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From: Ruvim <ruvim.pinka@gmail.com>
Newsgroups: comp.lang.forth
Subject: Re: Parsing timestamps?
Date: Sun, 6 Oct 2024 14:48:14 +0400
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On 2024-10-06 11:51, dxf wrote:
> Is there an easier way of doing this?  End goal is a double number representing centi-secs.
> 
> 
> empty decimal
> 
> : SPLIT ( a u c -- a2 u2 a3 u3 )  >r 2dup r> scan 2swap 2 pick - ;
> : >INT ( adr len -- u )  0 0 2swap >number 2drop drop ;
> 
> : /T ( a u -- $hour $min $sec )
>    2 0 do  [char] : split  2swap  dup if 1 /string then  loop
>    2 0 do  dup 0= if 2rot 2rot then  loop ;
> 
> : .T  2swap 2rot  cr  >int . ." hr "  >int . ." min " >int . ." sec " ;
> 
> s" 1:2:3"    /t .t
> s" 02:03"    /t .t
> s" 03"       /t .t
> s" 23:59:59" /t .t
> s" 0:00:03"  /t .t


I would use `split-string` factor as:

   : /t ( sd.time -- sd.hour sd.min sd.sec )
     s" :" split-string
     s" :" split-string
   ;

   \ Where

   : split-string
     ( sd.text sd.separator -- sd.left sd.right | sd.text 0 0 )
     dup >r  3 pick >r  ( R: u.[sd.separator][1] addr.[st.text][2] )
     search 0= if 2rdrop 0 0 exit then ( addr u )
     over r@ - r> swap  2swap r> /string
   ;



--
Ruvim