class ConfigParser

# File lib/elasticDynamoDb/configparser.rb, line 2
def initialize(fname = nil)
  @file_name = fname
end

# File lib/elasticDynamoDb/configparser.rb, line 6
def parse
  begin
    input_source = File.open(@file_name, "r").each_line if @file_name
  rescue Exception => e
    puts "\e[31mError loading file: #{e}\e[0m\n\n"
    exit 1
  end
  config = {}
  config_section = nil

  input_source.each_with_index.inject(config) {|acc, (line, index)|
    if line =~ /^\[(.+?)\]/
      config_section = $1
      acc[config_section] ||= {}
    elsif line =~ /^(#|;|\n)/ && config_section  
        acc[config_section]["comment_#{index}"] = line
    elsif line =~ /^\s*(.+?)\s*[=:]\s*(.+)$/ && config_section # this returns a 2 parts $1 key, $2 value
        config_key   = $1
        config_value = $2
        acc[config_section][config_key] = config_value
    else
        acc['pre_section'] ||= {}
        acc['pre_section']["comment_#{index}"] = line
    end
    acc
  }
end