scuffed-code/icu4c/source/layout/ScriptAndLanguage.cpp
2003-06-03 20:58:22 +00:00

62 lines
1.5 KiB
C++

/*
* %W% %E%
*
* (C) Copyright IBM Corp. 1998-2003 - All Rights Reserved
*
*/
#include "LETypes.h"
#include "OpenTypeTables.h"
#include "OpenTypeUtilities.h"
#include "ScriptAndLanguage.h"
#include "LESwaps.h"
U_NAMESPACE_BEGIN
const LangSysTable *ScriptTable::findLanguage(LETag languageTag, le_bool exactMatch) const
{
le_uint16 count = SWAPW(langSysCount);
Offset langSysTableOffset = exactMatch? 0 : SWAPW(defaultLangSysTableOffset);
if (count > 0) {
Offset foundOffset =
OpenTypeUtilities::getTagOffset(languageTag, langSysRecordArray, count);
if (foundOffset != 0) {
langSysTableOffset = foundOffset;
}
}
if (langSysTableOffset != 0) {
return (const LangSysTable *) ((char *)this + langSysTableOffset);
}
return 0;
}
const ScriptTable *ScriptListTable::findScript(LETag scriptTag) const
{
le_uint16 count = SWAPW(scriptCount);
Offset scriptTableOffset =
OpenTypeUtilities::getTagOffset(scriptTag, scriptRecordArray, count);
if (scriptTableOffset != 0) {
return (const ScriptTable *) ((char *)this + scriptTableOffset);
}
return 0;
}
const LangSysTable *ScriptListTable::findLanguage(LETag scriptTag, LETag languageTag, le_bool exactMatch) const
{
const ScriptTable *scriptTable = findScript(scriptTag);
if (scriptTable == 0) {
return 0;
}
return scriptTable->findLanguage(languageTag, exactMatch);
}
U_NAMESPACE_END