It doesn't matter whether the it's bottom tested or not. For example, you can break out of bottom tested loops in Visual Basic.
Also, consider
local $\="\n";
print('a');
{
print('b');
last;
print('c');
}
print('d');
a
b
d
versus
local $\="\n";
print('a');
do {
print('b');
last;
print('c');
};
print('d');
a
b
Can't "last" outside a loop block at a.pl line 5.
See bellaire's post for the real reason.
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