/// <summary>
/// Checks whether an attribute is an rdf:datatype attribute.
/// </summary>
/// <param name="attr">Attribute to Test.</param>
/// <param name="namespaceMapper">The namespace prefix mappings to use when expanding the namespace prefix of the attribute.</param>
/// <returns>True if is an rdf:datatype attribute.</returns>
public static bool IsDataTypeAttribute(AttributeEvent attr, INestedNamespaceMapper namespaceMapper)
{
// QName must be rdf:datatype
if (namespaceMapper.HasNamespace(attr.Namespace) && namespaceMapper.GetNamespaceUri(attr.Namespace).ToString().Equals(NamespaceMapper.RDF) && attr.LocalName.Equals("datatype"))
{
// Must be a valid RDF Uri Reference
return(IsRdfUriReference(attr.Value));
}
else
{
return(false);
}
}
/// <summary>
/// Checks whether an attribute is an rdf:ID attribute.
/// </summary>
/// <param name="attr">Attribute to Test.</param>
/// <param name="nsMapper">The namespace prefix mappings to use when expanding the namespace prefix of the attribute.</param>
/// <returns>True if is an rdf:ID attribute.</returns>
/// <remarks>Does some validation on ID value but other validation occurs at other points in the Parsing.</remarks>
public static bool IsIDAttribute(AttributeEvent attr, INestedNamespaceMapper nsMapper)
{
// QName must be rdf:id
if (nsMapper.HasNamespace(attr.Namespace) &&
nsMapper.GetNamespaceUri(attr.Namespace).ToString().Equals(NamespaceMapper.RDF) &&
attr.LocalName.Equals("ID"))
{
// Must be a valid RDF ID
if (IsRdfID(attr.Value))
{
// OK
return(true);
}
else
{
// Invalid RDF ID so Error
throw ParserHelper.Error("The value '" + attr.Value + "' for rdf:ID is not valid, RDF IDs can only be valid NCNames as defined by the W3C XML Namespaces specification", attr);
}
}
else
{
return(false);
}
}
/// <summary>
/// Checks whether an attribute is an rdf:parseType attribute.
/// </summary>
/// <param name="attr">Attribute to Test.</param>
/// <param name="nsMapper">The namespace prefix mappings to use when expanding the namespace prefix of the attribute.</param>
/// <returns>True if is an rdf:parseType attribute.</returns>
public static bool IsParseTypeAttribute(AttributeEvent attr, INestedNamespaceMapper nsMapper)
{
return(nsMapper.HasNamespace(attr.Namespace) &&
nsMapper.GetNamespaceUri(attr.Namespace).ToString().Equals(NamespaceMapper.RDF) &&
attr.LocalName.Equals("parseType"));
}