A macro can be executed in Emacs with the UniversalArgument,
‘C-u’, to repeat the macro four times, or
‘C-u 9’ to repeat it nine times, with
‘C-u -’ (which is equivalent to
‘negative-argument’ available from
‘M--’) for negative (in the opposite direction) one time, or with
‘C-u - 5’ to repeat the macro negatively (in the opposite direction) 5 times. To repeat a macro an infinite number of times use
‘C-u 0’. This will repeat the macro until the function quits (for example, by reaching the end of the buffer) or if the user cancels the command with a
‘C-g’ (see CancelingInEmacs).
See also RepeatingCommands.