Re: accessing multiple occurrences of the same field with lua

[Hadriel Kaplan <HKaplan () acmepacket com>]

On Mar 9, 2013, at 3:41 AM, Cristian Constantin <const.crist () googlemail com> wrote:
> cristian: if I need tag as a number I should use:
>
> tonumber (tostring (tag))
>
> right?

You can do it that way - but looking at the C-code it looks like you can also just do this:
    local myval = tag.value
or this:
    local myval = tag()

In both of those cases 'myval' will be a Lua number of the tag value as well, because a FieldInfo object for a 
"m3ua.parameter_length" field value is a FT_UINT16 type internally, so getting its value should get you a Lua number.  
Any FieldInfo of an internal type FT_FLOAT/DOUBLE/UINTx/INTx will give a Lua number when its value is retrieved. 
(except FT_UINT64/FT_INT64)  Or at least the code looks like it will do that, I haven't tried it myself.

-hadriel

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