/*

 * %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