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Subject: bug#16012: 24.3.50; Multi-line shell commands appear as one-liners in the history
Resent-From: "Sebastien Vauban" <sva-news@HIDDEN>
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From: "Sebastien Vauban" <sva-news@HIDDEN>
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Date: Sat, 30 Nov 2013 10:50:39 +0100
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Hello,

When typing multi-line commands (on purpose, or because of a missing
component), they end up as standalone lines in the shell command history:

> ls \
> *.html

Recalling the previous command will just show "*.html", not "ls \\n*.html".

Is there a solution to this?

Best regards,
Sebastien Vauban

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To: "Sebastien Vauban" <sva-news@HIDDEN>
Subject: bug#16012: Acknowledgement (24.3.50; Multi-line shell commands
 appear as one-liners in the history)
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Subject: bug#16012: 24.3.50; Multi-line shell commands appear as one-liners in the history
Resent-From: Stefan Monnier <monnier@HIDDEN>
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From: Stefan Monnier <monnier@HIDDEN>
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Date: Sun, 01 Dec 2013 16:13:39 -0500
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 "Sat, 30 Nov 2013 10:50:39 +0100")
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>> ls \
>> *.html
> Recalling the previous command will just show "*.html", not "ls \\n*.html".

Right, currently shell-mode has no idea that these were two lines of the
same command.  The semantics of a terminating backslash completely
eludes it.

> Is there a solution to this?

A patch for shell.el would probably do it, assuming it's the right patch ;-)


        Stefan

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Subject: bug#16012: Multi-line shell commands appear as one-liners in the history
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Date: Mon, 25 Aug 2014 20:45:52 +0200
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 Content preview:  Hello, >> ls \ >> *.html >> >> Recalling the previous command
    will just show "*.html", not "ls >>\\n*.html". > > Right, currently shell-mode
    has no idea that these were two lines of > the same command. The semantics
    of a terminating backslash completely > eludes it. > >> Is there a solution
    to this? > > A patch for shell.el would probably do it, assuming it's the
    right > patch ;-) [...] 
 
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Hello,

>> ls \
>> *.html
>>
>> Recalling the previous command will just show "*.html", not "ls
>>\\n*.html".
>
> Right, currently shell-mode has no idea that these were two lines of
> the same command.  The semantics of a terminating backslash completely
> eludes it.
>
>> Is there a solution to this?
>
> A patch for shell.el would probably do it, assuming it's the right
> patch ;-)

I've just read notes about "Comint Patch":

  =E2=95=AD=E2=94=80=E2=94=80=E2=94=80=E2=94=80
  =E2=94=82 If you enter a multi-line SQL statement in an SQLi buffer, you =
can
  =E2=94=82 retrieve it as a multi-line command from the MinibufferHistory.=
 Not so
  =E2=94=82 when you exit Emacs and restart it at a later date: As you exit=
 SQLi
  =E2=94=82 mode the command history is written to a file; when you enter S=
QLi mode
  =E2=94=82 again the history is loaded one command per line. If you entered
  =E2=94=82 multi-line commands, each line of those commands will end up as=
 one
  =E2=94=82 command in the input history of your new session.
  =E2=94=82=20
  =E2=94=82 This patch will be in Emacs 21.
  =E2=95=B0=E2=94=80=E2=94=80=E2=94=80=E2=94=80

See http://www.emacswiki.org/emacs-es/ComintPatched

Aren't we talking of this bug?  If yes, why isn't it yet in Emacs, then?

Best regards,
  Seb

--=20
Sebastien Vauban

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Subject: bug#16012: 24.3.50; Multi-line shell commands appear as one-liners in the history
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 Content preview:  Sebastien Vauban <sva-news@HIDDEN> writes: >>> ls
 \ >>> *.html >>> >>> Recalling the previous command will just show "*.html",
 not "ls >>>\\n*.html". I can confirm that this behaviour is still present
 in Emacs 28. 
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Sebastien Vauban <sva-news@HIDDEN> writes:

>>> ls \
>>> *.html
>>>
>>> Recalling the previous command will just show "*.html", not "ls
>>>\\n*.html".

I can confirm that this behaviour is still present in Emacs 28.

> I've just read notes about "Comint Patch":
>
>   =E2=95=AD=E2=94=80=E2=94=80=E2=94=80=E2=94=80
>   =E2=94=82 If you enter a multi-line SQL statement in an SQLi buffer, yo=
u can
>   =E2=94=82 retrieve it as a multi-line command from the MinibufferHistor=
y. Not so
>   =E2=94=82 when you exit Emacs and restart it at a later date: As you ex=
it SQLi
>   =E2=94=82 mode the command history is written to a file; when you enter=
 SQLi mode
>   =E2=94=82 again the history is loaded one command per line. If you ente=
red
>   =E2=94=82 multi-line commands, each line of those commands will end up =
as one
>   =E2=94=82 command in the input history of your new session.
>   =E2=94=82=20
>   =E2=94=82 This patch will be in Emacs 21.
>   =E2=95=B0=E2=94=80=E2=94=80=E2=94=80=E2=94=80
>
> See http://www.emacswiki.org/emacs-es/ComintPatched
>
> Aren't we talking of this bug?  If yes, why isn't it yet in Emacs, then?

Presumably nobody submitted it -- and that URL doesn't exist any more.
Does anybody have the patch in question?

--=20
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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