added function color() to... well color stuff

demo.sh

@@ -5,6 +5,7 @@
 #     execute():   simuates typing then executing its arguments in a shell
 #     wait():      waits for user input with optional timeout
 #     cmd():       gives control to user until she enters 'end' (or for a single command if you pass an argument).
+#     color():     allows you to color (second argument, defaults to $clr) some text (first argument)
 #
 # Helpers (internal stuff):
 #     simtyping(): let's data piped to it through at rates similar to typing
@@ -13,6 +14,21 @@
 TYPE_SPEED="${TYPE_SPEED:-15}"
 PROMPT_TIMEOUT="${PROMPT_TIMEOUT:--1}"
 
+# some colors
+def="\033[0;00m"
+wht="\033[1;37m"
+red="\033[0;31m"
+grn="\033[0;32m"
+blu="\033[0;34m"
+
+clr="$wht"
+function color()
+{
+    printf "${2:-$clr}"
+    printf "${1}"
+    printf "${def}"
+}
+
 function simtyping()
 { pv -qL $(($TYPE_SPEED+$((-2 + RANDOM%5)))); }