On Wed, 3 Jan 2009, Tony Finch wrote:
> On Wed, 3 Jun 2009, Jakub Narebski wrote:
> >
> > HEXDIGIT = 0-9 / a-f
> >
> > Well, it should probably be spelled in full. Probably, because I have
> > no experience with using ABNF... and didn't do my research :-)
>
> The ABNF core rules include a definition for HEXDIG. See appendix B of
> RFC 5234.
I have found it _after_ sending this post in Wikipedia article (which
is shorter than RFC 5234), but thanks anyway.
> > (should HEXDIGIT use lowercase a-f, or can it use uppercase A-F?)
>
> Double-quoted strings in ABNF are case-insensitive ASCII, so the HEXDIG
> rule accepts both. You need to use %x61 if you want a but not A.
HEXDIG_LC = DIGIT / %x61-%x66 ; 0-9a-f, case sensitive
Actually git accepts both lowercase and uppercase in HEXDIG (at least
for pkt-length), but it prefers lowercase.
--
Jakub Narebski
Poland
--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html