baruchel

Forth (or Postscript by the way) works exactly like that, but writing the function first also makes sense in functional programming, specifically when you care about currying functions: writing "f(g(h(x)))" (or "f g h x" or whetever) makes more sense, since you are not supposed to put all expected arguments at once.

I use it for several purposes : a few PHP scripts serving custom RSS files, easy temporary space for exchanging epub books between my phone and my e-reader, etc.