Move core/fxcrt XML files to core/fxcrt/xml

This CL moves the other XML files contained in core/fxcrt into the
core/fxcrt/xml directory to contain all the fxcrt XML files in one place.

Change-Id: I9faefb1f311bf167b75dfbb7b9b52f25515e3c31
Reviewed-on: https://pdfium-review.googlesource.com/3378
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

1 files changed, 0 insertions, 918 deletions

diff --git a/core/fxcrt/fx_xml_parser.cpp b/core/fxcrt/fx_xml_parser.cpp
deleted file mode 100644
index da4815bfd9..0000000000
--- a/core/fxcrt/fx_xml_parser.cpp
+++ /dev/null
@@ -1,918 +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 <algorithm>
-#include <memory>
-#include <vector>
-
-#include "core/fxcrt/fx_ext.h"
-#include "core/fxcrt/fx_xml.h"
-#include "core/fxcrt/xml_int.h"
-#include "third_party/base/ptr_util.h"
-#include "third_party/base/stl_util.h"
-
-namespace {
-
-#define FXCRTM_XML_CHARTYPE_Normal 0x00
-#define FXCRTM_XML_CHARTYPE_SpaceChar 0x01
-#define FXCRTM_XML_CHARTYPE_Letter 0x02
-#define FXCRTM_XML_CHARTYPE_Digital 0x04
-#define FXCRTM_XML_CHARTYPE_NameIntro 0x08
-#define FXCRTM_XML_CHARTYPE_NameChar 0x10
-#define FXCRTM_XML_CHARTYPE_HexDigital 0x20
-#define FXCRTM_XML_CHARTYPE_HexLowerLetter 0x40
-#define FXCRTM_XML_CHARTYPE_HexUpperLetter 0x60
-#define FXCRTM_XML_CHARTYPE_HexChar 0x60
-
-const uint8_t g_FXCRT_XML_ByteTypes[256] = {
-    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00,
-    0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x34, 0x08, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x7A, 0x7A, 0x7A, 0x7A, 0x7A, 0x7A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x00, 0x00, 0x00, 0x00, 0x18,
-    0x00, 0x5A, 0x5A, 0x5A, 0x5A, 0x5A, 0x5A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A,
-    0x1A, 0x1A, 0x01, 0x01,
-};
-
-bool g_FXCRT_XML_IsWhiteSpace(uint8_t ch) {
-  return !!(g_FXCRT_XML_ByteTypes[ch] & FXCRTM_XML_CHARTYPE_SpaceChar);
-}
-
-bool g_FXCRT_XML_IsDigital(uint8_t ch) {
-  return !!(g_FXCRT_XML_ByteTypes[ch] & FXCRTM_XML_CHARTYPE_Digital);
-}
-
-bool g_FXCRT_XML_IsNameIntro(uint8_t ch) {
-  return !!(g_FXCRT_XML_ByteTypes[ch] & FXCRTM_XML_CHARTYPE_NameIntro);
-}
-
-bool g_FXCRT_XML_IsNameChar(uint8_t ch) {
-  return !!(g_FXCRT_XML_ByteTypes[ch] & FXCRTM_XML_CHARTYPE_NameChar);
-}
-
-class CXML_DataBufAcc : public IFX_BufferedReadStream {
- public:
-  template <typename T, typename... Args>
-  friend CFX_RetainPtr<T> pdfium::MakeRetain(Args&&... args);
-
-  // IFX_BufferedReadStream
-  bool IsEOF() override;
-  FX_FILESIZE GetPosition() override;
-  size_t ReadBlock(void* buffer, size_t size) override;
-  bool ReadNextBlock(bool bRestart) override;
-  const uint8_t* GetBlockBuffer() override;
-  size_t GetBlockSize() override;
-  FX_FILESIZE GetBlockOffset() override;
-
- private:
-  CXML_DataBufAcc(const uint8_t* pBuffer, size_t size);
-  ~CXML_DataBufAcc() override;
-
-  const uint8_t* m_pBuffer;
-  size_t m_dwSize;
-  size_t m_dwCurPos;
-};
-
-CXML_DataBufAcc::CXML_DataBufAcc(const uint8_t* pBuffer, size_t size)
-    : m_pBuffer(pBuffer), m_dwSize(size), m_dwCurPos(0) {}
-
-CXML_DataBufAcc::~CXML_DataBufAcc() {}
-
-bool CXML_DataBufAcc::IsEOF() {
-  return m_dwCurPos >= m_dwSize;
-}
-
-FX_FILESIZE CXML_DataBufAcc::GetPosition() {
-  return static_cast<FX_FILESIZE>(m_dwCurPos);
-}
-
-size_t CXML_DataBufAcc::ReadBlock(void* buffer, size_t size) {
-  return 0;
-}
-
-bool CXML_DataBufAcc::ReadNextBlock(bool bRestart) {
-  if (bRestart)
-    m_dwCurPos = 0;
-
-  if (m_dwCurPos < m_dwSize) {
-    m_dwCurPos = m_dwSize;
-    return true;
-  }
-  return false;
-}
-
-const uint8_t* CXML_DataBufAcc::GetBlockBuffer() {
-  return m_pBuffer;
-}
-
-size_t CXML_DataBufAcc::GetBlockSize() {
-  return m_dwSize;
-}
-
-FX_FILESIZE CXML_DataBufAcc::GetBlockOffset() {
-  return 0;
-}
-
-class CXML_DataStmAcc : public IFX_BufferedReadStream {
- public:
-  template <typename T, typename... Args>
-  friend CFX_RetainPtr<T> pdfium::MakeRetain(Args&&... args);
-
-  // IFX_BufferedReadStream
-  bool IsEOF() override;
-  FX_FILESIZE GetPosition() override;
-  size_t ReadBlock(void* buffer, size_t size) override;
-  bool ReadNextBlock(bool bRestart) override;
-  const uint8_t* GetBlockBuffer() override;
-  size_t GetBlockSize() override;
-  FX_FILESIZE GetBlockOffset() override;
-
- private:
-  explicit CXML_DataStmAcc(
-      const CFX_RetainPtr<IFX_SeekableReadStream>& pFileRead);
-  ~CXML_DataStmAcc() override;
-
-  CFX_RetainPtr<IFX_SeekableReadStream> m_pFileRead;
-  uint8_t* m_pBuffer;
-  FX_FILESIZE m_nStart;
-  size_t m_dwSize;
-};
-
-CXML_DataStmAcc::CXML_DataStmAcc(
-    const CFX_RetainPtr<IFX_SeekableReadStream>& pFileRead)
-    : m_pFileRead(pFileRead), m_pBuffer(nullptr), m_nStart(0), m_dwSize(0) {
-  ASSERT(m_pFileRead);
-}
-
-CXML_DataStmAcc::~CXML_DataStmAcc() {
-  FX_Free(m_pBuffer);
-}
-
-bool CXML_DataStmAcc::IsEOF() {
-  return m_nStart + static_cast<FX_FILESIZE>(m_dwSize) >=
-         m_pFileRead->GetSize();
-}
-
-FX_FILESIZE CXML_DataStmAcc::GetPosition() {
-  return m_nStart + static_cast<FX_FILESIZE>(m_dwSize);
-}
-
-size_t CXML_DataStmAcc::ReadBlock(void* buffer, size_t size) {
-  return 0;
-}
-
-bool CXML_DataStmAcc::ReadNextBlock(bool bRestart) {
-  if (bRestart)
-    m_nStart = 0;
-
-  FX_FILESIZE nLength = m_pFileRead->GetSize();
-  m_nStart += static_cast<FX_FILESIZE>(m_dwSize);
-  if (m_nStart >= nLength)
-    return false;
-
-  static const FX_FILESIZE FX_XMLDATASTREAM_BufferSize = 32 * 1024;
-  m_dwSize = static_cast<size_t>(
-      std::min(FX_XMLDATASTREAM_BufferSize, nLength - m_nStart));
-  if (!m_pBuffer)
-    m_pBuffer = FX_Alloc(uint8_t, m_dwSize);
-
-  return m_pFileRead->ReadBlock(m_pBuffer, m_nStart, m_dwSize);
-}
-
-const uint8_t* CXML_DataStmAcc::GetBlockBuffer() {
-  return (const uint8_t*)m_pBuffer;
-}
-
-size_t CXML_DataStmAcc::GetBlockSize() {
-  return m_dwSize;
-}
-
-FX_FILESIZE CXML_DataStmAcc::GetBlockOffset() {
-  return m_nStart;
-}
-
-}  // namespace
-
-CXML_Parser::CXML_Parser()
-    : m_nOffset(0),
-      m_pBuffer(nullptr),
-      m_dwBufferSize(0),
-      m_nBufferOffset(0),
-      m_dwIndex(0) {}
-
-CXML_Parser::~CXML_Parser() {}
-
-bool CXML_Parser::Init(const uint8_t* pBuffer, size_t size) {
-  m_pDataAcc = pdfium::MakeRetain<CXML_DataBufAcc>(pBuffer, size);
-  m_nOffset = 0;
-  return ReadNextBlock();
-}
-
-bool CXML_Parser::ReadNextBlock() {
-  if (!m_pDataAcc->ReadNextBlock())
-    return false;
-
-  m_pBuffer = m_pDataAcc->GetBlockBuffer();
-  m_dwBufferSize = m_pDataAcc->GetBlockSize();
-  m_nBufferOffset = m_pDataAcc->GetBlockOffset();
-  m_dwIndex = 0;
-  return m_dwBufferSize > 0;
-}
-
-bool CXML_Parser::IsEOF() {
-  return m_pDataAcc->IsEOF() && m_dwIndex >= m_dwBufferSize;
-}
-
-void CXML_Parser::SkipWhiteSpaces() {
-  m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-  if (IsEOF())
-    return;
-
-  do {
-    while (m_dwIndex < m_dwBufferSize &&
-           g_FXCRT_XML_IsWhiteSpace(m_pBuffer[m_dwIndex])) {
-      m_dwIndex++;
-    }
-    m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-    if (m_dwIndex < m_dwBufferSize || IsEOF())
-      break;
-  } while (ReadNextBlock());
-}
-
-void CXML_Parser::GetName(CFX_ByteString* space, CFX_ByteString* name) {
-  m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-  if (IsEOF())
-    return;
-
-  CFX_ByteTextBuf buf;
-  uint8_t ch;
-  do {
-    while (m_dwIndex < m_dwBufferSize) {
-      ch = m_pBuffer[m_dwIndex];
-      if (ch == ':') {
-        *space = buf.AsStringC();
-        buf.Clear();
-      } else if (g_FXCRT_XML_IsNameChar(ch)) {
-        buf.AppendChar(ch);
-      } else {
-        break;
-      }
-      m_dwIndex++;
-    }
-    m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-    if (m_dwIndex < m_dwBufferSize || IsEOF())
-      break;
-  } while (ReadNextBlock());
-  *name = buf.AsStringC();
-}
-
-void CXML_Parser::SkipLiterals(const CFX_ByteStringC& str) {
-  m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-  if (IsEOF()) {
-    return;
-  }
-  int32_t i = 0, iLen = str.GetLength();
-  do {
-    while (m_dwIndex < m_dwBufferSize) {
-      if (str.GetAt(i) != m_pBuffer[m_dwIndex++]) {
-        i = 0;
-        continue;
-      }
-      i++;
-      if (i == iLen)
-        break;
-    }
-    m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-    if (i == iLen)
-      return;
-
-    if (m_dwIndex < m_dwBufferSize || IsEOF())
-      break;
-  } while (ReadNextBlock());
-  while (!m_pDataAcc->IsEOF()) {
-    ReadNextBlock();
-    m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwBufferSize);
-  }
-  m_dwIndex = m_dwBufferSize;
-}
-
-uint32_t CXML_Parser::GetCharRef() {
-  m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-  if (IsEOF())
-    return 0;
-
-  uint8_t ch;
-  int32_t iState = 0;
-  CFX_ByteTextBuf buf;
-  uint32_t code = 0;
-  do {
-    while (m_dwIndex < m_dwBufferSize) {
-      ch = m_pBuffer[m_dwIndex];
-      switch (iState) {
-        case 0:
-          if (ch == '#') {
-            m_dwIndex++;
-            iState = 2;
-            break;
-          }
-          iState = 1;
-        case 1:
-          m_dwIndex++;
-          if (ch == ';') {
-            CFX_ByteStringC ref = buf.AsStringC();
-            if (ref == "gt")
-              code = '>';
-            else if (ref == "lt")
-              code = '<';
-            else if (ref == "amp")
-              code = '&';
-            else if (ref == "apos")
-              code = '\'';
-            else if (ref == "quot")
-              code = '"';
-            iState = 10;
-            break;
-          }
-          buf.AppendByte(ch);
-          break;
-        case 2:
-          if (ch == 'x') {
-            m_dwIndex++;
-            iState = 4;
-            break;
-          }
-          iState = 3;
-        case 3:
-          m_dwIndex++;
-          if (ch == ';') {
-            iState = 10;
-            break;
-          }
-          if (g_FXCRT_XML_IsDigital(ch))
-            code = code * 10 + FXSYS_toDecimalDigit(static_cast<wchar_t>(ch));
-          break;
-        case 4:
-          m_dwIndex++;
-          if (ch == ';') {
-            iState = 10;
-            break;
-          }
-          uint8_t nHex =
-              g_FXCRT_XML_ByteTypes[ch] & FXCRTM_XML_CHARTYPE_HexChar;
-          if (nHex) {
-            if (nHex == FXCRTM_XML_CHARTYPE_HexDigital) {
-              code =
-                  (code << 4) + FXSYS_toDecimalDigit(static_cast<wchar_t>(ch));
-            } else if (nHex == FXCRTM_XML_CHARTYPE_HexLowerLetter) {
-              code = (code << 4) + ch - 87;
-            } else {
-              code = (code << 4) + ch - 55;
-            }
-          }
-          break;
-      }
-      if (iState == 10)
-        break;
-    }
-    m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-    if (iState == 10 || m_dwIndex < m_dwBufferSize || IsEOF()) {
-      break;
-    }
-  } while (ReadNextBlock());
-  return code;
-}
-
-void CXML_Parser::GetAttrValue(CFX_WideString& value) {
-  m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-  if (IsEOF())
-    return;
-
-  CFX_UTF8Decoder decoder;
-  uint8_t mark = 0, ch = 0;
-  do {
-    while (m_dwIndex < m_dwBufferSize) {
-      ch = m_pBuffer[m_dwIndex];
-      if (mark == 0) {
-        if (ch != '\'' && ch != '"')
-          return;
-
-        mark = ch;
-        m_dwIndex++;
-        ch = 0;
-        continue;
-      }
-      m_dwIndex++;
-      if (ch == mark)
-        break;
-
-      if (ch == '&') {
-        decoder.AppendChar(GetCharRef());
-        if (IsEOF()) {
-          value = decoder.GetResult();
-          return;
-        }
-      } else {
-        decoder.Input(ch);
-      }
-    }
-    m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-    if (ch == mark || m_dwIndex < m_dwBufferSize || IsEOF())
-      break;
-  } while (ReadNextBlock());
-  value = decoder.GetResult();
-}
-
-void CXML_Parser::GetTagName(bool bStartTag,
-                             bool* bEndTag,
-                             CFX_ByteString* space,
-                             CFX_ByteString* name) {
-  m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-  if (IsEOF())
-    return;
-
-  *bEndTag = false;
-  uint8_t ch;
-  int32_t iState = bStartTag ? 1 : 0;
-  do {
-    while (m_dwIndex < m_dwBufferSize) {
-      ch = m_pBuffer[m_dwIndex];
-      switch (iState) {
-        case 0:
-          m_dwIndex++;
-          if (ch != '<')
-            break;
-
-          iState = 1;
-          break;
-        case 1:
-          if (ch == '?') {
-            m_dwIndex++;
-            SkipLiterals("?>");
-            iState = 0;
-            break;
-          }
-          if (ch == '!') {
-            m_dwIndex++;
-            SkipLiterals("-->");
-            iState = 0;
-            break;
-          }
-          if (ch == '/') {
-            m_dwIndex++;
-            GetName(space, name);
-            *bEndTag = true;
-          } else {
-            GetName(space, name);
-            *bEndTag = false;
-          }
-          return;
-      }
-    }
-    m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-    if (m_dwIndex < m_dwBufferSize || IsEOF())
-      break;
-  } while (ReadNextBlock());
-}
-
-std::unique_ptr<CXML_Element> CXML_Parser::ParseElement(CXML_Element* pParent,
-                                                        bool bStartTag) {
-  m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-  if (IsEOF())
-    return nullptr;
-
-  CFX_ByteString tag_name;
-  CFX_ByteString tag_space;
-  bool bEndTag;
-  GetTagName(bStartTag, &bEndTag, &tag_space, &tag_name);
-  if (tag_name.IsEmpty() || bEndTag)
-    return nullptr;
-
-  auto pElement = pdfium::MakeUnique<CXML_Element>(
-      pParent, tag_space.AsStringC(), tag_name.AsStringC());
-  do {
-    CFX_ByteString attr_space;
-    CFX_ByteString attr_name;
-    while (m_dwIndex < m_dwBufferSize) {
-      SkipWhiteSpaces();
-      if (IsEOF())
-        break;
-
-      if (!g_FXCRT_XML_IsNameIntro(m_pBuffer[m_dwIndex]))
-        break;
-
-      GetName(&attr_space, &attr_name);
-      SkipWhiteSpaces();
-      if (IsEOF())
-        break;
-
-      if (m_pBuffer[m_dwIndex] != '=')
-        break;
-
-      m_dwIndex++;
-      SkipWhiteSpaces();
-      if (IsEOF())
-        break;
-
-      CFX_WideString attr_value;
-      GetAttrValue(attr_value);
-      pElement->m_AttrMap.SetAt(attr_space, attr_name, attr_value);
-    }
-    m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-    if (m_dwIndex < m_dwBufferSize || IsEOF())
-      break;
-  } while (ReadNextBlock());
-  SkipWhiteSpaces();
-  if (IsEOF())
-    return pElement;
-
-  uint8_t ch = m_pBuffer[m_dwIndex++];
-  if (ch == '/') {
-    m_dwIndex++;
-    m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-    return pElement;
-  }
-  if (ch != '>') {
-    m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-    return nullptr;
-  }
-  SkipWhiteSpaces();
-  if (IsEOF())
-    return pElement;
-
-  CFX_UTF8Decoder decoder;
-  CFX_WideTextBuf content;
-  bool bCDATA = false;
-  int32_t iState = 0;
-  do {
-    while (m_dwIndex < m_dwBufferSize) {
-      ch = m_pBuffer[m_dwIndex++];
-      switch (iState) {
-        case 0:
-          if (ch == '<') {
-            iState = 1;
-          } else if (ch == '&') {
-            decoder.ClearStatus();
-            decoder.AppendChar(GetCharRef());
-          } else {
-            decoder.Input(ch);
-          }
-          break;
-        case 1:
-          if (ch == '!') {
-            iState = 2;
-          } else if (ch == '?') {
-            SkipLiterals("?>");
-            SkipWhiteSpaces();
-            iState = 0;
-          } else if (ch == '/') {
-            CFX_ByteString space;
-            CFX_ByteString name;
-            GetName(&space, &name);
-            SkipWhiteSpaces();
-            m_dwIndex++;
-            iState = 10;
-          } else {
-            content << decoder.GetResult();
-            CFX_WideString dataStr = content.MakeString();
-            if (!bCDATA)
-              dataStr.TrimRight(L" \t\r\n");
-
-            InsertContentSegment(bCDATA, dataStr.AsStringC(), pElement.get());
-            content.Clear();
-            decoder.Clear();
-            bCDATA = false;
-            iState = 0;
-            m_dwIndex--;
-            std::unique_ptr<CXML_Element> pSubElement(
-                ParseElement(pElement.get(), true));
-            if (!pSubElement)
-              break;
-
-            pElement->m_Children.push_back(
-                {CXML_Element::Element, pSubElement.release()});
-            SkipWhiteSpaces();
-          }
-          break;
-        case 2:
-          if (ch == '[') {
-            SkipLiterals("]]>");
-          } else if (ch == '-') {
-            m_dwIndex++;
-            SkipLiterals("-->");
-          } else {
-            SkipLiterals(">");
-          }
-          decoder.Clear();
-          SkipWhiteSpaces();
-          iState = 0;
-          break;
-      }
-      if (iState == 10) {
-        break;
-      }
-    }
-    m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
-    if (iState == 10 || m_dwIndex < m_dwBufferSize || IsEOF())
-      break;
-  } while (ReadNextBlock());
-  content << decoder.GetResult();
-  CFX_WideString dataStr = content.MakeString();
-  dataStr.TrimRight(L" \t\r\n");
-
-  InsertContentSegment(bCDATA, dataStr.AsStringC(), pElement.get());
-  content.Clear();
-  decoder.Clear();
-  bCDATA = false;
-  return pElement;
-}
-
-void CXML_Parser::InsertContentSegment(bool bCDATA,
-                                       const CFX_WideStringC& content,
-                                       CXML_Element* pElement) {
-  if (content.IsEmpty())
-    return;
-
-  CXML_Content* pContent = new CXML_Content;
-  pContent->Set(bCDATA, content);
-  pElement->m_Children.push_back({CXML_Element::Content, pContent});
-}
-
-std::unique_ptr<CXML_Element> CXML_Element::Parse(const void* pBuffer,
-                                                  size_t size) {
-  CXML_Parser parser;
-  if (!parser.Init(static_cast<const uint8_t*>(pBuffer), size))
-    return nullptr;
-  return parser.ParseElement(nullptr, false);
-}
-
-CXML_Element::CXML_Element(const CXML_Element* pParent,
-                           const CFX_ByteStringC& qSpace,
-                           const CFX_ByteStringC& tagname)
-    : m_pParent(pParent), m_QSpaceName(qSpace), m_TagName(tagname) {}
-
-CXML_Element::~CXML_Element() {
-  Empty();
-}
-
-void CXML_Element::Empty() {
-  RemoveChildren();
-}
-void CXML_Element::RemoveChildren() {
-  for (const ChildRecord& record : m_Children) {
-    if (record.type == Content) {
-      delete static_cast<CXML_Content*>(record.child);
-    } else if (record.type == Element) {
-      CXML_Element* child = static_cast<CXML_Element*>(record.child);
-      child->RemoveChildren();
-      delete child;
-    }
-  }
-  m_Children.clear();
-}
-CFX_ByteString CXML_Element::GetTagName(bool bQualified) const {
-  if (!bQualified || m_QSpaceName.IsEmpty()) {
-    return m_TagName;
-  }
-  CFX_ByteString bsTag = m_QSpaceName;
-  bsTag += ":";
-  bsTag += m_TagName;
-  return bsTag;
-}
-
-CFX_ByteString CXML_Element::GetNamespace(bool bQualified) const {
-  return bQualified ? m_QSpaceName : GetNamespaceURI(m_QSpaceName);
-}
-
-CFX_ByteString CXML_Element::GetNamespaceURI(
-    const CFX_ByteString& qName) const {
-  const CFX_WideString* pwsSpace;
-  const CXML_Element* pElement = this;
-  do {
-    if (qName.IsEmpty())
-      pwsSpace = pElement->m_AttrMap.Lookup("", "xmlns");
-    else
-      pwsSpace = pElement->m_AttrMap.Lookup("xmlns", qName);
-    if (pwsSpace)
-      break;
-
-    pElement = pElement->GetParent();
-  } while (pElement);
-  return pwsSpace ? pwsSpace->UTF8Encode() : CFX_ByteString();
-}
-
-void CXML_Element::GetAttrByIndex(int index,
-                                  CFX_ByteString& space,
-                                  CFX_ByteString& name,
-                                  CFX_WideString& value) const {
-  if (index < 0 || index >= m_AttrMap.GetSize())
-    return;
-
-  CXML_AttrItem& item = m_AttrMap.GetAt(index);
-  space = item.m_QSpaceName;
-  name = item.m_AttrName;
-  value = item.m_Value;
-}
-
-bool CXML_Element::HasAttr(const CFX_ByteStringC& name) const {
-  CFX_ByteStringC bsSpace;
-  CFX_ByteStringC bsName;
-  FX_XML_SplitQualifiedName(name, bsSpace, bsName);
-  return !!m_AttrMap.Lookup(CFX_ByteString(bsSpace), CFX_ByteString(bsName));
-}
-
-bool CXML_Element::GetAttrValue(const CFX_ByteStringC& name,
-                                CFX_WideString& attribute) const {
-  CFX_ByteStringC bsSpace;
-  CFX_ByteStringC bsName;
-  FX_XML_SplitQualifiedName(name, bsSpace, bsName);
-  return GetAttrValue(bsSpace, bsName, attribute);
-}
-
-bool CXML_Element::GetAttrValue(const CFX_ByteStringC& space,
-                                const CFX_ByteStringC& name,
-                                CFX_WideString& attribute) const {
-  const CFX_WideString* pValue =
-      m_AttrMap.Lookup(CFX_ByteString(space), CFX_ByteString(name));
-  if (!pValue)
-    return false;
-
-  attribute = *pValue;
-  return true;
-}
-
-bool CXML_Element::GetAttrInteger(const CFX_ByteStringC& name,
-                                  int& attribute) const {
-  CFX_ByteStringC bsSpace;
-  CFX_ByteStringC bsName;
-  FX_XML_SplitQualifiedName(name, bsSpace, bsName);
-  const CFX_WideString* pwsValue =
-      m_AttrMap.Lookup(CFX_ByteString(bsSpace), CFX_ByteString(bsName));
-  if (!pwsValue)
-    return false;
-
-  attribute = pwsValue->GetInteger();
-  return true;
-}
-
-bool CXML_Element::GetAttrInteger(const CFX_ByteStringC& space,
-                                  const CFX_ByteStringC& name,
-                                  int& attribute) const {
-  const CFX_WideString* pwsValue =
-      m_AttrMap.Lookup(CFX_ByteString(space), CFX_ByteString(name));
-  if (!pwsValue)
-    return false;
-
-  attribute = pwsValue->GetInteger();
-  return true;
-}
-
-bool CXML_Element::GetAttrFloat(const CFX_ByteStringC& name,
-                                float& attribute) const {
-  CFX_ByteStringC bsSpace;
-  CFX_ByteStringC bsName;
-  FX_XML_SplitQualifiedName(name, bsSpace, bsName);
-  return GetAttrFloat(bsSpace, bsName, attribute);
-}
-
-bool CXML_Element::GetAttrFloat(const CFX_ByteStringC& space,
-                                const CFX_ByteStringC& name,
-                                float& attribute) const {
-  const CFX_WideString* pValue =
-      m_AttrMap.Lookup(CFX_ByteString(space), CFX_ByteString(name));
-  if (!pValue)
-    return false;
-
-  attribute = pValue->GetFloat();
-  return true;
-}
-
-CXML_Element::ChildType CXML_Element::GetChildType(uint32_t index) const {
-  return index < m_Children.size() ? m_Children[index].type : Invalid;
-}
-
-CFX_WideString CXML_Element::GetContent(uint32_t index) const {
-  if (index < m_Children.size() && m_Children[index].type == Content) {
-    CXML_Content* pContent =
-        static_cast<CXML_Content*>(m_Children[index].child);
-    if (pContent)
-      return pContent->m_Content;
-  }
-  return CFX_WideString();
-}
-
-CXML_Element* CXML_Element::GetElement(uint32_t index) const {
-  if (index < m_Children.size() && m_Children[index].type == Element)
-    return static_cast<CXML_Element*>(m_Children[index].child);
-  return nullptr;
-}
-
-uint32_t CXML_Element::CountElements(const CFX_ByteStringC& space,
-                                     const CFX_ByteStringC& tag) const {
-  int count = 0;
-  for (const ChildRecord& record : m_Children) {
-    if (record.type != Element)
-      continue;
-
-    CXML_Element* pKid = static_cast<CXML_Element*>(record.child);
-    if ((space.IsEmpty() || pKid->m_QSpaceName == space) &&
-        pKid->m_TagName == tag) {
-      count++;
-    }
-  }
-  return count;
-}
-
-CXML_Element* CXML_Element::GetElement(const CFX_ByteStringC& space,
-                                       const CFX_ByteStringC& tag,
-                                       int index) const {
-  if (index < 0)
-    return nullptr;
-
-  for (const ChildRecord& record : m_Children) {
-    if (record.type != Element)
-      continue;
-
-    CXML_Element* pKid = static_cast<CXML_Element*>(record.child);
-    if ((space.IsEmpty() || pKid->m_QSpaceName == space) &&
-        pKid->m_TagName == tag) {
-      if (index-- == 0)
-        return pKid;
-    }
-  }
-  return nullptr;
-}
-
-uint32_t CXML_Element::FindElement(CXML_Element* pChild) const {
-  int index = 0;
-  for (const ChildRecord& record : m_Children) {
-    if (record.type == Element &&
-        static_cast<CXML_Element*>(record.child) == pChild) {
-      return index;
-    }
-    ++index;
-  }
-  return 0xFFFFFFFF;
-}
-
-bool CXML_AttrItem::Matches(const CFX_ByteString& space,
-                            const CFX_ByteString& name) const {
-  return (space.IsEmpty() || m_QSpaceName == space) && m_AttrName == name;
-}
-
-CXML_AttrMap::CXML_AttrMap() {}
-
-CXML_AttrMap::~CXML_AttrMap() {}
-
-const CFX_WideString* CXML_AttrMap::Lookup(const CFX_ByteString& space,
-                                           const CFX_ByteString& name) const {
-  if (!m_pMap)
-    return nullptr;
-
-  for (const auto& item : *m_pMap) {
-    if (item.Matches(space, name))
-      return &item.m_Value;
-  }
-  return nullptr;
-}
-
-void CXML_AttrMap::SetAt(const CFX_ByteString& space,
-                         const CFX_ByteString& name,
-                         const CFX_WideString& value) {
-  if (!m_pMap)
-    m_pMap = pdfium::MakeUnique<std::vector<CXML_AttrItem>>();
-
-  for (CXML_AttrItem& item : *m_pMap) {
-    if (item.Matches(space, name)) {
-      item.m_Value = value;
-      return;
-    }
-  }
-
-  m_pMap->push_back({space, name, CFX_WideString(value)});
-}
-
-int CXML_AttrMap::GetSize() const {
-  return m_pMap ? pdfium::CollectionSize<int>(*m_pMap) : 0;
-}
-
-CXML_AttrItem& CXML_AttrMap::GetAt(int index) const {
-  return (*m_pMap)[index];
-}