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| Date: | -- (:) |
| From: | Nicolas Pouillard <nicolas.pouillard@g...> |
| Subject: | Re: [Caml-list] Building a parser with Camlp4 |
Excerpts from David Teller's message of Wed Nov 28 08:14:00 +0100 2007: > Hi list (Nicolas Pouillard, in particular), Hi, > I'll probably need to rewrite my (not-fully-complete-yet) parser for > JavaScript 2 and I'm considering using Camlp4 as a parser generator for > a completely-non-OCaml target language. Now, before I do that, I have a > few questions in mind: > > * What is the power of Camlp4 ? The documentation says LL(1+epsilon) but > the examples look like LL(k) with a possibly large k. Yes `k' is the number of terminals at the beginning of a rule. > * How do I plug-in a lexer written with ULex ? It don't remember but cduce does that, and is updated to the new version of Camlp4. > * Camlp4 looks relatively slow -- is it much slower than Yacc ? Yes, that's the cost of dynamic extensibility. -- Nicolas Pouillard aka Ertai