3.1.5.1.10 attributedef

The <attributedef> element specifies the attribute to which a set of controlled values from a subject scheme map are to be applied.

Contains

Doctype	Content model
subjectScheme	( (data or data-about ) (any number) )

Contained by

Doctype	Content model
subjectScheme	enumerationdef

Inheritance

- topic/data subjectScheme/attributedef

Example

In this example, enumerations are specified for the platform and otherprops attributes. Note that the enumeration identifies a category of values; the values within the category are valid, while the category itself is not a valid value. For example, in the code sample here, the platform attribute is associated with the enumeration for the category "os"; all values within the "os" category are thus valid on the platform attribute, while the value "os" itself is not.

<subjectScheme>
  <!-- Pull in a scheme that defines unix OS values -->
  <schemeref href="unixOS.ditamap"/>
  <!-- Define new OS values that are merged with those in the unixOS scheme -->
  <subjectdef keys="os">
    <subjectdef keys="linux"/>
    <subjectdef keys="mswin"/>
    <subjectdef keys="zos"/>
  </subjectdef>
  <!-- Define application values -->
  <subjectdef keys="app" navtitle="Applications">
    <subjectdef keys="apacheserv" href="subject/apache.dita"/>
    <subjectdef keys="mysql"      href="subject/sql.dita"/>
  </subjectdef>

  <!-- Define an enumeration of the platform attribute, equal to
       each value in the OS subject. This makes the following values
       valid for the platform attribute: linux, mswin, zos -->
  <enumerationdef>
    <attributedef name="platform"/>
    <subjectdef keyref="os"/>
  </enumerationdef>
  <!-- Define an enumeration of the otherprops attribute, equal to
       each value in the application subjects.
       This makes the following values valid for the otherprops attribute:
       apacheserv, mysql -->
  <enumerationdef>
    <attributedef name="otherprops"/>
    <subjectdef keyref="app"/>
  </enumerationdef>
</subjectScheme>

Attributes

Name	Description	Data Type	Default Value	Required?
name	Defines an attribute that will take a set of enumerated values.	CDATA	#REQUIRED	Yes
id-atts attribute group (id, conref, conrefend, conaction, conkeyref)	A set of related attributes, described in 3.4.1.4 id-atts attribute group
status	The modification status of the current element.	new \| changed \| deleted \| unchanged \| -dita-use-conref-target	#IMPLIED	No
translate	Indicates whether the content of the element should be translated or not. The DITA architectural specification contains a list of each OASIS DITA element and its common processing default for the translate value.	yes \| no \| -dita-use-conref-target	#IMPLIED	No
base	A generic attribute that has no specific purpose. It is intended to act as a base for specialized attributes that have a simple value syntax like the conditional processing attributes (one or more alphanumeric values separated by whitespace), but is not itself a filtering or flagging attribute.	CDATA	#IMPLIED	No
global-atts attribute group (xtrf, xtrc)	A set of related attributes, described in 3.4.1.2 global-atts attribute group
class, outputclass	Common attributes described in 3.4.1.9 Other common DITA attributes