Function purl

purl.js:197–247

( url, strictMode )

    }

    function purl( url, strictMode ) {
        if ( arguments.length === 1 && url === true ) {
            strictMode = true;
            url = undefined;
        }
        strictMode = strictMode || false;
        url = url || window.location.toString();

        return {

            data : parseUri(url, strictMode),

            // get various attributes from the URI
            attr : function( attr ) {
                attr = aliases[attr] || attr;
                return typeof attr !== 'undefined' ? this.data.attr[attr] : this.data.attr;
            },

            // return query string parameters
            param : function( param ) {
                return typeof param !== 'undefined' ? this.data.param.query[param] : this.data.param.query;
            },

            // return fragment parameters
            fparam : function( param ) {
                return typeof param !== 'undefined' ? this.data.param.fragment[param] : this.data.param.fragment;
            },

            // return path segments
            segment : function( seg ) {
                if ( typeof seg === 'undefined' ) {
                    return this.data.seg.path;
                } else {
                    seg = seg < 0 ? this.data.seg.path.length + seg : seg - 1; // negative segments count from the end
                    return this.data.seg.path[seg];
                }
            },

            // return fragment segments
            fsegment : function( seg ) {
                if ( typeof seg === 'undefined' ) {
                    return this.data.seg.fragment;
                } else {
                    seg = seg < 0 ? this.data.seg.fragment.length + seg : seg - 1; // negative segments count from the end
                    return this.data.seg.fragment[seg];
                }
            }

        };

    }
    
    purl.jQuery = function($){
        if ($ != null) {