement(argument));
+	    };
+	    // ECMA-262 13.15 The try statement
+	    Parser.prototype.parseCatchClause = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('catch');
+	        this.expect('(');
+	        if (this.match(')')) {
+	            this.throwUnexpectedToken(this.lookahead);
+	        }
+	        var params = [];
+	        var param = this.parsePattern(params);
+	        var paramMap = {};
+	        for (var i = 0; i < params.length; i++) {
+	            var key = '$' + params[i].value;
+	            if (Object.prototype.hasOwnProperty.call(paramMap, key)) {
+	                this.tolerateError(messages_1.Messages.DuplicateBinding, params[i].value);
+	            }
+	            paramMap[key] = true;
+	        }
+	        if (this.context.strict && param.type === syntax_1.Syntax.Identifier) {
+	            if (this.scanner.isRestrictedWord((param).name)) {
+	                this.tolerateError(messages_1.Messages.StrictCatchVariable);
+	            }
+	        }
+	        this.expect(')');
+	        var body = this.parseBlock();
+	        return this.finalize(node, new Node.CatchClause(param, body));
+	    };
+	    Parser.prototype.parseFinallyClause = function () {
+	        this.expectKeyword('finally');
+	        return this.parseBlock();
+	    };
+	    Parser.prototype.parseTryStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('try');
+	        var block = this.parseBlock();
+	        var handler = this.matchKeyword('catch') ? this.parseCatchClause() : null;
+	        var finalizer = this.matchKeyword('finally') ? this.parseFinallyClause() : null;
+	        if (!handler && !finalizer) {
+	            this.throwError(messages_1.Messages.NoCatchOrFinally);
+	        }
+	        return this.finalize(node, new Node.TryStatement(block, handler, finalizer));
+	    };
+	    // ECMA-262 13.16 The debugger statement
+	    Parser.prototype.parseDebuggerStatement = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('debugger');
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.DebuggerStatement());
+	    };
+	    // ECMA-262 13 Statements
+	    Parser.prototype.parseStatement = function () {
+	        var statement = null;
+	        switch (this.lookahead.type) {
+	            case token_1.Token.BooleanLiteral:
+	            case token_1.Token.NullLiteral:
+	            case token_1.Token.NumericLiteral:
+	            case token_1.Token.StringLiteral:
+	            case token_1.Token.Template:
+	            case token_1.Token.RegularExpression:
+	                statement = this.parseExpressionStatement();
+	                break;
+	            case token_1.Token.Punctuator:
+	                var value = this.lookahead.value;
+	                if (value === '{') {
+	                    statement = this.parseBlock();
+	                }
+	                else if (value === '(') {
+	                    statement = this.parseExpressionStatement();
+	                }
+	                else if (value === ';') {
+	                    statement = this.parseEmptyStatement();
+	                }
+	                else {
+	                    statement = this.parseExpressionStatement();
+	                }
+	                break;
+	            case token_1.Token.Identifier:
+	                statement = this.parseLabelledStatement();
+	                break;
+	            case token_1.Token.Keyword:
+	                switch (this.lookahead.value) {
+	                    case 'break':
+	                        statement = this.parseBreakStatement();
+	                        break;
+	                    case 'continue':
+	                        statement = this.parseContinueStatement();
+	                        break;
+	                    case 'debugger':
+	                        statement = this.parseDebuggerStatement();
+	                        break;
+	                    case 'do':
+	                        statement = this.parseDoWhileStatement();
+	                        break;
+	                    case 'for':
+	                        statement = this.parseForStatement();
+	                        break;
+	                    case 'function':
+	                        statement = this.parseFunctionDeclaration();
+	                        break;
+	                    case 'if':
+	                        statement = this.parseIfStatement();
+	                        break;
+	                    case 'return':
+	                        statement = this.parseReturnStatement();
+	                        break;
+	                    case 'switch':
+	                        statement = this.parseSwitchStatement();
+	                        break;
+	                    case 'throw':
+	                        statement = this.parseThrowStatement();
+	                        break;
+	                    case 'try':
+	                        statement = this.parseTryStatement();
+	                        break;
+	                    case 'var':
+	                        statement = this.parseVariableStatement();
+	                        break;
+	                    case 'while':
+	                        statement = this.parseWhileStatement();
+	                        break;
+	                    case 'with':
+	                        statement = this.parseWithStatement();
+	                        break;
+	                    default:
+	                        statement = this.parseExpressionStatement();
+	                        break;
+	                }
+	                break;
+	            default:
+	                this.throwUnexpectedToken(this.lookahead);
+	        }
+	        return statement;
+	    };
+	    // ECMA-262 14.1 Function Definition
+	    Parser.prototype.parseFunctionSourceElements = function () {
+	        var node = this.createNode();
+	        this.expect('{');
+	        var body = this.parseDirectivePrologues();
+	        var previousLabelSet = this.context.labelSet;
+	        var previousInIteration = this.context.inIteration;
+	        var previousInSwitch = this.context.inSwitch;
+	        var previousInFunctionBody = this.context.inFunctionBody;
+	        this.context.labelSet = {};
+	        this.context.inIteration = false;
+	        this.context.inSwitch = false;
+	        this.context.inFunctionBody = true;
+	        while (this.startMarker.index < this.scanner.length) {
+	            if (this.match('}')) {
+	                break;
+	            }
+	            body.push(this.parseStatementListItem());
+	        }
+	        this.expect('}');
+	        this.context.labelSet = previousLabelSet;
+	        this.context.inIteration = previousInIteration;
+	        this.context.inSwitch = previousInSwitch;
+	        this.context.inFunctionBody = previousInFunctionBody;
+	        return this.finalize(node, new Node.BlockStatement(body));
+	    };
+	    Parser.prototype.validateParam = function (options, param, name) {
+	        var key = '$' + name;
+	        if (this.context.strict) {
+	            if (this.scanner.isRestrictedWord(name)) {
+	                options.stricted = param;
+	                options.message = messages_1.Messages.StrictParamName;
+	            }
+	            if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) {
+	                options.stricted = param;
+	                options.message = messages_1.Messages.StrictParamDupe;
+	            }
+	        }
+	        else if (!options.firstRestricted) {
+	            if (this.scanner.isRestrictedWord(name)) {
+	                options.firstRestricted = param;
+	                options.message = messages_1.Messages.StrictParamName;
+	            }
+	            else if (this.scanner.isStrictModeReservedWord(name)) {
+	                options.firstRestricted = param;
+	                options.message = messages_1.Messages.StrictReservedWord;
+	            }
+	            else if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) {
+	                options.stricted = param;
+	                options.message = messages_1.Messages.StrictParamDupe;
+	            }
+	        }
+	        /* istanbul ignore next */
+	        if (typeof Object.defineProperty === 'function') {
+	            Object.defineProperty(options.paramSet, key, { value: true, enumerable: true, writable: true, configurable: true });
+	        }
+	        else {
+	            options.paramSet[key] = true;
+	        }
+	    };
+	    Parser.prototype.parseRestElement = function (params) {
+	        var node = this.createNode();
+	        this.expect('...');
+	        var arg = this.parsePattern(params);
+	        if (this.match('=')) {
+	            this.throwError(messages_1.Messages.DefaultRestParameter);
+	        }
+	        if (!this.match(')')) {
+	            this.throwError(messages_1.Messages.ParameterAfterRestParameter);
+	        }
+	        return this.finalize(node, new Node.RestElement(arg));
+	    };
+	    Parser.prototype.parseFormalParameter = function (options) {
+	        var params = [];
+	        var param = this.match('...') ? this.parseRestElement(params) : this.parsePatternWithDefault(params);
+	        for (var i = 0; i < params.length; i++) {
+	            this.validateParam(options, params[i], params[i].value);
+	        }
+	        options.params.push(param);
+	        return !this.match(')');
+	    };
+	    Parser.prototype.parseFormalParameters = function (firstRestricted) {
+	        var options;
+	        options = {
+	            params: [],
+	            firstRestricted: firstRestricted
+	        };
+	        this.expect('(');
+	        if (!this.match(')')) {
+	            options.paramSet = {};
+	            while (this.startMarker.index < this.scanner.length) {
+	                if (!this.parseFormalParameter(options)) {
+	                    break;
+	                }
+	                this.expect(',');
+	            }
+	        }
+	        this.expect(')');
+	        return {
+	            params: options.params,
+	            stricted: options.stricted,
+	            firstRestricted: options.firstRestricted,
+	            message: options.message
+	        };
+	    };
+	    Parser.prototype.parseFunctionDeclaration = function (identifierIsOptional) {
+	        var node = this.createNode();
+	        this.expectKeyword('function');
+	        var isGenerator = this.match('*');
+	        if (isGenerator) {
+	            this.nextToken();
+	        }
+	        var message;
+	        var id = null;
+	        var firstRestricted = null;
+	        if (!identifierIsOptional || !this.match('(')) {
+	            var token = this.lookahead;
+	            id = this.parseVariableIdentifier();
+	            if (this.context.strict) {
+	                if (this.scanner.isRestrictedWord(token.value)) {
+	                    this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName);
+	                }
+	            }
+	            else {
+	                if (this.scanner.isRestrictedWord(token.value)) {
+	                    firstRestricted = token;
+	                    message = messages_1.Messages.StrictFunctionName;
+	                }
+	                else if (this.scanner.isStrictModeReservedWord(token.value)) {
+	                    firstRestricted = token;
+	                    message = messages_1.Messages.StrictReservedWord;
+	                }
+	            }
+	        }
+	        var previousAllowYield = this.context.allowYield;
+	        this.context.allowYield = !isGenerator;
+	        var formalParameters = this.parseFormalParameters(firstRestricted);
+	        var params = formalParameters.params;
+	        var stricted = formalParameters.stricted;
+	        firstRestricted = formalParameters.firstRestricted;
+	        if (formalParameters.message) {
+	            message = formalParameters.message;
+	        }
+	        var previousStrict = this.context.strict;
+	        var body = this.parseFunctionSourceElements();
+	        if (this.context.strict && firstRestricted) {
+	            this.throwUnexpectedToken(firstRestricted, message);
+	        }
+	        if (this.context.strict && stricted) {
+	            this.tolerateUnexpectedToken(stricted, message);
+	        }
+	        this.context.strict = previousStrict;
+	        this.context.allowYield = previousAllowYield;
+	        return this.finalize(node, new Node.FunctionDeclaration(id, params, body, isGenerator));
+	    };
+	    Parser.prototype.parseFunctionExpression = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('function');
+	        var isGenerator = this.match('*');
+	        if (isGenerator) {
+	            this.nextToken();
+	        }
+	        var message;
+	        var id = null;
+	        var firstRestricted;
+	        var previousAllowYield = this.context.allowYield;
+	        this.context.allowYield = !isGenerator;
+	        if (!this.match('(')) {
+	            var token = this.lookahead;
+	            id = (!this.context.strict && !isGenerator && this.matchKeyword('yield')) ? this.parseIdentifierName() : this.parseVariableIdentifier();
+	            if (this.context.strict) {
+	                if (this.scanner.isRestrictedWord(token.value)) {
+	                    this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName);
+	                }
+	            }
+	            else {
+	                if (this.scanner.isRestrictedWord(token.value)) {
+	                    firstRestricted = token;
+	                    message = messages_1.Messages.StrictFunctionName;
+	                }
+	                else if (this.scanner.isStrictModeReservedWord(token.value)) {
+	                    firstRestricted = token;
+	                    message = messages_1.Messages.StrictReservedWord;
+	                }
+	            }
+	        }
+	        var formalParameters = this.parseFormalParameters(firstRestricted);
+	        var params = formalParameters.params;
+	        var stricted = formalParameters.stricted;
+	        firstRestricted = formalParameters.firstRestricted;
+	        if (formalParameters.message) {
+	            message = formalParameters.message;
+	        }
+	        var previousStrict = this.context.strict;
+	        var body = this.parseFunctionSourceElements();
+	        if (this.context.strict && firstRestricted) {
+	            this.throwUnexpectedToken(firstRestricted, message);
+	        }
+	        if (this.context.strict && stricted) {
+	            this.tolerateUnexpectedToken(stricted, message);
+	        }
+	        this.context.strict = previousStrict;
+	        this.context.allowYield = previousAllowYield;
+	        return this.finalize(node, new Node.FunctionExpression(id, params, body, isGenerator));
+	    };
+	    // ECMA-262 14.1.1 Directive Prologues
+	    Parser.prototype.parseDirective = function () {
+	        var token = this.lookahead;
+	        var directive = null;
+	        var node = this.createNode();
+	        var expr = this.parseExpression();
+	        if (expr.type === syntax_1.Syntax.Literal) {
+	            directive = this.getTokenRaw(token).slice(1, -1);
+	        }
+	        this.consumeSemicolon();
+	        return this.finalize(node, directive ? new Node.Directive(expr, directive) :
+	            new Node.ExpressionStatement(expr));
+	    };
+	    Parser.prototype.parseDirectivePrologues = function () {
+	        var firstRestricted = null;
+	        var body = [];
+	        while (true) {
+	            var token = this.lookahead;
+	            if (token.type !== token_1.Token.StringLiteral) {
+	                break;
+	            }
+	            var statement = this.parseDirective();
+	            body.push(statement);
+	            var directive = statement.directive;
+	            if (typeof directive !== 'string') {
+	                break;
+	            }
+	            if (directive === 'use strict') {
+	                this.context.strict = true;
+	                if (firstRestricted) {
+	                    this.tolerateUnexpectedToken(firstRestricted, messages_1.Messages.StrictOctalLiteral);
+	                }
+	            }
+	            else {
+	                if (!firstRestricted && token.octal) {
+	                    firstRestricted = token;
+	                }
+	            }
+	        }
+	        return body;
+	    };
+	    // ECMA-262 14.3 Method Definitions
+	    Parser.prototype.qualifiedPropertyName = function (token) {
+	        switch (token.type) {
+	            case token_1.Token.Identifier:
+	            case token_1.Token.StringLiteral:
+	            case token_1.Token.BooleanLiteral:
+	            case token_1.Token.NullLiteral:
+	            case token_1.Token.NumericLiteral:
+	            case token_1.Token.Keyword:
+	                return true;
+	            case token_1.Token.Punctuator:
+	                return token.value === '[';
+	        }
+	        return false;
+	    };
+	    Parser.prototype.parseGetterMethod = function () {
+	        var node = this.createNode();
+	        this.expect('(');
+	        this.expect(')');
+	        var isGenerator = false;
+	        var params = {
+	            params: [],
+	            stricted: null,
+	            firstRestricted: null,
+	            message: null
+	        };
+	        var previousAllowYield = this.context.allowYield;
+	        this.context.allowYield = false;
+	        var method = this.parsePropertyMethod(params);
+	        this.context.allowYield = previousAllowYield;
+	        return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator));
+	    };
+	    Parser.prototype.parseSetterMethod = function () {
+	        var node = this.createNode();
+	        var options = {
+	            params: [],
+	            firstRestricted: null,
+	            paramSet: {}
+	        };
+	        var isGenerator = false;
+	        var previousAllowYield = this.context.allowYield;
+	        this.context.allowYield = false;
+	        this.expect('(');
+	        if (this.match(')')) {
+	            this.tolerateUnexpectedToken(this.lookahead);
+	        }
+	        else {
+	            this.parseFormalParameter(options);
+	        }
+	        this.expect(')');
+	        var method = this.parsePropertyMethod(options);
+	        this.context.allowYield = previousAllowYield;
+	        return this.finalize(node, new Node.FunctionExpression(null, options.params, method, isGenerator));
+	    };
+	    Parser.prototype.parseGeneratorMethod = function () {
+	        var node = this.createNode();
+	        var isGenerator = true;
+	        var previousAllowYield = this.context.allowYield;
+	        this.context.allowYield = true;
+	        var params = this.parseFormalParameters();
+	        this.context.allowYield = false;
+	        var method = this.parsePropertyMethod(params);
+	        this.context.allowYield = previousAllowYield;
+	        return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator));
+	    };
+	    // ECMA-262 14.4 Generator Function Definitions
+	    Parser.prototype.isStartOfExpression = function () {
+	        var start = true;
+	        var value = this.lookahead.value;
+	        switch (this.lookahead.type) {
+	            case token_1.Token.Punctuator:
+	                start = (value === '[') || (value === '(') || (value === '{') ||
+	                    (value === '+') || (value === '-') ||
+	                    (value === '!') || (value === '~') ||
+	                    (value === '++') || (value === '--') ||
+	                    (value === '/') || (value === '/='); // regular expression literal
+	                break;
+	            case token_1.Token.Keyword:
+	                start = (value === 'class') || (value === 'delete') ||
+	                    (value === 'function') || (value === 'let') || (value === 'new') ||
+	                    (value === 'super') || (value === 'this') || (value === 'typeof') ||
+	                    (value === 'void') || (value === 'yield');
+	                break;
+	            default:
+	                break;
+	        }
+	        return start;
+	    };
+	    Parser.prototype.parseYieldExpression = function () {
+	        var node = this.createNode();
+	        this.expectKeyword('yield');
+	        var argument = null;
+	        var delegate = false;
+	        if (!this.hasLineTerminator) {
+	            var previousAllowYield = this.context.allowYield;
+	            this.context.allowYield = false;
+	            delegate = this.match('*');
+	            if (delegate) {
+	                this.nextToken();
+	                argument = this.parseAssignmentExpression();
+	            }
+	            else if (this.isStartOfExpression()) {
+	                argument = this.parseAssignmentExpression();
+	            }
+	            this.context.allowYield = previousAllowYield;
+	        }
+	        return this.finalize(node, new Node.YieldExpression(argument, delegate));
+	    };
+	    // ECMA-262 14.5 Class Definitions
+	    Parser.prototype.parseClassElement = function (hasConstructor) {
+	        var token = this.lookahead;
+	        var node = this.createNode();
+	        var kind;
+	        var key;
+	        var value;
+	        var computed = false;
+	        var method = false;
+	        var isStatic = false;
+	        if (this.match('*')) {
+	            this.nextToken();
+	        }
+	        else {
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	            var id = key;
+	            if (id.name === 'static' && (this.qualifiedPropertyName(this.lookahead) || this.match('*'))) {
+	                token = this.lookahead;
+	                isStatic = true;
+	                computed = this.match('[');
+	                if (this.match('*')) {
+	                    this.nextToken();
+	                }
+	                else {
+	                    key = this.parseObjectPropertyKey();
+	                }
+	            }
+	        }
+	        var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead);
+	        if (token.type === token_1.Token.Identifier) {
+	            if (token.value === 'get' && lookaheadPropertyKey) {
+	                kind = 'get';
+	                computed = this.match('[');
+	                key = this.parseObjectPropertyKey();
+	                this.context.allowYield = false;
+	                value = this.parseGetterMethod();
+	            }
+	            else if (token.value === 'set' && lookaheadPropertyKey) {
+	                kind = 'set';
+	                computed = this.match('[');
+	                key = this.parseObjectPropertyKey();
+	                value = this.parseSetterMethod();
+	            }
+	        }
+	        else if (token.type === token_1.Token.Punctuator && token.value === '*' && lookaheadPropertyKey) {
+	            kind = 'init';
+	            computed = this.match('[');
+	            key = this.parseObjectPropertyKey();
+	            value = this.parseGeneratorMethod();
+	            method = true;
+	        }
+	        if (!kind && key && this.match('(')) {
+	            kind = 'init';
+	            value = this.parsePropertyMethodFunction();
+	            method = true;
+	        }
+	        if (!kind) {
+	            this.throwUnexpectedToken(this.lookahead);
+	        }
+	        if (kind === 'init') {
+	            kind = 'method';
+	        }
+	        if (!computed) {
+	            if (isStatic && this.isPropertyKey(key, 'prototype')) {
+	                this.throwUnexpectedToken(token, messages_1.Messages.StaticPrototype);
+	            }
+	            if (!isStatic && this.isPropertyKey(key, 'constructor')) {
+	                if (kind !== 'method' || !method || value.generator) {
+	                    this.throwUnexpectedToken(token, messages_1.Messages.ConstructorSpecialMethod);
+	                }
+	                if (hasConstructor.value) {
+	                    this.throwUnexpectedToken(token, messages_1.Messages.DuplicateConstructor);
+	                }
+	                else {
+	                    hasConstructor.value = true;
+	                }
+	                kind = 'constructor';
+	            }
+	        }
+	        return this.finalize(node, new Node.MethodDefinition(key, computed, value, kind, isStatic));
+	    };
+	    Parser.prototype.parseClassElementList = function () {
+	        var body = [];
+	        var hasConstructor = { value: false };
+	        this.expect('{');
+	        while (!this.match('}')) {
+	            if (this.match(';')) {
+	                this.nextToken();
+	            }
+	            else {
+	                body.push(this.parseClassElement(hasConstructor));
+	            }
+	        }
+	        this.expect('}');
+	        return body;
+	    };
+	    Parser.prototype.parseClassBody = function () {
+	        var node = this.createNode();
+	        var elementList = this.parseClassElementList();
+	        return this.finalize(node, new Node.ClassBody(elementList));
+	    };
+	    Parser.prototype.parseClassDeclaration = function (identifierIsOptional) {
+	        var node = this.createNode();
+	        var previousStrict = this.context.strict;
+	        this.context.strict = true;
+	        this.expectKeyword('class');
+	        var id = (identifierIsOptional && (this.lookahead.type !== token_1.Token.Identifier)) ? null : this.parseVariableIdentifier();
+	        var superClass = null;
+	        if (this.matchKeyword('extends')) {
+	            this.nextToken();
+	            superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall);
+	        }
+	        var classBody = this.parseClassBody();
+	        this.context.strict = previousStrict;
+	        return this.finalize(node, new Node.ClassDeclaration(id, superClass, classBody));
+	    };
+	    Parser.prototype.parseClassExpression = function () {
+	        var node = this.createNode();
+	        var previousStrict = this.context.strict;
+	        this.context.strict = true;
+	        this.expectKeyword('class');
+	        var id = (this.lookahead.type === token_1.Token.Identifier) ? this.parseVariableIdentifier() : null;
+	        var superClass = null;
+	        if (this.matchKeyword('extends')) {
+	            this.nextToken();
+	            superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall);
+	        }
+	        var classBody = this.parseClassBody();
+	        this.context.strict = previousStrict;
+	        return this.finalize(node, new Node.ClassExpression(id, superClass, classBody));
+	    };
+	    // ECMA-262 15.1 Scripts
+	    // ECMA-262 15.2 Modules
+	    Parser.prototype.parseProgram = function () {
+	        var node = this.createNode();
+	        var body = this.parseDirectivePrologues();
+	        while (this.startMarker.index < this.scanner.length) {
+	            body.push(this.parseStatementListItem());
+	        }
+	        return this.finalize(node, new Node.Program(body, this.sourceType));
+	    };
+	    // ECMA-262 15.2.2 Imports
+	    Parser.prototype.parseModuleSpecifier = function () {
+	        var node = this.createNode();
+	        if (this.lookahead.type !== token_1.Token.StringLiteral) {
+	            this.throwError(messages_1.Messages.InvalidModuleSpecifier);
+	        }
+	        var token = this.nextToken();
+	        var raw = this.getTokenRaw(token);
+	        return this.finalize(node, new Node.Literal(token.value, raw));
+	    };
+	    // import {<foo as bar>} ...;
+	    Parser.prototype.parseImportSpecifier = function () {
+	        var node = this.createNode();
+	        var imported;
+	        var local;
+	        if (this.lookahead.type === token_1.Token.Identifier) {
+	            imported = this.parseVariableIdentifier();
+	            local = imported;
+	            if (this.matchContextualKeyword('as')) {
+	                this.nextToken();
+	                local = this.parseVariableIdentifier();
+	            }
+	        }
+	        else {
+	            imported = this.parseIdentifierName();
+	            local = imported;
+	            if (this.matchContextualKeyword('as')) {
+	                this.nextToken();
+	                local = this.parseVariableIdentifier();
+	            }
+	            else {
+	                this.throwUnexpectedToken(this.nextToken());
+	            }
+	        }
+	        return this.finalize(node, new Node.ImportSpecifier(local, imported));
+	    };
+	    // {foo, bar as bas}
+	    Parser.prototype.parseNamedImports = function () {
+	        this.expect('{');
+	        var specifiers = [];
+	        while (!this.match('}')) {
+	            specifiers.push(this.parseImportSpecifier());
+	            if (!this.match('}')) {
+	                this.expect(',');
+	            }
+	        }
+	        this.expect('}');
+	        return specifiers;
+	    };
+	    // import <foo> ...;
+	    Parser.prototype.parseImportDefaultSpecifier = function () {
+	        var node = this.createNode();
+	        var local = this.parseIdentifierName();
+	        return this.finalize(node, new Node.ImportDefaultSpecifier(local));
+	    };
+	    // import <* as foo> ...;
+	    Parser.prototype.parseImportNamespaceSpecifier = function () {
+	        var node = this.createNode();
+	        this.expect('*');
+	        if (!this.matchContextualKeyword('as')) {
+	            this.throwError(messages_1.Messages.NoAsAfterImportNamespace);
+	        }
+	        this.nextToken();
+	        var local = this.parseIdentifierName();
+	        return this.finalize(node, new Node.ImportNamespaceSpecifier(local));
+	    };
+	    Parser.prototype.parseImportDeclaration = function () {
+	        if (this.context.inFunctionBody) {
+	            this.throwError(messages_1.Messages.IllegalImportDeclaration);
+	        }
+	        var node = this.createNode();
+	        this.expectKeyword('import');
+	        var src;
+	        var specifiers = [];
+	        if (this.lookahead.type === token_1.Token.StringLiteral) {
+	            // import 'foo';
+	            src = this.parseModuleSpecifier();
+	        }
+	        else {
+	            if (this.match('{')) {
+	                // import {bar}
+	                specifiers = specifiers.concat(this.parseNamedImports());
+	            }
+	            else if (this.match('*')) {
+	                // import * as foo
+	                specifiers.push(this.parseImportNamespaceSpecifier());
+	            }
+	            else if (this.isIdentifierName(this.lookahead) && !this.matchKeyword('default')) {
+	                // import foo
+	                specifiers.push(this.parseImportDefaultSpecifier());
+	                if (this.match(',')) {
+	                    this.nextToken();
+	                    if (this.match('*')) {
+	                        // import foo, * as foo
+	                        specifiers.push(this.parseImportNamespaceSpecifier());
+	                    }
+	                    else if (this.match('{')) {
+	                        // import foo, {bar}
+	                        specifiers = specifiers.concat(this.parseNamedImports());
+	                    }
+	                    else {
+	                        this.throwUnexpectedToken(this.lookahead);
+	                    }
+	                }
+	            }
+	            else {
+	                this.throwUnexpectedToken(this.nextToken());
+	            }
+	            if (!this.matchContextualKeyword('from')) {
+	                var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause;
+	                this.throwError(message, this.lookahead.value);
+	            }
+	            this.nextToken();
+	            src = this.parseModuleSpecifier();
+	        }
+	        this.consumeSemicolon();
+	        return this.finalize(node, new Node.ImportDeclaration(specifiers, src));
+	    };
+	    // ECMA-262 15.2.3 Exports
+	    Parser.prototype.parseExportSpecifier = function () {
+	        var node = this.createNode();
+	        var local = this.parseIdentifierName();
+	        var exported = local;
+	        if (this.matchContextualKeyword('as')) {
+	            this.nextToken();
+	            exported = this.parseIdentifierName();
+	        }
+	        return this.finalize(node, new Node.ExportSpecifier(local, exported));
+	    };
+	    Parser.prototype.parseExportDeclaration = function () {
+	        if (this.context.inFunctionBody) {
+	            this.throwError(messages_1.Messages.IllegalExportDeclaration);
+	        }
+	        var node = this.createNode();
+	        this.expectKeyword('export');
+	        var exportDeclaration;
+	        if (this.matchKeyword('default')) {
+	            // export default ...
+	            this.nextToken();
+	            if (this.matchKeyword('function')) {
+	                // export default function foo () {}
+	                // export default function () {}
+	                var declaration = this.parseFunctionDeclaration(true);
+	                exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
+	            }
+	            else if (this.matchKeyword('class')) {
+	                // export default class foo {}
+	                var declaration = this.parseClassDeclaration(true);
+	                exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
+	            }
+	            else {
+	                if (this.matchContextualKeyword('from')) {
+	                    this.throwError(messages_1.Messages.UnexpectedToken, this.lookahead.value);
+	                }
+	                // export default {};
+	                // export default [];
+	                // export default (1 + 2);
+	                var declaration = this.match('{') ? this.parseObjectInitializer() :
+	                    this.match('[') ? this.parseArrayInitializer() : this.parseAssignmentExpression();
+	                this.consumeSemicolon();
+	                exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
+	            }
+	        }
+	        else if (this.match('*')) {
+	            // export * from 'foo';
+	            this.nextToken();
+	            if (!this.matchContextualKeyword('from')) {
+	                var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause;
+	                this.throwError(message, this.lookahead.value);
+	            }
+	            this.nextToken();
+	            var src = this.parseModuleSpecifier();
+	            this.consumeSemicolon();
+	            exportDeclaration = this.finalize(node, new Node.ExportAllDeclaration(src));
+	        }
+	        else if (this.lookahead.type === token_1.Token.Keyword) {
+	            // export var f = 1;
+	            var declaration = void 0;
+	            switch (this.lookahead.value) {
+	                case 'let':
+	                case 'const':
+	                    declaration = this.parseLexicalDeclaration({ inFor: false });
+	                    break;
+	                case 'var':
+	                case 'class':
+	                case 'function':
+	                    declaration = this.parseStatementListItem();
+	                    break;
+	                default:
+	                    this.throwUnexpectedToken(this.lookahead);
+	            }
+	            exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null));
+	        }
+	        else {
+	            var specifiers = [];
+	            var source = null;
+	            var isExportFromIdentifier = false;
+	            this.expect('{');
+	            while (!this.match('}')) {
+	                isExportFromIdentifier = isExportFromIdentifier || this.matchKeyword('default');
+	                specifiers.push(this.parseExportSpecifier());
+	                if (!this.match('}')) {
+	                    this.expect(',');
+	                }
+	            }
+	            this.expect('}');
+	            if (this.matchContextualKeyword('from')) {
+	                // export {default} from 'foo';
+	                // export {foo} from 'foo';
+	                this.nextToken();
+	                source = this.parseModuleSpecifier();
+	                this.consumeSemicolon();
+	            }
+	            else if (isExportFromIdentifier) {
+	                // export {default}; // missing fromClause
+	                var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause;
+	                this.throwError(message, this.lookahead.value);
+	            }
+	            else {
+	                // export {foo};
+	                this.consumeSemicolon();
+	            }
+	            exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(null, specifiers, source));
+	        }
+	        return exportDeclaration;
+	    };
+	    return Parser;
+	}());
+	exports.Parser = Parser;
+
+
+/***/ },
+/* 4 */
+/***/ function(module, exports) {
+
+	// Ensure the condition is true, otherwise throw an error.
+	// This is only to have a better contract semantic, i.e. another safety net
+	// to catch a logic error. The condition shall be fulfilled in normal case.
+	// Do NOT use this to enforce a certain condition on any user input.
+	"use strict";
+	function assert(condition, message) {
+	    /* istanbul ignore if */
+	    if (!condition) {
+	        throw new Error('ASSERT: ' + message);
+	    }
+	}
+	exports.assert = assert;
+
+
+/***/ },
+/* 5 */
+/***/ function(module, exports) {
+
+	"use strict";
+	// Error messages should be identical to V8.
+	exports.Messages = {
+	    UnexpectedToken: 'Unexpected token %0',
+	    UnexpectedTokenIllegal: 'Unexpected token ILLEGAL',
+	    UnexpectedNumber: 'Unexpected number',
+	    UnexpectedString: 'Unexpected string',
+	    UnexpectedIdentifier: 'Unexpected identifier',
+	    UnexpectedReserved: 'Unexpected reserved word',
+	    UnexpectedTemplate: 'Unexpected quasi %0',
+	    UnexpectedEOS: 'Unexpected end of input',
+	    NewlineAfterThrow: 'Illegal newline after throw',
+	    InvalidRegExp: 'Invalid regular expression',
+	    UnterminatedRegExp: 'Invalid regular expression: missing /',
+	    InvalidLHSInAssignment: 'Invalid left-hand side in assignment',
+	    InvalidLHSInForIn: 'Invalid left-hand side in for-in',
+	    InvalidLHSInForLoop: 'Invalid left-hand side in for-loop',
+	    MultipleDefaultsInSwitch: 'More than one default clause in switch statement',
+	    NoCatchOrFinally: 'Missing catch or finally after try',
+	    UnknownLabel: 'Undefined label \'%0\'',
+	    Redeclaration: '%0 \'%1\' has already been declared',
+	    IllegalContinue: 'Illegal continue statement',
+	    IllegalBreak: 'Illegal break statement',
+	    IllegalReturn: 'Illegal return statement',
+	    StrictModeWith: 'Strict mode code may not include a with statement',
+	    StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode',
+	    StrictVarName: 'Variable name may not be eval or arguments in strict mode',
+	    StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode',
+	    StrictParamDupe: 'Strict mode function may not have duplicate parameter names',
+	    StrictFunctionName: 'Function name may not be eval or arguments in strict mode',
+	    StrictOctalLiteral: 'Octal literals are not allowed in strict mode.',
+	    StrictDelete: 'Delete of an unqualified identifier in strict mode.',
+	    StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode',
+	    StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode',
+	    StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode',
+	    StrictReservedWord: 'Use of future reserved word in strict mode',
+	    TemplateOctalLiteral: 'Octal literals are not allowed in template strings.',
+	    ParameterAfterRestParameter: 'Rest parameter must be last formal parameter',
+	    DefaultRestParameter: 'Unexpected token =',
+	    DuplicateProtoProperty: 'Duplicate __proto__ fields are not allowed in object literals',
+	    ConstructorSpecialMethod: 'Class constructor may not be an accessor',
+	    DuplicateConstructor: 'A class may only have one constructor',
+	    StaticPrototype: 'Classes may not have static property named prototype',
+	    MissingFromClause: 'Unexpected token',
+	    NoAsAfterImportNamespace: 'Unexpected token',
+	    InvalidModuleSpecifier: 'Unexpected token',
+	    IllegalImportDeclaration: 'Unexpected token',
+	    IllegalExportDeclaration: 'Unexpected token',
+	    DuplicateBinding: 'Duplicate binding %0',
+	    ForInOfLoopInitializer: '%0 loop variable declaration may not have an initializer'
+	};
+
+
+/***/ },
+/* 6 */
+/***/ function(module, exports) {
+
+	"use strict";
+	var ErrorHandler = (function () {
+	    function ErrorHandler() {
+	        this.errors = [];
+	        this.tolerant = false;
+	    }
+	    ;
+	    ErrorHandler.prototype.recordError = function (error) {
+	        this.errors.push(error);
+	    };
+	    ;
+	    ErrorHandler.prototype.tolerate = function (error) {
+	        if (this.tolerant) {
+	            this.recordError(error);
+	        }
+	        else {
+	            throw error;
+	        }
+	    };
+	    ;
+	    ErrorHandler.prototype.constructError = function (msg, column) {
+	        var error = new Error(msg);
+	        try {
+	            throw error;
+	        }
+	        catch (base) {
+	            /* istanbul ignore else */
+	            if (Object.create && Object.defineProperty) {
+	                error = Object.create(base);
+	                Object.defineProperty(error, 'column', { value: column });
+	            }
+	        }
+	        finally {
+	            return error;
+	        }
+	    };
+	    ;
+	    ErrorHandler.prototype.createError = function (index, line, col, description) {
+	        var msg = 'Line ' + line + ': ' + description;
+	        var error = this.constructError(msg, col);
+	        error.index = index;
+	        error.lineNumber = line;
+	        error.description = description;
+	        return error;
+	    };
+	    ;
+	    ErrorHandler.prototype.throwError = function (index, line, col, description) {
+	        throw this.createError(index, line, col, description);
+	    };
+	    ;
+	    ErrorHandler.prototype.tolerateError = function (index, line, col, description) {
+	        var error = this.createError(index, line, col, description);
+	        if (this.tolerant) {
+	            this.recordError(error);
+	        }
+	        else {
+	            throw error;
+	        }
+	    };
+	    ;
+	    return ErrorHandler;
+	}());
+	exports.ErrorHandler = ErrorHandler;
+
+
+/***/ },
+/* 7 */
+/***/ function(module, exports) {
+
+	"use strict";
+	(function (Token) {
+	    Token[Token["BooleanLiteral"] = 1] = "BooleanLiteral";
+	    Token[Token["EOF"] = 2] = "EOF";
+	    Token[Token["Identifier"] = 3] = "Identifier";
+	    Token[Token["Keyword"] = 4] = "Keyword";
+	    Token[Token["NullLiteral"] = 5] = "NullLiteral";
+	    Token[Token["NumericLiteral"] = 6] = "NumericLiteral";
+	    Token[Token["Punctuator"] = 7] = "Punctuator";
+	    Token[Token["StringLiteral"] = 8] = "StringLiteral";
+	    Token[Token["RegularExpression"] = 9] = "RegularExpression";
+	    Token[Token["Template"] = 10] = "Template";
+	})(exports.Token || (exports.Token = {}));
+	var Token = exports.Token;
+	;
+	exports.TokenName = {};
+	exports.TokenName[Token.BooleanLiteral] = 'Boolean';
+	exports.TokenName[Token.EOF] = '<end>';
+	exports.TokenName[Token.Identifier] = 'Identifier';
+	exports.TokenName[Token.Keyword] = 'Keyword';
+	exports.TokenName[Token.NullLiteral] = 'Null';
+	exports.TokenName[Token.NumericLiteral] = 'Numeric';
+	exports.TokenName[Token.Punctuator] = 'Punctuator';
+	exports.TokenName[Token.StringLiteral] = 'String';
+	exports.TokenName[Token.RegularExpression] = 'RegularExpression';
+	exports.TokenName[Token.Template] = 'Template';
+
+
+/***/ },
+/* 8 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+	var assert_1 = __webpack_require__(4);
+	var messages_1 = __webpack_require__(5);
+	var character_1 = __webpack_require__(9);
+	var token_1 = __webpack_require__(7);
+	function hexValue(ch) {
+	    return '0123456789abcdef'.indexOf(ch.toLowerCase());
+	}
+	function octalValue(ch) {
+	    return '01234567'.indexOf(ch);
+	}
+	var Scanner = (function () {
+	    function Scanner(code, handler) {
+	        this.source = code;
+	        this.errorHandler = handler;
+	        this.trackComment = false;
+	        this.length = code.length;
+	        this.index = 0;
+	        this.lineNumber = (code.length > 0) ? 1 : 0;
+	        this.lineStart = 0;
+	        this.curlyStack = [];
+	    }
+	    ;
+	    Scanner.prototype.eof = function () {
+	        return this.index >= this.length;
+	    };
+	    ;
+	    Scanner.prototype.throwUnexpectedToken = function (message) {
+	        if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; }
+	        this.errorHandler.throwError(this.index, this.lineNumber, this.index - this.lineStart + 1, message);
+	    };
+	    ;
+	    Scanner.prototype.tolerateUnexpectedToken = function () {
+	        this.errorHandler.tolerateError(this.index, this.lineNumber, this.index - this.lineStart + 1, messages_1.Messages.UnexpectedTokenIllegal);
+	    };
+	    ;
+	    // ECMA-262 11.4 Comments
+	    Scanner.prototype.skipSingleLineComment = function (offset) {
+	        var comments;
+	        var start, loc;
+	        if (this.trackComment) {
+	            comments = [];
+	            start = this.index - offset;
+	            loc = {
+	                start: {
+	                    line: this.lineNumber,
+	                    column: this.index - this.lineStart - offset
+	                },
+	                end: {}
+	            };
+	        }
+	        while (!this.eof()) {
+	            var ch = this.source.charCodeAt(this.index);
+	            ++this.index;
+	            if (character_1.Character.isLineTerminator(ch)) {
+	                if (this.trackComment) {
+	                    loc.end = {
+	                        line: this.lineNumber,
+	                        column: this.index - this.lineStart - 1
+	                    };
+	                    var entry = {
+	                        multiLine: false,
+	                        slice: [start + offset, this.index - 1],
+	                        range: [start, this.index - 1],
+	                        loc: loc
+	                    };
+	                    comments.push(entry);
+	                }
+	                if (ch === 13 && this.source.charCodeAt(this.index) === 10) {
+	                    ++this.index;
+	                }
+	                ++this.lineNumber;
+	                this.lineStart = this.index;
+	                return comments;
+	            }
+	        }
+	        if (this.trackComment) {
+	            loc.end = {
+	                line: this.lineNumber,
+	                column: this.index - this.lineStart
+	            };
+	            var entry = {
+	                multiLine: false,
+	                slice: [start + offset, this.index],
+	                range: [start, this.index],
+	                loc: loc
+	            };
+	            comments.push(entry);
+	        }
+	        return comments;
+	    };
+	    ;
+	    Scanner.prototype.skipMultiLineComment = function () {
+	        var comments;
+	        var start, loc;
+	        if (this.trackComment) {
+	            comments = [];
+	            start = this.index - 2;
+	            loc = {
+	                start: {
+	                    line: this.lineNumber,
+	                    column: this.index - this.lineStart - 2
+	                },
+	                end: {}
+	            };
+	        }
+	        while (!this.eof()) {
+	            var ch = this.source.charCodeAt(this.index);
+	            if (character_1.Character.isLineTerminator(ch)) {
+	                if (ch === 0x0D && this.source.charCodeAt(this.index + 1) === 0x0A) {
+	                    ++this.index;
+	                }
+	                ++this.lineNumber;
+	                ++this.index;
+	                this.lineStart = this.index;
+	            }
+	            else if (ch === 0x2A) {
+	                // Block comment ends with '*/'.
+	                if (this.source.charCodeAt(this.index + 1) === 0x2F) {
+	                    this.index += 2;
+	                    if (this.trackComment) {
+	                        loc.end = {
+	                            line: this.lineNumber,
+	                            column: this.index - this.lineStart
+	                        };
+	                        var entry = {
+	                            multiLine: true,
+	                            slice: [start + 2, this.index - 2],
+	                            range: [start, this.index],
+	                            loc: loc
+	                        };
+	                        comments.push(entry);
+	                    }
+	                    return comments;
+	                }
+	                ++this.index;
+	            }
+	            else {
+	                ++this.index;
+	            }
+	        }
+	        // Ran off the end of the file - the whole thing is a comment
+	        if (this.trackComment) {
+	            loc.end = {
+	                line: this.lineNumber,
+	                column: this.index - this.lineStart
+	            };
+	            var entry = {
+	                multiLine: true,
+	                slice: [start + 2, this.index],
+	                range: [start, this.index],
+	                loc: loc
+	            };
+	            comments.push(entry);
+	        }
+	        this.tolerateUnexpectedToken();
+	        return comments;
+	    };
+	    ;
+	    Scanner.prototype.scanComments = function () {
+	        var comments;
+	        if (this.trackComment) {
+	            comments = [];
+	        }
+	        var start = (this.index === 0);
+	        while (!this.eof()) {
+	            var ch = this.source.charCodeAt(this.index);
+	            if (character_1.Character.isWhiteSpace(ch)) {
+	                ++this.index;
+	            }
+	            else if (character_1.Character.isLineTerminator(ch)) {
+	                ++this.index;
+	                if (ch === 0x0D && this.source.charCodeAt(this.index) === 0x0A) {
+	                    ++this.index;
+	                }
+	                ++this.lineNumber;
+	                this.lineStart = this.index;
+	                start = true;
+	            }
+	            else if (ch === 0x2F) {
+	                ch = this.source.charCodeAt(this.index + 1);
+	                if (ch === 0x2F) {
+	                    this.index += 2;
+	                    var comment = this.skipSingleLineComment(2);
+	                    if (this.trackComment) {
+	                        comments = comments.concat(comment);
+	                    }
+	                    start = true;
+	                }
+	                else if (ch === 0x2A) {
+	                    this.index += 2;
+	                    var comment = this.skipMultiLineComment();
+	                    if (this.trackComment) {
+	                        comments = comments.concat(comment);
+	                    }
+	                }
+	                else {
+	                    break;
+	                }
+	            }
+	            else if (start && ch === 0x2D) {
+	                // U+003E is '>'
+	                if ((this.source.charCodeAt(this.index + 1) === 0x2D) && (this.source.charCodeAt(this.index + 2) === 0x3E)) {
+	                    // '-->' is a single-line comment
+	                    this.index += 3;
+	                    var comment = this.skipSingleLineComment(3);
+	                    if (this.trackComment) {
+	                        comments = comments.concat(comment);
+	                    }
+	                }
+	                else {
+	                    break;
+	                }
+	            }
+	            else if (ch === 0x3C) {
+	                if (this.source.slice(this.index + 1, this.index + 4) === '!--') {
+	                    this.index += 4; // `<!--`
+	                    var comment = this.skipSingleLineComment(4);
+	                    if (this.trackComment) {
+	                        comments = comments.concat(comment);
+	                    }
+	                }
+	                else {
+	                    break;
+	                }
+	            }
+	            else {
+	                break;
+	            }
+	        }
+	        return comments;
+	    };
+	    ;
+	    // ECMA-262 11.6.2.2 Future Reserved Words
+	    Scanner.prototype.isFutureReservedWord = function (id) {
+	        switch (id) {
+	            case 'enum':
+	            case 'export':
+	            case 'import':
+	            case 'super':
+	                return true;
+	            default:
+	                return false;
+	        }
+	    };
+	    ;
+	    Scanner.prototype.isStrictModeReservedWord = function (id) {
+	        switch (id) {
+	            case 'implements':
+	            case 'interface':
+	            case 'package':
+	            case 'private':
+	            case 'protected':
+	            case 'public':
+	            case 'static':
+	            case 'yield':
+	            case 'let':
+	                return true;
+	            default:
+	                return false;
+	        }
+	    };
+	    ;
+	    Scanner.prototype.isRestrictedWord = function (id) {
+	        return id === 'eval' || id === 'arguments';
+	    };
+	    ;
+	    // ECMA-262 11.6.2.1 Keywords
+	    Scanner.prototype.isKeyword = function (id) {
+	        switch (id.length) {
+	            case 2:
+	                return (id === 'if') || (id === 'in') || (id === 'do');
+	            case 3:
+	                return (id === 'var') || (id === 'for') || (id === 'new') ||
+	                    (id === 'try') || (id === 'let');
+	            case 4:
+	                return (id === 'this') || (id === 'else') || (id === 'case') ||
+	                    (id === 'void') || (id === 'with') || (id === 'enum');
+	            case 5:
+	                return (id === 'while') || (id === 'break') || (id === 'catch') ||
+	                    (id === 'throw') || (id === 'const') || (id === 'yield') ||
+	                    (id === 'class') || (id === 'super');
+	            case 6:
+	                return (id === 'return') || (id === 'typeof') || (id === 'delete') ||
+	                    (id === 'switch') || (id === 'export') || (id === 'import');
+	            case 7:
+	                return (id === 'default') || (id === 'finally') || (id === 'extends');
+	            case 8:
+	                return (id === 'function') || (id === 'continue') || (id === 'debugger');
+	            case 10:
+	                return (id === 'instanceof');
+	            default:
+	                return false;
+	        }
+	    };
+	    ;
+	    Scanner.prototype.codePointAt = function (i) {
+	        var cp = this.source.charCodeAt(i);
+	        if (cp >= 0xD800 && cp <= 0xDBFF) {
+	            var second = this.source.charCodeAt(i + 1);
+	            if (second >= 0xDC00 && second <= 0xDFFF) {
+	                var first = cp;
+	                cp = (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
+	            }
+	        }
+	        return cp;
+	    };
+	    ;
+	    Scanner.prototype.scanHexEscape = function (prefix) {
+	        var len = (prefix === 'u') ? 4 : 2;
+	        var code = 0;
+	        for (var i = 0; i < len; ++i) {
+	            if (!this.eof() && character_1.Character.isHexDigit(this.source.charCodeAt(this.index))) {
+	                code = code * 16 + hexValue(this.source[this.index++]);
+	            }
+	            else {
+	                return '';
+	            }
+	        }
+	        return String.fromCharCode(code);
+	    };
+	    ;
+	    Scanner.prototype.scanUnicodeCodePointEscape = function () {
+	        var ch = this.source[this.index];
+	        var code = 0;
+	        // At least, one hex digit is required.
+	        if (ch === '}') {
+	            this.throwUnexpectedToken();
+	        }
+	        while (!this.eof()) {
+	            ch = this.source[this.index++];
+	            if (!character_1.Character.isHexDigit(ch.charCodeAt(0))) {
+	                break;
+	            }
+	            code = code * 16 + hexValue(ch);
+	        }
+	        if (code > 0x10FFFF || ch !== '}') {
+	            this.throwUnexpectedToken();
+	        }
+	        return character_1.Character.fromCodePoint(code);
+	    };
+	    ;
+	    Scanner.prototype.getIdentifier = function () {
+	        var start = this.index++;
+	        while (!this.eof()) {
+	            var ch = this.source.charCodeAt(this.index);
+	            if (ch === 0x5C) {
+	                // Blackslash (U+005C) marks Unicode escape sequence.
+	                this.index = start;
+	                return this.getComplexIdentifier();
+	            }
+	            else if (ch >= 0xD800 && ch < 0xDFFF) {
+	                // Need to handle surrogate pairs.
+	                this.index = start;
+	                return this.getComplexIdentifier();
+	            }
+	            if (character_1.Character.isIdentifierPart(ch)) {
+	                ++this.index;
+	            }
+	            else {
+	                break;
+	            }
+	        }
+	        return this.source.slice(start, this.index);
+	    };
+	    ;
+	    Scanner.prototype.getComplexIdentifier = function () {
+	        var cp = this.codePointAt(this.index);
+	        var id = character_1.Character.fromCodePoint(cp);
+	        this.index += id.length;
+	        // '\u' (U+005C, U+0075) denotes an escaped character.
+	        var ch;
+	        if (cp === 0x5C) {
+	            if (this.source.charCodeAt(this.index) !== 0x75) {
+	                this.throwUnexpectedToken();
+	            }
+	            ++this.index;
+	            if (this.source[this.index] === '{') {
+	                ++this.index;
+	                ch = this.scanUnicodeCodePointEscape();
+	            }
+	            else {
+	                ch = this.scanHexEscape('u');
+	                cp = ch.charCodeAt(0);
+	                if (!ch || ch === '\\' || !character_1.Character.isIdentifierStart(cp)) {
+	                    this.throwUnexpectedToken();
+	                }
+	            }
+	            id = ch;
+	        }
+	        while (!this.eof()) {
+	            cp = this.codePointAt(this.index);
+	            if (!character_1.Character.isIdentifierPart(cp)) {
+	                break;
+	            }
+	            ch = character_1.Character.fromCodePoint(cp);
+	            id += ch;
+	            this.index += ch.length;
+	            // '\u' (U+005C, U+0075) denotes an escaped character.
+	            if (cp === 0x5C) {
+	                id = id.substr(0, id.length - 1);
+	                if (this.source.charCodeAt(this.index) !== 0x75) {
+	                    this.throwUnexpectedToken();
+	                }
+	                ++this.index;
+	                if (this.source[this.index] === '{') {
+	                    ++this.index;
+	                    ch = this.scanUnicodeCodePointEscape();
+	                }
+	                else {
+	                    ch = this.scanHexEscape('u');
+	                    cp = ch.charCodeAt(0);
+	                    if (!ch || ch === '\\' || !character_1.Character.isIdentifierPart(cp)) {
+	                        this.throwUnexpectedToken();
+	                    }
+	                }
+	                id += ch;
+	            }
+	        }
+	        return id;
+	    };
+	    ;
+	    Scanner.prototype.octalToDecimal = function (ch) {
+	        // \0 is not octal escape sequence
+	        var octal = (ch !== '0');
+	        var code = octalValue(ch);
+	        if (!this.eof() && character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) {
+	            octal = true;
+	            code = code * 8 + octalValue(this.source[this.index++]);
+	            // 3 digits are only allowed when string starts
+	            // with 0, 1, 2, 3
+	            if ('0123'.indexOf(ch) >= 0 && !this.eof() && character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) {
+	                code = code * 8 + octalValue(this.source[this.index++]);
+	            }
+	        }
+	        return {
+	            code: code,
+	            octal: octal
+	        };
+	    };
+	    ;
+	    // ECMA-262 11.6 Names and Keywords
+	    Scanner.prototype.scanIdentifier = function () {
+	        var type;
+	        var start = this.index;
+	        // Backslash (U+005C) starts an escaped character.
+	        var id = (this.source.charCodeAt(start) === 0x5C) ? this.getComplexIdentifier() : this.getIdentifier();
+	        // There is no keyword or literal with only one character.
+	        // Thus, it must be an identifier.
+	        if (id.length === 1) {
+	            type = token_1.Token.Identifier;
+	        }
+	        else if (this.isKeyword(id)) {
+	            type = token_1.Token.Keyword;
+	        }
+	        else if (id === 'null') {
+	            type = token_1.Token.NullLiteral;
+	        }
+	        else if (id === 'true' || id === 'false') {
+	            type = token_1.Token.BooleanLiteral;
+	        }
+	        else {
+	            type = token_1.Token.Identifier;
+	        }
+	        return {
+	            type: type,
+	            value: id,
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    ;
+	    // ECMA-262 11.7 Punctuators
+	    Scanner.prototype.scanPunctuator = function () {
+	        var token = {
+	            type: token_1.Token.Punctuator,
+	            value: '',
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: this.index,
+	            end: this.index
+	        };
+	        // Check for most common single-character punctuators.
+	        var str = this.source[this.index];
+	        switch (str) {
+	            case '(':
+	            case '{':
+	                if (str === '{') {
+	                    this.curlyStack.push('{');
+	                }
+	                ++this.index;
+	                break;
+	            case '.':
+	                ++this.index;
+	                if (this.source[this.index] === '.' && this.source[this.index + 1] === '.') {
+	                    // Spread operator: ...
+	                    this.index += 2;
+	                    str = '...';
+	                }
+	                break;
+	            case '}':
+	                ++this.index;
+	                this.curlyStack.pop();
+	                break;
+	            case ')':
+	            case ';':
+	            case ',':
+	            case '[':
+	            case ']':
+	            case ':':
+	            case '?':
+	            case '~':
+	                ++this.index;
+	                break;
+	            default:
+	                // 4-character punctuator.
+	                str = this.source.substr(this.index, 4);
+	                if (str === '>>>=') {
+	                    this.index += 4;
+	                }
+	                else {
+	                    // 3-character punctuators.
+	                    str = str.substr(0, 3);
+	                    if (str === '===' || str === '!==' || str === '>>>' ||
+	                        str === '<<=' || str === '>>=' || str === '**=') {
+	                        this.index += 3;
+	                    }
+	                    else {
+	                        // 2-character punctuators.
+	                        str = str.substr(0, 2);
+	                        if (str === '&&' || str === '||' || str === '==' || str === '!=' ||
+	                            str === '+=' || str === '-=' || str === '*=' || str === '/=' ||
+	                            str === '++' || str === '--' || str === '<<' || str === '>>' ||
+	                            str === '&=' || str === '|=' || str === '^=' || str === '%=' ||
+	                            str === '<=' || str === '>=' || str === '=>' || str === '**') {
+	                            this.index += 2;
+	                        }
+	                        else {
+	                            // 1-character punctuators.
+	                            str = this.source[this.index];
+	                            if ('<>=!+-*%&|^/'.indexOf(str) >= 0) {
+	                                ++this.index;
+	                            }
+	                        }
+	                    }
+	                }
+	        }
+	        if (this.index === token.start) {
+	            this.throwUnexpectedToken();
+	        }
+	        token.end = this.index;
+	        token.value = str;
+	        return token;
+	    };
+	    ;
+	    // ECMA-262 11.8.3 Numeric Literals
+	    Scanner.prototype.scanHexLiteral = function (start) {
+	        var number = '';
+	        while (!this.eof()) {
+	            if (!character_1.Character.isHexDigit(this.source.charCodeAt(this.index))) {
+	                break;
+	            }
+	            number += this.source[this.index++];
+	        }
+	        if (number.length === 0) {
+	            this.throwUnexpectedToken();
+	        }
+	        if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index))) {
+	            this.throwUnexpectedToken();
+	        }
+	        return {
+	            type: token_1.Token.NumericLiteral,
+	            value: parseInt('0x' + number, 16),
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    ;
+	    Scanner.prototype.scanBinaryLiteral = function (start) {
+	        var number = '';
+	        var ch;
+	        while (!this.eof()) {
+	            ch = this.source[this.index];
+	            if (ch !== '0' && ch !== '1') {
+	                break;
+	            }
+	            number += this.source[this.index++];
+	        }
+	        if (number.length === 0) {
+	            // only 0b or 0B
+	            this.throwUnexpectedToken();
+	        }
+	        if (!this.eof()) {
+	            ch = this.source.charCodeAt(this.index);
+	            /* istanbul ignore else */
+	            if (character_1.Character.isIdentifierStart(ch) || character_1.Character.isDecimalDigit(ch)) {
+	                this.throwUnexpectedToken();
+	            }
+	        }
+	        return {
+	            type: token_1.Token.NumericLiteral,
+	            value: parseInt(number, 2),
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    ;
+	    Scanner.prototype.scanOctalLiteral = function (prefix, start) {
+	        var number = '';
+	        var octal = false;
+	        if (character_1.Character.isOctalDigit(prefix.charCodeAt(0))) {
+	            octal = true;
+	            number = '0' + this.source[this.index++];
+	        }
+	        else {
+	            ++this.index;
+	        }
+	        while (!this.eof()) {
+	            if (!character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) {
+	                break;
+	            }
+	            number += this.source[this.index++];
+	        }
+	        if (!octal && number.length === 0) {
+	            // only 0o or 0O
+	            this.throwUnexpectedToken();
+	        }
+	        if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index)) || character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+	            this.throwUnexpectedToken();
+	        }
+	        return {
+	            type: token_1.Token.NumericLiteral,
+	            value: parseInt(number, 8),
+	            octal: octal,
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    ;
+	    Scanner.prototype.isImplicitOctalLiteral = function () {
+	        // Implicit octal, unless there is a non-octal digit.
+	        // (Annex B.1.1 on Numeric Literals)
+	        for (var i = this.index + 1; i < this.length; ++i) {
+	            var ch = this.source[i];
+	            if (ch === '8' || ch === '9') {
+	                return false;
+	            }
+	            if (!character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
+	                return true;
+	            }
+	        }
+	        return true;
+	    };
+	    ;
+	    Scanner.prototype.scanNumericLiteral = function () {
+	        var start = this.index;
+	        var ch = this.source[start];
+	        assert_1.assert(character_1.Character.isDecimalDigit(ch.charCodeAt(0)) || (ch === '.'), 'Numeric literal must start with a decimal digit or a decimal point');
+	        var number = '';
+	        if (ch !== '.') {
+	            number = this.source[this.index++];
+	            ch = this.source[this.index];
+	            // Hex number starts with '0x'.
+	            // Octal number starts with '0'.
+	            // Octal number in ES6 starts with '0o'.
+	            // Binary number in ES6 starts with '0b'.
+	            if (number === '0') {
+	                if (ch === 'x' || ch === 'X') {
+	                    ++this.index;
+	                    return this.scanHexLiteral(start);
+	                }
+	                if (ch === 'b' || ch === 'B') {
+	                    ++this.index;
+	                    return this.scanBinaryLiteral(start);
+	                }
+	                if (ch === 'o' || ch === 'O') {
+	                    return this.scanOctalLiteral(ch, start);
+	                }
+	                if (ch && character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
+	                    if (this.isImplicitOctalLiteral()) {
+	                        return this.scanOctalLiteral(ch, start);
+	                    }
+	                }
+	            }
+	            while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+	                number += this.source[this.index++];
+	            }
+	            ch = this.source[this.index];
+	        }
+	        if (ch === '.') {
+	            number += this.source[this.index++];
+	            while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+	                number += this.source[this.index++];
+	            }
+	            ch = this.source[this.index];
+	        }
+	        if (ch === 'e' || ch === 'E') {
+	            number += this.source[this.index++];
+	            ch = this.source[this.index];
+	            if (ch === '+' || ch === '-') {
+	                number += this.source[this.index++];
+	            }
+	            if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+	                while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+	                    number += this.source[this.index++];
+	                }
+	            }
+	            else {
+	                this.throwUnexpectedToken();
+	            }
+	        }
+	        if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index))) {
+	            this.throwUnexpectedToken();
+	        }
+	        return {
+	            type: token_1.Token.NumericLiteral,
+	            value: parseFloat(number),
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    ;
+	    // ECMA-262 11.8.4 String Literals
+	    Scanner.prototype.scanStringLiteral = function () {
+	        var start = this.index;
+	        var quote = this.source[start];
+	        assert_1.assert((quote === '\'' || quote === '"'), 'String literal must starts with a quote');
+	        ++this.index;
+	        var octal = false;
+	        var str = '';
+	        while (!this.eof()) {
+	            var ch = this.source[this.index++];
+	            if (ch === quote) {
+	                quote = '';
+	                break;
+	            }
+	            else if (ch === '\\') {
+	                ch = this.source[this.index++];
+	                if (!ch || !character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+	                    switch (ch) {
+	                        case 'u':
+	                        case 'x':
+	                            if (this.source[this.index] === '{') {
+	                                ++this.index;
+	                                str += this.scanUnicodeCodePointEscape();
+	                            }
+	                            else {
+	                                var unescaped = this.scanHexEscape(ch);
+	                                if (!unescaped) {
+	                                    this.throwUnexpectedToken();
+	                                }
+	                                str += unescaped;
+	                            }
+	                            break;
+	                        case 'n':
+	                            str += '\n';
+	                            break;
+	                        case 'r':
+	                            str += '\r';
+	                            break;
+	                        case 't':
+	                            str += '\t';
+	                            break;
+	                        case 'b':
+	                            str += '\b';
+	                            break;
+	                        case 'f':
+	                            str += '\f';
+	                            break;
+	                        case 'v':
+	                            str += '\x0B';
+	                            break;
+	                        case '8':
+	                        case '9':
+	                            str += ch;
+	                            this.tolerateUnexpectedToken();
+	                            break;
+	                        default:
+	                            if (ch && character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
+	                                var octToDec = this.octalToDecimal(ch);
+	                                octal = octToDec.octal || octal;
+	                                str += String.fromCharCode(octToDec.code);
+	                            }
+	                            else {
+	                                str += ch;
+	                            }
+	                            break;
+	                    }
+	                }
+	                else {
+	                    ++this.lineNumber;
+	                    if (ch === '\r' && this.source[this.index] === '\n') {
+	                        ++this.index;
+	                    }
+	                    this.lineStart = this.index;
+	                }
+	            }
+	            else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+	                break;
+	            }
+	            else {
+	                str += ch;
+	            }
+	        }
+	        if (quote !== '') {
+	            this.index = start;
+	            this.throwUnexpectedToken();
+	        }
+	        return {
+	            type: token_1.Token.StringLiteral,
+	            value: str,
+	            octal: octal,
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    ;
+	    // ECMA-262 11.8.6 Template Literal Lexical Components
+	    Scanner.prototype.scanTemplate = function () {
+	        var cooked = '';
+	        var terminated = false;
+	        var start = this.index;
+	        var head = (this.source[start] === '`');
+	        var tail = false;
+	        var rawOffset = 2;
+	        ++this.index;
+	        while (!this.eof()) {
+	            var ch = this.source[this.index++];
+	            if (ch === '`') {
+	                rawOffset = 1;
+	                tail = true;
+	                terminated = true;
+	                break;
+	            }
+	            else if (ch === '$') {
+	                if (this.source[this.index] === '{') {
+	                    this.curlyStack.push('${');
+	                    ++this.index;
+	                    terminated = true;
+	                    break;
+	                }
+	                cooked += ch;
+	            }
+	            else if (ch === '\\') {
+	                ch = this.source[this.index++];
+	                if (!character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+	                    switch (ch) {
+	                        case 'n':
+	                            cooked += '\n';
+	                            break;
+	                        case 'r':
+	                            cooked += '\r';
+	                            break;
+	                        case 't':
+	                            cooked += '\t';
+	                            break;
+	                        case 'u':
+	                        case 'x':
+	                            if (this.source[this.index] === '{') {
+	                                ++this.index;
+	                                cooked += this.scanUnicodeCodePointEscape();
+	                            }
+	                            else {
+	                                var restore = this.index;
+	                                var unescaped = this.scanHexEscape(ch);
+	                                if (unescaped) {
+	                                    cooked += unescaped;
+	                                }
+	                                else {
+	                                    this.index = restore;
+	                                    cooked += ch;
+	                                }
+	                            }
+	                            break;
+	                        case 'b':
+	                            cooked += '\b';
+	                            break;
+	                        case 'f':
+	                            cooked += '\f';
+	                            break;
+	                        case 'v':
+	                            cooked += '\v';
+	                            break;
+	                        default:
+	                            if (ch === '0') {
+	                                if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
+	                                    // Illegal: \01 \02 and so on
+	                                    this.throwUnexpectedToken(messages_1.Messages.TemplateOctalLiteral);
+	                                }
+	                                cooked += '\0';
+	                            }
+	                            else if (character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
+	                                // Illegal: \1 \2
+	                                this.throwUnexpectedToken(messages_1.Messages.TemplateOctalLiteral);
+	                            }
+	                            else {
+	                                cooked += ch;
+	                            }
+	                            break;
+	                    }
+	                }
+	                else {
+	                    ++this.lineNumber;
+	                    if (ch === '\r' && this.source[this.index] === '\n') {
+	                        ++this.index;
+	                    }
+	                    this.lineStart = this.index;
+	                }
+	            }
+	            else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+	                ++this.lineNumber;
+	                if (ch === '\r' && this.source[this.index] === '\n') {
+	                    ++this.index;
+	                }
+	                this.lineStart = this.index;
+	                cooked += '\n';
+	            }
+	            else {
+	                cooked += ch;
+	            }
+	        }
+	        if (!terminated) {
+	            this.throwUnexpectedToken();
+	        }
+	        if (!head) {
+	            this.curlyStack.pop();
+	        }
+	        return {
+	            type: token_1.Token.Template,
+	            value: {
+	                cooked: cooked,
+	                raw: this.source.slice(start + 1, this.index - rawOffset)
+	            },
+	            head: head,
+	            tail: tail,
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    ;
+	    // ECMA-262 11.8.5 Regular Expression Literals
+	    Scanner.prototype.testRegExp = function (pattern, flags) {
+	        // The BMP character to use as a replacement for astral symbols when
+	        // translating an ES6 "u"-flagged pattern to an ES5-compatible
+	        // approximation.
+	        // Note: replacing with '\uFFFF' enables false positives in unlikely
+	        // scenarios. For example, `[\u{1044f}-\u{10440}]` is an invalid
+	        // pattern that would not be detected by this substitution.
+	        var astralSubstitute = '\uFFFF';
+	        var tmp = pattern;
+	        var self = this;
+	        if (flags.indexOf('u') >= 0) {
+	            tmp = tmp
+	                .replace(/\\u\{([0-9a-fA-F]+)\}|\\u([a-fA-F0-9]{4})/g, function ($0, $1, $2) {
+	                var codePoint = parseInt($1 || $2, 16);
+	                if (codePoint > 0x10FFFF) {
+	                    self.throwUnexpectedToken(messages_1.Messages.InvalidRegExp);
+	                }
+	                if (codePoint <= 0xFFFF) {
+	                    return String.fromCharCode(codePoint);
+	                }
+	                return astralSubstitute;
+	            })
+	                .replace(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g, astralSubstitute);
+	        }
+	        // First, detect invalid regular expressions.
+	        try {
+	            RegExp(tmp);
+	        }
+	        catch (e) {
+	            this.throwUnexpectedToken(messages_1.Messages.InvalidRegExp);
+	        }
+	        // Return a regular expression object for this pattern-flag pair, or
+	        // `null` in case the current environment doesn't support the flags it
+	        // uses.
+	        try {
+	            return new RegExp(pattern, flags);
+	        }
+	        catch (exception) {
+	            /* istanbul ignore next */
+	            return null;
+	        }
+	    };
+	    ;
+	    Scanner.prototype.scanRegExpBody = function () {
+	        var ch = this.source[this.index];
+	        assert_1.assert(ch === '/', 'Regular expression literal must start with a slash');
+	        var str = this.source[this.index++];
+	        var classMarker = false;
+	        var terminated = false;
+	        while (!this.eof()) {
+	            ch = this.source[this.index++];
+	            str += ch;
+	            if (ch === '\\') {
+	                ch = this.source[this.index++];
+	                // ECMA-262 7.8.5
+	                if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+	                    this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp);
+	                }
+	                str += ch;
+	            }
+	            else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+	                this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp);
+	            }
+	            else if (classMarker) {
+	                if (ch === ']') {
+	                    classMarker = false;
+	                }
+	            }
+	            else {
+	                if (ch === '/') {
+	                    terminated = true;
+	                    break;
+	                }
+	                else if (ch === '[') {
+	                    classMarker = true;
+	                }
+	            }
+	        }
+	        if (!terminated) {
+	            this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp);
+	        }
+	        // Exclude leading and trailing slash.
+	        var body = str.substr(1, str.length - 2);
+	        return {
+	            value: body,
+	            literal: str
+	        };
+	    };
+	    ;
+	    Scanner.prototype.scanRegExpFlags = function () {
+	        var str = '';
+	        var flags = '';
+	        while (!this.eof()) {
+	            var ch = this.source[this.index];
+	            if (!character_1.Character.isIdentifierPart(ch.charCodeAt(0))) {
+	                break;
+	            }
+	            ++this.index;
+	            if (ch === '\\' && !this.eof()) {
+	                ch = this.source[this.index];
+	                if (ch === 'u') {
+	                    ++this.index;
+	                    var restore = this.index;
+	                    ch = this.scanHexEscape('u');
+	                    if (ch) {
+	                        flags += ch;
+	                        for (str += '\\u'; restore < this.index; ++restore) {
+	                            str += this.source[restore];
+	                        }
+	                    }
+	                    else {
+	                        this.index = restore;
+	                        flags += 'u';
+	                        str += '\\u';
+	                    }
+	                    this.tolerateUnexpectedToken();
+	                }
+	                else {
+	                    str += '\\';
+	                    this.tolerateUnexpectedToken();
+	                }
+	            }
+	            else {
+	                flags += ch;
+	                str += ch;
+	            }
+	        }
+	        return {
+	            value: flags,
+	            literal: str
+	        };
+	    };
+	    ;
+	    Scanner.prototype.scanRegExp = function () {
+	        var start = this.index;
+	        var body = this.scanRegExpBody();
+	        var flags = this.scanRegExpFlags();
+	        var value = this.testRegExp(body.value, flags.value);
+	        return {
+	            type: token_1.Token.RegularExpression,
+	            value: value,
+	            literal: body.literal + flags.literal,
+	            regex: {
+	                pattern: body.value,
+	                flags: flags.value
+	            },
+	            lineNumber: this.lineNumber,
+	            lineStart: this.lineStart,
+	            start: start,
+	            end: this.index
+	        };
+	    };
+	    ;
+	    Scanner.prototype.lex = function () {
+	        if (this.eof()) {
+	            return {
+	                type: token_1.Token.EOF,
+	                lineNumber: this.lineNumber,
+	                lineStart: this.lineStart,
+	                start: this.index,
+	                end: this.index
+	            };
+	        }
+	        var cp = this.source.charCodeAt(this.index);
+	        if (character_1.Character.isIdentifierStart(cp)) {
+	            return this.scanIdentifier();
+	        }
+	        // Very common: ( and ) and ;
+	        if (cp === 0x28 || cp === 0x29 || cp === 0x3B) {
+	            return this.scanPunctuator();
+	        }
+	        // String literal starts with single quote (U+0027) or double quote (U+0022).
+	        if (cp === 0x27 || cp === 0x22) {
+	            return this.scanStringLiteral();
+	        }
+	        // Dot (.) U+002E can also start a floating-point number, hence the need
+	        // to check the next character.
+	        if (cp === 0x2E) {
+	            if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index + 1))) {
+	                return this.scanNumericLiteral();
+	            }
+	            return this.scanPunctuator();
+	        }
+	        if (character_1.Character.isDecimalDigit(cp)) {
+	            return this.scanNumericLiteral();
+	        }
+	        // Template literals start with ` (U+0060) for template head
+	        // or } (U+007D) for template middle or template tail.
+	        if (cp === 0x60 || (cp === 0x7D && this.curlyStack[this.curlyStack.length - 1] === '${')) {
+	            return this.scanTemplate();
+	        }
+	        // Possible identifier start in a surrogate pair.
+	        if (cp >= 0xD800 && cp < 0xDFFF) {
+	            if (character_1.Character.isIdentifierStart(this.codePointAt(this.index))) {
+	                return this.scanIdentifier();
+	            }
+	        }
+	        return this.scanPunctuator();
+	    };
+	    ;
+	    return Scanner;
+	}());
+	exports.Scanner = Scanner;
+
+
+/***/ },
+/* 9 */
+/***/ function(module, exports) {
+
+	"use strict";
+	// See also tools/generate-unicode-regex.js.
+	var Regex = {
+	    // Unicode v8.0.0 NonAsciiIdentifierStart:
+	    NonAsciiIdentifierStart: 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+	    // Unicode v8.0.0 NonAsciiIdentifierPart:
+	    NonAsciiIdentifierPart: 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+	};
+	exports.Character = {
+	    fromCodePoint: function (cp) {
+	        return (cp < 0x10000) ? String.fromCharCode(cp) :
+	            String.fromCharCode(0xD800 + ((cp - 0x10000) >> 10)) +
+	                String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023));
+	    },
+	    // ECMA-262 11.2 White Space
+	    isWhiteSpace: function (cp) {
+	        return (cp === 0x20) || (cp === 0x09) || (cp === 0x0B) || (cp === 0x0C) || (cp === 0xA0) ||
+	            (cp >= 0x1680 && [0x1680, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(cp) >= 0);
+	    },
+	    // ECMA-262 11.3 Line Terminators
+	    isLineTerminator: function (cp) {
+	        return (cp === 0x0A) || (cp === 0x0D) || (cp === 0x2028) || (cp === 0x2029);
+	    },
+	    // ECMA-262 11.6 Identifier Names and Identifiers
+	    isIdentifierStart: function (cp) {
+	        return (cp === 0x24) || (cp === 0x5F) ||
+	            (cp >= 0x41 && cp <= 0x5A) ||
+	            (cp >= 0x61 && cp <= 0x7A) ||
+	            (cp === 0x5C) ||
+	            ((cp >= 0x80) && Regex.NonAsciiIdentifierStart.test(exports.Character.fromCodePoint(cp)));
+	    },
+	    isIdentifierPart: function (cp) {
+	        return (cp === 0x24) || (cp === 0x5F) ||
+	            (cp >= 0x41 && cp <= 0x5A) ||
+	            (cp >= 0x61 && cp <= 0x7A) ||
+	            (cp >= 0x30 && cp <= 0x39) ||
+	            (cp === 0x5C) ||
+	            ((cp >= 0x80) && Regex.NonAsciiIdentifierPart.test(exports.Character.fromCodePoint(cp)));
+	    },
+	    // ECMA-262 11.8.3 Numeric Literals
+	    isDecimalDigit: function (cp) {
+	        return (cp >= 0x30 && cp <= 0x39); // 0..9
+	    },
+	    isHexDigit: function (cp) {
+	        return (cp >= 0x30 && cp <= 0x39) ||
+	            (cp >= 0x41 && cp <= 0x46) ||
+	            (cp >= 0x61 && cp <= 0x66); // a..f
+	    },
+	    isOctalDigit: function (cp) {
+	        return (cp >= 0x30 && cp <= 0x37); // 0..7
+	    }
+	};
+
+
+/***/ },
+/* 10 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+	var syntax_1 = __webpack_require__(2);
+	var ArrayExpression = (function () {
+	    function ArrayExpression(elements) {
+	        this.type = syntax_1.Syntax.ArrayExpression;
+	        this.elements = elements;
+	    }
+	    return ArrayExpression;
+	}());
+	exports.ArrayExpression = ArrayExpression;
+	var ArrayPattern = (function () {
+	    function ArrayPattern(elements) {
+	        this.type = syntax_1.Syntax.ArrayPattern;
+	        this.elements = elements;
+	    }
+	    return ArrayPattern;
+	}());
+	exports.ArrayPattern = ArrayPattern;
+	var ArrowFunctionExpression = (function () {
+	    function ArrowFunctionExpression(params, body, expression) {
+	        this.type = syntax_1.Syntax.ArrowFunctionExpression;
+	        this.id = null;
+	        this.params = params;
+	        this.body = body;
+	        this.generator = false;
+	        this.expression = expression;
+	    }
+	    return ArrowFunctionExpression;
+	}());
+	exports.ArrowFunctionExpression = ArrowFunctionExpression;
+	var AssignmentExpression = (function () {
+	    function AssignmentExpression(operator, left, right) {
+	        this.type = syntax_1.Syntax.AssignmentExpression;
+	        this.operator = operator;
+	        this.left = left;
+	        this.right = right;
+	    }
+	    return AssignmentExpression;
+	}());
+	exports.AssignmentExpression = AssignmentExpression;
+	var AssignmentPattern = (function () {
+	    function AssignmentPattern(left, right) {
+	        this.type = syntax_1.Syntax.AssignmentPattern;
+	        this.left = left;
+	        this.right = right;
+	    }
+	    return AssignmentPattern;
+	}());
+	exports.AssignmentPattern = AssignmentPattern;
+	var BinaryExpression = (function () {
+	    function BinaryExpression(operator, left, right) {
+	        var logical = (operator === '||' || operator === '&&');
+	        this.type = logical ? syntax_1.Syntax.LogicalExpression : syntax_1.Syntax.BinaryExpression;
+	        this.operator = operator;
+	        this.left = left;
+	        this.right = right;
+	    }
+	    return BinaryExpression;
+	}());
+	exports.BinaryExpression = BinaryExpression;
+	var BlockStatement = (function () {
+	    function BlockStatement(body) {
+	        this.type = syntax_1.Syntax.BlockStatement;
+	        this.body = body;
+	    }
+	    return BlockStatement;
+	}());
+	exports.BlockStatement = BlockStatement;
+	var BreakStatement = (function () {
+	    function BreakStatement(label) {
+	        this.type = syntax_1.Syntax.BreakStatement;
+	        this.label = label;
+	    }
+	    return BreakStatement;
+	}());
+	exports.BreakStatement = BreakStatement;
+	var CallExpression = (function () {
+	    function CallExpression(callee, args) {
+	        this.type = syntax_1.Syntax.CallExpression;
+	        this.callee = callee;
+	        this.arguments = args;
+	    }
+	    return CallExpression;
+	}());
+	exports.CallExpression = CallExpression;
+	var CatchClause = (function () {
+	    function CatchClause(param, body) {
+	        this.type = syntax_1.Syntax.CatchClause;
+	        this.param = param;
+	        this.body = body;
+	    }
+	    return CatchClause;
+	}());
+	exports.CatchClause = CatchClause;
+	var ClassBody = (function () {
+	    function ClassBody(body) {
+	        this.type = syntax_1.Syntax.ClassBody;
+	        this.body = body;
+	    }
+	    return ClassBody;
+	}());
+	exports.ClassBody = ClassBody;
+	var ClassDeclaration = (function () {
+	    function ClassDeclaration(id, superClass, body) {
+	        this.type = syntax_1.Syntax.ClassDeclaration;
+	        this.id = id;
+	        this.superClass = superClass;
+	        this.body = body;
+	    }
+	    return ClassDeclaration;
+	}());
+	exports.ClassDeclaration = ClassDeclaration;
+	var ClassExpression = (function () {
+	    function ClassExpression(id, superClass, body) {
+	        this.type = syntax_1.Syntax.ClassExpression;
+	        this.id = id;
+	        this.superClass = superClass;
+	        this.body = body;
+	    }
+	    return ClassExpression;
+	}());
+	exports.ClassExpression = ClassExpression;
+	var ComputedMemberExpression = (function () {
+	    function ComputedMemberExpression(object, property) {
+	        this.type = syntax_1.Syntax.MemberExpression;
+	        this.computed = true;
+	        this.object = object;
+	        this.property = property;
+	    }
+	    return ComputedMemberExpression;
+	}());
+	exports.ComputedMemberExpression = ComputedMemberExpression;
+	var ConditionalExpression = (function () {
+	    function ConditionalExpression(test, consequent, alternate) {
+	        this.type = syntax_1.Syntax.ConditionalExpression;
+	        this.test = test;
+	        this.consequent = consequent;
+	        this.alternate = alternate;
+	    }
+	    return ConditionalExpression;
+	}());
+	exports.ConditionalExpression = ConditionalExpression;
+	var ContinueStatement = (function () {
+	    function ContinueStatement(label) {
+	        this.type = syntax_1.Syntax.ContinueStatement;
+	        this.label = label;
+	    }
+	    return ContinueStatement;
+	}());
+	exports.ContinueStatement = ContinueStatement;
+	var DebuggerStatement = (function () {
+	    function DebuggerStatement() {
+	        this.type = syntax_1.Syntax.DebuggerStatement;
+	    }
+	    return DebuggerStatement;
+	}());
+	exports.DebuggerStatement = DebuggerStatement;
+	var Directive = (function () {
+	    function Directive(expression, directive) {
+	        this.type = syntax_1.Syntax.ExpressionStatement;
+	        this.expression = expression;
+	        this.directive = directive;
+	    }
+	    return Directive;
+	}());
+	exports.Directive = Directive;
+	var DoWhileStatement = (function () {
+	    function DoWhileStatement(body, test) {
+	        this.type = syntax_1.Syntax.DoWhileStatement;
+	        this.body = body;
+	        this.test = test;
+	    }
+	    return DoWhileStatement;
+	}());
+	exports.DoWhileStatement = DoWhileStatement;
+	var EmptyStatement = (function () {
+	    function EmptyStatement() {
+	        this.type = syntax_1.Syntax.EmptyStatement;
+	    }
+	    return EmptyStatement;
+	}());
+	exports.EmptyStatement = EmptyStatement;
+	var ExportAllDeclaration = (function () {
+	    function ExportAllDeclaration(source) {
+	        this.type = syntax_1.Syntax.ExportAllDeclaration;
+	        this.source = source;
+	    }
+	    return ExportAllDeclaration;
+	}());
+	exports.ExportAllDeclaration = ExportAllDeclaration;
+	var ExportDefaultDeclaration = (function () {
+	    function ExportDefaultDeclaration(declaration) {
+	        this.type = syntax_1.Syntax.ExportDefaultDeclaration;
+	        this.declaration = declaration;
+	    }
+	    return ExportDefaultDeclaration;
+	}());
+	exports.ExportDefaultDeclaration = ExportDefaultDeclaration;
+	var ExportNamedDeclaration = (function () {
+	    function ExportNamedDeclaration(declaration, specifiers, source) {
+	        this.type = syntax_1.Syntax.ExportNamedDeclaration;
+	        this.declaration = declaration;
+	        this.specifiers = specifiers;
+	        this.source = source;
+	    }
+	    return ExportNamedDeclaration;
+	}());
+	exports.ExportNamedDeclaration = ExportNamedDeclaration;
+	var ExportSpecifier = (function () {
+	    function ExportSpecifier(local, exported) {
+	        this.type = syntax_1.Syntax.ExportSpecifier;
+	        this.exported = exported;
+	        this.local = local;
+	    }
+	    return ExportSpecifier;
+	}());
+	exports.ExportSpecifier = ExportSpecifier;
+	var ExpressionStatement = (function () {
+	    function ExpressionStatement(expression) {
+	        this.type = syntax_1.Syntax.ExpressionStatement;
+	        this.expression = expression;
+	    }
+	    return ExpressionStatement;
+	}());
+	exports.ExpressionStatement = ExpressionStatement;
+	var ForInStatement = (function () {
+	    function ForInStatement(left, right, body) {
+	        this.type = syntax_1.Syntax.ForInStatement;
+	        this.left = left;
+	        this.right = right;
+	        this.body = body;
+	        this.each = false;
+	    }
+	    return ForInStatement;
+	}());
+	exports.ForInStatement = ForInStatement;
+	var ForOfStatement = (function () {
+	    function ForOfStatement(left, right, body) {
+	        this.type = syntax_1.Syntax.ForOfStatement;
+	        this.left = left;
+	        this.right = right;
+	        this.body = body;
+	    }
+	    return ForOfStatement;
+	}());
+	exports.ForOfStatement = ForOfStatement;
+	var ForStatement = (function () {
+	    function ForStatement(init, test, update, body) {
+	        this.type = syntax_1.Syntax.ForStatement;
+	        this.init = init;
+	        this.test = test;
+	        this.update = update;
+	        this.body = body;
+	    }
+	    return ForStatement;
+	}());
+	exports.ForStatement = ForStatement;
+	var FunctionDeclaration = (function () {
+	    function FunctionDeclaration(id, params, body, generator) {
+	        this.type = syntax_1.Syntax.FunctionDeclaration;
+	        this.id = id;
+	        this.params = params;
+	        this.body = body;
+	        this.generator = generator;
+	        this.expression = false;
+	    }
+	    return FunctionDeclaration;
+	}());
+	exports.FunctionDeclaration = FunctionDeclaration;
+	var FunctionExpression = (function () {
+	    function FunctionExpression(id, params, body, generator) {
+	        this.type = syntax_1.Syntax.FunctionExpression;
+	        this.id = id;
+	        this.params = params;
+	        this.body = body;
+	        this.generator = generator;
+	        this.expression = false;
+	    }
+	    return FunctionExpression;
+	}());
+	exports.FunctionExpression = FunctionExpression;
+	var Identifier = (function () {
+	    function Identifier(name) {
+	        this.type = syntax_1.Syntax.Identifier;
+	        this.name = name;
+	    }
+	    return Identifier;
+	}());
+	exports.Identifier = Identifier;
+	var IfStatement = (function () {
+	    function IfStatement(test, consequent, alternate) {
+	        this.type = syntax_1.Syntax.IfStatement;
+	        this.test = test;
+	        this.consequent = consequent;
+	        this.alternate = alternate;
+	    }
+	    return IfStatement;
+	}());
+	exports.IfStatement = IfStatement;
+	var ImportDeclaration = (function () {
+	    function ImportDeclaration(specifiers, source) {
+	        this.type = syntax_1.Syntax.ImportDeclaration;
+	        this.specifiers = specifiers;
+	        this.source = source;
+	    }
+	    return ImportDeclaration;
+	}());
+	exports.ImportDeclaration = ImportDeclaration;
+	var ImportDefaultSpecifier = (function () {
+	    function ImportDefaultSpecifier(local) {
+	        this.type = syntax_1.Syntax.ImportDefaultSpecifier;
+	        this.local = local;
+	    }
+	    return ImportDefaultSpecifier;
+	}());
+	exports.ImportDefaultSpecifier = ImportDefaultSpecifier;
+	var ImportNamespaceSpecifier = (function () {
+	    function ImportNamespaceSpecifier(local) {
+	        this.type = syntax_1.Syntax.ImportNamespaceSpecifier;
+	        this.local = local;
+	    }
+	    return ImportNamespaceSpecifier;
+	}());
+	exports.ImportNamespaceSpecifier = ImportNamespaceSpecifier;
+	var ImportSpecifier = (function () {
+	    function ImportSpecifier(local, imported) {
+	        this.type = syntax_1.Syntax.ImportSpecifier;
+	        this.local = local;
+	        this.imported = imported;
+	    }
+	    return ImportSpecifier;
+	}());
+	exports.ImportSpecifier = ImportSpecifier;
+	var LabeledStatement = (function () {
+	    function LabeledStatement(label, body) {
+	        this.type = syntax_1.Syntax.LabeledStatement;
+	        this.label = label;
+	        this.body = body;
+	    }
+	    return LabeledStatement;
+	}());
+	exports.LabeledStatement = LabeledStatement;
+	var Literal = (function () {
+	    function Literal(value, raw) {
+	        this.type = syntax_1.Syntax.Literal;
+	        this.value = value;
+	        this.raw = raw;
+	    }
+	    return Literal;
+	}());
+	exports.Literal = Literal;
+	var MetaProperty = (function () {
+	    function MetaProperty(meta, property) {
+	        this.type = syntax_1.Syntax.MetaProperty;
+	        this.meta = meta;
+	        this.property = property;
+	    }
+	    return MetaProperty;
+	}());
+	exports.MetaProperty = MetaProperty;
+	var MethodDefinition = (function () {
+	    function MethodDefinition(key, computed, value, kind, isStatic) {
+	        this.type = syntax_1.Syntax.MethodDefinition;
+	        this.key = key;
+	        this.computed = computed;
+	        this.value = value;
+	        this.kind = kind;
+	        this.static = isStatic;
+	    }
+	    return MethodDefinition;
+	}());
+	exports.MethodDefinition = MethodDefinition;
+	var NewExpression = (function () {
+	    function NewExpression(callee, args) {
+	        this.type = syntax_1.Syntax.NewExpression;
+	        this.callee = callee;
+	        this.arguments = args;
+	    }
+	    return NewExpression;
+	}());
+	exports.NewExpression = NewExpression;
+	var ObjectExpression = (function () {
+	    function ObjectExpression(properties) {
+	        this.type = syntax_1.Syntax.ObjectExpression;
+	        this.properties = properties;
+	    }
+	    return ObjectExpression;
+	}());
+	exports.ObjectExpression = ObjectExpression;
+	var ObjectPattern = (function () {
+	    function ObjectPattern(properties) {
+	        this.type = syntax_1.Syntax.ObjectPattern;
+	        this.properties = properties;
+	    }
+	    return ObjectPattern;
+	}());
+	exports.ObjectPattern = ObjectPattern;
+	var Program = (function () {
+	    function Program(body, sourceType) {
+	        this.type = syntax_1.Syntax.Program;
+	        this.body = body;
+	        this.sourceType = sourceType;
+	    }
+	    return Program;
+	}());
+	exports.Program = Program;
+	var Property = (function () {
+	    function Property(kind, key, computed, value, method, shorthand) {
+	        this.type = syntax_1.Syntax.Property;
+	        this.key = key;
+	        this.computed = computed;
+	        this.value = value;
+	        this.kind = kind;
+	        this.method = method;
+	        this.shorthand = shorthand;
+	    }
+	    return Property;
+	}());
+	exports.Property = Property;
+	var RegexLiteral = (function () {
+	    function RegexLiteral(value, raw, regex) {
+	        this.type = syntax_1.Syntax.Literal;
+	        this.value = value;
+	        this.raw = raw;
+	        this.regex = regex;
+	    }
+	    return RegexLiteral;
+	}());
+	exports.RegexLiteral = RegexLiteral;
+	var RestElement = (function () {
+	    function RestElement(argument) {
+	        this.type = syntax_1.Syntax.RestElement;
+	        this.argument = argument;
+	    }
+	    return RestElement;
+	}());
+	exports.RestElement = RestElement;
+	var ReturnStatement = (function () {
+	    function ReturnStatement(argument) {
+	        this.type = syntax_1.Syntax.ReturnStatement;
+	        this.argument = argument;
+	    }
+	    return ReturnStatement;
+	}());
+	exports.ReturnStatement = ReturnStatement;
+	var SequenceExpression = (function () {
+	    function SequenceExpression(expressions) {
+	        this.type = syntax_1.Syntax.SequenceExpression;
+	        this.expressions = expressions;
+	    }
+	    return SequenceExpression;
+	}());
+	exports.SequenceExpression = SequenceExpression;
+	var SpreadElement = (function () {
+	    function SpreadElement(argument) {
+	        this.type = syntax_1.Syntax.SpreadElement;
+	        this.argument = argument;
+	    }
+	    return SpreadElement;
+	}());
+	exports.SpreadElement = SpreadElement;
+	var StaticMemberExpression = (function () {
+	    function StaticMemberExpression(object, property) {
+	        this.type = syntax_1.Syntax.MemberExpression;
+	        this.computed = false;
+	        this.object = object;
+	        this.property = property;
+	    }
+	    return StaticMemberExpression;
+	}());
+	exports.StaticMemberExpression = StaticMemberExpression;
+	var Super = (function () {
+	    function Super() {
+	        this.type = syntax_1.Syntax.Super;
+	    }
+	    return Super;
+	}());
+	exports.Super = Super;
+	var SwitchCase = (function () {
+	    function SwitchCase(test, consequent) {
+	        this.type = syntax_1.Syntax.SwitchCase;
+	        this.test = test;
+	        this.consequent = consequent;
+	    }
+	    return SwitchCase;
+	}());
+	exports.SwitchCase = SwitchCase;
+	var SwitchStatement = (function () {
+	    function SwitchStatement(discriminant, cases) {
+	        this.type = syntax_1.Syntax.SwitchStatement;
+	        this.discriminant = discriminant;
+	        this.cases = cases;
+	    }
+	    return SwitchStatement;
+	}());
+	exports.SwitchStatement = SwitchStatement;
+	var TaggedTemplateExpression = (function () {
+	    function TaggedTemplateExpression(tag, quasi) {
+	        this.type = syntax_1.Syntax.TaggedTemplateExpression;
+	        this.tag = tag;
+	        this.quasi = quasi;
+	    }
+	    return TaggedTemplateExpression;
+	}());
+	exports.TaggedTemplateExpression = TaggedTemplateExpression;
+	var TemplateElement = (function () {
+	    function TemplateElement(value, tail) {
+	        this.type = syntax_1.Syntax.TemplateElement;
+	        this.value = value;
+	        this.tail = tail;
+	    }
+	    return TemplateElement;
+	}());
+	exports.TemplateElement = TemplateElement;
+	var TemplateLiteral = (function () {
+	    function TemplateLiteral(quasis, expressions) {
+	        this.type = syntax_1.Syntax.TemplateLiteral;
+	        this.quasis = quasis;
+	        this.expressions = expressions;
+	    }
+	    return TemplateLiteral;
+	}());
+	exports.TemplateLiteral = TemplateLiteral;
+	var ThisExpression = (function () {
+	    function ThisExpression() {
+	        this.type = syntax_1.Syntax.ThisExpression;
+	    }
+	    return ThisExpression;
+	}());
+	exports.ThisExpression = ThisExpression;
+	var ThrowStatement = (function () {
+	    function ThrowStatement(argument) {
+	        this.type = syntax_1.Syntax.ThrowStatement;
+	        this.argument = argument;
+	    }
+	    return ThrowStatement;
+	}());
+	exports.ThrowStatement = ThrowStatement;
+	var TryStatement = (function () {
+	    function TryStatement(block, handler, finalizer) {
+	        this.type = syntax_1.Syntax.TryStatement;
+	        this.block = block;
+	        this.handler = handler;
+	        this.finalizer = finalizer;
+	    }
+	    return TryStatement;
+	}());
+	exports.TryStatement = TryStatement;
+	var UnaryExpression = (function () {
+	    function UnaryExpression(operator, argument) {
+	        this.type = syntax_1.Syntax.UnaryExpression;
+	        this.operator = operator;
+	        this.argument = argument;
+	        this.prefix = true;
+	    }
+	    return UnaryExpression;
+	}());
+	exports.UnaryExpression = UnaryExpression;
+	var UpdateExpression = (function () {
+	    function UpdateExpression(operator, argument, prefix) {
+	        this.type = syntax_1.Syntax.UpdateExpression;
+	        this.operator = operator;
+	        this.argument = argument;
+	        this.prefix = prefix;
+	    }
+	    return UpdateExpression;
+	}());
+	exports.UpdateExpression = UpdateExpression;
+	var VariableDeclaration = (function () {
+	    function VariableDeclaration(declarations, kind) {
+	        this.type = syntax_1.Syntax.VariableDeclaration;
+	        this.declarations = declarations;
+	        this.kind = kind;
+	    }
+	    return VariableDeclaration;
+	}());
+	exports.VariableDeclaration = VariableDeclaration;
+	var VariableDeclarator = (function () {
+	    function VariableDeclarator(id, init) {
+	        this.type = syntax_1.Syntax.VariableDeclarator;
+	        this.id = id;
+	        this.init = init;
+	    }
+	    return VariableDeclarator;
+	}());
+	exports.VariableDeclarator = VariableDeclarator;
+	var WhileStatement = (function () {
+	    function WhileStatement(test, body) {
+	        this.type = syntax_1.Syntax.WhileStatement;
+	        this.test = test;
+	        this.body = body;
+	    }
+	    return WhileStatement;
+	}());
+	exports.WhileStatement = WhileStatement;
+	var WithStatement = (function () {
+	    function WithStatement(object, body) {
+	        this.type = syntax_1.Syntax.WithStatement;
+	        this.object = object;
+	        this.body = body;
+	    }
+	    return WithStatement;
+	}());
+	exports.WithStatement = WithStatement;
+	var YieldExpression = (function () {
+	    function YieldExpression(argument, delegate) {
+	        this.type = syntax_1.Syntax.YieldExpression;
+	        this.argument = argument;
+	        this.delegate = delegate;
+	    }
+	    return YieldExpression;
+	}());
+	exports.YieldExpression = YieldExpression;
+
+
+/***/ },
+/* 11 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+/* istanbul ignore next */
+	var __extends = (this && this.__extends) || function (d, b) {
+	    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+	    function __() { this.constructor = d; }
+	    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+	};
+	var character_1 = __webpack_require__(9);
+	var token_1 = __webpack_require__(7);
+	var parser_1 = __webpack_require__(3);
+	var xhtml_entities_1 = __webpack_require__(12);
+	var jsx_syntax_1 = __webpack_require__(13);
+	var Node = __webpack_require__(10);
+	var JSXNode = __webpack_require__(14);
+	var JSXToken;
+	(function (JSXToken) {
+	    JSXToken[JSXToken["Identifier"] = 100] = "Identifier";
+	    JSXToken[JSXToken["Text"] = 101] = "Text";
+	})(JSXToken || (JSXToken = {}));
+	token_1.TokenName[JSXToken.Identifier] = 'JSXIdentifier';
+	token_1.TokenName[JSXToken.Text] = 'JSXText';
+	// Fully qualified element name, e.g. <svg:path> returns "svg:path"
+	function getQualifiedElementName(elementName) {
+	    var qualifiedName;
+	    switch (elementName.type) {
+	        case jsx_syntax_1.JSXSyntax.JSXIdentifier:
+	            var id = (elementName);
+	            qualifiedName = id.name;
+	            break;
+	        case jsx_syntax_1.JSXSyntax.JSXNamespacedName:
+	            var ns = (elementName);
+	            qualifiedName = getQualifiedElementName(ns.namespace) + ':' +
+	                getQualifiedElementName(ns.name);
+	            break;
+	        case jsx_syntax_1.JSXSyntax.JSXMemberExpression:
+	            var expr = (elementName);
+	            qualifiedName = getQualifiedElementName(expr.object) + '.' +
+	                getQualifiedElementName(expr.property);
+	            break;
+	    }
+	    return qualifiedName;
+	}
+	var JSXParser = (function (_super) {
+	    __extends(JSXParser, _super);
+	    function JSXParser(code, options, delegate) {
+	        _super.call(this, code, options, delegate);
+	    }
+	    JSXParser.prototype.parsePrimaryExpression = function () {
+	        return this.match('<') ? this.parseJSXRoot() : _super.prototype.parsePrimaryExpression.call(this);
+	    };
+	    JSXParser.prototype.startJSX = function () {
+	        // Unwind the scanner before the lookahead token.
+	        this.scanner.index = this.startMarker.index;
+	        this.scanner.lineNumber = this.startMarker.lineNumber;
+	        this.scanner.lineStart = this.startMarker.lineStart;
+	    };
+	    JSXParser.prototype.finishJSX = function () {
+	        // Prime the next lookahead.
+	        this.nextToken();
+	    };
+	    JSXParser.prototype.reenterJSX = function () {
+	        this.startJSX();
+	        this.expectJSX('}');
+	        // Pop the closing '}' added from the lookahead.
+	        if (this.config.tokens) {
+	            this.tokens.pop();
+	        }
+	    };
+	    JSXParser.prototype.createJSXNode = function () {
+	        this.collectComments();
+	        return {
+	            index: this.scanner.index,
+	            line: this.scanner.lineNumber,
+	            column: this.scanner.index - this.scanner.lineStart
+	        };
+	    };
+	    JSXParser.prototype.createJSXChildNode = function () {
+	        return {
+	            index: this.scanner.index,
+	            line: this.scanner.lineNumber,
+	            column: this.scanner.index - this.scanner.lineStart
+	        };
+	    };
+	    JSXParser.prototype.scanXHTMLEntity = function (quote) {
+	        var result = '&';
+	        var valid = true;
+	        var terminated = false;
+	        var numeric = false;
+	        var hex = false;
+	        while (!this.scanner.eof() && valid && !terminated) {
+	            var ch = this.scanner.source[this.scanner.index];
+	            if (ch === quote) {
+	                break;
+	            }
+	            terminated = (ch === ';');
+	            result += ch;
+	            ++this.scanner.index;
+	            if (!terminated) {
+	                switch (result.length) {
+	                    case 2:
+	                        // e.g. '&#123;'
+	                        numeric = (ch === '#');
+	                        break;
+	                    case 3:
+	                        if (numeric) {
+	                            // e.g. '&#x41;'
+	                            hex = (ch === 'x');
+	                            valid = hex || character_1.Character.isDecimalDigit(ch.charCodeAt(0));
+	                            numeric = numeric && !hex;
+	                        }
+	                        break;
+	                    default:
+	                        valid = valid && !(numeric && !character_1.Character.isDecimalDigit(ch.charCodeAt(0)));
+	                        valid = valid && !(hex && !character_1.Character.isHexDigit(ch.charCodeAt(0)));
+	                        break;
+	                }
+	            }
+	        }
+	        if (valid && terminated && result.length > 2) {
+	            // e.g. '&#x41;' becomes just '#x41'
+	            var str = result.substr(1, result.length - 2);
+	            if (numeric && str.length > 1) {
+	                result = String.fromCharCode(parseInt(str.substr(1), 10));
+	            }
+	            else if (hex && str.length > 2) {
+	                result = String.fromCharCode(parseInt('0' + str.substr(1), 16));
+	            }
+	            else if (!numeric && !hex && xhtml_entities_1.XHTMLEntities[str]) {
+	                result = xhtml_entities_1.XHTMLEntities[str];
+	            }
+	        }
+	        return result;
+	    };
+	    // Scan the next JSX token. This replaces Scanner#lex when in JSX mode.
+	    JSXParser.prototype.lexJSX = function () {
+	        var cp = this.scanner.source.charCodeAt(this.scanner.index);
+	        // < > / : = { }
+	        if (cp === 60 || cp === 62 || cp === 47 || cp === 58 || cp === 61 || cp === 123 || cp === 125) {
+	            var value = this.scanner.source[this.scanner.index++];
+	            return {
+	                type: token_1.Token.Punctuator,
+	                value: value,
+	                lineNumber: this.scanner.lineNumber,
+	                lineStart: this.scanner.lineStart,
+	                start: this.scanner.index - 1,
+	                end: this.scanner.index
+	            };
+	        }
+	        // " '
+	        if (cp === 34 || cp === 39) {
+	            var start = this.scanner.index;
+	            var quote = this.scanner.source[this.scanner.index++];
+	            var str = '';
+	            while (!this.scanner.eof()) {
+	                var ch = this.scanner.source[this.scanner.index++];
+	                if (ch === quote) {
+	                    break;
+	                }
+	                else if (ch === '&') {
+	                    str += this.scanXHTMLEntity(quote);
+	                }
+	                else {
+	                    str += ch;
+	                }
+	            }
+	            return {
+	                type: token_1.Token.StringLiteral,
+	                value: str,
+	                lineNumber: this.scanner.lineNumber,
+	                lineStart: this.scanner.lineStart,
+	                start: start,
+	                end: this.scanner.index
+	            };
+	        }
+	        // ... or .
+	        if (cp === 46) {
+	            var n1 = this.scanner.source.charCodeAt(this.scanner.index + 1);
+	            var n2 = this.scanner.source.charCodeAt(this.scanner.index + 2);
+	            var value = (n1 === 46 && n2 === 46) ? '...' : '.';
+	            var start = this.scanner.index;
+	            this.scanner.index += value.length;
+	            return {
+	                type: token_1.Token.Punctuator,
+	                value: value,
+	                lineNumber: this.scanner.lineNumber,
+	                lineStart: this.scanner.lineStart,
+	                start: start,
+	                end: this.scanner.index
+	            };
+	        }
+	        // `
+	        if (cp === 96) {
+	            // Only placeholder, since it will be rescanned as a real assignment expression.
+	            return {
+	                type: token_1.Token.Template,
+	                lineNumber: this.scanner.lineNumber,
+	                lineStart: this.scanner.lineStart,
+	                start: this.scanner.index,
+	                end: this.scanner.index
+	            };
+	        }
+	        // Identifer can not contain backslash (char code 92).
+	        if (character_1.Character.isIdentifierStart(cp) && (cp !== 92)) {
+	            var start = this.scanner.index;
+	            ++this.scanner.index;
+	            while (!this.scanner.eof()) {
+	                var ch = this.scanner.source.charCodeAt(this.scanner.index);
+	                if (character_1.Character.isIdentifierPart(ch) && (ch !== 92)) {
+	                    ++this.scanner.index;
+	                }
+	                else if (ch === 45) {
+	                    // Hyphen (char code 45) can be part of an identifier.
+	                    ++this.scanner.index;
+	                }
+	                else {
+	                    break;
+	                }
+	            }
+	            var id = this.scanner.source.slice(start, this.scanner.index);
+	            return {
+	                type: JSXToken.Identifier,
+	                value: id,
+	                lineNumber: this.scanner.lineNumber,
+	                lineStart: this.scanner.lineStart,
+	                start: start,
+	                end: this.scanner.index
+	            };
+	        }
+	        this.scanner.throwUnexpectedToken();
+	    };
+	    JSXParser.prototype.nextJSXToken = function () {
+	        this.collectComments();
+	        this.startMarker.index = this.scanner.index;
+	        this.startMarker.lineNumber = this.scanner.lineNumber;
+	        this.startMarker.lineStart = this.scanner.lineStart;
+	        var token = this.lexJSX();
+	        this.lastMarker.index = this.scanner.index;
+	        this.lastMarker.lineNumber = this.scanner.lineNumber;
+	        this.lastMarker.lineStart = this.scanner.lineStart;
+	        if (this.config.tokens) {
+	            this.tokens.push(this.convertToken(token));
+	        }
+	        return token;
+	    };
+	    JSXParser.prototype.nextJSXText = function () {
+	        this.startMarker.index = this.scanner.index;
+	        this.startMarker.lineNumber = this.scanner.lineNumber;
+	        this.startMarker.lineStart = this.scanner.lineStart;
+	        var start = this.scanner.index;
+	        var text = '';
+	        while (!this.scanner.eof()) {
+	            var ch = this.scanner.source[this.scanner.index];
+	            if (ch === '{' || ch === '<') {
+	                break;
+	            }
+	            ++this.scanner.index;
+	            text += ch;
+	            if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
+	                ++this.scanner.lineNumber;
+	                if (ch === '\r' && this.scanner.source[this.scanner.index] === '\n') {
+	                    ++this.scanner.index;
+	                }
+	                this.scanner.lineStart = this.scanner.index;
+	            }
+	        }
+	        this.lastMarker.index = this.scanner.index;
+	        this.lastMarker.lineNumber = this.scanner.lineNumber;
+	        this.lastMarker.lineStart = this.scanner.lineStart;
+	        var token = {
+	            type: JSXToken.Text,
+	            value: text,
+	            lineNumber: this.scanner.lineNumber,
+	            lineStart: this.scanner.lineStart,
+	            start: start,
+	            end: this.scanner.index
+	        };
+	        if ((text.length > 0) && this.config.tokens) {
+	            this.tokens.push(this.convertToken(token));
+	        }
+	        return token;
+	    };
+	    JSXParser.prototype.peekJSXToken = function () {
+	        var previousIndex = this.scanner.index;
+	        var previousLineNumber = this.scanner.lineNumber;
+	        var previousLineStart = this.scanner.lineStart;
+	        this.scanner.scanComments();
+	        var next = this.lexJSX();
+	        this.scanner.index = previousIndex;
+	        this.scanner.lineNumber = previousLineNumber;
+	        this.scanner.lineStart = previousLineStart;
+	        return next;
+	    };
+	    // Expect the next JSX token to match the specified punctuator.
+	    // If not, an exception will be thrown.
+	    JSXParser.prototype.expectJSX = function (value) {
+	        var token = this.nextJSXToken();
+	        if (token.type !== token_1.Token.Punctuator || token.value !== value) {
+	            this.throwUnexpectedToken(token);
+	        }
+	    };
+	    // Return true if the next JSX token matches the specified punctuator.
+	    JSXParser.prototype.matchJSX = function (value) {
+	        var next = this.peekJSXToken();
+	        return next.type === token_1.Token.Punctuator && next.value === value;
+	    };
+	    JSXParser.prototype.parseJSXIdentifier = function () {
+	        var node = this.createJSXNode();
+	        var token = this.nextJSXToken();
+	        if (token.type !== JSXToken.Identifier) {
+	            this.throwUnexpectedToken(token);
+	        }
+	        return this.finalize(node, new JSXNode.JSXIdentifier(token.value));
+	    };
+	    JSXParser.prototype.parseJSXElementName = function () {
+	        var node = this.createJSXNode();
+	        var elementName = this.parseJSXIdentifier();
+	        if (this.matchJSX(':')) {
+	            var namespace = elementName;
+	            this.expectJSX(':');
+	            var name_1 = this.parseJSXIdentifier();
+	            elementName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_1));
+	        }
+	        else if (this.matchJSX('.')) {
+	            while (this.matchJSX('.')) {
+	                var object = elementName;
+	                this.expectJSX('.');
+	                var property = this.parseJSXIdentifier();
+	                elementName = this.finalize(node, new JSXNode.JSXMemberExpression(object, property));
+	            }
+	        }
+	        return elementName;
+	    };
+	    JSXParser.prototype.parseJSXAttributeName = function () {
+	        var node = this.createJSXNode();
+	        var attributeName;
+	        var identifier = this.parseJSXIdentifier();
+	        if (this.matchJSX(':')) {
+	            var namespace = identifier;
+	            this.expectJSX(':');
+	            var name_2 = this.parseJSXIdentifier();
+	            attributeName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_2));
+	        }
+	        else {
+	            attributeName = identifier;
+	        }
+	        return attributeName;
+	    };
+	    JSXParser.prototype.parseJSXStringLiteralAttribute = function () {
+	        var node = this.createJSXNode();
+	        var token = this.nextJSXToken();
+	        if (token.type !== token_1.Token.StringLiteral) {
+	            this.throwUnexpectedToken(token);
+	        }
+	        var raw = this.getTokenRaw(token);
+	        return this.finalize(node, new Node.Literal(token.value, raw));
+	    };
+	    JSXParser.prototype.parseJSXExpressionAttribute = function () {
+	        var node = this.createJSXNode();
+	        this.expectJSX('{');
+	        this.finishJSX();
+	        if (this.match('}')) {
+	            this.tolerateError('JSX attributes must only be assigned a non-empty expression');
+	        }
+	        var expression = this.parseAssignmentExpression();
+	        this.reenterJSX();
+	        return this.finalize(node, new JSXNode.JSXExpressionContainer(expression));
+	    };
+	    JSXParser.prototype.parseJSXAttributeValue = function () {
+	        return this.matchJSX('{') ? this.parseJSXExpressionAttribute() :
+	            this.matchJSX('<') ? this.parseJSXElement() : this.parseJSXStringLiteralAttribute();
+	    };
+	    JSXParser.prototype.parseJSXNameValueAttribute = function () {
+	        var node = this.createJSXNode();
+	        var name = this.parseJSXAttributeName();
+	        var value = null;
+	        if (this.matchJSX('=')) {
+	            this.expectJSX('=');
+	            value = this.parseJSXAttributeValue();
+	        }
+	        return this.finalize(node, new JSXNode.JSXAttribute(name, value));
+	    };
+	    JSXParser.prototype.parseJSXSpreadAttribute = function () {
+	        var node = this.createJSXNode();
+	        this.expectJSX('{');
+	        this.expectJSX('...');
+	        this.finishJSX();
+	        var argument = this.parseAssignmentExpression();
+	        this.reenterJSX();
+	        return this.finalize(node, new JSXNode.JSXSpreadAttribute(argument));
+	    };
+	    JSXParser.prototype.parseJSXAttributes = function () {
+	        var attributes = [];
+	        while (!this.matchJSX('/') && !this.matchJSX('>')) {
+	            var attribute = this.matchJSX('{') ? this.parseJSXSpreadAttribute() :
+	                this.parseJSXNameValueAttribute();
+	            attributes.push(attribute);
+	        }
+	        return attributes;
+	    };
+	    JSXParser.prototype.parseJSXOpeningElement = function () {
+	        var node = this.createJSXNode();
+	        this.expectJSX('<');
+	        var name = this.parseJSXElementName();
+	        var attributes = this.parseJSXAttributes();
+	        var selfClosing = this.matchJSX('/');
+	        if (selfClosing) {
+	            this.expectJSX('/');
+	        }
+	        this.expectJSX('>');
+	        return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes));
+	    };
+	    JSXParser.prototype.parseJSXBoundaryElement = function () {
+	        var node = this.createJSXNode();
+	        this.expectJSX('<');
+	        if (this.matchJSX('/')) {
+	            this.expectJSX('/');
+	            var name_3 = this.parseJSXElementName();
+	            this.expectJSX('>');
+	            return this.finalize(node, new JSXNode.JSXClosingElement(name_3));
+	        }
+	        var name = this.parseJSXElementName();
+	        var attributes = this.parseJSXAttributes();
+	        var selfClosing = this.matchJSX('/');
+	        if (selfClosing) {
+	            this.expectJSX('/');
+	        }
+	        this.expectJSX('>');
+	        return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes));
+	    };
+	    JSXParser.prototype.parseJSXEmptyExpression = function () {
+	        var node = this.createJSXChildNode();
+	        this.collectComments();
+	        this.lastMarker.index = this.scanner.index;
+	        this.lastMarker.lineNumber = this.scanner.lineNumber;
+	        this.lastMarker.lineStart = this.scanner.lineStart;
+	        return this.finalize(node, new JSXNode.JSXEmptyExpression());
+	    };
+	    JSXParser.prototype.parseJSXExpressionContainer = function () {
+	        var node = this.createJSXNode();
+	        this.expectJSX('{');
+	        var expression;
+	        if (this.matchJSX('}')) {
+	            expression = this.parseJSXEmptyExpression();
+	            this.expectJSX('}');
+	        }
+	        else {
+	            this.finishJSX();
+	            expression = this.parseAssignmentExpression();
+	            this.reenterJSX();
+	        }
+	        return this.finalize(node, new JSXNode.JSXExpressionContainer(expression));
+	    };
+	    JSXParser.prototype.parseJSXChildren = function () {
+	        var children = [];
+	        while (!this.scanner.eof()) {
+	            var node = this.createJSXChildNode();
+	            var token = this.nextJSXText();
+	            if (token.start < token.end) {
+	                var raw = this.getTokenRaw(token);
+	                var child = this.finalize(node, new JSXNode.JSXText(token.value, raw));
+	                children.push(child);
+	            }
+	            if (this.scanner.source[this.scanner.index] === '{') {
+	                var container = this.parseJSXExpressionContainer();
+	                children.push(container);
+	            }
+	            else {
+	                break;
+	            }
+	        }
+	        return children;
+	    };
+	    JSXParser.prototype.parseComplexJSXElement = function (el) {
+	        var stack = [];
+	        while (!this.scanner.eof()) {
+	            el.children = el.children.concat(this.parseJSXChildren());
+	            var node = this.createJSXChildNode();
+	            var element = this.parseJSXBoundaryElement();
+	            if (element.type === jsx_syntax_1.JSXSyntax.JSXOpeningElement) {
+	                var opening = (element);
+	                if (opening.selfClosing) {
+	                    var child = this.finalize(node, new JSXNode.JSXElement(opening, [], null));
+	                    el.children.push(child);
+	                }
+	                else {
+	                    stack.push(el);
+	                    el = { node: node, opening: opening, closing: null, children: [] };
+	                }
+	            }
+	            if (element.type === jsx_syntax_1.JSXSyntax.JSXClosingElement) {
+	                el.closing = (element);
+	                var open_1 = getQualifiedElementName(el.opening.name);
+	                var close_1 = getQualifiedElementName(el.closing.name);
+	                if (open_1 !== close_1) {
+	                    this.tolerateError('Expected corresponding JSX closing tag for %0', open_1);
+	                }
+	                if (stack.length > 0) {
+	                    var child = this.finalize(el.node, new JSXNode.JSXElement(el.opening, el.children, el.closing));
+	                    el = stack.pop();
+	                    el.children.push(child);
+	                }
+	                else {
+	                    break;
+	                }
+	            }
+	        }
+	        return el;
+	    };
+	    JSXParser.prototype.parseJSXElement = function () {
+	        var node = this.createJSXNode();
+	        var opening = this.parseJSXOpeningElement();
+	        var children = [];
+	        var closing = null;
+	        if (!opening.selfClosing) {
+	            var el = this.parseComplexJSXElement({ node: node, opening: opening, closing: closing, children: children });
+	            children = el.children;
+	            closing = el.closing;
+	        }
+	        return this.finalize(node, new JSXNode.JSXElement(opening, children, closing));
+	    };
+	    JSXParser.prototype.parseJSXRoot = function () {
+	        // Pop the opening '<' added from the lookahead.
+	        if (this.config.tokens) {
+	            this.tokens.pop();
+	        }
+	        this.startJSX();
+	        var element = this.parseJSXElement();
+	        this.finishJSX();
+	        return element;
+	    };
+	    return JSXParser;
+	}(parser_1.Parser));
+	exports.JSXParser = JSXParser;
+
+
+/***/ },
+/* 12 */
+/***/ function(module, exports) {
+
+	// Generated by generate-xhtml-entities.js. DO NOT MODIFY!
+	"use strict";
+	exports.XHTMLEntities = {
+	    quot: '\u0022',
+	    amp: '\u0026',
+	    apos: '\u0027',
+	    gt: '\u003E',
+	    nbsp: '\u00A0',
+	    iexcl: '\u00A1',
+	    cent: '\u00A2',
+	    pound: '\u00A3',
+	    curren: '\u00A4',
+	    yen: '\u00A5',
+	    brvbar: '\u00A6',
+	    sect: '\u00A7',
+	    uml: '\u00A8',
+	    copy: '\u00A9',
+	    ordf: '\u00AA',
+	    laquo: '\u00AB',
+	    not: '\u00AC',
+	    shy: '\u00AD',
+	    reg: '\u00AE',
+	    macr: '\u00AF',
+	    deg: '\u00B0',
+	    plusmn: '\u00B1',
+	    sup2: '\u00B2',
+	    sup3: '\u00B3',
+	    acute: '\u00B4',
+	    micro: '\u00B5',
+	    para: '\u00B6',
+	    middot: '\u00B7',
+	    cedil: '\u00B8',
+	    sup1: '\u00B9',
+	    ordm: '\u00BA',
+	    raquo: '\u00BB',
+	    frac14: '\u00BC',
+	    frac12: '\u00BD',
+	    frac34: '\u00BE',
+	    iquest: '\u00BF',
+	    Agrave: '\u00C0',
+	    Aacute: '\u00C1',
+	    Acirc: '\u00C2',
+	    Atilde: '\u00C3',
+	    Auml: '\u00C4',
+	    Aring: '\u00C5',
+	    AElig: '\u00C6',
+	    Ccedil: '\u00C7',
+	    Egrave: '\u00C8',
+	    Eacute: '\u00C9',
+	    Ecirc: '\u00CA',
+	    Euml: '\u00CB',
+	    Igrave: '\u00CC',
+	    Iacute: '\u00CD',
+	    Icirc: '\u00CE',
+	    Iuml: '\u00CF',
+	    ETH: '\u00D0',
+	    Ntilde: '\u00D1',
+	    Ograve: '\u00D2',
+	    Oacute: '\u00D3',
+	    Ocirc: '\u00D4',
+	    Otilde: '\u00D5',
+	    Ouml: '\u00D6',
+	    times: '\u00D7',
+	    Oslash: '\u00D8',
+	    Ugrave: '\u00D9',
+	    Uacute: '\u00DA',
+	    Ucirc: '\u00DB',
+	    Uuml: '\u00DC',
+	    Yacute: '\u00DD',
+	    THORN: '\u00DE',
+	    szlig: '\u00DF',
+	    agrave: '\u00E0',
+	    aacute: '\u00E1',
+	    acirc: '\u00E2',
+	    atilde: '\u00E3',
+	    auml: '\u00E4',
+	    aring: '\u00E5',
+	    aelig: '\u00E6',
+	    ccedil: '\u00E7',
+	    egrave: '\u00E8',
+	    eacute: '\u00E9',
+	    ecirc: '\u00EA',
+	    euml: '\u00EB',
+	    igrave: '\u00EC',
+	    iacute: '\u00ED',
+	    icirc: '\u00EE',
+	    iuml: '\u00EF',
+	    eth: '\u00F0',
+	    ntilde: '\u00F1',
+	    ograve: '\u00F2',
+	    oacute: '\u00F3',
+	    ocirc: '\u00F4',
+	    otilde: '\u00F5',
+	    ouml: '\u00F6',
+	    divide: '\u00F7',
+	    oslash: '\u00F8',
+	    ugrave: '\u00F9',
+	    uacute: '\u00FA',
+	    ucirc: '\u00FB',
+	    uuml: '\u00FC',
+	    yacute: '\u00FD',
+	    thorn: '\u00FE',
+	    yuml: '\u00FF',
+	    OElig: '\u0152',
+	    oelig: '\u0153',
+	    Scaron: '\u0160',
+	    scaron: '\u0161',
+	    Yuml: '\u0178',
+	    fnof: '\u0192',
+	    circ: '\u02C6',
+	    tilde: '\u02DC',
+	    Alpha: '\u0391',
+	    Beta: '\u0392',
+	    Gamma: '\u0393',
+	    Delta: '\u0394',
+	    Epsilon: '\u0395',
+	    Zeta: '\u0396',
+	    Eta: '\u0397',
+	    Theta: '\u0398',
+	    Iota: '\u0399',
+	    Kappa: '\u039A',
+	    Lambda: '\u039B',
+	    Mu: '\u039C',
+	    Nu: '\u039D',
+	    Xi: '\u039E',
+	    Omicron: '\u039F',
+	    Pi: '\u03A0',
+	    Rho: '\u03A1',
+	    Sigma: '\u03A3',
+	    Tau: '\u03A4',
+	    Upsilon: '\u03A5',
+	    Phi: '\u03A6',
+	    Chi: '\u03A7',
+	    Psi: '\u03A8',
+	    Omega: '\u03A9',
+	    alpha: '\u03B1',
+	    beta: '\u03B2',
+	    gamma: '\u03B3',
+	    delta: '\u03B4',
+	    epsilon: '\u03B5',
+	    zeta: '\u03B6',
+	    eta: '\u03B7',
+	    theta: '\u03B8',
+	    iota: '\u03B9',
+	    kappa: '\u03BA',
+	    lambda: '\u03BB',
+	    mu: '\u03BC',
+	    nu: '\u03BD',
+	    xi: '\u03BE',
+	    omicron: '\u03BF',
+	    pi: '\u03C0',
+	    rho: '\u03C1',
+	    sigmaf: '\u03C2',
+	    sigma: '\u03C3',
+	    tau: '\u03C4',
+	    upsilon: '\u03C5',
+	    phi: '\u03C6',
+	    chi: '\u03C7',
+	    psi: '\u03C8',
+	    omega: '\u03C9',
+	    thetasym: '\u03D1',
+	    upsih: '\u03D2',
+	    piv: '\u03D6',
+	    ensp: '\u2002',
+	    emsp: '\u2003',
+	    thinsp: '\u2009',
+	    zwnj: '\u200C',
+	    zwj: '\u200D',
+	    lrm: '\u200E',
+	    rlm: '\u200F',
+	    ndash: '\u2013',
+	    mdash: '\u2014',
+	    lsquo: '\u2018',
+	    rsquo: '\u2019',
+	    sbquo: '\u201A',
+	    ldquo: '\u201C',
+	    rdquo: '\u201D',
+	    bdquo: '\u201E',
+	    dagger: '\u2020',
+	    Dagger: '\u2021',
+	    bull: '\u2022',
+	    hellip: '\u2026',
+	    permil: '\u2030',
+	    prime: '\u2032',
+	    Prime: '\u2033',
+	    lsaquo: '\u2039',
+	    rsaquo: '\u203A',
+	    oline: '\u203E',
+	    frasl: '\u2044',
+	    euro: '\u20AC',
+	    image: '\u2111',
+	    weierp: '\u2118',
+	    real: '\u211C',
+	    trade: '\u2122',
+	    alefsym: '\u2135',
+	    larr: '\u2190',
+	    uarr: '\u2191',
+	    rarr: '\u2192',
+	    darr: '\u2193',
+	    harr: '\u2194',
+	    crarr: '\u21B5',
+	    lArr: '\u21D0',
+	    uArr: '\u21D1',
+	    rArr: '\u21D2',
+	    dArr: '\u21D3',
+	    hArr: '\u21D4',
+	    forall: '\u2200',
+	    part: '\u2202',
+	    exist: '\u2203',
+	    empty: '\u2205',
+	    nabla: '\u2207',
+	    isin: '\u2208',
+	    notin: '\u2209',
+	    ni: '\u220B',
+	    prod: '\u220F',
+	    sum: '\u2211',
+	    minus: '\u2212',
+	    lowast: '\u2217',
+	    radic: '\u221A',
+	    prop: '\u221D',
+	    infin: '\u221E',
+	    ang: '\u2220',
+	    and: '\u2227',
+	    or: '\u2228',
+	    cap: '\u2229',
+	    cup: '\u222A',
+	    int: '\u222B',
+	    there4: '\u2234',
+	    sim: '\u223C',
+	    cong: '\u2245',
+	    asymp: '\u2248',
+	    ne: '\u2260',
+	    equiv: '\u2261',
+	    le: '\u2264',
+	    ge: '\u2265',
+	    sub: '\u2282',
+	    sup: '\u2283',
+	    nsub: '\u2284',
+	    sube: '\u2286',
+	    supe: '\u2287',
+	    oplus: '\u2295',
+	    otimes: '\u2297',
+	    perp: '\u22A5',
+	    sdot: '\u22C5',
+	    lceil: '\u2308',
+	    rceil: '\u2309',
+	    lfloor: '\u230A',
+	    rfloor: '\u230B',
+	    loz: '\u25CA',
+	    spades: '\u2660',
+	    clubs: '\u2663',
+	    hearts: '\u2665',
+	    diams: '\u2666',
+	    lang: '\u27E8',
+	    rang: '\u27E9'
+	};
+
+
+/***/ },
+/* 13 */
+/***/ function(module, exports) {
+
+	"use strict";
+	exports.JSXSyntax = {
+	    JSXAttribute: 'JSXAttribute',
+	    JSXClosingElement: 'JSXClosingElement',
+	    JSXElement: 'JSXElement',
+	    JSXEmptyExpression: 'JSXEmptyExpression',
+	    JSXExpressionContainer: 'JSXExpressionContainer',
+	    JSXIdentifier: 'JSXIdentifier',
+	    JSXMemberExpression: 'JSXMemberExpression',
+	    JSXNamespacedName: 'JSXNamespacedName',
+	    JSXOpeningElement: 'JSXOpeningElement',
+	    JSXSpreadAttribute: 'JSXSpreadAttribute',
+	    JSXText: 'JSXText'
+	};
+
+
+/***/ },
+/* 14 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+	var jsx_syntax_1 = __webpack_require__(13);
+	var JSXClosingElement = (function () {
+	    function JSXClosingElement(name) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXClosingElement;
+	        this.name = name;
+	    }
+	    return JSXClosingElement;
+	}());
+	exports.JSXClosingElement = JSXClosingElement;
+	var JSXElement = (function () {
+	    function JSXElement(openingElement, children, closingElement) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXElement;
+	        this.openingElement = openingElement;
+	        this.children = children;
+	        this.closingElement = closingElement;
+	    }
+	    return JSXElement;
+	}());
+	exports.JSXElement = JSXElement;
+	var JSXEmptyExpression = (function () {
+	    function JSXEmptyExpression() {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXEmptyExpression;
+	    }
+	    return JSXEmptyExpression;
+	}());
+	exports.JSXEmptyExpression = JSXEmptyExpression;
+	var JSXExpressionContainer = (function () {
+	    function JSXExpressionContainer(expression) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXExpressionContainer;
+	        this.expression = expression;
+	    }
+	    return JSXExpressionContainer;
+	}());
+	exports.JSXExpressionContainer = JSXExpressionContainer;
+	var JSXIdentifier = (function () {
+	    function JSXIdentifier(name) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXIdentifier;
+	        this.name = name;
+	    }
+	    return JSXIdentifier;
+	}());
+	exports.JSXIdentifier = JSXIdentifier;
+	var JSXMemberExpression = (function () {
+	    function JSXMemberExpression(object, property) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXMemberExpression;
+	        this.object = object;
+	        this.property = property;
+	    }
+	    return JSXMemberExpression;
+	}());
+	exports.JSXMemberExpression = JSXMemberExpression;
+	var JSXAttribute = (function () {
+	    function JSXAttribute(name, value) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXAttribute;
+	        this.name = name;
+	        this.value = value;
+	    }
+	    return JSXAttribute;
+	}());
+	exports.JSXAttribute = JSXAttribute;
+	var JSXNamespacedName = (function () {
+	    function JSXNamespacedName(namespace, name) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXNamespacedName;
+	        this.namespace = namespace;
+	        this.name = name;
+	    }
+	    return JSXNamespacedName;
+	}());
+	exports.JSXNamespacedName = JSXNamespacedName;
+	var JSXOpeningElement = (function () {
+	    function JSXOpeningElement(name, selfClosing, attributes) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXOpeningElement;
+	        this.name = name;
+	        this.selfClosing = selfClosing;
+	        this.attributes = attributes;
+	    }
+	    return JSXOpeningElement;
+	}());
+	exports.JSXOpeningElement = JSXOpeningElement;
+	var JSXSpreadAttribute = (function () {
+	    function JSXSpreadAttribute(argument) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXSpreadAttribute;
+	        this.argument = argument;
+	    }
+	    return JSXSpreadAttribute;
+	}());
+	exports.JSXSpreadAttribute = JSXSpreadAttribute;
+	var JSXText = (function () {
+	    function JSXText(value, raw) {
+	        this.type = jsx_syntax_1.JSXSyntax.JSXText;
+	        this.value = value;
+	        this.raw = raw;
+	    }
+	    return JSXText;
+	}());
+	exports.JSXText = JSXText;
+
+
+/***/ },
+/* 15 */
+/***/ function(module, exports, __webpack_require__) {
+
+	"use strict";
+	var scanner_1 = __webpack_require__(8);
+	var error_handler_1 = __webpack_require__(6);
+	var token_1 = __webpack_require__(7);
+	var Reader = (function () {
+	    function Reader() {
+	        this.values = [];
+	        this.curly = this.paren = -1;
+	    }
+	    ;
+	    // A function following one of those tokens is an expression.
+	    Reader.prototype.beforeFunctionExpression = function (t) {
+	        return ['(', '{', '[', 'in', 'typeof', 'instanceof', 'new',
+	            'return', 'case', 'delete', 'throw', 'void',
+	            // assignment operators
+	            '=', '+=', '-=', '*=', '**=', '/=', '%=', '<<=', '>>=', '>>>=',
+	            '&=', '|=', '^=', ',',
+	            // binary/unary operators
+	            '+', '-', '*', '**', '/', '%', '++', '--', '<<', '>>', '>>>', '&',
+	            '|', '^', '!', '~', '&&', '||', '?', ':', '===', '==', '>=',
+	            '<=', '<', '>', '!=', '!=='].indexOf(t) >= 0;
+	    };
+	    ;
+	    // Determine if forward slash (/) is an operator or part of a regular expression
+	    // https://github.com/mozilla/sweet.js/wiki/design
+	    Reader.prototype.isRegexStart = function () {
+	        var previous = this.values[this.values.length - 1];
+	        var regex = (previous !== null);
+	        switch (previous) {
+	            case 'this':
+	            case ']':
+	                regex = false;
+	                break;
+	            case ')':
+	                var check = this.values[this.paren - 1];
+	                regex = (check === 'if' || check === 'while' || check === 'for' || check === 'with');
+	                break;
+	            case '}':
+	                // Dividing a function by anything makes little sense,
+	                // but we have to check for that.
+	                regex = false;
+	                if (this.values[this.curly - 3] === 'function') {
+	                    // Anonymous function, e.g. function(){} /42
+	                    var check_1 = this.values[this.curly - 4];
+	                    regex = check_1 ? !this.beforeFunctionExpression(check_1) : false;
+	                }
+	                else if (this.values[this.curly - 4] === 'function') {
+	                    // Named function, e.g. function f(){} /42/
+	                    var check_2 = this.values[this.curly - 5];
+	                    regex = check_2 ? !this.beforeFunctionExpression(check_2) : true;
+	                }
+	        }
+	        return regex;
+	    };
+	    ;
+	    Reader.prototype.push = function (token) {
+	        if (token.type === token_1.Token.Punctuator || token.type === token_1.Token.Keyword) {
+	            if (token.value === '{') {
+	                this.curly = this.values.length;
+	            }
+	            else if (token.value === '(') {
+	                this.paren = this.values.length;
+	            }
+	            this.values.push(token.value);
+	        }
+	        else {
+	            this.values.push(null);
+	        }
+	    };
+	    ;
+	    return Reader;
+	}());
+	var Tokenizer = (function () {
+	    function Tokenizer(code, config) {
+	        this.errorHandler = new error_handler_1.ErrorHandler();
+	        this.errorHandler.tolerant = config ? (typeof config.tolerant === 'boolean' && config.tolerant) : false;
+	        this.scanner = new scanner_1.Scanner(code, this.errorHandler);
+	        this.scanner.trackComment = config ? (typeof config.comment === 'boolean' && config.comment) : false;
+	        this.trackRange = config ? (typeof config.range === 'boolean' && config.range) : false;
+	        this.trackLoc = config ? (typeof config.loc === 'boolean' && config.loc) : false;
+	        this.buffer = [];
+	        this.reader = new Reader();
+	    }
+	    ;
+	    Tokenizer.prototype.errors = function () {
+	        return this.errorHandler.errors;
+	    };
+	    ;
+	    Tokenizer.prototype.getNextToken = function () {
+	        if (this.buffer.length === 0) {
+	            var comments = this.scanner.scanComments();
+	            if (this.scanner.trackComment) {
+	                for (var i = 0; i < comments.length; ++i) {
+	                    var e = comments[i];
+	                    var comment = void 0;
+	                    var value = this.scanner.source.slice(e.slice[0], e.slice[1]);
+	                    comment = {
+	                        type: e.multiLine ? 'BlockComment' : 'LineComment',
+	                        value: value
+	                    };
+	                    if (this.trackRange) {
+	                        comment.range = e.range;
+	                    }
+	                    if (this.trackLoc) {
+	                        comment.loc = e.loc;
+	                    }
+	                    this.buffer.push(comment);
+	                }
+	            }
+	            if (!this.scanner.eof()) {
+	                var loc = void 0;
+	                if (this.trackLoc) {
+	                    loc = {
+	                        start: {
+	                            line: this.scanner.lineNumber,
+	                            column: this.scanner.index - this.scanner.lineStart
+	                        },
+	                        end: {}
+	                    };
+	                }
+	                var token = void 0;
+	                if (this.scanner.source[this.scanner.index] === '/') {
+	                    token = this.reader.isRegexStart() ? this.scanner.scanRegExp() : this.scanner.scanPunctuator();
+	                }
+	                else {
+	                    token = this.scanner.lex();
+	                }
+	                this.reader.push(token);
+	                var entry = void 0;
+	                entry = {
+	                    type: token_1.TokenName[token.type],
+	                    value: this.scanner.source.slice(token.start, token.end)
+	                };
+	                if (this.trackRange) {
+	                    entry.range = [token.start, token.end];
+	                }
+	                if (this.trackLoc) {
+	                    loc.end = {
+	                        line: this.scanner.lineNumber,
+	                        column: this.scanner.index - this.scanner.lineStart
+	                    };
+	                    entry.loc = loc;
+	                }
+	                if (token.regex) {
+	                    entry.regex = token.regex;
+	                }
+	                this.buffer.push(entry);
+	            }
+	        }
+	        return this.buffer.shift();
+	    };
+	    ;
+	    return Tokenizer;
+	}());
+	exports.Tokenizer = Tokenizer;
+
+
+/***/ }
+/******/ ])
+});
+;
\ No newline at end of file
diff --git a/node_modules/js-yaml/node_modules/esprima/package.json b/node_modules/js-yaml/node_modules/esprima/package.json
new file mode 100644
index 000000000..4ce474ddf
--- /dev/null
+++ b/node_modules/js-yaml/node_modules/esprima/package.json
@@ -0,0 +1,109 @@
+{
+  "name": "esprima",
+  "description": "ECMAScript parsing infrastructure for multipurpose analysis",
+  "homepage": "http://esprima.org",
+  "main": "dist/esprima.js",
+  "bin": {
+    "esparse": "./bin/esparse.js",
+    "esvalidate": "./bin/esvalidate.js"
+  },
+  "version": "3.1.3",
+  "files": [
+    "bin",
+    "dist/esprima.js"
+  ],
+  "engines": {
+    "node": ">=4"
+  },
+  "author": {
+    "name": "Ariya Hidayat",
+    "email": "ariya.hidayat@gmail.com"
+  },
+  "maintainers": [
+    {
+      "name": "Ariya Hidayat",
+      "email": "ariya.hidayat@gmail.com",
+      "web": "http://ariya.ofilabs.com"
+    }
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jquery/esprima.git"
+  },
+  "bugs": {
+    "url": "https://github.com/jquery/esprima/issues"
+  },
+  "license": "BSD-2-Clause",
+  "devDependencies": {
+    "codecov.io": "~0.1.6",
+    "escomplex-js": "1.2.0",
+    "everything.js": "~1.0.3",
+    "glob": "~7.1.0",
+    "istanbul": "~0.4.0",
+    "json-diff": "~0.3.1",
+    "karma": "~1.3.0",
+    "karma-chrome-launcher": "~2.0.0",
+    "karma-detect-browsers": "~2.1.0",
+    "karma-firefox-launcher": "~1.0.0",
+    "karma-ie-launcher": "~1.0.0",
+    "karma-mocha": "~1.2.0",
+    "karma-safari-launcher": "~1.0.0",
+    "karma-sauce-launcher": "~1.0.0",
+    "lodash": "~3.10.1",
+    "mocha": "~3.1.0",
+    "node-tick-processor": "~0.0.2",
+    "regenerate": "~1.3.1",
+    "temp": "~0.8.3",
+    "tslint": "~3.15.1",
+    "typescript": "~1.8.10",
+    "typescript-formatter": "~2.3.0",
+    "unicode-8.0.0": "~0.7.0",
+    "webpack": "~1.13.2"
+  },
+  "keywords": [
+    "ast",
+    "ecmascript",
+    "esprima",
+    "javascript",
+    "parser",
+    "syntax"
+  ],
+  "scripts": {
+    "check-version": "node test/check-version.js",
+    "tslint": "tslint src/*.ts",
+    "code-style": "tsfmt --verify src/*.ts && tsfmt --verify test/*.js",
+    "format-code": "tsfmt -r src/*.ts && tsfmt -r test/*.js",
+    "complexity": "node test/check-complexity.js",
+    "static-analysis": "npm run check-version && npm run tslint && npm run code-style && npm run complexity",
+    "hostile-env-tests": "node test/hostile-environment-tests.js",
+    "unit-tests": "node test/unit-tests.js",
+    "api-tests": "mocha -R dot test/api-tests.js",
+    "grammar-tests": "node test/grammar-tests.js",
+    "regression-tests": "node test/regression-tests.js",
+    "all-tests": "npm run generate-fixtures && npm run unit-tests && npm run api-tests && npm run grammar-tests && npm run regression-tests && npm run hostile-env-tests",
+    "generate-fixtures": "node tools/generate-fixtures.js",
+    "browser-tests": "npm run compile && npm run generate-fixtures && cd test && karma start --single-run",
+    "saucelabs-evergreen": "cd test && karma start saucelabs-evergreen.conf.js",
+    "saucelabs-safari": "cd test && karma start saucelabs-safari.conf.js",
+    "saucelabs-ie": "cd test && karma start saucelabs-ie.conf.js",
+    "saucelabs": "npm run saucelabs-evergreen && npm run saucelabs-ie && npm run saucelabs-safari",
+    "analyze-coverage": "istanbul cover test/unit-tests.js",
+    "check-coverage": "istanbul check-coverage --statement 100 --branch 100 --function 100",
+    "dynamic-analysis": "npm run analyze-coverage && npm run check-coverage",
+    "compile": "tsc -p src/ && webpack && node tools/fixupbundle.js",
+    "test": "npm run compile && npm run all-tests && npm run static-analysis && npm run dynamic-analysis",
+    "prepublish": "npm run compile",
+    "profile": "node --prof test/profile.js && mv isolate*.log v8.log && node-tick-processor",
+    "benchmark-parser": "node -expose_gc test/benchmark-parser.js",
+    "benchmark-tokenizer": "node --expose_gc test/benchmark-tokenizer.js",
+    "benchmark": "npm run benchmark-parser && npm run benchmark-tokenizer",
+    "codecov" : "istanbul report cobertura && codecov < ./coverage/cobertura-coverage.xml",
+    "downstream": "node test/downstream.js",
+    "travis": "npm test",
+    "circleci": "npm test && npm run codecov && npm run downstream",
+    "appveyor": "npm run compile && npm run all-tests && npm run browser-tests",
+    "droneio": "npm run compile && npm run all-tests && npm run saucelabs",
+    "generate-regex": "node tools/generate-identifier-regex.js",
+    "generate-xhtml-entities": "node tools/generate-xhtml-entities.js"
+  }
+}
diff --git a/node_modules/js-yaml/package.json b/node_modules/js-yaml/package.json
new file mode 100644
index 000000000..b313a9ff2
--- /dev/null
+++ b/node_modules/js-yaml/package.json
@@ -0,0 +1,46 @@
+{
+  "name": "js-yaml",
+  "version": "3.8.3",
+  "description": "YAML 1.2 parser and serializer",
+  "keywords": [
+    "yaml",
+    "parser",
+    "serializer",
+    "pyyaml"
+  ],
+  "homepage": "https://github.com/nodeca/js-yaml",
+  "author": "Vladimir Zapparov <dervus.grim@gmail.com>",
+  "contributors": [
+    "Aleksey V Zapparov <ixti@member.fsf.org> (http://www.ixti.net/)",
+    "Vitaly Puzrin <vitaly@rcdesign.ru> (https://github.com/puzrin)",
+    "Martin Grenfell <martin.grenfell@gmail.com> (http://got-ravings.blogspot.com)"
+  ],
+  "license": "MIT",
+  "repository": "nodeca/js-yaml",
+  "files": [
+    "index.js",
+    "lib/",
+    "bin/",
+    "dist/"
+  ],
+  "bin": {
+    "js-yaml": "bin/js-yaml.js"
+  },
+  "dependencies": {
+    "argparse": "^1.0.7",
+    "esprima": "^3.1.1"
+  },
+  "devDependencies": {
+    "ansi": "*",
+    "benchmark": "*",
+    "browserify": "^13.0.0",
+    "codemirror": "^5.13.4",
+    "eslint": "^3.10.0",
+    "istanbul": "*",
+    "mocha": "*",
+    "uglify-js": "^2.6.1"
+  },
+  "scripts": {
+    "test": "make test"
+  }
+}