...By default, these substitutions must be triggered explicitly by pressing the Tab key, as in the Julia command line (the REPL); however, an automatic, as-you-type mode can also be activated, and a method based on keymap is also available. This feature also works in command mode, e.g. when searching the files with the / or ? commands, but the as-you-type mode is not available (the keymap-based version works though, and it also works with some Vim commands like f and t). By default, this feature is only active when editing Julia files. However, it can be also enabled with other file types, and even turned on/off on the fly regardless of the file type.