https://github.com/jessealama/json-pointer

Racket implementation of a JSON Pointer evaluator (RFC 6901)
https://github.com/jessealama/json-pointer

Last synced: 4 days ago
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Racket implementation of a JSON Pointer evaluator (RFC 6901)

• Host: GitHub
• URL: https://github.com/jessealama/json-pointer
• Owner: jessealama
• License: isc
• Created: 2017-12-23T07:52:53.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2024-08-28T13:42:27.000Z (3 months ago)
• Last Synced: 2024-08-28T15:08:40.827Z (3 months ago)
• Language: Racket
• Size: 32.2 KB
• Stars: 2
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: changelog.md
  • License: LICENSE.txt

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README

        
json-pointer

============

    raco pkg install json-pointer

JSON Pointer is a straightforward notation for referring to values embedded within a JSON document. Given a JSON object like this:

    {

        "foo": 5,

        "bar": [ 1, 2 ]

    }

the JSON Pointer expression `/foo` has the value `5`, whereas the expressions `/bar/0` and `/bar/1` have the values `1` and `2`, respectively.

JSON Pointer is an IETF standard [RFC 6901][rfc].

Exports

----------

This library exports five functions:

*Predicates*

* `json-pointer?` checks whether a string adheres to the syntax of JSON Pointer

* `json-pointer-expression?` checks whether a list is a suitable representation of the steps that make up a JSON Pointer expression

*Parsing and rendering*

* `parse-json-pointer`: Produces a JSON Pointer expression from a JSON Pointer

* `expression->pointer`: Produces a JSON Pointer from a JSON Pointer expression

*Evaluation*

* `json-pointer-value` takes two arguments: a JSON Pointer (`json-pointer?`, defined in this library) and a JSON document (`jsexpr?`, provided by the standard `json` module) and evaluates the JSON Pointer within the document.

[rfc]: https://tools.ietf.org/html/rfc6901