xops-pat/app/helpers/markdownHelper.js

Procedure generator for on space operations

#!/usr/bin/env node
/**
 * This helper converts markdown to html.
 */


'use strict';

const showdown = require('showdown');
const wiky = require('wiky');

/**
 * Convert markdown to HTML and replace special indicators (like {{CHECKBOX}})
 * with unicode symbols
 *
 * @param   {string} markdown Markdown input
 * @return  {string} HTML with unicode characters, or an empty string if
 *                    an error occurs
 */
exports.convert = function(markdown) {
	var regex;

	if (markdown === null || (typeof markdown !== 'string')) {
		return '';
	}

	//  Find and replace check marks
	markdown = markdown.replace(/{{CHECK}}/gi, '✓');

	//  Find and replace check boxes
	markdown = markdown.replace(/{{CHECKBOX}}/gi, '❏');
	markdown = markdown.replace(/{{CHECK BOX}}/gi, '❏');

	// TODO: Why does checmkark actually mean checkbox?
	markdown = markdown.replace(/{{CHECKMARK}}/gi, '❏');
	markdown = markdown.replace(/{{CHECK MARK}}/gi, '❏');

	//  Find and replace emphasis markdown?
	if (markdown.includes("'''")) {
		regex = /(['])+/gi;
		markdown = markdown.replace(regex, '*');
	}
	if (markdown.includes('**')) {
		regex = /([*])+/gi;
		markdown = markdown.replace(regex, '*');
	}

	const text = wiky.toHtml(markdown);

	return new showdown.Converter().makeHtml(text);
};