diff options
Diffstat (limited to 'xfa/fde/css/cfde_csssyntaxparser.cpp')
| -rw-r--r-- | xfa/fde/css/cfde_csssyntaxparser.cpp | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/xfa/fde/css/cfde_csssyntaxparser.cpp b/xfa/fde/css/cfde_csssyntaxparser.cpp deleted file mode 100644 index 51d99f1992..0000000000 --- a/xfa/fde/css/cfde_csssyntaxparser.cpp +++ /dev/null @@ -1,228 +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/fde/css/cfde_csssyntaxparser.h" - -#include <algorithm> - -#include "core/fxcrt/fx_codepage.h" -#include "core/fxcrt/fx_extension.h" -#include "third_party/base/logging.h" -#include "xfa/fde/css/cfde_cssdeclaration.h" -#include "xfa/fde/css/fde_cssdatatable.h" - -namespace { - -bool IsSelectorStart(wchar_t wch) { - return wch == '.' || wch == '#' || wch == '*' || FXSYS_iswalpha(wch); -} - -} // namespace - -CFDE_CSSSyntaxParser::CFDE_CSSSyntaxParser(const wchar_t* pBuffer, - int32_t iBufferSize) - : CFDE_CSSSyntaxParser(pBuffer, iBufferSize, 32, false) {} - -CFDE_CSSSyntaxParser::CFDE_CSSSyntaxParser(const wchar_t* pBuffer, - int32_t iBufferSize, - int32_t iTextDatSize, - bool bOnlyDeclaration) - : m_iTextDataLen(0), - m_dwCheck(0xFFFFFFFF), - m_eStatus(FDE_CSSSyntaxStatus::None) { - ASSERT(pBuffer && iBufferSize > 0 && iTextDatSize > 0); - m_eMode = bOnlyDeclaration ? FDE_CSSSyntaxMode::PropertyName - : FDE_CSSSyntaxMode::RuleSet; - m_TextData.InitWithSize(iTextDatSize); - m_TextPlane.AttachBuffer(pBuffer, iBufferSize); -} - -CFDE_CSSSyntaxParser::~CFDE_CSSSyntaxParser() {} - -FDE_CSSSyntaxStatus CFDE_CSSSyntaxParser::DoSyntaxParse() { - while (m_eStatus >= FDE_CSSSyntaxStatus::None) { - if (m_TextPlane.IsEOF()) { - if (m_eMode == FDE_CSSSyntaxMode::PropertyValue && - m_TextData.GetLength() > 0) { - SaveTextData(); - m_eStatus = FDE_CSSSyntaxStatus::PropertyValue; - return m_eStatus; - } - m_eStatus = FDE_CSSSyntaxStatus::EOS; - return m_eStatus; - } - wchar_t wch; - while (!m_TextPlane.IsEOF()) { - wch = m_TextPlane.GetChar(); - switch (m_eMode) { - case FDE_CSSSyntaxMode::RuleSet: - switch (wch) { - case '}': - m_TextPlane.MoveNext(); - if (RestoreMode()) - return FDE_CSSSyntaxStatus::DeclClose; - - m_eStatus = FDE_CSSSyntaxStatus::Error; - return m_eStatus; - case '/': - if (m_TextPlane.GetNextChar() == '*') { - m_ModeStack.push(m_eMode); - SwitchMode(FDE_CSSSyntaxMode::Comment); - break; - } - default: - if (wch <= ' ') { - m_TextPlane.MoveNext(); - } else if (IsSelectorStart(wch)) { - SwitchMode(FDE_CSSSyntaxMode::Selector); - return FDE_CSSSyntaxStatus::StyleRule; - } else { - m_eStatus = FDE_CSSSyntaxStatus::Error; - return m_eStatus; - } - break; - } - break; - case FDE_CSSSyntaxMode::Selector: - switch (wch) { - case ',': - m_TextPlane.MoveNext(); - SwitchMode(FDE_CSSSyntaxMode::Selector); - if (m_iTextDataLen > 0) - return FDE_CSSSyntaxStatus::Selector; - break; - case '{': - if (m_TextData.GetLength() > 0) { - SaveTextData(); - return FDE_CSSSyntaxStatus::Selector; - } - m_TextPlane.MoveNext(); - m_ModeStack.push(FDE_CSSSyntaxMode::RuleSet); - SwitchMode(FDE_CSSSyntaxMode::PropertyName); - return FDE_CSSSyntaxStatus::DeclOpen; - case '/': - if (m_TextPlane.GetNextChar() == '*') { - if (SwitchToComment() > 0) - return FDE_CSSSyntaxStatus::Selector; - break; - } - default: - AppendChar(wch); - break; - } - break; - case FDE_CSSSyntaxMode::PropertyName: - switch (wch) { - case ':': - m_TextPlane.MoveNext(); - SwitchMode(FDE_CSSSyntaxMode::PropertyValue); - return FDE_CSSSyntaxStatus::PropertyName; - case '}': - m_TextPlane.MoveNext(); - if (RestoreMode()) - return FDE_CSSSyntaxStatus::DeclClose; - - m_eStatus = FDE_CSSSyntaxStatus::Error; - return m_eStatus; - case '/': - if (m_TextPlane.GetNextChar() == '*') { - if (SwitchToComment() > 0) - return FDE_CSSSyntaxStatus::PropertyName; - break; - } - default: - AppendChar(wch); - break; - } - break; - case FDE_CSSSyntaxMode::PropertyValue: - switch (wch) { - case ';': - m_TextPlane.MoveNext(); - case '}': - SwitchMode(FDE_CSSSyntaxMode::PropertyName); - return FDE_CSSSyntaxStatus::PropertyValue; - case '/': - if (m_TextPlane.GetNextChar() == '*') { - if (SwitchToComment() > 0) - return FDE_CSSSyntaxStatus::PropertyValue; - break; - } - default: - AppendChar(wch); - break; - } - break; - case FDE_CSSSyntaxMode::Comment: - if (wch == '/' && m_TextData.GetLength() > 0 && - m_TextData.GetBuffer()[m_TextData.GetLength() - 1] == '*') { - RestoreMode(); - } else { - m_TextData.AppendChar(wch); - } - m_TextPlane.MoveNext(); - break; - case FDE_CSSSyntaxMode::UnknownRule: - if (wch == ';') - SwitchMode(FDE_CSSSyntaxMode::RuleSet); - m_TextPlane.MoveNext(); - break; - default: - NOTREACHED(); - break; - } - } - } - return m_eStatus; -} - -bool CFDE_CSSSyntaxParser::IsImportEnabled() const { - if ((m_dwCheck & FDE_CSSSYNTAXCHECK_AllowImport) == 0) - return false; - if (m_ModeStack.size() > 1) - return false; - return true; -} - -bool CFDE_CSSSyntaxParser::AppendChar(wchar_t wch) { - m_TextPlane.MoveNext(); - if (m_TextData.GetLength() > 0 || wch > ' ') { - m_TextData.AppendChar(wch); - return true; - } - return false; -} - -int32_t CFDE_CSSSyntaxParser::SaveTextData() { - m_iTextDataLen = m_TextData.TrimEnd(); - m_TextData.Clear(); - return m_iTextDataLen; -} - -void CFDE_CSSSyntaxParser::SwitchMode(FDE_CSSSyntaxMode eMode) { - m_eMode = eMode; - SaveTextData(); -} - -int32_t CFDE_CSSSyntaxParser::SwitchToComment() { - int32_t iLength = m_TextData.GetLength(); - m_ModeStack.push(m_eMode); - SwitchMode(FDE_CSSSyntaxMode::Comment); - return iLength; -} - -bool CFDE_CSSSyntaxParser::RestoreMode() { - if (m_ModeStack.empty()) - return false; - - SwitchMode(m_ModeStack.top()); - m_ModeStack.pop(); - return true; -} - -CFX_WideStringC CFDE_CSSSyntaxParser::GetCurrentString() const { - return CFX_WideStringC(m_TextData.GetBuffer(), m_iTextDataLen); -} |