Re: [xsl] complex positioning problem

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

At 01:26 PM 10/29/2004, you wrote:
> > I'd try doing this by first processing the entire document expanding my 
> > citations into an (ad-hoc, locally-namespaced) markup format that 
> > provides each citation or footnote reference with whatever information it 
> > needs apart from the first/subsequent rule (that is, as if they were 
> > thence to be rendered all alike irrespective of their positions in the 
> > final list), and then in a second pass introduce the Ibid/Idem, op.cit., 
> > etc. based on their positions relative to one another. The rest of the 
> > second pass could be an identity transform otherwise, assuming there's 
> > nothing else it is useful for it to do.
>
> I guess my question is how to handle that last pass; the "based on their 
> positions relative to one another" bit.

Well in that pass, their relative positions are determinable in reference 
to "document order". So, for example, they could be collected in a variable 
in which position() could be checked, or even axes used to look at the 
immediate preceding one, etc.

Of course, XSLT 2.0 / XPath 2.0 also lets you construct sequences, which 
could provide an even more direct way to do this, though perhaps not quite 
as clean.

I append your code and a bit of spec from earlier in case anyone has time 
today to try it (using either or any approach), noting that this sample 
should be extended to exhibit the requirement:

<?xml version="1.0" encoding="utf-8"?>
<article xmlns="http://docbook.org/docbook-ng";>
  <info>
    <title>Test</title>
  </info>
  <section>
    <info>
      <title>Introduction</title>
    </info>
    <para>Some citations: <citation><biblioref linkend="one"/><biblioref
    linkend="two"/></citation></para>
  </section>
  <bibliography>
    <modsCollection xmlns="http://www.loc.gov/mods/v3";>
      <mods ID="one">
        <name type="personal">
          <namePart type="given">John</namePart>
          <namePart type="family">Doe</namePart>
          <role>
            <roleTerm type="text">author</roleTerm>
          </role>
        </name>
        <titleInfo>
          <title>Some Title</title>
        </titleInfo>
        <originInfo>
          <dateIssued>1999</dateIssued>
        </originInfo>
      </mods>
      <mods ID="two">
        <name type="personal">
          <namePart type="given">John</namePart>
          <namePart type="family">Doe</namePart>
          <role>
            <roleTerm type="text">author</roleTerm>
          </role>
        </name>
        <titleInfo>
          <title>Another Title</title>
        </titleInfo>
        <originInfo>
          <dateIssued>1999</dateIssued>
        </originInfo>
      </mods>
    </modsCollection>
  </bibliography>
</article>

> The most difficult one is note (footnote/endnote) style, whereby rendering 
> of citations is determined by their relative position within the 
> text.  For example, we have:
>
> 1)  First/subsequent.
>
> On the first occurrence of a citation reference, we have one 
> rendering.  On all subsequent, we have another (shorter).
>
> 2)  Ibid/Idem, op.cit.
>
> When a parameter is switched on, then if one has the same single citation 
> repeated immediately subsequent, then it gets rendered as "Ibid", if the 
> same group of citations repeat, it's "Idem".

Cheers,
Wendell

Cheers,
Wendell


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Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
Mulberry Technologies, Inc.                http://www.mulberrytech.com
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