public static EdgeStatement EdgeBetweenNodes(NodeStatement.NodeID from, NodeStatement.NodeID to)
{
EdgeStatement edge = new EdgeStatement();
edge.nodeID = from;
edge.rhs = new EdgeRHS();
edge.rhs.nodeID = to;
return edge;
}
// returns a list of statements because we may need to declare node attribute statments
// or other things to describe the WME
public IEnumerable<Statement> GetStatement()
{
List<Statement> statements = new List<Statement>();
if (IsIdentifier())
{
// add an edge statement
EdgeStatement statement = EdgeStatement.EdgeBetweenNodes(ID, value);
statement.attributes.Add(new StringAttribute("label", attribute.Replace("-", "_")));
statements.Add(statement);
}
else
{
// get a new id for the value
string newID = getNewID();
// make edge statement
EdgeStatement statement = EdgeStatement.EdgeBetweenNodes(ID, newID);
statement.attributes.Add(new StringAttribute("label", attribute.Replace("-", "_")));
statements.Add(statement);
// add a node attribute statement to label the child
NodeStatement nodeStatement = new NodeStatement(newID);
nodeStatement.attributes.Add(new StringAttribute("label", value.Replace("-", "_")));
statements.Add(nodeStatement);
}
return statements;
}
