defaultSubject
The <defaultSubject> element is used
within an attribute enumeration to set the default value for that
attribute in cases where no value is specified on the attribute. The
default subject must be one of the controlled values within the categories
specified for the attribute.
Contains
Note
These models represent only the default document types distributed by OASIS.
Actual content models will differ with each new document type.
| Doctype | Content model |
|---|---|
| subjectScheme | ( (data or data-about) (any number) ) |
Contained by
| Doctype | Content model |
|---|---|
| subjectScheme | enumerationdef |
Inheritance
- map/topicref subjectScheme/defaultSubject
Example
The following example declares that each of the four defined "os" values is valid within the platform attribute; if no value is specified, the default is "linux".
<subjectScheme>
<subjectdef keys="os">
<subjectdef keys="linux"/>
<subjectdef keys="mswin"/>
<subjectdef keys="zos"/>
<subjectdef keys="macos"/>
</subjectdef>
<enumerationdef>
<attributedef name="platform"/>
<defaultSubject keyref="linux"/>
<subjectdef keyref="os"/>
</enumerationdef>
</subjectScheme>Attributes
| Name | Description | Data Type | Default Value | Required? |
|---|---|---|---|---|
| navtitle | Specifies the title of the topic as it will appear in the navigation or tables of contents that are generated from the map. Beginning with DITA 1.2, the preferred way to specify the navigation title in a map is with the navtitle element, available inside the topicmeta element. | CDATA | #IMPLIED | No |
| href | A pointer to the resource represented by the <topicref>. See The href attribute for detailed information on supported values and processing implications. References to DITA content cannot be below the topic level: that is, you cannot reference individual elements inside a topic. References to content other than DITA topics should use the format attribute to identify the kind of resource being referenced. | CDATA | #IMPLIED | No |
| keys | Introduces one or more global identifiers for a resource referenced from a map. See The keys attribute for details on how to use the keys attribute. | NMTOKEN | #IMPLIED | No |
| processing-role | Describes the processing role of the referenced topic. The
processing default is "normal".
If the value is not specified locally, but
is specified on an ancestor, the value will cascade from the closest
ancestor.
|
(normal | resource-only | -dita-use-conref-target) | #IMPLIED | No |
| query | This attribute is deprecated. It may be removed in the future. | CDATA | #IMPLIED | No |
| copy-to | Use the copy-to attribute on the
<topicref> element to provide a different file name
for a particular instance of the topic in the map (for example, to separate out
the different versions of the topic, rather than combining them on output). The
links and navigation associated with that instance will point to a copy of the
topic with the file name you specified.
Use the <linktext> and <shortdesc> in the <topicref>'s <topicmeta> to provide a unique name and short description for the new copy. |
CDATA | #IMPLIED | No |
| type | Describes the target of a reference. See The type attribute for detailed information on supported values and processing implications. | CDATA | #IMPLIED | No |
| scope | The scope attribute identifies the closeness of the relationship between the current document and the target resource. See The scope attribute for more information on values. | (local | peer | external | -dita-use-conref-target) | #IMPLIED | No |
| locktitle | If locktitle is set to "yes", the
<navtitle> element or @navtitle attribute is used if it is present.
Otherwise, the navtitle is ignored and the navigation title is retrieved from
the referenced file.
NoteThe @navtitle attribute is
deprecated in favor of the <navtitle> element. When both a
<navtitle> element and a navtitle attribute are specified, the
<navtitle> element should be used.
|
(yes | no | -dita-use-conref-target) | #IMPLIED | No |
| format | The format attribute identifies the format of the resource being referenced. See The format attribute for details on supported values. | CDATA | #IMPLIED | No |
| toc | Specifies whether a topic appears in the table of contents (TOC). If the value is not specified locally, but is specified on an ancestor, the value will cascade from the closest ancestor. | (yes | no | -dita-use-conref-target) | #IMPLIED | No |
| univ-atts attribute group (includes select-atts, id-atts, and localization-atts groups) | A set of related attributes, described in univ-atts attribute group | |||
| global-atts attribute group (xtrf, xtrc) | A set of related attributes, described in global-atts attribute group | |||
| class, outputclass, keyref | Keyref provides a redirectable reference based on a key defined within a map. See The keyref attribute for information on using this attribute. Class and outputclass are described in Other common DITA attributes |