simple namespaced events in coffeescript

gistfile1.coffee

match = require 'minimatch'
_ = require 'underscore'

class Events
    constructor: ->
        @_events = [];        
    on: (evt, handler = _.i, scope = @) ->
        @_events.push {evt, handler, scope};@
    fire: (evt, args...) ->
        _.each @_events, (spec) =>
            if match evt, spec.evt then spec.handler.apply spec.scope, [{evt,_evt:spec.evt}].concat args;@


# simple handler 
_h = (e) ->
    console.log "matched #{e._evt} for evt #{e.evt}"

x = new Events

x.on 'a:*', _h
x.on '*', _h
x.on '*:b', _h
x.on '*:b:*', _h

# fire a bunch of events
x.fire 'a'
x.fire 'a:b'
x.fire 'a:b:c'