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
|
#pragma once
#include <chrono>
#if HAVE_CHRONO_TIMEZONES
#include <format>
#else
#include <date/tz.h>
#include <fmt/format.h>
#include <regex>
#endif
// Date
namespace date {
#if HAVE_CHRONO_TIMEZONES
using namespace std::chrono;
using std::format;
#else
using system_clock = std::chrono::system_clock;
using seconds = std::chrono::seconds;
template <typename T>
inline auto format(const char* spec, const T& arg) {
return date::format(std::regex_replace(spec, std::regex("\\{:L|\\}"), ""), arg);
}
template <typename T>
inline auto format(const std::locale& loc, const char* spec, const T& arg) {
return date::format(loc, std::regex_replace(spec, std::regex("\\{:L|\\}"), ""), arg);
}
#endif
} // namespace date
// Format
namespace waybar::util::date::format {
#if HAVE_CHRONO_TIMEZONES
using namespace std;
#else
using namespace fmt;
#endif
} // namespace waybar::util::date::format
#if not HAVE_CHRONO_TIMEZONES
template <typename Duration, typename TimeZonePtr>
struct fmt::formatter<date::zoned_time<Duration, TimeZonePtr>> {
std::string_view specs;
template <typename ParseContext>
constexpr auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
auto it = ctx.begin();
if (it != ctx.end() && *it == ':') {
++it;
}
auto end = it;
while (end != ctx.end() && *end != '}') {
++end;
}
if (end != it) {
specs = {it, std::string_view::size_type(end - it)};
}
return end;
}
template <typename FormatContext>
auto format(const date::zoned_time<Duration, TimeZonePtr>& ztime, FormatContext& ctx) const {
if (ctx.locale()) {
const auto loc = ctx.locale().template get<std::locale>();
return fmt::format_to(ctx.out(), "{}", date::format(loc, fmt::to_string(specs), ztime));
}
return fmt::format_to(ctx.out(), "{}", date::format(fmt::to_string(specs), ztime));
}
};
#endif
|
