fgas_arabic.h

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// Copyright 2014 The PDFium Authors
// 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
 
#ifndef XFA_FGAS_LAYOUT_FGAS_ARABIC_H_
#define XFA_FGAS_LAYOUT_FGAS_ARABIC_H_
 
#include <optional>
 
class CFGAS_Char;
 
namespace pdfium {
 
constexpr wchar_t kArabicLetterLam = 0x0644;
constexpr wchar_t kArabicLetterHeh = 0x0647;
constexpr wchar_t kArabicShadda = 0x0651;
constexpr wchar_t kArabicLetterSuperscriptAlef = 0x0670;
 
wchar_t GetArabicFormChar(wchar_t wch, wchar_t prev, wchar_t next);
wchar_t GetArabicFormChar(const CFGAS_Char* cur,
                          const CFGAS_Char* prev,
                          const CFGAS_Char* next);
std::optional<wchar_t> GetArabicFromShaddaTable(wchar_t shadda);
 
}  // namespace pdfium
 
#endif  // XFA_FGAS_LAYOUT_FGAS_ARABIC_H_