Diff two objects to create a patch

[tim-lyon]

Is your feature request related to a problem? Please describe.
I'd love to use yyjson on a project, but I need the ability to create patches from the diff of two JSON documents.
Currently I would need to use nlohmann/json specifically for this feature.
Thank you for your consideration 🙏

Describe the solution you'd like

yyjson_doc *patch = yyjson_diff(doc1, doc2);

Describe alternatives you've considered
https://json.nlohmann.me/api/basic_json/diff/

[ibireme]

Since the objects and arrays are stored as linear data structures, creating an efficient diff algorithm could be quite complex or potentially slow. I'll look into it when I have more time.

[tim-lyon]

Thanks @ibireme
For reference, the nlohmann implementation is only 130 LoC, and for my purpose at least, a similar implementation would be better than none. There are definitely opportunities for optimisation though.