Properly handle terminals which do not have 256 colors.

rc_shared.sh

@@ -9,6 +9,8 @@ export PATH="$PATH:~/bin-shared:~/.bin-shared"
 
 # PS1 Colors #
 
+colors=`tput colors`
+if (( colors >= 256 )); then
 	export PURPLE="`tput setaf 55`"
 	export ORANGE="`tput setaf 208`"
 	export GREEN="`tput setaf 34`"
@@ -18,6 +20,28 @@ export SCARLET="`tput setaf 160`"
 	export YELLOW="`tput setaf 226`"
 
 	export GRAY="`tput setaf 243`"
+elif (( colors == 16 )); then
+	export PURPLE="`tput setaf 13`"
+	export ORANGE="`tput setaf 11`"
+	export GREEN="`tput setaf 02`"
+
+	export RED="`tput setaf 09`"
+	export SCARLET="`tput setaf 01`"
+	export YELLOW="`tput setaf 11`"
+
+	export GRAY="`tput setaf 08`"
+else
+	export PURPLE="`tput setaf 05`"
+	export ORANGE="`tput setaf 03`"
+	export GREEN="`tput setaf 02`"
+
+	export RED="`tput setaf 05`"
+	export SCARLET="`tput setaf 01`"
+	export YELLOW="`tput setaf 03`"
+
+	export GRAY="`tput setaf 07`"
+fi
+
 
 export RESET="`tput sgr0`"
 export BOLD="`tput bold`"
@@ -862,8 +886,10 @@ function git-check {
 # TBD: Move this to a different section?
 function check-colors {
 	min=0
-	max=255
+	max=256
 	unset i
+	echo "Current terminal supports '`tput colors`' colors."
+	echo "Displaying examples..."
 	for (( i = min; i <= max; i++ )); do
 		tput setaf $i
 		printf "%03d" "$i"