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From: Junio C Hamano <gitster@pobox.com>
To: Christian Couder <christian.couder@gmail.com>
Cc: git <git@vger.kernel.org>, Christian Couder <chriscool@tuxfamily.org>
Subject: Re: [PATCH 1/3] git-compat-util: introduce skip_to_opt_val()
Date: Sun, 03 Dec 2017 14:48:59 -0800	[thread overview]
Message-ID: <xmqqfu8rig10.fsf@gitster.mtv.corp.google.com> (raw)
In-Reply-To: <CAP8UFD2OSsqzhyAL-QG1TOowB-xgbf=kC9wHre+FLc+0J1Xy+Q@mail.gmail.com> (Christian Couder's message of "Sun, 3 Dec 2017 21:34:29 +0100")

Christian Couder <christian.couder@gmail.com> writes:

> Anyway there is a design choice to be made. Adding a "const char
> *default" argument makes the function more generic,...

I didn't suggest anything of that sort, and I do not understand why
you are repeatedly talking about "default" that you considered and
rejected, as if it were an alternative viable option.  I agree that
"default" is not yet a good idea and it is a solution to a problem
that is not yet shown to exist.  

On the other hand, just assigning NULL to *arg when you did not see
a delimiting '=', on the other hand, is an alternative option that
is viable.

> .... I think setting
> "arg" to NULL increases the risk of crashes and makes it too easy to
> make "--key" and "--key=" behave differently which I think is not
> consistent and not intuitive.

So now this is very specific to the need of command line argument
parsing and is not a generic thing?  You cannot have your cake and
eat it too, though.


  reply	other threads:[~2017-12-03 22:49 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-03 17:04 [PATCH 1/3] git-compat-util: introduce skip_to_opt_val() Christian Couder
2017-12-03 17:04 ` [PATCH 2/3] index-pack: use skip_to_opt_val() Christian Couder
2017-12-03 17:04 ` [PATCH 3/3] diff: " Christian Couder
2017-12-07  0:16   ` Jacob Keller
2017-12-07  0:18     ` Jacob Keller
2017-12-07  6:26       ` Christian Couder
2017-12-03 18:45 ` [PATCH 1/3] git-compat-util: introduce skip_to_opt_val() Junio C Hamano
2017-12-03 20:34   ` Christian Couder
2017-12-03 22:48     ` Junio C Hamano [this message]
2017-12-04  7:59       ` Christian Couder
2017-12-04 13:35         ` Junio C Hamano

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