package main

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

func isSure(quest string) bool {
    fmt.Printf("%s (type 'y/Y/yes' to confirm) : ",quest)
    in := bufio.NewReader(os.Stdin)
    line, err := in.ReadString('\n')
    line = strings.TrimSuffix(line, "\n")
    //line = strings.TrimSuffix(line, "\r\n") //for Windows
    checkErr(err)

    if ( line == "yes" || line == "y" || line == "Y") {
        return true
    } else {
        return false
    }
}

func checkErr(err error) {
    if err != nil {
        panic(err)
    }
}

func getInput(quest string) string {
    fmt.Print(quest)
    in := bufio.NewReader(os.Stdin)
    line, err := in.ReadString('\n')
    line = strings.TrimSuffix(line, "\n")
    //line = strings.TrimSuffix(line, "\r\n")//for windows
    checkErr(err)
    return line
}

func getNewInput(quest,old string) string {
    if old != "" {
        fmt.Println("Current:",old)
    }
    fmt.Print(quest)
    in := bufio.NewReader(os.Stdin)
    line, err := in.ReadString('\n')
    line = strings.TrimSuffix(line, "\n")
    //line = strings.TrimSuffix(line, "\r\n")//for windows
    checkErr(err)
    if line == "" {
        return old
    }else{
        return line
    }
}