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NAME
    Class::Iterator - Iterator class

SYNOPSIS
      use Class::Iterator;
      my $it = Class::Iterator->new(\&closure_generator);

      while (my $v = $it->next) { print "value : $v\n" }
  
      # use map like
      my $it2 = imap { ...some code with $_...} $it
      while (my $v = $it->next) { print "value : $v\n" }

      # use grep like
      my $it3 = imap { ...some code with $_...} $it
      while (my $v = $it->next) { print "value : $v\n" }

DESCRIPTION
    Class::Iterator is a generic iterator object class. It use a closure an
    wrap into an object interface.

    new(\&closure_generator)
        This is the constructor. The argument is a sub which look like sub
        closure_generator { my $private_data; return sub { # do something
        with $private_data # and return it return $private_data } }

    next
        calling this method make one iteration.

    $o = imap { ... } $it
        This a creator. It create a new iterator from an existant iterator
        in the manner of map.

    $o = igrep { ... } $it
        This a creator. It create a new iterator from an existant iterator
        in the manner of grep.

CREDITS
    Marc Jason Dominius's YAPC::EU 2003 classes.

AUTHOR
    Robert Silve <robert@silve.net>