Convert German characters to UTF-8.

Hello Experts,

We have a scenario in which one of the field receives a url which contains German characters, here we have to encode only German characters along with underscore(_) to UTF-8 but not the complete url.

URL example:

https://scn.sap.com/abc-/germancharacters/%d&&devsystem/_p_&&client-123?

from the above url we have to encode only germancharacters and (_) but not the complete url, also will it work if we encode complete url?

Please suggest any UDF to encode the url.

thanks in advance