cricklet / operational-transform-demo Goto Github PK

Could you add better documentation and instruction on how to run and build the project locally?

@cricklet
Undo should support IP2(operation transform an do-undo pair should be the same) and IP3(a and b are concurrent operation, a- is inverse operation of a, then a-' should be equal to a'-).
Suppose two users deletes the same character b from 'abc', then undo their operations. If IP3 is not satisfied, the result should be 'abbc'. In pure text system, it's tolerable. But in some complicate system like spreadsheet collaborative editing system, it may cause serious problem.
I search for ot control algorithm to support IP2 and IP3. They ether need ET function(hard to implement), or is too hard to implement, Context based control algorithm is the only algorithm only need IT function to satisfy IP2 and IP3 I know, and it saves all original operation and their context vector, and rerun all transformations if needed(I think this replaced ET function).
Do you know some good control algorithm too resolve IP2 and IP3 problem?