Re: Do people create parsers for command line arguments?

From	Giacinto Cifelli <gciofono@gmail.com>
Newsgroups	comp.compilers
Subject	Re: Do people create parsers for command line arguments?
Date	2022-08-08 18:25 +0200
Organization	Compilers Central
Message-ID	<22-08-001@comp.compilers> (permalink)
References	<22-07-054@comp.compilers> <22-07-057@comp.compilers> <22-07-059@comp.compilers>

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in general the linux command line arguments are parsed through getopt(3)
https://www.man7.org/linux/man-pages/man3/getopt.3.html

and it is better not to implement special things on the command line,
because it could be pre-parsed or expanded by the shell itself.

then if you want to pass a string on the command line, that is
different, but then again, it is better to take it from stdin.

On Sat, Jul 30, 2022 at 1:00 AM gah4 <gah4@u.washington.edu> wrote:
>
> On Friday, July 29, 2022 at 2:49:38 PM UTC-7, Kaz Kylheku wrote:
>
> (snip)
>
> > All of these programs must be parsing. They have phrase structures
> > and operator precedence with parentheses right the command line.
>
> It seems to me that this is the important part. The simplest processing
> of a command line might not count as parsing.
>
> If one processes an arithmetic expression left to right, with no precedence,
> that might not count as parsing. Is two different precedence levels enough?
>
> My first thought of the question was for machine generated vs.
> hand written parsers.  When does it get complicated enough to make
> it worth using a parser generator?

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Thread

Do people create parsers for command line arguments? Roger L Costello <costello@mitre.org> - 2022-07-28 11:14 +0000
  Re: Do people create parsers for command line arguments? Kaz Kylheku <480-992-1380@kylheku.com> - 2022-07-29 20:52 +0000
    Re: Do people create parsers for command line arguments? gah4 <gah4@u.washington.edu> - 2022-07-29 15:30 -0700
      Re: Do people create parsers for command line arguments? Giacinto Cifelli <gciofono@gmail.com> - 2022-08-08 18:25 +0200
        Re: Do people create parsers for command line arguments? gah4 <gah4@u.washington.edu> - 2022-08-08 22:01 -0700
        Re: Do people create parsers for command line arguments? Johann 'Myrkraverk' Oskarsson <johann@myrkraverk.invalid> - 2022-09-29 13:16 -0400
  Re: Do people create parsers for command line arguments? gah4 <gah4@u.washington.edu> - 2022-08-23 15:07 -0700

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