private string valToString(HVal val)
{
if (val == null)
{
return("");
}
if (val == HMarker.VAL)
{
return("\u2713");
}
if (val is HRef)
{
HRef href = (HRef)val;
string s = "@" + href.val;
if (href.disSet)
{
s += " " + href.display();
}
return(s);
}
return(val.ToString());
}