Re: [docbook-apps] Best way to implement author-specified keep-with-next options?

["Bob Stayton" <bobs@sagehill.net>]

Hi,
I think you will find that your solution works in some locations but not 
others.  Since the PI generates an <xsl:attribute> element, it must be 
processed right after an output element is opened but before any content is 
added to it.  In your para example it will work, but most likely in other 
places it will generate an error message and not work because the template 
already generated some content before it does xsl:apply-templates (which 
triggers the processing of the PI).

I don't think there is a general solution for using a processing 
instruction to insert a keep (or any other) property.  But if it works in 
the situations you need, then your implementation is fine.

Bob Stayton
Sagehill Enterprises
DocBook Consulting
bobs@sagehill.net


----- Original Message ----- 
From: "Johnson Earls" <darkfoxprime@yahoo.com>
To: <docbook-apps@lists.oasis-open.org>
Sent: Wednesday, July 25, 2007 3:06 PM
Subject: [docbook-apps] Best way to implement author-specified 
keep-with-next options?


> Hello!
>
>    In the document I'm working on, I'm finding a need to specify the
> keep-with-next option in several places.  Since docbook-xsl 1.73.0
> doesn't seem to provide this by itself, I came up with the following
> simplistic approach.  Is this the "right" way to do things?
>
> <!-- ---------------- in FO customization layer: ---------------- -->
>    <!--
>        Custom processing instruction target:  NeoBook
>    -->
>    <xsl:template match="processing-instruction('NeoBook')">
>        <xsl:variable name="keep.with.next">
>            <xsl:call-template name="pi-attribute">
>                <xsl:with-param name="pis" select="." />
>                <xsl:with-param name="attribute"
> select="'keep-with-next'" />
>            </xsl:call-template>
>        </xsl:variable>
>        <xsl:if test="$keep.with.next != ''">
>            <xsl:attribute name="keep-with-next.within-column">
>                <xsl:value-of select="$keep.with.next" />
>            </xsl:attribute>
>        </xsl:if>
>    </xsl:template>
>
> <!-- ---------------- in document: ---------------- -->
>
>    <para><?NeoBook keep-with-next="always"?>
>        text of paragraph goes here
>    </para>
>    <para>
>        The previous paragraph will always be kept
>        with this paragraph.
>    </para>
>
> <!-- ---------------- ---------------- -->
>
> Thanks in advance!
> - Johnson
>
>
>
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