Re: validation function

[Antero Vipunen <antero@...>]

Salve!

   I should escape magic characters (as you always do when using 
regular expressions). So the corrected version will look like:

----------------------------------------------------------
-- detects .,\"
local find = string.find
function WeirdChars(s)
 if find(s, '[%.,\\"]') then return "weird chars" end
 return nil
end
----------------------------------------------------------
NB! lua uses `%' as escape character.

AMDG,
 Antero Vipunen.

Nilay Tripathi wrote:

> function WeiredChars(s)
> local x=1
> if string.find(s,".")~='nil' then
>   x=0
> end
> if string.find(s,",")~='nil' then
>   x=0
> end
> if string.find(s,"\\")~='nil' then
>   x=0
> end
> if string.find(s,[["]])~='nil' then
>   x=0
> end
> if x==0 then
>   return "weired chars"
> end
> return nil
> end