Julia busy indicator with ADCII dots

julia_busy_dots.jl

###############################################################################
# File:   julia_busy_dots.jl
# Author: Alex Hogen (@ahogen on Github)
#
# Print a little busy/waiting indicator to the screen. 
#
# Start:
#     $ julia julia_busy_dots.jl
# Stop:
#     $ Ctrl+C
###############################################################################
step = 1
delay = 0.1

dot_spinner = ["[     ]"
               "[•    ]"
               "[••   ]"
               "[ ••  ]"
               "[  •• ]"
               "[   ••]"
               "[    •]"]
while true
    for step in dot_spinner
        flush(STDOUT)
        print("\r")
        print(step)
        flush(STDOUT)
        sleep(delay)
    end
end

Should turn off cursor before and after the spinner. Should also look for q character from user to quit "nicely" and restore cursor blink.