Re: brace expansion not happening

["Benjamin R. Haskell" <zsh@xxxxxxxxxx>]

On Thu, 8 Jan 2009, Frank Terbeck wrote:

> Carlos Carvalho <carlos@xxxxxxxxxxxxxx>:
>
> > I need to do an expansion in more than one place, so I'd like to put
> > the pattern in a variable. However it's not equivalent:
> [...]
> > Putting in a variable:
> >
> > % list=a/{b,c}-d
> > %  for i in $list; do echo $i; done
> > a/{b,c}-d
>
> Use an array:
> % list=(a/{b,c}-d)
>
> The rest just work, just as you wrote it.

This seems fine for the original question. But, how about the case of user 
input?

e.g.

$ read R

## user enters: a/{b,c}-d

Is there then no way to do brace expansion on R?

Best,
Ben