[antlr-interest] Re: Antlr grammar to parse Java classfile?
Terence Parr
parrt at jguru.com
Thu Dec 6 16:39:29 PST 2001
On Thursday, December 6, 2001, at 04:32 PM, John D. Mitchell wrote:
> IMHO, this gets to the more general point of allowing at least some
> amount
> of grammar analysis and parser/walker generation at run-time rather than
> the current "static" analysis. This would be at least nasty in the
> current
> system but in the predicated v3.0, I don't think it would be that
> onerous
> to support this since it's basically just the equivalent of run-time
> loop
> unrolling in a JITC.
Yeah, I was wondering if an "interpreted" version of ANTLR might be
nifty that did all analysis on demand. It's basically much easier to
say "which branches can I take given these k tokens" than "compute the
world of all possible k-tuples that predict each path". Once it
computed the analysis, it could cache that and reuse upon next
iteration. It would be like a JIT. Yep. :)
Ter
--
Chief Scientist & Co-founder, http://www.jguru.com
Creator, ANTLR Parser Generator: http://www.antlr.org
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