A basic prompt function in go

prompt.go

package main

import (
	"fmt"
	"os"
)

// prompt prompts the user for input, printing p to stdout and reading from
// stdin until a newline is read. If no value is read from stdin before a
// newline is found d is returned.
func prompt(p string, d string) string {
	fmt.Fprintf(os.Stdout, "%s: ", p)
	var input string
	fmt.Fscanln(os.Stdin, &input)
	if len(input) == 0 {
		input = d
	}
	return input
}

func main() {
	input := prompt("Please provied some input", "default value")
	fmt.Println(input)
}