mirror of https://github.com/sbrl/bin.git
81 lines
3.4 KiB
Bash
Executable File
81 lines
3.4 KiB
Bash
Executable File
#!/bin/bash
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# From http://unix.stackexchange.com/a/124460/64687
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useage() {
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printf "\n\e[1;4mAscii Escape Code Helper Utility\e[m\n\n"
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printf " \e[1mUseage:\e[m colors.sh [-|-b|-f|-bq|-fq|-?|?] [start] [end] [step]\n\n"
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printf "The values for the first parameter may be one of the following:\n\n"
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printf " \e[1m-\e[m Will result in the default output.\n"
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printf " \e[1m-b\e[m This will display the 8 color version of this chart.\n"
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printf " \e[1m-f\e[m This will display the 256 color version of this chart using foreground colors.\n"
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printf " \e[1m-q\e[m This will display the 256 color version of this chart without the extra text.\n"
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printf " \e[1m-bq\e[m This will display the 8 color version of this chart without the extra text.\n"
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printf " \e[1m-fq\e[m This will display the 256 color version of this chart using foreground colors without the extra text.\n"
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printf " \e[1m-?|?\e[m Displays this help screen.\n"
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printf "\nThe remaining parameters are only used if the first parameter is one of: \e[1m-,-f,q,fq\e[m\n\n"
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printf " \e[1mstart\e[m The color index to begin display at.\n"
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printf " \e[1mend\e[m The color index to stop display at.\n"
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printf " \e[1mstart\e[m The number of indexes to increment color by each iteration.\n\n\n"
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}
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verbose() {
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if [[ "$1" != "-q" && "$1" != "-fq" && "$1" != "-bq" ]]; then
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printf "\nTo control the display style use \e[1m%s\e[m where \e[1m%s\e[m is:\n" '\e[{$value}[:{$value}]m' '{$value}'
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printf "\n 0 Normal \e[1m1 Bold\e[m \e[2m2 Dim\e[m \e[3m3 ???\e[m \e[4m4 Underlined\e[m \e[5m5 Blink\e[m \e[6m6 ???\e[m \e[7m7 Inverted\e[m \e[8m8 Hidden\e[m\n\n"
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printf "If \e[1m%s\e[m is not provided it will reset the display.\n\n" '{$value}'
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fi
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}
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eight_color() {
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local fgc bgc vals seq0
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if [ "$1" != "-bq" ]; then
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printf "\n\e[1;4m8 Color Escape Value Pallette\e[m\n\n"
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printf "Color escapes are \e[1m%s\e[m\n" '\e[${value};...;${value}m'
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printf " Values \e[1m30..37\e[m are \e[1mforeground\e[m colors\n"
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printf " Values \e[1m40..47\e[m are \e[1mbackground\e[m colors\n\n"
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fi
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for fgc in {30..37}; do
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for bgc in {40..47}; do
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fgc=${fgc#37}
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bgc=${bgc#40}
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vals="${fgc:+$fgc;}${bgc}"
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vals=${vals%%;}
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seq0="${vals:+\e[${vals}m}"
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printf " %-9s" "${seq0:-(default)}"
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printf " ${seq0}TEXT\e[m"
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printf " \e[${vals:+${vals+$vals;}}1mBOLD\e[m"
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done
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printf "\e[0m\n"
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done
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}
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if [[ "$1" == "-b" || "$1" == "-bq" ]]; then
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eight_color "$1"
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verbose "$1"
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elif [[ "$1" == "" || "$1" == "-" || "$1" == "-f" || "$1" == "-q" || "$1" == "-fq" ]]; then
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start=${2:-0}
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end=${3:-255}
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step=${4:-1}
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color=$start
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style="48;5;"
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if [[ "$1" == "-f" || "$1" == "-fq" ]]; then
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style="38;5;"
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fi
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perLine=$(( ( $(tput cols) - 2 ) / 9 ));
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if [[ "$1" != "-q" && "$1" != "-fq" ]]; then
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printf "\n\e[1;4m256 Color Escape Value Pallette\e[0m\n\n"
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printf " \e[1m%s\e[m for \e[1mbackground\e[m colors\n \e[1m%s\e[m for \e[1mforeground\e[m colors\n\n" '\e[48;5;${value}m' '\e[38;5;${value}m'
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fi
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while [ $color -le $end ]; do
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printf "\e[m \e[${style}${color}m %3d \e[m " $color
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((color+=step))
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if [ $(( ( ( $color - $start ) / $step ) % $perLine )) -eq 0 ]; then
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printf "\n"
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fi
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done
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printf "\e[m\n"
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verbose "$1"
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else
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useage
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fi
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