Emacs: Move Cursor by camelCase, snake_case

You can set emacs so that word moving commands will move cursor into between CamelCaseWords, or treat snake_case as one single word.

Alt+x subword-mode

Change all cursor movement/edit commands to stop in-between the “camelCase” words.

Alt+x superword-mode

Change all cursor movement/edit commands to treat text like “x_y” as one word. Useful for “snake_case”.

Alt+x global-subword-mode

Toggle on/off globally.

Alt+x global-superword-mode

Toggle on/off globally.

someThing▮
some▮-thing
some▮_thing

some▮Thing
some▮-thing
some▮_thing

someThing▮
some-thing▮
some_thing▮

subword-mode and superword-mode are mutally exclusive. Turning one on turns off the other.

Put this in your Emacs Init File:

;; move cursor by camelCase
(global-subword-mode 1)
;; 1 for on, 0 for off