Hi Alex,
I trust it works, don't need to test :)
> The same thing happens if, say, someone deletes a paragraph of text that
> another participant is typing in: in-flight typing is nullified.
Just to clarify, because I use "Delta" where I wanted to use "Delta-
Operations", I'm sorry.
If delta has several operations, (for instance a Search & Replace
operation in edtior can generate a Delta with N operations modifying
several different points in document), what really is nullified
(cancelled or noop), are operations themselves and not full delta, if
all operations from a delta are noop'ed then full delta is nullified
and operation count will be Zero, if not Delta will contain operation
transformed to the right document space.
For this rule also I want to ask if this matchs G.Wave OT
implementation
Original Document Space(0)
D1 and D2 were both generated on O(0)
O(0) "Hello world!"
( Dd1 and D2 delete region overlap )
D1: skip 5 delete 2:
ApplyDeltaToDocument: (O(1) 0 "Hello orld!")
D2: skip 5 delete 6:
D2 out of sync
D2 OT against (D1)
D2' = skip 5 delete 6
ApplyDeltaToDocument: (O(2) after D2 = "Hello!")
What means if second delta "delete" over a region previously delete by
source operations for OT, matching region should be "cancel" than can
lead to complete or partial operation cancel,
is this right?
thank you in advance
Kind Regards
jesus
wave-vs.net
On 26 mayo, 07:58, Alex North <[email protected]> wrote:
> Yes. A <thread> element inserted as a child of <blip id="b+a"> concurrently
> with the deletion of the blip element is nullified in transform. You can
> probably reproduce this on Google Wave by opening the same wave in two
> browsers and performing those actions simultaneously.
>
> The same thing happens if, say, someone deletes a paragraph of text that
> another participant is typing in: in-flight typing is nullified.
>
> Cheers,
> Alex
>
> On 25 May 2010 21:27, jesus salas <[email protected]> wrote:
>
>
>
> > Hi,
>
> > I want to check how current implementation for Google Wave is managing
> > "delta cancellation"
>
> > On my current implementation if one delta "A", is send to the server
> > and local copy is "out of sync", (there are some pending deltas to
> > apply on local document from other participants), and one of the
> > pending deltas after applying to local document has remove original
> > "insertion point" for "A", should OT "cancel" "A" delta converting it
> > to "noop"?
>
> > For instance, on below conversation:
>
> > I reply to b+a, but owner send a delta deleting completely "b+a" that
> > has not yet applied to my local document space, then as insertion
> > point does not longer exists should "reply to b+a" delta be cancelled?
>
> > <conversation sort="m">
> > <blip id="b+a"> <!-- first message -->
> > <thread id="3Fsd">
> > <blip id="b+aaa"></blip> <!-- indented reply to "b+a" -->
> > <blip id="b+aab"></blip> <!-- continuation to "b+aaa" -->
> > </thread>
> > <thread id="jjKs">
> > <blip id="b+aba"></blip> <!-- another reply to "b+a" -->
> > </thread>
> > </blip>
> > <blip id="b+b"> <!-- continuation after "b+a" -->
> > <peer id="chess+4342"></peer> <!-- consistency peer id -->
> > <thread inline="true" id="J362">
> > <blip id="b+baa"></blip> <!-- inline reply to "b+b" -->
> > <blip id="b+bab"></blip> <!-- continuation to "b+aaa" -->
> > </thread>
> > <thread inline="true" ... > <!-- another inline reply group,
> > possibly at the same location -->
> > ...
> > </thread>
> > <thread id="9dKx"> <!-- non-inline reply to "b+b" -->
> > ...
> > </thread>
> > </blip>
> > </conversation>
>
> > Kind regards
> > jesus salas
>
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