Semantic concepts support?

[domino-pablo-rodriguez]

I’m currently evaluating CUE to use it for both yaml validation and semantic inference (similar to https://a.ml/docs/). From the documentation it seems like assigning a semantic meaning and querying is not supported. An example would be: be able to mark certaing bits of a yaml/json configuration file as a “Secret” (and define other concepts that can inherit from this, such as a password, token, keys, etc) and be able to query them (for example to redact them). This semantic meaning is orthogonal to the schema values (a string could be a secret, or a more complex struct). So my question is (maybe to the owners of the spec), do you envision that CUE could fit this use case?

[eadlam]

@domino-pablo-rodriguez, Are you asking if cue can consume json/yaml and produce new json/yaml with additional fields based on the original?

main.cue

package main

// stub for imported yaml/josn
let data = {
    name: "Guy"
    email: "guy@gmail.com"
    secret: "onetwothree"
}

// Extensions
{
    data
    extensions: {
        password: "pw_\(data.secret)"
    }
}

cli

$ cue export example.com:main
{
    "extensions": {
        "password": "pw_onetwothree"
    },
    "name": "Guy",
    "email": "guy@gmail.com",
    "secret": "onetwothree"
}

[myitcv]

@domino-pablo-rodriguez I think you are looking for attributes, but if you can expand with an example (in pseudo code) then we might be able to help further.