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Re: Splitting variable into two numbers
From: |
ikhxcsz7y xmbott |
Subject: |
Re: Splitting variable into two numbers |
Date: |
Wed, 21 Jul 2021 14:32:58 +0200 |
_=\{51,25\} p=${_#?} q=${p#*,} p=${p%,*} q=${q%?}
printf 'p=%s q=%s\n' "$p" "$q"
On Tue, Jul 20, 2021 at 8:21 PM <lisa-asket@perso.be> wrote:
> The multi-input is always enclosed within braces with no whitespaces.
>
>
>
> Thus "{5,8}", "{13,21}"
>
>
>
> In general input is "{p,q}" with no whitespaces
>
>
>
> Nothing more than that.
>
>
>
> Then p=5; q=8 and p=13; q=21
>
>
>
> From: Greg Wooledge <greg@wooledge.org>
> To: help-bash@gnu.org
> Subject: Re: Splitting variable into two numbers
> Date: 20/07/2021 19:05:01 Europe/Paris
>
> On Tue, Jul 20, 2021 at 06:15:32PM +0200, lisa-asket@perso.be wrote:
> > I would like to split a variable containing two numbers delimited by a
> comma
> >
> > and transfer the two numbers into two variables p and q.
>
> p=${input%,*} q=${input#*,}
>
> > Input:
> >
> > var="{5,8}"
>
> STOP!
>
> All of a sudden, this is an X-Y problem. You don't have "two numbers
> delimited by a comma". You have something else entirely. There are
> curly braces now. I wonder what else is in there.
>
> Is it really JSON?
>
> What's the *actual* goal here? Where does this input come from, what
> does it *really* look like (before any mangling you've already done
> on the X-Y path), and what are you trying to do with it?
>
>
>
- Splitting variable into two numbers, lisa-asket, 2021/07/20
- Re: Splitting variable into two numbers, Leonid Isaev (ifax), 2021/07/20
- Re: Splitting variable into two numbers, Greg Wooledge, 2021/07/20
- Splitting variable into two numbers, lisa-asket, 2021/07/20
- Re: Splitting variable into two numbers, Greg Wooledge, 2021/07/20
- Splitting variable into two numbers, lisa-asket, 2021/07/20
- Re: Splitting variable into two numbers, Greg Wooledge, 2021/07/20
- Splitting variable into two numbers, lisa-asket, 2021/07/20
- Re: Splitting variable into two numbers, Greg Wooledge, 2021/07/20
- Re: Splitting variable into two numbers,
ikhxcsz7y xmbott <=
- Re: Splitting variable into two numbers, Chris F.A. Johnson, 2021/07/20