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// 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 XFA_FGAS_XML_FGAS_SAX_H_
#define XFA_FGAS_XML_FGAS_SAX_H_
#include "core/fxcrt/include/fx_basic.h"
#define FX_SAXPARSEMODE_NotConvert_amp 0x0001
#define FX_SAXPARSEMODE_NotConvert_lt 0x0002
#define FX_SAXPARSEMODE_NotConvert_gt 0x0004
#define FX_SAXPARSEMODE_NotConvert_apos 0x0008
#define FX_SAXPARSEMODE_NotConvert_quot 0x0010
#define FX_SAXPARSEMODE_NotConvert_sharp 0x0020
#define FX_SAXPARSEMODE_NotSkipSpace 0x0100
enum FX_SAXNODE {
FX_SAXNODE_Unknown = 0,
FX_SAXNODE_Instruction,
FX_SAXNODE_Declaration,
FX_SAXNODE_Comment,
FX_SAXNODE_Tag,
FX_SAXNODE_Text,
FX_SAXNODE_CharData,
};
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 CXFA_SAXReaderHandler;
class CFX_SAXFile {
public:
CFX_SAXFile();
FX_BOOL StartFile(IFX_FileRead* pFile, uint32_t dwStart, uint32_t dwLen);
FX_BOOL ReadNextBlock();
void Reset();
IFX_FileRead* m_pFile;
uint32_t m_dwStart;
uint32_t m_dwEnd;
uint32_t m_dwCur;
uint8_t* m_pBuf;
uint32_t m_dwBufSize;
uint32_t m_dwBufIndex;
};
class CFX_SAXItem {
public:
CFX_SAXItem()
: m_pNode(NULL),
m_eNode(FX_SAXNODE_Unknown),
m_dwID(0),
m_bSkip(FALSE),
m_pPrev(NULL),
m_pNext(NULL) {}
void* m_pNode;
FX_SAXNODE m_eNode;
uint32_t m_dwID;
FX_BOOL m_bSkip;
CFX_SAXItem* m_pPrev;
CFX_SAXItem* m_pNext;
};
class CFX_SAXCommentContext {
public:
CFX_SAXCommentContext() : m_iHeaderCount(0), m_iTailCount(0) {}
int32_t m_iHeaderCount;
int32_t m_iTailCount;
};
class CFX_SAXReader {
public:
CFX_SAXReader();
~CFX_SAXReader();
void Release() { delete this; }
int32_t StartParse(IFX_FileRead* pFile,
uint32_t dwStart = 0,
uint32_t dwLen = -1,
uint32_t dwParseMode = 0);
int32_t ContinueParse(IFX_Pause* pPause = NULL);
void SkipCurrentNode();
void SetHandler(CXFA_SAXReaderHandler* pHandler);
void AppendData(uint8_t ch);
void AppendName(uint8_t 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:
void Reset();
void Push();
void Pop();
FX_BOOL SkipSpace(uint8_t ch);
void SkipNode();
void NotifyData();
void NotifyEnter();
void NotifyAttribute();
void NotifyBreak();
void NotifyClose();
void NotifyEnd();
void NotifyTargetData();
void ReallocDataBuffer();
void ReallocNameBuffer();
void ParseChar(uint8_t ch);
CFX_SAXFile m_File;
CXFA_SAXReaderHandler* m_pHandler;
int32_t m_iState;
CFX_SAXItem* m_pRoot;
CFX_SAXItem* m_pCurItem;
uint32_t m_dwItemID;
FX_SAXMODE m_eMode;
FX_SAXMODE m_ePrevMode;
FX_BOOL m_bCharData;
uint8_t m_CurByte;
uint32_t m_dwDataOffset;
CFX_ByteArray m_SkipStack;
uint8_t m_SkipChar;
uint32_t m_dwNodePos;
uint8_t* m_pszData;
int32_t m_iDataSize;
int32_t m_iDataLength;
int32_t m_iEntityStart;
int32_t m_iDataPos;
uint8_t* m_pszName;
int32_t m_iNameSize;
int32_t m_iNameLength;
uint32_t m_dwParseMode;
CFX_SAXCommentContext* m_pCommentContext;
};
#endif // XFA_FGAS_XML_FGAS_SAX_H_
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