I've never really liked Perl's general appearance except for its alternate if and unless constructs.

These have the structure:

<statement> if <condition>;

<statement> unless <condition>;

e.g.

print "INFO: this is a message\n" if $verbose && $debug_level >= DBG_INFO;

process_input() unless length $input == 0;

The alternate if construct is equivalent to the D:

if (<condition>)
{
<statement>;
}

The alternate unless construct is equivalent to the D:

if (! <condition>)
{
<statement>;
}

I really like the unless because it reads so well.

"do this unless this is true"

I would think this bit of syntactic sugar wouldn't be too hard to add to D since it's just a simple transformation.

I apologize if this has been requested and debated already.

Brian

<snip>
><statement> if <condition>;
><statement> unless <condition>;
</snip>

Always makes me think of a bomb squad technician in a comedy:

"Now cut the blue wire... <pause> but before you do that..."

Juan C wrote:
> <snip>
> 
>><statement> if <condition>;
>><statement> unless <condition>;
> 
> </snip>
> 
> Always makes me think of a bomb squad technician in a comedy:
> 
> "Now cut the blue wire... <pause> but before you do that..."
> 
> 

I have to say that this is one of the ugliest constructs I've ever faced.  :)

--Steve

[glad to say that my perl hacking days are mostly behind me..]

"Brian Hammond" <d at brianhammond dot comBrian_member@pathlink.com> wrote in message news:c8lmu2$vdm$1@digitaldaemon.com...
> I really like the unless because it reads so well.
>
> "do this unless this is true"

That just seems backwards to me <g>. I like things to execute forwards, not backwards.

>> I really like the unless because it reads so well.
>>
>> "do this unless this is true"
>
>That just seems backwards to me <g>. I like things to execute forwards, not backwards.

Well she's your baby so that's that :-)
Brian

"Brian Hammond" <d at brianhammond dot comBrian_member@pathlink.com> wrote in message news:c8mh1p$264r$1@digitaldaemon.com...
> >> I really like the unless because it reads so well.
> >>
> >> "do this unless this is true"
> >
> >That just seems backwards to me <g>. I like things to execute forwards,
not
> >backwards.
>
> Well she's your baby so that's that :-)

Thank god for that. It seems a bit strange to me as well.
I dont like using a  do / while either.

Phill