XML.orgXML.org
FOCUS AREAS |XML-DEV |XML.org DAILY NEWSLINK |REGISTRY |RESOURCES |ABOUT
OASIS Mailing List ArchivesView the OASIS mailing list archive below
or browse/search using MarkMail.

 


Help: OASIS Mailing Lists Help | MarkMail Help

[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index]
RE: [xml-dev] XPath challenge: can you simplify this XPath expression?

> Hi Folks,
> 
> I created an XPath expression and I am wondering if it can be 
> simplified.

What exactly is the objective? Readability? or something else?
> 
> The XPath expresses this:
> 
>    There must be one child Title element and
>    there must be zero or more child Author elements and
>    there must be one child Date element and
>    nothing else.
> 

As John points out the second condition is always true.

What exactly does "nothing else" mean? Are you disallowing text nodes,
comments, processing instructions? Or do you just mean "no other elements"?

I think I would write

Title[1] and Date[1] and empty(* except (Title[1], Date[1], Author))

Regards,

Michael Kay
http://www.saxonica.com/
http://twitter.com/michaelhkay 



[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index]


News | XML in Industry | Calendar | XML Registry
Marketplace | Resources | MyXML.org | Sponsors | Privacy Statement

Copyright 1993-2007 XML.org. This site is hosted by OASIS