# RDFa processor library (WIP)

Rust and wasm library to extract rdf statements (in n-triples format) from an html file
based on rdfa annotations.

## Examples

```rust
use graph_rdfa_processor::RdfaGraph;
    let html = r#"
    <div prefix="foaf: http://xmlns.com/foaf/0.1/" about="http://www.example.org/#somebody" rel="foaf:knows">
        <p about="http://danbri.org/foaf.rdf#danbri" typeof="foaf:Person" property="foaf:name">Dan Brickley</p>
	  </div>
    "#;
    let base = "http://example.com"
    let well_known_prefix = Some("http://example.org/.well_known");

    RdfaGraph::parse_str(html, base, well_known_prefix).unwrap()

```

```js
 <script type="module">
    import init, {html_to_rdfa} from "./rdfa-wasm/pkg/rdfa_wasm.js";

    async function run() {
      await init();
      let html =`
        <div prefix="foaf: http://xmlns.com/foaf/0.1/" about="http://www.example.org/#somebody" rel="foaf:knows">
            <p about="http://danbri.org/foaf.rdf#danbri" typeof="foaf:Person" property="foaf:name">Dan Brickley</p>
	      </div>
      `;
      let base = "http://example.com"
      let well_known_prefix = "http://example.org/.well_known";
      let res = html_to_rdfa(html, base, well_known_prefix);

    }
    run();
  </script>

```

- covers:

  - [RDFa 1.1 Primer - Third Edition](https://www.w3.org/TR/rdfa-primer/)
  - [RDFa Core](https://www.w3.org/TR/rdfa-core/)
  - [Earl-Reports](https://rdfa.info/earl-reports/#RDFa-rdfa1.1-tests-for-html5)

- used [RDFa/Play](https://rdfa.info/play/) for comparing.
- [Demo](https://nbittich.github.io/graph-rdfa-processor/)

### WIP

The plan is to make as much tests as possible, and fix the bugs along the way.

### KNOWN ISSUES

- White space not preserved. See test 0329.