- Description
- represents an URI node that may occur in a RDF graph.
Note that this is actually an IRI, but the RDF literature speaks of URIs
only, so we chose to use established terminology.
The URI is split into a Namespace and a LocalName,
using the first applicable of the following criteria:
- after the first occurrence of the fragment separator: "#"
- after the last occurrence of the path separator: "/"
- after the last occurrence of the scheme separator: ":"
An URI without a ":" is invalid.
This implies that the Namespace part of an URI must not be empty, while
the LocalName part may be empty.
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