DITA 1.3 support DITA Open Toolkit provides processing support for the OASIS DITA 1.3 specification. Initial preview support for this specification was added in version 2.0 of the toolkit; version 2.2 extended this foundation to support key scopes and branch filtering along with additional DITA 1.3 features. ditavalref xmlelement xmlatt line-through overline object div support keyscope deliveryTarget orient keyref cascade profiling filters support branch filters DTD schema DITA 1.3 grammar files DITA 1.3 specification support catalog grammar file resolution

Because DITA 1.3 is fully backwards compatible with previous DITA DTDs and schemas, DITA-OT provides the 1.3 materials as the default grammar files for processing. The XML Catalog resolution maps any references for unversioned DITA document types to the 1.3 versions. All processing ordinarily dependent on the 1.0, 1.1, or 1.2 definitions continues to work as usual, and any documents that make use of the newer DITA 1.3 elements or attributes will be supported with specific new processing.

Major features of DITA 1.3

The following DITA 1.3 features are supported in DITA Open Toolkit.

  • Scoped keys supported using DITA 1.3 keyscope attribute
  • Branch filtering using ditavalref elements in a map
  • Support formatting based on new XML Mention elements, such as adding angle brackets around elements tagged with xmlelement and adding @ before attributes tagged with xmlatt
  • New highlighting elements line-through and overline
  • Support for profiling based on deliveryTarget attribute
  • Support for the new orient attribute for rotating tables
  • Profile (filter or flag) based on groups within profiling attributes
  • keyref and related key referencing attributes supported on object
  • New in-topic link syntax using . in place of the topic ID: #./figure
  • Support for additional new elements, such as the div element for grouping
  • Support cascade attribute in maps (processing defaults to the value merge, which is the default cascade operation described by the DITA specification)
For the latest status information on DITA 1.3-related features and fixes, see the in the GitHub issues tracker.