Thanks, I think only something that does local %pkg:: is going to work. Putting everything else back in the local %pkg:: is the next step. Something like this (not yet tested): 
my $opkg = \%pkg::;
local %pkg::;
$_ ne "foo" and *{"pkg::$_"}=$opkg->{$_} for keys %$opkg;

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I can't decide if this is so hard because globs are such strange scalars or because symbol tables are such perfectly ordinary hashes.

(About the compile-time lookup of globs, I remember once seeing a quote from Larry complaining about an optimization that made globals faster but not lexicals. Making every global reference look up the glob afresh sure would be a hearty encouragement to always use lexicals. :)

In reply to Re: Re: creating a new symbol table glob by ysth
in thread creating a new symbol table glob by ysth

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