blob: f3e649242dfc0061f03afb6f3f05570d65e4aedf (
plain)
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
|
// file : xsde/cxx/iso8859-1.ixx
// copyright : Copyright (c) 2005-2014 Code Synthesis Tools CC
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
namespace xsde
{
namespace cxx
{
inline bool iso8859_1::
ascii_utf (const char* s, size_t& rn)
{
// NULL string is an ASCII string.
//
if (s == 0)
return true;
bool r = true;
size_t l = 0;
for (; *s != 0; ++s, ++l)
{
unsigned char c = *s;
if (c > 0x7F)
{
if ((c >> 5) == 0x06)
++s;
else if ((c >> 4) == 0x0E)
s += 2;
else if ((c >> 3) == 0x1E)
s += 3;
r = false;
}
}
rn = l + 1;
return r;
}
inline bool iso8859_1::
ascii_utf (const char* s, size_t n, size_t& rn)
{
// NULL string is an ASCII string.
//
if (s == 0)
return true;
bool r = true;
size_t l = 0;
const char* end = s + n;
for (; s != end; ++s, ++l)
{
unsigned char c = *s;
if (c > 0x7F)
{
if ((c >> 5) == 0x06)
++s;
else if ((c >> 4) == 0x0E)
s += 2;
else if ((c >> 3) == 0x1E)
s += 3;
r = false;
}
}
rn = l + 1;
return r;
}
inline bool iso8859_1::
ascii_iso (const char* s, size_t& rn)
{
// NULL string is an ASCII string.
//
if (s == 0)
return true;
bool r = true;
size_t l = 0;
for (; *s != 0; ++s, ++l)
{
unsigned char c = *s;
if (c > 0x7F)
{
++l; // 2-byte surrogate.
r = false;
}
}
rn = l + 1;
return r;
}
inline bool iso8859_1::
ascii_iso (const char* s, size_t n, size_t& rn)
{
// NULL string is an ASCII string.
//
if (s == 0)
return true;
bool r = true;
size_t l = 0;
const char* end = s + n;
for (; s != end; ++s, ++l)
{
unsigned char c = *s;
if (c > 0x7F)
{
++l; // 2-byte surrogate.
r = false;
}
}
rn = l + 1;
return r;
}
}
}
|