1 files changed, 140 insertions, 0 deletions
diff --git a/jni/ruby/lib/rdoc/generator/pot/po_entry.rb b/jni/ruby/lib/rdoc/generator/pot/po_entry.rb
new file mode 100644
index 0000000..d4cef59
--- /dev/null
+++ b/jni/ruby/lib/rdoc/generator/pot/po_entry.rb
@@ -0,0 +1,140 @@
+##
+# A PO entry in PO
+
+class RDoc::Generator::POT::POEntry
+
+  # The msgid content
+  attr_reader :msgid
+
+  # The msgstr content
+  attr_reader :msgstr
+
+  # The comment content created by translator (PO editor)
+  attr_reader :translator_comment
+
+  # The comment content extracted from source file
+  attr_reader :extracted_comment
+
+  # The locations where the PO entry is extracted
+  attr_reader :references
+
+  # The flags of the PO entry
+  attr_reader :flags
+
+  ##
+  # Creates a PO entry for +msgid+. Other valus can be specified by
+  # +options+.
+
+  def initialize msgid, options = {}
+    @msgid = msgid
+    @msgstr = options[:msgstr] || ""
+    @translator_comment = options[:translator_comment]
+    @extracted_comment = options[:extracted_comment]
+    @references = options[:references] || []
+    @flags = options[:flags] || []
+  end
+
+  ##
+  # Returns the PO entry in PO format.
+
+  def to_s
+    entry = ''
+    entry << format_translator_comment
+    entry << format_extracted_comment
+    entry << format_references
+    entry << format_flags
+    entry << <<-ENTRY
+msgid #{format_message(@msgid)}
+msgstr #{format_message(@msgstr)}
+    ENTRY
+  end
+
+  ##
+  # Merges the PO entry with +other_entry+.
+
+  def merge other_entry
+    options = {
+      :extracted_comment  => merge_string(@extracted_comment,
+                                          other_entry.extracted_comment),
+      :translator_comment => merge_string(@translator_comment,
+                                          other_entry.translator_comment),
+      :references         => merge_array(@references,
+                                         other_entry.references),
+      :flags              => merge_array(@flags,
+                                         other_entry.flags),
+    }
+    self.class.new(@msgid, options)
+  end
+
+  private
+
+  def format_comment mark, comment
+    return '' unless comment
+    return '' if comment.empty?
+
+    formatted_comment = ''
+    comment.each_line do |line|
+      formatted_comment << "#{mark} #{line}"
+    end
+    formatted_comment << "\n" unless formatted_comment.end_with?("\n")
+    formatted_comment
+  end
+
+  def format_translator_comment
+    format_comment('#', @translator_comment)
+  end
+
+  def format_extracted_comment
+    format_comment('#.', @extracted_comment)
+  end
+
+  def format_references
+    return '' if @references.empty?
+
+    formatted_references = ''
+    @references.sort.each do |file, line|
+      formatted_references << "\#: #{file}:#{line}\n"
+    end
+    formatted_references
+  end
+
+  def format_flags
+    return '' if @flags.empty?
+
+    formatted_flags = flags.join(",")
+    "\#, #{formatted_flags}\n"
+  end
+
+  def format_message message
+    return "\"#{escape(message)}\"" unless message.include?("\n")
+
+    formatted_message = '""'
+    message.each_line do |line|
+      formatted_message << "\n"
+      formatted_message << "\"#{escape(line)}\""
+    end
+    formatted_message
+  end
+
+  def escape string
+    string.gsub(/["\\\t\n]/) do |special_character|
+      case special_character
+      when "\t"
+        "\\t"
+      when "\n"
+        "\\n"
+      else
+        "\\#{special_character}"
+      end
+    end
+  end
+
+  def merge_string string1, string2
+    [string1, string2].compact.join("\n")
+  end
+
+  def merge_array array1, array2
+      (array1 + array2).uniq
+  end
+
+end