Re: DOCBOOK-APPS: attribute sets

[Bob Stayton <bobs@caldera.com>]

On Thu, Oct 10, 2002 at 06:04:03PM -0400, Daniel Veillard wrote:
> On Wed, Oct 09, 2002 at 04:48:06PM -0500, Dennis Grace wrote:
> > 
> > Okay, I guess I don't get it. How do I make use of the attribute-sets in a
> > customization layer? I tried this:
> > 
> > <xsl:attribute-set name="admonition.title.properties">
> >    <xsl:attribute name="font-size">10pt</xsl:attribute>
> >    <xsl:attribute name="font-weight">bold</xsl:attribute>
> >    <xsl:attribute name="hyphenate">false</xsl:attribute>
> >    <xsl:attribute name
> > ="keep-with-next.within-column">always</xsl:attribute>
> > </xsl:attribute-set>
> > 
> > And it did nothing. If I make the font-size change directly to the
> > param.xsl file, that works. All my param settings work, but the
> > attribute-sets don't. Am I missing an important step?
> > 
> > DocBook XSL 1.55.0
> > xsltproc (libxml2 2-4-24/libxslt 1.0.20)
> 
>   hum okay, that's the latests.

Some more data:
I had two older systems that I tested this on, and
the merge of the attribute sets worked for:

libxml2  20404
libxslt  10004

libxml2  20412
libxslt  10009

But it failed to merge when I used:

libxml2  20424
libxslt  10020

Sorry I don't have more versions, but somewhere along the
development path it stopped working.

> I though xsl:attribute-set was okay in xsltproc (there is a good test case
> in the libxslt regression tests tests/general/bug-80.xsl ). I don't
> understand why this would not work, maybe because it extends a set present
> in an imported stylesheet or something like that. What happen if you move
> this block from your customization layer to param.xsl ?

That's not a good test.
Then you will have two attribute-sets with the same name
and same import precedence, and who knows what you will get.  8^)

I can confirm this behavior on these versions with this
docbook-free test (I include it because the docbook mailing lists
supposedly strip out attachements).

############# the main stylesheet
xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
                version="1.0">

<xsl:attribute-set name="admonition.title.properties">
  <xsl:attribute name="font-size">14pt</xsl:attribute>
  <xsl:attribute name="font-family">Garamond</xsl:attribute>
</xsl:attribute-set>

<xsl:template match="elem">
        <foo xsl:use-attribute-sets="admonition.title.properties">
                <xsl:text>Some literal text for fun</xsl:text>
        </foo>
</xsl:template>


</xsl:stylesheet>

############# the importing stylesheet
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
                version="1.0">

<xsl:import href="attset.xsl"/>

<xsl:attribute-set name="admonition.title.properties">
  <xsl:attribute name="font-size">10pt</xsl:attribute>
</xsl:attribute-set>


</xsl:stylesheet>

############# the test file
<?xml version="1.0"?>
<elem/>

##########################
When you process the file with the importing stylesheet,
for the older versions of xsltproc my output is:

<?xml version="1.0"?>
<foo font-size="10pt" font-family="Garamond">Some literal text for fun</foo>

The the latest version I tested, I got:

<?xml version="1.0"?>
<foo font-size="14pt" font-family="Garamond">Some literal text for fun</foo>

-- 

Bob Stayton                                 400 Encinal Street
Publications Architect                      Santa Cruz, CA  95060
Technical Publications                      voice: (831) 427-7796
Caldera International, Inc.                 fax:   (831) 429-1887
                                            email: bobs@caldera.com