 -0.1
 -0,1.1
 1.
-.  ! other
--. ! other
 
 ! Numeral comma separator parsing (!: wrong, ~: other):
   ! int

tail?

0.1
,0.1 ! wrong
10,0.1
1.23
.1

    flushablething
    flushable
    <PRIVATEfoo
    "asdf"foo

<< 5 1 + . >> 1
