Re: JSON-LD, problem with numbers on a non-US system

[Andy Seaborne]

(conversation moved to jsonld-java/jsonld-java/issues/131 - more details 
there)

It is wrong for UK as well.  There are two problems.
The "1,0E2" is surface appearance.

The universal problem is the E -- a xsd:double.

Try with the 100.0 in "" -- @value is the lexical form.
http://www.w3.org/TR/json-ld/#typed-values

{
    "@id": "http://www.ex.com/product"; ,
    "http://schema.org/price"; : {
        "@type": "http://www.w3.org/2001/XMLSchema#decimal"; ,
        "@value": "100.00"
        }
}

        Andy

On 16/12/14 23:18, François-Paul Servant wrote:
Hi,

there is a problem when reading JSON-LD containing numbers on a non-US system. 
See a test program below. I found that this is caused by a bug in
com.github.jsonldjava.core.RDFDataset
and I submitted an issue:
https://github.com/jsonld-java/jsonld-java/issues/131

Best,
fps

import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;

import org.junit.Test;

import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;

public class NumbersOnNonUSSystemJsonLDBugTest {
@Test
public final void test() {
        try {
                InputStream is = new 
ByteArrayInputStream(jsonLDString().getBytes("UTF-8"));
                Model m = ModelFactory.createDefaultModel();
                m.read(is, null, "JSON-LD");
                m.write(System.out,"TTL");
                // on a French system, you get
                // WARN  org.apache.jena.riot - Lexical form '1,0E2' not valid 
for datatype http://www.w3.org/2001/XMLSchema#decimal
                // <http://www.ex.com/product>
                //                      <http://schema.org/price>  
"1,0E2"^^<http://www.w3.org/2001/XMLSchema#decimal> .

        } catch (UnsupportedEncodingException e) { e.printStackTrace();}
}

String jsonLDString() {
        return
                        "{" +
          "\"@id\": \"http://www.ex.com/product\","; +
          "\"http://schema.org/price\": {" +
            "\"@type\": \"http://www.w3.org/2001/XMLSchema#decimal\","; +
            "\"@value\": 100.00" +
          "}}}";
}
}