Re: [office-collab] How do we count? - September 26, 2012

[Thorsten Behrens <tbehrens@suse.com>]

Robin LaFontaine wrote:
> John is I think correct in identifying a complexity here. It is not to do with
> the use of XML representation, it is to do with the fact that a deleted
> paragraph (say) is part of the counting before it is deleted but is not part of
> the counting after it has been deleted.
> 
Yes, but as outlined, that can be resolved with constant space and
time overhead during import/export.

> On input the application needs to work out the numerical references not only
> for the actual document as read in but all its previous states as changes were
> made. I think this will become clearer when there are some more complex worked
> examples - it is almost impossible to work out without working code.
> 
There should actually be no difference whatsoever to existing change
tracking implementations - that translate the xml input into a
special, internal DelThisStuff action, referencing the rather
uniquely identified paragraph given by a numerical index.

If you then subsequently adjust your index counters (for relative
indices), or keep counting (for absolute ones) really shouldn't
matter a bit.

> Note: There seems to be a difference between collaboration (which references
> the components in the document as it was before a change) rather than CT (which
> references components in the document after the change). I am not sure which
> way MCT works, I thought it was CT according to the earlier presentations, but
> the Select Committee had all their examples as collaboration. It would be good
> to have that clarified.
> 
I was working under your 2nd assumption indeed (references relative
to final document). Maybe that is the source for the misunderstanding?

Cheers,

-- 

Thorsten Behrens

SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg; GF: Jeff
Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg)

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