SERVER-380: Experimental text search indexing

1 files changed, 80 insertions, 0 deletions

diff --git a/src/mongo/db/fts/fts_query.h b/src/mongo/db/fts/fts_query.h
new file mode 100644
index 00000000000..7022760b3a7
--- /dev/null
+++ b/src/mongo/db/fts/fts_query.h
@@ -0,0 +1,80 @@
+// fts_query.h
+
+/**
+*    Copyright (C) 2012 10gen Inc.
+*
+*    This program is free software: you can redistribute it and/or  modify
+*    it under the terms of the GNU Affero General Public License, version 3,
+*    as published by the Free Software Foundation.
+*
+*    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 Affero General Public License for more details.
+*
+*    You should have received a copy of the GNU Affero General Public License
+*    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include "mongo/base/status.h"
+#include "mongo/db/fts/stemmer.h"
+#include "mongo/db/fts/stop_words.h"
+#include "mongo/platform/unordered_set.h"
+#include "mongo/util/stringutils.h"
+
+namespace mongo {
+
+    namespace fts {
+
+        using std::string;
+        using std::vector;
+        using std::set;
+
+        class FTSQuery {
+
+        public:
+            Status parse(const string& query, const string& language);
+
+            const vector<string>& getTerms() const { return _terms; }
+            const unordered_set<string>& getNegatedTerms() const { return _negatedTerms; }
+
+            const vector<string>& getPhr() const { return _phrases; }
+            const vector<string>& getNegatedPhr() const { return _negatedPhrases; }
+
+            /**
+             * @return true if any negations or phrase + or -
+             */
+            bool hasNonTermPieces() const {
+                return
+                    _negatedTerms.size() > 0 ||
+                    _phrases.size() > 0 ||
+                    _negatedPhrases.size() > 0;
+            }
+
+            string getSearch() const { return _search; }
+            string getLanguage() const { return _language; }
+
+            string toString() const;
+
+            string debugString() const;
+
+        protected:
+            string _search;
+            string _language;
+            vector<string> _terms;
+            unordered_set<string> _negatedTerms;
+            vector<string> _phrases;
+            vector<string> _negatedPhrases;
+
+        private:
+            void _addTerm( const StopWords* sw, Stemmer& stemmer, const string& term, bool negated );
+        };
+
+    }
+}
+