/// <summary>
/// Processes/interprets an XML attribute. If an attribute isn't known to the class (<see cref="GetKnownAttributes"/>)
/// it's name and value are stored in the <see cref="OtherAttributes"/> dictionary. There's usually no need to override
/// this method, unless a child class needs to process the "unknown" attributes differently or has special requirements
/// when handling the attribute element itself.
/// </summary>
/// <param name="attribute">XML Attribute.</param>
public virtual void SetAttribute(Dictionary <string, Action <string, XAttribute> > knownAttributes, XAttribute attribute)
{
if (attribute == null)
{
throw new ArgumentNullException(nameof(attribute));
}
Action <string, XAttribute> setter;
if (knownAttributes != null && knownAttributes.TryGetValue(attribute.Name.LocalName, out setter) && setter != null)
{
setter(attribute.Value, attribute);
return;
}
if (otherAttributes == null)
{
otherAttributes = new Dictionary <string, string> (StringComparer.Ordinal);
}
if (otherAttributes.ContainsKey(attribute.Name.LocalName))
{
Logger.Warning($"Attribute '{attribute.Name.LocalName}' redefined for element {attribute.Parent.Name} at {DocumentPath}[{attribute.GetLineInfo ()}]");
}
otherAttributes [attribute.Name.LocalName] = attribute.Value;
}
