Date:Thu, 18 May 2023 22:14:28 -0400
From:"Dale R. Worley"
Message-ID: <874jo9kqyj@hobgoblin.ariadne.com>
| Chet Ramey writes:
| > Bash allows the close brace to be joined to the remaining
| > characters in the word without being followed by a shell metacha
Date:Thu, 18 May 2023 14:07:32 -0400
From:Chet Ramey
Message-ID:
| This isn't a problem, and is a red herring. The code that manages that list
| makes sure to keep as many jobs in the list as POSIX requires, subject to
| the maxchild resource limit.
That is go
'C ..'
' ..'
'| ..'
.. i dont get it
On Mon, May 15, 2023, 19:35 Chet Ramey wrote:
> The latest devel branch push has the initial implementation of `nofork'
> command substitution. The excerpt from the info manual describing it is
> appended.
>
> Please test it out, and find the places I missed
On Fri, May 19, 2023 at 01:36:44PM +0200, alex xmb ratchev wrote:
> 'C ..'
> ' ..'
> '| ..'
>
> .. i dont get it
Yeah, the wording isn't ideal. I'd start it out like this:
${ COMMAND; }
${| COMMAND; }
Execute COMMAND in the current execution environment
The first form (where the c
On Fri, May 19, 2023, 13:54 Greg Wooledge wrote:
> On Fri, May 19, 2023 at 01:36:44PM +0200, alex xmb ratchev wrote:
> > 'C ..'
> > ' ..'
> > '| ..'
> >
> > .. i dont get it
>
> Yeah, the wording isn't ideal. I'd start it out like this:
>
yea better ..
${ COMMAND; }
> ${| COMMAND; }
>
On Fri, May 19, 2023, 14:25 alex xmb ratchev wrote:
>
>
> On Fri, May 19, 2023, 13:54 Greg Wooledge wrote:
>
>> On Fri, May 19, 2023 at 01:36:44PM +0200, alex xmb ratchev wrote:
>> > 'C ..'
>> > ' ..'
>> > '| ..'
>> >
>> > .. i dont get it
>>
>> Yeah, the wording isn't ideal. I'd start it out l
On Fri, May 19, 2023 at 02:25:15PM +0200, alex xmb ratchev wrote:
> On Fri, May 19, 2023, 13:54 Greg Wooledge wrote:
>
> > On Fri, May 19, 2023 at 01:36:44PM +0200, alex xmb ratchev wrote:
> > > 'C ..'
> > > ' ..'
> > > '| ..'
> > >
> > > .. i dont get it
> >
> > Yeah, the wording isn't ideal. I
On 5/19/23 6:24 AM, Robert Elz wrote:
Date:Thu, 18 May 2023 14:07:32 -0400
From:Chet Ramey
Message-ID:
| This isn't a problem, and is a red herring. The code that manages that list
| makes sure to keep as many jobs in the list as POSIX requires, subject to
On 5/18/23 9:58 PM, Dale R. Worley wrote:
Ángel writes:
I suggest:
There is an alternate form of command substitution:
${ COMMAND; }
and clarify later the other variants in addition to a space:
The character following the open brace must be a space, tab,
newline, '(', or '|
On 5/18/23 10:14 PM, Dale R. Worley wrote:
Chet Ramey writes:
Bash allows the close brace to be joined to the remaining
characters in the word without being followed by a shell metacharacter
as a reserved word would usually require.
I had to read this a couple of times to figure out what it m
On Fri, May 19, 2023, 14:55 Greg Wooledge wrote:
> On Fri, May 19, 2023 at 02:25:15PM +0200, alex xmb ratchev wrote:
> > On Fri, May 19, 2023, 13:54 Greg Wooledge wrote:
> >
> > > On Fri, May 19, 2023 at 01:36:44PM +0200, alex xmb ratchev wrote:
> > > > 'C ..'
> > > > ' ..'
> > > > '| ..'
> > >
hello ..
On Fri, May 19, 2023, 16:29 Chet Ramey wrote:
> On 5/18/23 10:14 PM, Dale R. Worley wrote:
> > Chet Ramey writes:
> >> Bash allows the close brace to be joined to the remaining
> >> characters in the word without being followed by a shell metacharacter
> >> as a reserved word would usu
On 5/19/23 6:11 AM, Robert Elz wrote:
Date:Thu, 18 May 2023 22:14:28 -0400
From:"Dale R. Worley"
Message-ID: <874jo9kqyj@hobgoblin.ariadne.com>
| Chet Ramey writes:
| > Bash allows the close brace to be joined to the remaining
| > characters in the
On Fri, May 19, 2023, 18:04 Chet Ramey wrote:
> On 5/19/23 6:11 AM, Robert Elz wrote:
> > Date:Thu, 18 May 2023 22:14:28 -0400
> > From:"Dale R. Worley"
> > Message-ID: <874jo9kqyj@hobgoblin.ariadne.com>
> >
> >| Chet Ramey writes:
> >| > Bash allows
On Fri, May 19, 2023, 18:35 alex xmb ratchev wrote:
>
>
> On Fri, May 19, 2023, 18:04 Chet Ramey wrote:
>
>> On 5/19/23 6:11 AM, Robert Elz wrote:
>> > Date:Thu, 18 May 2023 22:14:28 -0400
>> > From:"Dale R. Worley"
>> > Message-ID: <874jo9kqyj@hobgoblin.aria
Date:Fri, 19 May 2023 12:03:51 -0400
From:Chet Ramey
Message-ID: <0a85095a-1665-d936-b4fa-118dd158e...@case.edu>
| Maybe, and certainly possible, but a more likely use is just a simple
| assignment to REPLY.
In such cases, the value to be assigned needs to come
is there a difference between } and ;} / ' }'
On Fri, May 19, 2023, 20:43 Robert Elz wrote:
> Date:Fri, 19 May 2023 12:03:51 -0400
> From:Chet Ramey
> Message-ID: <0a85095a-1665-d936-b4fa-118dd158e...@case.edu>
>
>
> | Maybe, and certainly possible, but a more lik
On Fri, May 19, 2023, 20:43 Robert Elz wrote:
> Date:Fri, 19 May 2023 12:03:51 -0400
> From:Chet Ramey
> Message-ID: <0a85095a-1665-d936-b4fa-118dd158e...@case.edu>
>
>
> | Maybe, and certainly possible, but a more likely use is just a simple
> | assignment to RE
On Fri, May 19, 2023 at 06:35:50PM +0200, alex xmb ratchev wrote:
> so that i understand ,
>
> var=${ awk ... }
There's no reason to use this new thing if you're calling awk, because
awk is an external program. You might as well just use var=$( awk ... )
instead.
Either way, you're going to for
On Fri, May 19, 2023, 21:11 Greg Wooledge wrote:
> On Fri, May 19, 2023 at 06:35:50PM +0200, alex xmb ratchev wrote:
> > so that i understand ,
> >
> > var=${ awk ... }
>
> There's no reason to use this new thing if you're calling awk, because
> awk is an external program. You might as well just
I don't think this ever made it to the list.--- Begin Message ---
On 5/16/23 5:40 PM, Ángel wrote:
On 2023-05-15 at 13:35 -0400, Chet Ramey wrote:
There is an alternate form of command substitution:
${C COMMAND; }
I find this description confusing, as it looks like a literal 'C'.
On Fri, May 19, 2023, 22:08 Chet Ramey wrote:
> I don't think this ever made it to the list.
>
>
> -- Forwarded message --
> From: Chet Ramey
> To: "Ángel"
> Cc: chet.ra...@case.edu
> Bcc:
> Date: Wed, 17 May 2023 11:53:46 -0400
> Subject: Re: nofork command substitution
> On 5/
On 5/19/23 7:36 AM, alex xmb ratchev wrote:
'C ..'
' ..'
'| ..'
.. i dont get it
The `C' is the result of how info renders @var, used to indicate meta-
syntactic variables (COMMAND is another).
In other formats, it would be more apparent that it's not a literal `C'
and that it's like the `COM
On 5/19/23 11:56 AM, alex xmb ratchev wrote:
Command substitution is a word expansion; word expansions are performed on
words; command substitution occurs as part of a word. That all seems
self-evident. The only reason to mention it is the quirk required to have
the close brace a
On 5/19/23 12:39 PM, alex xmb ratchev wrote:
after ${| set -- 1 2 3 } , 1 2 3 are no more .. right ?
;} or space} to end .. ?
The portion of the documentation I posted says:
"the close brace must be in a position where a reserved word may appear
(i.e., preceded by a command terminator s
This will be a very neat feature to have. One thing I'm excited about
is the ability to cleanly perform assignments during prompt expansion
(e.g. to capture information during PS0 or PS4 expansion).
Something I suspect people will complain about is that this change
makes some polyglot zsh/bash sc
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