Hi Eric,
The page numbers are not handled by the simple.xlink template,
but by the template in fo/xref.xsl that matches on xref.
<xsl:apply-templates
select="$target" mode="page.citation">
It is trying to process the title element (the value of
$target) in mode="page.citation". It generates the correct code, but the
id for title is not in the fo output, so the xsl-fo processor cannot find the id
to get the page number. So you will need to create a template like this
(untested) to generate the page citation for the parent of title:
<xsl:template match="title"
mode="page.citation">
<xsl:apply-templates select="parent::*"
mode="page.citation"/>
</xsl:template>
I think that will work.
Bob Stayton
Sagehill Enterprises
From: Eric Nordlund
Sent: Friday, April 05, 2013 11:11 AM
To: Bob
Stayton ;
Subject: RE: [docbook-apps] xrefs to <title> elements don't
work
Thanks Bob. Your suggested style
sheet customization worked for our documents; the links work and the correct
text is displayed for the xref.
One thing that I noticed is that
the page.citation dows not work for the titles, however. This isn?t a big deal
for me because I just turn them off on title xrefs, but is there a way to get
that template to work with title xrefs the same way that they would for section
xrefs? Right now they show up as ?<title text> on
page
.?
Eric
From: Bob Stayton
[mailto:]
Sent: Friday, April 05, 2013 9:18
AM
To: Eric Nordlund;
Subject: Re: [docbook-apps] xrefs to
<title> elements don't work
Hi
Eric,
Actually,
creating an xref to a title used to work in the stylesheets. Currently it
gets the generated text right, but the link is to the id of the title element,
and most title elements do not output an @id attribute, so the link
fails. It seems this feature was broken some time ago when the xref
templates were rewritten to support universal linking in DocBook 5.
This
customization of the template named 'simple.xlink' from fo/inline.xsl fixes the
id problem. It only corrects the problem for @linkend references, not for
@xlink:href references used in universal linking, but it should suffice for
your needs. Search for 'linkend.candidate' to see where I made the
changes.
<xsl:template
name="simple.xlink">
<xsl:param name="node"
select="."/>
<xsl:param name="content">
<xsl:apply-templates/>
</xsl:param>
<xsl:param name="linkend.candidate" select="$node/@linkend"/>
<xsl:param name="xhref" select="$node/@xlink:href"/>
<xsl:choose>
<xsl:when
test="$xhref
and (not($node/@xlink:type) or
$node/@xlink:type='simple')">
<!-- Is it a local idref? -->
<xsl:variable
name="is.idref">
<xsl:choose>
<!-- if the href starts with # and does not contain an "("
-->
<!-- or if
the href starts with #xpointer(id(, it's just an ID
-->
<xsl:when
test="starts-with($xhref,'#')
and
(not(contains($xhref,'('))
or
starts-with($xhref,
'#xpointer(id('))">1</xsl:when>
<xsl:otherwise>0</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<!-- Is it an olink ? -->
<xsl:variable
name="is.olink">
<xsl:choose>
<!-- If xlink:role="http://docbook.org/xlink/role/olink"
-->
<!-- and if
the href contains #
-->
<xsl:when
test="contains($xhref,'#')
and
@xlink:role =
$xolink.role">1</xsl:when>
<xsl:otherwise>0</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:choose>
<xsl:when
test="$is.olink =
1">
<xsl:call-template
name="olink">
<xsl:with-param name="content"
select="$content"/>
</xsl:call-template>
</xsl:when>
<xsl:when test="$is.idref = 1">
<xsl:variable
name="idref">
<xsl:call-template
name="xpointer.idref">
<xsl:with-param name="xpointer"
select="$xhref"/>
</xsl:call-template>
</xsl:variable>
<xsl:variable name="targets"
select="key('id',$idref)"/>
<xsl:variable name="target" select="$targets[1]"/>
<xsl:call-template
name="check.id.unique">
<xsl:with-param name="linkend"
select="$idref"/>
</xsl:call-template>
<xsl:choose>
<xsl:when test="count($target) =
0">
<xsl:message>
<xsl:text>XLink to nonexistent id:
</xsl:text>
<xsl:value-of
select="$idref"/>
</xsl:message>
<xsl:copy-of
select="$content"/>
</xsl:when>
<xsl:otherwise>
<fo:basic-link
internal-destination="{$idref}">
<xsl:apply-templates select="."
mode="simple.xlink.properties"/>
<xsl:copy-of
select="$content"/>
</fo:basic-link>
</xsl:otherwise>
</xsl:choose>
</xsl:when>
<!-- otherwise it's a URI
-->
<xsl:otherwise>
<fo:basic-link
external-destination="url({$xhref})">
<xsl:apply-templates select="."
mode="simple.xlink.properties"/>
<xsl:copy-of
select="$content"/>
</fo:basic-link>
<!-- * Call the template for determining whether the URL for this
-->
<!-- *
hyperlink is displayed, and how to display it (either inline or
-->
<!-- * as a
numbered footnote).
-->
<xsl:call-template
name="hyperlink.url.display">
<xsl:with-param name="url"
select="$xhref"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:when>
<xsl:when test="$linkend.candidate">
<xsl:variable name="targets.candidate"
select="key('id',$linkend.candidate)"/>
<xsl:variable name="target.candidate"
select="$targets.candidate[1]"/>
<xsl:variable
name="target.id">
<xsl:choose>
<xsl:when test="$target.candidate/self::title and
$target.candidate/parent::*/@id">
<xsl:value-of
select="$target.candidate/parent::*/@id"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$target.candidate/@id"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:variable name="targets"
select="key('id',$target.id)"/>
<xsl:variable name="target"
select="$targets[1]"/>
<xsl:variable
name="linkend" select="$target/@id"/>
<xsl:call-template
name="check.id.unique">
<xsl:with-param name="linkend"
select="$linkend"/>
</xsl:call-template>
<xsl:choose>
<xsl:when
test="count($target) =
0">
<xsl:message>
<xsl:text>XLink to nonexistent id:
</xsl:text>
<xsl:value-of
select="$linkend"/>
</xsl:message>
<xsl:copy-of
select="$content"/>
</xsl:when>
<xsl:otherwise>
<fo:basic-link
internal-destination="{$linkend}">
<xsl:apply-templates select="."
mode="simple.xlink.properties"/>
<xsl:copy-of
select="$content"/>
</fo:basic-link>
</xsl:otherwise>
</xsl:choose>
</xsl:when>
<xsl:otherwise>
<xsl:copy-of
select="$content"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
Bob
Stayton
Sagehill Enterprises
From: Eric Nordlund
Sent: Thursday, April 04,
2013 6:00 PM
To:
Subject: [docbook-apps]
xrefs to <title> elements don't
work
My company has a hundred or so books that were authored with
Arbortext?s graphic XML editor. I?m having a problem processing these books with
XSL-FO because so many of the xrefs in these books are to title elements instead
of the parent procedure, section, example, table, etc., elements.
Is there a way to make these work in the XSL-FO output? I was
thinking I could have a template that could recognize when an xref/@linkend
pointed to the id of a title and then change the linkend to the id of the
title?s parent element, but I don?t really know how to do that.
Is there another way to do what I need to do?
Eric Nordlund
Customer
Documentation and Training
Cray
Inc.
901 5th
Ave
Seattle, WA
98164
(206)701-2232
