ICU-64232.0.1.tar.gz

[apple/icu.git] / icuSources / layout / ScriptAndLanguage.cpp

diff --git a/icuSources/layout/ScriptAndLanguage.cpp b/icuSources/layout/ScriptAndLanguage.cpp
deleted file mode 100644 (file)
index c7818d1..0000000
--- a/icuSources/layout/ScriptAndLanguage.cpp
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
- *
- */
-
-#include "LETypes.h"
-#include "OpenTypeTables.h"
-#include "OpenTypeUtilities.h"
-#include "ScriptAndLanguage.h"
-#include "LESwaps.h"
-
-U_NAMESPACE_BEGIN
-
-LEReferenceTo<LangSysTable> ScriptTable::findLanguage(const LETableReference& base, LETag languageTag, LEErrorCode &success, le_bool exactMatch) const
-{
-    le_uint16 count = SWAPW(langSysCount);
-    Offset langSysTableOffset = exactMatch? 0 : SWAPW(defaultLangSysTableOffset);
-
-    if (count > 0) {
-      LEReferenceToArrayOf<TagAndOffsetRecord> langSysRecords(base, success, langSysRecordArray, count);
-      Offset foundOffset =
-        OpenTypeUtilities::getTagOffset(languageTag, langSysRecords, success);
-      
-      if (foundOffset != 0 && LE_SUCCESS(success)) {
-        langSysTableOffset = foundOffset;
-      }
-    }
-    
-    if (langSysTableOffset != 0) {
-      return LEReferenceTo<LangSysTable>(base, success, langSysTableOffset);
-    }
-
-    return LEReferenceTo<LangSysTable>();
-}
-
-LEReferenceTo<ScriptTable> ScriptListTable::findScript(const LETableReference &base, LETag scriptTag, LEErrorCode &success) const
-{
-    if (LE_FAILURE(success) ) {
-      return LEReferenceTo<ScriptTable>(); // get out
-    }
-    /*
-     * There are some fonts that have a large, bogus value for scriptCount. To try
-     * and protect against this, we use the offset in the first scriptRecord,
-     * which we know has to be past the end of the scriptRecordArray, to compute
-     * a value which is greater than or equal to the actual script count.
-     *
-     * Note: normally, the first offset will point to just after the scriptRecordArray,
-     * but there's no guarantee of this, only that it's *after* the scriptRecordArray.
-     * Because of this, a binary serach isn't safe, because the new count may include
-     * data that's not actually in the scriptRecordArray and hence the array will appear
-     * to be unsorted.
-     */
-    le_uint16 count = SWAPW(scriptCount);
-
-    if (count == 0) {
-      return LEReferenceTo<ScriptTable>(); // no items, no search
-    }
-    
-    // attempt to construct a ref with at least one element
-    LEReferenceToArrayOf<ScriptRecord> oneElementTable(base, success, &scriptRecordArray[0], 1);
-    
-    if( LE_FAILURE(success) ) {
-      return LEReferenceTo<ScriptTable>(); // couldn't even read the first record - bad font.
-    }
-
-    le_uint16 limit = ((SWAPW(scriptRecordArray[0].offset) - sizeof(ScriptListTable)) / sizeof(scriptRecordArray)) + ANY_NUMBER;
-    Offset scriptTableOffset = 0;
-    
-
-    if (count > limit) {
-        // the scriptCount value is bogus; do a linear search
-        // because limit may still be too large.
-        LEReferenceToArrayOf<ScriptRecord> scriptRecordArrayRef(base, success, &scriptRecordArray[0], limit);
-        for(le_int32 s = 0; (s < limit)&&LE_SUCCESS(success); s += 1) {
-          if (SWAPT(scriptRecordArrayRef(s,success).tag) == scriptTag) {
-            scriptTableOffset = SWAPW(scriptRecordArrayRef(s,success).offset);
-            break;
-          }
-        }
-    } else {
-      LEReferenceToArrayOf<ScriptRecord> scriptRecordArrayRef(base, success, &scriptRecordArray[0], count);
-      
-      scriptTableOffset = OpenTypeUtilities::getTagOffset(scriptTag, scriptRecordArrayRef, success);
-    }
-
-    if (scriptTableOffset != 0) {
-      return LEReferenceTo<ScriptTable>(base, success, scriptTableOffset);
-    }
-
-  return LEReferenceTo<ScriptTable>();
-}
-
-LEReferenceTo<LangSysTable>  ScriptListTable::findLanguage(const LETableReference &base, LETag scriptTag, LETag languageTag, LEErrorCode &success, le_bool exactMatch) const 
-{
-  const LEReferenceTo<ScriptTable> scriptTable = findScript(base, scriptTag, success);
-
-  if (scriptTable.isEmpty()) {
-    return LEReferenceTo<LangSysTable>();
-  }
-
-  return scriptTable->findLanguage(scriptTable, languageTag, success, exactMatch).reparent(base);
-}
-
-U_NAMESPACE_END