Re: [xsl] Extract footnotes

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

At 2007-11-03 12:24 +0530, J. S. Rawat wrote:
> Can anybody let me know how to extract "footnote" from paragraph and 
> write it to end of the section.

This is an exercise in my class for creating end notes from footnotes.

> Below is what I am trying to do
>
> Input
> <section>
> <para>111...<footnote label="1" id="f1"><para>First 
> fnt</para></footnote> 222... <footnote label="2" 
> id="f2"><para>second fnt</para></footnote> </para>
> <para>333...<footnote label="3" id="f3"><para>Third 
> fnt</para></footnote> ...</para>
> </section>
>
> Required Output
> <level>
> <para>111....222 ....  </para>
> <para>333... ...</para>
> <footnote label="1" id="f1"><para>First fnt</para></footnote>
> <footnote label="2" id="f2"><para>second fnt</para></footnote>
> <footnote label="3" id="f3"><para>Third fnt</para></footnote>
> </level>
>
> <xsl:template match="section">
> <level>
> <xsl:apply-templates/>
> <xsl:if test="descendant::*[self::footnote]">
> <xsl:apply-templates select="descendant::*[self::section//footnote]"/>
> </xsl:if>
> </level>
> </xsl:template>
>
> <xsl:template match="para">
> <xsl:copy>
> <xsl:apply-templates select="descendant::*[not(self::footnote)]"/>
> </xsl:copy>
> </xsl:template>

Your problem is trying to do too much imperatively rather than 
declaratively.  You are treating this like a programming language 
rather than a templating language.

BTW, your <xsl:if> isn't required because if there are no 
descendants, then nothing gets pushed.

Also, I feel your predicates are misleading and lengthy, and can be 
expressed far more succinctly.

In the solution below I'm using modes so that footnotes are handled 
in two different ways at two different times.  Note how I'm "letting 
things happen" with the template rules, rather than "forcing things to happen".

I hope this helps.

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

t:\ftemp>type rawat.xml
<section>
<para>111...<footnote label="1" id="f1"><para>First 
fnt</para></footnote> 222...
 <footnote label="2" id="f2"><para>second fnt</para></footnote> </para>
<para>333...<footnote label="3" id="f3"><para>Third 
fnt</para></footnote> ...</para>
</section>

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

<xsl:output indent="yes"/>

<xsl:template match="section">
  <level>
    <!--do the body of the section-->
    <xsl:apply-templates/>
    <!--do the end notes for the section-->
    <xsl:apply-templates select=".//footnote" mode="end-notes"/>
  </level>
</xsl:template>

<xsl:template match="footnote">
  <!--do nothing when first encountered-->
</xsl:template>

<xsl:template match="footnote" mode="end-notes">
  <xsl:copy>
    <xsl:apply-templates select="@*|node()"/>
  </xsl:copy>
</xsl:template>

<xsl:template match="@*|node()"><!--identity for all other nodes-->
  <xsl:copy>
    <xsl:apply-templates select="@*|node()"/>
  </xsl:copy>
</xsl:template>

</xsl:stylesheet>
t:\ftemp>xslt rawat.xml rawat.xsl con
<?xml version="1.0" encoding="utf-8"?>
<level>

   <para>111... 222...  </para>

   <para>333... ...</para>

   <footnote label="1" id="f1">
      <para>First fnt</para>
   </footnote>
   <footnote label="2" id="f2">
      <para>second fnt</para>
   </footnote>
   <footnote label="3" id="f3">
      <para>Third fnt</para>
   </footnote>
</level>
t:\ftemp>

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