| 1 | package Test::Harness::Iterator; |
| 2 | |
| 3 | use strict; |
| 4 | use vars qw($VERSION); |
| 5 | $VERSION = 0.02; |
| 6 | |
| 7 | =head1 NAME |
| 8 | |
| 9 | Test::Harness::Iterator - Internal Test::Harness Iterator |
| 10 | |
| 11 | =head1 SYNOPSIS |
| 12 | |
| 13 | use Test::Harness::Iterator; |
| 14 | my $it = Test::Harness::Iterator->new(\*TEST); |
| 15 | my $it = Test::Harness::Iterator->new(\@array); |
| 16 | |
| 17 | my $line = $it->next; |
| 18 | |
| 19 | =head1 DESCRIPTION |
| 20 | |
| 21 | B<FOR INTERNAL USE ONLY!> |
| 22 | |
| 23 | This is a simple iterator wrapper for arrays and filehandles. |
| 24 | |
| 25 | =head2 new() |
| 26 | |
| 27 | Create an iterator. |
| 28 | |
| 29 | =head2 next() |
| 30 | |
| 31 | Iterate through it, of course. |
| 32 | |
| 33 | =cut |
| 34 | |
| 35 | sub new { |
| 36 | my($proto, $thing) = @_; |
| 37 | |
| 38 | my $self = {}; |
| 39 | if( ref $thing eq 'GLOB' ) { |
| 40 | bless $self, 'Test::Harness::Iterator::FH'; |
| 41 | $self->{fh} = $thing; |
| 42 | } |
| 43 | elsif( ref $thing eq 'ARRAY' ) { |
| 44 | bless $self, 'Test::Harness::Iterator::ARRAY'; |
| 45 | $self->{idx} = 0; |
| 46 | $self->{array} = $thing; |
| 47 | } |
| 48 | else { |
| 49 | warn "Can't iterate with a ", ref $thing; |
| 50 | } |
| 51 | |
| 52 | return $self; |
| 53 | } |
| 54 | |
| 55 | package Test::Harness::Iterator::FH; |
| 56 | sub next { |
| 57 | my $fh = $_[0]->{fh}; |
| 58 | |
| 59 | # readline() doesn't work so good on 5.5.4. |
| 60 | return scalar <$fh>; |
| 61 | } |
| 62 | |
| 63 | |
| 64 | package Test::Harness::Iterator::ARRAY; |
| 65 | sub next { |
| 66 | my $self = shift; |
| 67 | return $self->{array}->[$self->{idx}++]; |
| 68 | } |
| 69 | |
| 70 | "Steve Peters, Master Of True Value Finding, was here."; |