blob: acef18cdce4dfefc59843897f5f3b8923510024d (
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
|
// file : xsd/cxx/xml/char-iso8859-1.txx
// copyright : Copyright (c) 2005-2014 Code Synthesis Tools CC
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
#include <xsd/cxx/config.hxx> // XSD_CXX11
#ifdef XSD_CXX11
# include <memory> // std::unique_ptr
#else
# include <xsd/cxx/auto-array.hxx>
#endif
namespace xsd
{
namespace cxx
{
namespace xml
{
template <typename C>
C char_iso8859_1_transcoder<C>::unrep_char_ = 0;
template <typename C>
std::basic_string<C> char_iso8859_1_transcoder<C>::
to (const XMLCh* s, std::size_t len)
{
const XMLCh* end (s + len);
// Find what the resulting buffer size will be.
//
std::size_t rl (0);
unsigned int u (0); // Four byte UCS-4 char.
bool valid (true);
const XMLCh* p (s);
for (; p < end; ++p)
{
if (*p >= 0xD800 && *p <= 0xDBFF)
{
// Make sure we have one more char and it has a valid
// value for the second char in a surrogate pair.
//
if (++p == end || !((*p >= 0xDC00) && (*p <= 0xDFFF)))
{
valid = false;
break;
}
}
rl++;
}
if (!valid)
throw invalid_utf16_string ();
std::basic_string<C> r;
r.reserve (rl + 1);
r.resize (rl);
C* rs (const_cast<C*> (r.c_str ()));
std::size_t i (0);
p = s;
// Tight first loop for the common case.
//
for (; p < end && *p < 0x100; ++p)
rs[i++] = C (*p);
if (p < end && unrep_char_ == 0)
throw iso8859_1_unrepresentable ();
for (; p < end; ++p)
{
XMLCh x (*p);
if ((x >= 0xD800) && (x <= 0xDBFF))
{
u = ((x - 0xD800) << 10) + (*++p - 0xDC00) + 0x10000;
}
else
u = x;
rs[i++] = u < 0x100 ? C (u) : unrep_char_;
}
return r;
}
template <typename C>
XMLCh* char_iso8859_1_transcoder<C>::
from (const C* s, std::size_t len)
{
const C* end (s + len);
#ifdef XSD_CXX11
std::unique_ptr<XMLCh[]> r (
#else
auto_array<XMLCh> r (
#endif
new XMLCh[len + 1]);
XMLCh* ir (r.get ());
for (const C* p (s); p < end; ++p)
*ir++ = static_cast<unsigned char> (*p);
*ir = XMLCh (0);
return r.release ();
}
}
}
}
|