[XSL-LIST Mailing List Archive Home] [By Thread] [By Date]

Re: [xsl] counting nodes before a certain node

---

---

Hello Michael:

I took the approach that you suggested instead of counting nodes, and
it worked like a charm!

Thanks a lot.

On Tue, Dec 1, 2009 at 5:58 PM, Michael Kay <mike@xxxxxxxxxxxx> wrote:
>
> Right, so you don't actually want to count the nodes between the two book
> elements, you only asked to count them because you thought that was a means
> to an end?
>
> I think what you probably want is something like
>
> <xsl:template match="books">
>  <xsl:for-each-group select="*" group-starting-with="book">
>    <elem1>
>      <xsl:copy-of select="current-group()/(book/title, notes)"/>
>    </elem1>
>  </xsl:for-each-group>
> </xsl:template>
>
> Regards,
>
> Michael Kay
> http://www.saxonica.com/
> http://twitter.com/michaelhkay
>
>
>
>
>
>
>> -----Original Message-----
>> From: a kusa [mailto:akusa8@xxxxxxxxx]
>> Sent: 01 December 2009 22:02
>> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
>> Subject: Re: [xsl] counting nodes before a certain node
>>
>> 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@xxxxxxxxxxxxxxxx> 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@xxxxxxxxx]
>> >> > 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?
>> >
>> >
>> >
>> ======================================================================
>> > Wendell Piez
>> mailto:wapiez@xxxxxxxxxxxxxxxx
>> > Mulberry Technologies, Inc.
>> http://www.mulberrytech.com
>> > 17 West Jefferson Street                    Direct Phone:
>> 301/315-9635
>> > Suite 207                                          Phone:
>> 301/315-9631
>> > Rockville, MD  20850                                 Fax:
>> 301/315-8285
>> >
>> ----------------------------------------------------------------------
>> >  Mulberry Technologies: A Consultancy Specializing in SGML and XML
>> >
>> ======================================================================

---