public void AddMarker(string markerClassName)
{
if (children != null)
{
for (int i = 0; i < children.Count; i++)
{
FONode child = (FONode)children[i];
if (!child.MayPrecedeMarker())
{
throw new FonetException(
String.Format("A fo:marker must be an initial child of '{0}'", GetName()));
}
}
}
if (markerClassNames == null)
{
markerClassNames = new Hashtable();
markerClassNames.Add(markerClassName, String.Empty);
}
else if (!markerClassNames.ContainsKey(markerClassName))
{
markerClassNames.Add(markerClassName, String.Empty);
}
else
{
throw new FonetException(
String.Format("marker-class-name '{0}' already exists for this parent",
markerClassName));
}
}