From 5068d34c08f951a7ea6257d305a1627b09a95817 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 4 May 2024 19:44:55 +0200 Subject: Adding upstream version 0.11.1. Signed-off-by: Daniel Baumann --- src/fmtlib/fmt/xchar.h | 232 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 232 insertions(+) create mode 100644 src/fmtlib/fmt/xchar.h (limited to 'src/fmtlib/fmt/xchar.h') 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 +#include + +#include "format.h" + +FMT_BEGIN_NAMESPACE +namespace detail { +template +using is_exotic_char = bool_constant::value>; +} + +FMT_MODULE_EXPORT_BEGIN + +using wstring_view = basic_string_view; +using wformat_parse_context = basic_format_parse_context; +using wformat_context = buffer_context; +using wformat_args = basic_format_args; +using wmemory_buffer = basic_memory_buffer; + +#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409 +// Workaround broken conversion on older gcc. +template using wformat_string = wstring_view; +#else +template +using wformat_string = basic_format_string...>; +#endif + +template <> struct is_char : std::true_type {}; +template <> struct is_char : std::true_type {}; +template <> struct is_char : std::true_type {}; +template <> struct is_char : std::true_type {}; + +template +constexpr format_arg_store 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 operator"" _a(const wchar_t* s, size_t) { + return {s}; +} +#endif +} // namespace literals + +template +auto join(It begin, Sentinel end, wstring_view sep) + -> join_view { + return {begin, end, sep}; +} + +template +auto join(Range&& range, wstring_view sep) + -> join_view, detail::sentinel_t, + wchar_t> { + return join(std::begin(range), std::end(range), sep); +} + +template +auto join(std::initializer_list list, wstring_view sep) + -> join_view { + return join(std::begin(list), std::end(list), sep); +} + +template ::value)> +auto vformat(basic_string_view format_str, + basic_format_args>> args) + -> std::basic_string { + basic_memory_buffer buffer; + detail::vformat_to(buffer, format_str, args); + return to_string(buffer); +} + +#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 409 +template +using wformat_string = basic_format_string...>; +#endif + +template +auto format(wformat_string 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> to reduce the symbol size. +template , + FMT_ENABLE_IF(!std::is_same::value)> +auto format(const S& format_str, Args&&... args) -> std::basic_string { + return vformat(detail::to_string_view(format_str), + fmt::make_format_args>(args...)); +} + +template , + FMT_ENABLE_IF(detail::is_locale::value&& + detail::is_exotic_char::value)> +inline auto vformat( + const Locale& loc, const S& format_str, + basic_format_args>> args) + -> std::basic_string { + return detail::vformat(loc, detail::to_string_view(format_str), args); +} + +template , + FMT_ENABLE_IF(detail::is_locale::value&& + detail::is_exotic_char::value)> +inline auto format(const Locale& loc, const S& format_str, Args&&... args) + -> std::basic_string { + return detail::vformat(loc, detail::to_string_view(format_str), + fmt::make_format_args>(args...)); +} + +template , + FMT_ENABLE_IF(detail::is_output_iterator::value&& + detail::is_exotic_char::value)> +auto vformat_to(OutputIt out, const S& format_str, + basic_format_args>> args) + -> OutputIt { + auto&& buf = detail::get_buffer(out); + detail::vformat_to(buf, detail::to_string_view(format_str), args); + return detail::get_iterator(buf); +} + +template , + FMT_ENABLE_IF(detail::is_output_iterator::value&& + detail::is_exotic_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>(args...)); +} + +template , + FMT_ENABLE_IF(detail::is_output_iterator::value&& + detail::is_locale::value&& + detail::is_exotic_char::value)> +inline auto vformat_to( + OutputIt out, const Locale& loc, const S& format_str, + basic_format_args>> args) -> OutputIt { + auto&& buf = detail::get_buffer(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, + bool enable = detail::is_output_iterator::value&& + detail::is_locale::value&& detail::is_exotic_char::value> +inline auto format_to(OutputIt out, const Locale& loc, const S& format_str, + Args&&... args) -> + typename std::enable_if::type { + return vformat_to(out, loc, to_string_view(format_str), + fmt::make_format_args>(args...)); +} + +template ::value&& + detail::is_exotic_char::value)> +inline auto vformat_to_n( + OutputIt out, size_t n, basic_string_view format_str, + basic_format_args>> args) + -> format_to_n_result { + detail::iterator_buffer buf(out, + n); + detail::vformat_to(buf, format_str, args); + return {buf.out(), buf.count()}; +} + +template , + FMT_ENABLE_IF(detail::is_output_iterator::value&& + detail::is_exotic_char::value)> +inline auto format_to_n(OutputIt out, size_t n, const S& fmt, + const Args&... args) -> format_to_n_result { + return vformat_to_n(out, n, detail::to_string_view(fmt), + fmt::make_format_args>(args...)); +} + +template , + FMT_ENABLE_IF(detail::is_exotic_char::value)> +inline auto formatted_size(const S& fmt, Args&&... args) -> size_t { + detail::counting_buffer buf; + detail::vformat_to(buf, detail::to_string_view(fmt), + fmt::make_format_args>(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 +void print(std::FILE* f, wformat_string fmt, T&&... args) { + return vprint(f, wstring_view(fmt), fmt::make_wformat_args(args...)); +} + +template void print(wformat_string 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 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_ -- cgit v1.2.3