> I think that syntax would be the biggest penalty since it would confuse the users.

hence you need to switch to while and add an iterator method ->each to your API °

    while ( my ($widget) = $api->each( $item->{sets}{widgets} ) )  { .
+.. }

[download]

the iterator will be exhausted as soon as ->each returns an empty list.

Cheers Rolf
(addicted to the 𐍀𐌴𐍂𐌻 Programming Language :)
Wikisyntax for the Monastery

°) like others already suggested

In reply to Re^5: Using lazy list with a for loop by LanX
in thread Using lazy list with a for loop by Anonymous Monk

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