About the DITAVAL document
A DITAVAL document specifies a set of rules that defines which elements to include, exclude, or flag.
The markup for DITAVAL documents provides a standard way to define all conditional processing that is associated with the DITA specification.
- Defines a rendering behavior for an attribute and value
pair, for example,
audience="novice". - Defines a default behavior for a conditional processing attribute, such as
defining a default rendering behavior of exclude for the
@deliveryTarget. With that default, any@deliveryTargetvalue not otherwise defined in the document uses that default behavior of exclude. - Defines a default behavior for all conditional processing attributes, such as defining a default rendering behavior of exclude. With that default, any conditional-processing attribute not otherwise defined in the document uses that default behavior of exclude.
While the DITAVAL markup is not part of the DITA topic or map vocabulary and cannot be specialized, the XML itself is part of the specification. See DITAVAL elements for details.
The topic (or another archSpec topic) needs to include the following information:
Processors can implement default behaviors for flagging. This might include alternate text to indicate the start and end points of revised content or stylistic formatting when no specific flagging behavior is specified.
Ideally, I'd like this topic to provide a more detailed overview of what can be done with a DITAVAL document. What we say immediately above is technically accurate, but it largely restates what we have in the element-reference topics, rather than providing a good conceptual overview with supporting details. Given the complexity of conditional processing, I think that is what we need here.
<prop>or<revprop>element@outputclassattribute, with the value specified in the<prop>(or revprop?) element using@add-outputclass