Re^4: Lexical scoping like a foxby shmem (Canon)
|on Jan 13, 2008 at 19:07 UTC||Need Help??|
1)using input record separator as newline indicator is very interesting. Never seen it before but works well. Any reason? I am assuming it's just a style issue?
I guess it's more along "a \n is a \n is a \n" - $/ is a global, and that could be changed far away without you knowing it; so it's more safety than style.
2)Below code from tutorial does not work when I insert my next to variable.. can someone explain this?
You are allocating a lexical $x, not a package global (which would be either use vars '$x' or our $x), and local aliases only package globals. You can't (shouldn't) allocate globs and lexicals of the same name in the same scope:
3)can someone explain further on "lexical variables are declared at compile-time, not initialised? Is this because BEGIN runs during compile-time? I sneaked in a new my $foo = something inside of BEGIN block and execution of the code came out w/ foo is something during BEGIN phase
"lexical variables are declared at compile-time, not initialised" means "the container is created, but nothing is put into it". The initialization (= puting something into the bucket) happens at run time. BEGIN blocks are compiled and immediately run, that's why "code came out w/ foo is something during BEGIN phase".