I don't understand your point. AFAIK, $_ is just a variable that happens to have a certain well-known value when used inside a loop like this. Of course, using an explicitly named variable will always aid readability (if it is well named) but there is a balance between brevity and "names that mean something".

So please clarify - what does "topicalizer" mean, and why does it make what I wrote wriong?

(But thanks for at least making a comment after downvoting ... ;-)

In reply to Re^2: handling multiple file handles for code generation by danmcb
in thread handling multiple file handles for code generation by danmcb

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