diff options
Diffstat (limited to 'xfa/src/fgas/src/xml')
| -rw-r--r-- | xfa/src/fgas/src/xml/fx_sax_imp.cpp | 720 | ||||
| -rw-r--r-- | xfa/src/fgas/src/xml/fx_sax_imp.h | 140 |
2 files changed, 860 insertions, 0 deletions
diff --git a/xfa/src/fgas/src/xml/fx_sax_imp.cpp b/xfa/src/fgas/src/xml/fx_sax_imp.cpp new file mode 100644 index 0000000000..b41ee3fef4 --- /dev/null +++ b/xfa/src/fgas/src/xml/fx_sax_imp.cpp @@ -0,0 +1,720 @@ +// 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 "../fgas_base.h"
+#include "fx_sax_imp.h"
+IFX_SAXReader* FX_SAXReader_Create()
+{
+ return FX_NEW CFX_SAXReader;
+}
+CFX_SAXFile::CFX_SAXFile()
+ : m_pFile(NULL)
+ , m_dwStart(0)
+ , m_dwEnd(0)
+ , m_dwCur(0)
+ , m_pBuf(NULL)
+ , m_dwBufSize(0)
+ , m_dwBufIndex(0)
+{
+}
+FX_BOOL CFX_SAXFile::StartFile(IFX_FileRead *pFile, FX_DWORD dwStart, FX_DWORD dwLen)
+{
+ FXSYS_assert(m_pFile == NULL && pFile != NULL);
+ FX_DWORD dwSize = pFile->GetSize();
+ if (dwStart >= dwSize) {
+ return FALSE;
+ }
+ if (dwLen == -1 || dwStart + dwLen > dwSize) {
+ dwLen = dwSize - dwStart;
+ }
+ if (dwLen == 0) {
+ return FALSE;
+ }
+ m_dwBufSize = FX_MIN(dwLen, FX_SAXFILE_BUFSIZE);
+ m_pBuf = FX_Alloc(FX_BYTE, m_dwBufSize);
+ if (!m_pBuf) {
+ return FALSE;
+ }
+ if (!pFile->ReadBlock(m_pBuf, dwStart, m_dwBufSize)) {
+ return FALSE;
+ }
+ m_dwStart = dwStart;
+ m_dwEnd = dwStart + dwLen;
+ m_dwCur = dwStart;
+ m_pFile = pFile;
+ m_dwBufIndex = 0;
+ return TRUE;
+}
+FX_BOOL CFX_SAXFile::ReadNextBlock()
+{
+ FXSYS_assert(m_pFile != NULL);
+ FX_DWORD dwSize = m_dwEnd - m_dwCur;
+ if (dwSize == 0) {
+ return FALSE;
+ }
+ m_dwBufSize = FX_MIN(dwSize, FX_SAXFILE_BUFSIZE);
+ if (!m_pFile->ReadBlock(m_pBuf, m_dwCur, m_dwBufSize)) {
+ return FALSE;
+ }
+ m_dwBufIndex = 0;
+ return TRUE;
+}
+void CFX_SAXFile::Reset()
+{
+ if (m_pBuf) {
+ FX_Free(m_pBuf);
+ m_pBuf = NULL;
+ }
+ m_pFile = NULL;
+}
+#define FX_SAXCHARTYPE_Normal 0
+#define FX_SAXCHARTYPE_Space 1
+static FX_BYTE g_SAX_CharType[256] = {
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+};
+CFX_SAXReader::CFX_SAXReader()
+ : m_File()
+ , m_pHandler(NULL)
+ , m_iState(-1)
+ , m_pRoot(NULL)
+ , m_pCurItem(NULL)
+ , m_dwItemID(0)
+ , m_iDataSize(256)
+ , m_iNameSize(256)
+ , m_pCommentContext(NULL)
+ , m_dwParseMode(0)
+{
+ m_pszData = (FX_LPBYTE)FX_Alloc(FX_BYTE, m_iDataSize);
+ m_pszName = (FX_LPBYTE)FX_Alloc(FX_BYTE, m_iNameSize);
+}
+CFX_SAXReader::~CFX_SAXReader()
+{
+ Reset();
+ if (m_pszData) {
+ FX_Free(m_pszData);
+ m_pszData = NULL;
+ }
+ if (m_pszName) {
+ FX_Free(m_pszName);
+ m_pszName = NULL;
+ }
+}
+void CFX_SAXReader::Reset()
+{
+ m_File.Reset();
+ CFX_SAXItem *pItem = m_pRoot;
+ while (pItem) {
+ CFX_SAXItem *pNext = pItem->m_pNext;
+ delete pItem;
+ pItem = pNext;
+ }
+ m_pRoot = NULL;
+ m_pCurItem = NULL;
+ m_dwItemID = 0;
+ m_SkipStack.RemoveAll();
+ m_SkipChar = 0;
+ m_iDataLength = 0;
+ m_iEntityStart = -1;
+ m_iNameLength = 0;
+ m_iDataPos = 0;
+ if (m_pCommentContext) {
+ delete m_pCommentContext;
+ m_pCommentContext = NULL;
+ }
+}
+inline void CFX_SAXReader::Push()
+{
+ CFX_SAXItem *pNew = FX_NEW CFX_SAXItem;
+ pNew->m_dwID = ++m_dwItemID;
+ pNew->m_bSkip = m_pCurItem->m_bSkip;
+ pNew->m_pPrev = m_pCurItem;
+ m_pCurItem->m_pNext = pNew;
+ m_pCurItem = pNew;
+}
+inline void CFX_SAXReader::Pop()
+{
+ if (!m_pCurItem) {
+ return;
+ }
+ CFX_SAXItem *pPrev = m_pCurItem->m_pPrev;
+ pPrev->m_pNext = NULL;
+ delete m_pCurItem;
+ m_pCurItem = pPrev;
+}
+inline void CFX_SAXReader::AppendData(FX_BYTE ch)
+{
+ ReallocDataBuffer();
+ m_pszData[m_iDataPos++] = ch;
+}
+inline void CFX_SAXReader::AppendName(FX_BYTE ch)
+{
+ ReallocNameBuffer();
+ m_pszName[m_iDataPos++] = ch;
+}
+void CFX_SAXReader::ReallocDataBuffer()
+{
+ if (m_iDataPos < m_iDataSize) {
+ return;
+ }
+ if (m_iDataSize <= 1024 * 1024) {
+ m_iDataSize *= 2;
+ } else {
+ m_iDataSize += 1024 * 1024;
+ }
+ m_pszData = (FX_LPBYTE)FX_Realloc(FX_BYTE, m_pszData, m_iDataSize);
+}
+void CFX_SAXReader::ReallocNameBuffer()
+{
+ if (m_iDataPos < m_iNameSize) {
+ return;
+ }
+ if (m_iNameSize <= 1024 * 1024) {
+ m_iNameSize *= 2;
+ } else {
+ m_iNameSize += 1024 * 1024;
+ }
+ m_pszName = (FX_LPBYTE)FX_Realloc(FX_BYTE, m_pszName, m_iNameSize);
+}
+inline FX_BOOL CFX_SAXReader::SkipSpace(FX_BYTE ch)
+{
+ return (m_dwParseMode & FX_SAXPARSEMODE_NotSkipSpace) == 0 && ch < 0x21;
+}
+FX_INT32 CFX_SAXReader::StartParse(IFX_FileRead *pFile, FX_DWORD dwStart , FX_DWORD dwLen , FX_DWORD dwParseMode )
+{
+ m_iState = -1;
+ Reset();
+ if (!m_File.StartFile(pFile, dwStart, dwLen)) {
+ return -1;
+ }
+ m_iState = 0;
+ m_eMode = FX_SAXMODE_Text;
+ m_ePrevMode = FX_SAXMODE_Text;
+ m_bCharData = FALSE;
+ m_dwDataOffset = 0;
+ m_pRoot = m_pCurItem = FX_NEW CFX_SAXItem;
+ m_pCurItem->m_dwID = ++m_dwItemID;
+ m_dwParseMode = dwParseMode;
+ return 0;
+}
+typedef void (CFX_SAXReader::*FX_SAXReader_LPFParse)();
+static const FX_SAXReader_LPFParse g_FX_SAXReader_LPFParse[FX_SAXMODE_MAX] = {
+ &CFX_SAXReader::ParseText,
+ &CFX_SAXReader::ParseNodeStart,
+ &CFX_SAXReader::ParseDeclOrComment,
+ &CFX_SAXReader::ParseDeclNode,
+ &CFX_SAXReader::ParseComment,
+ &CFX_SAXReader::ParseCommentContent,
+ &CFX_SAXReader::ParseTagName,
+ &CFX_SAXReader::ParseTagAttributeName,
+ &CFX_SAXReader::ParseTagAttributeEqual,
+ &CFX_SAXReader::ParseTagAttributeValue,
+ &CFX_SAXReader::ParseMaybeClose,
+ &CFX_SAXReader::ParseTagClose,
+ &CFX_SAXReader::ParseTagEnd,
+ &CFX_SAXReader::ParseTargetData,
+};
+FX_INT32 CFX_SAXReader::ContinueParse(IFX_Pause *pPause )
+{
+ if (m_iState < 0 || m_iState > 99) {
+ return m_iState;
+ }
+ while(m_File.m_dwCur < m_File.m_dwEnd) {
+ FX_DWORD &index = m_File.m_dwBufIndex;
+ FX_DWORD size = m_File.m_dwBufSize;
+ FX_LPCBYTE pBuf = m_File.m_pBuf;
+ while (index < size) {
+ m_CurByte = pBuf[index];
+ (this->*g_FX_SAXReader_LPFParse[m_eMode])();
+ index ++;
+ }
+ m_File.m_dwCur += index;
+ m_iState = (m_File.m_dwCur - m_File.m_dwStart) * 100 / (m_File.m_dwEnd - m_File.m_dwStart);
+ if (m_File.m_dwCur >= m_File.m_dwEnd) {
+ break;
+ }
+ if (!m_File.ReadNextBlock()) {
+ m_iState = -2;
+ break;
+ }
+ m_dwDataOffset = 0;
+ if (pPause && pPause->NeedToPauseNow()) {
+ break;
+ }
+ }
+ return m_iState;
+}
+void CFX_SAXReader::ParseChar(FX_BYTE ch)
+{
+ ReallocDataBuffer();
+ m_pszData[m_iDataPos] = ch;
+ if (m_iEntityStart > -1 && ch == ';') {
+ FX_INT32 iSaveEntityStart = m_iEntityStart;
+ CFX_ByteString csEntity(m_pszData + m_iEntityStart + 1, m_iDataPos - m_iEntityStart - 1);
+ FX_INT32 iLen = csEntity.GetLength();
+ if (iLen > 0) {
+ if (csEntity[0] == '#') {
+ if ((m_dwParseMode & FX_SAXPARSEMODE_NotConvert_sharp) == 0) {
+ ch = 0;
+ FX_BYTE w;
+ if (iLen > 1 && csEntity[1] == 'x') {
+ for (FX_INT32 i = 2; i < iLen; i ++) {
+ w = csEntity[i];
+ if (w >= '0' && w <= '9') {
+ ch = (ch << 4) + w - '0';
+ } else if (w >= 'A' && w <= 'F') {
+ ch = (ch << 4) + w - 55;
+ } else if (w >= 'a' && w <= 'f') {
+ ch = (ch << 4) + w - 87;
+ } else {
+ break;
+ }
+ }
+ } else {
+ for (FX_INT32 i = 1; i < iLen; i ++) {
+ w = csEntity[i];
+ if (w < '0' || w > '9') {
+ break;
+ }
+ ch = ch * 10 + w - '0';
+ }
+ }
+ if (ch != 0) {
+ m_pszData[m_iEntityStart ++] = ch;
+ }
+ }
+ } else {
+ if (csEntity.Compare("amp") == 0) {
+ if ((m_dwParseMode & FX_SAXPARSEMODE_NotConvert_amp) == 0) {
+ m_pszData[m_iEntityStart ++] = '&';
+ }
+ } else if (csEntity.Compare("lt") == 0) {
+ if ((m_dwParseMode & FX_SAXPARSEMODE_NotConvert_lt) == 0) {
+ m_pszData[m_iEntityStart ++] = '<';
+ }
+ } else if (csEntity.Compare("gt") == 0) {
+ if ((m_dwParseMode & FX_SAXPARSEMODE_NotConvert_gt) == 0) {
+ m_pszData[m_iEntityStart ++] = '>';
+ }
+ } else if (csEntity.Compare("apos") == 0) {
+ if ((m_dwParseMode & FX_SAXPARSEMODE_NotConvert_apos) == 0) {
+ m_pszData[m_iEntityStart ++] = '\'';
+ }
+ } else if (csEntity.Compare("quot") == 0) {
+ if ((m_dwParseMode & FX_SAXPARSEMODE_NotConvert_quot) == 0) {
+ m_pszData[m_iEntityStart ++] = '\"';
+ }
+ }
+ }
+ }
+ if (iSaveEntityStart != m_iEntityStart) {
+ m_iDataPos = m_iEntityStart;
+ m_iEntityStart = -1;
+ } else {
+ m_iDataPos ++;
+ m_iEntityStart = -1;
+ }
+ } else {
+ if (m_iEntityStart < 0 && ch == '&') {
+ m_iEntityStart = m_iDataPos;
+ }
+ m_iDataPos ++;
+ }
+}
+void CFX_SAXReader::ParseText()
+{
+ if (m_CurByte == '<') {
+ if (m_iDataPos > 0) {
+ m_iDataLength = m_iDataPos;
+ m_iDataPos = 0;
+ if (m_pHandler) {
+ NotifyData();
+ }
+ }
+ Push();
+ m_dwNodePos = m_File.m_dwCur + m_File.m_dwBufIndex;
+ m_eMode = FX_SAXMODE_NodeStart;
+ return;
+ }
+ if (m_iDataPos < 1 && SkipSpace(m_CurByte)) {
+ return;
+ }
+ ParseChar(m_CurByte);
+}
+void CFX_SAXReader::ParseNodeStart()
+{
+ if (m_CurByte == '?') {
+ m_pCurItem->m_eNode = FX_SAXNODE_Instruction;
+ m_eMode = FX_SAXMODE_TagName;
+ return;
+ }
+ if (m_CurByte == '!') {
+ m_eMode = FX_SAXMODE_DeclOrComment;
+ return;
+ }
+ if (m_CurByte == '/') {
+ m_eMode = FX_SAXMODE_TagEnd;
+ return;
+ }
+ if (m_CurByte == '>') {
+ Pop();
+ m_eMode = FX_SAXMODE_Text;
+ return;
+ }
+ if (m_CurByte > 0x20) {
+ m_dwDataOffset = m_File.m_dwBufIndex;
+ m_pCurItem->m_eNode = FX_SAXNODE_Tag;
+ m_eMode = FX_SAXMODE_TagName;
+ AppendData(m_CurByte);
+ }
+}
+void CFX_SAXReader::ParseDeclOrComment()
+{
+ if (m_CurByte == '-') {
+ m_eMode = FX_SAXMODE_Comment;
+ m_pCurItem->m_eNode = FX_SAXNODE_Comment;
+ if (m_pCommentContext == NULL) {
+ m_pCommentContext = FX_NEW CFX_SAXCommentContext;
+ }
+ m_pCommentContext->m_iHeaderCount = 1;
+ m_pCommentContext->m_iTailCount = 0;
+ } else {
+ m_eMode = FX_SAXMODE_DeclNode;
+ m_dwDataOffset = m_File.m_dwBufIndex;
+ m_SkipChar = '>';
+ m_SkipStack.Add('>');
+ SkipNode();
+ }
+}
+void CFX_SAXReader::ParseComment()
+{
+ m_pCommentContext->m_iHeaderCount = 2;
+ m_dwNodePos = m_File.m_dwCur + m_File.m_dwBufIndex;
+ m_eMode = FX_SAXMODE_CommentContent;
+}
+void CFX_SAXReader::ParseCommentContent()
+{
+ if (m_CurByte == '-') {
+ m_pCommentContext->m_iTailCount++;
+ } else if (m_CurByte == '>' && m_pCommentContext->m_iTailCount == 2) {
+ m_iDataLength = m_iDataPos;
+ m_iDataPos = 0;
+ if (m_pHandler) {
+ NotifyTargetData();
+ }
+ Pop();
+ m_eMode = FX_SAXMODE_Text;
+ } else {
+ while (m_pCommentContext->m_iTailCount > 0) {
+ AppendData('-');
+ m_pCommentContext->m_iTailCount--;
+ }
+ AppendData(m_CurByte);
+ }
+}
+void CFX_SAXReader::ParseDeclNode()
+{
+ SkipNode();
+}
+void CFX_SAXReader::ParseTagName()
+{
+ if (m_CurByte < 0x21 || m_CurByte == '/' || m_CurByte == '>' || m_CurByte == '?') {
+ m_iDataLength = m_iDataPos;
+ m_iDataPos = 0;
+ if (m_pHandler) {
+ NotifyEnter();
+ }
+ if (m_CurByte < 0x21) {
+ m_eMode = FX_SAXMODE_TagAttributeName;
+ } else if (m_CurByte == '/' || m_CurByte == '?') {
+ m_ePrevMode = m_eMode;
+ m_eMode = FX_SAXMODE_TagMaybeClose;
+ } else {
+ if (m_pHandler) {
+ NotifyBreak();
+ }
+ m_eMode = FX_SAXMODE_Text;
+ }
+ } else {
+ AppendData(m_CurByte);
+ }
+}
+void CFX_SAXReader::ParseTagAttributeName()
+{
+ if (m_CurByte < 0x21 || m_CurByte == '=') {
+ if (m_iDataPos < 1 && m_CurByte < 0x21) {
+ return;
+ }
+ m_iNameLength = m_iDataPos;
+ m_iDataPos = 0;
+ m_SkipChar = 0;
+ m_eMode = m_CurByte == '=' ? FX_SAXMODE_TagAttributeValue : FX_SAXMODE_TagAttributeEqual;
+ return;
+ }
+ if (m_CurByte == '/' || m_CurByte == '>' || m_CurByte == '?') {
+ if (m_CurByte == '/' || m_CurByte == '?') {
+ m_ePrevMode = m_eMode;
+ m_eMode = FX_SAXMODE_TagMaybeClose;
+ } else {
+ if (m_pHandler) {
+ NotifyBreak();
+ }
+ m_eMode = FX_SAXMODE_Text;
+ }
+ return;
+ }
+ if (m_iDataPos < 1) {
+ m_dwDataOffset = m_File.m_dwBufIndex;
+ }
+ AppendName(m_CurByte);
+}
+void CFX_SAXReader::ParseTagAttributeEqual()
+{
+ if (m_CurByte == '=') {
+ m_SkipChar = 0;
+ m_eMode = FX_SAXMODE_TagAttributeValue;
+ return;
+ } else if (m_pCurItem->m_eNode == FX_SAXNODE_Instruction) {
+ m_iDataPos = m_iNameLength;
+ AppendName(0x20);
+ m_eMode = FX_SAXMODE_TargetData;
+ ParseTargetData();
+ }
+}
+void CFX_SAXReader::ParseTagAttributeValue()
+{
+ if (m_SkipChar) {
+ if (m_SkipChar == m_CurByte) {
+ {
+ m_iDataLength = m_iDataPos;
+ m_iDataPos = 0;
+ if (m_pHandler) {
+ NotifyAttribute();
+ }
+ }
+ m_SkipChar = 0;
+ m_eMode = FX_SAXMODE_TagAttributeName;
+ return;
+ }
+ ParseChar(m_CurByte);
+ return;
+ }
+ if (m_CurByte < 0x21) {
+ return;
+ }
+ if (m_iDataPos < 1) {
+ if (m_CurByte == '\'' || m_CurByte == '\"') {
+ m_SkipChar = m_CurByte;
+ }
+ }
+}
+void CFX_SAXReader::ParseMaybeClose()
+{
+ if (m_CurByte == '>') {
+ if (m_pCurItem->m_eNode == FX_SAXNODE_Instruction) {
+ m_iNameLength = m_iDataPos;
+ m_iDataPos = 0;
+ if (m_pHandler) {
+ NotifyTargetData();
+ }
+ }
+ ParseTagClose();
+ m_eMode = FX_SAXMODE_Text;
+ } else if (m_ePrevMode == FX_SAXMODE_TagName) {
+ AppendData('/');
+ m_eMode = FX_SAXMODE_TagName;
+ m_ePrevMode = FX_SAXMODE_Text;
+ ParseTagName();
+ } else if (m_ePrevMode == FX_SAXMODE_TagAttributeName) {
+ AppendName('/');
+ m_eMode = FX_SAXMODE_TagAttributeName;
+ m_ePrevMode = FX_SAXMODE_Text;
+ ParseTagAttributeName();
+ } else if (m_ePrevMode == FX_SAXMODE_TargetData) {
+ AppendName('?');
+ m_eMode = FX_SAXMODE_TargetData;
+ m_ePrevMode = FX_SAXMODE_Text;
+ ParseTargetData();
+ }
+}
+void CFX_SAXReader::ParseTagClose()
+{
+ m_dwNodePos = m_File.m_dwCur + m_File.m_dwBufIndex;
+ if (m_pHandler) {
+ NotifyClose();
+ }
+ Pop();
+}
+void CFX_SAXReader::ParseTagEnd()
+{
+ if (m_CurByte < 0x21) {
+ return;
+ }
+ if (m_CurByte == '>') {
+ Pop();
+ m_dwNodePos = m_File.m_dwCur + m_File.m_dwBufIndex;
+ m_iDataLength = m_iDataPos;
+ m_iDataPos = 0;
+ if (m_pHandler) {
+ NotifyEnd();
+ }
+ Pop();
+ m_eMode = FX_SAXMODE_Text;
+ } else {
+ ParseChar(m_CurByte);
+ }
+}
+void CFX_SAXReader::ParseTargetData()
+{
+ if (m_CurByte == '?') {
+ m_ePrevMode = m_eMode;
+ m_eMode = FX_SAXMODE_TagMaybeClose;
+ } else {
+ AppendName(m_CurByte);
+ }
+}
+void CFX_SAXReader::SkipNode()
+{
+ FX_INT32 iLen = m_SkipStack.GetSize();
+ if (m_SkipChar == '\'' || m_SkipChar == '\"') {
+ if (m_CurByte != m_SkipChar) {
+ return;
+ }
+ iLen --;
+ FXSYS_assert(iLen > -1);
+ m_SkipStack.RemoveAt(iLen, 1);
+ m_SkipChar = iLen ? m_SkipStack[iLen - 1] : 0;
+ return;
+ }
+ switch (m_CurByte) {
+ case '<':
+ m_SkipChar = '>';
+ m_SkipStack.Add('>');
+ break;
+ case '[':
+ m_SkipChar = ']';
+ m_SkipStack.Add(']');
+ break;
+ case '(':
+ m_SkipChar = ')';
+ m_SkipStack.Add(')');
+ break;
+ case '\'':
+ m_SkipChar = '\'';
+ m_SkipStack.Add('\'');
+ break;
+ case '\"':
+ m_SkipChar = '\"';
+ m_SkipStack.Add('\"');
+ break;
+ default:
+ if (m_CurByte == m_SkipChar) {
+ iLen --;
+ m_SkipStack.RemoveAt(iLen, 1);
+ m_SkipChar = iLen ? m_SkipStack[iLen - 1] : 0;
+ if (iLen == 0 && m_CurByte == '>') {
+ m_iDataLength = m_iDataPos;
+ m_iDataPos = 0;
+ if (m_iDataLength >= 9
+ && FXSYS_memcmp(m_pszData, "[CDATA[", 7 * sizeof(FX_BYTE)) == 0
+ && FXSYS_memcmp(m_pszData + m_iDataLength - 2, "]]", 2 * sizeof(FX_BYTE)) == 0) {
+ Pop();
+ m_iDataLength -= 9;
+ m_dwDataOffset += 7;
+ FXSYS_memmove(m_pszData , m_pszData + 7, m_iDataLength * sizeof(FX_BYTE));
+ m_bCharData = TRUE;
+ if (m_pHandler) {
+ NotifyData();
+ }
+ m_bCharData = FALSE;
+ } else {
+ Pop();
+ }
+ m_eMode = FX_SAXMODE_Text;
+ }
+ }
+ break;
+ }
+ if (iLen > 0) {
+ ParseChar(m_CurByte);
+ }
+}
+void CFX_SAXReader::NotifyData()
+{
+ FXSYS_assert(m_pHandler != NULL);
+ if (m_pCurItem->m_eNode == FX_SAXNODE_Tag)
+ m_pHandler->OnTagData(m_pCurItem->m_pNode, m_bCharData ? FX_SAXNODE_CharData : FX_SAXNODE_Text,
+ CFX_ByteStringC(m_pszData, m_iDataLength), m_File.m_dwCur + m_dwDataOffset);
+}
+void CFX_SAXReader::NotifyEnter()
+{
+ FXSYS_assert(m_pHandler != NULL);
+ if (m_pCurItem->m_eNode == FX_SAXNODE_Tag || m_pCurItem->m_eNode == FX_SAXNODE_Instruction) {
+ m_pCurItem->m_pNode = m_pHandler->OnTagEnter(CFX_ByteStringC(m_pszData, m_iDataLength), m_pCurItem->m_eNode, m_dwNodePos);
+ }
+}
+void CFX_SAXReader::NotifyAttribute()
+{
+ FXSYS_assert(m_pHandler != NULL);
+ if (m_pCurItem->m_eNode == FX_SAXNODE_Tag || m_pCurItem->m_eNode == FX_SAXNODE_Instruction) {
+ m_pHandler->OnTagAttribute(m_pCurItem->m_pNode, CFX_ByteStringC(m_pszName, m_iNameLength), CFX_ByteStringC(m_pszData, m_iDataLength));
+ }
+}
+void CFX_SAXReader::NotifyBreak()
+{
+ FXSYS_assert(m_pHandler != NULL);
+ if (m_pCurItem->m_eNode == FX_SAXNODE_Tag) {
+ m_pHandler->OnTagBreak(m_pCurItem->m_pNode);
+ }
+}
+void CFX_SAXReader::NotifyClose()
+{
+ FXSYS_assert(m_pHandler != NULL);
+ if (m_pCurItem->m_eNode == FX_SAXNODE_Tag || m_pCurItem->m_eNode == FX_SAXNODE_Instruction) {
+ m_pHandler->OnTagClose(m_pCurItem->m_pNode, m_dwNodePos);
+ }
+}
+void CFX_SAXReader::NotifyEnd()
+{
+ FXSYS_assert(m_pHandler != NULL);
+ if (m_pCurItem->m_eNode == FX_SAXNODE_Tag) {
+ m_pHandler->OnTagEnd(m_pCurItem->m_pNode, CFX_ByteStringC(m_pszData, m_iDataLength), m_dwNodePos);
+ }
+}
+void CFX_SAXReader::NotifyTargetData()
+{
+ FXSYS_assert(m_pHandler != NULL);
+ if (m_pCurItem->m_eNode == FX_SAXNODE_Instruction) {
+ m_pHandler->OnTargetData(m_pCurItem->m_pNode, m_pCurItem->m_eNode, CFX_ByteStringC(m_pszName, m_iNameLength), m_dwNodePos);
+ } else if (m_pCurItem->m_eNode == FX_SAXNODE_Comment) {
+ m_pHandler->OnTargetData(m_pCurItem->m_pNode, m_pCurItem->m_eNode, CFX_ByteStringC(m_pszData, m_iDataLength), m_dwNodePos);
+ }
+}
+void CFX_SAXReader::SkipCurrentNode()
+{
+ if (!m_pCurItem) {
+ return;
+ }
+ m_pCurItem->m_bSkip = TRUE;
+}
+void CFX_SAXReader::SetHandler(IFX_SAXReaderHandler *pHandler)
+{
+ m_pHandler = pHandler;
+}
diff --git a/xfa/src/fgas/src/xml/fx_sax_imp.h b/xfa/src/fgas/src/xml/fx_sax_imp.h new file mode 100644 index 0000000000..f18173183f --- /dev/null +++ b/xfa/src/fgas/src/xml/fx_sax_imp.h @@ -0,0 +1,140 @@ +// 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
+
+#ifndef _FX_SAX_IMP_
+#define _FX_SAX_IMP_
+#define FX_SAXFILE_BUFSIZE 32768
+class CFX_SAXFile : public CFX_Object
+{
+public:
+ CFX_SAXFile();
+ FX_BOOL StartFile(IFX_FileRead *pFile, FX_DWORD dwStart, FX_DWORD dwLen);
+ FX_BOOL ReadNextBlock();
+ void Reset();
+ IFX_FileRead* m_pFile;
+ FX_DWORD m_dwStart;
+ FX_DWORD m_dwEnd;
+ FX_DWORD m_dwCur;
+ FX_LPBYTE m_pBuf;
+ FX_DWORD m_dwBufSize;
+ FX_DWORD m_dwBufIndex;
+};
+enum FX_SAXMODE {
+ FX_SAXMODE_Text = 0,
+ FX_SAXMODE_NodeStart,
+ FX_SAXMODE_DeclOrComment,
+ FX_SAXMODE_DeclNode,
+ FX_SAXMODE_Comment,
+ FX_SAXMODE_CommentContent,
+ FX_SAXMODE_TagName,
+ FX_SAXMODE_TagAttributeName,
+ FX_SAXMODE_TagAttributeEqual,
+ FX_SAXMODE_TagAttributeValue,
+ FX_SAXMODE_TagMaybeClose,
+ FX_SAXMODE_TagClose,
+ FX_SAXMODE_TagEnd,
+ FX_SAXMODE_TargetData,
+ FX_SAXMODE_MAX,
+};
+class CFX_SAXItem : public CFX_Object
+{
+public:
+ CFX_SAXItem() : m_pNode(NULL)
+ , m_eNode(FX_SAXNODE_Unknown)
+ , m_dwID(0)
+ , m_bSkip(FALSE)
+ , m_pPrev(NULL)
+ , m_pNext(NULL)
+ {}
+ FX_LPVOID m_pNode;
+ FX_SAXNODE m_eNode;
+ FX_DWORD m_dwID;
+ FX_BOOL m_bSkip;
+ CFX_SAXItem* m_pPrev;
+ CFX_SAXItem* m_pNext;
+};
+class CFX_SAXCommentContext : public CFX_Object
+{
+public:
+ CFX_SAXCommentContext() : m_iHeaderCount(0)
+ , m_iTailCount(0)
+ {
+ }
+ FX_INT32 m_iHeaderCount;
+ FX_INT32 m_iTailCount;
+};
+class CFX_SAXReader : public IFX_SAXReader, public CFX_Object
+{
+public:
+ CFX_SAXReader();
+ ~CFX_SAXReader();
+ virtual void Release()
+ {
+ delete this;
+ }
+ virtual FX_INT32 StartParse(IFX_FileRead *pFile, FX_DWORD dwStart = 0, FX_DWORD dwLen = -1, FX_DWORD dwParseMode = 0);
+ virtual FX_INT32 ContinueParse(IFX_Pause *pPause = NULL);
+ virtual void SkipCurrentNode();
+ virtual void SetHandler(IFX_SAXReaderHandler *pHandler);
+ void AppendData(FX_BYTE ch);
+ void AppendName(FX_BYTE ch);
+ void ParseText();
+ void ParseNodeStart();
+ void ParseInstruction();
+ void ParseDeclOrComment();
+ void ParseDeclNode();
+ void ParseComment();
+ void ParseCommentContent();
+ void ParseTagName();
+ void ParseTagAttributeName();
+ void ParseTagAttributeEqual();
+ void ParseTagAttributeValue();
+ void ParseMaybeClose();
+ void ParseTagClose();
+ void ParseTagEnd();
+ void ParseTargetData();
+protected:
+ CFX_SAXFile m_File;
+ IFX_SAXReaderHandler* m_pHandler;
+ FX_INT32 m_iState;
+ CFX_SAXItem* m_pRoot;
+ CFX_SAXItem* m_pCurItem;
+ FX_DWORD m_dwItemID;
+ FX_SAXMODE m_eMode;
+ FX_SAXMODE m_ePrevMode;
+ FX_BOOL m_bCharData;
+ FX_BYTE m_CurByte;
+ FX_DWORD m_dwDataOffset;
+ CFX_ByteArray m_SkipStack;
+ FX_BYTE m_SkipChar;
+ FX_DWORD m_dwNodePos;
+ FX_LPBYTE m_pszData;
+ FX_INT32 m_iDataSize;
+ FX_INT32 m_iDataLength;
+ FX_INT32 m_iEntityStart;
+ FX_INT32 m_iDataPos;
+ FX_LPBYTE m_pszName;
+ FX_INT32 m_iNameSize;
+ FX_INT32 m_iNameLength;
+ FX_DWORD m_dwParseMode;
+ CFX_SAXCommentContext *m_pCommentContext;
+ void Reset();
+ void Push();
+ void Pop();
+ FX_BOOL SkipSpace(FX_BYTE ch);
+ void SkipNode();
+ void NotifyData();
+ void NotifyEnter();
+ void NotifyAttribute();
+ void NotifyBreak();
+ void NotifyClose();
+ void NotifyEnd();
+ void NotifyTargetData();
+ void ReallocDataBuffer();
+ void ReallocNameBuffer();
+ void ParseChar(FX_BYTE ch);
+};
+#endif
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