From: Junio C Hamano <gitster@pobox.com>
Date: Thu, 04 Feb 2021 18:58:29 GMT
Subject: Re: [PATCH v4 2/3] range-diff/format-patch: handle commit ranges other than A..B
Message-ID: <xmqqtuqr64oa.fsf@gitster.c.googlers.com>
In-Reply-To: <448e6a64fa157990fcc973ce2fe4a9fc2ba1ab32.1612431093.git.gitgitgadget@gmail.com>

"Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>
writes:

> +test_expect_success 'A^! and A^-<n> (unmodified)' '
> +	git range-diff --no-color topic^! unmodified^-1 >actual &&
> +	cat >expect <<-EOF &&
> +	1:  $(test_oid t4) = 1:  $(test_oid u4) s/12/B/
> +	EOF
> +	test_cmp expect actual
> +'

Now we actually parse the single-token range, instead of relying on
"does it have dot-dot" heuristics, we can make sure that we reject

    "HEAD^{/^string with .. in it}"

as "not a range with negative and positive ends".