How to use postcss-css-variables - 2 common examples

function updateProcessor(settings) {
	settings = settings || {};

	playgroundProcessor = postcss()
		.use(cssvariables(settings.get('postcss-css-variables').toObject()));

	// Whenever the plugin option updates,
	// we need to update the output
	updateOutput();
}

import events from 'events';
let EventEmitter = events.EventEmitter;


import postcss from 'postcss';
import cssvariables from 'postcss-css-variables';


let CHANGE_EVENT = 'CHANGE_EVENT';



let keyboardActionStream = assign({}, EventEmitter.prototype);

let playgroundProcessor = postcss()
	.use(cssvariables());

let postcssUnprocessedInputText = '';
let processingResult = Immutable.Map({
	input: '',
	output: '',
	error: null
});


let PlaygroundStore = assign({}, EventEmitter.prototype, {

	getKeyboardActionStream: function() {
		return keyboardActionStream;
	},