/**
* @param ve must be a <c>NumberEval</c>, <c>StringEval</c>, <c>BoolEval</c>, or <c>BlankEval</c>
* @return the Converted string value. never <c>null</c>
*/
public static String CoerceValueToString(ValueEval ve)
{
if (ve is StringValueEval)
{
StringValueEval sve = (StringValueEval)ve;
return(sve.StringValue);
}
if (ve is BlankEval)
{
return("");
}
throw new ArgumentException("Unexpected eval class (" + ve.GetType().Name + ")");
}
private Object GetText(ValueEval ve)
{
if (ve is StringValueEval)
{
StringValueEval sve = (StringValueEval)ve;
return(sve.StringValue);
}
if (ve == BlankEval.instance)
{
return("");
}
throw new InvalidOperationException("Unexpected value type ("
+ ve.GetType().Name + ")");
}
