rdf_read_turtle(+Input,
-Triples, +Options)Read a stream or file into a set of triples or quadruples (if faced with
TriG input) of the format
rdf(Subject, Predicate, Object [, Graph])
The representation is consistent with the SWI-Prolog RDF/XML and
ntriples parsers. Provided options are:
- base_uri(+BaseURI)
- Initial base URI. Defaults to file://<file>
for loading files.
- anon_prefix(+Prefix)
- Blank nodes are generated as <Prefix>1, <Prefix>2,
etc. If Prefix is not an atom blank nodes are generated as
node(1), node(2), ...
- format(+Format)
- One of
auto (default), turtle or trig.
The auto mode switches to TriG format of there is a
{ before the first triple. Finally, of the format is
explicitly stated as turtle and the file appears to be a
TriG file, a warning is printed and the data is loaded while ignoring
the graphs.
- resources(URIorIRI)
- Officially, Turtle resources are IRIs. Quite a few applications however
send URIs. By default we do URI
->IRI mapping because
this rarely causes errors. To force strictly conforming mode, pass iri.
- prefixes(-Pairs)
- Return encountered prefix declarations as a list of Alias-URI
- namespaces(-Pairs)
- Same as
prefixes(Pairs). Compatibility to rdf_load/2.
- base_used(-Base)
- Base URI used for processing the data. Unified to
[] if there is no base-uri.
- on_error(+ErrorMode)
- In
warning (default), print the error and continue parsing
the remainder of the file. If error, abort with an
exception on the first error encountered.
- error_count(-Count)
- If
on_error(warning) is active, this option cane be used to
retrieve the number of generated errors.
| Input | is one of stream(Stream), atom(Atom),
a http,
https or file url or a filename specification
as accepted by absolute_file_name/3. |
