class RDoc::Generator::POT::PO

def add entry
  existing_entry = @entries[entry.msgid]
  if existing_entry
    entry = existing_entry.merge(entry)
  end
  @entries[entry.msgid] = entry
end

def add_header
  add(header_entry)
end

def header_entry
  comment = <<-COMMENT
ME DESCRIPTIVE TITLE.
pyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
is file is distributed under the same license as the PACKAGE package.
RST AUTHOR <EMAIL@ADDRESS>, YEAR.
  COMMENT
  content = <<-CONTENT
oject-Id-Version: PACKAGE VERSEION
port-Msgid-Bugs-To:
-Revision-Date: YEAR-MO_DA HO:MI+ZONE
st-Translator: FULL NAME <EMAIL@ADDRESS>
nguage-Team: LANGUAGE <LL@li.org>
nguage:
ME-Version: 1.0
ntent-Type: text/plain; charset=CHARSET
ntent-Transfer-Encoding: 8bit
ural-Forms: nplurals=INTEGER; plural=EXPRESSION;
  CONTENT
  options = {
    :msgstr => content,
    :translator_comment => comment,
    :flags => ['fuzzy'],
  }
  RDoc::Generator::POT::POEntry.new('', options)
end

def initialize
  @entries = {}
  add_header
end

def sort_entries
  headers, messages = @entries.values.partition do |entry|
    entry.msgid.empty?
  end
  # TODO: sort by location
  sorted_messages = messages.sort_by do |entry|
    entry.msgid
  end
  headers + sorted_messages
end

def to_s
  po = ''
  sort_entries.each do |entry|
    po << "\n" unless po.empty?
    po << entry.to_s
  end
  po
end