* [BUG][REPORT] Possible error in on man 7 glob
@ 2016-08-08 23:29 Arnaud Gaillard
[not found] ` <CACH3jogB0J+3bvBSsSS=fBkqO=AydnVNdcAA-pijhK1bBOvKWA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
0 siblings, 1 reply; 2+ messages in thread
From: Arnaud Gaillard @ 2016-08-08 23:29 UTC (permalink / raw)
To: mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w
Cc: linux-man-u79uwXL29TY76Z2rM5mHXA, l-hour_q-ZrNlpQwM5lQ
Hello,
the `man 7 glob` states that:
>A range cannot contain an explicit '/' character;
> this would lead to a syntax error.
What I understand from this is that :
> sh$ echo [/-a]
> sh$ echo [a-/]
should be producing syntax errors. However, this is not the case,
as these just print out literally.
> sh$ uname -a
Linux caml 3.19.0-25-generic #26~14.04.1-Ubuntu SMP \
Fri Jul 24 21:16:20 UTC \
2015 x86_64 x86_64 x86_64 GNU/Linux \
This was tested on:
* bash: GNU bash, version 4.3.11(1)-release (x86_64-pc-linux-gnu)
* tcsh: tcsh 6.19.00 (Astron)
* ksh: sh (AT&T Research) 93u
Sincerely yours,
--
Arnaud GAILLARD
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [BUG][REPORT] Possible error in on man 7 glob
[not found] ` <CACH3jogB0J+3bvBSsSS=fBkqO=AydnVNdcAA-pijhK1bBOvKWA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
@ 2016-08-09 5:25 ` Michael Kerrisk (man-pages)
0 siblings, 0 replies; 2+ messages in thread
From: Michael Kerrisk (man-pages) @ 2016-08-09 5:25 UTC (permalink / raw)
To: Arnaud Gaillard; +Cc: linux-man, l-hour_q-ZrNlpQwM5lQ
Hello Arnaud,
On 9 August 2016 at 11:29, Arnaud Gaillard <arnaud.mgaillard-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Hello,
>
> the `man 7 glob` states that:
>
>>A range cannot contain an explicit '/' character;
>> this would lead to a syntax error.
>
> What I understand from this is that :
>
>> sh$ echo [/-a]
>> sh$ echo [a-/]
>
> should be producing syntax errors. However, this is not the case,
> as these just print out literally.
>
>> sh$ uname -a
> Linux caml 3.19.0-25-generic #26~14.04.1-Ubuntu SMP \
> Fri Jul 24 21:16:20 UTC \
> 2015 x86_64 x86_64 x86_64 GNU/Linux \
>
> This was tested on:
>
> * bash: GNU bash, version 4.3.11(1)-release (x86_64-pc-linux-gnu)
> * tcsh: tcsh 6.19.00 (Astron)
> * ksh: sh (AT&T Research) 93u
Further down the page, there is a statement: "However, POSIX requires
that a wildcard pattern is left unchanged when it is syntactically
incorrect". So, the point is that a syntactically incorrect pattern
doesn't cause an error, it simply doesn't glob. But I agree that the
text you cite is a little confusing. So I changed the text there to:
A range containing an explicit '/' character is
syntactically incorrect. (POSIX requires that syntactically incorrect
patterns are left unchanged.)
Hopefully, that lessens the scope for misreading.
Cheers,
Michael
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
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2016-08-08 23:29 [BUG][REPORT] Possible error in on man 7 glob Arnaud Gaillard
[not found] ` <CACH3jogB0J+3bvBSsSS=fBkqO=AydnVNdcAA-pijhK1bBOvKWA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-08-09 5:25 ` Michael Kerrisk (man-pages)
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