The user can dynamically change the bindings of keys while using
Readline. This is done by representing the function with a descriptive
name. The user is able to type the descriptive name when referring to
the function. Thus, in an init file, one might find
Meta-Rubout: backward-kill-word
This binds the keystroke Meta-Rubout to the function
descriptively named backward-kill-word. You, as the
programmer, should bind the functions you write to descriptive names as
well. Readline provides a function for doing that:
Function: int rl_add_defun(const char *name, rl_command_func_t *function, int key)
Add name to the list of named functions. Make function be
the function that gets called. If key is not -1, then bind it to
function using rl_bind_key().
Using this function alone is sufficient for most applications. It is
the recommended way to add a few functions to the default functions that
Readline has built in. If you need to do something other
than adding a function to Readline, you may need to use the
underlying functions described below.
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