David A. Wheeler scripsit:
> The "unsweeten" program could do this by reading ` as quasiquote (it
> already does that), and printing ` for quasiquote. That latter step is
> perfectly fine for Scheme. If that is then sent to Common Lisp via pipe
> or file, it'll work quite well. As you note, the implementation will
> *not* actually splice in the lists, execute, and so on. But that's
> okay; the underlying Common Lisp implementation can already read `
> (etc.) and do the right thing, we can just reuse their implementation.
Ah, I see. Very sensible.
> I think with a few tweaks, we can make unsweeten work much better with
> Common Lisp and some other Lisps. For Common Lisp, the main problem
> is that #' needs to mean function, and stuff like "quasiquote" needs
> to be printed as ` by unsweeten (so it can pass that text on to Common
> Lisp).
Yes, you just need a switch to say whether #'x means (syntax x) or
(function x). The quasiquote pretty-printing can be implemented for
all Lisps.
> We should probably make it possible to print weird symbols like
> "1+" as |1+| instead of the guile-specific #{1+}.
Lots of Schemes understand |...| syntax: see
<http://trac.sacrideo.us/wg/wiki/VerticalLineSymbols>.
--
Even the best of friends cannot John Cowan
attend each others' funeral. [email protected]
--Kehlog Albran, The Profit http://www.ccil.org/~cowan
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