[erlang-questions] Re: BERT

Tony Arcieri <>
Fri Nov 20 05:18:31 CET 2009

Are you at Rubyconf or something?  I'm trying to deconstruct the serendipity
of this post.

On Thu, Nov 19, 2009 at 9:08 PM, Richard O'Keefe <> wrote:

> BERT is a nice idea, but there's one thing I learned to be very scared
> of when working on Prolog implementations:  reserved atoms.  (Anyone
> who knows what numbervars/3 does will know the trouble caused by '$VAR'.)
> Instead of the bert-rpc.org specification saying that library writers
> should just make sure that 'bert' never turns up as the first element
> of a tuple, it should say that {bert,bert} decodes as 'bert', and ask
> library writers to always represent 'bert' as {bert,bert}.
> I mention it here because I've found the rule "make life simpler for
> users of an encoding even if it makes life harder for the encoder"
> a good one.
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Tony Arcieri

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