diff options
Diffstat (limited to 'xfa/fgas/layout/fx_arabic.cpp')
-rw-r--r-- | xfa/fgas/layout/fx_arabic.cpp | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/xfa/fgas/layout/fx_arabic.cpp b/xfa/fgas/layout/fx_arabic.cpp deleted file mode 100644 index 886bb0d66..000000000 --- a/xfa/fgas/layout/fx_arabic.cpp +++ /dev/null @@ -1,231 +0,0 @@ -// 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 "xfa/fgas/layout/fx_arabic.h" - -#include <algorithm> -#include <vector> - -#include "core/fxcrt/fx_memory.h" -#include "core/fxcrt/fx_unicode.h" - -namespace { - -struct FX_ARBFORMTABLE { - uint16_t wIsolated; - uint16_t wFinal; - uint16_t wInitial; - uint16_t wMedial; -}; - -struct FX_ARAALEF { - uint16_t wAlef; - uint16_t wIsolated; -}; - -struct FX_ARASHADDA { - uint16_t wShadda; - uint16_t wIsolated; -}; - -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}, -}; - -const FX_ARBFORMTABLE* GetArabicFormTable(wchar_t unicode) { - if (unicode < 0x622 || unicode > 0x6d5) - return nullptr; - return g_FX_ArabicFormTables + unicode - 0x622; -} - -const FX_ARBFORMTABLE* ParseChar(const CFX_Char* pTC, - wchar_t* wChar, - FX_CHARTYPE* eType) { - if (!pTC) { - *eType = FX_CHARTYPE::kUnknown; - *wChar = 0xFEFF; - return nullptr; - } - - *eType = pTC->GetCharType(); - *wChar = static_cast<wchar_t>(pTC->char_code()); - const FX_ARBFORMTABLE* pFT = GetArabicFormTable(*wChar); - if (!pFT || *eType >= FX_CHARTYPE::kArabicNormal) - *eType = FX_CHARTYPE::kUnknown; - - return pFT; -} - -wchar_t GetArabicFromAlefTable(wchar_t alef) { - static const size_t s_iAlefCount = FX_ArraySize(gs_FX_AlefTable); - for (size_t iStart = 0; iStart < s_iAlefCount; iStart++) { - const FX_ARAALEF& v = gs_FX_AlefTable[iStart]; - if (v.wAlef == alef) - return v.wIsolated; - } - return alef; -} - -} // namespace - -namespace pdfium { -namespace arabic { - -wchar_t GetFormChar(wchar_t wch, wchar_t prev, wchar_t next) { - CFX_Char c(wch); - CFX_Char p(prev); - CFX_Char n(next); - return GetFormChar(&c, &p, &n); -} - -wchar_t GetFormChar(const CFX_Char* cur, - const CFX_Char* prev, - const CFX_Char* next) { - FX_CHARTYPE eCur; - wchar_t wCur; - const FX_ARBFORMTABLE* ft = ParseChar(cur, &wCur, &eCur); - if (eCur < FX_CHARTYPE::kArabicAlef || eCur >= FX_CHARTYPE::kArabicNormal) - return wCur; - - FX_CHARTYPE ePrev; - wchar_t wPrev; - ParseChar(prev, &wPrev, &ePrev); - if (wPrev == 0x0644 && eCur == FX_CHARTYPE::kArabicAlef) - return 0xFEFF; - - FX_CHARTYPE eNext; - wchar_t wNext; - ParseChar(next, &wNext, &eNext); - bool bAlef = (eNext == FX_CHARTYPE::kArabicAlef && wCur == 0x644); - if (ePrev < FX_CHARTYPE::kArabicAlef) { - if (bAlef) - return GetArabicFromAlefTable(wNext); - return (eNext < FX_CHARTYPE::kArabicAlef) ? ft->wIsolated : ft->wInitial; - } - - if (bAlef) { - wCur = GetArabicFromAlefTable(wNext); - return (ePrev != FX_CHARTYPE::kArabicDistortion) ? wCur : ++wCur; - } - - if (ePrev == FX_CHARTYPE::kArabicAlef || ePrev == FX_CHARTYPE::kArabicSpecial) - return (eNext < FX_CHARTYPE::kArabicAlef) ? ft->wIsolated : ft->wInitial; - return (eNext < FX_CHARTYPE::kArabicAlef) ? ft->wFinal : ft->wMedial; -} - -} // namespace arabic -} // namespace pdfium - -wchar_t FX_GetArabicFromShaddaTable(wchar_t shadda) { - static const size_t s_iShaddaCount = FX_ArraySize(gs_FX_ShaddaTable); - for (size_t iStart = 0; iStart < s_iShaddaCount; iStart++) { - const FX_ARASHADDA& v = gs_FX_ShaddaTable[iStart]; - if (v.wShadda == shadda) - return v.wIsolated; - } - return shadda; -} |