Mask - regular expressions

[Mallika R Kumar]

Hi,
I'm having trouble coming up with the correct regular expressions to use in mask. The field I need to validate has the following rules:
1.length should be 10 characters - using minlength and maxlength for this - and it works fine.
2.accepted chars are 0 to 9 and the letter X - the value in my validation.xml is as follows:
<var>
<var-name>mask</var-name>
<var-value>^[0-9X]$</var-value>
</var>
Am I setting up the regular expression incorrectly ? Any pointers will be very helpful.

Thanks,
Mallika.

[Ray Stojonic]

The regex you've setup says: The string is valid if it contains 0-9 or X and one character long, you'll need to add that you want it to be 10 characters long.

^[0-9X]{10}$

Given that you are now checking it's length with the regex, you can get rid of the min/max length bits if you want.

[Mallika R Kumar]

Thanks Ray - I changed th mask value, and it works now.

[Mallika R Kumar]

Hello,
The field I need to validate needs to be 10 characters long, and can contain numbers 0 to 9, and the letter X. The mask value I have set up is:
<var-name>mask</var-name>
<var-value>[0-9X]${10}</var-value>

This allows the following value to be entered and saved, which is not acceptable.
345678yyy8
Is my regular expression incorrect ? Any hints will be greatly appreciated.

Thanks,
Mallika.