RosettaCodeData/Task/Substring-Top-and-tail/Standard-ML/substring-top-and-tail.ml

- val str = "abcde";
val str = "abcde" : string
- String.substring(str, 1, String.size str - 1);
val it = "bcde" : string
- String.substring(str, 0, String.size str - 1);
val it = "abcd" : string
- String.substring(str, 1, String.size str - 2);
val it = "bcd" : string