Re: Nifty ABNF tool, and error in ABNF syntax

On Thu, 26 Mar 2009, Jack Jansen wrote:

> I came across a nitfy tool: abnfgen <http://www.quut.com/abnfgen>.
>
> It reads an abnf syntax and then generates random strings that adhere to that 
> syntax. Very handy to test a parser. Your syntax needed a bit of minor 
> massaging before abnfgen liked it, such as including the definitions for 
> pchar and such that you've included by reference, and getting rid of the 
> boring productions (like the non-media-fragment alternative in segment).
>
> One of the first things it did was point out a problem with the syntax, I 
> think:
> 	utf8string    = "'" *pchar "'"
> But: single quote is also part of pchar, so this would allow a production of 
> 'a'b', which I think is not what was intended.

Yes, we should define more explicitely what is allowed there and what 
needs escaping. We can do that later, and just put a note for now in the 
WD that it needs clarification like avoiding "'" inside the string.

> --
> Jack Jansen, <Jack.Jansen@cwi.nl>, http://www.cwi.nl/~jack
> If I can't dance I don't want to be part of your revolution -- Emma Goldman
>
>
>

-- 
Baroula que barouleras, au tiéu toujou t'entourneras.

         ~~Yves