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bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed"
From: |
Noam Postavsky |
Subject: |
bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed" |
Date: |
Sat, 25 Nov 2017 13:50:46 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.90 (gnu/linux) |
Pierre Neidhardt <ambrevar@gmail.com> writes:
> Eli Zaretskii <eliz@gnu.org> writes:
>
>>> We could fallback to the external command if given arguments. This is
>>> being done currently for other commands like eshell/rm (for unrecognized
>>> arguments, that is).
>> That doesn't sound right to me (for rm as well): it will fail in
>> strange ways for systems where the external command is absent or
>> deficient.
Currently eshell falls back to external command for unrecognized
arguments when passing :external to eshell-eval-using-options. A quick
grep for :external brings up: rm, mkdir, rmdir, mv, cp, ln, cat, du,
time, env, ls.
>> Observe:
>>
>> ~/git/emacs/branch $ date 42
>> Wed Dec 31 19:00:42 1969
>> But
>> ~/git/emacs/branch $ *date 42
>> /bin/date: invalid date ‘42’
>>
>> So I'm not sure such a naïve solution is TRT in this case, because we
>> are losing valuable features by doing that,
So we could also check for an integer argument.
>> and those features are not
>> just an accident, they were intentionally included in Eshell.
Hmm, my impression of eshell is more like "throw a bunch of features at
the wall and see what sticks" but without the "see what sticks" part.
> The issue here is mostly my lack of awareness about what is an Elisp
> command and what is a system program.
>
> Maybe having different syntax highlighting for the "verb" depending on
> whether it's a system program or an Elisp command would help avoiding
> the pitfall.
>
> Is there a trivial way to do this? If not I'll work on it.
There is no such feature, as far as I know.
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Pierre Neidhardt, 2017/11/05
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Noam Postavsky, 2017/11/05
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Pierre Neidhardt, 2017/11/05
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Noam Postavsky, 2017/11/22
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Pierre Neidhardt, 2017/11/23
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Noam Postavsky, 2017/11/23
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Eli Zaretskii, 2017/11/23
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Pierre Neidhardt, 2017/11/25
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Michael Albinus, 2017/11/25
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Pierre Neidhardt, 2017/11/25
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed",
Noam Postavsky <=
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Eli Zaretskii, 2017/11/25
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Noam Postavsky, 2017/11/25
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Eli Zaretskii, 2017/11/25
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Noam Postavsky, 2017/11/25
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Eli Zaretskii, 2017/11/25
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", John Wiegley, 2017/11/25
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Eli Zaretskii, 2017/11/26
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", John Wiegley, 2017/11/26
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Eli Zaretskii, 2017/11/25
- bug#29157: 25.3; Eshell parsing fails sometimes, e.g. "date" and "sed", Pierre Neidhardt, 2017/11/25