RDF XML 1.1 langString serialization #724
Description
Description:
According to RDF XML 1.1 syntax grammar, literal property element should either be languaged or hold a datatype, but not both.
For element e, and the text event t. The Unicode string t.string-value SHOULD be in Normal Form C [NFC]. If the rdf:datatype attribute d is given then o := typed-literal(literal-value := t.string-value, literal-datatype := d.string-value) otherwise o := literal(literal-value := t.string-value, literal-language := e.language) and the following statement is added to the graph:
Current issue:
RDF XML serialization currently adds both xml:lang attribute and rdf:datatype for languaged string.
# Input file
@prefix show: <http://example.org/vocab/show/> .
show:218 show:localName "That Seventies Show"@en . <!-- Output file -->
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:show="http://example.org/vocab/show/">
<rdf:Description rdf:about="http://example.org/vocab/show/218">
<show:localName rdf:datatype="http://www.w3.org/1999/02/22-rdf-syntax-ns#langString" xml:lang="en">That Seventies Show</show:localName>
</rdf:Description>
</rdf:RDF>Expected behavior:
<!-- Output file -->
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:show="http://example.org/vocab/show/">
<rdf:Description rdf:about="http://example.org/vocab/show/218">
<show:localName xml:lang="en">That Seventies Show</show:localName>
</rdf:Description>
</rdf:RDF>