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Date: Mon, 9 Aug 2021 15:16:58 +0100 (BST)
From: Peter Stephenson
To: koichi nakashima , zsh-workers@zsh.org
Message-ID: <835587636.777488.1628518618581@mail2.virginmedia.com>
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Subject: Re: [BUG] test ! "-o" ([ ! -o ]) exit status should be 1
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> On 09 August 2021 at 11:55 koichi nakashima wrote:
>=20
>=20
> In the following code, I expected the exit status to be 1.
> However, in zsh 5.0.3 and later, it was actually 0.
>=20
> $ zsh -c '[ ! -o ]; echo "$ZSH_VERSION: $?"'
> 4.3.17: 1
It's a little bizarre that we've actually got a test for this, and it's
deliberately set up this way. But I think the fix for this case is simple
=E2=80=94 more complicated expressions with "test" or "[", as opposed to "[=
[", can
go horribly wrong, but two arguments should be OK =E2=80=94 so I've just fl=
ipped
the test. It can't possibly be right that -a and -o are treated differentl=
y
in this context, can it?
pws
diff --git a/Src/parse.c b/Src/parse.c
index b09c7989a..be26112a5 100644
--- a/Src/parse.c
+++ b/Src/parse.c
@@ -2509,7 +2509,7 @@ par_cond_2(void)
=09 * In "test" compatibility mode, "! -a ..." and "! -o ..."
=09 * are treated as "[string] [and] ..." and "[string] [or] ...".
=09 */
-=09if (!(n_testargs > 1 && (check_cond(*testargs, "a") ||
+=09if (!(n_testargs > 2 && (check_cond(*testargs, "a") ||
=09=09=09=09 check_cond(*testargs, "o"))))
=09{
=09 condlex();
diff --git a/Test/C02cond.ztst b/Test/C02cond.ztst
index 5b105b2a0..4366b4142 100644
--- a/Test/C02cond.ztst
+++ b/Test/C02cond.ztst
@@ -380,7 +380,7 @@ F:scenario if you encounter it.
>0
>0
>1
->0
+>1
>0
>0
>1