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Groups > comp.lang.forth > #20133

Re: Fizz Buzz Zoom

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WJ wrote:

> WJ wrote:
> 
> > Paul Rubin wrote:
> > 
> > > This works in gforth.  I'm not sure if it's valid ANS Forth, since it
> > > requires multiple s" ..." string literals to be alive at the same time.
> > > Coding and testing wasn't difficult in absolute terms, since the program
> > > is so small, but it still took multiple tries and head-scratching, and
> > > the result seems unmodular compared to a Python version.  Maybe there
> > > was something I could have done better.
> > > 
> > >     : fb0 ( flag sa su n d -- flag )
> > >         mod 0= if type -1 else 2drop 0 then or ;
> > > 
> > >     : fb ( n -- flag ) >r
> > >         0 ( flag )
> > >         s" Fizz" r@ 3 fb0
> > >         s" Buzz" r@ 5 fb0
> > >         s" Zoom" r> 7 fb0 ;
> > > 
> > >     : f ( n -- ) dup fb ( flag ) 0= if . else drop then cr ;
> > > 
> > >     : run ( -- ) \ run to 120 so that 3*5*7=105 is included
> > >         120 1 do i f loop ;
> > 
> > Factor:
> > 
> > USING: locals math.ranges ;
> > 
> > :: maybe ( m n str -- )
> >    m n mod zero? [ str write   "N" off ] when ;
> > 
> > : fizz ( -- )
> >   1 105 1 <range>
> >     [ dup "N" set
> >       [ 3 "Fizz" maybe ] [ 5 "Buzz" maybe ] [ 7 "Zoom" maybe ] tri
> >       "N" get [ . ] [ nl ] if*
> >     ] each ;
> 
> A simpler way:
> 
> :: maybe ( m n str -- m )
>    m n divisor? [ str write  "fizzed" on ] when
>    m ;
> 
> : fizz ( -- )
>   105 [1,b]
>     [ "fizzed" off
>       3 "Fizz" maybe 
>       5 "Buzz" maybe 
>       7 "Zoom" maybe
>       "fizzed" get [ drop nl ] [ . ] if
>     ] each ;

Another way.

:: maybe ( m bool n str -- m bool )
   m n divisor?
   [ str write  m t ]
   [ m bool ]
   if ;

: fizz ( -- )
  105 [1,b]
    [ f
      3 "Fizz" maybe 
      5 "Buzz" maybe 
      7 "Zoom" maybe
      [ drop nl ] [ . ] if
    ] each ;

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Fizz Buzz Zoom Paul Rubin <no.email@nospam.invalid> - 2012-10-07 09:19 -0700
  Re: Fizz Buzz Zoom mhx@iae.nl (Marcel Hendrix) - 2012-10-07 20:33 +0200
    Re: Fizz Buzz Zoom Paul Rubin <no.email@nospam.invalid> - 2012-10-07 11:43 -0700
      Re: Fizz Buzz Zoom mhx@iae.nl (Marcel Hendrix) - 2012-10-07 21:09 +0200
        Re: Fizz Buzz Zoom Paul Rubin <no.email@nospam.invalid> - 2012-10-07 12:18 -0700
          Re: Fizz Buzz Zoom ouatubi@gmail.com - 2012-10-08 01:15 -0700
            Re: Fizz Buzz Zoom Paul Rubin <no.email@nospam.invalid> - 2012-10-08 09:37 -0700
              Re: Fizz Buzz Zoom ouatubi@gmail.com - 2012-10-09 01:16 -0700
  Re: Fizz Buzz Zoom Doug Hoffman <glidedog@gmail.com> - 2012-10-07 14:45 -0400
    Re: Fizz Buzz Zoom Paul Rubin <no.email@nospam.invalid> - 2012-10-07 12:28 -0700
      Re: Fizz Buzz Zoom Doug Hoffman <glidedog@gmail.com> - 2012-10-07 21:06 -0400
        Re: Fizz Buzz Zoom Paul Rubin <no.email@nospam.invalid> - 2012-10-07 21:32 -0700
          Re: Fizz Buzz Zoom Doug Hoffman <glidedog@gmail.com> - 2012-10-08 06:06 -0400
            Re: Fizz Buzz Zoom Mark Wills <forthfreak@gmail.com> - 2012-10-08 05:24 -0700
  Re: Fizz Buzz Zoom anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-08 14:02 +0000
    Re: Fizz Buzz Zoom Paul Rubin <no.email@nospam.invalid> - 2012-10-08 08:38 -0700
      Re: Fizz Buzz Zoom Paul Rubin <no.email@nospam.invalid> - 2012-10-08 08:43 -0700
      Re: Fizz Buzz Zoom "A. K." <akk@nospam.org> - 2012-10-08 18:03 +0200
      Re: Fizz Buzz Zoom anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-08 16:08 +0000
        Re: Fizz Buzz Zoom Paul Rubin <no.email@nospam.invalid> - 2012-10-08 09:23 -0700
          Re: Fizz Buzz Zoom anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-08 17:11 +0000
            Re: Fizz Buzz Zoom Bernd Paysan <bernd.paysan@gmx.de> - 2012-10-08 22:12 +0200
            Re: Fizz Buzz Zoom Paul Rubin <no.email@nospam.invalid> - 2012-10-08 13:16 -0700
              Re: Fizz Buzz Zoom Hannu Vuolasaho <hannu.vuolasaho@nospam.tut.fi.invalid> - 2012-10-08 21:06 +0000
                Re: Fizz Buzz Zoom "Elizabeth D. Rather" <erather@forth.com> - 2012-10-08 11:57 -1000
                Re: Fizz Buzz Zoom Mark Wills <forthfreak@gmail.com> - 2012-10-09 01:26 -0700
                Re: Fizz Buzz Zoom George Hubert <georgeahubert@yahoo.co.uk> - 2012-10-09 08:38 -0700
                Re: Fizz Buzz Zoom Paul Rubin <no.email@nospam.invalid> - 2012-10-09 09:03 -0700
                Re: Fizz Buzz Zoom "Elizabeth D. Rather" <erather@forth.com> - 2012-10-09 08:44 -1000
              Re: Fizz Buzz Zoom anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-10 12:32 +0000
                Re: Fizz Buzz Zoom Bernd Paysan <bernd.paysan@gmx.de> - 2012-10-10 16:59 +0200
                Re: Fizz Buzz Zoom anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-10 16:42 +0000
                Re: Fizz Buzz Zoom Paul Rubin <no.email@nospam.invalid> - 2012-10-12 21:18 -0700
                Re: Fizz Buzz Zoom "Elizabeth D. Rather" <erather@forth.com> - 2012-10-12 21:06 -1000
      Re: Fizz Buzz Zoom Doug Hoffman <glidedog@gmail.com> - 2012-10-10 09:02 -0400
  Re: Fizz Buzz Zoom Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2012-10-08 17:50 +0100
    Re: Fizz Buzz Zoom Paul Rubin <no.email@nospam.invalid> - 2012-10-08 10:15 -0700
  Re: Fizz Buzz Zoom "WJ" <w_a_x_man@yahoo.com> - 2013-03-01 02:37 +0000
    Re: Fizz Buzz Zoom "WJ" <w_a_x_man@yahoo.com> - 2013-03-01 04:51 +0000
    Re: Fizz Buzz Zoom Doug Hoffman <glidedog@gmail.com> - 2013-03-01 05:38 -0500
    Re: Fizz Buzz Zoom "WJ" <w_a_x_man@yahoo.com> - 2013-03-01 16:23 +0000
      Re: Fizz Buzz Zoom "WJ" <w_a_x_man@yahoo.com> - 2013-03-01 16:36 +0000
    Re: Fizz Buzz Zoom Coos Haak <chforth@hccnet.nl> - 2013-03-01 20:49 +0100

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