Re: Typographical error in draft-klensin-unicode-escapes-00

On Fri, Jan 19, 2007 at 11:38:56AM -0500,
 John C Klensin <john-ietf@xxxxxxx> wrote 
 a message of 18 lines which said:

> It has been called to my attention that I should have checked the
> ABNF syntax rules more carefully before posting this draft.

There is another strange thing: 

   BMP-form =  "\u" Hex-quad
   Full-form =  "\U" 2*2 Hex-quad

How can you tell one from the other before you encounter the second
Hex-quad? By the case of the U, as it seems from reading the text
following the grammar?

If so, this is wrong because ABNF strings are case-insensitive so one
should use:

   BMP-form  =  "\" %x75 Hex-quad   
   Full-form =  "\" %x55 2*2Hex-quad