The new =~, and chaining statement modifiers

[Luke Palmer]

So, does the new =~ commute now, except for regexps; i.e.

$a =~ $b
is the same as
$b =~ $a

unless one or both are regexps?

Additionally, can you chain statement modifiers?

do_this() if $a unless $b;
print for @mylist if $debug;
        or less efficiently,
print if $debug for @mylist;
print "$x, $y" for @xlist -> $x for @ylist -> $y;

Or is this for syntax even valid?:   (question colon not meant as ternary ;)
print "$x" for @xlist -> $x;


If you can't, it might be something to consider.