1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FXCRT_FX_EXT_H_
#define CORE_FXCRT_FX_EXT_H_
#include <cctype>
#include <cwctype>
#include "core/fxcrt/fx_basic.h"
#define FX_INVALID_OFFSET static_cast<uint32_t>(-1)
// TODO(thestig) Using unique_ptr with ReleaseDeleter is still not ideal.
// Come up or wait for something better. This appears in this file rather
// than fx_stream.h due to include ordering restrictions.
using ScopedFileStream =
std::unique_ptr<IFX_SeekableStream, ReleaseDeleter<IFX_SeekableStream>>;
FX_FLOAT FXSYS_tan(FX_FLOAT a);
FX_FLOAT FXSYS_logb(FX_FLOAT b, FX_FLOAT x);
FX_FLOAT FXSYS_strtof(const FX_CHAR* pcsStr,
int32_t iLength = -1,
int32_t* pUsedLen = nullptr);
FX_FLOAT FXSYS_wcstof(const FX_WCHAR* pwsStr,
int32_t iLength = -1,
int32_t* pUsedLen = nullptr);
FX_WCHAR* FXSYS_wcsncpy(FX_WCHAR* dstStr, const FX_WCHAR* srcStr, size_t count);
int32_t FXSYS_wcsnicmp(const FX_WCHAR* s1, const FX_WCHAR* s2, size_t count);
int32_t FXSYS_strnicmp(const FX_CHAR* s1, const FX_CHAR* s2, size_t count);
inline bool FXSYS_islower(int32_t ch) {
return ch >= 'a' && ch <= 'z';
}
inline bool FXSYS_isupper(int32_t ch) {
return ch >= 'A' && ch <= 'Z';
}
inline int32_t FXSYS_tolower(int32_t ch) {
return ch < 'A' || ch > 'Z' ? ch : (ch + 0x20);
}
inline int32_t FXSYS_toupper(int32_t ch) {
return ch < 'a' || ch > 'z' ? ch : (ch - 0x20);
}
inline bool FXSYS_iswalpha(wchar_t wch) {
return (wch >= L'A' && wch <= L'Z') || (wch >= L'a' && wch <= L'z');
}
inline bool FXSYS_iswdigit(wchar_t wch) {
return wch >= L'0' && wch <= L'9';
}
inline bool FXSYS_iswalnum(wchar_t wch) {
return FXSYS_iswalpha(wch) || FXSYS_iswdigit(wch);
}
inline bool FXSYS_iswspace(FX_WCHAR c) {
return (c == 0x20) || (c == 0x0d) || (c == 0x0a) || (c == 0x09);
}
inline int FXSYS_toHexDigit(const FX_CHAR c) {
if (!std::isxdigit(c))
return 0;
char upchar = std::toupper(c);
return upchar > '9' ? upchar - 'A' + 10 : upchar - '0';
}
inline bool FXSYS_isDecimalDigit(const FX_CHAR c) {
return !!std::isdigit(c);
}
inline bool FXSYS_isDecimalDigit(const FX_WCHAR c) {
return !!std::iswdigit(c);
}
inline int FXSYS_toDecimalDigit(const FX_CHAR c) {
return std::isdigit(c) ? c - '0' : 0;
}
inline int FXSYS_toDecimalDigit(const FX_WCHAR c) {
return std::iswdigit(c) ? c - L'0' : 0;
}
FX_FLOAT FXSYS_FractionalScale(size_t scale_factor, int value);
int FXSYS_FractionalScaleCount();
void* FX_Random_MT_Start(uint32_t dwSeed);
void FX_Random_MT_Close(void* pContext);
uint32_t FX_Random_MT_Generate(void* pContext);
void FX_Random_GenerateBase(uint32_t* pBuffer, int32_t iCount);
void FX_Random_GenerateMT(uint32_t* pBuffer, int32_t iCount);
void FX_Random_GenerateCrypto(uint32_t* pBuffer, int32_t iCount);
#ifdef PDF_ENABLE_XFA
typedef struct FX_GUID {
uint32_t data1;
uint16_t data2;
uint16_t data3;
uint8_t data4[8];
} FX_GUID, *FX_LPGUID;
typedef FX_GUID const* FX_LPCGUID;
void FX_GUID_CreateV4(FX_LPGUID pGUID);
void FX_GUID_ToString(FX_LPCGUID pGUID,
CFX_ByteString& bsStr,
FX_BOOL bSeparator = TRUE);
#endif // PDF_ENABLE_XFA
template <class baseType>
class CFX_SSortTemplate {
public:
void ShellSort(baseType* pArray, int32_t iCount) {
ASSERT(pArray && iCount > 0);
int32_t i, j, gap;
baseType v1, v2;
gap = iCount >> 1;
while (gap > 0) {
for (i = gap; i < iCount; i++) {
j = i - gap;
v1 = pArray[i];
while (j > -1 && (v2 = pArray[j]) > v1) {
pArray[j + gap] = v2;
j -= gap;
}
pArray[j + gap] = v1;
}
gap >>= 1;
}
}
};
#endif // CORE_FXCRT_FX_EXT_H_
|
