Question

Hi
I want a regular expression (Java) for a string in the following form:
Starts with R or S , then space , then number or number / number or number/number/number
examples:
R 51/53 , R 41, R 43, S 36/37/39, S 2, S 24, S 26/2

thanks in advance

Answer 1

So the basic regex is:

[RS] ([0-9]+)(/[0-9]+){0,2}

but it needs some masking, I guess:

String regex = "[RS] ([0-9]+)(/[0-9]+){0,2}";
System.out.println (param + "\t" + param.matches (regex));

I’m always confused, because sed, java, scala – all have different opinions what to mask and what not. 🙂

(update: testet, modified masking)