func readPotentialSymbol(r *bufio.Reader) (string, bool) {
res, _ := sexp.ReadValue(r)
if res != nil {
if tres, ok := res.(sexp.Symbol); ok {
return tres.Value().(string), true
}
}
return "", false
}
func readPotentialBigNum(r *bufio.Reader) (*big.Int, bool) {
res, _ := sexp.ReadValue(r)
if res != nil {
if tres, ok := res.(sexp.BigNum); ok {
return tres.Value().(*big.Int), true
}
}
return nil, false
}