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

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

38 files changed, 156 insertions, 156 deletions

diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/calendar.rb b/ext/tk/sample/tkextlib/iwidgets/sample/calendar.rb
index 4dd929c035..bb09b4dfd3 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/calendar.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/calendar.rb
@@ -2,9 +2,9 @@
 require 'tk'
 require 'tkextlib/iwidgets'
 
-Tk::Iwidgets::Calendar.new(:command=>proc{|arg| puts(arg.date)}, 
-                           :weekendbackground=>'mistyrose', 
-                           :weekdaybackground=>'ghostwhite', 
-                           :outline=>'black', :startday=>'wednesday', 
+Tk::Iwidgets::Calendar.new(:command=>proc{|arg| puts(arg.date)},
+                           :weekendbackground=>'mistyrose',
+                           :weekdaybackground=>'ghostwhite',
+                           :outline=>'black', :startday=>'wednesday',
                            :days=>%w(We Th Fr Sa Su Mo Tu)).pack
 Tk.mainloop
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/combobox.rb b/ext/tk/sample/tkextlib/iwidgets/sample/combobox.rb
index ec9c7a1df3..36847538d6 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/combobox.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/combobox.rb
@@ -5,11 +5,11 @@ require 'tkextlib/iwidgets'
 #
 # Non-editable Dropdown Combobox
 #
-cb1 = Tk::Iwidgets::Combobox.new(:labeltext=>'Month:', 
+cb1 = Tk::Iwidgets::Combobox.new(:labeltext=>'Month:',
                                  :selectioncommand=>proc{
                                    puts(cb1.get_curselection)
-                                 }, 
-                                 :editable=>false, :listheight=>185, 
+                                 },
+                                 :editable=>false, :listheight=>185,
                                  :popupcursor=>'hand1')
 
 cb1.insert_list('end', *%w(Jan Feb Mar Apr May June Jul Aug Sept Oct Nov Dec))
@@ -18,7 +18,7 @@ cb1.insert_list('end', *%w(Jan Feb Mar Apr May June Jul Aug Sept Oct Nov Dec))
 #
 # Editable Dropdown Combobox
 #
-cb2 = Tk::Iwidgets::Combobox.new(:labeltext=>'Operating System:', 
+cb2 = Tk::Iwidgets::Combobox.new(:labeltext=>'Operating System:',
                                  :selectioncommand=>proc{
                                    puts(cb2.get_curselection)
                                  })
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/dialogshell.rb b/ext/tk/sample/tkextlib/iwidgets/sample/dialogshell.rb
index 197521e0a4..00ee99786c 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/dialogshell.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/dialogshell.rb
@@ -8,7 +8,7 @@ ds.add('OK', :text=>'OK', :command=>proc{puts 'OK'; ds.deactivate})
 ds.add('Cancel', :text=>'Cancel', :command=>proc{puts 'Cancel'; ds.deactivate})
 ds.default('OK')
 
-TkButton.new(:text=>'ACTIVATE', :padx=>7, :pady=>7, 
+TkButton.new(:text=>'ACTIVATE', :padx=>7, :pady=>7,
              :command=>proc{puts ds.activate}).pack(:padx=>10, :pady=>10)
 
 Tk.mainloop
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/disjointlistbox.rb b/ext/tk/sample/tkextlib/iwidgets/sample/disjointlistbox.rb
index 85c5d03d17..682c853e47 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/disjointlistbox.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/disjointlistbox.rb
@@ -2,7 +2,7 @@
 require 'tk'
 require 'tkextlib/iwidgets'
 
-djl = Tk::Iwidgets::Disjointlistbox.new.pack(:fill=>:both, :expand=>true, 
+djl = Tk::Iwidgets::Disjointlistbox.new.pack(:fill=>:both, :expand=>true,
                                              :padx=>10,  :pady=>10)
 djl.set_lhs(*[0,2,4,5])
 djl.set_rhs(3,6)
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/entryfield-1.rb b/ext/tk/sample/tkextlib/iwidgets/sample/entryfield-1.rb
index 856d883a92..8563a0894d 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/entryfield-1.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/entryfield-1.rb
@@ -11,20 +11,20 @@ TkOption.add('*textBackground', 'white')
 
 ef  = Tk::Iwidgets::Entryfield.new(:command=>proc{puts "Return Pressed"})
 
-fef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Fixed:', 
+fef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Fixed:',
                                    :fixed=>10, :width=>12)
 
-nef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Numeric:', 
+nef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Numeric:',
                                    :validate=>:numeric, :width=>12)
 
-aef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Alphabetic:', 
-                                   :validate=>:alphabetic, :width=>12, 
+aef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Alphabetic:',
+                                   :validate=>:alphabetic, :width=>12,
                                    :invalid=>proc{
                                      puts "Alphabetic contents invalid"
                                    })
 
-pef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Password:', :width=>12, 
-                                   :show=>Tk::UTF8_String("\267"),  
+pef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Password:', :width=>12,
+                                   :show=>Tk::UTF8_String("\267"),
                                                          ## <=== utf8 character
                                    :command=>proc{puts "Return Pressed"})
 
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/entryfield-2.rb b/ext/tk/sample/tkextlib/iwidgets/sample/entryfield-2.rb
index e2b4eec6bc..d8ccdf8555 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/entryfield-2.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/entryfield-2.rb
@@ -17,19 +17,19 @@ TkOption.add('*textBackground', 'white')
 
 ef  = Tk::Iwidgets::Entryfield.new(:command=>proc{puts "Return Pressed"})
 
-fef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Fixed:', 
+fef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Fixed:',
                                    :fixed=>10, :width=>12)
 
-nef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Numeric:', 
+nef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Numeric:',
                                    :validate=>:numeric, :width=>12)
 
-aef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Alphabetic:', 
-                                   :validate=>:alphabetic, :width=>12, 
+aef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Alphabetic:',
+                                   :validate=>:alphabetic, :width=>12,
                                    :invalid=>proc{
                                      puts "Alphabetic contents invalid"
                                    })
 
-pef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Password:', :width=>12, 
+pef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Password:', :width=>12,
                                    :show=>"\267",  ## <=== utf8 character
                                    :command=>proc{puts "Return Pressed"})
 
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/entryfield-3.rb b/ext/tk/sample/tkextlib/iwidgets/sample/entryfield-3.rb
index bddd542f64..327f90893c 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/entryfield-3.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/entryfield-3.rb
@@ -13,19 +13,19 @@ TkOption.add('*textBackground', 'white')
 
 ef  = Tk::Iwidgets::Entryfield.new(:command=>proc{puts "Return Pressed"})
 
-fef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Fixed:', 
+fef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Fixed:',
                                    :fixed=>10, :width=>12)
 
-nef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Numeric:', 
+nef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Numeric:',
                                    :validate=>:numeric, :width=>12)
 
-aef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Alphabetic:', 
-                                   :validate=>:alphabetic, :width=>12, 
+aef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Alphabetic:',
+                                   :validate=>:alphabetic, :width=>12,
                                    :invalid=>proc{
                                      puts "Alphabetic contents invalid"
                                    })
 
-pef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Password:', :width=>12, 
+pef = Tk::Iwidgets::Entryfield.new(:labeltext=>'Password:', :width=>12,
                                    :show=>"\267",  ## <=== utf8 character
                                    :command=>proc{puts "Return Pressed"})
 
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/extbutton.rb b/ext/tk/sample/tkextlib/iwidgets/sample/extbutton.rb
index 6971052b60..4944c72ea5 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/extbutton.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/extbutton.rb
@@ -2,9 +2,9 @@
 require 'tk'
 require 'tkextlib/iwidgets'
 
-Tk::Iwidgets::Extbutton.new(:text=>'Bitmap example', :bitmap=>'info', 
-                            :background=>'bisque',  :activeforeground=>'red', 
-                            :bitmapforeground=>'blue', :defaultring=>true, 
+Tk::Iwidgets::Extbutton.new(:text=>'Bitmap example', :bitmap=>'info',
+                            :background=>'bisque',  :activeforeground=>'red',
+                            :bitmapforeground=>'blue', :defaultring=>true,
                             :command=>proc{
                               puts "Bisque is beautiful"
                             }).pack(:expand=>true)
@@ -12,9 +12,9 @@ Tk::Iwidgets::Extbutton.new(:text=>'Bitmap example', :bitmap=>'info',
 #img = TkPhotoImage.new(:file=>File.join(File.dirname(File.expand_path(__FILE__)), '../../../images/earthris.gif'))
 img = TkPhotoImage.new(:file=>File.join(File.dirname(File.expand_path(__FILE__)), '../catalog_demo/images/clear.gif'))
 
-Tk::Iwidgets::Extbutton.new(:text=>'Image example', :relief=>:ridge, 
-                            :image=>img, :imagepos=>:e, :font=>'9x15bold', 
-                            :activebackground=>'lightyellow', 
+Tk::Iwidgets::Extbutton.new(:text=>'Image example', :relief=>:ridge,
+                            :image=>img, :imagepos=>:e, :font=>'9x15bold',
+                            :activebackground=>'lightyellow',
                             :background=>'lightgreen').pack(:expand=>true)
 
 Tk.mainloop
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/extfileselectionbox.rb b/ext/tk/sample/tkextlib/iwidgets/sample/extfileselectionbox.rb
index 4738084d9d..63e4be2fee 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/extfileselectionbox.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/extfileselectionbox.rb
@@ -2,7 +2,7 @@
 require 'tk'
 require 'tkextlib/iwidgets'
 
-Tk::Iwidgets::Extfileselectionbox.new.pack(:padx=>10, :pady=>10, 
+Tk::Iwidgets::Extfileselectionbox.new.pack(:padx=>10, :pady=>10,
                                            :fill=>:both, :expand=>true)
 
 Tk.mainloop
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/fileselectionbox.rb b/ext/tk/sample/tkextlib/iwidgets/sample/fileselectionbox.rb
index 2ad3adb974..3a5b513bde 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/fileselectionbox.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/fileselectionbox.rb
@@ -2,7 +2,7 @@
 require 'tk'
 require 'tkextlib/iwidgets'
 
-Tk::Iwidgets::Fileselectionbox.new.pack(:padx=>10, :pady=>10, 
+Tk::Iwidgets::Fileselectionbox.new.pack(:padx=>10, :pady=>10,
                                         :fill=>:both, :expand=>true)
 
 Tk.mainloop
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/hierarchy.rb b/ext/tk/sample/tkextlib/iwidgets/sample/hierarchy.rb
index ddb08d8b78..085070e652 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/hierarchy.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/hierarchy.rb
@@ -10,16 +10,16 @@ def get_files(file)
   }
 end
 
-Tk::Iwidgets::Hierarchy.new(:querycommand=>proc{|arg| get_files(arg.node)}, 
-                            :visibleitems=>'30x15', 
-                            :labeltext=>ENV['HOME']).pack(:side=>:left, 
-                                                          :expand=>true, 
+Tk::Iwidgets::Hierarchy.new(:querycommand=>proc{|arg| get_files(arg.node)},
+                            :visibleitems=>'30x15',
+                            :labeltext=>ENV['HOME']).pack(:side=>:left,
+                                                          :expand=>true,
                                                           :fill=>:both)
 
-# Tk::Iwidgets::Hierarchy.new(:querycommand=>[proc{|n| get_files(n)}, '%n'], 
-#                           :visibleitems=>'30x15', 
-#                           :labeltext=>ENV['HOME']).pack(:side=>:left, 
-#                                                         :expand=>true, 
+# Tk::Iwidgets::Hierarchy.new(:querycommand=>[proc{|n| get_files(n)}, '%n'],
+#                           :visibleitems=>'30x15',
+#                           :labeltext=>ENV['HOME']).pack(:side=>:left,
+#                                                         :expand=>true,
 #                                                         :fill=>:both)
 
 Tk.mainloop
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/labeledwidget.rb b/ext/tk/sample/tkextlib/iwidgets/sample/labeledwidget.rb
index 1d2e0a98a3..577550af55 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/labeledwidget.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/labeledwidget.rb
@@ -2,11 +2,11 @@
 require 'tk'
 require 'tkextlib/iwidgets'
 
-lw = Tk::Iwidgets::Labeledwidget.new(:labeltext=>'Canvas Widget', 
+lw = Tk::Iwidgets::Labeledwidget.new(:labeltext=>'Canvas Widget',
                                      :labelpos=>:s)
 lw.pack(:fill=>:both, :expand=>true, :padx=>10, :pady=>10)
 
-cw = TkCanvas.new(lw.child_site, :relief=>:raised, :width=>200, :height=>200, 
+cw = TkCanvas.new(lw.child_site, :relief=>:raised, :width=>200, :height=>200,
                   :borderwidth=>3, :background=>:white)
 cw.pack(:padx=>10, :pady=>10)
 
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/mainwindow.rb b/ext/tk/sample/tkextlib/iwidgets/sample/mainwindow.rb
index b87a6d27f9..c9677f2270 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/mainwindow.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/mainwindow.rb
@@ -4,55 +4,55 @@ require 'tkextlib/iwidgets'
 
 mw = Tk::Iwidgets::Mainwindow.new
 
-mw.menubar.add(:menubutton, 'file', :text=>'File', :underline=>0, 
+mw.menubar.add(:menubutton, 'file', :text=>'File', :underline=>0,
                :padx=>8, :pady=>2, :menu=>[
-                 [:options, {:tearoff=>false}], 
+                 [:options, {:tearoff=>false}],
 
                  [:command, 'new', {
-                     :label=>'New', :underline=>0, 
+                     :label=>'New', :underline=>0,
                      :helpstr=>'Create a new file'
                    }
-                 ], 
+                 ],
 
                  [:command, 'open', {
-                     :label=>'Open ...', :underline=>0, 
+                     :label=>'Open ...', :underline=>0,
                      :helpstr=>'Open an existing file'
                    }
-                 ], 
+                 ],
 
                  [:command, 'save', {
-                     :label=>'Save', :underline=>0, 
+                     :label=>'Save', :underline=>0,
                      :helpstr=>'Save the current file'
                    }
-                 ], 
+                 ],
 
                  [:command, 'saveas', {
-                     :label=>'Save As', :underline=>5, 
+                     :label=>'Save As', :underline=>5,
                      :helpstr=>'Save the file as a different name'
                    }
-                 ], 
+                 ],
 
                  [:command, 'print', {
-                     :label=>'Print', :underline=>0, 
+                     :label=>'Print', :underline=>0,
                      :helpstr=>'Print the file'
                    }
-                 ], 
+                 ],
 
-                 [:separator, 'sep1'], 
+                 [:separator, 'sep1'],
 
                  [:command, 'close', {
-                     :label=>'Close', :underline=>0, 
+                     :label=>'Close', :underline=>0,
                      :helpstr=>'Close the file'
                    }
-                 ], 
+                 ],
 
-                 [:separator, 'sep2'], 
+                 [:separator, 'sep2'],
 
                  [:command, 'exit', {
-                     :label=>'Exit', :underline=>1, 
+                     :label=>'Exit', :underline=>1,
                      :helpstr=>'Exit this application'
                    }
-                 ], 
+                 ],
 
                  nil
                ])
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/menubar.rb b/ext/tk/sample/tkextlib/iwidgets/sample/menubar.rb
index 891761adc1..e01275217d 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/menubar.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/menubar.rb
@@ -8,96 +8,96 @@ viewmode = TkVariable.new
 menu_spec = [
   [:menubutton, 'file', {
       :text=>'File', :menu=>[
-        [:options, {:tearoff=>false}], 
+        [:options, {:tearoff=>false}],
 
         [:command, 'new', {
-            :label=>'New', :helpstr=>'Open new document', 
+            :label=>'New', :helpstr=>'Open new document',
             :command=>proc{puts 'NEW'}
           }
-        ], 
+        ],
 
         [:command, 'close', {
-            :label=>'Close', :helpstr=>'Close current document', 
+            :label=>'Close', :helpstr=>'Close current document',
             :command=>proc{puts 'CLOSE'}
           }
-        ], 
+        ],
 
-        [:separator, 'sep1'], 
+        [:separator, 'sep1'],
 
         [:command, 'exit', {
-            :label=>'Exit', :helpstr=>'Exit application', 
+            :label=>'Exit', :helpstr=>'Exit application',
             :command=>proc{exit}
           }
         ]
       ]
     }
-  ], 
+  ],
 
   [:menubutton, 'edit', {
       :text=>'Edit', :menu=>[
-        [:options, {:tearoff=>false}], 
+        [:options, {:tearoff=>false}],
 
         [:command, 'undo', {
-            :label=>'Undo', :underline=>0, 
-            :helpstr=>'Undo last command', 
+            :label=>'Undo', :underline=>0,
+            :helpstr=>'Undo last command',
             :command=>proc{puts 'UNDO'}
           }
-        ], 
+        ],
 
-        [:separator, 'sep2'], 
+        [:separator, 'sep2'],
 
         [:command, 'cut', {
-            :label=>'Cut', :underline=>1, 
-            :helpstr=>'Cut selection to clipboard', 
+            :label=>'Cut', :underline=>1,
+            :helpstr=>'Cut selection to clipboard',
             :command=>proc{puts 'CUT'}
           }
-        ], 
+        ],
 
         [:command, 'copy', {
-            :label=>'Copy', :underline=>1, 
-            :helpstr=>'Copy selection to clipboard', 
+            :label=>'Copy', :underline=>1,
+            :helpstr=>'Copy selection to clipboard',
             :command=>proc{puts 'COPY'}
           }
-        ], 
+        ],
 
         [:command, 'paste', {
-            :label=>'Paste', :underline=>0, 
-            :helpstr=>'Paste clipboard contents', 
+            :label=>'Paste', :underline=>0,
+            :helpstr=>'Paste clipboard contents',
             :command=>proc{puts 'PASTE'}
           }
         ]
       ]
     }
-  ], 
+  ],
 
   [:menubutton, 'options', {
       :text=>'Options', :menu=>[
-        [:options, {:tearoff=>false, :selectcolor=>'blue'}], 
+        [:options, {:tearoff=>false, :selectcolor=>'blue'}],
 
         [:radiobutton, 'byName', {
-            :variable=>viewmode, :value=>'NAME', 
-            :label=>'by Name', :helpstr=>'View files by name order', 
+            :variable=>viewmode, :value=>'NAME',
+            :label=>'by Name', :helpstr=>'View files by name order',
             :command=>proc{puts 'NAME'}
           }
-        ], 
+        ],
 
         [:radiobutton, 'byDate', {
-            :variable=>viewmode, :value=>'DATE', 
-            :label=>'by Date', :helpstr=>'View files by date order', 
+            :variable=>viewmode, :value=>'DATE',
+            :label=>'by Date', :helpstr=>'View files by date order',
             :command=>proc{puts 'DATE'}
           }
-        ], 
+        ],
 
         [:cascade, 'prefs', {
             :label=>'Preferences', :menu=>[
               [:command, 'colors', {
-                  :label=>'Colors...', :helpstr=>'Change text colors', 
+                  :label=>'Colors...', :helpstr=>'Change text colors',
                   :command=>proc{puts 'COLORS'}
                 }
-              ], 
+              ],
 
               [:command, 'fonts', {
-                  :label=>'Fonts...', :helpstr=>'Change text font', 
+                  :label=>'Fonts...', :helpstr=>'Change text font',
                   :command=>proc{puts 'COLORS'}
                 }
               ]
@@ -109,7 +109,7 @@ menu_spec = [
   ]
 ]
 
-#mb = Tk::Iwidgets::Menubar.new(:helpvariable=>helpvar, 
+#mb = Tk::Iwidgets::Menubar.new(:helpvariable=>helpvar,
 #                              :menubuttons=>menu_spec)
 mb = Tk::Iwidgets::Menubar.new(:helpvariable=>helpvar)
 mb.configure(:menubuttons=>menu_spec)
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/menubar2.rb b/ext/tk/sample/tkextlib/iwidgets/sample/menubar2.rb
index d6f2292650..477c916e07 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/menubar2.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/menubar2.rb
@@ -9,13 +9,13 @@ mb = Tk::Iwidgets::Menubar.new
 mb.menubuttons = [
   [:menubutton, 'file', {
       :text=>'File', :menu=>[
-        [:command,   'new',   {:label=>'New'}], 
-        [:command,   'close', {:label=>'Close'}], 
-        [:separator, 'sep1'], 
+        [:command,   'new',   {:label=>'New'}],
+        [:command,   'close', {:label=>'Close'}],
+        [:separator, 'sep1'],
         [:command,   'quit',  {:label=>'Quit'}]
       ]
     }
-  ], 
+  ],
   [:menubutton, 'edit', {:text=>'Edit'}]
 ]
 
@@ -28,14 +28,14 @@ mb.add(:command, '.edit.paste', :label=>'Paste', :underline=>0)
 mb.add(:menubutton, '.options', :text=>'Options', :menu=>[
          [:radiobutton, 'byName', {
              :variable=>viewmode, :value=>'NAME', :label=>'by Name'}
-         ], 
+         ],
          [:radiobutton, 'byDate', {
              :variable=>viewmode, :value=>'DATE', :label=>'by Date'}
          ]
        ])
 
 mb.add(:cascade, '.options.prefs', :label=>'Preferences', :menu=>[
-         [:command, 'colors', {:label=>'Colors...'}], 
+         [:command, 'colors', {:label=>'Colors...'}],
          [:command, 'fonts',  {:label=>'Fonts...'}]
        ])
 
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/messagebox1.rb b/ext/tk/sample/tkextlib/iwidgets/sample/messagebox1.rb
index 3221dbc30c..87b2d38907 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/messagebox1.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/messagebox1.rb
@@ -2,9 +2,9 @@
 require 'tk'
 require 'tkextlib/iwidgets'
 
-mb = Tk::Iwidgets::Messagebox.new(:hscrollmode=>:dynamic, 
-                                  :labeltext=>'Messages', :labelpos=>:n, 
-                                  :height=>120, :width=>550, 
+mb = Tk::Iwidgets::Messagebox.new(:hscrollmode=>:dynamic,
+                                  :labeltext=>'Messages', :labelpos=>:n,
+                                  :height=>120, :width=>550,
                                   :savedir=>'/tmp', :textbackground=>'#d9d9d9')
 mb.pack(:padx=>5, :pady=>5, :fill=>:both, :expand=>true)
 
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/messagebox2.rb b/ext/tk/sample/tkextlib/iwidgets/sample/messagebox2.rb
index 2f0e3648a6..5278883568 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/messagebox2.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/messagebox2.rb
@@ -2,9 +2,9 @@
 require 'tk'
 require 'tkextlib/iwidgets'
 
-mb = Tk::Iwidgets::Messagebox.new(:hscrollmode=>:dynamic, 
-                                  :labeltext=>'Messages', :labelpos=>:n, 
-                                  :height=>120, :width=>550, 
+mb = Tk::Iwidgets::Messagebox.new(:hscrollmode=>:dynamic,
+                                  :labeltext=>'Messages', :labelpos=>:n,
+                                  :height=>120, :width=>550,
                                   :savedir=>'/tmp', :textbackground=>'#d9d9d9')
 mb.pack(:padx=>5, :pady=>5, :fill=>:both, :expand=>true)
 
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/messagedialog.rb b/ext/tk/sample/tkextlib/iwidgets/sample/messagedialog.rb
index 6c6bfbca3f..52799f206c 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/messagedialog.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/messagedialog.rb
@@ -7,8 +7,8 @@ mainloop = Thread.new{Tk.mainloop}
 #
 # Standard question message dialog used for confirmation.
 #
-md = Tk::Iwidgets::Messagedialog.new(:title=>'Message Dialog', 
-                                     :text=>'Are you sure ? ', 
+md = Tk::Iwidgets::Messagedialog.new(:title=>'Message Dialog',
+                                     :text=>'Are you sure ? ',
                                      :bitmap=>'questhead', :modality=>:global)
 
 md.buttonconfigure('OK', :text=>'Yes')
@@ -32,8 +32,8 @@ md.destroy
 #
 bmp = '@' + File.join(File.dirname(File.expand_path(__FILE__)), '../catalog_demo/images/text.xbm')
 
-cr = Tk::Iwidgets::Messagedialog.new(:title=>'Copyright', 
-                                     :bitmap=>bmp, :imagepos=>:n, 
+cr = Tk::Iwidgets::Messagedialog.new(:title=>'Copyright',
+                                     :bitmap=>bmp, :imagepos=>:n,
                                      :text=>"Copyright 200x XXX Corporation\nAll rights reserved")
 
 cr.hide('Cancel')
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/notebook.rb b/ext/tk/sample/tkextlib/iwidgets/sample/notebook.rb
index e33b81eb6f..055312ec96 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/notebook.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/notebook.rb
@@ -4,7 +4,7 @@ require 'tkextlib/iwidgets'
 
 # Create the tabnotebook widget and pack it.
 nb = Tk::Iwidgets::Notebook.new(:width=>100, :height=>100)
-nb.pack(:anchor=>:nw, :fill=>:both, :expand=>true, 
+nb.pack(:anchor=>:nw, :fill=>:both, :expand=>true,
         :side=>:left, :padx=>10, :pady=>10)
 
 # Add two pages to the tabnotebook,
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/notebook2.rb b/ext/tk/sample/tkextlib/iwidgets/sample/notebook2.rb
index 649de4f024..41e9ce1bfc 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/notebook2.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/notebook2.rb
@@ -4,7 +4,7 @@ require 'tkextlib/iwidgets'
 
 # Create the tabnotebook widget and pack it.
 nb = Tk::Iwidgets::Notebook.new(:width=>100, :height=>100)
-nb.pack(:anchor=>:nw, :fill=>:both, :expand=>true, 
+nb.pack(:anchor=>:nw, :fill=>:both, :expand=>true,
         :side=>:top, :padx=>10, :pady=>0)
 
 # Add two pages to the tabnotebook,
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/optionmenu.rb b/ext/tk/sample/tkextlib/iwidgets/sample/optionmenu.rb
index 1fd7a5bc05..2b921ffab9 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/optionmenu.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/optionmenu.rb
@@ -2,7 +2,7 @@
 require 'tk'
 require 'tkextlib/iwidgets'
 
-om = Tk::Iwidgets::Optionmenu.new(:labelmargin=>5, :labelpos=>:w, 
+om = Tk::Iwidgets::Optionmenu.new(:labelmargin=>5, :labelpos=>:w,
                                   :labeltext=>"Operating System :")
 
 om.insert('end', 'Unix', 'VMS', 'Linux', 'OS/2', 'Windows NT', 'DOS')
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/panedwindow.rb b/ext/tk/sample/tkextlib/iwidgets/sample/panedwindow.rb
index 6e4458e508..88fc401483 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/panedwindow.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/panedwindow.rb
@@ -11,7 +11,7 @@ pw.add('bottom', :margin=>10, :minimum=>10)
 pw.pack(:fill=>:both, :expand=>true)
 
 pw.child_site_list.each{|pane|
-  TkButton.new(pane, :text=>pane.path, :relief=>:raised, 
+  TkButton.new(pane, :text=>pane.path, :relief=>:raised,
                :borderwidth=>2).pack(:fill=>:both, :expand=>true)
 }
 
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/panedwindow2.rb b/ext/tk/sample/tkextlib/iwidgets/sample/panedwindow2.rb
index 6779cb57db..96987d529c 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/panedwindow2.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/panedwindow2.rb
@@ -11,7 +11,7 @@ bottom = pw.add(:margin=>10, :minimum=>10)
 pw.pack(:fill=>:both, :expand=>true)
 
 pw.child_site_list.each{|pane|
-  TkButton.new(pane, :text=>pane.path, :relief=>:raised, 
+  TkButton.new(pane, :text=>pane.path, :relief=>:raised,
                :borderwidth=>2).pack(:fill=>:both, :expand=>true)
 }
 
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/promptdialog.rb b/ext/tk/sample/tkextlib/iwidgets/sample/promptdialog.rb
index 2c643e56f7..d92a26ead9 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/promptdialog.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/promptdialog.rb
@@ -6,7 +6,7 @@ mainloop = Thread.new{Tk.mainloop}
 
 TkOption.add('*textBackground', 'white')
 
-pd = Tk::Iwidgets::Promptdialog.new(:modality=>:global, :title=>'Password', 
+pd = Tk::Iwidgets::Promptdialog.new(:modality=>:global, :title=>'Password',
                                     :labeltext=>'Password:', :show=>'*')
 pd.hide('Apply')
 
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/pushbutton.rb b/ext/tk/sample/tkextlib/iwidgets/sample/pushbutton.rb
index 6e1c3fffe3..e76dda88c6 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/pushbutton.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/pushbutton.rb
@@ -2,8 +2,8 @@
 require 'tk'
 require 'tkextlib/iwidgets'
 
-Tk::Iwidgets::Pushbutton.new(:text=>'Hello', 
-                             :command=>proc{puts 'Hello World'}, 
+Tk::Iwidgets::Pushbutton.new(:text=>'Hello',
+                             :command=>proc{puts 'Hello World'},
                              :defaultring=>true).pack(:padx=>10, :pady=>10)
 
 Tk.mainloop
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/scrolledframe.rb b/ext/tk/sample/tkextlib/iwidgets/sample/scrolledframe.rb
index 5219847c9c..e5bd90a1cb 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/scrolledframe.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/scrolledframe.rb
@@ -2,7 +2,7 @@
 require 'tk'
 require 'tkextlib/iwidgets'
 
-sf = Tk::Iwidgets::Scrolledframe.new(:width=>150, :height=>180, 
+sf = Tk::Iwidgets::Scrolledframe.new(:width=>150, :height=>180,
                                      :labeltext=>'scrolledframe')
 cs = sf.child_site
 
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/scrolledhtml.rb b/ext/tk/sample/tkextlib/iwidgets/sample/scrolledhtml.rb
index 04334b8da8..2b675f802c 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/scrolledhtml.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/scrolledhtml.rb
@@ -4,7 +4,7 @@ require 'tkextlib/iwidgets'
 
 TkOption.add('*textBackground', 'white')
 
-sh = Tk::Iwidgets::Scrolledhtml.new(:fontname=>'helvetica', 
+sh = Tk::Iwidgets::Scrolledhtml.new(:fontname=>'helvetica',
                                     :linkcommand=>proc{|href|
                                       sh.import_link(href)
                                     })
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/scrolledlistbox.rb b/ext/tk/sample/tkextlib/iwidgets/sample/scrolledlistbox.rb
index 0b69751911..bf2c60191f 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/scrolledlistbox.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/scrolledlistbox.rb
@@ -4,13 +4,13 @@ require 'tkextlib/iwidgets'
 
 TkOption.add('*textBackground', 'white')
 
-slb = Tk::Iwidgets::Scrolledlistbox.new(:selectmode=>:single, 
+slb = Tk::Iwidgets::Scrolledlistbox.new(:selectmode=>:single,
                                         :vscrollmode=>:static,
                                         :hscrollmode=>:dynamic,
-                                        :labeltext=>'List', 
+                                        :labeltext=>'List',
                                         :selectioncommand=>proc{
                                           puts(slb.get_curselection)
-                                        }, 
+                                        },
                                         :dblclickcommand=>proc{
                                           puts('Double Click')
                                           puts(slb.get_curselection)
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/scrolledtext.rb b/ext/tk/sample/tkextlib/iwidgets/sample/scrolledtext.rb
index dd1a99a829..41498e67f7 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/scrolledtext.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/scrolledtext.rb
@@ -2,7 +2,7 @@
 require 'tk'
 require 'tkextlib/iwidgets'
 
-st = Tk::Iwidgets::Scrolledtext.new(:hscrollmode=>:dynamic, :wrap=>:none, 
+st = Tk::Iwidgets::Scrolledtext.new(:hscrollmode=>:dynamic, :wrap=>:none,
                                     :labeltext=>'Password File')
 st.pack(:expand=>true, :fill=>:both, :padx=>10, :pady=>10)
 
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/selectionbox.rb b/ext/tk/sample/tkextlib/iwidgets/sample/selectionbox.rb
index a5d623ae80..74684974b1 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/selectionbox.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/selectionbox.rb
@@ -4,12 +4,12 @@ require 'tkextlib/iwidgets'
 
 TkOption.add('*textBackground', 'white')
 
-sb = Tk::Iwidgets::Selectionbox.new.pack(:padx=>10, :pady=>10, 
+sb = Tk::Iwidgets::Selectionbox.new.pack(:padx=>10, :pady=>10,
                                          :fill=>:both, :expand=>true)
 
 sb.insert_items('end', *['Hello', 'Out There', 'World'])
 
-TkLabel.new(sb.child_site, 
+TkLabel.new(sb.child_site,
             :text=>'Child Site is Here').pack(:fill=>:x, :padx=>10, :pady=>10)
 
 sb.insert_items(2, 'Cruel Cruel')
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/selectiondialog.rb b/ext/tk/sample/tkextlib/iwidgets/sample/selectiondialog.rb
index f40b419180..d53391f2f3 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/selectiondialog.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/selectiondialog.rb
@@ -4,7 +4,7 @@ require 'tkextlib/iwidgets'
 
 mainloop = Thread.new{Tk.mainloop}
 
-TkButton.new(:text=>'QUIT', 
+TkButton.new(:text=>'QUIT',
              :command=>proc{Tk.root.destroy}).pack(:padx=>10, :pady=>10)
 
 Tk::Iwidgets::Selectiondialog.new.activate
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/shell.rb b/ext/tk/sample/tkextlib/iwidgets/sample/shell.rb
index c44b5554a6..6d01280141 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/shell.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/shell.rb
@@ -2,16 +2,16 @@
 require 'tk'
 require 'tkextlib/iwidgets'
 
-sh = Tk::Iwidgets::Shell.new(:modality=>:application, 
+sh = Tk::Iwidgets::Shell.new(:modality=>:application,
                              :padx=>20, :pady=>20, :title=>'Shell')
 
-TkButton.new(:text=>'ACTIVATE', :padx=>7, :pady=>7, 
+TkButton.new(:text=>'ACTIVATE', :padx=>7, :pady=>7,
              :command=>proc{puts sh.activate}).pack(:padx=>10, :pady=>10)
 
 TkLabel.new(sh.child_site, :text=>'SHELL').pack
-TkButton.new(sh.child_site, :text=>'YES', 
+TkButton.new(sh.child_site, :text=>'YES',
              :command=>proc{sh.deactivate 'press YES'}).pack(:fill=>:x)
-TkButton.new(sh.child_site, :text=>'NO', 
+TkButton.new(sh.child_site, :text=>'NO',
              :command=>proc{sh.deactivate 'press NO'}).pack(:fill=>:x)
 
 Tk.mainloop
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/spinint.rb b/ext/tk/sample/tkextlib/iwidgets/sample/spinint.rb
index 0bcdefb763..e2dde01b18 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/spinint.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/spinint.rb
@@ -4,7 +4,7 @@ require 'tkextlib/iwidgets'
 
 TkOption.add('*textBackground', 'white')
 
-Tk::Iwidgets::Spinint.new(:labeltext=>'Temperature', :labelpos=>:w, :width=>5, 
+Tk::Iwidgets::Spinint.new(:labeltext=>'Temperature', :labelpos=>:w, :width=>5,
                           :fixed=>true, :range=>[32, 212]).pack(:pady=>10)
 
 Tk.mainloop
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/spinner.rb b/ext/tk/sample/tkextlib/iwidgets/sample/spinner.rb
index 295d38ee96..6a20b0eb87 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/spinner.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/spinner.rb
@@ -18,10 +18,10 @@ class Spinner_demo < TkWindow
   end
 
   def initialize(parent=nil)
-    @spinner = Tk::Iwidgets::Spinner.new(parent, :labeltext=>'Month : ', 
-                                         :width=>10, :fixed=>10, 
-                                         :validate=>proc{|c| block_input}, 
-                                         :decrement=>proc{spin_month -1}, 
+    @spinner = Tk::Iwidgets::Spinner.new(parent, :labeltext=>'Month : ',
+                                         :width=>10, :fixed=>10,
+                                         :validate=>proc{|c| block_input},
+                                         :decrement=>proc{spin_month -1},
                                          :increment=>proc{spin_month 1})
     @path = @spinner
     @spinner.insert(0, Months[0])
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/tabnotebook.rb b/ext/tk/sample/tkextlib/iwidgets/sample/tabnotebook.rb
index 6f1ecc4fa4..382b34d3ce 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/tabnotebook.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/tabnotebook.rb
@@ -4,7 +4,7 @@ require 'tkextlib/iwidgets'
 
 # Create the tabnotebook widget and pack it.
 tn = Tk::Iwidgets::Tabnotebook.new(:width=>300, :height=>100)
-tn.pack(:anchor=>:nw, :fill=>:both, :expand=>true, 
+tn.pack(:anchor=>:nw, :fill=>:both, :expand=>true,
         :side=>:left, :padx=>10, :pady=>10)
 
 # Add two pages to the tabnotebook,
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/tabnotebook2.rb b/ext/tk/sample/tkextlib/iwidgets/sample/tabnotebook2.rb
index 4a5eef5a8f..2689759bde 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/tabnotebook2.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/tabnotebook2.rb
@@ -4,7 +4,7 @@ require 'tkextlib/iwidgets'
 
 # Create the tabnotebook widget and pack it.
 tn = Tk::Iwidgets::Tabnotebook.new(:width=>300, :height=>100)
-tn.pack(:anchor=>:nw, :fill=>:both, :expand=>true, 
+tn.pack(:anchor=>:nw, :fill=>:both, :expand=>true,
         :side=>:top, :padx=>10, :pady=>0)
 
 # Add two pages to the tabnotebook,
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/toolbar.rb b/ext/tk/sample/tkextlib/iwidgets/sample/toolbar.rb
index 355466eb1a..608efd0af1 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/toolbar.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/toolbar.rb
@@ -88,7 +88,7 @@ EOD
 
 ##########################################
 
-bmp_dir = File.join(File.dirname(File.expand_path(__FILE__)), 
+bmp_dir = File.join(File.dirname(File.expand_path(__FILE__)),
                     '../catalog_demo/images')
 
 ##########################################
@@ -102,16 +102,16 @@ tb = Tk::Iwidgets::Toolbar.new(:helpvariable=>status_var)
 
 ##########################################
 
-tb.add(:button, :helpstr=>'Copy It', :image=>editcopy22, 
+tb.add(:button, :helpstr=>'Copy It', :image=>editcopy22,
        :balloonstr=>'Copy', :command=>proc{puts 'Copy It'})
 
-tb.add(:button, :helpstr=>'Cut It', :image=>editcut22, 
+tb.add(:button, :helpstr=>'Cut It', :image=>editcut22,
        :balloonstr=>'Cut', :command=>proc{puts 'Cut It'})
 
-tb.add(:button, :helpstr=>'Paste It', :image=>editpaste22, 
+tb.add(:button, :helpstr=>'Paste It', :image=>editpaste22,
        :balloonstr=>'Paste', :command=>proc{puts 'Paste It'})
 
-tb.add(:button, :helpstr=>'Delete It', :image=>editdelete22, 
+tb.add(:button, :helpstr=>'Delete It', :image=>editdelete22,
        :balloonstr=>'Delete', :command=>proc{puts 'Delete It'})
 
 #--------------------------------
@@ -120,19 +120,19 @@ tb.add(:frame, :borderwidth=>1, :width=>10, :height=>10)
 
 #--------------------------------
 
-tb.add(:radiobutton, :variable=>radio_var, :value=>'Box', 
-       :bitmap=>"@#{bmp_dir}/box.xbm", 
-       :helpstr=>'Radio Button #1', :balloonstr=>'Radio', 
+tb.add(:radiobutton, :variable=>radio_var, :value=>'Box',
+       :bitmap=>"@#{bmp_dir}/box.xbm",
+       :helpstr=>'Radio Button #1', :balloonstr=>'Radio',
        :command=>proc{puts 'Radio Button "Box"'})
 
-tb.add(:radiobutton, :variable=>radio_var, :value=>'Line', 
-       :bitmap=>"@#{bmp_dir}/line.xbm", 
-       :helpstr=>'Radio Button #2', :balloonstr=>'Radio', 
+tb.add(:radiobutton, :variable=>radio_var, :value=>'Line',
+       :bitmap=>"@#{bmp_dir}/line.xbm",
+       :helpstr=>'Radio Button #2', :balloonstr=>'Radio',
        :command=>proc{puts 'Radio Button "Line"'})
 
-tb.add(:radiobutton, :variable=>radio_var, :value=>'Oval', 
-       :bitmap=>"@#{bmp_dir}/oval.xbm", 
-       :helpstr=>'Radio Button #3', :balloonstr=>'Radio', 
+tb.add(:radiobutton, :variable=>radio_var, :value=>'Oval',
+       :bitmap=>"@#{bmp_dir}/oval.xbm",
+       :helpstr=>'Radio Button #3', :balloonstr=>'Radio',
        :command=>proc{puts 'Radio Button "Oval"'})
 
 #--------------------------------
@@ -141,10 +141,10 @@ tb.add(:frame, :borderwidth=>1, :width=>10, :height=>10)
 
 #--------------------------------
 
-tb.add(:checkbutton, :variable=>check_var1, :onvalue=>'yes', :offvalue=>'no', 
+tb.add(:checkbutton, :variable=>check_var1, :onvalue=>'yes', :offvalue=>'no',
        :image=>text22, :command=>proc{puts 'Checkbutton 1'})
 
-tb.add(:checkbutton, :variable=>check_var2, :onvalue=>'yes', :offvalue=>'no', 
+tb.add(:checkbutton, :variable=>check_var2, :onvalue=>'yes', :offvalue=>'no',
        :bitmap=>"@#{bmp_dir}/points.xbm", :command=>proc{puts 'Checkbutton 2'})
 
 tb.pack(:side=>:top, :anchor=>:nw)
diff --git a/ext/tk/sample/tkextlib/iwidgets/sample/watch.rb b/ext/tk/sample/tkextlib/iwidgets/sample/watch.rb
index 808c798aec..2af53ba63b 100644
--- a/ext/tk/sample/tkextlib/iwidgets/sample/watch.rb
+++ b/ext/tk/sample/tkextlib/iwidgets/sample/watch.rb
@@ -8,7 +8,7 @@ Thread.new{
   trap('INT', 'DEFAULT')
 }
 
-Tk::Iwidgets::Watch.new(:state=>:disabled, :showampm=>:no, 
+Tk::Iwidgets::Watch.new(:state=>:disabled, :showampm=>:no,
                         :width=>155, :height=>155){|w|
   w.pack(:padx=>10, :pady=>10, :fill=>:both, :expand=>true)
   # TkTimer.new(1000, -1, proc{w.show; Tk.update}).start