I did a few more tests.
x = {}
x["y"] = 3
print(x.y) -- 3
x["f1"] = 4
print(x.f1) -- 4
x["3"] = 4
--print(x.3) -- invalid
print(x[3]) -- nil
print(x["3"]) -- 4
Quite expected. Then more tests:
box = {}
key = "xxx"
box.yyy = {numcol=3}
box[key] = {numcol=2}
function box.yyy:click_cb(L,C)
end
print(box.yyy.numcol) -- 3
print(box.xxx.numcol) -- 2
print(box["xxx"]) -- table: 0000005B439B0F60
print(box["xxx"].numcol) -- 2
print(box[key]) -- table: 0000005B439B0F60
print(box[key].numcol) -- 2
function box.xxx.click_cb() -- OK
--function box[key].click_cb() -- Error
end
And finally doing this:
box[key].click_cb = function () -- OK
end
Best,
Scuri
On Thu, Jul 9, 2015 at 10:46 PM, Antonio Scuri <sc...@tecgraf.puc-rio.br>
wrote:
> Interesting.
>
> This also does not work:
>
> function box[key].click_cb(self, L,C)
>
> And it is not related to IupLua. I tested with:
>
> box[key]= {numcol=2, numcol_visible=2, numlin=0}
>
> An the result is the same.
>
> It seems it is not a valid Lua declaration. You should post at the Lua
> list to get a better answer... :)
>
> On the other hand, this is valid:
>
> box[key].click_cb = function(self, L,C)
>
> According to the Lua documentation:
>
> The statement
>
> function t.a.b.c.f () *body* end
>
> translates to
>
> t.a.b.c.f = function () *body* end
>
>
> So for me it was the same as above. But then, I guess it is not. It does
> not work in any Lua 5.x.
>
> Interesting again.
>
> Anyway, Milind already answer it. Thanks!
>
> Best,
> Scuri
>
>
> On Thu, Jul 9, 2015 at 9:45 PM, John Huttley <j...@mib-infotech.co.nz>
> wrote:
>
>> Hi,
>> I've been doing a bit of programming with IUP LUA under windows.
>>
>> And have discovered this oddness.
>> ===========
>> require( "iuplua" )
>> require( "iupluacontrols" )
>>
>> box = {}
>> key = "999"
>>
>> box[key]= iup.matrix {numcol=2, numcol_visible=2, numlin=0}
>>
>>
>> local box_key = box[key] -- This works
>> function box_key:click_cb(L,C)
>> end
>>
>>
>> -- The function def below doesn't like the [key], doesn't compile
>> function box[key]:click_cb(L,C)
>> end
>>
>>
>> ========
>>
>> I'm at a loss to understand why the latter function doesn't compile.
>>
>> Any advice greatfully received.
>>
>> --John
>>
>>
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