Commit | Line | Data |
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920dae64 AT |
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."; |