#!/bin/bash

# Dynamic Bash Prompt - by Jared Warren
#
# Time changed to US population by dual
#
# Usage: Save as ~/.ps1, then
#	 echo 'source ~/.ps1' >> ~/.bashrc
##########################################


# Get US population data
function us_pop {
	lynx -dump http://www.census.gov/main/.in/usclocknumber.inc | \
	perl -nle 'print $1 if /(\d{3},\d{3},\d{3})/'
}


# Display population in the upper right-hand corner
function display_clock {
	LIGHT_BLUE="$(tput setaf 4; tput bold)"
	DEFAULT="$(tput sgr0)"

	CLOCK="[$LIGHT_BLUE$(us_pop)$DEFAULT]"

	# <columns in display> - len($CLOCK)
	let UPPER_RIGHT=$(tput cols)-13

	tput sc
	tput cup 0 ${UPPER_RIGHT}
	echo -n ${CLOCK}
	tput rc
}


# Run before each prompt display
function prompt_command {
	display_clock
}


# Display prompt
function ps1 {
	PROMPT_COMMAND=prompt_command
}

ps1