Re: [Bashburn-info] Pressing any key in menu balks

[Nick W. <ni...@uk...>]

On Sat, 30 Aug 2008 17:57:41 +0100
Nick Warne <ni...@uk...> wrote:

> On Sat, 30 Aug 2008 17:48:17 +0100
> Nick Warne <ni...@uk...> wrote:
> 
> > > > if (( selection == 0 )) && [[ "$chselection" != 0 ]]
> > > > then
> > > >     echo 'Error: Input must be numeric'
> > > > elif (( selection >= 0 && selection < size )) 
> > > > then
> > > >     eval ${action[selection]}       # Do it baby.
> > > > else
> > > >     # Bitch if the input was out of bounds.
> > > >     echo 'Error: Input must be in range'
> > > >     nogood=1
> > > > fi
> > > 
> > > Very good.  Many ways to skin a cat in GNU/Linux world.
> > > 
> > > Works great.
> > > 
> > > Nick
> > 
> > Famous last words.  If you type a none digit/alpha character (i.e.
> > # ~ @ etc. ) oops.
> > 
> > The regex line I done just stripped anything that wasn't a digit.
> 
> Thinking, perhaps what I done _is_ the right thing i.e. sanitise the
> input before deliberating what needs to be done later in the code.
> 
> I guess it could be more elegant though...
> 
> Nick

OK, I think I found it.  I liked the warning about none-digit entered -
so sanitise the cloned $VAR!  Seems to work good now.

Nick
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Free Software Foundation Associate Member 5508