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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_ucd.h"
namespace {
constexpr uint32_t kMirrorBits = 23;
constexpr uint32_t kMirrorMask = 0x1FFU << kMirrorBits;
wchar_t GetMirrorChar(wchar_t wch, uint32_t dwProps) {
uint32_t dwTemp = (dwProps & kMirrorMask);
if (dwTemp == kMirrorMask)
return wch;
size_t idx = dwTemp >> kMirrorBits;
return idx < kFXTextLayoutBidiMirrorSize ? kFXTextLayoutBidiMirror[idx] : wch;
}
} // namespace
uint32_t FX_GetUnicodeProperties(wchar_t wch) {
size_t idx = static_cast<size_t>(wch);
if (idx < kTextLayoutCodePropertiesSize)
return kTextLayoutCodeProperties[(uint16_t)wch];
return 0;
}
wchar_t FX_GetMirrorChar(wchar_t wch) {
return GetMirrorChar(wch, FX_GetUnicodeProperties(wch));
}
#ifdef PDF_ENABLE_XFA
wchar_t FX_GetMirrorChar(wchar_t wch, uint32_t dwProps) {
return GetMirrorChar(wch, dwProps);
}
#endif // PDF_ENABLE_XFA
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