[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: any plans for command substitution that preserves trailing newlines?
From: |
Christoph Anton Mitterer |
Subject: |
Re: any plans for command substitution that preserves trailing newlines? |
Date: |
Wed, 26 Jan 2022 00:31:45 +0100 |
User-agent: |
Evolution 3.42.2-1 |
On Wed, 2021-06-02 at 11:04 -0400, Chet Ramey wrote:
> I would save the locale's variable values, use LC_CTYPE instead of
> LC_ALL,
> put the assignment to LC_CTYPE as its own command (though that's not
> strictly necessary), and make sure to restore the locale afterward.
I'd understand it as follows:
LC_CTYPE is the actual setting which would control how the encoding is
interpreted, when I strip the sentinel value.
Thus in principle, setting LC_CTYPE should be enough.
However:...
> Since you can't be sure what locale variables, if any, exist in the
> current
> shell's execution environment, it's simpler to save and restore them
> all.
> If you want, you can just check whether or not LC_CTYPE (or LC_ALL,
> depending on your preference) is set and save the original value.
> You already know which variables you've set in the script.
... LC_ALL might be set already, and override my own setting of
LC_CTYPE.
Thus it's best to set LC_ALL, which overrides all.
But I don't understand why I should need to check any other of the LC_*
vars?
They shouldn't matter with stripping of the character and when I re-set
LC_ALL to it's original state (including unset, if it was unset),...
then all others should be back in state as they were before?
Thanks again,
Chris.
- Re: any plans for command substitution that preserves trailing newlines?, Christoph Anton Mitterer, 2022/01/25
- Re: any plans for command substitution that preserves trailing newlines?,
Christoph Anton Mitterer <=
- Re: any plans for command substitution that preserves trailing newlines?, Chet Ramey, 2022/01/26
- Re: any plans for command substitution that preserves trailing newlines?, Christoph Anton Mitterer, 2022/01/26
- Re: any plans for command substitution that preserves trailing newlines?, Alex fxmbsw7 Ratchev, 2022/01/26
- Re: any plans for command substitution that preserves trailing newlines?, Alex fxmbsw7 Ratchev, 2022/01/26
- Re: any plans for command substitution that preserves trailing newlines?, Chet Ramey, 2022/01/26
- Re: any plans for command substitution that preserves trailing newlines?, Christoph Anton Mitterer, 2022/01/26
- Re: any plans for command substitution that preserves trailing newlines?, Chet Ramey, 2022/01/26
- Re: any plans for command substitution that preserves trailing newlines?, Christoph Anton Mitterer, 2022/01/26
- Re: any plans for command substitution that preserves trailing newlines?, Chet Ramey, 2022/01/26
- Re: any plans for command substitution that preserves trailing newlines?, Christoph Anton Mitterer, 2022/01/26