I think I can answer this question - it is because of conditioning and
upbringing of traditional SGML.  SGML normally isn't case sensitive.
SGML authoring tools make the tags either upper or lower case.

I hate to admit the number of hours I have wasted wondering why the
XSL style sheet wasn't working because I forgot about case sensitivity.
I would like to think that I am not that dense but when I am working
with SGML case sensitivity seems to go out of my mind |-).

Betty

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On Fri, 24 Apr 1998, Rob McDougall wrote:

> I've been looking through many of the established XML grammars, and am
> left with a question.  Why do all the grammars appear to be in
> lower-case?  Since xml has become case-sensitive, it would seem to me
> that people would adopt one of the popular conventions used in other
> case-sensitive applications like programming languages.  Why haven't I
> seen any grammars that look like this:
> 
> <TagName AttributeName="EnumeratedAttributeValue"/>
> 
> If someone were to create a grammar that mixed upper-case and lower-case
> would they have trouble getting people to adopt it?  Is there a
> compelling reason to reject a mixed case grammar.  To my eye, mixed case
> is more attractive.  It's more like natural English.
> 
> So, what are the opinions on each of:
> - tag names (lowercase, uppercase, mixed-case)
> - attribute names (lowercase, uppercase, mixed-case)
> - enumerated attribute values (lowercase, uppercase, mixed-case)
> 
> And with each option, are there opinions on any punctuation? Hyphens,
> underscores, nothing?
> 
> Thanks in advance,
> 
> Rob
> 
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> 


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list