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Re: IFS field splitting doesn't conform with POSIX

From: Andreas Schwab
Subject: Re: IFS field splitting doesn't conform with POSIX
Date: Thu, 30 Mar 2023 21:48:57 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux)

On Mär 30 2023, Felipe Contreras wrote:

> On Thu, Mar 30, 2023 at 10:10 AM Oğuz İsmail Uysal
> <oguzismailuysal@gmail.com> wrote:
>> On 3/30/23 2:12 PM, Felipe Contreras wrote:
>> >      IFS=,
>> >      str='foo,bar,,roo,'
>> >      printf '"%s"\n' $str
>> zsh is the only shell that generates an empty last field, no other shell
>> exhibits this behavior.
> So? This is argumentum ad populum. The fact that most shells do X
> doesn't imply that POSIX says X.
> It could very well mean that all shells are implementing POSIX wrong.
> Except zsh.

Note that zsh by default is not a POSIX shell, and even in sh
compatibilty mode it doesn't strive to be POSIX compliant.

Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."

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