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From: Junio C Hamano <gitster@pobox•com>
To: Jiang Xin <worldhello.net@gmail•com>
Cc: "Git List" <git@vger•kernel.org>, Tvangeste <i.4m.l33t@yandex•ru>,
	"Johannes Sixt" <j6t@kdbg•org>,
	"Karsten Blees" <karsten.blees@gmail•com>,
	"Torsten Bögershausen" <tboegi@web•de>
Subject: Re: [PATCH v3 2/3] relative_path should honor DOS and UNC paths
Date: Wed, 18 Sep 2013 09:00:53 -0700	[thread overview]
Message-ID: <xmqq4n9iw24q.fsf@gitster.dls.corp.google.com> (raw)
In-Reply-To: <CANYiYbF1XwKbD13AMZhE1c4hGMqVzpH9hZ-J8Gk-8AVFUCnn0g@mail.gmail.com> (Jiang Xin's message of "Wed, 18 Sep 2013 17:02:12 +0800")

Jiang Xin <worldhello.net@gmail•com> writes:

> 2013/9/18 Junio C Hamano <gitster@pobox•com>:
>>> +     if (!is_dir_sep(*path) || !is_dir_sep(*(path+1)) || is_dir_sep(*(path+2)))
>>> +             return 0;
>> If path[1] == '\0', it would be !is_dir_sep() and we end up
>> inspecting past the end of the string?
>
> The funciton "is_unc_path" will return false (0), if path is
> "", "/", "//", "///three/slashes/", or "/usr/local".
> So the problem is ?

If path[1] == '\0' (e.g. path="/"), !is_dir_sep(path[1]) is true,
not false (as I misread earlier), so we hit an early return and will
not peek path[2].  So no problem.  Sorry for the noise.

But I agree with J6t and Torsten in near-by thread that the simpler
one that does not worry about // should be done as a separate patch
and //, if we decide to do it, should build on top.

Thanks.

  reply	other threads:[~2013-09-18 16:01 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-10 13:14 Regression in e02ca72: git svn rebase is broken on Windows Tvangeste
2013-09-10 16:13 ` Johannes Schindelin
2013-09-10 17:43   ` Tvangeste
2013-09-10 18:02     ` Johannes Schindelin
2013-09-10 20:53       ` Tvangeste
2013-09-10 16:52 ` Johannes Sixt
2013-09-10 17:44   ` Tvangeste
2013-09-10 17:06 ` Junio C Hamano
2013-09-10 22:17   ` Karsten Blees
2013-09-11  4:41     ` Jiang Xin
2013-09-11  3:19   ` Jiang Xin
2013-09-11  5:43     ` Johannes Sixt
2013-09-12  9:12   ` [PATCH 1/2] relative_path should honor dos_drive_prefix Jiang Xin
2013-09-12  9:32     ` Tvangeste
2013-09-12 14:13     ` Torsten Bögershausen
2013-09-12 15:48       ` Junio C Hamano
2013-09-12 17:22       ` Johannes Sixt
2013-09-12 19:11         ` Junio C Hamano
2013-09-13  4:55           ` Jiang Xin
2013-09-13  5:53             ` Junio C Hamano
2013-09-17  8:24               ` Jiang Xin
2013-09-17  8:30                 ` [PATCH v3 1/3] test: use unambigous leading path (/foo) for mingw Jiang Xin
2013-09-17  8:30                 ` [PATCH v3 2/3] relative_path should honor DOS and UNC paths Jiang Xin
2013-09-17 16:12                   ` Junio C Hamano
2013-09-18  9:02                     ` Jiang Xin
2013-09-18 16:00                       ` Junio C Hamano [this message]
     [not found]                     ` <5239BA98.9000205@gmail.com>
2013-09-18 15:09                       ` Torsten Bögershausen
2013-09-17  8:30                 ` [PATCH v3 3/3] Use simpler relative_path when set_git_dir Jiang Xin
2013-09-17 19:32                 ` [PATCH 1/2] relative_path should honor dos_drive_prefix Johannes Sixt
2013-09-18 14:29                   ` Torsten Bögershausen
2013-09-20  1:26                   ` Jiang Xin
2013-09-20  2:38                     ` [PATCH v4 0/3] relative path regression fix Jiang Xin
2013-09-20  2:38                       ` [PATCH v4 1/3] test: use unambigous leading path (/foo) for mingw Jiang Xin
2013-10-10 20:32                         ` Sebastian Schuberth
2013-10-14  1:33                           ` Jiang Xin
2013-10-14  2:29                           ` [PATCH v5 0/3] relative path regression fix Jiang Xin
2013-10-14  2:29                             ` [PATCH v5 1/3] test: use unambigous leading path (/foo) for MSYS Jiang Xin
2013-10-14  6:50                               ` Sebastian Schuberth
2013-10-14 19:40                               ` Eric Sunshine
2013-10-14  2:29                             ` [PATCH v5 2/3] relative_path should honor dos-drive-prefix Jiang Xin
2013-10-14  2:29                             ` [PATCH v5 3/3] Use simpler relative_path when set_git_dir Jiang Xin
2013-09-20  2:38                       ` [PATCH v4 2/3] relative_path should honor dos-driver-prefix Jiang Xin
2013-10-10 20:34                         ` Sebastian Schuberth
2013-09-20  2:38                       ` [PATCH v4 3/3] Use simpler relative_path when set_git_dir Jiang Xin
2013-09-13 13:59             ` [PATCH 1/2] relative_path should honor dos_drive_prefix Torsten Bögershausen
2013-09-12 15:45     ` Karsten Blees
2013-09-12  9:12   ` [PATCH 2/2] Use simpler relative_path when set_git_dir Jiang Xin
2013-09-12 17:36     ` Johannes Sixt
2013-09-13  5:08   ` [PATCH v2 0/3] fixes for relative_path Jiang Xin
2013-09-13  5:08     ` [PATCH v2 1/3] test: use unambigous leading path (/foo) for mingw Jiang Xin
2013-09-13 19:51       ` Junio C Hamano
2013-09-14  6:52         ` Torsten Bögershausen
2013-09-17 16:19           ` Junio C Hamano
2013-09-13  5:08     ` [PATCH v2 2/3] relative_path should honor dos_drive_prefix Jiang Xin
2013-09-14  6:11       ` Torsten Bögershausen
2013-09-13  5:08     ` [PATCH v2 3/3] Use simpler relative_path when set_git_dir Jiang Xin

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