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RE: How to express in XQuery...

From: Jerome Simeon <simeon@research.bell-labs.com>
Date: 11 Feb 2003 14:59:28 -0500
To: Michael Rys <mrys@microsoft.com>
Cc: Michael Burbidge <mburbidg@adobe.com>, www-ql@w3.org
Message-Id: <1044993568.23060.946.camel@localhost.localdomain>

Michael is right that you need to use a sequence. However, sequences
bind less tightly than FLWOR so you need parenthesis as in:

<users> {
	for $user in document("...")//users
 	return ($user/name/text(), <br/>)
} <users>

Best regards,
- Jerome

On Tue, 2003-02-11 at 14:52, Michael Rys wrote:
> Try:
> 
> <users> {
>  	for $user in document("...")//users
>  	return $user/name/text(), <br/>
> } <users>
> 
> (for is part of the XQuery expression syntax, thus it needs to be
> embedded inside {} inside a constructor.)
> 
> Adding a PI then is straight forward (although I am not sure if our
> prototype supports that yet).
> 
> Best regards
> Michael
> 
> > -----Original Message-----
> > From: Michael Burbidge [mailto:mburbidg@adobe.com]
> > Sent: Tuesday, February 11, 2003 11:33 AM
> > To: www-ql@w3.org
> > Subject: How to express in XQuery...
> > 
> > 
> > 
> > Given the following xml document
> > 
> > <users>
> > 	<name>Mike Jones</name>
> > 	<name>Jon Stue</name>
> > <users>
> > 
> > How would one generate the following xml document
> > 
> > <users>
> > 	Mike Jones<br/>
> > 	Jon Stue<br/>
> > <users>
> > 
> > I can't quite figure out how to express the text of the name and the
> > <br/> element as part of a return expression.
> > Here's what I have:
> > 
> > <users>
> > 	for $user in document("...")//users
> > 	return { $user/name/text() }<br/>
> > <users>
> > 
> > But the expression in the return is not a valid expression, according
> > to the Microsoft prototype.
> > 
> > In addition how would one tack a processing instruction on the front.
> > The following is also not a valid xquery expression.
> > 
> > <?some-pi?>
> > <users>
> > 	for $user in document("...")//users
> > 	return { $user/name/text() }<br/>
> > <users>
> > 
> > Thanks,
> > Michael-
-- 
Jerome Simeon <simeon@research.bell-labs.com>
Lucent Technologies
Received on Tuesday, 11 February 2003 15:00:52 GMT

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