widgets\MaskedInput $mask

The input mask (e.g. '99/99/9999' for date input). The following characters can be used in the mask and are predefined:

• a: represents an alpha character (A-Z, a-z)
• 9: represents a numeric character (0-9)
• *: represents an alphanumeric character (A-Z, a-z, 0-9)
• [ and ]: anything entered between the square brackets is considered optional user input. This is based on the optionalmarker setting in $clientOptions.

Additional definitions can be set through the $definitions property.