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#!/usr/bin/env bash
#--- 256 colour functions
# requires pb_number
# usage:
# source ./pb
# printf %b "$(pb_bg 196)$(pb_fg 254) RED $(pb_nc)\n"
pb_nc() {
if [ -z "$TERM" ] || (($(tput colors) != 256)); then
return 1
fi
printf '\033[0;0m';
return 0
}
pb_fg() {
if [ -z "$TERM" ] || (($(tput colors) != 256)); then
return 1
fi
if [ -z "$1" ] || (("$1" > 255)) || ! pb_isuint "$1" ; then
return 1
fi
printf %s "\033[38;5;$1m"
return 0
}
pb_bg() {
if [ -z "$TERM" ] || (($(tput colors) != 256)); then
return 1
fi
if [ -z "$1" ] || (("$1" > 255)) || ! pb_isuint "$1" ; then
return 1
fi
printf %s "\033[48;5;$1m"
return 0
}
pb_ef() {
case $1 in
"bold")
printf %s "\033[1m"
return 0
;;
"dim")
printf %s "\033[2m"
return 0
;;
"italic")
printf %s "\033[3m"
return 0
;;
"underscore")
printf %s "\033[4m"
return 0
;;
"blink")
printf %s "\033[5m"
return 0
;;
"reverse")
printf %s "\033[7m"
return 0
;;
"hidden")
printf %s "\033[8m"
return 0
;;
"strikethrough")
printf %s "\033[9m"
return 0
;;
*)
return 1
;;
esac
}
# end 256 colour functions
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