From: dxforth@gmail.com   
      
   On 13/10/2024 1:20 pm, Ruvim wrote:   
   > ...   
   > > Typically, if word name ends with a question mark, the first (top) output   
   > > parameter of the word is a *flag*. And it's true for all standard words.   
   > > (though, opposite is not true)   
   > ...   
   > These names follow the common convention. A question mark at the beginning of   
   > a name means that the word does something or does nothing depending on   
   certain   
   > conditions.   
   >   
   > Well known nonstandard words: `?stack` `?csp` `?comp` `?exec`   
   > Standard words: `?do` `?dup`   
      
   Here is Forth Inc's convention as provided in Forth Programmer's Handbook.   
   It appears more flexible than what you describe above.   
      
      ?name    Check condition, return true if yes    ?TERMINAL   
               Conditional operator                   ?DUP   
               Check condition, abort if bad          ?STACK   
               Fetch contents of name and display     ?N   
      [..]   
      
      name?    Same as ?name                          B?   
      
   The lack of differentiation between ?NAME and NAME? is likely due to early   
   forth storing names as 3 characters plus count.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)