core/ difference with XFA (for information only).

core/include/fxcrt/fx_ucd.h

 // 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
 
 #ifndef CORE_INCLUDE_FXCRT_FX_UCD_H_
 #define CORE_INCLUDE_FXCRT_FX_UCD_H_
 
+#ifndef PDF_ENABLE_XFA
 #include "fx_system.h"
+#else
+#include "fx_basic.h"
+#endif
 
+#ifdef PDF_ENABLE_XFA
+enum FX_CHARBREAKPROP {
+  FX_CBP_OP = 0,
+  FX_CBP_CL = 1,
+  FX_CBP_QU = 2,
+  FX_CBP_GL = 3,
+  FX_CBP_NS = 4,
+  FX_CBP_EX = 5,
+  FX_CBP_SY = 6,
+  FX_CBP_IS = 7,
+  FX_CBP_PR = 8,
+  FX_CBP_PO = 9,
+  FX_CBP_NU = 10,
+  FX_CBP_AL = 11,
+  FX_CBP_ID = 12,
+  FX_CBP_IN = 13,
+  FX_CBP_HY = 14,
+  FX_CBP_BA = 15,
+  FX_CBP_BB = 16,
+  FX_CBP_B2 = 17,
+  FX_CBP_ZW = 18,
+  FX_CBP_CM = 19,
+  FX_CBP_WJ = 20,
+  FX_CBP_H2 = 21,
+  FX_CBP_H3 = 22,
+  FX_CBP_JL = 23,
+  FX_CBP_JV = 24,
+  FX_CBP_JT = 25,
+
+  FX_CBP_BK = 26,
+  FX_CBP_CR = 27,
+  FX_CBP_LF = 28,
+  FX_CBP_NL = 29,
+  FX_CBP_SA = 30,
+  FX_CBP_SG = 31,
+  FX_CBP_CB = 32,
+  FX_CBP_XX = 33,
+  FX_CBP_AI = 34,
+  FX_CBP_SP = 35,
+  FX_CBP_TB = 37,
+  FX_CBP_NONE = 36,
+};
+#endif
 #define FX_BIDICLASSBITS 6
 #define FX_BIDICLASSBITSMASK (31 << FX_BIDICLASSBITS)
 enum FX_BIDICLASS {
   FX_BIDICLASS_ON = 0,    // Other Neutral
   FX_BIDICLASS_L = 1,     // Left Letter
   FX_BIDICLASS_R = 2,     // Right Letter
   FX_BIDICLASS_AN = 3,    // Arabic Number
   FX_BIDICLASS_EN = 4,    // European Number
   FX_BIDICLASS_AL = 5,    // Arabic Letter
   FX_BIDICLASS_NSM = 6,   // Non-spacing Mark
@@ skipping 14 matching lines @@
 
 extern const FX_DWORD kTextLayoutCodeProperties[];
 extern const size_t kTextLayoutCodePropertiesSize;
 
 extern const FX_WCHAR kFXTextLayoutVerticalMirror[];
 extern const size_t kFXTextLayoutVerticalMirrorSize;
 
 extern const FX_WCHAR kFXTextLayoutBidiMirror[];
 extern const size_t kFXTextLayoutBidiMirrorSize;
 
+#ifdef PDF_ENABLE_XFA
+#define FX_CHARTYPEBITS 11
+#define FX_CHARTYPEBITSMASK (15 << FX_CHARTYPEBITS)
+enum FX_CHARTYPE {
+  FX_CHARTYPE_Unknown = 0,
+  FX_CHARTYPE_Tab = (1 << FX_CHARTYPEBITS),
+  FX_CHARTYPE_Space = (2 << FX_CHARTYPEBITS),
+  FX_CHARTYPE_Control = (3 << FX_CHARTYPEBITS),
+  FX_CHARTYPE_Combination = (4 << FX_CHARTYPEBITS),
+  FX_CHARTYPE_Numeric = (5 << FX_CHARTYPEBITS),
+  FX_CHARTYPE_Normal = (6 << FX_CHARTYPEBITS),
+  FX_CHARTYPE_ArabicAlef = (7 << FX_CHARTYPEBITS),
+  FX_CHARTYPE_ArabicSpecial = (8 << FX_CHARTYPEBITS),
+  FX_CHARTYPE_ArabicDistortion = (9 << FX_CHARTYPEBITS),
+  FX_CHARTYPE_ArabicNormal = (10 << FX_CHARTYPEBITS),
+  FX_CHARTYPE_ArabicForm = (11 << FX_CHARTYPEBITS),
+  FX_CHARTYPE_Arabic = (12 << FX_CHARTYPEBITS),
+};
+
+#endif
 FX_DWORD FX_GetUnicodeProperties(FX_WCHAR wch);
+#ifdef PDF_ENABLE_XFA
+FX_BOOL FX_IsCtrlCode(FX_WCHAR ch);
+#endif
 FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch, FX_BOOL bRTL, FX_BOOL bVertical);
+#ifdef PDF_ENABLE_XFA
+FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch,
+                          FX_DWORD dwProps,
+                          FX_BOOL bRTL,
+                          FX_BOOL bVertical);
+class CFX_Char {
+ public:
+  CFX_Char()
+      : m_wCharCode(0),
+        m_nBreakType(0),
+        m_nRotation(0),
+        m_dwCharProps(0),
+        m_dwCharStyles(0),
+        m_iCharWidth(0),
+        m_iHorizontalScale(100),
+        m_iVertialScale(100) {}
+  CFX_Char(FX_WORD wCharCode, FX_DWORD dwCharProps)
+      : m_wCharCode(wCharCode),
+        m_nBreakType(0),
+        m_nRotation(0),
+        m_dwCharProps(dwCharProps),
+        m_dwCharStyles(0),
+        m_iCharWidth(0),
+        m_iHorizontalScale(100),
+        m_iVertialScale(100) {}
+  FX_DWORD GetCharType() const { return m_dwCharProps & FX_CHARTYPEBITSMASK; }
+  FX_WORD m_wCharCode;
+  uint8_t m_nBreakType;
+  int8_t m_nRotation;
+  FX_DWORD m_dwCharProps;
+  FX_DWORD m_dwCharStyles;
+  int32_t m_iCharWidth;
+  int32_t m_iHorizontalScale;
+  int32_t m_iVertialScale;
+};
+typedef CFX_ArrayTemplate<CFX_Char> CFX_CharArray;
+class CFX_TxtChar : public CFX_Char {
+ public:
+  CFX_TxtChar()
+      : CFX_Char(),
+        m_dwStatus(0),
+        m_iBidiClass(0),
+        m_iBidiLevel(0),
+        m_iBidiPos(0),
+        m_iBidiOrder(0),
+        m_pUserData(NULL) {}
+  FX_DWORD m_dwStatus;
+  int16_t m_iBidiClass;
+  int16_t m_iBidiLevel;
+  int16_t m_iBidiPos;
+  int16_t m_iBidiOrder;
+  void* m_pUserData;
+};
+typedef CFX_ArrayTemplate<CFX_TxtChar> CFX_TxtCharArray;
+class CFX_RTFChar : public CFX_Char {
+ public:
+  CFX_RTFChar()
+      : CFX_Char(),
+        m_dwStatus(0),
+        m_iFontSize(0),
+        m_iFontHeight(0),
+        m_iBidiClass(0),
+        m_iBidiLevel(0),
+        m_iBidiPos(0),
+        m_dwLayoutStyles(0),
+        m_dwIdentity(0),
+        m_pUserData(NULL) {}
+  FX_DWORD m_dwStatus;
+  int32_t m_iFontSize;
+  int32_t m_iFontHeight;
+  int16_t m_iBidiClass;
+  int16_t m_iBidiLevel;
+  int16_t m_iBidiPos;
+  int16_t m_iBidiOrder;
+  FX_DWORD m_dwLayoutStyles;
+  FX_DWORD m_dwIdentity;
+  IFX_Unknown* m_pUserData;
+};
+typedef CFX_ArrayTemplate<CFX_RTFChar> CFX_RTFCharArray;
+#endif
 
 #endif  // CORE_INCLUDE_FXCRT_FX_UCD_H_