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1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 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_SRC_FXCRT_XML_INT_H_ | 7 #ifndef CORE_SRC_FXCRT_XML_INT_H_ |
8 #define CORE_SRC_FXCRT_XML_INT_H_ | 8 #define CORE_SRC_FXCRT_XML_INT_H_ |
9 | 9 |
10 #include "../../include/fxcrt/fx_stream.h" | 10 #include "../../include/fxcrt/fx_stream.h" |
11 | 11 |
12 class CXML_DataBufAcc : public IFX_BufferRead | 12 class CXML_DataBufAcc : public IFX_BufferRead { |
13 { | 13 public: |
14 public: | 14 CXML_DataBufAcc(const uint8_t* pBuffer, size_t size) |
15 CXML_DataBufAcc(const uint8_t* pBuffer, size_t size) | 15 : m_pBuffer(pBuffer), m_dwSize(size), m_dwCurPos(0) {} |
16 : m_pBuffer(pBuffer) | 16 virtual ~CXML_DataBufAcc() {} |
17 , m_dwSize(size) | 17 virtual void Release() { delete this; } |
18 , m_dwCurPos(0) | 18 virtual FX_BOOL IsEOF() { return m_dwCurPos >= m_dwSize; } |
19 { | 19 virtual FX_FILESIZE GetPosition() { return (FX_FILESIZE)m_dwCurPos; } |
| 20 virtual size_t ReadBlock(void* buffer, size_t size) { return 0; } |
| 21 virtual FX_BOOL ReadNextBlock(FX_BOOL bRestart = FALSE) { |
| 22 if (bRestart) { |
| 23 m_dwCurPos = 0; |
20 } | 24 } |
21 virtual ~CXML_DataBufAcc() {} | 25 if (m_dwCurPos < m_dwSize) { |
22 virtual void» » » Release() | 26 m_dwCurPos = m_dwSize; |
23 { | 27 return TRUE; |
24 delete this; | |
25 } | 28 } |
26 virtual FX_BOOL» » » IsEOF() | 29 return FALSE; |
27 { | 30 } |
28 return m_dwCurPos >= m_dwSize; | 31 virtual const uint8_t* GetBlockBuffer() { return m_pBuffer; } |
| 32 virtual size_t GetBlockSize() { return m_dwSize; } |
| 33 virtual FX_FILESIZE GetBlockOffset() { return 0; } |
| 34 |
| 35 protected: |
| 36 const uint8_t* m_pBuffer; |
| 37 size_t m_dwSize; |
| 38 size_t m_dwCurPos; |
| 39 }; |
| 40 #define FX_XMLDATASTREAM_BufferSize (32 * 1024) |
| 41 class CXML_DataStmAcc : public IFX_BufferRead { |
| 42 public: |
| 43 CXML_DataStmAcc(IFX_FileRead* pFileRead) |
| 44 : m_pFileRead(pFileRead), m_pBuffer(NULL), m_nStart(0), m_dwSize(0) { |
| 45 FXSYS_assert(m_pFileRead != NULL); |
| 46 } |
| 47 virtual ~CXML_DataStmAcc() { |
| 48 if (m_pBuffer) { |
| 49 FX_Free(m_pBuffer); |
29 } | 50 } |
30 virtual FX_FILESIZE»» GetPosition() | 51 } |
31 { | 52 virtual void Release() { delete this; } |
32 return (FX_FILESIZE)m_dwCurPos; | 53 virtual FX_BOOL IsEOF() { |
| 54 return m_nStart + (FX_FILESIZE)m_dwSize >= m_pFileRead->GetSize(); |
| 55 } |
| 56 virtual FX_FILESIZE GetPosition() { return m_nStart + (FX_FILESIZE)m_dwSize; } |
| 57 virtual size_t ReadBlock(void* buffer, size_t size) { return 0; } |
| 58 virtual FX_BOOL ReadNextBlock(FX_BOOL bRestart = FALSE) { |
| 59 if (bRestart) { |
| 60 m_nStart = 0; |
33 } | 61 } |
34 virtual size_t» » » ReadBlock(void* buffer, size_t size) | 62 FX_FILESIZE nLength = m_pFileRead->GetSize(); |
35 { | 63 m_nStart += (FX_FILESIZE)m_dwSize; |
36 return 0; | 64 if (m_nStart >= nLength) { |
| 65 return FALSE; |
37 } | 66 } |
38 virtual FX_BOOL» » » ReadNextBlock(FX_BOOL bRestart = FALSE) | 67 m_dwSize = (size_t)FX_MIN(FX_XMLDATASTREAM_BufferSize, nLength - m_nStart); |
39 { | 68 if (!m_pBuffer) { |
40 if (bRestart) { | 69 m_pBuffer = FX_Alloc(uint8_t, m_dwSize); |
41 m_dwCurPos = 0; | |
42 } | |
43 if (m_dwCurPos < m_dwSize) { | |
44 m_dwCurPos = m_dwSize; | |
45 return TRUE; | |
46 } | |
47 return FALSE; | |
48 } | 70 } |
49 virtual const uint8_t*» » GetBlockBuffer() | 71 return m_pFileRead->ReadBlock(m_pBuffer, m_nStart, m_dwSize); |
50 { | 72 } |
51 return m_pBuffer; | 73 virtual const uint8_t* GetBlockBuffer() { return (const uint8_t*)m_pBuffer; } |
52 } | 74 virtual size_t GetBlockSize() { return m_dwSize; } |
53 virtual size_t» » » GetBlockSize() | 75 virtual FX_FILESIZE GetBlockOffset() { return m_nStart; } |
54 { | 76 |
55 return m_dwSize; | 77 protected: |
56 } | 78 IFX_FileRead* m_pFileRead; |
57 virtual FX_FILESIZE»» GetBlockOffset() | 79 uint8_t* m_pBuffer; |
58 { | 80 FX_FILESIZE m_nStart; |
59 return 0; | 81 size_t m_dwSize; |
60 } | |
61 protected: | |
62 const uint8_t*» » m_pBuffer; | |
63 size_t» » » m_dwSize; | |
64 size_t» » » m_dwCurPos; | |
65 }; | 82 }; |
66 #define FX_XMLDATASTREAM_BufferSize» » (32 * 1024) | 83 class CXML_Parser { |
67 class CXML_DataStmAcc : public IFX_BufferRead | 84 public: |
68 { | 85 ~CXML_Parser(); |
69 public: | 86 IFX_BufferRead* m_pDataAcc; |
70 CXML_DataStmAcc(IFX_FileRead *pFileRead) | 87 FX_BOOL m_bOwnedStream; |
71 : m_pFileRead(pFileRead) | 88 FX_FILESIZE m_nOffset; |
72 , m_pBuffer(NULL) | 89 FX_BOOL m_bSaveSpaceChars; |
73 , m_nStart(0) | 90 const uint8_t* m_pBuffer; |
74 , m_dwSize(0) | 91 size_t m_dwBufferSize; |
75 { | 92 FX_FILESIZE m_nBufferOffset; |
76 FXSYS_assert(m_pFileRead != NULL); | 93 size_t m_dwIndex; |
77 } | 94 FX_BOOL Init(uint8_t* pBuffer, size_t size); |
78 virtual ~CXML_DataStmAcc() | 95 FX_BOOL Init(IFX_FileRead* pFileRead); |
79 { | 96 FX_BOOL Init(IFX_BufferRead* pBuffer); |
80 if (m_pBuffer) { | 97 FX_BOOL Init(FX_BOOL bOwndedStream); |
81 FX_Free(m_pBuffer); | 98 FX_BOOL ReadNextBlock(); |
82 } | 99 FX_BOOL IsEOF(); |
83 } | 100 FX_BOOL HaveAvailData(); |
84 virtual void» » » Release() | 101 void SkipWhiteSpaces(); |
85 { | 102 void GetName(CFX_ByteString& space, CFX_ByteString& name); |
86 delete this; | 103 void GetAttrValue(CFX_WideString& value); |
87 } | 104 FX_DWORD GetCharRef(); |
88 virtual FX_BOOL» » » IsEOF() | 105 void GetTagName(CFX_ByteString& space, |
89 { | 106 CFX_ByteString& name, |
90 return m_nStart + (FX_FILESIZE)m_dwSize >= m_pFileRead->GetSize(); | 107 FX_BOOL& bEndTag, |
91 } | 108 FX_BOOL bStartTag = FALSE); |
92 virtual FX_FILESIZE»» GetPosition() | 109 void SkipLiterals(const CFX_ByteStringC& str); |
93 { | 110 CXML_Element* ParseElement(CXML_Element* pParent, FX_BOOL bStartTag = FALSE); |
94 return m_nStart + (FX_FILESIZE)m_dwSize; | 111 void InsertContentSegment(FX_BOOL bCDATA, |
95 } | 112 const CFX_WideStringC& content, |
96 virtual size_t» » » ReadBlock(void* buffer, size_t size) | 113 CXML_Element* pElement); |
97 { | 114 void InsertCDATASegment(CFX_UTF8Decoder& decoder, CXML_Element* pElement); |
98 return 0; | |
99 } | |
100 virtual FX_BOOL» » » ReadNextBlock(FX_BOOL bRestart = FALSE) | |
101 { | |
102 if (bRestart) { | |
103 m_nStart = 0; | |
104 } | |
105 FX_FILESIZE nLength = m_pFileRead->GetSize(); | |
106 m_nStart += (FX_FILESIZE)m_dwSize; | |
107 if (m_nStart >= nLength) { | |
108 return FALSE; | |
109 } | |
110 m_dwSize = (size_t)FX_MIN(FX_XMLDATASTREAM_BufferSize, nLength - m_nStar
t); | |
111 if (!m_pBuffer) { | |
112 m_pBuffer = FX_Alloc(uint8_t, m_dwSize); | |
113 } | |
114 return m_pFileRead->ReadBlock(m_pBuffer, m_nStart, m_dwSize); | |
115 } | |
116 virtual const uint8_t*» » GetBlockBuffer() | |
117 { | |
118 return (const uint8_t*)m_pBuffer; | |
119 } | |
120 virtual size_t» » » GetBlockSize() | |
121 { | |
122 return m_dwSize; | |
123 } | |
124 virtual FX_FILESIZE»» GetBlockOffset() | |
125 { | |
126 return m_nStart; | |
127 } | |
128 protected: | |
129 IFX_FileRead» *m_pFileRead; | |
130 uint8_t*» » m_pBuffer; | |
131 FX_FILESIZE»» m_nStart; | |
132 size_t» » » m_dwSize; | |
133 }; | 115 }; |
134 class CXML_Parser | 116 void FX_XML_SplitQualifiedName(const CFX_ByteStringC& bsFullName, |
135 { | 117 CFX_ByteStringC& bsSpace, |
136 public: | 118 CFX_ByteStringC& bsName); |
137 ~CXML_Parser(); | |
138 IFX_BufferRead*» m_pDataAcc; | |
139 FX_BOOL» » » m_bOwnedStream; | |
140 FX_FILESIZE»» m_nOffset; | |
141 FX_BOOL» » » m_bSaveSpaceChars; | |
142 const uint8_t*» » m_pBuffer; | |
143 size_t» » » m_dwBufferSize; | |
144 FX_FILESIZE»» m_nBufferOffset; | |
145 size_t» » » m_dwIndex; | |
146 FX_BOOL» » » Init(uint8_t* pBuffer, size_t size); | |
147 FX_BOOL» » » Init(IFX_FileRead *pFileRead); | |
148 FX_BOOL» » » Init(IFX_BufferRead *pBuffer); | |
149 FX_BOOL» » » Init(FX_BOOL bOwndedStream); | |
150 FX_BOOL» » » ReadNextBlock(); | |
151 FX_BOOL» » » IsEOF(); | |
152 FX_BOOL» » » HaveAvailData(); | |
153 void» » » SkipWhiteSpaces(); | |
154 void» » » GetName(CFX_ByteString& space, CFX_ByteString& n
ame); | |
155 void» » » GetAttrValue(CFX_WideString &value); | |
156 FX_DWORD» » GetCharRef(); | |
157 void» » » GetTagName(CFX_ByteString &space, CFX_ByteString
&name, FX_BOOL &bEndTag, FX_BOOL bStartTag = FALSE); | |
158 void» » » SkipLiterals(const CFX_ByteStringC& str); | |
159 CXML_Element*» ParseElement(CXML_Element* pParent, FX_BOOL bStartTag =
FALSE); | |
160 void» » » InsertContentSegment(FX_BOOL bCDATA, const CFX_W
ideStringC& content, CXML_Element* pElement); | |
161 void» » » InsertCDATASegment(CFX_UTF8Decoder& decoder, CXM
L_Element* pElement); | |
162 }; | |
163 void FX_XML_SplitQualifiedName(const CFX_ByteStringC& bsFullName, CFX_ByteString
C &bsSpace, CFX_ByteStringC &bsName); | |
164 | 119 |
165 #endif // CORE_SRC_FXCRT_XML_INT_H_ | 120 #endif // CORE_SRC_FXCRT_XML_INT_H_ |
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