How Can I Replicate C's `getchar()` Functionality in Go, Including Tab Press Detection?

Go Function Similar to C's Getchar

In C programming, getchar() is a commonly used function for reading a single character from the console. However, when working with Go, a similar function is required to handle various use cases, including tab press detection.

Go Equivalent of getchar()

To achieve similar functionality in Go as getchar() in C, the following code can be used:

package main

import (
    "bufio"
    "fmt"
    "os"
)

func main() {

    reader := bufio.NewReader(os.Stdin)
    input, _ := reader.ReadString('\n')

    fmt.Printf("Input Char Is : %v", string([]byte(input)[0]))

}

This code reads a single character from the console using bufio.NewReader and stores it in the variable input. The first element of the input byte array represents the character pressed.

Handling Tab Press

For detecting a tab press specifically, getchar() is not suitable as it requires pressing the enter key. Instead, consider using libraries or implementing your own functions to capture a single keystroke, such as:

• Using ncurses or readline bindings
• Creating a custom function (see a starting point at http://play.golang.org/p/plwBIIYiqG)
• Executing commands like stty or jLine using os.Exec

Additional Notes

It's important to remember that these solutions may vary in their implementation and support for handling tab press. Refer to the resources provided in the references for further information:

• https://groups.google.com/forum/?fromgroups=#!topic/golang-nuts/zhBE5MH4n-Q
• https://groups.google.com/forum/?fromgroups=#!topic/golang-nuts/S9AO_kHktiY
• https://groups.google.com/forum/?fromgroups=#!topic/golang-nuts/icMfYF8wJCk

The above is the detailed content of How Can I Replicate C's `getchar()` Functionality in Go, Including Tab Press Detection?. For more information, please follow other related articles on the PHP Chinese website!