Re: Why is nil not a valid table key?

[PA <petite.abeille@...>]

On Nov 26, 2005, at 10:10, Philippe Lhoste wrote:

> My solution (I didn't looked at your before doing it, to avoid to be 
> spoiled...):

Another one, just for the fun of it :))

function valuesIndices( someValues )
        local someIndices = LUList()

        for _, aValue in someValues:iterator() do

                someIndices:add( someValues:indexOf( aValue ) )

        end

        return someIndices
end

print( valuesIndices( LUList( { 0, 1, 4, 2, 4, 1, 0, 2 } ) ) )

> { 1, 2, 3, 4, 3, 2, 1, 4 }

print( valuesIndices( LUList( { "a", "b", "e", "c", "e", "b", "a", "c" 
} ) ) )

> { 1, 2, 3, 4, 3, 2, 1, 4 }


Cheers

--
PA, Onnay Equitursay
http://alt.textdrive.com/