GNU bug report logs - #20571
sed 4.2.2

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Massimo Masotti <max.mas <at> libero.it>
To: bug-sed <at> gnu.org
Subject: sed 4.2.2
Date: Thu, 14 May 2015 10:19:43 +0200 (CEST)

[Message part 1 (text/plain, inline)]

Good morning,

the file contains "8.25F, \n". I notice a strange behavior with this line:

sed -i -r 's/([0-9])F([,; \]\}\)])/\1\2/g'  file

while I'm expecting to get "8.25, \n", the content is not changed. To get the expected substitution, I must use:

sed -i -r 's/([0-9])F([,; \}\)])/\1\2/g'  file

as if it is not legal to use the escaped character  ']'.

Thanks for your time; I apologize if I'm wrong.

Best Regards


Massimo Masotti - Italy

[Message part 2 (text/html, inline)]

Message #8 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Davide Brini <dave_br <at> gmx.com>
To: bug-sed <at> gnu.org
Subject: Re: bug#20571: sed 4.2.2
Date: Thu, 14 May 2015 12:28:41 +0200

On Thu, 14 May 2015 10:19:43 +0200 (CEST), Massimo Masotti
<max.mas <at> libero.it> wrote:

> Good morning,
> 
> the file contains "8.25F, \n". I notice a strange behavior with this line:
> 
> sed -i -r 's/([0-9])F([,; \]\}\)])/\1\2/g'  file
> 
> while I'm expecting to get "8.25, \n", the content is not changed. To get
> the expected substitution, I must use:
> 
> sed -i -r 's/([0-9])F([,; \}\)])/\1\2/g'  file
> 
> as if it is not legal to use the escaped character  ']'.

If you want to use a "]" inside a bracket expression, specify it as the
very first character (after the ^ negation, if present, but that's not
your case). And you don't need to escape } and ) inside the bracket
expression, so

sed -i -r 's/([0-9])F([],; })])/\1\2/g'  file

Here what's inside the [] is 

],; })


-- 
D.

Message #13 received at 20571-done <at> debbugs.gnu.org (full text, mbox):

From: Jim Meyering <jim <at> meyering.net>
To: Davide Brini <dave_br <at> gmx.com>
Cc: 20571-done <at> debbugs.gnu.org
Subject: Re: bug#20571: sed 4.2.2
Date: Thu, 14 May 2015 08:05:54 -0700

tags 20571 notabug
thanks

On Thu, May 14, 2015 at 3:28 AM, Davide Brini <dave_br <at> gmx.com> wrote:
> On Thu, 14 May 2015 10:19:43 +0200 (CEST), Massimo Masotti
> <max.mas <at> libero.it> wrote:
>
>> Good morning,
>>
>> the file contains "8.25F, \n". I notice a strange behavior with this line:
>>
>> sed -i -r 's/([0-9])F([,; \]\}\)])/\1\2/g'  file
>>
>> while I'm expecting to get "8.25, \n", the content is not changed. To get
>> the expected substitution, I must use:
>>
>> sed -i -r 's/([0-9])F([,; \}\)])/\1\2/g'  file
>>
>> as if it is not legal to use the escaped character  ']'.
>
> If you want to use a "]" inside a bracket expression, specify it as the
> very first character (after the ^ negation, if present, but that's not
> your case). And you don't need to escape } and ) inside the bracket
> expression, so
>
> sed -i -r 's/([0-9])F([],; })])/\1\2/g'  file
>
> Here what's inside the [] is
>
> ],; })

Thanks for helping, Davide.
Massimo, I'm marking this as "notabug" and closing the auto-filed issue.

Message #16 received at 20571 <at> debbugs.gnu.org (full text, mbox):

From: Massimo Masotti <max.mas <at> libero.it>
To: <20571 <at> debbugs.gnu.org>
Subject: R: bug#20571: closed (Re: bug#20571: sed 4.2.2)
Date: Thu, 14 May 2015 17:18:13 +0200 (CEST)

Hi,

thanks for the explanation, even if a mathematical set, as it is inside [   ], 
would be position independent.

Kind Regards


Massimo Masotti


>----Messaggio originale----
>Da: help-debbugs <at> gnu.org
>Data: 14/05/2015 17.07
>A: "Massimo Masotti"<max.mas <at> libero.it>
>Ogg: bug#20571: closed (Re: bug#20571: sed 4.2.2)
>
>Your bug report
>
>#20571: sed 4.2.2
>
>which was filed against the sed package, has been closed.
>
>The explanation is attached below, along with your original report.
>If you require more details, please reply to 20571 <at> debbugs.gnu.org.
>
>-- 
>20571: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=20571
>GNU Bug Tracking System
>Contact help-debbugs <at> gnu.org with problems
>

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