[Tools-discuss] Re: Bug in the Perl ABNF parser?

[Harald Alvestrand <harald at alvestrand.no>]

The Perl ABNF parser is not maintained any more.
There are a few bugs - this one has to do with case mapping; my tool did 
not case fold rule names, and only accepted A-F in hex literals, not a-f.

And I think Bill's parser has much better error messages. Tools.ietf.org 
people, can you remove the link from your site?

                Harald


--On 20. November 2006 23:08 +0100 Stephane Bortzmeyer <bortzmeyer at nic.fr> 
wrote:

> [Is the Perl ABNF still parser still maintained? The email address in
> the source bounces. If it is not maintained any more, wouldn't it be a
> good idea to indicate it on the Web page at tools.ietf.org?]
>
> The attached grammar, extracted from draft-ietf-imapext-sort-18.txt
> seems perfectly legal (and is accepted by all the other tools) but
> make the Perl parser protest:
>
> ...
> Rule: subj-trailer    = "(fwd)" / WSP
> Rule: subj-base       = NONWSP *(*WSP NONWSP)
>                      ; can be a subj-blob
> Not OK
> Syntax error: BLOBCHAR        = %x01-5a<*> / %x5c /





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