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#!/bin/sh
# demo as in starlight.png
# requires truecolor
# for every color:
# color, bright color | bold color, bright bold color
# low level output coding
pcol() { printf '%b[%d;2;%d;%d;%dm' '\033' "$1" "$2" "$3" "$4"; }
pcolx() { pcol "$1" 0x"$2" 0x"$3" 0x"$4"; }
fg() { pcol 38 "$@"; }
fgx() { pcolx 38 "$@"; }
bg() { pcol 48 "$@"; }
bgx() { pcolx 48 "$@"; }
bold() { printf '%b[1m' '\033'; }
reset() { printf '%b[0m' '\033'; }
# logical input processing
colsep() { echo $* | fold -w2; }
fgc() { fgx $(colsep $1); }
bgc() { bgx $(colsep $1); }
# loop
demopart() {
eval fgc '$'"$1"
if [ $# -gt 1 ]; then
bold
printf 'bold '
fi
# 9 is the length of brmagenta
printf '%-9s' "$1"
reset
}
demo() {
for col in black red green yellow blue magenta cyan white; do
printf '%b %b | %b %b\n' "$(demopart $col)" "$(demopart br$col)" \
"$(demopart $col bold)" "$(demopart br$col bold)"
done
}
. ./colors.sh
demo
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