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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
//
// Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
// Copyright (c) 2021-2024 Alexander Grund
//
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include "formatters_cache.hpp"
#include <boost/assert.hpp>
#include <boost/core/ignore_unused.hpp>
#include <memory>
#include <type_traits>
#ifdef BOOST_MSVC
# pragma warning(push)
# pragma warning(disable : 4251) // "identifier" : class "type" needs to have dll-interface...
#endif
#include <unicode/datefmt.h>
#include <unicode/numfmt.h>
#include <unicode/rbnf.h>
#include <unicode/smpdtfmt.h>
#ifdef BOOST_MSVC
# pragma warning(pop)
#endif
namespace boost { namespace locale { namespace impl_icu {
std::locale::id formatters_cache::id;
namespace {
struct init {
init() { ignore_unused(std::has_facet<formatters_cache>(std::locale::classic())); }
} instance;
void get_icu_pattern(std::unique_ptr<icu::DateFormat> fmt, icu::UnicodeString& out_str)
{
icu::SimpleDateFormat* sfmt = icu_cast<icu::SimpleDateFormat>(fmt.get());
if(sfmt)
sfmt->toPattern(out_str);
else
out_str.remove(); // LCOV_EXCL_LINE
}
void get_icu_pattern(icu::DateFormat* fmt, icu::UnicodeString& out_str)
{
return get_icu_pattern(std::unique_ptr<icu::DateFormat>(fmt), out_str);
}
} // namespace
formatters_cache::formatters_cache(const icu::Locale& locale) : locale_(locale)
{
#define BOOST_LOCALE_ARRAY_SIZE(T) std::extent<typename std::remove_reference<decltype(T)>::type>::value
constexpr icu::DateFormat::EStyle styles[]{icu::DateFormat::kShort,
icu::DateFormat::kMedium,
icu::DateFormat::kLong,
icu::DateFormat::kFull};
constexpr int num_styles = BOOST_LOCALE_ARRAY_SIZE(styles);
static_assert(num_styles == BOOST_LOCALE_ARRAY_SIZE(date_format_), "!");
for(int i = 0; i < num_styles; i++)
get_icu_pattern(icu::DateFormat::createDateInstance(styles[i], locale), date_format_[i]);
static_assert(num_styles == BOOST_LOCALE_ARRAY_SIZE(time_format_), "!");
for(int i = 0; i < num_styles; i++)
get_icu_pattern(icu::DateFormat::createTimeInstance(styles[i], locale), time_format_[i]);
static_assert(num_styles == BOOST_LOCALE_ARRAY_SIZE(date_time_format_), "!");
static_assert(num_styles == BOOST_LOCALE_ARRAY_SIZE(date_time_format_[0]), "!");
for(int i = 0; i < num_styles; i++) {
for(int j = 0; j < num_styles; j++) {
get_icu_pattern(icu::DateFormat::createDateTimeInstance(styles[i], styles[j], locale),
date_time_format_[i][j]);
}
}
#undef BOOST_LOCALE_ARRAY_SIZE
const auto get_str_or = [](const icu::UnicodeString& str, const char* default_str) {
return str.isEmpty() ? default_str : str;
};
default_date_format_ = get_str_or(date_format(format_len::Medium), "yyyy-MM-dd");
default_time_format_ = get_str_or(time_format(format_len::Medium), "HH:mm:ss");
default_date_time_format_ =
get_str_or(date_time_format(format_len::Full, format_len::Full), "yyyy-MM-dd HH:mm:ss");
}
icu::NumberFormat* formatters_cache::create_number_format(num_fmt_type type, UErrorCode& err) const
{
switch(type) {
case num_fmt_type::number: return icu::NumberFormat::createInstance(locale_, err); break;
case num_fmt_type::sci: return icu::NumberFormat::createScientificInstance(locale_, err); break;
case num_fmt_type::curr_nat: return icu::NumberFormat::createInstance(locale_, UNUM_CURRENCY, err); break;
case num_fmt_type::curr_iso:
return icu::NumberFormat::createInstance(locale_, UNUM_CURRENCY_ISO, err);
break;
case num_fmt_type::percent: return icu::NumberFormat::createPercentInstance(locale_, err); break;
case num_fmt_type::spell: return new icu::RuleBasedNumberFormat(icu::URBNF_SPELLOUT, locale_, err); break;
case num_fmt_type::ordinal: return new icu::RuleBasedNumberFormat(icu::URBNF_ORDINAL, locale_, err); break;
}
throw std::logic_error("locale::internal error should not get there"); // LCOV_EXCL_LINE
}
icu::NumberFormat& formatters_cache::number_format(num_fmt_type type) const
{
icu::NumberFormat* result = number_format_[int(type)].get();
if(!result) {
UErrorCode err = U_ZERO_ERROR;
std::unique_ptr<icu::NumberFormat> new_ptr(create_number_format(type, err));
check_and_throw_icu_error(err, "Failed to create a formatter");
result = new_ptr.get();
BOOST_ASSERT(result);
number_format_[int(type)].reset(new_ptr.release());
}
return *result;
}
icu::SimpleDateFormat* formatters_cache::date_formatter() const
{
icu::SimpleDateFormat* result = date_formatter_.get();
if(!result) {
std::unique_ptr<icu::DateFormat> fmt(
icu::DateFormat::createDateTimeInstance(icu::DateFormat::kMedium, icu::DateFormat::kMedium, locale_));
result = icu_cast<icu::SimpleDateFormat>(fmt.get());
if(result) {
fmt.release();
date_formatter_.reset(result);
}
}
return result;
}
}}} // namespace boost::locale::impl_icu
|
