public static void Main(string[] argv) { // We require at least two command line arguments. if (argv.Length < 2) { Console.Error.WriteLine("Usage: SimpleSearch PATH_TO_DATABASE QUERY"); Environment.Exit(1); } try { // Open the database for searching. Xapian.Database database = new Xapian.Database(argv[0]); // Start an enquire session. Xapian.Enquire enquire = new Xapian.Enquire(database); // Combine the rest of the command line arguments with spaces // between them, so that simple queries don't have to be quoted at // the shell level. string query_string = argv[1]; for (int i = 2; i < argv.Length; ++i) { query_string += ' '; query_string += argv[i]; } // Parse the query string to produce a Xapian::Query object. Xapian.QueryParser qp = new Xapian.QueryParser(); Xapian.Stem stemmer = new Xapian.Stem("english"); qp.SetStemmer(stemmer); qp.SetDatabase(database); qp.SetStemmingStrategy(Xapian.QueryParser.stem_strategy.STEM_SOME); Xapian.Query query = qp.ParseQuery(query_string); Console.WriteLine("Parsed query is: " + query.GetDescription()); // Find the top 10 results for the query. enquire.SetQuery(query); Xapian.MSet matches = enquire.GetMSet(0, 10); // Display the results. Console.WriteLine("{0} results found.", matches.GetMatchesEstimated()); Console.WriteLine("Matches 1-{0}:", matches.Size()); Xapian.MSetIterator m = matches.Begin(); while (m != matches.End()) { Console.WriteLine("{0}: {1}% docid={2} [{3}]\n", m.GetRank() + 1, m.GetPercent(), m.GetDocId(), m.GetDocument().GetData()); ++m; } } catch (Exception e) { Console.Error.WriteLine("Exception: " + e.ToString()); Environment.Exit(1); } }
public static void Main() { try { // Test the version number reporting functions give plausible // results. string v = ""; v += Xapian.Version.Major(); v += "."; v += Xapian.Version.Minor(); v += "."; v += Xapian.Version.Revision(); string v2 = Xapian.Version.String(); if (v != v2) { System.Console.WriteLine("Unexpected version output (" + v + " != " + v2 + ")"); System.Environment.Exit(1); } Xapian.Stem stem = new Xapian.Stem("english"); Xapian.Document doc = new Xapian.Document(); // Currently SWIG doesn't generate zero-byte clean code for // transferring strings between C# and C++. /* * doc.SetData("a\0b"); * if (doc.GetData() == "a") { * System.Console.WriteLine("GetData+SetData truncates at a zero byte"); * System.Environment.Exit(1); * } * if (doc.GetData() != "a\0b") { * System.Console.WriteLine("GetData+SetData doesn't transparently handle a zero byte"); * System.Environment.Exit(1); * } */ doc.SetData("is there anybody out there?"); doc.AddTerm("XYzzy"); doc.AddPosting(stem.Apply("is"), 1); doc.AddPosting(stem.Apply("there"), 2); doc.AddPosting(stem.Apply("anybody"), 3); doc.AddPosting(stem.Apply("out"), 4); doc.AddPosting(stem.Apply("there"), 5); Xapian.WritableDatabase db = Xapian.InMemory.Open(); db.AddDocument(doc); if (db.GetDocCount() != 1) { System.Environment.Exit(1); } if (doc.TermListCount() != 5) { System.Environment.Exit(1); } int count = 0; Xapian.TermIterator i = doc.TermListBegin(); while (i != doc.TermListEnd()) { ++count; ++i; } if (count != 5) { System.Environment.Exit(1); } // Check exception handling for Xapian::DocNotFoundError. try { Xapian.Document doc2 = db.GetDocument(2); System.Console.WriteLine("Retrieved non-existent document: " + doc2.ToString()); System.Environment.Exit(1); } catch (System.Exception e) { // We expect DocNotFoundError if (e.Message.Substring(0, 16) != "DocNotFoundError") { System.Console.WriteLine("Unexpected exception from accessing non-existent document: " + e.Message); System.Environment.Exit(1); } } // Check QueryParser parsing error. try { Xapian.QueryParser qp = new Xapian.QueryParser(); qp.ParseQuery("test AND"); System.Console.WriteLine("Successfully parsed bad query"); System.Environment.Exit(1); } catch (System.Exception e) { if (e.Message != "QueryParserError: Syntax: <expression> AND <expression>") { System.Console.WriteLine("Exception string not as expected, got: '" + e.Message + "'"); System.Environment.Exit(1); } } { Xapian.QueryParser qp = new Xapian.QueryParser(); // FIXME: It would be better if the (uint) cast wasn't required // here. qp.ParseQuery("hello world", (uint)Xapian.QueryParser.feature_flag.FLAG_BOOLEAN); } if (Xapian.Query.MatchAll.GetDescription() != "Xapian::Query(<alldocuments>)") { System.Console.WriteLine("Unexpected Query.MatchAll.toString()"); System.Environment.Exit(1); } if (Xapian.Query.MatchNothing.GetDescription() != "Xapian::Query()") { System.Console.WriteLine("Unexpected Query.MatchNothing.toString()"); System.Environment.Exit(1); } // Check that OP_ELITE_SET works (in 0.9.6 and earlier it had the // wrong value in C#). try { Xapian.Query foo = new Xapian.Query(Xapian.Query.op.OP_OR, "hello", "world"); Xapian.Query foo2 = new Xapian.Query(Xapian.Query.op.OP_ELITE_SET, foo, foo); foo = foo2; // Avoid "unused variable" warning. } catch (System.Exception e) { System.Console.WriteLine("Using OP_ELITE_SET cause exception '" + e.Message + "'"); System.Environment.Exit(1); } // Feature test for MatchDecider. doc = new Xapian.Document(); doc.SetData("Two"); doc.AddPosting(stem.Apply("out"), 1); doc.AddPosting(stem.Apply("source"), 2); doc.AddValue(0, "yes"); db.AddDocument(doc); Xapian.Query query = new Xapian.Query(stem.Apply("out")); Xapian.Enquire enquire = new Xapian.Enquire(db); enquire.SetQuery(query); Xapian.MSet mset = enquire.GetMSet(0, 10, null, new TestMatchDecider()); if (mset.Size() != 1) { System.Console.WriteLine("MatchDecider found " + mset.Size().ToString() + " documents, expected 1"); System.Environment.Exit(1); } if (mset.GetDocId(0) != 2) { System.Console.WriteLine("MatchDecider mset has wrong docid in"); System.Environment.Exit(1); } // Test setting and getting metadata if (db.GetMetadata("Foo") != "") { System.Console.WriteLine("db.GetMetadata(\"Foo\") returned wrong value \"" + db.GetMetadata("Foo") + "\" - expected \"\""); System.Environment.Exit(1); } db.SetMetadata("Foo", "Foo"); if (db.GetMetadata("Foo") != "Foo") { System.Console.WriteLine("db.GetMetadata(\"Foo\") returned wrong value \"" + db.GetMetadata("Foo") + "\" - expected \"Foo\""); System.Environment.Exit(1); } // Test OP_SCALE_WEIGHT and corresponding constructor Xapian.Query query4 = new Xapian.Query(Xapian.Query.op.OP_SCALE_WEIGHT, new Xapian.Query("foo"), 5.0); if (query4.GetDescription() != "Xapian::Query(5 * foo)") { System.Console.WriteLine("Unexpected query4.GetDescription()"); System.Environment.Exit(1); } } catch (System.Exception e) { System.Console.WriteLine("Exception: " + e.ToString()); System.Environment.Exit(1); } }
public static void Main(string[] argv) { // We require at least two command line arguments. if (argv.Length < 2) { Console.Error.WriteLine("Usage: SimpleExpand PATH_TO_DATABASE QUERY [-- [DOCID...]]"); Environment.Exit(1); } try { // Open the database for searching. Xapian.Database database = new Xapian.Database(argv[0]); // Start an enquire session. Xapian.Enquire enquire = new Xapian.Enquire(database); // Create an RSet to add the listed docids to. Xapian.RSet rset = new Xapian.RSet(); // Combine command line arguments up to "--" with spaces between // them, so that simple queries don't have to be quoted at the // shell level. string query_string = argv[1]; for (int i = 2; i < argv.Length; ++i) { if (argv[i] == "--") { while (++i < argv.Length) { rset.AddDocument(Convert.ToUInt32(argv[i])); } break; } query_string += ' '; query_string += argv[i]; } // Parse the query string to produce a Xapian::Query object. Xapian.QueryParser qp = new Xapian.QueryParser(); Xapian.Stem stemmer = new Xapian.Stem("english"); qp.SetStemmer(stemmer); qp.SetDatabase(database); qp.SetStemmingStrategy(Xapian.QueryParser.stem_strategy.STEM_SOME); Xapian.Query query = qp.ParseQuery(query_string); Console.WriteLine("Parsed query is: " + query.GetDescription()); // Find the top 10 results for the query. enquire.SetQuery(query); Xapian.MSet matches = enquire.GetMSet(0, 10, rset); // Display the results. Console.WriteLine("{0} results found.", matches.GetMatchesEstimated()); Console.WriteLine("Matches 1-{0}:", matches.Size()); Xapian.MSetIterator m = matches.Begin(); while (m != matches.End()) { Console.WriteLine("{0}: {1}% docid={2} [{3}]\n", m.GetRank() + 1, m.GetPercent(), m.GetDocId(), m.GetDocument().GetData()); ++m; } // If no relevant docids were given, invent an RSet containing the // top 5 matches (or all the matches if there are less than 5). if (rset.Empty()) { int c = 5; Xapian.MSetIterator i = matches.Begin(); while (c-- > 0 && i != matches.End()) { rset.AddDocument(i.GetDocId()); ++i; } } // Generate an ESet containing terms that the user might want to // add to the query. Xapian.ESet eset = enquire.GetESet(10, rset); Console.WriteLine(eset.Size()); // List the terms. for (Xapian.ESetIterator t = eset.Begin(); t != eset.End(); ++t) { Console.WriteLine("{0}: weight = {1}", t.GetTerm(), t.GetWeight()); } } catch (Exception e) { Console.Error.WriteLine("Exception: " + e.ToString()); Environment.Exit(1); } }
public static void Main() { try { // Test the version number reporting functions give plausible // results. string v = ""; v += Xapian.Version.Major(); v += "."; v += Xapian.Version.Minor(); v += "."; v += Xapian.Version.Revision(); string v2 = Xapian.Version.String(); if (v != v2) { System.Console.WriteLine("Unexpected version output (" + v + " != " + v2 + ")"); System.Environment.Exit(1); } Xapian.Stem stem = new Xapian.Stem("english"); Xapian.Document doc = new Xapian.Document(); // Currently SWIG doesn't generate zero-byte clean code for // transferring strings between C# and C++. /* doc.SetData("a\0b"); if (doc.GetData() == "a") { System.Console.WriteLine("GetData+SetData truncates at a zero byte"); System.Environment.Exit(1); } if (doc.GetData() != "a\0b") { System.Console.WriteLine("GetData+SetData doesn't transparently handle a zero byte"); System.Environment.Exit(1); } */ doc.SetData("is there anybody out there?"); doc.AddTerm("XYzzy"); doc.AddPosting(stem.Apply("is"), 1); doc.AddPosting(stem.Apply("there"), 2); doc.AddPosting(stem.Apply("anybody"), 3); doc.AddPosting(stem.Apply("out"), 4); doc.AddPosting(stem.Apply("there"), 5); Xapian.WritableDatabase db = Xapian.InMemory.Open(); db.AddDocument(doc); if (db.GetDocCount() != 1) { System.Environment.Exit(1); } if (doc.TermListCount() != 5) { System.Environment.Exit(1); } int count = 0; Xapian.TermIterator i = doc.TermListBegin(); while (i != doc.TermListEnd()) { ++count; ++i; } if (count != 5) { System.Environment.Exit(1); } // Check exception handling for Xapian::DocNotFoundError. try { Xapian.Document doc2 = db.GetDocument(2); System.Console.WriteLine("Retrieved non-existent document: " + doc2.ToString()); System.Environment.Exit(1); } catch (System.Exception e) { // We expect DocNotFoundError if (e.Message.Substring(0, 16) != "DocNotFoundError") { System.Console.WriteLine("Unexpected exception from accessing non-existent document: " + e.Message); System.Environment.Exit(1); } } // Check QueryParser parsing error. try { Xapian.QueryParser qp = new Xapian.QueryParser(); qp.ParseQuery("test AND"); System.Console.WriteLine("Successfully parsed bad query"); System.Environment.Exit(1); } catch (System.Exception e) { if (e.Message != "QueryParserError: Syntax: <expression> AND <expression>") { System.Console.WriteLine("Exception string not as expected, got: '" + e.Message + "'"); System.Environment.Exit(1); } } { Xapian.QueryParser qp = new Xapian.QueryParser(); // FIXME: It would be better if the (uint) cast wasn't required // here. qp.ParseQuery("hello world", (uint)Xapian.QueryParser.feature_flag.FLAG_BOOLEAN); } if (Xapian.Query.MatchAll.GetDescription() != "Xapian::Query(<alldocuments>)") { System.Console.WriteLine("Unexpected Query.MatchAll.toString()"); System.Environment.Exit(1); } if (Xapian.Query.MatchNothing.GetDescription() != "Xapian::Query()") { System.Console.WriteLine("Unexpected Query.MatchNothing.toString()"); System.Environment.Exit(1); } // Check that OP_ELITE_SET works (in 0.9.6 and earlier it had the // wrong value in C#). try { Xapian.Query foo = new Xapian.Query(Xapian.Query.op.OP_OR, "hello", "world"); Xapian.Query foo2 = new Xapian.Query(Xapian.Query.op.OP_ELITE_SET, foo, foo); foo = foo2; // Avoid "unused variable" warning. } catch (System.Exception e) { System.Console.WriteLine("Using OP_ELITE_SET cause exception '" + e.Message + "'"); System.Environment.Exit(1); } // Feature test for MatchDecider. doc = new Xapian.Document(); doc.SetData("Two"); doc.AddPosting(stem.Apply("out"), 1); doc.AddPosting(stem.Apply("source"), 2); doc.AddValue(0, "yes"); db.AddDocument(doc); Xapian.Query query = new Xapian.Query(stem.Apply("out")); Xapian.Enquire enquire = new Xapian.Enquire(db); enquire.SetQuery(query); Xapian.MSet mset = enquire.GetMSet(0, 10, null, new TestMatchDecider()); if (mset.Size() != 1) { System.Console.WriteLine("MatchDecider found " + mset.Size().ToString() + " documents, expected 1"); System.Environment.Exit(1); } if (mset.GetDocId(0) != 2) { System.Console.WriteLine("MatchDecider mset has wrong docid in"); System.Environment.Exit(1); } mset = enquire.GetMSet(0, 10); for (Xapian.MSetIterator m = mset.Begin(); m != mset.End(); m++) { // In Xapian 1.2.6 and earlier, the iterator would become // eligible for garbage collection after being advanced. // It didn't actually get garbage collected often, but when // it did, it caused a crash. Here we force a GC run to make // this issue manifest if it is present. System.GC.Collect(); System.GC.WaitForPendingFinalizers(); } // Test setting and getting metadata if (db.GetMetadata("Foo") != "") { System.Console.WriteLine("db.GetMetadata(\"Foo\") returned wrong value \"" + db.GetMetadata("Foo") + "\" - expected \"\""); System.Environment.Exit(1); } db.SetMetadata("Foo", "Foo"); if (db.GetMetadata("Foo") != "Foo") { System.Console.WriteLine("db.GetMetadata(\"Foo\") returned wrong value \"" + db.GetMetadata("Foo") + "\" - expected \"Foo\""); System.Environment.Exit(1); } // Test OP_SCALE_WEIGHT and corresponding constructor Xapian.Query query4 = new Xapian.Query(Xapian.Query.op.OP_SCALE_WEIGHT, new Xapian.Query("foo"), 5.0); if (query4.GetDescription() != "Xapian::Query(5 * foo)") { System.Console.WriteLine("Unexpected query4.GetDescription()"); System.Environment.Exit(1); } } catch (System.Exception e) { System.Console.WriteLine("Exception: " + e.ToString()); System.Environment.Exit(1); } }