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1 package Language::INTERCAL::GenericIO::OBJECT;
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2
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3 # Write/read data from/to Perl object
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4
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5 # This file is part of CLC-INTERCAL
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6
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7 # Copyright (c) 2006-2008 Claudio Calvelli, all rights reserved.
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8
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9 # CLC-INTERCAL is copyrighted software. However, permission to use, modify,
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10 # and distribute it is granted provided that the conditions set out in the
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11 # licence agreement are met. See files README and COPYING in the distribution.
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12
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13 use strict;
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14 use vars qw($VERSION $PERVERSION);
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15 ($VERSION) = ($PERVERSION = "CLC-INTERCAL/Base INTERCAL/GenericIO/OBJECT.pm 1.-94.-2") =~ /\s(\S+)$/;
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16
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17 use Carp;
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18 use Language::INTERCAL::Exporter '1.-94.-2';
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19 use Language::INTERCAL::Splats '1.-94.-2', qw(:SP);
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20 use Language::INTERCAL::GenericIO '1.-94.-2';
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21 use vars qw(@ISA);
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22 @ISA = qw(Language::INTERCAL::GenericIO);
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23
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24 sub _new {
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25 @_ == 3 or croak
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26 "Usage: new Language::INTERCAL::GenericIO::OBJECT(MODE, OBJECT)";
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27 my ($object, $mode, $data) = @_;
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28 ref $data or croak "DATA must be a reference";
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29 UNIVERSAL::isa($data, 'UNIVERSAL')
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30 or croak "DATA must be an object";
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31 $object->{filedata} = $data;
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32 }
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33
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34 sub is_terminal { 0 }
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35
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36 sub read_binary {
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37 @_ == 2 or croak "Usage: IO->read_binary(DATA)";
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38 my ($object, $string) = @_;
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39 $object->{filedata}->read($string);
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40 }
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41
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42 sub _write_code {
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43 my ($object, $size) = @_;
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44 $object->{filedata}->write($size);
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45 }
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46
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47 sub _write_text_code {
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48 my ($object, $newline) = @_;
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49 my $data = $object->{filedata};
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50 my $line = $object->{filedata}->write(1);
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51 defined $line && $line ne '' or return '';
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52 my $index = index($line, $newline);
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53 while ($index < 0) {
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54 my $add = $object->{filedata}->write(1);
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55 defined $add && $add ne '' or return '';
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56 $line .= $add;
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57 $index = index($line, $newline);
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58 }
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59 $line;
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60 }
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61
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62 sub describe {
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63 @_ == 1 or croak "Usage: IO->describe";
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64 return 'OBJECT';
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65 }
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66
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67 1;
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