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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 17:44:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 17:44:55 +0000
commit5068d34c08f951a7ea6257d305a1627b09a95817 (patch)
tree08213e2be853396a3b07ce15dbe222644dcd9a89 /src/fmtlib/fmt/std.h
parentInitial commit. (diff)
downloadlnav-upstream.tar.xz
lnav-upstream.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/std.h176
1 files changed, 176 insertions, 0 deletions
diff --git a/src/fmtlib/fmt/std.h b/src/fmtlib/fmt/std.h
new file mode 100644
index 0000000..227f484
--- /dev/null
+++ b/src/fmtlib/fmt/std.h
@@ -0,0 +1,176 @@
+// Formatting library for C++ - formatters for standard library types
+//
+// Copyright (c) 2012 - present, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_STD_H_
+#define FMT_STD_H_
+
+#include <thread>
+#include <type_traits>
+#include <utility>
+
+#include "ostream.h"
+
+#if FMT_HAS_INCLUDE(<version>)
+# include <version>
+#endif
+// Checking FMT_CPLUSPLUS for warning suppression in MSVC.
+#if FMT_CPLUSPLUS >= 201703L
+# if FMT_HAS_INCLUDE(<filesystem>)
+# include <filesystem>
+# endif
+# if FMT_HAS_INCLUDE(<variant>)
+# include <variant>
+# endif
+#endif
+
+#ifdef __cpp_lib_filesystem
+FMT_BEGIN_NAMESPACE
+
+namespace detail {
+
+template <typename Char>
+void write_escaped_path(basic_memory_buffer<Char>& quoted,
+ const std::filesystem::path& p) {
+ write_escaped_string<Char>(std::back_inserter(quoted), p.string<Char>());
+}
+# ifdef _WIN32
+template <>
+inline void write_escaped_path<char>(basic_memory_buffer<char>& quoted,
+ const std::filesystem::path& p) {
+ auto s = p.u8string();
+ write_escaped_string<char>(
+ std::back_inserter(quoted),
+ string_view(reinterpret_cast<const char*>(s.c_str()), s.size()));
+}
+# endif
+template <>
+inline void write_escaped_path<std::filesystem::path::value_type>(
+ basic_memory_buffer<std::filesystem::path::value_type>& quoted,
+ const std::filesystem::path& p) {
+ write_escaped_string<std::filesystem::path::value_type>(
+ std::back_inserter(quoted), p.native());
+}
+
+} // namespace detail
+
+#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1920
+// For MSVC 2017 and earlier using the partial specialization
+// would cause an ambiguity error, therefore we provide it only
+// conditionally.
+template <typename Char>
+struct formatter<std::filesystem::path, Char>
+ : formatter<basic_string_view<Char>> {
+ template <typename FormatContext>
+ auto format(const std::filesystem::path& p, FormatContext& ctx) const ->
+ typename FormatContext::iterator {
+ basic_memory_buffer<Char> quoted;
+ detail::write_escaped_path(quoted, p);
+ return formatter<basic_string_view<Char>>::format(
+ basic_string_view<Char>(quoted.data(), quoted.size()), ctx);
+ }
+};
+#endif
+FMT_END_NAMESPACE
+#endif
+
+FMT_BEGIN_NAMESPACE
+template <typename Char>
+struct formatter<std::thread::id, Char> : basic_ostream_formatter<Char> {};
+FMT_END_NAMESPACE
+
+#ifdef __cpp_lib_variant
+FMT_BEGIN_NAMESPACE
+template <typename Char> struct formatter<std::monostate, Char> {
+ template <typename ParseContext>
+ FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
+ return ctx.begin();
+ }
+
+ template <typename FormatContext>
+ auto format(const std::monostate&, FormatContext& ctx) const
+ -> decltype(ctx.out()) {
+ auto out = ctx.out();
+ out = detail::write<Char>(out, "monostate");
+ return out;
+ }
+};
+
+namespace detail {
+
+template <typename T>
+using variant_index_sequence =
+ std::make_index_sequence<std::variant_size<T>::value>;
+
+// variant_size and variant_alternative check.
+template <typename T, typename U = void>
+struct is_variant_like_ : std::false_type {};
+template <typename T>
+struct is_variant_like_<T, std::void_t<decltype(std::variant_size<T>::value)>>
+ : std::true_type {};
+
+// formattable element check
+template <typename T, typename C> class is_variant_formattable_ {
+ template <std::size_t... I>
+ static std::conjunction<
+ is_formattable<std::variant_alternative_t<I, T>, C>...>
+ check(std::index_sequence<I...>);
+
+ public:
+ static constexpr const bool value =
+ decltype(check(variant_index_sequence<T>{}))::value;
+};
+
+template <typename Char, typename OutputIt, typename T>
+auto write_variant_alternative(OutputIt out, const T& v) -> OutputIt {
+ if constexpr (is_string<T>::value)
+ return write_escaped_string<Char>(out, detail::to_string_view(v));
+ else if constexpr (std::is_same_v<T, Char>)
+ return write_escaped_char(out, v);
+ else
+ return write<Char>(out, v);
+}
+
+} // namespace detail
+
+template <typename T> struct is_variant_like {
+ static constexpr const bool value = detail::is_variant_like_<T>::value;
+};
+
+template <typename T, typename C> struct is_variant_formattable {
+ static constexpr const bool value =
+ detail::is_variant_formattable_<T, C>::value;
+};
+
+template <typename Variant, typename Char>
+struct formatter<
+ Variant, Char,
+ std::enable_if_t<std::conjunction_v<
+ is_variant_like<Variant>, is_variant_formattable<Variant, Char>>>> {
+ template <typename ParseContext>
+ FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
+ return ctx.begin();
+ }
+
+ template <typename FormatContext>
+ auto format(const Variant& value, FormatContext& ctx) const
+ -> decltype(ctx.out()) {
+ auto out = ctx.out();
+
+ out = detail::write<Char>(out, "variant(");
+ std::visit(
+ [&](const auto& v) {
+ out = detail::write_variant_alternative<Char>(out, v);
+ },
+ value);
+ *out++ = ')';
+ return out;
+ }
+};
+FMT_END_NAMESPACE
+#endif
+
+#endif // FMT_STD_H_