[2.0] regex question

[Pirate]

How would you go about doing this using regex :

I want to validate "Age" field which complies to these rules:
1.doesn't accept "zero" at the beginning.
2.doesn't excced 3 digits.
3.accept 2 or 3 digits.

examples of valid ages: 20 , 38,102

Sorry , can't construct this little regex string

Thank u for any help !

[wild_bill]

Try this

^[1-9][0-9]{0,2}$

[Pirate]

Try this

^[1-9][0-9]{0,2}$

I tested in Expresso,returned no results!so it's not working

[nemaroller]

WildBill's regex would work if you enclose it in paranthesis:
^([1-9][0-9]{0,2})$

However, it also creates a grouping on the last digit.

Try this:
^([1-9][0-9][0-9]*)*

[Pirate]

WildBill's regex would work if you enclose it in paranthesis:
^([1-9][0-9]{0,2})$

However, it also creates a grouping on the last digit.

Try this:
^([1-9][0-9][0-9]*)*

same result..no matching

[nemaroller]

How do you mean no matches?

I get many matches.

Try the same regex in Regex lib:

http://regexlib.com/RETester.aspx

[wild_bill]

I tested it with vb.net, and it worked.

Dim rx As New Regex("^[1-9][0-9]{0,2}$")
Console.WriteLine(rx.IsMatch("20"))
Console.WriteLine(rx.IsMatch("38"))
Console.WriteLine(rx.IsMatch("102"))
Console.WriteLine(rx.IsMatch("3"))
Console.WriteLine(rx.IsMatch("1022"))
Console.WriteLine(rx.IsMatch("03"))

[Pirate]

Sorry,multiline was disabled in Expresso..all regex are working

Thanks all

[wild_bill]

You might consider modifying so no values > 199 are allowed.

[nemaroller]

He could have meant age as in the number of days of an outstanding invoice.

He never clarified that though.

[Pirate]

I will consider that next time