Riot.js full router

gistfile1.js

(function() {
  var routes = [];

  function on(route, fn) {
    var keys = ['match'];

    route = route.replace(/[\/\=\?\$\^]/g, '\\$&').replace(/\{(\w+)\}/g, function(match, key) {
      keys.push(key);
      return '(\\w+)';
    });

    routes.push({ re: RegExp(route), keys: keys, fn: fn });
  }

  function emit(path) {
    for (var i = 0, route, match; (route = routes[i]); i++) {
      match = route.re.exec(path);
      if (match) {
        for (var j = 0, params = { path: path }, val; (val = match[j]); j++) {
          params[route.keys[j]] = val;
        }
        route.fn(params);
      }
    }
  }

  riot.route = function(arg, fn) {
    fn ? on(arg, fn) : typeof arg == 'function' ? on(".*", arg) : emit(arg);
    return riot;
  };

})();

Besides those comments, It was cool that you used an array instead of an object for the routes that simplified a lot the only down side is because all routes will need to loop on the list there is no more O(1) in the best case scenario, but that is not an issue because the most routes will have params or wildcard.

wow i noticed that issue 3 wont happen because you will match all routes... I really like that ;)