action
set referent string-expression to string-expression
Sets the value of a specified referent.
The first string-expression contains the name of the referent, and the second is the value to store in that referent.
This is an example of using set referent to open a stream, attach that stream to a referent, write text to that stream, and close the stream.
In this example, the values of cross-references are mapped to particular "sec1" and "sub-sec1" titles. The referents are called "sec-1" and "sec-2", and so on, in order of their appearance. Referring to a referent named "sec-n" ("n" here represents a numeric value) produces its associated title.
element title when parent is chapter local stream content set content to "Chapter %d(chapter-number): %c%n" output content set referent (attribute id of parent) to content