Answered: Greasemonkey,jquery and param from links to new link

Question

Hi all,

I'm pretty new to jquery and greasemonkey. So if someone could help me out it would be great.

Here is an example url I get values from.

Org: http://www.example.com/index.php?value1=blabla1&sid=blabla2&mid=blabla3 Result I want: link://www.example.com/blabla1/data/blabla2/blabla3.ext

example: var sid=document.URL.substring(document.URL.indexOf('sid=')+15); // How do I set the lenght of blabla2 ? -7 ?

Anyway, Hopefully someone understand what I mean and can help me out alittle.

Answer 1

Use regular-expression searches to get the values. If you know the param names in advance, it's more straightforward than it looks...

var searchableStr   = document.URL + '&';

var value1  = searchableStr.match (/[\?\&]value1=([^\&\#]+)[\&\#]/i) [1];
var sid     = searchableStr.match (/[\?\&]sid=([^\&\#]+)[\&\#]/i)    [1];
var mid     = searchableStr.match (/[\?\&]mid=([^\&\#]+)[\&\#]/i)    [1];

.
The last bit is then something like:

var domain  = searchableStr.match (/\/\/([w\.]*[^\/]+)/i) [1];

var newlink = '//' + domain + '/' + value1 + '/data/' + sid + '/' + mid + '.ext';  

.

 .

PS: It's only slightly more work if you don't know the names in advance.
PPS: This is educational code. Beware of extra spaces and malicious data, when using in the wild.