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Old 05-16-2005, 02:51 PM
ErnieLongmire ErnieLongmire is offline
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Join Date: Nov 2004
Posts: 18
Quote:
Originally Posted by Maureen
Thanks for following up on this. What terminal emulation and font are you using? Could you please post your 256colors2.pl script?
Maureen -- I'm using Xterm emu, ANSI color selected. Font is Bitstream Vera Sans Mono Regular 10. When I switch to Courier New and run 256colors2.pl again, the new output is correct. When I switch back to Bitstream Vera Sans Mono and the screen redraws with the new font, the original output is redrawn with the correct colors. When I run 256colors2.pl one more time, the output is also correct.

Here's the script:

Code:
#!/usr/bin/perl
# Author: Todd Larason <jtl@molehill.org>
# $XFree86: xc/programs/xterm/vttests/256colors2.pl,v 1.1 1999/07/11 08:49:54 dawes Exp $

# use the resources for colors 0-15 - usually more-or-less a
# reproduction of the standard ANSI colors, but possibly more
# pleasing shades

# colors 16-231 are a 6x6x6 color cube
for ($red = 0; $red < 6; $red++) {
    for ($green = 0; $green < 6; $green++) {
        for ($blue = 0; $blue < 6; $blue++) {
            printf("\x1b]4;%d;rgb:%2.2x/%2.2x/%2.2x\x1b\\",
                   16 + ($red * 36) + ($green * 6) + $blue,
                   int ($red * 42.5),
                   int ($green * 42.5),
                   int ($blue * 42.5));
        }
    }
}

# colors 232-255 are a grayscale ramp, intentionally leaving out
# black and white
for ($gray = 0; $gray < 24; $gray++) {
    $level = ($gray * 10) + 8;
    printf("\x1b]4;%d;rgb:%2.2x/%2.2x/%2.2x\x1b\\",
           232 + $gray, $level, $level, $level);
}


# display the colors

# first the system ones:
print "System colors:\n";
for ($color = 0; $color < 8; $color++) {
    print "\x1b[48;5;${color}m  ";
}
print "\x1b[0m\n";
for ($color = 8; $color < 16; $color++) {
    print "\x1b[48;5;${color}m  ";
}
print "\x1b[0m\n\n";

# now the color cube
print "Color cube, 6x6x6:\n";
for ($green = 0; $green < 6; $green++) {
    for ($red = 0; $red < 6; $red++) {
        for ($blue = 0; $blue < 6; $blue++) {
            $color = 16 + ($red * 36) + ($green * 6) + $blue;
            print "\x1b[48;5;${color}m  ";
        }
        print "\x1b[0m ";
    }
    print "\n";
}


# now the grayscale ramp
print "Grayscale ramp:\n";
for ($color = 232; $color < 256; $color++) {
    print "\x1b[48;5;${color}m  ";
}
print "\x1b[0m\n";