[LR]?([UD][LR])*[UD]?
Up or down keystrokes alternate with left or right keystrokes. Never have to repeat a key. Avoids the problem of electrical bouncing. Might be better UI as avoids ever needing to count the number of consecutive button presses. The only time the pattern is broken is "backspace": Go the opposite direction to undo a previous keystroke.
Navigates an orthogonally laid out binary tree, perhaps depicted as a fractal.
Previously,
four-buttons-suffice.html
many-keypress-soft-keyboard.html
8-button-keyboard.html
No comments :
Post a Comment