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Hello Enrico,

Wednesday, June 24, 2009, 11:24:02 PM, you wrote:

> If you are not comfortable with it, just think of arrays and hash tables
> as two different structures and use *either* one or the other. Don't 
> make holes in arrays (use 'false' or a special marker if you need) and
> they won't make holes in your code :-)

as i said, there are functions (like string.match) that returns nil as
a false value

Best regards,