Re: [xsl] for-each question

["Vasu Chakkera" <vasucv at hotmail dot com>]

Mike,
The for each is not for-each as in Xsl:for-each.What i meant by the pseudo 
code is ..
"The books are: " will be printed as many times as the processor encounters 
a book element.
I was emphasising the "effect".Sorry for the word "equivalent" there..
and Sorry for any confusions..
and yes i am with you in saying "xsl:apply-templates
causes nodes to be selected and processed."

Regds
Vasu

> From: Mike Brown <mike@skew.org>
> Reply-To: xsl-list@lists.mulberrytech.com
> To: xsl-list@lists.mulberrytech.com
> Subject: Re: [xsl] for-each question
> Date: Tue, 13 Aug 2002 11:04:06 -0600 (MDT)
>
> Vasu Chakkera wrote:
> > The problem is your template matches each book element.
> > this is equivalent to a pseudo code
> > for each book {
> > The books are:
> > Book-Name
> > }
>
> No it is not. "for each" is an instruction, an operation.
> A template is a declaration, a definition.
>
> A lot of XSLT newbies tend to be under the mistaken impression that
> xsl:template causes something to happen. Your pseudocode reinforces this
> confusion. They need to be told that it is actually the xsl:apply-templates
> that causes nodes to be selected and processed.
>
> I would tell him that his template was equivalent to defining
> the following functions (Python style):
>
> def handleAnyNode(node,result):                       # xsl:template
>   if node.type == ELEMENT and node.name == 'book':    # match="book"
>     handleBookNode(node,result)
>
> def handleBookNode(node,result):
>     frag = ResultTreeFragment()
>     frag.append(TextNode('The Books Are:'))           # The Books Are:
>     frag.child[0].append(Element('I'))                # <I>...</I>
>     frag.child[1].append(TextNode(currentNodeName())) # xsl:value-of
>     result.append(frag)
>
> And that it was his <xsl:apply-templates select="book"> that was equivalent 
> to
> calling
>
> for node in getAllNodesMatchingXpathExpression('child::book'):
>   handleAnyNode(node,mainOutput)
>
>    - Mike
> ____________________________________________________________________________
>   mike j. brown                   |  xml/xslt: http://skew.org/xml/
>   denver/boulder, colorado, usa   |  resume: http://skew.org/~mike/resume/
>
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list



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