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diff --git a/core/fxcrt/fx_ucd.h b/core/fxcrt/fx_ucd.h
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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
+
+#ifndef CORE_FXCRT_FX_UCD_H_
+#define CORE_FXCRT_FX_UCD_H_
+
+#include "core/fxcrt/fx_basic.h"
+
+#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
+ FX_BIDICLASS_CS = 7, // Common Number Separator
+ FX_BIDICLASS_ES = 8, // European Separator
+ FX_BIDICLASS_ET = 9, // European Number Terminator
+ FX_BIDICLASS_BN = 10, // Boundary Neutral
+ FX_BIDICLASS_S = 11, // Segment Separator
+ FX_BIDICLASS_WS = 12, // Whitespace
+ FX_BIDICLASS_B = 13, // Paragraph Separator
+ FX_BIDICLASS_RLO = 14, // Right-to-Left Override
+ FX_BIDICLASS_RLE = 15, // Right-to-Left Embedding
+ FX_BIDICLASS_LRO = 16, // Left-to-Right Override
+ FX_BIDICLASS_LRE = 17, // Left-to-Right Embedding
+ FX_BIDICLASS_PDF = 18, // Pop Directional Format
+ FX_BIDICLASS_N = FX_BIDICLASS_ON,
+};
+
+extern const uint32_t kTextLayoutCodeProperties[];
+extern const size_t kTextLayoutCodePropertiesSize;
+
+extern const uint16_t kFXTextLayoutVerticalMirror[];
+extern const size_t kFXTextLayoutVerticalMirrorSize;
+
+extern const uint16_t kFXTextLayoutBidiMirror[];
+extern const size_t kFXTextLayoutBidiMirrorSize;
+
+uint32_t FX_GetUnicodeProperties(FX_WCHAR wch);
+FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch, FX_BOOL bRTL, FX_BOOL bVertical);
+
+#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,
+};
+
+#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),
+};
+inline FX_CHARTYPE GetCharTypeFromProp(uint32_t prop) {
+ return static_cast<FX_CHARTYPE>(prop & FX_CHARTYPEBITSMASK);
+}
+
+FX_BOOL FX_IsCtrlCode(FX_WCHAR ch);
+FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch,
+ uint32_t 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(uint16_t wCharCode, uint32_t 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_CHARTYPE GetCharType() const { return GetCharTypeFromProp(m_dwCharProps); }
+
+ uint16_t m_wCharCode;
+ uint8_t m_nBreakType;
+ int8_t m_nRotation;
+ uint32_t m_dwCharProps;
+ uint32_t 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()
+ : m_dwStatus(0),
+ m_iBidiClass(0),
+ m_iBidiLevel(0),
+ m_iBidiPos(0),
+ m_iBidiOrder(0),
+ m_pUserData(nullptr) {}
+ uint32_t 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_RTFChar(const CFX_RTFChar& other);
+
+ uint32_t 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;
+ uint32_t m_dwLayoutStyles;
+ uint32_t m_dwIdentity;
+ IFX_Retainable* m_pUserData;
+};
+
+inline CFX_RTFChar::CFX_RTFChar()
+ : 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(nullptr) {}
+
+inline CFX_RTFChar::CFX_RTFChar(const CFX_RTFChar& other) = default;
+
+typedef CFX_ArrayTemplate<CFX_RTFChar> CFX_RTFCharArray;
+#endif // PDF_ENABLE_XFA
+
+#endif // CORE_FXCRT_FX_UCD_H_