[erlang-questions] Erlang and syntax.

[Duncan McGreggor]

On Sun, Feb 23, 2014 at 3:43 PM, Richard A. O'Keefe <ok@REDACTED>wrote:

>
> On 23/02/2014, at 10:33 AM, Mikhail Gusarov wrote:
>
> >> But when you see unknown function you still have no idea what it does
> and
> >> you have to figure it out. Any abstraction works in same way.
> >
> > There is subtle difference: all functions conform to the function
> > abstraction: function does not alter/capture names from calling
> > namespace and function does not arbitrarily transfer control. Function
> > is a simple abstraction: it accepts arguments and returns result.
>
> There is Lisp.  And then there is Scheme.
>
> Scheme define-syntax macros do NOT alter/capture names from
> the calling namespace.  They are said to be "hygienic."
>
> Thanks to throw/1, function calls CAN transfer control.
> (The Scheme analogue is call-with-current-continuation.)
>
> So a Scheme-flavoured-Erlang would conform to the claimed
> abstraction every bit as well as Erlang without any kind of
> macros.
>

LFE has come up a couple of times (yay!), but as for an Erlang Scheme,
there is this:
  https://github.com/the-concurrent-schemer/scm

Also, I believe that Joxa is a Lisp-1 (though it does have unhygenic
macros).

d


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