Psr4 implementation NodeJS

eg.js

psr4.add('Gabrieljmj\\Blog\\', 'modules/gabrieljmj/blog/');
psr4.add('Gabrieljmj\\Blog\\Controller\\', 'modules/gabrieljmj/blog/constrollers/');
var postsController = psr4.use('Gabrieljmj\\Blog\\Posts'); //require('modules/gabrieljmj/blog/Posts')
var postsController = psr4.use('Gabrieljmj\\Blog\\Controller\\Posts'); //require('modules/gabrieljmj/blog/controllers/posts')

psr4.js

function psr4 () {
}

psr4.namespaces = [];

psr4.add = function (namespace, path) {
    this.namespaces.push({namespace: namespace, path: path});
}

psr4.use = function (module) {
    var possibles = [];

    this.namespaces.forEach(function (ns) {
        if (module.substr(0, ns.namespace.length) == ns.namespace) {
            possibles.push(ns);
        }
    });

    if (possibles.length > 0) {
        possibles.sort(function (a, b) {
            return b.namespace.length - a.namespace.length;
        });
        var ns = possibles[0];
        var newpath = ns.path + module.substr(ns.namespace.length).replace('\\', '/');
        return require(newpath);
    }
}

module.exports = ps4;