On 2005-09-20 14:23, "Yuval Kogman" <[EMAIL PROTECTED]> wrote:

> On Tue, Sep 20, 2005 at 18:19:42 +0000, [EMAIL PROTECTED] wrote:
>> 2: if the middle part does something that changes the value of  the
>> expression $condition then the new construct again has a different meaning.
> Err, that's the point

Not necessarily.  Consider this common idiom (in pseudo-perl5):

foreach my $item (@menu)
    print "<li>\n";

    if ($item is not the current page)
        print qq|<a href="${\($item->url)}">;

    print $item->label;

    if ($item is not the current page)
        print "</a>";

    print "</li>\n";

The middle unconditional part doesn't change anything; it's just that -
unconditional.  We want to do it every time regardless, but it's bracketed
by bits that always go together - we want to do either both or neither, but
never just one.

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