How Can I Read Keystrokes Directly into a Channel Without a Newline in Go?

Input Keystrokes Directly to Channel without Newline

In Go, standard input (stdin) is line-buffered by default. This implies that keystrokes are not immediately sent to a channel; instead, they are held until a newline character is inputted. To overcome this limitation, here's how you can read keystrokes and send them to a channel without the need for a newline:

<code class="go">func chars() <-chan byte {
    ch := make(chan byte)
    reader := bufio.NewReader(os.Stdin)
    go func() {
        for {
            char, err := reader.ReadByte()
            if err != nil {
                log.Fatal(err)
            }
            ch <- char
        }
    }()
    return ch
}</code>

However, stdin line buffering is not specific to Go but rather a platform-wide default. For non-buffered input, platform-specific solutions are required. One option is to use the ncurses or go-termbox packages. Alternatively, you can implement manual input handling with termios or Go syscalls (for Linux). Windows implementation requires exploration of ncurses or termbox source code.

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