patterns.js

/* globals define */

define(function(){
  'use strict';
  var REGISTERED = {};

  var register = function(name, config){
    REGISTERED[name] = config;
  };

  var scan = function(baseDoc){
    if(!baseDoc){
      baseDoc = document;
    }
    for(var patternName in REGISTERED){
      var pattern = REGISTERED[patternName];
      baseDoc.querySelectorAll(pattern.selector).forEach(function(el){ // jshint ignore:line
        if(el.patternInstance){
          return;
        }
        el.patternInstance = pattern.init(el);
      });
    }
  };

  var get = function(name){
    return REGISTERED[name];
  };
  return {
    register: register,
    scan: scan,
    get: get
  };
});

Awesome implementation of the Patternslib scanner! If you don't need inside-out pattern initialization and options parsing, this is it.

This is the original implementation, by the way: https://github.com/Patternslib/Patterns/blob/master/src/core/registry.js