JosePedroDias

var printStackTrace = function(msg) {
    try {
        var ex = new Error(msg);
        console.log(ex);
    } catch (ex) {}
};

JosePedroDias

window.jsonpCbs = {};

var jsonp = function(uri, cb) {
	var key = 'cb' + Math.floor( Math.random() * 100000 );

	var cb2 = function() {
		delete window.jsonpCbs[key];
		cb.apply(null, arguments);
	};

JosePedroDias

var ajax = function(uri, cb) {
	var xhr = new XMLHttpRequest();
	//xhr.withCredentials = true; // uncomment to send cookies and stuff
	xhr.open('POST', uri, true); // GET OR POST...
	var cbInner = function() {
		if (xhr.readyState === 4 && xhr.status === 200) {
			return cb(null, JSON.parse(xhr.response));
		}
		cb('error requesting ' + uri);
	};

JosePedroDias

var functionWithCallbackWorkflow = function(arg1, arg2, cb) {
    try {
        // DO STUFF, generating res
    } catch (ex) {
        return cb(ex);
    }
    cb(null, res);
};

JosePedroDias

(function(context) {
  'use strict';

  var modName = 'stuff'; // used only if mod is a function and no CommonJS or AMD supported
  
  // define your module here... can be a function or an object
  var mod = {};

  // export
  if (typeof module === 'object' && module.exports) { // CommonJS

JosePedroDias

var minifyCss = function(s) {
    s = s.replace('\n',       '');  // remove newlines
    s = s.replace(/\s+/g,     ' '); // several whitespace to 1 spacebar
    s = s.replace(/\s*([:;,{}])\s*/g, '$1'); // strips whitespace around :;,{} characters
    s = s.replace(/\/\*(.|[\r\n])*?\*\//g, ''); // uses non-greedy matching *? to remove comments
    return s;
};

JosePedroDias

// https://github.com/learnboost/node-canvas
// https://github.com/LearnBoost/node-canvas/wiki
// sudo apt-get install libcairo2-dev
// npm install canvas

var http = require('http');
var url = require('url');
var Canvas = require('canvas');

// http://stage.sl.pt:8080/?t=hi%20there

JosePedroDias

'\n'.charCodeAt(0);      // 10
String.fromCharCode(10); // '\n'

JosePedroDias

var parseXSV = function(str, toObjects, sep) {
    if (!sep) { sep = '\t'; }

    var chars = str.split('');

    var lst = [];
    var elem = [];
    var field = [];
    var inComplexField = false;

JosePedroDias

/**
 * serves media files in the directory.
 * by default won't refresh on file changes, use nodemon if you want that behavior
 * 2014, jose.pedro.dias@gmail.com
 */



var http = require('http'),
    fs   = require('fs'),