Readme.md

Javascript #router. Features:

• Just 70 lines of code.
• Router scope can be bound to any object (default window); just change first parameter
• Triggers custom DOM (Level 2) events on window.document.
• IE 9+, FF, and Webkit based browsers [Tested only in Chrome and FF].

main.js

window.document.addEventListener("route.changed", function (e) {
  console.log(e.data.route, "------", e.data.params);
}, false);

Router.map("/foo", "route.changed");
Router.map("/foo/(bar-map)", "route.changed");
Router.map("/foo/(bar)/name", function (e){
  console.log("Direct callback", e);
});

Router.start();

router.js

/*
Copyright (c) 2013 Zohaib Sibte Hassan

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
(function($, win) {
  var Routes = [];
  var doc = win.document;
  
  function fireCustomEvent(name, data) {
    var evt = doc.createEvent("HTMLEvents");
    evt.initEvent(name, true, true ); // event type,bubbling,cancelable
    evt.data = data;
    return !doc.dispatchEvent(evt);
  }

  function hashChange() {
    var url = (win.location.hash || "#").slice(1);
    $.Router.match(url);
  }

  $.Router = {
    map: function (r, e) {
      // Escape anything except () and replace (name) with (.+)
      var es_tmp = r.replace(/[-[\]{}*+?.,\\^$|#\s]/g, "\\$&").replace(/\([^\)]+\)/g, "([^/]+)");
      var r_exp = new RegExp("^"+es_tmp+"$", "g");
      
      // Save names and routes under with expression and variable names
      Routes.push({
        exp: r_exp,
        names: r_exp.exec(r).slice(1),
        event: e
      });
    },
    
    match: function (r) {
      for(var i in Routes) {
        var rout = Routes[i];
        
        if (r.match(rout.exp)){
          var params = {};
          info = rout.exp.exec(r).slice(1);
          for(var k in info) {
            params[rout.names[k].replace(/[()]/g, "")] = info[k];
          }
                                         
          if(typeof rout.event === 'function') {
            rout.event({data: {params: params, route: r}});
          }else if( typeof rout.event === 'string') {
            fireCustomEvent(rout.event, {params: params, route: r});
          }
        }
      }
    },

    start: function() {
      if (window.addEventListener) {
        window.addEventListener("hashchange", hashChange, false);
      }
      else if (window.attachEvent) {
        window.attachEvent("onhashchange", hashChange);    
      }
      hashChange(); // Call first time for loading first URL
    },

    stop: function() {
      if (window.removeEventListener) {
          window.removeEventListener("hashchange", hashChange, false);
        }
        else if (window.attachEvent) {
          window.detachEvent("onhashchange", hashChange);    
        }
      }
  };
})(window, window);