* Helper functions

* Utility functions

* Class for top level (`core`) parser rules * * @api private

* Block Parser class * * @api private

* Inline Parser class. Note that link validation is stricter * in Remarkable than what is specified by CommonMark. If you * want to change this you

* The main `Remarkable` class. Create an instance of * `Remarkable` with a `preset` and/or `options`. * * @param {String} `preset` If no preset is

* Renderer class. Renders HTML and exposes `rules` to allow * local modifications.

* Ruler is a helper class for building responsibility chains from * parse rules. It allows: * * - easy stack rules chains * - getting main cha

* The `StateCore` class manages state. * * @param {Object} `instance` Remarkable instance * @param {String} `str` Markdown string * @param {Object