[xwiki-devs] Parser Issuer

[Vincent Massol]

Hi Malaka,

On Jul 1, 2008, at 6:20 AM, malaka ekanayake wrote:

> Hi vincent
>
> Now I'm working on the costume implementation of the IDocument  
> Partitioner which uses the XDOM parser.
> But in order to to  register partitions  with  the   
> IDocument,requires the offset and the length of each token returned  
> by the parser.

Did you get Marius' input on this?

I remember I said:

"
* Re the offset and lengthn I think this is something interesting that  
could be added to the new rendering module. Since the underlying  
parsers (wikimodel, doxia) don't pass this information to us we would  
need to compute it. It would allow us to answer the question "what  
block is located at location NN in the source document".
* We need to get Marius' input since he's working on the new WYSIWYG  
editor for XWiki and maybe he has some similar needs/issues.
"

The reason I said this is because if the only requirement is for your  
use case then you could easily compute the offset/lenght for your use  
case only (by writing a very simple Listener and running  
XDOM.traverse(yourllistener). However if the need is generic then it  
makes sense to have it in the rendering component itself.

I'm still hesitating about the generic need about this.

If we agree to add it in the rendering component then I can implement  
it for you.

Another question for you: once you have this information what's the  
algorithm for finding the block that corresponds to a given location  
in the source document? Dichotomy on the tree?

Thanks
-Vincent

> But the current implementation of the parser don't have that  
> information.Do I need to look at that issuer as well or what?
>  I have very little understanding of the implementation of the  
> parser and I will be  difficult  for me to implement that  
> functionality.
>
> Vincent can you help me on this  issuer.
>
> -- Malaka Ekanayake 
> CSE UOM