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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "core/fxcrt/fx_ext.h"
#include "xfa/fgas/crt/fgas_codepage.h"
#include "xfa/fgas/crt/fgas_language.h"
namespace {
struct FX_CHARSET_MAP {
uint16_t charset;
uint16_t codepage;
};
const FX_CHARSET_MAP g_FXCharset2CodePageTable[] = {
{FX_CHARSET_ANSI, FX_CODEPAGE_MSWin_WesternEuropean},
{FX_CHARSET_Default, FX_CODEPAGE_DefANSI},
{FX_CHARSET_Symbol, FX_CODEPAGE_Symbol},
{FX_CHARSET_MAC_Roman, FX_CODEPAGE_MAC_Roman},
{FX_CHARSET_MAC_ShiftJIS, FX_CODEPAGE_MAC_ShiftJIS},
{FX_CHARSET_MAC_Korean, FX_CODEPAGE_MAC_Korean},
{FX_CHARSET_MAC_ChineseSimplified, FX_CODEPAGE_MAC_ChineseSimplified},
{FX_CHARSET_MAC_ChineseTriditional, FX_CODEPAGE_MAC_ChineseTraditional},
{FX_CHARSET_MAC_Hebrew, FX_CODEPAGE_MAC_Hebrew},
{FX_CHARSET_MAC_Arabic, FX_CODEPAGE_MAC_Arabic},
{FX_CHARSET_MAC_Greek, FX_CODEPAGE_MAC_Greek},
{FX_CHARSET_MAC_Turkish, FX_CODEPAGE_MAC_Turkish},
{FX_CHARSET_MAC_Thai, FX_CODEPAGE_MAC_Thai},
{FX_CHARSET_MAC_EasternEuropean, FX_CODEPAGE_MAC_EasternEuropean},
{FX_CHARSET_MAC_Cyrillic, FX_CODEPAGE_MAC_Cyrillic},
{FX_CHARSET_ShiftJIS, FX_CODEPAGE_ShiftJIS},
{FX_CHARSET_Korean, FX_CODEPAGE_Korean},
{FX_CHARSET_Johab, FX_CODEPAGE_Johab},
{FX_CHARSET_ChineseSimplified, FX_CODEPAGE_ChineseSimplified},
{FX_CHARSET_ChineseTriditional, FX_CODEPAGE_ChineseTraditional},
{FX_CHARSET_MSWin_Greek, FX_CODEPAGE_MSWin_Greek},
{FX_CHARSET_MSWin_Turkish, FX_CODEPAGE_MSWin_Turkish},
{FX_CHARSET_MSWin_Vietnamese, FX_CODEPAGE_MSWin_Vietnamese},
{FX_CHARSET_MSWin_Hebrew, FX_CODEPAGE_MSWin_Hebrew},
{FX_CHARSET_MSWin_Arabic, FX_CODEPAGE_MSWin_Arabic},
{FX_CHARSET_MSWin_Baltic, FX_CODEPAGE_MSWin_Baltic},
{FX_CHARSET_MSWin_Cyrillic, FX_CODEPAGE_MSWin_Cyrillic},
{FX_CHARSET_Thai, FX_CODEPAGE_MSDOS_Thai},
{FX_CHARSET_MSWin_EasterEuropean, FX_CODEPAGE_MSWin_EasternEuropean},
{FX_CHARSET_US, FX_CODEPAGE_MSDOS_US},
{FX_CHARSET_OEM, FX_CODEPAGE_MSDOS_WesternEuropean},
};
} // namespace
uint16_t FX_GetCodePageFromCharset(uint8_t charset) {
int32_t iEnd = sizeof(g_FXCharset2CodePageTable) / sizeof(FX_CHARSET_MAP) - 1;
ASSERT(iEnd >= 0);
int32_t iStart = 0, iMid;
do {
iMid = (iStart + iEnd) / 2;
const FX_CHARSET_MAP& cp = g_FXCharset2CodePageTable[iMid];
if (charset == cp.charset)
return cp.codepage;
if (charset < cp.charset)
iEnd = iMid - 1;
else
iStart = iMid + 1;
} while (iStart <= iEnd);
return 0xFFFF;
}
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