Re: re: [docbook-apps] Accessibility: adding scope attribute to HTML output

[michael mclaughlin <m_mclaug@yahoo.co.uk>]

Thanks Bob.
By adding the role attribute to my table, I can get things working. 
I add a role="col" or role="row" attribute to the required table entry elements. They are then transformed to scope="row" or scope="col" in the HTML output.

----
<xsl:template match="thead/row/entry" mode="class.attribute">
     <xsl:attribute name="scope">
        <xsl:value-of select="@role"/>
    </xsl:attribute>
</xsl:template>

<xsl:template match="tbody/row/entry[1]" mode="class.attribute">
   <xsl:attribute name="scope">
    <xsl:value-of select="@role"/>
   </xsl:attribute>
</xsl:template>
----

The only drawback is that I need to rework my XML source. I will have to sort out a reg exp that will add the role attribute to some of my massive tables.


--- On Fri, 23/9/11, Bob Stayton <bobs@sagehill.net> wrote:

> From: Bob Stayton <bobs@sagehill.net>
> Subject: Re: re: [docbook-apps] Accessibility: adding scope attribute to HTML output
> To: "mike 675" <m_mclaug@yahoo.co.uk>, docbook-apps@lists.oasis-open.org
> Date: Friday, 23 September, 2011, 22:03
> Hi Mike,
> It seems that the para element is an exception for using
> that mode because it also has 
> the feature of passing along a role attribute as a class
> attribute.  If the para in 
> question has a role attribute (of any value) and the
> $para.propagates.style is set to 
> 1 (the default), then your template will work. The mode is
> not used otherwise.  I 
> think this is a bit of inconsistent behavior that should be
> looked at more closely by 
> the developers.  Could you please file a bug report on
> the SourceForge site to get 
> this straightened out?
> 
> The entry element has the same story, since it also has an
> $entry.propagates.style 
> attribute.
> 
> It did work for match="section" when I tried it, adding the
> width attribute to the 
> section's div element in the output.
> 
> BTW, this line in your template does nothing useful.
> 
>     <xsl:param name="width"
> select="local-name(.)"/>
> 
> It creates a template parameter but never uses it. Setting
> width to a value of 
> "section" is not a valid value.  I think you modeled
> it on the class param where a 
> value of "section" does make sense as a default.
> 
> Bob Stayton
> Sagehill Enterprises
> bobs@sagehill.net
> 
> 
> ----- Original Message ----- 
> From: "mike 675" <m_mclaug@yahoo.co.uk>
> To: <docbook-apps@lists.oasis-open.org>
> Sent: Wednesday, September 21, 2011 1:28 AM
> Subject: Re: re: [docbook-apps] Accessibility: adding scope
> attribute to HTML output
> 
> 
> >
> > I can't seem to get this working consistently.
> >
> > I would expect the following customization to change
> all <para> elements to
> > <p width="50px"> in the HTML output.
> > But it has no effect.
> >
> > <xsl:template  match="para"
> mode="class.attribute">
> >          <xsl:param
> name="width" select="local-name(.)"/>
> >         
>    <xsl:attribute
> name="width">50px</xsl:attribute>
> >    </xsl:template>
> >
> > Neither does using "section" as the match.
> > Nor informaltable/tgroup/thead/row/entry, which is one
> of the elements I
> > want to change.
> > However, if I match for "itemizedlist", 50px turns up
> in the <ul> HTML
> > element.
> >
> > Is it OK to use a simple xpath, such as "section" for
> matching elements?
> >
> >
> > Robert Nagle wrote:
> >>
> >> 1. Yes, all you have to do is add it to your
> customization layer. You
> >> will need to replace caption/para with an xpath
> statement that
> >> corresponds to the table  element(s) you want
> to customize. (and
> >> remember if you are not  using the vanilla
> docbook xsl but  the
> >> namespace xsl (i.e., docbook-ns), you will need to
> preface everything
> >> with d: in the xpath statement. So caption/para
> would be
> >> d:caption/d:para ).
> >>
> >> 2.  For my example at
> >> http://lists.oasis-open.org/archives/docbook-apps/201108/msg00091.html
> >> , my source code  would say  either:
> >>
> >> <caption> <para> Hello </para>
> </caption>
> >>
> >> Or
> >>
> >> <caption> <para role="50x"> Hello
> </para> <caption>
> >>
> >> Your output after you applied the transformation
> would be (I think)
> >>
> >> <div class="caption">
> >> <p width="50px">Hello
> </p></div>
> >>
> >> I gave two examples. In one example I made the
> assumption that you
> >> would hardcode the values of width in the 
> XSL customization layer --
> >> so you wouldn't need to put it in the xml source
> code. In the other
> >> example, I assumed that you would grab the values
> from the role
> >> attribute in the <para> element in source.
> >>
> >> However, if the value of the  scope attribute
> is always going to be
> >> "col", I don't see any reason why you couldn't
> hard code it in the XSL
> >> customization layer. others may disagree about
> this.
> >>
> >> -- 
> >> ---------- Forwarded message ----------
> >> From: mike 675 <m_mclaug@yahoo.co.uk>
> >> To: docbook-apps@lists.oasis-open.org
> >> Date: Mon, 19 Sep 2011 01:58:03 -0700 (PDT)
> >> Subject: [docbook-apps] Accessibility: adding
> scope attribute to HTML
> >> output
> >>
> >> To meet accessibility requirements, we need to add
> the scope attribute to
> >> the
> >> HTML output for our tables.
> >>
> >> Our tables are marked up in DocBook XML, CALS
> style.
> >>
> >> Every <th> needs to be <th
> scope="col">
> >>
> >> The first <td> in a <tr> needs to be
> <td scope="row">
> >>
> >> Any ideas on where to start on this.
> >> I guess I need to cusomize the html/table.xsl
> stylesheet.
> >>
> >>
> >>
> >>
> >> Robert Nagle
> >> 6121 Winsome Ln #56C, Houston TX 77057-5581
> >> (H) 713 893 3424/ (W) 832-251-7522 Carbon Neutral
> Since Jan 2010
> >> http://www.robertnagle.info
> >>
> >>
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> >>
> >>
> >>
> >
> > -- 
> > View this message in context: 
> > http://old.nabble.com/Accessibility%3A-adding-scope-attribute-to-HTML-output-tp32493408p32503723.html
> > Sent from the docbook apps mailing list archive at
> Nabble.com.
> >
> >
> >
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