internal override RdpPattern EmptyTextDeriv (MemoizationStore memo)
{
RdpPattern p = memo.EmptyTextDeriv (Child);
return p.PatternType == RelaxngPatternType.NotAllowed ?
p : p.Group (this.Choice (RdpEmpty.Instance));
}
internal override RdpPattern EmptyTextDeriv (MemoizationStore memo)
{
return memo.EmptyTextDeriv (LValue)
.Choice (memo.EmptyTextDeriv (RValue));
}
internal override RdpPattern EmptyTextDeriv (MemoizationStore memo)
{
RdpPattern p = memo.EmptyTextDeriv (LValue);
p = p.PatternType == RelaxngPatternType.NotAllowed ?
p : p.Group (RValue);
return LValue.Nullable ?
p.Choice (memo.EmptyTextDeriv (RValue)) : p;
}
