{{
  : char     (  -$  )   " " ;
  : tokenize ( $-$$ )
    @char ^strings'splitAtChar withLength 1- over + 0 swap ! tempString ;
  : action   ( $-   )
    keepString ^buffer'add ;
---reveal---
  : split    ( $cb- )
    ^buffer'set !char
    char ^strings'append
    [ tokenize action dup 1 <> ] while drop
    ^buffer'get drop ;
}}