How to call one filter from another filter in angular.js

I have a filter, linkifyStuff, in which I want some variables processed using another filter. I can't figure out the syntax to call one filter from another.

I know about filter chaining – that's not what I want to do. I want to apply a filter to a local variable in linkifyStuff filter, not to its input or output.

I would expect something like the folowing to work, but $filter('filtername') is not the correct syntax apparently.

module.filter('sanitizeStuff', function() {
    // ...
})

module.filter('prettifyStuff', function() {
    // ...
})

module.filter('linkifyStuff', function($filter) {
    return function(text) {
        // ...
        // ...
        return $filter('sanitizeStuff')(foo) + ' whatever ' + $filter('prettifyStuff')(bar)
    }
})

I could write a plain js functions for sanitizeStuff and sanitizeStuff and call that function from these filters but this seems wrong. Any advice on how to do it the angular way?

Thank you.