Read an ODRL policy as sentences

PROSE: Prose Rendering for ODRL Semantic Representation. ds-prose-rs reads an ODRL JSON-LD policy and writes it as plain-language sentences that say who may, must not or must do what, and under which conditions. It is a Rust library with a Yew component, a WebAssembly bridge, and an Angular component. It does not decide whether an action is allowed, and it ships no stylesheet for the rendered sentences.

A policy and its sentences #

The policy below is a fixture of the repository. The sentences under it are the renderer's output for that policy, stored in site/content/examples/offer.html. A Rust test renders the policy again on every cargo test and fails if the stored output is stale. The page styles them with the example stylesheet from the CSS hooks pages.

Input #

{
  "@context": "http://www.w3.org/ns/odrl.jsonld",
  "@type": "Offer",
  "uid": "http://example.com/policy:1010",
  "profile": "http://example.com/odrl:profile:01",
  "assigner": "http://example.com/org:abc",
  "permission": [{
    "target": "http://example.com/asset:9898.movie",
    "action": "display",
    "constraint": [{
      "leftOperand": "dateTime",
      "operator": "lt",
      "rightOperand": { "@value": "2026-12-31", "@type": "xsd:date" }
    }],
    "duty": [{
      "action": "attribute",
      "target": "http://example.com/asset:9898.movie"
    }]
  }]
}

Rendered #

Where to go #

• Yew demo: the component in the browser, with the editor and the strict validation.
• Angular demo: the read-only Angular component.
• Yew documentation: install, interface, styling, validation, CSS hooks.
• Angular documentation: install, interface, styling, validation, CSS hooks.

Install #

cargo add prose-yew

npm install @ds-labs/prose-angular

Where it runs #