Re: [xml] xpath and the document order

["Liam R. E. Quin" <liam holoweb net>]

On Sat, 2005-05-07 at 01:29 +0400, Oleg A. Paraschenko wrote:
>   Hello,
>
>   as I understand, the function "xmlXPathEvalExpression" doesn't have to
> return nodes in the document order. So here are questions.
>
> 1) Could you show an example of XML and XPath, for which
>    "xmlXPathEvalExpression" returns nodes not in the document order?

This most often happens in conjunction with the // operator,
with alternation (Xpath 2 only) and with the reverse axes such
as preceding-sibling.

> 2) What should be used for sorting a set of nodes:
>
> "xmlXPathNodeSetSort" from "xpath.c" from libxml2, or
> "xsltDocumentSortFunction" from "xsltutils.c" from libxslt?

Doesn't it depend whether you are sorting by document order or
by some other key?

Liam

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