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Re^3: Is it a list or a flip-flop?

by Transient (Hermit)
on Aug 18, 2005 at 19:21 UTC ( #484943=note: print w/replies, xml ) Need Help??

in reply to Re^2: Is it a list or a flip-flop?
in thread Is it a list or a flip-flop?

From perlop:


The range operator has always stumped me a bit, so I can't say much more than what it says above

Update: I suppose it is working like this (in the case of setting $. to 1) - please correct me if I am wrong:

Since 1 is a constant, and so is $., it is evaluated as TRUE.
Since the LHS is true, the RHS is evaluated immediately.
Since the RHS is NOT a constant, it is not compared to $., but is returned as true because it is not false (i.e. 9 is not 0, "" or undef).
The range operation is completed.
Because it is a single iteration only, the sequence number is 1, and is appended with "E0"

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