[Templates] praise for loop.first and loop.last

[Randal L. Schwartz]

I've found loop.first and loop.last to be very cool.  Thank you
Andy.

Sometimes you want this:

        "<Thing>";
        FOREACH subthing = thing;
                "<subthing>$subthing</subthing>";
        END;
        "</Thing>";

And sometimes you want this:

        FOREACH subthing = thing;
                "<Thing>" IF loop.first;
                "<subthing>$subthing</subthing>";
                "</Thing>" IF loop.last;
        END;

Why the latter?  If "thing" is empty, then you don't get the <Thing>
brackets at all!  Very cool.

Both are useful in your toolbox.

Maybe we need a "patterns in TT" wiki or something.  Heck, we need
a wiki in TT as well. :)

-- 
Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095
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