Path: ...!weretis.net!feeder9.news.weretis.net!i2pn.org!i2pn2.org!.POSTED!not-for-mail
From: dxf <dxforth@gmail.com>
Newsgroups: comp.lang.forth
Subject: Re: Parsing timestamps?
Date: Mon, 7 Oct 2024 02:34:19 +1100
Organization: i2pn2 (i2pn.org)
Message-ID: <3f677402affc744ccafcb2cbcc5a664c26b98ba2@i2pn2.org>
References: <1f433fabcb4d053d16cbc098dedc6c370608ac01@i2pn2.org>
 <7e21117d37c506cccd8e79323c416fd1@www.novabbs.com>
 <306ac44092ac6cd60b0d98b34d5b323b48996f58@i2pn2.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Injection-Date: Sun, 6 Oct 2024 15:34:20 -0000 (UTC)
Injection-Info: i2pn2.org;
	logging-data="837165"; mail-complaints-to="usenet@i2pn2.org";
	posting-account="XPw7UV90Iy7EOhY4YuUXhpdoEf5Vz7K+BsxA/Cx8bVc";
User-Agent: Mozilla Thunderbird
In-Reply-To: <306ac44092ac6cd60b0d98b34d5b323b48996f58@i2pn2.org>
X-Spam-Checker-Version: SpamAssassin 4.0.0
Content-Language: en-GB
Bytes: 2809
Lines: 66

On 6/10/2024 11:58 pm, dxf wrote:
> On 6/10/2024 7:59 pm, mhx wrote:
>> On Sun, 6 Oct 2024 7:51:31 +0000, 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
>>
>> Why don't you use the fact that >NUMBER returns the given
>> string starting with the first unconverted character?
>> SPLIT should be redundant.
> 
> Good idea!
> 
> : /T ( a u -- hour min sec )
>   3 0 do
>     0 0 2swap >number rot drop ( u ... a u)
>     dup if  over c@ [char] : = 1 and /string  then
>   loop 2drop
>   2 0 do  dup 0= if rot rot then  loop ;
> 
> : .T  cr  . ." sec "  . ." min " . ." hr " ;
> 
> 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

Bug fix:

variable cnt

: @SEC ( a u -- ud )  \ HH:MM:SS or free-form
  0 cnt !  3 0 do
    0 0 2swap >number rot drop ( u ... a u)
    dup if  1 /string  1 cnt +!  then
  loop 2drop  cnt @ 1+ 0 do  rot  loop ( fixup)
; \  swap secs/min * +  swap secs/hour um*  rot 0 d+ ;

: .3 ( h m s -- )  cr rot . swap . . ;

s" 00:00:06" @sec .3
s" 00:06:00" @sec .3
s" 06:00:00" @sec .3
cr
s" 06"       @sec .3
s" 06:00"    @sec .3
s" 06:00:00" @sec .3