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- From: James Clark <jjc@jclark.com>
- To: xml-dev@ic.ac.uk
- Date: Sat, 12 Apr 1997 10:31:37 +0700
At 21:31 11/04/97 GMT, Peter Murray-Rust wrote:
>My understanding of PRECEDING is that it can choose from 'the set of all
>elements and strings in the entire document which occur or begin before the
>location source'. So in the example:
>
><A ID="A">
> <B ID="B">
> Bstring
> </B>
> <C ID="C">
> Cstring
> <D ID="D"/>
> <E ID="E"/>
> <F ID="F"/>
> </C>
></A>
>
>I'd be grateful to know if I've got these right:
>
>ID(D)PREVIOUS(1) gives 'CString'
>ID(D)PREVIOUS(2) fails
>ID(F)PREVIOUS(-2) gives <D>
One might think so, but since C has mixed content and no white-space in
mixed content is automatically ignored, the white-space following the D and
E elements will be data and hence constitute pseudo-elements. Thus
ID(F)PREVIOUS(-2) will actually designate E.
James
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