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- .ds Dc black
- .ds Cc \*(Dc
- .de CL \" Color selection macro
- . \"
- . \" $1=color (e.g. .CL red) or
- . \" $1=textcolor on backgroundcolor (e.g. .CL "red on blue")
- . \" $1=red green blue rgb (e.g. .CL ".2 .3 .4 rgb") or
- . \" $1=hue saturation brightness hsb (e.g. .CL ".5 .6 .7 hsb")
- . \" $2=text
- . \"
- . \" If no arguments are given the default color (usually black) will be
- . \" restored. If $2 is omitted the color selected by $1 remains in effect
- . \" until another color is selected. If two arguments are given $2 will be
- . \" printed in color $1 and then the default color will be restored.
- . \"
- . \" The color of the text and the background can be selected by setting $1
- . \" to "textcolor on backgroundcolor" where textcolor and backgroundcolor
- . \" can be any of the known colors. For example use .CL "white on black"
- . \" for reverse video printing. Changing color in a word can be accomplished
- . \" by preceeding the characters with a \X'SetColor:val' command, where val
- . \" is the color you wish to use. Named colors are case independent.
- . \"
- . \" Implementation details are device dependent and are handled in the
- . \" appropriate post-processor. Requesting a color that's not available
- . \" (eg. not defined in /usr/lib/postscript/color.ps) results in the use
- . \" of default colors - black or white on black for reverse video mode.
- . \"
- . \" All colors may not be supported on every output device, and the direct
- . \" specification of a color via an explicit rgb or hsb argument may also
- . \" be device dependent. In any case, to be safe on PostScript devices, all
- . \" numeric paramenters in the direct rgb or hsb specifications should lie
- . \" between 0 and 1 (inclusive). The names of the currently available colors
- . \" on PostScript printers are listed in file /usr/lib/postscript/color.ps.
- . \"
- .mk Ov
- .if \\n(.$=0 .ds Cc \\*(Dc
- .if \\n(.$=1 .ds Cc \\$1
- .if \\n(.$<2 \\X'SetColor:\\*(Cc'
- .if \\n(.$=2 \\X'SetColor:\\$1'\\c
- .if \\n(.$=2 'sp |\\n(Ovu
- .if \\n(.$=2 \\$2
- .if \\n(.$=2 .mk Ov
- .if \\n(.$=2 \\X'SetColor:\\*(Cc'\\c
- 'sp |\\n(Ovu
- ..
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