.zshrc.color

clear="%{%}"
bold="%{%}"
reset_bold="%{%}"
dim="%{%}"
reset_dim="%{%}"
underline="%{%}"
reset_underline="%{%}"
blink="%{%}"
reset_blink="%{%}"
inverted="%{%}"
reset_inverted="%{%}"
hidden="%{%}"
reset_hidden="%{%}"

fg_default="%{%}"
fg_black="%{%}"
fg_red="%{%}"
fg_green="%{%}"
fg_yellow="%{%}"
fg_blue="%{%}"
fg_magenta="%{%}"
fg_cyan="%{%}"
fg_lightgray="%{%}"
fg_darkgray="%{%}"
fg_lightred="%{%}"
fg_lightgreen="%{%}"
fg_lightyellow="%{%}"
fg_lightblue="%{%}"
fg_lightmagenta="%{%}"
fg_lightcyan="%{%}"
fg_white="%{%}"


bg_default="%{%}"
bg_black="%{%}"
bg_red="%{%}"
bg_green="%{%}"
bg_yellow="%{%}"
bg_blue="%{%}"
bg_magenta="%{%}"
bg_cyan="%{%}"
bg_lightgray="%{%}"
bg_darkgray="%{%}"
bg_lightred="%{%}"
bg_lightgreen="%{%}"
bg_lightyellow="%{%}"
bg_lightblue="%{%}"
bg_lightmagenta="%{%}"
bg_lightcyan="%{%}"
bg_white="%{%}"

# 256color
# [38;5;${fg_color_number}m
# [48;5;${bg_color_number}m

# truecolor
# \x1b[${bg};2;${red};${green};${blue}m
# e.g) \x1b[$38;2;$255;100;0m -> orange

function 16color_test() {
    for clbg in {40..47} {100..107} 49 ; do
        #Foreground
        for clfg in {30..37} {90..97} 39 ; do
            #Formatting
            for attr in 0 1 2 4 5 7 ; do
                #Print the result
                echo -en "\e[${attr};${clbg};${clfg}m ^[${attr};${clbg};${clfg}m \e[0m"
            done
            echo #Newline
        done
    done
}

function 256color_test() {
    for fgbg in 38 48 ; do #Foreground/Background
        for color in {0..256} ; do #Colors
        	    #Display the color
        	    echo -en "\e[${fgbg};5;${color}m ${color}\t\e[0m"
        	    #Display 10 colors per lines
        	    if [ $(expr "$(expr $color + 1)" % 10) -eq 0 ] ; then
        	        echo #New line
        	    fi
        	    done
        	echo #New line
    done
}

function truecolor_test() {
    awk 'BEGIN{
        s="/\\/\\/\\/\\/\\"; s=s s s s s s s s;
        for (colnum = 0; colnum<77; colnum++) {
            r = 255-(colnum*255/76);
            g = (colnum*510/76);
            b = (colnum*255/76);
            if (g>255) g = 510-g;
            printf "\033[48;2;%d;%d;%dm", r,g,b;
            printf "\033[38;2;%d;%d;%dm", 255-r,255-g,255-b;
            printf "%s\033[0m", substr(s,colnum+1,1);
        }
        printf "\n";
    }'
}