[annotator-dev] Question about offset

Tue May 8 08:49:11 UTC 2012

Hi again,
here is a demo of the way the students implemented our annotation service:

http://pcai042.informatik.uni-leipzig.de/~swp12-9/vorprojekt/index.php?annotation_request=http%3A%2F%2Fwww.w3.org%2FDesignIssues%2FLinkedData.html%23hash_10_12_60f02d3b96c55e137e13494cf9a02d06_Semantic%2520Web

The parameter uses a NIF URI (see my last email) and then highlights the 
part, which was marked. Currently, a PHP server-side component fetches 
the html from the original source, rewrites the css and image uris und 
then inserts the highlighting divs. In the future,  additional 
Javascript will be added to further annotate and edit the comments.  
Also, hashes will be used for sessions with no need to log in and to 
install a bookmarklet.

We encountered quite a big problem however:
In the underlying HTML characters are, e.g. "Qualität" , but when 
you get the selection via Javascript (e.g.  window.getSelection() or 
innerHTML() ) the escaping is already resolved and it is normally 
impossible to get the HTML as is with Javascript. Did you have the same 
problem? Did you find a fix for it?

The student project will end in about 4 weeks and then we will disclose 
all sources on sourceforge.net and can see, if there are compatible 
parts with Annotateit.

All the best,
Sebastian

-- 
Dipl. Inf. Sebastian Hellmann
Department of Computer Science, University of Leipzig
Projects: http://nlp2rdf.org , http://dbpedia.org
Homepage: http://bis.informatik.uni-leipzig.de/SebastianHellmann
Research Group: http://aksw.org