Re: Embedded 'nil' values - a suggestion

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

On Mar 07, 2006, at 17:48, Gavin Kistner wrote:

> I've added this information to
> http://lua-users.org/wiki/MigratingToFiveOne
> under "Using vararg expressions rather than 'arg'"

In addition, you might want to consider using table.maxn() when 
unpacking multiple return values:

function test()
    return "a", nil, "b", nil
end

local someResults = { test() }

print( "#", #someResults, unpack( someResults ) )
print( "maxn", table.maxn( someResults ), unpack( someResults, 1, 
table.maxn( someResults ) ) )

> #       1       a
> maxn    3       a       nil     b

Not perfect as one doesn't seem to be able to catch the very last nil 
value, but good enough for all practical purposes :)

Cheers

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