arrange to create all stem dicts in one pass

src/index/indexer.cpp

@@ -250,11 +250,7 @@ bool ConfIndexer::createStemmingDatabases()
 	    if (find(langs.begin(), langs.end(), *it) == langs.end())
 		m_db.deleteStemDb(*it);
 	}
-	for (it = langs.begin(); it != langs.end(); it++) {
-	    if (m_updater && !m_updater->update(DbIxStatus::DBIXS_STEMDB, *it))
-		return false;
-	    m_db.createStemDb(*it);
-	}
+	m_db.createStemDbs(langs);
     }
     m_db.close();
     return true;
@@ -265,7 +261,7 @@ bool ConfIndexer::createStemDb(const string &lang)
     if (!m_db.open(Rcl::Db::DbUpd)) {
 	return false;
     }
-    return m_db.createStemDb(lang);
+    return m_db.createStemDbs(vector<string>(1, lang));
 }
 
 // The language for the aspell dictionary is handled internally by the aspell

src/rcldb/rcldb.cpp

@@ -1623,7 +1623,7 @@ bool Db::deleteStemDb(const string& lang)
     LOGDEB(("Db::deleteStemDb(%s)\n", lang.c_str()));
     if (m_ndb == 0 || m_ndb->m_isopen == false || !m_ndb->m_iswritable)
 	return false;
-    WritableStemDb db(m_ndb->xwdb);
+    XapWritableSynFamily db(m_ndb->xwdb, synFamStem);
     return db.deleteMember(lang);
 }
 
@@ -1633,16 +1633,15 @@ bool Db::deleteStemDb(const string& lang)
  * with documents indexed by a single term (the stem), and with the list of
  * parent terms in the document data.
  */
-bool Db::createStemDb(const string& lang)
+bool Db::createStemDbs(const vector<string>& langs)
 {
-    LOGDEB(("Db::createStemDb(%s)\n", lang.c_str()));
+    LOGDEB(("Db::createStemDbs\n"));
     if (m_ndb == 0 || m_ndb->m_isopen == false || !m_ndb->m_iswritable) {
 	LOGERR(("createStemDb: db not open or not writable\n"));
 	return false;
     }
 
-    WritableStemDb db(m_ndb->xwdb);
-    return db.createDb(lang);
+    return createExpansionDbs(m_ndb->xwdb, langs);
 }
 
 /**

src/rcldb/rcldb.h

@@ -181,7 +181,7 @@ class Db {
     bool purge();
 
     /** Create stem expansion database for given language. */
-    bool createStemDb(const string &lang);
+    bool createStemDbs(const std::vector<std::string> &langs);
     /** Delete stem expansion database for given language. */
     bool deleteStemDb(const string &lang);
 

src/rcldb/stemdb.cpp

@@ -35,6 +35,7 @@
 #include "rcldb.h"
 #include "rcldb_p.h"
 #include "synfamily.h"
+#include "unacpp.h"
 
 #include <iostream>
 
@@ -56,12 +57,19 @@ inline static bool p_notlowerascii(unsigned int c)
 /**
  * Create database of stem to parents associations for a given language.
  */
-bool WritableStemDb::createDb(const string& lang)
+bool createExpansionDbs(Xapian::WritableDatabase& wdb, 
+			const vector<string>& langs)
 {
-    LOGDEB(("StemDb::createDb(%s)\n", lang.c_str()));
+    LOGDEB(("StemDb::createExpansionDbs\n"));
     Chrono cron;
-    createMember(lang);
-    string prefix = entryprefix(lang);
+
+    vector<XapWritableSynFamily> stemdbs;
+    for (unsigned int i = 0; i < langs.size(); i++) {
+	stemdbs.push_back(XapWritableSynFamily(wdb, synFamStem));
+	stemdbs[i].deleteMember(langs[i]);
+	stemdbs[i].createMember(langs[i]);
+	stemdbs[i].setCurrentMemberName(langs[i]);
+    }
 
     // We walk the list of all terms, and stem each. We skip terms which
     // don't look like natural language.
@@ -73,10 +81,13 @@ bool WritableStemDb::createDb(const string& lang)
 
     string ermsg;
     try {
-        Xapian::Stem stemmer(lang);
+	vector<Xapian::Stem> stemmers;
+	for (unsigned int i = 0; i < langs.size(); i++) {
+	    stemmers.push_back(Xapian::Stem(langs[i]));
+	}
 
-        for (Xapian::TermIterator it = m_wdb.allterms_begin(); 
-	     it != m_wdb.allterms_end(); it++) {
+        for (Xapian::TermIterator it = wdb.allterms_begin(); 
+	     it != wdb.allterms_end(); it++) {
 	    // If the term has any non-lowercase 7bit char (that is,
             // numbers, capitals and punctuation) dont stem.
             string::iterator sit = (*it).begin(), eit = sit + (*it).length();
@@ -102,16 +113,19 @@ bool WritableStemDb::createDb(const string& lang)
 		continue;
 	    }
 
-            string stem = stemmer(*it);
-            LOGDEB2(("Db::createStemDb: word [%s], stem [%s]\n", (*it).c_str(),
-                     stem.c_str()));
-            if (stem == *it) {
-                ++stemconst;
-                continue;
-            }
-    
-	    m_wdb.add_synonym(prefix + stem, *it);
-	    ++allsyns;
+	    // Create stemming synonym for every lang
+	    for (unsigned int i = 0; i < langs.size(); i++) {
+		string stem = stemmers[i](*it);
+		if (stem == *it) {
+		    ++stemconst;
+		} else {
+		    stemdbs[i].addSynonym(stem, *it);
+		    LOGDEB0(("Db::createExpansiondbs: [%s] (%s) -> [%s]\n", 
+			     (*it).c_str(), langs[i].c_str(), stem.c_str()));
+		    ++allsyns;
+		}
+	    }
+
         }
     } XCATCHERROR(ermsg);
     if (!ermsg.empty()) {
@@ -119,7 +133,7 @@ bool WritableStemDb::createDb(const string& lang)
         return false;
     }
 
-    LOGDEB(("StemDb::createDb(%s): done: %.2f S\n", lang.c_str(), cron.secs()));
+    LOGDEB(("StemDb::createExpansionDbs: done: %.2f S\n", cron.secs()));
     LOGDEB(("StemDb::createDb: nostem %d stemconst %d allsyns %d\n", 
 	    nostem, stemconst, allsyns));
     return true;

src/rcldb/stemdb.h

@@ -76,14 +76,8 @@ private:
 		   std::vector<std::string>& result);
 };
 
-class WritableStemDb : public XapWritableSynFamily {
-public:
-    WritableStemDb(Xapian::WritableDatabase& xdb)
-	: XapWritableSynFamily(xdb, synFamStem)
-    {
-    }
-    bool createDb(const std::string& lang);
-};
+extern bool createExpansionDbs(Xapian::WritableDatabase& wdb, 
+			       const std::vector<std::string>& langs);
 
 }
 

src/rcldb/synfamily.cpp

@@ -144,6 +144,7 @@ bool XapWritableSynFamily::addSynonyms(const string& membername,
     return true;
 }
 
+
 }
 
 #else  // TEST_SYNFAMILY 
@@ -232,11 +233,11 @@ int main(int argc, char **argv)
 
     // We do stem only for now
     string familyname;
-    if (op_flags & (OPT_a|OPT_c)) {
-	cerr << "Accents and case not ready" << endl;
-	return 1;
+    if (op_flags & OPT_a) {
+	familyname = Rcl::synFamDiac;
+    } else if (op_flags &OPT_c) {
+	familyname = Rcl::synFamCase;
     } else {
-	op_flags |= OPT_s;
 	familyname = Rcl::synFamStem;
     }
     if ((op_flags & (OPT_l|OPT_L|OPT_D|OPT_e)) == 0)

src/rcldb/synfamily.h

@@ -35,7 +35,10 @@
 #include <string>
 #include <vector>
 
-#include "xapian.h"
+#include <xapian.h>
+
+#include "debuglog.h"
+#include "xmacros.h"
 
 namespace Rcl {
 
@@ -98,15 +101,38 @@ public:
 			     const std::string& term, 
 			     const std::vector<std::string>& trans);
 
+    // Need to call setCurrentMemberName before addSynonym ! 
+    // We don't check it, for speed
+    virtual void setCurrentMemberName(const std::string& nm)
+    {
+	m_currentPrefix = entryprefix(nm);
+    }
+    virtual bool addSynonym(const std::string& term, const std::string& trans)
+    {
+	std::string key = m_currentPrefix + term;
+	std::string ermsg;
+	try {
+	    m_wdb.add_synonym(key, trans);
+	} XCATCHERROR(ermsg);
+	if (!ermsg.empty()) {
+	    LOGERR(("XapSynFamily::addSynonym: xapian error %s\n", 
+		    ermsg.c_str()));
+	    return false;
+	}
+	return true;
+    }
+
 protected:
     Xapian::WritableDatabase m_wdb;
+    std::string m_currentPrefix;
 };
 
 
 //
 // Prefixes are centrally defined here to avoid collisions
 //
-// Stem expansion family prefix. The family member name is the language
+// Stem expansion family prefix. The family member name is the
+// language ("all" for Dia and Cse)
 static const std::string synFamStem("Stm");
 static const std::string synFamDiac("Dia");
 static const std::string synFamCase("Cse");

src/rcldb/xmacros.h

@@ -24,7 +24,7 @@
  catch (const Xapian::Error &e) {		   \
     MSG = e.get_msg();				   \
     if (MSG.empty()) MSG = "Empty error message";  \
- } catch (const string &s) {			   \
+ } catch (const std::string &s) {		   \
     MSG = s;					   \
     if (MSG.empty()) MSG = "Empty error message";  \
  } catch (const char *s) {			   \