[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: Quick question regarding XPath

• To: "G. Ken Holman" <gkholman@c...>
• Subject: Re: Quick question regarding XPath
• From: Murali Mani <mani@C...>
• Date: Wed, 25 Feb 2004 06:39:25 -0800 (PST)
• Cc: xml-dev@l...
• In-reply-to: <5.2.0.9.0.20040225092520.015c6890@p...>
• References: <Pine.GSO.4.58.0402250549490.17412@p...><Pine.GSO.4.58.0402250549490.17412@p...><5.2.0.9.0.20040225092520.015c6890@p...>

On Wed, 25 Feb 2004, G. Ken Holman wrote:

> >// is the descendant axis - not the root of the document.
>
> Not quite true and your questions are answered when you realize that "//"
> is an abbreviation of "/descendent-or-self::node()/" ... note how it does
> include itself.  And also note that you cannot end an expression with "//".

That is correct.. that matters if we use order predicates, otherwise I
believe it does not matter whether // is descendant or
/descendant-or-self::node()/ -- I think ...

> So "//" of "//@b" includes the current node, so the current node's b
> attribute is addressed, and it includes its children and descendent
> elements, so their b attributes are also included.
>
> >the question tries to see whether attributes and elements are treated
> >similarly by the // axis
>
> The question is not well phrased.  Since "//" is *not* an axis, the
> question would be (I think) "does the // abbreviation give me access to all
> descendent nodes and myself so that when I step away from those nodes in
> the next location step of the location path I can hit both element and
> attribute children I get all attached attributes and child elements and all
> their attributes?" and the answer is yes.
>
> I hope this helps.
>
> ...................... Ken

It definitely helps,

thanks. murali.

• Follow-Ups:
  • Re: Quick question regarding XPath
    • From: "G. Ken Holman" <gkholman@C...>

• References:
  • Quick question regarding XPath
    • From: Murali Mani <mani@C...>
  • Re: Quick question regarding XPath
    • From: "G. Ken Holman" <gkholman@C...>

• Prev by Date: Re: Quick question regarding XPath
• Next by Date: Re: Quick question regarding XPath
• Previous by thread: Re: Quick question regarding XPath
• Next by thread: Re: Quick question regarding XPath
• Index(es):
  • Date
  • Thread