Improved color framework.

themes/colors.theme.bash

@@ -1,89 +1,240 @@
 #!/bin/bash
 
-black="\[\e[0;30m\]"
-red="\[\e[0;31m\]"
-green="\[\e[0;32m\]"
-yellow="\[\e[0;33m\]"
-blue="\[\e[0;34m\]"
-purple="\[\e[0;35m\]"
-cyan="\[\e[0;36m\]"
-white="\[\e[1;37m\]"
-orange="\[\e[33;40m\]"
+function __make_ansi {
+  echo "\[\e[$1m\]"
+}
+
+function __make_echo {
+  echo "\033[$1m"
+}
 
 
-bold_black="\[\e[1;30m\]"
-bold_red="\[\e[1;31m\]"
-bold_green="\[\e[1;32m\]"
-bold_yellow="\[\e[1;33m\]"
-bold_blue="\[\e[1;34m\]"
-bold_purple="\[\e[1;35m\]"
-bold_cyan="\[\e[1;36m\]"
-bold_white="\[\e[1;37m\]"
-bold_orange="\[\e[1;33;40m\]"
+function __reset {
+  echo "0${1:+;$1}"
+}
 
-underline_black="\[\e[4;30m\]"
-underline_red="\[\e[4;31m\]"
-underline_green="\[\e[4;32m\]"
-underline_yellow="\[\e[4;33m\]"
-underline_blue="\[\e[4;34m\]"
-underline_purple="\[\e[4;35m\]"
-underline_cyan="\[\e[4;36m\]"
-underline_white="\[\e[4;37m\]"
-underline_orange="\[\e[4;33;40m\]"
+function __bold {
+  echo "${1:+$1;}1"
+}
 
-background_black="\[\e[40m\]"
-background_red="\[\e[41m\]"
-background_green="\[\e[42m\]"
-background_yellow="\[\e[43m\]"
-background_blue="\[\e[44m\]"
-background_purple="\[\e[45m\]"
-background_cyan="\[\e[46m\]"
-background_white="\[\e[47m\]"
+function __faint {
+  echo "${1:+$1;}2"
+}
+
+function __italic {
+  echo "${1:+$1;}3"
+}
+
+function __underline {
+  echo "${1:+$1;}4"
+}
+
+function __negative {
+  echo "${1:+$1;}7"
+}
+
+function __crossed {
+  echo "${1:+$1;}8"
+}
 
 
-normal="\[\e[00m\]"
-reset_color="\[\e[39m\]"
+function __normal_fg {
+  echo "3$1"
+}
+
+function __normal_bg {
+  echo "4$1"
+}
+
+function __bright_fg {
+  echo "9$1"
+}
+
+function __bright_bg {
+  echo "10$1"
+}
+
+
+function __color_black   {
+  echo "0"
+}
+
+function __color_red   {
+  echo "1"
+}
+
+function __color_green   {
+  echo "2"
+}
+
+function __color_yellow  {
+  echo "3"
+}
+
+function __color_blue  {
+  echo "4"
+}
+
+function __color_magenta {
+  echo "5"
+}
+
+function __color_cyan  {
+  echo "6"
+}
+
+function __color_white   {
+  echo "7"
+}
+
+function __color_rgb {
+  r=$1
+  g=$2
+  b=$3
+
+  [[ r == g && g == b ]] && echo $(( $r / 11 + 232 )) && return # gray range above 232
+  echo "8;5;$(( ($r * 36  + $b * 6 + $g) / 51 + 16 ))"
+}
+
+function __color {
+  color=$1
+  side=${2:-fg}
+  mode=${3:-normal}
+  echo "$(__${mode}_${side} $(__color_${color} $@))"
+}
+
+function __color_parse {
+  while [ $# -gt 0 ]
+  do
+    case "$1" in
+      reset|bold|faint|italic|underline|negative|crossed)
+        output="$(__$1 $output)"
+        shift
+
+        ;;
+
+      black|red|green|yellow|blue|magenta|cyan|white|rgb)
+        color="$1"
+        shift
+
+        case "$1" in
+          fg|bg)
+            side="$1"
+            shift
+
+            case "$1" in
+              normal|bright)
+                mode="$1"
+                shift
+              ;;
+            esac
+
+          ;;
+        esac
+
+        [[ $color == "rgb" ]] && params="$1 $2 $3" && shift 3
+        output=${output:+$output;}$(__color $color $side $mode $params)
+
+      ;;
+
+      *) shift;;
+    esac
+  done
+
+  echo ${output}
+}
+
+function color {
+  echo $(__make_ansi $(__color_parse $@))
+}
+
+function echo_color {
+  echo $(__make_echo $(__color_parse $@))
+}
+
+black="$(color black)"
+red="$(color red)"
+green="$(color green)"
+yellow="$(color yellow)"
+blue="$(color blue)"
+purple="$(color magenta)"
+cyan="$(color cyan)"
+white="$(color white bold)"
+orange="$(color red fg bright)"
+
+bold_black="$(color black bold)"
+bold_red="$(color red bold)"
+bold_green="$(color green bold)"
+bold_yellow="$(color yellow bold)"
+bold_blue="$(color blue bold)"
+bold_purple="$(color magenta bold)"
+bold_cyan="$(color cyan bold)"
+bold_white="$(color white bold)"
+bold_orange="$(color red fg bright bold)"
+
+underline_black="$(color black underline)"
+underline_red="$(color red underline)"
+underline_green="$(color green underline)"
+underline_yellow="$(color yellow underline)"
+underline_blue="$(color blue underline)"
+underline_purple="$(color magenta underline)"
+underline_cyan="$(color cyan underline)"
+underline_white="$(color white underline)"
+underline_orange="$(color red fg bright underline)"
+
+background_black="$(color black bg)"
+background_red="$(color red bg)"
+background_green="$(color green bg)"
+background_yellow="$(color yellow bg)"
+background_blue="$(color blue bg)"
+background_purple="$(color magenta bg)"
+background_cyan="$(color cyan bg)"
+background_white="$(color white bold bg)"
+background_orange="$(color red bg bright)"
+
+normal="$(color reset)"
+reset_color="$(__make_ansi 39)"
 
 # These colors are meant to be used with `echo -e`
-echo_black="\033[0;30m"
-echo_red="\033[0;31m"
-echo_green="\033[0;32m"
-echo_yellow="\033[0;33m"
-echo_blue="\033[0;34m"
-echo_purple="\033[0;35m"
-echo_cyan="\033[0;36m"
-echo_white="\033[1;37m"
-echo_orange="\033[33;40m"
+echo_black="$(echo_color black)"
+echo_red="$(echo_color red)"
+echo_green="$(echo_color green)"
+echo_yellow="$(echo_color yellow)"
+echo_blue="$(echo_color blue)"
+echo_purple="$(echo_color magenta)"
+echo_cyan="$(echo_color cyan)"
+echo_white="$(echo_color white bold)"
+echo_orange="$(echo_color red fg bright)"
 
+echo_bold_black="$(echo_color black bold)"
+echo_bold_red="$(echo_color red bold)"
+echo_bold_green="$(echo_color green bold)"
+echo_bold_yellow="$(echo_color yellow bold)"
+echo_bold_blue="$(echo_color blue bold)"
+echo_bold_purple="$(echo_color magenta bold)"
+echo_bold_cyan="$(echo_color cyan bold)"
+echo_bold_white="$(echo_color white bold)"
+echo_bold_orange="$(echo_color red fg bright bold)"
 
-echo_bold_black="\033[1;30m"
-echo_bold_red="\033[1;31m"
-echo_bold_green="\033[1;32m"
-echo_bold_yellow="\033[1;33m"
-echo_bold_blue="\033[1;34m"
-echo_bold_purple="\033[1;35m"
-echo_bold_cyan="\033[1;36m"
-echo_bold_white="\033[1;37m"
-echo_bold_orange="\033[1;33;40m"
+echo_underline_black="$(echo_color black underline)"
+echo_underline_red="$(echo_color red underline)"
+echo_underline_green="$(echo_color green underline)"
+echo_underline_yellow="$(echo_color yellow underline)"
+echo_underline_blue="$(echo_color blue underline)"
+echo_underline_purple="$(echo_color magenta underline)"
+echo_underline_cyan="$(echo_color cyan underline)"
+echo_underline_white="$(echo_color white underline)"
+echo_underline_orange="$(echo_color red fg bright underline)"
 
-echo_underline_black="\033[4;30m"
-echo_underline_red="\033[4;31m"
-echo_underline_green="\033[4;32m"
-echo_underline_yellow="\033[4;33m"
-echo_underline_blue="\033[4;34m"
-echo_underline_purple="\033[4;35m"
-echo_underline_cyan="\033[4;36m"
-echo_underline_white="\033[4;37m"
-echo_underline_orange="\033[4;33;40m"
+echo_background_black="$(echo_color black bg)"
+echo_background_red="$(echo_color red bg)"
+echo_background_green="$(echo_color green bg)"
+echo_background_yellow="$(echo_color yellow bg)"
+echo_background_blue="$(echo_color blue bg)"
+echo_background_purple="$(echo_color magenta bg)"
+echo_background_cyan="$(echo_color cyan bg)"
+echo_background_white="$(echo_color white bold bg)"
+echo_background_orange="$(echo_color red bg bright)"
 
-echo_background_black="\033[40m"
-echo_background_red="\033[41m"
-echo_background_green="\033[42m"
-echo_background_yellow="\033[43m"
-echo_background_blue="\033[44m"
-echo_background_purple="\033[45m"
-echo_background_cyan="\033[46m"
-echo_background_white="\033[47m"
-
-echo_normal="\033[00m"
-echo_reset_color="\033[39m"
+echo_normal="$(echo_color reset)"
+echo_reset_color="$(__make_ansi 39)"