How to Stream Keystrokes to a Channel without a Newline Requirement?

Input Keystroke Streaming to a Channel without Newline Requirement

Keystrokes entered into standard input (stdin) are typically buffered, meaning they are only sent to a channel when a newline character is entered. However, in certain situations, it may be desirable to send each keystroke directly to the channel without waiting for a newline.

Initial Approach and its Drawback

The initial code provided in the question, intended to send keystrokes to a channel, utilized the bufio.NewReader(os.Stdin) reader with reader.ReadByte(). This method blocks until a newline character is entered, not providing the desired result of immediate keystroke transmission.

Understanding Buffered Input

Stdin is typically line-buffered by default. This means input is not immediately available to the program until a newline is entered. This behavior is not unique to Go but is a platform-specific setting.

Alternative Solutions

• Ncurses: Ncurses is a library that provides platform-independent terminal handling capabilities. It can be used to configure stdin to behave in a non-buffered manner.
• Go-Termbox: Go-Termbox is a lightweight package that also enables non-buffered stdin input handling.
• Low-Level Programming: Writing C bindings for termios or using Go syscalls directly can allow for manual control of stdin buffering, but this approach is highly platform-specific and may require specialized knowledge.
• Platform-Specific Considerations: Windows handling of buffered stdin may differ from other platforms. Refer to the source code of ncurses or termbox for platform-specific implementations.

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