/// <summary> /// Requests that the document auto-detect its syntax /// </summary> public void AutoDetectSyntax() { if (this._filename != null && !this._filename.Equals(String.Empty)) { try { //Try filename based syntax detection MimeTypeDefinition def = MimeTypesHelper.GetDefinitionsByFileExtension(MimeTypesHelper.GetTrueFileExtension(this._filename)).FirstOrDefault(); if (def != null) { this.Syntax = def.SyntaxName.GetSyntaxName(); return; } } catch (RdfParserSelectionException) { //Ignore and use string based detection instead } } //Otherwise try and use string based detection //First take a guess at it being a SPARQL Results format String text = this.Text; try { ISparqlResultsReader resultsReader = StringParser.GetResultSetParser(text); this.Syntax = resultsReader.GetSyntaxName(); } catch (RdfParserSelectionException) { //Then see whether it may be a SPARQL query if (text.Contains("SELECT") || text.Contains("CONSTRUCT") || text.Contains("DESCRIBE") || text.Contains("ASK")) { //Likely a SPARQL Query this.Syntax = "SparqlQuery11"; } else { //Then take a guess at it being a RDF format try { IRdfReader rdfReader = StringParser.GetParser(text); this.Syntax = rdfReader.GetSyntaxName(); } catch (RdfParserSelectionException) { //Finally take a guess at it being a RDF Dataset format IStoreReader datasetReader = StringParser.GetDatasetParser(text); this.Syntax = datasetReader.GetSyntaxName(); } } } }