1#!/usr/bin/env perl
2# $XTermId: 256colors.pl,v 1.6 2017/01/22 18:34:06 tom Exp $
3# -----------------------------------------------------------------------------
4# this file is part of xterm
5#
6# Copyright 1999-2014,2017 by Thomas E. Dickey
7#
8#                         All Rights Reserved
9#
10# Permission is hereby granted, free of charge, to any person obtaining a
11# copy of this software and associated documentation files (the
12# "Software"), to deal in the Software without restriction, including
13# without limitation the rights to use, copy, modify, merge, publish,
14# distribute, sublicense, and/or sell copies of the Software, and to
15# permit persons to whom the Software is furnished to do so, subject to
16# the following conditions:
17#
18# The above copyright notice and this permission notice shall be included
19# in all copies or substantial portions of the Software.
20#
21# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
24# IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
25# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
26# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
27# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28#
29# Except as contained in this notice, the name(s) of the above copyright
30# holders shall not be used in advertising or otherwise to promote the
31# sale, use or other dealings in this Software without prior written
32# authorization.
33# -----------------------------------------------------------------------------
34
35use strict;
36use warnings;
37
38# This uses 33 print-lines on an 80-column display.  Printing the numbers in
39# hexadecimal would make it compact enough for 24x80, but less readable.
40
41our ( $bg, $fg );
42
43for ( $bg = 0 ; $bg < 256 ; $bg++ ) {
44
45    # print "\x1b[9;1H\x1b[2J";
46    for ( $fg = 0 ; $fg < 256 ; $fg++ ) {
47        print "\x1b[48;5;${bg}m\x1b[38;5;${fg}m";
48        printf "%03.3d/%03.3d ", $fg, $bg;
49    }
50    print "\n";
51    sleep 1;
52}
53