expand Validation in Model

[Tinple]

Can Validation support some filters like trim and escape ?
It would be fine like this:

{name: 'name', type: 'string', validation: 'required|length[1,20]|trim'}

[Tinple]

I find that in message demo that it can be done like this:

var input = document.getElementById('messageInput'),
      inputVal = input.value.trim(); 

I wonder if the filters like trim could be custom there?