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Side by Side Diff: core/src/fpdfapi/fpdf_parser/cfdf_document.cpp

Issue 1800523005: Move core/src/ up to core/. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 4 years, 9 months ago
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1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #include "core/include/fpdfapi/cfdf_document.h"
8
9 #include "core/include/fpdfapi/cpdf_dictionary.h"
10 #include "core/include/fpdfapi/fpdf_serial.h"
11 #include "core/src/fpdfapi/fpdf_parser/cpdf_syntax_parser.h"
12
13 CFDF_Document::CFDF_Document() : CPDF_IndirectObjectHolder(NULL) {
14 m_pRootDict = NULL;
15 m_pFile = NULL;
16 m_bOwnFile = FALSE;
17 }
18 CFDF_Document::~CFDF_Document() {
19 if (m_bOwnFile && m_pFile) {
20 m_pFile->Release();
21 }
22 }
23 CFDF_Document* CFDF_Document::CreateNewDoc() {
24 CFDF_Document* pDoc = new CFDF_Document;
25 pDoc->m_pRootDict = new CPDF_Dictionary;
26 pDoc->AddIndirectObject(pDoc->m_pRootDict);
27 CPDF_Dictionary* pFDFDict = new CPDF_Dictionary;
28 pDoc->m_pRootDict->SetAt("FDF", pFDFDict);
29 return pDoc;
30 }
31 CFDF_Document* CFDF_Document::ParseFile(IFX_FileRead* pFile, FX_BOOL bOwnFile) {
32 if (!pFile) {
33 return NULL;
34 }
35 CFDF_Document* pDoc = new CFDF_Document;
36 pDoc->ParseStream(pFile, bOwnFile);
37 if (!pDoc->m_pRootDict) {
38 delete pDoc;
39 return NULL;
40 }
41 return pDoc;
42 }
43 CFDF_Document* CFDF_Document::ParseMemory(const uint8_t* pData, FX_DWORD size) {
44 return CFDF_Document::ParseFile(FX_CreateMemoryStream((uint8_t*)pData, size),
45 TRUE);
46 }
47 void CFDF_Document::ParseStream(IFX_FileRead* pFile, FX_BOOL bOwnFile) {
48 m_pFile = pFile;
49 m_bOwnFile = bOwnFile;
50 CPDF_SyntaxParser parser;
51 parser.InitParser(m_pFile, 0);
52 while (1) {
53 bool bNumber;
54 CFX_ByteString word = parser.GetNextWord(&bNumber);
55 if (bNumber) {
56 FX_DWORD objnum = FXSYS_atoui(word);
57 word = parser.GetNextWord(&bNumber);
58 if (!bNumber) {
59 break;
60 }
61 word = parser.GetNextWord(nullptr);
62 if (word != "obj") {
63 break;
64 }
65 CPDF_Object* pObj = parser.GetObject(this, objnum, 0, true);
66 if (!pObj) {
67 break;
68 }
69 InsertIndirectObject(objnum, pObj);
70 word = parser.GetNextWord(nullptr);
71 if (word != "endobj") {
72 break;
73 }
74 } else {
75 if (word != "trailer") {
76 break;
77 }
78 if (CPDF_Dictionary* pMainDict =
79 ToDictionary(parser.GetObject(this, 0, 0, true))) {
80 m_pRootDict = pMainDict->GetDictBy("Root");
81 pMainDict->Release();
82 }
83 break;
84 }
85 }
86 }
87 FX_BOOL CFDF_Document::WriteBuf(CFX_ByteTextBuf& buf) const {
88 if (!m_pRootDict) {
89 return FALSE;
90 }
91 buf << "%FDF-1.2\r\n";
92 for (const auto& pair : m_IndirectObjs) {
93 buf << pair.first << " 0 obj\r\n" << pair.second << "\r\nendobj\r\n\r\n";
94 }
95 buf << "trailer\r\n<</Root " << m_pRootDict->GetObjNum()
96 << " 0 R>>\r\n%%EOF\r\n";
97 return TRUE;
98 }
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