Re: [docbook] Ibids and op cits

[Peter Flynn <peter@silmaril.ie>]

On 07/01/2013 10:20 AM, Brad Scott wrote:
> Hello everyone
>
> How do you tend to deal with "Ibid" and "op cit" references?

Some BiBTeX or biblatex styles do this themselves. I originally relied 
on one of them that detected such things, but the journal style 
requirements changed, and I haven't converted the process to use the new 
biblatex style yet, so right now it's done in the XSLT. The following is 
untested, as I have redacted a whole heap of internal stuff which would 
just clutter an example.

  <xsl:template match="db:biblioref[@endterm]">
    <xsl:choose>
      <!-- if the previous citation is to the exact same place in the
           same work as the current citation -->
      <xsl:when
        test="@endterm=preceding::db:biblioref/@endterm and
              @units=preceding::db:biblioref/@units and
              @start=preceding::db:biblioref/@start and
              ((@end and @end=preceding::db:biblioref/@end)
              or (not(@end) and not(preceding::db:biblioref/@end)))">
        <xsl:text>\textit{Loc.~cit.}</xsl:text>
      </xsl:when>
      <!-- if the first author of the immediately preceding citation
           is the same as the first author of the current citation -->
      <xsl:when test="//db:biblioentry

[@xml:id=current()/preceding::db:biblioref[1]/@endterm]
                      [descendant::author[1]/@xml:id
                      =
                      //db:biblioentry[@xml:id=current()/@endterm]
                      /descendant::author[1]/@xml:id]">
        <!-- code for testing multi-authored works
             is left as an exercise for the reader -->
        <xsl:choose>
          <!-- detect gender from initial letter of authorID -->
          <xsl:when test="starts-with(//db:biblioentry
                          [@xml:id=current()/@endterm]
                          /descendant::author[1]/@xml:id,'F')">
            <xsl:text>\textit(Eadem}, </xsl:text>
          </xsl:when>
          <xsl:otherwise>
            <xsl:text>\textit(Idem}, </xsl:text>
          </xsl:otherwise>
        </xsl:choose>
        <xsl:call-template name="makeref">
          <xsl:with-param name="format" value="'omitauthor'"/>
        </xsl:call-template>
      </xsl:when>
      <!-- if the immediately preceding citation is the same work -->
      <xsl:when 
test="preceding::db:biblioref[1][@endterm=current()/@endterm]">
        <xsl:text>\textit{Ibid.}</xsl:text>
        <xsl:call-template name="makeref">
          <xsl:with-param name="format" value="'location'"/>
        </xsl:call-template>
      </xsl:when>
      <!-- if there was any previous reference to this work -->
      <xsl:when 
test="preceding::db:biblioref[@endterm=current()/@endterm]">
        <xsl:call-template name="makeref">
          <xsl:with-param name="format" value="'author'"/>
        </xsl:call-template>
        <xsl:text>, \textit{op.~cit.}</xsl:text>
      </xsl:when>
      <!-- otherwise is gets the full treatment -->
      <xsl:otherwise>
        <xsl:call-template name="makeref"/>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:template>

It doesn't handle multiple citations in the same biblioref element yet: 
I need to redefine @endterm to be IDREFS (as it should have been!)

///Peter