Appendix B. How did you do that other thing?

Using extended links with linkbases allows you to implement out-of-band linking. The DocBook markup on the “No, really, how?” page for the list item about linkbases is:

<listitem>
<para>Resolve XLink <emphasis>linkbases</emphasis>
</para>
</listitem>

Conspicuous by its absence is any kind of linking markup.

The link is loaded from an external linkbase:

<extendedlink xmlns:xlink="http://www.w3.org/1999/xlink"
              xlink:type="extended">
<locator xlink:title="Linkbases"
  xlink:label="target"
  xlink:href="https://www.w3.org/TR/xlink11/#reltophysloc"
  xlink:type="locator"/>
<locator xlink:label="source"
  xlink:href="xmlns(db=http%3a//docbook.org/ns/docbook)
              xpath(//db:emphasis%5b. = 'linkbases'%5d)"
  xlink:type="locator"/>
<arc xlink:to="target" xlink:from="source" xlink:type="arc"/>
</extendedlink>

Appendix B. How did you do that other thing?

Using extended links with linkbases allows you to implement out-of-band linking. The DocBook markup on the “No, really, how?” page for the list item about linkbases is:

<listitem>
<para>Resolve XLink <emphasis>linkbases</emphasis>
</para>
</listitem>

Conspicuous by its absence is any kind of linking markup.

The link is loaded from an external linkbase:

<extendedlink xmlns:xlink="http://www.w3.org/1999/xlink"
              xlink:type="extended">
<locator xlink:title="Linkbases"
  xlink:label="target"
  xlink:href="https://www.w3.org/TR/xlink11/#reltophysloc"
  xlink:type="locator"/>
<locator xlink:label="source"
  xlink:href="xmlns(db=http%3a//docbook.org/ns/docbook)
              xpath(//db:emphasis%5b. = 'linkbases'%5d)"
  xlink:type="locator"/>
<arc xlink:to="target" xlink:from="source" xlink:type="arc"/>
</extendedlink>