Re: help with lua style and syntax

[Joshua Phillips <jp.sittingduck@...>]

On Thu, Oct 18, 2012 at 01:18:00PM +0100, David Collier wrote:
> in C I can write:
> 
>   if ( passed = myFunction( x , y , &z ) )
>        && ( passed = mySecondFunction( z, &q ) )
>   
> which is preferable to
> 
>   passed = function(x, y, &z)
>   if ( passed )
>   {
>       passed = mySecondFunction( z, &q ) )

No it isn't.

> Now Lua allows me to return more than one value, so I can write
> 
>   passed, z = myFunction(x, y)
>   
> but is there any way in Lua I can write
> 
>   if passed, z = myFunction(x, y)
>   
> and set both passed and z, but then test 'passed' ??

No, thankfully.

> It would allow me to do:
> 
>   if     ( passed, z = myFunction(x, y) )
>      and ( passed, q = mySecondFunction(z) )
>      and ( passed, result = myThirdFunction(q) )
> 
> which is a lot more comapct than what I'm writing at present.

Compact, maybe. It's much better to make software easy to read, and that
doesn't necessarily mean making it compact.

See also: Perl golf.