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package FileHandle;
use 5.006;
use strict;
our($VERSION, @ISA, @EXPORT, @EXPORT_OK);
$VERSION = "2.02";
require IO::File;
@ISA = qw(IO::File);
@EXPORT = qw(_IOFBF _IOLBF _IONBF);
@EXPORT_OK = qw(
pipe
autoflush
output_field_separator
output_record_separator
input_record_separator
input_line_number
format_page_number
format_lines_per_page
format_lines_left
format_name
format_top_name
format_line_break_characters
format_formfeed
print
printf
getline
getlines
);
#
# Everything we're willing to export, we must first import.
#
import IO::Handle grep { !defined(&$_) } @EXPORT, @EXPORT_OK;
#
# Some people call "FileHandle::function", so all the functions
# that were in the old FileHandle class must be imported, too.
#
{
no strict 'refs';
my %import = (
'IO::Handle' =>
[qw(DESTROY new_from_fd fdopen close fileno getc ungetc gets
eof flush error clearerr setbuf setvbuf _open_mode_string)],
'IO::Seekable' =>
[qw(seek tell getpos setpos)],
'IO::File' =>
[qw(new new_tmpfile open)]
);
for my $pkg (keys %import) {
for my $func (@{$import{$pkg}}) {
my $c = *{"${pkg}::$func"}{CODE}
or die "${pkg}::$func missing";
*$func = $c;
}
}
}
#
# Specialized importer for Fcntl magic.
#
sub import {
my $pkg = shift;
my $callpkg = caller;
require Exporter;
Exporter::export($pkg, $callpkg, @_);
#
# If the Fcntl extension is available,
# export its constants.
#
eval {
require Fcntl;
Exporter::export('Fcntl', $callpkg);
};
}
################################################
# This is the only exported function we define;
# the rest come from other classes.
#
sub pipe {
my $r = new IO::Handle;
my $w = new IO::Handle;
CORE::pipe($r, $w) or return undef;
($r, $w);
}
# Rebless standard file handles
bless *STDIN{IO}, "FileHandle" if ref *STDIN{IO} eq "IO::Handle";
bless *STDOUT{IO}, "FileHandle" if ref *STDOUT{IO} eq "IO::Handle";
bless *STDERR{IO}, "FileHandle" if ref *STDERR{IO} eq "IO::Handle";
1;
__END__