colourscheme

#! /bin/sh

s="@g#5 "
f=3
b=4
ff=9
bb=10
interleave=true

while	case "$1" in
	-h)	cat <</EOH
${0##*/} [OPTIONS]
Colour scheme display, showing 16 ANSI colours foreground/background.

  -s "demo"  use demo string
  -b         separate bright sections
  -r         use reverse display
/EOH
		exit;;
	-s)	shift
		s="$1"
		true;;
	-b)	interleave=false
		true;;
	-r)	f="7;4"
		b=3
		ff="7;10"
		bb=9
		true;;
	*)	false;;
	esac
do	shift
done

if $interleave
then
	for fg in 0 1 2 3 4 5 6 7
	do
		echo -n "[$f${fg}m"
		for bg in 0 1 2 3 4 5 6 7
		do	echo -n "[$b${bg}m$s[$bb${bg}m$s"
		done
		echo ""
		echo -n "[$ff${fg}m"
		for bg in 0 1 2 3 4 5 6 7
		do	echo -n "[$b${bg}m$s[$bb${bg}m$s"
		done
		echo ""
	done
else
	for fg in 0 1 2 3 4 5 6 7
	do
		echo -n "[$f${fg}m"
		for bg in 0 1 2 3 4 5 6 7
		do	echo -n "[$b${bg}m$s"
		done
		for bg in 0 1 2 3 4 5 6 7
		do	echo -n "[$bb${bg}m$s"
		done
		echo ""
	done
	for fg in 0 1 2 3 4 5 6 7
	do
		echo -n "[$ff${fg}m"
		for bg in 0 1 2 3 4 5 6 7
		do	echo -n "[$b${bg}m$s"
		done
		for bg in 0 1 2 3 4 5 6 7
		do	echo -n "[$bb${bg}m$s"
		done
		echo ""
	done
fi