History.implement(new Options());History.implement({options:{separator:';'},routes:[],register:function(route){if(this.routes.push(route)==1)this.addEvent('changed',this.match);},unregister:function(route){this.routes.remove(route);},match:function(state,previous,manual){if(!manual)this.routes.each(Function.methodize('match',this.state));},generate:function(){return this.routes.map(Function.methodize('generate')).clean().join(this.options.separator);},update:function(){return this.setState(this.generate());}});History.Route=new Class({Implements:[Events,Options],options:{skipDefaults:true,defaults:[],pattern:null,flags:'',generate:function(values){return values[0];},onMatch:$empty},initialize:function(options){this.setOptions(options);this.pattern=this.options.pattern||'(.*)';if($type(this.pattern)=='string')this.pattern=new RegExp(this.pattern,this.options.flags);this.values=this.defaults=this.options.defaults.slice();History.register(this);return this;},setValues:function(values){if(this.values.toString()==values.toString())return this;this.values=values;History.update();return this;},setValue:function(index,value){if(this.values[index]==value)return this;this.values[index]=value;History.update();return this;},build:function(values){var tmp=this.values.slice();this.values=values;var state=History.generate();this.values=tmp;return state;},destroy:function(){History.unregister(this);},generate:function(){if(this.options.skipDefaultMatch&&(String(this.values)==String(this.defaults)))return null;return this.options.generate.call(this,this.values);},match:function(state){var bits=state.match(this.pattern);var defaults=this.defaults;if(bits){bits.splice(0,1);for(var i=0,j=bits.length;i<j;i++)bits[i]=$pick(bits[i],defaults[i]||null);if(String(bits)!=String(defaults))this.values=bits;}else{this.values=this.defaults.slice();}
this.fireEvent('onMatch',[this.values,this.defaults]);}});Function.methodize=function(name){var args=Array.slice(arguments,1);return function(obj){return obj[name].apply(obj,args);};};