Finished modularizing apple formatter.

lib/twine/formatters/apple.rb

@@ -86,10 +86,46 @@ module Twine
         text.gsub('"', '\\\\"')
       end
 
+      def format_file(lang, default_lang)
+        result = format_header(lang) + "\n"
+          
+        sections = @strings.sections.map { |section| format_section(section, lang, default_lang) }
+        result += sections.join("\n")
+      end
+
       def format_header(lang)
         "/**\n * Apple Strings File\n * Generated by Twine #{Twine::VERSION}\n * Language: #{lang}\n */"
       end
 
+      def format_section_header(section)
+        "/********** #{section.name} **********/" if section.name && section.name.length > 0
+      end
+
+      def format_section(section, lang, default_lang)
+        rows = section.rows.select { |row| row.matches_tags?(@options[:tags], @options[:untagged]) }
+
+        result = ""
+        unless rows.empty?
+          section_header = format_section_header(section)
+          result += "\n#{section_header}\n" if section_header
+        end
+
+        rows.map! { |row| format_row(row, lang, default_lang) }
+        rows.compact! # remove nil entries
+        rows.map! { |row| "\n#{row}\n" }  # wrap with newlines
+        result += rows.join
+      end
+
+      def format_row(row, lang, default_lang)
+        value = row.translated_string_for_lang(lang, default_lang)
+        return nil unless value
+
+        result = ""
+        result += format_comment(row.comment) + "\n" if row.comment
+
+        result +=  "\"#{format_key(row.key)}\" = \"#{format_value(value)}\";"
+      end
+
       def format_comment(comment)
         "/* #{comment.gsub('*/', '* /')} */"
       end
@@ -102,43 +138,12 @@ module Twine
         escape_quotes(value)
       end
 
-      def format_row(row, lang, default_lang)
-        value = row.translated_string_for_lang(lang, default_lang)
-        return nil unless value
-
-        result = ""
-        result += format_comment(row.comment) + "\n" if row.comment
-
-        result +=  "\"#{format_key(row.key)}\" = \"#{format_value(value)}\";\n"
-      end
-
       def write_file(path, lang)
         default_lang = @strings.language_codes[0]
         encoding = @options[:output_encoding] || 'UTF-8'
 
         File.open(path, "w:#{encoding}") do |f|
-          f.puts format_header(lang)
-          
-          @strings.sections.each do |section|
-            rows = section.rows.select { |row| row.matches_tags?(@options[:tags], @options[:untagged]) }
-
-            unless rows.empty?
-              f.puts ''
-              if section.name && section.name.length > 0
-                f.puts "/********** #{section.name} **********/"
-              end
-            end
-
-            rows.each do |row|
-                f.puts ''
-
-                formatted_row = format_row(row, lang, default_lang)
-
-                f.puts formatted_row if formatted_row
-            end
-
-          end
-
+          f.puts format_file(lang, default_lang)
         end
 
       end