# vim: syntax=bash:

reset_esc='\e[0m'

# bgcol <color> <command>
# Use the specified color as background
function bgcol {
	_bashcols_bgcol_conditionalsuffix=bg
	"$@"
	_bashcols_bgcol_conditionalsuffix=
}


# applies the given color id, executes the command, then resets the color
function colout() {
	if [[ $# -eq 0 ]]; then
		echo "usage: colout <color id> <command>"
		return
	fi

	local color="$1"
	shift
	if [[ -z $_bashcols_bgcol_conditionalsuffix ]]; then
		tput setaf "$color"
	else
		tput setab "$color"
	fi
	"$@"
	tput sgr0
}

# defines a new color function
# and a variable named <colorname>_colid that contains the actual value for the color function
function defcol() {
	if [[ $# -ne 2 ]]; then
		echo "usage: defcol <color name> <color id>"
		return
	fi

	local name="$1"
	local color="$2"

	eval "${name}_colid=$color"
	eval "${name}_esc=\"\\e[38;5;${color}m\""
	eval "${name}_escbg=\"\\e[48;5;${color}m\""
	eval "function $name { colout $color \"\$@\"; }"
}

# displays all 256 colors
function dispcollist() {
	local width=${1:-16}
	local idx=0
	for colid in {1..256}; do
		colout $colid printf "%3s " $colid
		let "idx++" || true
		if ! (( $idx % $width )); then
			printf "\n"
		fi
	done
}	

function colthis {
	local name="$1"
	shift
	eval "printf \"%s\" \"\${${name}_esc${_bashcols_bgcol_conditionalsuffix}}$@$reset_esc\""
}

# default colors
defcol red      1
defcol green    2
defcol brown    3
defcol blue     4
defcol magenta  5
defcol cyan     6
defcol white    7
defcol grey     8
defcol redl     9
defcol greenl   10
defcol yellow   11
defcol bluel    12
defcol magenta  13
defcol cyanl    14
defcol whitel   15
defcol black    16

_bashlib_bashcols=1