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package Language::INTERCAL::Charset::Baudot;
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# Convert between Baudot and ASCII
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# This file is part of CLC-INTERCAL.
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# Copyright (C) 1999, 2000, 2002, 2006 Claudio Calvelli, all rights reserved
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# CLC-INTERCAL is copyrighted software. However, permission to use, modify,
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# and distribute it is granted provided that the conditions set out in the
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# licence agreement are met. See files README and COPYING in the distribution.
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use vars qw($PERVERSION);
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$PERVERSION = "CLC-INTERCAL INTERCAL/Charset/Baudot.pm 1.-94.-4";
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use Language::INTERCAL::Exporter '1.-94.-4';
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use vars qw(@EXPORT @EXPORT_OK);
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@EXPORT_OK = qw(ascii2baudot baudot2ascii);
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use Language::INTERCAL::Splats '1.-94.-4', qw(:SP);
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"\000E\nA SIU\rDRJNFCKTZWLHYPQOBG2MXV1",
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"\000e\na siu\rdrjnfcktzwlhypqobg2mxv1",
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"\0003\n- \a87\r\$4',!:(5\")2 6019?&3./;0",
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"\000\242\n+\t\\#=\r*{~\245|^<[}>]\b@\253\243\254\377\2613%_\2730",
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my $charset = join('', map { "\000" . substr($_, 1, 26) .
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"\000" . substr($_, 28, 3) . "\000" }
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@_ == 1 or croak "Usage: baudot2ascii(STRING)";
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while ($string ne '') {
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my $chr = ord($string) & 037;
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$string = substr($string, 1);
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if ($chr == 033 || $chr == 037) {
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$set = ord(substr($charset[$set], $chr, 1)) & 03;
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$result .= substr($charset[$set], $chr, 1);
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@_ == 1 or @_ == 2 or croak "Usage: ascii2baudot(STRING)";
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my $faint = @_ ? shift : 1;
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while ($string ne '') {
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my $chr = substr($string, 0, 1);
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$string = substr($string, 1);
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my $pos = index($charset[$set], $chr);
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if ($pos < 0 || $pos == 033 || $pos == 037) {
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$pos = index($charset, $chr);
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if ($pos < 0 || $chr eq "\000") {
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faint(SP_NOSUCHCHAR, ord($chr), "Baudot") if $faint;
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$string = sprintf("\\%03o", ord($chr)) . $string;
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$result .= ['[_', '__', '_[', '[[']->[$s];
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$result .= ['', '_', '[', '[[',
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]->[($set << 2) | $s];
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$result .= sprintf("%c", 0x40 + $pos);
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Charset::Baudot - allows to use Baudot string constants in ASCII programs (and v.v.)
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use Charset::Baudot 'baudot2ascii';
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my $a = baudot2ascii"(Baudot text)";
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I<Charset::Baudot> defines functions to convert between a subset of ASCII and a
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subset of nonstandard Baudot - the original Baudot allows only letters,
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numbers, and some punctuation. We assume that a "Shift to letters" code
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while already in letters mode means "Shift to lowercase" and "Shift to
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figures" while already in figures mode means "Shift to symbols". This allows
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to use up to 120 characters. However, for simplicity some characters are
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available in multiple sets, so the total is less than that.
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Two functions, I<baudot2ascii> and I<ascii2baudot>, are exportable (but
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not exported by default). They do the obvious thing to their first argument
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and return the transformed string.
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=head1 BAUDOT CHARACTER TABLE
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The following are the characters recognised. As described, the "shift"
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characters have nonstandard meaning.
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set Letters Lowercase Figures Symbols
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02 L/F L/F L/F L/F (line feed)
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04 Space Space Space Tab
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08 C/R C/R C/R C/R (carriage return)
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27 Figures Figures Symbols Symbols
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31 Lowercase Lowercase Letters Letters
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This module is part of CLC-INTERCAL.
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Copyright (C) 1999, 2000, 2002, 2006 Claudio Calvelli, all rights reserved.
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See files README and COPYING in the distribution for information.
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A qualified psychiatrist.
added
removed
INTERCAL/Charset/Baudot.pm
