http-request PUT

i want to do a checkin from an html-site.
i already implemented the checkout so i roughly know how to implent
http-requests.
right now i nearly finished the task, i've got just one problem within the
PUT methode.

during the PUT you have to send a body which is a diff.
but i don't know how svn solved this problem.
i searched through the sources of svn but it was written in c (and little
bit to complex to get an overview) and in multiple steps.
does anybody know how to create the necessary diff or any other ways to
solve this problem?
Received on 2014-07-22 07:24:29 CEST