Re: Reading command line in Pascal

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From	"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups	comp.programming
Subject	Re: Reading command line in Pascal
Date	Thu, 6 May 2021 11:55:57 +0200
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On 2021-05-06 10:46, Melzzzzz wrote:
> On 2021-05-05, Alf P. Steinbach <alf.p.steinbach+usenet@gmail.com> wrote:
>> On 29.04.2021 18:55, Peter wrote:
>>> David Brown wrote:
>>>> On 25/04/2021 16:33, Peter wrote:
>>>>> Öö Tiib wrote:
>>>>>> On Sunday, 25 April 2021 at 15:47:04 UTC+3, Peter wrote:
>>>>>>> How, in standard Pascal (ISO/IEC 7185:1990), does one read the
>>>>>>> command line?
>>>>>>
>>>>>> One does not as that standard does not have concept of command line.
>>>>>
>>>>> Yet another example of the language's silliness!
>>>>
>>>> It is not an "example of silliness".  It is simply not something covered
>>>> in the standard, because different Pascal implementations need
>>>> significantly different ways of getting command line information (and
>>>
>>> C manages.
>>
>> Unfortunately, C does not manage.
>>
>> That's not entirely the C standard's fault, because it provides the
>> ability, just in a way (`char` based string arguments of `main`) that
>> until June 2019, and perhaps also after, was impractical in Windows.
>>
>> All extant C implementations in Windows fail to encode the `main`
>> arguments as UTF-8, so these arguments cannot faithfully represent a
>> command line with e.g. filenames with international characters.
>>
>> That doesn't mean that the logic of your response is incorrect, nor the
>> intended meaning: it /can/ be done.
>>
>> You just have an incorrect perception of the state of C.
>>
>> If the first Pascal standard (disclaimer: I'm unfamiliar with it) had
>> standardized command line access just as C, then most likely Pascal
>> would have been in the same pit of backward compatible silliness as C.
>>
>> So in a way it was good that the Pascal standard did not address that issue.
> 
> Windows is broken, it's not C standards fault.

It is debatable (Windows has a POSIX layer, BTW).

But, let you need to parse the command line (or lines) in a certain way, 
you could do that in Windows, but out of luck in UNIX.

And as we all are programming rather in Whitespace (:-)), how would you 
design a Whitespace command line calculator?

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de

Thread

Reading command line in Pascal Peter <peterxpercival@hotmail.com> - 2021-04-25 13:47 +0100
  Re: Reading command line in Pascal Öö Tiib <ootiib@hot.ee> - 2021-04-25 07:23 -0700
    Re: Reading command line in Pascal Peter <peterxpercival@hotmail.com> - 2021-04-25 15:33 +0100
      Re: Reading command line in Pascal David Brown <david.brown@hesbynett.no> - 2021-04-25 17:52 +0200
        Re: Reading command line in Pascal "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-04-26 07:50 +0200
          Re: Reading command line in Pascal David Brown <david.brown@hesbynett.no> - 2021-04-26 08:33 +0200
            Re: Reading command line in Pascal "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-04-26 10:21 +0200
              Re: Reading command line in Pascal David Brown <david.brown@hesbynett.no> - 2021-04-26 10:46 +0200
            Re: Reading command line in Pascal Peter <peterxpercival@hotmail.com> - 2021-04-29 17:54 +0100
          Re: Reading command line in Pascal Peter <peterxpercival@hotmail.com> - 2021-04-29 17:52 +0100
            Re: Reading command line in Pascal Peter <peterxpercival@hotmail.com> - 2021-04-29 18:44 +0100
        Re: Reading command line in Pascal Peter <peterxpercival@hotmail.com> - 2021-04-29 17:55 +0100
          Re: Reading command line in Pascal "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2021-05-05 20:20 +0200
            Re: Reading command line in Pascal Melzzzzz <Melzzzzz@zzzzz.com> - 2021-05-06 08:46 +0000
              Re: Reading command line in Pascal "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2021-05-06 11:55 +0200
                Re: Reading command line in Pascal Melzzzzz <Melzzzzz@zzzzz.com> - 2021-05-06 10:06 +0000
                Re: Reading command line in Pascal An iM <uavyuayve@hotmail.com> - 2021-08-27 11:27 -0700

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