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Subject: RE: [docbook-apps] Re: [docbook] automated keywords and chunking

Tim  may have to worry about chunking and the chunking settings,
depending on his situation. Say you chunk everything. If you have a
chapter with several subsections, then the first chunk contains the
chapter's toc and any content before the first section. You probably
don't want that chunk's html page to have all of the indexterms in the
all of the child sections. Or if you stop chunking at a certain depth,
you DO want the section at which you stop chunking to contain keywords
for the indexterms of all its child sections. If he uses <?bjhtml
stop-chunking?> to stop chunking at arbitrary places, then that would
have to be addressed too.

I wanted to do something similar to what Tim is asking for, but didn't
go to the trouble of addressing all those because it made my head hurt. 

If I recall correctly, the following tries to assemble a keywordset
unless there already is a keywordset and gets all the indexterms in the
chapter or section but not get any from any child sections. It also
removes duplicate index entries.

Anyway, perhaps the following can be a starting point or source of


  <xsl:template name="user.head.content">
	<xsl:call-template name="keywordset"/>

  <xsl:template name="keywordset">
	<xsl:if test="not(self::book) and not(self::part) and
not(./*/keywordset) and (./*[not(starts-with(local-name(.),'sect')) and
not(self::chapter)]//indexterm or ./indexterm)">
	  <xsl:variable name="indexterms">
		<!-- Get all the indexterms in this section/chapter only
(i.e. not in child sections -->
	  <xsl:variable name="indexterms-unique">
select="exslt:node-set($indexterms)/*[not(. = preceding-sibling::*)]">
		  <xsl:value-of select="normalize-space(.)"/><xsl:if
test="not(position() =  last())">, </xsl:if>
	  <xsl:if test="not($indexterms-unique = '')">
		<meta name="keywords">
		  <xsl:attribute name="content">
			<xsl:value-of select="$indexterms-unique"/>

> -----Original Message-----
> From: Bob Stayton [mailto:bobs@sagehill.net] 
> Sent: Wednesday, September 23, 2009 11:11 AM
> To: DocBook Apps; Tim Arnold
> Subject: [docbook-apps] Re: [docbook] automated keywords and chunking
> [moving this over to docbook-apps mailing list where 
> stylesheet issues are discussed]
> By keywords I presume you mean generating <meta 
> name="keywords"> in the HEAD element of each chunks?  If so, 
> then you don't have to mess with the chunking machinery, you 
> can use the placeholder template named 'user.head.content' 
> that is available for inserting custom content.  See:
> http://www.sagehill.net/docbookxsl/HtmlHead.html
> That template is called with the node being chunked as the 
> context node, so you should be able to select 
> descendant::indexterm/primary elements and process them into 
> the value of the meta element.
> Bob Stayton
> Sagehill Enterprises
> bobs@sagehill.net
> ----- Original Message -----
> From: "Tim Arnold" <a_jtim@bellsouth.net>
> To: <docbook@lists.oasis-open.org>
> Sent: Tuesday, September 22, 2009 4:35 PM
> Subject: [docbook] automated keywords and chunking
> > Hi,
> > I'm using DocBook 5 and the html chunking stylesheets. I'd like to 
> > automatically create keywords for each output file that 
> consist of the 
> > primary index terms in that file.  I can manage that in 
> postprocessing 
> > using Python and lxml, but I wanted to ask here to see if 
> this has  been 
> > done before. It seems like something people might like to 
> do, but  after 
> > looking at the chunking code and reading about it, it 
> sounds  like it 
> > might be pretty complicated to implement.
> >
> > Any ideas on this?
> > thanks,
> > --Tim Arnold
> >
> >
> > 
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