Class RdfXmlSpecsHelper

Static Helper class for providing Constants and Helper functions for use by RDF/XML parsers.
Inheritance
System.Object
RdfXmlSpecsHelper
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: VDS.RDF.Parsing
Assembly: dotNetRDF.dll
Syntax
public static class RdfXmlSpecsHelper

Methods

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IsAboutAttribute(AttributeEvent)

Checks whether an attribute is an rdf:about attribute.
Declaration
[Obsolete("Use IsAboutAttribute(AttributeEvent, INamespaceMapper)")]
public static bool IsAboutAttribute(AttributeEvent attr)
Parameters
Type Name Description
AttributeEvent attr Attribute to Test.
Returns
Type Description
System.Boolean True if is an rdf:about attribute.
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IsAboutAttribute(AttributeEvent, INamespaceMapper)

Checks whether an attribute is an rdf:about attribute.
Declaration
public static bool IsAboutAttribute(AttributeEvent attr, INamespaceMapper nsMapper)
Parameters
Type Name Description
AttributeEvent attr Attribute to Test.
INamespaceMapper nsMapper The namespace prefix mappings to use when expanding the namespace prefix of the attribute.
Returns
Type Description
System.Boolean True if is an rdf:about attribute.
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IsAbsoluteURI(String)

Checks whether a Uri Reference is an absolute Uri.
Declaration
public static bool IsAbsoluteURI(string uriref)
Parameters
Type Name Description
System.String uriref Uri Reference to Test.
Returns
Type Description
System.Boolean
Remarks
Implemented by seeing if the Uri Reference starts with a Uri scheme specifier.
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IsAmbigiousAttributeName(String)

Checks whether a given Local Name is potentially ambiguous.
Declaration
public static bool IsAmbigiousAttributeName(string name)
Parameters
Type Name Description
System.String name Local Name to Test.
Returns
Type Description
System.Boolean True if the Local Name is ambiguous.
Remarks
This embodies Local Names which must have an rdf prefix.
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IsCoreSyntaxTerm(String)

Checks whether a given QName is a Core Syntax Term.
Declaration
[Obsolete("Use IsCoreSyntaxTerm(Uri, string) instead")]
public static bool IsCoreSyntaxTerm(string qname)
Parameters
Type Name Description
System.String qname QName to Test.
Returns
Type Description
System.Boolean True if the QName is a Core Syntax Term.
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IsCoreSyntaxTerm(Uri, String)

Checks whether a given expanded name is a Core Syntax Term.
Declaration
public static bool IsCoreSyntaxTerm(Uri nsUri, string localName)
Parameters
Type Name Description
System.Uri nsUri The namespace URI of the expanded name.
System.String localName The local name part of the expanded name.
Returns
Type Description
System.Boolean True if the expanded name is a Core Syntax Term.
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IsDataTypeAttribute(AttributeEvent)

Checks whether an attribute is an rdf:datatype attribute.
Declaration
[Obsolete("Use IsDataTypeAttribute(AttributeEvent, INestedNamespaceMapper) instead.")]
public static bool IsDataTypeAttribute(AttributeEvent attr)
Parameters
Type Name Description
AttributeEvent attr Attribute to Test.
Returns
Type Description
System.Boolean True if is an rdf:datatype attribute.
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IsDataTypeAttribute(AttributeEvent, INestedNamespaceMapper)

Checks whether an attribute is an rdf:datatype attribute.
Declaration
public static bool IsDataTypeAttribute(AttributeEvent attr, INestedNamespaceMapper namespaceMapper)
Parameters
Type Name Description
AttributeEvent attr Attribute to Test.
INestedNamespaceMapper namespaceMapper The namespace prefix mappings to use when expanding the namespace prefix of the attribute.
Returns
Type Description
System.Boolean True if is an rdf:datatype attribute.
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IsIDAttribute(AttributeEvent)

Checks whether an attribute is an rdf:ID attribute.
Declaration
[Obsolete("Use IsIDAttribute(AttributeEvent, INamespaceMapper) instead")]
public static bool IsIDAttribute(AttributeEvent attr)
Parameters
Type Name Description
AttributeEvent attr Attribute to Test.
Returns
Type Description
System.Boolean True if is an rdf:ID attribute.
Remarks
Does some validation on ID value but other validation occurs at other points in the Parsing.
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IsIDAttribute(AttributeEvent, INestedNamespaceMapper)

Checks whether an attribute is an rdf:ID attribute.
Declaration
public static bool IsIDAttribute(AttributeEvent attr, INestedNamespaceMapper nsMapper)
Parameters
Type Name Description
AttributeEvent attr Attribute to Test.
INestedNamespaceMapper nsMapper The namespace prefix mappings to use when expanding the namespace prefix of the attribute.
Returns
Type Description
System.Boolean True if is an rdf:ID attribute.
Remarks
Does some validation on ID value but other validation occurs at other points in the Parsing.
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IsLiElement(ElementEvent, INamespaceMapper)

Checks whether a give element is an rdf:li element.
Declaration
public static bool IsLiElement(ElementEvent e, INamespaceMapper nsMapper)
Parameters
Type Name Description
ElementEvent e The element to test.
INamespaceMapper nsMapper The namespace mappings to use when expanding element QName prefixes.
Returns
Type Description
System.Boolean True if the element is an rdf:li element, false otherwise.
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IsNodeElementUri(String)

Checks whether a given QName is valid as a Node Element Uri.
Declaration
[Obsolete("Use IsNodeElementUri(Uri, localName) instead")]
public static bool IsNodeElementUri(string qname)
Parameters
Type Name Description
System.String qname QName to Test.
Returns
Type Description
System.Boolean True if the QName is valid.
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IsNodeElementUri(Uri, String)

Checks whether a given expanded name is valid as a Node Element Uri.
Declaration
public static bool IsNodeElementUri(Uri nsUri, string localName)
Parameters
Type Name Description
System.Uri nsUri The namespace URI of the expanded name.
System.String localName The local name part of the expanded name.
Returns
Type Description
System.Boolean True if the expanded name is valid.
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IsNodeIDAttribute(AttributeEvent)

Checks whether an attribute is an rdf:nodeID attribute.
Declaration
[Obsolete("Use IsNodeIDAttribute(AttributeEvent, INamespaceMapper) instead")]
public static bool IsNodeIDAttribute(AttributeEvent attr)
Parameters
Type Name Description
AttributeEvent attr Attribute to Test.
Returns
Type Description
System.Boolean True if is an rdf:nodeID attribute.
Remarks
Does some validation on ID value but other validation occurs at other points in the Parsing.
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IsNodeIDAttribute(AttributeEvent, INamespaceMapper)

Checks whether an attribute is an rdf:nodeID attribute.
Declaration
public static bool IsNodeIDAttribute(AttributeEvent attr, INamespaceMapper nsMapper)
Parameters
Type Name Description
AttributeEvent attr Attribute to Test.
INamespaceMapper nsMapper The namespace prefix mappings to use when expanding the namespace prefix of the attribute.
Returns
Type Description
System.Boolean True if is an rdf:nodeID attribute.
Remarks
Does some validation on ID value but other validation occurs at other points in the Parsing.
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IsOldTerm(String)

Checks whether a given QName is a Old Syntax Term.
Declaration
[Obsolete("Use IsOldTerm(Uri, string) instead")]
public static bool IsOldTerm(string qname)
Parameters
Type Name Description
System.String qname QName to Test.
Returns
Type Description
System.Boolean True if the QName is a Old Syntax Term.
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IsOldTerm(Uri, String)

Checks whether a given expanded name is a Old Syntax Term.
Declaration
public static bool IsOldTerm(Uri nsUri, string localName)
Parameters
Type Name Description
System.Uri nsUri The namespace URI of the expanded name.
System.String localName The local name part of the expanded name.
Returns
Type Description
System.Boolean True if the expanded name is a Old Syntax Term.
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IsParseTypeAttribute(AttributeEvent, INestedNamespaceMapper)

Checks whether an attribute is an rdf:parseType attribute.
Declaration
public static bool IsParseTypeAttribute(AttributeEvent attr, INestedNamespaceMapper nsMapper)
Parameters
Type Name Description
AttributeEvent attr Attribute to Test.
INestedNamespaceMapper nsMapper The namespace prefix mappings to use when expanding the namespace prefix of the attribute.
Returns
Type Description
System.Boolean True if is an rdf:parseType attribute.
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IsPropertyAttribute(AttributeEvent)

Checks whether an attribute is an property attribute.
Declaration
[Obsolete("Use IsPropertyAttribute(AttributeEvent, INamespaceMapper)")]
public static bool IsPropertyAttribute(AttributeEvent attr)
Parameters
Type Name Description
AttributeEvent attr Attribute to Test.
Returns
Type Description
System.Boolean True if is an property attribute.
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IsPropertyAttribute(AttributeEvent, INamespaceMapper)

Checks whether an attribute is an property attribute.
Declaration
public static bool IsPropertyAttribute(AttributeEvent attr, INamespaceMapper nsMapper)
Parameters
Type Name Description
AttributeEvent attr Attribute to Test.
INamespaceMapper nsMapper The namespace prefix mappings to use when expanding the namespace prefix of the attribute.
Returns
Type Description
System.Boolean True if is an property attribute.
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IsPropertyAttributeURI(String)

Checks whether a given QName is valid as a Property Attribute Uri.
Declaration
public static bool IsPropertyAttributeURI(string qname)
Parameters
Type Name Description
System.String qname QName to Test.
Returns
Type Description
System.Boolean True if the QName is valid.
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IsPropertyAttributeURI(Uri, String)

Checks whether a given expanded name is valid as a Property Attribute Uri.
Declaration
public static bool IsPropertyAttributeURI(Uri nsUri, string localName)
Parameters
Type Name Description
System.Uri nsUri The namespace URI of the expanded name.
System.String localName The local name part of the expanded name.
Returns
Type Description
System.Boolean True if the expanded name is valid.
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IsPropertyElement(ElementEvent, INamespaceMapper)

Checks whether a given element is a valid property element.
Declaration
public static bool IsPropertyElement(ElementEvent e, INamespaceMapper nsMapper)
Parameters
Type Name Description
ElementEvent e The element to test.
INamespaceMapper nsMapper The namespace mappings to use when expanding element QName prefixes.
Returns
Type Description
System.Boolean True if the element is valid.
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IsPropertyElementURI(String)

Checks whether a given QName is valid as a Property Element Uri.
Declaration
[Obsolete("Use IsPropertyElement(ElementEvent, INamespaceMapper) instead")]
public static bool IsPropertyElementURI(string qname)
Parameters
Type Name Description
System.String qname QName to Test.
Returns
Type Description
System.Boolean True if the QName is valid.
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IsRdfID(String)

Validates that an ID is a valid NCName.
Declaration
public static bool IsRdfID(string value)
Parameters
Type Name Description
System.String value ID Value to Test.
Returns
Type Description
System.Boolean True if the ID is valid.
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IsRdfNamespace(String)

Validates that a URI matches the RDF/XML namespace URI.
Declaration
public static bool IsRdfNamespace(string nsUri)
Parameters
Type Name Description
System.String nsUri The namespace URI to be validated.
Returns
Type Description
System.Boolean True if the URI matches the RDF/XML namespace URI.
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IsRdfNamespace(Uri)

Validates that a URI matches the RDF/XML namespace URI.
Declaration
public static bool IsRdfNamespace(Uri nsUri)
Parameters
Type Name Description
System.Uri nsUri The namespace URI to be validated.
Returns
Type Description
System.Boolean True if the URI matches the RDF/XML namespace URI.
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IsRdfUriReference(String)

Validates that a URIReference is valid.
Declaration
public static bool IsRdfUriReference(string value)
Parameters
Type Name Description
System.String value URIReference to Test.
Returns
Type Description
System.Boolean True.
Remarks
Currently partially implemented, some invalid Uri References may be considered valid.
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IsResourceAttribute(AttributeEvent)

Checks whether an attribute is an rdf:resource attribute.
Declaration
[Obsolete("Use IsResourceAttribute(AttributeEvent, INamespaceMapper)")]
public static bool IsResourceAttribute(AttributeEvent attr)
Parameters
Type Name Description
AttributeEvent attr Attribute to Test.
Returns
Type Description
System.Boolean True if is an rdf:resource attribute.
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IsResourceAttribute(AttributeEvent, INamespaceMapper)

Checks whether an attribute is an rdf:resource attribute.
Declaration
public static bool IsResourceAttribute(AttributeEvent attr, INamespaceMapper nsMapper)
Parameters
Type Name Description
AttributeEvent attr Attribute to Test.
INamespaceMapper nsMapper The namespace prefix mappings to use when expanding the namespace prefix of the attribute.
Returns
Type Description
System.Boolean True if is an rdf:resource attribute.
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IsSyntaxTerm(String)

Checks whether a given QName is a Syntax Term.
Declaration
[Obsolete("Use IsSyntaxTerm(Uri, string) instead")]
public static bool IsSyntaxTerm(string qname)
Parameters
Type Name Description
System.String qname QName to Test.
Returns
Type Description
System.Boolean True if the QName is a Syntax Term.
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IsSyntaxTerm(Uri, String)

Checks whether a given expanded name is a Syntax Term.
Declaration
public static bool IsSyntaxTerm(Uri nsUri, string localName)
Parameters
Type Name Description
System.Uri nsUri The namespace URI of the expanded name.
System.String localName The local name part of the expanded name.
Returns
Type Description
System.Boolean True if the expanded name is a Syntax Term.
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IsTypeAttribute(AttributeEvent, INamespaceMapper)

Checks whether an attribute is an rdf:type attribute.
Declaration
public static bool IsTypeAttribute(AttributeEvent attr, INamespaceMapper nsMapper)
Parameters
Type Name Description
AttributeEvent attr The attribute to check.
INamespaceMapper nsMapper The namespace prefix mappings to use to expand QNames.
Returns
Type Description
System.Boolean True if the attribute is and rdf:type attribute, false otherwise.
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IsValidBaseUri(String)

Checks whether a given Base Uri can be used for relative Uri resolution.
Declaration
public static bool IsValidBaseUri(string baseUri)
Parameters
Type Name Description
System.String baseUri Base Uri to Test.
Returns
Type Description
System.Boolean True if the Base Uri can be used for relative Uri resolution.
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IsValidQName(String)

Determines whether a QName is valid for use in RDF/XML.
Declaration
public static bool IsValidQName(string qname)
Parameters
Type Name Description
System.String qname QName.
Returns
Type Description
System.Boolean
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IsValidUriRefEncoding(String)

Checks whether a given URIRef is encoded in Unicode Normal Form C.
Declaration
public static bool IsValidUriRefEncoding(string uriref)
Parameters
Type Name Description
System.String uriref URIRef to Test.
Returns
Type Description
System.Boolean True if the URIRef is encoded correctly.