From: Eli Zaretskii <eliz@gnu.org>
To: Jason Rumney <jasonr@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: Fixing Windows and DOS command line argument quoting
Date: Mon, 25 Apr 2011 12:15:17 +0300 [thread overview]
Message-ID: <83sjt6adzu.fsf@gnu.org> (raw)
In-Reply-To: <4DB537BB.1090205@gnu.org>
> Date: Mon, 25 Apr 2011 16:58:35 +0800
> From: Jason Rumney <jasonr@gnu.org>
>
> On 25/04/2011 16:49, Daniel Colascione wrote:
>
> > 1. we can have cmdproxy level-two-dequote the supplied command line
> > before giving it to CreateProcess, or
> >
> > 2. we can remove optimization described above and have cmdproxy always
> > run the command interpreter.
> >
> > I favor the second option: cmd starts very quickly, and we don't save
> > much time by bypassing it.
>
> IIRC, this "optimisation" isn't about saving time, but about avoiding
> limitations in cmd.exe where possible.
Indeed. One such limitation (but not the only one) is the command
length limitation: cmd.exe supports only 8K, while CreateProcess can
support upto 32K (more if we ever move to using the Unicode
interfaces).
> Another possibility is to make the decision whether to use cmd.exe or
> not based on the presence of "level 2" metacharacters rather than "level 1".
This is what I would prefer. Daniel, is this feasible?
next prev parent reply other threads:[~2011-04-25 9:15 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-25 2:09 Fixing Windows and DOS command line argument quoting Daniel Colascione
2011-04-25 6:41 ` Eli Zaretskii
2011-04-25 8:49 ` Daniel Colascione
2011-04-25 8:58 ` Jason Rumney
2011-04-25 9:15 ` Eli Zaretskii [this message]
2011-04-25 9:22 ` Daniel Colascione
2011-04-25 17:56 ` Daniel Colascione
2011-04-25 18:47 ` Eli Zaretskii
2011-04-26 10:44 ` Daniel Colascione
2011-04-26 17:50 ` Eli Zaretskii
2011-04-25 9:35 ` Eli Zaretskii
2011-04-25 18:24 ` Daniel Colascione
2011-04-25 18:48 ` Eli Zaretskii
-- strict thread matches above, loose matches on Subject: below --
2011-04-27 0:58 Ben Key
2011-04-27 1:25 ` Daniel Colascione
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