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.