text: const md = require('./parse/markdown/index'),
      parse = require('./parse/index')
  
  module.exports = (str,type,option)=>{
      option = option || {};
      let result;
      switch (type) {
          case 'markdown':
              result = parse(md(str),option);
          break;
          case 'html':
              result = parse(str,option);
          break;
          default:
              throw new Error('Invalid type, only markdown and html are supported');
          break;
      };
      return result;
  };
  