- From: Pete Cordell <petexmldev@tech-know-ware.com>
- Date: Fri, 5 Aug 2005 08:08:56 +0100
- To: "Michael Kay" <mike@saxonica.com>, <xmlschema-dev@w3.org>
Original Message From: "Michael Kay" <mike@saxonica.com>
> In particular, what characters are allowed to appear as s and e in a range
> [s-e]?
>
> The production rules say
>
> [18] seRange ::= charOrEsc '-' charOrEsc
> [20] charOrEsc ::= XmlChar | SingleCharEsc
> [21] XmlChar ::= [^\#x2D#x5B#x5D]
>
> which imply that [, ], \, and - are disallowed in both positions.
I'm not sure if I'm looking at the same version as you (Schema part 2 second
edition), but my reading is that the characters [, ], \, and - are covered
by the SingleCharEsc production:
[24] SingleCharEsc ::= '\' [nrt\|.?*+(){}#x2D#x5B#x5D#x5E]
So you might end up with something like: [\[-\]]
Pete.
--
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Pete Cordell
Tech-Know-Ware Ltd
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Received on Friday, 5 August 2005 07:10:09 UTC