With the regex extension you can use any regular expression as a mask. Currently this does only input restriction. There is no further masking visualization.
Example simple email regex:
$(document).ready(function(){
$(selector).inputmask('Regex', { regex: "[a-zA-Z0-9._%-]+@[a-zA-Z0-9-]+\\.[a-zA-Z]{2,4}" });
});
Example turkish words regex (utf8):
$(document).ready(function(){
$(selector).inputmask('Regex', { regex: "[a-zA-Z-9şŞıİçÇöÖüÜĞğ\-]+" });
});