Put the dict_ja and _zh data in files instead of code for iOS

Map the file(s) into memory on demand. The executable file of an app
needs to be as small as possible. Including additional data files in
an app bundle is fine.

Change-Id: Ife9bfe99a2cf0473d459f38f50dfa3304b39e282

1 files changed, 46 insertions, 30 deletions

diff --git a/i18npool/source/breakiterator/xdictionary.cxx b/i18npool/source/breakiterator/xdictionary.cxx
index 4cb51f9b5439..390b2cd7dcc4 100644
--- a/i18npool/source/breakiterator/xdictionary.cxx
+++ b/i18npool/source/breakiterator/xdictionary.cxx
@@ -17,28 +17,22 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <config_folders.h>
 
-// xdictionary.cpp: implementation of the xdictionary class.
-
-
-
-
+#include <osl/file.h>
 #include <rtl/ustrbuf.hxx>
-
+#include <rtl/bootstrap.hxx>
 #include <com/sun/star/i18n/WordType.hpp>
 #include <xdictionary.hxx>
 #include <unicode/uchar.h>
 #include <string.h>
 #include <breakiteratorImpl.hxx>
 
-
-// Construction/Destruction
-
-
-
 namespace com { namespace sun { namespace star { namespace i18n {
 
-#ifndef DISABLE_DYNLOADING
+#ifdef DICT_JA_ZH_IN_DATAFILE
+
+#elif !defined DISABLE_DYNLOADING
 
 extern "C" { static void SAL_CALL thisModule() {} }
 
@@ -74,8 +68,44 @@ xdictionary::xdictionary(const sal_Char *lang) :
     boundary(),
     japaneseWordBreak( sal_False )
 {
-    index1 = 0;
-#ifndef DISABLE_DYNLOADING
+    existMark = NULL;
+    index1 = NULL;
+    index2 = NULL;
+    lenArray = NULL;
+    dataArea = NULL;
+
+#ifdef DICT_JA_ZH_IN_DATAFILE
+
+    if( strcmp( lang, "ja" ) == 0 || strcmp( lang, "zh" ) == 0 )
+    {
+        OUString sUrl( "$BRAND_BASE_DIR/" LIBO_SHARE_FOLDER "/dict_" );
+        rtl::Bootstrap::expandMacros(sUrl);
+
+        if( strcmp( lang, "ja" ) == 0 )
+            sUrl += "ja.data";
+        else if( strcmp( lang, "zh" ) == 0 )
+            sUrl += "zh.data";
+
+        oslFileHandle aFileHandle;
+        sal_uInt64 nFileSize;
+        char *pMapping;
+        if( osl_openFile( sUrl.pData, &aFileHandle, osl_File_OpenFlag_Read ) == osl_File_E_None &&
+            osl_getFileSize( aFileHandle, &nFileSize) == osl_File_E_None &&
+            osl_mapFile( aFileHandle, (void **) &pMapping, nFileSize, 0, osl_File_MapFlag_RandomAccess ) == osl_File_E_None )
+        {
+            // We have the offsets to the parts of the file at its end, see gendict.cxx
+            sal_Int64 *pEOF = (sal_Int64*)(pMapping + nFileSize);
+
+            existMark = (sal_uInt8*) (pMapping + pEOF[-1]);
+            index2 = (sal_Int32*) (pMapping + pEOF[-2]);
+            index1 = (sal_Int16*) (pMapping + pEOF[-3]);
+            lenArray = (sal_Int32*) (pMapping + pEOF[-4]);
+            dataArea = (sal_Unicode*) (pMapping + pEOF[-5]);
+        }
+    }
+
+#elif !defined DISABLE_DYNLOADING
+
 #ifdef SAL_DLLPREFIX
     OUStringBuffer aBuf( strlen(lang) + 7 + 6 );    // mostly "lib*.so" (with * == dict_zh)
     aBuf.appendAscii( SAL_DLLPREFIX );
@@ -97,16 +127,9 @@ xdictionary::xdictionary(const sal_Char *lang) :
         func = (sal_IntPtr(*)()) osl_getFunctionSymbol( hModule, OUString("getDataArea").pData );
         dataArea = (sal_Unicode*) (*func)();
     }
-    else
-    {
-        existMark = NULL;
-        index1 = NULL;
-        index2 = NULL;
-        lenArray = NULL;
-        dataArea = NULL;
-    }
 
 #else
+
     if( strcmp( lang, "ja" ) == 0 ) {
         existMark = getExistMark_ja();
         index1 = getIndex1_ja();
@@ -121,14 +144,7 @@ xdictionary::xdictionary(const sal_Char *lang) :
         lenArray = getLenArray_zh();
         dataArea = getDataArea_zh();
     }
-    else
-    {
-        existMark = NULL;
-        index1 = NULL;
-        index2 = NULL;
-        lenArray = NULL;
-        dataArea = NULL;
-    }
+
 #endif
 
     for (sal_Int32 i = 0; i < CACHE_MAX; i++)