NAME¶
libraptor2 - Raptor RDF syntax library 2.0
SYNOPSIS¶
#include <raptor2.h>
world=raptor_new_world();
raptor_parser *p=raptor_new_parser(world,rdfxml);
raptor_set_statement_handler(p,NULL,print_triples);
raptor_uri *file_uri=raptor_new_uri(world,http://example.org/);
raptor_parser_parse_file(p,file_uri,base_uri);
raptor_parser_parse_uri(p,uri,NULL);
raptor_free_parser(p);
raptor_free_uri(file_uri);
raptor_free_world(world);
cc prog.c -o prog `pkg-config raptor2 --cflags` `pkg-config raptor2 --libs`
DESCRIPTION¶
The
Raptor library provides a high-level interface to a set of parsers
and serializers that generate Resource Description Framework (RDF) triples by
parsing syntaxes or serialize the triples into syntaxes.
The supported parsing syntaxes include RDF/XML, N-Triples, Turtle, TRiG, RSS tag
soup (including all RSS and Atoms), GRDDL, RDF/JSON, RDFa and the serializing
syntaxes include RDF/XML (3 varieties), N-Quads, N-Triples, Turtle, RSS 1.0,
Atom 1.0, GraphViz DOT and RDF/JSON. The RDF/XML parser can use either
expat or
libxml XML parsers for providing the SAX event stream.
The library functions are arranged in an object-oriented style with
constructors, destructors and method calls. The statements and error messages
are delivered via callback functions.
Raptor also contains classes to support the RDF graph triples: a statement
object containing term objects and support for RDF URI-References for both
parsing them and resolving / retrieval of URIs.
It some utility classes such as an I/O Stream abstraction for supporting reading
and writing to and from a variety of locations, AVL Trees, String buffers and
Sequences.
Raptor uses Unicode strings for RDF literals and URIs and preserves them
throughout the library. It uses the UTF-8 encoding of Unicode at the API for
passing in or returning Unicode strings. It is intended that the preservation
of Unicode for URIs supports Internationalized Resource Identifiers (IRIs).
API REFERENCE¶
See the HTML API docs that may be installed system wide at
/usr/share/gtk-doc/html/raptor2/ or on the web at
http://librdf.org/raptor/api/
API CHANGES¶
See the Raptor API docs changes section at
http://librdf.org/raptor/api/raptor-changes.html
and the upgrading information when converting from libraptor(1) code at
http://librdf.org/raptor/UPGRADING.html
RDF/XML Syntax (Revised), Dave Beckett (ed.) W3C Recommendation,
http://www.w3.org/TR/rdf-syntax-grammar/
N-Triples, in
RDF Test Cases, Jan Grant and Dave Beckett (eds.)
W3C Recommendation,
http://www.w3.org/TR/rdf-testcases/#ntriples
Turtle - Terse RDF Triple Language, Dave Beckett,
http://www.dajobe.org/2004/01/turtle/
RSS 0.91 spec revision 3, Dan Libby, Netscape,
http://my.netscape.com/publish/formats/rss-spec-0.91.html
RDF Site Summary (RSS) 1.0,
http://purl.org/rss/1.0/spec
Atom 1.0 syndication format, RFC 4287,
http://www.ietf.org/rfc/rfc4287.txt
Gleaning Resource Descriptions from Dialects of Languages (GRDDL),
Dan Connolly (ed.), W3C Recommendation, 2007-09-11,
http://www.w3.org/TR/2007/REC-grddl-20070911/
RDFa in XHTML: Syntax and Processing, Ben Adida, Mark Birbeck, Shane
McCarron, Steven Pemberton (eds.)
W3C Recommendation, 2008-10-14,
http://www.w3.org/TR/2008/REC-rdfa-syntax-20081014/
SEE ALSO¶
rapper(1)
AUTHOR¶
Dave Beckett -
http://www.dajobe.org/