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November 7, 2016 15:40
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#!/usr/bin/perl | |
# Author: Todd Larason <jtl@molehill.org> | |
# $XFree86: xc/programs/xterm/vttests/256colors2.pl,v 1.2 2002/03/26 01:46:43 dickey 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) + $blue, | |
($red ? ($red * 40 + 55) : 0), | |
($green ? ($green * 40 + 55) : 0), | |
($blue ? ($blue * 40 + 55) : 0)); | |
} | |
} | |
} | |
# colors 232-255 are a grayscale ramp, intentionally leaving out | |
# black and white | |
for ($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"; |
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