20. Web Automation

def templatefile(filename, fillings)
    aFile = File.new(filename, "r")
    text = aFile.read()
    aFile.close()
    pattern = Regexp.new('%%(.*?)%%')
    text.gsub!(pattern) {
        fillings[$1] || ""
    }
    text
end

fields = {
    'username' => whats_his_name,
    'count' => login_count,
    'total' => minutes_used
}
puts templatefile('simple.template', fields)

# @@INCOMPLETE@@
# An example using databases is missing