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Message-Id: <1281455.i5JogXiQq3@linux1.krischik.com>
From: Martin Krischik <krischik@users.sourceforge.net>
Subject: Re: Ada.Command_Line and wildcards
Newsgroups: comp.lang.ada
Date: Sun, 25 Feb 2007 17:42:10 +0100
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Date: 2007-02-25T17:42:10+01:00
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Simon Wright wrote:

> Anders Wirzenius <anders@no.email.thanks.invalid> writes:
> 
>> ... so one can ask why the design was not done the opposite way: If
>> you want to have the shell to expand, use an option (like find -x
>> *.adb), else the parameter is passed as such to the application.
> 
> That sounds a very odd design. The shell would have to parse the
> command line to see if there was an option requiring expansion. And
> what if -x already had a meaning to the program?

Actually the VMS *could* have done that as foreign commands or symbols are
defined using a meta language called CLD (Command Language Definition) [1].

Great design but never fully exploited - like most of VMS :-( .

Martin

[1] http://en.wikipedia.org/wiki/DIGITAL_Command_Language
-- 
mailto://krischik@users.sourceforge.net
Ada programming at: http://ada.krischik.com