Gurus,
The Camel ( 3rd Ed. ), says, on page 385-386
sub TIEHANDLE {
....
open my $self, $from, @_ or croak "can't open $from@_:$!";
....
}
and then,
" ... the my $self furnishes undefined scalar to open, which knows to
autovivify it into a typeglob. .... " and further mentions autovivifying a
scalar ($$$self), an array (@$$self) etc.
I have read and reread the above and related typeglob material many times
but somehow I don't understand what is going on here. If $self is a
reference then, the above should read $$self, @$self etc. What is the
extra $ doing in there? Any help in taking apart the above expressions?
Also, could somebody give any online pointers (: references :), that
describe Typeglobs, in more detail?
--------- Thanks in advance,
Atul
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