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1 // Copyright 2016 PDFium Authors. All rights reserved. | 1 // Copyright 2016 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #ifndef CORE_FPDFAPI_FPDF_PARSER_CPDF_SYNTAX_PARSER_H_ | 7 #ifndef CORE_FPDFAPI_FPDF_PARSER_CPDF_SYNTAX_PARSER_H_ |
8 #define CORE_FPDFAPI_FPDF_PARSER_CPDF_SYNTAX_PARSER_H_ | 8 #define CORE_FPDFAPI_FPDF_PARSER_CPDF_SYNTAX_PARSER_H_ |
9 | 9 |
10 #include <memory> | 10 #include <memory> |
11 | 11 |
| 12 #include "core/fxcrt/include/cfx_string_pool_template.h" |
| 13 #include "core/fxcrt/include/cfx_weak_ptr.h" |
12 #include "core/fxcrt/include/fx_basic.h" | 14 #include "core/fxcrt/include/fx_basic.h" |
13 | 15 |
14 class CPDF_CryptoHandler; | 16 class CPDF_CryptoHandler; |
15 class CPDF_Dictionary; | 17 class CPDF_Dictionary; |
16 class CPDF_IndirectObjectHolder; | 18 class CPDF_IndirectObjectHolder; |
17 class CPDF_Object; | 19 class CPDF_Object; |
18 class CPDF_Stream; | 20 class CPDF_Stream; |
19 class IFX_FileRead; | 21 class IFX_FileRead; |
20 | 22 |
21 class CPDF_SyntaxParser { | 23 class CPDF_SyntaxParser { |
22 public: | 24 public: |
23 CPDF_SyntaxParser(); | 25 CPDF_SyntaxParser(); |
| 26 explicit CPDF_SyntaxParser(const CFX_WeakPtr<CFX_ByteStringPool>& pPool); |
24 ~CPDF_SyntaxParser(); | 27 ~CPDF_SyntaxParser(); |
25 | 28 |
26 void InitParser(IFX_FileRead* pFileAccess, uint32_t HeaderOffset); | 29 void InitParser(IFX_FileRead* pFileAccess, uint32_t HeaderOffset); |
27 | 30 |
28 FX_FILESIZE SavePos() const { return m_Pos; } | 31 FX_FILESIZE SavePos() const { return m_Pos; } |
29 void RestorePos(FX_FILESIZE pos) { m_Pos = pos; } | 32 void RestorePos(FX_FILESIZE pos) { m_Pos = pos; } |
30 | 33 |
31 CPDF_Object* GetObject(CPDF_IndirectObjectHolder* pObjList, | 34 CPDF_Object* GetObject(CPDF_IndirectObjectHolder* pObjList, |
32 uint32_t objnum, | 35 uint32_t objnum, |
33 uint32_t gennum, | 36 uint32_t gennum, |
(...skipping 23 matching lines...) Expand all Loading... |
57 | 60 |
58 private: | 61 private: |
59 friend class CPDF_Parser; | 62 friend class CPDF_Parser; |
60 friend class CPDF_DataAvail; | 63 friend class CPDF_DataAvail; |
61 friend class cpdf_syntax_parser_ReadHexString_Test; | 64 friend class cpdf_syntax_parser_ReadHexString_Test; |
62 | 65 |
63 static const int kParserMaxRecursionDepth = 64; | 66 static const int kParserMaxRecursionDepth = 64; |
64 static int s_CurrentRecursionDepth; | 67 static int s_CurrentRecursionDepth; |
65 | 68 |
66 uint32_t GetDirectNum(); | 69 uint32_t GetDirectNum(); |
67 | |
68 FX_BOOL GetNextChar(uint8_t& ch); | 70 FX_BOOL GetNextChar(uint8_t& ch); |
69 FX_BOOL GetCharAtBackward(FX_FILESIZE pos, uint8_t& ch); | 71 FX_BOOL GetCharAtBackward(FX_FILESIZE pos, uint8_t& ch); |
70 void GetNextWordInternal(bool* bIsNumber); | 72 void GetNextWordInternal(bool* bIsNumber); |
71 bool IsWholeWord(FX_FILESIZE startpos, | 73 bool IsWholeWord(FX_FILESIZE startpos, |
72 FX_FILESIZE limit, | 74 FX_FILESIZE limit, |
73 const CFX_ByteStringC& tag, | 75 const CFX_ByteStringC& tag, |
74 FX_BOOL checkKeyword); | 76 FX_BOOL checkKeyword); |
75 | 77 |
76 CFX_ByteString ReadString(); | 78 CFX_ByteString ReadString(); |
77 CFX_ByteString ReadHexString(); | 79 CFX_ByteString ReadHexString(); |
78 unsigned int ReadEOLMarkers(FX_FILESIZE pos); | 80 unsigned int ReadEOLMarkers(FX_FILESIZE pos); |
79 CPDF_Stream* ReadStream(CPDF_Dictionary* pDict, | 81 CPDF_Stream* ReadStream(CPDF_Dictionary* pDict, |
80 uint32_t objnum, | 82 uint32_t objnum, |
81 uint32_t gennum); | 83 uint32_t gennum); |
82 | 84 |
| 85 CFX_ByteString MaybeIntern(const CFX_ByteString& str); |
| 86 |
83 FX_FILESIZE m_Pos; | 87 FX_FILESIZE m_Pos; |
84 int m_MetadataObjnum; | 88 int m_MetadataObjnum; |
85 IFX_FileRead* m_pFileAccess; | 89 IFX_FileRead* m_pFileAccess; |
86 FX_FILESIZE m_HeaderOffset; | 90 FX_FILESIZE m_HeaderOffset; |
87 FX_FILESIZE m_FileLen; | 91 FX_FILESIZE m_FileLen; |
88 uint8_t* m_pFileBuf; | 92 uint8_t* m_pFileBuf; |
89 uint32_t m_BufSize; | 93 uint32_t m_BufSize; |
90 FX_FILESIZE m_BufOffset; | 94 FX_FILESIZE m_BufOffset; |
91 std::unique_ptr<CPDF_CryptoHandler> m_pCryptoHandler; | 95 std::unique_ptr<CPDF_CryptoHandler> m_pCryptoHandler; |
92 uint8_t m_WordBuffer[257]; | 96 uint8_t m_WordBuffer[257]; |
93 uint32_t m_WordSize; | 97 uint32_t m_WordSize; |
| 98 CFX_WeakPtr<CFX_ByteStringPool> m_pPool; |
94 }; | 99 }; |
95 | 100 |
96 #endif // CORE_FPDFAPI_FPDF_PARSER_CPDF_SYNTAX_PARSER_H_ | 101 #endif // CORE_FPDFAPI_FPDF_PARSER_CPDF_SYNTAX_PARSER_H_ |
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