Re: what's wrong with this loop syntax?

["Michael Newberry" <mnewberry@...>]

It would be nice if one or more assignments could be evalulated but ignored 
left to right, so long as there is a value to test before "do":

   while <assignment>, str ~= nil do
       --[code]
   end

or just evaluate str rather than str ~= nil.

Michael

----- Original Message ----- 
From: "Antony Sidwell" <antony@isparp.co.uk>
To: "Lua list" <lua@bazar2.conectiva.com.br>
Sent: Monday, January 08, 2007 2:37 PM
Subject: Re: what's wrong with this loop syntax?


> Michael Newberry wrote:
> > Luiz, OK, thanks. Is there any way to make it more compact (and more 
> > readable to me, at least), where the loop is tested at the top of the 
> > loop? Here is what I use:
> >
> >    while true do
> >        str = S:Next()
> >        if str == nil then break end
> >        -- [code]
> >    end
>
> I think I generally use something like:
>
> str = S:Next()
> while str do
>   -- [code]
>   str = S:Next()
> end
>
> which is no more compact, but I prefer it anyway, especially for a simple 
> "next" assignment like that.
> --
> Antony Sidwell