I was also looking for some postfix operator syntax in a DSL, and I noticed that
`*`
Run
(how to write that in as inline RST?) can actually be used. Looks like a
postfix operator, but semantically it is just an `AccQuoted` argument to the
preceding `Command` node. In your case:
activations:
act sigmoid`*`:
fn: 1 / (1 + exp(-x))
deriv: fx * (1 - fx)
act tanh`*`:
fn: tanh(x)
deriv: (let t = tanh(fx); 1 - t * t)
Run
The relevant part of the AST is:
Command
Ident "act"
Command
Ident "sigmoid"
AccQuoted
Ident "*"
Run
Slightly non-standard, but works well in my purpose and looks even better in an
editor with special syntax highlighting for acc-quoted ops.