From: Wilhelm Kirschbaum <wkirschbaum@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 64939@debbugs.gnu.org
Subject: bug#64939: 30.0.50; The default auto-mode-interpreter-regexp does not match env with flags
Date: Sun, 30 Jul 2023 11:38:06 +0200 [thread overview]
Message-ID: <87y1ix7myw.fsf@gmail.com> (raw)
In-Reply-To: <83y1iykn0q.fsf@gnu.org>
Eli Zaretskii <eliz@gnu.org> writes:
>> From: Wilhelm Kirschbaum <wkirschbaum@gmail.com>
>> Date: Sat, 29 Jul 2023 23:38:07 +0200
>>
>> This is a very naive solution to the above, but I am probably
>> missing some knowledge here and will break for anyone setting
>> the
>> var to something custom.
>
> Feel free to make this change locally, but I don't see how this
> can be
> general enough for us to install it as the default value.
>
The problem is that even with a local change, the match group 2 is
hard
coded.
> For starters, 'env' can be invoked with several options, not
> just with
> one. Also, some 'env' options accept arguments, and how do we
> know if
> the word that follows "env -OPTION" is the command to check
> against
> interpreter-mode-alist or an argument of an option?
>
Understand, it is a bit complex perhaps.
> IOW, I don't think this is a problem for a regexp-based
> solution. If
> we want to support such complex shebang lines (btw, does the
> Posix or
> GNU/Linux shell support them?), we should analyze the text after
> "env"
> to find the candidate interpreter. Not sure whether even that
> will
> provide a robust solution.
>
I can perhaps have a look if there is something concrete about how
this
can be interpreted.
> Btw, can't you satisfy your needs via file-local variables?
Not without convincing the project maintainers to add Emacs
specific
lines to the code, which I don't really think is appropriate in
some
cases.
It is not a common occurrence to run into this issue, but thought
is
strange to not work as expected. If I am the only one, then happy
to
close this and just keep a local patch.
next prev parent reply other threads:[~2023-07-30 9:38 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-29 20:08 bug#64939: 30.0.50; The default auto-mode-interpreter-regexp does not match env with flags Wilhelm Kirschbaum
2023-07-29 21:38 ` Wilhelm Kirschbaum
2023-07-30 5:04 ` Eli Zaretskii
2023-07-30 9:38 ` Wilhelm Kirschbaum [this message]
2023-07-30 10:04 ` Eli Zaretskii
2023-07-31 7:11 ` Wilhelm Kirschbaum
2023-07-31 17:38 ` Juri Linkov
2023-08-01 6:20 ` Wilhelm Kirschbaum
2023-07-30 4:53 ` Eli Zaretskii
2023-07-30 8:28 ` Wilhelm Kirschbaum
2023-07-30 10:03 ` Eli Zaretskii
2023-07-30 10:27 ` Wilhelm Kirschbaum
2024-01-31 19:52 ` bug#64939: Malcolm Cook
2024-02-01 18:52 ` bug#64939: Malcolm Cook
2024-02-10 8:27 ` bug#64939: Eli Zaretskii
2024-02-10 10:23 ` bug#64939: 30.0.50; The default auto-mode-interpreter-regexp does not match env with flags Kévin Le Gouguec
2024-02-10 17:08 ` Kévin Le Gouguec
2024-02-10 17:23 ` Malcolm Cook
2024-02-17 8:33 ` Eli Zaretskii
2024-02-28 17:57 ` Wilhelm Kirschbaum
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