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New Camlp4 behavior (problem with rules starting with OPT)
-
Martin Jambon
-
Nicolas Pouillard
- Martin Jambon
- Christian Stork
- Christian Stork
-
Nicolas Pouillard
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| Date: | 2007-04-14 (05:16) |
| From: | Christian Stork <cstork@i...> |
| Subject: | Re: [Caml-list] New Camlp4 behavior (problem with rules starting with OPT) |
On Fri, Apr 13, 2007 at 03:49:32PM +0200, Nicolas Pouillard wrote: > On 4/13/07, Martin Jambon <martin.jambon@ens-lyon.org> wrote: > >With camlp4 3.10.0+beta, the following syntax extension does not work, > >but it used to work in the "old" camlp4. > > IMHO having rules starting with OPT don't fit very well with the > camlp4 parsing mechanism. > > It works in the 3.09 version but I don't know why. > > I think that you shouldn't rely on that anymore. Hmm, then the same applies to rules starting with LIST0, too? I think this has at least to be documented. Why not "simply" expand such rules into to obvious pair of rules? After all, OPT is just a shorthand for the programmer anyway. Or are you anticipating problems specifying such rules for DELETE? -- Chris Stork <> Support eff.org! <> http://www.ics.uci.edu/~cstork/ OpenPGP fingerprint: B08B 602C C806 C492 D069 021E 41F3 8C8D 50F9 CA2F