diff options
author | Dan Sinclair <dsinclair@chromium.org> | 2016-03-14 13:35:12 -0400 |
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committer | Dan Sinclair <dsinclair@chromium.org> | 2016-03-14 13:35:12 -0400 |
commit | 764ec513eecbebd12781bcc96ce81ed5e736ee92 (patch) | |
tree | 12763fde4be1f10ea1183d92185917b2b587e00b /core/fxcrt/fx_arabic.cpp | |
parent | 97da97662417085774f75c26e535c6fbe70266ae (diff) | |
download | pdfium-764ec513eecbebd12781bcc96ce81ed5e736ee92.tar.xz |
Move core/src/ up to core/.
This CL moves the core/src/ files up to core/ and fixes up the include guards,
includes and build files.
R=tsepez@chromium.org
Review URL: https://codereview.chromium.org/1800523005 .
Diffstat (limited to 'core/fxcrt/fx_arabic.cpp')
-rw-r--r-- | core/fxcrt/fx_arabic.cpp | 970 |
1 files changed, 970 insertions, 0 deletions
diff --git a/core/fxcrt/fx_arabic.cpp b/core/fxcrt/fx_arabic.cpp new file mode 100644 index 0000000000..dfc3d802e5 --- /dev/null +++ b/core/fxcrt/fx_arabic.cpp @@ -0,0 +1,970 @@ +// 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 "core/fxcrt/fx_arabic.h" +#include "core/include/fxcrt/fx_ucd.h" + +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}, +}; + +const FX_ARAALEF gs_FX_AlefTable[] = { + {0x0622, 0xFEF5}, + {0x0623, 0xFEF7}, + {0x0625, 0xFEF9}, + {0x0627, 0xFEFB}, +}; + +const FX_ARASHADDA gs_FX_ShaddaTable[] = { + {0x064C, 0xFC5E}, {0x064D, 0xFC5F}, {0x064E, 0xFC60}, + {0x064F, 0xFC61}, {0x0650, 0xFC62}, +}; + +} // namespace + +const FX_ARBFORMTABLE* FX_GetArabicFormTable(FX_WCHAR unicode) { + if (unicode < 0x622 || unicode > 0x6d5) { + return NULL; + } + return g_FX_ArabicFormTables + unicode - 0x622; +} +FX_WCHAR FX_GetArabicFromAlefTable(FX_WCHAR alef) { + static const int32_t s_iAlefCount = + sizeof(gs_FX_AlefTable) / sizeof(FX_ARAALEF); + for (int32_t iStart = 0; iStart < s_iAlefCount; iStart++) { + const FX_ARAALEF& v = gs_FX_AlefTable[iStart]; + if (v.wAlef == alef) { + return v.wIsolated; + } + } + return alef; +} +FX_WCHAR FX_GetArabicFromShaddaTable(FX_WCHAR shadda) { + static const int32_t s_iShaddaCount = + sizeof(gs_FX_ShaddaTable) / sizeof(FX_ARASHADDA); + for (int32_t iStart = 0; iStart < s_iShaddaCount; iStart++) { + const FX_ARASHADDA& v = gs_FX_ShaddaTable[iStart]; + if (v.wShadda == shadda) { + return v.wIsolated; + } + } + return shadda; +} + +IFX_ArabicChar* IFX_ArabicChar::Create() { + return new CFX_ArabicChar; +} +FX_BOOL CFX_ArabicChar::IsArabicChar(FX_WCHAR wch) const { + FX_DWORD dwRet = + kTextLayoutCodeProperties[(FX_WORD)wch] & FX_CHARTYPEBITSMASK; + return dwRet >= FX_CHARTYPE_ArabicAlef; +} +FX_BOOL CFX_ArabicChar::IsArabicFormChar(FX_WCHAR wch) const { + return (kTextLayoutCodeProperties[(FX_WORD)wch] & FX_CHARTYPEBITSMASK) == + FX_CHARTYPE_ArabicForm; +} +FX_WCHAR CFX_ArabicChar::GetFormChar(FX_WCHAR wch, + FX_WCHAR prev, + FX_WCHAR next) const { + CFX_Char c(wch, kTextLayoutCodeProperties[(FX_WORD)wch]); + CFX_Char p(prev, kTextLayoutCodeProperties[(FX_WORD)prev]); + CFX_Char n(next, kTextLayoutCodeProperties[(FX_WORD)next]); + return GetFormChar(&c, &p, &n); +} +FX_WCHAR CFX_ArabicChar::GetFormChar(const CFX_Char* cur, + const CFX_Char* prev, + const CFX_Char* next) const { + FX_CHARTYPE eCur; + FX_WCHAR wCur; + const FX_ARBFORMTABLE* ft = ParseChar(cur, wCur, eCur); + if (eCur < FX_CHARTYPE_ArabicAlef || eCur >= FX_CHARTYPE_ArabicNormal) { + return wCur; + } + FX_CHARTYPE ePrev; + FX_WCHAR wPrev; + ParseChar(prev, wPrev, ePrev); + if (wPrev == 0x0644 && eCur == FX_CHARTYPE_ArabicAlef) { + return 0xFEFF; + } + FX_CHARTYPE eNext; + FX_WCHAR wNext; + ParseChar(next, wNext, eNext); + bool bAlef = (eNext == FX_CHARTYPE_ArabicAlef && wCur == 0x644); + if (ePrev < FX_CHARTYPE_ArabicAlef) { + if (bAlef) { + return FX_GetArabicFromAlefTable(wNext); + } else { + return (eNext < FX_CHARTYPE_ArabicAlef) ? ft->wIsolated : ft->wInitial; + } + } else { + if (bAlef) { + wCur = FX_GetArabicFromAlefTable(wNext); + return (ePrev != FX_CHARTYPE_ArabicDistortion) ? wCur : ++wCur; + } else if (ePrev == FX_CHARTYPE_ArabicAlef || + ePrev == FX_CHARTYPE_ArabicSpecial) { + return (eNext < FX_CHARTYPE_ArabicAlef) ? ft->wIsolated : ft->wInitial; + } else { + return (eNext < FX_CHARTYPE_ArabicAlef) ? ft->wFinal : ft->wMedial; + } + } +} +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; + return NULL; + } + eType = (FX_CHARTYPE)pTC->GetCharType(); + wChar = (FX_WCHAR)pTC->m_wCharCode; + const FX_ARBFORMTABLE* pFT = FX_GetArabicFormTable(wChar); + if (pFT == NULL || eType >= FX_CHARTYPE_ArabicNormal) { + eType = FX_CHARTYPE_Unknown; + } + return pFT; +} +void FX_BidiReverseString(CFX_WideString& wsText, + int32_t iStart, + int32_t iCount) { + FXSYS_assert(iStart > -1 && iStart < wsText.GetLength()); + FXSYS_assert(iCount >= 0 && iStart + iCount <= wsText.GetLength()); + FX_WCHAR wch; + FX_WCHAR* pStart = (FX_WCHAR*)(const FX_WCHAR*)wsText; + pStart += iStart; + FX_WCHAR* pEnd = pStart + iCount - 1; + while (pStart < pEnd) { + wch = *pStart; + *pStart++ = *pEnd; + *pEnd-- = wch; + } +} +void FX_BidiSetDeferredRun(CFX_Int32Array& values, + int32_t iStart, + int32_t iCount, + int32_t iValue) { + FXSYS_assert(iStart > -1 && iStart <= values.GetSize()); + FXSYS_assert(iStart - iCount > -1); + for (int32_t i = iStart - 1; i >= iStart - iCount; i--) { + values.SetAt(i, iValue); + } +} +const int32_t gc_FX_BidiNTypes[] = { + FX_BIDICLASS_N, FX_BIDICLASS_L, FX_BIDICLASS_R, FX_BIDICLASS_AN, + FX_BIDICLASS_EN, FX_BIDICLASS_AL, FX_BIDICLASS_NSM, FX_BIDICLASS_CS, + FX_BIDICLASS_ES, FX_BIDICLASS_ET, FX_BIDICLASS_BN, FX_BIDICLASS_BN, + FX_BIDICLASS_N, FX_BIDICLASS_B, FX_BIDICLASS_RLO, FX_BIDICLASS_RLE, + FX_BIDICLASS_LRO, FX_BIDICLASS_LRE, FX_BIDICLASS_PDF, FX_BIDICLASS_ON, +}; +void FX_BidiClassify(const CFX_WideString& wsText, + CFX_Int32Array& classes, + FX_BOOL bWS) { + FXSYS_assert(wsText.GetLength() == classes.GetSize()); + int32_t iCount = wsText.GetLength(); + const FX_WCHAR* pwsStart = (const FX_WCHAR*)wsText; + FX_WCHAR wch; + int32_t iCls; + if (bWS) { + for (int32_t i = 0; i < iCount; i++) { + wch = *pwsStart++; + iCls = + ((kTextLayoutCodeProperties[(FX_WORD)wch] & FX_BIDICLASSBITSMASK) >> + FX_BIDICLASSBITS); + classes.SetAt(i, iCls); + } + } else { + for (int32_t i = 0; i < iCount; i++) { + wch = *pwsStart++; + iCls = + ((kTextLayoutCodeProperties[(FX_WORD)wch] & FX_BIDICLASSBITSMASK) >> + FX_BIDICLASSBITS); + classes.SetAt(i, gc_FX_BidiNTypes[iCls]); + } + } +} +int32_t FX_BidiResolveExplicit(int32_t iBaseLevel, + int32_t iDirection, + CFX_Int32Array& classes, + CFX_Int32Array& levels, + int32_t iStart, + int32_t iCount, + int32_t iNest) { + FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL && iNest >= 0); + FXSYS_assert(classes.GetSize() == levels.GetSize()); + FXSYS_assert(iStart >= 0 && iStart < classes.GetSize()); + FXSYS_assert(iCount >= 0 && iStart + iCount <= classes.GetSize()); + if (iCount < 1) { + return 0; + } + + int32_t iSize = classes.GetSize(); + int32_t i = iStart, iCur, iCls; + for (; i < iSize && iCount > 0; i++, iCount--) { + iCur = iCls = classes.GetAt(i); + + if (iDirection != FX_BIDICLASS_N) { + iCls = iDirection; + } + if (iCur != FX_BIDICLASS_BN) { + classes.SetAt(i, iCls); + } + levels.SetAt(i, iBaseLevel); + } + return i - iStart; +} +const int32_t gc_FX_BidiWeakStates[][10] = { + {FX_BWSao, FX_BWSxl, FX_BWSxr, FX_BWScn, FX_BWScn, FX_BWSxa, FX_BWSxa, + FX_BWSao, FX_BWSao, FX_BWSao}, + {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSxr, + FX_BWSro, FX_BWSro, FX_BWSrt}, + {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSxl, + FX_BWSlo, FX_BWSlo, FX_BWSlt}, + {FX_BWSao, FX_BWSxl, FX_BWSxr, FX_BWScn, FX_BWScn, FX_BWSxa, FX_BWSao, + FX_BWSao, FX_BWSao, FX_BWSao}, + {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSro, + FX_BWSro, FX_BWSro, FX_BWSrt}, + {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSlo, + FX_BWSlo, FX_BWSlo, FX_BWSlt}, + {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSrt, + FX_BWSro, FX_BWSro, FX_BWSrt}, + {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSlt, + FX_BWSlo, FX_BWSlo, FX_BWSlt}, + {FX_BWSao, FX_BWSxl, FX_BWSxr, FX_BWScn, FX_BWScn, FX_BWSxa, FX_BWScn, + FX_BWSac, FX_BWSao, FX_BWSao}, + {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSra, + FX_BWSrc, FX_BWSro, FX_BWSrt}, + {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSre, + FX_BWSrs, FX_BWSrs, FX_BWSret}, + {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSla, + FX_BWSlc, FX_BWSlo, FX_BWSlt}, + {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSle, + FX_BWSls, FX_BWSls, FX_BWSlet}, + {FX_BWSao, FX_BWSxl, FX_BWSxr, FX_BWScn, FX_BWScn, FX_BWSxa, FX_BWSao, + FX_BWSao, FX_BWSao, FX_BWSao}, + {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSro, + FX_BWSro, FX_BWSro, FX_BWSrt}, + {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSro, + FX_BWSro, FX_BWSro, FX_BWSrt}, + {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSlo, + FX_BWSlo, FX_BWSlo, FX_BWSlt}, + {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSlo, + FX_BWSlo, FX_BWSlo, FX_BWSlt}, + {FX_BWSro, FX_BWSxl, FX_BWSxr, FX_BWSra, FX_BWSre, FX_BWSxa, FX_BWSret, + FX_BWSro, FX_BWSro, FX_BWSret}, + {FX_BWSlo, FX_BWSxl, FX_BWSxr, FX_BWSla, FX_BWSle, FX_BWSxa, FX_BWSlet, + FX_BWSlo, FX_BWSlo, FX_BWSlet}, +}; +const int32_t gc_FX_BidiWeakActions[][10] = { + {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxA, FX_BWAxxR, + FX_BWAxxR, FX_BWAxxN, FX_BWAxxN, FX_BWAxxN}, + {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxE, FX_BWAxxR, + FX_BWAxxR, FX_BWAxxN, FX_BWAxxN, FX_BWAxIx}, + {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxL, FX_BWAxxR, + FX_BWAxxL, FX_BWAxxN, FX_BWAxxN, FX_BWAxIx}, + {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxA, FX_BWAxxR, + FX_BWAxxN, FX_BWAxxN, FX_BWAxxN, FX_BWAxxN}, + {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxE, FX_BWAxxR, + FX_BWAxxN, FX_BWAxxN, FX_BWAxxN, FX_BWAxIx}, + {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxL, FX_BWAxxR, + FX_BWAxxN, FX_BWAxxN, FX_BWAxxN, FX_BWAxIx}, + {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWAExE, FX_BWANxR, + FX_BWAxIx, FX_BWANxN, FX_BWANxN, FX_BWAxIx}, + {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWALxL, FX_BWANxR, + FX_BWAxIx, FX_BWANxN, FX_BWANxN, FX_BWAxIx}, + {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxA, FX_BWAxxR, + FX_BWAxxA, FX_BWAxIx, FX_BWAxxN, FX_BWAxxN}, + {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxE, FX_BWAxxR, + FX_BWAxxA, FX_BWAxIx, FX_BWAxxN, FX_BWAxIx}, + {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxE, FX_BWAxxR, + FX_BWAxxE, FX_BWAxIx, FX_BWAxIx, FX_BWAxxE}, + {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxL, FX_BWAxxR, + FX_BWAxxA, FX_BWAxIx, FX_BWAxxN, FX_BWAxIx}, + {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxL, FX_BWAxxR, + FX_BWAxxL, FX_BWAxIx, FX_BWAxIx, FX_BWAxxL}, + {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWAAxx, FX_BWAAxA, FX_BWANxR, + FX_BWANxN, FX_BWANxN, FX_BWANxN, FX_BWANxN}, + {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWAAxx, FX_BWANxE, FX_BWANxR, + FX_BWANxN, FX_BWANxN, FX_BWANxN, FX_BWANIx}, + {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWAExE, FX_BWANxR, + FX_BWANxN, FX_BWANxN, FX_BWANxN, FX_BWANIx}, + {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWAAxx, FX_BWANxL, FX_BWANxR, + FX_BWANxN, FX_BWANxN, FX_BWANxN, FX_BWANIx}, + {FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWANxx, FX_BWALxL, FX_BWANxR, + FX_BWANxN, FX_BWANxN, FX_BWANxN, FX_BWANIx}, + {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxE, FX_BWAxxR, + FX_BWAxxE, FX_BWAxxN, FX_BWAxxN, FX_BWAxxE}, + {FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxx, FX_BWAxxL, FX_BWAxxR, + FX_BWAxxL, FX_BWAxxN, FX_BWAxxN, FX_BWAxxL}, +}; +void FX_BidiResolveWeak(int32_t iBaseLevel, + CFX_Int32Array& classes, + CFX_Int32Array& levels) { + FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL); + FXSYS_assert(classes.GetSize() == levels.GetSize()); + int32_t iSize = classes.GetSize(); + if (iSize < 1) { + return; + } + iSize--; + int32_t iLevelCur = iBaseLevel; + int32_t iState = FX_IsOdd(iBaseLevel) ? FX_BWSxr : FX_BWSxl; + int32_t i = 0, iCount = 0, iClsCur, iClsRun, iClsNew, iAction; + for (; i <= iSize; i++) { + iClsCur = classes.GetAt(i); + + FXSYS_assert(iClsCur <= FX_BIDICLASS_BN); + iAction = gc_FX_BidiWeakActions[iState][iClsCur]; + iClsRun = FX_BidiGetDeferredType(iAction); + if (iClsRun != FX_BIDIWEAKACTION_XX && iCount > 0) { + FX_BidiSetDeferredRun(classes, i, iCount, iClsRun); + iCount = 0; + } + iClsNew = FX_BidiGetResolvedType(iAction); + if (iClsNew != FX_BIDIWEAKACTION_XX) { + classes.SetAt(i, iClsNew); + } + if (FX_BIDIWEAKACTION_IX & iAction) { + iCount++; + } + iState = gc_FX_BidiWeakStates[iState][iClsCur]; + } + iClsCur = FX_BidiDirection(iLevelCur); + iClsRun = FX_BidiGetDeferredType(gc_FX_BidiWeakActions[iState][iClsCur]); + if (iClsRun != FX_BIDIWEAKACTION_XX && iCount > 0) { + FX_BidiSetDeferredRun(classes, i, iCount, iClsRun); + } +} +const int32_t gc_FX_BidiNeutralStates[][5] = { + {FX_BNSrn, FX_BNSl, FX_BNSr, FX_BNSr, FX_BNSr}, + {FX_BNSln, FX_BNSl, FX_BNSr, FX_BNSa, FX_BNSl}, + {FX_BNSrn, FX_BNSl, FX_BNSr, FX_BNSr, FX_BNSr}, + {FX_BNSln, FX_BNSl, FX_BNSr, FX_BNSa, FX_BNSl}, + {FX_BNSna, FX_BNSl, FX_BNSr, FX_BNSa, FX_BNSl}, + {FX_BNSna, FX_BNSl, FX_BNSr, FX_BNSa, FX_BNSl}, +}; +const int32_t gc_FX_BidiNeutralActions[][5] = { + {FX_BNAIn, 0, 0, 0, 0}, + {FX_BNAIn, 0, 0, 0, FX_BCL}, + {FX_BNAIn, FX_BNAEn, FX_BNARn, FX_BNARn, FX_BNARn}, + {FX_BNAIn, FX_BNALn, FX_BNAEn, FX_BNAEn, FX_BNALnL}, + {FX_BNAIn, 0, 0, 0, FX_BCL}, + {FX_BNAIn, FX_BNAEn, FX_BNARn, FX_BNARn, FX_BNAEn}, +}; +int32_t FX_BidiGetDeferredNeutrals(int32_t iAction, int32_t iLevel) { + iAction = (iAction >> 4) & 0xF; + if (iAction == (FX_BIDINEUTRALACTION_En >> 4)) { + return FX_BidiDirection(iLevel); + } else { + return iAction; + } +} +int32_t FX_BidiGetResolvedNeutrals(int32_t iAction) { + iAction = (iAction & 0xF); + if (iAction == FX_BIDINEUTRALACTION_In) { + return 0; + } else { + return iAction; + } +} +void FX_BidiResolveNeutrals(int32_t iBaseLevel, + CFX_Int32Array& classes, + const CFX_Int32Array& levels) { + FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL); + FXSYS_assert(classes.GetSize() == levels.GetSize()); + int32_t iSize = classes.GetSize(); + if (iSize < 1) { + return; + } + iSize--; + int32_t iLevel = iBaseLevel; + int32_t iState = FX_IsOdd(iBaseLevel) ? FX_BNSr : FX_BNSl; + int32_t i = 0, iCount = 0, iClsCur, iClsRun, iClsNew, iAction; + for (; i <= iSize; i++) { + iClsCur = classes.GetAt(i); + if (iClsCur == FX_BIDICLASS_BN) { + if (iCount) { + iCount++; + } + continue; + } + FXSYS_assert(iClsCur < FX_BIDICLASS_AL); + iAction = gc_FX_BidiNeutralActions[iState][iClsCur]; + iClsRun = FX_BidiGetDeferredNeutrals(iAction, iLevel); + if (iClsRun != FX_BIDICLASS_N && iCount > 0) { + FX_BidiSetDeferredRun(classes, i, iCount, iClsRun); + iCount = 0; + } + iClsNew = FX_BidiGetResolvedNeutrals(iAction); + if (iClsNew != FX_BIDICLASS_N) { + classes.SetAt(i, iClsNew); + } + if (FX_BIDINEUTRALACTION_In & iAction) { + iCount++; + } + iState = gc_FX_BidiNeutralStates[iState][iClsCur]; + iLevel = levels.GetAt(i); + } + iClsCur = FX_BidiDirection(iLevel); + iClsRun = FX_BidiGetDeferredNeutrals( + gc_FX_BidiNeutralActions[iState][iClsCur], iLevel); + if (iClsRun != FX_BIDICLASS_N && iCount > 0) { + FX_BidiSetDeferredRun(classes, i, iCount, iClsRun); + } +} +const int32_t gc_FX_BidiAddLevel[][4] = { + {0, 1, 2, 2}, + {1, 0, 1, 1}, +}; +void FX_BidiResolveImplicit(const CFX_Int32Array& classes, + CFX_Int32Array& levels) { + FXSYS_assert(classes.GetSize() == levels.GetSize()); + int32_t iSize = classes.GetSize(); + if (iSize < 1) { + return; + } + iSize--; + int32_t iCls, iLevel; + for (int32_t i = 0; i <= iSize; i++) { + iCls = classes.GetAt(i); + if (iCls == FX_BIDICLASS_BN) { + continue; + } + FXSYS_assert(iCls > FX_BIDICLASS_ON && iCls < FX_BIDICLASS_AL); + iLevel = levels.GetAt(i); + iLevel += gc_FX_BidiAddLevel[FX_IsOdd(iLevel)][iCls - 1]; + levels.SetAt(i, iLevel); + } +} +void FX_BidiResolveWhitespace(int32_t iBaseLevel, + const CFX_Int32Array& classes, + CFX_Int32Array& levels) { + FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL); + FXSYS_assert(classes.GetSize() == levels.GetSize()); + int32_t iSize = classes.GetSize(); + if (iSize < 1) { + return; + } + iSize--; + int32_t iLevel = iBaseLevel; + int32_t i = 0, iCount = 0; + for (; i <= iSize; i++) { + switch (classes.GetAt(i)) { + case FX_BIDICLASS_WS: + iCount++; + break; + case FX_BIDICLASS_RLE: + case FX_BIDICLASS_LRE: + case FX_BIDICLASS_LRO: + case FX_BIDICLASS_RLO: + case FX_BIDICLASS_PDF: + case FX_BIDICLASS_BN: + levels.SetAt(i, iLevel); + iCount++; + break; + case FX_BIDICLASS_S: + case FX_BIDICLASS_B: + if (iCount > 0) { + FX_BidiSetDeferredRun(levels, i, iCount, iBaseLevel); + } + levels.SetAt(i, iBaseLevel); + iCount = 0; + break; + default: + iCount = 0; + break; + } + iLevel = levels.GetAt(i); + } + if (iCount > 0) { + FX_BidiSetDeferredRun(levels, i, iCount, iBaseLevel); + } +} +int32_t FX_BidiReorderLevel(int32_t iBaseLevel, + CFX_WideString& wsText, + const CFX_Int32Array& levels, + int32_t iStart, + FX_BOOL bReverse) { + FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL); + FXSYS_assert(wsText.GetLength() == levels.GetSize()); + FXSYS_assert(iStart >= 0 && iStart < wsText.GetLength()); + int32_t iSize = wsText.GetLength(); + if (iSize < 1) { + return 0; + } + bReverse = bReverse || FX_IsOdd(iBaseLevel); + int32_t i = iStart, iLevel; + for (; i < iSize; i++) { + if ((iLevel = levels.GetAt(i)) == iBaseLevel) { + continue; + } + if (iLevel < iBaseLevel) { + break; + } + i += FX_BidiReorderLevel(iBaseLevel + 1, wsText, levels, i, bReverse) - 1; + } + int32_t iCount = i - iStart; + if (bReverse && iCount > 1) { + FX_BidiReverseString(wsText, iStart, iCount); + } + return iCount; +} +void FX_BidiReorder(int32_t iBaseLevel, + CFX_WideString& wsText, + const CFX_Int32Array& levels) { + FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL); + FXSYS_assert(wsText.GetLength() == levels.GetSize()); + int32_t iSize = wsText.GetLength(); + if (iSize < 1) { + return; + } + int32_t i = 0; + while (i < iSize) { + i += FX_BidiReorderLevel(iBaseLevel, wsText, levels, i, FALSE); + } +} +void FX_BidiLine(CFX_WideString& wsText, int32_t iBaseLevel) { + int32_t iLength = wsText.GetLength(); + if (iLength < 2) { + return; + } + CFX_Int32Array classes, levels; + classes.SetAtGrow(iLength - 1, 0); + levels.SetAtGrow(iLength - 1, 0); + FX_BidiClassify(wsText, classes, FALSE); + FX_BidiResolveExplicit(iBaseLevel, FX_BIDICLASS_N, classes, levels, 0, + iLength, 0); + FX_BidiResolveWeak(iBaseLevel, classes, levels); + FX_BidiResolveNeutrals(iBaseLevel, classes, levels); + FX_BidiResolveImplicit(classes, levels); + FX_BidiClassify(wsText, classes, TRUE); + FX_BidiResolveWhitespace(iBaseLevel, classes, levels); + FX_BidiReorder(iBaseLevel, wsText, levels); + classes.RemoveAll(); + levels.RemoveAll(); +} +template <class baseType> +class CFX_BidiLineTemplate { + public: + void FX_BidiReverseString(CFX_ArrayTemplate<baseType>& chars, + int32_t iStart, + int32_t iCount) { + FXSYS_assert(iStart > -1 && iStart < chars.GetSize()); + FXSYS_assert(iCount >= 0 && iStart + iCount <= chars.GetSize()); + baseType *pStart, *pEnd; + int32_t iEnd = iStart + iCount - 1, iTemp; + while (iStart < iEnd) { + pStart = chars.GetDataPtr(iStart++); + pEnd = chars.GetDataPtr(iEnd--); + iTemp = pStart->m_iBidiPos; + pStart->m_iBidiPos = pEnd->m_iBidiPos; + pEnd->m_iBidiPos = iTemp; + } + } + void FX_BidiSetDeferredRun(CFX_ArrayTemplate<baseType>& chars, + FX_BOOL bClass, + int32_t iStart, + int32_t iCount, + int32_t iValue) { + FXSYS_assert(iStart > -1 && iStart <= chars.GetSize()); + FXSYS_assert(iStart - iCount > -1); + baseType* pTC; + int32_t iLast = iStart - iCount; + if (bClass) { + for (int32_t i = iStart - 1; i >= iLast; i--) { + pTC = chars.GetDataPtr(i); + pTC->m_iBidiClass = (int16_t)iValue; + } + } else { + for (int32_t i = iStart - 1; i >= iLast; i--) { + pTC = chars.GetDataPtr(i); + pTC->m_iBidiLevel = (int16_t)iValue; + } + } + } + void FX_BidiClassify(CFX_ArrayTemplate<baseType>& chars, + int32_t iCount, + FX_BOOL bWS) { + FXSYS_assert(iCount > -1 && iCount <= chars.GetSize()); + baseType* pTC; + if (bWS) { + for (int32_t i = 0; i < iCount; i++) { + pTC = chars.GetDataPtr(i); + pTC->m_iBidiClass = + (int16_t)(pTC->m_dwCharProps & FX_BIDICLASSBITSMASK) >> + FX_BIDICLASSBITS; + } + } else { + for (int32_t i = 0; i < iCount; i++) { + pTC = chars.GetDataPtr(i); + pTC->m_iBidiClass = (int16_t) + gc_FX_BidiNTypes[(pTC->m_dwCharProps & FX_BIDICLASSBITSMASK) >> + FX_BIDICLASSBITS]; + } + } + } + void FX_BidiResolveExplicit(CFX_ArrayTemplate<baseType>& chars, + int32_t iCount, + int32_t iBaseLevel) { + FXSYS_assert(iCount > -1 && iCount <= chars.GetSize()); + FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL); + if (iCount < 1) { + return; + } + baseType* pTC; + for (int32_t i = 0; i < iCount; i++) { + pTC = chars.GetDataPtr(i); + pTC->m_iBidiLevel = (int16_t)iBaseLevel; + } + } + void FX_BidiResolveWeak(CFX_ArrayTemplate<baseType>& chars, + int32_t iCount, + int32_t iBaseLevel) { + FXSYS_assert(iCount > -1 && iCount <= chars.GetSize()); + iCount--; + if (iCount < 1) { + return; + } + baseType *pTC, *pTCNext; + int32_t iLevelCur = iBaseLevel; + int32_t iState = FX_IsOdd(iBaseLevel) ? FX_BWSxr : FX_BWSxl; + int32_t i = 0, iNum = 0, iClsCur, iClsRun, iClsNew, iAction; + for (; i <= iCount; i++) { + pTC = chars.GetDataPtr(i); + iClsCur = pTC->m_iBidiClass; + if (iClsCur == FX_BIDICLASS_BN) { + pTC->m_iBidiLevel = (int16_t)iLevelCur; + if (i == iCount && iLevelCur != iBaseLevel) { + iClsCur = FX_BidiDirection(iLevelCur); + pTC->m_iBidiClass = (int16_t)iClsCur; + } else if (i < iCount) { + pTCNext = chars.GetDataPtr(i + 1); + int32_t iLevelNext, iLevelNew; + iClsNew = pTCNext->m_iBidiClass; + iLevelNext = pTCNext->m_iBidiLevel; + if (iClsNew != FX_BIDICLASS_BN && iLevelCur != iLevelNext) { + iLevelNew = iLevelNext; + if (iLevelCur > iLevelNew) { + iLevelNew = iLevelCur; + } + pTC->m_iBidiLevel = (int16_t)iLevelNew; + iClsCur = FX_BidiDirection(iLevelNew); + pTC->m_iBidiClass = (int16_t)iClsCur; + iLevelCur = iLevelNext; + } else { + if (iNum > 0) { + iNum++; + } + continue; + } + } else { + if (iNum > 0) { + iNum++; + } + continue; + } + } + FXSYS_assert(iClsCur <= FX_BIDICLASS_BN); + iAction = gc_FX_BidiWeakActions[iState][iClsCur]; + iClsRun = FX_BidiGetDeferredType(iAction); + if (iClsRun != FX_BIDIWEAKACTION_XX && iNum > 0) { + FX_BidiSetDeferredRun(chars, TRUE, i, iNum, iClsRun); + iNum = 0; + } + iClsNew = FX_BidiGetResolvedType(iAction); + if (iClsNew != FX_BIDIWEAKACTION_XX) { + pTC->m_iBidiClass = (int16_t)iClsNew; + } + if (FX_BIDIWEAKACTION_IX & iAction) { + iNum++; + } + iState = gc_FX_BidiWeakStates[iState][iClsCur]; + } + if (iNum > 0) { + iClsCur = FX_BidiDirection(iBaseLevel); + iClsRun = FX_BidiGetDeferredType(gc_FX_BidiWeakActions[iState][iClsCur]); + if (iClsRun != FX_BIDIWEAKACTION_XX) { + FX_BidiSetDeferredRun(chars, TRUE, i, iNum, iClsRun); + } + } + } + void FX_BidiResolveNeutrals(CFX_ArrayTemplate<baseType>& chars, + int32_t iCount, + int32_t iBaseLevel) { + FXSYS_assert(iCount > -1 && iCount <= chars.GetSize()); + FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL); + iCount--; + if (iCount < 1) { + return; + } + baseType* pTC; + int32_t iLevel = iBaseLevel; + int32_t iState = FX_IsOdd(iBaseLevel) ? FX_BNSr : FX_BNSl; + int32_t i = 0, iNum = 0, iClsCur, iClsRun, iClsNew, iAction; + for (; i <= iCount; i++) { + pTC = chars.GetDataPtr(i); + iClsCur = pTC->m_iBidiClass; + if (iClsCur == FX_BIDICLASS_BN) { + if (iNum) { + iNum++; + } + continue; + } + FXSYS_assert(iClsCur < FX_BIDICLASS_AL); + iAction = gc_FX_BidiNeutralActions[iState][iClsCur]; + iClsRun = FX_BidiGetDeferredNeutrals(iAction, iLevel); + if (iClsRun != FX_BIDICLASS_N && iNum > 0) { + FX_BidiSetDeferredRun(chars, TRUE, i, iNum, iClsRun); + iNum = 0; + } + iClsNew = FX_BidiGetResolvedNeutrals(iAction); + if (iClsNew != FX_BIDICLASS_N) { + pTC->m_iBidiClass = (int16_t)iClsNew; + } + if (FX_BIDINEUTRALACTION_In & iAction) { + iNum++; + } + iState = gc_FX_BidiNeutralStates[iState][iClsCur]; + iLevel = pTC->m_iBidiLevel; + } + if (iNum > 0) { + iClsCur = FX_BidiDirection(iLevel); + iClsRun = FX_BidiGetDeferredNeutrals( + gc_FX_BidiNeutralActions[iState][iClsCur], iLevel); + if (iClsRun != FX_BIDICLASS_N) { + FX_BidiSetDeferredRun(chars, TRUE, i, iNum, iClsRun); + } + } + } + void FX_BidiResolveImplicit(CFX_ArrayTemplate<baseType>& chars, + int32_t iCount) { + FXSYS_assert(iCount > -1 && iCount <= chars.GetSize()); + baseType* pTC; + int32_t iCls, iLevel; + for (int32_t i = 0; i < iCount; i++) { + pTC = chars.GetDataPtr(i); + iCls = pTC->m_iBidiClass; + if (iCls == FX_BIDICLASS_BN) { + continue; + } + FXSYS_assert(iCls > FX_BIDICLASS_ON && iCls < FX_BIDICLASS_AL); + iLevel = pTC->m_iBidiLevel; + iLevel += gc_FX_BidiAddLevel[FX_IsOdd(iLevel)][iCls - 1]; + pTC->m_iBidiLevel = (int16_t)iLevel; + } + } + void FX_BidiResolveWhitespace(CFX_ArrayTemplate<baseType>& chars, + int32_t iCount, + int32_t iBaseLevel) { + FXSYS_assert(iCount > -1 && iCount <= chars.GetSize()); + FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL); + if (iCount < 1) { + return; + } + iCount--; + int32_t iLevel = iBaseLevel; + int32_t i = 0, iNum = 0; + baseType* pTC; + for (; i <= iCount; i++) { + pTC = chars.GetDataPtr(i); + switch (pTC->m_iBidiClass) { + case FX_BIDICLASS_WS: + iNum++; + break; + case FX_BIDICLASS_RLE: + case FX_BIDICLASS_LRE: + case FX_BIDICLASS_LRO: + case FX_BIDICLASS_RLO: + case FX_BIDICLASS_PDF: + case FX_BIDICLASS_BN: + pTC->m_iBidiLevel = (int16_t)iLevel; + iNum++; + break; + case FX_BIDICLASS_S: + case FX_BIDICLASS_B: + if (iNum > 0) { + FX_BidiSetDeferredRun(chars, FALSE, i, iNum, iBaseLevel); + } + pTC->m_iBidiLevel = (int16_t)iBaseLevel; + iNum = 0; + break; + default: + iNum = 0; + break; + } + iLevel = pTC->m_iBidiLevel; + } + if (iNum > 0) { + FX_BidiSetDeferredRun(chars, FALSE, i, iNum, iBaseLevel); + } + } + int32_t FX_BidiReorderLevel(CFX_ArrayTemplate<baseType>& chars, + int32_t iCount, + int32_t iBaseLevel, + int32_t iStart, + FX_BOOL bReverse) { + FXSYS_assert(iCount > -1 && iCount <= chars.GetSize()); + FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL); + FXSYS_assert(iStart >= 0 && iStart < iCount); + if (iCount < 1) { + return 0; + } + baseType* pTC; + bReverse = bReverse || FX_IsOdd(iBaseLevel); + int32_t i = iStart, iLevel; + for (; i < iCount; i++) { + pTC = chars.GetDataPtr(i); + if ((iLevel = pTC->m_iBidiLevel) == iBaseLevel) { + continue; + } + if (iLevel < iBaseLevel) { + break; + } + i += FX_BidiReorderLevel(chars, iCount, iBaseLevel + 1, i, bReverse) - 1; + } + int32_t iNum = i - iStart; + if (bReverse && iNum > 1) { + FX_BidiReverseString(chars, iStart, iNum); + } + return iNum; + } + void FX_BidiReorder(CFX_ArrayTemplate<baseType>& chars, + int32_t iCount, + int32_t iBaseLevel) { + FXSYS_assert(iCount > -1 && iCount <= chars.GetSize()); + FXSYS_assert(iBaseLevel >= 0 && iBaseLevel <= FX_BIDIMAXLEVEL); + int32_t i = 0; + while (i < iCount) { + i += FX_BidiReorderLevel(chars, iCount, iBaseLevel, i, FALSE); + } + } + void FX_BidiPosition(CFX_ArrayTemplate<baseType>& chars, int32_t iCount) { + FXSYS_assert(iCount > -1 && iCount <= chars.GetSize()); + baseType* pTC; + int32_t i = 0; + while (i < iCount) { + pTC = chars.GetDataPtr(i); + pTC = chars.GetDataPtr(pTC->m_iBidiPos); + pTC->m_iBidiOrder = i++; + } + } + + void FX_BidiLine(CFX_ArrayTemplate<baseType>& chars, + int32_t iCount, + int32_t iBaseLevel) { + FXSYS_assert(iCount > -1 && iCount <= chars.GetSize()); + if (iCount < 2) { + return; + } + FX_BidiClassify(chars, iCount, FALSE); + FX_BidiResolveExplicit(chars, iCount, iBaseLevel); + FX_BidiResolveWeak(chars, iCount, iBaseLevel); + FX_BidiResolveNeutrals(chars, iCount, iBaseLevel); + FX_BidiResolveImplicit(chars, iCount); + FX_BidiClassify(chars, iCount, TRUE); + FX_BidiResolveWhitespace(chars, iCount, iBaseLevel); + FX_BidiReorder(chars, iCount, iBaseLevel); + FX_BidiPosition(chars, iCount); + } +}; +void FX_BidiLine(CFX_TxtCharArray& chars, int32_t iCount, int32_t iBaseLevel) { + CFX_BidiLineTemplate<CFX_TxtChar> blt; + blt.FX_BidiLine(chars, iCount, iBaseLevel); +} +void FX_BidiLine(CFX_RTFCharArray& chars, int32_t iCount, int32_t iBaseLevel) { + CFX_BidiLineTemplate<CFX_RTFChar> blt; + blt.FX_BidiLine(chars, iCount, iBaseLevel); +} |