conref step resolves conref attributes, processing only the DITA maps or topics that
use the @conref attribute. This step is implemented in XSLT.
The values of the
@id attribute on referenced content are changed as the elements are pulled
into the new locations. This ensures that the values of the
@id attribute within the referencing
topic remain unique.
@xrefattributes are updated so that they remain valid in the new location. For example, a referenced topic might include a section as in the following example:
@conrefattribute, the value of the
@idattribute on the
<fig>element is modified to ensure that it remains unique in the new context. At the same time, the
<xref>element is also modified so that it remains valid as a local reference. For example, if the referencing topic has an
@idset to "new_topic", then the conrefed element may look like this in the intermediate document.
In this case, the value of the
@id attribute on the
<fig> element has
been changed to a generated value of "d1e25". At the same time, the
<xref> element has
been updated to use that new generated ID, so that the cross reference remains valid.