This is forth on steorids in an Erlang environment send and receiving message running in parallell.
And it is nearly functional ...
module based forth.
words are organized into modules/vocabularies, words are called by using :, built in words are access directly without the : module separator.
The words in interactive mode are added into a special module.
: sqr dup * ;
In a module:
module foo
\ ( x -- (x*x) )
: sqr dup * ;
\ ( <a1> .. <an> <n> -- <sum> )
: sum 0 do + loop ;
If compiled then this is translated into the module foo.
-module(foo).
-export(['_ffe_sqr'/0,'_ffe_sum'/0]).
'_ffe_sqr'() ->
{ 0, <<"sqr">>, fun ffe:docol/4, ffe:star/0, ffe:semis/0 }).
'_ffe_sum'() ->
{ 0, <<"sum">>, fun ffe:docol/4, ffe:lit/4, 0,
fun ffe:pdo/0,
fun fee:plus/0,
fun ffe:ploop/0, -2,
ffe:semis/0 }.
How do you compile CREATE DOES> in ffe? let's show an example.
: my-constant CREATE , DOES> @ ;
Compiles into
my-constant =
fun() -> {0,<<"my-constant">>, fun ffe:docol/4,
fun ffe:'_ffe_create/0,
fun ffe:comma/0,
fun ffe:'ffe_does'/0,
fun ffe:'ffe_fetch'/0,
fun ffe:semis/0 }
end.
This is a defining word that creat a constant used like this
10 my-constant ten
This compiles into
ten =
fun() -> {0, <<"ten">>, fun ffe:does1/4.
{6,
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