modern Tcl and correct quoting

[Poor Yorick]

On Wed, Jun 12, 2013 at 10:58:12PM +0200, Clemens Lang wrote:
> Hi,
> 
> On Wed, Jun 12, 2013 at 04:33:56PM -0400, Lawrence Velázquez wrote:
> > Note that changing something like
> >     if {$whatever == "yes"} { foo } else { bar }
> > into
> >     if {$whatever} { foo } else { bar }
> > subtly changes the semantics of the conditional. This transformation
> > is only valid if $whatever is certain to be a valid Tcl boolean.
> 
> I think we do have [tbool whatever] for that, we're just not using it
> everywhere we could.
> 

Tcl will also complain loudly if the value is not a boolean, so if there is a
problem anywhere, it should be straightforward to diagnose.

-- 
Yorick