// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef XFA_FDE_XML_CFX_SAXREADER_H_
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#define XFA_FDE_XML_CFX_SAXREADER_H_
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#include "core/fxcrt/include/fx_basic.h"
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class CXFA_SAXContext;
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class CFX_SAXItem {
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public:
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enum class Type {
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Unknown = 0,
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Instruction,
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Declaration,
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Comment,
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Tag,
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Text,
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CharData,
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};
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CFX_SAXItem()
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: m_pNode(nullptr),
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m_eNode(Type::Unknown),
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m_dwID(0),
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m_bSkip(FALSE),
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m_pPrev(nullptr),
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m_pNext(nullptr) {}
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CXFA_SAXContext* m_pNode;
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Type m_eNode;
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uint32_t m_dwID;
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FX_BOOL m_bSkip;
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CFX_SAXItem* m_pPrev;
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CFX_SAXItem* m_pNext;
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};
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class CFX_SAXFile {
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public:
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CFX_SAXFile();
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FX_BOOL StartFile(IFX_FileRead* pFile, uint32_t dwStart, uint32_t dwLen);
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FX_BOOL ReadNextBlock();
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void Reset();
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IFX_FileRead* m_pFile;
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uint32_t m_dwStart;
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uint32_t m_dwEnd;
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uint32_t m_dwCur;
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uint8_t* m_pBuf;
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uint32_t m_dwBufSize;
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uint32_t m_dwBufIndex;
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};
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class CFX_SAXCommentContext;
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enum class CFX_SaxMode;
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enum CFX_SaxParseMode {
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CFX_SaxParseMode_NotConvert_amp = 1 << 0,
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CFX_SaxParseMode_NotConvert_lt = 1 << 1,
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CFX_SaxParseMode_NotConvert_gt = 1 << 2,
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CFX_SaxParseMode_NotConvert_apos = 1 << 3,
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CFX_SaxParseMode_NotConvert_quot = 1 << 4,
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CFX_SaxParseMode_NotConvert_sharp = 1 << 5,
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CFX_SaxParseMode_NotSkipSpace = 1 << 6
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};
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class CXFA_SAXReaderHandler;
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class CFX_SAXReader {
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public:
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CFX_SAXReader();
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~CFX_SAXReader();
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int32_t StartParse(IFX_FileRead* pFile,
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uint32_t dwStart = 0,
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uint32_t dwLen = -1,
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uint32_t dwParseMode = 0);
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int32_t ContinueParse(IFX_Pause* pPause = nullptr);
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void SkipCurrentNode();
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void SetHandler(CXFA_SAXReaderHandler* pHandler);
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void AppendData(uint8_t ch);
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void AppendName(uint8_t ch);
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void ParseText();
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void ParseNodeStart();
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void ParseInstruction();
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void ParseDeclOrComment();
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void ParseDeclNode();
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void ParseComment();
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void ParseCommentContent();
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void ParseTagName();
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void ParseTagAttributeName();
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void ParseTagAttributeEqual();
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void ParseTagAttributeValue();
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void ParseMaybeClose();
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void ParseTagClose();
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void ParseTagEnd();
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void ParseTargetData();
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private:
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void Reset();
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void Push();
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void Pop();
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FX_BOOL SkipSpace(uint8_t ch);
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void SkipNode();
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void NotifyData();
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void NotifyEnter();
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void NotifyAttribute();
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void NotifyBreak();
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void NotifyClose();
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void NotifyEnd();
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void NotifyTargetData();
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void ReallocDataBuffer();
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void ReallocNameBuffer();
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void ParseChar(uint8_t ch);
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CFX_SAXFile m_File;
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CXFA_SAXReaderHandler* m_pHandler;
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int32_t m_iState;
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CFX_SAXItem* m_pRoot;
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CFX_SAXItem* m_pCurItem;
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uint32_t m_dwItemID;
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CFX_SaxMode m_eMode;
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CFX_SaxMode m_ePrevMode;
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FX_BOOL m_bCharData;
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uint8_t m_CurByte;
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uint32_t m_dwDataOffset;
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CFX_ByteArray m_SkipStack;
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uint8_t m_SkipChar;
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uint32_t m_dwNodePos;
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uint8_t* m_pszData;
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int32_t m_iDataSize;
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int32_t m_iDataLength;
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int32_t m_iEntityStart;
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int32_t m_iDataPos;
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uint8_t* m_pszName;
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int32_t m_iNameSize;
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int32_t m_iNameLength;
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uint32_t m_dwParseMode;
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CFX_SAXCommentContext* m_pCommentContext;
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};
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#endif // XFA_FDE_XML_CFX_SAXREADER_H_
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