/// <inheritdoc />
public BlankNode BlankSelf(ReadOnlySpan <char> label)
{
if (label.IsEmpty)
{
return(BlankSelf());
}
var valueString = BlankNode.ValueStringFromLabel(label);
var valueStringHash = string.GetHashCode(valueString);
var qry = _nodes
.Where(x => x.ValueStringHash == valueStringHash)
.OfType <BlankNode>()
.Where(x => x.IsSelfScoped());
BlankNode?found = null;
foreach (var item in qry)
{
if (valueString.SequenceEqual(item.ValueString))
{
found = item; break;
}
}
if (found is null)
{
Counter(null).SkipTo(TryReadLabelIndex(BlankGraphPrefix, label));
found = _linkNodeBuilder.NewSelfScoped(new string(valueString));
_nodes.Add(found);
}
return(found);
}
public void Normalize()
{
var m = new UriOrBlankMap();
var n1 = m.Create("x:n1");
var n2 = m.Create(" x:n1 ");
Assert.AreEqual(n1.ValueString, n2.ValueString, "trimmed");
var b1 = m.NewSelfScoped(" a-label");
var b2 = m.NewSelfScoped("a-label ");
Assert.AreEqual(b1.ValueString, b2.ValueString, "trimmed");
}