Reduce need of backslash

[Nicolas Fleury]

Stephen Horne wrote:
> Basically, when I need to break an expression over multiple lines, the
> odds are that it already has parentheses anyway. And I wouldn't indent
> that way anyway, I'd do it as...
> 
> a = (  firstitem
>      + seconditem
>      + (  thirditem
>         * fourthitem
>        )
>     )

But that's indentation anyway.  If the rule would be "all lines with a 
superior indentation are part of the previous line", would that work? 
This way it would not be necessary to add the parenthesis.  I wonder if 
I'm missing something...

Regards,

Nicolas