<?xml declaration

[james anderson too]

i think the "proposed recommendation" drafters agree with you. to wit (from
http://www.w3.org/TR/PR-xml-971208):

[17]  PI ::=  '<?' PITarget (S (Char* - (Char* '?>' Char*)))? '?>'
[18]  PITarget  ::=  Name - (('X' | 'x') ('M' | 'm') ('L' | 'l'))

Richard Light wrote:

> Hi,
>
> I notice that the current draft has switched the case of the XML
> declaration and its arguments to lower case:
>
> <?xml version="1.0" encoding="UTF-8"?>
>
> Now that case is significant, this presumably matters.  Is there a
> particular reason for this?  Other PIs will have a PItarget where 'xml'
> sits, and this isn't constrained to be any particular case.  Wouldn't it
> be kinder to make it '<?' ('XML'|'xml') ... ?!
>
> (The DTD declarations (<!ELEMENT, etc.) remain in upper case, presumably
> for compatibility with what SGML systems produce.)
>
> Richard.
>
> Richard Light
> SGML/XML and Museum Information Consultancy
> richard at light.demon.co.uk
>
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