Re^7: Access a global variable from a subroutine when used as "for" iterator

Your perception of my as global is also wrong !
Only special variables like $_, $a, $" are really global (they always belong to the main:: namespace).

It is clear that I don't know how to call a variable that could be accessed from everywhere within the script's (main?) scope. I'm not sure if "public" is a better name. There is no intention to share it with modules in order to use "our", at least at this stage of the development.

(maybe I should start writing a tutorial instead of preaching again and again ;)

That could be very useful for people like me, if that tutorial is well indexed by search engines (or the Super Search). :-D

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Re^8: Access a global variable from a subroutine when used as "for" iterator (updated) by LanX (Saint) on Dec 22, 2023 at 02:24 UTC
Perl has two different kinds of variables, private variables declared with `my` and package variables (usually) declared with `our` a lexical scope in Perl is anything from declaration till end of enclosing `{ block }` the biggest possible lexical scope outside a block is the file, aka file-scope `lexical` ( i.e. "as you read" the static code ) is opposed to "dynamic" (i.e. run-time effects) `main::` and other `package` s are namespaces not scopes, think of them as hashes of variables and functions `my` variables do not belong to namespaces, `our` vars do global means accessible everywhere, all namespaces including vars and subs are global as long as you use the `*fully::qualified::name` special variables always belong to `main::` for sources, e.g. "Scoping" see perlintro#Variable-scoping perlglossary#scope modern-perl Update And an excellent overview can be found in Coping with Scoping Cheers Rolf _{(addicted to the Perl Programming Language :) see Wikisyntax for the Monastery}	[reply] [d/l] [select]
Re^9: Access a global variable from a subroutine when used as "for" iterator by hippo (Archbishop) on Dec 22, 2023 at 08:45 UTC
Well that's confusing. Aren't these self-contradictory? main:: and other package s are namespaces not scopes ... variables do not belong to namespaces special variables always belong to main:: I can't reconcile these 3 statements, sorry. Post-update: reads much better now, thanks. 🦛	[reply]
Re^10: Access a global variable from a subroutine when used as "for" iterator by LanX (Saint) on Dec 22, 2023 at 10:14 UTC
Hi Thanks corrected, somehow the "my" got lost > > my variables do not belong to namespaces Cheers Rolf _{(addicted to the Perl Programming Language :) see Wikisyntax for the Monastery}	[reply]

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