From: "Randy Brukardt" <randy@rrsoftware.com>
Subject: Re: DOS Options
Date: Wed, 19 Dec 2007 16:47:14 -0600
Date: 2007-12-19T16:47:14-06:00 [thread overview]
Message-ID: <fkc6r0$1p4$1@jacob-sparre.dk> (raw)
In-Reply-To: 1i9d4ab.twgszk4zp5evN%csampson@inetworld.net
"Charles H. Sampson" <csampson@inetworld.net> wrote in message
news:1i9d4ab.twgszk4zp5evN%csampson@inetworld.net...
...
> This has the effect that it's still necessary to write a parser for
> Argument (1), something I thought Ada.Command_Line might be taking care
> of. I'm talking about the case of multiple slash-headed options jammed
> against the command:
>
> command/x/y/z
>
> I was hoping that Ada.Command_Line would return "/x" as Argument (1),
> "/y" as Argument (2), etc.
>
> Is the GNAT implementation a reasonable one? Knowing some of the
> people at ACT, I suspect that they researched it fully and are doing
> exactly what is expected for a DOS program.
Ada.Command_Line is a thinly-veiled wrapper on the normal C "argv/argc"
mechanism. I think most Ada compilers simply copy that mechanism (that's
pretty much a requirement on Unix, and it is better for portability on all
platforms). The fact that that mechanism isn't very useful is not considered
relevant. (And yes, for the record, Janus/Ada does exactly that for
Ada.Command_Line. We don't even bother to use Ada.Command_Line for the
command line processing of our compiler and tools; it is just as easy to
process starting from the original string.)
Randy.
next prev parent reply other threads:[~2007-12-19 22:47 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-05 3:34 DOS Options Charles H. Sampson
2007-12-05 5:15 ` Jeffrey Creem
2007-12-19 18:00 ` Charles H. Sampson
2007-12-19 19:40 ` Gautier
2007-12-19 22:59 ` Randy Brukardt
2007-12-19 23:36 ` Adam Beneschan
2007-12-20 22:15 ` Randy Brukardt
2007-12-19 22:47 ` Randy Brukardt
2007-12-19 22:47 ` Randy Brukardt
2007-12-21 0:39 ` Jeffrey R. Carter
2007-12-22 0:45 ` Randy Brukardt
2007-12-19 22:47 ` Randy Brukardt [this message]
2007-12-19 22:47 ` Randy Brukardt
2007-12-05 10:06 ` gautier_niouzes
2007-12-05 10:19 ` Stephen Leake
2007-12-05 14:51 ` Charles H. Sampson
2007-12-05 20:06 ` anon
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