diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 17:44:55 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 17:44:55 +0000 |
commit | 5068d34c08f951a7ea6257d305a1627b09a95817 (patch) | |
tree | 08213e2be853396a3b07ce15dbe222644dcd9a89 /src/fmtlib/fmt/xchar.h | |
parent | Initial commit. (diff) | |
download | lnav-5068d34c08f951a7ea6257d305a1627b09a95817.tar.xz lnav-5068d34c08f951a7ea6257d305a1627b09a95817.zip |
Adding upstream version 0.11.1.upstream/0.11.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/fmtlib/fmt/xchar.h | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/src/fmtlib/fmt/xchar.h b/src/fmtlib/fmt/xchar.h new file mode 100644 index 0000000..2865b76 --- /dev/null +++ b/src/fmtlib/fmt/xchar.h @@ -0,0 +1,232 @@ +// Formatting library for C++ - optional wchar_t and exotic character support +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_XCHAR_H_ +#define FMT_XCHAR_H_ + +#include <cwchar> +#include <tuple> + +#include "format.h" + +FMT_BEGIN_NAMESPACE +namespace detail { +template <typename T> +using is_exotic_char = bool_constant<!std::is_same<T, char>::value>; +} + +FMT_MODULE_EXPORT_BEGIN + +using wstring_view = basic_string_view<wchar_t>; +using wformat_parse_context = basic_format_parse_context<wchar_t>; +using wformat_context = buffer_context<wchar_t>; +using wformat_args = basic_format_args<wformat_context>; +using wmemory_buffer = basic_memory_buffer<wchar_t>; + +#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409 +// Workaround broken conversion on older gcc. +template <typename... Args> using wformat_string = wstring_view; +#else +template <typename... Args> +using wformat_string = basic_format_string<wchar_t, type_identity_t<Args>...>; +#endif + +template <> struct is_char<wchar_t> : std::true_type {}; +template <> struct is_char<detail::char8_type> : std::true_type {}; +template <> struct is_char<char16_t> : std::true_type {}; +template <> struct is_char<char32_t> : std::true_type {}; + +template <typename... Args> +constexpr format_arg_store<wformat_context, Args...> make_wformat_args( + const Args&... args) { + return {args...}; +} + +inline namespace literals { +#if FMT_USE_USER_DEFINED_LITERALS && !FMT_USE_NONTYPE_TEMPLATE_ARGS +constexpr detail::udl_arg<wchar_t> operator"" _a(const wchar_t* s, size_t) { + return {s}; +} +#endif +} // namespace literals + +template <typename It, typename Sentinel> +auto join(It begin, Sentinel end, wstring_view sep) + -> join_view<It, Sentinel, wchar_t> { + return {begin, end, sep}; +} + +template <typename Range> +auto join(Range&& range, wstring_view sep) + -> join_view<detail::iterator_t<Range>, detail::sentinel_t<Range>, + wchar_t> { + return join(std::begin(range), std::end(range), sep); +} + +template <typename T> +auto join(std::initializer_list<T> list, wstring_view sep) + -> join_view<const T*, const T*, wchar_t> { + return join(std::begin(list), std::end(list), sep); +} + +template <typename Char, FMT_ENABLE_IF(!std::is_same<Char, char>::value)> +auto vformat(basic_string_view<Char> format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) + -> std::basic_string<Char> { + basic_memory_buffer<Char> buffer; + detail::vformat_to(buffer, format_str, args); + return to_string(buffer); +} + +#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 409 +template <typename... Args> +using wformat_string = basic_format_string<wchar_t, type_identity_t<Args>...>; +#endif + +template <typename... T> +auto format(wformat_string<T...> fmt, T&&... args) -> std::wstring { + return vformat(fmt, fmt::make_wformat_args(args...)); +} + +// Pass char_t as a default template parameter instead of using +// std::basic_string<char_t<S>> to reduce the symbol size. +template <typename S, typename... Args, typename Char = char_t<S>, + FMT_ENABLE_IF(!std::is_same<Char, char>::value)> +auto format(const S& format_str, Args&&... args) -> std::basic_string<Char> { + return vformat(detail::to_string_view(format_str), + fmt::make_format_args<buffer_context<Char>>(args...)); +} + +template <typename Locale, typename S, typename Char = char_t<S>, + FMT_ENABLE_IF(detail::is_locale<Locale>::value&& + detail::is_exotic_char<Char>::value)> +inline auto vformat( + const Locale& loc, const S& format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) + -> std::basic_string<Char> { + return detail::vformat(loc, detail::to_string_view(format_str), args); +} + +template <typename Locale, typename S, typename... Args, + typename Char = char_t<S>, + FMT_ENABLE_IF(detail::is_locale<Locale>::value&& + detail::is_exotic_char<Char>::value)> +inline auto format(const Locale& loc, const S& format_str, Args&&... args) + -> std::basic_string<Char> { + return detail::vformat(loc, detail::to_string_view(format_str), + fmt::make_format_args<buffer_context<Char>>(args...)); +} + +template <typename OutputIt, typename S, typename Char = char_t<S>, + FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&& + detail::is_exotic_char<Char>::value)> +auto vformat_to(OutputIt out, const S& format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) + -> OutputIt { + auto&& buf = detail::get_buffer<Char>(out); + detail::vformat_to(buf, detail::to_string_view(format_str), args); + return detail::get_iterator(buf); +} + +template <typename OutputIt, typename S, typename... Args, + typename Char = char_t<S>, + FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&& + detail::is_exotic_char<Char>::value)> +inline auto format_to(OutputIt out, const S& fmt, Args&&... args) -> OutputIt { + return vformat_to(out, detail::to_string_view(fmt), + fmt::make_format_args<buffer_context<Char>>(args...)); +} + +template <typename Locale, typename S, typename OutputIt, typename... Args, + typename Char = char_t<S>, + FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&& + detail::is_locale<Locale>::value&& + detail::is_exotic_char<Char>::value)> +inline auto vformat_to( + OutputIt out, const Locale& loc, const S& format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) -> OutputIt { + auto&& buf = detail::get_buffer<Char>(out); + vformat_to(buf, detail::to_string_view(format_str), args, + detail::locale_ref(loc)); + return detail::get_iterator(buf); +} + +template < + typename OutputIt, typename Locale, typename S, typename... Args, + typename Char = char_t<S>, + bool enable = detail::is_output_iterator<OutputIt, Char>::value&& + detail::is_locale<Locale>::value&& detail::is_exotic_char<Char>::value> +inline auto format_to(OutputIt out, const Locale& loc, const S& format_str, + Args&&... args) -> + typename std::enable_if<enable, OutputIt>::type { + return vformat_to(out, loc, to_string_view(format_str), + fmt::make_format_args<buffer_context<Char>>(args...)); +} + +template <typename OutputIt, typename Char, typename... Args, + FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&& + detail::is_exotic_char<Char>::value)> +inline auto vformat_to_n( + OutputIt out, size_t n, basic_string_view<Char> format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) + -> format_to_n_result<OutputIt> { + detail::iterator_buffer<OutputIt, Char, detail::fixed_buffer_traits> buf(out, + n); + detail::vformat_to(buf, format_str, args); + return {buf.out(), buf.count()}; +} + +template <typename OutputIt, typename S, typename... Args, + typename Char = char_t<S>, + FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&& + detail::is_exotic_char<Char>::value)> +inline auto format_to_n(OutputIt out, size_t n, const S& fmt, + const Args&... args) -> format_to_n_result<OutputIt> { + return vformat_to_n(out, n, detail::to_string_view(fmt), + fmt::make_format_args<buffer_context<Char>>(args...)); +} + +template <typename S, typename... Args, typename Char = char_t<S>, + FMT_ENABLE_IF(detail::is_exotic_char<Char>::value)> +inline auto formatted_size(const S& fmt, Args&&... args) -> size_t { + detail::counting_buffer<Char> buf; + detail::vformat_to(buf, detail::to_string_view(fmt), + fmt::make_format_args<buffer_context<Char>>(args...)); + return buf.count(); +} + +inline void vprint(std::FILE* f, wstring_view fmt, wformat_args args) { + wmemory_buffer buffer; + detail::vformat_to(buffer, fmt, args); + buffer.push_back(L'\0'); + if (std::fputws(buffer.data(), f) == -1) + FMT_THROW(system_error(errno, FMT_STRING("cannot write to file"))); +} + +inline void vprint(wstring_view fmt, wformat_args args) { + vprint(stdout, fmt, args); +} + +template <typename... T> +void print(std::FILE* f, wformat_string<T...> fmt, T&&... args) { + return vprint(f, wstring_view(fmt), fmt::make_wformat_args(args...)); +} + +template <typename... T> void print(wformat_string<T...> fmt, T&&... args) { + return vprint(wstring_view(fmt), fmt::make_wformat_args(args...)); +} + +/** + Converts *value* to ``std::wstring`` using the default format for type *T*. + */ +template <typename T> inline auto to_wstring(const T& value) -> std::wstring { + return format(FMT_STRING(L"{}"), value); +} +FMT_MODULE_EXPORT_END +FMT_END_NAMESPACE + +#endif // FMT_XCHAR_H_ |