Regular expression for positive decimal number with 0, 1 or 2 decimal places

Question

Please help me make regular expression for positive decimal number with 0, 1 or 2 decimal places. It must allow comma and dot. For example it must allow:

0,0         


        

Answer 1

you can use the bracket notion to limit the number of digits:

\d{0,2} would mean any run of digits from a minimum of 0 to a maximum of 2