Re: [xsl] LimitPredicate

["G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx>]

At 2004-08-07 17:09 +0300, mankar@xxxxxxxxxxxxxxx wrote:
> I am having trouble detecting specific nodes in a node-set
> ...
> I
> mean
> can i write something like select"ITEM[position() mod 3 = 1](4) to select
> just the fourth node
> among the particular nodes.

You are so very close ... XPath does work as you expect, but your syntax is 
not quite right.

You can use:

  ITEM[position() mod 3 = 1][4]

which is equivalent to:

  ITEM[position() mod 3 = 1][position() = 4]

because each predicate is applied to the node set *resulting* from having 
applied the previous predicate.

I hope this helps.

....................... Ken

t:\ftemp>type manousos.xml
<ITEMS>
<ITEM>1</ITEM>
<ITEM>2</ITEM>
<ITEM>5</ITEM>
<ITEM>7</ITEM>
<ITEM>2</ITEM>
<ITEM>5</ITEM>
<ITEM>10</ITEM>
<ITEM>2</ITEM>
<ITEM>5</ITEM>
<ITEM>15</ITEM>
<ITEM>2</ITEM>
<ITEM>5</ITEM>
<ITEM>17</ITEM>
<ITEM>2</ITEM>
<ITEM>5</ITEM>
</ITEMS>

t:\ftemp>type manousos.xsl
<?xml version="1.0" encoding="iso-8859-1"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
                version="1.0">

<xsl:output method="text"/>

<xsl:template match="ITEMS">
  <xsl:value-of select="ITEM[position() mod 3 = 1][4]"/>
</xsl:template>

</xsl:stylesheet>
t:\ftemp>saxon manousos.xml manousos.xsl
15
t:\ftemp>


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