func main() {
defer rescue()
flag.Usage = usage
flag.Parse()
if *help {
usage()
os.Exit(0)
}
if *log != "" {
err := logutil.SetOutputFile(*log)
if err != nil {
fmt.Println(err)
}
}
go handleQuit()
go logSignals()
args := flag.Args()
switch len(args) {
case 0:
interact()
case 1:
script(args[0])
default:
usage()
os.Exit(2)
}
}
func _log(ec *EvalCtx, fname string) {
maybeThrow(logutil.SetOutputFile(fname))
}