jquery获取url参数插件

官方网址:

https://github.com/allmarkedup/jQuery-URL-Parser

 

 <script type="text/javascript" src="/Script/jquery.url.js"></script>

 

$.url('http://allmarkedup.com?sky=blue&grass=green').param('sky'); // returns 'blue' 

/*
* 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];
                }
            }
            
        };
        
};

})(jQuery);