RK-J

data-source will contain o-url of the internal link from new document

Scheme:

updateAllInternalLinksWithDataSource(oldDocContent, newDocContent):
    - newHrefLinks = getAllLinks(newDocContent);
    - oldHrefLinks = getAllLinks(oldDocContent);
    - for(i=0; i < oldHrefLinks.size(); i++):        
        - oldHrefLink = oldHrefLinks[i];
        - if(oldHrefLink.startsWith('document/'):
                - oldHrefLink.setAttribute('data-source', newHrefLinks[i]);