Has anybody seen any work where CRDTs get insight into conflict resolution using the underlying grammar of whatever text is being written (aka English, Javascript, regex, etc.)? Seems like the conflict resolution could do a better job if it knew the EBNF of the text that was being edited.

Also, any prior art on CRDTs over relational data? I suppose each single field would potentially be an "editable space", but on a long document (say a Javascript code block), updating the whole thing in the db by overwriting it with each edit would not be very efficient. Seems like there could be a datatype that was a little smarter than "text", that could handle more granular updates, that implemented a CRDT index under the hood? I'm working on a VCS for relational data [1] which is more on the not-so-realtime-collaborative-editing end of the spectrum, but would really like to figure out how to handle real-time collaborative editing in this space.

Maybe over WebRTC? I found a little bit of prior art w.r.t. CRDT over WebRTC. [2]

[1]: https://github.com/aquametalabs/aquameta/tree/master/src/pg-... [2]: https://github.com/mattkrick/rich