| Martin Stjernholm | 4fb5111 | 2021-04-30 11:53:52 +0100 | [diff] [blame] | 1 | // Formatting library for C++ - std::locale support |
| 2 | // |
| 3 | // Copyright (c) 2012 - present, Victor Zverovich |
| 4 | // All rights reserved. |
| 5 | // |
| 6 | // For the license information refer to format.h. |
| 7 | |
| 8 | #ifndef FMT_LOCALE_H_ |
| 9 | #define FMT_LOCALE_H_ |
| 10 | |
| 11 | #include <locale> |
| 12 | |
| 13 | #include "format.h" |
| 14 | |
| 15 | FMT_BEGIN_NAMESPACE |
| 16 | |
| 17 | namespace detail { |
| 18 | template <typename Char> |
| 19 | std::basic_string<Char> vformat( |
| 20 | const std::locale& loc, basic_string_view<Char> format_str, |
| 21 | basic_format_args<buffer_context<type_identity_t<Char>>> args) { |
| 22 | basic_memory_buffer<Char> buffer; |
| 23 | detail::vformat_to(buffer, format_str, args, detail::locale_ref(loc)); |
| 24 | return fmt::to_string(buffer); |
| 25 | } |
| 26 | } // namespace detail |
| 27 | |
| 28 | template <typename S, typename Char = char_t<S>> |
| 29 | inline std::basic_string<Char> vformat( |
| 30 | const std::locale& loc, const S& format_str, |
| 31 | basic_format_args<buffer_context<type_identity_t<Char>>> args) { |
| 32 | return detail::vformat(loc, to_string_view(format_str), args); |
| 33 | } |
| 34 | |
| 35 | template <typename S, typename... Args, typename Char = char_t<S>> |
| 36 | inline std::basic_string<Char> format(const std::locale& loc, |
| 37 | const S& format_str, Args&&... args) { |
| 38 | return detail::vformat(loc, to_string_view(format_str), |
| 39 | fmt::make_args_checked<Args...>(format_str, args...)); |
| 40 | } |
| 41 | |
| 42 | template <typename S, typename OutputIt, typename... Args, |
| 43 | typename Char = char_t<S>, |
| 44 | FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)> |
| 45 | inline OutputIt vformat_to( |
| 46 | OutputIt out, const std::locale& loc, const S& format_str, |
| 47 | basic_format_args<buffer_context<type_identity_t<Char>>> args) { |
| 48 | decltype(detail::get_buffer<Char>(out)) buf(detail::get_buffer_init(out)); |
| 49 | vformat_to(buf, to_string_view(format_str), args, detail::locale_ref(loc)); |
| 50 | return detail::get_iterator(buf); |
| 51 | } |
| 52 | |
| 53 | template <typename OutputIt, typename S, typename... Args, |
| 54 | bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value> |
| 55 | inline auto format_to(OutputIt out, const std::locale& loc, |
| 56 | const S& format_str, Args&&... args) -> |
| 57 | typename std::enable_if<enable, OutputIt>::type { |
| 58 | const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...); |
| 59 | return vformat_to(out, loc, to_string_view(format_str), vargs); |
| 60 | } |
| 61 | |
| 62 | FMT_END_NAMESPACE |
| 63 | |
| 64 | #endif // FMT_LOCALE_H_ |