Brother monks!

I'm stuck in a simple code snippet from HOP (4.3.3), can't quite understand why this spits out *all* lines from the file (<DATA>) and not just the first 2 lines.

Seems the first NEXTVAL($it) slurps the *whole* file instead of just reading one line up to \n, but why is that so?

Any pointers much appreciated!
#!/usr/bin/perl -w
use strict;
use warnings;

sub NEXTVAL { $_[0]->() }

sub Iterator (&) { return $_[0] }

sub filehandle_iterator {
  my $fh = shift;
  return Iterator { <$fh> };
}

my $it = filehandle_iterator(*DATA);
for (1..2) { print NEXTVAL($it); }

__END__
line 1
line 2
line 3
line 4
line 5

[download]
Best Regards,
Allan Dystrup

In reply to HOP file iterator by ady

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