1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
package IO::All::Pipe;
use strict;
use warnings;
use IO::All -base;
use IO::File;
const type => 'pipe';
sub pipe {
my $self = shift;
bless $self, __PACKAGE__;
$self->name(shift) if @_;
return $self->_init;
}
sub assert_open {
my $self = shift;
return if $self->is_open;
$self->mode(shift) unless $self->mode;
$self->open;
}
sub open {
my $self = shift;
$self->is_open(1);
require IO::Handle;
$self->io_handle(IO::Handle->new)
unless defined $self->io_handle;
my $command = $self->name;
$command =~ s/(^\||\|$)//;
my $mode = shift || $self->mode || '<';
my $pipe_mode =
$mode eq '>' ? '|-' :
$mode eq '<' ? '-|' :
$self->throw("Invalid usage mode '$mode' for pipe");
CORE::open($self->io_handle, $pipe_mode, $command);
$self->set_binmode;
}
my %mode_msg = (
'>' => 'output',
'<' => 'input',
'>>' => 'append',
);
sub open_msg {
my $self = shift;
my $name = defined $self->name
? " '" . $self->name . "'"
: '';
my $direction = defined $mode_msg{$self->mode}
? ' for ' . $mode_msg{$self->mode}
: '';
return qq{Can't open pipe$name$direction:\n$!};
}
=head1 NAME
IO::All::Pipe - Pipe Support for IO::All
=head1 SYNOPSIS
See L<IO::All>.
=head1 DESCRIPTION
=head1 AUTHOR
Ingy döt Net <ingy@cpan.org>
=head1 COPYRIGHT
Copyright (c) 2006. Ingy döt Net. All rights reserved.
Copyright (c) 2004. Brian Ingerson. All rights reserved.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
See http://www.perl.com/perl/misc/Artistic.html
=cut
1;
|
