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-rw-r--r--BUILD.gn3
-rw-r--r--core/include/fxcrt/fx_arb.h42
-rw-r--r--core/include/fxcrt/fx_bidi.h59
-rw-r--r--core/include/fxcrt/fx_ucd.h18
-rw-r--r--core/src/fpdftext/fpdf_text.cpp16
-rw-r--r--core/src/fpdftext/fpdf_text_int.cpp36
-rw-r--r--core/src/fpdftext/text_int.h2
-rw-r--r--core/src/fxcrt/fx_arabic.cpp383
-rw-r--r--core/src/fxcrt/fx_arabic.h26
-rw-r--r--core/src/fxcrt/fx_bidi.cpp66
-rw-r--r--core/src/fxcrt/fx_bidi_unittest.cpp136
-rw-r--r--core/src/fxcrt/fx_unicode.cpp48
-rw-r--r--pdfium.gyp3
13 files changed, 539 insertions, 299 deletions
diff --git a/BUILD.gn b/BUILD.gn
index 1ab969a927..00b4775830 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -467,6 +467,7 @@ static_library("fxcrt") {
sources = [
"core/include/fxcrt/fx_arb.h",
"core/include/fxcrt/fx_basic.h",
+ "core/include/fxcrt/fx_bidi.h",
"core/include/fxcrt/fx_coordinates.h",
"core/include/fxcrt/fx_ext.h",
"core/include/fxcrt/fx_memory.h",
@@ -491,6 +492,7 @@ static_library("fxcrt") {
"core/src/fxcrt/fx_basic_utf.cpp",
"core/src/fxcrt/fx_basic_util.cpp",
"core/src/fxcrt/fx_basic_wstring.cpp",
+ "core/src/fxcrt/fx_bidi.cpp",
"core/src/fxcrt/fx_extension.cpp",
"core/src/fxcrt/fx_ucddata.cpp",
"core/src/fxcrt/fx_unicode.cpp",
@@ -1477,6 +1479,7 @@ test("pdfium_unittests") {
"core/src/fxcrt/fx_basic_bstring_unittest.cpp",
"core/src/fxcrt/fx_basic_memmgr_unittest.cpp",
"core/src/fxcrt/fx_basic_wstring_unittest.cpp",
+ "core/src/fxcrt/fx_bidi_unittest.cpp",
"core/src/fxcrt/fx_system_unittest.cpp",
"third_party/base/nonstd_unique_ptr_unittest.cpp",
"xfa/src/fxbarcode/pdf417/BC_PDF417HighLevelEncoder_unittest.cpp",
diff --git a/core/include/fxcrt/fx_arb.h b/core/include/fxcrt/fx_arb.h
index d3612db4e7..6760ef3d79 100644
--- a/core/include/fxcrt/fx_arb.h
+++ b/core/include/fxcrt/fx_arb.h
@@ -11,39 +11,35 @@
#include "fx_ucd.h"
class IFX_ArabicChar;
-class IFX_BidiChar;
-#ifdef __cplusplus
-extern "C" {
-#endif
-typedef struct _FX_ARBFORMTABLE {
+
+struct FX_ARBFORMTABLE {
FX_WCHAR wIsolated;
FX_WCHAR wFinal;
FX_WCHAR wInitial;
FX_WCHAR wMedial;
-} FX_ARBFORMTABLE, *FX_LPARBFORMTABLE;
-typedef FX_ARBFORMTABLE const* FX_LPCARBFORMTABLE;
-typedef struct _FX_ARAALEF {
+};
+
+struct FX_ARAALEF {
FX_WCHAR wAlef;
FX_WCHAR wIsolated;
-} FX_ARAALEF, *FX_LPARAALEF;
-typedef FX_ARAALEF const* FX_LPCARAALEF;
-typedef struct _FX_ARASHADDA {
+};
+
+struct FX_ARASHADDA {
FX_WCHAR wShadda;
FX_WCHAR wIsolated;
-} FX_ARASHADDA, *FX_LPARASHADDA;
-typedef FX_ARASHADDA const* FX_LPCARASHADDA;
-FX_LPCARBFORMTABLE FX_GetArabicFormTable(FX_WCHAR unicode);
+};
+
+const FX_ARBFORMTABLE* FX_GetArabicFormTable(FX_WCHAR unicode);
FX_WCHAR FX_GetArabicFromAlefTable(FX_WCHAR alef);
FX_WCHAR FX_GetArabicFromShaddaTable(FX_WCHAR shadda);
-#ifdef __cplusplus
-};
-#endif
+
enum FX_ARBPOSITION {
FX_ARBPOSITION_Isolated = 0,
FX_ARBPOSITION_Final,
FX_ARBPOSITION_Initial,
FX_ARBPOSITION_Medial,
};
+
class IFX_ArabicChar {
public:
static IFX_ArabicChar* Create();
@@ -58,6 +54,7 @@ class IFX_ArabicChar {
const CFX_Char* prev,
const CFX_Char* next) const = 0;
};
+
void FX_BidiLine(CFX_WideString& wsText, int32_t iBaseLevel = 0);
void FX_BidiLine(CFX_TxtCharArray& chars,
int32_t iCount,
@@ -65,16 +62,5 @@ void FX_BidiLine(CFX_TxtCharArray& chars,
void FX_BidiLine(CFX_RTFCharArray& chars,
int32_t iCount,
int32_t iBaseLevel = 0);
-class IFX_BidiChar {
- public:
- static IFX_BidiChar* Create();
- virtual ~IFX_BidiChar() {}
-
- virtual void SetPolicy(FX_BOOL bSeparateNeutral = TRUE) = 0;
- virtual FX_BOOL AppendChar(FX_WCHAR wch) = 0;
- virtual FX_BOOL EndChar() = 0;
- virtual int32_t GetBidiInfo(int32_t& iStart, int32_t& iCount) = 0;
- virtual void Reset() = 0;
-};
#endif // CORE_INCLUDE_FXCRT_FX_ARB_H_
diff --git a/core/include/fxcrt/fx_bidi.h b/core/include/fxcrt/fx_bidi.h
new file mode 100644
index 0000000000..a55ce6cfd2
--- /dev/null
+++ b/core/include/fxcrt/fx_bidi.h
@@ -0,0 +1,59 @@
+// 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_BIDI_H_
+#define CORE_INCLUDE_FXCRT_FX_BIDI_H_
+
+#include "fx_system.h"
+
+// Processes characters and group them into segments based on text direction.
+class CFX_BidiChar {
+ public:
+ enum Direction { NEUTRAL, LEFT, RIGHT };
+
+ CFX_BidiChar();
+ ~CFX_BidiChar();
+
+ // Append a character and classify it as left, right, or neutral.
+ // Returns true if the character has a different direction than the
+ // existing direction to indicate there is a segment to process.
+ bool AppendChar(FX_WCHAR wch);
+
+ // Call this after the last character has been appended. AppendChar()
+ // must not be called after this.
+ // Returns true if there is still a segment to process.
+ bool EndChar();
+
+ // Get information about the segment to process.
+ // The segment's start position and character count is returned in |iStart|
+ // and |iCount|, respectively. Pass in null pointers if the information is
+ // not needed.
+ // Returns the segment direction.
+ Direction GetBidiInfo(int32_t* iStart, int32_t* iCount) const;
+
+ private:
+ void SaveCurrentStateToLastState();
+
+ // Position of the current segment.
+ int32_t m_iCurStart;
+
+ // Number of characters in the current segment.
+ int32_t m_iCurCount;
+
+ // Direction of the current segment.
+ Direction m_CurBidi;
+
+ // Number of characters in the last segment.
+ int32_t m_iLastStart;
+
+ // Number of characters in the last segment.
+ int32_t m_iLastCount;
+
+ // Direction of the last segment.
+ Direction m_LastBidi;
+};
+
+#endif // CORE_INCLUDE_FXCRT_FX_BIDI_H_
diff --git a/core/include/fxcrt/fx_ucd.h b/core/include/fxcrt/fx_ucd.h
index 823b80700a..d4a43bd096 100644
--- a/core/include/fxcrt/fx_ucd.h
+++ b/core/include/fxcrt/fx_ucd.h
@@ -101,25 +101,9 @@ enum FX_CHARTYPE {
FX_CHARTYPE_ArabicForm = (11 << FX_CHARTYPEBITS),
FX_CHARTYPE_Arabic = (12 << FX_CHARTYPEBITS),
};
-typedef struct _FX_CHARPROPERTIES {
- union FX_CHARPROPERTIES_UNION {
- struct FX_CHARPROPERTIES_BIT {
- FX_DWORD dwBreakType : 6;
- FX_DWORD dwBidiClass : 5;
- FX_DWORD dwCharType : 4;
- FX_DWORD dwRotation : 1;
- FX_DWORD dwCJKSpecial : 1;
- FX_DWORD dwVertIndex : 6;
- FX_DWORD dwBidiIndex : 9;
- };
- FX_DWORD dwCharProps;
- };
-} FX_CHARPROPERTIES;
+
FX_DWORD FX_GetUnicodeProperties(FX_WCHAR wch);
FX_BOOL FX_IsCtrlCode(FX_WCHAR ch);
-FX_BOOL FX_IsRotationCode(FX_WCHAR ch);
-FX_BOOL FX_IsCombinationChar(FX_WCHAR wch);
-FX_BOOL FX_IsBidiChar(FX_WCHAR wch);
FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch, FX_BOOL bRTL, FX_BOOL bVertical);
FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch,
FX_DWORD dwProps,
diff --git a/core/src/fpdftext/fpdf_text.cpp b/core/src/fpdftext/fpdf_text.cpp
index 2bd8b7d6ce..9ecbc21bda 100644
--- a/core/src/fpdftext/fpdf_text.cpp
+++ b/core/src/fpdftext/fpdf_text.cpp
@@ -9,7 +9,7 @@
#include "../../include/fpdfapi/fpdf_pageobj.h"
#include "../../include/fpdfapi/fpdf_resource.h"
#include "../../include/fpdftext/fpdf_text.h"
-#include "../../include/fxcrt/fx_arb.h"
+#include "../../include/fxcrt/fx_bidi.h"
#include "../../include/fxcrt/fx_ucd.h"
#include "text_int.h"
#include "txtproc.h"
@@ -315,35 +315,35 @@ void NormalizeString(CFX_WideString& str) {
return;
}
CFX_WideString sBuffer;
- nonstd::unique_ptr<IFX_BidiChar> pBidiChar(IFX_BidiChar::Create());
+ nonstd::unique_ptr<CFX_BidiChar> pBidiChar(new CFX_BidiChar);
CFX_WordArray order;
FX_BOOL bR2L = FALSE;
int32_t start = 0, count = 0, i = 0;
int nR2L = 0, nL2R = 0;
for (i = 0; i < str.GetLength(); i++) {
if (pBidiChar->AppendChar(str.GetAt(i))) {
- int32_t ret = pBidiChar->GetBidiInfo(start, count);
+ CFX_BidiChar::Direction ret = pBidiChar->GetBidiInfo(&start, &count);
order.Add(start);
order.Add(count);
order.Add(ret);
if (!bR2L) {
- if (ret == 2) {
+ if (ret == CFX_BidiChar::RIGHT) {
nR2L++;
- } else if (ret == 1) {
+ } else if (ret == CFX_BidiChar::LEFT) {
nL2R++;
}
}
}
}
if (pBidiChar->EndChar()) {
- int32_t ret = pBidiChar->GetBidiInfo(start, count);
+ CFX_BidiChar::Direction ret = pBidiChar->GetBidiInfo(&start, &count);
order.Add(start);
order.Add(count);
order.Add(ret);
if (!bR2L) {
- if (ret == 2) {
+ if (ret == CFX_BidiChar::RIGHT) {
nR2L++;
- } else if (ret == 1) {
+ } else if (ret == CFX_BidiChar::LEFT) {
nL2R++;
}
}
diff --git a/core/src/fpdftext/fpdf_text_int.cpp b/core/src/fpdftext/fpdf_text_int.cpp
index aa25728c15..202fab45fa 100644
--- a/core/src/fpdftext/fpdf_text_int.cpp
+++ b/core/src/fpdftext/fpdf_text_int.cpp
@@ -13,7 +13,7 @@
#include "../../include/fpdfapi/fpdf_pageobj.h"
#include "../../include/fpdfapi/fpdf_resource.h"
#include "../../include/fpdftext/fpdf_text.h"
-#include "../../include/fxcrt/fx_arb.h"
+#include "../../include/fxcrt/fx_bidi.h"
#include "../../include/fxcrt/fx_ucd.h"
#include "text_int.h"
@@ -1001,10 +1001,10 @@ int CPDF_TextPage::GetCharWidth(FX_DWORD charCode, CPDF_Font* pFont) const {
}
return w;
}
-void CPDF_TextPage::OnPiece(IFX_BidiChar* pBidi, CFX_WideString& str) {
+void CPDF_TextPage::OnPiece(CFX_BidiChar* pBidi, CFX_WideString& str) {
int32_t start, count;
- int32_t ret = pBidi->GetBidiInfo(start, count);
- if (ret == 2) {
+ CFX_BidiChar::Direction ret = pBidi->GetBidiInfo(&start, &count);
+ if (ret == CFX_BidiChar::RIGHT) {
for (int i = start + count - 1; i >= start; i--) {
m_TextBuf.AppendChar(str.GetAt(i));
m_charList.Add(*(PAGECHAR_INFO*)m_TempCharList.GetAt(i));
@@ -1085,7 +1085,7 @@ void CPDF_TextPage::CloseTempLine() {
if (count1 <= 0) {
return;
}
- nonstd::unique_ptr<IFX_BidiChar> pBidiChar(IFX_BidiChar::Create());
+ nonstd::unique_ptr<CFX_BidiChar> pBidiChar(new CFX_BidiChar);
CFX_WideString str = m_TempTextBuf.GetWideString();
CFX_WordArray order;
FX_BOOL bR2L = FALSE;
@@ -1107,28 +1107,28 @@ void CPDF_TextPage::CloseTempLine() {
bPrevSpace = FALSE;
}
if (pBidiChar->AppendChar(str.GetAt(i))) {
- int32_t ret = pBidiChar->GetBidiInfo(start, count);
+ CFX_BidiChar::Direction ret = pBidiChar->GetBidiInfo(&start, &count);
order.Add(start);
order.Add(count);
order.Add(ret);
if (!bR2L) {
- if (ret == 2) {
+ if (ret == CFX_BidiChar::RIGHT) {
nR2L++;
- } else if (ret == 1) {
+ } else if (ret == CFX_BidiChar::LEFT) {
nL2R++;
}
}
}
}
if (pBidiChar->EndChar()) {
- int32_t ret = pBidiChar->GetBidiInfo(start, count);
+ CFX_BidiChar::Direction ret = pBidiChar->GetBidiInfo(&start, &count);
order.Add(start);
order.Add(count);
order.Add(ret);
if (!bR2L) {
- if (ret == 2) {
+ if (ret == CFX_BidiChar::RIGHT) {
nR2L++;
- } else if (ret == 1) {
+ } else if (ret == CFX_BidiChar::LEFT) {
nL2R++;
}
}
@@ -1560,7 +1560,7 @@ void CPDF_TextPage::ProcessTextObject(PDFTEXT_Obj Obj) {
FX_FLOAT baseSpace = _CalculateBaseSpace(pTextObj, matrix);
FX_BOOL bIsBidiAndMirrosInverse = FALSE;
- IFX_BidiChar* BidiChar = IFX_BidiChar::Create();
+ CFX_BidiChar* BidiChar = new CFX_BidiChar;
int32_t nR2L = 0;
int32_t nL2R = 0;
int32_t start = 0, count = 0;
@@ -1579,19 +1579,19 @@ void CPDF_TextPage::ProcessTextObject(PDFTEXT_Obj Obj) {
continue;
}
if (BidiChar && BidiChar->AppendChar(wChar)) {
- int32_t ret = BidiChar->GetBidiInfo(start, count);
- if (ret == 2) {
+ CFX_BidiChar::Direction ret = BidiChar->GetBidiInfo(&start, &count);
+ if (ret == CFX_BidiChar::RIGHT) {
nR2L++;
- } else if (ret == 1) {
+ } else if (ret == CFX_BidiChar::LEFT) {
nL2R++;
}
}
}
if (BidiChar && BidiChar->EndChar()) {
- int32_t ret = BidiChar->GetBidiInfo(start, count);
- if (ret == 2) {
+ CFX_BidiChar::Direction ret = BidiChar->GetBidiInfo(&start, &count);
+ if (ret == CFX_BidiChar::RIGHT) {
nR2L++;
- } else if (ret == 1) {
+ } else if (ret == CFX_BidiChar::LEFT) {
nL2R++;
}
}
diff --git a/core/src/fpdftext/text_int.h b/core/src/fpdftext/text_int.h
index b5a7734e54..d10c5501e6 100644
--- a/core/src/fpdftext/text_int.h
+++ b/core/src/fpdftext/text_int.h
@@ -119,7 +119,7 @@ class CPDF_TextPage : public IPDF_TextPage {
CPDF_TextObject* pTextObj2);
int GetCharWidth(FX_DWORD charCode, CPDF_Font* pFont) const;
void CloseTempLine();
- void OnPiece(IFX_BidiChar* pBidi, CFX_WideString& str);
+ void OnPiece(CFX_BidiChar* pBidi, CFX_WideString& str);
int32_t PreMarkedContent(PDFTEXT_Obj pObj);
void ProcessMarkedContent(PDFTEXT_Obj pObj);
void CheckMarkedContentObject(int32_t& start, int32_t& nCount) const;
diff --git a/core/src/fxcrt/fx_arabic.cpp b/core/src/fxcrt/fx_arabic.cpp
index 139e9f1f48..1869cb2008 100644
--- a/core/src/fxcrt/fx_arabic.cpp
+++ b/core/src/fxcrt/fx_arabic.cpp
@@ -7,112 +7,209 @@
#include "../../include/fxcrt/fx_ucd.h"
#include "fx_arabic.h"
-#ifdef __cplusplus
-extern "C" {
-#endif
-static const FX_ARBFORMTABLE g_FX_ArabicFormTables[] = {
- {0xFE81, 0xFE82, 0xFE81, 0xFE82}, {0xFE83, 0xFE84, 0xFE83, 0xFE84},
- {0xFE85, 0xFE86, 0xFE85, 0xFE86}, {0xFE87, 0xFE88, 0xFE87, 0xFE88},
- {0xFE89, 0xFE8A, 0xFE8B, 0xFE8C}, {0xFE8D, 0xFE8E, 0xFE8D, 0xFE8E},
- {0xFE8F, 0xFE90, 0xFE91, 0xFE92}, {0xFE93, 0xFE94, 0xFE93, 0xFE94},
- {0xFE95, 0xFE96, 0xFE97, 0xFE98}, {0xFE99, 0xFE9A, 0xFE9B, 0xFE9C},
- {0xFE9D, 0xFE9E, 0xFE9F, 0xFEA0}, {0xFEA1, 0xFEA2, 0xFEA3, 0xFEA4},
- {0xFEA5, 0xFEA6, 0xFEA7, 0xFEA8}, {0xFEA9, 0xFEAA, 0xFEA9, 0xFEAA},
- {0xFEAB, 0xFEAC, 0xFEAB, 0xFEAC}, {0xFEAD, 0xFEAE, 0xFEAD, 0xFEAE},
- {0xFEAF, 0xFEB0, 0xFEAF, 0xFEB0}, {0xFEB1, 0xFEB2, 0xFEB3, 0xFEB4},
- {0xFEB5, 0xFEB6, 0xFEB7, 0xFEB8}, {0xFEB9, 0xFEBA, 0xFEBB, 0xFEBC},
- {0xFEBD, 0xFEBE, 0xFEBF, 0xFEC0}, {0xFEC1, 0xFEC2, 0xFEC3, 0xFEC4},
- {0xFEC5, 0xFEC6, 0xFEC7, 0xFEC8}, {0xFEC9, 0xFECA, 0xFECB, 0xFECC},
- {0xFECD, 0xFECE, 0xFECF, 0xFED0}, {0x063B, 0x063B, 0x063B, 0x063B},
- {0x063C, 0x063C, 0x063C, 0x063C}, {0x063D, 0x063D, 0x063D, 0x063D},
- {0x063E, 0x063E, 0x063E, 0x063E}, {0x063F, 0x063F, 0x063F, 0x063F},
- {0x0640, 0x0640, 0x0640, 0x0640}, {0xFED1, 0xFED2, 0xFED3, 0xFED4},
- {0xFED5, 0xFED6, 0xFED7, 0xFED8}, {0xFED9, 0xFEDA, 0xFEDB, 0xFEDC},
- {0xFEDD, 0xFEDE, 0xFEDF, 0xFEE0}, {0xFEE1, 0xFEE2, 0xFEE3, 0xFEE4},
- {0xFEE5, 0xFEE6, 0xFEE7, 0xFEE8}, {0xFEE9, 0xFEEA, 0xFEEB, 0xFEEC},
- {0xFEED, 0xFEEE, 0xFEED, 0xFEEE}, {0xFEEF, 0xFEF0, 0xFBFE, 0xFBFF},
- {0xFEF1, 0xFEF2, 0xFEF3, 0xFEF4}, {0x064B, 0x064B, 0x064B, 0x064B},
- {0x064C, 0x064C, 0x064C, 0x064C}, {0x064D, 0x064D, 0x064D, 0x064D},
- {0x064E, 0x064E, 0x064E, 0x064E}, {0x064F, 0x064F, 0x064F, 0x064F},
- {0x0650, 0x0650, 0x0650, 0x0650}, {0x0651, 0x0651, 0x0651, 0x0651},
- {0x0652, 0x0652, 0x0652, 0x0652}, {0x0653, 0x0653, 0x0653, 0x0653},
- {0x0654, 0x0654, 0x0654, 0x0654}, {0x0655, 0x0655, 0x0655, 0x0655},
- {0x0656, 0x0656, 0x0656, 0x0656}, {0x0657, 0x0657, 0x0657, 0x0657},
- {0x0658, 0x0658, 0x0658, 0x0658}, {0x0659, 0x0659, 0x0659, 0x0659},
- {0x065A, 0x065A, 0x065A, 0x065A}, {0x065B, 0x065B, 0x065B, 0x065B},
- {0x065C, 0x065C, 0x065C, 0x065C}, {0x065D, 0x065D, 0x065D, 0x065D},
- {0x065E, 0x065E, 0x065E, 0x065E}, {0x065F, 0x065F, 0x065F, 0x065F},
- {0x0660, 0x0660, 0x0660, 0x0660}, {0x0661, 0x0661, 0x0661, 0x0661},
- {0x0662, 0x0662, 0x0662, 0x0662}, {0x0663, 0x0663, 0x0663, 0x0663},
- {0x0664, 0x0664, 0x0664, 0x0664}, {0x0665, 0x0665, 0x0665, 0x0665},
- {0x0666, 0x0666, 0x0666, 0x0666}, {0x0667, 0x0667, 0x0667, 0x0667},
- {0x0668, 0x0668, 0x0668, 0x0668}, {0x0669, 0x0669, 0x0669, 0x0669},
- {0x066A, 0x066A, 0x066A, 0x066A}, {0x066B, 0x066B, 0x066B, 0x066B},
- {0x066C, 0x066C, 0x066C, 0x066C}, {0x066D, 0x066D, 0x066D, 0x066D},
- {0x066E, 0x066E, 0x066E, 0x066E}, {0x066F, 0x066F, 0x066F, 0x066F},
- {0x0670, 0x0670, 0x0670, 0x0670}, {0xFB50, 0xFB51, 0xFB50, 0xFB51},
- {0x0672, 0x0672, 0x0672, 0x0672}, {0x0673, 0x0673, 0x0673, 0x0673},
- {0x0674, 0x0674, 0x0674, 0x0674}, {0x0675, 0x0675, 0x0675, 0x0675},
- {0x0676, 0x0676, 0x0676, 0x0676}, {0x0677, 0x0677, 0x0677, 0x0677},
- {0x0678, 0x0678, 0x0678, 0x0678}, {0xFB66, 0xFB67, 0xFB68, 0xFB69},
- {0xFB5E, 0xFB5F, 0xFB60, 0xFB61}, {0xFB52, 0xFB53, 0xFB54, 0xFB55},
- {0x067C, 0x067C, 0x067C, 0x067C}, {0x067D, 0x067D, 0x067D, 0x067D},
- {0xFB56, 0xFB57, 0xFB58, 0xFB59}, {0xFB62, 0xFB63, 0xFB64, 0xFB65},
- {0xFB5A, 0xFB5B, 0xFB5C, 0xFB5D}, {0x0681, 0x0681, 0x0681, 0x0681},
- {0x0682, 0x0682, 0x0682, 0x0682}, {0xFB76, 0xFB77, 0xFB78, 0xFB79},
- {0xFB72, 0xFB73, 0xFB74, 0xFB75}, {0x0685, 0x0685, 0x0685, 0x0685},
- {0xFB7A, 0xFB7B, 0xFB7C, 0xFB7D}, {0xFB7E, 0xFB7F, 0xFB80, 0xFB81},
- {0xFB88, 0xFB89, 0xFB88, 0xFB89}, {0x0689, 0x0689, 0x0689, 0x0689},
- {0x068A, 0x068A, 0x068A, 0x068A}, {0x068B, 0x068B, 0x068B, 0x068B},
- {0xFB84, 0xFB85, 0xFB84, 0xFB85}, {0xFB82, 0xFB83, 0xFB82, 0xFB83},
- {0xFB86, 0xFB87, 0xFB86, 0xFB87}, {0x068F, 0x068F, 0x068F, 0x068F},
- {0x0690, 0x0690, 0x0690, 0x0690}, {0xFB8C, 0xFB8D, 0xFB8C, 0xFB8D},
- {0x0692, 0x0692, 0x0692, 0x0692}, {0x0693, 0x0693, 0x0693, 0x0693},
- {0x0694, 0x0694, 0x0694, 0x0694}, {0x0695, 0x0695, 0x0695, 0x0695},
- {0x0696, 0x0696, 0x0696, 0x0696}, {0x0697, 0x0697, 0x0697, 0x0697},
- {0xFB8A, 0xFB8B, 0xFB8A, 0xFB8B}, {0x0699, 0x0699, 0x0699, 0x0699},
- {0x069A, 0x069A, 0x069A, 0x069A}, {0x069B, 0x069B, 0x069B, 0x069B},
- {0x069C, 0x069C, 0x069C, 0x069C}, {0x069D, 0x069D, 0x069D, 0x069D},
- {0x069E, 0x069E, 0x069E, 0x069E}, {0x069F, 0x069F, 0x069F, 0x069F},
- {0x06A0, 0x06A0, 0x06A0, 0x06A0}, {0x06A1, 0x06A1, 0x06A1, 0x06A1},
- {0x06A2, 0x06A2, 0x06A2, 0x06A2}, {0x06A3, 0x06A3, 0x06A3, 0x06A3},
- {0xFB6A, 0xFB6B, 0xFB6C, 0xFB6D}, {0x06A5, 0x06A5, 0x06A5, 0x06A5},
- {0xFB6E, 0xFB6F, 0xFB70, 0xFB71}, {0x06A7, 0x06A7, 0x06A7, 0x06A7},
- {0x06A8, 0x06A8, 0x06A8, 0x06A8}, {0xFB8E, 0xFB8F, 0xFB90, 0xFB91},
- {0x06AA, 0x06AA, 0x06AA, 0x06AA}, {0x06AB, 0x06AB, 0x06AB, 0x06AB},
- {0x06AC, 0x06AC, 0x06AC, 0x06AC}, {0xFBD3, 0xFBD4, 0xFBD5, 0xFBD6},
- {0x06AE, 0x06AE, 0x06AE, 0x06AE}, {0xFB92, 0xFB93, 0xFB94, 0xFB95},
- {0x06B0, 0x06B0, 0x06B0, 0x06B0}, {0xFB9A, 0xFB9B, 0xFB9C, 0xFB9D},
- {0x06B2, 0x06B2, 0x06B2, 0x06B2}, {0xFB96, 0xFB97, 0xFB98, 0xFB99},
- {0x06B4, 0x06B4, 0x06B4, 0x06B4}, {0x06B5, 0x06B5, 0x06B5, 0x06B5},
- {0x06B6, 0x06B6, 0x06B6, 0x06B6}, {0x06B7, 0x06B7, 0x06B7, 0x06B7},
- {0x06B8, 0x06B8, 0x06B8, 0x06B8}, {0x06B9, 0x06B9, 0x06B9, 0x06B9},
- {0xFB9E, 0xFB9F, 0xFBE8, 0xFBE9}, {0xFBA0, 0xFBA1, 0xFBA2, 0xFBA3},
- {0x06BC, 0x06BC, 0x06BC, 0x06BC}, {0x06BD, 0x06BD, 0x06BD, 0x06BD},
- {0xFBAA, 0xFBAB, 0xFBAC, 0xFBAD}, {0x06BF, 0x06BF, 0x06BF, 0x06BF},
- {0xFBA4, 0xFBA5, 0xFBA4, 0xFBA5}, {0xFBA6, 0xFBA7, 0xFBA8, 0xFBA9},
- {0x06C2, 0x06C2, 0x06C2, 0x06C2}, {0x06C3, 0x06C3, 0x06C3, 0x06C3},
- {0x06C4, 0x06C4, 0x06C4, 0x06C4}, {0xFBE0, 0xFBE1, 0xFBE0, 0xFBE1},
- {0xFBD9, 0xFBDA, 0xFBD9, 0xFBDA}, {0xFBD7, 0xFBD8, 0xFBD7, 0xFBD8},
- {0xFBDB, 0xFBDC, 0xFBDB, 0xFBDC}, {0xFBE2, 0xFBE3, 0xFBE2, 0xFBE3},
- {0x06CA, 0x06CA, 0x06CA, 0x06CA}, {0xFBDE, 0xFBDF, 0xFBDE, 0xFBDF},
- {0xFBFC, 0xFBFD, 0xFBFE, 0xFBFF}, {0x06CD, 0x06CD, 0x06CD, 0x06CD},
- {0x06CE, 0x06CE, 0x06CE, 0x06CE}, {0x06CF, 0x06CF, 0x06CF, 0x06CF},
- {0xFBE4, 0xFBE5, 0xFBE6, 0xFBE7}, {0x06D1, 0x06D1, 0x06D1, 0x06D1},
- {0xFBAE, 0xFBAF, 0xFBAE, 0xFBAF}, {0xFBB0, 0xFBB1, 0xFBB0, 0xFBB1},
- {0x06D4, 0x06D4, 0x06D4, 0x06D4}, {0x06D5, 0x06D5, 0x06D5, 0x06D5},
+namespace {
+
+const FX_ARBFORMTABLE g_FX_ArabicFormTables[] = {
+ {0xFE81, 0xFE82, 0xFE81, 0xFE82},
+ {0xFE83, 0xFE84, 0xFE83, 0xFE84},
+ {0xFE85, 0xFE86, 0xFE85, 0xFE86},
+ {0xFE87, 0xFE88, 0xFE87, 0xFE88},
+ {0xFE89, 0xFE8A, 0xFE8B, 0xFE8C},
+ {0xFE8D, 0xFE8E, 0xFE8D, 0xFE8E},
+ {0xFE8F, 0xFE90, 0xFE91, 0xFE92},
+ {0xFE93, 0xFE94, 0xFE93, 0xFE94},
+ {0xFE95, 0xFE96, 0xFE97, 0xFE98},
+ {0xFE99, 0xFE9A, 0xFE9B, 0xFE9C},
+ {0xFE9D, 0xFE9E, 0xFE9F, 0xFEA0},
+ {0xFEA1, 0xFEA2, 0xFEA3, 0xFEA4},
+ {0xFEA5, 0xFEA6, 0xFEA7, 0xFEA8},
+ {0xFEA9, 0xFEAA, 0xFEA9, 0xFEAA},
+ {0xFEAB, 0xFEAC, 0xFEAB, 0xFEAC},
+ {0xFEAD, 0xFEAE, 0xFEAD, 0xFEAE},
+ {0xFEAF, 0xFEB0, 0xFEAF, 0xFEB0},
+ {0xFEB1, 0xFEB2, 0xFEB3, 0xFEB4},
+ {0xFEB5, 0xFEB6, 0xFEB7, 0xFEB8},
+ {0xFEB9, 0xFEBA, 0xFEBB, 0xFEBC},
+ {0xFEBD, 0xFEBE, 0xFEBF, 0xFEC0},
+ {0xFEC1, 0xFEC2, 0xFEC3, 0xFEC4},
+ {0xFEC5, 0xFEC6, 0xFEC7, 0xFEC8},
+ {0xFEC9, 0xFECA, 0xFECB, 0xFECC},
+ {0xFECD, 0xFECE, 0xFECF, 0xFED0},
+ {0x063B, 0x063B, 0x063B, 0x063B},
+ {0x063C, 0x063C, 0x063C, 0x063C},
+ {0x063D, 0x063D, 0x063D, 0x063D},
+ {0x063E, 0x063E, 0x063E, 0x063E},
+ {0x063F, 0x063F, 0x063F, 0x063F},
+ {0x0640, 0x0640, 0x0640, 0x0640},
+ {0xFED1, 0xFED2, 0xFED3, 0xFED4},
+ {0xFED5, 0xFED6, 0xFED7, 0xFED8},
+ {0xFED9, 0xFEDA, 0xFEDB, 0xFEDC},
+ {0xFEDD, 0xFEDE, 0xFEDF, 0xFEE0},
+ {0xFEE1, 0xFEE2, 0xFEE3, 0xFEE4},
+ {0xFEE5, 0xFEE6, 0xFEE7, 0xFEE8},
+ {0xFEE9, 0xFEEA, 0xFEEB, 0xFEEC},
+ {0xFEED, 0xFEEE, 0xFEED, 0xFEEE},
+ {0xFEEF, 0xFEF0, 0xFBFE, 0xFBFF},
+ {0xFEF1, 0xFEF2, 0xFEF3, 0xFEF4},
+ {0x064B, 0x064B, 0x064B, 0x064B},
+ {0x064C, 0x064C, 0x064C, 0x064C},
+ {0x064D, 0x064D, 0x064D, 0x064D},
+ {0x064E, 0x064E, 0x064E, 0x064E},
+ {0x064F, 0x064F, 0x064F, 0x064F},
+ {0x0650, 0x0650, 0x0650, 0x0650},
+ {0x0651, 0x0651, 0x0651, 0x0651},
+ {0x0652, 0x0652, 0x0652, 0x0652},
+ {0x0653, 0x0653, 0x0653, 0x0653},
+ {0x0654, 0x0654, 0x0654, 0x0654},
+ {0x0655, 0x0655, 0x0655, 0x0655},
+ {0x0656, 0x0656, 0x0656, 0x0656},
+ {0x0657, 0x0657, 0x0657, 0x0657},
+ {0x0658, 0x0658, 0x0658, 0x0658},
+ {0x0659, 0x0659, 0x0659, 0x0659},
+ {0x065A, 0x065A, 0x065A, 0x065A},
+ {0x065B, 0x065B, 0x065B, 0x065B},
+ {0x065C, 0x065C, 0x065C, 0x065C},
+ {0x065D, 0x065D, 0x065D, 0x065D},
+ {0x065E, 0x065E, 0x065E, 0x065E},
+ {0x065F, 0x065F, 0x065F, 0x065F},
+ {0x0660, 0x0660, 0x0660, 0x0660},
+ {0x0661, 0x0661, 0x0661, 0x0661},
+ {0x0662, 0x0662, 0x0662, 0x0662},
+ {0x0663, 0x0663, 0x0663, 0x0663},
+ {0x0664, 0x0664, 0x0664, 0x0664},
+ {0x0665, 0x0665, 0x0665, 0x0665},
+ {0x0666, 0x0666, 0x0666, 0x0666},
+ {0x0667, 0x0667, 0x0667, 0x0667},
+ {0x0668, 0x0668, 0x0668, 0x0668},
+ {0x0669, 0x0669, 0x0669, 0x0669},
+ {0x066A, 0x066A, 0x066A, 0x066A},
+ {0x066B, 0x066B, 0x066B, 0x066B},
+ {0x066C, 0x066C, 0x066C, 0x066C},
+ {0x066D, 0x066D, 0x066D, 0x066D},
+ {0x066E, 0x066E, 0x066E, 0x066E},
+ {0x066F, 0x066F, 0x066F, 0x066F},
+ {0x0670, 0x0670, 0x0670, 0x0670},
+ {0xFB50, 0xFB51, 0xFB50, 0xFB51},
+ {0x0672, 0x0672, 0x0672, 0x0672},
+ {0x0673, 0x0673, 0x0673, 0x0673},
+ {0x0674, 0x0674, 0x0674, 0x0674},
+ {0x0675, 0x0675, 0x0675, 0x0675},
+ {0x0676, 0x0676, 0x0676, 0x0676},
+ {0x0677, 0x0677, 0x0677, 0x0677},
+ {0x0678, 0x0678, 0x0678, 0x0678},
+ {0xFB66, 0xFB67, 0xFB68, 0xFB69},
+ {0xFB5E, 0xFB5F, 0xFB60, 0xFB61},
+ {0xFB52, 0xFB53, 0xFB54, 0xFB55},
+ {0x067C, 0x067C, 0x067C, 0x067C},
+ {0x067D, 0x067D, 0x067D, 0x067D},
+ {0xFB56, 0xFB57, 0xFB58, 0xFB59},
+ {0xFB62, 0xFB63, 0xFB64, 0xFB65},
+ {0xFB5A, 0xFB5B, 0xFB5C, 0xFB5D},
+ {0x0681, 0x0681, 0x0681, 0x0681},
+ {0x0682, 0x0682, 0x0682, 0x0682},
+ {0xFB76, 0xFB77, 0xFB78, 0xFB79},
+ {0xFB72, 0xFB73, 0xFB74, 0xFB75},
+ {0x0685, 0x0685, 0x0685, 0x0685},
+ {0xFB7A, 0xFB7B, 0xFB7C, 0xFB7D},
+ {0xFB7E, 0xFB7F, 0xFB80, 0xFB81},
+ {0xFB88, 0xFB89, 0xFB88, 0xFB89},
+ {0x0689, 0x0689, 0x0689, 0x0689},
+ {0x068A, 0x068A, 0x068A, 0x068A},
+ {0x068B, 0x068B, 0x068B, 0x068B},
+ {0xFB84, 0xFB85, 0xFB84, 0xFB85},
+ {0xFB82, 0xFB83, 0xFB82, 0xFB83},
+ {0xFB86, 0xFB87, 0xFB86, 0xFB87},
+ {0x068F, 0x068F, 0x068F, 0x068F},
+ {0x0690, 0x0690, 0x0690, 0x0690},
+ {0xFB8C, 0xFB8D, 0xFB8C, 0xFB8D},
+ {0x0692, 0x0692, 0x0692, 0x0692},
+ {0x0693, 0x0693, 0x0693, 0x0693},
+ {0x0694, 0x0694, 0x0694, 0x0694},
+ {0x0695, 0x0695, 0x0695, 0x0695},
+ {0x0696, 0x0696, 0x0696, 0x0696},
+ {0x0697, 0x0697, 0x0697, 0x0697},
+ {0xFB8A, 0xFB8B, 0xFB8A, 0xFB8B},
+ {0x0699, 0x0699, 0x0699, 0x0699},
+ {0x069A, 0x069A, 0x069A, 0x069A},
+ {0x069B, 0x069B, 0x069B, 0x069B},
+ {0x069C, 0x069C, 0x069C, 0x069C},
+ {0x069D, 0x069D, 0x069D, 0x069D},
+ {0x069E, 0x069E, 0x069E, 0x069E},
+ {0x069F, 0x069F, 0x069F, 0x069F},
+ {0x06A0, 0x06A0, 0x06A0, 0x06A0},
+ {0x06A1, 0x06A1, 0x06A1, 0x06A1},
+ {0x06A2, 0x06A2, 0x06A2, 0x06A2},
+ {0x06A3, 0x06A3, 0x06A3, 0x06A3},
+ {0xFB6A, 0xFB6B, 0xFB6C, 0xFB6D},
+ {0x06A5, 0x06A5, 0x06A5, 0x06A5},
+ {0xFB6E, 0xFB6F, 0xFB70, 0xFB71},
+ {0x06A7, 0x06A7, 0x06A7, 0x06A7},
+ {0x06A8, 0x06A8, 0x06A8, 0x06A8},
+ {0xFB8E, 0xFB8F, 0xFB90, 0xFB91},
+ {0x06AA, 0x06AA, 0x06AA, 0x06AA},
+ {0x06AB, 0x06AB, 0x06AB, 0x06AB},
+ {0x06AC, 0x06AC, 0x06AC, 0x06AC},
+ {0xFBD3, 0xFBD4, 0xFBD5, 0xFBD6},
+ {0x06AE, 0x06AE, 0x06AE, 0x06AE},
+ {0xFB92, 0xFB93, 0xFB94, 0xFB95},
+ {0x06B0, 0x06B0, 0x06B0, 0x06B0},
+ {0xFB9A, 0xFB9B, 0xFB9C, 0xFB9D},
+ {0x06B2, 0x06B2, 0x06B2, 0x06B2},
+ {0xFB96, 0xFB97, 0xFB98, 0xFB99},
+ {0x06B4, 0x06B4, 0x06B4, 0x06B4},
+ {0x06B5, 0x06B5, 0x06B5, 0x06B5},
+ {0x06B6, 0x06B6, 0x06B6, 0x06B6},
+ {0x06B7, 0x06B7, 0x06B7, 0x06B7},
+ {0x06B8, 0x06B8, 0x06B8, 0x06B8},
+ {0x06B9, 0x06B9, 0x06B9, 0x06B9},
+ {0xFB9E, 0xFB9F, 0xFBE8, 0xFBE9},
+ {0xFBA0, 0xFBA1, 0xFBA2, 0xFBA3},
+ {0x06BC, 0x06BC, 0x06BC, 0x06BC},
+ {0x06BD, 0x06BD, 0x06BD, 0x06BD},
+ {0xFBAA, 0xFBAB, 0xFBAC, 0xFBAD},
+ {0x06BF, 0x06BF, 0x06BF, 0x06BF},
+ {0xFBA4, 0xFBA5, 0xFBA4, 0xFBA5},
+ {0xFBA6, 0xFBA7, 0xFBA8, 0xFBA9},
+ {0x06C2, 0x06C2, 0x06C2, 0x06C2},
+ {0x06C3, 0x06C3, 0x06C3, 0x06C3},
+ {0x06C4, 0x06C4, 0x06C4, 0x06C4},
+ {0xFBE0, 0xFBE1, 0xFBE0, 0xFBE1},
+ {0xFBD9, 0xFBDA, 0xFBD9, 0xFBDA},
+ {0xFBD7, 0xFBD8, 0xFBD7, 0xFBD8},
+ {0xFBDB, 0xFBDC, 0xFBDB, 0xFBDC},
+ {0xFBE2, 0xFBE3, 0xFBE2, 0xFBE3},
+ {0x06CA, 0x06CA, 0x06CA, 0x06CA},
+ {0xFBDE, 0xFBDF, 0xFBDE, 0xFBDF},
+ {0xFBFC, 0xFBFD, 0xFBFE, 0xFBFF},
+ {0x06CD, 0x06CD, 0x06CD, 0x06CD},
+ {0x06CE, 0x06CE, 0x06CE, 0x06CE},
+ {0x06CF, 0x06CF, 0x06CF, 0x06CF},
+ {0xFBE4, 0xFBE5, 0xFBE6, 0xFBE7},
+ {0x06D1, 0x06D1, 0x06D1, 0x06D1},
+ {0xFBAE, 0xFBAF, 0xFBAE, 0xFBAF},
+ {0xFBB0, 0xFBB1, 0xFBB0, 0xFBB1},
+ {0x06D4, 0x06D4, 0x06D4, 0x06D4},
+ {0x06D5, 0x06D5, 0x06D5, 0x06D5},
};
-static const FX_ARAALEF gs_FX_AlefTable[] = {
+
+const FX_ARAALEF gs_FX_AlefTable[] = {
{0x0622, 0xFEF5},
{0x0623, 0xFEF7},
{0x0625, 0xFEF9},
{0x0627, 0xFEFB},
};
-static const FX_ARASHADDA gs_FX_ShaddaTable[] = {
- {0x064C, 0xFC5E}, {0x064D, 0xFC5F}, {0x064E, 0xFC60},
- {0x064F, 0xFC61}, {0x0650, 0xFC62},
+
+const FX_ARASHADDA gs_FX_ShaddaTable[] = {
+ {0x064C, 0xFC5E},
+ {0x064D, 0xFC5F},
+ {0x064E, 0xFC60},
+ {0x064F, 0xFC61},
+ {0x0650, 0xFC62},
};
-FX_LPCARBFORMTABLE FX_GetArabicFormTable(FX_WCHAR unicode) {
+
+} // namespace
+
+const FX_ARBFORMTABLE* FX_GetArabicFormTable(FX_WCHAR unicode) {
if (unicode < 0x622 || unicode > 0x6d5) {
return NULL;
}
@@ -140,9 +237,7 @@ FX_WCHAR FX_GetArabicFromShaddaTable(FX_WCHAR shadda) {
}
return shadda;
}
-#ifdef __cplusplus
-};
-#endif
+
IFX_ArabicChar* IFX_ArabicChar::Create() {
return new CFX_ArabicChar;
}
@@ -168,7 +263,7 @@ FX_WCHAR CFX_ArabicChar::GetFormChar(const CFX_Char* cur,
const CFX_Char* next) const {
FX_CHARTYPE eCur;
FX_WCHAR wCur;
- FX_LPCARBFORMTABLE ft = ParseChar(cur, wCur, eCur);
+ const FX_ARBFORMTABLE* ft = ParseChar(cur, wCur, eCur);
if (eCur < FX_CHARTYPE_ArabicAlef || eCur >= FX_CHARTYPE_ArabicNormal) {
return wCur;
}
@@ -200,9 +295,9 @@ FX_WCHAR CFX_ArabicChar::GetFormChar(const CFX_Char* cur,
}
}
}
-FX_LPCARBFORMTABLE CFX_ArabicChar::ParseChar(const CFX_Char* pTC,
- FX_WCHAR& wChar,
- FX_CHARTYPE& eType) const {
+const FX_ARBFORMTABLE* CFX_ArabicChar::ParseChar(const CFX_Char* pTC,
+ FX_WCHAR& wChar,
+ FX_CHARTYPE& eType) const {
if (pTC == NULL) {
eType = FX_CHARTYPE_Unknown;
wChar = 0xFEFF;
@@ -210,7 +305,7 @@ FX_LPCARBFORMTABLE CFX_ArabicChar::ParseChar(const CFX_Char* pTC,
}
eType = (FX_CHARTYPE)pTC->GetCharType();
wChar = (FX_WCHAR)pTC->m_wCharCode;
- FX_LPCARBFORMTABLE pFT = FX_GetArabicFormTable(wChar);
+ const FX_ARBFORMTABLE* pFT = FX_GetArabicFormTable(wChar);
if (pFT == NULL || eType >= FX_CHARTYPE_ArabicNormal) {
eType = FX_CHARTYPE_Unknown;
}
@@ -1053,77 +1148,3 @@ void FX_BidiLine(CFX_RTFCharArray& chars, int32_t iCount, int32_t iBaseLevel) {
CFX_BidiLineTemplate<CFX_RTFChar> blt;
blt.FX_BidiLine(chars, iCount, iBaseLevel);
}
-IFX_BidiChar* IFX_BidiChar::Create() {
- return new CFX_BidiChar;
-}
-CFX_BidiChar::CFX_BidiChar()
- : m_bSeparateNeutral(TRUE),
- m_iCurStart(0),
- m_iCurCount(0),
- m_iCurBidi(0),
- m_iLastBidi(0),
- m_iLastStart(0),
- m_iLastCount(0) {}
-void CFX_BidiChar::SetPolicy(FX_BOOL bSeparateNeutral) {
- m_bSeparateNeutral = bSeparateNeutral;
-}
-
-FX_BOOL CFX_BidiChar::AppendChar(FX_WCHAR wch) {
- FX_DWORD dwProps = kTextLayoutCodeProperties[(FX_WORD)wch];
- int32_t iBidiCls = (dwProps & FX_BIDICLASSBITSMASK) >> FX_BIDICLASSBITS;
- int32_t iContext = 0;
- switch (iBidiCls) {
- case FX_BIDICLASS_L:
- case FX_BIDICLASS_AN:
- case FX_BIDICLASS_EN:
- iContext = 1;
- break;
- case FX_BIDICLASS_R:
- case FX_BIDICLASS_AL:
- iContext = 2;
- break;
- }
- FX_BOOL bRet = FALSE;
- if (iContext != m_iCurBidi) {
- if (m_bSeparateNeutral) {
- bRet = TRUE;
- } else {
- if (m_iCurBidi == 0) {
- bRet = (m_iCurCount > 0);
- } else {
- bRet = (iContext != 0);
- }
- }
- if (bRet) {
- m_iLastBidi = m_iCurBidi;
- m_iLastStart = m_iCurStart;
- m_iCurStart = m_iCurCount;
- m_iLastCount = m_iCurCount - m_iLastStart;
- }
- if (m_bSeparateNeutral || iContext != 0) {
- m_iCurBidi = iContext;
- }
- }
- m_iCurCount++;
- return bRet;
-}
-FX_BOOL CFX_BidiChar::EndChar() {
- m_iLastBidi = m_iCurBidi;
- m_iLastStart = m_iCurStart;
- m_iCurStart = m_iCurCount;
- m_iLastCount = m_iCurCount - m_iLastStart;
- return m_iLastCount > 0;
-}
-int32_t CFX_BidiChar::GetBidiInfo(int32_t& iStart, int32_t& iCount) {
- iStart = m_iLastStart;
- iCount = m_iLastCount;
- return m_iLastBidi;
-}
-void CFX_BidiChar::Reset() {
- m_iCurStart = 0;
- m_iCurCount = 0;
- m_iCurBidi = 0;
- m_iLastBidi = 0;
- m_iLastStart = 0;
- m_iLastCount = 0;
-}
diff --git a/core/src/fxcrt/fx_arabic.h b/core/src/fxcrt/fx_arabic.h
index 83893e3774..8fde73d5d9 100644
--- a/core/src/fxcrt/fx_arabic.h
+++ b/core/src/fxcrt/fx_arabic.h
@@ -23,9 +23,9 @@ class CFX_ArabicChar : public IFX_ArabicChar {
const CFX_Char* next) const;
protected:
- FX_LPCARBFORMTABLE ParseChar(const CFX_Char* pTC,
- FX_WCHAR& wChar,
- FX_CHARTYPE& eType) const;
+ const FX_ARBFORMTABLE* ParseChar(const CFX_Char* pTC,
+ FX_WCHAR& wChar,
+ FX_CHARTYPE& eType) const;
};
void FX_BidiReverseString(CFX_WideString& wsText,
int32_t iStart,
@@ -207,25 +207,5 @@ int32_t FX_BidiReorderLevel(int32_t iBaseLevel,
void FX_BidiReorder(int32_t iBaseLevel,
CFX_WideString& wsText,
const CFX_Int32Array& levels);
-class CFX_BidiChar final : public IFX_BidiChar {
- public:
- CFX_BidiChar();
- ~CFX_BidiChar() override {}
-
- void SetPolicy(FX_BOOL bSeparateNeutral = TRUE) override;
- FX_BOOL AppendChar(FX_WCHAR wch) override;
- FX_BOOL EndChar() override;
- int32_t GetBidiInfo(int32_t& iStart, int32_t& iCount) override;
- void Reset() override;
-
- private:
- FX_BOOL m_bSeparateNeutral;
- int32_t m_iCurStart;
- int32_t m_iCurCount;
- int32_t m_iCurBidi;
- int32_t m_iLastBidi;
- int32_t m_iLastStart;
- int32_t m_iLastCount;
-};
#endif // CORE_SRC_FXCRT_FX_ARABIC_H_
diff --git a/core/src/fxcrt/fx_bidi.cpp b/core/src/fxcrt/fx_bidi.cpp
new file mode 100644
index 0000000000..0310fa0e94
--- /dev/null
+++ b/core/src/fxcrt/fx_bidi.cpp
@@ -0,0 +1,66 @@
+// 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 "../../include/fxcrt/fx_bidi.h"
+#include "../../include/fxcrt/fx_ucd.h"
+
+CFX_BidiChar::CFX_BidiChar()
+ : m_iCurStart(0),
+ m_iCurCount(0),
+ m_CurBidi(NEUTRAL),
+ m_iLastStart(0),
+ m_iLastCount(0),
+ m_LastBidi(NEUTRAL) {
+}
+
+CFX_BidiChar::~CFX_BidiChar() {
+}
+
+bool CFX_BidiChar::AppendChar(FX_WCHAR wch) {
+ FX_DWORD dwProps = FX_GetUnicodeProperties(wch);
+ int32_t iBidiCls = (dwProps & FX_BIDICLASSBITSMASK) >> FX_BIDICLASSBITS;
+ Direction bidi = NEUTRAL;
+ switch (iBidiCls) {
+ case FX_BIDICLASS_L:
+ case FX_BIDICLASS_AN:
+ case FX_BIDICLASS_EN:
+ bidi = LEFT;
+ break;
+ case FX_BIDICLASS_R:
+ case FX_BIDICLASS_AL:
+ bidi = RIGHT;
+ break;
+ }
+
+ bool bRet = (bidi != m_CurBidi);
+ if (bRet) {
+ SaveCurrentStateToLastState();
+ m_CurBidi = bidi;
+ }
+ m_iCurCount++;
+ return bRet;
+}
+
+bool CFX_BidiChar::EndChar() {
+ SaveCurrentStateToLastState();
+ return m_iLastCount > 0;
+}
+
+CFX_BidiChar::Direction CFX_BidiChar::GetBidiInfo(int32_t* iStart,
+ int32_t* iCount) const {
+ if (iStart)
+ *iStart = m_iLastStart;
+ if (iCount)
+ *iCount = m_iLastCount;
+ return m_LastBidi;
+}
+
+void CFX_BidiChar::SaveCurrentStateToLastState() {
+ m_LastBidi = m_CurBidi;
+ m_iLastStart = m_iCurStart;
+ m_iCurStart = m_iCurCount;
+ m_iLastCount = m_iCurCount - m_iLastStart;
+}
diff --git a/core/src/fxcrt/fx_bidi_unittest.cpp b/core/src/fxcrt/fx_bidi_unittest.cpp
new file mode 100644
index 0000000000..c629cbbdc6
--- /dev/null
+++ b/core/src/fxcrt/fx_bidi_unittest.cpp
@@ -0,0 +1,136 @@
+// Copyright 2015 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.
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "../../include/fxcrt/fx_bidi.h"
+
+namespace {
+
+const FX_WCHAR kNeutralChar = 32;
+const FX_WCHAR kLeftChar = 65;
+const FX_WCHAR kRightChar = 1424;
+
+} // namespace
+
+TEST(fxcrt, BidiCharEmpty) {
+ int32_t start = -1;
+ int32_t count = -1;
+ CFX_BidiChar bidi;
+ CFX_BidiChar::Direction dir = bidi.GetBidiInfo(nullptr, nullptr);
+ EXPECT_EQ(CFX_BidiChar::NEUTRAL, dir);
+
+ dir = bidi.GetBidiInfo(&start, nullptr);
+ EXPECT_EQ(CFX_BidiChar::NEUTRAL, dir);
+ EXPECT_EQ(0, start);
+
+ dir = bidi.GetBidiInfo(nullptr, &count);
+ EXPECT_EQ(CFX_BidiChar::NEUTRAL, dir);
+ EXPECT_EQ(0, count);
+
+ start = -1;
+ count = -1;
+ dir = bidi.GetBidiInfo(&start, &count);
+ EXPECT_EQ(CFX_BidiChar::NEUTRAL, dir);
+ EXPECT_EQ(0, start);
+ EXPECT_EQ(0, count);
+
+ EXPECT_FALSE(bidi.EndChar());
+}
+
+TEST(fxcrt, BidiCharLeft) {
+ int32_t start = -1;
+ int32_t count = -1;
+ CFX_BidiChar bidi;
+
+ EXPECT_TRUE(bidi.AppendChar(kLeftChar));
+ CFX_BidiChar::Direction dir = bidi.GetBidiInfo(&start, &count);
+ EXPECT_EQ(0, start);
+ EXPECT_EQ(0, count);
+
+ EXPECT_FALSE(bidi.AppendChar(kLeftChar));
+ EXPECT_FALSE(bidi.AppendChar(kLeftChar));
+
+ dir = bidi.GetBidiInfo(&start, &count);
+ EXPECT_EQ(CFX_BidiChar::NEUTRAL, dir);
+ EXPECT_EQ(0, start);
+ EXPECT_EQ(0, count);
+
+ EXPECT_TRUE(bidi.EndChar());
+ dir = bidi.GetBidiInfo(&start, &count);
+ EXPECT_EQ(CFX_BidiChar::LEFT, dir);
+ EXPECT_EQ(0, start);
+ EXPECT_EQ(3, count);
+
+ EXPECT_FALSE(bidi.EndChar());
+}
+
+TEST(fxcrt, BidiCharLeftNeutralRight) {
+ int32_t start = -1;
+ int32_t count = -1;
+ CFX_BidiChar bidi;
+
+ EXPECT_TRUE(bidi.AppendChar(kLeftChar));
+ CFX_BidiChar::Direction dir = bidi.GetBidiInfo(&start, &count);
+ EXPECT_EQ(0, start);
+ EXPECT_EQ(0, count);
+
+ EXPECT_FALSE(bidi.AppendChar(kLeftChar));
+ EXPECT_FALSE(bidi.AppendChar(kLeftChar));
+ EXPECT_TRUE(bidi.AppendChar(kNeutralChar));
+ dir = bidi.GetBidiInfo(&start, &count);
+ EXPECT_EQ(0, start);
+ EXPECT_EQ(3, count);
+
+ EXPECT_FALSE(bidi.AppendChar(kNeutralChar));
+ EXPECT_FALSE(bidi.AppendChar(kNeutralChar));
+ EXPECT_FALSE(bidi.AppendChar(kNeutralChar));
+ EXPECT_TRUE(bidi.AppendChar(kRightChar));
+ dir = bidi.GetBidiInfo(&start, &count);
+ EXPECT_EQ(CFX_BidiChar::NEUTRAL, dir);
+ EXPECT_EQ(3, start);
+ EXPECT_EQ(4, count);
+
+ EXPECT_TRUE(bidi.EndChar());
+ dir = bidi.GetBidiInfo(&start, &count);
+ EXPECT_EQ(CFX_BidiChar::RIGHT, dir);
+ EXPECT_EQ(7, start);
+ EXPECT_EQ(1, count);
+
+ EXPECT_FALSE(bidi.EndChar());
+}
+
+TEST(fxcrt, BidiCharLeftRightLeft) {
+ int32_t start = -1;
+ int32_t count = -1;
+ CFX_BidiChar bidi;
+
+ EXPECT_TRUE(bidi.AppendChar(kLeftChar));
+ CFX_BidiChar::Direction dir = bidi.GetBidiInfo(&start, &count);
+ EXPECT_EQ(0, start);
+ EXPECT_EQ(0, count);
+
+ EXPECT_FALSE(bidi.AppendChar(kLeftChar));
+ EXPECT_FALSE(bidi.AppendChar(kLeftChar));
+ EXPECT_TRUE(bidi.AppendChar(kRightChar));
+ dir = bidi.GetBidiInfo(&start, &count);
+ EXPECT_EQ(0, start);
+ EXPECT_EQ(3, count);
+
+ EXPECT_FALSE(bidi.AppendChar(kRightChar));
+ EXPECT_FALSE(bidi.AppendChar(kRightChar));
+ EXPECT_FALSE(bidi.AppendChar(kRightChar));
+ EXPECT_TRUE(bidi.AppendChar(kLeftChar));
+ dir = bidi.GetBidiInfo(&start, &count);
+ EXPECT_EQ(CFX_BidiChar::RIGHT, dir);
+ EXPECT_EQ(3, start);
+ EXPECT_EQ(4, count);
+
+ EXPECT_TRUE(bidi.EndChar());
+ dir = bidi.GetBidiInfo(&start, &count);
+ EXPECT_EQ(CFX_BidiChar::LEFT, dir);
+ EXPECT_EQ(7, start);
+ EXPECT_EQ(1, count);
+
+ EXPECT_FALSE(bidi.EndChar());
+}
diff --git a/core/src/fxcrt/fx_unicode.cpp b/core/src/fxcrt/fx_unicode.cpp
index 67ff009513..105301e0a8 100644
--- a/core/src/fxcrt/fx_unicode.cpp
+++ b/core/src/fxcrt/fx_unicode.cpp
@@ -7,54 +7,56 @@
#include "../../include/fxcrt/fx_ucd.h"
FX_DWORD FX_GetUnicodeProperties(FX_WCHAR wch) {
- return kTextLayoutCodeProperties[(FX_WORD)wch];
+ size_t idx = static_cast<size_t>(wch);
+ if (idx < kTextLayoutCodePropertiesSize)
+ return kTextLayoutCodeProperties[(FX_WORD)wch];
+ return 0;
}
+
FX_BOOL FX_IsCtrlCode(FX_WCHAR ch) {
- FX_DWORD dwRet =
- (kTextLayoutCodeProperties[(FX_WORD)ch] & FX_CHARTYPEBITSMASK);
+ FX_DWORD dwRet = (FX_GetUnicodeProperties(ch) & FX_CHARTYPEBITSMASK);
return dwRet == FX_CHARTYPE_Tab || dwRet == FX_CHARTYPE_Control;
}
-FX_BOOL FX_IsRotationCode(FX_WCHAR ch) {
- return (kTextLayoutCodeProperties[(FX_WORD)ch] & 0x8000) != 0;
-}
-FX_BOOL FX_IsCombinationChar(FX_WCHAR wch) {
- FX_DWORD dwProps =
- (kTextLayoutCodeProperties[(FX_WORD)wch] & FX_CHARTYPEBITSMASK);
- return dwProps == FX_CHARTYPE_Combination;
-}
-FX_BOOL FX_IsBidiChar(FX_WCHAR wch) {
- FX_DWORD dwProps = kTextLayoutCodeProperties[(FX_WORD)wch];
- int32_t iBidiCls = (dwProps & FX_BIDICLASSBITSMASK) >> FX_BIDICLASSBITS;
- return (FX_BIDICLASS_R == iBidiCls || FX_BIDICLASS_AL == iBidiCls);
-}
+
FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch, FX_BOOL bRTL, FX_BOOL bVertical) {
- FX_DWORD dwProps = kTextLayoutCodeProperties[(FX_WORD)wch];
+ FX_DWORD dwProps = FX_GetUnicodeProperties(wch);
FX_DWORD dwTemp = (dwProps & 0xFF800000);
if (bRTL && dwTemp < 0xFF800000) {
- wch = kFXTextLayoutBidiMirror[dwTemp >> 23];
- dwProps = kTextLayoutCodeProperties[(FX_WORD)wch];
+ size_t idx = dwTemp >> 23;
+ if (idx < kFXTextLayoutBidiMirrorSize) {
+ wch = kFXTextLayoutBidiMirror[idx];
+ dwProps = FX_GetUnicodeProperties(wch);
+ }
}
if (bVertical) {
dwTemp = (dwProps & 0x007E0000);
if (dwTemp < 0x007E0000) {
- wch = kFXTextLayoutVerticalMirror[dwTemp >> 17];
+ size_t idx = dwTemp >> 17;
+ if (idx < kFXTextLayoutVerticalMirrorSize)
+ wch = kFXTextLayoutVerticalMirror[idx];
}
}
return wch;
}
+
FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch,
FX_DWORD dwProps,
FX_BOOL bRTL,
FX_BOOL bVertical) {
FX_DWORD dwTemp = (dwProps & 0xFF800000);
if (bRTL && dwTemp < 0xFF800000) {
- wch = kFXTextLayoutBidiMirror[dwTemp >> 23];
- dwProps = kTextLayoutCodeProperties[(FX_WORD)wch];
+ size_t idx = dwTemp >> 23;
+ if (idx < kFXTextLayoutBidiMirrorSize) {
+ wch = kFXTextLayoutBidiMirror[idx];
+ dwProps = FX_GetUnicodeProperties(wch);
+ }
}
if (bVertical) {
dwTemp = (dwProps & 0x007E0000);
if (dwTemp < 0x007E0000) {
- wch = kFXTextLayoutVerticalMirror[dwTemp >> 17];
+ size_t idx = dwTemp >> 17;
+ if (idx < kFXTextLayoutVerticalMirrorSize)
+ wch = kFXTextLayoutVerticalMirror[idx];
}
}
return wch;
diff --git a/pdfium.gyp b/pdfium.gyp
index 991dac4a52..d369c30308 100644
--- a/pdfium.gyp
+++ b/pdfium.gyp
@@ -419,6 +419,7 @@
'sources': [
'core/include/fxcrt/fx_arb.h',
'core/include/fxcrt/fx_basic.h',
+ 'core/include/fxcrt/fx_bidi.h',
'core/include/fxcrt/fx_coordinates.h',
'core/include/fxcrt/fx_ext.h',
'core/include/fxcrt/fx_memory.h',
@@ -449,6 +450,7 @@
'core/src/fxcrt/fx_basic_utf.cpp',
'core/src/fxcrt/fx_basic_util.cpp',
'core/src/fxcrt/fx_basic_wstring.cpp',
+ 'core/src/fxcrt/fx_bidi.cpp',
'core/src/fxcrt/fx_extension.cpp',
'core/src/fxcrt/fx_ucddata.cpp',
'core/src/fxcrt/fx_unicode.cpp',
@@ -766,6 +768,7 @@
'core/src/fxcrt/fx_basic_bstring_unittest.cpp',
'core/src/fxcrt/fx_basic_memmgr_unittest.cpp',
'core/src/fxcrt/fx_basic_wstring_unittest.cpp',
+ 'core/src/fxcrt/fx_bidi_unittest.cpp',
'core/src/fxcrt/fx_system_unittest.cpp',
'testing/fx_string_testhelpers.h',
'testing/fx_string_testhelpers.cpp',
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 23:34:54 +0000