[dsdl-discuss] Re: Draft of Part 7 Character Repertoire Valdiation

On Thu, 2004-04-08 at 11:49, Rick Jelliffe wrote:

> Yes, it is the job of the Query language Binding to specify in what way
> the asssertion test
> is applied to the subjects. So we don't need the mechanism of your
> alternative, because
> it is taken care of by definition, in the language binding.
>
> In my suggested Part 7's case:
> 1) whitespace is stripped from the @test attribute
> 2) for each text node that is an immediate child of the element,
> or the value of the attribute or PI, or the contents of a comment,
> or the string value of a name {
> for each character in the string, {
> check that it conforms to the pattern.
> }

Does that mean that unlike in Schematron 1.5, a context can select
attributes?

> A way of implementing this is to wrap the stripped value of the @test in
> "[" and "]*" and bingo it becomes a normal regular expression.
>
> What is most important to understand is that we are not using regular
> expressions
> but character classes. We don't test strings, we test each character in
> a string without
> reference to others in the same string.

OK, that makes it clearer.

Thanks,

Eric

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