JSON Patch, Pointer and Merge Patch

1. JSON Pointer syntax

   Reference tokens and escaping of ~ and /.

2. JSON Pointer evaluation

   Resolving a pointer against a JSON document.

3. JSON Patch document structure

   Array of operation objects.

4. JSON Patch operations

   add, remove, replace, move, copy and test.

5. JSON Patch error handling

   Atomic application and failure behavior.

6. JSON Merge Patch

   Merge semantics where null deletes members.

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