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#!/usr/bin/env perl
# $XTermId: iso2022.pl,v 1.5 2021/02/13 01:24:32 tom Exp $
# -----------------------------------------------------------------------------
# Copyright 2021 by Thomas E. Dickey
#
# All Rights Reserved
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Except as contained in this notice, the name(s) of the above copyright
# holders shall not be used in advertising or otherwise to promote the
# sale, use or other dealings in this Software without prior written
# authorization.
# -----------------------------------------------------------------------------
# show ISO-2022 characters, by default GL and GR, optionally G1/G2/G3
use strict;
use warnings;
use Getopt::Std;
$| = 1;
our ( $opt_k, $opt_n, $opt_q, $opt_s );
sub doit() {
my $GL = "";
printf "-- vile: fk=8bit\n";
my $lo = 0;
if ($opt_q) {
$GL =
"`1234567890-=\n"
. "qwertyuiop[]\\\n"
. "asdfghjkl;'\n"
. "zxcvbnm,./\n"
. "~!@#$%^&*()_+\n"
. "QWERTYUIOP{}|\n"
. "ASDFGHJKL:\"\n"
. "ZXCVBNM<>?";
}
else {
$lo = $opt_k ? 0 : 32;
for my $n ( $lo .. 127 ) {
$GL .= chr($n);
$GL .= "\n" if ( ( ( $n - 31 ) % 16 ) == 0 );
}
}
my $GR = "";
for my $n ( 0 .. ( length($GL) - 1 ) ) {
my $c = substr( $GL, $n, 1 );
if ( ord($c) == 10 and ( not $opt_k or $n != 10 ) ) {
$GR .= $c;
}
else {
$GR .= chr( ord($c) + 128 );
}
}
if ($opt_s) {
$GL =~ s/([^\n])/ $1/g;
$GR =~ s/([^\n])/ $1/g;
}
printf "GL:\n%s\n", $GL;
printf "GR:\n%s\n", $GR;
}
sub main::HELP_MESSAGE() {
printf STDERR <<EOF
Usage: $0 [options]
Options:
-k assume 128-159 are printable.
-n print hex value before each character
-q use QWERTY
-s space between characters
EOF
;
exit 1;
}
$Getopt::Std::STANDARD_HELP_VERSION = 1;
&getopts('knqs') || main::HELP_MESSAGE;
&doit;
1;
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