 tail?
 
 0.1
-,0.1 ! wrong
 10,0.1
 1.23
 .1

    DEFER: word
    FORGET: word
    POSTPONE: word

! Classes


    -1.5e30
    1.5e-30
    1,000.1,2
    NAN: CAFE1234 0,. ! third token wrong
    0,. ! wrong, next line also wrong
    0,.
    NAN: ! ff 0xff comment
        xCAFE1234 ! wrong
        ff ! shouldn't match as a hex number
    NAN: 0
    drop
    NAN: !
