On Sat, 9 Apr 2011 19:41:00 +0200
Wolfgang Laun <wolfgang.laun@xxxxxxxxx> wrote:

> This is about the definition of a character class, using '['and ']',
> defining a set of characters that match a single character if it is
> one from the defined set.

And http://www.w3.org/TR/xmlschema-2/#nt-negCharGroup
[Definition:]   A character class subtraction is a 7character class
expression7 subtracted from a 7positive character group7 or 7negative
character group7, using the - character.

That's the basis of the question/misunderstanding


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regards

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Dave Pawson
XSLT XSL-FO FAQ.
http://www.dpawson.co.uk