!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.O=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){

var e = _dereq_('./lib/odyssey/story');
e.Actions = _dereq_('./lib/odyssey/actions');
e.Triggers = _dereq_('./lib/odyssey/triggers');
e.Core = _dereq_('./lib/odyssey/core');
e.Template = _dereq_('./lib/odyssey/template');
e.UI = _dereq_('./lib/odyssey/ui');
_dereq_('./lib/odyssey/util');

for (var k in e.Actions) {
  e[k] = e.Actions[k];
}
for (var k in e.Triggers) {
  e[k] = e.Triggers[k];
}
module.exports = e;

},{"./lib/odyssey/actions":5,"./lib/odyssey/core":13,"./lib/odyssey/story":14,"./lib/odyssey/template":15,"./lib/odyssey/triggers":17,"./lib/odyssey/ui":23,"./lib/odyssey/util":26}],2:[function(_dereq_,module,exports){

var Action = _dereq_('../story').Action;


function CSS(el) {

  function _css() {};

  _css.toggleClass = function(cl) {
    return Action(function() {
      el.toggleClass(cl);
    });
  };

  _css.addClass = function(cl) {
    return Action(function() {
      el.addClass(cl);
    });
  };

  _css.removeClass = function(cl) {
    return Action(function() {
      el.removeClass(cl);
    });
  };

  return _css;

}

module.exports = CSS;

},{"../story":14}],3:[function(_dereq_,module,exports){

var Action = _dereq_('../story').Action;
//
// debug action
// prints information about current state
//
function Debug() {
  function _debug() {};

  _debug.log = function(_) {

    return Action({

      enter: function() {
        console.log("STATE =>", _, arguments);
      },

      update: function() {
        console.log("STATE (.)", _, arguments);
      },

      exit: function() {
        console.log("STATE <=", _, arguments);
      }

    });

  };

  return _debug;
}

module.exports = Debug;

},{"../story":14}],4:[function(_dereq_,module,exports){

var Action = _dereq_('../story').Action;

var Audio = function(el){
  return {
    play: function() {
      return Action(function() {
        el.play()
      });
    },
    pause: function() {
      return Action(function() {
        el.pause()
      });
    },
    setCurrentTime: function(t) {
      return Action(function() {
        el.currentTime = t;
      });
    }
	}

};
module.exports = Audio;


},{"../story":14}],5:[function(_dereq_,module,exports){

module.exports = {
  Sleep: _dereq_('./sleep'),
  Debug: _dereq_('./debug'),
  Location: _dereq_('./location'),
  Audio: _dereq_('./html5audio'),
  Leaflet: {
    Marker: _dereq_('./leaflet/marker'),
    Map: _dereq_('./leaflet/map'),
    Popup: _dereq_('./leaflet/popup')
  },
  CSS: _dereq_('./css'),
  Slides: _dereq_('./slides'),
  MiniProgressBar: _dereq_('./mini_progressbar')
};

},{"./css":2,"./debug":3,"./html5audio":4,"./leaflet/map":6,"./leaflet/marker":7,"./leaflet/popup":8,"./location":9,"./mini_progressbar":10,"./sleep":11,"./slides":12}],6:[function(_dereq_,module,exports){

var Action = _dereq_('../../story').Action;

function MapActions(map) {

  function _map() {}

  // helper method to translate leaflet methods to actions
  function leaflet_method(name) {
    _map[name] = function() {
      var args = arguments;
      return Action(function() {
        map[name].apply(map, args);
      });
    };
  }

  function leaflet_move_method(name, signal) {
    _map[name] = function() {
      var args = arguments;
      return Action({
        enter: function() {
          this.moveEnd = function() {
            map.off(signal, this.moveEnd, this);
            this.finish();
          };
          map.on(signal, this.moveEnd, this);
          map[name].apply(map, args);
          return true;
        },

        clear: function() {
          map.off(signal, this.moveEnd, this);
        }
      });
    };
  }

  _map.moveLinearTo = function(from, to, options) {
    var opt = options || { k: 2 };
    var animationTimer;
    var posTarget;
    var delta = 20;

    // leaflet map animation is not being used because
    // when the action is updated the map just stop the animatin
    // and start again
    // the animtion should be smooth
    return Action({

      enter: function () {
        posTarget = map.project(map.getCenter());
        animationTimer = setInterval(function() {
          var c = map.project(map.getCenter());
          var px = c.x + (posTarget.x - c.x)*delta*0.001* opt.k;
          var py = c.y + (posTarget.y - c.y)*delta*0.001* opt.k;
          map.panTo(map.unproject(L.point(px, py)), { animate: false });
        }, delta);
      },

      update: function (t) {
        var p0 = map.project(from);
        var p1 = map.project(to);
        posTarget = p0.add(p1.subtract(p0).multiplyBy(t));
      },

      exit: function() {
        clearInterval(animationTimer);
      },

      clean: function() {
        this.exit();
      }

    });
  };


  // leaflet methods
  leaflet_move_method('panTo', 'moveend');
  leaflet_move_method('setView', 'moveend');
  leaflet_move_method('setZoom', 'zoomend');

  return _map;
}


if (typeof window.L !== 'undefined') {
  L.Map.addInitHook(function () {
    this.actions = MapActions(this);
  });
}
module.exports = MapActions;


},{"../../story":14}],7:[function(_dereq_,module,exports){

var Action = _dereq_('../../story').Action;

function MarkerActions(marker) {

  function _marker() {}

  _marker.addTo = function(map) {
    return Action(function() {
      marker.addTo(map);
    });
  };

  _marker.addRemove = function(map) {
    return Action({
      enter: function() {
        marker.addTo(map);
      },
      exit: function() {
        map.removeLayer(marker);
      }, 
      clear: function() {
        map.removeLayer(marker);
      }
    });
  };

  _marker.icon = function(iconEnabled, iconDisabled) {
    iconEnabled = L.icon({
      iconUrl: iconEnabled
    });
    iconDisabled = L.icon({
      iconUrl: iconDisabled
    });
    return Action({
      enter: function() {
        marker.setIcon(iconEnabled);
      },
      exit: function() {
        marker.setIcon(iconDisabled);
      },
      clear: function() { }
    });
  }

  return _marker;
}

function PathActions(path) {
  function _path() {};

  _path.toggleStyle = function(styleDisabled, styleEnabled) {
    return Action({
      enter: function() {
        path.setStyle(styleEnabled);
      },
      exit: function() {
        path.setStyle(styleDisabled);
      },
      clear: function() { }
    });
  }

  return _path;
}


if (typeof window.L !== 'undefined') {
  L.Marker.addInitHook(function () {
    this.actions = MarkerActions(this);
  });
  L.Path.addInitHook(function () {
    this.actions = PathActions(this);
  })
}
module.exports = MarkerActions;

//marker.actions.addTo(map);
//addState(, map.actions.moveTo(..).addMarker(m)

},{"../../story":14}],8:[function(_dereq_,module,exports){

/**
directional popup allows to create popups in the left and the right of a point,
not only on the top.

Same api than L.popup but you can spcify ``potision`` to 'left' or 'right'

*/

var Action = _dereq_('../../story').Action;


if (typeof window.L !== 'undefined') {

var DirectionalPopup = L.Popup.extend({
    _updatePosition: function() {
        L.Popup.prototype._updatePosition.call(this);
        var offset = L.point(this.options.offset),
            animated = this._animated;

        switch(this.options.position) {
          case 'left':
            this._container.style.bottom = 'auto';
            this._container.style.left = 'auto';
            this._container.style.right = offset.x + (animated ? 0 : pos.x) + "px";
            break;
          case 'right':
            this._container.style.bottom = 'auto';
            this._container.style.left =  offset.x + "px";
            break;
      }
    }
});

L.DirectionalPopup = DirectionalPopup;
L.directionalPopup = function (options, source) {
  return new L.DirectionalPopup(options, source);
};

function PopupActions(popup) {

  function _popup() {}

  // helper method to translate leaflet methods to actions
  function leaflet_method(name) {
    _popup[name] = function() {
      var args = arguments;
      return Action(function() {
        popup[name].apply(popup, args);
      });
    };
  }

  // leaflet methods
  leaflet_method('openOn');
  _popup.openClose = function(map) {
    if (!map) {
      throw new Error("openClose gets map as first param");
    }
    return Action({
      enter: function() {
        popup.openOn(map);
      },

      exit: function() {
        map.closePopup(popup);
      }

    });
  };

  return _popup;
}


  L.Popup.addInitHook(function () {
    this.actions = PopupActions(this);
  });
}


},{"../../story":14}],9:[function(_dereq_,module,exports){

var Action = _dereq_('../story').Action;

var loc = window.location;
var Location = {

  // changes the browser url hash
  changeHash: function(hash) {
    if (hash === undefined) throw new Error("hash should be a string");
    return Action(function() {
      loc.hash = hash;
    });
  }

};


module.exports = Location;

},{"../story":14}],10:[function(_dereq_,module,exports){

var Action = _dereq_('../story').Action;

/**
 * mini progress var adds a small line to the top of the browser
 * and moves according to story progress
 * usage:
 * var pg = MiniProgressBar()
 * story.addAction(trigger, pg.percent(10)) //goes to 10%
 */

var MiniProgressBar = function(el) {

  var defaultStyle =  {
    position: 'fixed',
    left: 0,
    top: 0,
    height: '3px',
    display: 'inline-block',
    background: '#ff7373',
    'z-index': 2
  };

  var pg = {};

  // create an element and apply default style
  var div = document.createElement('div');
  div.setAttribute('class', 'oddysey-miniprogressbar');
  for (var s in defaultStyle) {
    div.style[s] = defaultStyle[s];
  }

  // append to element or to tge body
  (el || document.body).appendChild(div);
  
  /**
   * returns an action that moves the percentaje bar to the specified one
   */
  pg.percent = function(p) {
    return Action(function() {
      div.style.width = p + "%";
    });
  };

  return pg;
}

module.exports = MiniProgressBar;

},{"../story":14}],11:[function(_dereq_,module,exports){

var Action = _dereq_('../story').Action;

function Sleep(ms) {

  return Action({

    enter: function() {
      setTimeout(this.finish, ms);
      return true;
    }

  });
}

module.exports = Sleep;


},{"../story":14}],12:[function(_dereq_,module,exports){

var Action = _dereq_('../story').Action;
var Core = _dereq_('../core');
var classList = _dereq_('../util/classList');

function Slides(el) {


  function slides() {};

  function _activate(idx) {
    var slideElements = Core.getElement(el).children;
    for(var i = 0; i < slideElements.length; ++i) {
      if (i === idx) {
        slideElements[i].classList.add("selected", "selected_slide");
      } else {
        slideElements[i].classList.remove("selected", "selected_slide");
      }
    }
  }

  slides.activate = function(i) {
    return Action(function() {
      _activate(i);
    });
  };

  _activate(-1);

  return slides;

}

module.exports = Slides;
},{"../core":13,"../story":14,"../util/classList":24}],13:[function(_dereq_,module,exports){

function getElement(el) {
  if(typeof jQuery !== 'undefined') {
    if (el instanceof jQuery) {
      return el[0];
    } else if(typeof el === 'string') {
      if (el[0] === '#' || el[0] === '.') {
        return getElement($(el));
      }
    }
  } 
  if (el instanceof NodeList || el instanceof HTMLCollection) {
    return el[0];
  } else if (el instanceof Element) {
    return el;
  }
  return document.getElementById(el);
}

module.exports = {
  getElement: getElement
};

},{}],14:[function(_dereq_,module,exports){

_dereq_('../../vendor/d3.custom');

function Story() {

  var triggers = [];
  var events = [];
  var currentState = null;
  var prevState = null;

  function story(t) {
  }

  // event non attached to states
  story.addEvent = function(trigger, action) {
    trigger._story(story, function() {
      action.enter();
    });
    events.push({
      a: trigger,
      b: action
    });
    return story;
  };

  story.clear = function() {
    var all = triggers.concat(events);
    for(var i = 0; i < all.length; ++i) {
      var a = all[i];
      a.a.story = null;
      a.a.trigger = null;
      a.a.clear && a.a.clear();
      a.b.clear && a.b.clear();
    }

    triggers = [];
    events = [];
    currentState = null;
    prevState = null;

  };

  // go to state index
  story.go = function(index, opts) {
    opts = opts || {};
    if(index < 0 && index > triggers.length) {
      throw new Error("index should be less than states length");
    }
    if (story.state() !== index) {

      if (opts.reverse) {
        var a = triggers[index].a;
        if (a.reverse) {
          a.reverse();
        }
      }
      // current state
      story.state(index);

      // raise exit
      if (prevState !== null) {
        var prev = triggers[prevState].b;
        if (prev.exit) {
          prev.exit();
        }
      }

      var b = triggers[index].b;

      // enter in current state
      b.enter();
    }

  };

  story.addState = function(a, b, opts) {
    var i = triggers.length;

    if(!a || !b) {
      throw new Error("action and trigger must be defined");
    }

    triggers.push({
      a: a,
      b: b,
      opts: opts
    });

    a._story(story, function() {
      story.go(i);
    });

    return story;
  };

  story.addLinearState = function(a, b, opts) {
    var j;
    var i = triggers.length;

    triggers.push({
      a: a,
      b: b,
      opts: opts
    });

    a._story(story, function(t) {
      if (story.state() !== i) {
        story.go(i);
      } else {
        if (b.update) {
          b.update(t);
        }
      }
    });

    return story;
  };

  story.state = function(_) {
    if(_ === undefined) return currentState;
    prevState = currentState;
    currentState = _;
    return;
  };

  return story;


}


//
// basic action
// t can be a function or an object
// if is a function it's called on ``enter`` event
// if t is an object with enter/exit/update methods
// they're called on state changes
function Action(t) {

  var evt = d3.dispatch('finish');
  var action = t;
  if (t.enter === undefined && !(typeof(t) === 'function' && t.prototype.enter !== undefined)) {
    action = {
      enter: t
    }
  }

  return d3.rebind(action, evt, 'on', 'finish');

}

function Trigger(t) {
  t = t || {}
  t._story = function(story, trigger) {
    this.trigger = trigger;
    this.story = story;
  };

  t.then = function(t, context) {
    this.trigger = function() {
      if (t.trigger) {
        t.trigger();
        if (t.reverse) t.reverse();
      } else if (t.call) {
        t.call(context || self);
      } else {
        throw new Error("then first param should be either function or trigger");
      }
    };
  };
  return t;
}

///
// executes actions in parallel
// usage:
//    Parallel(action1, action2, action3)
//
// raises finish when all the tasks has been completed
//
function Parallel () {
  var actions = Array.prototype.slice.call(arguments);
  var tasksLeft;

  function _Parallel() {}

  function start() {
    tasksLeft = actions.length;
  }

  function done() {
    if (--tasksLeft === 0) {
      _Parallel.finish();
    }
  }

  function wait(action) {
    action.on('finish.parallel', function() {
      action.on('finish.parallel', null);
      done();
    });
  }


  _Parallel.enter = function() {
    start();
    for(var i = 0, len = actions.length; i < len; ++i) {
      var a = actions[i];
      if (a.enter) {
        if (a.enter()) {
          wait(a);
        } else {
          done();
        }
      }
    }
  };

  _Parallel.exit = function() {
    start();
    for(var i = actions.length - 1; i >= 0; --i) {
      var a = actions[i];
      if (a.exit) {
        if (a.exit()) {
          wait(a);
        } else {
          done();
        }
      }
    }
  };

  _Parallel.clear = function() {
    for(var i = 0, len = actions.length; i < len; ++i) {
      var a = actions[i];
      a.clear && a.clear();
    }
  }

  _Parallel = Action(_Parallel);
  return _Parallel;
}



///
// executes actions serially, waits until the previous task
// is completed to start with the second and so on
// usage:
//    Step(action1, action2, action3)
//
// raises finish when all the tasks has been completed
//
function Step() {

  var actions = Array.prototype.slice.call(arguments);
  var queue;

  function _Step() {}

  function next(method) {
    if (queue.length === 0) {
      _Step.finish();
      return;
    }
    var a = queue.pop();
    if (a.on) {
      a.on('finish.chain', function() {
        a.on('finish.chain', null);
        next(method);
      });
    }
    if (!a[method] || !a[method]()) {
      next(method);
      if(a.on) a.on('finish.chain', null);
    }
  }

  _Step.enter = function() {
    // call enter on each action
    queue = actions.slice().reverse();
    next('enter');
    return true;
  }

  _Step.exit = function() {
    // call exit on each action
    queue = actions.slice();
    next('exit');
    return true;
  }

  _Step.clear = function() {
    for(var i = 0, len = actions.length; i < len; ++i) {
      var a = actions[i];
      a.clear && a.clear();
    }
  }

  _Step = Action(_Step);
  return _Step;
}

// check change between two states and triggers
function Edge(a, b) {
  var s = 0;
  function t() {}
  a._story(null, function() {
    if(s !== 0) {
      t.trigger();
    }
    s = 0;
  });
  b._story(null, function() {
    if(s !== 1) {
      t.trigger();
    }
    s = 1;
  });
  return Trigger(t);
}



module.exports = {
  Story: Story,
  Action: Action,
  Trigger: Trigger,
  Step: Step,
  Parallel: Parallel,
  Edge: Edge
};


},{"../../vendor/d3.custom":32}],15:[function(_dereq_,module,exports){

_dereq_('../../vendor/markdown');
var mapActions = {
    'move map to current position': function() {
      var center = this.map.getCenter()
      return '- center: [' + center.lat.toFixed(4) + ', ' + center.lng.toFixed(4) + ']\n- zoom: ' + this.map.getZoom()
    },
    'show marker at current position': function() {
      var center = this.map.getCenter()
      return 'L.marker([' + center.lat.toFixed(4) + ', ' + center.lng.toFixed(4) + ']).actions.addRemove(S.map)';
    },
    'sleep': function() {
      return "O.Actions.Sleep(1000)";
    }
};

var Template = function(template) {
  var initialized = false;

  function readMessage(event) {
    var msg = JSON.parse(event.data);
    template.editor = true;

    if (!initialized) {
      configureEditor();
      initialized = true;
    }

    function sendMsg(_) {
      event.source.postMessage(JSON.stringify({
        id: msg.id,
        data: _
      }), event.currentTarget ? event.currentTarget.location : event.source.location);
    }

    if (msg.type === 'md') {
      var actions = actionsFromMarkdown(msg.code);
      try {
        template.update(actions);
        sendMsg(null);
      } catch(e) {
        sendMsg(e.message);
      }
    } else if (msg.type === 'actions') {
      var actions = [];
      if (template.map && template.map instanceof L.Map) {
        for (var k in mapActions) {
          actions.push(k);
        }
      }
      if (template.actions) {
        for (var k in template.actions) {
          actions.push(k);
        }
      }
      sendMsg(actions);
    } else if (msg.type === 'get_action') {
      if (msg.code in mapActions) {
        sendMsg(mapActions[msg.code].call(template));
      } else {
        sendMsg(template.actions[msg.code].call(template));
      }
    } else if (msg.type === 'code') {
      sendMsg(eval(msg.code));
    } else if (msg.type === 'change_slide') {
      template.changeSlide && template.changeSlide(msg.slide);
    }
  }

  if (!window.addEventListener) {
    window.attachEvent("message", function load(event) {
      readMessage(event);
    });
  } else {
    window.addEventListener("message", function load(event) {
      readMessage(event);
    });
  }

  template.init(function() { });

  function configureEditor() {
    // add helpers
    if (template.map && template.map instanceof L.Map) {
      new L.CrossHair('//cartodb.github.io/odyssey.js/img/crosshair.png').addTo(template.map);
    }
  }

  window.onload = function() {
    var origin = location.pathname.split('/')[1];

    Template.Storage.load(function(md) {
      template.update(actionsFromMarkdown(md));
    });
  }
};

Template.Storage = {

  save: function(md, template) {
    location.hash = "md/" + template + "/" + btoa(md);
  },

  load: function(done) {
    if (document.getElementById('md_template')) {
      done(document.getElementById('md_template').text);
      return;
    }

    var h = location.hash;
    if (done && h) {
      // #md/template/base_64_markdown
      var tk = h.split('/');
      if (tk[0] === '#md') {
        done(atob(tk.slice(2).join('/')), tk[1]);
      }
    }
  }
};

function Slide(tree, actions, prop) {

  var html;
  var md_tree = tree;
  var properties = prop;

  var action;

  function compile(context) {
    propertiesToActions();
    //sort actions by order
    actions.sort(function(a, b) {
      return a.order - b.order;
    });

    if (!('map' in Array.prototype)) {
      Array.prototype.map= function(mapper, that /*opt*/) {
        var other= new Array(this.length);
        for (var i= 0, n= this.length; i<n; i++)
          if (i in this)
              other[i]= mapper.call(that, this[i], i, this);
        return other;
      };
    }

    action = O.Step.apply(window,
      actions.map(function(a) {
        var o = a.cmd;
        try {
          var f = Function("S", "return " + o + ";");
        } catch (e) {
          throw new Error("error while compiling " + o + ": " + e.message);
        }
        return f(context);
      })
    );
  }

  /*
   * there are special propertues like pos, marker and so 
   * on that should become actions
   */
  function propertiesToActions() {
    for (var k in properties) {
      var prop = properties[k];
      switch (k) {
        case 'center':
          var pos = prop.value;
          if (properties.zoom === undefined) {
            actions.push({
              order: prop.order,
              cmd: 'S.map.actions.panTo([' + pos[0] + ',' + pos[1] + '])'
            });
          } else {
            actions.push({
              order: prop.order,
              cmd: 'S.map.actions.setView([' + pos[0] + ',' + pos[1] + '], ' + properties.zoom.value + ')'
            });
          }
        case 'zoom':
          if (!properties.center) {
            actions.push({
              order: prop.order,
              cmd: 'S.map.actions.setZoom(' + properties.zoom.value+ ')'
            });
          }
      }
    }
  }

  function _slide(context) {
    if (!action) compile(context);
    return action;
  }

  _slide.html = function() {
    if (!html) {
      html = markdown.toHTML(['markdown'].concat(md_tree));
    }
    return html;
  };

  _slide.props = function() {
    return properties || {}
  };

  _slide.get = function(_) {
    return (properties || {})[_];
  }

  return _slide;
}

function trim(x) {
  return x.replace(/^\s+|\s+$/gm,'');
}

var prop_re = /^-([^:]+):(.*)/;
function parseProperties(code) {
  var props = {};
  var lines = code.split('\n');
  for (var i = 0; i < lines.length; ++i) {
    var e = prop_re.exec(lines[i]);
    if (e) {
      try {
      props[trim(e[1])] = JSON.parse(trim(e[2]));
      } catch(e) {
      }
    }
  }
  return props;
}

/**
 * given a markdown parsed tree return a list of slides with
 * html and actions
 */

function md2json(tree) {
  var slide = null;
  var slides = [];
  var globalProperties = {}
  var elements = tree.slice(1);
  for (var i = 0; i < elements.length; ++i) {
    var el = elements[i];
    var add = true;
    if (el[0] === 'header' && el[1].level === 1) {
      if (slide) slides.push(Slide(slide.md_tree, slide.actions, slide.properties));
      slide = {
        md_tree: [],
        html: '',
        actions: [],
        properties: {}
      };
    } else if (el[0] === 'para') {
      // search inline code inside it
      var actions = [];
      for(var j = 1; j < el.length; ++j) {
        var subel = el[j];
        if (subel[0] === "inlinecode") {
          var lines = subel[1].split('\n');

          for (var ln = 0; ln < lines.length; ++ln) {
            var line = lines[ln];
            if (trim(line) !== '') {
              // if matches property, parse it
              if (prop_re.exec(line)) {
                var p = parseProperties(subel[1]);
                var prop = slide ? slide.properties: globalProperties
                for(var k in p) {
                  prop[k] = {
                    order: ln,
                    value: p[k]
                  }
                }
              } else {
                slide && slide.actions.push({
                  cmd: line,
                  order: ln
                });
              }
            }
          }

          // remove from list
          el.splice(j, 1);
          --j;
        }
      }
    }
    add && slide && slide.md_tree.push(el);
  }
  if (slide) slides.push(Slide(slide.md_tree, slide.actions, slide.properties));

  // remove the order for globalProperties
  slides.global = {};
  for(var k in globalProperties) {
    slides.global[k] = globalProperties[k].value;
  }

  return slides;
}


// return a list of Slide objects
function actionsFromMarkdown(md) {
  var md_tree = markdown.parse(md);
  return md2json(md_tree);
}


Template.parseProperties = parseProperties;

module.exports = Template;

},{"../../vendor/markdown":33}],16:[function(_dereq_,module,exports){

var Trigger = _dereq_('../story').Trigger;
var Core = _dereq_('../core');
var Hammer = _dereq_('hammerjs');

function Gestures(el) {

  var gestures = {};
  el = el || document;
  function _hammerEvent(eventName, fnName) {
    gestures[fnName]= function() {
      var t = Trigger({});
      Hammer(el).on(eventName, function() {
        t.trigger();
      });
      return t;
    };
  }

  _hammerEvent('swipeup', 'swipeUp');
  _hammerEvent('swipedown', 'swipeDown');
  _hammerEvent('swipeleft', 'swipeLeft');
  _hammerEvent('swiperight', 'swipeRight');

  return gestures;

}

module.exports = Gestures;

},{"../core":13,"../story":14,"hammerjs":31}],17:[function(_dereq_,module,exports){

module.exports = {
  Scroll: _dereq_('./scroll'),
  Sequential: _dereq_('./sequential'),
  Keys: _dereq_('./keys'),
  Video: _dereq_('./video'),
  Gestures: _dereq_('./gestures')
};

},{"./gestures":16,"./keys":18,"./scroll":19,"./sequential":20,"./video":21}],18:[function(_dereq_,module,exports){

var Trigger = _dereq_('../story').Trigger;
var Core = _dereq_('../core');

/**
 *
 *
 */
function Keys() {

  KEY_LEFT = 37;
  KEY_UP = 38;
  KEY_RIGHT = 39;
  KEY_DOWN = 40;

  var el = document;

  var keys = {};

  function listenForKey(el, k, callback) {
    function keyDown(e) {
      e = e || window.event;

       var code = e.keyCode;
       if (code === k) {
         callback();
         e.preventDefault ? e.preventDefault() : e.returnValue = false;
         e.stopPropagation ? e.stopPropagation() : e.cancelBubble = true;
       }
    }

    if (!window.addEventListener) {
      el.attachEvent("onkeydown", function load(event) {
        keyDown(event);
      });
    } else {
      el.addEventListener("keydown", function load(event) {
        keyDown(event);
      });
    }
  }

  keys.left = function() {
    var t = Trigger({});
    listenForKey(el, KEY_LEFT, function() {
      t.trigger();
    });
    return t;
  }

  keys.right = function() {
    var t = Trigger({});
    listenForKey(el, KEY_RIGHT, function() {
      t.trigger();
    });
    return t;
  }

  keys.on = function(element) {
    el = Core.getElement(element);
    return keys;
  }

  return keys;

}

module.exports = Keys;

},{"../core":13,"../story":14}],19:[function(_dereq_,module,exports){

var Trigger = _dereq_('../story').Trigger;
var Core = _dereq_('../core');

function cte(c) { return function() { return c; } }

//TODO: add support for elements != window
function Scroll() {

  var scroller = window;
  var scrolls = [];
  var initialized = false;
  var offset = cte(0);
  var condition = null;

  function scroll() {}

  scroll.reach = function(el) {
    function _reach () {}
    Trigger(_reach);

    _reach.scroll = function(scrollY) {
      var e = Core.getElement(el);
      var bounds = e.getBoundingClientRect();
      var offset = _reach.offset();
      var t = condition(bounds, offset, scrollY);
      if (t !== null && t !== undefined) {
        _reach.trigger(t);
      }
      return _reach;
    };

    _reach.condition = function(_) {
      if (!arguments.length) {
        return condition;
      }
      condition = _;
    }

    /// sets offset in px or % of element
    // offset('50%') offset(100)
    _reach.offset = function(_) {
      if (!arguments.length) {
        return offset();
      }
      if (typeof(_) === 'number') {
        offset = cte(_);
      } else {
        offset = function() {
          //remove %
          var percent = +_.replace('%', '');
          return scroller.innerHeight * percent * 0.01;
        }
      }
      return _reach;
    }

    _reach.reverse = function() {
      var e = document.getElementById(el);
      var bounds = e.getBoundingClientRect();
      var offset = _reach.offset();
      scroller.scrollTo(0, bounds.top - offset);
    };

    _reach.clear = function() {
      unregister(_reach);
    }

    // add to working scrolls
    register(_reach);

    return _reach;
  };

  scroll.within = function(el) {
    var r = scroll.reach(el);
    r.condition(function(bounds, offset) {
      if(bounds.top <= offset && bounds.bottom >= offset) {
        var t = (offset - bounds.top)/(bounds.bottom - bounds.top);
        return t;
      }
    });
    return r;
  };

  scroll.less = function(el, opt) {
    opt = opt || {};
    var r = scroll.reach(el);
    var fixedBoundsTop;
    if (opt.fixed) {
      var e = Core.getElement(el);
      fixedBoundsTop = scroller.scrollY + e.getBoundingClientRect().top;
    }
    r.condition(function(bounds, offset, scrollY) {
      var t = opt.fixed ? fixedBoundsTop: bounds.top;
      var o = opt.fixed ? scrollY: offset;
      if(t >= o) {
        return 0;
      }
    });
    return r;
  };

  scroll.greater = function(el, opt) {
    opt = opt || {};
    var r = scroll.reach(el);
    var fixedBoundsTop;
    if (opt.fixed) {
      var e = Core.getElement(el);
      fixedBoundsTop = scroller.scrollY + e.getBoundingClientRect().top;
    }
    r.condition(function(bounds, offset, scrollY) {
      var t = opt.fixed ? fixedBoundsTop: bounds.top;
      var o = opt.fixed ? scrollY: offset;
      if(t <= o) {
        return 0;
      }
    });
    return r;
  };

  function register(s) {
    scrolls.push(s);
    initScroll();
  }

  function unregister(s) {
    var i = scrolls.indexOf(s);
    if (i >= 0) {
      scrolls.splice(i, 1);
    }
  }

  function initScroll() {
    if (!initialized) {
      initialized = true;

      if (!Array.prototype.forEach) {

        Array.prototype.forEach = function (callback, thisArg) {

          var T, k;

          if (this == null) {
            throw new TypeError(" this is null or not defined");
          }

          // 1. Let O be the result of calling ToObject passing the |this| value as the argument.
          var O = Object(this);

          // 2. Let lenValue be the result of calling the Get internal method of O with the argument "length".
          // 3. Let len be ToUint32(lenValue).
          var len = O.length >>> 0;

          // 4. If IsCallable(callback) is false, throw a TypeError exception.
          // See: http://es5.github.com/#x9.11
          if (typeof callback !== "function") {
            throw new TypeError(callback + " is not a function");
          }

          // 5. If thisArg was supplied, let T be thisArg; else let T be undefined.
          if (thisArg) {
            T = thisArg;
          }

          // 6. Let k be 0
          k = 0;

          // 7. Repeat, while k < len
          while (k < len) {

            var kValue;

            // a. Let Pk be ToString(k).
            //   This is implicit for LHS operands of the in operator
            // b. Let kPresent be the result of calling the HasProperty internal method of O with argument Pk.
            //   This step can be combined with c
            // c. If kPresent is true, then
            if (k in O) {

              // i. Let kValue be the result of calling the Get internal method of O with argument Pk.
              kValue = O[k];

              // ii. Call the Call internal method of callback with T as the this value and
              // argument list containing kValue, k, and O.
              callback.call(T, kValue, k, O);
            }
            // d. Increase k by 1.
            k++;
          }
          // 8. return undefined
        };
      }

      function scrollEach() {
        scrolls.forEach(function(s) {
          s.scroll(window.scrollY);
        });
      }

      if (!window.addEventListener) {
        scroller.attachEvent("onscroll", function load(event) {
          scrollEach();
        });
      } else {
        window.addEventListener("scroll", function load(event) {
          scrollEach();
        });
      }
    }
  }

  return scroll;
}

Scroll._scrolls = [];
module.exports = Scroll;

},{"../core":13,"../story":14}],20:[function(_dereq_,module,exports){

var Trigger = _dereq_('../story').Trigger;

function Sequential() {
  var current = 0;
  var steps = [];
  var max = 0;
  var triggers = {};

  function seq() {}

  function update() {
    for (var i = 0; i < steps.length; ++i) {
      steps[i].check();
    }
  }

  seq.state = seq.step = function(n) {
    if (n in triggers) {
      return triggers[n];
    }
    var t = Trigger({
      check: function() {
        if (n === current && this.trigger) this.trigger();
      },
      reverse: function() {
        current = n;
      }
    });
    max = Math.max(max, n);
    steps.push(t);
    return triggers[n] = t;
  };

  seq.next = function() {
    current += 1;
    if (current > max) {
      current = 0;
    }
    update();
  };

  seq.clear = function() {
    steps = [];
    max = 0;
    current = 0;
    return seq;
  };

  seq.current = function(_) {
    if (_ !== undefined) {
      var c = Math.max(Math.min(max, _), 0);
      if (c !== current) {
        current = c;
        update();
      }
      return this;
    }
    return current;
  };

  seq.prev = function() {
    current -= 1;
    if (current < 0) {
      current = max;
    }
    update();
  };

  return seq;
}

module.exports = Sequential;

},{"../story":14}],21:[function(_dereq_,module,exports){

function Video(player) {
  if (typeof YT === 'undefined' || !(player instanceof YT.Player)) {
    throw new Error("player should be a YT.Player instance, see youtube API");
  }
  
  var triggers = [];

  var i = setInterval(function() {
    var seconds = player.getCurrentTime();
    for (var i = 0; i < triggers.length; ++i) {
      var t = triggers[i];
      if (t.start <= seconds && t.end > seconds) {
        t.trigger((seconds - t.start)/(t.end - t.start));
      }
    }
  }, 100);

  var clear = function(t) {
    if (triggers.length === 0) {
      clearInterval(i);
    }
  };

  return {
    between: function(start, end) {
      var t = O.Trigger();
      t.start = start;
      t.end = end;
      triggers.push(t);
      t.clear = function() {
        triggers.splice(triggers.indexOf(t), 1);
        clear();
      };
      return t;
    }
  }

}

module.exports = Video

},{}],22:[function(_dereq_,module,exports){
/**
# dot progress
ui widget that controls dot progress 

## usage
in order to use it you need to instanciate using a container, so for example:

  <div id="dots"></div>

  ...

  var progress = DotProgress('dots')

  // we set the number of slides
  progress.count(10);

  // we can activate it as an action
  // then the story enters in this state the second dot
  // will be activated
  story.addState(trigger, progress.activate(1))

  // when an user clicks on the dot it can trigger an action
  story.addState(progress.step(1), action);

## styling
the html rendered is the following:
```
  <div id="dots">
    <ul>
      <li><href="#0"></a></li>
      <li><href="#1" class="active"></a></li>
      <li><href="#2"></a></li>
      <li><href="#2"></a></li>
    </ul>
  </div>
```

so you can use active class to style the active one
 
 */

var Core = _dereq_('../core');

function DotProgress(el) {
  var count = 0;
  var element = Core.getElement(el);
  var triggers = {};

  function _progress() {
    return _progress;
  }

  function render() {
    var html = '<ul>';
    for(var i = 0; i < count; ++i) { 
      html += '<li><a slide-index="' + i + '" href="#' + i + '"></a></li>'; 
    }
    html += "</ul>";
    element.innerHTML = html;
  }

  _progress.count = function(_) {
    count = _;
    render();
    return _progress;
  };

  // returns an action to activate the index
  _progress.activate = function(activeIndex) {
    return O.Action(function () {
      var children = element.children[0].children;
      for(var i = 0; i < children.length; ++i) {
        children[i].children[0].setAttribute('class', '');
      }
      children[activeIndex].children[0].setAttribute('class', 'active');
    });
  };

  element.onclick = function(e) {
   e = e || window.event;

    var idx = (e.target || e.srcElement).getAttribute('slide-index');
    var t = triggers[idx];
    if (t) {
      t.trigger();
    }
  };

  _progress.step = function(i) {
    var t = O.Trigger();
    triggers[i] = t;
    return t;
  };

  return _progress;

}

module.exports = DotProgress;

},{"../core":13}],23:[function(_dereq_,module,exports){

module.exports = {
  DotProgress: _dereq_('./dotprogress')
}

},{"./dotprogress":22}],24:[function(_dereq_,module,exports){
/*
 * classList.js: Cross-browser full element.classList implementation.
 * 2014-01-31
 *
 * By Eli Grey, http://eligrey.com
 * Public Domain.
 * NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
 */

/*global self, document, DOMException */

/*! @source http://purl.eligrey.com/github/classList.js/blob/master/classList.js*/

if ("document" in self && !("classList" in document.createElement("_"))) {

(function (view) {

"use strict";

if (!('Element' in view)) return;

var
      classListProp = "classList"
    , protoProp = "prototype"
    , elemCtrProto = view.Element[protoProp]
    , objCtr = Object
    , strTrim = String[protoProp].trim || function () {
        return this.replace(/^\s+|\s+$/g, "");
    }
    , arrIndexOf = Array[protoProp].indexOf || function (item) {
        var
              i = 0
            , len = this.length
        ;
        for (; i < len; i++) {
            if (i in this && this[i] === item) {
                return i;
            }
        }
        return -1;
    }
    // Vendors: please allow content code to instantiate DOMExceptions
    , DOMEx = function (type, message) {
        this.name = type;
        this.code = DOMException[type];
        this.message = message;
    }
    , checkTokenAndGetIndex = function (classList, token) {
        if (token === "") {
            throw new DOMEx(
                  "SYNTAX_ERR"
                , "An invalid or illegal string was specified"
            );
        }
        if (/\s/.test(token)) {
            throw new DOMEx(
                  "INVALID_CHARACTER_ERR"
                , "String contains an invalid character"
            );
        }
        return arrIndexOf.call(classList, token);
    }
    , ClassList = function (elem) {
        var
              trimmedClasses = strTrim.call(elem.getAttribute("class") || "")
            , classes = trimmedClasses ? trimmedClasses.split(/\s+/) : []
            , i = 0
            , len = classes.length
        ;
        for (; i < len; i++) {
            this.push(classes[i]);
        }
        this._updateClassName = function () {
            elem.setAttribute("class", this.toString());
        };
    }
    , classListProto = ClassList[protoProp] = []
    , classListGetter = function () {
        return new ClassList(this);
    }
;
// Most DOMException implementations don't allow calling DOMException's toString()
// on non-DOMExceptions. Error's toString() is sufficient here.
DOMEx[protoProp] = Error[protoProp];
classListProto.item = function (i) {
    return this[i] || null;
};
classListProto.contains = function (token) {
    token += "";
    return checkTokenAndGetIndex(this, token) !== -1;
};
classListProto.add = function () {
    var
          tokens = arguments
        , i = 0
        , l = tokens.length
        , token
        , updated = false
    ;
    do {
        token = tokens[i] + "";
        if (checkTokenAndGetIndex(this, token) === -1) {
            this.push(token);
            updated = true;
        }
    }
    while (++i < l);

    if (updated) {
        this._updateClassName();
    }
};
classListProto.remove = function () {
    var
          tokens = arguments
        , i = 0
        , l = tokens.length
        , token
        , updated = false
    ;
    do {
        token = tokens[i] + "";
        var index = checkTokenAndGetIndex(this, token);
        if (index !== -1) {
            this.splice(index, 1);
            updated = true;
        }
    }
    while (++i < l);

    if (updated) {
        this._updateClassName();
    }
};
classListProto.toggle = function (token, force) {
    token += "";

    var
          result = this.contains(token)
        , method = result ?
            force !== true && "remove"
        :
            force !== false && "add"
    ;

    if (method) {
        this[method](token);
    }

    return !result;
};
classListProto.toString = function () {
    return this.join(" ");
};

if (objCtr.defineProperty) {
    var classListPropDesc = {
          get: classListGetter
        , enumerable: true
        , configurable: true
    };
    try {
        objCtr.defineProperty(elemCtrProto, classListProp, classListPropDesc);
    } catch (ex) { // IE 8 doesn't support enumerable:true
        if (ex.number === -0x7FF5EC54) {
            classListPropDesc.enumerable = false;
            objCtr.defineProperty(elemCtrProto, classListProp, classListPropDesc);
        }
    }
} else if (objCtr[protoProp].__defineGetter__) {
    elemCtrProto.__defineGetter__(classListProp, classListGetter);
}

}(self));

}

},{}],25:[function(_dereq_,module,exports){
/**
 * new L.CrossHair('http://image.com/image', { x: 10, y :10 }).addTo(map)
 */
if (typeof window.L !== 'undefined') {

L.CrossHair = L.Control.extend({

  initialize: function(img, size) {
    this.image = new Image();
    this.image.onload = L.bind(this._updatePos, this);
    this.image.src = img;
    if (size) {
      this.image.width = size.x;
      this.image.height = size.y;
    }
  },

  _updatePos: function() {
    if (this._map) {
      var w = this.image.width >> 1;
      var h = this.image.height >> 1;
      w = this._map.getSize().x/2.0 - w;
      h = this._map.getSize().y/2.0 - h;
      L.DomUtil.setPosition(this.image, { x: w, y: h });
    }
  },

  addTo: function(map) {
    var r = L.Control.prototype.addTo.call(this, map);
    // remove leaflet-top and leaflet-right classes
    this.image.parentNode.setAttribute('class', '');
    map.on('resize', L.bind(this._updatePos, this));
    return r;
  },

  onRemove: function(map) {
    map.off('resize', null, this);
  },

  onAdd: function(map) {
    this._updatePos();
    return this.image;
  }

});

}

},{}],26:[function(_dereq_,module,exports){

module.exports = {
  CrossHair: _dereq_('./crosshair')
}

},{"./crosshair":25}],27:[function(_dereq_,module,exports){
if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    ctor.prototype = Object.create(superCtor.prototype, {
      constructor: {
        value: ctor,
        enumerable: false,
        writable: true,
        configurable: true
      }
    });
  };
} else {
  // old school shim for old browsers
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor
    var TempCtor = function () {}
    TempCtor.prototype = superCtor.prototype
    ctor.prototype = new TempCtor()
    ctor.prototype.constructor = ctor
  }
}

},{}],28:[function(_dereq_,module,exports){
// shim for using process in browser

var process = module.exports = {};

process.nextTick = (function () {
    var canSetImmediate = typeof window !== 'undefined'
    && window.setImmediate;
    var canPost = typeof window !== 'undefined'
    && window.postMessage && window.addEventListener
    ;

    if (canSetImmediate) {
        return function (f) { return window.setImmediate(f) };
    }

    if (canPost) {
        var queue = [];
        window.addEventListener('message', function (ev) {
            var source = ev.source;
            if ((source === window || source === null) && ev.data === 'process-tick') {
                ev.stopPropagation();
                if (queue.length > 0) {
                    var fn = queue.shift();
                    fn();
                }
            }
        }, true);

        return function nextTick(fn) {
            queue.push(fn);
            window.postMessage('process-tick', '*');
        };
    }

    return function nextTick(fn) {
        setTimeout(fn, 0);
    };
})();

process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;

process.binding = function (name) {
    throw new Error('process.binding is not supported');
}

// TODO(shtylman)
process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};

},{}],29:[function(_dereq_,module,exports){
module.exports = function isBuffer(arg) {
  return arg && typeof arg === 'object'
    && typeof arg.copy === 'function'
    && typeof arg.fill === 'function'
    && typeof arg.readUInt8 === 'function';
}
},{}],30:[function(_dereq_,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// 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.

var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
  if (!isString(f)) {
    var objects = [];
    for (var i = 0; i < arguments.length; i++) {
      objects.push(inspect(arguments[i]));
    }
    return objects.join(' ');
  }

  var i = 1;
  var args = arguments;
  var len = args.length;
  var str = String(f).replace(formatRegExp, function(x) {
    if (x === '%%') return '%';
    if (i >= len) return x;
    switch (x) {
      case '%s': return String(args[i++]);
      case '%d': return Number(args[i++]);
      case '%j':
        try {
          return JSON.stringify(args[i++]);
        } catch (_) {
          return '[Circular]';
        }
      default:
        return x;
    }
  });
  for (var x = args[i]; i < len; x = args[++i]) {
    if (isNull(x) || !isObject(x)) {
      str += ' ' + x;
    } else {
      str += ' ' + inspect(x);
    }
  }
  return str;
};


// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
  // Allow for deprecating things in the process of starting up.
  if (isUndefined(global.process)) {
    return function() {
      return exports.deprecate(fn, msg).apply(this, arguments);
    };
  }

  if (process.noDeprecation === true) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (process.throwDeprecation) {
        throw new Error(msg);
      } else if (process.traceDeprecation) {
        console.trace(msg);
      } else {
        console.error(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
};


var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
  if (isUndefined(debugEnviron))
    debugEnviron = process.env.NODE_DEBUG || '';
  set = set.toUpperCase();
  if (!debugs[set]) {
    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
      var pid = process.pid;
      debugs[set] = function() {
        var msg = exports.format.apply(exports, arguments);
        console.error('%s %d: %s', set, pid, msg);
      };
    } else {
      debugs[set] = function() {};
    }
  }
  return debugs[set];
};


/**
 * Echos the value of a value. Trys to print the value out
 * in the best way possible given the different types.
 *
 * @param {Object} obj The object to print out.
 * @param {Object} opts Optional options object that alters the output.
 */
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
  // default options
  var ctx = {
    seen: [],
    stylize: stylizeNoColor
  };
  // legacy...
  if (arguments.length >= 3) ctx.depth = arguments[2];
  if (arguments.length >= 4) ctx.colors = arguments[3];
  if (isBoolean(opts)) {
    // legacy...
    ctx.showHidden = opts;
  } else if (opts) {
    // got an "options" object
    exports._extend(ctx, opts);
  }
  // set default options
  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
  if (isUndefined(ctx.depth)) ctx.depth = 2;
  if (isUndefined(ctx.colors)) ctx.colors = false;
  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
  if (ctx.colors) ctx.stylize = stylizeWithColor;
  return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;


// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
  'bold' : [1, 22],
  'italic' : [3, 23],
  'underline' : [4, 24],
  'inverse' : [7, 27],
  'white' : [37, 39],
  'grey' : [90, 39],
  'black' : [30, 39],
  'blue' : [34, 39],
  'cyan' : [36, 39],
  'green' : [32, 39],
  'magenta' : [35, 39],
  'red' : [31, 39],
  'yellow' : [33, 39]
};

// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
  'special': 'cyan',
  'number': 'yellow',
  'boolean': 'yellow',
  'undefined': 'grey',
  'null': 'bold',
  'string': 'green',
  'date': 'magenta',
  // "name": intentionally not styling
  'regexp': 'red'
};


function stylizeWithColor(str, styleType) {
  var style = inspect.styles[styleType];

  if (style) {
    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
           '\u001b[' + inspect.colors[style][1] + 'm';
  } else {
    return str;
  }
}


function stylizeNoColor(str, styleType) {
  return str;
}


function arrayToHash(array) {
  var hash = {};

  array.forEach(function(val, idx) {
    hash[val] = true;
  });

  return hash;
}


function formatValue(ctx, value, recurseTimes) {
  // Provide a hook for user-specified inspect functions.
  // Check that value is an object with an inspect function on it
  if (ctx.customInspect &&
      value &&
      isFunction(value.inspect) &&
      // Filter out the util module, it's inspect function is special
      value.inspect !== exports.inspect &&
      // Also filter out any prototype objects using the circular check.
      !(value.constructor && value.constructor.prototype === value)) {
    var ret = value.inspect(recurseTimes, ctx);
    if (!isString(ret)) {
      ret = formatValue(ctx, ret, recurseTimes);
    }
    return ret;
  }

  // Primitive types cannot have properties
  var primitive = formatPrimitive(ctx, value);
  if (primitive) {
    return primitive;
  }

  // Look up the keys of the object.
  var keys = Object.keys(value);
  var visibleKeys = arrayToHash(keys);

  if (ctx.showHidden) {
    keys = Object.getOwnPropertyNames(value);
  }

  // IE doesn't make error fields non-enumerable
  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
  if (isError(value)
      && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
    return formatError(value);
  }

  // Some type of object without properties can be shortcutted.
  if (keys.length === 0) {
    if (isFunction(value)) {
      var name = value.name ? ': ' + value.name : '';
      return ctx.stylize('[Function' + name + ']', 'special');
    }
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    }
    if (isDate(value)) {
      return ctx.stylize(Date.prototype.toString.call(value), 'date');
    }
    if (isError(value)) {
      return formatError(value);
    }
  }

  var base = '', array = false, braces = ['{', '}'];

  // Make Array say that they are Array
  if (isArray(value)) {
    array = true;
    braces = ['[', ']'];
  }

  // Make functions say that they are functions
  if (isFunction(value)) {
    var n = value.name ? ': ' + value.name : '';
    base = ' [Function' + n + ']';
  }

  // Make RegExps say that they are RegExps
  if (isRegExp(value)) {
    base = ' ' + RegExp.prototype.toString.call(value);
  }

  // Make dates with properties first say the date
  if (isDate(value)) {
    base = ' ' + Date.prototype.toUTCString.call(value);
  }

  // Make error with message first say the error
  if (isError(value)) {
    base = ' ' + formatError(value);
  }

  if (keys.length === 0 && (!array || value.length == 0)) {
    return braces[0] + base + braces[1];
  }

  if (recurseTimes < 0) {
    if (isRegExp(value)) {
      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
    } else {
      return ctx.stylize('[Object]', 'special');
    }
  }

  ctx.seen.push(value);

  var output;
  if (array) {
    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
  } else {
    output = keys.map(function(key) {
      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
    });
  }

  ctx.seen.pop();

  return reduceToSingleString(output, base, braces);
}


function formatPrimitive(ctx, value) {
  if (isUndefined(value))
    return ctx.stylize('undefined', 'undefined');
  if (isString(value)) {
    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
                                             .replace(/'/g, "\\'")
                                             .replace(/\\"/g, '"') + '\'';
    return ctx.stylize(simple, 'string');
  }
  if (isNumber(value))
    return ctx.stylize('' + value, 'number');
  if (isBoolean(value))
    return ctx.stylize('' + value, 'boolean');
  // For some reason typeof null is "object", so special case here.
  if (isNull(value))
    return ctx.stylize('null', 'null');
}


function formatError(value) {
  return '[' + Error.prototype.toString.call(value) + ']';
}


function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
  var output = [];
  for (var i = 0, l = value.length; i < l; ++i) {
    if (hasOwnProperty(value, String(i))) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          String(i), true));
    } else {
      output.push('');
    }
  }
  keys.forEach(function(key) {
    if (!key.match(/^\d+$/)) {
      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
          key, true));
    }
  });
  return output;
}


function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
  var name, str, desc;
  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
  if (desc.get) {
    if (desc.set) {
      str = ctx.stylize('[Getter/Setter]', 'special');
    } else {
      str = ctx.stylize('[Getter]', 'special');
    }
  } else {
    if (desc.set) {
      str = ctx.stylize('[Setter]', 'special');
    }
  }
  if (!hasOwnProperty(visibleKeys, key)) {
    name = '[' + key + ']';
  }
  if (!str) {
    if (ctx.seen.indexOf(desc.value) < 0) {
      if (isNull(recurseTimes)) {
        str = formatValue(ctx, desc.value, null);
      } else {
        str = formatValue(ctx, desc.value, recurseTimes - 1);
      }
      if (str.indexOf('\n') > -1) {
        if (array) {
          str = str.split('\n').map(function(line) {
            return '  ' + line;
          }).join('\n').substr(2);
        } else {
          str = '\n' + str.split('\n').map(function(line) {
            return '   ' + line;
          }).join('\n');
        }
      }
    } else {
      str = ctx.stylize('[Circular]', 'special');
    }
  }
  if (isUndefined(name)) {
    if (array && key.match(/^\d+$/)) {
      return str;
    }
    name = JSON.stringify('' + key);
    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
      name = name.substr(1, name.length - 2);
      name = ctx.stylize(name, 'name');
    } else {
      name = name.replace(/'/g, "\\'")
                 .replace(/\\"/g, '"')
                 .replace(/(^"|"$)/g, "'");
      name = ctx.stylize(name, 'string');
    }
  }

  return name + ': ' + str;
}


function reduceToSingleString(output, base, braces) {
  var numLinesEst = 0;
  var length = output.reduce(function(prev, cur) {
    numLinesEst++;
    if (cur.indexOf('\n') >= 0) numLinesEst++;
    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
  }, 0);

  if (length > 60) {
    return braces[0] +
           (base === '' ? '' : base + '\n ') +
           ' ' +
           output.join(',\n  ') +
           ' ' +
           braces[1];
  }

  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}


// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
  return Array.isArray(ar);
}
exports.isArray = isArray;

function isBoolean(arg) {
  return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;

function isNull(arg) {
  return arg === null;
}
exports.isNull = isNull;

function isNullOrUndefined(arg) {
  return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;

function isNumber(arg) {
  return typeof arg === 'number';
}
exports.isNumber = isNumber;

function isString(arg) {
  return typeof arg === 'string';
}
exports.isString = isString;

function isSymbol(arg) {
  return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;

function isUndefined(arg) {
  return arg === void 0;
}
exports.isUndefined = isUndefined;

function isRegExp(re) {
  return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;

function isDate(d) {
  return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;

function isError(e) {
  return isObject(e) &&
      (objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;

function isFunction(arg) {
  return typeof arg === 'function';
}
exports.isFunction = isFunction;

function isPrimitive(arg) {
  return arg === null ||
         typeof arg === 'boolean' ||
         typeof arg === 'number' ||
         typeof arg === 'string' ||
         typeof arg === 'symbol' ||  // ES6 symbol
         typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;

exports.isBuffer = _dereq_('./support/isBuffer');

function objectToString(o) {
  return Object.prototype.toString.call(o);
}


function pad(n) {
  return n < 10 ? '0' + n.toString(10) : n.toString(10);
}


var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
              'Oct', 'Nov', 'Dec'];

// 26 Feb 16:19:34
function timestamp() {
  var d = new Date();
  var time = [pad(d.getHours()),
              pad(d.getMinutes()),
              pad(d.getSeconds())].join(':');
  return [d.getDate(), months[d.getMonth()], time].join(' ');
}


// log is just a thin wrapper to console.log that prepends a timestamp
exports.log = function() {
  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
};


/**
 * Inherit the prototype methods from one constructor into another.
 *
 * The Function.prototype.inherits from lang.js rewritten as a standalone
 * function (not on Function.prototype). NOTE: If this file is to be loaded
 * during bootstrapping this function needs to be rewritten using some native
 * functions as prototype setup using normal JavaScript does not work as
 * expected during bootstrapping (see mirror.js in r114903).
 *
 * @param {function} ctor Constructor function which needs to inherit the
 *     prototype.
 * @param {function} superCtor Constructor function to inherit prototype from.
 */
exports.inherits = _dereq_('inherits');

exports._extend = function(origin, add) {
  // Don't do anything if add isn't an object
  if (!add || !isObject(add)) return origin;

  var keys = Object.keys(add);
  var i = keys.length;
  while (i--) {
    origin[keys[i]] = add[keys[i]];
  }
  return origin;
};

function hasOwnProperty(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}

}).call(this,_dereq_("FWaASH"),typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":29,"FWaASH":28,"inherits":27}],31:[function(_dereq_,module,exports){
/*! Hammer.JS - v1.1.3 - 2014-05-20
 * http://eightmedia.github.io/hammer.js
 *
 * Copyright (c) 2014 Jorik Tangelder <j.tangelder@gmail.com>;
 * Licensed under the MIT license */

(function(window, undefined) {
  'use strict';

/**
 * @main
 * @module hammer
 *
 * @class Hammer
 * @static
 */

/**
 * Hammer, use this to create instances
 * ````
 * var hammertime = new Hammer(myElement);
 * ````
 *
 * @method Hammer
 * @param {HTMLElement} element
 * @param {Object} [options={}]
 * @return {Hammer.Instance}
 */
var Hammer = function Hammer(element, options) {
    return new Hammer.Instance(element, options || {});
};

/**
 * version, as defined in package.json
 * the value will be set at each build
 * @property VERSION
 * @final
 * @type {String}
 */
Hammer.VERSION = '1.1.3';

/**
 * default settings.
 * more settings are defined per gesture at `/gestures`. Each gesture can be disabled/enabled
 * by setting it's name (like `swipe`) to false.
 * You can set the defaults for all instances by changing this object before creating an instance.
 * @example
 * ````
 *  Hammer.defaults.drag = false;
 *  Hammer.defaults.behavior.touchAction = 'pan-y';
 *  delete Hammer.defaults.behavior.userSelect;
 * ````
 * @property defaults
 * @type {Object}
 */
Hammer.defaults = {
    /**
     * this setting object adds styles and attributes to the element to prevent the browser from doing
     * its native behavior. The css properties are auto prefixed for the browsers when needed.
     * @property defaults.behavior
     * @type {Object}
     */
    behavior: {
        /**
         * Disables text selection to improve the dragging gesture. When the value is `none` it also sets
         * `onselectstart=false` for IE on the element. Mainly for desktop browsers.
         * @property defaults.behavior.userSelect
         * @type {String}
         * @default 'none'
         */
        userSelect: 'none',

        /**
         * Specifies whether and how a given region can be manipulated by the user (for instance, by panning or zooming).
         * Used by Chrome 35> and IE10>. By default this makes the element blocking any touch event.
         * @property defaults.behavior.touchAction
         * @type {String}
         * @default: 'pan-y'
         */
        touchAction: 'pan-y',

        /**
         * Disables the default callout shown when you touch and hold a touch target.
         * On iOS, when you touch and hold a touch target such as a link, Safari displays
         * a callout containing information about the link. This property allows you to disable that callout.
         * @property defaults.behavior.touchCallout
         * @type {String}
         * @default 'none'
         */
        touchCallout: 'none',

        /**
         * Specifies whether zooming is enabled. Used by IE10>
         * @property defaults.behavior.contentZooming
         * @type {String}
         * @default 'none'
         */
        contentZooming: 'none',

        /**
         * Specifies that an entire element should be draggable instead of its contents.
         * Mainly for desktop browsers.
         * @property defaults.behavior.userDrag
         * @type {String}
         * @default 'none'
         */
        userDrag: 'none',

        /**
         * Overrides the highlight color shown when the user taps a link or a JavaScript
         * clickable element in Safari on iPhone. This property obeys the alpha value, if specified.
         *
         * If you don't specify an alpha value, Safari on iPhone applies a default alpha value
         * to the color. To disable tap highlighting, set the alpha value to 0 (invisible).
         * If you set the alpha value to 1.0 (opaque), the element is not visible when tapped.
         * @property defaults.behavior.tapHighlightColor
         * @type {String}
         * @default 'rgba(0,0,0,0)'
         */
        tapHighlightColor: 'rgba(0,0,0,0)'
    }
};

/**
 * hammer document where the base events are added at
 * @property DOCUMENT
 * @type {HTMLElement}
 * @default window.document
 */
Hammer.DOCUMENT = document;

/**
 * detect support for pointer events
 * @property HAS_POINTEREVENTS
 * @type {Boolean}
 */
Hammer.HAS_POINTEREVENTS = navigator.pointerEnabled || navigator.msPointerEnabled;

/**
 * detect support for touch events
 * @property HAS_TOUCHEVENTS
 * @type {Boolean}
 */
Hammer.HAS_TOUCHEVENTS = ('ontouchstart' in window);

/**
 * detect mobile browsers
 * @property IS_MOBILE
 * @type {Boolean}
 */
Hammer.IS_MOBILE = /mobile|tablet|ip(ad|hone|od)|android|silk/i.test(navigator.userAgent);

/**
 * detect if we want to support mouseevents at all
 * @property NO_MOUSEEVENTS
 * @type {Boolean}
 */
Hammer.NO_MOUSEEVENTS = (Hammer.HAS_TOUCHEVENTS && Hammer.IS_MOBILE) || Hammer.HAS_POINTEREVENTS;

/**
 * interval in which Hammer recalculates current velocity/direction/angle in ms
 * @property CALCULATE_INTERVAL
 * @type {Number}
 * @default 25
 */
Hammer.CALCULATE_INTERVAL = 25;

/**
 * eventtypes per touchevent (start, move, end) are filled by `Event.determineEventTypes` on `setup`
 * the object contains the DOM event names per type (`EVENT_START`, `EVENT_MOVE`, `EVENT_END`)
 * @property EVENT_TYPES
 * @private
 * @writeOnce
 * @type {Object}
 */
var EVENT_TYPES = {};

/**
 * direction strings, for safe comparisons
 * @property DIRECTION_DOWN|LEFT|UP|RIGHT
 * @final
 * @type {String}
 * @default 'down' 'left' 'up' 'right'
 */
var DIRECTION_DOWN = Hammer.DIRECTION_DOWN = 'down';
var DIRECTION_LEFT = Hammer.DIRECTION_LEFT = 'left';
var DIRECTION_UP = Hammer.DIRECTION_UP = 'up';
var DIRECTION_RIGHT = Hammer.DIRECTION_RIGHT = 'right';

/**
 * pointertype strings, for safe comparisons
 * @property POINTER_MOUSE|TOUCH|PEN
 * @final
 * @type {String}
 * @default 'mouse' 'touch' 'pen'
 */
var POINTER_MOUSE = Hammer.POINTER_MOUSE = 'mouse';
var POINTER_TOUCH = Hammer.POINTER_TOUCH = 'touch';
var POINTER_PEN = Hammer.POINTER_PEN = 'pen';

/**
 * eventtypes
 * @property EVENT_START|MOVE|END|RELEASE|TOUCH
 * @final
 * @type {String}
 * @default 'start' 'change' 'move' 'end' 'release' 'touch'
 */
var EVENT_START = Hammer.EVENT_START = 'start';
var EVENT_MOVE = Hammer.EVENT_MOVE = 'move';
var EVENT_END = Hammer.EVENT_END = 'end';
var EVENT_RELEASE = Hammer.EVENT_RELEASE = 'release';
var EVENT_TOUCH = Hammer.EVENT_TOUCH = 'touch';

/**
 * if the window events are set...
 * @property READY
 * @writeOnce
 * @type {Boolean}
 * @default false
 */
Hammer.READY = false;

/**
 * plugins namespace
 * @property plugins
 * @type {Object}
 */
Hammer.plugins = Hammer.plugins || {};

/**
 * gestures namespace
 * see `/gestures` for the definitions
 * @property gestures
 * @type {Object}
 */
Hammer.gestures = Hammer.gestures || {};

/**
 * setup events to detect gestures on the document
 * this function is called when creating an new instance
 * @private
 */
function setup() {
    if(Hammer.READY) {
        return;
    }

    // find what eventtypes we add listeners to
    Event.determineEventTypes();

    // Register all gestures inside Hammer.gestures
    Utils.each(Hammer.gestures, function(gesture) {
        Detection.register(gesture);
    });

    // Add touch events on the document
    Event.onTouch(Hammer.DOCUMENT, EVENT_MOVE, Detection.detect);
    Event.onTouch(Hammer.DOCUMENT, EVENT_END, Detection.detect);

    // Hammer is ready...!
    Hammer.READY = true;
}

/**
 * @module hammer
 *
 * @class Utils
 * @static
 */
var Utils = Hammer.utils = {
    /**
     * extend method, could also be used for cloning when `dest` is an empty object.
     * changes the dest object
     * @method extend
     * @param {Object} dest
     * @param {Object} src
     * @param {Boolean} [merge=false]  do a merge
     * @return {Object} dest
     */
    extend: function extend(dest, src, merge) {
        for(var key in src) {
            if(!src.hasOwnProperty(key) || (dest[key] !== undefined && merge)) {
                continue;
            }
            dest[key] = src[key];
        }
        return dest;
    },

    /**
     * simple addEventListener wrapper
     * @method on
     * @param {HTMLElement} element
     * @param {String} type
     * @param {Function} handler
     */
    on: function on(element, type, handler) {
        element.addEventListener(type, handler, false);
    },

    /**
     * simple removeEventListener wrapper
     * @method off
     * @param {HTMLElement} element
     * @param {String} type
     * @param {Function} handler
     */
    off: function off(element, type, handler) {
        element.removeEventListener(type, handler, false);
    },

    /**
     * forEach over arrays and objects
     * @method each
     * @param {Object|Array} obj
     * @param {Function} iterator
     * @param {any} iterator.item
     * @param {Number} iterator.index
     * @param {Object|Array} iterator.obj the source object
     * @param {Object} context value to use as `this` in the iterator
     */
    each: function each(obj, iterator, context) {
        var i, len;

        // native forEach on arrays
        if('forEach' in obj) {
            obj.forEach(iterator, context);
        // arrays
        } else if(obj.length !== undefined) {
            for(i = 0, len = obj.length; i < len; i++) {
                if(iterator.call(context, obj[i], i, obj) === false) {
                    return;
                }
            }
        // objects
        } else {
            for(i in obj) {
                if(obj.hasOwnProperty(i) &&
                    iterator.call(context, obj[i], i, obj) === false) {
                    return;
                }
            }
        }
    },

    /**
     * find if a string contains the string using indexOf
     * @method inStr
     * @param {String} src
     * @param {String} find
     * @return {Boolean} found
     */
    inStr: function inStr(src, find) {
        return src.indexOf(find) > -1;
    },

    /**
     * find if a array contains the object using indexOf or a simple polyfill
     * @method inArray
     * @param {String} src
     * @param {String} find
     * @return {Boolean|Number} false when not found, or the index
     */
    inArray: function inArray(src, find) {
        if(src.indexOf) {
            var index = src.indexOf(find);
            return (index === -1) ? false : index;
        } else {
            for(var i = 0, len = src.length; i < len; i++) {
                if(src[i] === find) {
                    return i;
                }
            }
            return false;
        }
    },

    /**
     * convert an array-like object (`arguments`, `touchlist`) to an array
     * @method toArray
     * @param {Object} obj
     * @return {Array}
     */
    toArray: function toArray(obj) {
        return Array.prototype.slice.call(obj, 0);
    },

    /**
     * find if a node is in the given parent
     * @method hasParent
     * @param {HTMLElement} node
     * @param {HTMLElement} parent
     * @return {Boolean} found
     */
    hasParent: function hasParent(node, parent) {
        while(node) {
            if(node == parent) {
                return true;
            }
            node = node.parentNode;
        }
        return false;
    },

    /**
     * get the center of all the touches
     * @method getCenter
     * @param {Array} touches
     * @return {Object} center contains `pageX`, `pageY`, `clientX` and `clientY` properties
     */
    getCenter: function getCenter(touches) {
        var pageX = [],
            pageY = [],
            clientX = [],
            clientY = [],
            min = Math.min,
            max = Math.max;

        // no need to loop when only one touch
        if(touches.length === 1) {
            return {
                pageX: touches[0].pageX,
                pageY: touches[0].pageY,
                clientX: touches[0].clientX,
                clientY: touches[0].clientY
            };
        }

        Utils.each(touches, function(touch) {
            pageX.push(touch.pageX);
            pageY.push(touch.pageY);
            clientX.push(touch.clientX);
            clientY.push(touch.clientY);
        });

        return {
            pageX: (min.apply(Math, pageX) + max.apply(Math, pageX)) / 2,
            pageY: (min.apply(Math, pageY) + max.apply(Math, pageY)) / 2,
            clientX: (min.apply(Math, clientX) + max.apply(Math, clientX)) / 2,
            clientY: (min.apply(Math, clientY) + max.apply(Math, clientY)) / 2
        };
    },

    /**
     * calculate the velocity between two points. unit is in px per ms.
     * @method getVelocity
     * @param {Number} deltaTime
     * @param {Number} deltaX
     * @param {Number} deltaY
     * @return {Object} velocity `x` and `y`
     */
    getVelocity: function getVelocity(deltaTime, deltaX, deltaY) {
        return {
            x: Math.abs(deltaX / deltaTime) || 0,
            y: Math.abs(deltaY / deltaTime) || 0
        };
    },

    /**
     * calculate the angle between two coordinates
     * @method getAngle
     * @param {Touch} touch1
     * @param {Touch} touch2
     * @return {Number} angle
     */
    getAngle: function getAngle(touch1, touch2) {
        var x = touch2.clientX - touch1.clientX,
            y = touch2.clientY - touch1.clientY;

        return Math.atan2(y, x) * 180 / Math.PI;
    },

    /**
     * do a small comparision to get the direction between two touches.
     * @method getDirection
     * @param {Touch} touch1
     * @param {Touch} touch2
     * @return {String} direction matches `DIRECTION_LEFT|RIGHT|UP|DOWN`
     */
    getDirection: function getDirection(touch1, touch2) {
        var x = Math.abs(touch1.clientX - touch2.clientX),
            y = Math.abs(touch1.clientY - touch2.clientY);

        if(x >= y) {
            return touch1.clientX - touch2.clientX > 0 ? DIRECTION_LEFT : DIRECTION_RIGHT;
        }
        return touch1.clientY - touch2.clientY > 0 ? DIRECTION_UP : DIRECTION_DOWN;
    },

    /**
     * calculate the distance between two touches
     * @method getDistance
     * @param {Touch}touch1
     * @param {Touch} touch2
     * @return {Number} distance
     */
    getDistance: function getDistance(touch1, touch2) {
        var x = touch2.clientX - touch1.clientX,
            y = touch2.clientY - touch1.clientY;

        return Math.sqrt((x * x) + (y * y));
    },

    /**
     * calculate the scale factor between two touchLists
     * no scale is 1, and goes down to 0 when pinched together, and bigger when pinched out
     * @method getScale
     * @param {Array} start array of touches
     * @param {Array} end array of touches
     * @return {Number} scale
     */
    getScale: function getScale(start, end) {
        // need two fingers...
        if(start.length >= 2 && end.length >= 2) {
            return this.getDistance(end[0], end[1]) / this.getDistance(start[0], start[1]);
        }
        return 1;
    },

    /**
     * calculate the rotation degrees between two touchLists
     * @method getRotation
     * @param {Array} start array of touches
     * @param {Array} end array of touches
     * @return {Number} rotation
     */
    getRotation: function getRotation(start, end) {
        // need two fingers
        if(start.length >= 2 && end.length >= 2) {
            return this.getAngle(end[1], end[0]) - this.getAngle(start[1], start[0]);
        }
        return 0;
    },

    /**
     * find out if the direction is vertical   *
     * @method isVertical
     * @param {String} direction matches `DIRECTION_UP|DOWN`
     * @return {Boolean} is_vertical
     */
    isVertical: function isVertical(direction) {
        return direction == DIRECTION_UP || direction == DIRECTION_DOWN;
    },

    /**
     * set css properties with their prefixes
     * @param {HTMLElement} element
     * @param {String} prop
     * @param {String} value
     * @param {Boolean} [toggle=true]
     * @return {Boolean}
     */
    setPrefixedCss: function setPrefixedCss(element, prop, value, toggle) {
        var prefixes = ['', 'Webkit', 'Moz', 'O', 'ms'];
        prop = Utils.toCamelCase(prop);

        for(var i = 0; i < prefixes.length; i++) {
            var p = prop;
            // prefixes
            if(prefixes[i]) {
                p = prefixes[i] + p.slice(0, 1).toUpperCase() + p.slice(1);
            }

            // test the style
            if(p in element.style) {
                element.style[p] = (toggle == null || toggle) && value || '';
                break;
            }
        }
    },

    /**
     * toggle browser default behavior by setting css properties.
     * `userSelect='none'` also sets `element.onselectstart` to false
     * `userDrag='none'` also sets `element.ondragstart` to false
     *
     * @method toggleBehavior
     * @param {HtmlElement} element
     * @param {Object} props
     * @param {Boolean} [toggle=true]
     */
    toggleBehavior: function toggleBehavior(element, props, toggle) {
        if(!props || !element || !element.style) {
            return;
        }

        // set the css properties
        Utils.each(props, function(value, prop) {
            Utils.setPrefixedCss(element, prop, value, toggle);
        });

        var falseFn = toggle && function() {
            return false;
        };

        // also the disable onselectstart
        if(props.userSelect == 'none') {
            element.onselectstart = falseFn;
        }
        // and disable ondragstart
        if(props.userDrag == 'none') {
            element.ondragstart = falseFn;
        }
    },

    /**
     * convert a string with underscores to camelCase
     * so prevent_default becomes preventDefault
     * @param {String} str
     * @return {String} camelCaseStr
     */
    toCamelCase: function toCamelCase(str) {
        return str.replace(/[_-]([a-z])/g, function(s) {
            return s[1].toUpperCase();
        });
    }
};


/**
 * @module hammer
 */
/**
 * @class Event
 * @static
 */
var Event = Hammer.event = {
    /**
     * when touch events have been fired, this is true
     * this is used to stop mouse events
     * @property prevent_mouseevents
     * @private
     * @type {Boolean}
     */
    preventMouseEvents: false,

    /**
     * if EVENT_START has been fired
     * @property started
     * @private
     * @type {Boolean}
     */
    started: false,

    /**
     * when the mouse is hold down, this is true
     * @property should_detect
     * @private
     * @type {Boolean}
     */
    shouldDetect: false,

    /**
     * simple event binder with a hook and support for multiple types
     * @method on
     * @param {HTMLElement} element
     * @param {String} type
     * @param {Function} handler
     * @param {Function} [hook]
     * @param {Object} hook.type
     */
    on: function on(element, type, handler, hook) {
        var types = type.split(' ');
        Utils.each(types, function(type) {
            Utils.on(element, type, handler);
            hook && hook(type);
        });
    },

    /**
     * simple event unbinder with a hook and support for multiple types
     * @method off
     * @param {HTMLElement} element
     * @param {String} type
     * @param {Function} handler
     * @param {Function} [hook]
     * @param {Object} hook.type
     */
    off: function off(element, type, handler, hook) {
        var types = type.split(' ');
        Utils.each(types, function(type) {
            Utils.off(element, type, handler);
            hook && hook(type);
        });
    },

    /**
     * the core touch event handler.
     * this finds out if we should to detect gestures
     * @method onTouch
     * @param {HTMLElement} element
     * @param {String} eventType matches `EVENT_START|MOVE|END`
     * @param {Function} handler
     * @return onTouchHandler {Function} the core event handler
     */
    onTouch: function onTouch(element, eventType, handler) {
        var self = this;

        var onTouchHandler = function onTouchHandler(ev) {
            var srcType = ev.type.toLowerCase(),
                isPointer = Hammer.HAS_POINTEREVENTS,
                isMouse = Utils.inStr(srcType, 'mouse'),
                triggerType;

            // if we are in a mouseevent, but there has been a touchevent triggered in this session
            // we want to do nothing. simply break out of the event.
            if(isMouse && self.preventMouseEvents) {
                return;

            // mousebutton must be down
            } else if(isMouse && eventType == EVENT_START && ev.button === 0) {
                self.preventMouseEvents = false;
                self.shouldDetect = true;
            } else if(isPointer && eventType == EVENT_START) {
                self.shouldDetect = (ev.buttons === 1 || PointerEvent.matchType(POINTER_TOUCH, ev));
            // just a valid start event, but no mouse
            } else if(!isMouse && eventType == EVENT_START) {
                self.preventMouseEvents = true;
                self.shouldDetect = true;
            }

            // update the pointer event before entering the detection
            if(isPointer && eventType != EVENT_END) {
                PointerEvent.updatePointer(eventType, ev);
            }

            // we are in a touch/down state, so allowed detection of gestures
            if(self.shouldDetect) {
                triggerType = self.doDetect.call(self, ev, eventType, element, handler);
            }

            // ...and we are done with the detection
            // so reset everything to start each detection totally fresh
            if(triggerType == EVENT_END) {
                self.preventMouseEvents = false;
                self.shouldDetect = false;
                PointerEvent.reset();
            // update the pointerevent object after the detection
            }

            if(isPointer && eventType == EVENT_END) {
                PointerEvent.updatePointer(eventType, ev);
            }
        };

        this.on(element, EVENT_TYPES[eventType], onTouchHandler);
        return onTouchHandler;
    },

    /**
     * the core detection method
     * this finds out what hammer-touch-events to trigger
     * @method doDetect
     * @param {Object} ev
     * @param {String} eventType matches `EVENT_START|MOVE|END`
     * @param {HTMLElement} element
     * @param {Function} handler
     * @return {String} triggerType matches `EVENT_START|MOVE|END`
     */
    doDetect: function doDetect(ev, eventType, element, handler) {
        var touchList = this.getTouchList(ev, eventType);
        var touchListLength = touchList.length;
        var triggerType = eventType;
        var triggerChange = touchList.trigger; // used by fakeMultitouch plugin
        var changedLength = touchListLength;

        // at each touchstart-like event we want also want to trigger a TOUCH event...
        if(eventType == EVENT_START) {
            triggerChange = EVENT_TOUCH;
        // ...the same for a touchend-like event
        } else if(eventType == EVENT_END) {
            triggerChange = EVENT_RELEASE;

            // keep track of how many touches have been removed
            changedLength = touchList.length - ((ev.changedTouches) ? ev.changedTouches.length : 1);
        }

        // after there are still touches on the screen,
        // we just want to trigger a MOVE event. so change the START or END to a MOVE
        // but only after detection has been started, the first time we actualy want a START
        if(changedLength > 0 && this.started) {
            triggerType = EVENT_MOVE;
        }

        // detection has been started, we keep track of this, see above
        this.started = true;

        // generate some event data, some basic information
        var evData = this.collectEventData(element, triggerType, touchList, ev);

        // trigger the triggerType event before the change (TOUCH, RELEASE) events
        // but the END event should be at last
        if(eventType != EVENT_END) {
            handler.call(Detection, evData);
        }

        // trigger a change (TOUCH, RELEASE) event, this means the length of the touches changed
        if(triggerChange) {
            evData.changedLength = changedLength;
            evData.eventType = triggerChange;

            handler.call(Detection, evData);

            evData.eventType = triggerType;
            delete evData.changedLength;
        }

        // trigger the END event
        if(triggerType == EVENT_END) {
            handler.call(Detection, evData);

            // ...and we are done with the detection
            // so reset everything to start each detection totally fresh
            this.started = false;
        }

        return triggerType;
    },

    /**
     * we have different events for each device/browser
     * determine what we need and set them in the EVENT_TYPES constant
     * the `onTouch` method is bind to these properties.
     * @method determineEventTypes
     * @return {Object} events
     */
    determineEventTypes: function determineEventTypes() {
        var types;
        if(Hammer.HAS_POINTEREVENTS) {
            if(window.PointerEvent) {
                types = [
                    'pointerdown',
                    'pointermove',
                    'pointerup pointercancel lostpointercapture'
                ];
            } else {
                types = [
                    'MSPointerDown',
                    'MSPointerMove',
                    'MSPointerUp MSPointerCancel MSLostPointerCapture'
                ];
            }
        } else if(Hammer.NO_MOUSEEVENTS) {
            types = [
                'touchstart',
                'touchmove',
                'touchend touchcancel'
            ];
        } else {
            types = [
                'touchstart mousedown',
                'touchmove mousemove',
                'touchend touchcancel mouseup'
            ];
        }

        EVENT_TYPES[EVENT_START] = types[0];
        EVENT_TYPES[EVENT_MOVE] = types[1];
        EVENT_TYPES[EVENT_END] = types[2];
        return EVENT_TYPES;
    },

    /**
     * create touchList depending on the event
     * @method getTouchList
     * @param {Object} ev
     * @param {String} eventType
     * @return {Array} touches
     */
    getTouchList: function getTouchList(ev, eventType) {
        // get the fake pointerEvent touchlist
        if(Hammer.HAS_POINTEREVENTS) {
            return PointerEvent.getTouchList();
        }

        // get the touchlist
        if(ev.touches) {
            if(eventType == EVENT_MOVE) {
                return ev.touches;
            }

            var identifiers = [];
            var concat = [].concat(Utils.toArray(ev.touches), Utils.toArray(ev.changedTouches));
            var touchList = [];

            Utils.each(concat, function(touch) {
                if(Utils.inArray(identifiers, touch.identifier) === false) {
                    touchList.push(touch);
                }
                identifiers.push(touch.identifier);
            });

            return touchList;
        }

        // make fake touchList from mouse position
        ev.identifier = 1;
        return [ev];
    },

    /**
     * collect basic event data
     * @method collectEventData
     * @param {HTMLElement} element
     * @param {String} eventType matches `EVENT_START|MOVE|END`
     * @param {Array} touches
     * @param {Object} ev
     * @return {Object} ev
     */
    collectEventData: function collectEventData(element, eventType, touches, ev) {
        // find out pointerType
        var pointerType = POINTER_TOUCH;
        if(Utils.inStr(ev.type, 'mouse') || PointerEvent.matchType(POINTER_MOUSE, ev)) {
            pointerType = POINTER_MOUSE;
        } else if(PointerEvent.matchType(POINTER_PEN, ev)) {
            pointerType = POINTER_PEN;
        }

        return {
            center: Utils.getCenter(touches),
            timeStamp: Date.now(),
            target: ev.target,
            touches: touches,
            eventType: eventType,
            pointerType: pointerType,
            srcEvent: ev,

            /**
             * prevent the browser default actions
             * mostly used to disable scrolling of the browser
             */
            preventDefault: function() {
                var srcEvent = this.srcEvent;
                srcEvent.preventManipulation && srcEvent.preventManipulation();
                srcEvent.preventDefault && srcEvent.preventDefault();
            },

            /**
             * stop bubbling the event up to its parents
             */
            stopPropagation: function() {
                this.srcEvent.stopPropagation();
            },

            /**
             * immediately stop gesture detection
             * might be useful after a swipe was detected
             * @return {*}
             */
            stopDetect: function() {
                return Detection.stopDetect();
            }
        };
    }
};


/**
 * @module hammer
 *
 * @class PointerEvent
 * @static
 */
var PointerEvent = Hammer.PointerEvent = {
    /**
     * holds all pointers, by `identifier`
     * @property pointers
     * @type {Object}
     */
    pointers: {},

    /**
     * get the pointers as an array
     * @method getTouchList
     * @return {Array} touchlist
     */
    getTouchList: function getTouchList() {
        var touchlist = [];
        // we can use forEach since pointerEvents only is in IE10
        Utils.each(this.pointers, function(pointer) {
            touchlist.push(pointer);
        });
        return touchlist;
    },

    /**
     * update the position of a pointer
     * @method updatePointer
     * @param {String} eventType matches `EVENT_START|MOVE|END`
     * @param {Object} pointerEvent
     */
    updatePointer: function updatePointer(eventType, pointerEvent) {
        if(eventType == EVENT_END || (eventType != EVENT_END && pointerEvent.buttons !== 1)) {
            delete this.pointers[pointerEvent.pointerId];
        } else {
            pointerEvent.identifier = pointerEvent.pointerId;
            this.pointers[pointerEvent.pointerId] = pointerEvent;
        }
    },

    /**
     * check if ev matches pointertype
     * @method matchType
     * @param {String} pointerType matches `POINTER_MOUSE|TOUCH|PEN`
     * @param {PointerEvent} ev
     */
    matchType: function matchType(pointerType, ev) {
        if(!ev.pointerType) {
            return false;
        }

        var pt = ev.pointerType,
            types = {};

        types[POINTER_MOUSE] = (pt === (ev.MSPOINTER_TYPE_MOUSE || POINTER_MOUSE));
        types[POINTER_TOUCH] = (pt === (ev.MSPOINTER_TYPE_TOUCH || POINTER_TOUCH));
        types[POINTER_PEN] = (pt === (ev.MSPOINTER_TYPE_PEN || POINTER_PEN));
        return types[pointerType];
    },

    /**
     * reset the stored pointers
     * @method reset
     */
    reset: function resetList() {
        this.pointers = {};
    }
};


/**
 * @module hammer
 *
 * @class Detection
 * @static
 */
var Detection = Hammer.detection = {
    // contains all registred Hammer.gestures in the correct order
    gestures: [],

    // data of the current Hammer.gesture detection session
    current: null,

    // the previous Hammer.gesture session data
    // is a full clone of the previous gesture.current object
    previous: null,

    // when this becomes true, no gestures are fired
    stopped: false,

    /**
     * start Hammer.gesture detection
     * @method startDetect
     * @param {Hammer.Instance} inst
     * @param {Object} eventData
     */
    startDetect: function startDetect(inst, eventData) {
        // already busy with a Hammer.gesture detection on an element
        if(this.current) {
            return;
        }

        this.stopped = false;

        // holds current session
        this.current = {
            inst: inst, // reference to HammerInstance we're working for
            startEvent: Utils.extend({}, eventData), // start eventData for distances, timing etc
            lastEvent: false, // last eventData
            lastCalcEvent: false, // last eventData for calculations.
            futureCalcEvent: false, // last eventData for calculations.
            lastCalcData: {}, // last lastCalcData
            name: '' // current gesture we're in/detected, can be 'tap', 'hold' etc
        };

        this.detect(eventData);
    },

    /**
     * Hammer.gesture detection
     * @method detect
     * @param {Object} eventData
     * @return {any}
     */
    detect: function detect(eventData) {
        if(!this.current || this.stopped) {
            return;
        }

        // extend event data with calculations about scale, distance etc
        eventData = this.extendEventData(eventData);

        // hammer instance and instance options
        var inst = this.current.inst,
            instOptions = inst.options;

        // call Hammer.gesture handlers
        Utils.each(this.gestures, function triggerGesture(gesture) {
            // only when the instance options have enabled this gesture
            if(!this.stopped && inst.enabled && instOptions[gesture.name]) {
                gesture.handler.call(gesture, eventData, inst);
            }
        }, this);

        // store as previous event event
        if(this.current) {
            this.current.lastEvent = eventData;
        }

        if(eventData.eventType == EVENT_END) {
            this.stopDetect();
        }

        return eventData;
    },

    /**
     * clear the Hammer.gesture vars
     * this is called on endDetect, but can also be used when a final Hammer.gesture has been detected
     * to stop other Hammer.gestures from being fired
     * @method stopDetect
     */
    stopDetect: function stopDetect() {
        // clone current data to the store as the previous gesture
        // used for the double tap gesture, since this is an other gesture detect session
        this.previous = Utils.extend({}, this.current);

        // reset the current
        this.current = null;
        this.stopped = true;
    },

    /**
     * calculate velocity, angle and direction
     * @method getVelocityData
     * @param {Object} ev
     * @param {Object} center
     * @param {Number} deltaTime
     * @param {Number} deltaX
     * @param {Number} deltaY
     */
    getCalculatedData: function getCalculatedData(ev, center, deltaTime, deltaX, deltaY) {
        var cur = this.current,
            recalc = false,
            calcEv = cur.lastCalcEvent,
            calcData = cur.lastCalcData;

        if(calcEv && ev.timeStamp - calcEv.timeStamp > Hammer.CALCULATE_INTERVAL) {
            center = calcEv.center;
            deltaTime = ev.timeStamp - calcEv.timeStamp;
            deltaX = ev.center.clientX - calcEv.center.clientX;
            deltaY = ev.center.clientY - calcEv.center.clientY;
            recalc = true;
        }

        if(ev.eventType == EVENT_TOUCH || ev.eventType == EVENT_RELEASE) {
            cur.futureCalcEvent = ev;
        }

        if(!cur.lastCalcEvent || recalc) {
            calcData.velocity = Utils.getVelocity(deltaTime, deltaX, deltaY);
            calcData.angle = Utils.getAngle(center, ev.center);
            calcData.direction = Utils.getDirection(center, ev.center);

            cur.lastCalcEvent = cur.futureCalcEvent || ev;
            cur.futureCalcEvent = ev;
        }

        ev.velocityX = calcData.velocity.x;
        ev.velocityY = calcData.velocity.y;
        ev.interimAngle = calcData.angle;
        ev.interimDirection = calcData.direction;
    },

    /**
     * extend eventData for Hammer.gestures
     * @method extendEventData
     * @param {Object} ev
     * @return {Object} ev
     */
    extendEventData: function extendEventData(ev) {
        var cur = this.current,
            startEv = cur.startEvent,
            lastEv = cur.lastEvent || startEv;

        // update the start touchlist to calculate the scale/rotation
        if(ev.eventType == EVENT_TOUCH || ev.eventType == EVENT_RELEASE) {
            startEv.touches = [];
            Utils.each(ev.touches, function(touch) {
                startEv.touches.push({
                    clientX: touch.clientX,
                    clientY: touch.clientY
                });
            });
        }

        var deltaTime = ev.timeStamp - startEv.timeStamp,
            deltaX = ev.center.clientX - startEv.center.clientX,
            deltaY = ev.center.clientY - startEv.center.clientY;

        this.getCalculatedData(ev, lastEv.center, deltaTime, deltaX, deltaY);

        Utils.extend(ev, {
            startEvent: startEv,

            deltaTime: deltaTime,
            deltaX: deltaX,
            deltaY: deltaY,

            distance: Utils.getDistance(startEv.center, ev.center),
            angle: Utils.getAngle(startEv.center, ev.center),
            direction: Utils.getDirection(startEv.center, ev.center),
            scale: Utils.getScale(startEv.touches, ev.touches),
            rotation: Utils.getRotation(startEv.touches, ev.touches)
        });

        return ev;
    },

    /**
     * register new gesture
     * @method register
     * @param {Object} gesture object, see `gestures/` for documentation
     * @return {Array} gestures
     */
    register: function register(gesture) {
        // add an enable gesture options if there is no given
        var options = gesture.defaults || {};
        if(options[gesture.name] === undefined) {
            options[gesture.name] = true;
        }

        // extend Hammer default options with the Hammer.gesture options
        Utils.extend(Hammer.defaults, options, true);

        // set its index
        gesture.index = gesture.index || 1000;

        // add Hammer.gesture to the list
        this.gestures.push(gesture);

        // sort the list by index
        this.gestures.sort(function(a, b) {
            if(a.index < b.index) {
                return -1;
            }
            if(a.index > b.index) {
                return 1;
            }
            return 0;
        });

        return this.gestures;
    }
};


/**
 * @module hammer
 */

/**
 * create new hammer instance
 * all methods should return the instance itself, so it is chainable.
 *
 * @class Instance
 * @constructor
 * @param {HTMLElement} element
 * @param {Object} [options={}] options are merged with `Hammer.defaults`
 * @return {Hammer.Instance}
 */
Hammer.Instance = function(element, options) {
    var self = this;

    // setup HammerJS window events and register all gestures
    // this also sets up the default options
    setup();

    /**
     * @property element
     * @type {HTMLElement}
     */
    this.element = element;

    /**
     * @property enabled
     * @type {Boolean}
     * @protected
     */
    this.enabled = true;

    /**
     * options, merged with the defaults
     * options with an _ are converted to camelCase
     * @property options
     * @type {Object}
     */
    Utils.each(options, function(value, name) {
        delete options[name];
        options[Utils.toCamelCase(name)] = value;
    });

    this.options = Utils.extend(Utils.extend({}, Hammer.defaults), options || {});

    // add some css to the element to prevent the browser from doing its native behavoir
    if(this.options.behavior) {
        Utils.toggleBehavior(this.element, this.options.behavior, true);
    }

    /**
     * event start handler on the element to start the detection
     * @property eventStartHandler
     * @type {Object}
     */
    this.eventStartHandler = Event.onTouch(element, EVENT_START, function(ev) {
        if(self.enabled && ev.eventType == EVENT_START) {
            Detection.startDetect(self, ev);
        } else if(ev.eventType == EVENT_TOUCH) {
            Detection.detect(ev);
        }
    });

    /**
     * keep a list of user event handlers which needs to be removed when calling 'dispose'
     * @property eventHandlers
     * @type {Array}
     */
    this.eventHandlers = [];
};

Hammer.Instance.prototype = {
    /**
     * bind events to the instance
     * @method on
     * @chainable
     * @param {String} gestures multiple gestures by splitting with a space
     * @param {Function} handler
     * @param {Object} handler.ev event object
     */
    on: function onEvent(gestures, handler) {
        var self = this;
        Event.on(self.element, gestures, handler, function(type) {
            self.eventHandlers.push({ gesture: type, handler: handler });
        });
        return self;
    },

    /**
     * unbind events to the instance
     * @method off
     * @chainable
     * @param {String} gestures
     * @param {Function} handler
     */
    off: function offEvent(gestures, handler) {
        var self = this;

        Event.off(self.element, gestures, handler, function(type) {
            var index = Utils.inArray({ gesture: type, handler: handler });
            if(index !== false) {
                self.eventHandlers.splice(index, 1);
            }
        });
        return self;
    },

    /**
     * trigger gesture event
     * @method trigger
     * @chainable
     * @param {String} gesture
     * @param {Object} [eventData]
     */
    trigger: function triggerEvent(gesture, eventData) {
        // optional
        if(!eventData) {
            eventData = {};
        }

        // create DOM event
        var event = Hammer.DOCUMENT.createEvent('Event');
        event.initEvent(gesture, true, true);
        event.gesture = eventData;

        // trigger on the target if it is in the instance element,
        // this is for event delegation tricks
        var element = this.element;
        if(Utils.hasParent(eventData.target, element)) {
            element = eventData.target;
        }

        element.dispatchEvent(event);
        return this;
    },

    /**
     * enable of disable hammer.js detection
     * @method enable
     * @chainable
     * @param {Boolean} state
     */
    enable: function enable(state) {
        this.enabled = state;
        return this;
    },

    /**
     * dispose this hammer instance
     * @method dispose
     * @return {Null}
     */
    dispose: function dispose() {
        var i, eh;

        // undo all changes made by stop_browser_behavior
        Utils.toggleBehavior(this.element, this.options.behavior, false);

        // unbind all custom event handlers
        for(i = -1; (eh = this.eventHandlers[++i]);) {
            Utils.off(this.element, eh.gesture, eh.handler);
        }

        this.eventHandlers = [];

        // unbind the start event listener
        Event.off(this.element, EVENT_TYPES[EVENT_START], this.eventStartHandler);

        return null;
    }
};


/**
 * @module gestures
 */
/**
 * Move with x fingers (default 1) around on the page.
 * Preventing the default browser behavior is a good way to improve feel and working.
 * ````
 *  hammertime.on("drag", function(ev) {
 *    console.log(ev);
 *    ev.gesture.preventDefault();
 *  });
 * ````
 *
 * @class Drag
 * @static
 */
/**
 * @event drag
 * @param {Object} ev
 */
/**
 * @event dragstart
 * @param {Object} ev
 */
/**
 * @event dragend
 * @param {Object} ev
 */
/**
 * @event drapleft
 * @param {Object} ev
 */
/**
 * @event dragright
 * @param {Object} ev
 */
/**
 * @event dragup
 * @param {Object} ev
 */
/**
 * @event dragdown
 * @param {Object} ev
 */

/**
 * @param {String} name
 */
(function(name) {
    var triggered = false;

    function dragGesture(ev, inst) {
        var cur = Detection.current;

        // max touches
        if(inst.options.dragMaxTouches > 0 &&
            ev.touches.length > inst.options.dragMaxTouches) {
            return;
        }

        switch(ev.eventType) {
            case EVENT_START:
                triggered = false;
                break;

            case EVENT_MOVE:
                // when the distance we moved is too small we skip this gesture
                // or we can be already in dragging
                if(ev.distance < inst.options.dragMinDistance &&
                    cur.name != name) {
                    return;
                }

                var startCenter = cur.startEvent.center;

                // we are dragging!
                if(cur.name != name) {
                    cur.name = name;
                    if(inst.options.dragDistanceCorrection && ev.distance > 0) {
                        // When a drag is triggered, set the event center to dragMinDistance pixels from the original event center.
                        // Without this correction, the dragged distance would jumpstart at dragMinDistance pixels instead of at 0.
                        // It might be useful to save the original start point somewhere
                        var factor = Math.abs(inst.options.dragMinDistance / ev.distance);
                        startCenter.pageX += ev.deltaX * factor;
                        startCenter.pageY += ev.deltaY * factor;
                        startCenter.clientX += ev.deltaX * factor;
                        startCenter.clientY += ev.deltaY * factor;

                        // recalculate event data using new start point
                        ev = Detection.extendEventData(ev);
                    }
                }

                // lock drag to axis?
                if(cur.lastEvent.dragLockToAxis ||
                    ( inst.options.dragLockToAxis &&
                        inst.options.dragLockMinDistance <= ev.distance
                        )) {
                    ev.dragLockToAxis = true;
                }

                // keep direction on the axis that the drag gesture started on
                var lastDirection = cur.lastEvent.direction;
                if(ev.dragLockToAxis && lastDirection !== ev.direction) {
                    if(Utils.isVertical(lastDirection)) {
                        ev.direction = (ev.deltaY < 0) ? DIRECTION_UP : DIRECTION_DOWN;
                    } else {
                        ev.direction = (ev.deltaX < 0) ? DIRECTION_LEFT : DIRECTION_RIGHT;
                    }
                }

                // first time, trigger dragstart event
                if(!triggered) {
                    inst.trigger(name + 'start', ev);
                    triggered = true;
                }

                // trigger events
                inst.trigger(name, ev);
                inst.trigger(name + ev.direction, ev);

                var isVertical = Utils.isVertical(ev.direction);

                // block the browser events
                if((inst.options.dragBlockVertical && isVertical) ||
                    (inst.options.dragBlockHorizontal && !isVertical)) {
                    ev.preventDefault();
                }
                break;

            case EVENT_RELEASE:
                if(triggered && ev.changedLength <= inst.options.dragMaxTouches) {
                    inst.trigger(name + 'end', ev);
                    triggered = false;
                }
                break;

            case EVENT_END:
                triggered = false;
                break;
        }
    }

    Hammer.gestures.Drag = {
        name: name,
        index: 50,
        handler: dragGesture,
        defaults: {
            /**
             * minimal movement that have to be made before the drag event gets triggered
             * @property dragMinDistance
             * @type {Number}
             * @default 10
             */
            dragMinDistance: 10,

            /**
             * Set dragDistanceCorrection to true to make the starting point of the drag
             * be calculated from where the drag was triggered, not from where the touch started.
             * Useful to avoid a jerk-starting drag, which can make fine-adjustments
             * through dragging difficult, and be visually unappealing.
             * @property dragDistanceCorrection
             * @type {Boolean}
             * @default true
             */
            dragDistanceCorrection: true,

            /**
             * set 0 for unlimited, but this can conflict with transform
             * @property dragMaxTouches
             * @type {Number}
             * @default 1
             */
            dragMaxTouches: 1,

            /**
             * prevent default browser behavior when dragging occurs
             * be careful with it, it makes the element a blocking element
             * when you are using the drag gesture, it is a good practice to set this true
             * @property dragBlockHorizontal
             * @type {Boolean}
             * @default false
             */
            dragBlockHorizontal: false,

            /**
             * same as `dragBlockHorizontal`, but for vertical movement
             * @property dragBlockVertical
             * @type {Boolean}
             * @default false
             */
            dragBlockVertical: false,

            /**
             * dragLockToAxis keeps the drag gesture on the axis that it started on,
             * It disallows vertical directions if the initial direction was horizontal, and vice versa.
             * @property dragLockToAxis
             * @type {Boolean}
             * @default false
             */
            dragLockToAxis: false,

            /**
             * drag lock only kicks in when distance > dragLockMinDistance
             * This way, locking occurs only when the distance has become large enough to reliably determine the direction
             * @property dragLockMinDistance
             * @type {Number}
             * @default 25
             */
            dragLockMinDistance: 25
        }
    };
})('drag');

/**
 * @module gestures
 */
/**
 * trigger a simple gesture event, so you can do anything in your handler.
 * only usable if you know what your doing...
 *
 * @class Gesture
 * @static
 */
/**
 * @event gesture
 * @param {Object} ev
 */
Hammer.gestures.Gesture = {
    name: 'gesture',
    index: 1337,
    handler: function releaseGesture(ev, inst) {
        inst.trigger(this.name, ev);
    }
};

/**
 * @module gestures
 */
/**
 * Touch stays at the same place for x time
 *
 * @class Hold
 * @static
 */
/**
 * @event hold
 * @param {Object} ev
 */

/**
 * @param {String} name
 */
(function(name) {
    var timer;

    function holdGesture(ev, inst) {
        var options = inst.options,
            current = Detection.current;

        switch(ev.eventType) {
            case EVENT_START:
                clearTimeout(timer);

                // set the gesture so we can check in the timeout if it still is
                current.name = name;

                // set timer and if after the timeout it still is hold,
                // we trigger the hold event
                timer = setTimeout(function() {
                    if(current && current.name == name) {
                        inst.trigger(name, ev);
                    }
                }, options.holdTimeout);
                break;

            case EVENT_MOVE:
                if(ev.distance > options.holdThreshold) {
                    clearTimeout(timer);
                }
                break;

            case EVENT_RELEASE:
                clearTimeout(timer);
                break;
        }
    }

    Hammer.gestures.Hold = {
        name: name,
        index: 10,
        defaults: {
            /**
             * @property holdTimeout
             * @type {Number}
             * @default 500
             */
            holdTimeout: 500,

            /**
             * movement allowed while holding
             * @property holdThreshold
             * @type {Number}
             * @default 2
             */
            holdThreshold: 2
        },
        handler: holdGesture
    };
})('hold');

/**
 * @module gestures
 */
/**
 * when a touch is being released from the page
 *
 * @class Release
 * @static
 */
/**
 * @event release
 * @param {Object} ev
 */
Hammer.gestures.Release = {
    name: 'release',
    index: Infinity,
    handler: function releaseGesture(ev, inst) {
        if(ev.eventType == EVENT_RELEASE) {
            inst.trigger(this.name, ev);
        }
    }
};

/**
 * @module gestures
 */
/**
 * triggers swipe events when the end velocity is above the threshold
 * for best usage, set `preventDefault` (on the drag gesture) to `true`
 * ````
 *  hammertime.on("dragleft swipeleft", function(ev) {
 *    console.log(ev);
 *    ev.gesture.preventDefault();
 *  });
 * ````
 *
 * @class Swipe
 * @static
 */
/**
 * @event swipe
 * @param {Object} ev
 */
/**
 * @event swipeleft
 * @param {Object} ev
 */
/**
 * @event swiperight
 * @param {Object} ev
 */
/**
 * @event swipeup
 * @param {Object} ev
 */
/**
 * @event swipedown
 * @param {Object} ev
 */
Hammer.gestures.Swipe = {
    name: 'swipe',
    index: 40,
    defaults: {
        /**
         * @property swipeMinTouches
         * @type {Number}
         * @default 1
         */
        swipeMinTouches: 1,

        /**
         * @property swipeMaxTouches
         * @type {Number}
         * @default 1
         */
        swipeMaxTouches: 1,

        /**
         * horizontal swipe velocity
         * @property swipeVelocityX
         * @type {Number}
         * @default 0.6
         */
        swipeVelocityX: 0.6,

        /**
         * vertical swipe velocity
         * @property swipeVelocityY
         * @type {Number}
         * @default 0.6
         */
        swipeVelocityY: 0.6
    },

    handler: function swipeGesture(ev, inst) {
        if(ev.eventType == EVENT_RELEASE) {
            var touches = ev.touches.length,
                options = inst.options;

            // max touches
            if(touches < options.swipeMinTouches ||
                touches > options.swipeMaxTouches) {
                return;
            }

            // when the distance we moved is too small we skip this gesture
            // or we can be already in dragging
            if(ev.velocityX > options.swipeVelocityX ||
                ev.velocityY > options.swipeVelocityY) {
                // trigger swipe events
                inst.trigger(this.name, ev);
                inst.trigger(this.name + ev.direction, ev);
            }
        }
    }
};

/**
 * @module gestures
 */
/**
 * Single tap and a double tap on a place
 *
 * @class Tap
 * @static
 */
/**
 * @event tap
 * @param {Object} ev
 */
/**
 * @event doubletap
 * @param {Object} ev
 */

/**
 * @param {String} name
 */
(function(name) {
    var hasMoved = false;

    function tapGesture(ev, inst) {
        var options = inst.options,
            current = Detection.current,
            prev = Detection.previous,
            sincePrev,
            didDoubleTap;

        switch(ev.eventType) {
            case EVENT_START:
                hasMoved = false;
                break;

            case EVENT_MOVE:
                hasMoved = hasMoved || (ev.distance > options.tapMaxDistance);
                break;

            case EVENT_END:
                if(!Utils.inStr(ev.srcEvent.type, 'cancel') && ev.deltaTime < options.tapMaxTime && !hasMoved) {
                    // previous gesture, for the double tap since these are two different gesture detections
                    sincePrev = prev && prev.lastEvent && ev.timeStamp - prev.lastEvent.timeStamp;
                    didDoubleTap = false;

                    // check if double tap
                    if(prev && prev.name == name &&
                        (sincePrev && sincePrev < options.doubleTapInterval) &&
                        ev.distance < options.doubleTapDistance) {
                        inst.trigger('doubletap', ev);
                        didDoubleTap = true;
                    }

                    // do a single tap
                    if(!didDoubleTap || options.tapAlways) {
                        current.name = name;
                        inst.trigger(current.name, ev);
                    }
                }
                break;
        }
    }

    Hammer.gestures.Tap = {
        name: name,
        index: 100,
        handler: tapGesture,
        defaults: {
            /**
             * max time of a tap, this is for the slow tappers
             * @property tapMaxTime
             * @type {Number}
             * @default 250
             */
            tapMaxTime: 250,

            /**
             * max distance of movement of a tap, this is for the slow tappers
             * @property tapMaxDistance
             * @type {Number}
             * @default 10
             */
            tapMaxDistance: 10,

            /**
             * always trigger the `tap` event, even while double-tapping
             * @property tapAlways
             * @type {Boolean}
             * @default true
             */
            tapAlways: true,

            /**
             * max distance between two taps
             * @property doubleTapDistance
             * @type {Number}
             * @default 20
             */
            doubleTapDistance: 20,

            /**
             * max time between two taps
             * @property doubleTapInterval
             * @type {Number}
             * @default 300
             */
            doubleTapInterval: 300
        }
    };
})('tap');

/**
 * @module gestures
 */
/**
 * when a touch is being touched at the page
 *
 * @class Touch
 * @static
 */
/**
 * @event touch
 * @param {Object} ev
 */
Hammer.gestures.Touch = {
    name: 'touch',
    index: -Infinity,
    defaults: {
        /**
         * call preventDefault at touchstart, and makes the element blocking by disabling the scrolling of the page,
         * but it improves gestures like transforming and dragging.
         * be careful with using this, it can be very annoying for users to be stuck on the page
         * @property preventDefault
         * @type {Boolean}
         * @default false
         */
        preventDefault: false,

        /**
         * disable mouse events, so only touch (or pen!) input triggers events
         * @property preventMouse
         * @type {Boolean}
         * @default false
         */
        preventMouse: false
    },
    handler: function touchGesture(ev, inst) {
        if(inst.options.preventMouse && ev.pointerType == POINTER_MOUSE) {
            ev.stopDetect();
            return;
        }

        if(inst.options.preventDefault) {
            ev.preventDefault();
        }

        if(ev.eventType == EVENT_TOUCH) {
            inst.trigger('touch', ev);
        }
    }
};

/**
 * @module gestures
 */
/**
 * User want to scale or rotate with 2 fingers
 * Preventing the default browser behavior is a good way to improve feel and working. This can be done with the
 * `preventDefault` option.
 *
 * @class Transform
 * @static
 */
/**
 * @event transform
 * @param {Object} ev
 */
/**
 * @event transformstart
 * @param {Object} ev
 */
/**
 * @event transformend
 * @param {Object} ev
 */
/**
 * @event pinchin
 * @param {Object} ev
 */
/**
 * @event pinchout
 * @param {Object} ev
 */
/**
 * @event rotate
 * @param {Object} ev
 */

/**
 * @param {String} name
 */
(function(name) {
    var triggered = false;

    function transformGesture(ev, inst) {
        switch(ev.eventType) {
            case EVENT_START:
                triggered = false;
                break;

            case EVENT_MOVE:
                // at least multitouch
                if(ev.touches.length < 2) {
                    return;
                }

                var scaleThreshold = Math.abs(1 - ev.scale);
                var rotationThreshold = Math.abs(ev.rotation);

                // when the distance we moved is too small we skip this gesture
                // or we can be already in dragging
                if(scaleThreshold < inst.options.transformMinScale &&
                    rotationThreshold < inst.options.transformMinRotation) {
                    return;
                }

                // we are transforming!
                Detection.current.name = name;

                // first time, trigger dragstart event
                if(!triggered) {
                    inst.trigger(name + 'start', ev);
                    triggered = true;
                }

                inst.trigger(name, ev); // basic transform event

                // trigger rotate event
                if(rotationThreshold > inst.options.transformMinRotation) {
                    inst.trigger('rotate', ev);
                }

                // trigger pinch event
                if(scaleThreshold > inst.options.transformMinScale) {
                    inst.trigger('pinch', ev);
                    inst.trigger('pinch' + (ev.scale < 1 ? 'in' : 'out'), ev);
                }
                break;

            case EVENT_RELEASE:
                if(triggered && ev.changedLength < 2) {
                    inst.trigger(name + 'end', ev);
                    triggered = false;
                }
                break;
        }
    }

    Hammer.gestures.Transform = {
        name: name,
        index: 45,
        defaults: {
            /**
             * minimal scale factor, no scale is 1, zoomin is to 0 and zoomout until higher then 1
             * @property transformMinScale
             * @type {Number}
             * @default 0.01
             */
            transformMinScale: 0.01,

            /**
             * rotation in degrees
             * @property transformMinRotation
             * @type {Number}
             * @default 1
             */
            transformMinRotation: 1
        },

        handler: transformGesture
    };
})('transform');

/**
 * @module hammer
 */

// AMD export
if(typeof define == 'function' && define.amd) {
    define(function() {
        return Hammer;
    });
// commonjs export
} else if(typeof module !== 'undefined' && module.exports) {
    module.exports = Hammer;
// browser export
} else {
    window.Hammer = Hammer;
}

})(window);
},{}],32:[function(_dereq_,module,exports){
if (!('indexOf' in Array.prototype)) {
    Array.prototype.indexOf= function(find, i /*opt*/) {
        if (i===undefined) i= 0;
        if (i<0) i+= this.length;
        if (i<0) i= 0;
        for (var n= this.length; i<n; i++)
            if (i in this && this[i]===find)
                return i;
        return -1;
    };
}

d3 = (function(){
  var d3 = {version: "3.3.10"}; // semver
function d3_class(ctor, properties) {
  try {
    for (var key in properties) {
      Object.defineProperty(ctor.prototype, key, {
        value: properties[key],
        enumerable: false
      });
    }
  } catch (e) {
    ctor.prototype = properties;
  }
}

d3.map = function(object) {
  var map = new d3_Map;
  if (object instanceof d3_Map) object.forEach(function(key, value) { map.set(key, value); });
  else for (var key in object) map.set(key, object[key]);
  return map;
};

function d3_Map() {}

d3_class(d3_Map, {
  has: function(key) {
    return d3_map_prefix + key in this;
  },
  get: function(key) {
    return this[d3_map_prefix + key];
  },
  set: function(key, value) {
    return this[d3_map_prefix + key] = value;
  },
  remove: function(key) {
    key = d3_map_prefix + key;
    return key in this && delete this[key];
  },
  keys: function() {
    var keys = [];
    this.forEach(function(key) { keys.push(key); });
    return keys;
  },
  values: function() {
    var values = [];
    this.forEach(function(key, value) { values.push(value); });
    return values;
  },
  entries: function() {
    var entries = [];
    this.forEach(function(key, value) { entries.push({key: key, value: value}); });
    return entries;
  },
  forEach: function(f) {
    for (var key in this) {
      if (key.charCodeAt(0) === d3_map_prefixCode) {
        f.call(this, key.substring(1), this[key]);
      }
    }
  }
});

var d3_map_prefix = "\0", // prevent collision with built-ins
    d3_map_prefixCode = d3_map_prefix.charCodeAt(0);

d3.dispatch = function() {
  var dispatch = new d3_dispatch,
      i = -1,
      n = arguments.length;
  while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
  return dispatch;
};

function d3_dispatch() {}

d3_dispatch.prototype.on = function(type, listener) {
  var i = type.indexOf("."),
      name = "";

  // Extract optional namespace, e.g., "click.foo"
  if (i >= 0) {
    name = type.substring(i + 1);
    type = type.substring(0, i);
  }

  if (type) return arguments.length < 2
      ? this[type].on(name)
      : this[type].on(name, listener);

  if (arguments.length === 2) {
    if (listener == null) for (type in this) {
      if (this.hasOwnProperty(type)) this[type].on(name, null);
    }
    return this;
  }
};

function d3_dispatch_event(dispatch) {
  var listeners = [],
      listenerByName = new d3_Map;

  function event() {
    var z = listeners, // defensive reference
        i = -1,
        n = z.length,
        l;
    while (++i < n) if (l = z[i].on) l.apply(this, arguments);
    return dispatch;
  }

  event.on = function(name, listener) {
    var l = listenerByName.get(name),
        i;

    // return the current listener, if any
    if (arguments.length < 2) return l && l.on;

    // remove the old listener, if any (with copy-on-write)
    if (l) {
      l.on = null;
      listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1));
      listenerByName.remove(name);
    }

    // add the new listener, if any
    if (listener) listeners.push(listenerByName.set(name, {on: listener}));

    return dispatch;
  };

  return event;
}
// Copies a variable number of methods from source to target.
d3.rebind = function(target, source) {
  var i = 1, n = arguments.length, method;
  while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);
  return target;
};

// Method is assumed to be a standard D3 getter-setter:
// If passed with no arguments, gets the value.
// If passed with arguments, sets the value and returns the target.
function d3_rebind(target, source, method) {
  return function() {
    var value = method.apply(source, arguments);
    return value === source ? target : value;
  };
}
  return d3;
})();

},{}],33:[function(_dereq_,module,exports){
// Released under MIT license
// Copyright (c) 2009-2010 Dominic Baggott
// Copyright (c) 2009-2010 Ash Berlin
// Copyright (c) 2011 Christoph Dorn <christoph@christophdorn.com> (http://www.christophdorn.com)
// Date: 2013-09-15T16:12Z

(function(expose) {




  var MarkdownHelpers = {};

  // For Spidermonkey based engines
  function mk_block_toSource() {
    return "Markdown.mk_block( " +
            uneval(this.toString()) +
            ", " +
            uneval(this.trailing) +
            ", " +
            uneval(this.lineNumber) +
            " )";
  }

  // node
  function mk_block_inspect() {
    var util = _dereq_("util");
    return "Markdown.mk_block( " +
            util.inspect(this.toString()) +
            ", " +
            util.inspect(this.trailing) +
            ", " +
            util.inspect(this.lineNumber) +
            " )";

  }

  MarkdownHelpers.mk_block = function(block, trail, line) {
    // Be helpful for default case in tests.
    if ( arguments.length === 1 )
      trail = "\n\n";

    // We actually need a String object, not a string primitive
    /* jshint -W053 */
    var s = new String(block);
    s.trailing = trail;
    // To make it clear its not just a string
    s.inspect = mk_block_inspect;
    s.toSource = mk_block_toSource;

    if ( line !== undefined )
      s.lineNumber = line;

    return s;
  };


  var isArray = MarkdownHelpers.isArray = Array.isArray || function(obj) {
    return Object.prototype.toString.call(obj) === "[object Array]";
  };

  // Don't mess with Array.prototype. Its not friendly
  if ( Array.prototype.forEach ) {
    MarkdownHelpers.forEach = function forEach( arr, cb, thisp ) {
      return arr.forEach( cb, thisp );
    };
  }
  else {
    MarkdownHelpers.forEach = function forEach(arr, cb, thisp) {
      for (var i = 0; i < arr.length; i++)
        cb.call(thisp || arr, arr[i], i, arr);
    };
  }

  MarkdownHelpers.isEmpty = function isEmpty( obj ) {
    for ( var key in obj ) {
      if ( hasOwnProperty.call( obj, key ) )
        return false;
    }
    return true;
  };

  MarkdownHelpers.extract_attr = function extract_attr( jsonml ) {
    return isArray(jsonml)
        && jsonml.length > 1
        && typeof jsonml[ 1 ] === "object"
        && !( isArray(jsonml[ 1 ]) )
        ? jsonml[ 1 ]
        : undefined;
  };




 /**
   *  class Markdown
   *
   *  Markdown processing in Javascript done right. We have very particular views
   *  on what constitutes 'right' which include:
   *
   *  - produces well-formed HTML (this means that em and strong nesting is
   *    important)
   *
   *  - has an intermediate representation to allow processing of parsed data (We
   *    in fact have two, both as [JsonML]: a markdown tree and an HTML tree).
   *
   *  - is easily extensible to add new dialects without having to rewrite the
   *    entire parsing mechanics
   *
   *  - has a good test suite
   *
   *  This implementation fulfills all of these (except that the test suite could
   *  do with expanding to automatically run all the fixtures from other Markdown
   *  implementations.)
   *
   *  ##### Intermediate Representation
   *
   *  *TODO* Talk about this :) Its JsonML, but document the node names we use.
   *
   *  [JsonML]: http://jsonml.org/ "JSON Markup Language"
   **/
  var Markdown = function(dialect) {
    switch (typeof dialect) {
    case "undefined":
      this.dialect = Markdown.dialects.Gruber;
      break;
    case "object":
      this.dialect = dialect;
      break;
    default:
      if ( dialect in Markdown.dialects )
        this.dialect = Markdown.dialects[dialect];
      else
        throw new Error("Unknown Markdown dialect '" + String(dialect) + "'");
      break;
    }
    this.em_state = [];
    this.strong_state = [];
    this.debug_indent = "";
  };

  /**
   * Markdown.dialects
   *
   * Namespace of built-in dialects.
   **/
  Markdown.dialects = {};




  // Imported functions
  var mk_block = Markdown.mk_block = MarkdownHelpers.mk_block,
      isArray = MarkdownHelpers.isArray;

  /**
   *  parse( markdown, [dialect] ) -> JsonML
   *  - markdown (String): markdown string to parse
   *  - dialect (String | Dialect): the dialect to use, defaults to gruber
   *
   *  Parse `markdown` and return a markdown document as a Markdown.JsonML tree.
   **/
  Markdown.parse = function( source, dialect ) {
    // dialect will default if undefined
    var md = new Markdown( dialect );
    return md.toTree( source );
  };

  function count_lines( str ) {
    var n = 0,
        i = -1;
    while ( ( i = str.indexOf("\n", i + 1) ) !== -1 )
      n++;
    return n;
  }

  // Internal - split source into rough blocks
  Markdown.prototype.split_blocks = function splitBlocks( input ) {
    input = input.replace(/(\r\n|\n|\r)/g, "\n");
    // [\s\S] matches _anything_ (newline or space)
    // [^] is equivalent but doesn't work in IEs.
    var re = /([\s\S]+?)($|\n#|\n(?:\s*\n|$)+)/g,
        blocks = [],
        m;

    var line_no = 1;

    if ( ( m = /^(\s*\n)/.exec(input) ) !== null ) {
      // skip (but count) leading blank lines
      line_no += count_lines( m[0] );
      re.lastIndex = m[0].length;
    }

    while ( ( m = re.exec(input) ) !== null ) {
      if (m[2] === "\n#") {
        m[2] = "\n";
        re.lastIndex--;
      }
      blocks.push( mk_block( m[1], m[2], line_no ) );
      line_no += count_lines( m[0] );
    }

    return blocks;
  };

  /**
   *  Markdown#processBlock( block, next ) -> undefined | [ JsonML, ... ]
   *  - block (String): the block to process
   *  - next (Array): the following blocks
   *
   * Process `block` and return an array of JsonML nodes representing `block`.
   *
   * It does this by asking each block level function in the dialect to process
   * the block until one can. Succesful handling is indicated by returning an
   * array (with zero or more JsonML nodes), failure by a false value.
   *
   * Blocks handlers are responsible for calling [[Markdown#processInline]]
   * themselves as appropriate.
   *
   * If the blocks were split incorrectly or adjacent blocks need collapsing you
   * can adjust `next` in place using shift/splice etc.
   *
   * If any of this default behaviour is not right for the dialect, you can
   * define a `__call__` method on the dialect that will get invoked to handle
   * the block processing.
   */
  Markdown.prototype.processBlock = function processBlock( block, next ) {
    var cbs = this.dialect.block,
        ord = cbs.__order__;

    if ( "__call__" in cbs )
      return cbs.__call__.call(this, block, next);

    for ( var i = 0; i < ord.length; i++ ) {
      //D:this.debug( "Testing", ord[i] );
      var res = cbs[ ord[i] ].call( this, block, next );
      if ( res ) {
        //D:this.debug("  matched");
        if ( !isArray(res) || ( res.length > 0 && !( isArray(res[0]) ) ) )
          this.debug(ord[i], "didn't return a proper array");
        //D:this.debug( "" );
        return res;
      }
    }

    // Uhoh! no match! Should we throw an error?
    return [];
  };

  Markdown.prototype.processInline = function processInline( block ) {
    return this.dialect.inline.__call__.call( this, String( block ) );
  };

  /**
   *  Markdown#toTree( source ) -> JsonML
   *  - source (String): markdown source to parse
   *
   *  Parse `source` into a JsonML tree representing the markdown document.
   **/
  // custom_tree means set this.tree to `custom_tree` and restore old value on return
  Markdown.prototype.toTree = function toTree( source, custom_root ) {
    var blocks = source instanceof Array ? source : this.split_blocks( source );

    // Make tree a member variable so its easier to mess with in extensions
    var old_tree = this.tree;
    try {
      this.tree = custom_root || this.tree || [ "markdown" ];

      blocks_loop:
      while ( blocks.length ) {
        var b = this.processBlock( blocks.shift(), blocks );

        // Reference blocks and the like won't return any content
        if ( !b.length )
          continue blocks_loop;

        this.tree.push.apply( this.tree, b );
      }
      return this.tree;
    }
    finally {
      if ( custom_root )
        this.tree = old_tree;
    }
  };

  // Noop by default
  Markdown.prototype.debug = function () {
    var args = Array.prototype.slice.call( arguments);
    args.unshift(this.debug_indent);
    if ( typeof print !== "undefined" )
      print.apply( print, args );
    if ( typeof console !== "undefined" && typeof console.log !== "undefined" )
      console.log.apply( null, args );
  };

  Markdown.prototype.loop_re_over_block = function( re, block, cb ) {
    // Dont use /g regexps with this
    var m,
        b = block.valueOf();

    while ( b.length && (m = re.exec(b) ) !== null ) {
      b = b.substr( m[0].length );
      cb.call(this, m);
    }
    return b;
  };

  // Build default order from insertion order.
  Markdown.buildBlockOrder = function(d) {
    var ord = [];
    for ( var i in d ) {
      if ( i === "__order__" || i === "__call__" )
        continue;
      ord.push( i );
    }
    d.__order__ = ord;
  };

  // Build patterns for inline matcher
  Markdown.buildInlinePatterns = function(d) {
    var patterns = [];

    for ( var i in d ) {
      // __foo__ is reserved and not a pattern
      if ( i.match( /^__.*__$/) )
        continue;
      var l = i.replace( /([\\.*+?|()\[\]{}])/g, "\\$1" )
               .replace( /\n/, "\\n" );
      patterns.push( i.length === 1 ? l : "(?:" + l + ")" );
    }

    patterns = patterns.join("|");
    d.__patterns__ = patterns;
    //print("patterns:", uneval( patterns ) );

    var fn = d.__call__;
    d.__call__ = function(text, pattern) {
      if ( pattern !== undefined )
        return fn.call(this, text, pattern);
      else
        return fn.call(this, text, patterns);
    };
  };




  var extract_attr = MarkdownHelpers.extract_attr;

  /**
   *  renderJsonML( jsonml[, options] ) -> String
   *  - jsonml (Array): JsonML array to render to XML
   *  - options (Object): options
   *
   *  Converts the given JsonML into well-formed XML.
   *
   *  The options currently understood are:
   *
   *  - root (Boolean): wether or not the root node should be included in the
   *    output, or just its children. The default `false` is to not include the
   *    root itself.
   */
  Markdown.renderJsonML = function( jsonml, options ) {
    options = options || {};
    // include the root element in the rendered output?
    options.root = options.root || false;

    var content = [];

    if ( options.root ) {
      content.push( render_tree( jsonml ) );
    }
    else {
      jsonml.shift(); // get rid of the tag
      if ( jsonml.length && typeof jsonml[ 0 ] === "object" && !( jsonml[ 0 ] instanceof Array ) )
        jsonml.shift(); // get rid of the attributes

      while ( jsonml.length )
        content.push( render_tree( jsonml.shift() ) );
    }

    return content.join( "\n\n" );
  };


  /**
   *  toHTMLTree( markdown, [dialect] ) -> JsonML
   *  toHTMLTree( md_tree ) -> JsonML
   *  - markdown (String): markdown string to parse
   *  - dialect (String | Dialect): the dialect to use, defaults to gruber
   *  - md_tree (Markdown.JsonML): parsed markdown tree
   *
   *  Turn markdown into HTML, represented as a JsonML tree. If a string is given
   *  to this function, it is first parsed into a markdown tree by calling
   *  [[parse]].
   **/
  Markdown.toHTMLTree = function toHTMLTree( input, dialect , options ) {

    // convert string input to an MD tree
    if ( typeof input === "string" )
      input = this.parse( input, dialect );

    // Now convert the MD tree to an HTML tree

    // remove references from the tree
    var attrs = extract_attr( input ),
        refs = {};

    if ( attrs && attrs.references )
      refs = attrs.references;

    var html = convert_tree_to_html( input, refs , options );
    merge_text_nodes( html );
    return html;
  };

  /**
   *  toHTML( markdown, [dialect]  ) -> String
   *  toHTML( md_tree ) -> String
   *  - markdown (String): markdown string to parse
   *  - md_tree (Markdown.JsonML): parsed markdown tree
   *
   *  Take markdown (either as a string or as a JsonML tree) and run it through
   *  [[toHTMLTree]] then turn it into a well-formated HTML fragment.
   **/
  Markdown.toHTML = function toHTML( source , dialect , options ) {
    var input = this.toHTMLTree( source , dialect , options );

    return this.renderJsonML( input );
  };


  function escapeHTML( text ) {
    return text.replace( /&/g, "&amp;" )
               .replace( /</g, "&lt;" )
               .replace( />/g, "&gt;" )
               .replace( /"/g, "&quot;" )
               .replace( /'/g, "&#39;" );
  }

  function render_tree( jsonml ) {
    // basic case
    if ( typeof jsonml === "string" )
      return escapeHTML( jsonml );

    var tag = jsonml.shift(),
        attributes = {},
        content = [];

    if ( jsonml.length && typeof jsonml[ 0 ] === "object" && !( jsonml[ 0 ] instanceof Array ) )
      attributes = jsonml.shift();

    while ( jsonml.length )
      content.push( render_tree( jsonml.shift() ) );

    var tag_attrs = "";
    for ( var a in attributes )
      tag_attrs += " " + a + '="' + escapeHTML( attributes[ a ] ) + '"';

    // be careful about adding whitespace here for inline elements
    if ( tag === "img" || tag === "br" || tag === "hr" )
      return "<"+ tag + tag_attrs + "/>";
    else
      return "<"+ tag + tag_attrs + ">" + content.join( "" ) + "</" + tag + ">";
  }

  function convert_tree_to_html( tree, references, options ) {
    var i;
    options = options || {};

    // shallow clone
    var jsonml = tree.slice( 0 );

    if ( typeof options.preprocessTreeNode === "function" )
      jsonml = options.preprocessTreeNode(jsonml, references);

    // Clone attributes if they exist
    var attrs = extract_attr( jsonml );
    if ( attrs ) {
      jsonml[ 1 ] = {};
      for ( i in attrs ) {
        jsonml[ 1 ][ i ] = attrs[ i ];
      }
      attrs = jsonml[ 1 ];
    }

    // basic case
    if ( typeof jsonml === "string" )
      return jsonml;

    // convert this node
    switch ( jsonml[ 0 ] ) {
    case "header":
      jsonml[ 0 ] = "h" + jsonml[ 1 ].level;
      delete jsonml[ 1 ].level;
      break;
    case "bulletlist":
      jsonml[ 0 ] = "ul";
      break;
    case "numberlist":
      jsonml[ 0 ] = "ol";
      break;
    case "listitem":
      jsonml[ 0 ] = "li";
      break;
    case "para":
      jsonml[ 0 ] = "p";
      break;
    case "markdown":
      jsonml[ 0 ] = "html";
      if ( attrs )
        delete attrs.references;
      break;
    case "code_block":
      jsonml[ 0 ] = "pre";
      i = attrs ? 2 : 1;
      var code = [ "code" ];
      code.push.apply( code, jsonml.splice( i, jsonml.length - i ) );
      jsonml[ i ] = code;
      break;
    case "inlinecode":
      jsonml[ 0 ] = "code";
      break;
    case "img":
      jsonml[ 1 ].src = jsonml[ 1 ].href;
      delete jsonml[ 1 ].href;
      break;
    case "linebreak":
      jsonml[ 0 ] = "br";
      break;
    case "link":
      jsonml[ 0 ] = "a";
      break;
    case "link_ref":
      jsonml[ 0 ] = "a";

      // grab this ref and clean up the attribute node
      var ref = references[ attrs.ref ];

      // if the reference exists, make the link
      if ( ref ) {
        delete attrs.ref;

        // add in the href and title, if present
        attrs.href = ref.href;
        if ( ref.title )
          attrs.title = ref.title;

        // get rid of the unneeded original text
        delete attrs.original;
      }
      // the reference doesn't exist, so revert to plain text
      else {
        return attrs.original;
      }
      break;
    case "img_ref":
      jsonml[ 0 ] = "img";

      // grab this ref and clean up the attribute node
      var ref = references[ attrs.ref ];

      // if the reference exists, make the link
      if ( ref ) {
        delete attrs.ref;

        // add in the href and title, if present
        attrs.src = ref.href;
        if ( ref.title )
          attrs.title = ref.title;

        // get rid of the unneeded original text
        delete attrs.original;
      }
      // the reference doesn't exist, so revert to plain text
      else {
        return attrs.original;
      }
      break;
    }

    // convert all the children
    i = 1;

    // deal with the attribute node, if it exists
    if ( attrs ) {
      // if there are keys, skip over it
      for ( var key in jsonml[ 1 ] ) {
        i = 2;
        break;
      }
      // if there aren't, remove it
      if ( i === 1 )
        jsonml.splice( i, 1 );
    }

    for ( ; i < jsonml.length; ++i ) {
      jsonml[ i ] = convert_tree_to_html( jsonml[ i ], references, options );
    }

    return jsonml;
  }


  // merges adjacent text nodes into a single node
  function merge_text_nodes( jsonml ) {
    // skip the tag name and attribute hash
    var i = extract_attr( jsonml ) ? 2 : 1;

    while ( i < jsonml.length ) {
      // if it's a string check the next item too
      if ( typeof jsonml[ i ] === "string" ) {
        if ( i + 1 < jsonml.length && typeof jsonml[ i + 1 ] === "string" ) {
          // merge the second string into the first and remove it
          jsonml[ i ] += jsonml.splice( i + 1, 1 )[ 0 ];
        }
        else {
          ++i;
        }
      }
      // if it's not a string recurse
      else {
        merge_text_nodes( jsonml[ i ] );
        ++i;
      }
    }
  };



  var DialectHelpers = {};
  DialectHelpers.inline_until_char = function( text, want ) {
    var consumed = 0,
        nodes = [];

    while ( true ) {
      if ( text.charAt( consumed ) === want ) {
        // Found the character we were looking for
        consumed++;
        return [ consumed, nodes ];
      }

      if ( consumed >= text.length ) {
        // No closing char found. Abort.
        return null;
      }

      var res = this.dialect.inline.__oneElement__.call(this, text.substr( consumed ) );
      consumed += res[ 0 ];
      // Add any returned nodes.
      nodes.push.apply( nodes, res.slice( 1 ) );
    }
  };

  // Helper function to make sub-classing a dialect easier
  DialectHelpers.subclassDialect = function( d ) {
    function Block() {}
    Block.prototype = d.block;
    function Inline() {}
    Inline.prototype = d.inline;

    return { block: new Block(), inline: new Inline() };
  };




  var forEach = MarkdownHelpers.forEach,
      extract_attr = MarkdownHelpers.extract_attr,
      mk_block = MarkdownHelpers.mk_block,
      isEmpty = MarkdownHelpers.isEmpty,
      inline_until_char = DialectHelpers.inline_until_char;

  /**
   * Gruber dialect
   *
   * The default dialect that follows the rules set out by John Gruber's
   * markdown.pl as closely as possible. Well actually we follow the behaviour of
   * that script which in some places is not exactly what the syntax web page
   * says.
   **/
  var Gruber = {
    block: {
      atxHeader: function atxHeader( block, next ) {
        var m = block.match( /^(#{1,6})\s*(.*?)\s*#*\s*(?:\n|$)/ );

        if ( !m )
          return undefined;

        var header = [ "header", { level: m[ 1 ].length } ];
        Array.prototype.push.apply(header, this.processInline(m[ 2 ]));

        if ( m[0].length < block.length )
          next.unshift( mk_block( block.substr( m[0].length ), block.trailing, block.lineNumber + 2 ) );

        return [ header ];
      },

      setextHeader: function setextHeader( block, next ) {
        var m = block.match( /^(.*)\n([-=])\2\2+(?:\n|$)/ );

        if ( !m )
          return undefined;

        var level = ( m[ 2 ] === "=" ) ? 1 : 2,
            header = [ "header", { level : level }, m[ 1 ] ];

        if ( m[0].length < block.length )
          next.unshift( mk_block( block.substr( m[0].length ), block.trailing, block.lineNumber + 2 ) );

        return [ header ];
      },

      code: function code( block, next ) {
        // |    Foo
        // |bar
        // should be a code block followed by a paragraph. Fun
        //
        // There might also be adjacent code block to merge.

        var ret = [],
            re = /^(?: {0,3}\t| {4})(.*)\n?/;

        // 4 spaces + content
        if ( !block.match( re ) )
          return undefined;

        block_search:
        do {
          // Now pull out the rest of the lines
          var b = this.loop_re_over_block(
                    re, block.valueOf(), function( m ) { ret.push( m[1] ); } );

          if ( b.length ) {
            // Case alluded to in first comment. push it back on as a new block
            next.unshift( mk_block(b, block.trailing) );
            break block_search;
          }
          else if ( next.length ) {
            // Check the next block - it might be code too
            if ( !next[0].match( re ) )
              break block_search;

            // Pull how how many blanks lines follow - minus two to account for .join
            ret.push ( block.trailing.replace(/[^\n]/g, "").substring(2) );

            block = next.shift();
          }
          else {
            break block_search;
          }
        } while ( true );

        return [ [ "code_block", ret.join("\n") ] ];
      },

      horizRule: function horizRule( block, next ) {
        // this needs to find any hr in the block to handle abutting blocks
        var m = block.match( /^(?:([\s\S]*?)\n)?[ \t]*([-_*])(?:[ \t]*\2){2,}[ \t]*(?:\n([\s\S]*))?$/ );

        if ( !m )
          return undefined;

        var jsonml = [ [ "hr" ] ];

        // if there's a leading abutting block, process it
        if ( m[ 1 ] ) {
          var contained = mk_block( m[ 1 ], "", block.lineNumber );
          jsonml.unshift.apply( jsonml, this.toTree( contained, [] ) );
        }

        // if there's a trailing abutting block, stick it into next
        if ( m[ 3 ] )
          next.unshift( mk_block( m[ 3 ], block.trailing, block.lineNumber + 1 ) );

        return jsonml;
      },

      // There are two types of lists. Tight and loose. Tight lists have no whitespace
      // between the items (and result in text just in the <li>) and loose lists,
      // which have an empty line between list items, resulting in (one or more)
      // paragraphs inside the <li>.
      //
      // There are all sorts weird edge cases about the original markdown.pl's
      // handling of lists:
      //
      // * Nested lists are supposed to be indented by four chars per level. But
      //   if they aren't, you can get a nested list by indenting by less than
      //   four so long as the indent doesn't match an indent of an existing list
      //   item in the 'nest stack'.
      //
      // * The type of the list (bullet or number) is controlled just by the
      //    first item at the indent. Subsequent changes are ignored unless they
      //    are for nested lists
      //
      lists: (function( ) {
        // Use a closure to hide a few variables.
        var any_list = "[*+-]|\\d+\\.",
            bullet_list = /[*+-]/,
            // Capture leading indent as it matters for determining nested lists.
            is_list_re = new RegExp( "^( {0,3})(" + any_list + ")[ \t]+" ),
            indent_re = "(?: {0,3}\\t| {4})";

        // TODO: Cache this regexp for certain depths.
        // Create a regexp suitable for matching an li for a given stack depth
        function regex_for_depth( depth ) {

          return new RegExp(
            // m[1] = indent, m[2] = list_type
            "(?:^(" + indent_re + "{0," + depth + "} {0,3})(" + any_list + ")\\s+)|" +
            // m[3] = cont
            "(^" + indent_re + "{0," + (depth-1) + "}[ ]{0,4})"
          );
        }
        function expand_tab( input ) {
          return input.replace( / {0,3}\t/g, "    " );
        }

        // Add inline content `inline` to `li`. inline comes from processInline
        // so is an array of content
        function add(li, loose, inline, nl) {
          if ( loose ) {
            li.push( [ "para" ].concat(inline) );
            return;
          }
          // Hmmm, should this be any block level element or just paras?
          var add_to = li[li.length -1] instanceof Array && li[li.length - 1][0] === "para"
                     ? li[li.length -1]
                     : li;

          // If there is already some content in this list, add the new line in
          if ( nl && li.length > 1 )
            inline.unshift(nl);

          for ( var i = 0; i < inline.length; i++ ) {
            var what = inline[i],
                is_str = typeof what === "string";
            if ( is_str && add_to.length > 1 && typeof add_to[add_to.length-1] === "string" )
              add_to[ add_to.length-1 ] += what;
            else
              add_to.push( what );
          }
        }

        // contained means have an indent greater than the current one. On
        // *every* line in the block
        function get_contained_blocks( depth, blocks ) {

          var re = new RegExp( "^(" + indent_re + "{" + depth + "}.*?\\n?)*$" ),
              replace = new RegExp("^" + indent_re + "{" + depth + "}", "gm"),
              ret = [];

          while ( blocks.length > 0 ) {
            if ( re.exec( blocks[0] ) ) {
              var b = blocks.shift(),
                  // Now remove that indent
                  x = b.replace( replace, "");

              ret.push( mk_block( x, b.trailing, b.lineNumber ) );
            }
            else
              break;
          }
          return ret;
        }

        // passed to stack.forEach to turn list items up the stack into paras
        function paragraphify(s, i, stack) {
          var list = s.list;
          var last_li = list[list.length-1];

          if ( last_li[1] instanceof Array && last_li[1][0] === "para" )
            return;
          if ( i + 1 === stack.length ) {
            // Last stack frame
            // Keep the same array, but replace the contents
            last_li.push( ["para"].concat( last_li.splice(1, last_li.length - 1) ) );
          }
          else {
            var sublist = last_li.pop();
            last_li.push( ["para"].concat( last_li.splice(1, last_li.length - 1) ), sublist );
          }
        }

        // The matcher function
        return function( block, next ) {
          var m = block.match( is_list_re );
          if ( !m )
            return undefined;

          function make_list( m ) {
            var list = bullet_list.exec( m[2] )
                     ? ["bulletlist"]
                     : ["numberlist"];

            stack.push( { list: list, indent: m[1] } );
            return list;
          }


          var stack = [], // Stack of lists for nesting.
              list = make_list( m ),
              last_li,
              loose = false,
              ret = [ stack[0].list ],
              i;

          // Loop to search over block looking for inner block elements and loose lists
          loose_search:
          while ( true ) {
            // Split into lines preserving new lines at end of line
            var lines = block.split( /(?=\n)/ );

            // We have to grab all lines for a li and call processInline on them
            // once as there are some inline things that can span lines.
            var li_accumulate = "", nl = "";

            // Loop over the lines in this block looking for tight lists.
            tight_search:
            for ( var line_no = 0; line_no < lines.length; line_no++ ) {
              nl = "";
              var l = lines[line_no].replace(/^\n/, function(n) { nl = n; return ""; });


              // TODO: really should cache this
              var line_re = regex_for_depth( stack.length );

              m = l.match( line_re );
              //print( "line:", uneval(l), "\nline match:", uneval(m) );

              // We have a list item
              if ( m[1] !== undefined ) {
                // Process the previous list item, if any
                if ( li_accumulate.length ) {
                  add( last_li, loose, this.processInline( li_accumulate ), nl );
                  // Loose mode will have been dealt with. Reset it
                  loose = false;
                  li_accumulate = "";
                }

                m[1] = expand_tab( m[1] );
                var wanted_depth = Math.floor(m[1].length/4)+1;
                //print( "want:", wanted_depth, "stack:", stack.length);
                if ( wanted_depth > stack.length ) {
                  // Deep enough for a nested list outright
                  //print ( "new nested list" );
                  list = make_list( m );
                  last_li.push( list );
                  last_li = list[1] = [ "listitem" ];
                }
                else {
                  // We aren't deep enough to be strictly a new level. This is
                  // where Md.pl goes nuts. If the indent matches a level in the
                  // stack, put it there, else put it one deeper then the
                  // wanted_depth deserves.
                  var found = false;
                  for ( i = 0; i < stack.length; i++ ) {
                    if ( stack[ i ].indent !== m[1] )
                      continue;

                    list = stack[ i ].list;
                    stack.splice( i+1, stack.length - (i+1) );
                    found = true;
                    break;
                  }

                  if (!found) {
                    //print("not found. l:", uneval(l));
                    wanted_depth++;
                    if ( wanted_depth <= stack.length ) {
                      stack.splice(wanted_depth, stack.length - wanted_depth);
                      //print("Desired depth now", wanted_depth, "stack:", stack.length);
                      list = stack[wanted_depth-1].list;
                      //print("list:", uneval(list) );
                    }
                    else {
                      //print ("made new stack for messy indent");
                      list = make_list(m);
                      last_li.push(list);
                    }
                  }

                  //print( uneval(list), "last", list === stack[stack.length-1].list );
                  last_li = [ "listitem" ];
                  list.push(last_li);
                } // end depth of shenegains
                nl = "";
              }

              // Add content
              if ( l.length > m[0].length )
                li_accumulate += nl + l.substr( m[0].length );
            } // tight_search

            if ( li_accumulate.length ) {
              add( last_li, loose, this.processInline( li_accumulate ), nl );
              // Loose mode will have been dealt with. Reset it
              loose = false;
              li_accumulate = "";
            }

            // Look at the next block - we might have a loose list. Or an extra
            // paragraph for the current li
            var contained = get_contained_blocks( stack.length, next );

            // Deal with code blocks or properly nested lists
            if ( contained.length > 0 ) {
              // Make sure all listitems up the stack are paragraphs
              forEach( stack, paragraphify, this);

              last_li.push.apply( last_li, this.toTree( contained, [] ) );
            }

            var next_block = next[0] && next[0].valueOf() || "";

            if ( next_block.match(is_list_re) || next_block.match( /^ / ) ) {
              block = next.shift();

              // Check for an HR following a list: features/lists/hr_abutting
              var hr = this.dialect.block.horizRule( block, next );

              if ( hr ) {
                ret.push.apply(ret, hr);
                break;
              }

              // Make sure all listitems up the stack are paragraphs
              forEach( stack, paragraphify, this);

              loose = true;
              continue loose_search;
            }
            break;
          } // loose_search

          return ret;
        };
      })(),

      blockquote: function blockquote( block, next ) {
        if ( !block.match( /^>/m ) )
          return undefined;

        var jsonml = [];

        // separate out the leading abutting block, if any. I.e. in this case:
        //
        //  a
        //  > b
        //
        if ( block[ 0 ] !== ">" ) {
          var lines = block.split( /\n/ ),
              prev = [],
              line_no = block.lineNumber;

          // keep shifting lines until you find a crotchet
          while ( lines.length && lines[ 0 ][ 0 ] !== ">" ) {
            prev.push( lines.shift() );
            line_no++;
          }

          var abutting = mk_block( prev.join( "\n" ), "\n", block.lineNumber );
          jsonml.push.apply( jsonml, this.processBlock( abutting, [] ) );
          // reassemble new block of just block quotes!
          block = mk_block( lines.join( "\n" ), block.trailing, line_no );
        }


        // if the next block is also a blockquote merge it in
        while ( next.length && next[ 0 ][ 0 ] === ">" ) {
          var b = next.shift();
          block = mk_block( block + block.trailing + b, b.trailing, block.lineNumber );
        }

        // Strip off the leading "> " and re-process as a block.
        var input = block.replace( /^> ?/gm, "" ),
            old_tree = this.tree,
            processedBlock = this.toTree( input, [ "blockquote" ] ),
            attr = extract_attr( processedBlock );

        // If any link references were found get rid of them
        if ( attr && attr.references ) {
          delete attr.references;
          // And then remove the attribute object if it's empty
          if ( isEmpty( attr ) )
            processedBlock.splice( 1, 1 );
        }

        jsonml.push( processedBlock );
        return jsonml;
      },

      referenceDefn: function referenceDefn( block, next) {
        var re = /^\s*\[(.*?)\]:\s*(\S+)(?:\s+(?:(['"])(.*?)\3|\((.*?)\)))?\n?/;
        // interesting matches are [ , ref_id, url, , title, title ]

        if ( !block.match(re) )
          return undefined;

        // make an attribute node if it doesn't exist
        if ( !extract_attr( this.tree ) )
          this.tree.splice( 1, 0, {} );

        var attrs = extract_attr( this.tree );

        // make a references hash if it doesn't exist
        if ( attrs.references === undefined )
          attrs.references = {};

        var b = this.loop_re_over_block(re, block, function( m ) {

          if ( m[2] && m[2][0] === "<" && m[2][m[2].length-1] === ">" )
            m[2] = m[2].substring( 1, m[2].length - 1 );

          var ref = attrs.references[ m[1].toLowerCase() ] = {
            href: m[2]
          };

          if ( m[4] !== undefined )
            ref.title = m[4];
          else if ( m[5] !== undefined )
            ref.title = m[5];

        } );

        if ( b.length )
          next.unshift( mk_block( b, block.trailing ) );

        return [];
      },

      para: function para( block ) {
        // everything's a para!
        return [ ["para"].concat( this.processInline( block ) ) ];
      }
    },

    inline: {

      __oneElement__: function oneElement( text, patterns_or_re, previous_nodes ) {
        var m,
            res;

        patterns_or_re = patterns_or_re || this.dialect.inline.__patterns__;
        var re = new RegExp( "([\\s\\S]*?)(" + (patterns_or_re.source || patterns_or_re) + ")" );

        m = re.exec( text );
        if (!m) {
          // Just boring text
          return [ text.length, text ];
        }
        else if ( m[1] ) {
          // Some un-interesting text matched. Return that first
          return [ m[1].length, m[1] ];
        }

        var res;
        if ( m[2] in this.dialect.inline ) {
          res = this.dialect.inline[ m[2] ].call(
                    this,
                    text.substr( m.index ), m, previous_nodes || [] );
        }
        // Default for now to make dev easier. just slurp special and output it.
        res = res || [ m[2].length, m[2] ];
        return res;
      },

      __call__: function inline( text, patterns ) {

        var out = [],
            res;

        function add(x) {
          //D:self.debug("  adding output", uneval(x));
          if ( typeof x === "string" && typeof out[out.length-1] === "string" )
            out[ out.length-1 ] += x;
          else
            out.push(x);
        }

        while ( text.length > 0 ) {
          res = this.dialect.inline.__oneElement__.call(this, text, patterns, out );
          text = text.substr( res.shift() );
          forEach(res, add );
        }

        return out;
      },

      // These characters are intersting elsewhere, so have rules for them so that
      // chunks of plain text blocks don't include them
      "]": function () {},
      "}": function () {},

      __escape__ : /^\\[\\`\*_{}\[\]()#\+.!\-]/,

      "\\": function escaped( text ) {
        // [ length of input processed, node/children to add... ]
        // Only esacape: \ ` * _ { } [ ] ( ) # * + - . !
        if ( this.dialect.inline.__escape__.exec( text ) )
          return [ 2, text.charAt( 1 ) ];
        else
          // Not an esacpe
          return [ 1, "\\" ];
      },

      "![": function image( text ) {

        // Unlike images, alt text is plain text only. no other elements are
        // allowed in there

        // ![Alt text](/path/to/img.jpg "Optional title")
        //      1          2            3       4         <--- captures
        var m = text.match( /^!\[(.*?)\][ \t]*\([ \t]*([^")]*?)(?:[ \t]+(["'])(.*?)\3)?[ \t]*\)/ );

        if ( m ) {
          if ( m[2] && m[2][0] === "<" && m[2][m[2].length-1] === ">" )
            m[2] = m[2].substring( 1, m[2].length - 1 );

          m[2] = this.dialect.inline.__call__.call( this, m[2], /\\/ )[0];

          var attrs = { alt: m[1], href: m[2] || "" };
          if ( m[4] !== undefined)
            attrs.title = m[4];

          return [ m[0].length, [ "img", attrs ] ];
        }

        // ![Alt text][id]
        m = text.match( /^!\[(.*?)\][ \t]*\[(.*?)\]/ );

        if ( m ) {
          // We can't check if the reference is known here as it likely wont be
          // found till after. Check it in md tree->hmtl tree conversion
          return [ m[0].length, [ "img_ref", { alt: m[1], ref: m[2].toLowerCase(), original: m[0] } ] ];
        }

        // Just consume the '!['
        return [ 2, "![" ];
      },

      "[": function link( text ) {

        var orig = String(text);
        // Inline content is possible inside `link text`
        var res = inline_until_char.call( this, text.substr(1), "]" );

        // No closing ']' found. Just consume the [
        if ( !res )
          return [ 1, "[" ];

        var consumed = 1 + res[ 0 ],
            children = res[ 1 ],
            link,
            attrs;

        // At this point the first [...] has been parsed. See what follows to find
        // out which kind of link we are (reference or direct url)
        text = text.substr( consumed );

        // [link text](/path/to/img.jpg "Optional title")
        //                 1            2       3         <--- captures
        // This will capture up to the last paren in the block. We then pull
        // back based on if there a matching ones in the url
        //    ([here](/url/(test))
        // The parens have to be balanced
        var m = text.match( /^\s*\([ \t]*([^"']*)(?:[ \t]+(["'])(.*?)\2)?[ \t]*\)/ );
        if ( m ) {
          var url = m[1];
          consumed += m[0].length;

          if ( url && url[0] === "<" && url[url.length-1] === ">" )
            url = url.substring( 1, url.length - 1 );

          // If there is a title we don't have to worry about parens in the url
          if ( !m[3] ) {
            var open_parens = 1; // One open that isn't in the capture
            for ( var len = 0; len < url.length; len++ ) {
              switch ( url[len] ) {
              case "(":
                open_parens++;
                break;
              case ")":
                if ( --open_parens === 0) {
                  consumed -= url.length - len;
                  url = url.substring(0, len);
                }
                break;
              }
            }
          }

          // Process escapes only
          url = this.dialect.inline.__call__.call( this, url, /\\/ )[0];

          attrs = { href: url || "" };
          if ( m[3] !== undefined)
            attrs.title = m[3];

          link = [ "link", attrs ].concat( children );
          return [ consumed, link ];
        }

        // [Alt text][id]
        // [Alt text] [id]
        m = text.match( /^\s*\[(.*?)\]/ );

        if ( m ) {

          consumed += m[ 0 ].length;

          // [links][] uses links as its reference
          attrs = { ref: ( m[ 1 ] || String(children) ).toLowerCase(),  original: orig.substr( 0, consumed ) };

          link = [ "link_ref", attrs ].concat( children );

          // We can't check if the reference is known here as it likely wont be
          // found till after. Check it in md tree->hmtl tree conversion.
          // Store the original so that conversion can revert if the ref isn't found.
          return [ consumed, link ];
        }

        // [id]
        // Only if id is plain (no formatting.)
        if ( children.length === 1 && typeof children[0] === "string" ) {

          attrs = { ref: children[0].toLowerCase(),  original: orig.substr( 0, consumed ) };
          link = [ "link_ref", attrs, children[0] ];
          return [ consumed, link ];
        }

        // Just consume the "["
        return [ 1, "[" ];
      },


      "<": function autoLink( text ) {
        var m;

        if ( ( m = text.match( /^<(?:((https?|ftp|mailto):[^>]+)|(.*?@.*?\.[a-zA-Z]+))>/ ) ) !== null ) {
          if ( m[3] )
            return [ m[0].length, [ "link", { href: "mailto:" + m[3] }, m[3] ] ];
          else if ( m[2] === "mailto" )
            return [ m[0].length, [ "link", { href: m[1] }, m[1].substr("mailto:".length ) ] ];
          else
            return [ m[0].length, [ "link", { href: m[1] }, m[1] ] ];
        }

        return [ 1, "<" ];
      },

      "`": function inlineCode( text ) {
        // Inline code block. as many backticks as you like to start it
        // Always skip over the opening ticks.
        var m = text.match( /(`+)(([\s\S]*?)\1)/ );

        if ( m && m[2] )
          return [ m[1].length + m[2].length, [ "inlinecode", m[3] ] ];
        else {
          // TODO: No matching end code found - warn!
          return [ 1, "`" ];
        }
      },

      "  \n": function lineBreak() {
        return [ 3, [ "linebreak" ] ];
      }

    }
  };

  // Meta Helper/generator method for em and strong handling
  function strong_em( tag, md ) {

    var state_slot = tag + "_state",
        other_slot = tag === "strong" ? "em_state" : "strong_state";

    function CloseTag(len) {
      this.len_after = len;
      this.name = "close_" + md;
    }

    return function ( text ) {

      if ( this[state_slot][0] === md ) {
        // Most recent em is of this type
        //D:this.debug("closing", md);
        this[state_slot].shift();

        // "Consume" everything to go back to the recrusion in the else-block below
        return[ text.length, new CloseTag(text.length-md.length) ];
      }
      else {
        // Store a clone of the em/strong states
        var other = this[other_slot].slice(),
            state = this[state_slot].slice();

        this[state_slot].unshift(md);

        //D:this.debug_indent += "  ";

        // Recurse
        var res = this.processInline( text.substr( md.length ) );
        //D:this.debug_indent = this.debug_indent.substr(2);

        var last = res[res.length - 1];

        //D:this.debug("processInline from", tag + ": ", uneval( res ) );

        var check = this[state_slot].shift();
        if ( last instanceof CloseTag ) {
          res.pop();
          // We matched! Huzzah.
          var consumed = text.length - last.len_after;
          return [ consumed, [ tag ].concat(res) ];
        }
        else {
          // Restore the state of the other kind. We might have mistakenly closed it.
          this[other_slot] = other;
          this[state_slot] = state;

          // We can't reuse the processed result as it could have wrong parsing contexts in it.
          return [ md.length, md ];
        }
      }
    }; // End returned function
  }

  Gruber.inline["**"] = strong_em("strong", "**");
  Gruber.inline["__"] = strong_em("strong", "__");
  Gruber.inline["*"]  = strong_em("em", "*");
  Gruber.inline["_"]  = strong_em("em", "_");

  Markdown.dialects.Gruber = Gruber;
  Markdown.buildBlockOrder ( Markdown.dialects.Gruber.block );
  Markdown.buildInlinePatterns( Markdown.dialects.Gruber.inline );



  var Maruku = DialectHelpers.subclassDialect( Gruber ),
      extract_attr = MarkdownHelpers.extract_attr,
      forEach = MarkdownHelpers.forEach;

  Maruku.processMetaHash = function processMetaHash( meta_string ) {
    var meta = split_meta_hash( meta_string ),
        attr = {};

    for ( var i = 0; i < meta.length; ++i ) {
      // id: #foo
      if ( /^#/.test( meta[ i ] ) )
        attr.id = meta[ i ].substring( 1 );
      // class: .foo
      else if ( /^\./.test( meta[ i ] ) ) {
        // if class already exists, append the new one
        if ( attr["class"] )
          attr["class"] = attr["class"] + meta[ i ].replace( /./, " " );
        else
          attr["class"] = meta[ i ].substring( 1 );
      }
      // attribute: foo=bar
      else if ( /\=/.test( meta[ i ] ) ) {
        var s = meta[ i ].split( /\=/ );
        attr[ s[ 0 ] ] = s[ 1 ];
      }
    }

    return attr;
  };

  function split_meta_hash( meta_string ) {
    var meta = meta_string.split( "" ),
        parts = [ "" ],
        in_quotes = false;

    while ( meta.length ) {
      var letter = meta.shift();
      switch ( letter ) {
      case " " :
        // if we're in a quoted section, keep it
        if ( in_quotes )
          parts[ parts.length - 1 ] += letter;
        // otherwise make a new part
        else
          parts.push( "" );
        break;
      case "'" :
      case '"' :
        // reverse the quotes and move straight on
        in_quotes = !in_quotes;
        break;
      case "\\" :
        // shift off the next letter to be used straight away.
        // it was escaped so we'll keep it whatever it is
        letter = meta.shift();
        /* falls through */
      default :
        parts[ parts.length - 1 ] += letter;
        break;
      }
    }

    return parts;
  }

  Maruku.block.document_meta = function document_meta( block ) {
    // we're only interested in the first block
    if ( block.lineNumber > 1 )
      return undefined;

    // document_meta blocks consist of one or more lines of `Key: Value\n`
    if ( ! block.match( /^(?:\w+:.*\n)*\w+:.*$/ ) )
      return undefined;

    // make an attribute node if it doesn't exist
    if ( !extract_attr( this.tree ) )
      this.tree.splice( 1, 0, {} );

    var pairs = block.split( /\n/ );
    for ( var p in pairs ) {
      var m = pairs[ p ].match( /(\w+):\s*(.*)$/ ),
          key = m[ 1 ].toLowerCase(),
          value = m[ 2 ];

      this.tree[ 1 ][ key ] = value;
    }

    // document_meta produces no content!
    return [];
  };

  Maruku.block.block_meta = function block_meta( block ) {
    // check if the last line of the block is an meta hash
    var m = block.match( /(^|\n) {0,3}\{:\s*((?:\\\}|[^\}])*)\s*\}$/ );
    if ( !m )
      return undefined;

    // process the meta hash
    var attr = this.dialect.processMetaHash( m[ 2 ] ),
        hash;

    // if we matched ^ then we need to apply meta to the previous block
    if ( m[ 1 ] === "" ) {
      var node = this.tree[ this.tree.length - 1 ];
      hash = extract_attr( node );

      // if the node is a string (rather than JsonML), bail
      if ( typeof node === "string" )
        return undefined;

      // create the attribute hash if it doesn't exist
      if ( !hash ) {
        hash = {};
        node.splice( 1, 0, hash );
      }

      // add the attributes in
      for ( var a in attr )
        hash[ a ] = attr[ a ];

      // return nothing so the meta hash is removed
      return [];
    }

    // pull the meta hash off the block and process what's left
    var b = block.replace( /\n.*$/, "" ),
        result = this.processBlock( b, [] );

    // get or make the attributes hash
    hash = extract_attr( result[ 0 ] );
    if ( !hash ) {
      hash = {};
      result[ 0 ].splice( 1, 0, hash );
    }

    // attach the attributes to the block
    for ( var a in attr )
      hash[ a ] = attr[ a ];

    return result;
  };

  Maruku.block.definition_list = function definition_list( block, next ) {
    // one or more terms followed by one or more definitions, in a single block
    var tight = /^((?:[^\s:].*\n)+):\s+([\s\S]+)$/,
        list = [ "dl" ],
        i, m;

    // see if we're dealing with a tight or loose block
    if ( ( m = block.match( tight ) ) ) {
      // pull subsequent tight DL blocks out of `next`
      var blocks = [ block ];
      while ( next.length && tight.exec( next[ 0 ] ) )
        blocks.push( next.shift() );

      for ( var b = 0; b < blocks.length; ++b ) {
        var m = blocks[ b ].match( tight ),
            terms = m[ 1 ].replace( /\n$/, "" ).split( /\n/ ),
            defns = m[ 2 ].split( /\n:\s+/ );

        // print( uneval( m ) );

        for ( i = 0; i < terms.length; ++i )
          list.push( [ "dt", terms[ i ] ] );

        for ( i = 0; i < defns.length; ++i ) {
          // run inline processing over the definition
          list.push( [ "dd" ].concat( this.processInline( defns[ i ].replace( /(\n)\s+/, "$1" ) ) ) );
        }
      }
    }
    else {
      return undefined;
    }

    return [ list ];
  };

  // splits on unescaped instances of @ch. If @ch is not a character the result
  // can be unpredictable

  Maruku.block.table = function table ( block ) {

    var _split_on_unescaped = function( s, ch ) {
      ch = ch || '\\s';
      if ( ch.match(/^[\\|\[\]{}?*.+^$]$/) )
        ch = '\\' + ch;
      var res = [ ],
          r = new RegExp('^((?:\\\\.|[^\\\\' + ch + '])*)' + ch + '(.*)'),
          m;
      while ( ( m = s.match( r ) ) ) {
        res.push( m[1] );
        s = m[2];
      }
      res.push(s);
      return res;
    };

    var leading_pipe = /^ {0,3}\|(.+)\n {0,3}\|\s*([\-:]+[\-| :]*)\n((?:\s*\|.*(?:\n|$))*)(?=\n|$)/,
        // find at least an unescaped pipe in each line
        no_leading_pipe = /^ {0,3}(\S(?:\\.|[^\\|])*\|.*)\n {0,3}([\-:]+\s*\|[\-| :]*)\n((?:(?:\\.|[^\\|])*\|.*(?:\n|$))*)(?=\n|$)/,
        i,
        m;
    if ( ( m = block.match( leading_pipe ) ) ) {
      // remove leading pipes in contents
      // (header and horizontal rule already have the leading pipe left out)
      m[3] = m[3].replace(/^\s*\|/gm, '');
    } else if ( ! ( m = block.match( no_leading_pipe ) ) ) {
      return undefined;
    }

    var table = [ "table", [ "thead", [ "tr" ] ], [ "tbody" ] ];

    // remove trailing pipes, then split on pipes
    // (no escaped pipes are allowed in horizontal rule)
    m[2] = m[2].replace(/\|\s*$/, '').split('|');

    // process alignment
    var html_attrs = [ ];
    forEach (m[2], function (s) {
      if (s.match(/^\s*-+:\s*$/))
        html_attrs.push({align: "right"});
      else if (s.match(/^\s*:-+\s*$/))
        html_attrs.push({align: "left"});
      else if (s.match(/^\s*:-+:\s*$/))
        html_attrs.push({align: "center"});
      else
        html_attrs.push({});
    });

    // now for the header, avoid escaped pipes
    m[1] = _split_on_unescaped(m[1].replace(/\|\s*$/, ''), '|');
    for (i = 0; i < m[1].length; i++) {
      table[1][1].push(['th', html_attrs[i] || {}].concat(
        this.processInline(m[1][i].trim())));
    }

    // now for body contents
    forEach (m[3].replace(/\|\s*$/mg, '').split('\n'), function (row) {
      var html_row = ['tr'];
      row = _split_on_unescaped(row, '|');
      for (i = 0; i < row.length; i++)
        html_row.push(['td', html_attrs[i] || {}].concat(this.processInline(row[i].trim())));
      table[2].push(html_row);
    }, this);

    return [table];
  };

  Maruku.inline[ "{:" ] = function inline_meta( text, matches, out ) {
    if ( !out.length )
      return [ 2, "{:" ];

    // get the preceeding element
    var before = out[ out.length - 1 ];

    if ( typeof before === "string" )
      return [ 2, "{:" ];

    // match a meta hash
    var m = text.match( /^\{:\s*((?:\\\}|[^\}])*)\s*\}/ );

    // no match, false alarm
    if ( !m )
      return [ 2, "{:" ];

    // attach the attributes to the preceeding element
    var meta = this.dialect.processMetaHash( m[ 1 ] ),
        attr = extract_attr( before );

    if ( !attr ) {
      attr = {};
      before.splice( 1, 0, attr );
    }

    for ( var k in meta )
      attr[ k ] = meta[ k ];

    // cut out the string and replace it with nothing
    return [ m[ 0 ].length, "" ];
  };


  Markdown.dialects.Maruku = Maruku;
  Markdown.dialects.Maruku.inline.__escape__ = /^\\[\\`\*_{}\[\]()#\+.!\-|:]/;
  Markdown.buildBlockOrder ( Markdown.dialects.Maruku.block );
  Markdown.buildInlinePatterns( Markdown.dialects.Maruku.inline );


// Include all our depndencies and;
  expose.Markdown = Markdown;
  expose.parse = Markdown.parse;
  expose.toHTML = Markdown.toHTML;
  expose.toHTMLTree = Markdown.toHTMLTree;
  expose.renderJsonML = Markdown.renderJsonML;

})(function() {
  window.markdown = {};
  return window.markdown;
}());

},{"util":30}]},{},[1])
(1)
});