2014-05-09 13:56:40 -06:00
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#!/usr/bin/env perl
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# $XTermId: query-color.pl,v 1.5 2017/01/22 18:34:06 tom Exp $
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# -----------------------------------------------------------------------------
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# this file is part of xterm
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#
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2017-07-15 13:20:51 -06:00
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# Copyright 2012-2014,2017 by Thomas E. Dickey
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#
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# All Rights Reserved
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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# IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
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# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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# Except as contained in this notice, the name(s) of the above copyright
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# holders shall not be used in advertising or otherwise to promote the
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# sale, use or other dealings in this Software without prior written
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# authorization.
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# -----------------------------------------------------------------------------
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# Test the color-query features of xterm using OSC 4.
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# TODO: extend to the OSC 5 colors
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# TODO: show result in #rrggbb format.
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use strict;
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use warnings;
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use Getopt::Std;
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use IO::Handle;
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our ($opt_s);
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&getopts('s') || die(
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"Usage: $0 [options] [color1[-color2]]\n
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Options:\n
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-s use ^G rather than ST
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"
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);
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our $ST = $opt_s ? "\007" : "\x1b\\";
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sub no_reply($) {
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open TTY, "+</dev/tty" or die("Cannot open /dev/tty\n");
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autoflush TTY 1;
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my $old = `stty -g`;
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system "stty raw -echo min 0 time 5";
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print TTY @_;
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close TTY;
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system "stty $old";
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}
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sub get_reply($) {
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open TTY, "+</dev/tty" or die("Cannot open /dev/tty\n");
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autoflush TTY 1;
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my $old = `stty -g`;
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system "stty raw -echo min 0 time 5";
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print TTY @_;
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my $reply = <TTY>;
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close TTY;
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system "stty $old";
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if ( defined $reply ) {
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die("^C received\n") if ( "$reply" eq "\003" );
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}
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return $reply;
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}
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sub visible($) {
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my $reply = $_[0];
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my $n;
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my $result = "";
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for ( $n = 0 ; $n < length($reply) ; ) {
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my $c = substr( $reply, $n, 1 );
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if ( $c =~ /[[:print:]]/ ) {
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$result .= $c;
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}
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else {
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my $k = ord substr( $reply, $n, 1 );
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if ( ord $k == 0x1b ) {
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$result .= "\\E";
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}
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elsif ( $k == 0x7f ) {
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$result .= "^?";
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}
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elsif ( $k == 32 ) {
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$result .= "\\s";
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}
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elsif ( $k < 32 ) {
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$result .= sprintf( "^%c", $k + 64 );
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}
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elsif ( $k > 128 ) {
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$result .= sprintf( "\\%03o", $k );
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}
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else {
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$result .= chr($k);
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}
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}
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$n += 1;
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}
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return $result;
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}
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sub query_color($) {
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my $param = $_[0];
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my $reply;
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my $n;
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my $st = $opt_s ? qr/\007/ : qr/\x1b\\/;
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my $op = 4;
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my $osc = qr/\x1b]$op/;
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my $match = qr/${osc}.*${st}/;
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$reply = get_reply( "\x1b]$op;" . $param . ";?" . $ST );
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printf "query{%s}%*s", &visible($param), 3 - length($param), " ";
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if ( defined $reply ) {
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printf "%2d ", length($reply);
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if ( $reply =~ /${match}/ ) {
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$reply =~ s/^${osc}//;
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$reply =~ s/^;//;
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$reply =~ s/${st}$//;
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}
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else {
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printf "? ";
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}
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printf "{%s}", visible($reply);
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}
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printf "\n";
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}
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sub query_colors($$) {
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my $lo = $_[0];
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my $hi = $_[1];
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my $n;
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for ( $n = $lo ; $n <= $hi ; ++$n ) {
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query_color($n);
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}
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}
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if ( $#ARGV >= 0 ) {
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while ( $#ARGV >= 0 ) {
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if ( $ARGV[0] =~ /-/ ) {
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my @args = split /-/, $ARGV[0];
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&query_colors( $args[0], $args[1] );
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}
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else {
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&query_colors( $ARGV[0], $ARGV[0] );
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}
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shift @ARGV;
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}
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}
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else {
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&query_colors( 0, 7 );
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}
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