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Diffstat (limited to 'etc/schema/rdfxml.rnc')
| -rw-r--r-- | etc/schema/rdfxml.rnc | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/etc/schema/rdfxml.rnc b/etc/schema/rdfxml.rnc new file mode 100644 index 00000000000..9730322cfdd --- /dev/null +++ b/etc/schema/rdfxml.rnc @@ -0,0 +1,205 @@ +# +# RELAX NG Compact Schema for RDF/XML Syntax +# +# This schema is for information only and NON-NORMATIVE +# +# It is based on one originally written by James Clark in +# http://lists.w3.org/Archives/Public/www-rdf-comments/2001JulSep/0248.html +# and updated with later changes. +# + +namespace local = "" +namespace rdf = "http://www.w3.org/1999/02/22-rdf-syntax-ns#" +datatypes xsd = "http://www.w3.org/2001/XMLSchema-datatypes" + + +start = doc + + +# I cannot seem to do this in RNGC so they are expanded in-line + +# coreSyntaxTerms = rdf:RDF | rdf:ID | rdf:about | rdf:parseType | rdf:resource | rdf:nodeID | rdf:datatype +# syntaxTerms = coreSyntaxTerms | rdf:Description | rdf:li +# oldTerms = rdf:aboutEach | rdf:aboutEachPrefix | rdf:bagID +# nodeElementURIs = * - ( coreSyntaxTerms | rdf:li | oldTerms ) +# propertyElementURIs = * - ( coreSyntaxTerms | rdf:Description | oldTerms ) +# propertyAttributeURIs = * - ( coreSyntaxTerms | rdf:Description | rdf:li | oldTerms ) + +# Also needed to allow rdf:li on all property element productions +# since we can't capture the rdf:li rewriting to rdf_<n> in relaxng + +# Need to add these explicitly +xmllang = attribute xml:lang { text } +xmlbase = attribute xml:base { text } +# and to forbid every other xml:* attribute, element + +doc = + RDF + +RDF = + element rdf:RDF { + xmllang?, xmlbase?, nodeElementList +} + +nodeElementList = + nodeElement* + + # Should be something like: + # ws* , ( nodeElement , ws* )* + # but RELAXNG does this by default, ignoring whitespace separating tags. + +nodeElement = + element * - ( local:* | rdf:RDF | rdf:ID | rdf:about | rdf:parseType | + rdf:resource | rdf:nodeID | rdf:datatype | rdf:li | + rdf:aboutEach | rdf:aboutEachPrefix | rdf:bagID ) { + (idAttr | nodeIdAttr | aboutAttr )?, xmllang?, xmlbase?, propertyAttr*, propertyEltList + } + + # It is not possible to say "and not things + # beginning with _ in the rdf: namespace" in RELAX NG. + +ws = + " " + + # Not used in this RELAX NG schema; but should be any legal XML + # whitespace defined by http://www.w3.org/TR/2000/REC-xml-20001006#NT-S + + +propertyEltList = + propertyElt* + + # Should be something like: + # ws* , ( propertyElt , ws* )* + # but RELAXNG does this by default, ignoring whitespace separating tags. + +propertyElt = + resourcePropertyElt | + literalPropertyElt | + parseTypeLiteralPropertyElt | + parseTypeResourcePropertyElt | + parseTypeCollectionPropertyElt | + parseTypeOtherPropertyElt | + emptyPropertyElt + +resourcePropertyElt = + element * - ( local:* | rdf:RDF | rdf:ID | rdf:about | rdf:parseType | + rdf:resource | rdf:nodeID | rdf:datatype | + rdf:Description | rdf:aboutEach | rdf:aboutEachPrefix | rdf:bagID | + xml:* ) { + idAttr?, xmllang?, xmlbase?, nodeElement + } + +literalPropertyElt = + element * - ( local:* | rdf:RDF | rdf:ID | rdf:about | rdf:parseType | + rdf:resource | rdf:nodeID | rdf:datatype | + rdf:Description | rdf:aboutEach | rdf:aboutEachPrefix | rdf:bagID | + xml:* ) { + (idAttr | datatypeAttr )?, xmllang?, xmlbase?, text + } + +parseTypeLiteralPropertyElt = + element * - ( local:* | rdf:RDF | rdf:ID | rdf:about | rdf:parseType | + rdf:resource | rdf:nodeID | rdf:datatype | + rdf:Description | rdf:aboutEach | rdf:aboutEachPrefix | rdf:bagID | + xml:* ) { + idAttr?, parseLiteral, xmllang?, xmlbase?, literal + } + +parseTypeResourcePropertyElt = + element * - ( local:* | rdf:RDF | rdf:ID | rdf:about | rdf:parseType | + rdf:resource | rdf:nodeID | rdf:datatype | + rdf:Description | rdf:aboutEach | rdf:aboutEachPrefix | rdf:bagID | + xml:* ) { + idAttr?, parseResource, xmllang?, xmlbase?, propertyEltList + } + +parseTypeCollectionPropertyElt = + element * - ( local:* | rdf:RDF | rdf:ID | rdf:about | rdf:parseType | + rdf:resource | rdf:nodeID | rdf:datatype | + rdf:Description | rdf:aboutEach | rdf:aboutEachPrefix | rdf:bagID | + xml:* ) { + idAttr?, xmllang?, xmlbase?, parseCollection, nodeElementList + } + +parseTypeOtherPropertyElt = + element * - ( local:* | rdf:RDF | rdf:ID | rdf:about | rdf:parseType | + rdf:resource | rdf:nodeID | rdf:datatype | + rdf:Description | rdf:aboutEach | rdf:aboutEachPrefix | rdf:bagID | + xml:* ) { + idAttr?, xmllang?, xmlbase?, parseOther, any + } + +emptyPropertyElt = + element * - ( local:* | rdf:RDF | rdf:ID | rdf:about | rdf:parseType | + rdf:resource | rdf:nodeID | rdf:datatype | + rdf:Description | rdf:aboutEach | rdf:aboutEachPrefix | rdf:bagID | + xml:* ) { + idAttr?, (resourceAttr | nodeIdAttr)?, xmllang?, xmlbase?, propertyAttr* + } + +idAttr = + attribute rdf:ID { + IDsymbol + } + +nodeIdAttr = + attribute rdf:nodeID { + IDsymbol + } + +aboutAttr = + attribute rdf:about { + URI-reference + } + +propertyAttr = + attribute * - ( local:* | rdf:RDF | rdf:ID | rdf:about | rdf:parseType | + rdf:resource | rdf:nodeID | rdf:datatype | rdf:li | + rdf:Description | rdf:aboutEach | + rdf:aboutEachPrefix | rdf:bagID | + xml:* ) { + string + } + +resourceAttr = + attribute rdf:resource { + URI-reference + } + +datatypeAttr = + attribute rdf:datatype { + URI-reference + } + +parseLiteral = + attribute rdf:parseType { + "Literal" + } + +parseResource = + attribute rdf:parseType { + "Resource" + } + +parseCollection = + attribute rdf:parseType { + "Collection" + } + +parseOther = + attribute rdf:parseType { + text + } + +URI-reference = + string + +literal = + any + +IDsymbol = + xsd:NMTOKEN + +any = + mixed { element * { attribute * { text }*, any }* } + |