The output unit directions also have types of information associated, which are in general set dynamically depending on the current output unit, for instance on the output unit whose navigation panel is being formatted:
href
A string that can be used as an href attribute linking to the output unit corresponding to the direction.
string
A string representing the direction that can be used in context where only entities are available (attributes). See Init File Expansion Contexts: Normal, Preformatted, Code, String, Math.
text
A string representing the direction to be used in contexts with HTML elements (preformatted and normal contexts). See Init File Expansion Contexts: Normal, Preformatted, Code, String, Math.
node
Same as text
, but selecting the node associated with the
output unit direction in priority.
section
Same as text
, but selecting the sectioning command
associated with the output unit direction in priority.
text
and string
also have a variant with
‘_nonumber’ prepended, such as text_nonumber
without sectioning
command number in the representation.