1 /*

     2  * %W% %E%

     3  *

     4  * (C) Copyright IBM Corp. 1998-2003 - All Rights Reserved

     5  *

     6  */

     7 

     8 #include "LETypes.h"

     9 #include "OpenTypeTables.h"

    10 #include "OpenTypeUtilities.h"

    11 #include "ScriptAndLanguage.h"

    12 #include "LESwaps.h"

    13 

    14 U_NAMESPACE_BEGIN

    15 

    16 const LangSysTable *ScriptTable::findLanguage(LETag languageTag, le_bool exactMatch) const

    17 {

    18     le_uint16 count = SWAPW(langSysCount);

    19     Offset langSysTableOffset = exactMatch? 0 : SWAPW(defaultLangSysTableOffset);

    20 

    21     if (count > 0) {

    22         Offset foundOffset =

    23             OpenTypeUtilities::getTagOffset(languageTag, langSysRecordArray, count);

    24 

    25         if (foundOffset != 0) {

    26             langSysTableOffset = foundOffset;

    27         }

    28     }

    29 

    30     if (langSysTableOffset != 0) {

    31         return (const LangSysTable *) ((char *)this + langSysTableOffset);

    32     }

    33 

    34     return 0;

    35 }

    36 

    37 const ScriptTable *ScriptListTable::findScript(LETag scriptTag) const

    38 {

    39     le_uint16 count = SWAPW(scriptCount);

    40     Offset scriptTableOffset =

    41         OpenTypeUtilities::getTagOffset(scriptTag, scriptRecordArray, count);

    42 

    43     if (scriptTableOffset != 0) {

    44         return (const ScriptTable *) ((char *)this + scriptTableOffset);

    45     }

    46 

    47     return 0;

    48 }

    49 

    50 const LangSysTable *ScriptListTable::findLanguage(LETag scriptTag, LETag languageTag, le_bool exactMatch) const

    51 {

    52     const ScriptTable *scriptTable = findScript(scriptTag);

    53 

    54     if (scriptTable == 0) {

    55         return 0;

    56     }

    57 

    58     return scriptTable->findLanguage(languageTag, exactMatch);

    59 }

    60 

    61 U_NAMESPACE_END