We want to make a change:

Record One Unit of Work

0

normalizes our cursor position by placing it at the start of the line. This means that our next motion always starts from the same place, making it more repeatable.

Note: f. is more repeatability than l

Execute Macro in Series

When the f. command is executed, it finds no . characters and the macro aborts.

Execute Macro in Parallel

:normal @a

tells Vim to execute the macro once for each line in the selection.

Deciding: Series or Parallel Executing a macro on multiple items in parallel is more robust.

Tip66 Tip68