On Wed, 19 Jan 2000, Jonas Nordström wrote:
> I had the same problem. What does the "1" mean? That the sub returns with a
> true value?
yes, from ch9:
=item do()
This method provides a way to iterate through an entire table item by
item. Pass it a reference to a code subroutine to be called once for
each table entry. The subroutine should accept two arguments
corresponding to the key and value respectively, and should return a
true value. The routine can return a false value to terminate the
iteration prematurely.
This example dumps the contents of the I<headers_in> field to the
browser:
$r->headers_in->do(sub {
my($key, $value) = @_;
$r->print("$key => $value\n");
1;
});
For another example of I<do()>, see listing 7.12 from the previous
chapter, where we use it to transfer the incoming headers from
the incoming Apache request to an outgoing LWP I<HTTP::Request>
object.
---
which means, ch7's example is broken, or that $request->header returned a
true value when the example was written. I suppose the ch7 example should
explictly return 1 regardless.
