jquery.url.js

/*
 * JQuery URL Parser plugin
 * Developed and maintanined by Mark Perkins, mark@allmarkedup.com
 * Source repository: https://github.com/allmarkedup/jQuery-URL-Parser
 * Licensed under an MIT-style license. See https://github.com/allmarkedup/jQuery-URL-Parser/blob/master/LICENSE for details.
 */

;(function($, undefined) {

    var tag2attr = {
        a       : 'href',
        img     : 'src',
        form    : 'action',
        base    : 'href',
        script  : 'src',
        iframe  : 'src',
        link    : 'href'
    },

	key = ["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","fragment"], // keys available to query

	aliases = { "anchor" : "fragment" }, // aliases for backwards compatability

	parser = {
		strict  : /^(?:([^:\/?#]+):)?(?:\/\/((?:(([^:@]*):?([^:@]*))?@)?([^:\/?#]*)(?::(\d*))?))?((((?:[^?#\/]*\/)*)([^?#]*))(?:\?([^#]*))?(?:#(.*))?)/,  //less intuitive, more accurate to the specs
		loose   :  /^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*):?([^:@]*))?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/ // more intuitive, fails on relative paths and deviates from specs
	},

	querystring_parser = /(?:^|&|;)([^&=;]*)=?([^&;]*)/g, // supports both ampersand and semicolon-delimted query string key/value pairs

	fragment_parser = /(?:^|&|;)([^&=;]*)=?([^&;]*)/g; // supports both ampersand and semicolon-delimted fragment key/value pairs

	function parseUri( url, strictMode )
	{
		var str = decodeURI( url ),
		    res   = parser[ strictMode || false ? "strict" : "loose" ].exec( str ),
		    uri = { attr : {}, param : {}, seg : {} },
		    i   = 14;

		while ( i-- )
		{
			uri.attr[ key[i] ] = res[i] || "";
		}

		// build query and fragment parameters

		uri.param['query'] = {};
		uri.param['fragment'] = {};

		uri.attr['query'].replace( querystring_parser, function ( $0, $1, $2 ){
			if ($1)
			{
				uri.param['query'][$1] = $2;
			}
		});

		uri.attr['fragment'].replace( fragment_parser, function ( $0, $1, $2 ){
			if ($1)
			{
				uri.param['fragment'][$1] = $2;
			}
		});

		// split path and fragement into segments

        uri.seg['path'] = uri.attr.path.replace(/^\/+|\/+$/g,'').split('/');

        uri.seg['fragment'] = uri.attr.fragment.replace(/^\/+|\/+$/g,'').split('/');

        // compile a 'base' domain attribute

        uri.attr['base'] = uri.attr.host ? uri.attr.protocol+"://"+uri.attr.host + (uri.attr.port ? ":"+uri.attr.port : '') : '';

		return uri;
	};

	function getAttrName( elm )
	{
		var tn = elm.tagName;
		if ( tn !== undefined ) return tag2attr[tn.toLowerCase()];
		return tn;
	}

	$.fn.url = function( strictMode )
	{
	    var url = '';

	    if ( this.length )
	    {
	        url = $(this).attr( getAttrName(this[0]) ) || '';
	    }

        return $.url( url, strictMode );
	};

	$.url = function( 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 attr !== undefined ? this.data.attr[attr] : this.data.attr;
            },

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

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

            // return path segments
            segment : function( seg )
            {
                if ( 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 ( 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];
                }
            },

            // do smth if in url match
            // rules is an Object like { match (string): function() {} }
            doIfInUrl : function (rules) {

                if (typeof rules != 'object' && $.isEmptyObject(rules))
                    return;

                var segments = this.data.seg.path;

                if (segments.length > 0) {
                    for (var segment in segments) {
                        if (segments[segment] in rules)
                            try {
                                rules[segments[segment]]();
                            }
                            catch (e) {
                                //console.log(e)
                            }
                    }
                }

            }


        };

	};

})(jQuery);