Re: Backus Naur Form

I spent quite a while also looking for a BNF parser, and turned up a couple not on CPAN (eg this one) .. But I don't remember if I got around to actually trying it out.

I also found it strange that theres none on CPAN, I guess people don't do this too often.. (I was looking to parse the SQL92 spec, which is freely available in BNF form..)

In the end though, I acquired the SQL1999 spec in pdf form, and hand parsed the interesting bits..

Comment on Re: Backus Naur Form

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Re^2: Backus Naur Form by skyknight (Hermit) on Apr 27, 2005 at 11:58 UTC
Well, in that case, perhaps it's worth writing one. Er, maybe... I wonder if anyone other than the two of us would use it. :-)	[reply]
Re^3: Backus Naur Form by polypompholyx (Chaplain) on Apr 28, 2005 at 08:56 UTC
I would! I thought of writing a (E)BNF to P::RD parser in P::RD, but never quite got round to it. It would certainly be useful, as you can dig out BNFs for lots of languages that don't necessarily have P::RD-based parsers on CPAN. It would also make P::RD parsers hand-converted from changeable BNFs much easier to maintain. I would think it'd be quite simple to do this if you can write a meta-grammar for BNF in P::RD. Maybe it's so simple that it's been done several times already, but never made its way onto CPAN...	[reply]