Hi Herbert, please see
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=384197
On Tue, Aug 22, 2006 at 03:29:35PM +0100, Colin Watson wrote:
> $ [ '!' != '*' ]
> [: 1: *: unexpected operator
>
> POSIX says of the 3-argument case for test(1):
>
> 3 arguments:
>
> * If $2 is a binary primary, perform the binary test of $1 and $3.
> * If $1 is '!', negate the two-argument test of $2 and $3.
> * [XSI] If $1 is '(' and $3 is ')', perform the unary test of $2.
> * Otherwise, produce unspecified results.
>
> It seems to me that dash performs the first two rules in the wrong
> order. (POSIX doesn't explicitly say that these rules are ordered, I
> suppose, but anything else seems to be a tortuous interpretation.)
Yes, I agree. Treating ! the same as other BINOPs should fix this.
---
src/bltin/test.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/src/bltin/test.c b/src/bltin/test.c
index f16c819..33a4acd 100644
--- a/src/bltin/test.c
+++ b/src/bltin/test.c
@@ -82,7 +82,6 @@ enum token {
enum token_types {
UNOP,
BINOP,
- BUNOP,
BBINOP,
PAREN
};
@@ -125,7 +124,7 @@ static struct t_op {
{"-nt", FILNT, BINOP},
{"-ot", FILOT, BINOP},
{"-ef", FILEQ, BINOP},
- {"!", UNOT, BUNOP},
+ {"!", UNOT, UNOP},
{"-a", BAND, BBINOP},
{"-o", BOR, BBINOP},
{"(", LPAREN, PAREN},
--
1.4.2.3
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