simobil billing specification parser

simobil.rb

require 'rubygems'
require 'hpricot'
require 'pp'

source = open('spec.xml')
doc = Hpricot(source)

ppl = Hash.new { |h,k| h[k] = { :call => 0.0, :sms => 0.0, :other => 0.0, :sum => 0.0 } }

doc.search(:zapis).each do |entry|
    
  phone = entry.at(:stevilka).inner_html
  price = entry.at(:eur).inner_html.to_f
  type  = case entry.at(:opis).inner_html
          when /sms/i
            :sms
          when /znotraj/i, /klic/i
            :call
          else
            :other
          end

  next if phone == "INTERNET.SIMOBIL.SI"
  
  ppl[phone][type] += price
  ppl[phone][:sum] += price
end

ppl.sort_by { |pair| -pair.last[:call] }.each_with_index do |data, i|
  puts "#{"%2d" % (i+1)}: #{"%11s" % data.first} (#{data.last[:sum]}) #{data.last.inspect}"
end