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Re: Genral advise and comments on callback style words

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From Chris Hinsley <chris.hinsley@gmail.com>
Newsgroups comp.lang.forth
Date Thu, 8 Nov 2012 14:11:51 +0000
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On 2012-11-08 13:54:42 +0000, Josh Grams said:

> Chris Hinsley wrote: <2012110713421835115-chrishinsley@gmailcom>
>> Folks I have implamented an Amiga style double linked list words set a
>> few days back and I have an emueration word as follows:
>> 
>> \ ( u xt lh -- ln | 0)
>> \ xt api is ( u ln lh -- ln | 0 )
>> : LISTHEAD-ENUMERATE-FORWARDS
>> 	0 >R
>> 	DUP LISTHEAD-GET-HEAD DUP
>> 	BEGIN
>> 		NIP DUP LISTNODE-GET-SUCC
>> 		DUP
>> 	WHILE
>> 		4 PICK 2 PICK 4 PICK
>> 		6 PICK EXECUTE DUP R!
>> 	UNTIL THEN
>> 	2DROP 2DROP DROP
>> 	R>
>> ;
> 
> There are other interfaces that might work better, but sticking to
> yours, how about:
> 
> : LISTHEAD-ENUMERATE-FORWARDS ( u xt lh -- ln | 0 )
> 	TUCK  SWAP 2>R
> 	LISTHEAD-GET-HEAD BEGIN
> 		2DUP LISTNODE-GET-SUCC
> 	DUP WHILE
> 		2R@ EXECUTE
> 	?DUP UNTIL ELSE NIP THEN
> 	NIP NIP 2R> 2DROP ;
> 
> And just out of curiosity, why are you calling GET-HEAD and then
> GET-SUCC before you do anything?  Doesn't that skip the first list node?
> 
> --Josh

The GET-SUCC'd node isn't the node passed into the callback ! That's 
the node for the next iteration.

Chris

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Thread

Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-07 13:42 +0000
  Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-07 13:51 +0000
    Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-07 13:56 +0000
  Re: Genral advise and comments on callback style words anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-11-07 13:55 +0000
    Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-07 15:29 +0000
      Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-07 15:35 +0000
    Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-07 15:32 +0000
    Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-07 15:37 +0000
      Re: Genral advise and comments on callback style words anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-11-08 16:31 +0000
        Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 17:02 +0000
          Re: Genral advise and comments on callback style words anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-11-08 17:07 +0000
          Re: Genral advise and comments on callback style words Mark Wills <forthfreak@gmail.com> - 2012-11-09 01:16 -0800
    Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-07 15:41 +0000
      Re: Genral advise and comments on callback style words anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-11-08 16:39 +0000
  Re: Genral advise and comments on callback style words Brad Eckert <hwfwguy@gmail.com> - 2012-11-07 08:07 -0800
    Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 12:52 +0000
  Re: Genral advise and comments on callback style words humptydumpty <ouatubi@gmail.com> - 2012-11-07 13:04 -0800
    Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 13:04 +0000
      Re: Genral advise and comments on callback style words Mark Wills <forthfreak@gmail.com> - 2012-11-08 06:34 -0800
        Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 14:40 +0000
    Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 13:14 +0000
      Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 13:23 +0000
      Re: Genral advise and comments on callback style words Ouatu Bogdan <ouatubi@gmail.com> - 2012-11-08 13:45 +0000
        Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 13:59 +0000
        Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 14:02 +0000
          Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 15:35 +0000
            Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 16:24 +0000
              Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 16:39 +0000
                Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 16:57 +0000
                Re: Genral advise and comments on callback style words "Elizabeth D. Rather" <erather@forth.com> - 2012-11-08 07:56 -1000
  Re: Genral advise and comments on callback style words Josh Grams <josh@qualdan.com> - 2012-11-08 13:54 +0000
    Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 14:06 +0000
      Re: Genral advise and comments on callback style words Josh Grams <josh@qualdan.com> - 2012-11-08 18:04 +0000
        Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 19:36 +0000
        Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 19:38 +0000
          Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 19:42 +0000
    Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 14:11 +0000
      Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 14:31 +0000
        Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 14:51 +0000
          Re: Genral advise and comments on callback style words Josh Grams <josh@qualdan.com> - 2012-11-08 18:23 +0000
            Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 19:57 +0000
            Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 20:04 +0000
              Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 20:17 +0000
                Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 20:29 +0000
                Re: Genral advise and comments on callback style words Chris Hinsley <chris.hinsley@gmail.com> - 2012-11-08 20:50 +0000

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