Not allow special characters in text Custom Field

-- HikaShop version -- : 2.6.0
-- Joomla version -- : 3.4.4
-- PHP version -- : 5.5.26

Hi

I have created a text custom field but when a client enter special characters like: !@#$%^&*() e.t.c. it creates problem in a custom report module I have.
Can we not allow to enter them, or make the field to delete them on save?

Thank you

Hi,

Sure, no problem.
Edit your custom field via the menu System>Custom fields. There, you can use a regex in the field "Regular expression check".
For example, in your case, this should do the job: www.regular-expressions.info/tutorial.html