1 // Copyright 2016 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 #ifndef CORE_FPDFAPI_PARSER_FPDF_PARSER_UTILITY_H_
8 #define CORE_FPDFAPI_PARSER_FPDF_PARSER_UTILITY_H_
9 
10 #include "core/fxcrt/cfx_retain_ptr.h"
11 #include "core/fxcrt/fx_string.h"
12 #include "core/fxcrt/fx_system.h"
13 
14 class IFX_SeekableReadStream;
15 class CPDF_Dictionary;
16 
17 // Use the accessors below instead of directly accessing PDF_CharType.
18 extern const char PDF_CharType[256];
19 
PDFCharIsWhitespace(uint8_t c)20 inline bool PDFCharIsWhitespace(uint8_t c) {
21   return PDF_CharType[c] == 'W';
22 }
PDFCharIsNumeric(uint8_t c)23 inline bool PDFCharIsNumeric(uint8_t c) {
24   return PDF_CharType[c] == 'N';
25 }
PDFCharIsDelimiter(uint8_t c)26 inline bool PDFCharIsDelimiter(uint8_t c) {
27   return PDF_CharType[c] == 'D';
28 }
PDFCharIsOther(uint8_t c)29 inline bool PDFCharIsOther(uint8_t c) {
30   return PDF_CharType[c] == 'R';
31 }
32 
PDFCharIsLineEnding(uint8_t c)33 inline bool PDFCharIsLineEnding(uint8_t c) {
34   return c == '\r' || c == '\n';
35 }
36 
37 int32_t GetHeaderOffset(const CFX_RetainPtr<IFX_SeekableReadStream>& pFile);
38 int32_t GetDirectInteger(CPDF_Dictionary* pDict, const CFX_ByteString& key);
39 
40 #endif  // CORE_FPDFAPI_PARSER_FPDF_PARSER_UTILITY_H_
41