Date: Fri, 07 Apr 2017 03:06:33 -0300 From: =?UTF-8?Q?Nilton_Jos=C3=A9_Rizzo?= <rizzo@i805.com.br> To: Garrett Wollman <wollman@hergotha.csail.mit.edu> Cc: freebsd-current@freebsd.org Subject: Re: problem with ls, not show a correct list Message-ID: <b9c828ee4f6e8fa57ba1056947783edc@i805.com.br> In-Reply-To: <201704070529.v375T5ux031766@hergotha.csail.mit.edu> References: <fe2da09242ff63acb0c62dd0519cfa1f@i805.com.br> <3a8b8ade882d1486aa41b448a9c83b6c@i805.com.br> <201704070529.v375T5ux031766@hergotha.csail.mit.edu>
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Em 2017-04-07 02:29, Garrett Wollman escreveu:
> In article <3a8b8ade882d1486aa41b448a9c83b6c@i805.com.br> you write:
>>
>>
>> It's a terrible!!!! Is it a locale bug? Look!
>>
>> % locale
>> LANG=pt_BR.UTF-8
>> % touch E
>> % ls -l [a-z]*
>> -rw-r--r-- 1 rizzo wheel 0 7 abr 02:06 E
>
> No, it's the specification of how character ranges in glob(3) and
> fnmatch(3) work. In effect, character ranges like [a-z] must be
> treated as ranges of *collating elements*, not byte ranges, and in
> your locale, <a> and <A> are considered to be the same collating
> element, so [a-z] matches both upper- and lower-case Latin letters.
> This is documented, very obliquely, in sh(1), which also tells you the
> workaround:
>
> a character class. A character class matches any of the
> characters
> between the square brackets. A locale-dependent range of
> characters may
> be specified using a minus sign. A named class of characters (see
> wctype(3)) may be specified by surrounding the name with `[:' and
> `:]'.
> For example, `[[:alpha:]]' is a shell pattern that matches a
> single let-
> ter.
>
> So, to match only lower-case letters regardless of your current locale
> setting, you must use the correct character class:
>
> $ locale
> LANG=pt_BR.UTF-8
> LC_CTYPE="pt_BR.UTF-8"
> LC_COLLATE="pt_BR.UTF-8"
> LC_TIME="pt_BR.UTF-8"
> LC_NUMERIC="pt_BR.UTF-8"
> LC_MONETARY="pt_BR.UTF-8"
> LC_MESSAGES="pt_BR.UTF-8"
> LC_ALL=
> $ ls
> D E F a b c
> $ ls [[:lower:]]*
> a b c
>
> The same applies to character class ranges in regular expressions, not
> just glob(3) patterns.
>
> -GAWollman
It's only work in SH, in C shell (or tcsh) not work
and it's not work if I need to do this:
I think this not correct.
% setenv LANG C
% echo "Using C " && ls && echo "---" && ls [a-c,k-m]*
Using C
A a d g j m p s v
y
D b e h k n q t w
z
E c f i l o r u x
---
a b c k l m
% setenv LANG pt_BR.UTF-8
% echo "Using pt_BR.UTF-8" && ls && echo "---" && ls [a-c,k-m]*
Using pt_BR.UTF-8
a c e g j m p s v
y
A d E h k n q t w
z
b D f i l o r u x
---
a A b c k l m
% sh
$ ls [a-c,k-l]*
a A b c k l
$ ls [[:lower:]a-c,k-l]*
a c f i l o r u x
A d g j m p s v y
b e h k n q t w z
If I'll use the rm command I'll erase file that not match with my
selection.
Imagine if I has a script to work in batch mode and it's occur, can be a
too
dangerous.
--
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* http://cursos.ufrrj.br/grad/sistemas/ *
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