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From: dxf <dxforth@gmail.com>
Newsgroups: comp.lang.forth
Subject: Re: Reverse SCAN SPLIT
Date: Tue, 8 Oct 2024 13:58:47 +1100
Organization: i2pn2 (i2pn.org)
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On 8/10/2024 6:25 am, Ahmed wrote:
> On Mon, 7 Oct 2024 12:07:16 +0000, dxf wrote:
> 
> ..
> 
>> Interesting.  I'd do the numeric conversion in the main routine if
>> possible.
>> There's a parsing issue with  s" :30"
> 
> And what about this:
> 
> 
> : :t  ( add cnt -- add 2 1 | add1 2 add2 2 2 | add1 2 add2 2 add3 2 3)
>  bounds  ( end start)
>  dup     ( end start start)
>  >r      ( end start )   ( r: start)
>  swap    ( start end   ) ( r: start)
>  dup       ( start end pa)
>  -rot    ( pa start end )
>  do      ( pa)
>     i    ( pa add)
>     c@   ( pa c)
>     [char] : = ( pa f)
>     if         ( pa)
>        i       ( pa add)
>        -       ( pa-add)
>     dup     ( pa-add pa-add)
>        2       ( pa-add pa-add 2)
>        >       ( pa-add t|f)
>        if      ( pa-add)
>       drop  ( )
>          i     ( add)
>          dup     ( add add)
>          1+    ( add add+1)
>          2     ( add add+1 2)
>          rot   ( add+1 2 add)
>        else    ( pa-add)
>          1 = if ( )
>         s" 00" ( add 2)
>         i      ( add 2 add)
>       else  ( )
>            i     ( add)
>            dup 1+ 1  ( add add+1 1)
>            rot     ( add+1 1 add)
>          then
>     then
>     then
>     -1 +loop    ( ... add+1 1|2 pa)
>     r>          (               pa start)
>     tuck        (               start pa start)
>     -           (               start pa-st)
>     dup 0= if 2drop s" 00" then
> ;
> 
> 
> : .t ( s_add s_cnt m_add m_cnt h_add h_cnt)
>   type space ." hr"   space
>   type space ." min"  space
>   type space ." sec"
> ;
> 
> with stack juggling !!!!!!!!!!

swap dup -rot --> over
 
> Some tests:
> 
> 
> s" 10:1:2"  :t .t 10 hr 1 min 2 sec ok
> s" :10:"  :t .t 00 hr 10 min 00 sec ok
> s" ::"  :t .t 00 hr 00 min 00 sec ok
> s" ::1"  :t .t 00 hr 00 min 1 sec ok
> s" :10:1"  :t .t 00 hr 10 min 1 sec ok
> s" :10:"  :t .t 00 hr 10 min 00 sec ok
> s" 10:10:"  :t .t 10 hr 10 min 00 sec ok
> s" 10::"  :t .t 10 hr 00 min 00 sec ok

I wouldn't care about "x:" or "x::x"
Maybe also ":x"
But "5" needs to work :)