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Re: Last Call: <draft-ietf-appsawg-json-patch-08.txt> (JSON Patch) to Proposed Standard

2012-12-14 12:18:37

"4.4.  move" states

   The target location MUST NOT be part of the location defined by
   "from"; i.e., a location cannot be moved into one of its children.

This constraint is backwards. I.e. to disallow moving into a child, 

 { "op": "move", "from": "/a/b/c", "path": "/a/b/c/d" }

this should read:

   The "from" location MUST NOT be a proper prefix of the "path" location;
   i.e., a location cannot be moved into one of its children.

I suggest using "proper prefix" instead of just "part of". For example,
"/a/b/c" is "part of" "q/a/b/c" but such a move should be allowed
because it is not a proper prefix.

As currently stated, moving a value UP would be disallowed. Below, the target 
location is part of the "from" :

 { "op": "move", "from": "/a/b/c/d", "path": "/a/b/c" }

-- 
David J. Biesack | Principal API Architect, SAS | @davidbiesack | 919-531-7771 
| www.sas.com

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