Hello,
I've been reading and trying the second day now, but I really can't figure out how to do this apparently simple thing. Maybe someone of you could please give me a hand with this...
My xml documents contain book-like content which is structured by sections and sub-sections, similar to DocBook. These documents contain data for different groups of readers, while some people (Group A) get to see the whole text and others (Group B) only a subset.
A simplified document would look like this (the visible-attribute defines whether the section is shown to Group B or not):
<?xml version='1.0' encoding='utf-8'?>
<?xml-stylesheet href='myStyles.xsl' type='text/xsl'?>
<Chapter>
<Title>My chapter</Title>
<Sect1 visible="True">
<Title>My section</Title>
<Sect2 visible="True">
<Title>My first sub-section</Title>
</Sect2>
<Sect2 visible="False">
<Title>My second sub-section</Title>
</Sect2>
<Sect2 visible="True">
<Title>My third sub-section</Title>
</Sect2>
</Sect1>
<Sect1 visible="True">
<Title>My second section</Title>
<Sect2 visible="True">
<Title>Another sub-section</Title>
</Sect2>
</Sect1>
</Chapter>
So far no problem, but now the sections have to be numbered automatically and continuously for both groups. The result for Group B should look like this:
1. My section
1.1 My first sub-section
1.2 My third sub-section
2. My second section
2.1 Another sub-section
The normal way of auto-numbering in xslt with
<xsl:number level="multiple" count="Sect1" format="1." />
doesn't work, because it still counts the invisible sections that it shouldn't. The result would be:
1. My section
1.1 My first sub-section
1.3 My third sub-section
2. My second section
2.1 Another sub-section
What I tried now is a solution with <xsl:for-each> selecting a key and then using the position() function. This works fine for the numbers, but now I get a problem with the sub-sections.
Instead of selecting just the visible sub-sections of each section, in each section all the documents visible sub-sections are selected and the result looks like this:
1. My section
1.1 My first sub-section
1.2 My third sub-section
1.3 Another sub-section
2. My second section
2.1 My first sub-section
2.2 My third sub-section
2.3 Another sub-section
This is the xslt code:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:key name="myKey1" match="Sect1" use="@visible" />
<xsl:key name="myKey2" match="Sect2" use="@visible" />
<xsl:template match="/">
<HTML>
<HEAD>
<TITLE><xsl:value-of select="./Chapter/Title" /></TITLE>
</HEAD>
<BODY>
<xsl:apply-templates select="//Chapter"/>
</BODY>
</HTML>
</xsl:template>
<xsl:template match= "Chapter">
<xsl:for-each select = "key('myKey1','True')" >
<xsl:apply-templates select=".">
<xsl:with-param name="CounterSect1p" select="position()"/>
</xsl:apply-templates>
</xsl:for-each>
</xsl:template>
<xsl:template match= "Sect1">
<xsl:param name="CounterSect1p"/>
<p><b>
<xsl:number value="$CounterSect1p" format="1. " />
<xsl:value-of select="Title"/>
</b></p>
<xsl:for-each select = "key('myKey2','True')">
<xsl:apply-templates select=".">
<xsl:with-param name="CounterSect1p" select="$CounterSect1p"/>
<xsl:with-param name="CounterSect2p" select="position()"/>
</xsl:apply-templates>
</xsl:for-each>
</xsl:template>
<xsl:template match= "Sect2">
<xsl:param name="CounterSect1p"/>
<xsl:param name="CounterSect2p"/>
<p>
<xsl:number value="$CounterSect1p" format="1." />
<xsl:number value="$CounterSect2p" format="1 " />
<xsl:value-of select="Title"/>
</p>
</xsl:template>
</xsl:stylesheet>
I suppose the problem lies somewhere with the key() function in:
<xsl:for-each select = "key('myKey2','True')">
Could anyone please give me a hint how to apply the key() function only to child elements of the element I'm in? Or is the problem somewhere else?
Thank you,
Thomas
<xsl:for-each> and key() - help needed
