* {ext,lib,test}/**/*.rb: removed trailing spaces.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22784 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

24 files changed, 189 insertions, 189 deletions

diff --git a/lib/rss/0.9.rb b/lib/rss/0.9.rb
index 7b24e7596d..37dc7af94e 100644
--- a/lib/rss/0.9.rb
+++ b/lib/rss/0.9.rb
@@ -8,7 +8,7 @@ module RSS
 
     def self.append_features(klass)
       super
-      
+
       klass.install_must_call_validator('', "")
     end
   end
@@ -123,7 +123,7 @@ module RSS
       def not_need_to_call_setup_maker_variables
         %w(image textInput)
       end
-    
+
       class SkipDays < Element
         include RSS09
 
@@ -146,11 +146,11 @@ module RSS
               self.content = args[0]
             end
           end
-      
+
         end
-        
+
       end
-      
+
       class SkipHours < Element
         include RSS09
 
@@ -174,13 +174,13 @@ module RSS
             end
           end
         end
-        
+
       end
-      
+
       class Image < Element
 
         include RSS09
-        
+
         %w(url title link).each do |name|
           install_text_element(name, "", nil)
         end
@@ -239,9 +239,9 @@ module RSS
           end
         end
       end
-      
+
       class Item < Element
-        
+
         include RSS09
 
         [
@@ -269,7 +269,7 @@ module RSS
           @enclosure.setup_maker(item) if @enclosure
           @source.setup_maker(item) if @source
         end
-        
+
         class Source < Element
 
           include RSS09
@@ -279,7 +279,7 @@ module RSS
           ].each do |name, uri, required|
             install_get_attribute(name, uri, required)
           end
-          
+
           content_setup
 
           def initialize(*args)
@@ -341,7 +341,7 @@ module RSS
         class Category < Element
 
           include RSS09
-          
+
           [
             ["domain", "", false]
           ].each do |name, uri, required|
@@ -369,11 +369,11 @@ module RSS
             category.domain = domain
             category.content = content
           end
-          
+
         end
 
       end
-      
+
       class TextInput < Element
 
         include RSS09
@@ -399,9 +399,9 @@ module RSS
           maker.textinput
         end
       end
-      
+
     end
-    
+
   end
 
   RSS09::ELEMENTS.each do |name|
@@ -412,7 +412,7 @@ module RSS
     private
     def initial_start_rss(tag_name, prefix, attrs, ns)
       check_ns(tag_name, prefix, ns, "")
-      
+
       @rss = Rss.new(attrs['version'], @version, @encoding, @standalone)
       @rss.do_validate = @do_validate
       @rss.xml_stylesheets = @xml_stylesheets
@@ -422,7 +422,7 @@ module RSS
       end
       @proc_stack.push(pr)
     end
-    
+
   end
 
 end
diff --git a/lib/rss/1.0.rb b/lib/rss/1.0.rb
index f04e61c5eb..f2f89739b6 100644
--- a/lib/rss/1.0.rb
+++ b/lib/rss/1.0.rb
@@ -8,7 +8,7 @@ module RSS
 
     def self.append_features(klass)
       super
-      
+
       klass.install_must_call_validator('', ::RSS::URI)
     end
 
@@ -64,13 +64,13 @@ module RSS
           URI
         end
       end
-      
+
       [
         ["resource", [URI, ""], true]
       ].each do |name, uri, required|
         install_get_attribute(name, uri, required)
       end
-      
+
       def initialize(*args)
         if Utils.element_initialize_arguments?(args)
           super
@@ -98,10 +98,10 @@ module RSS
       end
 
       @tag_name = 'Seq'
-      
+
       install_have_children_element("li", URI, "*")
       install_must_call_validator('rdf', ::RSS::RDF::URI)
-      
+
       def initialize(*args)
         if Utils.element_initialize_arguments?(args)
           super
@@ -114,7 +114,7 @@ module RSS
       def full_name
         tag_name_with_prefix(PREFIX)
       end
-      
+
       def setup_maker(target)
         lis.each do |li|
           target << li.resource
@@ -135,10 +135,10 @@ module RSS
       end
 
       @tag_name = 'Bag'
-      
+
       install_have_children_element("li", URI, "*")
       install_must_call_validator('rdf', URI)
-      
+
       def initialize(*args)
         if Utils.element_initialize_arguments?(args)
           super
@@ -151,7 +151,7 @@ module RSS
       def full_name
         tag_name_with_prefix(PREFIX)
       end
-      
+
       def setup_maker(target)
         lis.each do |li|
           target << li.resource
@@ -162,7 +162,7 @@ module RSS
     class Channel < Element
 
       include RSS10
-      
+
       class << self
 
         def required_uri
@@ -202,17 +202,17 @@ module RSS
       def maker_target(maker)
         maker.channel
       end
-      
+
       def setup_maker_attributes(channel)
         channel.about = about
       end
 
       class Image < Element
-        
+
         include RSS10
 
         class << self
-          
+
           def required_uri
             ::RSS::URI
           end
@@ -225,7 +225,7 @@ module RSS
           install_get_attribute(name, uri, required, nil, nil,
                                 "#{PREFIX}:#{name}")
         end
-      
+
         def initialize(*args)
           if Utils.element_initialize_arguments?(args)
             super
@@ -237,11 +237,11 @@ module RSS
       end
 
       class Textinput < Element
-        
+
         include RSS10
 
         class << self
-          
+
           def required_uri
             ::RSS::URI
           end
@@ -254,7 +254,7 @@ module RSS
           install_get_attribute(name, uri, required, nil, nil,
                                 "#{PREFIX}:#{name}")
         end
-      
+
         def initialize(*args)
           if Utils.element_initialize_arguments?(args)
             super
@@ -264,7 +264,7 @@ module RSS
           end
         end
       end
-      
+
       class Items < Element
 
         include RSS10
@@ -272,16 +272,16 @@ module RSS
         Seq = ::RSS::RDF::Seq
 
         class << self
-          
+
           def required_uri
             ::RSS::URI
           end
-          
+
         end
 
         install_have_child_element("Seq", URI, nil)
         install_must_call_validator('rdf', URI)
-        
+
         def initialize(*args)
           if Utils.element_initialize_arguments?(args)
             super
@@ -309,7 +309,7 @@ module RSS
       include RSS10
 
       class << self
-        
+
         def required_uri
           ::RSS::URI
         end
@@ -351,7 +351,7 @@ module RSS
         def required_uri
           ::RSS::URI
         end
-        
+
       end
 
 
diff --git a/lib/rss/2.0.rb b/lib/rss/2.0.rb
index 3798da4eb7..9622c598d9 100644
--- a/lib/rss/2.0.rb
+++ b/lib/rss/2.0.rb
@@ -29,7 +29,7 @@ module RSS
       Category = Item::Category
 
       class Item
-      
+
         [
           ["comments", "?"],
           ["author", "?"],
@@ -57,9 +57,9 @@ module RSS
           _setup_maker_element(item)
           @guid.setup_maker(item) if @guid
         end
-        
+
         class Guid < Element
-          
+
           include RSS09
 
           [
diff --git a/lib/rss/converter.rb b/lib/rss/converter.rb
index 745d6de965..3e79eba4fb 100644
--- a/lib/rss/converter.rb
+++ b/lib/rss/converter.rb
@@ -3,7 +3,7 @@ require "rss/utils"
 module RSS
 
   class Converter
-    
+
     include Utils
 
     def initialize(to_enc, from_enc=nil)
@@ -63,11 +63,11 @@ module RSS
         raise UnknownConversionMethodError.new(to_enc, from_enc)
       end
     end
-    
+
     def def_else_enc(to_enc, from_enc)
       def_iconv_convert(to_enc, from_enc, 0)
     end
-    
+
     def def_same_enc()
       def_convert do |value|
         value
@@ -101,40 +101,40 @@ module RSS
     def def_to_euc_jp_from_utf_8
       def_uconv_convert_if_can('u8toeuc', 'EUC-JP', 'UTF-8', '-We')
     end
-    
+
     def def_to_utf_8_from_euc_jp
       def_uconv_convert_if_can('euctou8', 'UTF-8', 'EUC-JP', '-Ew')
     end
-    
+
     def def_to_shift_jis_from_utf_8
       def_uconv_convert_if_can('u8tosjis', 'Shift_JIS', 'UTF-8', '-Ws')
     end
-    
+
     def def_to_utf_8_from_shift_jis
       def_uconv_convert_if_can('sjistou8', 'UTF-8', 'Shift_JIS', '-Sw')
     end
-    
+
     def def_to_euc_jp_from_shift_jis
       require "nkf"
       def_convert do |value|
         "NKF.nkf('-Se', #{value})"
       end
     end
-    
+
     def def_to_shift_jis_from_euc_jp
       require "nkf"
       def_convert do |value|
         "NKF.nkf('-Es', #{value})"
       end
     end
-    
+
     def def_to_euc_jp_from_iso_2022_jp
       require "nkf"
       def_convert do |value|
         "NKF.nkf('-Je', #{value})"
       end
     end
-    
+
     def def_to_iso_2022_jp_from_euc_jp
       require "nkf"
       def_convert do |value|
@@ -147,7 +147,7 @@ module RSS
         "#{value}.unpack('C*').pack('U*')"
       end
     end
-    
+
     def def_to_iso_8859_1_from_utf_8
       def_convert do |value|
         <<-EOC
@@ -164,7 +164,7 @@ module RSS
         EOC
       end
     end
-    
+
   end
-  
+
 end
diff --git a/lib/rss/dublincore.rb b/lib/rss/dublincore.rb
index 7ba239f8f1..53a4ca70d6 100644
--- a/lib/rss/dublincore.rb
+++ b/lib/rss/dublincore.rb
@@ -25,7 +25,7 @@ module RSS
           def #{full_name}
             @#{full_name}.first and @#{full_name}.first.value
           end
-          
+
           def #{full_name}=(new_value)
             @#{full_name}[0] = Utils.new_with_value_if_need(#{klass_name}, new_value)
           end
@@ -50,7 +50,7 @@ module RSS
       EOC
     end
   end
-  
+
   module DublinCoreModel
 
     extend BaseModel
@@ -76,26 +76,26 @@ module RSS
     DATE_ELEMENTS = {
       "date" => "w3cdtf",
     }
-    
+
     ELEMENT_NAME_INFOS = DublinCoreModel::TEXT_ELEMENTS.to_a
     DublinCoreModel::DATE_ELEMENTS.each do |name, |
       ELEMENT_NAME_INFOS << [name, nil]
     end
-    
+
     ELEMENTS = TEXT_ELEMENTS.keys + DATE_ELEMENTS.keys
 
     ELEMENTS.each do |name, plural_name|
       module_eval(<<-EOC, *get_file_and_line_from_caller(0))
         class DublinCore#{Utils.to_class_name(name)} < Element
           include RSS10
-          
+
           content_setup
 
           class << self
             def required_prefix
               DC_PREFIX
             end
-        
+
             def required_uri
               DC_URI
             end
@@ -105,7 +105,7 @@ module RSS
 
           alias_method(:value, :content)
           alias_method(:value=, :content=)
-          
+
           def initialize(*args)
             if Utils.element_initialize_arguments?(args)
               super
@@ -114,7 +114,7 @@ module RSS
               self.content = args[0]
             end
           end
-      
+
           def full_name
             tag_name_with_prefix(DC_PREFIX)
           end
diff --git a/lib/rss/image.rb b/lib/rss/image.rb
index c4714aea12..e79e9f5e65 100644
--- a/lib/rss/image.rb
+++ b/lib/rss/image.rb
@@ -15,7 +15,7 @@ module RSS
     BaseListener.install_class_name(IMAGE_URI, name, "Image#{class_name}")
     IMAGE_ELEMENTS << "#{IMAGE_PREFIX}_#{name}"
   end
-  
+
   module ImageModelUtils
     def validate_one_tag_name(ignore_unknown_element, name, tags)
       if !ignore_unknown_element
@@ -25,7 +25,7 @@ module RSS
       raise TooMuchTagError.new(name, tag_name) if tags.size > 1
     end
   end
-  
+
   module ImageItemModel
     include ImageModelUtils
     extend BaseModel
@@ -43,12 +43,12 @@ module RSS
       include DublinCoreModel
 
       @tag_name = "item"
-      
+
       class << self
         def required_prefix
           IMAGE_PREFIX
         end
-        
+
         def required_uri
           IMAGE_URI
         end
@@ -102,11 +102,11 @@ module RSS
       end
     end
   end
-  
+
   module ImageFaviconModel
     include ImageModelUtils
     extend BaseModel
-    
+
     def self.append_features(klass)
       super
 
@@ -122,12 +122,12 @@ module RSS
       include DublinCoreModel
 
       @tag_name = "favicon"
-      
+
       class << self
         def required_prefix
           IMAGE_PREFIX
         end
-        
+
         def required_uri
           IMAGE_URI
         end
@@ -154,7 +154,7 @@ module RSS
         end
         set_size(new_value)
       end
-      
+
       alias image_size= size=
       alias image_size size
 
diff --git a/lib/rss/maker/0.9.rb b/lib/rss/maker/0.9.rb
index cc7db8c638..ed992028cf 100644
--- a/lib/rss/maker/0.9.rb
+++ b/lib/rss/maker/0.9.rb
@@ -4,14 +4,14 @@ require "rss/maker/base"
 
 module RSS
   module Maker
-    
+
     class RSS09 < RSSBase
-      
+
       def initialize(feed_version)
         super
         @feed_type = "rss"
       end
-      
+
       private
       def make_feed
         Rss.new(@feed_version, @version, @encoding, @standalone)
@@ -38,20 +38,20 @@ module RSS
             raise NotSetError.new("maker.channel", _not_set_required_variables)
           end
         end
-        
+
         private
         def setup_items(rss)
           @maker.items.to_feed(rss)
         end
-        
+
         def setup_image(rss)
           @maker.image.to_feed(rss)
         end
-        
+
         def setup_textinput(rss)
           @maker.textinput.to_feed(rss)
         end
-        
+
         def variables
           super + ["pubDate"]
         end
@@ -78,7 +78,7 @@ module RSS
               end
             end
           end
-          
+
           class Day < DayBase
             def to_feed(rss, days)
               day = Rss::Channel::SkipDays::Day.new
@@ -96,7 +96,7 @@ module RSS
             end
           end
         end
-        
+
         class SkipHours < SkipHoursBase
           def to_feed(rss, channel)
             unless @hours.empty?
@@ -108,7 +108,7 @@ module RSS
               end
             end
           end
-          
+
           class Hour < HourBase
             def to_feed(rss, hours)
               hour = Rss::Channel::SkipHours::Hour.new
@@ -126,7 +126,7 @@ module RSS
             end
           end
         end
-        
+
         class Cloud < CloudBase
           def to_feed(*args)
           end
@@ -243,7 +243,7 @@ module RSS
           true
         end
       end
-      
+
       class Items < ItemsBase
         def to_feed(rss)
           if rss.channel
@@ -253,7 +253,7 @@ module RSS
             setup_other_elements(rss, rss.items)
           end
         end
-        
+
         class Item < ItemBase
           def to_feed(rss)
             item = Rss::Channel::Item.new
@@ -439,7 +439,7 @@ module RSS
           end
         end
       end
-      
+
       class Textinput < TextinputBase
         def to_feed(rss)
           textInput = Rss::Channel::TextInput.new
diff --git a/lib/rss/maker/1.0.rb b/lib/rss/maker/1.0.rb
index a1e2594f70..676f662915 100644
--- a/lib/rss/maker/1.0.rb
+++ b/lib/rss/maker/1.0.rb
@@ -60,7 +60,7 @@ module RSS
           rss.channel.items = items
           set_parent(rss.channel, items)
         end
-        
+
         def setup_image(rss)
           if @maker.image.have_required_values?
             image = RDF::Channel::Image.new(@maker.image.url)
@@ -91,11 +91,11 @@ module RSS
         class SkipDays < SkipDaysBase
           def to_feed(*args)
           end
-          
+
           class Day < DayBase
           end
         end
-        
+
         class SkipHours < SkipHoursBase
           def to_feed(*args)
           end
@@ -103,7 +103,7 @@ module RSS
           class Hour < HourBase
           end
         end
-        
+
         class Cloud < CloudBase
           def to_feed(*args)
           end
@@ -403,7 +403,7 @@ module RSS
           end
         end
       end
-      
+
       class Textinput < TextinputBase
         def to_feed(rss)
           if @link
diff --git a/lib/rss/maker/2.0.rb b/lib/rss/maker/2.0.rb
index 67d68126ac..15b1349c2a 100644
--- a/lib/rss/maker/2.0.rb
+++ b/lib/rss/maker/2.0.rb
@@ -4,9 +4,9 @@ require "rss/maker/0.9"
 
 module RSS
   module Maker
-    
+
     class RSS20 < RSS09
-      
+
       def initialize(feed_version="2.0")
         super
       end
@@ -17,17 +17,17 @@ module RSS
         def required_variable_names
           %w(link)
         end
-        
+
         class SkipDays < RSS09::Channel::SkipDays
           class Day < RSS09::Channel::SkipDays::Day
           end
         end
-        
+
         class SkipHours < RSS09::Channel::SkipHours
           class Hour < RSS09::Channel::SkipHours::Hour
           end
         end
-        
+
         class Cloud < RSS09::Channel::Cloud
           def to_feed(rss, channel)
             cloud = Rss::Channel::Cloud.new
@@ -51,7 +51,7 @@ module RSS
               category.to_feed(rss, channel)
             end
           end
-          
+
           class Category < RSS09::Channel::Categories::Category
             def to_feed(rss, channel)
               category = Rss::Channel::Category.new
@@ -81,14 +81,14 @@ module RSS
           end
         end
       end
-      
+
       class Image < RSS09::Image
         private
         def required_element?
           false
         end
       end
-      
+
       class Items < RSS09::Items
         class Item < RSS09::Items::Item
           private
@@ -179,7 +179,7 @@ module RSS
                 category.to_feed(rss, item)
               end
             end
-          
+
             class Category < RSS09::Items::Item::Categories::Category
               def to_feed(rss, item)
                 category = Rss::Channel::Item::Category.new
@@ -212,11 +212,11 @@ module RSS
           end
         end
       end
-      
+
       class Textinput < RSS09::Textinput
       end
     end
-    
+
     add_maker("2.0", "2.0", RSS20)
     add_maker("rss2.0", "2.0", RSS20)
   end
diff --git a/lib/rss/maker/base.rb b/lib/rss/maker/base.rb
index 3a7d255ae9..615088f8f7 100644
--- a/lib/rss/maker/base.rb
+++ b/lib/rss/maker/base.rb
@@ -395,7 +395,7 @@ module RSS
           end
         EOC
       end
-      
+
       attr_reader :feed_version
       alias_method(:rss_version, :feed_version)
       attr_accessor :version, :encoding, :standalone
@@ -409,7 +409,7 @@ module RSS
         @encoding = "UTF-8"
         @standalone = nil
       end
-      
+
       def make
         yield(self)
         to_feed
@@ -423,7 +423,7 @@ module RSS
         feed.validate
         feed
       end
-      
+
       private
       remove_method :make_xml_stylesheets
       def make_xml_stylesheets
@@ -440,7 +440,7 @@ module RSS
           attr_accessor attribute
           add_need_initialize_variable(attribute)
         end
-        
+
         def to_feed(feed)
           xss = ::RSS::XMLStyleSheet.new
           guess_type_if_need(xss)
@@ -463,7 +463,7 @@ module RSS
         end
       end
     end
-    
+
     class ChannelBase < Base
       include SetupDefaultDate
 
@@ -538,7 +538,7 @@ module RSS
           end
         end
       end
-      
+
       class SkipHoursBase < Base
         def_array_element("hour")
 
@@ -549,7 +549,7 @@ module RSS
           end
         end
       end
-      
+
       class CloudBase < Base
         %w(domain port path registerProcedure protocol).each do |element|
           attr_accessor element
@@ -619,7 +619,7 @@ module RSS
         include AtomTextConstructBase
       end
     end
-    
+
     class ImageBase < Base
       %w(title url width height description).each do |element|
         attr_accessor element
@@ -630,18 +630,18 @@ module RSS
         @maker.channel.link
       end
     end
-    
+
     class ItemsBase < Base
       def_array_element("item")
 
       attr_accessor :do_sort, :max_size
-      
+
       def initialize(maker)
         super
         @do_sort = false
         @max_size = -1
       end
-      
+
       def normalize
         if @max_size >= 0
           sort_if_need[0...@max_size]
diff --git a/lib/rss/maker/dublincore.rb b/lib/rss/maker/dublincore.rb
index ff4813fe19..9069c27d06 100644
--- a/lib/rss/maker/dublincore.rb
+++ b/lib/rss/maker/dublincore.rb
@@ -90,7 +90,7 @@ EOC
     class ChannelBase
       include DublinCoreModel
     end
-    
+
     class ImageBase; include DublinCoreModel; end
     class ItemsBase
       class ItemBase
diff --git a/lib/rss/maker/image.rb b/lib/rss/maker/image.rb
index b95cf4c714..e2b36e0a08 100644
--- a/lib/rss/maker/image.rb
+++ b/lib/rss/maker/image.rb
@@ -89,7 +89,7 @@ EOC
     end
 
     class ChannelBase; include Maker::ImageFaviconModel; end
-    
+
     class ItemsBase
       class ItemBase; include Maker::ImageItemModel; end
     end
diff --git a/lib/rss/maker/taxonomy.rb b/lib/rss/maker/taxonomy.rb
index 211603840f..13ae9aa805 100644
--- a/lib/rss/maker/taxonomy.rb
+++ b/lib/rss/maker/taxonomy.rb
@@ -72,12 +72,12 @@ EOC
         class TaxonomyTopicBase < Base
           include DublinCoreModel
           include TaxonomyTopicsModel
-          
+
           attr_accessor :value
           add_need_initialize_variable("value")
           alias_method(:taxo_link, :value)
           alias_method(:taxo_link=, :value=)
-          
+
           def have_required_values?
             @value
           end
@@ -88,11 +88,11 @@ EOC
     class RSSBase
       include TaxonomyTopicModel
     end
-    
+
     class ChannelBase
       include TaxonomyTopicsModel
     end
-    
+
     class ItemsBase
       class ItemBase
         include TaxonomyTopicsModel
diff --git a/lib/rss/maker/trackback.rb b/lib/rss/maker/trackback.rb
index 278fe53ebe..00f001cb85 100644
--- a/lib/rss/maker/trackback.rb
+++ b/lib/rss/maker/trackback.rb
@@ -19,7 +19,7 @@ module RSS
         class TrackBackAboutBase < Base
           attr_accessor :value
           add_need_initialize_variable("value")
-          
+
           alias_method(:resource, :value)
           alias_method(:resource=, :value=)
           alias_method(:content, :value)
diff --git a/lib/rss/parser.rb b/lib/rss/parser.rb
index 9b28f0fa8a..225e07d504 100644
--- a/lib/rss/parser.rb
+++ b/lib/rss/parser.rb
@@ -98,7 +98,7 @@ module RSS
       return rss if maybe_xml?(rss)
 
       uri = to_uri(rss)
-      
+
       if uri.respond_to?(:read)
         uri.read
       elsif !rss.tainted? and File.readable?(rss)
@@ -133,7 +133,7 @@ module RSS
         listener.raise_for_undefined_entity?
       end
     end
-    
+
     def initialize(rss)
       @listener = self.class.listener.new
       @rss = rss
@@ -196,13 +196,13 @@ module RSS
       def available_tags(uri)
         (@@accessor_bases[uri] || {}).keys
       end
-      
+
       # register uri against this name.
       def register_uri(uri, name)
         @@registered_uris[name] ||= {}
         @@registered_uris[name][uri] = nil
       end
-      
+
       # test if this uri is registered against this name
       def uri_registered?(uri, name)
         @@registered_uris[name].has_key?(uri)
@@ -228,11 +228,11 @@ module RSS
         install_accessor_base(uri, name, accessor_base)
         def_get_text_element(uri, name, *get_file_and_line_from_caller(1))
       end
-      
+
       def raise_for_undefined_entity?
         true
       end
-    
+
       private
       # set the accessor for the uri, tag_name pair
       def install_accessor_base(uri, tag_name, accessor_base)
@@ -279,7 +279,7 @@ module RSS
       @xml_element = nil
       @last_xml_element = nil
     end
-    
+
     # set instance vars for version, encoding, standalone
     def xmldecl(version, encoding, standalone)
       @version, @encoding, @standalone = version, encoding, standalone
diff --git a/lib/rss/rexmlparser.rb b/lib/rss/rexmlparser.rb
index 4dabf59199..7112ac3669 100644
--- a/lib/rss/rexmlparser.rb
+++ b/lib/rss/rexmlparser.rb
@@ -7,7 +7,7 @@ if ([$1.to_i, $2.to_i] <=> [2, 5]) < 0
 end
 
 module RSS
-  
+
   class REXMLParser < BaseParser
 
     class << self
@@ -15,7 +15,7 @@ module RSS
         REXMLListener
       end
     end
-    
+
     private
     def _parse
       begin
@@ -28,9 +28,9 @@ module RSS
         raise NotWellFormedError.new(line){e.message}
       end
     end
-    
+
   end
-  
+
   class REXMLListener < BaseListener
 
     include REXML::StreamListener
@@ -41,7 +41,7 @@ module RSS
         false
       end
     end
-    
+
     def xmldecl(version, encoding, standalone)
       super(version, encoding, standalone == "yes")
       # Encoding is converted to UTF-8 when REXML parse XML.
diff --git a/lib/rss/rss.rb b/lib/rss/rss.rb
index 4b943ec55b..d1f6181a47 100644
--- a/lib/rss/rss.rb
+++ b/lib/rss/rss.rb
@@ -249,7 +249,7 @@ EOC
       # accessor
       convert_attr_reader name
       date_writer(name, type, disp_name)
-      
+
       install_element(name) do |n, elem_name|
         <<-EOC
         if @#{n}
@@ -634,7 +634,7 @@ EOC
     include SetupMaker
 
     INDENT = "  "
-    
+
     MUST_CALL_VALIDATORS = {}
     MODELS = []
     GET_ATTRIBUTES = []
@@ -830,7 +830,7 @@ EOC
     def full_name
       tag_name
     end
-    
+
     def converter=(converter)
       @converter = converter
       targets = children.dup
@@ -865,7 +865,7 @@ EOC
     ensure
       @do_validate = do_validate
     end
-    
+
     def validate_for_stream(tags, ignore_unknown_element=true)
       validate_attribute
       __validate(ignore_unknown_element, tags, false)
@@ -985,7 +985,7 @@ EOC
           end_tag = "\n#{indent}</#{full_name}>"
         end
       end
-      
+
       start_tag + content.join("\n") + end_tag
     end
 
@@ -1010,7 +1010,7 @@ EOC
       end
       attrs
     end
-    
+
     def tag_name_with_prefix(prefix)
       "#{prefix}:#{tag_name}"
     end
@@ -1210,7 +1210,7 @@ EOC
   module RootElementMixin
 
     include XMLStyleSheetMixin
-    
+
     attr_reader :output_encoding
     attr_reader :feed_type, :feed_subtype, :feed_version
     attr_accessor :version, :encoding, :standalone
@@ -1296,7 +1296,7 @@ EOC
       rv << "?>\n"
       rv
     end
-    
+
     def ns_declarations
       decls = {}
       self.class::NSPOOL.collect do |prefix, uri|
diff --git a/lib/rss/syndication.rb b/lib/rss/syndication.rb
index 3eb15429f6..c375645dd6 100644
--- a/lib/rss/syndication.rb
+++ b/lib/rss/syndication.rb
@@ -8,11 +8,11 @@ module RSS
   RDF.install_ns(SY_PREFIX, SY_URI)
 
   module SyndicationModel
-    
+
     extend BaseModel
-    
+
     ELEMENTS = []
-    
+
     def self.append_features(klass)
       super
 
diff --git a/lib/rss/taxonomy.rb b/lib/rss/taxonomy.rb
index 276f63b05d..b82e55dacc 100644
--- a/lib/rss/taxonomy.rb
+++ b/lib/rss/taxonomy.rb
@@ -24,7 +24,7 @@ module RSS
 
   module TaxonomyTopicsModel
     extend BaseModel
-    
+
     def self.append_features(klass)
       super
 
@@ -37,21 +37,21 @@ module RSS
 
     class TaxonomyTopics < Element
       include RSS10
-      
+
       Bag = ::RSS::RDF::Bag
 
       class << self
         def required_prefix
           TAXO_PREFIX
         end
-        
+
         def required_uri
           TAXO_URI
         end
       end
 
       @tag_name = "topics"
-      
+
       install_have_child_element("Bag", RDF::URI, nil)
       install_must_call_validator('rdf', RDF::URI)
 
@@ -84,10 +84,10 @@ module RSS
       end
     end
   end
-  
+
   module TaxonomyTopicModel
     extend BaseModel
-    
+
     def self.append_features(klass)
       super
       var_name = "#{TAXO_PREFIX}_topic"
@@ -99,12 +99,12 @@ module RSS
 
       include DublinCoreModel
       include TaxonomyTopicsModel
-      
+
       class << self
         def required_prefix
           TAXO_PREFIX
         end
-        
+
         def required_uri
           TAXO_URI
         end
@@ -115,7 +115,7 @@ module RSS
       install_get_attribute("about", ::RSS::RDF::URI, true, nil, nil,
                             "#{RDF::PREFIX}:about")
       install_text_element("link", TAXO_URI, "?", "#{TAXO_PREFIX}_link")
-        
+
       def initialize(*args)
         if Utils.element_initialize_arguments?(args)
           super
diff --git a/lib/rss/trackback.rb b/lib/rss/trackback.rb
index ee2491f332..59fedb5f3e 100644
--- a/lib/rss/trackback.rb
+++ b/lib/rss/trackback.rb
@@ -23,7 +23,7 @@ module RSS
   module BaseTrackBackModel
 
     ELEMENTS = %w(ping about)
-    
+
     def append_features(klass)
       super
 
@@ -47,7 +47,7 @@ module RSS
             end
           EOC
         end
-        
+
         [%w(about s)].each do |name, postfix|
           var_name = "#{TRACKBACK_PREFIX}_#{name}"
           klass_name = "TrackBack#{Utils.to_class_name(name)}"
@@ -105,7 +105,7 @@ module RSS
         def required_prefix
           TRACKBACK_PREFIX
         end
-        
+
         def required_uri
           TRACKBACK_URI
         end
@@ -141,17 +141,17 @@ module RSS
       include RSS10
 
       class << self
-        
+
         def required_prefix
           TRACKBACK_PREFIX
         end
-        
+
         def required_uri
           TRACKBACK_URI
         end
 
       end
-      
+
       @tag_name = "about"
 
       [
@@ -163,7 +163,7 @@ module RSS
 
       alias_method(:value, :resource)
       alias_method(:value=, :resource=)
-      
+
       def initialize(*args)
         if Utils.element_initialize_arguments?(args)
           super
@@ -185,7 +185,7 @@ module RSS
       def setup_maker_attributes(about)
         about.resource = self.resource
       end
-      
+
     end
   end
 
@@ -197,7 +197,7 @@ module RSS
       include RSS09
 
       @tag_name = "ping"
-      
+
       content_setup
 
       class << self
@@ -205,13 +205,13 @@ module RSS
         def required_prefix
           TRACKBACK_PREFIX
         end
-        
+
         def required_uri
           TRACKBACK_URI
         end
 
       end
-      
+
       alias_method(:value, :content)
       alias_method(:value=, :content=)
 
@@ -223,26 +223,26 @@ module RSS
           self.content = args[0]
         end
       end
-      
+
       def full_name
         tag_name_with_prefix(TRACKBACK_PREFIX)
       end
-      
+
     end
 
     class TrackBackAbout < Element
       include RSS09
 
       @tag_name = "about"
-      
+
       content_setup
 
       class << self
-        
+
         def required_prefix
           TRACKBACK_PREFIX
         end
-        
+
         def required_uri
           TRACKBACK_URI
         end
@@ -260,11 +260,11 @@ module RSS
           self.content = args[0]
         end
       end
-      
+
       def full_name
         tag_name_with_prefix(TRACKBACK_PREFIX)
       end
-      
+
     end
   end
 
diff --git a/lib/rss/utils.rb b/lib/rss/utils.rb
index 0e4001e1f3..75b05d45c7 100644
--- a/lib/rss/utils.rb
+++ b/lib/rss/utils.rb
@@ -8,7 +8,7 @@ module RSS
         "#{part[0, 1].upcase}#{part[1..-1]}"
       end.join("")
     end
-    
+
     def get_file_and_line_from_caller(i=0)
       file, line, = caller[i].split(':')
       line = line.to_i
@@ -21,7 +21,7 @@ module RSS
       s.to_s.gsub(/&/, "&amp;").gsub(/\"/, "&quot;").gsub(/>/, "&gt;").gsub(/</, "&lt;")
     end
     alias h html_escape
-    
+
     # If +value+ is an instance of class +klass+, return it, else
     # create a new instance of +klass+ with value +value+.
     def new_with_value_if_need(klass, value)
diff --git a/lib/rss/xml-stylesheet.rb b/lib/rss/xml-stylesheet.rb
index 559d6bcd56..96ee95050e 100644
--- a/lib/rss/xml-stylesheet.rb
+++ b/lib/rss/xml-stylesheet.rb
@@ -8,7 +8,7 @@ module RSS
       super
       @xml_stylesheets = []
     end
-    
+
     private
     def xml_stylesheet_pi
       xsss = @xml_stylesheets.collect do |xss|
@@ -94,7 +94,7 @@ module RSS
         xss.__send__("#{attr}=", __send__(attr))
       end
     end
-    
+
     private
     def guess_type(filename)
       /\.([^.]+)$/ =~ filename
diff --git a/lib/rss/xmlparser.rb b/lib/rss/xmlparser.rb
index 3dfe7d461a..aa902be396 100644
--- a/lib/rss/xmlparser.rb
+++ b/lib/rss/xmlparser.rb
@@ -26,9 +26,9 @@ module XML
 end
 
 module RSS
-  
+
   class REXMLLikeXMLParser < ::XML::Parser
-    
+
     include ::XML::Encoding_ja
 
     def listener=(listener)
@@ -38,7 +38,7 @@ module RSS
     def startElement(name, attrs)
       @listener.tag_start(name, attrs)
     end
-    
+
     def endElement(name)
       @listener.tag_end(name)
     end
@@ -64,7 +64,7 @@ module RSS
         XMLParserListener
       end
     end
-    
+
     private
     def _parse
       begin
@@ -75,13 +75,13 @@ module RSS
         raise NotWellFormedError.new(parser.line){e.message}
       end
     end
-    
+
   end
-  
+
   class XMLParserListener < BaseListener
 
     include ListenerMixin
-    
+
     def xmldecl(version, encoding, standalone)
       super
       # Encoding is converted to UTF-8 when XMLParser parses XML.
diff --git a/lib/rss/xmlscanner.rb b/lib/rss/xmlscanner.rb
index 61b9fa6bf4..1cdf81c0c3 100644
--- a/lib/rss/xmlscanner.rb
+++ b/lib/rss/xmlscanner.rb
@@ -2,15 +2,15 @@ require 'xmlscan/scanner'
 require 'stringio'
 
 module RSS
-  
+
   class XMLScanParser < BaseParser
-    
+
     class << self
       def listener
         XMLScanListener
       end
     end
-    
+
     private
     def _parse
       begin
@@ -26,11 +26,11 @@ module RSS
         raise NotWellFormedError.new(lineno){e.message}
       end
     end
-    
+
   end
 
   class XMLScanListener < BaseListener
-    
+
     include XMLScan::Visitor
     include ListenerMixin