public override void TrainFromQueries(params string[] queries)
{
//TODO: use the ParseQuery method here somehow as they are much the same
InParseMode = false;
var examples = new List <Example>();
foreach (var query in queries)
{
var tokeniser = new SparqlTokeniser(ParsingTextReader.Create(new StringReader(query)), SparqlQuerySyntax.Sparql_1_1);
var token = tokeniser.GetNextToken();
PredicateNet currentPrefix = null;
while (token != null && !(token is EOFToken))
{
token = tokeniser.GetNextToken();
if (token is PrefixToken)
{
var prefix = token.Value;
var ontology = new Uri(tokeniser.GetNextToken().Value);
currentPrefix = new PredicateNet(prefix, ontology, this.PrefixLoader);
Add(currentPrefix, true);
}
else
{
var w = token.Value.ToLower();
var words = w.Split(':');
var wordSuffix = words.Length > 1 ? ":" : "";
var offset = 0;
foreach (var word in words)
{
var fullWord = word + wordSuffix;
var node = Node(fullWord);
wordSuffix = "";
if (query.Trim().Length > token.StartPosition)
{
var partQuery = query.Substring(0, (token.StartPosition - 1) + offset).Trim();
var inputNode = Node(partQuery);
examples.Add(new Example(inputNode, fullWord));
offset = fullWord.Length;
}
}
}
}
}
Train(examples.ToArray());
InParseMode = true;
}
private void ParseQuery(string query)
{
nodes.Clear();
var tokeniser = new SparqlTokeniser(ParsingTextReader.Create(new StringReader(query)), SparqlQuerySyntax.Sparql_1_1);
var token = tokeniser.GetNextToken();
while (token != null && !(token is EOFToken))
{
try
{
token = tokeniser.GetNextToken();
if (token is PrefixDirectiveToken)
{
token = tokeniser.GetNextToken();
var prefix = token.Value;
var ontology = new Uri(tokeniser.GetNextToken().Value);
var prefixNode = new PredicateNet(prefix, ontology, this.PrefixLoader);
Add(prefixNode, true);
var linkToPrefix = new TokenNode(new Uri(R(token.Value.ToLower())), token);
nodes.Add(linkToPrefix);
}
else if (token is QNameToken)
{
var node = new TokenNode(new Uri(R(token.Value.ToLower().Replace(":", "_namespace"))), token);
var link = Node(R(token.Value.ToLower()));
nodes.Add(node);
Add(node, "link", link);
}
else
{
var node = new TokenNode(new Uri(R(token.Value.ToLower())), token);
nodes.Add(node);
}
}
catch (Exception ex)
{
CurrentError = ex;
return;
}
}
}
