/// <summary>
/// Called during Velocity merge before a reference value will
/// be inserted into the output stream.
/// </summary>
/// <param name="referenceStack">the stack of objects used to reach this reference</param>
/// <param name="reference">reference from template about to be inserted</param>
/// <param name="value"> value about to be inserted (after toString() )</param>
/// <returns>
/// Object on which toString() should be called for output.
/// </returns>
internal Object ReferenceInsert(Stack referenceStack, String reference, Object value)
{
if (ReferenceInsertion != null)
{
ReferenceInsertionEventArgs args = new ReferenceInsertionEventArgs(referenceStack, reference, value);
ReferenceInsertion(this, args);
value = args.NewValue;
}
return value;
}