> because whoever wrote it wasn't thinking about scope,
FWIW you can localize a FH inside the function's scope, but this implies some glob syntax IIRC.
I think local *FH but ...
- I'd need to look it up
- it'll localize all other vars with the same symbol, like $FH too
- it's a dynamic runtime scope not a lexical, ie don't call another sub from inside which doesn't localize the same symbol before using it
Not that beginner friendly
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