Exportie

Problem

At times it feels very tiresome to jump up to the file's header to update your -export attribute whenever you change arity, add or remove functions.

Solution

While there are some solutions available to address this, such as developing text editor macros, this might not be suitable for everybody.

Exportie offers a different, yet simple, solution to this problem.

Exportie is a parse transformation that will convert your code from this:

export@(f(A)) when is_list(A) ->
     A;
export@(f(A)) when is_binary(A) ->
     [A].

to this:

-export([f/1]).

%% ...

f(A) when is_list(A) ->
     A;
f(A) when is_binary(A) ->
     [A].

That's it! All you have to do to enable this is to add this line below to your module:

-compile({parse_transform, exportie}).

Neat, eh?

Extra Goodies

Customizable export@

Don't like export@ syntax? No problem. Exportie allows you to customize this, just use -exportie module attribute to define one:

-exportie(' ').

' '(f(A)) -> A.