From 6d4e9ce8a8d212d3255fc24117e02b40087eb5c7 Mon Sep 17 00:00:00 2001
From: Tony Duckles <tony@nynim.org>
Date: Tue, 29 Jan 2013 22:03:16 -0600
Subject: [PATCH] bin/colortable: Rewrite in bash, columns for background
 colors

---
 bin/colortable | 79 ++++++++++++++++++++++++++++++--------------------
 1 file changed, 47 insertions(+), 32 deletions(-)

diff --git a/bin/colortable b/bin/colortable
index 1c7c453..718ef1e 100755
--- a/bin/colortable
+++ b/bin/colortable
@@ -1,35 +1,50 @@
-#!/usr/bin/perl
+#!/bin/bash
 # Usage: colortable
-# Print a color table of ANSI colors (normal+bright)
+#
+# Print a color table of ANSI colors (normal+bright) to demonstrate what
+# colors are available. Each line is the color code of one foreground
+# color, out of 17 (default + 16 escapes), followed by a test use of that
+# color on all nine background colors (default + 8 escapes).
+#
+# (Based on: http://www.faqs.org/docs/Linux-HOWTO/Bash-Prompt-HOWTO.html)
 
-sub printrow {
-	$bg = $_[0];
-	for ($bright = 0; $bright < 2; $bright++) {
-		# Normal background
-		$bgc = $bg;
-		printf("\x1b[0m %2s ",$bgc);
-		for ($fg=30; $fg<=37; $fg++) {
-			$fgc = $bright == 1 ? ($fg+60) : $fg;
-			printf("\x1b[%sm\x1b[%sm %2s ", $bgc, $fgc, $fgc);
-		}
-		if ($bg > 0) {
-			# Bright background
-			$bgc = $bg+60;
-			printf("\x1b[0m    %3s ",$bgc);
-			for ($fg=30; $fg<=37; $fg++) {
-				$fgc = $bright == 1 ? ($fg+60) : $fg;
-				printf("\x1b[%sm\x1b[%sm %2s ", $bgc, $fgc, $fgc);
-			}
-		}
-		printf("\x1b[0m\n");
-	}
-}
+T='gYw'   # The test text
 
-# No background
-for ($bg=0; $bg<=0; $bg++) {
-	printrow $bg;
-}
-# Background 40-47 (standard)
-for ($bg=40; $bg<48; $bg++) {
-	printrow $bg;
-}
+# Standard background colors
+echo -e "\n                 40m     41m     42m     43m     44m     45m     46m     47m";
+for FGs in  '    m' '   1m' \
+            '  30m' '  90m' '1;30m' \
+            '  31m' '  91m' '1;31m' \
+            '  32m' '  92m' '1;32m' \
+            '  33m' '  93m' '1;33m' \
+            '  34m' '  94m' '1;34m' \
+            '  35m' '  95m' '1;35m' \
+            '  36m' '  96m' '1;36m' \
+            '  37m' '  97m' '1;37m'; do
+  FG=${FGs// /}
+  echo -en " $FGs \033[$FG  $T  \033[0m"
+  for BG in 40m 41m 42m 43m 44m 45m 46m 47m; do
+    echo -en " \033[$FG\033[$BG  $T  \033[0m";
+  done
+  echo;
+done
+
+# Bright background colors
+echo -e "\n                 100m    101m    102m    103m    104m    105m    106m    107m";
+for FGs in  '    m' '   1m' \
+            '  30m' '  90m' '1;30m' \
+            '  31m' '  91m' '1;31m' \
+            '  32m' '  92m' '1;32m' \
+            '  33m' '  93m' '1;33m' \
+            '  34m' '  94m' '1;34m' \
+            '  35m' '  95m' '1;35m' \
+            '  36m' '  96m' '1;36m' \
+            '  37m' '  97m' '1;37m'; do
+  FG=${FGs// /}
+  echo -en " $FGs \033[$FG  $T  \033[0m"
+  for BG in 100m 101m 102m 103m 104m 105m 106m 107m; do
+    echo -en " \033[$FG\033[$BG  $T  \033[0m";
+  done
+  echo;
+done
+echo
-- 
2.43.0