[sql] Import reference version of SQLite 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/ext/fts3/fts3_icu.c

Index: third_party/sqlite/sqlite-src-3080704/ext/fts3/fts3_icu.c
diff --git a/third_party/sqlite/sqlite-src-3070603/ext/fts3/fts3_icu.c b/third_party/sqlite/sqlite-src-3080704/ext/fts3/fts3_icu.c
similarity index 96%
copy from third_party/sqlite/sqlite-src-3070603/ext/fts3/fts3_icu.c
copy to third_party/sqlite/sqlite-src-3080704/ext/fts3/fts3_icu.c
index 85390d3b065b5c422fb07d2bdd69614893f56ccf..52df8c7d8128e3f6e71bc0571653232eac06a9a5 100644
--- a/third_party/sqlite/sqlite-src-3070603/ext/fts3/fts3_icu.c
+++ b/third_party/sqlite/sqlite-src-3080704/ext/fts3/fts3_icu.c
@@ -10,10 +10,8 @@
 **
 *************************************************************************
 ** This file implements a tokenizer for fts3 based on the ICU library.
-** 
-** $Id: fts3_icu.c,v 1.3 2008/09/01 18:34:20 danielk1977 Exp $
 */
-
+#include "fts3Int.h"
 #if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
 #ifdef SQLITE_ENABLE_ICU
 
@@ -112,13 +110,16 @@ static int icuOpen(
 
   *ppCursor = 0;
 
-  if( nInput<0 ){
+  if( zInput==0 ){
+    nInput = 0;
+    zInput = "";
+  }else if( nInput<0 ){
     nInput = strlen(zInput);
   }
   nChar = nInput+1;
   pCsr = (IcuCursor *)sqlite3_malloc(
       sizeof(IcuCursor) +                /* IcuCursor */
-      nChar * sizeof(UChar) +            /* IcuCursor.aChar[] */
+      ((nChar+3)&~3) * sizeof(UChar) +   /* IcuCursor.aChar[] */
       (nChar+1) * sizeof(int)            /* IcuCursor.aOffset[] */
   );
   if( !pCsr ){
@@ -126,7 +127,7 @@ static int icuOpen(
   }
   memset(pCsr, 0, sizeof(IcuCursor));
   pCsr->aChar = (UChar *)&pCsr[1];
-  pCsr->aOffset = (int *)&pCsr->aChar[nChar];
+  pCsr->aOffset = (int *)&pCsr->aChar[(nChar+3)&~3];
 
   pCsr->aOffset[iOut] = iInput;
   U8_NEXT(zInput, iInput, nInput, c); 
@@ -198,7 +199,7 @@ static int icuNext(
 
     while( iStart<iEnd ){
       int iWhite = iStart;
-      U8_NEXT(pCsr->aChar, iWhite, pCsr->nChar, c);
+      U16_NEXT(pCsr->aChar, iWhite, pCsr->nChar, c);
       if( u_isspace(c) ){
         iStart = iWhite;
       }else{