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#!/usr/bin/env perl
# $XTermId: 88colors2.pl,v 1.22 2022/10/11 00:05:34 tom Exp $
# -----------------------------------------------------------------------------
# this file is part of xterm
#
# Copyright 1999-2021,2022 by Thomas E. Dickey
# Copyright 1999 by Steve Wall
#
# 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.
# -----------------------------------------------------------------------------
#
# Adapted from 256colors2.pl
# If -s is not given, use the resources for colors 0-15 - usually more-or-less
# a reproduction of the standard ANSI colors, but possibly more pleasing
# shades.
use strict;
use warnings;
use Getopt::Std;
use Encode 'encode_utf8';
our ( $opt_8, $opt_c, $opt_C, $opt_d, $opt_h, $opt_q, $opt_r, $opt_s, $opt_u );
$Getopt::Std::STANDARD_HELP_VERSION = 1;
&getopts('8cCdhqrsu') || die("Usage: $0 [options]");
die(
"Usage: $0 [options]\n
Options:
-8 use 8-bit controls
-c use colons for separating parameter values in SGR 38/48
-C like -c, but allow semicolon plus colon
-d use rgb values rather than palette index
-h display this message
-q quieter output by merging all palette initialization
-r display the reverse of the usual palette
-s modify system colors, i.e., 0..15
-u use UTF-8 when emitting 8-bit controls
"
) if ($opt_h);
our $cube = 4;
our (@steps);
our ( $red, $green, $blue );
our ( $gray, $level, $color );
our ( $csi, $osc, $sep, $sep2, $st );
our @rgb;
sub map_cube($) {
my $value = $_[0];
$value = ( 3 - $value ) if defined($opt_r);
return $value;
}
sub map_gray($) {
my $value = $_[0];
$value = ( 7 - $value ) if defined($opt_r);
return $value;
}
sub define_color($$$$) {
my $index = $_[0];
my $r = $_[1];
my $g = $_[2];
my $b = $_[3];
printf( "%s4", $osc ) unless ($opt_q);
printf( ";%d;rgb:%2.2x/%2.2x/%2.2x", $index, $r, $g, $b );
printf( "%s", $st ) unless ($opt_q);
$rgb[$index] = sprintf "%d%s%d%s%d", $r, $sep, $g, $sep, $b;
}
sub select_color($) {
my $index = $_[0];
if ( $opt_d and defined( $rgb[$index] ) ) {
printf "%s48%s2%s%sm ", $csi, $sep, $sep2, $rgb[$index];
}
else {
printf "%s48%s5%s%sm ", $csi, $sep, $sep2, $index;
}
}
sub system_color($$$$) {
my $color = shift;
my $red = shift;
my $green = shift;
my $blue = shift;
&define_color( 15 - $color, $red, $green, $blue ) if ($opt_r);
&define_color( $color, $red, $green, $blue ) unless ($opt_r);
}
if ($opt_8) {
$csi = "\x9b";
$osc = "\x9d";
$st = "\x9c";
}
else {
$csi = "\x1b[";
$osc = "\x1b]";
$st = "\x1b\\";
}
if ($opt_c) {
$sep = ":";
}
else {
$sep = ";";
}
$sep2 = $sep;
if ($opt_C) {
$sep = ";";
$sep2 = ":";
}
if ( $opt_8 and $opt_u ) {
if ( open( FP, "locale 2>/dev/null |" ) ) {
my (@locale) = <FP>;
chomp @locale;
close(FP);
for my $n ( 0 .. $#locale ) {
if ( $locale[$n] =~ /^LC_CTYPE=/ ) {
binmode( STDOUT, ":utf8" ) if ( $locale[$n] =~ /utf.?8/i );
last;
}
}
}
}
printf( "%s4", $osc ) if ($opt_q);
if ($opt_s) {
&system_color( 0, 0, 0, 0 );
&system_color( 1, 205, 0, 0 );
&system_color( 2, 0, 205, 0 );
&system_color( 3, 205, 205, 0 );
&system_color( 4, 0, 0, 238 );
&system_color( 5, 205, 0, 205 );
&system_color( 6, 0, 205, 205 );
&system_color( 7, 229, 229, 229 );
&system_color( 8, 127, 127, 127 );
&system_color( 9, 255, 0, 0 );
&system_color( 10, 0, 255, 0 );
&system_color( 11, 255, 255, 0 );
&system_color( 12, 92, 92, 255 );
&system_color( 13, 255, 0, 255 );
&system_color( 14, 0, 255, 255 );
&system_color( 15, 255, 255, 255 );
}
# colors 16-79 are a 4x4x4 color cube
@steps = ( 0, 139, 205, 255 );
for ( $red = 0 ; $red < $cube ; $red++ ) {
for ( $green = 0 ; $green < $cube ; $green++ ) {
for ( $blue = 0 ; $blue < $cube ; $blue++ ) {
&define_color(
16 + ( map_cube($red) * $cube * $cube ) +
( map_cube($green) * $cube ) +
map_cube($blue),
int( $steps[$red] ),
int( $steps[$green] ),
int( $steps[$blue] )
);
}
}
}
# colors 80-87 are a grayscale ramp, intentionally leaving out
# black and white
for ( $gray = 0 ; $gray < 8 ; $gray++ ) {
$level = ( map_gray($gray) * 23.18181818 ) + 46.36363636;
if ( $gray > 0 ) { $level += 23.18181818; }
&define_color( 80 + $gray, int($level), int($level), int($level) );
}
printf( "%s", $st ) if ($opt_q);
# display the colors
# first the system ones:
print "System colors:\n";
for ( $color = 0 ; $color < 8 ; $color++ ) {
&select_color($color);
}
printf "%s0m\n", $csi;
for ( $color = 8 ; $color < 16 ; $color++ ) {
&select_color($color);
}
printf "%s0m\n\n", $csi;
# now the color cube
print "Color cube, ${cube}x${cube}x${cube}:\n";
for ( $green = 0 ; $green < $cube ; $green++ ) {
for ( $red = 0 ; $red < $cube ; $red++ ) {
for ( $blue = 0 ; $blue < $cube ; $blue++ ) {
$color = 16 + ( $red * $cube * $cube ) + ( $green * $cube ) + $blue;
&select_color($color);
}
printf "%s0m ", $csi;
}
print "\n";
}
# now the grayscale ramp
print "Grayscale ramp:\n";
for ( $color = 80 ; $color < 88 ; $color++ ) {
&select_color($color);
}
printf "%s0m\n", $csi;
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