There's a thread on p5p that has to do with Precedence
. Just like in C, the order of evaluation is not strictly determined.
The original thread starts here, where our own japhy says "It hurts when I stick a fork in my eye!"
Seriously, it's a combination of recursion and modifying a global (@_). If you copy the arguments into a lexical array in li(), you'll get better results.
Update: chromatic resolves to be more specific about his terminology.
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