package main import ( "bufio" "flag" "fmt" "log" "os" "strings" ) func main() { flag.Usage = func() { fmt.Fprintf(os.Stderr, "Usage: boxtotxt in.box\n") flag.PrintDefaults() } flag.Parse() if flag.NArg() != 1 { flag.Usage() os.Exit(1) } f, err := os.Open(flag.Arg(0)) defer f.Close() if err != nil { log.Fatalf("Could not open file %s: %v\n", flag.Arg(0), err) } scanner := bufio.NewScanner(f) for scanner.Scan() { t := scanner.Text() s := strings.Split(t, "") if len(s) < 1 { continue } fmt.Printf("%s", s[0]) } fmt.Printf("\n") }