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Honglei Tu <> wrote:

>Another one:
>If I have a Lua table which is
>color["red" = 1 "green" =5 "blue" =6].
>I wonder how to get the field names and put them
>in a set. I want to get ["red" "green" "blue"].
>I will write a Lua function to get them.
>But is there any way to do that ?

There are no sets in Lua, is the following what you want?

    for k,v in color do tinsert(s,k) end