build: Add some required modules for node

1 files changed, 453 insertions, 0 deletions

diff --git a/node_modules/snapdragon-node/README.md b/node_modules/snapdragon-node/README.md
new file mode 100644
index 0000000..2300a3c
--- /dev/null
+++ b/node_modules/snapdragon-node/README.md
@@ -0,0 +1,453 @@
+# snapdragon-node [![NPM version](https://img.shields.io/npm/v/snapdragon-node.svg?style=flat)](https://www.npmjs.com/package/snapdragon-node) [![NPM monthly downloads](https://img.shields.io/npm/dm/snapdragon-node.svg?style=flat)](https://npmjs.org/package/snapdragon-node) [![NPM total downloads](https://img.shields.io/npm/dt/snapdragon-node.svg?style=flat)](https://npmjs.org/package/snapdragon-node) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/snapdragon-node.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/snapdragon-node)
+
+> Snapdragon utility for creating a new AST node in custom code, such as plugins.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/):
+
+```sh
+$ npm install --save snapdragon-node
+```
+
+## Usage
+
+With [snapdragon](https://github.com/jonschlinkert/snapdragon) v0.9.0 and higher you can use `this.node()` to create a new `Node`, whenever it makes sense.
+
+```js
+var Node = require('snapdragon-node');
+var Snapdragon = require('snapdragon');
+var snapdragon = new Snapdragon();
+
+// example usage inside a parser visitor function
+snapdragon.parser.set('foo', function() {
+  // get the current "start" position
+  var pos = this.position();
+
+  // returns the match if regex matches the substring 
+  // at the current position on `parser.input`
+  var match = this.match(/foo/);
+  if (match) {
+    // call "pos" on the node, to set the start and end 
+    // positions, and return the node to push it onto the AST
+    // (snapdragon will push the node onto the correct
+    // nodes array, based on the stack)
+    return pos(new Node({type: 'bar', val: match[0]}));
+  }
+});
+```
+
+## API
+
+### [Node](index.js#L22)
+
+Create a new AST `Node` with the given `val` and `type`.
+
+**Params**
+
+* `val` **{String|Object}**: Pass a matched substring, or an object to merge onto the node.
+* `type` **{String}**: The node type to use when `val` is a string.
+* `returns` **{Object}**: node instance
+
+**Example**
+
+```js
+var node = new Node('*', 'Star');
+var node = new Node({type: 'star', val: '*'});
+```
+
+### [.isNode](index.js#L61)
+
+Returns true if the given value is a node.
+
+**Params**
+
+* `node` **{Object}**
+* `returns` **{Boolean}**
+
+**Example**
+
+```js
+var Node = require('snapdragon-node');
+var node = new Node({type: 'foo'});
+console.log(Node.isNode(node)); //=> true
+console.log(Node.isNode({})); //=> false
+```
+
+### [.define](index.js#L80)
+
+Define a non-enumberable property on the node instance. Useful for adding properties that shouldn't be extended or visible during debugging.
+
+**Params**
+
+* `name` **{String}**
+* `val` **{any}**
+* `returns` **{Object}**: returns the node instance
+
+**Example**
+
+```js
+var node = new Node();
+node.define('foo', 'something non-enumerable');
+```
+
+### [.isEmpty](index.js#L100)
+
+Returns true if `node.val` is an empty string, or `node.nodes` does not contain any non-empty text nodes.
+
+**Params**
+
+* `fn` **{Function}**: (optional) Filter function that is called on `node` and/or child nodes. `isEmpty` will return false immediately when the filter function returns false on any nodes.
+* `returns` **{Boolean}**
+
+**Example**
+
+```js
+var node = new Node({type: 'text'});
+node.isEmpty(); //=> true
+node.val = 'foo';
+node.isEmpty(); //=> false
+```
+
+### [.push](index.js#L118)
+
+Given node `foo` and node `bar`, push node `bar` onto `foo.nodes`, and set `foo` as `bar.parent`.
+
+**Params**
+
+* `node` **{Object}**
+* `returns` **{Number}**: Returns the length of `node.nodes`
+
+**Example**
+
+```js
+var foo = new Node({type: 'foo'});
+var bar = new Node({type: 'bar'});
+foo.push(bar);
+```
+
+### [.unshift](index.js#L140)
+
+Given node `foo` and node `bar`, unshift node `bar` onto `foo.nodes`, and set `foo` as `bar.parent`.
+
+**Params**
+
+* `node` **{Object}**
+* `returns` **{Number}**: Returns the length of `node.nodes`
+
+**Example**
+
+```js
+var foo = new Node({type: 'foo'});
+var bar = new Node({type: 'bar'});
+foo.unshift(bar);
+```
+
+### [.pop](index.js#L167)
+
+Pop a node from `node.nodes`.
+
+* `returns` **{Number}**: Returns the popped `node`
+
+**Example**
+
+```js
+var node = new Node({type: 'foo'});
+node.push(new Node({type: 'a'}));
+node.push(new Node({type: 'b'}));
+node.push(new Node({type: 'c'}));
+node.push(new Node({type: 'd'}));
+console.log(node.nodes.length);
+//=> 4
+node.pop();
+console.log(node.nodes.length);
+//=> 3
+```
+
+### [.shift](index.js#L190)
+
+Shift a node from `node.nodes`.
+
+* `returns` **{Object}**: Returns the shifted `node`
+
+**Example**
+
+```js
+var node = new Node({type: 'foo'});
+node.push(new Node({type: 'a'}));
+node.push(new Node({type: 'b'}));
+node.push(new Node({type: 'c'}));
+node.push(new Node({type: 'd'}));
+console.log(node.nodes.length);
+//=> 4
+node.shift();
+console.log(node.nodes.length);
+//=> 3
+```
+
+### [.remove](index.js#L205)
+
+Remove `node` from `node.nodes`.
+
+**Params**
+
+* `node` **{Object}**
+* `returns` **{Object}**: Returns the removed node.
+
+**Example**
+
+```js
+node.remove(childNode);
+```
+
+### [.find](index.js#L231)
+
+Get the first child node from `node.nodes` that matches the given `type`. If `type` is a number, the child node at that index is returned.
+
+**Params**
+
+* `type` **{String}**
+* `returns` **{Object}**: Returns a child node or undefined.
+
+**Example**
+
+```js
+var child = node.find(1); //<= index of the node to get
+var child = node.find('foo'); //<= node.type of a child node
+var child = node.find(/^(foo|bar)$/); //<= regex to match node.type
+var child = node.find(['foo', 'bar']); //<= array of node.type(s)
+```
+
+### [.isType](index.js#L249)
+
+Return true if the node is the given `type`.
+
+**Params**
+
+* `type` **{String}**
+* `returns` **{Boolean}**
+
+**Example**
+
+```js
+var node = new Node({type: 'bar'});
+cosole.log(node.isType('foo'));          // false
+cosole.log(node.isType(/^(foo|bar)$/));  // true
+cosole.log(node.isType(['foo', 'bar'])); // true
+```
+
+### [.hasType](index.js#L270)
+
+Return true if the `node.nodes` has the given `type`.
+
+**Params**
+
+* `type` **{String}**
+* `returns` **{Boolean}**
+
+**Example**
+
+```js
+var foo = new Node({type: 'foo'});
+var bar = new Node({type: 'bar'});
+foo.push(bar);
+
+cosole.log(foo.hasType('qux'));          // false
+cosole.log(foo.hasType(/^(qux|bar)$/));  // true
+cosole.log(foo.hasType(['qux', 'bar'])); // true
+```
+
+* `returns` **{Array}**
+
+**Example**
+
+```js
+var foo = new Node({type: 'foo'});
+var bar = new Node({type: 'bar'});
+var baz = new Node({type: 'baz'});
+foo.push(bar);
+foo.push(baz);
+
+console.log(bar.siblings.length) // 2
+console.log(baz.siblings.length) // 2
+```
+
+* `returns` **{Number}**
+
+**Example**
+
+```js
+var foo = new Node({type: 'foo'});
+var bar = new Node({type: 'bar'});
+var baz = new Node({type: 'baz'});
+var qux = new Node({type: 'qux'});
+foo.push(bar);
+foo.push(baz);
+foo.unshift(qux);
+
+console.log(bar.index) // 1
+console.log(baz.index) // 2
+console.log(qux.index) // 0
+```
+
+* `returns` **{Object}**
+
+**Example**
+
+```js
+var foo = new Node({type: 'foo'});
+var bar = new Node({type: 'bar'});
+var baz = new Node({type: 'baz'});
+foo.push(bar);
+foo.push(baz);
+
+console.log(baz.prev.type) // 'bar'
+```
+
+* `returns` **{Object}**
+
+**Example**
+
+```js
+var foo = new Node({type: 'foo'});
+var bar = new Node({type: 'bar'});
+var baz = new Node({type: 'baz'});
+foo.push(bar);
+foo.push(baz);
+
+console.log(bar.siblings.length) // 2
+console.log(baz.siblings.length) // 2
+```
+
+* `returns` **{Object}**: The first node, or undefiend
+
+**Example**
+
+```js
+var foo = new Node({type: 'foo'});
+var bar = new Node({type: 'bar'});
+var baz = new Node({type: 'baz'});
+var qux = new Node({type: 'qux'});
+foo.push(bar);
+foo.push(baz);
+foo.push(qux);
+
+console.log(foo.first.type) // 'bar'
+```
+
+* `returns` **{Object}**: The last node, or undefiend
+
+**Example**
+
+```js
+var foo = new Node({type: 'foo'});
+var bar = new Node({type: 'bar'});
+var baz = new Node({type: 'baz'});
+var qux = new Node({type: 'qux'});
+foo.push(bar);
+foo.push(baz);
+foo.push(qux);
+
+console.log(foo.last.type) // 'qux'
+```
+
+* `returns` **{Object}**: The last node, or undefiend
+
+**Example**
+
+```js
+var foo = new Node({type: 'foo'});
+var bar = new Node({type: 'bar'});
+var baz = new Node({type: 'baz'});
+var qux = new Node({type: 'qux'});
+foo.push(bar);
+foo.push(baz);
+foo.push(qux);
+
+console.log(foo.last.type) // 'qux'
+```
+
+## Release history
+
+Changelog entries are classified using the following labels from [keep-a-changelog](https://github.com/olivierlacan/keep-a-changelog):
+
+* `added`: for new features
+* `changed`: for changes in existing functionality
+* `deprecated`: for once-stable features removed in upcoming releases
+* `removed`: for deprecated features removed in this release
+* `fixed`: for any bug fixes
+
+Custom labels used in this changelog:
+
+* `dependencies`: bumps dependencies
+* `housekeeping`: code re-organization, minor edits, or other changes that don't fit in one of the other categories.
+
+### [2.0.0] - 2017-05-01
+
+**Changed**
+
+* `.unshiftNode` was renamed to [.unshift](#unshift)
+* `.pushNode` was renamed to [.push](#push)
+* `.getNode` was renamed to [.find](#find)
+
+**Added**
+
+* [.isNode](#isNode)
+* [.isEmpty](#isEmpty)
+* [.pop](#pop)
+* [.shift](#shift)
+* [.remove](#remove)
+
+### [0.1.0]
+
+First release.
+
+## About
+
+### Related projects
+
+* [breakdance](https://www.npmjs.com/package/breakdance): Breakdance is a node.js library for converting HTML to markdown. Highly pluggable, flexible and easy… [more](http://breakdance.io) | [homepage](http://breakdance.io "Breakdance is a node.js library for converting HTML to markdown. Highly pluggable, flexible and easy to use. It's time for your markup to get down.")
+* [snapdragon-capture](https://www.npmjs.com/package/snapdragon-capture): Snapdragon plugin that adds a capture method to the parser instance. | [homepage](https://github.com/jonschlinkert/snapdragon-capture "Snapdragon plugin that adds a capture method to the parser instance.")
+* [snapdragon-cheerio](https://www.npmjs.com/package/snapdragon-cheerio): Snapdragon plugin for converting a cheerio AST to a snapdragon AST. | [homepage](https://github.com/jonschlinkert/snapdragon-cheerio "Snapdragon plugin for converting a cheerio AST to a snapdragon AST.")
+* [snapdragon-util](https://www.npmjs.com/package/snapdragon-util): Utilities for the snapdragon parser/compiler. | [homepage](https://github.com/jonschlinkert/snapdragon-util "Utilities for the snapdragon parser/compiler.")
+* [snapdragon](https://www.npmjs.com/package/snapdragon): Easy-to-use plugin system for creating powerful, fast and versatile parsers and compilers, with built-in source-map… [more](https://github.com/jonschlinkert/snapdragon) | [homepage](https://github.com/jonschlinkert/snapdragon "Easy-to-use plugin system for creating powerful, fast and versatile parsers and compilers, with built-in source-map support.")
+
+### Contributing
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
+
+Please read the [contributing guide](.github/contributing.md) for advice on opening issues, pull requests, and coding standards.
+
+### Building docs
+
+_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
+
+To generate the readme, run the following command:
+
+```sh
+$ npm install -g verbose/verb#dev verb-generate-readme && verb
+```
+
+### Running tests
+
+Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
+
+```sh
+$ npm install && npm test
+```
+
+### Author
+
+**Jon Schlinkert**
+
+* [github/jonschlinkert](https://github.com/jonschlinkert)
+* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
+
+### License
+
+Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
+Released under the [MIT License](LICENSE).
+
+***
+
+_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on June 25, 2017._
\ No newline at end of file