Why this script can work?

[Gabriel Genellina]

"Jm lists" <practicalperl at gmail.com> escribió en el mensaje 
news:fbe35f750701190254i79ecddf6id4dd9a7e726d1f5b at mail.gmail.com...

> I'm not habitual for this usage of 'else',other languages seem don't
> support this syntax.
> i.g,writting the codes below by Perl would get an error:
>
> [[[censored example]]]

If all languages had the same features, what would be the point of having 
different languages at all?

-- 
Gabriel Genellina