blob: 74cf7705dc882d40e859742aedcc271247b89823 (
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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
//
// Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
//
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/locale/util.hpp>
#include <boost/locale/util/string.hpp>
#include <algorithm>
#if BOOST_LOCALE_USE_WIN32_API
# ifndef NOMINMAX
# define NOMINMAX
# endif
# include <windows.h>
#endif
#if BOOST_LOCALE_USE_WIN32_API
// Get information about the user default locale and put it into the buffer.
// Return true on success
template<size_t N>
static bool get_user_default_locale_info(LCTYPE lcType, char (&buf)[N])
{
return GetLocaleInfoA(LOCALE_USER_DEFAULT, lcType, buf, N) != 0;
}
#endif
namespace boost { namespace locale { namespace util {
std::string get_system_locale(bool use_utf8_on_windows)
{
const char* lang = nullptr;
if(!lang || !*lang)
lang = getenv("LC_ALL");
if(!lang || !*lang)
lang = getenv("LC_CTYPE");
if(!lang || !*lang)
lang = getenv("LANG");
#if !BOOST_LOCALE_USE_WIN32_API
(void)use_utf8_on_windows; // not relevant for non-windows
if(!lang || !*lang)
lang = "C";
return lang;
#else
if(lang && *lang)
return lang;
char buf[10]{};
if(!get_user_default_locale_info(LOCALE_SISO639LANGNAME, buf))
return "C";
std::string lc_name = buf;
if(get_user_default_locale_info(LOCALE_SISO3166CTRYNAME, buf)) {
lc_name += "_";
lc_name += buf;
}
if(use_utf8_on_windows || !get_user_default_locale_info(LOCALE_IDEFAULTANSICODEPAGE, buf))
lc_name += ".UTF-8";
else {
if(std::find_if_not(buf, str_end(buf), is_numeric_ascii) != str_end(buf))
lc_name += ".UTF-8";
else
lc_name.append(".windows-").append(buf);
}
return lc_name;
#endif
}
}}} // namespace boost::locale::util
|
