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Re: [xsl] counting nodes before a certain node

2009-12-01 17:02:45
Hi

Thank you for all your response. I am sorry that I haven't been able
to express my problem clearly. I will try it again.
What I need is this:
My input:
<books>
<book>
<title>First title</title>
</book>
<notes>The following books talk about history.</notes>
<notes>For further information please log on to </notes>
<notes>Thank you for choosing.. </notes>
<book>
<title>Abraham Lincoln </title>
</book>

<authors>
sample data

</authors>
<notes>Please call... </notes>
<notes>Copyright Information </notes>
<book>

sample data
</book>
</books>

When I am in the template called book, I want to display all notes
after the first book up to the second book element.

So in my XSLT when I say:

<xsl:template match="books">
                <xsl:apply-templates select="book"/>
        </xsl:template>
        <xsl:template match="book">
                <elem1>
                        <title>
                                <xsl:apply-templates select="title[1]"/>
                        </title>
                        <notes>
                                <xsl:apply-templates
select="following::notes[following-sibling::*[1][self::book]]"/>
                        </notes>
                </elem1>
        </xsl:template>

It selects only the last <notes> element and it selects both the notes
elements right after <book> and after <author>.
Output:
<elem1>
        <title>First title</title>
        <notes>Thank you for choosing.. Copyright Information </notes>
</elem1>
<elem1>
        <title>Abraham Lincoln </title>
        <notes>Copyright Information </notes>
</elem1>
<elem1>
        <title/>
        <notes/>
</elem1>

My desired output is:

<elem1>
        <title>First title</title>
        <notes>The following books talk about history.For further information
please log on to. Thank you for choosing..  </notes>
</elem1>
<elem1>
        <title>Abraham Lincoln </title>
        <notes>Please call... Copyright Information </notes>
</elem1>
<elem1>
        <title/>
        <notes/>
</elem1>

Please let me know if I am more clear now.



On Mon, Nov 30, 2009 at 6:01 PM, Wendell Piez 
<wapiez(_at_)mulberrytech(_dot_)com> wrote:
Hi,

At 06:02 PM 11/30/2009, Mike wrote:

Given XSLT 2.0, you can select two elements $a and $b, and then the number
of elements between these two is

count($b/preceding-sibling::*) - count($b/preceding-sibling::*) - 1

This is probably more efficient than

count(*[. >> $a and $b >> .])

but you can use that if it's more convenient.

This answers the question as posed.

A better solution, however, might be available if you specified your count
differently.

For example, you might be better off asking "how do I count notes elements
that do not have book or author element ancestors", or "how do I count notes
elements that are directly inside books, but not deeper". (From your problem
statement it's impossible to know whether one of these might not be the
case.)

Cheers,
Wendell

-----Original Message-----
From: a kusa [mailto:akusa8(_at_)gmail(_dot_)com]
Sent: 30 November 2009 22:40
To: xsl-list
Subject: [xsl] counting nodes before a certain node

Hi

How do I count nodes up to a certain point in XSLT?

Example:

My xml file looks like this:

<books>
<book>
<title>First title</book>
</book>
<notes>The following books talk about history.</notes>
<notes>For further information please log on to </notes>
<notes>Thank you for choosing.. </notes> <book>
<title>Abraham Lincoln </title> </book>

<authors>
sample data

</authors>
<notes>Please call... </notes>
<notes>Copyright Information </notes>
<book>

sample data
</book>
</books>

In my XSLT file, I want to count all <notes> just before the
second <book> element but immediately after the first book
element or just after <authors>.

How do I count all the notes elements here?

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 mailto:wapiez(_at_)mulberrytech(_dot_)com
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