RDF package
This commit is contained in:
Vitor Santos Costa
parent
7b9ab9252c
commit
8d3b9ad16c
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[Sep 10 2009]
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* MODIFIED: Dropped support for old RDF Bag/Alt/Seq syntax.
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* ENHANCED: Speedup processing of xml: properties in RDF/XML parser.
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* ENHANCED: Compile-time expansion of the term-rewriter that is used by
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the RDF/XML parser.
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[Aug 20 2009]
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* FIXED: Support for \U in rdf_ntriples.pl (used to parse W3C test results)
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[Jul 30 2009]
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* CLEANUP: Modernise rdf.pl and rdf_db.pl module handling.
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[Jul 2 2009]
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* FIXED: handle rdf:datatype earlier (compliant to the revised RDF syntax
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specs). This fixes empty strings using
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<rdfs:label rdf:datatype="&xsd;string"/>
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Spotted by Chris Mungall
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[Jun 22 2009]
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* FIXED: avoid bnodes in types nodes for rdf_write_xml/2.
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[Jun 9 2009]
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* FIXED: RDF typed-nodes (<ns:Class ...>...</ns:Class> descriptions) if the expansion of ns contains %-escaped characters. Jochem Liem.
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[Mar 19 2009]
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* CLEANUP: Removed all trailing whitespace from all source-files. This avoids many GIT (merge) warnings.
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[Mar 12 2009]
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* MODIFIED: Renamed concat_atom/2,3 into atomic_list_concat/2,3 for compatibility. Moved the old predicates into library(backcomp). It is adviced to update your code, but 99% of the code will remain working because the old definitions are autoloaded.
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[Mar 6 2009]
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* FIXED: rdf_write_xml with different encodings. Patch by Keri Harris.
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[Jan 21 2009]
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* FIXED: RDF writer: write valid XML if the namespace entity contains characters
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that must be %-escaped. Jacopo Urbani.
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[Jan 13 2009]
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* FIXED: RDF/XML could save illegal XML if multiple namespaces are used
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for predicates where one namespace is a prefix of another one. Jacopo Urbani.
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[Dec 19 2008]
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* ADDED: Pass content_length through process_rdf/3
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[Sep 11 2008]
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* PORT: Add AC_PREREQ to configure.h for systems that auto-select autoconf
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versions. After tip by Ulrich Neumerkel.
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[Aug 11 2008]
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* INSTALL: Remove all configure files from the git repository
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[Apr 18 2008]
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* MODIFIED: Renamed hash_term/2 to term_hash/2. Added hash_term/2 to
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library(backcomp), so most code should not notice this.
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[Feb 28 2008]
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* FIXED: rdf_write_xml/2 loops if it encounters an rdf:Bag.
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[Feb 18 2008]
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* FIXED: More fixes for proper handling of rdf:Bag
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[Feb 13 2008]
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* FIXED: Emit rdf:Bag attributes (etc.) as rdf:li
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* FIXED: possible failure in rdf_write_xml with http://t-d-b.org?
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[Jan 14 2008]
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* FIXED: Bug#343: Handling bnodes in rdf_write_xml. Yver Raimond.
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* FIXED: Added support for rdf:NodeID to rdf_write_xml/2. Yves Raimond.
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[Dec 13 2007]
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* FIXED: library(rdf_write) to deal with operators. Related to Bug#332
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Oct 29, 2007
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* FIXED: extract namespaces used in typed literals. Yves Raimond.
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Jul 9, 2007
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* FIXED: xml:lang with empty literals. Jochem Liem.
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Jun 14, 2007
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* FIXED: return rdf:parseType="Literal" as literal of type
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rdf:XMLLiteral.
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Jan 18, 2007
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* ADDED: embedded(Bool) option to process_rdf/3
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Jun 25, 2006
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* CLEANUP: Delete unused global variable.
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Jun 5, 2006
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* FIXED: use UTF-8 decoder from new library(utf8). Our own internal one
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was broken.
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Apr 25, 2006
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* FIXED: decoding of unicode-URIs using UTF-8 over %XX%XX.
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Apr 13, 2006
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* ADDED: library rdf_write to write an RDF file from a list of triples.
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Dec 8, 2005
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* FIXED: xmlns attributes in descriptions. Bijan Parsia
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Nov 23, 2005
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* ADDED: option db(DB) to parse_rdf/2.
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Nov 10, 2005
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* COMMENT: Comment use of IRI
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Jul 7, 2005
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* ADDED: Pass entity(Name, Value) to XML parser
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Jul 5, 2005
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* FIXED: Perform proper URI decoding to Unicode atoms
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Jul 4, 2005
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* FIXED: Make "make check" work from the build directory.
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Mar 31, 2005
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* FIXED: memory leak in process_rdf/2
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Mar 29, 2005
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* FIXED: dataType --> datatype (Vangelis Vassiliadis)
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Oct 21, 2004
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* FIXED: Bug#196: avoid need for autoloading. Sandro Hawke.
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Sep 13, 2004
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* ADDED: namespaces(-NameSpaces) option to load_rdf/3 and process_rdf/3
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to query the document namespace declarations.
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Aug 13, 2004
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* MODIFIED: load_rdf/3 no longer returns resources as Prefix:URI, but
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instead returns the plain atoms.
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Jul 31, 2004
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* ADDED: converted rdf_nt.pl into public rdf_ntriples.pl library for
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loading data in the W3C ntriple format.
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Jun 29, 2004
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* FIXED: sharing code for blank nodes. Broken in recent cleanup.
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Jun 17, 2004
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* CLEANUP: start/end of loading a file, use option/3 from library
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Apr 21, 2004
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* ADDED: Support for xml:lang and rdf:dataType attributes.
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* INTERNAL: Use global variables rather than assert/retract for
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keeping track of the state for process_rdf/3.
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Nov 29, 2003
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* ADDED: warning for incorrect and multiple definitions of rdf:ID.
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Maarten Menken.
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Nov 7, 2003
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* ADDED: process_rdf/3: allow processing from a stream
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Oct 6, 2003
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* MODIFIED: synopsis of process_rdf/3 to
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process_rdf(+File, :OnTriples, +Options) for consistency and to allow
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extending the option list. Old calls are mapped to the new.
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* Added option blank_nodes(share) to load_rdf/3 and process_rdf/3.
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Aug 18, 2003
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* Guarantee that anonymous ids start with __
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Mar 20, 2003
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* Fixed exception in cleanup. Dominique de Waleffe.
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Feb 28, 2003
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* ADDED: Use BaseURI to create non-conflicting anonymous resources.
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* FIXED: rdf_parser:global_id to ignore xml:base for absolute URIs
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Jan 17, 2003
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* FIXED: online.pl (web frontend) to avoid using goal/1 option for the
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xml parser. Now uses 4.0.8 clib memfile library primitives.
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* FIXED: process_rdf/3, Peter Marks.
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* ADDED: parseType="Collection", satisfying the W3C Working Draft
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8 November 2002.
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################################################################
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# Sumary of incompatibilities:
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#
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# Many problems in nested bag handling, changing output of
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# suite/t5.rdf
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#
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# Content of Alt-container was incorrectly rendered as rdf:li
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# instead of rdf:_1, rdf:_2, etc (suite/t27.rdf).
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################################################################
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* ADDED: Translate rdf:li predicates into _1, _2, etc.
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* FIXED: parseType=Literal to avoid extraneous [..] around the value
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Oct 28, 2002
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* CLEANUP: pass base-uri as attribute, preparing for xml:base and making
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the parser ready for multi-threading.
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Sep 16, 2002
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* MODIFIED: Allow for unqualified attribute-names
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* ADDED: "make check"
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Older entries
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* FIXED: Type-exception in atom_chars/2
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* FIXED: handling mixed <name>literal</name> and <name>object</name>
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(space canonisation problem).
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* CGI Demo: report errors generated before a fatal exception.
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* FIXED: handling of propertyElt of the form
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rdf:ID="myid" rdf:parseType="Resource"
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* For objects, map NameSpace:Local to the simple concatenation of the two.
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This implies:
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# Subjects are always atoms
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# Predicates are NameSpace:LocalName or simply Name
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# Objects are atoms (URI) or literal(Value)
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* Warn on things that cannot be converted into an RDF-object rather then
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failing silently.
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* Removed some undesirable choice-points.
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@ -0,0 +1,129 @@
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################################################################
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# SWI-Prolog `RDF' package
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# Author: Jan Wielemaker. jan@swi.psy.uva.nl
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# Copyright: LGPL (see COPYING or www.gnu.org
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################################################################
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.SUFFIXES: .tex .dvi .doc .pl
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SHELL=@SHELL@
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ifeq (@PROLOG_SYSTEM@,yap)
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prefix = @prefix@
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exec_prefix = @exec_prefix@
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ROOTDIR = $(prefix)
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EROOTDIR = @exec_prefix@
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srcdir=@srcdir@
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BINDIR = $(EROOTDIR)/bin
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LIBDIR=@libdir@
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YAPLIBDIR=@libdir@/Yap
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SHAREDIR=$(EROOTDIR)/share/Yap
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PL=@INSTALL_ENV@ $(DESTDIR)$(BINDIR)/yap $(DESTDIR)$(YAPLIBDIR)/startup.yss
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LN_S=@LN_S@
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EXDIR=$(LIBDIR)/examples/plunit
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INSTALLDIR=$(SHAREDIR)
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else # SWI
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srcdir=.
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PLBASE=@PLBASE@
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PLARCH=@PLARCH@
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PL=@PL@
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XPCEBASE=$(PLBASE)/xpce
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PKGDOC=$(PLBASE)/doc/packages
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PCEHOME=../xpce
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LIBDIR=$(PLBASE)/library
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INSTALLDIR=$(LIBDIR)
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endif
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DOCTOTEX=$(PCEHOME)/bin/doc2tex
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PLTOTEX=$(PCEHOME)/bin/pl2tex
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RUNTEX=../../man/runtex
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LATEX=latex
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DOC=rdf2pl
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TEX=$(DOC).tex
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DVI=$(DOC).dvi
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PDF=$(DOC).pdf
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HTML=$(DOC).html
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INSTALL=@INSTALL@
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INSTALL_PROGRAM=@INSTALL_PROGRAM@
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INSTALL_DATA=@INSTALL_DATA@
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LIBPL= $(srcdir)/rdf.pl $(srcdir)/rdf_parser.pl $(srcdir)/rdf_triple.pl $(srcdir)/rewrite.pl \
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$(srcdir)/rdf_ntriples.pl $(srcdir)/rdf_write.pl
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XPCEPL= $(srcdir)/rdf_diagram.pl
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all:
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@echo "Nothing to do for this package"
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install: $(LIBPL) xpce-install
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$(INSTALL_DATA) $(LIBPL) $(DESTDIR)$(INSTALLDIR)
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$(PL) -f none -g make -t halt
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ln-install::
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@$(MAKE) INSTALL_DATA=../ln-install install
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xpce-install: $(XPCEPL)
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if [ -d $(DESTDIR)$(XPCEBASE) ]; then \
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$(INSTALL) -m 644 $(XPCEPL) $(DESTDIR)$(XPCEBASE)/prolog/lib; \
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fi
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rpm-install: install
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pdf-install::
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-$(INSTALL_DATA) $(DOC).pdf $(DESTDIR)$(PKGDOC)
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html-install::
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-$(INSTALL_DATA) $(DOC).html $(DESTDIR)$(PKGDOC)
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uninstall:
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(cd $(PLBASE)/library && rm -f $(LIBPL))
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$(PL) -f none -g make -t halt
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check::
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$(PL) -q -f $(srcdir)/test_rdf.pl -g true -t test_rdf
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$(PL) -q -f $(srcdir)/test_write.pl -g true -t test_write
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################################################################
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# Documentation
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################################################################
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doc: $(PDF) $(HTML)
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pdf: $(PDF)
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html: $(HTML)
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$(HTML): $(TEX)
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latex2html $(DOC)
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mv html/index.html $@
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$(PDF): $(TEX)
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$(RUNTEX) --pdf $(DOC)
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$(TEX): $(DOCTOTEX)
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.doc.tex:
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$(DOCTOTEX) $*.doc > $*.tex
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.pl.tex:
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$(PLTOTEX) $*.pl > $*.tex
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################################################################
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# Clean
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################################################################
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clean:
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rm -f *~ *% config.log
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distclean: clean
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rm -f $(TARGETS) config.h config.cache config.status Makefile
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rm -f $(TEX)
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$(RUNTEX) --clean $(DOC)
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@ -0,0 +1,51 @@
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################################################################
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# Build the SWI-Prolog RDF package for MS-Windows
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# NOTE: This package requires the SGML package
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#
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# Author: Jan Wielemaker
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#
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# Use:
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# nmake /f Makefile.mak
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# nmake /f Makefile.mak install
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################################################################
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PLHOME=..\..
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!include $(PLHOME)\src\rules.mk
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all:
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!IF "$(CFG)" == "rt"
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install::
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!ELSE
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install::
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copy rdf.pl "$(PLBASE)\library"
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copy rdf_parser.pl "$(PLBASE)\library"
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copy rdf_triple.pl "$(PLBASE)\library"
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copy rewrite.pl "$(PLBASE)\library"
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copy rdf_ntriples.pl "$(PLBASE)\library"
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copy rdf_write.pl "$(PLBASE)\library"
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$(MAKEINDEX)
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!ENDIF
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xpce-install::
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copy rdf_diagram.pl "$(PLBASE)\xpce\prolog\lib"
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$(MAKEINDEX)
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html-install::
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copy rdf2pl.html "$(PKGDOC)"
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uninstall::
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del "$(PLBASE)\library\rdf.pl"
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del "$(PLBASE)\library\rdf_parser.pl"
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del "$(PLBASE)\library\rdf_triple.pl"
|
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del "$(PLBASE)\library\rewrite.pl"
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del "$(PLBASE)\library\rdf_ntriples.pl"
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del "$(PLBASE)\library\rdf_write.pl"
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$(MAKEINDEX)
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clean::
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if exist *~ del *~
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distclean: clean
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|
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@ -0,0 +1,12 @@
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---+ RDF/XML parser and writer
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This directory implements the RDF/XML parser on top of the SWI-Prolog
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XML parser. The main entry point is provided by load_rdf/3 or the
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call-back version process_rdf/3.
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In addition, rdf_write.pl provides writing (serialization) of an RDD/XML
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document from a list of triples.
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* [[load_rdf/3]]
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* [[process_rdf/3]]
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* [[rdf_write_xml/2]]
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|
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@ -0,0 +1,19 @@
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/* config.h.in. Generated from configure.in by autoheader. */
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|
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/* Define to the address where bug reports for this package should be sent. */
|
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#undef PACKAGE_BUGREPORT
|
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|
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/* Define to the full name of this package. */
|
||||
#undef PACKAGE_NAME
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|
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/* Define to the full name and version of this package. */
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#undef PACKAGE_STRING
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/* Define to the one symbol short name of this package. */
|
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#undef PACKAGE_TARNAME
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|
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/* Define to the home page for this package. */
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#undef PACKAGE_URL
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/* Define to the version of this package. */
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#undef PACKAGE_VERSION
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|
|
@ -0,0 +1,9 @@
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dnl Process this file with autoconf to produce a configure script.
|
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|
||||
AC_INIT(install-sh)
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AC_PREREQ([2.50])
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||||
AC_CONFIG_HEADER(config.h)
|
||||
|
||||
m4_include([../ac_swi_noc.m4])
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||||
|
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AC_OUTPUT(Makefile)
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|
|
@ -0,0 +1,457 @@
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/* $Id$
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Part of SWI-Prolog RDF parser
|
||||
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Author: Jan Wielemaker
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||||
E-mail: jan@swi.psy.uva.nl
|
||||
WWW: http://www.swi.psy.uva.nl/projects/SWI-Prolog/
|
||||
Copying: LGPL-2. See the file COPYING or http://www.gnu.org
|
||||
|
||||
Copyright (C) 1990-2000 SWI, University of Amsterdam. All rights reserved.
|
||||
*/
|
||||
|
||||
|
||||
:- use_module(library(cgi)).
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||||
:- use_module(library(sgml)).
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:- use_module(rdf).
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:- use_module(rdf_parser).
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:- use_module(rewrite).
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:- use_module(pretty_print).
|
||||
|
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term_expansion(F, T) :- rew_term_expansion(F, T).
|
||||
goal_expansion(F, T) :- rew_goal_expansion(F, T).
|
||||
|
||||
:- dynamic new_rdf_namespace/1.
|
||||
|
||||
parse(Text, RDFTerm, Triples) :-
|
||||
parse_atom(Text, Term),
|
||||
( find_rdf(Term, RDFTerm)
|
||||
-> true
|
||||
; RDFTerm = Term
|
||||
),
|
||||
xml_to_rdf(RDFTerm, [], Triples).
|
||||
|
||||
find_rdf(Term, RDFTerm) :-
|
||||
RDFTerm = element(NS:'RDF', _, _),
|
||||
term_member(RDFTerm, Term), !,
|
||||
( rdf_name_space(NS)
|
||||
-> true
|
||||
; assert(rdf_parser:rdf_name_space(NS)),
|
||||
assert(new_rdf_namespace(NS))
|
||||
).
|
||||
|
||||
term_member(X, X).
|
||||
term_member(X, Compound) :-
|
||||
compound(Compound),
|
||||
arg(_, Compound, Arg),
|
||||
term_member(X, Arg).
|
||||
|
||||
% parse_atom(+Atom, -Term, +Options
|
||||
%
|
||||
% Parse and atom into a structured term
|
||||
|
||||
parse_atom(Atom, Term) :-
|
||||
atom_to_memory_file(Atom, MemFile),
|
||||
open_memory_file(MemFile, read, Stream),
|
||||
new_sgml_parser(Parser, []),
|
||||
set_sgml_parser(Parser, dialect(xmlns)),
|
||||
set_sgml_parser(Parser, space(sgml)),
|
||||
sgml_parse(Parser,
|
||||
[ source(Stream),
|
||||
document(Term)
|
||||
]),
|
||||
free_sgml_parser(Parser),
|
||||
close(Stream),
|
||||
free_memory_file(MemFile).
|
||||
|
||||
|
||||
/*******************************
|
||||
* HTML GENERATION *
|
||||
*******************************/
|
||||
|
||||
:- op(100, fx, #).
|
||||
:- op(110, xfx, ::).
|
||||
|
||||
emit([]) :- !.
|
||||
emit([H|T]) :- !,
|
||||
emit(H),
|
||||
emit(T).
|
||||
emit(Fmt-Args) :- !,
|
||||
format(Fmt, Args),
|
||||
retractall(nl_done(_)).
|
||||
emit(#Term) :- !,
|
||||
#Term.
|
||||
emit(#Term::Content) :- !,
|
||||
#Term::Content.
|
||||
emit(Atom) :-
|
||||
write(Atom),
|
||||
retractall(nl_done(_)).
|
||||
|
||||
#Term::Content :-
|
||||
Term =.. [Name|Attributes],
|
||||
layout(before(open, Name)),
|
||||
format('<~w', [Name]),
|
||||
attlist(Attributes),
|
||||
format('>', []),
|
||||
retractall(nl_done(_)),
|
||||
layout(after(open, Name)),
|
||||
emit(Content),
|
||||
end_tag(Name).
|
||||
#pre(Text) :- !,
|
||||
sgml_quote(Text, Quoted),
|
||||
#pre::Quoted.
|
||||
#box(Text) :- !,
|
||||
box(Text, '#e0e0e0').
|
||||
#box(Text, Colour) :- !,
|
||||
box(Text, Colour).
|
||||
#Term :-
|
||||
Term =.. [Name|Attributes],
|
||||
layout(before(open, Name)),
|
||||
format('<~w', [Name]),
|
||||
attlist(Attributes),
|
||||
format('>', []),
|
||||
retractall(nl_done(_)),
|
||||
layout(after(open, Name)),
|
||||
end_tag(Name).
|
||||
|
||||
end_tag(Name) :-
|
||||
blines(Name, _, o), !.
|
||||
end_tag(Name) :-
|
||||
layout(before(close, Name)),
|
||||
format('</~w>', [Name]),
|
||||
retractall(nl_done(_)),
|
||||
layout(after(close, Name)).
|
||||
|
||||
|
||||
layout(before(open, Name)) :-
|
||||
blines(Name, N-_, _), !,
|
||||
nls(N).
|
||||
layout(after(open, Name)) :-
|
||||
blines(Name, _-N, _), !,
|
||||
nls(N).
|
||||
layout(before(close, Name)) :-
|
||||
blines(Name, _, N-_), !,
|
||||
nls(N).
|
||||
layout(after(close, Name)) :-
|
||||
blines(Name, _, _-N), !,
|
||||
nls(N).
|
||||
layout(_) :-
|
||||
retractall(nl_done(_)).
|
||||
|
||||
:- dynamic
|
||||
nl_done/1.
|
||||
|
||||
nls(N) :-
|
||||
( nl_done(Done)
|
||||
-> true
|
||||
; Done = 0
|
||||
),
|
||||
ToDo is N - Done,
|
||||
New is max(N, Done),
|
||||
retractall(nl_done(Done)),
|
||||
assert(nl_done(New)),
|
||||
do_nl(ToDo).
|
||||
|
||||
do_nl(N) :-
|
||||
N > 0, !,
|
||||
nl,
|
||||
NN is N - 1,
|
||||
do_nl(NN).
|
||||
do_nl(_).
|
||||
|
||||
blines(tr, 1-0, 0-0).
|
||||
blines(table, 2-1, 1-1).
|
||||
blines(form, 2-1, 1-1).
|
||||
blines(h1, 2-0, 0-1).
|
||||
blines(h2, 2-0, 0-2).
|
||||
blines(h3, 2-0, 0-2).
|
||||
blines(h4, 2-0, 0-2).
|
||||
blines(p, 2-1, o). % omitted end-tag
|
||||
|
||||
attlist([]).
|
||||
attlist([Name=Value|T]) :- !,
|
||||
sgml_quote_value(Value, Quoted),
|
||||
format(' ~w=~w', [Name, Quoted]),
|
||||
attlist(T).
|
||||
attlist([Name|T]) :-
|
||||
format(' ~w', [Name]),
|
||||
attlist(T).
|
||||
|
||||
head(Title) :-
|
||||
emit([ 'Content-type: text/html\n\n',
|
||||
'<html>\n',
|
||||
'<head>\n',
|
||||
'<title>~w</title>~n'-[Title],
|
||||
'</head>\n\n',
|
||||
'<body bgcolor="white">\n'
|
||||
]).
|
||||
foot :-
|
||||
emit([ '</body>\n',
|
||||
'</html>\n'
|
||||
]).
|
||||
|
||||
|
||||
pre(Text) :-
|
||||
sgml_quote(Text, Quoted),
|
||||
#pre::Quoted.
|
||||
|
||||
box(Text, Colour) :-
|
||||
emit('<p>\n'),
|
||||
#table(width='80%', align=center, border=6, bgcolor=Colour)::
|
||||
[#tr::[#td(nowrap)::[#pre(Text)]]].
|
||||
|
||||
|
||||
/*******************************
|
||||
* QUOTING *
|
||||
*******************************/
|
||||
|
||||
sgml_quote_value(Value, Arg) :-
|
||||
atom_chars(Value, Chars),
|
||||
( name_chars(Chars)
|
||||
-> Arg = Value
|
||||
; sgml_quote_chars(Chars, Quoted),
|
||||
atom_chars(Arg, Quoted)
|
||||
).
|
||||
|
||||
name_chars([H|T]) :-
|
||||
char_type(H, alpha),
|
||||
all_alnum(T).
|
||||
|
||||
all_alnum([]).
|
||||
all_alnum([H|T]) :-
|
||||
char_type(H, csymf),
|
||||
all_alnum(T).
|
||||
|
||||
sgml_quote_chars(L, ['"'|T]) :-
|
||||
sgml_quote2(L, T, ['"']).
|
||||
|
||||
sgml_quote2([], T, T).
|
||||
sgml_quote2([H|T0], List, Rest) :-
|
||||
sgml_quote_char(H, List, T), !,
|
||||
sgml_quote2(T0, T, Rest).
|
||||
sgml_quote2([H|T0], [H|T], Rest) :-
|
||||
sgml_quote2(T0, T, Rest).
|
||||
|
||||
sgml_quote_char('<', [&, l, t, ;|T], T).
|
||||
sgml_quote_char('>', [&, g, t, ;|T], T).
|
||||
sgml_quote_char('&', [&, a, m, p, ;|T], T).
|
||||
sgml_quote_char('"', [&, q, u, o, t, ;|T], T).
|
||||
%sgml_quote_char('\'', [&, a, p, o, s, ;|T], T).
|
||||
|
||||
sgml_quote(Text, Quoted) :-
|
||||
atom_chars(Text, Chars),
|
||||
sgml_quote2(Chars, QuotedChars, []),
|
||||
atom_chars(Quoted, QuotedChars).
|
||||
|
||||
|
||||
/*******************************
|
||||
* PAGE GENERATION *
|
||||
*******************************/
|
||||
|
||||
parsed(Time, Triples) :-
|
||||
length(Triples, Len),
|
||||
#h2::'RDF statement parsed successfully',
|
||||
#p::[ 'Your RDF statement has been parsed in ~2f seconds, '-[Time],
|
||||
'creating ', #b::Len, ' triples. ',
|
||||
'Please find the created triples in the table below.'
|
||||
],
|
||||
( getenv('HTTP_REFERER', Referer)
|
||||
-> #p::[ 'If you want to try another RDF statement, please go ',
|
||||
'back to ', #a(href=Referer)::'the request form', '.'
|
||||
]
|
||||
; true
|
||||
).
|
||||
|
||||
rdf_table(Triples) :-
|
||||
maplist(triple_row, Triples, TripleRows),
|
||||
#p,
|
||||
#table(caption='RDF triples',
|
||||
align=center, border=2, cellpadding=3)::
|
||||
[ #tr::[#th::'Subject', #th::'Predicate', #th::'Object']
|
||||
| TripleRows
|
||||
].
|
||||
|
||||
triple_row(rdf(Subj, Pred, Obj), #tr::[#td::S,#td::P,#td::O]) :-
|
||||
cell(Subj, S),
|
||||
cell(Pred, P),
|
||||
cell(Obj, O).
|
||||
|
||||
cell(rdf:Local, [#em::rdf, :, #b::Local]) :- !.
|
||||
cell(literal(X), [#b::'literal(', X, #b::')']) :- !.
|
||||
cell(each(X), [#b::'each(', X, #b::')']) :- !.
|
||||
cell(pefix(X), [#b::'prefix(', X, #b::')']) :- !.
|
||||
cell(NS:Local, [NS, :, #b::Local]) :- !.
|
||||
cell(V, [T]) :-
|
||||
sformat(T, '~p', [V]).
|
||||
|
||||
/*******************************
|
||||
* ERRORS *
|
||||
*******************************/
|
||||
|
||||
show_errors :-
|
||||
getenv('ERROR_FILE', File),
|
||||
size_file(File, Size),
|
||||
Size > 0, !,
|
||||
read_file(File, Data),
|
||||
#h4::[#font(color=red)::
|
||||
'The following errors occurred while processing your request'],
|
||||
#p,
|
||||
#box(Data, '#ff8c00').
|
||||
show_errors.
|
||||
|
||||
show_new_namepace :-
|
||||
new_rdf_namespace(NS), !,
|
||||
#h4::[#font(color=red)::'Warning: unofficial RDF Namespace'],
|
||||
#p::['It appears your RDF description uses the unofficial ',
|
||||
'name space ', #b::NS, '. ',
|
||||
'This name space has been added for RDF.'
|
||||
].
|
||||
show_new_namepace.
|
||||
|
||||
|
||||
/*******************************
|
||||
* COMMENT *
|
||||
*******************************/
|
||||
|
||||
comment(TextId) :-
|
||||
#h4::'<hr>Comment',
|
||||
#p::[ 'If you do not agree with the output or have other comments, ',
|
||||
'Please write them in the text-area below and submit them'
|
||||
],
|
||||
getenv('REQUEST_URI', Script),
|
||||
#form(method=post, action=Script)::
|
||||
[ #input(type=hidden, name=id, value=TextId),
|
||||
#table(align=center)::
|
||||
[ #tr::[#td::[#textarea(name=comment, cols=64, rows=10)]],
|
||||
#tr::[#td(align=right)::['E-mail: ', #input(name=mail)]],
|
||||
#tr::[#td(align=right)::[#input(type=submit)]]
|
||||
]
|
||||
].
|
||||
|
||||
|
||||
/*******************************
|
||||
* REQUEST *
|
||||
*******************************/
|
||||
|
||||
request_location('Online-requests').
|
||||
|
||||
% Save the request and return a local identifier for it.
|
||||
|
||||
save_request(Text, Id) :-
|
||||
request_dir(Dir, Date),
|
||||
atomic_list_concat([Dir, /, Date], DateDir),
|
||||
ensure_dir(DateDir),
|
||||
between(1, 10000, N),
|
||||
atomic_list_concat([DateDir, /, N, '.rdf'], File),
|
||||
\+ exists_file(File), !,
|
||||
open(File, write, Fd),
|
||||
format(Fd, '~w~n', [Text]),
|
||||
close(Fd),
|
||||
atomic_list_concat([Date, /, N], Id).
|
||||
|
||||
request_dir(BaseDir, Date) :-
|
||||
get_time(Time),
|
||||
convert_time(Time, Y, M, D, _, _, _, _),
|
||||
request_location(BaseDir),
|
||||
atomic_list_concat([D, -, M, -, Y], Date).
|
||||
|
||||
ensure_dir(Dir) :-
|
||||
exists_directory(Dir), !.
|
||||
ensure_dir(Dir) :-
|
||||
make_directory(Dir).
|
||||
|
||||
save_comment(Id, Mail, Comment) :-
|
||||
request_location(Base),
|
||||
atomic_list_concat([Base, '/', Id], FileBase),
|
||||
absolute_file_name(FileBase, AbsFileBase),
|
||||
absolute_file_name(Base, AbsBase),
|
||||
sub_atom(AbsFileBase, 0, _, _, AbsBase), % verify in tree
|
||||
atom_concat(AbsFileBase, '.cmt', CmtFile),
|
||||
open(CmtFile, write, Fd),
|
||||
format(Fd, 'E-mail: ~w~n~n~w~n', [Mail, Comment]),
|
||||
close(Fd).
|
||||
|
||||
|
||||
/*******************************
|
||||
* ENTRY *
|
||||
*******************************/
|
||||
|
||||
main :-
|
||||
cgi_get_form(Arguments),
|
||||
( ( memberchk(attachment(Text), Arguments),
|
||||
Text \== ''
|
||||
; memberchk(rdf(Text), Arguments)
|
||||
)
|
||||
-> save_request(Text, TextId),
|
||||
( OldTime is cputime,
|
||||
parse(Text, _Prolog, Triples),
|
||||
Time is cputime - OldTime
|
||||
-> head('RDF Triples'),
|
||||
parsed(Time, Triples),
|
||||
show_errors,
|
||||
show_new_namepace,
|
||||
rdf_table(Triples),
|
||||
comment(TextId),
|
||||
foot
|
||||
; head('Failed to parse'),
|
||||
#p::[ 'I failed to parse your request' ],
|
||||
show_errors,
|
||||
comment(TextId),
|
||||
foot
|
||||
),
|
||||
halt
|
||||
; memberchk(comment(Comment), Arguments),
|
||||
memberchk(id(Id), Arguments),
|
||||
memberchk(mail(Mail), Arguments)
|
||||
-> save_comment(Id, Mail, Comment),
|
||||
head('Thanks for comment'),
|
||||
#p::'Thank you for your comments',
|
||||
foot,
|
||||
halt
|
||||
).
|
||||
main :-
|
||||
head('Failed'),
|
||||
#p::[ 'This CGI-script failed to understand your request' ],
|
||||
foot,
|
||||
halt.
|
||||
|
||||
go :-
|
||||
catch(main, E, error(E)).
|
||||
|
||||
error(E) :-
|
||||
message_to_string(E, Msg),
|
||||
head('Failed to parse'),
|
||||
show_errors,
|
||||
#p::[ 'An exception was raised while parsing your request:' ],
|
||||
#pre(Msg),
|
||||
foot,
|
||||
halt.
|
||||
|
||||
|
||||
/*******************************
|
||||
* TEST *
|
||||
*******************************/
|
||||
|
||||
test :-
|
||||
read_file('suite/t1.rdf', Text),
|
||||
catch(parse(Text, _Prolog, Triples), E, error(E)),
|
||||
head('RDF Triples'),
|
||||
rdf_table(Triples),
|
||||
foot.
|
||||
|
||||
|
||||
/*******************************
|
||||
* UTIL *
|
||||
*******************************/
|
||||
|
||||
read_file(File, Atom) :-
|
||||
open(File, read, Fd),
|
||||
get_code(Fd, C),
|
||||
read_stream(C, Fd, Chars),
|
||||
close(Fd),
|
||||
atom_codes(Atom, Chars).
|
||||
|
||||
read_stream(-1, _, []) :- !.
|
||||
read_stream(C0, Fd, [C0|T]) :-
|
||||
get_code(Fd, C),
|
||||
read_stream(C, Fd, T).
|
||||
|
|
@ -0,0 +1,167 @@
|
|||
/* $Id$
|
||||
|
||||
Part of SWI-Prolog SGML/XML parser
|
||||
|
||||
Author: Jan Wielemaker
|
||||
E-mail: jan@swi.psy.uva.nl
|
||||
WWW: http://www.swi.psy.uva.nl/projects/SWI-Prolog/
|
||||
Copying: LGPL-2. See the file COPYING or http://www.gnu.org
|
||||
|
||||
Copyright (C) 1990-2000 SWI, University of Amsterdam. All rights reserved.
|
||||
*/
|
||||
|
||||
:- module(dia_pretty_print,
|
||||
[ pretty_print/1
|
||||
]).
|
||||
|
||||
:- require([ atom_length/2
|
||||
, between/3
|
||||
, forall/2
|
||||
, is_list/1
|
||||
, member/2
|
||||
, memberchk/2
|
||||
]).
|
||||
|
||||
|
||||
pretty_print(Term) :-
|
||||
numbervars(Term, 0, _),
|
||||
pp(Term, 0),
|
||||
write('.'), nl, fail.
|
||||
pretty_print(_).
|
||||
|
||||
|
||||
pp(Term, _Indent) :-
|
||||
atomic(Term), !,
|
||||
writeq(Term).
|
||||
pp(Var, _Indent) :-
|
||||
var(Var), !,
|
||||
write(Var).
|
||||
pp(Var, _Indent) :-
|
||||
Var = '$VAR'(_), !,
|
||||
print(Var).
|
||||
pp('$aref'(Name), _Indent) :- !,
|
||||
write(Name).
|
||||
pp(Module:Term, Indent) :-
|
||||
atomic(Module), !,
|
||||
writeq(Module), write(:),
|
||||
pp(Term, Indent).
|
||||
pp([A1 = V1|ArgList], Indent) :- % [] is done by `atomic'!
|
||||
is_list(ArgList),
|
||||
forall(member(A, ArgList), A = (_ = _)),
|
||||
longest_attribute([A1 = V1|ArgList], 0, L), !,
|
||||
NewIndent is Indent + 2,
|
||||
( L > 9, Indent < 25, length(ArgList, Args), Args > 1
|
||||
-> ArgIndent is Indent + 4,
|
||||
ValGoal = (nl, indent(ArgIndent))
|
||||
; ArgIndent is Indent + 6 + L,
|
||||
ValGoal = write(' ')
|
||||
),
|
||||
write('[ '),
|
||||
pp(A1, Indent), term_length(A1, L1),
|
||||
tab(L-L1), write(' ='), ValGoal,
|
||||
pp(V1, ArgIndent),
|
||||
forall(member(A = V, ArgList),
|
||||
(write(','), nl,
|
||||
indent(NewIndent),
|
||||
pp(A, Indent), term_length(A, LA), tab(L-LA),
|
||||
write(' ='), ValGoal, pp(V, ArgIndent))),
|
||||
nl,
|
||||
indent(Indent),
|
||||
write(']').
|
||||
pp([H|T], Indent) :-
|
||||
is_list(T), !,
|
||||
write('[ '),
|
||||
NewIndent is Indent + 2,
|
||||
pp(H, NewIndent),
|
||||
forall(member(E, T),
|
||||
(write(','), nl,
|
||||
indent(NewIndent),
|
||||
pp(E, NewIndent))),
|
||||
nl,
|
||||
indent(Indent),
|
||||
write(']').
|
||||
pp(Term, Indent) :-
|
||||
functor(Term, Name, 2),
|
||||
current_op(_, Type, Name),
|
||||
memberchk(Type, [xfx, yfx]), !,
|
||||
arg(1, Term, A1),
|
||||
arg(2, Term, A2),
|
||||
pp(A1, Indent), format(' ~q ', [Name]), pp(A2, Indent).
|
||||
pp(Term, Indent) :-
|
||||
functor(Term, Name, _Arity),
|
||||
atom_length(Name, L),
|
||||
NewIndent is Indent + L + 1,
|
||||
format('~q(', Name),
|
||||
( term_argument_length(Term, AL),
|
||||
NewIndent + AL < 72
|
||||
-> Wrap = nowrap
|
||||
; Wrap = wrap
|
||||
),
|
||||
forall(generate_arg(I, Term, Arg),
|
||||
pparg(I, Arg, Wrap, NewIndent)),
|
||||
write(')').
|
||||
|
||||
generate_arg(ArgN, Term, Arg) :-
|
||||
functor(Term, _, Arity),
|
||||
between(1, Arity, ArgN),
|
||||
arg(ArgN, Term, Arg).
|
||||
|
||||
pparg(1, Term, _, Indent) :- !,
|
||||
pp(Term, Indent).
|
||||
pparg(_, Term, wrap, Indent) :- !,
|
||||
write(','), nl,
|
||||
indent(Indent),
|
||||
pp(Term, Indent).
|
||||
pparg(_, Term, _, Indent) :-
|
||||
write(', '),
|
||||
pp(Term, Indent).
|
||||
|
||||
longest_attribute([], L, L).
|
||||
longest_attribute([A = _|T], L0, L) :-
|
||||
term_length(A, AL),
|
||||
max(L0, AL, L1),
|
||||
longest_attribute(T, L1, L).
|
||||
|
||||
term_length(A, AL) :-
|
||||
atomic(A), !,
|
||||
atom_length(A, AL).
|
||||
term_length(Var, AL) :-
|
||||
var(Var), !,
|
||||
AL = 1.
|
||||
term_length('$VAR'(N), AL) :-
|
||||
varname(N, L),
|
||||
length(L, AL).
|
||||
term_length('$aref'(N), AL) :-
|
||||
atom_length(N, AL).
|
||||
|
||||
term_argument_length(Term, L) :-
|
||||
term_argument_length(Term, 1, 0, L).
|
||||
|
||||
term_argument_length(Term, A, L0, L) :-
|
||||
arg(A, Term, Arg), !,
|
||||
term_length(Arg, AL),
|
||||
L1 is AL + L0,
|
||||
NA is A + 1,
|
||||
term_argument_length(Term, NA, L1, L).
|
||||
term_argument_length(_, _, L, L).
|
||||
|
||||
|
||||
max(A, B, M) :-
|
||||
( A >= B
|
||||
-> M = A
|
||||
; M = B
|
||||
).
|
||||
|
||||
|
||||
varname(N, [C]) :-
|
||||
N < 26, !,
|
||||
C is N + 0'A.
|
||||
varname(N, [C1, C2]) :-
|
||||
C1 is N // 26 + 0'A,
|
||||
C2 is N mod 26 + 0'A.
|
||||
|
||||
indent(I) :-
|
||||
Tabs is I // 8,
|
||||
forall(between(1, Tabs, _), put(9)),
|
||||
Spaces is I mod 8,
|
||||
tab(Spaces).
|
||||
|
|
@ -0,0 +1,413 @@
|
|||
/* $Id$
|
||||
|
||||
Part of SWI-Prolog
|
||||
|
||||
Author: Jan Wielemaker
|
||||
E-mail: wielemak@science.uva.nl
|
||||
WWW: http://www.swi-prolog.org
|
||||
Copyright (C): 2002-2007, University of Amsterdam
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
As a special exception, if you link this library with other files,
|
||||
compiled with a Free Software compiler, to produce an executable, this
|
||||
library does not by itself cause the resulting executable to be covered
|
||||
by the GNU General Public License. This exception does not however
|
||||
invalidate any other reasons why the executable file might be covered by
|
||||
the GNU General Public License.
|
||||
*/
|
||||
|
||||
|
||||
:- module(rdf,
|
||||
[ load_rdf/2, % +File, -Triples
|
||||
load_rdf/3, % +File, -Triples, :Options
|
||||
xml_to_rdf/3, % +XML, -Triples, +Options
|
||||
process_rdf/3 % +File, :OnTriples, :Options
|
||||
]).
|
||||
|
||||
:- meta_predicate
|
||||
load_rdf(+, -, :),
|
||||
process_rdf(+, :, :).
|
||||
|
||||
:- use_module(library(sgml)). % Basic XML loading
|
||||
:- use_module(library(option)). % option/3
|
||||
:- use_module(library(lists)).
|
||||
:- use_module(rdf_parser). % Basic parser
|
||||
:- use_module(rdf_triple). % Generate triples
|
||||
|
||||
%% load_rdf(+File, -Triples) is det.
|
||||
%% load_rdf(+File, -Triples, :Options) is det.
|
||||
%
|
||||
% Parse an XML file holding an RDF term into a list of RDF triples.
|
||||
% see rdf_triple.pl for a definition of the output format. Options:
|
||||
%
|
||||
% * base_uri(+URI)
|
||||
% URI to use as base
|
||||
%
|
||||
% * expand_foreach(+Bool)
|
||||
% Apply each(Container, Pred, Object) on the members of
|
||||
% Container
|
||||
%
|
||||
% * namespaces(-Namespaces:list(NS=URL))
|
||||
% Return list of namespaces declared using xmlns:NS=URL in
|
||||
% the document. This can be used to update the namespace
|
||||
% list with rdf_register_ns/2.
|
||||
%
|
||||
% @see Use process_rdf/3 for processing large documents in
|
||||
% _|call-back|_ style.
|
||||
|
||||
load_rdf(File, Triples) :-
|
||||
load_rdf(File, Triples, []).
|
||||
|
||||
load_rdf(File, Triples, M:Options0) :-
|
||||
entity_options(Options0, EntOptions, Options1),
|
||||
meta_options(load_meta_option, M:Options1, Options),
|
||||
init_ns_collect(Options, NSList),
|
||||
load_structure(File,
|
||||
[ RDFElement
|
||||
],
|
||||
[ dialect(xmlns),
|
||||
space(sgml),
|
||||
call(xmlns, rdf:on_xmlns)
|
||||
| EntOptions
|
||||
]),
|
||||
rdf_start_file(Options, Cleanup),
|
||||
call_cleanup(xml_to_rdf(RDFElement, Triples0, Options),
|
||||
rdf_end_file(Cleanup)),
|
||||
exit_ns_collect(NSList),
|
||||
post_process(Options, Triples0, Triples).
|
||||
|
||||
entity_options([], [], []).
|
||||
entity_options([H|T0], Entities, Rest) :-
|
||||
( H = entity(_,_)
|
||||
-> Entities = [H|ET],
|
||||
entity_options(T0, ET, Rest)
|
||||
; Rest = [H|RT],
|
||||
entity_options(T0, Entities, RT)
|
||||
).
|
||||
|
||||
load_meta_option(convert_typed_literal).
|
||||
|
||||
%% xml_to_rdf(+XML, -Triples, +Options)
|
||||
|
||||
xml_to_rdf(XML, Triples, Options) :-
|
||||
is_list(Options), !,
|
||||
make_rdf_state(Options, State, _),
|
||||
xml_to_plrdf(XML, RDF, State),
|
||||
rdf_triples(RDF, Triples).
|
||||
xml_to_rdf(XML, BaseURI, Triples) :-
|
||||
atom(BaseURI), !,
|
||||
xml_to_rdf(XML, Triples, [base_uri(BaseURI)]).
|
||||
|
||||
|
||||
/*******************************
|
||||
* POST-PROCESSING *
|
||||
*******************************/
|
||||
|
||||
post_process([], Triples, Triples).
|
||||
post_process([expand_foreach(true)|T], Triples0, Triples) :- !,
|
||||
expand_each(Triples0, Triples1),
|
||||
post_process(T, Triples1, Triples).
|
||||
post_process([_|T], Triples0, Triples) :- !,
|
||||
post_process(T, Triples0, Triples).
|
||||
|
||||
|
||||
/*******************************
|
||||
* EXPAND *
|
||||
*******************************/
|
||||
|
||||
expand_each(Triples0, Triples) :-
|
||||
select(rdf(each(Container), Pred, Object),
|
||||
Triples0, Triples1), !,
|
||||
each_triples(Triples1, Container, Pred, Object, Triples2),
|
||||
expand_each(Triples2, Triples).
|
||||
expand_each(Triples, Triples).
|
||||
|
||||
each_triples([], _, _, _, []).
|
||||
each_triples([H0|T0], Container, P, O,
|
||||
[H0, rdf(S,P,O)|T]) :-
|
||||
H0 = rdf(Container, rdf:A, S),
|
||||
member_attribute(A), !,
|
||||
each_triples(T0, Container, P, O, T).
|
||||
each_triples([H|T0], Container, P, O, [H|T]) :-
|
||||
each_triples(T0, Container, P, O, T).
|
||||
|
||||
member_attribute(A) :-
|
||||
sub_atom(A, 0, _, _, '_'). % must check number?
|
||||
|
||||
|
||||
/*******************************
|
||||
* BIG FILES *
|
||||
*******************************/
|
||||
|
||||
%% process_rdf(+Input, :OnObject, :Options)
|
||||
%
|
||||
% Process RDF from Input. Input is either an atom or a term of the
|
||||
% format stream(Handle). For each encountered description, call
|
||||
% OnObject(+Triples) to handle the triples resulting from the
|
||||
% description. Defined Options are:
|
||||
%
|
||||
% * base_uri(+URI)
|
||||
% Determines the reference URI.
|
||||
%
|
||||
% * db(DB)
|
||||
% When loading from a stream, the source is taken from
|
||||
% this option or -if non-existent- from base_uri.
|
||||
%
|
||||
% * lang(LanguageID)
|
||||
% Set initial language (as xml:lang)
|
||||
%
|
||||
% * convert_typed_literal(:Convertor)
|
||||
% Call Convertor(+Type, +Content, -RDFObject) to create
|
||||
% a triple rdf(S, P, RDFObject) instead of rdf(S, P,
|
||||
% literal(type(Type, Content)).
|
||||
%
|
||||
% * namespaces(-Namespaces:list(NS=URL))
|
||||
% Return list of namespaces declared using xmlns:NS=URL in
|
||||
% the document. This can be used to update the namespace
|
||||
% list with rdf_register_ns/2.
|
||||
%
|
||||
% * entity(Name, Value)
|
||||
% Overrule entity values found in the file
|
||||
%
|
||||
% * embedded(Boolean)
|
||||
% If =true=, do not give warnings if rdf:RDF is embedded
|
||||
% in other XML data.
|
||||
|
||||
process_rdf(File, OnObject, M:Options0) :-
|
||||
is_list(Options0), !,
|
||||
entity_options(Options0, EntOptions, Options1),
|
||||
meta_options(load_meta_option, M:Options1, Options2),
|
||||
process_options(Options2, ProcessOptions, Options),
|
||||
option(base_uri(BaseURI), Options, ''),
|
||||
rdf_start_file(Options, Cleanup),
|
||||
strip_module(OnObject, Module, Pred),
|
||||
nb_setval(rdf_object_handler, Module:Pred),
|
||||
nb_setval(rdf_options, Options),
|
||||
nb_setval(rdf_state, -),
|
||||
init_ns_collect(Options, NSList),
|
||||
( File = stream(In)
|
||||
-> Source = BaseURI
|
||||
; is_stream(File)
|
||||
-> In = File,
|
||||
option(db(Source), Options, BaseURI)
|
||||
; open(File, read, In, [type(binary)]),
|
||||
Close = In,
|
||||
Source = File
|
||||
),
|
||||
new_sgml_parser(Parser, [dtd(DTD)]),
|
||||
def_entities(EntOptions, DTD),
|
||||
set_sgml_parser(Parser, file(Source)),
|
||||
set_sgml_parser(Parser, dialect(xmlns)),
|
||||
set_sgml_parser(Parser, space(sgml)),
|
||||
do_process_rdf(Parser, In, NSList, Close, Cleanup, ProcessOptions).
|
||||
process_rdf(File, BaseURI, OnObject) :-
|
||||
process_rdf(File, OnObject, [base_uri(BaseURI)]).
|
||||
|
||||
def_entities([], _).
|
||||
def_entities([entity(Name, Value)|T], DTD) :- !,
|
||||
def_entity(DTD, Name, Value),
|
||||
def_entities(T, DTD).
|
||||
def_entities([_|T0], DTD) :-
|
||||
def_entities(T0, DTD).
|
||||
|
||||
def_entity(DTD, Name, Value) :-
|
||||
open_dtd(DTD, [], Stream),
|
||||
xml_quote_attribute(Value, QValue),
|
||||
format(Stream, '<!ENTITY ~w "~w">~n', [Name, QValue]),
|
||||
close(Stream).
|
||||
|
||||
|
||||
do_process_rdf(Parser, In, NSList, Close, Cleanup, Options) :-
|
||||
call_cleanup(( sgml_parse(Parser,
|
||||
[ source(In),
|
||||
call(begin, rdf:on_begin),
|
||||
call(xmlns, rdf:on_xmlns)
|
||||
| Options
|
||||
]),
|
||||
exit_ns_collect(NSList)
|
||||
),
|
||||
cleanup_process(Close, Cleanup, Parser)).
|
||||
|
||||
cleanup_process(In, Cleanup, Parser) :-
|
||||
( var(In)
|
||||
-> true
|
||||
; close(In)
|
||||
),
|
||||
free_sgml_parser(Parser),
|
||||
nb_delete(rdf_options),
|
||||
nb_delete(rdf_object_handler),
|
||||
nb_delete(rdf_state),
|
||||
nb_delete(rdf_nslist),
|
||||
rdf_end_file(Cleanup).
|
||||
|
||||
on_begin(NS:'RDF', Attr, _) :-
|
||||
rdf_name_space(NS), !,
|
||||
nb_getval(rdf_options, Options),
|
||||
make_rdf_state(Options, State0, _),
|
||||
rdf_modify_state(Attr, State0, State),
|
||||
nb_setval(rdf_state, State).
|
||||
on_begin(Tag, Attr, Parser) :-
|
||||
nb_getval(rdf_state, State),
|
||||
( State == (-)
|
||||
-> nb_getval(rdf_options, RdfOptions),
|
||||
( memberchk(embedded(true), RdfOptions)
|
||||
-> true
|
||||
; print_message(warning, rdf(unexpected(Tag, Parser)))
|
||||
)
|
||||
; get_sgml_parser(Parser, line(Start)),
|
||||
get_sgml_parser(Parser, file(File)),
|
||||
sgml_parse(Parser,
|
||||
[ document(Content),
|
||||
parse(content)
|
||||
]),
|
||||
nb_getval(rdf_object_handler, OnTriples),
|
||||
element_to_plrdf(element(Tag, Attr, Content), Objects, State),
|
||||
rdf_triples(Objects, Triples),
|
||||
call(OnTriples, Triples, File:Start)
|
||||
).
|
||||
|
||||
%% on_xmlns(+NS, +URL, +Parser)
|
||||
%
|
||||
% Build up the list of encountered xmlns:NS=URL declarations. We
|
||||
% use destructive assignment here as an alternative to
|
||||
% assert/retract, ensuring thread-safety and better performance.
|
||||
|
||||
on_xmlns(NS, URL, _Parser) :-
|
||||
( nb_getval(rdf_nslist, List),
|
||||
List = list(L0)
|
||||
-> nb_linkarg(1, List, [NS=URL|L0])
|
||||
; true
|
||||
).
|
||||
|
||||
init_ns_collect(Options, NSList) :-
|
||||
( option(namespaces(NSList), Options, -),
|
||||
NSList \== (-)
|
||||
-> nb_setval(rdf_nslist, list([]))
|
||||
; nb_setval(rdf_nslist, -),
|
||||
NSList = (-)
|
||||
).
|
||||
|
||||
exit_ns_collect(NSList) :-
|
||||
( NSList == (-)
|
||||
-> true
|
||||
; nb_getval(rdf_nslist, list(NSList))
|
||||
).
|
||||
|
||||
|
||||
process_options(Options, Process, RestOptions) :-
|
||||
select_option(content_length(Len), Options, RestOptions), !,
|
||||
Process = [content_length(Len)].
|
||||
process_options(Options, [], Options).
|
||||
|
||||
|
||||
/*******************************
|
||||
* MESSAGES *
|
||||
*******************************/
|
||||
|
||||
:- multifile
|
||||
prolog:message/3.
|
||||
|
||||
% Catch messages. sgml/4 is generated by the SGML2PL binding.
|
||||
|
||||
prolog:message(rdf(unparsed(Data))) -->
|
||||
{ phrase(unparse_xml(Data), XML)
|
||||
},
|
||||
[ 'RDF: Failed to interpret "~s"'-[XML] ].
|
||||
prolog:message(rdf(shared_blank_nodes(N))) -->
|
||||
[ 'RDF: Shared ~D blank nodes'-[N] ].
|
||||
prolog:message(rdf(not_a_name(Name))) -->
|
||||
[ 'RDF: argument to rdf:ID is not an XML name: ~p'-[Name] ].
|
||||
prolog:message(rdf(redefined_id(Id))) -->
|
||||
[ 'RDF: rdf:ID ~p: multiple definitions'-[Id] ].
|
||||
prolog:message(rdf(unexpected(Tag, Parser))) -->
|
||||
{ get_sgml_parser(Parser, file(File)),
|
||||
get_sgml_parser(Parser, line(Line))
|
||||
},
|
||||
[ 'RDF: ~w:~d: Unexpected element ~w'-[File, Line, Tag] ].
|
||||
|
||||
|
||||
/*******************************
|
||||
* XML-TO-TEXT *
|
||||
*******************************/
|
||||
|
||||
unparse_xml([]) --> !,
|
||||
[].
|
||||
unparse_xml([H|T]) --> !,
|
||||
unparse_xml(H),
|
||||
unparse_xml(T).
|
||||
unparse_xml(Atom) -->
|
||||
{ atom(Atom)
|
||||
}, !,
|
||||
atom(Atom).
|
||||
unparse_xml(element(Name, Attr, Content)) -->
|
||||
"<",
|
||||
identifier(Name),
|
||||
attributes(Attr),
|
||||
( { Content == []
|
||||
}
|
||||
-> "/>"
|
||||
; ">",
|
||||
unparse_xml(Content)
|
||||
).
|
||||
|
||||
attributes([]) -->
|
||||
[].
|
||||
attributes([H|T]) -->
|
||||
attribute(H),
|
||||
attributes(T).
|
||||
|
||||
attribute(Name=Value) -->
|
||||
" ",
|
||||
identifier(Name),
|
||||
"=",
|
||||
value(Value).
|
||||
|
||||
identifier(NS:Local) --> !,
|
||||
"{", atom(NS), "}",
|
||||
atom(Local).
|
||||
identifier(Local) -->
|
||||
atom(Local).
|
||||
|
||||
atom(Atom, Text, Rest) :-
|
||||
atom_codes(Atom, Chars),
|
||||
append(Chars, Rest, Text).
|
||||
|
||||
value(Value) -->
|
||||
{ atom_codes(Value, Chars)
|
||||
},
|
||||
"\"",
|
||||
quoted(Chars),
|
||||
"\"".
|
||||
|
||||
quoted([]) -->
|
||||
[].
|
||||
quoted([H|T]) -->
|
||||
quote(H), !,
|
||||
quoted(T).
|
||||
|
||||
quote(0'<) --> "<".
|
||||
quote(0'>) --> ">".
|
||||
quote(0'") --> """.
|
||||
quote(0'&) --> "&".
|
||||
quote(X) --> [X].
|
||||
|
||||
|
||||
/*******************************
|
||||
* XREF *
|
||||
*******************************/
|
||||
|
||||
:- multifile prolog:meta_goal/2.
|
||||
prolog:meta_goal(process_rdf(_,G,_), [G+2]).
|
||||
|
|
@ -0,0 +1,475 @@
|
|||
\documentclass[11pt]{article}
|
||||
\usepackage{pl}
|
||||
\usepackage{html}
|
||||
\usepackage{times}
|
||||
|
||||
\onefile
|
||||
\htmloutput{html} % Output directory
|
||||
\htmlmainfile{index} % Main document file
|
||||
\bodycolor{white} % Page colour
|
||||
|
||||
\newcommand{\elem}[1]{{\tt\string<#1\string>}}
|
||||
|
||||
\begin{document}
|
||||
|
||||
\title{SWI-Prolog RDF parser}
|
||||
\author{Jan Wielemaker \\
|
||||
HCS, \\
|
||||
University of Amsterdam \\
|
||||
The Netherlands \\
|
||||
E-mail: \email{jan@swi-prolog.org}}
|
||||
|
||||
\maketitle
|
||||
|
||||
\begin{abstract}
|
||||
\url[RDF]{http://www.w3.org/RDF/} ({\bf R}esource {\bf D}escription {\bf
|
||||
F}ormat) is a \url[W3C]{http://www.w3.org/} standard for expressing
|
||||
meta-data about web-resources. It has two representations providing
|
||||
the same semantics. RDF documents are normally transferred as XML
|
||||
documents using the RDF-XML syntax. This format is unsuitable for
|
||||
processing. The parser defined here converts an RDF-XML document into
|
||||
the \jargon{triple} notation. The library \pllib{rdf_write} creates
|
||||
an RDF/XML document from a list of triples.
|
||||
\end{abstract}
|
||||
|
||||
\vfill
|
||||
|
||||
\tableofcontents
|
||||
|
||||
\vfill
|
||||
\vfill
|
||||
|
||||
\newpage
|
||||
|
||||
\section{Introduction}
|
||||
|
||||
RDF is a promising standard for representing meta-data about documents
|
||||
on the web as well as exchanging frame-based data (e.g. ontologies). RDF
|
||||
is often associated with `semantics on the web'. It consists of a formal
|
||||
data-model defined in terms of \jargon{triples}. In addition, a
|
||||
\jargon{graph} model is defined for visualisation and an XML application
|
||||
is defined for exchange.
|
||||
|
||||
`Semantics on the web' is also associated with the Prolog programming
|
||||
language. It is assumed that Prolog is a suitable vehicle to reason with
|
||||
the data expressed in RDF models. Most of the related web-infra
|
||||
structure (e.g. XML parsers, DOM implementations) are defined in Java,
|
||||
Perl, C or C+{+}.
|
||||
|
||||
Various routes are available to the Prolog user. Low-level XML parsing
|
||||
is due to its nature best done in C or C+{+}. These languages produce
|
||||
fast code. As XML/SGML are at the basis of most of the other web-related
|
||||
formats we will benefit most here. XML and SGML, being very stable
|
||||
specifications, make fast compiled languages even more attractive.
|
||||
|
||||
But what about RDF? RDF-XML is defined in XML, and provided with a
|
||||
Prolog term representing the XML document processing it according to the
|
||||
RDF syntax is quick and easy in Prolog. The alternative, getting yet
|
||||
another library and language attached to the system, is getting less
|
||||
attractive. In this document we explore the suitability of Prolog for
|
||||
processing XML documents in general and into RDF in particular.
|
||||
|
||||
|
||||
\section{Parsing RDF in Prolog}
|
||||
|
||||
We realised an RDF compiler in Prolog on top of the {\bf sgml2pl}
|
||||
package (providing a name-space sensitive XML parser). The
|
||||
transformation is realised in two passes.
|
||||
|
||||
The first pass rewrites the XML term into a Prolog term conveying the
|
||||
same information in a more friendly manner. This transformation is
|
||||
defined in a high-level pattern matching language defined on top of
|
||||
Prolog with properties similar to DCG (Definite Clause Grammar).
|
||||
|
||||
The source of this translation is very close to the BNF notation used by
|
||||
the \url[specification]{http://www.w3.org/TR/REC-rdf-syntax/}, so
|
||||
correctness is `obvious'. Below is a part of the definition for RDF
|
||||
containers. Note that XML elements are represented using a term of the
|
||||
format:
|
||||
|
||||
\begin{quote}
|
||||
\term{element}{Name, [AttrName = Value...], [Content ...]}
|
||||
\end{quote}
|
||||
|
||||
\begin{code}
|
||||
memberElt(LI) ::=
|
||||
\referencedItem(LI).
|
||||
memberElt(LI) ::=
|
||||
\inlineItem(LI).
|
||||
|
||||
referencedItem(LI) ::=
|
||||
element(\rdf(li),
|
||||
[ \resourceAttr(LI) ],
|
||||
[]).
|
||||
|
||||
inlineItem(literal(LI)) ::=
|
||||
element(\rdf(li),
|
||||
[ \parseLiteral ],
|
||||
LI).
|
||||
inlineItem(description(description, _, _, Properties)) ::=
|
||||
element(\rdf(li),
|
||||
[ \parseResource ],
|
||||
\propertyElts(Properties)).
|
||||
inlineItem(LI) ::=
|
||||
element(\rdf(li),
|
||||
[],
|
||||
[\rdf_object(LI)]), !. % inlined object
|
||||
inlineItem(literal(LI)) ::=
|
||||
element(\rdf(li),
|
||||
[],
|
||||
[LI]). % string value
|
||||
\end{code}
|
||||
|
||||
Expression in the rule that are prefixed by the \verb$\$ operator acts
|
||||
as invocation of another rule-set. The body-term is converted into
|
||||
a term where all rule-references are replaced by variables. The
|
||||
resulting term is matched and translation of the arguments is achieved
|
||||
by calling the appropriate rule. Below is the Prolog code for the
|
||||
{\bf referencedItem} rule:
|
||||
|
||||
\begin{code}
|
||||
referencedItem(A, element(B, [C], [])) :-
|
||||
rdf(li, B),
|
||||
resourceAttr(A, C).
|
||||
\end{code}
|
||||
|
||||
Additional code can be added using a notation close to the Prolog
|
||||
DCG notation. Here is the rule for a description, producing
|
||||
properties both using {\bf propAttrs} and {\bf propertyElts}.
|
||||
|
||||
\begin{code}
|
||||
description(description, About, BagID, Properties) ::=
|
||||
element(\rdf('Description'),
|
||||
\attrs([ \?idAboutAttr(About),
|
||||
\?bagIdAttr(BagID)
|
||||
| \propAttrs(PropAttrs)
|
||||
]),
|
||||
\propertyElts(PropElts)),
|
||||
{ !, append(PropAttrs, PropElts, Properties)
|
||||
}.
|
||||
\end{code}
|
||||
|
||||
|
||||
\section{Predicates}
|
||||
|
||||
The parser is designed to operate in various environments and therefore
|
||||
provides interfaces at various levels. First we describe the top level
|
||||
defined in \pllib{rdf}, simply parsing a RDF-XML file into a list of
|
||||
triples. Please note these are {\em not} asserted into the database
|
||||
because it is not necessarily the final format the user wishes to reason
|
||||
with and it is not clean how the user wants to deal with multiple RDF
|
||||
documents. Some options are using global URI's in one pool, in Prolog
|
||||
modules or using an additional argument.
|
||||
|
||||
\begin{description}
|
||||
\predicate{load_rdf}{2}{+File, -Triples}
|
||||
Same as \term{load_rdf}{File, Triples, []}.
|
||||
|
||||
\predicate{load_rdf}{3}{+File, -Triples, +Options}
|
||||
Read the RDF-XML file \arg{File} and return a list of \arg{Triples}.
|
||||
\arg{Options} defines additional processing options. Currently defined
|
||||
options are:
|
||||
|
||||
\begin{description}
|
||||
\termitem{base_uri}{BaseURI}
|
||||
If provided local identifiers and identifier-references are globalised
|
||||
using this URI. If omited or the atom \verb$[]$, local identifiers are
|
||||
not tagged.
|
||||
|
||||
\termitem{blank_nodes}{Mode}
|
||||
If \arg{Mode} is \const{share} (default), blank-node properties (i.e.\
|
||||
complex properties without identifier) are reused if they result in
|
||||
exactly the same triple-set. Two descriptions are shared if their
|
||||
intermediate description is the same. This means they should produce the
|
||||
same set of triples in the same order. The value \const{noshare} creates
|
||||
a new resource for each blank node.
|
||||
|
||||
\termitem{expand_foreach}{Boolean}
|
||||
If \arg{Boolean} is \const{true}, expand \const{rdf:aboutEach} into
|
||||
a set of triples. By default the parser generates
|
||||
\term{rdf}{each(Container), Predicate, Subject}.
|
||||
|
||||
\termitem{lang}{Lang}
|
||||
Define the initial language (i.e.\ pretend there is an \const{xml:lang}
|
||||
declaration in an enclosing element).
|
||||
|
||||
\termitem{ignore_lang}{Bool}
|
||||
If \const{true}, \const{xml:lang} declarations in the document are
|
||||
ignored. This is mostly for compatibility with older versions of
|
||||
this library that did not support language identifiers.
|
||||
|
||||
\termitem{convert_typed_literal}{:ConvertPred}
|
||||
If the parser finds a literal with the \const{rdf:datatype}=\arg{Type}
|
||||
attribute, call \term{ConvertPred}{+Type, +Content, -Literal}.
|
||||
\arg{Content} is the XML element contentas returned by the XML
|
||||
parser (a list). The predicate must unify \arg{Literal}
|
||||
with a Prolog representation of \arg{Content} according to
|
||||
\arg{Type} or throw an exception if the conversion cannot be made.
|
||||
|
||||
This option servers two purposes. First of all it can be used
|
||||
to ignore type declarations for backward compatibility of this
|
||||
library. Second it can be used to convert typed literals to
|
||||
a meaningful Prolog representation. E.g.\ convert '42' to the
|
||||
Prolog integer 42 if the type is \const{xsd:int} or a related
|
||||
type.
|
||||
|
||||
\termitem{namespaces}{-List}
|
||||
Unify \arg{List} with a list of \arg{NS}=\arg{URL} for each
|
||||
encountered \const{xmlns}:\arg{NS}=\arg{URL} declaration found
|
||||
in the source.
|
||||
|
||||
\termitem{entity}{+Name, +Value}
|
||||
Overrule entity declaration in file. As it is common practice
|
||||
to declare namespaces using entities in RDF/XML, this option
|
||||
allows for changing the namespace without changing the file.
|
||||
Multiple of these options are allowed.
|
||||
\end{description}
|
||||
|
||||
The \arg{Triples} list is a list of \term{rdf}{Subject, Predicate,
|
||||
Object} triples. \arg{Subject} is either a plain resource (an atom),
|
||||
or one of the terms \term{each}{URI} or \term{prefix}{URI} with the
|
||||
obvious meaning. \arg{Predicate} is either a plain atom for
|
||||
explicitely non-qualified names or a term
|
||||
\mbox{\arg{NameSpace}{\bf :}\arg{Name}}. If \arg{NameSpace} is the
|
||||
defined RDF name space it is returned as the atom \const{rdf}.
|
||||
Finally, \arg{Object} is a URI, a \arg{Predicate} or a term of the
|
||||
format \term{literal}{Value} for literal values. \arg{Value} is
|
||||
either a plain atom or a parsed XML term (list of atoms and elements).
|
||||
\end{description}
|
||||
|
||||
|
||||
\subsection{RDF Object representation} \label{sec:rdfobject}
|
||||
|
||||
The \emph{Object} (3rd) part of a triple can have several different
|
||||
types. If the object is a resource it is returned as either a plain
|
||||
atom or a term \mbox{\arg{NameSpace}{\bf :}\arg{Name}}. If it is a
|
||||
literal it is returned as \term{literal}{Value}, where \arg{Value}
|
||||
takes one of the formats defined below.
|
||||
|
||||
\begin{itemlist}
|
||||
\item [An atom]
|
||||
If the literal \arg{Value} is a plain atom is a literal value not
|
||||
subject to a datatype or \const{xml:lang} qualifier.
|
||||
|
||||
\item [\term{lang}{LanguageID, Atom}]
|
||||
If the literal is subject to an \const{xml:lang} qualifier
|
||||
\arg{LanguageID} specifies the language and \arg{Atom} the
|
||||
actual text.
|
||||
|
||||
\item [A list]
|
||||
If the literal is an XML literal as created by
|
||||
\mbox{parseType="Literal"}, the raw output of the XML parser for the
|
||||
content of the element is returned. This content is a list of
|
||||
\term{element}{Name, Attributes, Content} and atoms for CDATA parts as
|
||||
described with the SWI-Prolog \url[SGML/XML
|
||||
parser]{http://www.swi-prolog.org/packages/sgml2pl.html}
|
||||
|
||||
\item [\term{type}{Type, StringValue}]
|
||||
If the literal has an \verb$rdf:datatype=$\arg{Type} a term of this
|
||||
format is returned.
|
||||
\end{itemlist}
|
||||
|
||||
|
||||
\subsection{Name spaces}
|
||||
|
||||
XML name spaces are identified using a URI. Unfortunately various URI's
|
||||
are in common use to refer to RDF. The \file{rdf_parser.pl} module
|
||||
therefore defines the namespace as a multifile/1 predicate, that can be
|
||||
extended by the user. For example, to parse the \url[Netscape
|
||||
OpenDirectory]{http://www.mozilla.org/rdf/doc/inference.html}
|
||||
\file{structure.rdf} file, the following declarations are used:
|
||||
|
||||
\begin{code}
|
||||
:- multifile
|
||||
rdf_parser:rdf_name_space/1.
|
||||
|
||||
rdf_parser:rdf_name_space('http://www.w3.org/TR/RDF/').
|
||||
rdf_parser:rdf_name_space('http://directory.mozilla.org/rdf').
|
||||
rdf_parser:rdf_name_space('http://dmoz.org/rdf').
|
||||
\end{code}
|
||||
|
||||
The initial definition of this predicate is given below.
|
||||
|
||||
\begin{code}
|
||||
rdf_name_space('http://www.w3.org/1999/02/22-rdf-syntax-ns#').
|
||||
rdf_name_space('http://www.w3.org/TR/REC-rdf-syntax').
|
||||
\end{code}
|
||||
|
||||
|
||||
\subsection{Low-level access}
|
||||
|
||||
The above defined load_rdf/[2,3] is not always suitable. For example, it
|
||||
cannot deal with documents where the RDF statement is embedded in an XML
|
||||
document. It also cannot deal with really large documents (e.g.\ the
|
||||
Netscape OpenDirectory project, currently about 90 MBytes), without huge
|
||||
amounts of memory.
|
||||
|
||||
For really large documents, the {\bf sgml2pl} parser can be programmed
|
||||
to handle the content of a specific element (i.e. \elem{rdf:RDF})
|
||||
element-by-element. The parsing primitives defined in this section
|
||||
can be used to process these one-by-one.
|
||||
|
||||
\begin{description}
|
||||
\predicate{xml_to_rdf}{3}{+XML, +BaseURI, -Triples}
|
||||
Process an XML term produced by load_structure/3 using the
|
||||
\term{dialect}{xmlns} output option. \arg{XML} is either
|
||||
a complete \elem{rdf:RDF} element, a list of RDF-objects
|
||||
(container or description) or a single description of container.
|
||||
|
||||
\predicate{process_rdf}{3}{+Input, :OnTriples, +Options}
|
||||
|
||||
Exploits the call-back interface of {\bf sgml2pl}, calling
|
||||
\term{\arg{OnTriples}}{Triples, File:Line} with the list of triples
|
||||
resulting from a single top level RDF object for each RDF element in the
|
||||
input as well as the source-location where the description started.
|
||||
\arg{Input} is either a file name or term \term{stream}{Stream}. When
|
||||
using a stream all triples are associated to the value of the
|
||||
\const{base_uri} option. This predicate can be used to process arbitrary
|
||||
large RDF files as the file is processed object-by-object. The example
|
||||
below simply asserts all triples into the database:
|
||||
|
||||
\begin{code}
|
||||
assert_list([], _).
|
||||
assert_list([H|T], Source) :-
|
||||
assert(H),
|
||||
assert_list(T, Source).
|
||||
|
||||
?- process_rdf('structure,rdf', assert_list, []).
|
||||
\end{code}
|
||||
|
||||
\arg{Options} are described with load_rdf/3. The option
|
||||
\const{expand_foreach} is not supported as the container may be in a
|
||||
different description. Additional it provides \const{embedded}:
|
||||
|
||||
\begin{description}
|
||||
\termitem{embedded}{Boolean}
|
||||
The predicate process_rdf/3 processes arbitrary XML documents, only
|
||||
interpreting the content of \const{rdf:RDF} elements. If this option
|
||||
is \const{false} (default), it gives a warning on elements that are
|
||||
not processed. The option \term{embedded}{true} can be used to
|
||||
process RDF embedded in \jargon{xhtml} without warnings.
|
||||
\end{description}
|
||||
|
||||
\end{description}
|
||||
|
||||
|
||||
|
||||
|
||||
\section{Writing RDF graphs}
|
||||
|
||||
The library \pllib{rdf_write} provides the inverse of load_rdf/2 using
|
||||
the predicate rdf_write_xml/2. In most cases the RDF parser is used in
|
||||
combination with the Semweb package providing \pllib{semweb/rdf_db}.
|
||||
This library defines rdf_save/2 to save a named RDF graph from the
|
||||
database to a file. This library writes a list of rdf terms to a stream.
|
||||
It has been developed for the SeRQL server which computes an RDF graph
|
||||
that needs to be transmitted in an HTTP request. As we see this as a
|
||||
typical use-case scenario the library only provides writing to a stream.
|
||||
|
||||
\begin{description}
|
||||
\predicate{rdf_write_xml}{2}{+Stream, +Triples}
|
||||
Write an RDF/XML document to \arg{Stream} from the list of \arg{Triples}.
|
||||
\arg{Stream} must use one of the following Prolog stream encodings:
|
||||
\const{ascii}, \const{iso_latin_1} or \const{utf8}. Characters that
|
||||
cannot be represented in the encoding are represented as XML entities.
|
||||
Using ASCII is a good idea for documents that can be represented almost
|
||||
completely in ASCII. For more international documents using UTF-8 creates
|
||||
a more compact document that is easier to read.
|
||||
|
||||
\begin{code}
|
||||
rdf_write(File, Triples) :-
|
||||
open(File, write, Out, [encoding(utf8)]),
|
||||
call_cleanup(rdf_write_xml(Out, Triples),
|
||||
close(Out)).
|
||||
\end{code}
|
||||
\end{description}
|
||||
|
||||
|
||||
\section{Testing the RDF translator}
|
||||
|
||||
A test-suite and driver program are provided by \file{rdf_test.pl} in
|
||||
the source directory. To run these tests, load this file into Prolog in
|
||||
the distribution directory. The test files are in the directory
|
||||
\file{suite} and the proper output in \file{suite/ok}. Predicates
|
||||
provided by \file{rdf_test.pl}:
|
||||
|
||||
\begin{description}
|
||||
\predicate{suite}{1}{+N}
|
||||
Run test \arg{N} using the file \file{suite/tN.rdf} and display the
|
||||
RDF source, the intermediate Prolog representation and the resulting
|
||||
triples.
|
||||
\predicate{passed}{1}{+N}
|
||||
Process \file{suite/tN.rdf} and store the resulting triples in
|
||||
\file{suite/ok/tN.pl} for later validation by test/0.
|
||||
\predicate{test}{0}{}
|
||||
Run all tests and classify the result.
|
||||
\end{description}
|
||||
|
||||
\appendix
|
||||
|
||||
\section{Metrics}
|
||||
|
||||
It took three days to write and one to document the Prolog RDF parser.
|
||||
A significant part of the time was spent understanding the RDF
|
||||
specification.
|
||||
|
||||
The size of the source (including comments) is given in the table
|
||||
below.
|
||||
|
||||
\begin{center}
|
||||
\begin{tabular}{|rrr|l|l|}
|
||||
\hline
|
||||
\bf lines & \bf words & \bf bytes & \bf file & \bf function \\
|
||||
\hline
|
||||
109 & 255 & 2663 & rdf.pl & Driver program \\
|
||||
312 & 649 & 6416 & rdf_parser.pl & 1-st phase parser \\
|
||||
246 & 752 & 5852 & rdf_triple.pl & 2-nd phase parser \\
|
||||
126 & 339 & 2596 & rewrite.pl & rule-compiler \\
|
||||
\hline
|
||||
793 & 1995 & 17527 & total & \\
|
||||
\hline
|
||||
\end{tabular}
|
||||
\end{center}
|
||||
|
||||
|
||||
We also compared the performance using an RDF-Schema file generated by
|
||||
\url[Protege-2000]{http://www.smi.stanford.edu/projects/protege/} and
|
||||
interpreted as RDF. This file contains 162 descriptions in 50 Kbytes,
|
||||
resulting in 599 triples. Environment: Intel Pentium-II/450 with
|
||||
384 Mbytes memory running SuSE Linux 6.3.
|
||||
|
||||
The parser described here requires 0.15 seconds excluding 0.13 seconds
|
||||
Prolog startup time to process this file. The \url[Pro
|
||||
Solutions]{http://www.pro-solutions.com/rdfdemo/} parser (written in
|
||||
Perl) requires 1.5 seconds exluding 0.25 seconds startup time.
|
||||
|
||||
|
||||
\section{Installation}
|
||||
|
||||
\subsection{Unix systems}
|
||||
|
||||
Installation on Unix system uses the commonly found {\em configure},
|
||||
{\em make} and {\em make install} sequence. SWI-Prolog should be
|
||||
installed before building this package. If SWI-Prolog is not installed
|
||||
as \program{pl}, the environment variable \env{PL} must be set to the
|
||||
name of the SWI-Prolog executable. Installation is now accomplished
|
||||
using:
|
||||
|
||||
\begin{code}
|
||||
% ./configure
|
||||
% make
|
||||
% make install
|
||||
\end{code}
|
||||
|
||||
This installs the Prolog library files in \file{$PLBASE/library}, where
|
||||
\file{$PLBASE} refers to the SWI-Prolog `home-directory'.
|
||||
|
||||
\subsection{Windows}
|
||||
|
||||
Run the file \file{setup.pl} by double clicking it. This will install
|
||||
the required files into the SWI-Prolog directory and update the
|
||||
library directory.
|
||||
|
||||
\end{document}
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,509 @@
|
|||
/* Part of SWI-Prolog
|
||||
|
||||
Author: Jan Wielemaker
|
||||
E-mail: J.Wielemaker@uva.nl
|
||||
WWW: http://www.swi-prolog.org
|
||||
Copyright (C): 2010, University of Amsterdam
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
As a special exception, if you link this library with other files,
|
||||
compiled with a Free Software compiler, to produce an executable, this
|
||||
library does not by itself cause the resulting executable to be covered
|
||||
by the GNU General Public License. This exception does not however
|
||||
invalidate any other reasons why the executable file might be covered by
|
||||
the GNU General Public License.
|
||||
*/
|
||||
|
||||
:- module(rdf_diagram,
|
||||
[ rdf_diagram_from_file/1 % +File
|
||||
]).
|
||||
:- use_module(library(pce)).
|
||||
:- use_module(library(pce_tagged_connection)).
|
||||
:- use_module(library(autowin)).
|
||||
:- use_module(library(pce_report)).
|
||||
:- use_module(library(print_graphics)).
|
||||
:- use_module(library(rdf_parser)). % get access to declared namespaces
|
||||
|
||||
|
||||
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
This file defines the class rdf_diagram, a window capable of showing a
|
||||
set of triples.
|
||||
|
||||
The predicate rdf_diagram_from_file(+File) is a simple demo and useful
|
||||
tool to show RDF from simple RDF files.
|
||||
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
|
||||
|
||||
|
||||
/*******************************
|
||||
* SIMPLE ENTRY *
|
||||
*******************************/
|
||||
|
||||
% rdf_diagram_from_file(+File)
|
||||
%
|
||||
% Show the triples from File in a window.
|
||||
|
||||
rdf_diagram_from_file(File) :-
|
||||
absolute_file_name(File,
|
||||
[ access(read),
|
||||
extensions([rdf,rdfs,owl,''])
|
||||
], AbsFile),
|
||||
load_rdf(AbsFile, Triples,
|
||||
[ expand_foreach(true)
|
||||
]),
|
||||
new(D, rdf_diagram(string('RDF diagram for %s', File))),
|
||||
send(new(report_dialog), below, D),
|
||||
send(D, triples, Triples),
|
||||
send(D, open).
|
||||
|
||||
|
||||
/*******************************
|
||||
* CLASS RDF-DIAGRAM *
|
||||
*******************************/
|
||||
|
||||
:- pce_begin_class(rdf_diagram, auto_sized_picture,
|
||||
"Show set of RDF triples in a window").
|
||||
:- use_class_template(print_graphics).
|
||||
|
||||
variable(auto_layout, bool := @on, both, "Automatically layout on resize").
|
||||
variable(type_in_node, bool := @on, both, "Display type inside node").
|
||||
|
||||
initialise(D, Label:[name]) :->
|
||||
send_super(D, initialise, Label),
|
||||
send(D, scrollbars, both),
|
||||
send(D, fill_popup),
|
||||
send(D, resize_message,
|
||||
if(and(D?auto_layout == @on,
|
||||
D?focus_recogniser == @nil),
|
||||
message(D, layout))).
|
||||
|
||||
fill_popup(D) :->
|
||||
send(D, popup, new(P, popup)),
|
||||
send_list(P, append,
|
||||
[ menu_item(layout, message(D, layout)),
|
||||
gap,
|
||||
menu_item(print, message(D, print))
|
||||
]).
|
||||
|
||||
:- pce_group(triples).
|
||||
|
||||
append(D, Triple:prolog) :->
|
||||
"Append and rdf(Subject, Predicate, Object) triple"::
|
||||
( subject_name(Triple, SubjectName),
|
||||
get(D, resource, SubjectName, Subject),
|
||||
( get(D, type_in_node, @on),
|
||||
is_type(Triple)
|
||||
-> object_resource(Triple, ObjectName),
|
||||
send(Subject, type, ObjectName)
|
||||
; predicate_name(Triple, PredName),
|
||||
( object_resource(Triple, ObjectName)
|
||||
-> get(D, resource, ObjectName, Object)
|
||||
; object_literal(Triple, Literal)
|
||||
-> get(D, literal, Literal, Object)
|
||||
),
|
||||
send(Subject, connect, PredName, Object)
|
||||
)
|
||||
-> true
|
||||
; term_to_atom(Triple, Atom),
|
||||
ignore(send(D, report, error,
|
||||
'Failed to display triple: %s', Atom))
|
||||
).
|
||||
|
||||
triples(D, Triples:prolog) :->
|
||||
"Show disgram from Prolog triples"::
|
||||
send(D, clear),
|
||||
forall(member(T, Triples),
|
||||
send(D, append, T)),
|
||||
send(D, layout).
|
||||
|
||||
resource(D, Resource:name) :->
|
||||
"Add Resource to diagram"::
|
||||
get(D, resource, Resource, @on, _).
|
||||
|
||||
resource(D, Resource:name, Create:[bool], Subject:rdf_resource) :<-
|
||||
"Get reference for a subject or create one"::
|
||||
( get(D, member, Resource, Subject)
|
||||
-> true
|
||||
; Create \== @off,
|
||||
get(D, create_resource, Resource, Subject),
|
||||
send(D, display, Subject, D?visible?center)
|
||||
).
|
||||
|
||||
literal(D, Value:prolog, Gr:rdf_literal) :<-
|
||||
"Display a literal. Don't try to re-use"::
|
||||
( literal_name(Value, Name),
|
||||
get(D, member, Name, Gr)
|
||||
-> true
|
||||
; get(D, create_literal, Value, Gr),
|
||||
send(D, display, Gr, D?visible?center)
|
||||
).
|
||||
|
||||
|
||||
create_resource(D, Resource:name, Subject:rdf_resource) :<-
|
||||
"Create visualisation of Resource"::
|
||||
new(Subject, rdf_resource(Resource, D)).
|
||||
|
||||
|
||||
create_literal(_D, Value:prolog, Gr:rdf_literal) :<-
|
||||
"Create visualisation of literal"::
|
||||
new(Gr, rdf_literal(Value)).
|
||||
|
||||
|
||||
node_label(_D, Resource:name, Label:name) :<-
|
||||
"Generate label to show for a node"::
|
||||
local_name(Resource, Label).
|
||||
|
||||
|
||||
:- pce_group(layout).
|
||||
|
||||
layout(D) :->
|
||||
"Produce automatic layout"::
|
||||
new(Nodes, chain),
|
||||
send(D?graphicals, for_all,
|
||||
if(message(@arg1, instance_of, rdf_any),
|
||||
message(Nodes, append, @arg1))),
|
||||
send(Nodes?head, layout, 2, 40,
|
||||
iterations := 200,
|
||||
area := D?visible,
|
||||
network := Nodes).
|
||||
|
||||
copy_layout(D, From:rdf_diagram, Subst:prolog) :->
|
||||
"Copy the layout from another windows"::
|
||||
send(D?graphicals, for_some,
|
||||
message(D, copy_location, @arg1, From, prolog(Subst))).
|
||||
|
||||
copy_location(_D, Obj:graphical, From:rdf_diagram, Subst:prolog) :->
|
||||
"Copy location of a single RDF object"::
|
||||
( send(Obj, instance_of, rdf_any)
|
||||
-> ( get(Obj, name, Name),
|
||||
find(From, Name, Subst, FromObj)
|
||||
-> format('Copied location of ~p from ~p~n', [Obj, FromObj]),
|
||||
get(FromObj, center, Center),
|
||||
send(Obj, center, Center)
|
||||
)
|
||||
; true
|
||||
).
|
||||
|
||||
find(D, Name, _Subst, Obj) :-
|
||||
get(D, member, Name, Obj).
|
||||
find(D, Name, Subst, Obj) :-
|
||||
member(Name=AltName, Subst),
|
||||
atom_concat('_:', AltName, FullAltName),
|
||||
get(D, member, FullAltName, Obj).
|
||||
find(D, Name, Subst, _) :-
|
||||
format('Cannot find ~w in ~p, Subst =~n', [Name, D]),
|
||||
pp(Subst),
|
||||
fail.
|
||||
|
||||
|
||||
:- pce_end_class(rdf_diagram).
|
||||
|
||||
|
||||
/*******************************
|
||||
* SHAPES *
|
||||
*******************************/
|
||||
|
||||
:- pce_begin_class(rdf_connection, tagged_connection,
|
||||
"Represents a triple").
|
||||
|
||||
:- pce_global(@rdf_link, new(link(link, link,
|
||||
line(0,0,0,0,second)))).
|
||||
|
||||
initialise(C, Gr1:graphical, Gr2:graphical, Pred:name, Ctx:[object]) :->
|
||||
"Create from predicate"::
|
||||
send_super(C, initialise, Gr1, Gr2, @rdf_link),
|
||||
send(C, tag, rdf_label(Pred, italic, Ctx)).
|
||||
|
||||
ideal_length(C, Len:int) :<-
|
||||
"Layout: compute the desired length"::
|
||||
get(C, height, H),
|
||||
( H < 40
|
||||
-> get(C, tag, Tag),
|
||||
get(Tag, width, W),
|
||||
Len is W + 30
|
||||
; Len = 40
|
||||
).
|
||||
|
||||
:- pce_end_class(rdf_connection).
|
||||
|
||||
:- pce_begin_class(rdf_any(name), figure,
|
||||
"Represent an RDF resource or literal").
|
||||
|
||||
handle(w/2, 0, link, north).
|
||||
handle(w, h/2, link, east).
|
||||
handle(w/2, h, link, south).
|
||||
handle(0, h/2, link, west).
|
||||
|
||||
initialise(F, Ref:name) :->
|
||||
"Create visualisation"::
|
||||
send_super(F, initialise),
|
||||
send(F, name, Ref).
|
||||
|
||||
connect(F, Pred:name, Object:graphical) :->
|
||||
new(_C, rdf_connection(F, Object, Pred, F)).
|
||||
|
||||
:- pce_global(@rdf_any_recogniser,
|
||||
make_rdf_any_recogniser).
|
||||
:- pce_global(@rdf_any_popup,
|
||||
make_rdf_any_popup).
|
||||
|
||||
make_rdf_any_recogniser(G) :-
|
||||
new(M1, move_gesture(left)),
|
||||
new(M2, move_network_gesture(left, c)),
|
||||
new(P, popup_gesture(@receiver?popup)),
|
||||
new(G, handler_group(M1, M2, P)).
|
||||
|
||||
popup(_F, Popup:popup) :<-
|
||||
"Create popup menu"::
|
||||
Popup = @rdf_any_popup.
|
||||
|
||||
make_rdf_any_popup(Popup) :-
|
||||
new(Popup, popup),
|
||||
Gr = @arg1,
|
||||
send(Popup, append,
|
||||
menu_item(layout, message(Gr, layout))).
|
||||
|
||||
event(F, Ev:event) :->
|
||||
( \+ send(Ev, is_a, ms_right_down),
|
||||
send_super(F, event, Ev)
|
||||
-> true
|
||||
; send(@rdf_any_recogniser, event, Ev)
|
||||
).
|
||||
|
||||
node_label(F, Resource:name, Label:name) :<-
|
||||
"Return label to use for a resource"::
|
||||
get(F, device, Dev),
|
||||
( send(Dev, has_get_method, node_label)
|
||||
-> get(Dev, node_label, Resource, Label)
|
||||
; local_name(Resource, Label)
|
||||
).
|
||||
|
||||
:- pce_end_class(rdf_any).
|
||||
|
||||
|
||||
:- pce_begin_class(move_network_gesture, move_gesture,
|
||||
"Move network of connected graphicals").
|
||||
|
||||
variable(outline, box, get,
|
||||
"Box used to indicate move").
|
||||
variable(network, chain*, both,
|
||||
"Stored value of the network").
|
||||
variable(origin, point, get,
|
||||
"Start origin of network").
|
||||
|
||||
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
The gesture maintains an outline, the selection to be moved and the
|
||||
positon where the move orginiated. The outline itself is given a
|
||||
normal move_gesture to make it move on dragging. This move_gesture
|
||||
should operate on the same button and modifier.
|
||||
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
|
||||
|
||||
initialise(G, B:[button_name], M:[modifier]) :->
|
||||
send(G, send_super, initialise, B, M),
|
||||
send(G, slot, outline, new(Box, box(0,0))),
|
||||
send(G, slot, origin, point(0,0)),
|
||||
send(Box, texture, dotted),
|
||||
send(Box, recogniser, move_gesture(G?button, G?modifier)).
|
||||
|
||||
initiate(G, Ev:event) :->
|
||||
get(Ev, receiver, Gr),
|
||||
get(Gr, device, Dev),
|
||||
get(G, outline, Outline),
|
||||
get(Gr, network, Network),
|
||||
send(G, network, Network),
|
||||
new(Union, area(0,0,0,0)),
|
||||
send(Network, for_all, message(Union, union, @arg1?area)),
|
||||
send(G?origin, copy, Union?position),
|
||||
send(Outline, area, Union),
|
||||
send(Union, done),
|
||||
send(Dev, display, Outline),
|
||||
ignore(send(Ev, post, Outline)).
|
||||
|
||||
drag(G, Ev) :->
|
||||
send(Ev, post, G?outline).
|
||||
|
||||
|
||||
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
Terminate. First undisplay the outline. Next calculate by how much
|
||||
the outline has been dragged and move all objects of the selection by
|
||||
this amount.
|
||||
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
|
||||
|
||||
terminate(G, Ev:event) :->
|
||||
ignore(send(G, drag, Ev)),
|
||||
get(G, outline, Outline),
|
||||
send(Outline, device, @nil),
|
||||
get(Outline?area?position, difference, G?origin, Offset),
|
||||
get(G, network, Network),
|
||||
send(Network, for_all, message(@arg1, relative_move, Offset)),
|
||||
send(G, network, @nil).
|
||||
|
||||
:- pce_end_class(move_network_gesture).
|
||||
|
||||
|
||||
|
||||
:- pce_begin_class(rdf_label, text,
|
||||
"Label for an RDF relation").
|
||||
|
||||
variable(resource, name, get, "Represented predicate").
|
||||
|
||||
initialise(L, Pred:name, Font:font, Context:[object]) :->
|
||||
( Context == @default
|
||||
-> local_name(Pred, Label)
|
||||
; get(Context, node_label, Pred, Label)
|
||||
),
|
||||
send_super(L, initialise, Label, center, Font),
|
||||
send(L, slot, resource, Pred),
|
||||
send(L, background, @default).
|
||||
|
||||
:- pce_global(@rdf_label_recogniser,
|
||||
make_rdf_label_recogniser).
|
||||
|
||||
make_rdf_label_recogniser(G) :-
|
||||
new(G, handler_group),
|
||||
send(G, append,
|
||||
handler(area_enter, message(@receiver, identify))),
|
||||
send(G, append,
|
||||
handler(area_exit, message(@receiver, report, status, ''))),
|
||||
send(G, append, popup_gesture(new(P, popup))),
|
||||
send_list(P, append,
|
||||
[ menu_item(copy,
|
||||
message(@display, copy, @arg1?resource))
|
||||
]).
|
||||
|
||||
event(F, Ev:event) :->
|
||||
( send_super(F, event, Ev)
|
||||
-> true
|
||||
; send(@rdf_label_recogniser, event, Ev)
|
||||
).
|
||||
|
||||
identify(L) :->
|
||||
send(L, report, status, '%s', L?resource).
|
||||
|
||||
:- pce_end_class.
|
||||
|
||||
|
||||
|
||||
:- pce_begin_class(rdf_resource, rdf_any,
|
||||
"Represent an RDF resource").
|
||||
|
||||
initialise(F, Ref:name, Ctx:[object]) :->
|
||||
"Create visualisation"::
|
||||
send_super(F, initialise, Ref),
|
||||
send(F, display, ellipse(100, 50), point(-50,-25)),
|
||||
send(F, display, new(T, rdf_label(Ref, normal, Ctx))),
|
||||
send(T, center, point(0,0)).
|
||||
|
||||
type(F, Type:name) :->
|
||||
send(F, display, new(TL, rdf_label(Type, small, F))),
|
||||
send(TL, center, point(0,14)),
|
||||
get(F, member, ellipse, E),
|
||||
send(E, shadow, 2).
|
||||
|
||||
identify(F) :->
|
||||
send(F, report, status, 'Resource %s', F?name).
|
||||
|
||||
:- pce_end_class(rdf_resource).
|
||||
|
||||
|
||||
:- pce_begin_class(rdf_literal, rdf_any,
|
||||
"Represent an RDF literal value").
|
||||
|
||||
variable(value, prolog, get, "Represented literal value").
|
||||
|
||||
initialise(F, Value:prolog) :->
|
||||
"Create visualisation"::
|
||||
send(F, slot, value, Value),
|
||||
literal_label(Value, Label),
|
||||
atom_concat('__lit:', Label, Id),
|
||||
send_super(F, initialise, Id),
|
||||
send(F, display, new(B, box)),
|
||||
send(B, fill_pattern, colour(grey80)),
|
||||
send(B, pen, 0),
|
||||
send(F, display, new(T, text(Label, center))),
|
||||
send(T, center, point(0,0)),
|
||||
send(F, fit).
|
||||
|
||||
literal_label(literal(Value0), Value) :- !,
|
||||
literal_label(Value0, Value).
|
||||
literal_label(xml(Value0), Value) :- !,
|
||||
literal_label(Value0, Value).
|
||||
literal_label(Value, Value) :-
|
||||
atomic(Value), !.
|
||||
literal_label(Value, Label) :-
|
||||
term_to_atom(Value, Label).
|
||||
|
||||
literal_name(Value, Name) :-
|
||||
literal_label(Value, Label),
|
||||
atom_concat('__lit:', Label, Name).
|
||||
|
||||
fit(F) :->
|
||||
"Make box fit contents"::
|
||||
get(F, member, text, Text),
|
||||
get(Text?area, clone, Area),
|
||||
send(Area, increase, 3),
|
||||
get(F, member, box, Box),
|
||||
send(Box, area, Area).
|
||||
|
||||
:- pce_end_class(rdf_literal).
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
/*******************************
|
||||
* PRIMITIVES *
|
||||
*******************************/
|
||||
|
||||
subject_name(rdf(Name0, _, _), Name) :-
|
||||
resource_name(Name0, Name).
|
||||
predicate_name(rdf(_, Name0, _), Name) :-
|
||||
resource_name(Name0, Name).
|
||||
object_resource(rdf(_, _, Name0), Name) :-
|
||||
resource_name(Name0, Name).
|
||||
object_literal(rdf(_,_,Literal), Literal).
|
||||
|
||||
|
||||
resource_name(Name, Name) :-
|
||||
atom(Name), !.
|
||||
resource_name(rdf:Local, Name) :- !, % known namespaces
|
||||
atomic_list_concat([rdf, :, Local], Name).
|
||||
resource_name(NS:Local, Name) :- !,
|
||||
atom_concat(NS, Local, Name).
|
||||
resource_name(node(Anon), Name) :- % Not for predicates
|
||||
atom_concat('_:', Anon, Name).
|
||||
|
||||
is_type(rdf(_, rdf:type, _)) :- !. % our parser
|
||||
is_type(rdf(_, Pred, _)) :- % our parser
|
||||
atom(Pred),
|
||||
rdf_name_space(NS),
|
||||
atom_concat(NS, type, Pred), !.
|
||||
|
||||
% local_name(+Resource, -Label)
|
||||
%
|
||||
% Return easy readable local name
|
||||
|
||||
local_name(Resource, Local) :-
|
||||
sub_atom(Resource, _, _, A, #),
|
||||
sub_atom(Resource, _, A, 0, Local),
|
||||
\+ sub_atom(Local, _, _, _, #), !.
|
||||
local_name(Resource, Local) :-
|
||||
atom_concat('rdf:', Local, Resource), !.
|
||||
local_name(Resource, Local) :-
|
||||
file_base_name(Resource, Local),
|
||||
Local \== ''.
|
||||
local_name(Resource, Resource).
|
||||
|
||||
|
|
@ -0,0 +1,342 @@
|
|||
/* Part of SWI-Prolog
|
||||
|
||||
Author: Jan Wielemaker
|
||||
E-mail: J.Wielemaker@uva.nl
|
||||
WWW: http://www.swi-prolog.org
|
||||
Copyright (C): 2010, University of Amsterdam
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
As a special exception, if you link this library with other files,
|
||||
compiled with a Free Software compiler, to produce an executable, this
|
||||
library does not by itself cause the resulting executable to be covered
|
||||
by the GNU General Public License. This exception does not however
|
||||
invalidate any other reasons why the executable file might be covered by
|
||||
the GNU General Public License.
|
||||
*/
|
||||
|
||||
:- module(rdf_ntriples,
|
||||
[ load_rdf_ntriples/2, % +File, -Triples
|
||||
rdf_ntriple_part/4 % +Field, -Value, <DCG>
|
||||
]).
|
||||
|
||||
|
||||
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
This module parses n-triple files as defined by the W3C RDF working in
|
||||
http://www.w3.org/TR/rdf-testcases/#ntriples. This format is a
|
||||
simplified version of the RDF N3 notation used in the *.nt files that
|
||||
are used to describe the normative outcome of the RDF test-cases.
|
||||
|
||||
The returned list terms are of the form
|
||||
|
||||
rdf(Subject, Predicate, Object)
|
||||
|
||||
where
|
||||
|
||||
# Subject
|
||||
is an atom or node(Id) for anonymous nodes
|
||||
|
||||
# Predicate
|
||||
is an atom
|
||||
|
||||
# Object
|
||||
is an atom, node(Id), literal(Atom) or xml(Atom)
|
||||
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
|
||||
|
||||
|
||||
% load_rdf_ntriples(+Source, -Triples)
|
||||
%
|
||||
% Load a file or stream to a list of rdf(S,P,O) triples.
|
||||
|
||||
load_rdf_ntriples(File, Triples) :-
|
||||
open_nt_file(File, In, Close),
|
||||
call_cleanup(stream_to_triples(In, Triples), Close).
|
||||
|
||||
% open_nt_file(+Input, -Stream, -Close)
|
||||
%
|
||||
% Open Input, returning Stream and a goal to cleanup Stream if it
|
||||
% was opened.
|
||||
|
||||
open_nt_file(stream(Stream), Stream, true) :- !.
|
||||
open_nt_file(Stream, Stream, true) :-
|
||||
is_stream(Stream), !.
|
||||
open_nt_file(Spec, Stream, close(Stream)) :-
|
||||
absolute_file_name(Spec,
|
||||
[ access(read),
|
||||
extensions([nt,''])
|
||||
], Path),
|
||||
open(Path, read, Stream).
|
||||
|
||||
|
||||
% rdf_ntriple_part(+Type, -Value, <DCG>)
|
||||
%
|
||||
% Parse one of the fields of an ntriple. This is used for the
|
||||
% SWI-Prolog Sesame (www.openrdf.org) implementation to realise
|
||||
% /servlets/removeStatements. I do not think public use of this
|
||||
% predicate should be stimulated.
|
||||
|
||||
rdf_ntriple_part(subject, Subject) -->
|
||||
subject(Subject).
|
||||
rdf_ntriple_part(predicate, Predicate) -->
|
||||
predicate(Predicate).
|
||||
rdf_ntriple_part(object, Object) -->
|
||||
predicate(Object).
|
||||
|
||||
|
||||
% stream_to_triples(+Stream, -ListOfTriples)
|
||||
%
|
||||
% Read Stream, returning all its triples
|
||||
|
||||
stream_to_triples(In, Triples) :-
|
||||
read_line_to_codes(In, Line),
|
||||
( Line == end_of_file
|
||||
-> Triples = []
|
||||
; phrase(line(Triples, Tail), Line),
|
||||
stream_to_triples(In, Tail)
|
||||
).
|
||||
|
||||
line(Triples, Tail) -->
|
||||
wss,
|
||||
( comment
|
||||
-> {Triples = Tail}
|
||||
; triple(Triple)
|
||||
-> {Triples = [Triple|Tail]}
|
||||
).
|
||||
|
||||
comment -->
|
||||
"#", !,
|
||||
skip_rest.
|
||||
comment -->
|
||||
end_of_input.
|
||||
|
||||
triple(rdf(Subject, Predicate, Object)) -->
|
||||
subject(Subject), ws, wss,
|
||||
predicate(Predicate), ws, wss,
|
||||
object(Object), wss, ".", wss.
|
||||
|
||||
subject(Subject) -->
|
||||
uniref(Subject), !.
|
||||
subject(Subject) -->
|
||||
node_id(Subject).
|
||||
|
||||
predicate(Predicate) -->
|
||||
uniref(Predicate).
|
||||
|
||||
object(Object) -->
|
||||
uniref(Object), !.
|
||||
object(Object) -->
|
||||
node_id(Object).
|
||||
object(Object) -->
|
||||
literal(Object).
|
||||
|
||||
|
||||
uniref(URI) -->
|
||||
"<",
|
||||
escaped_uri_codes(Codes),
|
||||
">", !,
|
||||
{ atom_codes(URI, Codes)
|
||||
}.
|
||||
|
||||
node_id(node(Id)) --> % anonymous nodes
|
||||
"_:",
|
||||
name_start(C0),
|
||||
name_codes(Codes),
|
||||
{ atom_codes(Id, [C0|Codes])
|
||||
}.
|
||||
|
||||
literal(Literal) -->
|
||||
lang_string(Literal), !.
|
||||
literal(Literal) -->
|
||||
xml_string(Literal).
|
||||
|
||||
|
||||
% name_start(-Code)
|
||||
% name_codes(-ListfCodes)
|
||||
%
|
||||
% Parse identifier names
|
||||
|
||||
name_start(C) -->
|
||||
[C],
|
||||
{ code_type(C, alpha)
|
||||
}.
|
||||
|
||||
name_codes([C|T]) -->
|
||||
[C],
|
||||
{ code_type(C, alnum)
|
||||
}, !,
|
||||
name_codes(T).
|
||||
name_codes([]) -->
|
||||
[].
|
||||
|
||||
|
||||
% escaped_uri_codes(-CodeList)
|
||||
%
|
||||
% Decode string holding %xx escaped characters.
|
||||
|
||||
escaped_uri_codes([]) -->
|
||||
[].
|
||||
escaped_uri_codes([C|T]) -->
|
||||
"%", [D0,D1], !,
|
||||
{ code_type(D0, xdigit(V0)),
|
||||
code_type(D1, xdigit(V1)),
|
||||
C is V0<<4 + V1
|
||||
},
|
||||
escaped_uri_codes(T).
|
||||
escaped_uri_codes([C|T]) -->
|
||||
"\\u", [D0,D1,D2,D3], !,
|
||||
{ code_type(D0, xdigit(V0)),
|
||||
code_type(D1, xdigit(V1)),
|
||||
code_type(D2, xdigit(V2)),
|
||||
code_type(D3, xdigit(V3)),
|
||||
C is V0<<12 + V1<<8 + V2<<4 + V3
|
||||
},
|
||||
escaped_uri_codes(T).
|
||||
escaped_uri_codes([C|T]) -->
|
||||
"\\U", [D0,D1,D2,D3,D4,D5,D6,D7], !,
|
||||
{ code_type(D0, xdigit(V0)),
|
||||
code_type(D1, xdigit(V1)),
|
||||
code_type(D2, xdigit(V2)),
|
||||
code_type(D3, xdigit(V3)),
|
||||
code_type(D4, xdigit(V4)),
|
||||
code_type(D5, xdigit(V5)),
|
||||
code_type(D6, xdigit(V6)),
|
||||
code_type(D7, xdigit(V7)),
|
||||
C is V0<<28 + V1<<24 + V2<<20 + V3<<16 +
|
||||
V4<<12 + V5<<8 + V6<<4 + V7
|
||||
},
|
||||
escaped_uri_codes(T).
|
||||
escaped_uri_codes([C|T]) -->
|
||||
[C],
|
||||
escaped_uri_codes(T).
|
||||
|
||||
|
||||
% lang_string()
|
||||
%
|
||||
% Process a language string
|
||||
|
||||
lang_string(String) -->
|
||||
"\"",
|
||||
string(Codes),
|
||||
"\"", !,
|
||||
{ atom_codes(Atom, Codes)
|
||||
},
|
||||
( langsep
|
||||
-> language(Lang),
|
||||
{ String = literal(lang(Lang, Atom))
|
||||
}
|
||||
; "^^"
|
||||
-> uniref(Type),
|
||||
{ String = literal(type(Type, Atom))
|
||||
}
|
||||
; { String = literal(Atom)
|
||||
}
|
||||
).
|
||||
|
||||
langsep -->
|
||||
"-".
|
||||
langsep -->
|
||||
"@".
|
||||
|
||||
% xml_string(String)
|
||||
%
|
||||
% Handle xml"..."
|
||||
|
||||
xml_string(xml(String)) -->
|
||||
"xml\"", % really no whitespace?
|
||||
string(Codes),
|
||||
"\"",
|
||||
{ atom_codes(String, Codes)
|
||||
}.
|
||||
|
||||
string([]) -->
|
||||
[].
|
||||
string([C0|T]) -->
|
||||
string_char(C0),
|
||||
string(T).
|
||||
|
||||
string_char(0'\\) -->
|
||||
"\\\\".
|
||||
string_char(0'") -->
|
||||
"\\\"".
|
||||
string_char(10) -->
|
||||
"\\n".
|
||||
string_char(13) -->
|
||||
"\\r".
|
||||
string_char(9) -->
|
||||
"\\t".
|
||||
string_char(C) -->
|
||||
"\\u",
|
||||
'4xdigits'(C).
|
||||
string_char(C) -->
|
||||
"\\U",
|
||||
'4xdigits'(C0),
|
||||
'4xdigits'(C1),
|
||||
{ C is C0<<16 + C1
|
||||
}.
|
||||
string_char(C) -->
|
||||
[C].
|
||||
|
||||
'4xdigits'(C) -->
|
||||
[C0,C1,C2,C3],
|
||||
{ code_type(C0, xdigit(V0)),
|
||||
code_type(C1, xdigit(V1)),
|
||||
code_type(C2, xdigit(V2)),
|
||||
code_type(C3, xdigit(V3)),
|
||||
|
||||
C is V0<<12 + V1<<8 + V2<<4 + V3
|
||||
}.
|
||||
|
||||
% language(-Lang)
|
||||
%
|
||||
% Return xml:lang language identifier.
|
||||
|
||||
language(Lang) -->
|
||||
lang_code(C0),
|
||||
lang_codes(Codes),
|
||||
{ atom_codes(Lang, [C0|Codes])
|
||||
}.
|
||||
|
||||
lang_code(C) -->
|
||||
[C],
|
||||
{ C \== 0'.,
|
||||
\+ code_type(C, white)
|
||||
}.
|
||||
|
||||
lang_codes([C|T]) -->
|
||||
lang_code(C), !,
|
||||
lang_codes(T).
|
||||
lang_codes([]) -->
|
||||
[].
|
||||
|
||||
|
||||
/*******************************
|
||||
* BASICS *
|
||||
*******************************/
|
||||
|
||||
skip_rest(_,[]).
|
||||
|
||||
ws -->
|
||||
[C],
|
||||
{ code_type(C, white)
|
||||
}.
|
||||
|
||||
end_of_input([], []).
|
||||
|
||||
|
||||
wss -->
|
||||
ws, !,
|
||||
wss.
|
||||
wss -->
|
||||
[].
|
||||
|
|
@ -0,0 +1,632 @@
|
|||
/* $Id$
|
||||
|
||||
Part of SWI-Prolog
|
||||
|
||||
Author: Jan Wielemaker
|
||||
E-mail: J.Wielemaker@cs.vu.nl
|
||||
WWW: http://www.swi-prolog.org
|
||||
Copyright (C): 2002-2009, University of Amsterdam
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
As a special exception, if you link this library with other files,
|
||||
compiled with a Free Software compiler, to produce an executable, this
|
||||
library does not by itself cause the resulting executable to be covered
|
||||
by the GNU General Public License. This exception does not however
|
||||
invalidate any other reasons why the executable file might be covered by
|
||||
the GNU General Public License.
|
||||
*/
|
||||
|
||||
:- module(rdf_parser,
|
||||
[ xml_to_plrdf/3, % +XMLTerm, -RDFTerm, +State
|
||||
element_to_plrdf/3, % +ContentList, -RDFTerm, +State
|
||||
make_rdf_state/3, % +Options, -State, -RestOptions
|
||||
rdf_modify_state/3, % +XMLAttrs, +State0, -State
|
||||
rdf_name_space/1
|
||||
]).
|
||||
:- use_module(rewrite).
|
||||
:- use_module(library(sgml)). % xml_name/1
|
||||
:- use_module(library(lists)).
|
||||
:- use_module(library(uri)).
|
||||
:- use_module(library(record)).
|
||||
|
||||
:- op(500, fx, \?). % Optional (attrs)
|
||||
|
||||
term_expansion(F, T) :- rew_term_expansion(F, T).
|
||||
goal_expansion(F, T) :- rew_goal_expansion(F, T).
|
||||
|
||||
goal_expansion(attrs(Attrs, List), Goal) :-
|
||||
translate_attrs(List, Attrs, Goal).
|
||||
|
||||
translate_attrs(Var, Attrs, rewrite(Var, Attrs)) :-
|
||||
var(Var), !.
|
||||
translate_attrs([], _, true) :- !.
|
||||
translate_attrs([H], Attrs, Goal) :- !,
|
||||
( var(H)
|
||||
-> Goal = rewrite(H, Attrs)
|
||||
; H = \?Optional
|
||||
-> Goal = ( member(A, Attrs),
|
||||
OptRewrite
|
||||
-> true
|
||||
; true
|
||||
),
|
||||
expand_goal(rewrite(\Optional, A), OptRewrite)
|
||||
; Goal = ( member(A, Attrs),
|
||||
Rewrite
|
||||
-> true
|
||||
),
|
||||
expand_goal(rewrite(H, A), Rewrite)
|
||||
).
|
||||
translate_attrs([H|T], Attrs0, (G0, G1)) :- !,
|
||||
( var(H)
|
||||
-> G0 = rewrite(H, Attrs0),
|
||||
Attrs1 = Attrs0
|
||||
; H = \?Optional
|
||||
-> G0 = ( select(A, Attrs0, Attrs1),
|
||||
OptRewrite
|
||||
-> true
|
||||
; Attrs1 = Attrs0
|
||||
),
|
||||
expand_goal(rewrite(\Optional, A), OptRewrite)
|
||||
; G0 = ( select(A, Attrs0, Attrs1),
|
||||
Rewrite
|
||||
),
|
||||
expand_goal(rewrite(H, A), Rewrite)
|
||||
),
|
||||
translate_attrs(T, Attrs1, G1).
|
||||
translate_attrs(Rule, Attrs, Goal) :-
|
||||
expand_goal(rewrite(Rule, Attrs), Goal).
|
||||
|
||||
|
||||
:- multifile rdf_name_space/1.
|
||||
:- dynamic rdf_name_space/1.
|
||||
|
||||
%% rdf_name_space(?URL) is nondet.
|
||||
%
|
||||
% True if URL must be handled as rdf: Determines special handling
|
||||
% of rdf:about, rdf:resource, etc.
|
||||
|
||||
|
||||
rdf_name_space('http://www.w3.org/1999/02/22-rdf-syntax-ns#').
|
||||
rdf_name_space('http://www.w3.org/TR/REC-rdf-syntax').
|
||||
|
||||
|
||||
:- record
|
||||
rdf_state(base_uri='',
|
||||
lang='',
|
||||
ignore_lang=false,
|
||||
convert_typed_literal).
|
||||
|
||||
|
||||
%% xml_to_plrdf(+RDFElementOrObject, -RDFTerm, +State)
|
||||
%
|
||||
% Translate an XML (using namespaces) term into an Prolog term
|
||||
% representing the RDF data. This term can then be fed into
|
||||
% rdf_triples/[2,3] to create a list of RDF triples. State is an
|
||||
% instance of an rdf_state record.
|
||||
|
||||
xml_to_plrdf(Element, RDF, State) :-
|
||||
( is_list(Element)
|
||||
-> rewrite(\xml_content_objects(RDF, State), Element)
|
||||
; rewrite(\xml_objects(RDF, State), Element)
|
||||
).
|
||||
|
||||
%% element_to_plrdf(+DOM, -RDFTerm, +State)
|
||||
%
|
||||
% Rewrite a single XML element.
|
||||
|
||||
element_to_plrdf(Element, RDF, State) :-
|
||||
rewrite(\nodeElementList(RDF, State), [Element]).
|
||||
|
||||
xml_objects(Objects, Options0) ::=
|
||||
E0,
|
||||
{ modify_state(E0, Options0, E, Options), !,
|
||||
rewrite(\xml_objects(Objects, Options), E)
|
||||
}.
|
||||
xml_objects(Objects, Options) ::=
|
||||
element((\rdf('RDF'), !),
|
||||
_,
|
||||
\nodeElementList(Objects, Options)),
|
||||
!.
|
||||
xml_objects(Objects, Options) ::=
|
||||
element(_, _, \xml_content_objects(Objects, Options)).
|
||||
|
||||
xml_content_objects([], _) ::=
|
||||
[].
|
||||
xml_content_objects([H|T], Options) ::=
|
||||
[ \xml_objects(H, Options)
|
||||
| \xml_content_objects(T, Options)
|
||||
].
|
||||
|
||||
|
||||
nodeElementList([], _Options) ::=
|
||||
[], !.
|
||||
nodeElementList(L, Options) ::=
|
||||
[ (\ws, !)
|
||||
| \nodeElementList(L, Options)
|
||||
].
|
||||
nodeElementList([H|T], Options) ::=
|
||||
[ \nodeElementOrError(H, Options)
|
||||
| \nodeElementList(T, Options)
|
||||
].
|
||||
|
||||
nodeElementOrError(H, Options) ::=
|
||||
\nodeElement(H, Options), !.
|
||||
nodeElementOrError(unparsed(Data), _Options) ::=
|
||||
Data.
|
||||
|
||||
nodeElement(description(Type, About, Properties), Options) ::=
|
||||
\description(Type, About, Properties, Options).
|
||||
|
||||
|
||||
/*******************************
|
||||
* DESCRIPTION *
|
||||
*******************************/
|
||||
|
||||
description(Type, About, Properties, Options0) ::=
|
||||
E0,
|
||||
{ modify_state(E0, Options0, E, Options), !,
|
||||
rewrite(\description(Type, About, Properties, Options), E)
|
||||
}.
|
||||
description(description, About, Properties, Options) ::=
|
||||
element(\rdf('Description'),
|
||||
\attrs([ \?idAboutAttr(About, Options)
|
||||
| \propAttrs(PropAttrs, Options)
|
||||
]),
|
||||
\propertyElts(PropElts, Options)),
|
||||
{ !, append(PropAttrs, PropElts, Properties)
|
||||
}.
|
||||
description(Type, About, Properties, Options) ::=
|
||||
element(\name_uri(Type, Options),
|
||||
\attrs([ \?idAboutAttr(About, Options)
|
||||
| \propAttrs(PropAttrs, Options)
|
||||
]),
|
||||
\propertyElts(PropElts, Options)),
|
||||
{ append(PropAttrs, PropElts, Properties)
|
||||
}.
|
||||
|
||||
propAttrs([], _) ::=
|
||||
[], !.
|
||||
propAttrs([H|T], Options) ::=
|
||||
[ \propAttr(H, Options)
|
||||
| \propAttrs(T, Options)
|
||||
].
|
||||
|
||||
propAttr(rdf:type = URI, Options) ::=
|
||||
\rdf_or_unqualified(type) = \value_uri(URI, Options), !.
|
||||
propAttr(Name = Literal, Options) ::=
|
||||
Name = Value,
|
||||
{ mkliteral(Value, Literal, Options)
|
||||
}.
|
||||
|
||||
propertyElts([], _) ::=
|
||||
[], !.
|
||||
propertyElts(Elts, Options) ::=
|
||||
[ (\ws, !)
|
||||
| \propertyElts(Elts, Options)
|
||||
].
|
||||
propertyElts([H|T], Options) ::=
|
||||
[ \propertyElt(H, Options)
|
||||
| \propertyElts(T, Options)
|
||||
].
|
||||
|
||||
propertyElt(E, Options) ::=
|
||||
\propertyElt(Id, Name, Value, Options),
|
||||
{ mkprop(Name, Value, Prop),
|
||||
( var(Id)
|
||||
-> E = Prop
|
||||
; E = id(Id, Prop)
|
||||
)
|
||||
}.
|
||||
|
||||
mkprop(NS:Local, Value, rdf:Local = Value) :-
|
||||
rdf_name_space(NS), !.
|
||||
mkprop(Name, Value, Name = Value).
|
||||
|
||||
|
||||
propertyElt(Id, Name, Value, Options0) ::=
|
||||
E0,
|
||||
{ modify_state(E0, Options0, E, Options), !,
|
||||
rewrite(\propertyElt(Id, Name, Value, Options), E)
|
||||
}.
|
||||
propertyElt(Id, Name, Value, Options) ::=
|
||||
\literalPropertyElt(Id, Name, Value, Options), !.
|
||||
% 5.14 emptyPropertyElt
|
||||
propertyElt(Id, Name, Value, Options) ::=
|
||||
element(Name, A, \all_ws),
|
||||
{ !,
|
||||
rewrite(\emptyPropertyElt(Id, Value, Options), A)
|
||||
}.
|
||||
|
||||
propertyElt(_, Name, description(description, Id, Properties), Options) ::=
|
||||
element(Name,
|
||||
\attrs([ \parseResource,
|
||||
\?idAboutAttr(Id, Options)
|
||||
]),
|
||||
\propertyElts(Properties, Options)),
|
||||
!.
|
||||
propertyElt(_, Name, Literal, Options) ::=
|
||||
element(Name,
|
||||
\attrs([ \parseLiteral
|
||||
]),
|
||||
Content),
|
||||
{ !,
|
||||
literal_value(Content, Literal, Options)
|
||||
}.
|
||||
propertyElt(Id, Name, collection(Elements), Options) ::=
|
||||
element(Name,
|
||||
\attrs([ \parseCollection,
|
||||
\?idAttr(Id, Options)
|
||||
]),
|
||||
\nodeElementList(Elements, Options)).
|
||||
propertyElt(Id, Name, Literal, Options) ::=
|
||||
element(Name,
|
||||
\attrs([ \?idAttr(Id, Options)
|
||||
]),
|
||||
[ Value ]),
|
||||
{ atom(Value), !,
|
||||
mkliteral(Value, Literal, Options)
|
||||
}.
|
||||
propertyElt(Id, Name, Value, Options) ::=
|
||||
element(Name,
|
||||
\attrs([ \?idAttr(Id, Options)
|
||||
]),
|
||||
\an_rdf_object(Value, Options)), !.
|
||||
propertyElt(Id, Name, unparsed(Value), Options) ::=
|
||||
element(Name,
|
||||
\attrs([ \?idAttr(Id, Options)
|
||||
]),
|
||||
Value).
|
||||
|
||||
literalPropertyElt(Id, Name, Literal, Options) ::=
|
||||
element(Name,
|
||||
\attrs([ \typeAttr(Type, Options),
|
||||
\?idAttr(Id, Options)
|
||||
]),
|
||||
Content),
|
||||
{ typed_literal(Type, Content, Literal, Options)
|
||||
}.
|
||||
|
||||
emptyPropertyElt(Id, Literal, Options) ::=
|
||||
\attrs([ \?idAttr(Id, Options),
|
||||
\?parseLiteral
|
||||
| \noMoreAttrs
|
||||
]),
|
||||
{ !,
|
||||
mkliteral('', Literal, Options)
|
||||
}.
|
||||
emptyPropertyElt(Id,
|
||||
description(description, About, Properties),
|
||||
Options) ::=
|
||||
\attrs([ \?idAttr(Id, Options),
|
||||
\?aboutResourceEmptyElt(About, Options),
|
||||
\?parseResource
|
||||
| \propAttrs(Properties, Options)
|
||||
]), !.
|
||||
|
||||
aboutResourceEmptyElt(about(URI), Options) ::=
|
||||
\resourceAttr(URI, Options), !.
|
||||
aboutResourceEmptyElt(node(URI), _Options) ::=
|
||||
\nodeIDAttr(URI).
|
||||
|
||||
%% literal_value(+In, -Value, +Options)
|
||||
%
|
||||
% Create the literal value for rdf:parseType="Literal" attributes.
|
||||
% The content is the Prolog XML DOM tree for the literal.
|
||||
%
|
||||
% @tbd Note that the specs demand a canonical textual representation
|
||||
% of the XML data as a Unicode string. For now the user can
|
||||
% achieve this using the convert_typed_literal hook.
|
||||
|
||||
literal_value(Value, literal(type(rdf:'XMLLiteral', Value)), _).
|
||||
|
||||
%% mkliteral(+Atom, -Object, +Options)
|
||||
%
|
||||
% Translate attribute value Atom into an RDF object using the
|
||||
% lang(Lang) option from Options.
|
||||
|
||||
mkliteral(Text, literal(Val), Options) :-
|
||||
atom(Text),
|
||||
( rdf_state_lang(Options, Lang),
|
||||
Lang \== ''
|
||||
-> Val = lang(Lang, Text)
|
||||
; Val = Text
|
||||
).
|
||||
|
||||
%% typed_literal(+Type, +Content, -Literal, +Options)
|
||||
%
|
||||
% Handle a literal attribute with rdf:datatype=Type qualifier. NB:
|
||||
% possibly it is faster to use a global variable for the
|
||||
% conversion hook.
|
||||
|
||||
typed_literal(Type, Content, literal(Object), Options) :-
|
||||
rdf_state_convert_typed_literal(Options, Convert),
|
||||
nonvar(Convert), !,
|
||||
( catch(call(Convert, Type, Content, Object), E, true)
|
||||
-> ( var(E)
|
||||
-> true
|
||||
; Object = E
|
||||
)
|
||||
; Object = error(cannot_convert(Type, Content), _)
|
||||
).
|
||||
typed_literal(Type, [], literal(type(Type, '')), _Options) :- !.
|
||||
typed_literal(Type, [Text], literal(type(Type, Text)), _Options) :- !.
|
||||
typed_literal(Type, Content, literal(type(Type, Content)), _Options).
|
||||
|
||||
|
||||
idAboutAttr(id(Id), Options) ::=
|
||||
\idAttr(Id, Options), !.
|
||||
idAboutAttr(about(About), Options) ::=
|
||||
\aboutAttr(About, Options), !.
|
||||
idAboutAttr(node(About), _Options) ::=
|
||||
\nodeIDAttr(About), !.
|
||||
|
||||
%% an_rdf_object(-Object, +OptionsURI)
|
||||
%
|
||||
% Deals with an object, but there may be spaces around. I'm still
|
||||
% not sure where to deal with these. Best is to ask the XML parser
|
||||
% to get rid of them, So most likely this code will change if this
|
||||
% happens.
|
||||
|
||||
an_rdf_object(Object, Options) ::=
|
||||
[ \nodeElement(Object, Options)
|
||||
], !.
|
||||
an_rdf_object(Object, Options) ::=
|
||||
[ (\ws, !)
|
||||
| \an_rdf_object(Object, Options)
|
||||
].
|
||||
an_rdf_object(Object, Options) ::=
|
||||
[ \nodeElement(Object, Options),
|
||||
\ws
|
||||
], !.
|
||||
|
||||
ws ::=
|
||||
A,
|
||||
{ atom(A),
|
||||
atom_chars(A, Chars),
|
||||
all_blank(Chars), !
|
||||
}.
|
||||
ws ::=
|
||||
pi(_).
|
||||
|
||||
all_ws ::=
|
||||
[], !.
|
||||
all_ws ::=
|
||||
[\ws | \all_ws].
|
||||
|
||||
all_blank([]).
|
||||
all_blank([H|T]) :-
|
||||
char_type(H, space), % SWI-Prolog specific
|
||||
all_blank(T).
|
||||
|
||||
|
||||
/*******************************
|
||||
* RDF ATTRIBUTES *
|
||||
*******************************/
|
||||
|
||||
idAttr(Id, Options) ::=
|
||||
\rdf_or_unqualified('ID') = \uniqueid(Id, Options).
|
||||
|
||||
aboutAttr(About, Options) ::=
|
||||
\rdf_or_unqualified(about) = \value_uri(About, Options).
|
||||
|
||||
nodeIDAttr(About) ::=
|
||||
\rdf_or_unqualified(nodeID) = About.
|
||||
|
||||
resourceAttr(URI, Options) ::=
|
||||
\rdf_or_unqualified(resource) = \value_uri(URI, Options).
|
||||
|
||||
typeAttr(Type, Options) ::=
|
||||
\rdf_or_unqualified(datatype) = \value_uri(Type, Options).
|
||||
|
||||
name_uri(URI, Options) ::=
|
||||
NS:Local,
|
||||
{ !, atom_concat(NS, Local, A),
|
||||
rewrite(\value_uri(URI, Options), A)
|
||||
}.
|
||||
name_uri(URI, Options) ::=
|
||||
\value_uri(URI, Options).
|
||||
|
||||
value_uri(URI, Options) ::=
|
||||
A,
|
||||
{ rdf_state_base_uri(Options, Base),
|
||||
uri_normalized_iri(A, Base, URI)
|
||||
}.
|
||||
|
||||
|
||||
globalid(Id, Options) ::=
|
||||
A,
|
||||
{ make_globalid(A, Options, Id)
|
||||
}.
|
||||
|
||||
uniqueid(Id, Options) ::=
|
||||
A,
|
||||
{ unique_xml_name(A, HashID),
|
||||
make_globalid(HashID, Options, Id)
|
||||
}.
|
||||
|
||||
unique_xml_name(Name, HashID) :-
|
||||
atom_concat(#, Name, HashID),
|
||||
( xml_name(Name)
|
||||
-> true
|
||||
; print_message(warning, rdf(not_a_name(Name)))
|
||||
).
|
||||
|
||||
make_globalid(In, Options, Id) :-
|
||||
rdf_state_base_uri(Options, Base),
|
||||
uri_normalized_iri(In, Base, Id).
|
||||
|
||||
parseLiteral ::= \rdf_or_unqualified(parseType) = 'Literal'.
|
||||
parseResource ::= \rdf_or_unqualified(parseType) = 'Resource'.
|
||||
parseCollection ::= \rdf_or_unqualified(parseType) = 'Collection'.
|
||||
|
||||
|
||||
/*******************************
|
||||
* PRIMITIVES *
|
||||
*******************************/
|
||||
|
||||
rdf(Tag) ::=
|
||||
NS:Tag,
|
||||
{ rdf_name_space(NS), !
|
||||
}.
|
||||
|
||||
rdf_or_unqualified(Tag) ::=
|
||||
Tag.
|
||||
rdf_or_unqualified(Tag) ::=
|
||||
NS:Tag,
|
||||
{ rdf_name_space(NS), !
|
||||
}.
|
||||
|
||||
|
||||
/*******************************
|
||||
* BASICS *
|
||||
*******************************/
|
||||
|
||||
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
This code is translated by the goal_expansion/2 rule at the start of
|
||||
this file. We leave the original code for reference.
|
||||
|
||||
attrs(Bag) ::=
|
||||
L0,
|
||||
{ do_attrs(Bag, L0)
|
||||
}.
|
||||
|
||||
do_attrs([], _) :- !.
|
||||
do_attrs([\?H|T], L0) :- !, % optional
|
||||
( select(X, L0, L),
|
||||
rewrite(\H, X)
|
||||
-> true
|
||||
; L = L0
|
||||
),
|
||||
do_attrs(T, L).
|
||||
do_attrs([H|T], L0) :-
|
||||
select(X, L0, L),
|
||||
rewrite(H, X), !,
|
||||
do_attrs(T, L).
|
||||
do_attrs(C, L) :-
|
||||
rewrite(C, L).
|
||||
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
|
||||
|
||||
% \noMoreAttrs
|
||||
%
|
||||
% Check attribute-list is empty. Reserved xml: attributes are
|
||||
% excluded from this test.
|
||||
|
||||
noMoreAttrs ::=
|
||||
[], !.
|
||||
noMoreAttrs ::=
|
||||
[ xml:_=_
|
||||
| \noMoreAttrs
|
||||
].
|
||||
|
||||
%% modify_state(+Element0, +Options0, -Element, -Options) is semidet.
|
||||
%
|
||||
% If Element0 contains xml:base = Base, strip it from the
|
||||
% attributes list and update base_uri(_) in the Options
|
||||
%
|
||||
% It Element0 contains xml:lang = Lang, strip it from the
|
||||
% attributes list and update lang(_) in the Options
|
||||
%
|
||||
% Remove all xmlns=_, xmlns:_=_ and xml:_=_. Only succeed
|
||||
% if something changed.
|
||||
|
||||
modify_state(element(Name, Attrs0, Content), Options0,
|
||||
element(Name, Attrs, Content), Options) :-
|
||||
modify_a_state(Attrs0, Options0, Attrs, Options),
|
||||
Attrs0 \== Attrs.
|
||||
|
||||
rdf_modify_state(Attributes, State0, State) :-
|
||||
modify_a_state(Attributes, State0, _, State).
|
||||
|
||||
|
||||
modify_a_state([], Options, [], Options).
|
||||
modify_a_state([Name=Value|T0], Options0, T, Options) :-
|
||||
modify_a(Name, Value, Options0, Options1), !,
|
||||
modify_a_state(T0, Options1, T, Options).
|
||||
modify_a_state([H|T0], Options0, [H|T], Options) :-
|
||||
modify_a_state(T0, Options0, T, Options).
|
||||
|
||||
|
||||
modify_a(xml:base, Base1, Options0, Options) :- !,
|
||||
rdf_state_base_uri(Options0, Base0),
|
||||
remove_fragment(Base1, Base2),
|
||||
uri_normalized_iri(Base2, Base0, Base),
|
||||
set_base_uri_of_rdf_state(Base, Options0, Options).
|
||||
modify_a(xml:lang, Lang, Options0, Options) :- !,
|
||||
rdf_state_ignore_lang(Options0, false), !,
|
||||
set_lang_of_rdf_state(Lang, Options0, Options).
|
||||
modify_a(xmlns, _, Options, Options).
|
||||
modify_a(xmlns:_, _, Options, Options).
|
||||
modify_a(xml:_, _, Options, Options).
|
||||
|
||||
|
||||
%% remove_fragment(+URI, -WithoutFragment)
|
||||
%
|
||||
% When handling xml:base, we must delete the possible fragment.
|
||||
|
||||
remove_fragment(URI, Plain) :-
|
||||
sub_atom(URI, B, _, _, #), !,
|
||||
sub_atom(URI, 0, B, _, Plain).
|
||||
remove_fragment(URI, URI).
|
||||
|
||||
|
||||
/*******************************
|
||||
* HELP PCE-EMACS A BIT *
|
||||
*******************************/
|
||||
|
||||
:- multifile
|
||||
emacs_prolog_colours:term_colours/2,
|
||||
emacs_prolog_colours:goal_classification/2.
|
||||
|
||||
expand(c(X), _, X) :- !.
|
||||
expand(In, Pattern, Colours) :-
|
||||
compound(In), !,
|
||||
In =.. [F|Args],
|
||||
expand_list(Args, PatternArgs, ColourArgs),
|
||||
Pattern =.. [F|PatternArgs],
|
||||
Colours = functor(F) - ColourArgs.
|
||||
expand(X, X, classify).
|
||||
|
||||
expand_list([], [], []).
|
||||
expand_list([H|T], [PH|PT], [CH|CT]) :-
|
||||
expand(H, PH, CH),
|
||||
expand_list(T, PT, CT).
|
||||
|
||||
:- discontiguous
|
||||
term_expansion/2.
|
||||
|
||||
term_expansion(term_colours(C),
|
||||
emacs_prolog_colours:term_colours(Pattern, Colours)) :-
|
||||
expand(C, Pattern, Colours).
|
||||
|
||||
term_colours((c(head(+(1))) ::= c(match), {c(body)})).
|
||||
term_colours((c(head(+(1))) ::= c(match))).
|
||||
|
||||
emacs_prolog_colours:goal_classification(\_, expanded).
|
||||
|
||||
:- dynamic
|
||||
prolog:meta_goal/2.
|
||||
:- multifile
|
||||
prolog:meta_goal/2,
|
||||
prolog:called_by/2.
|
||||
|
||||
prolog:meta_goal(rewrite(A, _), [A]).
|
||||
prolog:meta_goal(\A, [A+1]).
|
||||
|
||||
prolog:called_by(attrs(Attrs, _Term), Called) :-
|
||||
findall(G+1, sub_term(\?G, Attrs), Called, Tail),
|
||||
findall(G+1, sub_term(\G, Attrs), Tail).
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,414 @@
|
|||
/* Part of SWI-Prolog
|
||||
|
||||
Author: Jan Wielemaker
|
||||
E-mail: J.Wielemaker@uva.nl
|
||||
WWW: http://www.swi-prolog.org
|
||||
Copyright (C): 2002-2010, University of Amsterdam
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
As a special exception, if you link this library with other files,
|
||||
compiled with a Free Software compiler, to produce an executable, this
|
||||
library does not by itself cause the resulting executable to be covered
|
||||
by the GNU General Public License. This exception does not however
|
||||
invalidate any other reasons why the executable file might be covered by
|
||||
the GNU General Public License.
|
||||
*/
|
||||
|
||||
:- module(rdf_triple,
|
||||
[ rdf_triples/2, % +Parsed, -Tripples
|
||||
rdf_triples/3, % +Parsed, -Tripples, +Tail
|
||||
rdf_reset_ids/0, % Reset gensym id's
|
||||
rdf_start_file/2, % +Options, -Cleanup
|
||||
rdf_end_file/1, % +Cleanup
|
||||
anon_prefix/1 % Prefix for anonynmous resources
|
||||
]).
|
||||
:- use_module(library(gensym)).
|
||||
:- use_module(rdf_parser).
|
||||
|
||||
/** <module> Create triples from intermediate representation
|
||||
|
||||
Convert the output of xml_to_rdf/3 from library(rdf) into a list of
|
||||
triples of the format described below. The intermediate representation
|
||||
should be regarded a proprietary representation.
|
||||
|
||||
rdf(Subject, Predicate, Object).
|
||||
|
||||
Where `Subject' is
|
||||
|
||||
* Atom
|
||||
The subject is a resource
|
||||
|
||||
* each(URI)
|
||||
URI is the URI of an RDF Bag
|
||||
|
||||
* prefix(Pattern)
|
||||
Pattern is the prefix of a fully qualified Subject URI
|
||||
|
||||
And `Predicate' is
|
||||
|
||||
* Atom
|
||||
The predicate is always a resource
|
||||
|
||||
And `Object' is
|
||||
|
||||
* Atom
|
||||
URI of Object resource
|
||||
|
||||
* literal(Value)
|
||||
Literal value (Either a single atom or parsed XML data)
|
||||
*/
|
||||
|
||||
%% rdf_triples(+Term, -Triples) is det.
|
||||
%% rdf_triples(+Term, -Tridpples, +Tail) is det.
|
||||
%
|
||||
% Convert an object as parsed by rdf.pl into a list of rdf/3
|
||||
% triples. The identifier of the main object created is returned
|
||||
% by rdf_triples/3.
|
||||
%
|
||||
% Input is the `content' of the RDF element in the format as
|
||||
% generated by load_structure(File, Term, [dialect(xmlns)]).
|
||||
% rdf_triples/3 can process both individual descriptions as
|
||||
% well as the entire content-list of an RDF element. The first
|
||||
% mode is suitable when using library(sgml) in `call-back' mode.
|
||||
|
||||
rdf_triples(RDF, Tripples) :-
|
||||
rdf_triples(RDF, Tripples, []).
|
||||
|
||||
rdf_triples([]) --> !,
|
||||
[].
|
||||
rdf_triples([H|T]) --> !,
|
||||
rdf_triples(H),
|
||||
rdf_triples(T).
|
||||
rdf_triples(Term) -->
|
||||
triples(Term, _).
|
||||
|
||||
%% triples(-Triples, -Id, +In, -Tail)
|
||||
%
|
||||
% DGC set processing the output of xml_to_rdf/3. Id is unified to
|
||||
% the identifier of the main description.
|
||||
|
||||
triples(description(Type, About, Props), Subject) -->
|
||||
{ var(About),
|
||||
share_blank_nodes(true)
|
||||
}, !,
|
||||
( { shared_description(description(Type, Props), Subject)
|
||||
}
|
||||
-> []
|
||||
; { make_id('__Description', Id)
|
||||
},
|
||||
triples(description(Type, about(Id), Props), Subject),
|
||||
{ assert_shared_description(description(Type, Props), Subject)
|
||||
}
|
||||
).
|
||||
triples(description(description, IdAbout, Props), Subject) --> !,
|
||||
{ description_id(IdAbout, Subject)
|
||||
},
|
||||
properties(Props, Subject).
|
||||
triples(description(TypeURI, IdAbout, Props), Subject) -->
|
||||
{ description_id(IdAbout, Subject)
|
||||
},
|
||||
properties([ rdf:type = TypeURI
|
||||
| Props
|
||||
], Subject).
|
||||
triples(unparsed(Data), Id) -->
|
||||
{ make_id('__Error', Id),
|
||||
print_message(error, rdf(unparsed(Data)))
|
||||
},
|
||||
[].
|
||||
|
||||
|
||||
/*******************************
|
||||
* DESCRIPTIONS *
|
||||
*******************************/
|
||||
|
||||
:- thread_local
|
||||
node_id/2, % nodeID --> ID
|
||||
unique_id/1. % known rdf:ID
|
||||
|
||||
rdf_reset_node_ids :-
|
||||
retractall(node_id(_,_)),
|
||||
retractall(unique_id(_)).
|
||||
|
||||
description_id(Id, Id) :-
|
||||
var(Id), !,
|
||||
make_id('__Description', Id).
|
||||
description_id(about(Id), Id).
|
||||
description_id(id(Id), Id) :-
|
||||
( unique_id(Id)
|
||||
-> print_message(error, rdf(redefined_id(Id)))
|
||||
; assert(unique_id(Id))
|
||||
).
|
||||
description_id(each(Id), each(Id)).
|
||||
description_id(prefix(Id), prefix(Id)).
|
||||
description_id(node(NodeID), Id) :-
|
||||
( node_id(NodeID, Id)
|
||||
-> true
|
||||
; make_id('__Node', Id),
|
||||
assert(node_id(NodeID, Id))
|
||||
).
|
||||
|
||||
properties(PlRDF, Subject) -->
|
||||
properties(PlRDF, 1, [], [], Subject).
|
||||
|
||||
properties([], _, Bag, Bag, _) -->
|
||||
[].
|
||||
properties([H0|T0], N, Bag0, Bag, Subject) -->
|
||||
property(H0, N, NN, Bag0, Bag1, Subject),
|
||||
properties(T0, NN, Bag1, Bag, Subject).
|
||||
|
||||
%% property(Property, N, NN, Subject)// is det.
|
||||
%
|
||||
% Generate triples for {Subject, Pred, Object}. Also generates
|
||||
% triples for Object if necessary.
|
||||
%
|
||||
% @param Property One of
|
||||
%
|
||||
% * Pred = Object
|
||||
% Used for normal statements
|
||||
% * id(Id, Pred = Object)
|
||||
% Used for reified statements
|
||||
|
||||
property(Pred0 = Object, N, NN, BagH, BagT, Subject) --> % inlined object
|
||||
triples(Object, Id), !,
|
||||
{ li_pred(Pred0, Pred, N, NN)
|
||||
},
|
||||
statement(Subject, Pred, Id, _, BagH, BagT).
|
||||
property(Pred0 = collection(Elems), N, NN, BagH, BagT, Subject) --> !,
|
||||
{ li_pred(Pred0, Pred, N, NN)
|
||||
},
|
||||
statement(Subject, Pred, Object, _Id, BagH, BagT),
|
||||
collection(Elems, Object).
|
||||
property(Pred0 = Object, N, NN, BagH, BagT, Subject) --> !,
|
||||
{ li_pred(Pred0, Pred, N, NN)
|
||||
},
|
||||
statement(Subject, Pred, Object, _Id, BagH, BagT).
|
||||
property(id(Id, Pred0 = Object), N, NN, BagH, BagT, Subject) -->
|
||||
triples(Object, ObjectId), !,
|
||||
{ li_pred(Pred0, Pred, N, NN)
|
||||
},
|
||||
statement(Subject, Pred, ObjectId, Id, BagH, BagT).
|
||||
property(id(Id, Pred0 = collection(Elems)), N, NN, BagH, BagT, Subject) --> !,
|
||||
{ li_pred(Pred0, Pred, N, NN)
|
||||
},
|
||||
statement(Subject, Pred, Object, Id, BagH, BagT),
|
||||
collection(Elems, Object).
|
||||
property(id(Id, Pred0 = Object), N, NN, BagH, BagT, Subject) -->
|
||||
{ li_pred(Pred0, Pred, N, NN)
|
||||
},
|
||||
statement(Subject, Pred, Object, Id, BagH, BagT).
|
||||
|
||||
%% statement(+Subject, +Pred, +Object, +Id, +BagH, -BagT)
|
||||
%
|
||||
% Add a statement to the model. If nonvar(Id), we reinify the
|
||||
% statement using the given Id.
|
||||
|
||||
statement(Subject, Pred, Object, Id, BagH, BagT) -->
|
||||
rdf(Subject, Pred, Object),
|
||||
{ BagH = [Id|BagT]
|
||||
-> statement_id(Id)
|
||||
; BagT = BagH
|
||||
},
|
||||
( { nonvar(Id)
|
||||
}
|
||||
-> rdf(Id, rdf:type, rdf:'Statement'),
|
||||
rdf(Id, rdf:subject, Subject),
|
||||
rdf(Id, rdf:predicate, Pred),
|
||||
rdf(Id, rdf:object, Object)
|
||||
; []
|
||||
).
|
||||
|
||||
|
||||
statement_id(Id) :-
|
||||
nonvar(Id), !.
|
||||
statement_id(Id) :-
|
||||
make_id('__Statement', Id).
|
||||
|
||||
%% li_pred(+Pred, -Pred, +Nth, -NextNth)
|
||||
%
|
||||
% Transform rdf:li predicates into _1, _2, etc.
|
||||
|
||||
li_pred(rdf:li, rdf:Pred, N, NN) :- !,
|
||||
NN is N + 1,
|
||||
atom_concat('_', N, Pred).
|
||||
li_pred(Pred, Pred, N, N).
|
||||
|
||||
%% collection(+Elems, -Id)
|
||||
%
|
||||
% Handle the elements of a collection and return the identifier
|
||||
% for the whole collection in Id.
|
||||
|
||||
collection([], Nil) -->
|
||||
{ global_ref(rdf:nil, Nil)
|
||||
}.
|
||||
collection([H|T], Id) -->
|
||||
triples(H, HId),
|
||||
{ make_id('__List', Id)
|
||||
},
|
||||
rdf(Id, rdf:type, rdf:'List'),
|
||||
rdf(Id, rdf:first, HId),
|
||||
rdf(Id, rdf:rest, TId),
|
||||
collection(T, TId).
|
||||
|
||||
|
||||
rdf(S0, P0, O0) -->
|
||||
{ global_ref(S0, S),
|
||||
global_ref(P0, P),
|
||||
global_obj(O0, O)
|
||||
},
|
||||
[ rdf(S, P, O) ].
|
||||
|
||||
|
||||
global_ref(In, Out) :-
|
||||
( nonvar(In),
|
||||
In = NS:Local
|
||||
-> ( NS == rdf,
|
||||
rdf_name_space(RDF)
|
||||
-> atom_concat(RDF, Local, Out)
|
||||
; atom_concat(NS, Local, Out)
|
||||
)
|
||||
; Out = In
|
||||
).
|
||||
|
||||
global_obj(V, V) :-
|
||||
var(V), !.
|
||||
global_obj(literal(type(Local, X)), literal(type(Global, X))) :- !,
|
||||
global_ref(Local, Global).
|
||||
global_obj(literal(X), literal(X)) :- !.
|
||||
global_obj(Local, Global) :-
|
||||
global_ref(Local, Global).
|
||||
|
||||
|
||||
/*******************************
|
||||
* SHARING *
|
||||
*******************************/
|
||||
|
||||
:- thread_local
|
||||
shared_description/3, % +Hash, +Term, -Subject
|
||||
share_blank_nodes/1, % Boolean
|
||||
shared_nodes/1. % counter
|
||||
|
||||
reset_shared_descriptions :-
|
||||
retractall(shared_description(_,_,_)),
|
||||
retractall(shared_nodes(_)).
|
||||
|
||||
shared_description(Term, Subject) :-
|
||||
term_hash(Term, Hash),
|
||||
shared_description(Hash, Term, Subject),
|
||||
( retract(shared_nodes(N))
|
||||
-> N1 is N + 1
|
||||
; N1 = 1
|
||||
),
|
||||
assert(shared_nodes(N1)).
|
||||
|
||||
|
||||
assert_shared_description(Term, Subject) :-
|
||||
term_hash(Term, Hash),
|
||||
assert(shared_description(Hash, Term, Subject)).
|
||||
|
||||
|
||||
/*******************************
|
||||
* START/END *
|
||||
*******************************/
|
||||
|
||||
%% rdf_start_file(+Options, -Cleanup) is det.
|
||||
%
|
||||
% Initialise for the translation of a file.
|
||||
|
||||
rdf_start_file(Options, Cleanup) :-
|
||||
rdf_reset_node_ids, % play safe
|
||||
reset_shared_descriptions,
|
||||
set_bnode_sharing(Options, C1),
|
||||
set_anon_prefix(Options, C2),
|
||||
add_cleanup(C1, C2, Cleanup).
|
||||
|
||||
%% rdf_end_file(:Cleanup) is det.
|
||||
%
|
||||
% Cleanup reaching the end of an RDF file.
|
||||
|
||||
rdf_end_file(Cleanup) :-
|
||||
rdf_reset_node_ids,
|
||||
( shared_nodes(N)
|
||||
-> print_message(informational, rdf(shared_blank_nodes(N)))
|
||||
; true
|
||||
),
|
||||
reset_shared_descriptions,
|
||||
Cleanup.
|
||||
|
||||
set_bnode_sharing(Options, erase(Ref)) :-
|
||||
option(blank_nodes(Share), Options, noshare),
|
||||
( Share == share
|
||||
-> assert(share_blank_nodes(true), Ref), !
|
||||
; Share == noshare
|
||||
-> fail % next clause
|
||||
; throw(error(domain_error(share, Share), _))
|
||||
).
|
||||
set_bnode_sharing(_, true).
|
||||
|
||||
set_anon_prefix(Options, erase(Ref)) :-
|
||||
option(base_uri(BaseURI), Options),
|
||||
nonvar(BaseURI), !,
|
||||
atomic_list_concat(['__', BaseURI, '#'], AnonBase),
|
||||
asserta(anon_prefix(AnonBase), Ref).
|
||||
set_anon_prefix(_, true).
|
||||
|
||||
add_cleanup(true, X, X) :- !.
|
||||
add_cleanup(X, true, X) :- !.
|
||||
add_cleanup(X, Y, (X, Y)).
|
||||
|
||||
|
||||
/*******************************
|
||||
* UTIL *
|
||||
*******************************/
|
||||
|
||||
%% anon_prefix(-Prefix) is semidet.
|
||||
%
|
||||
% If defined, it is the prefix used to generate a blank node.
|
||||
|
||||
:- thread_local
|
||||
anon_prefix/1.
|
||||
|
||||
make_id(For, ID) :-
|
||||
anon_prefix(Prefix), !,
|
||||
atom_concat(Prefix, For, Base),
|
||||
gensym(Base, ID).
|
||||
make_id(For, ID) :-
|
||||
gensym(For, ID).
|
||||
|
||||
anon_base('__Description').
|
||||
anon_base('__Statement').
|
||||
anon_base('__List').
|
||||
anon_base('__Node').
|
||||
|
||||
%% rdf_reset_ids is det.
|
||||
%
|
||||
% Utility predicate to reset the gensym counters for the various
|
||||
% generated identifiers. This simplifies debugging and matching
|
||||
% output with the stored desired output (see rdf_test.pl).
|
||||
|
||||
rdf_reset_ids :-
|
||||
anon_prefix(Prefix), !,
|
||||
( anon_base(Base),
|
||||
atom_concat(Prefix, Base, X),
|
||||
reset_gensym(X),
|
||||
fail
|
||||
; true
|
||||
).
|
||||
rdf_reset_ids :-
|
||||
( anon_base(Base),
|
||||
reset_gensym(Base),
|
||||
fail
|
||||
; true
|
||||
).
|
||||
|
|
@ -0,0 +1,636 @@
|
|||
/* $Id$
|
||||
|
||||
Part of SWI-Prolog
|
||||
|
||||
Author: Jan Wielemaker
|
||||
E-mail: J.Wielemak@uva.nl
|
||||
WWW: http://www.swi-prolog.org
|
||||
Copyright (C): 2004-2009, University of Amsterdam
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
As a special exception, if you link this library with other files,
|
||||
compiled with a Free Software compiler, to produce an executable, this
|
||||
library does not by itself cause the resulting executable to be covered
|
||||
by the GNU General Public License. This exception does not however
|
||||
invalidate any other reasons why the executable file might be covered by
|
||||
the GNU General Public License.
|
||||
*/
|
||||
|
||||
:- module(rdf_write,
|
||||
[ rdf_write_xml/2 % +Stream, +Triples
|
||||
]).
|
||||
:- use_module(library('semweb/rdf_db')).
|
||||
:- use_module(library(lists)).
|
||||
:- use_module(library(sgml)).
|
||||
:- use_module(library(sgml_write)).
|
||||
:- use_module(library(assoc)).
|
||||
:- use_module(library(pairs)).
|
||||
:- use_module(library(debug)).
|
||||
|
||||
|
||||
/** <module> Write RDF/XML from a list of triples
|
||||
|
||||
This module writes an RDF/XML document from a list of triples of the
|
||||
format rdf(Subject, Predicate, Object). It is primarily intended for
|
||||
communicating computed RDF model fragments to external programs using
|
||||
RDF/XML.
|
||||
|
||||
When used from the HTTP library, use the following code:
|
||||
|
||||
==
|
||||
reply_graph(RDF) :-
|
||||
format('Content-type: application/rdf+xml; charset=UTF-8~n~n'),
|
||||
rdf_write_xml(current_output, RDF).
|
||||
==
|
||||
|
||||
@author Jan Wielemaker
|
||||
@see library(semweb/rdf_db) offers saving a named graph directly from
|
||||
the RDF database.
|
||||
*/
|
||||
|
||||
|
||||
/*******************************
|
||||
* WRITE RDFXML *
|
||||
*******************************/
|
||||
|
||||
%% rdf_write_xml(+Out:stream, +Triples:list(rdf(S,P,O))) is det.
|
||||
%
|
||||
% Write an RDF/XML serialization of Triples to Out.
|
||||
|
||||
rdf_write_xml(Out, Triples) :-
|
||||
sort(Triples, Unique),
|
||||
rdf_write_header(Out, Unique),
|
||||
node_id_map(Unique, AnonIDs),
|
||||
rdf_write_triples(Unique, AnonIDs, Out),
|
||||
rdf_write_footer(Out).
|
||||
|
||||
|
||||
/*******************************
|
||||
* HEADER/FOOTER *
|
||||
*******************************/
|
||||
|
||||
%% rdf_write_header(+Out, +Triples)
|
||||
%
|
||||
% Save XML document header, doctype and open the RDF environment.
|
||||
% This predicate also sets up the namespace notation.
|
||||
|
||||
rdf_write_header(Out, Triples) :-
|
||||
xml_encoding(Out, Enc, Encoding),
|
||||
format(Out, '<?xml version=\'1.0\' encoding=\'~w\'?>~n', [Encoding]),
|
||||
format(Out, '<!DOCTYPE rdf:RDF [', []),
|
||||
used_namespaces(Triples, NSList),
|
||||
( member(Id, NSList),
|
||||
ns(Id, NS),
|
||||
rdf_quote_uri(NS, QNS),
|
||||
xml_quote_attribute(QNS, NSText0, Enc),
|
||||
xml_escape_parameter_entity(NSText0, NSText),
|
||||
format(Out, '~N <!ENTITY ~w \'~w\'>', [Id, NSText]),
|
||||
fail
|
||||
; true
|
||||
),
|
||||
format(Out, '~N]>~n~n', []),
|
||||
format(Out, '<rdf:RDF', []),
|
||||
( member(Id, NSList),
|
||||
format(Out, '~N xmlns:~w="&~w;"~n', [Id, Id]),
|
||||
fail
|
||||
; true
|
||||
),
|
||||
format(Out, '>~n', []).
|
||||
|
||||
|
||||
xml_encoding(Out, Enc, Encoding) :-
|
||||
stream_property(Out, encoding(Enc)),
|
||||
( xml_encoding_name(Enc, Encoding)
|
||||
-> true
|
||||
; throw(error(domain_error(rdf_encoding, Enc), _))
|
||||
).
|
||||
|
||||
xml_encoding_name(ascii, 'US-ASCII').
|
||||
xml_encoding_name(iso_latin_1, 'ISO-8859-1').
|
||||
xml_encoding_name(utf8, 'UTF-8').
|
||||
|
||||
%% xml_escape_parameter_entity(+In, -Out) is det.
|
||||
%
|
||||
% Escape % as % for entity declarations.
|
||||
|
||||
xml_escape_parameter_entity(In, Out) :-
|
||||
sub_atom(In, _, _, _, '%'), !,
|
||||
atom_codes(In, Codes),
|
||||
phrase(escape_parent(Codes), OutCodes),
|
||||
atom_codes(Out, OutCodes).
|
||||
xml_escape_parameter_entity(In, In).
|
||||
|
||||
escape_parent([]) --> [].
|
||||
escape_parent([H|T]) -->
|
||||
( { H == 37 }
|
||||
-> "%"
|
||||
; [H]
|
||||
),
|
||||
escape_parent(T).
|
||||
|
||||
%% used_namespaces(+Triples:list(rdf(S,P,O)), -List:atom) is det.
|
||||
%
|
||||
% Return the list of namespace abbreviations used in a set of
|
||||
% triples.
|
||||
|
||||
used_namespaces(Triples, NSList) :-
|
||||
decl_used_predicate_ns(Triples),
|
||||
resources(Triples, Resources),
|
||||
empty_assoc(A0),
|
||||
put_assoc(rdf, A0, *, A1), % needed for rdf:RDF
|
||||
res_used_namespaces(Resources, _NoNS, A1, A),
|
||||
assoc_to_keys(A, NSList).
|
||||
|
||||
|
||||
res_used_namespaces([], [], A, A).
|
||||
res_used_namespaces([Resource|T], NoNS, A0, A) :-
|
||||
ns(NS, Full),
|
||||
Full \== '',
|
||||
atom_concat(Full, _Local, Resource), !,
|
||||
put_assoc(NS, A0, *, A1),
|
||||
res_used_namespaces(T, NoNS, A1, A).
|
||||
res_used_namespaces([R|T0], [R|T], A0, A) :-
|
||||
res_used_namespaces(T0, T, A0, A).
|
||||
|
||||
%% resources(+Triples:list(rdf(S,P,O)), -Resources:list(atom)) is det.
|
||||
%
|
||||
% Resources is the set of resources referenced in Triples.
|
||||
|
||||
resources(Triples, Resources) :-
|
||||
phrase(resources(Triples), Raw),
|
||||
sort(Raw, Resources).
|
||||
|
||||
resources([]) -->
|
||||
[].
|
||||
resources([rdf(S,P,O)|T]) -->
|
||||
[S,P],
|
||||
object_resources(O),
|
||||
resources(T).
|
||||
|
||||
object_resources(Atom) -->
|
||||
{ atom(Atom) }, !,
|
||||
[ Atom ].
|
||||
object_resources(literal(type(Type, _))) --> !,
|
||||
[ Type ].
|
||||
object_resources(_) -->
|
||||
[].
|
||||
|
||||
%% decl_used_predicate_ns(+Triples:list(rdf(S,P,O)))
|
||||
%
|
||||
% For every URL used as a predicate we *MUST* define a namespace
|
||||
% as we cannot use names holding /, :, etc. as XML identifiers.
|
||||
|
||||
:- thread_local
|
||||
predicate_ns/2.
|
||||
|
||||
decl_used_predicate_ns(Triples) :-
|
||||
retractall(predicate_ns(_,_)),
|
||||
( member(rdf(_,P,_), Triples),
|
||||
decl_predicate_ns(P),
|
||||
fail
|
||||
; true
|
||||
).
|
||||
|
||||
decl_predicate_ns(Pred) :-
|
||||
predicate_ns(Pred, _), !.
|
||||
decl_predicate_ns(Pred) :-
|
||||
rdf_global_id(NS:_Local, Pred),
|
||||
assert(predicate_ns(Pred, NS)), !.
|
||||
decl_predicate_ns(Pred) :-
|
||||
is_bag_li_predicate(Pred), !.
|
||||
decl_predicate_ns(Pred) :-
|
||||
atom_codes(Pred, Codes),
|
||||
append(NSCodes, LocalCodes, Codes),
|
||||
xml_codes(LocalCodes), !,
|
||||
( NSCodes \== []
|
||||
-> atom_codes(NS, NSCodes),
|
||||
( ns(Id, NS)
|
||||
-> assert(predicate_ns(Pred, Id))
|
||||
; between(1, infinite, N),
|
||||
atom_concat(ns, N, Id),
|
||||
\+ ns(Id, _)
|
||||
-> rdf_register_ns(Id, NS),
|
||||
print_message(informational,
|
||||
rdf(using_namespace(Id, NS)))
|
||||
),
|
||||
assert(predicate_ns(Pred, Id))
|
||||
; assert(predicate_ns(Pred, -)) % no namespace used
|
||||
).
|
||||
|
||||
xml_codes([]).
|
||||
xml_codes([H|T]) :-
|
||||
xml_code(H),
|
||||
xml_codes(T).
|
||||
|
||||
xml_code(X) :-
|
||||
code_type(X, csym), !.
|
||||
xml_code(0'-). % '
|
||||
|
||||
|
||||
rdf_write_footer(Out) :-
|
||||
format(Out, '</rdf:RDF>~n', []).
|
||||
|
||||
|
||||
/*******************************
|
||||
* ANONYMOUS IDS *
|
||||
*******************************/
|
||||
|
||||
%% node_id_map(+Triples, -IdMap) is det.
|
||||
%
|
||||
% Create an assoc Resource -> NodeID for those anonymous resources
|
||||
% in Triples that need a NodeID. This implies all anonymous
|
||||
% resources that are used multiple times as object value.
|
||||
|
||||
node_id_map(Triples, IdMap) :-
|
||||
anonymous_objects(Triples, Objs),
|
||||
msort(Objs, Sorted),
|
||||
empty_assoc(IdMap0),
|
||||
nodeid_map(Sorted, 0, IdMap0, IdMap).
|
||||
|
||||
anonymous_objects([], []).
|
||||
anonymous_objects([rdf(_,_,O)|T0], Anon) :-
|
||||
rdf_is_bnode(O), !,
|
||||
Anon = [O|T],
|
||||
anonymous_objects(T0, T).
|
||||
anonymous_objects([_|T0], T) :-
|
||||
anonymous_objects(T0, T).
|
||||
|
||||
nodeid_map([], _, Map, Map).
|
||||
nodeid_map([H,H|T0], Id, Map0, Map) :- !,
|
||||
remove_leading(H, T0, T),
|
||||
atom_concat(bn, Id, NodeId),
|
||||
put_assoc(H, Map0, NodeId, Map1),
|
||||
Id2 is Id + 1,
|
||||
nodeid_map(T, Id2, Map1, Map).
|
||||
nodeid_map([_|T], Id, Map0, Map) :-
|
||||
nodeid_map(T, Id, Map0, Map).
|
||||
|
||||
remove_leading(H, [H|T0], T) :- !,
|
||||
remove_leading(H, T0, T).
|
||||
remove_leading(_, T, T).
|
||||
|
||||
|
||||
/*******************************
|
||||
* TRIPLES *
|
||||
*******************************/
|
||||
|
||||
rdf_write_triples(Triples, NodeIDs, Out) :-
|
||||
rdf_write_triples(Triples, NodeIDs, Out, [], Anon),
|
||||
rdf_write_anon(Anon, NodeIDs, Out, Anon).
|
||||
|
||||
rdf_write_triples([], _, _, Anon, Anon).
|
||||
rdf_write_triples([H|T0], NodeIDs, Out, Anon0, Anon) :-
|
||||
arg(1, H, S),
|
||||
subject_triples(S, [H|T0], T, OnSubject),
|
||||
( rdf_is_bnode(S)
|
||||
-> rdf_write_triples(T, NodeIDs, Out, [anon(S,_,OnSubject)|Anon0], Anon)
|
||||
; rdf_write_subject(OnSubject, S, NodeIDs, Out, Anon0),
|
||||
rdf_write_triples(T, NodeIDs, Out, Anon0, Anon)
|
||||
).
|
||||
|
||||
subject_triples(S, [H|T0], T, [H|M]) :-
|
||||
arg(1, H, S), !,
|
||||
subject_triples(S, T0, T, M).
|
||||
subject_triples(_, T, T, []).
|
||||
|
||||
|
||||
rdf_write_anon([], _, _, _).
|
||||
rdf_write_anon([anon(Subject, Done, Triples)|T], NodeIDs, Out, Anon) :-
|
||||
Done \== true, !,
|
||||
Done = true,
|
||||
rdf_write_subject(Triples, Subject, NodeIDs, Out, Anon),
|
||||
rdf_write_anon(T, NodeIDs, Out, Anon).
|
||||
rdf_write_anon([_|T], NodeIDs, Out, Anon) :-
|
||||
rdf_write_anon(T, NodeIDs, Out, Anon).
|
||||
|
||||
rdf_write_subject(Triples, Subject, NodeIDs, Out, Anon) :-
|
||||
rdf_write_subject(Triples, Out, Subject, NodeIDs, -, 0, Anon), !,
|
||||
format(Out, '~n', []).
|
||||
rdf_write_subject(_, Subject, _, _, _) :-
|
||||
throw(error(rdf_save_failed(Subject), 'Internal error')).
|
||||
|
||||
rdf_write_subject(Triples, Out, Subject, NodeIDs, DefNS, Indent, Anon) :-
|
||||
rdf_equal(rdf:type, RdfType),
|
||||
select(rdf(_, RdfType,Type), Triples, Triples1),
|
||||
\+ rdf_is_bnode(Type),
|
||||
rdf_id(Type, DefNS, TypeId),
|
||||
xml_is_name(TypeId), !,
|
||||
format(Out, '~*|<', [Indent]),
|
||||
rdf_write_id(Out, TypeId),
|
||||
save_about(Out, Subject, NodeIDs),
|
||||
save_attributes(Triples1, DefNS, Out, NodeIDs, TypeId, Indent, Anon).
|
||||
rdf_write_subject(Triples, Out, Subject, NodeIDs, _DefNS, Indent, Anon) :-
|
||||
format(Out, '~*|<rdf:Description', [Indent]),
|
||||
save_about(Out, Subject, NodeIDs),
|
||||
save_attributes(Triples, rdf, Out, NodeIDs, rdf:'Description', Indent, Anon).
|
||||
|
||||
xml_is_name(_NS:Atom) :- !,
|
||||
xml_name(Atom).
|
||||
xml_is_name(Atom) :-
|
||||
xml_name(Atom).
|
||||
|
||||
save_about(Out, Subject, NodeIDs) :-
|
||||
rdf_is_bnode(Subject), !,
|
||||
( get_assoc(Subject, NodeIDs, NodeID)
|
||||
-> format(Out,' rdf:nodeID="~w"', [NodeID])
|
||||
; true
|
||||
).
|
||||
save_about(Out, Subject, _) :-
|
||||
stream_property(Out, encoding(Encoding)),
|
||||
rdf_value(Subject, QSubject, Encoding),
|
||||
format(Out, ' rdf:about="~w"', [QSubject]), !.
|
||||
save_about(_, _, _) :-
|
||||
assertion(fail).
|
||||
|
||||
%% save_attributes(+List, +DefNS, +Out, +NodeIDs, Element, +Indent, +Anon)
|
||||
%
|
||||
% Save the attributes. Short literal attributes are saved in the
|
||||
% tag. Others as the content of the description element. The
|
||||
% begin tag has already been filled.
|
||||
|
||||
save_attributes(Triples, DefNS, Out, NodeIDs, Element, Indent, Anon) :-
|
||||
split_attributes(Triples, InTag, InBody),
|
||||
SubIndent is Indent + 2,
|
||||
save_attributes2(InTag, DefNS, tag, Out, NodeIDs, SubIndent, Anon),
|
||||
( InBody == []
|
||||
-> format(Out, '/>~n', [])
|
||||
; format(Out, '>~n', []),
|
||||
save_attributes2(InBody, _, body, Out, NodeIDs, SubIndent, Anon),
|
||||
format(Out, '~N~*|</~w>~n', [Indent, Element])
|
||||
).
|
||||
|
||||
% split_attributes(+Triples, -HeadAttrs, -BodyAttr)
|
||||
%
|
||||
% Split attribute (Name=Value) list into attributes for the head
|
||||
% and body. Attributes can only be in the head if they are literal
|
||||
% and appear only one time in the attribute list.
|
||||
|
||||
split_attributes(Triples, HeadAttr, BodyAttr) :-
|
||||
duplicate_attributes(Triples, Dupls, Singles),
|
||||
simple_literal_attributes(Singles, HeadAttr, Rest),
|
||||
append(Dupls, Rest, BodyAttr).
|
||||
|
||||
% duplicate_attributes(+Attrs, -Duplicates, -Singles)
|
||||
%
|
||||
% Extract attributes that appear more than onces as we cannot
|
||||
% dublicate an attribute in the head according to the XML rules.
|
||||
|
||||
duplicate_attributes([], [], []).
|
||||
duplicate_attributes([H|T], Dupls, Singles) :-
|
||||
arg(2, H, Name),
|
||||
named_attributes(Name, T, D, R),
|
||||
D \== [],
|
||||
append([H|D], Dupls2, Dupls), !,
|
||||
duplicate_attributes(R, Dupls2, Singles).
|
||||
duplicate_attributes([H|T], Dupls2, [H|Singles]) :-
|
||||
duplicate_attributes(T, Dupls2, Singles).
|
||||
|
||||
named_attributes(_, [], [], []) :- !.
|
||||
named_attributes(Name, [H|T], D, R) :-
|
||||
( arg(2, H, Name)
|
||||
-> D = [H|DT],
|
||||
named_attributes(Name, T, DT, R)
|
||||
; R = [H|RT],
|
||||
named_attributes(Name, T, D, RT)
|
||||
).
|
||||
|
||||
% simple_literal_attributes(+Attributes, -Inline, -Body)
|
||||
%
|
||||
% Split attributes for (literal) attributes to be used in the
|
||||
% begin-tag and ones that have to go into the body of the description.
|
||||
|
||||
simple_literal_attributes([], [], []).
|
||||
simple_literal_attributes([H|TA], [H|TI], B) :-
|
||||
in_tag_attribute(H), !,
|
||||
simple_literal_attributes(TA, TI, B).
|
||||
simple_literal_attributes([H|TA], I, [H|TB]) :-
|
||||
simple_literal_attributes(TA, I, TB).
|
||||
|
||||
in_tag_attribute(rdf(_,P,literal(Text))) :-
|
||||
atom(Text), % may not have lang qualifier
|
||||
atom_length(Text, Len),
|
||||
Len < 60,
|
||||
\+ is_bag_li_predicate(P).
|
||||
|
||||
|
||||
% save_attributes(+List, +DefNS, +TagOrBody, +Out, +NodeIDs, +Indent, +Anon)
|
||||
%
|
||||
% Save a list of attributes.
|
||||
|
||||
save_attributes2([], _, _, _, _, _, _).
|
||||
save_attributes2([H|T], DefNS, Where, Out, NodeIDs, Indent, Anon) :-
|
||||
save_attribute(Where, H, DefNS, Out, NodeIDs, Indent, Anon),
|
||||
save_attributes2(T, DefNS, Where, Out, NodeIDs, Indent, Anon).
|
||||
|
||||
%% save_attribute(+Where, +Triple, +DefNS, +Out, +NodeIDs, +Indent, +Anon)
|
||||
|
||||
save_attribute(tag, rdf(_, Name, literal(Value)), DefNS, Out, _, Indent, _Anon) :-
|
||||
AttIndent is Indent + 2,
|
||||
rdf_att_id(Name, DefNS, NameText),
|
||||
stream_property(Out, encoding(Encoding)),
|
||||
xml_quote_attribute(Value, QVal, Encoding),
|
||||
format(Out, '~N~*|', [AttIndent]),
|
||||
rdf_write_id(Out, NameText),
|
||||
format(Out, '="~w"', [QVal]).
|
||||
save_attribute(body, rdf(_,Name,literal(Literal)), DefNS, Out, _, Indent, _) :- !,
|
||||
rdf_p_id(Name, DefNS, NameText),
|
||||
format(Out, '~N~*|<', [Indent]),
|
||||
rdf_write_id(Out, NameText),
|
||||
( Literal = lang(Lang, Value)
|
||||
-> rdf_id(Lang, DefNS, LangText),
|
||||
format(Out, ' xml:lang="~w">', [LangText])
|
||||
; Literal = type(Type, Value)
|
||||
-> ( rdf_equal(Type, rdf:'XMLLiteral')
|
||||
-> write(Out, ' rdf:parseType="Literal">'),
|
||||
Value = Literal
|
||||
; stream_property(Out, encoding(Encoding)),
|
||||
rdf_value(Type, QVal, Encoding),
|
||||
format(Out, ' rdf:datatype="~w">', [QVal])
|
||||
)
|
||||
; atomic(Literal)
|
||||
-> write(Out, '>'),
|
||||
Value = Literal
|
||||
; write(Out, ' rdf:parseType="Literal">'),
|
||||
Value = Literal
|
||||
),
|
||||
save_attribute_value(Value, Out, Indent),
|
||||
write(Out, '</'), rdf_write_id(Out, NameText), write(Out, '>').
|
||||
save_attribute(body, rdf(_, Name, Value), DefNS, Out, NodeIDs, Indent, Anon) :-
|
||||
rdf_is_bnode(Value),
|
||||
memberchk(anon(Value, Done, ValueTriples), Anon), !,
|
||||
rdf_p_id(Name, DefNS, NameText),
|
||||
format(Out, '~N~*|<', [Indent]),
|
||||
rdf_write_id(Out, NameText),
|
||||
( var(Done)
|
||||
-> Done = true,
|
||||
SubIndent is Indent + 2,
|
||||
( rdf_equal(RdfType, rdf:type),
|
||||
rdf_equal(ListClass, rdf:'List'),
|
||||
memberchk(rdf(_, RdfType, ListClass), ValueTriples)
|
||||
-> format(Out, ' rdf:parseType="Collection">~n', []),
|
||||
rdf_save_list(ValueTriples, Out, Value, NodeIDs, DefNS, SubIndent, Anon)
|
||||
; format(Out, '>~n', []),
|
||||
rdf_write_subject(ValueTriples, Out, Value, NodeIDs, DefNS, SubIndent, Anon)
|
||||
),
|
||||
format(Out, '~N~*|</', [Indent]),
|
||||
rdf_write_id(Out, NameText),
|
||||
format(Out, '>~n', [])
|
||||
; get_assoc(Value, NodeIDs, NodeID)
|
||||
-> format(Out, ' rdf:nodeID="~w"/>', [NodeID])
|
||||
; assertion(fail)
|
||||
).
|
||||
save_attribute(body, rdf(_, Name, Value), DefNS, Out, _, Indent, _Anon) :-
|
||||
stream_property(Out, encoding(Encoding)),
|
||||
rdf_value(Value, QVal, Encoding),
|
||||
rdf_p_id(Name, DefNS, NameText),
|
||||
format(Out, '~N~*|<', [Indent]),
|
||||
rdf_write_id(Out, NameText),
|
||||
format(Out, ' rdf:resource="~w"/>', [QVal]).
|
||||
|
||||
save_attribute_value(Value, Out, _) :- % strings
|
||||
atom(Value), !,
|
||||
stream_property(Out, encoding(Encoding)),
|
||||
xml_quote_cdata(Value, QVal, Encoding),
|
||||
write(Out, QVal).
|
||||
save_attribute_value(Value, Out, _) :- % numbers
|
||||
number(Value), !,
|
||||
writeq(Out, Value). % quoted: preserve floats
|
||||
save_attribute_value(Value, Out, Indent) :-
|
||||
xml_is_dom(Value), !,
|
||||
XMLIndent is Indent+2,
|
||||
xml_write(Out, Value,
|
||||
[ header(false),
|
||||
indent(XMLIndent)
|
||||
]).
|
||||
save_attribute_value(Value, _Out, _) :-
|
||||
throw(error(save_attribute_value(Value), _)).
|
||||
|
||||
rdf_save_list(_, _, List, _, _, _, _) :-
|
||||
rdf_equal(List, rdf:nil), !.
|
||||
rdf_save_list(ListTriples, Out, List, NodeIDs, DefNS, Indent, Anon) :-
|
||||
rdf_equal(RdfFirst, rdf:first),
|
||||
memberchk(rdf(List, RdfFirst, First), ListTriples),
|
||||
( rdf_is_bnode(First),
|
||||
memberchk(anon(First, true, FirstTriples), Anon)
|
||||
-> nl(Out),
|
||||
rdf_write_subject(FirstTriples, Out, First, NodeIDs, DefNS, Indent, Anon)
|
||||
; stream_property(Out, encoding(Encoding)),
|
||||
rdf_value(First, QVal, Encoding),
|
||||
format(Out, '~N~*|<rdf:Description about="~w"/>',
|
||||
[Indent, QVal])
|
||||
),
|
||||
( rdf_equal(RdfRest, rdf:rest),
|
||||
memberchk(rdf(List, RdfRest, List2), ListTriples),
|
||||
\+ rdf_equal(List2, rdf:nil),
|
||||
memberchk(anon(List2, true, List2Triples), Anon)
|
||||
-> rdf_save_list(List2Triples, Out, List2, NodeIDs, DefNS, Indent, Anon)
|
||||
; true
|
||||
).
|
||||
|
||||
%% rdf_p_id(+Resource, +DefNS, -NSLocal)
|
||||
%
|
||||
% As rdf_id/3 for predicate names. Maps _:<N> to rdf:li.
|
||||
%
|
||||
% @tbd Ensure we are talking about an rdf:Bag
|
||||
|
||||
rdf_p_id(LI, _, 'rdf:li') :-
|
||||
is_bag_li_predicate(LI), !.
|
||||
rdf_p_id(Resource, DefNS, NSLocal) :-
|
||||
rdf_id(Resource, DefNS, NSLocal).
|
||||
|
||||
%% is_bag_li_predicate(+Pred) is semidet.
|
||||
%
|
||||
% True if Pred is _:N, as used for members of an rdf:Bag, rdf:Seq
|
||||
% or rdf:Alt.
|
||||
|
||||
is_bag_li_predicate(Pred) :-
|
||||
atom_concat('_:', AN, Pred),
|
||||
catch(atom_number(AN, N), _, true), integer(N), N >= 0, !.
|
||||
|
||||
|
||||
%% rdf_id(+Resource, +DefNS, -NSLocal)
|
||||
%
|
||||
% Generate a NS:Local name for Resource given the indicated
|
||||
% default namespace. This call is used for elements.
|
||||
|
||||
rdf_id(Id, NS, NS:Local) :-
|
||||
ns(NS, Full),
|
||||
Full \== '',
|
||||
atom_concat(Full, Local, Id), !.
|
||||
rdf_id(Id, _, NS:Local) :-
|
||||
ns(NS, Full),
|
||||
Full \== '',
|
||||
atom_concat(Full, Local, Id), !.
|
||||
rdf_id(Id, _, Id).
|
||||
|
||||
|
||||
%% rdf_write_id(+Out, +NSLocal) is det.
|
||||
%
|
||||
% Write an identifier. We cannot use native write on it as both NS
|
||||
% and Local can be operators.
|
||||
|
||||
rdf_write_id(Out, NS:Local) :- !,
|
||||
format(Out, '~w:~w', [NS, Local]).
|
||||
rdf_write_id(Out, Atom) :-
|
||||
write(Out, Atom).
|
||||
|
||||
|
||||
rdf_att_id(Id, _, NS:Local) :-
|
||||
ns(NS, Full),
|
||||
Full \== '',
|
||||
atom_concat(Full, Local, Id), !.
|
||||
rdf_att_id(Id, _, Id).
|
||||
|
||||
|
||||
%% rdf_value(+Resource, -Text, +Encoding)
|
||||
%
|
||||
% According to "6.4 RDF URI References" of the RDF Syntax
|
||||
% specification, a URI reference is UNICODE string not containing
|
||||
% control sequences, represented as UTF-8 and then as escaped
|
||||
% US-ASCII.
|
||||
%
|
||||
% NOTE: the to_be_described/1 trick ensures entity rewrite in
|
||||
% resources that start with 'http://t-d-b.org?'. This is a of a
|
||||
% hack to save the artchive data in the MultimediaN project. We
|
||||
% should use a more general mechanism.
|
||||
|
||||
rdf_value(V, Text, Encoding) :-
|
||||
to_be_described(Prefix),
|
||||
atom_concat(Prefix, V1, V),
|
||||
ns(NS, Full),
|
||||
atom_concat(Full, Local, V1), !,
|
||||
rdf_quote_uri(Local, QLocal0),
|
||||
xml_quote_attribute(QLocal0, QLocal, Encoding),
|
||||
atomic_list_concat([Prefix, '&', NS, (';'), QLocal], Text).
|
||||
rdf_value(V, Text, Encoding) :-
|
||||
ns(NS, Full),
|
||||
atom_concat(Full, Local, V), !,
|
||||
rdf_quote_uri(Local, QLocal0),
|
||||
xml_quote_attribute(QLocal0, QLocal, Encoding),
|
||||
atomic_list_concat(['&', NS, (';'), QLocal], Text).
|
||||
rdf_value(V, Q, Encoding) :-
|
||||
rdf_quote_uri(V, Q0),
|
||||
xml_quote_attribute(Q0, Q, Encoding).
|
||||
|
||||
to_be_described('http://t-d-b.org?').
|
||||
|
||||
|
||||
/*******************************
|
||||
* UTIL *
|
||||
*******************************/
|
||||
|
||||
ns(Id, Full) :-
|
||||
rdf_db:ns(Id, Full).
|
||||
|
|
@ -0,0 +1,237 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
|
||||
<!DOCTYPE rdf:RDF [
|
||||
<!ENTITY rdfs 'http://www.w3.org/2000/01/rdf-schema#'>
|
||||
<!ENTITY rdf 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'>
|
||||
]>
|
||||
|
||||
<rdf:RDF
|
||||
xmlns:rdf="&rdf;"
|
||||
xmlns:rdfs="&rdfs;">
|
||||
|
||||
<rdfs:Class rdf:about="&rdfs;Resource">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">Resource</rdfs:label>
|
||||
<rdfs:comment>The class resource, everything.</rdfs:comment>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdf:Property rdf:about="&rdf;type">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">type</rdfs:label>
|
||||
<rdfs:comment>Indicates membership of a class</rdfs:comment>
|
||||
<rdfs:range rdf:resource="&rdfs;Class"/>
|
||||
<rdfs:domain rdf:resource="&rdfs;Resource"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdfs:Class rdf:about="&rdfs;Class">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">Class</rdfs:label>
|
||||
<rdfs:comment>The concept of Class</rdfs:comment>
|
||||
<rdfs:subClassOf rdf:resource="&rdfs;Resource"/>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdf:Property rdf:about="&rdfs;subClassOf">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">subClassOf</rdfs:label>
|
||||
<rdfs:comment>Indicates membership of a class</rdfs:comment>
|
||||
<rdfs:range rdf:resource="&rdfs;Class"/>
|
||||
<rdfs:domain rdf:resource="&rdfs;Class"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property rdf:about="&rdfs;subPropertyOf">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">subPropertyOf</rdfs:label>
|
||||
<rdfs:comment>Indicates specialization of properties</rdfs:comment>
|
||||
<rdfs:range rdf:resource="&rdf;Property"/>
|
||||
<rdfs:domain rdf:resource="&rdf;Property"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdfs:Class rdf:about="&rdf;Property">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">Property</rdfs:label>
|
||||
<rdfs:comment>The concept of a property.</rdfs:comment>
|
||||
<rdfs:subClassOf rdf:resource="&rdfs;Resource"/>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdf:Property rdf:about="&rdfs;comment">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">comment</rdfs:label>
|
||||
<rdfs:comment>Use this for descriptions</rdfs:comment>
|
||||
<rdfs:domain rdf:resource="&rdfs;Resource"/>
|
||||
<rdfs:range rdf:resource="&rdfs;Literal"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property rdf:about="&rdfs;label">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">label</rdfs:label>
|
||||
<rdfs:comment>Provides a human-readable version of a resource name.</rdfs:comment>
|
||||
<rdfs:domain rdf:resource="&rdfs;Resource"/>
|
||||
<rdfs:range rdf:resource="&rdfs;Literal"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property rdf:about="&rdfs;domain">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">domain</rdfs:label>
|
||||
<rdfs:comment>A domain class for a property type</rdfs:comment>
|
||||
<rdfs:range rdf:resource="&rdfs;Class"/>
|
||||
<rdfs:domain rdf:resource="&rdf;Property"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property rdf:about="&rdfs;range">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">range</rdfs:label>
|
||||
<rdfs:comment>A range class for a property type</rdfs:comment>
|
||||
<rdfs:range rdf:resource="&rdfs;Class"/>
|
||||
<rdfs:domain rdf:resource="&rdf;Property"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property rdf:about="&rdfs;seeAlso">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">seeAlso</rdfs:label>
|
||||
<rdfs:comment>A resource that provides information about the subject resource</rdfs:comment>
|
||||
<rdfs:range rdf:resource="&rdfs;Resource"/>
|
||||
<rdfs:domain rdf:resource="&rdfs;Resource"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property rdf:about="&rdfs;isDefinedBy">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdf:type resource="&rdf;Property"/>
|
||||
<rdfs:subPropertyOf rdf:resource="&rdfs;seeAlso"/>
|
||||
<rdfs:label xml:lang="en">isDefinedBy</rdfs:label>
|
||||
<rdfs:comment>Indicates the namespace of a resource</rdfs:comment>
|
||||
<rdfs:range rdf:resource="&rdfs;Resource"/>
|
||||
<rdfs:domain rdf:resource="&rdfs;Resource"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdfs:Class rdf:about="&rdfs;Literal">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">Literal</rdfs:label>
|
||||
<rdfs:comment>This represents the set of atomic values, eg. textual strings.</rdfs:comment>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:Class rdf:about="&rdf;Statement">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">Statement</rdfs:label>
|
||||
<rdfs:subClassOf rdf:resource="&rdfs;Resource"/>
|
||||
<rdfs:comment>The class of RDF statements.</rdfs:comment>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdf:Property about="&rdf;subject">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">subject</rdfs:label>
|
||||
<rdfs:comment>The subject of an RDF statement.</rdfs:comment>
|
||||
<rdfs:domain rdf:resource="&rdf;Statement"/>
|
||||
<rdfs:range rdf:resource="&rdfs;Resource"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property about="&rdf;predicate">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">predicate</rdfs:label>
|
||||
<rdfs:comment>the predicate of an RDF statement.</rdfs:comment>
|
||||
<rdfs:domain rdf:resource="&rdf;Statement"/>
|
||||
<rdfs:range rdf:resource="&rdf;Property"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property about="&rdf;object">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">object</rdfs:label>
|
||||
<rdfs:comment>The object of an RDF statement.</rdfs:comment>
|
||||
<rdfs:domain rdf:resource="&rdf;Statement"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdfs:Class rdf:about="&rdfs;Container">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">Container</rdfs:label>
|
||||
<rdfs:subClassOf rdf:resource="&rdfs;Resource"/>
|
||||
<rdfs:comment>This represents the set Containers.</rdfs:comment>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:Class rdf:about="&rdf;Bag">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">Bag</rdfs:label>
|
||||
<rdfs:comment xml:lang="en">An unordered collection.</rdfs:comment>
|
||||
<rdfs:subClassOf rdf:resource="&rdfs;Container"/>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:Class rdf:about="&rdf;Seq">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">Seq</rdfs:label>
|
||||
<rdfs:comment xml:lang="en">An ordered collection.</rdfs:comment>
|
||||
<rdfs:subClassOf rdf:resource="&rdfs;Container"/>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:Class rdf:about="&rdf;Alt">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">Alt</rdfs:label>
|
||||
<rdfs:comment xml:lang="en">A collection of alternatives.</rdfs:comment>
|
||||
<rdfs:subClassOf rdf:resource="&rdfs;Container"/>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:Class rdf:about="&rdfs;ContainerMembershipProperty">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">ContainerMembershipProperty</rdfs:label>
|
||||
<rdfs:comment>The container membership properties, rdf:1, rdf:2, ..., all of which are sub-properties of 'member'.</rdfs:comment>
|
||||
<rdfs:subClassOf rdf:resource="&rdf;Property"/>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdf:Property rdf:about="&rdfs;member">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">member</rdfs:label>
|
||||
<rdfs:comment>a member of a container</rdfs:comment>
|
||||
<rdfs:domain rdf:resource="&rdfs;Container"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property rdf:about="&rdf;value">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">value</rdfs:label>
|
||||
<rdfs:comment>Identifies the principal value (usually a string) of a property when the property value is a structured resource</rdfs:comment>
|
||||
<rdfs:domain rdf:resource="&rdfs;Resource"/>
|
||||
</rdf:Property>
|
||||
|
||||
<!-- the following are new additions, Nov 2002 -->
|
||||
|
||||
<rdfs:Class rdf:about="&rdf;List">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">List</rdfs:label>
|
||||
<rdfs:comment xml:lang="en">The class of RDF Lists</rdfs:comment>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdf:List rdf:about="&rdf;nil">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">nil</rdfs:label>
|
||||
<rdfs:comment xml:lang="en">The empty list, with no items in it. If the rest of a list is nil then the list has no more items in it.</rdfs:comment>
|
||||
</rdf:List>
|
||||
|
||||
<rdf:Property rdf:about="&rdf;first">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">first</rdfs:label>
|
||||
<rdfs:comment xml:lang="en">The first item in an RDF list. Also often called the head.</rdfs:comment>
|
||||
<rdfs:domain rdf:resource="&rdf;List"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property rdf:about="&rdf;rest">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdf;"/>
|
||||
<rdfs:label xml:lang="en">rest</rdfs:label>
|
||||
<rdfs:comment xml:lang="en">The rest of an RDF list after the first item. Also often called the tail.</rdfs:comment>
|
||||
<rdfs:domain rdf:resource="&rdf;List"/>
|
||||
<rdfs:range rdf:resource="&rdf;List"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdfs:Class rdf:about="&rdfs;Datatype">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">Datatype</rdfs:label>
|
||||
<rdfs:comment xml:lang="en">The class of datatypes.</rdfs:comment>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:Class rdf:about="&rdfs;XMLLiteral">
|
||||
<rdfs:isDefinedBy rdf:resource="&rdfs;"/>
|
||||
<rdfs:label xml:lang="en">XMLLiteral</rdfs:label>
|
||||
<rdfs:comment>The class of XML literals.</rdfs:comment>
|
||||
</rdfs:Class>
|
||||
|
||||
|
||||
<rdf:Description rdf:about="&rdfs;">
|
||||
<rdfs:seeAlso rdf:resource="http://www.w3.org/2000/01/rdf-schema-more"/>
|
||||
</rdf:Description>
|
||||
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,161 @@
|
|||
/* Part of SWI-Prolog
|
||||
|
||||
Author: Jan Wielemaker
|
||||
E-mail: J.Wielemaker@uva.nl
|
||||
WWW: http://www.swi-prolog.org
|
||||
Copyright (C): 2010, University of Amsterdam
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
As a special exception, if you link this library with other files,
|
||||
compiled with a Free Software compiler, to produce an executable, this
|
||||
library does not by itself cause the resulting executable to be covered
|
||||
by the GNU General Public License. This exception does not however
|
||||
invalidate any other reasons why the executable file might be covered by
|
||||
the GNU General Public License.
|
||||
*/
|
||||
|
||||
:- module(rewrite,
|
||||
[ rewrite/2, % +Rule, +Input
|
||||
rew_term_expansion/2,
|
||||
rew_goal_expansion/2,
|
||||
|
||||
op(1200, xfx, (::=))
|
||||
]).
|
||||
:- use_module(library(quintus)).
|
||||
|
||||
:- meta_predicate
|
||||
rewrite(1, +).
|
||||
|
||||
/*******************************
|
||||
* COMPILATION *
|
||||
*******************************/
|
||||
|
||||
rew_term_expansion((Rule ::= RuleBody), (Head :- Body)) :-
|
||||
translate(RuleBody, Term, Body0),
|
||||
simplify(Body0, Body),
|
||||
Rule =.. [Name|List],
|
||||
Head =.. [Name,Term|List].
|
||||
|
||||
rew_goal_expansion(rewrite(To, From), Goal) :-
|
||||
nonvar(To),
|
||||
To = \Rule,
|
||||
callable(Rule),
|
||||
Rule =.. [Name|List],
|
||||
Goal =.. [Name,From|List].
|
||||
|
||||
|
||||
/*******************************
|
||||
* TOPLEVEL *
|
||||
*******************************/
|
||||
|
||||
%% rewrite(:To, +From)
|
||||
%
|
||||
% Invoke the term-rewriting system
|
||||
|
||||
rewrite(M:T, From) :-
|
||||
( var(T)
|
||||
-> From = T
|
||||
; T = \Rule
|
||||
-> Rule =.. [Name|List],
|
||||
Goal =.. [Name,From|List],
|
||||
M:Goal
|
||||
; match(T, M, From)
|
||||
).
|
||||
|
||||
match(Rule, M, From) :-
|
||||
translate(Rule, From, Code),
|
||||
M:Code.
|
||||
|
||||
translate(Var, Var, true) :-
|
||||
var(Var), !.
|
||||
translate((\Command, !), Var, (Goal, !)) :- !,
|
||||
( callable(Command),
|
||||
Command =.. [Name|List]
|
||||
-> Goal =.. [Name,Var|List]
|
||||
; Goal = rewrite(\Command, Var)
|
||||
).
|
||||
translate(\Command, Var, Goal) :- !,
|
||||
( callable(Command),
|
||||
Command =.. [Name|List]
|
||||
-> Goal =.. [Name,Var|List]
|
||||
; Goal = rewrite(\Command, Var)
|
||||
).
|
||||
translate(Atomic, Atomic, true) :-
|
||||
atomic(Atomic), !.
|
||||
translate(C, _, Cmd) :-
|
||||
command(C, Cmd), !.
|
||||
translate((A, B), T, Code) :-
|
||||
( command(A, Cmd)
|
||||
-> !, translate(B, T, C),
|
||||
Code = (Cmd, C)
|
||||
; command(B, Cmd)
|
||||
-> !, translate(A, T, C),
|
||||
Code = (C, Cmd)
|
||||
).
|
||||
translate(Term0, Term, Command) :-
|
||||
functor(Term0, Name, Arity),
|
||||
functor(Term, Name, Arity),
|
||||
translate_args(0, Arity, Term0, Term, Command).
|
||||
|
||||
translate_args(N, N, _, _, true) :- !.
|
||||
translate_args(I0, Arity, T0, T1, (C0,C)) :-
|
||||
I is I0 + 1,
|
||||
arg(I, T0, A0),
|
||||
arg(I, T1, A1),
|
||||
translate(A0, A1, C0),
|
||||
translate_args(I, Arity, T0, T1, C).
|
||||
|
||||
command(0, _) :- !, % catch variables
|
||||
fail.
|
||||
command({A}, A).
|
||||
command(!, !).
|
||||
|
||||
/*******************************
|
||||
* SIMPLIFY *
|
||||
*******************************/
|
||||
|
||||
%% simplify(+Raw, -Simplified)
|
||||
%
|
||||
% Get rid of redundant `true' goals generated by translate/3.
|
||||
|
||||
simplify(V, V) :-
|
||||
var(V), !.
|
||||
simplify((A0,B), A) :-
|
||||
B == true, !,
|
||||
simplify(A0, A).
|
||||
simplify((A,B0), B) :-
|
||||
A == true, !,
|
||||
simplify(B0, B).
|
||||
simplify((A0, B0), C) :- !,
|
||||
simplify(A0, A),
|
||||
simplify(B0, B),
|
||||
( ( A \== A0
|
||||
; B \== B0
|
||||
)
|
||||
-> simplify((A,B), C)
|
||||
; C = (A,B)
|
||||
).
|
||||
simplify(X, X).
|
||||
|
||||
/*******************************
|
||||
* XREF *
|
||||
*******************************/
|
||||
|
||||
:- multifile
|
||||
prolog:called_by/2.
|
||||
|
||||
prolog:called_by(rewrite(Spec, _Term), Called) :-
|
||||
findall(G+1, sub_term(\G, Spec), Called).
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
<?xml version="1.0"?>
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:ex="http://example.org/stuff/1.0/">
|
||||
<rdf:Description rdf:about="http://example.org/basket">
|
||||
<ex:hasFruit rdf:ID="l1" rdf:parseType="Collection">
|
||||
<rdf:Description rdf:about="http://example.org/banana"/>
|
||||
<rdf:Description rdf:about="http://example.org/apple"/>
|
||||
<rdf:Description rdf:about="http://example.org/pear"/>
|
||||
</ex:hasFruit>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
rdf('http://example.org/basket', 'http://example.org/stuff/1.0/hasFruit', '__List1').
|
||||
rdf('#l1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement').
|
||||
rdf('#l1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#subject', 'http://example.org/basket').
|
||||
rdf('#l1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate', 'http://example.org/stuff/1.0/hasFruit').
|
||||
rdf('#l1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#object', '__List1').
|
||||
rdf('__List1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#List').
|
||||
rdf('__List1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#first', 'http://example.org/banana').
|
||||
rdf('__List1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#rest', '__List2').
|
||||
rdf('__List2', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#List').
|
||||
rdf('__List2', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#first', 'http://example.org/apple').
|
||||
rdf('__List2', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#rest', '__List3').
|
||||
rdf('__List3', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#List').
|
||||
rdf('__List3', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#first', 'http://example.org/pear').
|
||||
rdf('__List3', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#rest', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#nil').
|
||||
|
|
@ -0,0 +1 @@
|
|||
rdf('http://www.w3.org/Home/Lassila', 'http://description.org/schema/':'Creator', literal('Ora Lassila')).
|
||||
|
|
@ -0,0 +1 @@
|
|||
rdf('http://www.swi.psy.uva.nl/projects/SWI-Prolog/', 'http://description.org/schema/':'Creator', literal('Jan Wielemaker')).
|
||||
|
|
@ -0,0 +1 @@
|
|||
rdf('http://www.w3.org/Home/Lassila', 'http://description.org/schema/':'Creator', literal('Ora Lassila')).
|
||||
|
|
@ -0,0 +1 @@
|
|||
rdf('http://www.w3.org/Home/Lassila', 'http://description.org/schema/':'Creator', literal('Ora Lassila')).
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
rdf('http://www.w3.org', 'http://description.org/schema/Publisher', literal('World Wide Web Consortium')).
|
||||
rdf('http://www.w3.org', 'http://description.org/schema/Title', literal('W3C Home Page')).
|
||||
rdf('http://www.w3.org', 'http://description.org/schema/Date', literal('1998-10-03T02:27')).
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
rdf('http://www.w3.org', 'http://description.org/schema/Publisher', literal('World Wide Web Consortium')).
|
||||
rdf('http://www.w3.org', 'http://description.org/schema/Title', literal('W3C Home Page')).
|
||||
rdf('http://www.w3.org', 'http://description.org/schema/Date', literal('1998-10-03T02:27')).
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
rdf('http://www.w3.org/Home/Lassila', 'http://description.org/schema/':'Creator', 'http://www.w3.org/staffId/85740').
|
||||
rdf('http://www.w3.org/staffId/85740', 'http://description.org/schema/':'Name', literal('Ora Lassila')).
|
||||
rdf('http://www.w3.org/staffId/85740', 'http://description.org/schema/':'Email', literal('lassila@w3.org')).
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
rdf('http://www.w3.org/staffId/85740', 'http://description.org/schema/':'Name', literal('Ora Lassila')).
|
||||
rdf('http://www.w3.org/staffId/85740', 'http://description.org/schema/':'Email', literal('lassila@w3.org')).
|
||||
rdf('http://www.w3.org/Home/Lassila', 'http://description.org/schema/':'Creator', 'http://www.w3.org/staffId/85740').
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
rdf('http://www.w3.org/staffId/85740', 'http://description.org/schema/':'Name', literal('Ora Lassila')).
|
||||
rdf('http://www.w3.org/staffId/85740', 'http://description.org/schema/':'Email', literal('lassila@w3.org')).
|
||||
rdf('http://www.w3.org/Home/Lassila', 'http://description.org/schema/':'Creator', 'http://www.w3.org/staffId/85740').
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
rdf('http://www.w3.org/staffId/85740', rdf:type, 'http://description.org/schema/Person').
|
||||
rdf('http://www.w3.org/staffId/85740', 'http://description.org/view/':'Name', literal('Ora Lassila')).
|
||||
rdf('http://www.w3.org/staffId/85740', 'http://description.org/view/':'Email', literal('lassila@w3.org')).
|
||||
rdf('http://www.w3.org/Home/Lassila', 'http://description.org/schema/':'Creator', 'http://www.w3.org/staffId/85740').
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
rdf('JW', sex, literal(male)).
|
||||
rdf('JW', employed_at, literal('SWI')).
|
||||
rdf('SWI-prolog', 'http://description.org/schema/':'Creator', 'JW').
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
rdf('http://www.w3.org/staffId/85740', rdf:type, 'http://description.org/schema/Person').
|
||||
rdf('http://www.w3.org/staffId/85740', 'http://description.org/view/':'Name', literal('Ora Lassila')).
|
||||
rdf('http://www.w3.org/staffId/85740', 'http://description.org/view/':'Email', literal('lassila@w3.org')).
|
||||
rdf('http://www.w3.org/Home/Lassila', 'http://description.org/schema/':'Creator', 'http://www.w3.org/staffId/85740').
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
rdf('__Bag1', rdf:type, rdf:'Bag').
|
||||
rdf('__Bag1', rdf:'_1', 'http://mycollege.edu/students/Amy').
|
||||
rdf('__Bag1', rdf:'_2', 'http://mycollege.edu/students/Tim').
|
||||
rdf('__Bag1', rdf:'_3', 'http://mycollege.edu/students/John').
|
||||
rdf('__Bag1', rdf:'_4', 'http://mycollege.edu/students/Mary').
|
||||
rdf('__Bag1', rdf:'_5', 'http://mycollege.edu/students/Sue').
|
||||
rdf('http://mycollege.edu/courses/6.001', 'http://description.org/schema/':students, '__Bag1').
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
rdf('__Alt1', rdf:type, rdf:'Alt').
|
||||
rdf('__Alt1', rdf:'_1', 'ftp://ftp.x.org').
|
||||
rdf('__Alt1', rdf:'_2', 'ftp://ftp.cs.purdue.edu').
|
||||
rdf('__Alt1', rdf:'_3', 'ftp://ftp.eu.net').
|
||||
rdf('http://x.org/packages/X11', 'http://description.org/schema/':'DistributionSite', '__Alt1').
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
rdf('__Description1', rdf:subject, 'http://www.w3.org/Home/Lassila').
|
||||
rdf('__Description1', rdf:predicate, 'http://description.org/schema/Creator').
|
||||
rdf('__Description1', rdf:object, literal('Ora Lassila')).
|
||||
rdf('__Description1', rdf:type, 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement').
|
||||
rdf('__Description1', 'http://description.org/schema/':attributedTo, literal('Ralph Swick')).
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
rdf('#JSPapersByDate', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Seq').
|
||||
rdf('#JSPapersByDate', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_1', 'http://www.dogworld.com/Aug96.doc').
|
||||
rdf('#JSPapersByDate', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_2', 'http://www.webnuts.net/Jan97.html').
|
||||
rdf('#JSPapersByDate', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_3', 'http://www.carchat.com/Sept97.html').
|
||||
rdf('#JSPapersBySubj', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Seq').
|
||||
rdf('#JSPapersBySubj', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_1', 'http://www.carchat.com/Sept97.html').
|
||||
rdf('#JSPapersBySubj', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_2', 'http://www.dogworld.com/Aug96.doc').
|
||||
rdf('#JSPapersBySubj', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_3', 'http://www.webnuts.net/Jan97.html').
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
rdf('#CreatorsAlphabeticalBySurname', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Seq').
|
||||
rdf('#CreatorsAlphabeticalBySurname', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_1', literal('Mary Andrew')).
|
||||
rdf('#CreatorsAlphabeticalBySurname', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_2', literal('Jacky Crystal')).
|
||||
rdf('http://www.foo.com/cool.html', 'http://purl.org/metadata/dublin_core#Creator', '#CreatorsAlphabeticalBySurname').
|
||||
rdf('#MirroredSites', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Bag').
|
||||
rdf('#MirroredSites', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_1', 'http://www.foo.com.au/cool.html').
|
||||
rdf('#MirroredSites', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_2', 'http://www.foo.com.it/cool.html').
|
||||
rdf('http://www.foo.com/cool.html', 'http://purl.org/metadata/dublin_core#Identifier', '#MirroredSites').
|
||||
rdf('__Description1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Alt').
|
||||
rdf('__Description1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_1', literal(lang(en, 'The Coolest Web Page'))).
|
||||
rdf('__Description1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_2', literal(lang(it, 'Il Pagio di Web Fuba'))).
|
||||
rdf('http://www.foo.com/cool.html', 'http://purl.org/metadata/dublin_core#Title', '__Description1').
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
rdf('__Description1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#':value, literal('020 - Library Science')).
|
||||
rdf('__Description1', 'http://mycorp.com/schemas/my-schema#':'Classification', literal('Dewey Decimal Code')).
|
||||
rdf('http://www.webnuts.net/Jan97.html', 'http://purl.org/metadata/dublin_core#':'Subject', '__Description1').
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
rdf('__Description1', rdf:value, literal('200')).
|
||||
rdf('__Description1', 'http://www.nist.gov/units/':units, 'http://www.nist.gov/units/Pounds').
|
||||
rdf('John_Smith', 'http://www.nist.gov/units/':weight, '__Description1').
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
rdf('#JW', 'http://description.org/schema/name', literal('Jan Wielemaker')).
|
||||
rdf('#JW', 'http://description.org/schema/works_at', literal('SWI')).
|
||||
rdf('http://www.swi.psy.uva.nl/projects/SWI-Prolog/', 'http://description.org/schema/Creator', '#JW').
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
rdf('http://www.dlib.org', 'http://purl.org/metadata/dublin_core#Title', literal('D-Lib Program - Research in Digital Libraries')).
|
||||
rdf('http://www.dlib.org', 'http://purl.org/metadata/dublin_core#Description', literal('The D-Lib program supports the community of people\n with research interests in digital libraries and electronic\n publishing.')).
|
||||
rdf('http://www.dlib.org', 'http://purl.org/metadata/dublin_core#Publisher', literal('Corporation For National Research Initiatives')).
|
||||
rdf('http://www.dlib.org', 'http://purl.org/metadata/dublin_core#Date', literal('1995-01-07')).
|
||||
rdf('__Bag1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Bag').
|
||||
rdf('__Bag1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_1', literal('Research; statistical methods')).
|
||||
rdf('__Bag1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_2', literal('Education, research, related topics')).
|
||||
rdf('__Bag1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_3', literal('Library use Studies')).
|
||||
rdf('http://www.dlib.org', 'http://purl.org/metadata/dublin_core#Subject', '__Bag1').
|
||||
rdf('http://www.dlib.org', 'http://purl.org/metadata/dublin_core#Type', literal('World Wide Web Home Page')).
|
||||
rdf('http://www.dlib.org', 'http://purl.org/metadata/dublin_core#Format', literal('text/html')).
|
||||
rdf('http://www.dlib.org', 'http://purl.org/metadata/dublin_core#Language', literal(en)).
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
rdf('http://www.dlib.org/dlib/may98/05contents.html', 'http://purl.org/metadata/dublin_core#Title', literal('DLIB Magazine - The Magazine for Digital Library Research\n - May 1998')).
|
||||
rdf('http://www.dlib.org/dlib/may98/05contents.html', 'http://purl.org/metadata/dublin_core#Description', literal('D-LIB magazine is a monthly compilation of\n contributed stories, commentary, and briefings.')).
|
||||
rdf('__Description1', 'http://purl.org/metadata/dublin_core_qualifiers#AgentType', 'http://purl.org/metadata/dublin_core_qualifiers#Editor').
|
||||
rdf('__Description1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#value', literal('Amy Friedlander')).
|
||||
rdf('http://www.dlib.org/dlib/may98/05contents.html', 'http://purl.org/metadata/dublin_core#Contributor', '__Description1').
|
||||
rdf('http://www.dlib.org/dlib/may98/05contents.html', 'http://purl.org/metadata/dublin_core#Publisher', literal('Corporation for National Research Initiatives')).
|
||||
rdf('http://www.dlib.org/dlib/may98/05contents.html', 'http://purl.org/metadata/dublin_core#Date', literal('1998-01-05')).
|
||||
rdf('http://www.dlib.org/dlib/may98/05contents.html', 'http://purl.org/metadata/dublin_core#Type', literal('electronic journal')).
|
||||
rdf('__Bag1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Bag').
|
||||
rdf('__Bag1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_1', literal('library use studies')).
|
||||
rdf('__Bag1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_2', literal('magazines and newspapers')).
|
||||
rdf('http://www.dlib.org/dlib/may98/05contents.html', 'http://purl.org/metadata/dublin_core#Subject', '__Bag1').
|
||||
rdf('http://www.dlib.org/dlib/may98/05contents.html', 'http://purl.org/metadata/dublin_core#Format', literal('text/html')).
|
||||
rdf('http://www.dlib.org/dlib/may98/05contents.html', 'http://purl.org/metadata/dublin_core#Identifier', literal('urn:issn:1082-9873')).
|
||||
rdf('__Description2', 'http://purl.org/metadata/dublin_core_qualifiers#RelationType', 'http://purl.org/metadata/dublin_core_qualifiers#IsPartOf').
|
||||
rdf('__Description2', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#value', 'http://www.dlib.org').
|
||||
rdf('http://www.dlib.org/dlib/may98/05contents.html', 'http://purl.org/metadata/dublin_core#Relation', '__Description2').
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
rdf('http://www.dlib.org/dlib/may98/miller/05miller.html', 'http://purl.org/metadata/dublin_core#':'Title', literal('An Introduction to the Resource Description Framework')).
|
||||
rdf('http://www.dlib.org/dlib/may98/miller/05miller.html', 'http://purl.org/metadata/dublin_core#':'Creator', literal('Eric J. Miller')).
|
||||
rdf('http://www.dlib.org/dlib/may98/miller/05miller.html', 'http://purl.org/metadata/dublin_core#':'Description', literal('The Resource Description Framework (RDF) is an\n infrastructure that enables the encoding, exchange and reuse of\n structured metadata. rdf is an application of xml that imposes needed\n structural constraints to provide unambiguous methods of expressing\n semantics. rdf additionally provides a means for publishing both\n human-readable and machine-processable vocabularies designed to\n encourage the reuse and extension of metadata semantics among\n disparate information communities. the structural constraints rdf\n imposes to support the consistent encoding and exchange of\n standardized metadata provides for the interchangeability of separate\n packages of metadata defined by different resource description\n communities. ')).
|
||||
rdf('http://www.dlib.org/dlib/may98/miller/05miller.html', 'http://purl.org/metadata/dublin_core#':'Publisher', literal('Corporation for National Research Initiatives')).
|
||||
rdf('__Bag1', rdf:type, rdf:'Bag').
|
||||
rdf('__Bag1', rdf:'_1', literal('machine-readable catalog record formats')).
|
||||
rdf('__Bag1', rdf:'_2', literal('applications of computer file organization and\n\t access methods')).
|
||||
rdf('http://www.dlib.org/dlib/may98/miller/05miller.html', 'http://purl.org/metadata/dublin_core#':'Subject', '__Bag1').
|
||||
rdf('http://www.dlib.org/dlib/may98/miller/05miller.html', 'http://purl.org/metadata/dublin_core#':'Rights', literal('Copyright @ 1998 Eric Miller')).
|
||||
rdf('http://www.dlib.org/dlib/may98/miller/05miller.html', 'http://purl.org/metadata/dublin_core#':'Type', literal('Electronic Document')).
|
||||
rdf('http://www.dlib.org/dlib/may98/miller/05miller.html', 'http://purl.org/metadata/dublin_core#':'Format', literal('text/html')).
|
||||
rdf('http://www.dlib.org/dlib/may98/miller/05miller.html', 'http://purl.org/metadata/dublin_core#':'Language', literal(en)).
|
||||
rdf('__Description1', 'http://purl.org/metadata/dublin_core_qualifiers#':'RelationType', 'http://purl.org/metadata/dublin_core_qualifiers#IsPartOf').
|
||||
rdf('__Description1', rdf:value, 'http://www.dlib.org/dlib/may98/05contents.html').
|
||||
rdf('http://www.dlib.org/dlib/may98/miller/05miller.html', 'http://purl.org/metadata/dublin_core#':'Relation', '__Description1').
|
||||
|
|
@ -0,0 +1,2 @@
|
|||
rdf('http://mycorp.com/papers/NobelPaper1', 'http://purl.org/metadata/dublin_core#Title', literal(type('http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral', ['Ramifications of ', element('http://www.w3.org/TR/REC-mathml':apply, [], [element('http://www.w3.org/TR/REC-mathml':power, [], []), element('http://www.w3.org/TR/REC-mathml':apply, [], [element('http://www.w3.org/TR/REC-mathml':plus, [], []), element('http://www.w3.org/TR/REC-mathml':ci, [], [a]), element('http://www.w3.org/TR/REC-mathml':ci, [], [b])]), element('http://www.w3.org/TR/REC-mathml':cn, [], ['2'])]), ' to World Peace\n ']))).
|
||||
rdf('http://mycorp.com/papers/NobelPaper1', 'http://purl.org/metadata/dublin_core#Creator', literal('David Hume')).
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
rdf('#CreatorsAlphabeticalBySurname', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Seq').
|
||||
rdf('#CreatorsAlphabeticalBySurname', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_1', literal('Mary Andrew')).
|
||||
rdf('#CreatorsAlphabeticalBySurname', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#_2', literal('Jacky Crystal')).
|
||||
rdf('http://www.foo.com/cool.html', 'http://purl.org/metadata/dublin_core#Creator', '#CreatorsAlphabeticalBySurname').
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
rdf('JW', 'http://description.org/schema/name', literal('Jan Wielemaker')).
|
||||
rdf('JW', 'http://description.org/schema/works_at', literal('SWI')).
|
||||
rdf('http://www.swi.psy.uva.nl/projects/SWI-Prolog/', 'http://description.org/schema/Creator', 'JW').
|
||||
rdf('#pl-creator', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement').
|
||||
rdf('#pl-creator', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#subject', 'http://www.swi.psy.uva.nl/projects/SWI-Prolog/').
|
||||
rdf('#pl-creator', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate', 'http://description.org/schema/Creator').
|
||||
rdf('#pl-creator', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#object', 'JW').
|
||||
|
|
@ -0,0 +1,128 @@
|
|||
rdf('#Resource', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#Class').
|
||||
rdf('#Resource', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, 'Resource'))).
|
||||
rdf('#Resource', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, 'Ressource'))).
|
||||
rdf('#Resource', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('The most general class')).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, type))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, type))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('Indicates membership of a class')).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#range', '#Class').
|
||||
rdf('#comment', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('#comment', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, comment))).
|
||||
rdf('#comment', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, commentaire))).
|
||||
rdf('#comment', 'http://www.w3.org/2000/01/rdf-schema#domain', '#Resource').
|
||||
rdf('#comment', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('Use this for descriptions')).
|
||||
rdf('#comment', 'http://www.w3.org/2000/01/rdf-schema#range', '#Literal').
|
||||
rdf('#label', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('#label', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('#label', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, label))).
|
||||
rdf('#label', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, label))).
|
||||
rdf('#label', 'http://www.w3.org/2000/01/rdf-schema#domain', '#Resource').
|
||||
rdf('#label', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('Provides a human-readable version of a resource name.')).
|
||||
rdf('#label', 'http://www.w3.org/2000/01/rdf-schema#range', '#Literal').
|
||||
rdf('#Class', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#Class').
|
||||
rdf('#Class', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, 'Class'))).
|
||||
rdf('#Class', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, 'Classe'))).
|
||||
rdf('#Class', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('The concept of Class')).
|
||||
rdf('#Class', 'http://www.w3.org/2000/01/rdf-schema#subClassOf', '#Resource').
|
||||
rdf('#subClassOf', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('#subClassOf', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, subClassOf))).
|
||||
rdf('#subClassOf', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, sousClasseDe))).
|
||||
rdf('#subClassOf', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('Indicates membership of a class')).
|
||||
rdf('#subClassOf', 'http://www.w3.org/2000/01/rdf-schema#range', '#Class').
|
||||
rdf('#subClassOf', 'http://www.w3.org/2000/01/rdf-schema#domain', '#Class').
|
||||
rdf('#subPropertyOf', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('#subPropertyOf', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, subPropertyOf))).
|
||||
rdf('#subPropertyOf', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, sousPropriétéDe))).
|
||||
rdf('#subPropertyOf', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('Indicates specialization of properties')).
|
||||
rdf('#subPropertyOf', 'http://www.w3.org/2000/01/rdf-schema#range', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('#subPropertyOf', 'http://www.w3.org/2000/01/rdf-schema#domain', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('#seeAlso', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('#seeAlso', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, seeAlso))).
|
||||
rdf('#seeAlso', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, voirAussi))).
|
||||
rdf('#seeAlso', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('Indicates a resource that provides information about the subject resource.')).
|
||||
rdf('#seeAlso', 'http://www.w3.org/2000/01/rdf-schema#range', 'http://www.w3.org/2000/01/rdf-schema#Resource').
|
||||
rdf('#seeAlso', 'http://www.w3.org/2000/01/rdf-schema#domain', 'http://www.w3.org/2000/01/rdf-schema#Resource').
|
||||
rdf('#isDefinedBy', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('#isDefinedBy', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('#isDefinedBy', 'http://www.w3.org/2000/01/rdf-schema#subPropertyOf', '#seeAlso').
|
||||
rdf('#isDefinedBy', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, isDefinedBy))).
|
||||
rdf('#isDefinedBy', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, esDéfiniPar))).
|
||||
rdf('#isDefinedBy', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('Indicates a resource containing and defining the subject resource.')).
|
||||
rdf('#isDefinedBy', 'http://www.w3.org/2000/01/rdf-schema#range', 'http://www.w3.org/2000/01/rdf-schema#Resource').
|
||||
rdf('#isDefinedBy', 'http://www.w3.org/2000/01/rdf-schema#domain', 'http://www.w3.org/2000/01/rdf-schema#Resource').
|
||||
rdf('#ConstraintResource', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#Class').
|
||||
rdf('#ConstraintResource', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, 'ConstraintResource'))).
|
||||
rdf('#ConstraintResource', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, 'RessourceContrainte'))).
|
||||
rdf('#ConstraintResource', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', '#Class').
|
||||
rdf('#ConstraintResource', 'http://www.w3.org/2000/01/rdf-schema#subClassOf', '#Resource').
|
||||
rdf('#ConstraintResource', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('Resources used to express RDF Schema constraints.')).
|
||||
rdf('#ConstraintProperty', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#Class').
|
||||
rdf('#ConstraintProperty', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, 'ConstraintProperty'))).
|
||||
rdf('#ConstraintProperty', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, 'PropriétéContrainte'))).
|
||||
rdf('#ConstraintProperty', 'http://www.w3.org/2000/01/rdf-schema#subClassOf', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('#ConstraintProperty', 'http://www.w3.org/2000/01/rdf-schema#subClassOf', '#ConstraintResource').
|
||||
rdf('#ConstraintProperty', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('Properties used to express RDF Schema constraints.')).
|
||||
rdf('#domain', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#ConstraintProperty').
|
||||
rdf('#domain', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, domain))).
|
||||
rdf('#domain', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, domaine))).
|
||||
rdf('#domain', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('This is how we associate a class with\n properties that its instances can have')).
|
||||
rdf('#range', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#ConstraintProperty').
|
||||
rdf('#range', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, range))).
|
||||
rdf('#range', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, étendue))).
|
||||
rdf('#range', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('Properties that can be used in a\n schema to provide constraints')).
|
||||
rdf('#range', 'http://www.w3.org/2000/01/rdf-schema#range', '#Class').
|
||||
rdf('#range', 'http://www.w3.org/2000/01/rdf-schema#domain', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Property', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#Class').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Property', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, 'Property'))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Property', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, 'Propriété'))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Property', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('The concept of a property.')).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Property', 'http://www.w3.org/2000/01/rdf-schema#subClassOf', '#Resource').
|
||||
rdf('#Literal', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#Class').
|
||||
rdf('#Literal', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, 'Literal'))).
|
||||
rdf('#Literal', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, 'Littéral'))).
|
||||
rdf('#Literal', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', '#Class').
|
||||
rdf('#Literal', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('This represents the set of atomic values, eg. textual strings.')).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#Class').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, 'Statement'))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, 'Déclaration'))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement', 'http://www.w3.org/2000/01/rdf-schema#subClassOf', '#Resource').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('This represents the set of reified statements.')).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#subject', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#subject', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, subject))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#subject', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, sujet))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#subject', 'http://www.w3.org/2000/01/rdf-schema#domain', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#subject', 'http://www.w3.org/2000/01/rdf-schema#range', '#Resource').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, predicate))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, prédicat))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate', 'http://www.w3.org/2000/01/rdf-schema#domain', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate', 'http://www.w3.org/2000/01/rdf-schema#range', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#object', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#object', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, object))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#object', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, objet))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#object', 'http://www.w3.org/2000/01/rdf-schema#domain', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement').
|
||||
rdf('#Container', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#Class').
|
||||
rdf('#Container', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, 'Container'))).
|
||||
rdf('#Container', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, 'Enveloppe'))).
|
||||
rdf('#Container', 'http://www.w3.org/2000/01/rdf-schema#subClassOf', '#Resource').
|
||||
rdf('#Container', 'http://www.w3.org/2000/01/rdf-schema#comment', literal('This represents the set Containers.')).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Bag', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#Class').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Bag', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, 'Bag'))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Bag', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, 'Ensemble'))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Bag', 'http://www.w3.org/2000/01/rdf-schema#subClassOf', '#Container').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Seq', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#Class').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Seq', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, 'Sequence'))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Seq', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, 'Séquence'))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Seq', 'http://www.w3.org/2000/01/rdf-schema#subClassOf', '#Container').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Alt', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#Class').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Alt', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, 'Alt'))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Alt', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, 'Choix'))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#Alt', 'http://www.w3.org/2000/01/rdf-schema#subClassOf', '#Container').
|
||||
rdf('#ContainerMembershipProperty', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2000/01/rdf-schema#Class').
|
||||
rdf('#ContainerMembershipProperty', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, 'ContainerMembershipProperty'))).
|
||||
rdf('#ContainerMembershipProperty', 'http://www.w3.org/2000/01/rdf-schema#subClassOf', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#value', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Property').
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#value', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(en, object))).
|
||||
rdf('http://www.w3.org/1999/02/22-rdf-syntax-ns#value', 'http://www.w3.org/2000/01/rdf-schema#label', literal(lang(fr, value))).
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
rdf('#OntologyObjectMetaClass', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/TR/1999/PR-rdf-schema-19990303#Class').
|
||||
rdf('#OntologyObjectMetaClass', 'http://www.w3.org/TR/1999/PR-rdf-schema-19990303#subClassOf', 'http://www.w3.org/TR/1999/PR-rdf-schema-19990303#Class').
|
||||
rdf('#OntologyObjectMetaClass', 'http://smi-web.stanford.edu/projects/protege/protege-rdf/protege-19992012#abstractProperty', literal(concrete)).
|
||||
rdf('#identifier', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/TR/1999/PR-rdf-schema-19990303#Property').
|
||||
rdf('__Description1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/rdfutil#facetResource').
|
||||
rdf('__Description1', 'http://www.w3.org/rdfutil#domain', '#OntologyObjectMetaClass').
|
||||
rdf('__Description1', 'http://www.w3.org/rdfutil#range', 'http://www.w3.org/TR/xmlschema-2/#string').
|
||||
rdf('__Description1', 'http://www.w3.org/rdfutil#cardinality', literal('1')).
|
||||
rdf('#identifier', 'http://www.w3.org/rdfutil#facets', '__Description1').
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
rdf('http://www.w3.org/Home/Lassila', 'http://description.org/schema/Creator', literal('Ora Lassila')).
|
||||
rdf('#statement1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement').
|
||||
rdf('#statement1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#subject', 'http://www.w3.org/Home/Lassila').
|
||||
rdf('#statement1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate', 'http://description.org/schema/Creator').
|
||||
rdf('#statement1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#object', literal('Ora Lassila')).
|
||||
rdf('#statement1', 'http://description.org/schema/believedBy', literal('Stefan Decker')).
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
rdf('__Description1', rdf:type, 'http://www.mytypes.org/schema/Bicycle').
|
||||
rdf('__Description1', wheels, literal('2')).
|
||||
rdf('__Description2', rdf:type, 'http://www.mytypes.org/schema/Bicycle').
|
||||
rdf('__Description2', 'http://www.mytypes.org/schema/':wheels, literal('2')).
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
rdf('#JohnWeight', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#value', literal('200')).
|
||||
rdf('#JohnWeight', 'http://www.nist.gov/units/units', 'http://www.nist.gov/units/Pounds').
|
||||
rdf('John_Smith', 'http://www.nist.gov/units/weight', '#JohnWeight').
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
rdf('John_Smith', a1, literal('John')).
|
||||
rdf('__Description1', v, literal('200')).
|
||||
rdf('__Description1', t, literal(pounds)).
|
||||
rdf('John_Smith', a1, '__Description1').
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
rdf('__Description1', name, literal('Jan Wielemaker')).
|
||||
rdf('__Description1', works_at, literal('SWI')).
|
||||
rdf('http://www.swi.psy.uva.nl/projects/SWI-Prolog/', 'http://description.org/schema/Creator', '__Description1').
|
||||
rdf('#JW', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement').
|
||||
rdf('#JW', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#subject', 'http://www.swi.psy.uva.nl/projects/SWI-Prolog/').
|
||||
rdf('#JW', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate', 'http://description.org/schema/Creator').
|
||||
rdf('#JW', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#object', '__Description1').
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
rdf('__Bag1', rdf:type, rdf:'Bag').
|
||||
rdf('__Bag1', rdf:'_1', literal('Jan Wielemaker')).
|
||||
rdf('__Bag1', rdf:'_2', literal('Anjo Anjewierden')).
|
||||
rdf('http://www.swi.psy.uva.nl/projects/xpce/', 'http://description.org/schema/':'Creator', '__Bag1').
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
rdf('__Bag1', rdf:type, rdf:'Bag').
|
||||
rdf('__Description1', name, literal('Jan Wielemaker')).
|
||||
rdf('__Description1', employed_at, literal('SWI')).
|
||||
rdf('__Bag1', rdf:'_1', '__Description1').
|
||||
rdf('http://www.swi.psy.uva.nl/projects/xpce/', 'http://description.org/schema/':'Creator', '__Bag1').
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
rdf('#weight_001', 'http://www.nist.gov/RDFschema/Units', 'http://www.nist.gov/units/pounds').
|
||||
rdf('#weight_001', value, literal('200')).
|
||||
rdf('John_Smith', 'http://www.nist.gov/RDFschema/Weight', '#weight_001').
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
rdf('__Description1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2002/07/owl#Restriction').
|
||||
rdf('http://www.w3.org/2002/03owlt/I5.8/inconsistent001#p', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.w3.org/2002/07/owl#DatatypeProperty').
|
||||
rdf('http://www.w3.org/2002/03owlt/I5.8/inconsistent001#p', 'http://www.w3.org/2000/01/rdf-schema#range', 'http://www.w3.org/2001/XMLSchema#byte').
|
||||
rdf('__Description1', 'http://www.w3.org/2002/07/owl#onProperty', 'http://www.w3.org/2002/03owlt/I5.8/inconsistent001#p').
|
||||
rdf('__Description1', 'http://www.w3.org/2002/07/owl#cardinality', literal(type('http://www.w3.org/2001/XMLSchema#nonNegativeInteger', '257'))).
|
||||
rdf('http://www.w3.org/2002/03owlt/I5.8/inconsistent001#john', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', '__Description1').
|
||||
|
|
@ -0,0 +1,2 @@
|
|||
rdf('#id1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.swi.psy.uva.nl/test#test').
|
||||
rdf('#id1', 'http://www.swi.psy.uva.nl/test#a', literal(type('http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral', [element(b, [], [strong])]))).
|
||||
|
|
@ -0,0 +1,2 @@
|
|||
rdf('#id1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type', 'http://www.swi.psy.uva.nl/test#test').
|
||||
rdf('#id1', 'http://www.swi.psy.uva.nl/test#int', literal(type('http://www.w3.org/2000/10/XMLSchema#int', '42'))).
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
<?xml version='1.0'?>
|
||||
|
||||
<!-- Example 1 from REC-rdf-syntax -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="http://www.w3.org/Home/Lassila">
|
||||
<s:Creator>Ora Lassila</s:Creator>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
<?xml version='1.0'?>
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="http://www.swi.psy.uva.nl/projects/SWI-Prolog/"
|
||||
s:Creator="Jan Wielemaker"/>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating namespaces -->
|
||||
|
||||
<RDF
|
||||
xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<Description about="http://www.w3.org/Home/Lassila">
|
||||
<s:Creator>Ora Lassila</s:Creator>
|
||||
</Description>
|
||||
</RDF>
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating namespaces -->
|
||||
|
||||
<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
|
||||
<Description about="http://www.w3.org/Home/Lassila">
|
||||
<Creator xmlns="http://description.org/schema/">Ora Lassila</Creator>
|
||||
</Description>
|
||||
</RDF>
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="http://www.w3.org">
|
||||
<s:Publisher>World Wide Web Consortium</s:Publisher>
|
||||
<s:Title>W3C Home Page</s:Title>
|
||||
<s:Date>1998-10-03T02:27</s:Date>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="http://www.w3.org"
|
||||
s:Publisher="World Wide Web Consortium"
|
||||
s:Title="W3C Home Page"
|
||||
s:Date="1998-10-03T02:27"/>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="http://www.w3.org/Home/Lassila">
|
||||
<s:Creator rdf:resource="http://www.w3.org/staffId/85740"/>
|
||||
</rdf:Description>
|
||||
|
||||
<rdf:Description about="http://www.w3.org/staffId/85740">
|
||||
<s:Name>Ora Lassila</s:Name>
|
||||
<s:Email>lassila@w3.org</s:Email>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="http://www.w3.org/Home/Lassila">
|
||||
<s:Creator>
|
||||
<rdf:Description about="http://www.w3.org/staffId/85740">
|
||||
<s:Name>Ora Lassila</s:Name>
|
||||
<s:Email>lassila@w3.org</s:Email>
|
||||
</rdf:Description>
|
||||
</s:Creator>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="http://www.w3.org/Home/Lassila">
|
||||
<s:Creator rdf:resource="http://www.w3.org/staffId/85740"
|
||||
s:Name="Ora Lassila"
|
||||
s:Email="lassila@w3.org"/>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/"
|
||||
xmlns:v="http://description.org/view/">
|
||||
<rdf:Description about="http://www.w3.org/Home/Lassila">
|
||||
<s:Creator>
|
||||
<rdf:Description about="http://www.w3.org/staffId/85740">
|
||||
<rdf:type resource="http://description.org/schema/Person"/>
|
||||
<v:Name>Ora Lassila</v:Name>
|
||||
<v:Email>lassila@w3.org</v:Email>
|
||||
</rdf:Description>
|
||||
</s:Creator>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
<?xml version='1.0'?>
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="SWI-prolog">
|
||||
<s:Creator rdf:resource="JW" sex="male" employed_at="SWI"/>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/"
|
||||
xmlns:v="http://description.org/view/">
|
||||
<rdf:Description about="http://www.w3.org/Home/Lassila">
|
||||
<s:Creator>
|
||||
<!-- REC-rdf-syntax just says `about' -->
|
||||
<s:Person rdf:about="http://www.w3.org/staffId/85740">
|
||||
<v:Name>Ora Lassila</v:Name>
|
||||
<v:Email>lassila@w3.org</v:Email>
|
||||
</s:Person>
|
||||
</s:Creator>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/"
|
||||
xmlns:v="http://description.org/view/">
|
||||
<rdf:Description about="http://mycollege.edu/courses/6.001">
|
||||
<s:students>
|
||||
<rdf:Bag>
|
||||
<rdf:li resource="http://mycollege.edu/students/Amy"/>
|
||||
<rdf:li resource="http://mycollege.edu/students/Tim"/>
|
||||
<rdf:li resource="http://mycollege.edu/students/John"/>
|
||||
<rdf:li resource="http://mycollege.edu/students/Mary"/>
|
||||
<rdf:li resource="http://mycollege.edu/students/Sue"/>
|
||||
</rdf:Bag>
|
||||
</s:students>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/"
|
||||
xmlns:v="http://description.org/view/">
|
||||
<rdf:Description about="http://x.org/packages/X11">
|
||||
<s:DistributionSite>
|
||||
<rdf:Alt>
|
||||
<rdf:li resource="ftp://ftp.x.org"/>
|
||||
<rdf:li resource="ftp://ftp.cs.purdue.edu"/>
|
||||
<rdf:li resource="ftp://ftp.eu.net"/>
|
||||
</rdf:Alt>
|
||||
</s:DistributionSite>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:a="http://description.org/schema/">
|
||||
<rdf:Description>
|
||||
<rdf:subject resource="http://www.w3.org/Home/Lassila" />
|
||||
<rdf:predicate resource="http://description.org/schema/Creator" />
|
||||
<rdf:object>Ora Lassila</rdf:object>
|
||||
<rdf:type resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement" />
|
||||
<a:attributedTo>Ralph Swick</a:attributedTo>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
|
||||
<Seq ID="JSPapersByDate">
|
||||
<li resource="http://www.dogworld.com/Aug96.doc"/>
|
||||
<li resource="http://www.webnuts.net/Jan97.html"/>
|
||||
<li resource="http://www.carchat.com/Sept97.html"/>
|
||||
</Seq>
|
||||
<Seq ID="JSPapersBySubj">
|
||||
<li resource="http://www.carchat.com/Sept97.html"/>
|
||||
<li resource="http://www.dogworld.com/Aug96.doc"/>
|
||||
<li resource="http://www.webnuts.net/Jan97.html"/>
|
||||
</Seq>
|
||||
</RDF>
|
||||
|
|
@ -0,0 +1,30 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:dc="http://purl.org/metadata/dublin_core#">
|
||||
<rdf:Description about="http://www.foo.com/cool.html">
|
||||
<dc:Creator>
|
||||
<rdf:Seq ID="CreatorsAlphabeticalBySurname">
|
||||
<rdf:li>Mary Andrew</rdf:li>
|
||||
<rdf:li>Jacky Crystal</rdf:li>
|
||||
</rdf:Seq>
|
||||
</dc:Creator>
|
||||
|
||||
<dc:Identifier>
|
||||
<rdf:Bag ID="MirroredSites">
|
||||
<rdf:li rdf:resource="http://www.foo.com.au/cool.html"/>
|
||||
<rdf:li rdf:resource="http://www.foo.com.it/cool.html"/>
|
||||
</rdf:Bag>
|
||||
</dc:Identifier>
|
||||
|
||||
<dc:Title>
|
||||
<rdf:Alt>
|
||||
<rdf:li xml:lang="en">The Coolest Web Page</rdf:li>
|
||||
<rdf:li xml:lang="it">Il Pagio di Web Fuba</rdf:li>
|
||||
</rdf:Alt>
|
||||
</dc:Title>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<RDF
|
||||
xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:dc="http://purl.org/metadata/dublin_core#"
|
||||
xmlns:l="http://mycorp.com/schemas/my-schema#">
|
||||
<Description about="http://www.webnuts.net/Jan97.html">
|
||||
<dc:Subject
|
||||
rdf:value="020 - Library Science"
|
||||
l:Classification="Dewey Decimal Code"/>
|
||||
</Description>
|
||||
</RDF>
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<RDF
|
||||
xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:n="http://www.nist.gov/units/">
|
||||
<Description about="John_Smith">
|
||||
<n:weight rdf:parseType="Resource">
|
||||
<rdf:value>200</rdf:value>
|
||||
<n:units rdf:resource="http://www.nist.gov/units/Pounds"/>
|
||||
</n:weight>
|
||||
</Description>
|
||||
</RDF>
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
<?xml version='1.0'?>
|
||||
|
||||
<!-- Test inline description -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="http://www.swi.psy.uva.nl/projects/SWI-Prolog/">
|
||||
<s:Creator>
|
||||
<rdf:Description ID="JW">
|
||||
<s:name>Jan Wielemaker</s:name>
|
||||
<s:works_at>SWI</s:works_at>
|
||||
</rdf:Description>
|
||||
</s:Creator>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:dc="http://purl.org/metadata/dublin_core#">
|
||||
<rdf:Description about="http://www.dlib.org">
|
||||
<dc:Title>D-Lib Program - Research in Digital Libraries</dc:Title>
|
||||
<dc:Description>The D-Lib program supports the community of people
|
||||
with research interests in digital libraries and electronic
|
||||
publishing.</dc:Description>
|
||||
<dc:Publisher>Corporation For National Research Initiatives</dc:Publisher>
|
||||
<dc:Date>1995-01-07</dc:Date>
|
||||
<dc:Subject>
|
||||
<rdf:Bag>
|
||||
<rdf:li>Research; statistical methods</rdf:li>
|
||||
<rdf:li>Education, research, related topics</rdf:li>
|
||||
<rdf:li>Library use Studies</rdf:li>
|
||||
</rdf:Bag>
|
||||
</dc:Subject>
|
||||
<dc:Type>World Wide Web Home Page</dc:Type>
|
||||
<dc:Format>text/html</dc:Format>
|
||||
<dc:Language>en</dc:Language>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,36 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:dc="http://purl.org/metadata/dublin_core#"
|
||||
xmlns:dcq="http://purl.org/metadata/dublin_core_qualifiers#">
|
||||
<rdf:Description about="http://www.dlib.org/dlib/may98/05contents.html">
|
||||
<dc:Title>DLIB Magazine - The Magazine for Digital Library Research
|
||||
- May 1998</dc:Title>
|
||||
<dc:Description>D-LIB magazine is a monthly compilation of
|
||||
contributed stories, commentary, and briefings.</dc:Description>
|
||||
<dc:Contributor rdf:parseType="Resource">
|
||||
<dcq:AgentType
|
||||
rdf:resource="http://purl.org/metadata/dublin_core_qualifiers#Editor"/>
|
||||
<rdf:value>Amy Friedlander</rdf:value>
|
||||
</dc:Contributor>
|
||||
<dc:Publisher>Corporation for National Research Initiatives</dc:Publisher>
|
||||
<dc:Date>1998-01-05</dc:Date>
|
||||
<dc:Type>electronic journal</dc:Type>
|
||||
<dc:Subject>
|
||||
<rdf:Bag>
|
||||
<rdf:li>library use studies</rdf:li>
|
||||
<rdf:li>magazines and newspapers</rdf:li>
|
||||
</rdf:Bag>
|
||||
</dc:Subject>
|
||||
<dc:Format>text/html</dc:Format>
|
||||
<dc:Identifier>urn:issn:1082-9873</dc:Identifier>
|
||||
<dc:Relation rdf:parseType="Resource">
|
||||
<dcq:RelationType
|
||||
rdf:resource="http://purl.org/metadata/dublin_core_qualifiers#IsPartOf"/>
|
||||
<rdf:value resource="http://www.dlib.org"/>
|
||||
</dc:Relation>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,43 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<rdf:RDF
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:dc="http://purl.org/metadata/dublin_core#"
|
||||
xmlns:dcq="http://purl.org/metadata/dublin_core_qualifiers#">
|
||||
<rdf:Description about=
|
||||
"http://www.dlib.org/dlib/may98/miller/05miller.html">
|
||||
<dc:Title>An Introduction to the Resource Description Framework</dc:Title>
|
||||
<dc:Creator>Eric J. Miller</dc:Creator>
|
||||
<dc:Description>The Resource Description Framework (RDF) is an
|
||||
infrastructure that enables the encoding, exchange and reuse of
|
||||
structured metadata. rdf is an application of xml that imposes needed
|
||||
structural constraints to provide unambiguous methods of expressing
|
||||
semantics. rdf additionally provides a means for publishing both
|
||||
human-readable and machine-processable vocabularies designed to
|
||||
encourage the reuse and extension of metadata semantics among
|
||||
disparate information communities. the structural constraints rdf
|
||||
imposes to support the consistent encoding and exchange of
|
||||
standardized metadata provides for the interchangeability of separate
|
||||
packages of metadata defined by different resource description
|
||||
communities. </dc:Description>
|
||||
<dc:Publisher>Corporation for National Research Initiatives</dc:Publisher>
|
||||
<dc:Subject>
|
||||
<rdf:Bag>
|
||||
<rdf:li>machine-readable catalog record formats</rdf:li>
|
||||
<rdf:li>applications of computer file organization and
|
||||
access methods</rdf:li>
|
||||
</rdf:Bag>
|
||||
</dc:Subject>
|
||||
<dc:Rights>Copyright @ 1998 Eric Miller</dc:Rights>
|
||||
<dc:Type>Electronic Document</dc:Type>
|
||||
<dc:Format>text/html</dc:Format>
|
||||
<dc:Language>en</dc:Language>
|
||||
<dc:Relation rdf:parseType="Resource">
|
||||
<dcq:RelationType
|
||||
rdf:resource="http://purl.org/metadata/dublin_core_qualifiers#IsPartOf"/>
|
||||
<rdf:value resource="http://www.dlib.org/dlib/may98/05contents.html"/>
|
||||
</dc:Relation>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,18 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating literal value -->
|
||||
|
||||
<rdf:RDF
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
|
||||
<rdf:Description
|
||||
xmlns:dc="http://purl.org/metadata/dublin_core#"
|
||||
xmlns="http://www.w3.org/TR/REC-mathml"
|
||||
rdf:about="http://mycorp.com/papers/NobelPaper1">
|
||||
|
||||
<dc:Title rdf:parseType="Literal">
|
||||
Ramifications of <apply><power/><apply><plus/><ci>a</ci><ci>b</ci></apply>
|
||||
<cn>2</cn></apply> to World Peace
|
||||
</dc:Title>
|
||||
<dc:Creator>David Hume</dc:Creator>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating literal value -->
|
||||
|
||||
<rdf:RDF
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:dc="http://purl.org/metadata/dublin_core#">
|
||||
<rdf:Description about="http://www.foo.com/cool.html">
|
||||
<dc:Creator>
|
||||
<rdf:Seq ID="CreatorsAlphabeticalBySurname"
|
||||
rdf:_1="Mary Andrew"
|
||||
rdf:_2="Jacky Crystal"/>
|
||||
</dc:Creator>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
<?xml version='1.0'?>
|
||||
|
||||
<!-- Test inline description -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="http://www.swi.psy.uva.nl/projects/SWI-Prolog/">
|
||||
<s:Creator rdf:ID="pl-creator">
|
||||
<rdf:Description rdf:about="JW">
|
||||
<s:name>Jan Wielemaker</s:name>
|
||||
<s:works_at>SWI</s:works_at>
|
||||
</rdf:Description>
|
||||
</s:Creator>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,190 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
|
||||
<!-- Definition of RDF-schema in itself -->
|
||||
<!-- From http://www.w3.org/TR/rdf-schema/ -->
|
||||
|
||||
<rdf:RDF
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#">
|
||||
|
||||
<rdfs:Class rdf:ID="Resource">
|
||||
<rdfs:label xml:lang="en">Resource</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">Ressource</rdfs:label>
|
||||
<rdfs:comment>The most general class</rdfs:comment>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdf:Property about="http://www.w3.org/1999/02/22-rdf-syntax-ns#type">
|
||||
<rdfs:label xml:lang="en">type</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">type</rdfs:label>
|
||||
<rdfs:comment>Indicates membership of a class</rdfs:comment>
|
||||
<rdfs:range rdf:resource="#Class"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property ID="comment">
|
||||
<rdfs:label xml:lang="en">comment</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">commentaire</rdfs:label>
|
||||
<rdfs:domain rdf:resource="#Resource"/>
|
||||
<rdfs:comment>Use this for descriptions</rdfs:comment>
|
||||
<rdfs:range rdf:resource="#Literal"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property ID="label">
|
||||
<rdf:type resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
|
||||
<rdfs:label xml:lang="en">label</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">label</rdfs:label>
|
||||
<rdfs:domain rdf:resource="#Resource"/>
|
||||
<rdfs:comment>Provides a human-readable version of a resource name.</rdfs:comment>
|
||||
<rdfs:range rdf:resource="#Literal"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdfs:Class rdf:ID="Class">
|
||||
<rdfs:label xml:lang="en">Class</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">Classe</rdfs:label>
|
||||
<rdfs:comment>The concept of Class</rdfs:comment>
|
||||
<rdfs:subClassOf rdf:resource="#Resource"/>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdf:Property ID="subClassOf">
|
||||
<rdfs:label xml:lang="en">subClassOf</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">sousClasseDe</rdfs:label>
|
||||
<rdfs:comment>Indicates membership of a class</rdfs:comment>
|
||||
<rdfs:range rdf:resource="#Class"/>
|
||||
<rdfs:domain rdf:resource="#Class"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property ID="subPropertyOf">
|
||||
<rdfs:label xml:lang="en">subPropertyOf</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">sousPropriétéDe</rdfs:label>
|
||||
<rdfs:comment>Indicates specialization of properties</rdfs:comment>
|
||||
<rdfs:range rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
|
||||
<rdfs:domain rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property ID="seeAlso">
|
||||
<rdfs:label xml:lang="en">seeAlso</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">voirAussi</rdfs:label>
|
||||
<rdfs:comment>Indicates a resource that provides information about the subject resource.</rdfs:comment>
|
||||
<rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
||||
<rdfs:domain rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property ID="isDefinedBy">
|
||||
<rdf:type resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
|
||||
<rdfs:subPropertyOf rdf:resource="#seeAlso"/>
|
||||
<rdfs:label xml:lang="en">isDefinedBy</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">esDéfiniPar</rdfs:label>
|
||||
<rdfs:comment>Indicates a resource containing and defining the subject resource.</rdfs:comment>
|
||||
<rdfs:range rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
||||
<rdfs:domain rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdfs:Class rdf:ID="ConstraintResource">
|
||||
<rdfs:label xml:lang="en">ConstraintResource</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">RessourceContrainte</rdfs:label>
|
||||
<rdf:type resource="#Class"/>
|
||||
<rdfs:subClassOf rdf:resource="#Resource"/>
|
||||
<rdfs:comment>Resources used to express RDF Schema constraints.</rdfs:comment>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:Class rdf:ID="ConstraintProperty">
|
||||
<rdfs:label xml:lang="en">ConstraintProperty</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">PropriétéContrainte</rdfs:label>
|
||||
<rdfs:subClassOf rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
|
||||
<rdfs:subClassOf rdf:resource="#ConstraintResource"/>
|
||||
<rdfs:comment>Properties used to express RDF Schema constraints.</rdfs:comment>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:ConstraintProperty rdf:ID="domain">
|
||||
<rdfs:label xml:lang="en">domain</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">domaine</rdfs:label>
|
||||
<rdfs:comment>This is how we associate a class with
|
||||
properties that its instances can have</rdfs:comment>
|
||||
</rdfs:ConstraintProperty>
|
||||
|
||||
<rdfs:ConstraintProperty rdf:ID="range">
|
||||
<rdfs:label xml:lang="en">range</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">étendue</rdfs:label>
|
||||
<rdfs:comment>Properties that can be used in a
|
||||
schema to provide constraints</rdfs:comment>
|
||||
<rdfs:range rdf:resource="#Class"/>
|
||||
<rdfs:domain rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
|
||||
</rdfs:ConstraintProperty>
|
||||
|
||||
<rdfs:Class rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property">
|
||||
<rdfs:label xml:lang="en">Property</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">Propriété</rdfs:label>
|
||||
<rdfs:comment>The concept of a property.</rdfs:comment>
|
||||
<rdfs:subClassOf rdf:resource="#Resource"/>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:Class rdf:ID="Literal">
|
||||
<rdfs:label xml:lang="en">Literal</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">Littéral</rdfs:label>
|
||||
<rdf:type resource="#Class"/>
|
||||
<rdfs:comment>This represents the set of atomic values, eg. textual strings.</rdfs:comment>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:Class rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement">
|
||||
<rdfs:label xml:lang="en">Statement</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">Déclaration</rdfs:label>
|
||||
<rdfs:subClassOf rdf:resource="#Resource"/>
|
||||
<rdfs:comment>This represents the set of reified statements.</rdfs:comment>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdf:Property about="http://www.w3.org/1999/02/22-rdf-syntax-ns#subject">
|
||||
<rdfs:label xml:lang="en">subject</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">sujet</rdfs:label>
|
||||
<rdfs:domain rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement"/>
|
||||
<rdfs:range rdf:resource="#Resource"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property about="http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate">
|
||||
<rdfs:label xml:lang="en">predicate</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">prédicat</rdfs:label>
|
||||
<rdf:type resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
|
||||
<rdfs:domain rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement"/>
|
||||
<rdfs:range rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdf:Property about="http://www.w3.org/1999/02/22-rdf-syntax-ns#object">
|
||||
<rdfs:label xml:lang="en">object</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">objet</rdfs:label>
|
||||
<rdfs:domain rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement"/>
|
||||
</rdf:Property>
|
||||
|
||||
<rdfs:Class rdf:ID="Container">
|
||||
<rdfs:label xml:lang="en">Container</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">Enveloppe</rdfs:label>
|
||||
<rdfs:subClassOf rdf:resource="#Resource"/>
|
||||
<rdfs:comment>This represents the set Containers.</rdfs:comment>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:Class rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#Bag">
|
||||
<rdfs:label xml:lang="en">Bag</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">Ensemble</rdfs:label>
|
||||
<rdfs:subClassOf rdf:resource="#Container"/>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:Class rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#Seq">
|
||||
<rdfs:label xml:lang="en">Sequence</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">Séquence</rdfs:label>
|
||||
<rdfs:subClassOf rdf:resource="#Container"/>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:Class rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#Alt">
|
||||
<rdfs:label xml:lang="en">Alt</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">Choix</rdfs:label>
|
||||
<rdfs:subClassOf rdf:resource="#Container"/>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdfs:Class rdf:ID="ContainerMembershipProperty">
|
||||
<rdfs:label xml:lang="en">ContainerMembershipProperty</rdfs:label>
|
||||
<rdfs:subClassOf rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
|
||||
</rdfs:Class>
|
||||
|
||||
<rdf:Property rdf:about="http://www.w3.org/1999/02/22-rdf-syntax-ns#value">
|
||||
<rdfs:label xml:lang="en">object</rdfs:label>
|
||||
<rdfs:label xml:lang="fr">value</rdfs:label>
|
||||
</rdf:Property>
|
||||
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,25 @@
|
|||
<?xml version='1.0' encoding='ISO-8859-1'?>
|
||||
<!-- Version Wed Apr 12 12:09:19 CEST 2000 -->
|
||||
<rdf:RDF
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:rdfs="http://www.w3.org/TR/1999/PR-rdf-schema-19990303#"
|
||||
xmlns:rdfutil="http://www.w3.org/rdfutil#"
|
||||
xmlns:protege="http://smi-web.stanford.edu/projects/protege/protege-rdf/protege-19992012#">
|
||||
|
||||
<rdf:Description rdf:ID="OntologyObjectMetaClass">
|
||||
<rdf:type rdf:resource="http://www.w3.org/TR/1999/PR-rdf-schema-19990303#Class"/>
|
||||
<rdfs:subClassOf rdf:resource="http://www.w3.org/TR/1999/PR-rdf-schema-19990303#Class"/>
|
||||
<protege:abstractProperty>concrete</protege:abstractProperty>
|
||||
</rdf:Description>
|
||||
|
||||
<rdf:Description rdf:ID="identifier">
|
||||
<rdf:type rdf:resource="http://www.w3.org/TR/1999/PR-rdf-schema-19990303#Property"/>
|
||||
<rdfutil:facets>
|
||||
<rdfutil:facetResource>
|
||||
<rdfutil:domain rdf:resource="#OntologyObjectMetaClass"/>
|
||||
<rdfutil:range rdf:resource="http://www.w3.org/TR/xmlschema-2/#string"/>
|
||||
<rdfutil:cardinality>1</rdfutil:cardinality>
|
||||
</rdfutil:facetResource>
|
||||
</rdfutil:facets>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
<?xml version='1.0'?>
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="http://www.w3.org/Home/Lassila">
|
||||
<s:Creator rdf:ID="statement1">Ora Lassila</s:Creator>
|
||||
</rdf:Description>
|
||||
|
||||
<!-- The statement saying that i believe the above statement -->
|
||||
|
||||
<rdf:Description about="#statement1">
|
||||
<s:believedBy>Stefan Decker</s:believedBy>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
<?xml version='1.0'?>
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:my="http://www.mytypes.org/schema/">
|
||||
<my:Bicycle wheels="2"/>
|
||||
|
||||
<rdf:Description type="http://www.mytypes.org/schema/Bicycle">
|
||||
<my:wheels>2</my:wheels>
|
||||
</rdf:Description>
|
||||
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Example from REC-rdf-syntax, demonstrating abbrevation -->
|
||||
|
||||
<RDF
|
||||
xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:n="http://www.nist.gov/units/">
|
||||
<Description about="John_Smith">
|
||||
<n:weight rdf:ID="JohnWeight" rdf:parseType="Resource">
|
||||
<rdf:value>200</rdf:value>
|
||||
<n:units rdf:resource="http://www.nist.gov/units/Pounds"/>
|
||||
</n:weight>
|
||||
</Description>
|
||||
</RDF>
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Test space handling for mixed literal/compound -->
|
||||
|
||||
<rdf:RDF
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
|
||||
<rdf:Description about="John_Smith">
|
||||
<a1>John</a1>
|
||||
<a1>
|
||||
<rdf:Description>
|
||||
<v>200</v>
|
||||
<t>pounds</t>
|
||||
</rdf:Description>
|
||||
</a1>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
<?xml version='1.0'?>
|
||||
|
||||
<!-- Test inline description -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="http://www.swi.psy.uva.nl/projects/SWI-Prolog/">
|
||||
<s:Creator rdf:ID="JW">
|
||||
<rdf:Description>
|
||||
<name>Jan Wielemaker</name>
|
||||
<works_at>SWI</works_at>
|
||||
</rdf:Description>
|
||||
</s:Creator>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
<?xml version='1.0'?>
|
||||
|
||||
<!-- Test attribute-bag -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="http://www.swi.psy.uva.nl/projects/xpce/">
|
||||
<s:Creator>
|
||||
<rdf:Bag>
|
||||
<rdf:li>Jan Wielemaker</rdf:li>
|
||||
<rdf:li>Anjo Anjewierden</rdf:li>
|
||||
</rdf:Bag>
|
||||
</s:Creator>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
<?xml version='1.0'?>
|
||||
|
||||
<!-- Test attribute-bag -->
|
||||
|
||||
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:s="http://description.org/schema/">
|
||||
<rdf:Description about="http://www.swi.psy.uva.nl/projects/xpce/">
|
||||
<s:Creator>
|
||||
<rdf:Bag>
|
||||
<rdf:li parseType="Resource">
|
||||
<name>Jan Wielemaker</name>
|
||||
<employed_at>SWI</employed_at>
|
||||
</rdf:li>
|
||||
</rdf:Bag>
|
||||
</s:Creator>
|
||||
</rdf:Description>
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
<?xml version="1.0"?>
|
||||
|
||||
<!-- Copied from Pro Solutions RDF parser examples -->
|
||||
|
||||
<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:NIST="http://www.nist.gov/RDFschema/">
|
||||
<Description about="John_Smith">
|
||||
<NIST:Weight>
|
||||
<Description ID="weight_001">
|
||||
<NIST:Units rdf:resource="http://www.nist.gov/units/pounds"/>
|
||||
<value xmlns="">200</value>
|
||||
</Description>
|
||||
</NIST:Weight>
|
||||
</Description>
|
||||
</RDF>
|
||||
|
|
@ -0,0 +1,22 @@
|
|||
<rdf:RDF
|
||||
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||||
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
|
||||
xmlns:owl="http://www.w3.org/2002/07/owl#"
|
||||
xmlns:first="http://www.w3.org/2002/03owlt/I5.8/inconsistent001#"
|
||||
xml:base="http://www.w3.org/2002/03owlt/I5.8/inconsistent001" >
|
||||
<rdf:Description rdf:ID="john">
|
||||
<rdf:type>
|
||||
<owl:Restriction>
|
||||
<owl:onProperty>
|
||||
<owl:DatatypeProperty rdf:ID="p">
|
||||
<rdfs:range rdf:resource=
|
||||
"http://www.w3.org/2001/XMLSchema#byte" />
|
||||
</owl:DatatypeProperty>
|
||||
</owl:onProperty>
|
||||
<owl:cardinality
|
||||
rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">257</owl:cardinality>
|
||||
</owl:Restriction>
|
||||
</rdf:type>
|
||||
</rdf:Description>
|
||||
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
|
||||
<!DOCTYPE rdf [
|
||||
<!ENTITY rdf "http://www.w3.org/1999/02/22-rdf-syntax-ns#">
|
||||
<!ENTITY xsd "http://www.w3.org/2000/10/XMLSchema#">
|
||||
<!ENTITY t "http://www.swi.psy.uva.nl/test#">
|
||||
]>
|
||||
|
||||
<rdf:RDF
|
||||
xmlns:rdf ="&rdf;"
|
||||
xmlns:xsd ="&xsd;"
|
||||
xmlns:t="&t;"
|
||||
>
|
||||
|
||||
<t:test rdf:ID="id1">
|
||||
<t:a rdf:parseType="Literal"><b>strong</b></t:a>
|
||||
</t:test>
|
||||
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
|
||||
<!DOCTYPE rdf [
|
||||
<!ENTITY rdf "http://www.w3.org/1999/02/22-rdf-syntax-ns#">
|
||||
<!ENTITY xsd "http://www.w3.org/2000/10/XMLSchema#">
|
||||
<!ENTITY t "http://www.swi.psy.uva.nl/test#">
|
||||
]>
|
||||
|
||||
<rdf:RDF
|
||||
xmlns:rdf ="&rdf;"
|
||||
xmlns:xsd ="&xsd;"
|
||||
xmlns:t="&t;"
|
||||
>
|
||||
|
||||
<t:test rdf:ID="id1">
|
||||
<t:int rdf:datatype="&xsd;int">42</t:int>
|
||||
</t:test>
|
||||
|
||||
</rdf:RDF>
|
||||
|
|
@ -0,0 +1,317 @@
|
|||
/* Part of SWI-Prolog
|
||||
|
||||
Author: Jan Wielemaker
|
||||
E-mail: J.Wielemaker@uva.nl
|
||||
WWW: http://www.swi-prolog.org
|
||||
Copyright (C): 2010, University of Amsterdam
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
As a special exception, if you link this library with other files,
|
||||
compiled with a Free Software compiler, to produce an executable, this
|
||||
library does not by itself cause the resulting executable to be covered
|
||||
by the GNU General Public License. This exception does not however
|
||||
invalidate any other reasons why the executable file might be covered by
|
||||
the GNU General Public License.
|
||||
*/
|
||||
|
||||
:- module(test_rdf,
|
||||
[ suite/1, % +Test-number
|
||||
test_dir/1, % +Directory
|
||||
test_file/1, % +File
|
||||
time_file/1, % +File
|
||||
passed/1, % +Test-numberOrFile
|
||||
test_rdf/0, % run whole suite
|
||||
show_ok/1 % +Test
|
||||
]).
|
||||
|
||||
:- multifile
|
||||
user:file_search_path/2.
|
||||
|
||||
user:file_search_path(library, .).
|
||||
user:file_search_path(library, '../sgml').
|
||||
user:file_search_path(library, '../clib').
|
||||
user:file_search_path(library, '..').
|
||||
user:file_search_path(foreign, '../sgml').
|
||||
user:file_search_path(foreign, '../clib').
|
||||
user:file_search_path(foreign, '../semweb').
|
||||
|
||||
:- use_module(library(sgml)).
|
||||
:- use_module(library(semweb/rdf_compare)).
|
||||
:- use_module(library(rdf_parser)).
|
||||
:- use_module(library(rdf_triple)).
|
||||
:- use_module(library(rdf)).
|
||||
:- use_module(pretty_print).
|
||||
|
||||
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
Test file for the SWI-Prolog RDF parser. Toplevel predicates:
|
||||
|
||||
# test/0
|
||||
Run all tests from the `suite' directory and validate the
|
||||
the result if the correct result is stored in a .ok file.
|
||||
|
||||
# suite(N)
|
||||
Run test on suite/t<N>.rdf, showing RDF, intermediate
|
||||
representation and triples on the console.
|
||||
|
||||
# passed(N)
|
||||
Parse suite/t<N>.rdf and save the result in suite/t<N>.ok
|
||||
|
||||
The intention is to write tests, use suite/1 to make sure they are
|
||||
parsed correctly and then run passed/1 to save the correct answer, so
|
||||
running test/0 can validate all results.
|
||||
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
|
||||
|
||||
suite(N) :-
|
||||
atomic_list_concat(['suite/t', N, '.rdf'], File),
|
||||
test_file(File).
|
||||
|
||||
test_file(File) :-
|
||||
rdf_reset_ids,
|
||||
format('************* Test ~w ***~n', [File]),
|
||||
cat(File),
|
||||
load_structure(File,
|
||||
[ RDFElement ],
|
||||
[ dialect(xmlns),
|
||||
space(sgml)
|
||||
]),
|
||||
rdf_start_file([], Cleanup),
|
||||
make_rdf_state([base_uri('http://test.org/test/')], State, _),
|
||||
xml_to_plrdf(RDFElement, RDF, State),
|
||||
rdf_end_file(Cleanup),
|
||||
format('============= Prolog term ==============~n', []),
|
||||
pretty_print(RDF),
|
||||
rdf_triples(RDF, Triples),
|
||||
format('============= Triples ==================~n', []),
|
||||
write_triples(Triples).
|
||||
|
||||
time_file(File) :-
|
||||
time(load_rdf(File, Triples)),
|
||||
length(Triples, Len),
|
||||
format('Created ~w triples~n', [Len]).
|
||||
|
||||
passed(Id) :-
|
||||
integer(Id), !,
|
||||
atomic_list_concat(['suite/t', Id, '.rdf'], File),
|
||||
passed(File).
|
||||
passed(File) :-
|
||||
rdf_reset_ids,
|
||||
ok_file(File, OkFile),
|
||||
load_rdf(File, Triples),
|
||||
open(OkFile, write, Fd, [encoding(utf8)]),
|
||||
save_triples(Triples, Fd),
|
||||
close(Fd),
|
||||
length(Triples, N),
|
||||
format('Saved ~d triples to ~w~n', [N, OkFile]).
|
||||
|
||||
:- dynamic failed/1.
|
||||
|
||||
test_rdf :-
|
||||
test(load_rdf),
|
||||
test(process_rdf).
|
||||
|
||||
test(How) :-
|
||||
retractall(failed(_)),
|
||||
test_dir(suite, How),
|
||||
findall(F, failed(F), Failed),
|
||||
( Failed == []
|
||||
-> true
|
||||
; length(Failed, N),
|
||||
format('ERROR: ~w tests failed~n', [N]),
|
||||
fail
|
||||
).
|
||||
|
||||
|
||||
test_dir(Dir) :-
|
||||
test_dir(Dir, load_rdf).
|
||||
|
||||
test_dir(Dir, How) :-
|
||||
format('Tests from "~w" [~w]: ', [Dir, How]),
|
||||
atom_concat(Dir, '/*.rdf', Pattern),
|
||||
expand_file_name(Pattern, TestFiles),
|
||||
maplist(test(How), TestFiles),
|
||||
format(' done~n').
|
||||
|
||||
test(How, File) :-
|
||||
format('.'), flush_output,
|
||||
rdf_reset_ids,
|
||||
ok_file(File, OkFile),
|
||||
( call(How, File, Triples)
|
||||
-> ( catch(open(OkFile, read, Fd, [encoding(utf8)]), _, fail)
|
||||
-> ( read_triples(Fd, OkTriples),
|
||||
close(Fd),
|
||||
rdf_equal_graphs(Triples, OkTriples, _Subst)
|
||||
-> true
|
||||
; assert(failed(File)),
|
||||
format('~N~w: WRONG ANSWER~n', [File])
|
||||
)
|
||||
; format('~N~w: (no .ok file)~n', [File])
|
||||
)
|
||||
; assert(failed(File)),
|
||||
format('~N~w: PARSE FAILED~n', [File])
|
||||
).
|
||||
|
||||
ok_file(File, OkFile) :-
|
||||
file_base_name(File, BaseFile),
|
||||
file_name_extension(Base, _, BaseFile),
|
||||
file_directory_name(File, Dir),
|
||||
atomic_list_concat([Dir, /, ok, /, Base, '.ok'], OkFile).
|
||||
|
||||
|
||||
save_triples([], _).
|
||||
save_triples([H|T], Fd) :-
|
||||
format(Fd, '~q.~n', [H]),
|
||||
save_triples(T, Fd).
|
||||
|
||||
read_triples(Fd, Terms) :-
|
||||
read(Fd, T0),
|
||||
read_triples(T0, Fd, Terms).
|
||||
|
||||
read_triples(end_of_file, _, []) :- !.
|
||||
read_triples(rdf(S0,P0,O0), Fd, [rdf(S,P,O)|R]) :-
|
||||
global_ref(S0, S),
|
||||
global_ref(P0, P),
|
||||
global_obj(O0, O),
|
||||
read(Fd, T1),
|
||||
read_triples(T1, Fd, R).
|
||||
|
||||
global_ref(rdf:Local, Global) :-
|
||||
rdf_name_space(NS), !,
|
||||
atom_concat(NS, Local, Global).
|
||||
global_ref(NS:Local, Global) :- !,
|
||||
atom_concat(NS, Local, Global).
|
||||
global_ref(URI, URI).
|
||||
|
||||
global_obj(literal(X), literal(X)) :- !.
|
||||
global_obj(Local, Global) :-
|
||||
global_ref(Local, Global).
|
||||
|
||||
|
||||
write_triples([]) :- !.
|
||||
write_triples([H|T]) :- !,
|
||||
write_triple(H),
|
||||
write_triples(T).
|
||||
|
||||
write_triple(Triple) :-
|
||||
is_rdf_triple(Triple), !,
|
||||
Triple = rdf(S,P,O),
|
||||
format('{~q, ~q, ~q}~n', [S,P,O]).
|
||||
write_triple(Triple) :-
|
||||
format('@@@@@ Bad Triple: ~p~n', [Triple]),
|
||||
fail.
|
||||
|
||||
cat(File) :-
|
||||
open(File, read, Fd),
|
||||
copy_stream_data(Fd, user_output),
|
||||
close(Fd).
|
||||
|
||||
:- dynamic triple/1.
|
||||
|
||||
process_rdf(File, Triples) :-
|
||||
retractall(triple(_)),
|
||||
process_rdf(File, assert_triples, []),
|
||||
findall(T, retract(triple(T)), Triples).
|
||||
|
||||
assert_triples([], _).
|
||||
assert_triples([H|T], Loc) :-
|
||||
assert(triple(H)),
|
||||
assert_triples(T, Loc).
|
||||
|
||||
|
||||
/*******************************
|
||||
* VALIDATE *
|
||||
*******************************/
|
||||
|
||||
is_rdf_triple(rdf(Subject, Predicate, Object)) :-
|
||||
is_subject(Subject),
|
||||
is_predicate(Predicate),
|
||||
is_object(Object).
|
||||
|
||||
is_subject(0) :- !, fail. % Variables
|
||||
is_subject(URI) :- is_uri(URI), !.
|
||||
is_subject(each(URI)) :- is_uri(URI), !.
|
||||
is_subject(prefix(Pattern)) :-
|
||||
atom(Pattern), !.
|
||||
|
||||
is_predicate(0) :- !, fail.
|
||||
is_predicate(rdf:RdfPred) :- !,
|
||||
is_rdf_predicate(RdfPred).
|
||||
is_predicate(NS:Pred) :- !,
|
||||
atom(NS),
|
||||
atom(Pred).
|
||||
is_predicate(Pred) :-
|
||||
atom(Pred).
|
||||
|
||||
is_object(0) :- !,
|
||||
fail.
|
||||
is_object(literal(XML)) :- !,
|
||||
is_xml(XML).
|
||||
is_object(rdf:RdfType) :- !,
|
||||
is_rdf_type(RdfType).
|
||||
is_object(URI) :-
|
||||
is_uri(URI).
|
||||
|
||||
is_object(Subject) :-
|
||||
is_subject(Subject), !.
|
||||
is_object(Pred) :-
|
||||
is_predicate(Pred), !.
|
||||
|
||||
is_uri(URI) :- atom(URI).
|
||||
|
||||
is_xml(_XML). % for now
|
||||
|
||||
is_rdf_predicate(RdfPred) :- atom(RdfPred).
|
||||
|
||||
is_rdf_type(RdfType) :- atom(RdfType).
|
||||
|
||||
/*******************************
|
||||
* UTIL *
|
||||
*******************************/
|
||||
|
||||
% find_rdf(+XMLTerm, -RDFTerm)
|
||||
%
|
||||
% If the document contains an embedded RDF term, return it, else
|
||||
% return the whole document. The latter is a bit dubious, but good
|
||||
% for the purpose of this test-file
|
||||
|
||||
find_rdf(Term, RDFTerm) :-
|
||||
RDFTerm = element(NS:'RDF', _, _),
|
||||
term_member(RDFTerm, Term), !,
|
||||
( rdf_name_space(NS)
|
||||
-> true
|
||||
; assert(rdf_parser:rdf_name_space(NS)),
|
||||
assert(new_rdf_namespace(NS))
|
||||
).
|
||||
find_rdf(Term, Term).
|
||||
|
||||
term_member(X, X).
|
||||
term_member(X, Compound) :-
|
||||
compound(Compound),
|
||||
arg(_, Compound, Arg),
|
||||
term_member(X, Arg).
|
||||
|
||||
|
||||
/*******************************
|
||||
* SHOW DIAGRAM *
|
||||
*******************************/
|
||||
|
||||
show_ok(Test) :-
|
||||
ok_file(Test, File),
|
||||
open(File, read, Fd, [encoding(utf8)]),
|
||||
read_triples(Fd, OkTriples),
|
||||
close(Fd),
|
||||
new(D, rdf_diagram(string('Ok for %s', File))),
|
||||
send(D, triples, OkTriples),
|
||||
send(D, open).
|
||||
|
|
@ -0,0 +1,162 @@
|
|||
/* $Id$
|
||||
|
||||
Part of SWI-Prolog
|
||||
|
||||
Author: Jan Wielemaker
|
||||
E-mail: wielemak@science.uva.nl
|
||||
WWW: http://www.swi-prolog.org
|
||||
Copyright (C): 1985-2007, University of Amsterdam
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU General Public License
|
||||
as published by the Free Software Foundation; either version 2
|
||||
of the License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
As a special exception, if you link this library with other files,
|
||||
compiled with a Free Software compiler, to produce an executable, this
|
||||
library does not by itself cause the resulting executable to be covered
|
||||
by the GNU General Public License. This exception does not however
|
||||
invalidate any other reasons why the executable file might be covered by
|
||||
the GNU General Public License.
|
||||
*/
|
||||
|
||||
:- module(test_rdf_write,
|
||||
[ test_write/0,
|
||||
run_tests/0,
|
||||
run_tests/1
|
||||
]).
|
||||
|
||||
:- asserta(user:file_search_path(foreign, '../sgml')).
|
||||
:- asserta(user:file_search_path(foreign, '../semweb')).
|
||||
:- asserta(user:file_search_path(foreign, '../clib')).
|
||||
:- asserta(user:file_search_path(library, '..')).
|
||||
:- asserta(user:file_search_path(library, '../sgml')).
|
||||
:- asserta(user:file_search_path(library, '.')).
|
||||
:- asserta(user:file_search_path(library, '../plunit')).
|
||||
:- asserta(user:file_search_path(library, '../clib')).
|
||||
|
||||
:- use_module(library(plunit)).
|
||||
:- use_module(library(rdf_write)).
|
||||
:- use_module(library(sgml)).
|
||||
:- use_module(library(lists)).
|
||||
:- use_module(library(debug)).
|
||||
:- use_module(library(semweb/rdf_db)).
|
||||
:- use_module(rdf).
|
||||
|
||||
test_write :-
|
||||
run_tests([ rdf_write
|
||||
]).
|
||||
|
||||
|
||||
/*******************************
|
||||
* ROUND TRIP *
|
||||
*******************************/
|
||||
|
||||
test_graph(Triples) :-
|
||||
tmp_file(rdf, Tmp),
|
||||
open(Tmp, write, Out, [encoding(utf8)]),
|
||||
rdf_write_xml(Out, Triples),
|
||||
close(Out),
|
||||
load_rdf(Tmp, ReadTriples),
|
||||
delete_file(Tmp),
|
||||
compare_triples(Triples, ReadTriples, _).
|
||||
|
||||
|
||||
/*******************************
|
||||
* COMPARING *
|
||||
*******************************/
|
||||
|
||||
% compare_triples(+PlRDF, +NTRDF, -Substitions)
|
||||
%
|
||||
% Compare two models and if they are equal, return a list of
|
||||
% PlID = NTID, mapping NodeID elements.
|
||||
|
||||
|
||||
compare_triples(A, B, Substitutions) :-
|
||||
compare_list(A, B, [], Substitutions), !.
|
||||
|
||||
compare_list([], [], S, S).
|
||||
compare_list([H1|T1], In2, S0, S) :-
|
||||
select(H2, In2, T2),
|
||||
compare_triple(H1, H2, S0, S1),
|
||||
compare_list(T1, T2, S1, S).
|
||||
|
||||
compare_triple(rdf(Subj1,P1,O1), rdf(Subj2, P2, O2), S0, S) :-
|
||||
compare_field(Subj1, Subj2, S0, S1),
|
||||
compare_field(P1, P2, S1, S2),
|
||||
compare_field(O1, O2, S2, S).
|
||||
|
||||
compare_field(X, X, S, S) :- !.
|
||||
compare_field(literal(X), xml(X), S, S) :- !. % TBD
|
||||
compare_field(rdf:Name, Atom, S, S) :-
|
||||
atom(Atom),
|
||||
rdf_parser:rdf_name_space(NS),
|
||||
atom_concat(NS, Name, Atom), !.
|
||||
compare_field(NS:Name, Atom, S, S) :-
|
||||
atom(Atom),
|
||||
atom_concat(NS, Name, Atom), !.
|
||||
compare_field(X, Id, S, S) :-
|
||||
memberchk(X=Id, S), !.
|
||||
compare_field(X, Y, S, [X=Y|S]) :-
|
||||
\+ memberchk(X=_, S),
|
||||
rdf_is_bnode(X),
|
||||
rdf_is_bnode(Y),
|
||||
debug(bnode, 'Assume ~w = ~w~n', [X, Y]).
|
||||
|
||||
|
||||
/*******************************
|
||||
* TESTS *
|
||||
*******************************/
|
||||
|
||||
:- begin_tests(rdf_write).
|
||||
|
||||
test(1, true) :-
|
||||
test_graph([ rdf(s, p, o)
|
||||
]).
|
||||
test(anon_s, true) :-
|
||||
test_graph([ rdf('__s', p, o)
|
||||
]).
|
||||
test(anon_o, true) :-
|
||||
test_graph([ rdf(s, p, '__o')
|
||||
]).
|
||||
test(anon_loop, blocked('NodeID map must check for cycles')) :-
|
||||
test_graph([ rdf('__r1', p1, '__r2'),
|
||||
rdf('__r2', p1, '__r1')
|
||||
]).
|
||||
test(anon_loop, true) :-
|
||||
test_graph([ rdf('__r1', p1, '__r2'),
|
||||
rdf('__r1', p2, '__r2'),
|
||||
rdf('__r2', p1, '__r1'),
|
||||
rdf('__r2', p2, '__r1')
|
||||
]).
|
||||
test(anon_reuse, true) :-
|
||||
test_graph([ rdf('__s1', p1, '__o1'),
|
||||
rdf('__s2', p1, '__o1')
|
||||
]).
|
||||
test(anon_reuse, true) :-
|
||||
test_graph([ rdf('__s1', p1, '__o1'),
|
||||
rdf('__s2', p1, '__o1'),
|
||||
rdf('__o1', name, literal(foo))
|
||||
]).
|
||||
test(literal, true) :-
|
||||
test_graph([ rdf(s, p, literal(hello))
|
||||
]).
|
||||
test(lang, true) :-
|
||||
test_graph([ rdf(s, p, literal(lang(en, hello)))
|
||||
]).
|
||||
test(type, true) :-
|
||||
test_graph([ rdf(s, p, literal(type(t, hello)))
|
||||
]).
|
||||
|
||||
:- end_tests(rdf_write).
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,467 @@
|
|||
/* $Id$
|
||||
|
||||
Part of SWI-Prolog SGML/XML parser
|
||||
|
||||
Author: Jan Wielemaker
|
||||
E-mail: jan@swi.psy.uva.nl
|
||||
WWW: http://www.swi.psy.uva.nl/projects/SWI-Prolog/
|
||||
Copying: LGPL-2. See the file COPYING or http://www.gnu.org
|
||||
|
||||
Copyright (C) 1990-2002 SWI, University of Amsterdam. All rights reserved.
|
||||
*/
|
||||
|
||||
:- module(rdf_w3c_test,
|
||||
[ process_manifest/0,
|
||||
process_manifest/1,
|
||||
run_tests/0, % run all tests
|
||||
run/0, % run selected test
|
||||
show/1, % RDF diagram for File
|
||||
run_test/1 % run a single test
|
||||
]).
|
||||
|
||||
% get libraries locally
|
||||
:- asserta(user:file_search_path(library, '.')).
|
||||
|
||||
:- use_module(rdf). % our RDF parser
|
||||
:- use_module(rdf_ntriples). % read .nt files
|
||||
:- load_files([ library(pce),
|
||||
library(toolbar),
|
||||
library(pce_report),
|
||||
rdf_diagram,
|
||||
library('emacs/emacs')
|
||||
],
|
||||
[ silent(true)
|
||||
]).
|
||||
|
||||
:- dynamic
|
||||
verbose/0.
|
||||
%verbose.
|
||||
|
||||
set_verbose :-
|
||||
verbose, !.
|
||||
set_verbose :-
|
||||
assert(verbose).
|
||||
|
||||
:- dynamic
|
||||
rdf/3.
|
||||
|
||||
ns(test,
|
||||
'http://www.w3.org/2000/10/rdf-tests/rdfcore/testSchema#').
|
||||
|
||||
local('http://www.w3.org/2000/10/rdf-tests/rdfcore/',
|
||||
'W3Ctests/').
|
||||
|
||||
process_manifest :-
|
||||
process_manifest('W3Ctests/Manifest.rdf').
|
||||
process_manifest(Manifest) :-
|
||||
retractall(rdf(_,_,_)),
|
||||
load_rdf(Manifest, Triples),
|
||||
assert_triples(Triples).
|
||||
|
||||
assert_triples([]).
|
||||
assert_triples([rdf(S, P, O)|T]) :-
|
||||
canonise(S, Subject),
|
||||
canonise(P, Predicate),
|
||||
canonise(O, Object),
|
||||
assert(rdf(Subject, Predicate, Object)),
|
||||
assert_triples(T).
|
||||
|
||||
canonise(NS:Name, N:Name) :-
|
||||
ns(N, NS), !.
|
||||
canonise(Absolute, N:Name) :-
|
||||
atom(Absolute),
|
||||
ns(N, NS),
|
||||
atom_concat(NS, Name, Absolute), !.
|
||||
canonise(X, X).
|
||||
|
||||
|
||||
run_tests :-
|
||||
process_manifest,
|
||||
start_tests,
|
||||
( rdf(About, rdf:type, test:Type),
|
||||
\+ rdf(About, test:status, literal('OBSOLETE')),
|
||||
test_type(Type),
|
||||
% once(run_test(About)), % Should not be needed
|
||||
run_test(About),
|
||||
fail
|
||||
; true
|
||||
), !,
|
||||
report_results.
|
||||
|
||||
test_type('PositiveParserTest').
|
||||
%test_type('NegativeParserTest').
|
||||
|
||||
run_test(Test) :-
|
||||
rdf(Test, test:inputDocument, In),
|
||||
local_file(In, InFile),
|
||||
exists_file(InFile),
|
||||
( load_rdf(InFile, RDF,
|
||||
[ base_uri(In),
|
||||
expand_foreach(true)
|
||||
])
|
||||
-> true
|
||||
; RDF = []
|
||||
),
|
||||
Data = [ source(InFile),
|
||||
result(RDF),
|
||||
norm(NT),
|
||||
substitutions(Substitions)
|
||||
],
|
||||
% there may be alternative output
|
||||
% documents
|
||||
( rdf(Test, test:outputDocument, Out),
|
||||
local_file(Out, NTFile),
|
||||
load_rdf_ntriples(NTFile, NT),
|
||||
feedback('Comparing to ~w~n', [NTFile]),
|
||||
compare_triples(RDF, NT, Substitions)
|
||||
-> test_result(pass, Test, Data)
|
||||
% if all fails, display the first
|
||||
; rdf(Test, test:outputDocument, Out),
|
||||
local_file(Out, NTFile),
|
||||
load_rdf_ntriples(NTFile, NT),
|
||||
Substitions = [],
|
||||
test_result(fail, Test, Data)
|
||||
).
|
||||
|
||||
|
||||
local_file(URL, File) :-
|
||||
local(URLPrefix, FilePrefix),
|
||||
atom_concat(URLPrefix, Base, URL), !,
|
||||
atom_concat(FilePrefix, Base, File).
|
||||
|
||||
|
||||
/*******************************
|
||||
* GUI *
|
||||
*******************************/
|
||||
|
||||
:- pce_begin_class(w3c_rdf_test_gui, frame).
|
||||
|
||||
initialise(F, Show:chain) :->
|
||||
send_super(F, initialise, 'W3C RDF test suite results'),
|
||||
send(F, append, new(B, browser)),
|
||||
send(B, hor_stretch, 100),
|
||||
send(B, hor_shrink, 100),
|
||||
( send(Show, member, source)
|
||||
-> new(V, emacs_view(height := 3)),
|
||||
send(V, name, text)
|
||||
; true
|
||||
),
|
||||
( send(Show, member, result)
|
||||
-> new(R, rdf_diagram),
|
||||
send(R, name, result),
|
||||
send(R, label, 'Result')
|
||||
; true
|
||||
),
|
||||
( send(Show, member, norm)
|
||||
-> new(N, rdf_diagram),
|
||||
send(N, name, norm),
|
||||
send(N, label, 'Norm')
|
||||
; true
|
||||
),
|
||||
stack_windows([V,R,N], _, W),
|
||||
( nonvar(W)
|
||||
-> send(W, right, B)
|
||||
; true
|
||||
),
|
||||
send(new(D, tool_dialog(F)), above, B),
|
||||
send(new(report_dialog), below, B),
|
||||
send(F, fill_menu, D),
|
||||
send(F, fill_browser, B).
|
||||
|
||||
stack_windows([], L, L).
|
||||
stack_windows([H|T], W0, W) :-
|
||||
var(H), !,
|
||||
stack_windows(T, W0, W).
|
||||
stack_windows([H|T], W0, W) :-
|
||||
var(W0), !,
|
||||
stack_windows(T, H, W).
|
||||
stack_windows([H|T], WL, W) :-
|
||||
send(H, below, WL),
|
||||
stack_windows(T, H, W).
|
||||
|
||||
fill_menu(F, D:tool_dialog) :->
|
||||
send_list(D,
|
||||
[ append(menu_item(exit, message(F, destroy)),
|
||||
file)
|
||||
]).
|
||||
|
||||
fill_browser(_F, B:browser) :->
|
||||
send(B, style, pass, style(colour := dark_green)),
|
||||
send(B, style, fail, style(colour := red)),
|
||||
send(B?image, recogniser,
|
||||
handler(ms_right_down,
|
||||
and(message(B, selection,
|
||||
?(B, dict_item, @event)),
|
||||
new(or)))),
|
||||
send(B, popup, new(P, popup)),
|
||||
send(B, select_message, message(@arg1, run)),
|
||||
send_list(P, append,
|
||||
[ menu_item(run,
|
||||
message(@arg1, run)),
|
||||
menu_item(edit,
|
||||
message(@arg1, edit_test)),
|
||||
gap,
|
||||
menu_item(show_result,
|
||||
message(@arg1, show_triples, result)),
|
||||
menu_item(show_norm,
|
||||
message(@arg1, show_triples, norm)),
|
||||
gap,
|
||||
menu_item(discussion,
|
||||
message(@arg1, open_url, discussion),
|
||||
condition :=
|
||||
message(@arg1, has_url, discussion)),
|
||||
menu_item(approval,
|
||||
message(@arg1, open_url, approval),
|
||||
condition :=
|
||||
message(@arg1, has_url, approval)),
|
||||
gap,
|
||||
menu_item(copy_test_uri,
|
||||
message(@arg1, copy_test_uri))
|
||||
]).
|
||||
|
||||
|
||||
test_result(F, Result:{pass,fail}, Test:name, Data:prolog) :->
|
||||
"Test failed"::
|
||||
get(F, member, browser, B),
|
||||
( get(B, member, Test, Item)
|
||||
-> send(Item, object, prolog(Data)),
|
||||
send(Item, style, Result)
|
||||
; send(B, append,
|
||||
rdf_test_item(Test, @default, prolog(Data), Result))
|
||||
).
|
||||
|
||||
clear(F) :->
|
||||
get(F, member, browser, B),
|
||||
send(B, clear).
|
||||
|
||||
summarise(F) :->
|
||||
get(F, member, browser, Browser),
|
||||
new(Pass, number(0)),
|
||||
new(Fail, number(0)),
|
||||
send(Browser?members, for_all,
|
||||
if(@arg1?style == pass,
|
||||
message(Pass, plus, 1),
|
||||
message(Fail, plus, 1))),
|
||||
send(F, report, status, '%d tests succeeded; %d failed',
|
||||
Pass, Fail).
|
||||
|
||||
:- pce_end_class(w3c_rdf_test_gui).
|
||||
|
||||
:- pce_begin_class(rdf_test_item, dict_item).
|
||||
|
||||
|
||||
edit_test(Item) :->
|
||||
"Edit input document of test"::
|
||||
get(Item, object, List),
|
||||
member(source(InFile), List),
|
||||
edit(file(InFile)).
|
||||
|
||||
show_triples(Item, Set:{result,norm}) :->
|
||||
"Show result of our parser"::
|
||||
get(Item, key, Test),
|
||||
get(Item, object, List),
|
||||
Term =.. [Set,Triples],
|
||||
member(Term, List),
|
||||
send(Item, show_diagram(Triples,
|
||||
string('%s for %s', Set?label_name, Test))).
|
||||
|
||||
show_diagram(_Item, Triples:prolog, Label:name) :->
|
||||
"Show diagram for triples"::
|
||||
new(D, rdf_diagram(Label)),
|
||||
send(new(report_dialog), below, D),
|
||||
send(D, triples, Triples),
|
||||
send(D, open).
|
||||
|
||||
open_url(Item, Which:name) :->
|
||||
"Open associated URL in browser"::
|
||||
get(Item, key, Test),
|
||||
rdf(Test, test:Which, URL),
|
||||
www_open_url(URL).
|
||||
|
||||
has_url(Item, Which:name) :->
|
||||
"Test if item has URL"::
|
||||
get(Item, key, Test),
|
||||
rdf(Test, test:Which, _URL).
|
||||
|
||||
run(Item) :->
|
||||
"Re-run the test"::
|
||||
get(Item, key, Test),
|
||||
run_test(Test),
|
||||
send(Item, show).
|
||||
|
||||
copy_test_uri(Item) :->
|
||||
"Copy URI of test to clipboard"::
|
||||
get(Item, key, Test),
|
||||
send(@display, copy, Test).
|
||||
|
||||
show(Item) :->
|
||||
"Show source, result and norm diagrams"::
|
||||
get(Item?image, frame, Frame),
|
||||
get(Item, object, List),
|
||||
( get(Frame, member, result, Result)
|
||||
-> member(result(RTriples), List),
|
||||
send(Result, triples, RTriples)
|
||||
; true
|
||||
),
|
||||
( get(Frame, member, norm, Norm)
|
||||
-> member(norm(NTriples), List),
|
||||
send(Norm, triples, NTriples)
|
||||
; true
|
||||
),
|
||||
( get(Frame, member, text, View)
|
||||
-> member(source(File), List),
|
||||
send(View, text_buffer, new(TB, emacs_buffer(File))),
|
||||
% scroll to RDF text
|
||||
( member(Pattern, [':RDF', 'RDF']),
|
||||
get(TB, find, 0, Pattern, Start),
|
||||
get(TB, scan, Start, line, 0, start, BOL)
|
||||
-> send(View, scroll_to, BOL, 1)
|
||||
; true
|
||||
)
|
||||
; true
|
||||
).
|
||||
% member(substitutions(Substitutions), List),
|
||||
% send(Result, copy_layout, Norm, Substitutions),
|
||||
|
||||
:- pce_end_class(rdf_test_item).
|
||||
|
||||
|
||||
:- pce_global(@rdf_test_gui, make_rdf_test_gui).
|
||||
|
||||
make_rdf_test_gui(Ref) :-
|
||||
send(new(Ref, w3c_rdf_test_gui(chain(source,result))), open).
|
||||
|
||||
|
||||
test_result(Result, Test, Data) :-
|
||||
send(@rdf_test_gui, test_result, Result, Test, Data),
|
||||
( Result == fail, verbose
|
||||
-> member(result(Our), Data),
|
||||
length(Our, OurLength),
|
||||
format('~N** Our Triples (~w)~n', OurLength),
|
||||
pp(Our),
|
||||
member(norm(Norm), Data),
|
||||
length(Norm, NormLength),
|
||||
format('~N** Normative Triples (~w)~n', NormLength),
|
||||
pp(Norm)
|
||||
; true
|
||||
).
|
||||
|
||||
|
||||
|
||||
start_tests :-
|
||||
send(@rdf_test_gui, clear).
|
||||
|
||||
report_results :-
|
||||
send(@rdf_test_gui, summarise).
|
||||
|
||||
run :-
|
||||
set_verbose,
|
||||
get(@rdf_test_gui, member, browser, B),
|
||||
get(B, selection, DI),
|
||||
get(DI, key, Test),
|
||||
run_test(Test).
|
||||
|
||||
|
||||
/*******************************
|
||||
* SHOW A FILE *
|
||||
*******************************/
|
||||
|
||||
|
||||
show(File) :-
|
||||
rdf_diagram_from_file(File).
|
||||
|
||||
|
||||
/*******************************
|
||||
* COMPARING *
|
||||
*******************************/
|
||||
|
||||
% compare_triples(+PlRDF, +NTRDF, -Substitions)
|
||||
%
|
||||
% Compare two models and if they are equal, return a list of
|
||||
% PlID = NTID, mapping NodeID elements.
|
||||
|
||||
|
||||
compare_triples(A, B, Substitutions) :-
|
||||
compare_list(A, B, [], Substitutions).
|
||||
|
||||
compare_list([], [], S, S).
|
||||
compare_list(L1, L2, S0, S) :-
|
||||
take_bag(L1, B1, E1, R1), !,
|
||||
take_bag(L2, B2, E2, R2),
|
||||
compare_field(B1, B2, S0, S1),
|
||||
compare_bags(E1, E2, S1, S2),
|
||||
compare_list(R1, R2, S2, S).
|
||||
compare_list([H1|T1], In2, S0, S) :-
|
||||
select(H2, In2, T2),
|
||||
compare_triple(H1, H2, S0, S1), % put(.), flush_output,
|
||||
compare_list(T1, T2, S1, S).
|
||||
|
||||
compare_triple(rdf(Subj1,P1,O1), rdf(Subj2, P2, O2), S0, S) :-
|
||||
compare_field(Subj1, Subj2, S0, S1),
|
||||
compare_field(P1, P2, S1, S2),
|
||||
compare_field(O1, O2, S2, S).
|
||||
|
||||
compare_field(X, X, S, S) :- !.
|
||||
compare_field(literal(X), xml(X), S, S) :- !. % TBD
|
||||
compare_field(rdf:Name, Atom, S, S) :-
|
||||
atom(Atom),
|
||||
rdf_parser:rdf_name_space(NS),
|
||||
atom_concat(NS, Name, Atom), !.
|
||||
compare_field(NS:Name, Atom, S, S) :-
|
||||
atom(Atom),
|
||||
atom_concat(NS, Name, Atom), !.
|
||||
compare_field(X, node(Id), S, S) :-
|
||||
memberchk(X=Id, S), !.
|
||||
compare_field(X, node(Id), S, [X=Id|S]) :-
|
||||
\+ memberchk(X=_, S),
|
||||
atom(X),
|
||||
generated_prefix(Prefix),
|
||||
sub_atom(X, 0, _, _, Prefix), !,
|
||||
feedback('Assume ~w = ~w~n', [X, node(Id)]).
|
||||
|
||||
generated_prefix(Prefix) :-
|
||||
rdf_truple:anon_base(Prefix).
|
||||
|
||||
% compare_bags(+Members1, +Members2, +S0, -S)
|
||||
%
|
||||
% Order of _1, _2, etc. are not relevant in BadID reification. Are
|
||||
% they in general? Anyway, we'll normalise the order of the bags
|
||||
|
||||
compare_bags([], [], S, S).
|
||||
compare_bags([E1|T1], M, S0, S) :-
|
||||
select(E2, M, T2),
|
||||
compare_field(E1, E2, S0, S1),
|
||||
compare_bags(T1, T2, S1, S).
|
||||
|
||||
take_bag(Triples, Bag, Elems, RestTriples) :-
|
||||
select(rdf(Bag, Type, BagClass), Triples, T1),
|
||||
compare_field(rdf:type, Type, [], []),
|
||||
compare_field(rdf:'Bag', BagClass, [], []),
|
||||
bag_members(T1, Bag, Elems, RestTriples).
|
||||
|
||||
bag_members([], _, [], []).
|
||||
bag_members([rdf(Bag, IsElm, E)|T], Bag, [E|ET], Rest) :-
|
||||
member_prop(IsElm), !,
|
||||
bag_members(T, Bag, ET, Rest).
|
||||
bag_members([T0|T], Bag, Elems, [T0|R]) :-
|
||||
bag_members(T, Bag, Elems, R).
|
||||
|
||||
member_prop(rdf:Name) :-
|
||||
atom_codes(Name, [0'_|Codes]),
|
||||
number_codes(_N, Codes), !.
|
||||
member_prop(Prop) :-
|
||||
atom(Prop),
|
||||
rdf_parser:rdf_name_space(NS),
|
||||
atom_concat(NS, Name, Prop),
|
||||
atom_codes(Name, [0'_|Codes]),
|
||||
number_codes(_N, Codes), !.
|
||||
|
||||
|
||||
% feedback(+Format, +Args)
|
||||
%
|
||||
% Print if verbose
|
||||
|
||||
feedback(Fmt, Args) :-
|
||||
verbose, !,
|
||||
format(user_error, Fmt, Args).
|
||||
feedback(_, _).
|
||||
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Reference in New Issue