melrōse musical expression player

package notify import ( "fmt" "io" "strings" ) var ansiColorsEnabled = true func SetANSIColorsEnabled(enabled bool) { ansiColorsEnabled = enabled } func PrintWelcome(version string) { tail := " - program your melodies - " + version + " (help = :h, quit = :q or ctrl+c)" if ansiColorsEnabled { fmt.Println("\033[1;34mmelrōse\033[0m" + tail) } else { fmt.Fprint(Console.StandardOut, "melrose"+tail+"\n") } } func PrintBye() { if ansiColorsEnabled { fmt.Println("\033[1;34mmelrōse\033[0m" + " sings bye!") } else { fmt.Fprint(Console.StandardOut, "melrōse sings bye!\n") } } func Prompt() string { if ansiColorsEnabled { return "𝄞 " } return "# " } func PrintHighlighted(what string) { if ansiColorsEnabled { fmt.Println("\033[1;33m" + what + "\033[0m") } else { fmt.Println(what) } } func Print(m Message) { if m == nil { return } switch m.Type() { case NotifyInfo: printInfo(m.Message()) case NotifyWarning: printWarning(m.Message()) case NotifyError: printError(m.Message()) } } // Println is to inject a function that can report info,error and warning var Println = fmt.Println func Debugf(format string, args ...any) { if !IsDebug() { return } // make sure it ends with newline if !strings.HasSuffix(format, "\n") { format += "\n" } fmt.Fprintf(Console.StandardOut, format, args...) } func Warnf(format string, args ...any) { printWarning(fmt.Sprintf(format, args...)) } func Infof(format string, args ...any) { printInfo(fmt.Sprintf(format, args...)) } func Errorf(format string, args ...any) { printError(fmt.Sprintf(format, args...)) } func printInfo(args ...any) { fmt.Fprintf(Console.StandardOut, "%s\n", args...) } func printError(args ...any) { if ansiColorsEnabled { Println(append([]any{"\033[1;31merror:\033[0m"}, args...)...) } else { fmt.Fprintf(Console.StandardError, "ERROR: %s\n", args...) } } func printWarning(args ...any) { if ansiColorsEnabled { Println(append([]any{"\033[1;33mwarning:\033[0m"}, args...)...) } else { fmt.Fprintf(Console.StandardOut, "WARN: %s\n", args...) } } func PrintKeyValue(b io.Writer, k string, v any) { if ansiColorsEnabled { fmt.Fprintf(b, "\033[94m%s:\033[0m%v ", k, v) } else { fmt.Fprintf(b, "%s:%v ", k, v) } }