Font Attribute Hierarchy
Original Publication Date: 1989-May-01
Included in the Prior Art Database: 2005-Jan-29
The presentation attributes of a font can be specified at various hierarchy levels in an interchange document. Within a given hierarchy level, modified font attributes become active as long as the level exists. Font characteristics that are common for lower hierarchy levels in a document may be specified at higher levels thus eliminating the respecification of unchanged font attributes. In addition, the specification of font attributes rather than requesting a certain named font permits font substitution. The processor of the document determines a substitute font based on a description of the named font's characteristics.