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> On Thu, Dec 17, 2009 at 11:29 AM, Luiz Henrique de Figueiredo
> <lhf@tecgraf.puc-rio.br> wrote:
> > Other application do need to recognize expressions but in this case you
> > you only need to issue "__iter_handler(" after "in" and ")" before "do".
> 
> unless that expression includes a function definition, with included
> 'for ...in..do'

Right... So, yes you do need to count block nesting levels.