gistfile1.sh

ps1_status() {
 if [ $? -ne 0 ]; then
   echo ":("
 else
   echo ":)"
 fi
}

function configure_prompt() {
	local PS_RESET="\[\e[00m\]"
	local PS_GREEN="\[\e[01;32m\]"
	local PS_BLUE="\[\e[01;34m\]"
	local PS_PURPLE="\[\e[01;35m\]"
	
	# No \[ \] - makes it too hard to verify the pairing to put them here.
	# See TITLEBAR below.
	local PS_TITLE_START="\e]0;"
	local PS_TITLE_END="\a"
	
	case $TERM in
	    xterm*|rxvt)
	        local TITLEBAR="\[$PS_TITLE_START\u@\h:\W$PS_TITLE_END\]"
	        ;;
	    *)
	        local TITLEBAR=''
	        ;;
	esac

	local IDENT="$PS_GREEN\u@\h$PS_RESET"
	local CWD="$PS_BLUE\W$PS_RESET"
	local SMILEY="$PS_PURPLE"'$(ps1_status)'"$PS_RESET"
	local PROMPT="$SMILEY$IDENT:$CWD\$ "

	export PS1="$TITLEBAR$PROMPT"
}
configure_prompt