8 Interactive Value Port

(require mrlib/interactive-value-port)

(set-interactive-display-handler port) → void?

port : output-port?

Sets port’s display handler (via port-display-handler) so that when it encounters these values:

• exact, real, non-integral numbers

• syntax objects

it uses write-special to send snips to the port, instead of those values. Otherwise, it behaves like the default handler.

To show values embedded in lists and other compound object, it uses pretty-print.

(set-interactive-write-handler port) → void?

port : output-port?

Like set-interactive-display-handler, but sets the port-write-handler.

(set-interactive-print-handler port) → void?

port : output-port?

Like set-interactive-display-handler, but sets the port-print-handler.