Commonly referenced attributes

Several parts of a language reference are common between many locations, such as the descriptions for the selection and property attributes of DITA elements. These are described as sets to reduce unnecessary duplication of common information.

1. %display-atts; Display attributes is a parameter entity declaration in the topic DTD that includes attributes whose values may be used for affecting the display of a topic or its selection by search tools.
2. %global-atts; Debugging attributes, normally hidden from authoring view.
3. %id-atts; ID attributes (%id-atts;) is a parameter entity declaration in the topic DTD that includes attributes that enable the naming and referencing of elements in a DITA topic: id and conref.
4. %rel-atts; Relational attributes (<%rel-atts;>) is a parameter entity declaration in the topic DTD that includes attributes whose values may be used for representing navigational relationships. These attributes occur only on elements that represent relationships between topics.
5. %select-atts; Attributes that support both filtering and flagging include props , platform , product , audience , and otherprops . Attribute base is a generic attribute that is available for specialization; it can be specialized for values that have a simple value syntax like the filter attributes, but is not itself a filtering or flagging attribute. Attribute rev only lets you flag information that matches a run-time parameter. Attribute importance provides a range of values for applications to use as needed. The %select-atts; entity also includes additional entities that allow it to include specializations of the props and base attribute. See the DITA Architectural Specification for more information on filtering or flagging with attributes, as well as for information on specialization the base and props attributes.
6. %localization-atts; Localization attributes is a parameter entity declaration in the topic DTD, which defines a set of common attributes available on most DITA elements.
7. %univ-atts; Universal attributes is a parameter entity declaration in the topic DTD, which defines a set of common attributes available on most DITA elements.
8. %topicref-atts; and %topicref-atts-no-toc; The %topicref-atts; parameter entity represents a group of attributes used in numerous map elements, such as map, topicref, relcolspec, relcell, topichead, and topicgroup. The set is identical to those in the topicref-atts-no-toc attribute set, except that %topicref-atts; does not provide a default for the toc attribute.
9. Other common DITA attributes The following attributes are not part of an entity group but are common to many elements.
10. Complex attribute definitions Several DITA attributes require more explanation than can fit in a single table cell. Those attributes are collected here.

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