CE Whitehead cewcathar at
Wed Jan 31 23:06:07 CET 2007

>Stephane Bortzmeyer <bortzmeyer at nic dot fr> wrote:
>>From the ABNF Police Department:
>>It does not matter since the hex digit is case-insensitive.
>>RFC 4646 says:
>>  UNICHAR    = "&#x" 2*6HEXDIG ";"
>>and refers to RFC 4234 which says:
>>         HEXDIG         =  DIGIT / "A" / "B" / "C" / "D" / "E" / "F"
>>(And strings in ABNF are case-insensitive)
>To clarify my point, it does not matter whether the Registry uses uppercase 
>or lowercase in hex escapes, but it would be gratuitously inconsistent to 
>use uppercase in some places and lowercase in others for no apparent 
--C. E. Whitehead
cewcathar at

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