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From: Junio C Hamano <gitster@pobox.com>
To: "Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com>
Cc: git@vger.kernel.org,  Patrick Steinhardt <ps@pks.im>,
	 Elijah Newren <newren@gmail.com>
Subject: Re: [PATCH v2 1/2] object-name: fix resolution of object names containing curly braces
Date: Sat, 04 Jan 2025 09:26:45 -0800	[thread overview]
Message-ID: <xmqq34hy4hii.fsf@gitster.g> (raw)
In-Reply-To: <13f68bebe90549ba19452f12abb6fea41c2517fb.1735949870.git.gitgitgadget@gmail.com> (Elijah Newren via GitGitGadget's message of "Sat, 04 Jan 2025 00:17:49 +0000")

"Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com> writes:

>  	for (cp = name, bracket_depth = 0; *cp; cp++) {
> -		if (*cp == '{')
> +		if (*(cp+1) == '{' && (*cp == '@' || *cp == '^')) {
> +			cp++;
>  			bracket_depth++;

Checking cp[1] before even knowing if cp[0] is the end of the string
(hence cp[1] is an out of bounds access) smells fishy.  If it were
something like ...

	if (cp[0] && strchr("@^", cp[0]) && cp[1] == '{')

... it may be a bit more palatable, perhaps?  At least writing it
this way we can easily scale when we find the third character we
need to special case, hopefully, but again, I do prefer if we can
find a solution that does not have such an intimate knowledge about
"@^", which I just failed to do here X-<.

Thanks.


  reply	other threads:[~2025-01-04 17:26 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-01  2:53 [PATCH] object-name: fix resolution of object names containing curly braces Elijah Newren via GitGitGadget
2025-01-01 17:00 ` Junio C Hamano
2025-01-03 23:34   ` Elijah Newren
2025-01-04  2:52     ` Junio C Hamano
2025-01-03  8:16 ` Patrick Steinhardt
2025-01-03 15:46   ` Junio C Hamano
2025-01-03 23:43   ` Elijah Newren
2025-01-04  0:17 ` [PATCH v2 0/2] " Elijah Newren via GitGitGadget
2025-01-04  0:17   ` [PATCH v2 1/2] " Elijah Newren via GitGitGadget
2025-01-04 17:26     ` Junio C Hamano [this message]
2025-01-04 18:54       ` Elijah Newren
2025-01-05 16:14     ` Junio C Hamano
2025-01-04  0:17   ` [PATCH v2 2/2] object-name: be more strict in parsing describe-like output Elijah Newren via GitGitGadget
2025-01-04 14:35   ` [PATCH v2 0/2] object-name: fix resolution of object names containing curly braces Junio C Hamano
2025-01-04 15:55     ` Elijah Newren
2025-01-04 17:51       ` Junio C Hamano
2025-01-04 18:55         ` Elijah Newren
2025-01-06 17:29   ` Junio C Hamano
2025-01-06 19:26     ` Elijah Newren
2025-01-06 20:38       ` Junio C Hamano
2025-01-13 17:13   ` [PATCH v3 0/2] object-name: fix a pair of object name resolution issues Elijah Newren via GitGitGadget
2025-01-13 17:13     ` [PATCH v3 1/2] object-name: fix resolution of object names containing curly braces Elijah Newren via GitGitGadget
2025-01-13 17:13     ` [PATCH v3 2/2] object-name: be more strict in parsing describe-like output Elijah Newren via GitGitGadget
2025-01-13 18:15     ` [PATCH v3 0/2] object-name: fix a pair of object name resolution issues Junio C Hamano
2025-01-13 19:26       ` Elijah Newren

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