kstd: move println to kstd

1 files changed, 86 insertions, 0 deletions

diff --git a/libs/kstd/include/kstd/print b/libs/kstd/include/kstd/print
new file mode 100644
index 0000000..df42997
--- /dev/null
+++ b/libs/kstd/include/kstd/print
@@ -0,0 +1,86 @@
+#ifndef KSTD_PRINT
+#define KSTD_PRINT
+
+#include <kstd/format>
+
+#include <array>
+#include <string_view>
+#include <type_traits>
+
+namespace kstd
+{
+
+  enum struct print_sink
+  {
+    stdout,
+    stderr,
+  };
+
+  namespace os
+  {
+    auto vprint(print_sink sink, std::string_view format, kstd::format_args args) -> void;
+  }  // namespace os
+
+  //! @qualifier kernel-defined
+  //! Format the given string using the given arguments and print it to the currently active output device.
+  //!
+  //! @param format The format string
+  //! @param args The arguments to use to place in the format string's placeholders.
+  template<typename... Args>
+  // NOLINTNEXTLINE(cppcoreguidelines-missing-std-forward)
+  auto print(kstd::format_string<std::type_identity_t<Args>...> format, Args &&... args) -> void
+  {
+    auto arguments = std::array<kstd::format_arg, sizeof...(Args)>{
+      kstd::format_arg{&args, kstd::format_dispatcher<std::remove_cvref_t<Args>>}
+      ...
+    };
+    os::vprint(print_sink::stdout, format.str, kstd::format_args{arguments.data(), sizeof...(Args)});
+  }
+
+  //! @qualifier kernel-defined
+  //! Format the given error string using the given arguments and print it to the currently active output device.
+  //!
+  //! @param format The format string
+  //! @param args The arguments to use to place in the format string's placeholders.
+  template<typename... Args>
+  // NOLINTNEXTLINE(cppcoreguidelines-missing-std-forward)
+  auto print(print_sink sink, kstd::format_string<std::type_identity_t<Args>...> format, Args &&... args) -> void
+  {
+    auto arguments = std::array<kstd::format_arg, sizeof...(Args)>{
+      kstd::format_arg{&args, kstd::format_dispatcher<std::remove_cvref_t<Args>>}
+      ...
+    };
+    os::vprint(sink, format.str, kstd::format_args{arguments.data(), sizeof...(Args)});
+  }
+
+  //! @qualifier kernel-defined
+  //! Format the given string using the given arguments and print it, including a newline, to the currently active
+  //! output device.
+  //!
+  //! @param format The format string
+  //! @param args The arguments to use to place in the format string's placeholders.
+  template<typename... Args>
+  // NOLINTNEXTLINE(cppcoreguidelines-missing-std-forward)
+  auto println(kstd::format_string<std::type_identity_t<Args>...> format, Args &&... args) -> void
+  {
+    print(format, std::forward<Args>(args)...);
+    print(print_sink::stdout, "\n");
+  }
+
+  //! @qualifier kernel-defined
+  //! Format the given error string using the given arguments and print it, including a newline, to the currently active
+  //! output device.
+  //!
+  //! @param format The format string
+  //! @param args The arguments
+  template<typename... Args>
+  // NOLINTNEXTLINE(cppcoreguidelines-missing-std-forward)
+  auto println(print_sink sink, kstd::format_string<std::type_identity_t<Args>...> format, Args &&... args) -> void
+  {
+    print(sink, format, std::forward<Args>(args)...);
+    print(sink, "\n");
+  }
+
+}  // namespace kstd
+
+#endif
\ No newline at end of file