06 Sep, 2016

Set up Input Mask (Regex) on Kizeo Forms to prevent transcription errors

An Input Mask refers to a string expression, defined by a developer, that governs what a user is allowed to enter in as input in a text box. It can be said to be a template, or set format that entered data must conform to, mainly used for the purposes of data integrity by preventing transcription errors. Enhance data integrity by preventing transcription errors!

Step 1 : Define your input mask.

Regular Expressions (Regex): Basically, a regular expression is a pattern describing a certain amount of text. Their name comes from the mathematical theory on which they are based. More information can be found  here

Basic regular expressions (Regex) : 

You can easily create simple Regex using 'A' for letters (alpha) and 'N' for numbers (Numerical): Some examples :

  • A date : NN-NN-NNNN
  • A licence plate : AA-NNN-AA
  • National insurance number : N NN NN NN NNN NNN NN

Complex regular expressions :

To create more complex Regex, you can visit this website:  Regex101.com (There is a 'Regex library') Some examples :

  • UK Postcode Checker: /^([a-zA-Z]{1,2}\d{1,2}[a-zA-Z]{0,2})\s*?(\d[a-zA-Z]{2})$/gmi
  • Match numeric input that may or may not include commas and/or decimal point : /^[1-9][\,\d]*(.\d+)?$/i
  • The word « process » must be displayed at the end : /process$/gi
  • Prime number Regex: /^1?$|^(11+?)\1+$/mg
  • Distorted email addresses (Matches distorted email addresses and converts them back to real ones): /^(?'Username'[-\w\d\.]+?)(?:\s+at\s+|\s*@\s*|\s*(?:[\[\]@]){3}\s*)(?'Domain'[-\w\d\.]*?)\s*(?:dot|\.|(?:[\[\]dot\.]){3,5})\s*(?'TLD'\w+)$/gm

Etape 2 : Input field settings.

  • Go to the settings of your input field, and then in 'Advanced'.
  • To create your input mask, simply type in your Regex in the dedicated area (Input ask - Regular expression), as shown in the above screenshot.
  • You can also add an help message for the user (see screenshot)

On a mobile.

On a mobile device, the 'help message' can be accessed via the tooltip (little '?'): input regex help text Data entry is validated only if it does comply with the predefined format (i.e. your Regex) If it does not comply with it, a message is displayed below :   input regex invalid However, if it does comply with the Regex format, then a green icon is displayed: input regex


Go digital today!

Create an account to test the Kizeo Forms App Free of charge for 15 days !

We are available to answer your questions, suggestions, remarks, etc
Would you like to subscribe to our Newsletter?