Add a new command to the command line editor associated with Input.
Command is the name of the command, Help is the help string printed
with e.g. bind -a (see el_bind/2) and Goal is called of the
associated key-binding is activated. Goal is called as
call(:Goal, +Input, +Char, -Continue)
where Input is the input stream providing access to the editor, Char
the activating character and Continue must be instantated with one
of the known continuation codes as defined by libedit: norm,
newline, eof, arghack, refresh, refresh_beep, cursor,
redisplay, error or fatal. In addition, the following Continue
code is provided.
- electric(Move, TimeOut, Continue)
- Show electric caret at Move positions to the left of the normal
cursor positions for the given TimeOut. Continue as defined by
the Continue value.
The registered Goal typically used el_line/2 to fetch the input line
and el_cursor/2, el_insertstr/2 and/or el_deletestr/2 to manipulate
the input line.
Normally el_bind/2 is used to associate the defined command with a
keyboard sequence.
- See also
- -
el_set(3) EL_ADDFN for details.
