From d05b9343f69a0841043963088e0003368e205bd9 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@gmail.com>
Date: Tue, 22 Sep 2026 22:47:33 +0200
Subject: lib: restructure into vertical slices

---
 ttwhy/io/scoped_attributes.cppm | 135 ----------------------------------------
 1 file changed, 135 deletions(-)
 delete mode 100644 ttwhy/io/scoped_attributes.cppm

(limited to 'ttwhy/io/scoped_attributes.cppm')

diff --git a/ttwhy/io/scoped_attributes.cppm b/ttwhy/io/scoped_attributes.cppm
deleted file mode 100644
index 5e42e39..0000000
--- a/ttwhy/io/scoped_attributes.cppm
+++ /dev/null
@@ -1,135 +0,0 @@
-module;
-
-#include <termios.h>
-#include <unistd.h>
-
-#include <cerrno>
-#include <system_error>
-#include <utility>
-
-export module ttwhy.io:scoped_attributes;
-
-namespace ttwhy::io
-{
-
-  auto static read_attributes(int file_descriptor) -> termios
-  {
-    auto active_attributes = termios{};
-    if (::tcgetattr(file_descriptor, &active_attributes))
-    {
-      throw std::system_error(errno, std::system_category(), "failed to read termios attributes");
-    }
-    return active_attributes;
-  }
-
-  auto static get_line_discipline_flag(int file_descriptor, int flag) -> bool
-  {
-    auto active_attributes = read_attributes(file_descriptor);
-    return active_attributes.c_lflag & flag;
-  }
-
-  auto static set_line_discipline_flag(int file_descriptor, int flag, bool enabled) -> void
-  {
-    auto active_attributes = read_attributes(file_descriptor);
-
-    if ((active_attributes.c_lflag & flag) == enabled)
-    {
-      return;
-    }
-
-    if (enabled)
-    {
-      active_attributes.c_lflag = active_attributes.c_lflag | flag;
-    }
-    else
-    {
-      active_attributes.c_lflag = active_attributes.c_lflag & ~flag;
-    }
-
-    if (::tcsetattr(file_descriptor, TCSANOW, &active_attributes))
-    {
-      throw std::system_error(errno, std::system_category(), "failed to write termios attributes");
-    }
-  }
-
-  //! Store the current TC attributes and restore them on destruction.
-  export struct scoped_attributes
-  {
-    explicit scoped_attributes(int file_descriptor)
-        : m_file_descriptor{-1}
-        , m_attributes{}
-    {
-      if (isatty(file_descriptor))
-      {
-        m_file_descriptor = dup(file_descriptor);
-        m_attributes = read_attributes(m_file_descriptor);
-      }
-    }
-
-    scoped_attributes(scoped_attributes const &) = delete;
-
-    scoped_attributes(scoped_attributes && other)
-        : m_file_descriptor{std::exchange(other.m_file_descriptor, -1)}
-        , m_attributes{std::move(other.m_attributes)}
-    {}
-
-    ~scoped_attributes()
-    {
-      if (m_file_descriptor > 0)
-      {
-        ::tcsetattr(m_file_descriptor, TCSANOW, &m_attributes);
-        ::close(m_file_descriptor);
-      }
-    }
-
-    auto operator=(scoped_attributes const &) -> scoped_attributes & = delete;
-
-    auto operator=(scoped_attributes && other) -> scoped_attributes &
-    {
-      std::ranges::swap(m_file_descriptor, other.m_file_descriptor);
-      std::ranges::swap(m_attributes, other.m_attributes);
-      return *this;
-    }
-
-    //! Check if canonical mode is currently active
-    [[nodiscard]] auto canonical_mode() const noexcept -> bool
-    {
-      return get_line_discipline_flag(m_file_descriptor, ICANON);
-    }
-
-    //! Set whether canonical mode is active or not.
-    auto canonical_mode(bool enabled) & -> scoped_attributes &
-    {
-      set_line_discipline_flag(m_file_descriptor, ICANON, enabled);
-      return *this;
-    }
-
-    auto canonical_mode(bool enabled) && -> scoped_attributes
-    {
-      set_line_discipline_flag(m_file_descriptor, ICANON, enabled);
-      return std::move(*this);
-    }
-
-    [[nodiscard]] auto echo() const noexcept -> bool
-    {
-      return get_line_discipline_flag(m_file_descriptor, ECHO);
-    }
-
-    auto echo(bool enabled) & -> scoped_attributes &
-    {
-      set_line_discipline_flag(m_file_descriptor, ECHO, enabled);
-      return *this;
-    }
-
-    auto echo(bool enabled) && -> scoped_attributes
-    {
-      set_line_discipline_flag(m_file_descriptor, ECHO, enabled);
-      return std::move(*this);
-    }
-
-  private:
-    int m_file_descriptor;
-    termios m_attributes;
-  };
-
-}  // namespace ttwhy::io
-- 
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