if (condition) { } elsif (condition) { } else { }
unless (condition) { } else { }
label: while (condition) { } continue { }
label: until (condition) { } continue { }
label: for (intialization; expression; continue) { }
label: foreach variable (list) { }
label: { } continue { }
do { } while condition;
do { } until condition;
do { }
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