IO::Handle::Iterator(3User Contributed Perl DocumentatiIO::Handle::Iterator(3)NAMEIO::Handle::Iterator - Iterator based read handle
SYNOPSIS
IO::Handle::Iterator->new(sub {
return $next_line; # or undef on eof
});
DESCRIPTION
This class lets you define a read handle with a few fallback methods
(like "read") using a single callback that behaves like "getline".
This is similar but much simpler than:
IO::Handle::Prototype::Fallback->new(
__read => sub { ... },
);
The reason being that the IO::Handle::Prototype::Fallback
implementation will try its very best to behave correctly (i.e. respect
the value of $/), whereas this implementation assumes it's fine to
return things that aren't exactly lines from "getline", so the values
are just passed through.
READ BUFFERING
When a method that requires buffering is invoked the handle is
reblessed to a subclass which handles buffering.
Calling "getline" again on this object will return the value of the
buffer and return to the normal iterator class.
perl v5.14.1 2009-09-29 IO::Handle::Iterator(3)
