srdf::srdf_parser

Function not

Source 
pub fn not<RDF, P>(parser: P) -> Not<P>
where
    RDF: FocusRDF,
    P: RDFNodeParse<RDF>,
Expand description

Not parser succeeds if the parser fails and viceversa Example:

use iri_s::{IriS, iri};
use srdf::SRDFGraph;
use srdf::{literal, not, RDFFormat, RDFNodeParse};

let graph = SRDFGraph::new();
let x = iri!("http://example.org/x");
assert_eq!(not(literal()).parse(&x, graph).unwrap(), ())