Processing a value through a global helper (middleware)

[moniuch]

In the examples a funciton that is run on a view (or model) is usually its method. Would it be possible to implement a syntax which would allow to let a model property through a global function - like a helper, say: a function to format amount as currency.

So that if we have a model:

{
  name: Lexus,
  price: 81999,
}

we would run the price through a helper named amountToCurrency(amount, format) using a syntax along {{ ^amountToCurrency(amount, '$0.00') }}.

Is that feasible?