if(;){} opinion

[Georg Wrede]

David Medlock wrote:
> Georg Wrede wrote:
> 
>> Better 'fess up front: the intent of this post is to once and for all 
>> murder, pulverize and extradite the new if construct.
>>
>> Consider:
>>
>>         if (m; std.regexp.search("abcdef", "b(c)d"))
>>         {
>>             writefln("[%s]", m.pre);      // prints [a]
>>             writefln("[%s]", m.post);     // prints [ef]
>>             writefln("[%s]", m.match(0)); // prints [bcd]
>>             writefln("[%s]", m.match(1)); // prints [c]
>>             writefln("[%s]", m.match(2)); // prints []
>>         }
>>
>> Flauting this around has shown that experienced programmers have a 
>> hard time figuring out what is going on here.
>>

> 
> I would say extend the with(...) construct to silently fail( and take an 
> else clause ) if the object of the with statement is null.

if (m; std.regexp.search("abcdef", "b(c)d"))
{
    writefln("Yippee!");
}
else
{
    writefln("Bad-ee.");
}

works already.

(Replace "abcdef" with "abXdef" to see.)