cogear/lib/utils/parser.js

Cogear.JS – modern static websites generator (Node.JS/Webpack)

const marked = require('marked');
const pug = require('pug');
const ejs = require('ejs');
const handlebars = require('handlebars');
const path = require('path');
const fs = require('fs');

class Parser {
  constructor(){
    this.files = [];
  }
  /**
		 * Parse content based on file extension
		 * 
		 * Example: 
		 * let content = parser(file,content,options)
		 * 
		 * @param {String} file 
		 * @param {String} content optional 
		 * @param {Object} vars optional
		 */
  async render(content,vars={}){
    let data = {
      file: null,
      content: content || '',
      vars: vars
    };
    await cogear.emit('parse.before',data);
    switch (data.vars.format) {
    case '.md':
      data.parsedContent = marked(data.content,data.vars);
      break;
    case '.pug':
      data.parsedContent = pug.render(data.content,data.vars);
      break;
    case '.hbs':
      data.parsedContent = handlebars.compile(data.content)(data.vars);
      break;
    case '.html':
    case '.ejs':
    default:
      data.parsedContent = ejs.render(data.content, data.vars);
    }
    await cogear.emit('parse.after',data);
    return data.parsedContent;

  }
  async renderFile(file,vars = {}){
    let data = {
      file: file,
      content: null,
      vars: vars
    };
    await cogear.emit('parse.before',data);

    switch (path.parse(file).ext) {
    case '.md':
      data.parsedContent = marked(fs.readFileSync(data.file,'utf-8'));
      break;
    case '.pug':
      data.parsedContent = pug.renderFile(data.file, data.vars);
      break;
    case '.hbs':
      data.parsedContent = handlebars.compile(fs.readFileSync(data.file,'utf-8'))(data.vars);
      break;
    case '.html':
    case '.ejs':
    default:
      data.parsedContent = ejs.renderFile(data.file, data.vars);
    }
    await cogear.emit('parse.after',data);
    return data.parsedContent;
  }
}

module.exports = () => {
  return new Parser();
};