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File Content: QuotedPrint.pm

package PerlIO::via::QuotedPrint;

# Set the version info
# Make sure we do things by the book from now on

$VERSION = '0.06';
use strict;

# Make sure the encoding/decoding stuff is available

use MIME::QuotedPrint (); # no need to pollute this namespace

# Satisfy -require-

#-----------------------------------------------------------------------
#  IN: 1 class to bless with
#      2 mode string (ignored)
#      3 file handle of PerlIO layer below (ignored)
# OUT: 1 blessed object

sub PUSHED { bless \*PUSHED,$_[0] } #PUSHED

#-----------------------------------------------------------------------
#  IN: 1 instantiated object (ignored)
#      2 handle to read from
# OUT: 1 decoded string

sub FILL {

# Read the line from the handle
# Decode if there is something decode and return result or signal eof

my $line = readline( $_[1] );
    (defined $line) ? MIME::QuotedPrint::decode_qp( $line ) : undef;
} #FILL

#-----------------------------------------------------------------------
#  IN: 1 instantiated object (ignored)
#      2 buffer to be written
#      3 handle to write to
# OUT: 1 number of bytes written

sub WRITE {

# Encode whatever needs to be encoded and write to handle: indicate result

(print {$_[2]} MIME::QuotedPrint::encode_qp($_[1])) ? length($_[1]) : -1;
} #WRITE

__END__

=head1 NAME

PerlIO::via::QuotedPrint - PerlIO layer for quoted-printable strings

=head1 SYNOPSIS

use PerlIO::via::QuotedPrint;

open( my $in,'<:via(QuotedPrint)','file.qp' )
  or die "Can't open file.qp for reading: $!\n";
 
 open( my $out,'>:via(QuotedPrint)','file.qp' )
  or die "Can't open file.qp for writing: $!\n";

=head1 DESCRIPTION

This module implements a PerlIO layer that works on files encoded in the
quoted-printable format.  It will decode from quoted-printable while reading
from a handle, and it will encode as quoted-printable while writing to a handle.

=head1 REQUIRED MODULES

MIME::QuotedPrint (any)

=head1 SEE ALSO

L<PerlIO::via>, L<MIME::QuotedPrint>, L<PerlIO::via::Base64>,
L<PerlIO::via::MD5>, L<PerlIO::via::StripHTML>, L<PerlIO::via::Rotate>.

=head1 ACKNOWLEDGEMENTS

Based on example that was initially added to MIME::QuotedPrint.pm for the
5.8.0 distribution of Perl.

=head1 COPYRIGHT

=cut