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      1 // Copyright 2014 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #ifndef CORE_FXCRT_FX_UNICODE_H_
      8 #define CORE_FXCRT_FX_UNICODE_H_
      9 
     10 #include "core/fxcrt/retain_ptr.h"
     11 
     12 uint32_t FX_GetUnicodeProperties(wchar_t wch);
     13 wchar_t FX_GetMirrorChar(wchar_t wch);
     14 
     15 #ifdef PDF_ENABLE_XFA
     16 
     17 // As defined in http://www.unicode.org/reports/tr14
     18 constexpr uint8_t kBreakPropertySpace = 35;
     19 constexpr uint8_t kBreakPropertyTB = 37;  // Don't know what this is ...
     20 
     21 constexpr uint32_t FX_CHARTYPEBITS = 11;
     22 constexpr uint32_t FX_CHARTYPEBITSMASK = 0xF << FX_CHARTYPEBITS;
     23 
     24 enum FX_CHARTYPE {
     25   FX_CHARTYPE_Unknown = 0,
     26   FX_CHARTYPE_Tab = (1 << FX_CHARTYPEBITS),
     27   FX_CHARTYPE_Space = (2 << FX_CHARTYPEBITS),
     28   FX_CHARTYPE_Control = (3 << FX_CHARTYPEBITS),
     29   FX_CHARTYPE_Combination = (4 << FX_CHARTYPEBITS),
     30   FX_CHARTYPE_Numeric = (5 << FX_CHARTYPEBITS),
     31   FX_CHARTYPE_Normal = (6 << FX_CHARTYPEBITS),
     32   FX_CHARTYPE_ArabicAlef = (7 << FX_CHARTYPEBITS),
     33   FX_CHARTYPE_ArabicSpecial = (8 << FX_CHARTYPEBITS),
     34   FX_CHARTYPE_ArabicDistortion = (9 << FX_CHARTYPEBITS),
     35   FX_CHARTYPE_ArabicNormal = (10 << FX_CHARTYPEBITS),
     36   FX_CHARTYPE_ArabicForm = (11 << FX_CHARTYPEBITS),
     37   FX_CHARTYPE_Arabic = (12 << FX_CHARTYPEBITS),
     38 };
     39 
     40 inline FX_CHARTYPE GetCharTypeFromProp(uint32_t prop) {
     41   return static_cast<FX_CHARTYPE>(prop & FX_CHARTYPEBITSMASK);
     42 }
     43 
     44 wchar_t FX_GetMirrorChar(wchar_t wch, uint32_t dwProps);
     45 
     46 #endif  // PDF_ENABLE_XFA
     47 
     48 #endif  // CORE_FXCRT_FX_UNICODE_H_
     49