data-attributes of attribute attribute-name (of element-expression)?
Allows all declared attributes of entities named in an
of an element to be treated as a shelf (to a certain extent), as follows:
The key value used to index
data-attributes should always be uppercased when SGML parsing is
involved and when the SGML declaration specifies
NAMECASE GENERAL YES for the SGML
document being processed. Unlike names in OmniMark programs, string values used as keys are not automatically
uppercased: doing so is the OmniMark programmer's responsibility. Uppercasing can be done by directly
entering the appropriately uppercased values or by using the
u format modifier.
Unlink other shelves, the
data-attributes shelf does not have a current item. In addition, even though
some of the items on the
data-attributes shelf may be list-valued, double-indexing is not allowed. The
using prefix can be used to accomplish double-indexing.
To reference the attributes of a specific entity named in an entity or entities attribute, the
data-attributes shelf can be qualified in the same ways as data-attribute references.
data-attributes shelf is indexed as follows:
specifiedqualifier is not given
specifiedqualifier is given
The following illustrations how a
repeat over can be used to iterate over the
repeat over specified data-attributes of attribute "ref" as d-a output key of data-attribute d-a output "=%"%v(d-a)%"%n" again