The ENTER_DIGRAPH function allows you to enter digraphs or compose letters not normally available on your keyboard. If you have not made any changes to the internal digraph table (using DIGRAPH), you could for example enter a German sharp "s"; enter the key to activate the ENTER_DIGRAPH function, followed by two "s". Note that, in order to display this character on your screen, your terminal must be capable of doing so. If you, for instance, have an American 7-bit ASCII terminal only a normal "s" will displayed, eventhough it will be treated as a German sharp "s" internally.
To view the available digraphs, enter the "digraph" command with no arguments. By default, ircII uses the same sequences as available on Digital VT320/VT420 terminals as well as in the editor Elvis.
See Also: digraph set/irc_encoding set/input_encoding set/display_encoding