anchor.diff:      last alias <accept> // ( -- str ) Read multiple lines from terminal.
   
   code nop end-code // ( -- ) no operation
  -    ' nop alias </accept> // ( -- ) Ending mark of a multiple-line input
  -    ' nop alias d last py: pop().name=chr(4) // ( -- ) Ctrl-D ending mark of a multiple-line input
  +    ' nop alias </accept> last py: pop().help="" 
  +        // ( -- ) Ending mark of a multiple-line input, do nothing.
  +    ' nop alias temp last py: pop().name=chr(4) last py: pop().help="" 
  +        // ( -- ) Ctrl-D ending mark of a multiple-line input, do nothing.
       rescan-word-hash
       
   : refill        ( -- flag ) // Reload TIB from stdin. return false means no input or EOF
  
positive.code:         print(i and i.name, end=" ")
      print() end-code 
      // ( -- ) Prints all words in forth vocabulary
  code . print(pop(),end=" ") end-code // ( x -- ) Print the TOS
  code cr print() end-code // ( -- ) print a carriage return
  \ code .s print(stack) end-code // ( -- ) Print the data stack 
  code help
  
negative.code:                     ---
                  </selftest>
  
  : count         ( thing -- thing length ) // Get length of the thing if it has
                  py: push(len(tos())) ;
  
                  <selftest>
  