Move CSS code to core

The xfa/fde/css code has no other links into xfa/. This CL moves the css
code to core/fxcrt/css and sets to only build when pdf_enable_xfa is
enabled.

Change-Id: Iefd208e1f83a28b80b567c574e841e87bce310be
Reviewed-on: https://pdfium-review.googlesource.com/9251
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>

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);
-}