Re: Lua as Configuration Conditional Statement inside table definition

[steve donovan <steve.j.donovan@...>]

On Wed, Nov 10, 2010 at 9:45 AM, Gopalakrishnan Subramani
<gopalakrishnan.subramani@gmail.com> wrote:
> Enum1 = ENUMERATION {
>     {1, "Forward"},
>    {2, "Backword"},
>
>    if BIDIERCTIONAL_SUPPORTED then
>       {3, "BiDirectional"},
>
>   {4, "None" }
> }
>
> If you see, the "Bidirectioanl" is added only if it is enabled. I don't
> think, Lua support statements within the table definition.

That is true, so you can't do it this way. But you could state it like
this by making your enumerations objects:

Enum1 = ENUMERATION()
Enum1:add {1,"Forward"}
Enum1:add{2,"Backward"}
if BIDIERCTIONAL_SUPPORTED then Enum1:add{3,"BiDirectional"} end
Enum1:add {4,"None"}

Which is not so pretty. So how about this?

Enum1 = ENUMERATION {
   {1, "Forward",true},
   {2, "Backword",true},
   {3, "BiDirectional",BIDIERCTIONAL_SUPPORTED},
   {4, "None",true}
}

And loop through the enumeration afterwards and remove fields where
the conditional entry is false/nil  - this can be done by the
ENUMERATION function directly.

steve d.