blob: 1eecc7dc0123dfcb916274ed6aeb76d429ed8463 (
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
|
// file : xsde/cxx/parser/validating/time-zone.cxx
// author : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
#include <xsde/cxx/parser/validating/time-zone.hxx>
namespace xsde
{
namespace cxx
{
namespace parser
{
namespace validating
{
namespace bits
{
bool
parse_time_zone (const char* s, size_t n, short& h, short& m)
{
// time_zone := Z|(+|-)HH:MM
//
if (n == 0)
{
return false;
}
else if (s[0] == 'Z')
{
if (n != 1)
return false;
h = 0;
m = 0;
}
else
{
if (n != 6 || (s[0] != '-' && s[0] != '+') || s[3] != ':')
return false;
// Parse hours.
//
char d1 = s[1];
char d2 = s[2];
if (d1 < '0' || d1 > '9' || d2 < '0' || d2 > '9')
return false;
h = 10 * (d1 - '0') + (d2 - '0');
if (h > 14)
return false;
// Parse minutes.
//
d1 = s[4];
d2 = s[5];
if (d1 < '0' || d1 > '9' || d2 < '0' || d2 > '9')
return false;
m = 10 * (d1 - '0') + (d2 - '0');
if (m > 59 || (h == 14 && m != 0))
return false;
if (s[0] == '-')
{
h = -h;
m = -m;
}
}
return true;
}
}
}
}
}
}
|
