static public void AddFragments(this FragmentLibrary item, IEnumerable <CmlFragment> to_add)
{
to_add.Process(f => item.AddFragment(f));
}
static public void AddFragment(this FragmentLibrary item, string name, string text)
{
item.AddFragment(
new CmlFragment_Entity(name, CmlEntity.DOMify(text))
);
}