37 lines
999 B
Rust
37 lines
999 B
Rust
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use oxigraph::model::{NamedNode, NamedNodeRef, Term, TermRef};
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use oxigraph::model::vocab::xsd;
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use crate::vocab::rdf;
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pub(crate) fn term_to_named_node(term: &Term) -> Option<&NamedNode> {
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if let Term::NamedNode(node) = term {
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Some(node)
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} else {
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None
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}
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}
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pub(crate) fn term_as_str(term: &Term) -> Option<&str> {
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if let Term::Literal(literal) = term {
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match literal.datatype() {
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xsd::STRING | xsd::NORMALIZED_STRING | rdf::LANG_STRING | rdf::DIR_LANG_STRING => {
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Some(literal.value())
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}
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_ => None,
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}
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} else {
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None
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}
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}
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pub(crate) fn term_ref_as_str(term: TermRef<'_>) -> Option<&str> {
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if let TermRef::Literal(literal) = term {
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match literal.datatype() {
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xsd::STRING | xsd::NORMALIZED_STRING | rdf::LANG_STRING | rdf::DIR_LANG_STRING => {
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Some(literal.value())
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}
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_ => None,
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}
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} else {
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None
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}
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}
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