define([
    'dojo/_base/declare',
    'dojo/io-query'
],function(declare,ioQuery){

    var _paramMatch = /:(\w[\w\d]*)/g;
    var _paramReplace = "([^\\/!]+)";

    var Path = declare(null,{
        _paramNames: null,
        _matcher: null,
        constructor: function(pattern) {
            var match = null;
            this._paramNames = [];
			while((match = _paramMatch.exec(pattern)) !== null){
				this._paramNames.push(match[1]);
			}
            pattern = pattern.replace(_paramMatch, _paramReplace);
            this._matcher = new RegExp('^!'+pattern+'(!(.*))?$');
        },
        match: function(path) {
            var params = null;
            var result = null;
            if ((result = this._matcher.exec(path)) !== null) {
                var numParams = this._paramNames.length;
                params = {};
                for (var j = 0; j < numParams; j++) {
                    params[this._paramNames[j]] = result[j+1];
                }
                if ( result.length > numParams+1 && result[numParams+2] ) {
                    params.options = ioQuery.queryToObject(result[numParams+2]);
                }
            }
            return params;
        }
    });

    Path.getDefault = function() {
        return "!/";
    };

    Path.format = function(path,options) {
        var hash = '!'+path;
        if ( options ) {
            hash += '!'+ioQuery.objectToQuery(options);
        }
        return hash;
    };

    return Path;
});