cos-search.cxx
changeset 0 56281d90869c
child 3 38269b62d856
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cos-search.cxx	Sat Feb 12 13:45:55 2011 +0300
@@ -0,0 +1,88 @@
+/* cos-search.cxx:
+ *   based on quickstartsearch.cc: Simplest possible searcher
+ *
+ * ----START-LICENCE----
+ * Copyright 1999,2000,2001 BrightStation PLC
+ * Copyright 2003,2004 Olly Betts
+ * Copyright 2010 Stiletto <blasux@blasux.ru>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
+ * USA
+ */
+
+#include <xapian.h>
+#include <iostream>
+#include <cstdlib>
+#include <algorithm>
+#include <pcrecpp.h>
+
+using namespace std;
+
+int main(int argc, char **argv)
+{
+    // Simplest possible options parsing: we just require two or more
+    // parameters.
+    if (argc < 3) {
+        cout << "usage: " << argv[0] <<
+                " <path to database> <search query>" << endl;
+        exit(1);
+    }
+
+    // Catch any Xapian::Error exceptions thrown
+    try {
+	Xapian::Database db(argv[1]);
+        Xapian::Enquire enquire(db);
+        Xapian::QueryParser qp;
+        string qstring(argv[2]);
+
+        pcrecpp::RE prereg("([A-Za-z0-9_-]+):");
+        pcrecpp::StringPiece input(qstring);  // Wrap in a StringPiece
+
+        string var;
+        while (prereg.Consume(&input, &var)) {
+            string upvar = var+"=";
+            std::transform(var.begin(), var.end(), var.begin(), ::tolower);
+            std::transform(upvar.begin(), upvar.end(), upvar.begin(), ::toupper);
+            cout << var << upvar << endl;
+            qp.add_boolean_prefix(var,upvar);
+        }
+
+
+        // Build the query object
+        Xapian::Query query = qp.parse_query(qstring); //Xapian::Query::OP_OR, argv + 2, argv + argc);
+        
+        cout << "Performing query `" << query.get_description() << "'" << endl;
+
+        // Give the query object to the enquire session
+        enquire.set_query(query);
+
+        // Get the top 10 results of the query
+        Xapian::MSet matches = enquire.get_mset(0, db.get_doccount());
+
+        // Display the results
+        cout << matches.size() << " results found" << endl;
+
+        for (Xapian::MSetIterator i = matches.begin();
+             i != matches.end();
+             ++i) {
+            Xapian::Document doc = i.get_document();
+            cout << "Document ID " << *i << "\t" <<
+                    i.get_percent() << "% [" <<
+                    doc.get_data() << "]" << endl;
+        }
+    } catch(const Xapian::Error &error) {
+        cout << "Exception: "  << error.get_msg() << endl;
+    }
+}