blob: 617f40a9772db9cc12f4e94a313bb8d4a70259de (
plain) (
blame)
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
|
//
// Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
//
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#ifndef BOOST_LOCALE_IMPL_UTIL_TIMEZONE_HPP
#define BOOST_LOCALE_IMPL_UTIL_TIMEZONE_HPP
#include <boost/locale/util/string.hpp>
#include <cstdlib>
#include <cstring>
#include <string>
namespace boost { namespace locale { namespace util {
inline int parse_tz(const std::string& tz)
{
std::string ltz;
for(const char c : tz) {
if(is_lower_ascii(c))
ltz += c - 'a' + 'A';
else if(c != ' ')
ltz += c;
}
if(ltz.compare(0, 3, "GMT") != 0 && ltz.compare(0, 3, "UTC") != 0)
return 0;
if(ltz.size() <= 3)
return 0;
int gmtoff = 0;
const char* begin = ltz.c_str() + 3;
char* end = const_cast<char*>(begin);
int hours = strtol(begin, &end, 10);
if(end != begin)
gmtoff += hours * 3600;
if(*end == ':') {
begin = end + 1;
int minutes = strtol(begin, &end, 10);
if(end != begin)
gmtoff += minutes * 60;
}
return gmtoff;
}
}}} // namespace boost::locale::util
#endif
|
