Re: [idn] Case-insensitiveness of prefix

["Adam M. Costello" <idn.amc+0@nicemice.net.RemoveThisWord>]

> According to Section 5. of last IDNA document (draft-ietf-idn-idna-04.txt),
> "It(=prefix) MUST be recognized in a case-insensitive manner."
> 
> I could not understand implications of that statement.

Here's what I meant when I wrote it:  Step 5 of ToASCII and step 3 of
ToUnicode (which check for the presence or absence of the ACE prefix)
must disregard the case of the letters in the ACE prefix.

> Does it mean that IDNA prohibit the use of case information of prefix
> for any purpose?

That was not my intention.  Perhaps the statement should be clarified.
Paul, how about changing that sentence to:

    The ToASCII and ToUnicode operations MUST recognize the ACE prefix
    in a case-insensitive manner.

AMC