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quasiquoting: 3 parsers for camlp4 vs 1 for haskell?
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Date: 2009-04-22 (23:12)
From: Jon Harrop <jon@f...>
Subject: Re: [Caml-list] quasiquoting: 3 parsers for camlp4 vs 1 for haskell?
On Friday 17 April 2009 19:24:31 Joel Reymont wrote:
>  From the quasiquoting paper by Geoffrey Mainland [1], page 7:
> "The major advantage of our approach over that of camlp4
> is that we demonstrate how to use generic programming
> to reuse a single parser to parse quasiquoted patterns,
> quasiquoted expressions and plain syntax that does not
> include antiquotes. Because OCaml does not support generic
> programming out of the box,

I have no idea what he meant by this.

> in camlp4 this would require three separate parsers,

AFAICT, that was not true when he wrote it (Sept 2007) and is not true today.

> each generating different representations of the same concrete syntax."

That has never been true.

> Can someone shed light on how, where and why three different
> parsers are required for camlp4?

I've CC'd the author. Perhaps he can shed some light on this.

Dr Jon Harrop, Flying Frog Consultancy Ltd.