diff options
Diffstat (limited to 'core/fxcrt/xml/cfx_xmlsyntaxparser.cpp')
| -rw-r--r-- | core/fxcrt/xml/cfx_xmlsyntaxparser.cpp | 694 |
1 files changed, 0 insertions, 694 deletions
diff --git a/core/fxcrt/xml/cfx_xmlsyntaxparser.cpp b/core/fxcrt/xml/cfx_xmlsyntaxparser.cpp deleted file mode 100644 index 1fb51b7d52..0000000000 --- a/core/fxcrt/xml/cfx_xmlsyntaxparser.cpp +++ /dev/null @@ -1,694 +0,0 @@ -// Copyright 2017 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/xml/cfx_xmlsyntaxparser.h" - -#include <algorithm> -#include <cwctype> -#include <iterator> - -#include "core/fxcrt/fx_extension.h" -#include "core/fxcrt/fx_safe_types.h" - -namespace { - -const uint32_t kMaxCharRange = 0x10ffff; - -bool IsXMLWhiteSpace(wchar_t ch) { - return ch == L' ' || ch == 0x0A || ch == 0x0D || ch == 0x09; -} - -struct FX_XMLNAMECHAR { - uint16_t wStart; - uint16_t wEnd; - bool bStartChar; -}; - -const FX_XMLNAMECHAR g_XMLNameChars[] = { - {L'-', L'.', false}, {L'0', L'9', false}, {L':', L':', false}, - {L'A', L'Z', true}, {L'_', L'_', true}, {L'a', L'z', true}, - {0xB7, 0xB7, false}, {0xC0, 0xD6, true}, {0xD8, 0xF6, true}, - {0xF8, 0x02FF, true}, {0x0300, 0x036F, false}, {0x0370, 0x037D, true}, - {0x037F, 0x1FFF, true}, {0x200C, 0x200D, true}, {0x203F, 0x2040, false}, - {0x2070, 0x218F, true}, {0x2C00, 0x2FEF, true}, {0x3001, 0xD7FF, true}, - {0xF900, 0xFDCF, true}, {0xFDF0, 0xFFFD, true}, -}; - - -int32_t GetUTF8EncodeLength(const std::vector<wchar_t>& src, - FX_FILESIZE iSrcLen) { - uint32_t unicode = 0; - int32_t iDstNum = 0; - const wchar_t* pSrc = src.data(); - while (iSrcLen-- > 0) { - unicode = *pSrc++; - int nbytes = 0; - if ((uint32_t)unicode < 0x80) { - nbytes = 1; - } else if ((uint32_t)unicode < 0x800) { - nbytes = 2; - } else if ((uint32_t)unicode < 0x10000) { - nbytes = 3; - } else if ((uint32_t)unicode < 0x200000) { - nbytes = 4; - } else if ((uint32_t)unicode < 0x4000000) { - nbytes = 5; - } else { - nbytes = 6; - } - iDstNum += nbytes; - } - return iDstNum; -} - -} // namespace - -// static -bool CFX_XMLSyntaxParser::IsXMLNameChar(wchar_t ch, bool bFirstChar) { - auto* it = std::lower_bound( - std::begin(g_XMLNameChars), std::end(g_XMLNameChars), ch, - [](const FX_XMLNAMECHAR& arg, wchar_t ch) { return arg.wEnd < ch; }); - return it != std::end(g_XMLNameChars) && ch >= it->wStart && - (!bFirstChar || it->bStartChar); -} - -CFX_XMLSyntaxParser::CFX_XMLSyntaxParser( - const RetainPtr<CFX_SeekableStreamProxy>& pStream) - : m_pStream(pStream), - m_iXMLPlaneSize(1024), - m_iCurrentPos(0), - m_iCurrentNodeNum(-1), - m_iLastNodeNum(-1), - m_iParsedBytes(0), - m_ParsedChars(0), - m_iBufferChars(0), - m_bEOS(false), - m_Start(0), - m_End(0), - m_iAllocStep(m_BlockBuffer.GetAllocStep()), - m_pCurrentBlock(nullptr), - m_iIndexInBlock(0), - m_iTextDataLength(0), - m_syntaxParserResult(FX_XmlSyntaxResult::None), - m_syntaxParserState(FDE_XmlSyntaxState::Text), - m_wQuotationMark(0), - m_iEntityStart(-1) { - ASSERT(pStream); - - m_CurNode.iNodeNum = -1; - m_CurNode.eNodeType = FX_XMLNODE_Unknown; - - m_iXMLPlaneSize = - std::min(m_iXMLPlaneSize, - pdfium::base::checked_cast<size_t>(m_pStream->GetLength())); - m_iCurrentPos = m_pStream->GetBOMLength(); - - FX_SAFE_SIZE_T alloc_size_safe = m_iXMLPlaneSize; - alloc_size_safe += 1; // For NUL. - if (!alloc_size_safe.IsValid() || alloc_size_safe.ValueOrDie() <= 0) { - m_syntaxParserResult = FX_XmlSyntaxResult::Error; - return; - } - - m_Buffer.resize(pdfium::base::ValueOrDieForType<size_t>(alloc_size_safe)); - - m_BlockBuffer.InitBuffer(); - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); -} - -CFX_XMLSyntaxParser::~CFX_XMLSyntaxParser() {} - -FX_XmlSyntaxResult CFX_XMLSyntaxParser::DoSyntaxParse() { - if (m_syntaxParserResult == FX_XmlSyntaxResult::Error || - m_syntaxParserResult == FX_XmlSyntaxResult::EndOfString) { - return m_syntaxParserResult; - } - - FX_FILESIZE iStreamLength = m_pStream->GetLength(); - FX_FILESIZE iPos; - - FX_XmlSyntaxResult syntaxParserResult = FX_XmlSyntaxResult::None; - while (true) { - if (m_Start >= m_End) { - if (m_bEOS || m_iCurrentPos >= iStreamLength) { - m_syntaxParserResult = FX_XmlSyntaxResult::EndOfString; - return m_syntaxParserResult; - } - m_ParsedChars += m_End; - m_iParsedBytes = m_iCurrentPos; - if (m_pStream->GetPosition() != m_iCurrentPos) - m_pStream->Seek(CFX_SeekableStreamProxy::From::Begin, m_iCurrentPos); - - m_iBufferChars = - m_pStream->ReadString(m_Buffer.data(), m_iXMLPlaneSize, &m_bEOS); - iPos = m_pStream->GetPosition(); - if (m_iBufferChars < 1) { - m_iCurrentPos = iStreamLength; - m_syntaxParserResult = FX_XmlSyntaxResult::EndOfString; - return m_syntaxParserResult; - } - m_iCurrentPos = iPos; - m_Start = 0; - m_End = m_iBufferChars; - } - - while (m_Start < m_End) { - wchar_t ch = m_Buffer[m_Start]; - switch (m_syntaxParserState) { - case FDE_XmlSyntaxState::Text: - if (ch == L'<') { - if (!m_BlockBuffer.IsEmpty()) { - m_iTextDataLength = m_BlockBuffer.GetDataLength(); - m_BlockBuffer.Reset(true); - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - m_iEntityStart = -1; - syntaxParserResult = FX_XmlSyntaxResult::Text; - } else { - m_Start++; - m_syntaxParserState = FDE_XmlSyntaxState::Node; - } - } else { - ParseTextChar(ch); - } - break; - case FDE_XmlSyntaxState::Node: - if (ch == L'!') { - m_Start++; - m_syntaxParserState = FDE_XmlSyntaxState::SkipCommentOrDecl; - } else if (ch == L'/') { - m_Start++; - m_syntaxParserState = FDE_XmlSyntaxState::CloseElement; - } else if (ch == L'?') { - m_iLastNodeNum++; - m_iCurrentNodeNum = m_iLastNodeNum; - m_CurNode.iNodeNum = m_iLastNodeNum; - m_CurNode.eNodeType = FX_XMLNODE_Instruction; - m_XMLNodeStack.push(m_CurNode); - m_Start++; - m_syntaxParserState = FDE_XmlSyntaxState::Target; - syntaxParserResult = FX_XmlSyntaxResult::InstructionOpen; - } else { - m_iLastNodeNum++; - m_iCurrentNodeNum = m_iLastNodeNum; - m_CurNode.iNodeNum = m_iLastNodeNum; - m_CurNode.eNodeType = FX_XMLNODE_Element; - m_XMLNodeStack.push(m_CurNode); - m_syntaxParserState = FDE_XmlSyntaxState::Tag; - syntaxParserResult = FX_XmlSyntaxResult::ElementOpen; - } - break; - case FDE_XmlSyntaxState::Target: - case FDE_XmlSyntaxState::Tag: - if (!IsXMLNameChar(ch, m_BlockBuffer.IsEmpty())) { - if (m_BlockBuffer.IsEmpty()) { - m_syntaxParserResult = FX_XmlSyntaxResult::Error; - return m_syntaxParserResult; - } - - m_iTextDataLength = m_BlockBuffer.GetDataLength(); - m_BlockBuffer.Reset(true); - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - if (m_syntaxParserState != FDE_XmlSyntaxState::Target) - syntaxParserResult = FX_XmlSyntaxResult::TagName; - else - syntaxParserResult = FX_XmlSyntaxResult::TargetName; - - m_syntaxParserState = FDE_XmlSyntaxState::AttriName; - } else { - if (m_iIndexInBlock == m_iAllocStep) { - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - if (!m_pCurrentBlock) { - return FX_XmlSyntaxResult::Error; - } - } - m_pCurrentBlock[m_iIndexInBlock++] = ch; - m_BlockBuffer.IncrementDataLength(); - m_Start++; - } - break; - case FDE_XmlSyntaxState::AttriName: - if (m_BlockBuffer.IsEmpty() && IsXMLWhiteSpace(ch)) { - m_Start++; - break; - } - if (!IsXMLNameChar(ch, m_BlockBuffer.IsEmpty())) { - if (m_BlockBuffer.IsEmpty()) { - if (m_CurNode.eNodeType == FX_XMLNODE_Element) { - if (ch == L'>' || ch == L'/') { - m_syntaxParserState = FDE_XmlSyntaxState::BreakElement; - break; - } - } else if (m_CurNode.eNodeType == FX_XMLNODE_Instruction) { - if (ch == L'?') { - m_syntaxParserState = FDE_XmlSyntaxState::CloseInstruction; - m_Start++; - } else { - m_syntaxParserState = FDE_XmlSyntaxState::TargetData; - } - break; - } - m_syntaxParserResult = FX_XmlSyntaxResult::Error; - return m_syntaxParserResult; - } else { - if (m_CurNode.eNodeType == FX_XMLNODE_Instruction) { - if (ch != '=' && !IsXMLWhiteSpace(ch)) { - m_syntaxParserState = FDE_XmlSyntaxState::TargetData; - break; - } - } - m_iTextDataLength = m_BlockBuffer.GetDataLength(); - m_BlockBuffer.Reset(true); - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - m_syntaxParserState = FDE_XmlSyntaxState::AttriEqualSign; - syntaxParserResult = FX_XmlSyntaxResult::AttriName; - } - } else { - if (m_iIndexInBlock == m_iAllocStep) { - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - if (!m_pCurrentBlock) { - return FX_XmlSyntaxResult::Error; - } - } - m_pCurrentBlock[m_iIndexInBlock++] = ch; - m_BlockBuffer.IncrementDataLength(); - m_Start++; - } - break; - case FDE_XmlSyntaxState::AttriEqualSign: - if (IsXMLWhiteSpace(ch)) { - m_Start++; - break; - } - if (ch != L'=') { - if (m_CurNode.eNodeType == FX_XMLNODE_Instruction) { - m_syntaxParserState = FDE_XmlSyntaxState::TargetData; - break; - } - m_syntaxParserResult = FX_XmlSyntaxResult::Error; - return m_syntaxParserResult; - } else { - m_syntaxParserState = FDE_XmlSyntaxState::AttriQuotation; - m_Start++; - } - break; - case FDE_XmlSyntaxState::AttriQuotation: - if (IsXMLWhiteSpace(ch)) { - m_Start++; - break; - } - if (ch != L'\"' && ch != L'\'') { - m_syntaxParserResult = FX_XmlSyntaxResult::Error; - return m_syntaxParserResult; - } else { - m_wQuotationMark = ch; - m_syntaxParserState = FDE_XmlSyntaxState::AttriValue; - m_Start++; - } - break; - case FDE_XmlSyntaxState::AttriValue: - if (ch == m_wQuotationMark) { - if (m_iEntityStart > -1) { - m_syntaxParserResult = FX_XmlSyntaxResult::Error; - return m_syntaxParserResult; - } - m_iTextDataLength = m_BlockBuffer.GetDataLength(); - m_wQuotationMark = 0; - m_BlockBuffer.Reset(true); - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - m_Start++; - m_syntaxParserState = FDE_XmlSyntaxState::AttriName; - syntaxParserResult = FX_XmlSyntaxResult::AttriValue; - } else { - ParseTextChar(ch); - } - break; - case FDE_XmlSyntaxState::CloseInstruction: - if (ch != L'>') { - if (m_iIndexInBlock == m_iAllocStep) { - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - if (!m_pCurrentBlock) { - return FX_XmlSyntaxResult::Error; - } - } - m_pCurrentBlock[m_iIndexInBlock++] = ch; - m_BlockBuffer.IncrementDataLength(); - m_syntaxParserState = FDE_XmlSyntaxState::TargetData; - } else if (!m_BlockBuffer.IsEmpty()) { - m_iTextDataLength = m_BlockBuffer.GetDataLength(); - m_BlockBuffer.Reset(true); - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - syntaxParserResult = FX_XmlSyntaxResult::TargetData; - } else { - m_Start++; - if (m_XMLNodeStack.empty()) { - m_syntaxParserResult = FX_XmlSyntaxResult::Error; - return m_syntaxParserResult; - } - m_XMLNodeStack.pop(); - if (!m_XMLNodeStack.empty()) { - m_CurNode = m_XMLNodeStack.top(); - } else { - m_CurNode.iNodeNum = -1; - m_CurNode.eNodeType = FX_XMLNODE_Unknown; - } - m_iCurrentNodeNum = m_CurNode.iNodeNum; - m_BlockBuffer.Reset(true); - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - m_syntaxParserState = FDE_XmlSyntaxState::Text; - syntaxParserResult = FX_XmlSyntaxResult::InstructionClose; - } - break; - case FDE_XmlSyntaxState::BreakElement: - if (ch == L'>') { - m_syntaxParserState = FDE_XmlSyntaxState::Text; - syntaxParserResult = FX_XmlSyntaxResult::ElementBreak; - } else if (ch == L'/') { - m_syntaxParserState = FDE_XmlSyntaxState::CloseElement; - } else { - m_syntaxParserResult = FX_XmlSyntaxResult::Error; - return m_syntaxParserResult; - } - m_Start++; - break; - case FDE_XmlSyntaxState::CloseElement: - if (!IsXMLNameChar(ch, m_BlockBuffer.IsEmpty())) { - if (ch == L'>') { - if (m_XMLNodeStack.empty()) { - m_syntaxParserResult = FX_XmlSyntaxResult::Error; - return m_syntaxParserResult; - } - m_XMLNodeStack.pop(); - if (!m_XMLNodeStack.empty()) { - m_CurNode = m_XMLNodeStack.top(); - } else { - m_CurNode.iNodeNum = -1; - m_CurNode.eNodeType = FX_XMLNODE_Unknown; - } - m_iCurrentNodeNum = m_CurNode.iNodeNum; - m_iTextDataLength = m_BlockBuffer.GetDataLength(); - m_BlockBuffer.Reset(true); - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - m_syntaxParserState = FDE_XmlSyntaxState::Text; - syntaxParserResult = FX_XmlSyntaxResult::ElementClose; - } else if (!IsXMLWhiteSpace(ch)) { - m_syntaxParserResult = FX_XmlSyntaxResult::Error; - return m_syntaxParserResult; - } - } else { - if (m_iIndexInBlock == m_iAllocStep) { - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - if (!m_pCurrentBlock) { - return FX_XmlSyntaxResult::Error; - } - } - m_pCurrentBlock[m_iIndexInBlock++] = ch; - m_BlockBuffer.IncrementDataLength(); - } - m_Start++; - break; - case FDE_XmlSyntaxState::SkipCommentOrDecl: - if (FXSYS_wcsnicmp(m_Buffer.data() + m_Start, L"--", 2) == 0) { - m_Start += 2; - m_syntaxParserState = FDE_XmlSyntaxState::SkipComment; - } else if (FXSYS_wcsnicmp(m_Buffer.data() + m_Start, L"[CDATA[", 7) == - 0) { - m_Start += 7; - m_syntaxParserState = FDE_XmlSyntaxState::SkipCData; - } else { - m_syntaxParserState = FDE_XmlSyntaxState::SkipDeclNode; - m_SkipChar = L'>'; - m_SkipStack.push(L'>'); - } - break; - case FDE_XmlSyntaxState::SkipCData: { - if (FXSYS_wcsnicmp(m_Buffer.data() + m_Start, L"]]>", 3) == 0) { - m_Start += 3; - syntaxParserResult = FX_XmlSyntaxResult::CData; - m_iTextDataLength = m_BlockBuffer.GetDataLength(); - m_BlockBuffer.Reset(true); - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - m_syntaxParserState = FDE_XmlSyntaxState::Text; - } else { - if (m_iIndexInBlock == m_iAllocStep) { - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - if (!m_pCurrentBlock) - return FX_XmlSyntaxResult::Error; - } - m_pCurrentBlock[m_iIndexInBlock++] = ch; - m_BlockBuffer.IncrementDataLength(); - m_Start++; - } - break; - } - case FDE_XmlSyntaxState::SkipDeclNode: - if (m_SkipChar == L'\'' || m_SkipChar == L'\"') { - m_Start++; - if (ch != m_SkipChar) - break; - - m_SkipStack.pop(); - if (m_SkipStack.empty()) - m_syntaxParserState = FDE_XmlSyntaxState::Text; - else - m_SkipChar = m_SkipStack.top(); - } else { - switch (ch) { - case L'<': - m_SkipChar = L'>'; - m_SkipStack.push(L'>'); - break; - case L'[': - m_SkipChar = L']'; - m_SkipStack.push(L']'); - break; - case L'(': - m_SkipChar = L')'; - m_SkipStack.push(L')'); - break; - case L'\'': - m_SkipChar = L'\''; - m_SkipStack.push(L'\''); - break; - case L'\"': - m_SkipChar = L'\"'; - m_SkipStack.push(L'\"'); - break; - default: - if (ch == m_SkipChar) { - m_SkipStack.pop(); - if (m_SkipStack.empty()) { - if (m_BlockBuffer.GetDataLength() >= 9) - (void)m_BlockBuffer.GetTextData(0, 7); - - m_iTextDataLength = m_BlockBuffer.GetDataLength(); - m_BlockBuffer.Reset(true); - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - m_syntaxParserState = FDE_XmlSyntaxState::Text; - } else { - m_SkipChar = m_SkipStack.top(); - } - } - break; - } - if (!m_SkipStack.empty()) { - if (m_iIndexInBlock == m_iAllocStep) { - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - if (!m_pCurrentBlock) { - return FX_XmlSyntaxResult::Error; - } - } - m_pCurrentBlock[m_iIndexInBlock++] = ch; - m_BlockBuffer.IncrementDataLength(); - } - m_Start++; - } - break; - case FDE_XmlSyntaxState::SkipComment: - if (FXSYS_wcsnicmp(m_Buffer.data() + m_Start, L"-->", 3) == 0) { - m_Start += 2; - m_syntaxParserState = FDE_XmlSyntaxState::Text; - } - - m_Start++; - break; - case FDE_XmlSyntaxState::TargetData: - if (IsXMLWhiteSpace(ch)) { - if (m_BlockBuffer.IsEmpty()) { - m_Start++; - break; - } - if (m_wQuotationMark == 0) { - m_iTextDataLength = m_BlockBuffer.GetDataLength(); - m_wQuotationMark = 0; - m_BlockBuffer.Reset(true); - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - m_Start++; - syntaxParserResult = FX_XmlSyntaxResult::TargetData; - break; - } - } - if (ch == '?') { - m_syntaxParserState = FDE_XmlSyntaxState::CloseInstruction; - m_Start++; - } else if (ch == '\"') { - if (m_wQuotationMark == 0) { - m_wQuotationMark = ch; - m_Start++; - } else if (ch == m_wQuotationMark) { - m_iTextDataLength = m_BlockBuffer.GetDataLength(); - m_wQuotationMark = 0; - m_BlockBuffer.Reset(true); - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - m_Start++; - syntaxParserResult = FX_XmlSyntaxResult::TargetData; - } else { - m_syntaxParserResult = FX_XmlSyntaxResult::Error; - return m_syntaxParserResult; - } - } else { - if (m_iIndexInBlock == m_iAllocStep) { - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - if (!m_pCurrentBlock) { - return FX_XmlSyntaxResult::Error; - } - } - m_pCurrentBlock[m_iIndexInBlock++] = ch; - m_BlockBuffer.IncrementDataLength(); - m_Start++; - } - break; - default: - break; - } - if (syntaxParserResult != FX_XmlSyntaxResult::None) - return syntaxParserResult; - } - } - return FX_XmlSyntaxResult::Text; -} - -int32_t CFX_XMLSyntaxParser::GetStatus() const { - if (!m_pStream) - return -1; - - int32_t iStreamLength = m_pStream->GetLength(); - if (iStreamLength < 1) - return 100; - - if (m_syntaxParserResult == FX_XmlSyntaxResult::Error) - return -1; - - if (m_syntaxParserResult == FX_XmlSyntaxResult::EndOfString) - return 100; - return m_iParsedBytes * 100 / iStreamLength; -} - -FX_FILESIZE CFX_XMLSyntaxParser::GetCurrentBinaryPos() const { - if (!m_pStream) - return 0; - - int32_t nDstLen = GetUTF8EncodeLength(m_Buffer, m_Start); - return m_iParsedBytes + nDstLen; -} - -void CFX_XMLSyntaxParser::ParseTextChar(wchar_t character) { - if (m_iIndexInBlock == m_iAllocStep) { - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - if (!m_pCurrentBlock) - return; - } - - m_pCurrentBlock[m_iIndexInBlock++] = character; - m_BlockBuffer.IncrementDataLength(); - if (m_iEntityStart > -1 && character == L';') { - WideString csEntity = m_BlockBuffer.GetTextData( - m_iEntityStart + 1, - m_BlockBuffer.GetDataLength() - 1 - m_iEntityStart - 1); - int32_t iLen = csEntity.GetLength(); - if (iLen > 0) { - if (csEntity[0] == L'#') { - uint32_t ch = 0; - wchar_t w; - if (iLen > 1 && csEntity[1] == L'x') { - for (int32_t i = 2; i < iLen; i++) { - w = csEntity[i]; - if (std::iswdigit(w)) - ch = (ch << 4) + w - L'0'; - else if (w >= L'A' && w <= L'F') - ch = (ch << 4) + w - 55; - else if (w >= L'a' && w <= L'f') - ch = (ch << 4) + w - 87; - else - break; - } - } else { - for (int32_t i = 1; i < iLen; i++) { - w = csEntity[i]; - if (!std::iswdigit(w)) - break; - ch = ch * 10 + w - L'0'; - } - } - if (ch > kMaxCharRange) - ch = ' '; - - character = static_cast<wchar_t>(ch); - if (character != 0) { - m_BlockBuffer.SetTextChar(m_iEntityStart, character); - m_iEntityStart++; - } - } else { - if (csEntity.Compare(L"amp") == 0) { - m_BlockBuffer.SetTextChar(m_iEntityStart, L'&'); - m_iEntityStart++; - } else if (csEntity.Compare(L"lt") == 0) { - m_BlockBuffer.SetTextChar(m_iEntityStart, L'<'); - m_iEntityStart++; - } else if (csEntity.Compare(L"gt") == 0) { - m_BlockBuffer.SetTextChar(m_iEntityStart, L'>'); - m_iEntityStart++; - } else if (csEntity.Compare(L"apos") == 0) { - m_BlockBuffer.SetTextChar(m_iEntityStart, L'\''); - m_iEntityStart++; - } else if (csEntity.Compare(L"quot") == 0) { - m_BlockBuffer.SetTextChar(m_iEntityStart, L'\"'); - m_iEntityStart++; - } - } - } - if (m_iEntityStart >= 0 && - m_BlockBuffer.GetDataLength() > static_cast<size_t>(m_iEntityStart)) { - m_BlockBuffer.DeleteTextChars(m_BlockBuffer.GetDataLength() - - m_iEntityStart); - } - std::tie(m_pCurrentBlock, m_iIndexInBlock) = - m_BlockBuffer.GetAvailableBlock(); - m_iEntityStart = -1; - } else if (m_iEntityStart < 0 && character == L'&') { - m_iEntityStart = m_BlockBuffer.GetDataLength() - 1; - } - m_Start++; -} |