/// <summary>
/// Initializes a new instance of the <see cref="Triple"/> struct.
/// </summary>
public Triple(Node subject, IriNode predicate, Node obj)
: this()
{
Subject = subject;
Predicate = predicate;
Object = obj;
}
/// <summary>
/// Handles matched predicate
/// </summary>
public override void PredicateMatched(IriNode predicateNode)
{
Parser.State = new PredicateMatchedState(Parser, CurrentLine, _subjectNode, predicateNode);
}
/// <summary>
/// Initializes a new instance of the <see cref="PredicateMatchedState"/> class.
/// </summary>
public PredicateMatchedState(NQuadsParser parser, int currentLine, Node subjectNode, IriNode predicateNode)
: base(parser, currentLine)
{
_subjectNode = subjectNode;
_predicateNode = predicateNode;
}
bool TryReadQuad(string line, out Edge edge)
{
edge = null;
line = line.Trim();
if (String.IsNullOrEmpty(line) || line.StartsWith("#"))
{
return(false);
}
string temp = "";
INode subject;
if (TryReadIri(line, ref temp, ref line))
{
subject = new IriNode(new Iri(temp));
}
else if (TryReadBlankNode(line, ref temp, ref line))
{
subject = GetOrCreateBlankNode(temp);
}
else
{
return(false);
}
line = line.TrimStart();
INode predicate;
if (TryReadIri(line, ref temp, ref line))
{
predicate = new IriNode(new Iri(temp));
}
else
{
return(false);
}
line = line.TrimStart();
INode obj;
if (TryReadIri(line, ref temp, ref line))
{
obj = new IriNode(new Iri(temp));
}
else if (TryReadBlankNode(line, ref temp, ref line))
{
obj = GetOrCreateBlankNode(temp);
}
else if (line.StartsWith("\""))
{
string value = "", languageCode = "";
Iri dataType = null;
if (!TryReadLiteral(line, ref value, ref dataType, ref languageCode, ref line))
{
return(false);
}
if (dataType == null)
{
obj = new LiteralNode(value, languageCode);
}
else
{
obj = new LiteralNode(value, dataType);
}
}
else
{
return(false);
}
line = line.TrimStart();
INode context = null;
if (TryReadIri(line, ref temp, ref line))
{
context = new IriNode(new Iri(temp));
}
else if (TryReadBlankNode(line, ref temp, ref line))
{
context = GetOrCreateBlankNode(temp);
}
edge = new Edge(subject, predicate, obj, context);
return(true);
}
