quick script for wedding list CSV to IDTT for layout

addr2idtt.rb

require 'csv'
require 'erb'

class Address
  def initialize(row)
    @row = row
  end

  def name
    text(@row[0])
  end

  def house
    text(@row[1])
  end

  def apartment
    @row[2] ? text(@row[2]) : nil
  end

  def city
    text(@row[3] + ', ' + @row[4] + ' ' + @row[5])
  end

  def text(str)
    return str if str.ascii_only?
    str.split(/([^[[:ascii:]]])/).map do |chunk|
      if chunk.ascii_only?
        chunk
      else
        codepoint = chunk.codepoints[0]
        "<0x#{sprintf('%04x', codepoint).upcase}>"
      end
    end.join
  end
end

class Addr2IDTT
  IDTT_HEAD = <<-IDTT
<ASCII-MAC>
<DefineParaStyle:name=>
<DefineParaStyle:house=>
<DefineParaStyle:apt=>
<DefineParaStyle:city=>
<DefineParaStyle:break=>
IDTT

IDTT_ADDRESS = ERB.new <<-IDTT
<ParaStyle:name><%= address.name %>
<ParaStyle:house><%= address.house %><% if address.apartment %>
<ParaStyle:apt><%= address.apartment %><% end %>
<ParaStyle:city><%= address.city %>
<ParaStyle:break>@
IDTT

  def initialize(txt)
    @txt = txt
    @idtt = IDTT_HEAD.dup
  end

  def run
    CSV.parse(@txt) do |row|
      address = Address.new(row)
      @idtt << IDTT_ADDRESS.result(binding)
    end
    @idtt
  end
end

a2i = Addr2IDTT.new(File.read(ARGV[0]))
File.open(ARGV[1], 'w') do |f|
  f.write a2i.run
end