Re: String to array

[Tapani Tarvainen]

On Thu, Sep 30, 2021 at 09:48:13AM -0400, Greg Wooledge (greg@wooledge.org) 
wrote:

> As I understand it, you're asking for "no explicit loops", and "no
> forked processes".

Yes (although I'd be interested in pretty solutions with forked
processes, too).

> Are implicit loops allowed?  I mean, they *must* be, right?  There's
> no way to do this without a loop being involved in *some* underlying
> layer, hidden away in the bowels of the shell.

Of course.

> unicorn:~$ n=${#string}; eval "printf -v re '(.)%.0s' {1..$n}"
> unicorn:~$ [[ $string =~ $re ]] && declare -p BASH_REMATCH

That is clever!

And beats my hack by having just one eval, too. :-)

-- 
Tapani Tarvainen