JSON Pointers single prefix limitation

[chrisgblr]

Would be very helpful if this limitation could be lifted:

Important: You can only use a pointer prefix once in a class. For example, you can't use /user and /user/name in the same class.

[JulianBissekkou]

@simc Can you explain why that is? I never used json pointers before, but using multiple pointers sounds like a valid use case for me 🤔

[simc]

@JulianBissekkou pointers basically allow you easily and very efficiently unwrap nested json. Check out the example in the readme.

Using a pointer prefix multiple times is definitely a valid use case but very difficult to implement. Crimson has the distinct advantage to only need a single pass to parse bytes directly to objects. To use a prefix multiple times while maintaining the single pass advantage would require a complex state machine to keep track of different paths. I'm currently not sure how to implement it and whether it will be faster or slower than parsing the entire objects.