Regular expression for time period

Question

I am using jdev 12.2.1.0.0 and I am trying to validated an input field(String) with the "" in which i am try to enter period of time in formats shown below

• 1h 40m 20s
• 1h 40m
• 2h 30s
• 30m 20s
• 30m
• 30 (It will be considered as 30m)
• 10s

So I need a regular expression which allow a user to enter the period of time in any given format also no need to consider the space between the unit (ie: 1h30m is also valid).

Answer 1

Here is a suggestion that matches all the cases you wanted:

((\d{1,2}h\s?)?(\d{1,2}m\s?)?(\d{1,2}s\s?)?)|\d{1,2}

Demo on regex101