On this page:
t
PLane T
hash-lang
void-const
undefined-const
commandline
centerline
math
4.2.11 Miscellaneous

(t pre-content ...)  paragraph?
  pre-content : pre-content?
Wraps the decoded pre-content as a paragraph.

"PLaneT" (to help make sure you get the letters in the right case).

Returns an element for #lang that is hyperlinked to an explanation.

Returns an element for #<void>.

Returns an element for #<undefined>.

(commandline pre-content ...)  paragraph?
  pre-content : pre-content?
Produces an inset command-line example (e.g., in typewriter font).

(centerline pre-flow ...)  nested-flow?
  pre-flow : pre-flow?
An alias for centered for backward compatibility.

(math pre-content ...)  element?
  pre-content : any/c
The decoded pre-content is further transformed: