From af8b82332e1f8b9d09192c576b74310bb65ec7a8 Mon Sep 17 00:00:00 2001
From: Jean-Francois Dockes <jfd@recoll.org>
Date: Tue, 19 Feb 2013 16:11:15 +0100
Subject: [PATCH] minor opt: avoid walking allterms if not needed: no stemlangs
 + stripchars

---
 src/rcldb/expansiondbs.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/rcldb/expansiondbs.cpp b/src/rcldb/expansiondbs.cpp
index 742f9b67..3de4a964 100644
--- a/src/rcldb/expansiondbs.cpp
+++ b/src/rcldb/expansiondbs.cpp
@@ -45,6 +45,15 @@ bool createExpansionDbs(Xapian::WritableDatabase& wdb,
 
     // Erase and recreate all the expansion groups
 
+    // If langs is empty and we don't need casediac expansion, then no need to
+    // walk the big list
+    if (langs.empty()) {
+#ifndef RCL_INDEX_STRIPCHARS
+	if (o_index_stripchars)
+#endif	    
+	    return true;
+    }
+
     // Stem dbs
     vector<XapWritableComputableSynFamMember> stemdbs;
     // Note: tried to make this to work with stack-allocated objects, couldn't.