This UniKey user-defined key mapping file assigns Chinese tone numbers 0 through 5 to the Z, S, F, R, and X keys, and assigns common Chinese phonetic symbols like roof and hook to other keys like J, W, A, E, and O to facilitate typing Chinese characters on a standard keyboard.

1. ; This is UniKey user-defined key mapping file, generated from UniKey (Windows)
Z = Tone0
S = Tone1
F = Tone2
R = Tone3
X = Tone4
J = Tone5
W = Hook-Bowl
A = Roof-A
E = Roof-E
O = Roof-O
D = D-Mark