* ext/tk/lib/tk/*: untabify

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7029 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

8 files changed, 226 insertions, 226 deletions

diff --git a/ext/tk/lib/tkextlib/tcllib/autoscroll.rb b/ext/tk/lib/tkextlib/tcllib/autoscroll.rb
index d0cb2812cb..34e34046c6 100644
--- a/ext/tk/lib/tkextlib/tcllib/autoscroll.rb
+++ b/ext/tk/lib/tkextlib/tcllib/autoscroll.rb
@@ -32,23 +32,23 @@ module Tk
   module Tcllib
     module Autoscroll
       def self.package_version
-	begin
-	  TkPackage.require('autoscroll')
-	rescue
-	  ''
-	end
+        begin
+          TkPackage.require('autoscroll')
+        rescue
+          ''
+        end
       end
 
       def self.not_available
-	fail RuntimeError, "'tkextlib/tcllib/autoscroll' extension is not available on your current environment."
+        fail RuntimeError, "'tkextlib/tcllib/autoscroll' extension is not available on your current environment."
       end
 
       def self.autoscroll(win)
-	Tk::Tcllib::Autoscroll.not_available
+        Tk::Tcllib::Autoscroll.not_available
       end
 
       def self.unautoscroll(win)
-	Tk::Tcllib::Autoscroll.not_available
+        Tk::Tcllib::Autoscroll.not_available
       end
     end
   end
@@ -59,44 +59,44 @@ module Tk
     def autoscroll(mode = nil)
       case mode
       when :x, 'x'
-	if @xscrollbar
-	  Tk::Tcllib::Autoscroll.autoscroll(@xscrollbar)
-	end
+        if @xscrollbar
+          Tk::Tcllib::Autoscroll.autoscroll(@xscrollbar)
+        end
       when :y, 'y'
-	if @yscrollbar
-	  Tk::Tcllib::Autoscroll.autoscroll(@yscrollbar)
-	end
+        if @yscrollbar
+          Tk::Tcllib::Autoscroll.autoscroll(@yscrollbar)
+        end
       when nil, :both, 'both'
-	if @xscrollbar
-	  Tk::Tcllib::Autoscroll.autoscroll(@xscrollbar)
-	end
-	if @yscrollbar
-	  Tk::Tcllib::Autoscroll.autoscroll(@yscrollbar)
-	end
+        if @xscrollbar
+          Tk::Tcllib::Autoscroll.autoscroll(@xscrollbar)
+        end
+        if @yscrollbar
+          Tk::Tcllib::Autoscroll.autoscroll(@yscrollbar)
+        end
       else
-	fail ArgumentError, "'x', 'y' or 'both' (String or Symbol) is expected"
+        fail ArgumentError, "'x', 'y' or 'both' (String or Symbol) is expected"
       end
       self
     end
     def unautoscroll(mode = nil)
       case mode
       when :x, 'x'
-	if @xscrollbar
-	  Tk::Tcllib::Autoscroll.unautoscroll(@xscrollbar)
-	end
+        if @xscrollbar
+          Tk::Tcllib::Autoscroll.unautoscroll(@xscrollbar)
+        end
       when :y, 'y'
-	if @yscrollbar
-	  Tk::Tcllib::Autoscroll.unautoscroll(@yscrollbar)
-	end
+        if @yscrollbar
+          Tk::Tcllib::Autoscroll.unautoscroll(@yscrollbar)
+        end
       when nil, :both, 'both'
-	if @xscrollbar
-	  Tk::Tcllib::Autoscroll.unautoscroll(@xscrollbar)
-	end
-	if @yscrollbar
-	  Tk::Tcllib::Autoscroll.unautoscroll(@yscrollbar)
-	end
+        if @xscrollbar
+          Tk::Tcllib::Autoscroll.unautoscroll(@xscrollbar)
+        end
+        if @yscrollbar
+          Tk::Tcllib::Autoscroll.unautoscroll(@yscrollbar)
+        end
       else
-	fail ArgumentError, "'x', 'y' or 'both' (String or Symbol) is expected"
+        fail ArgumentError, "'x', 'y' or 'both' (String or Symbol) is expected"
       end
       self
     end
@@ -130,11 +130,11 @@ module Tk
 
     module Autoscroll
       def self.autoscroll(win)
-	tk_call_without_enc('::autoscroll::autoscroll', win.path)
+        tk_call_without_enc('::autoscroll::autoscroll', win.path)
       end
 
       def self.unautoscroll(win)
-	tk_call_without_enc('::autoscroll::unautoscroll', win.path)
+        tk_call_without_enc('::autoscroll::unautoscroll', win.path)
       end
     end
   end
diff --git a/ext/tk/lib/tkextlib/tcllib/ctext.rb b/ext/tk/lib/tkextlib/tcllib/ctext.rb
index 0a043b1730..89bfeff0f3 100644
--- a/ext/tk/lib/tkextlib/tcllib/ctext.rb
+++ b/ext/tk/lib/tkextlib/tcllib/ctext.rb
@@ -17,11 +17,11 @@ module Tk
   module Tcllib
     class CText < TkText
       def self.package_version
-	begin
-	  TkPackage.require('ctext')
-	rescue
-	  ''
-	end
+        begin
+          TkPackage.require('ctext')
+        rescue
+          ''
+        end
       end
     end
   end
@@ -80,19 +80,19 @@ class Tk::Tcllib::CText
 
   def add_highlight_class_for_special_chars(klass, col, *chrs)
     tk_call('ctext::addHighlightClassForSpecialChars', 
-	    @path, klass, col, chrs.join(''))
+            @path, klass, col, chrs.join(''))
     self
   end
 
   def add_highlight_class_for_regexp(klass, col, tcl_regexp)
     tk_call('ctext::addHighlightClassForRegexp', 
-	    @path, klass, col, tcl_regexp)
+            @path, klass, col, tcl_regexp)
     self
   end
 
   def add_highlight_class_with_only_char_start(klass, col, chr)
     tk_call('ctext::addHighlightClassWithOnlyCharStart', 
-	    @path, klass, col, chr)
+            @path, klass, col, chr)
     self
   end
 
diff --git a/ext/tk/lib/tkextlib/tcllib/cursor.rb b/ext/tk/lib/tkextlib/tcllib/cursor.rb
index 8813aa05dd..cbe1e2f1be 100644
--- a/ext/tk/lib/tkextlib/tcllib/cursor.rb
+++ b/ext/tk/lib/tkextlib/tcllib/cursor.rb
@@ -13,27 +13,27 @@ module Tk
   module Tcllib
     module Cursor
       def self.package_version
-	begin
-	  TkPackage.require('cursor')
-	rescue
-	  ''
-	end
+        begin
+          TkPackage.require('cursor')
+        rescue
+          ''
+        end
       end
 
       def self.not_available
-	fail RuntimeError, "'tkextlib/tcllib/cursor' extension is not available on your current environment."
+        fail RuntimeError, "'tkextlib/tcllib/cursor' extension is not available on your current environment."
       end
 
       def self.cursor_display(win=None)
-	Tk::Tcllib::Cursor.not_available
+        Tk::Tcllib::Cursor.not_available
       end
 
       def self.cursor_propagate(win, cursor)
-	Tk::Tcllib::Cursor.not_available
+        Tk::Tcllib::Cursor.not_available
       end
 
       def self.cursor_restore(win, cursor = None)
-	Tk::Tcllib::Cursor.not_available
+        Tk::Tcllib::Cursor.not_available
       end
     end
   end
@@ -74,15 +74,15 @@ module Tk
 
     module Cursor
       def self.cursor_display(win=None)
-	tk_call_without_enc('::cursor::display', win)
+        tk_call_without_enc('::cursor::display', win)
       end
 
       def self.cursor_propagate(win, cursor)
-	tk_call_without_enc('::cursor::propagate', win.path, cursor)
+        tk_call_without_enc('::cursor::propagate', win.path, cursor)
       end
 
       def self.cursor_restore(win, cursor = None)
-	tk_call_without_enc('::cursor::restore', win.path, cursor)
+        tk_call_without_enc('::cursor::restore', win.path, cursor)
       end
     end
   end
diff --git a/ext/tk/lib/tkextlib/tcllib/datefield.rb b/ext/tk/lib/tkextlib/tcllib/datefield.rb
index 4d80b06866..1d029e4569 100644
--- a/ext/tk/lib/tkextlib/tcllib/datefield.rb
+++ b/ext/tk/lib/tkextlib/tcllib/datefield.rb
@@ -26,11 +26,11 @@ module Tk
   module Tcllib
     class Datefield < TkEntry
       def self.package_version
-	begin
-	  TkPackage.require('datefield')
-	rescue
-	  ''
-	end
+        begin
+          TkPackage.require('datefield')
+        rescue
+          ''
+        end
       end
     end
     DateField = Datefield
@@ -43,7 +43,7 @@ class Tk::Tcllib::Datefield
   def create_self(keys)
     if keys and keys != None
       tk_call_without_enc('::datefield::datefield', @path, 
-			  *hash_kv(keys, true))
+                          *hash_kv(keys, true))
     else
       tk_call_without_enc('::datefield::datefield', @path)
     end
diff --git a/ext/tk/lib/tkextlib/tcllib/ip_entry.rb b/ext/tk/lib/tkextlib/tcllib/ip_entry.rb
index 977ef4e5c8..da9f1eb3a8 100644
--- a/ext/tk/lib/tkextlib/tcllib/ip_entry.rb
+++ b/ext/tk/lib/tkextlib/tcllib/ip_entry.rb
@@ -20,11 +20,11 @@ module Tk
   module Tcllib
     class IP_Entry < TkEntry
       def self.package_version
-	begin
-	  TkPackage.require('ipentry')
-	rescue
-	  ''
-	end
+        begin
+          TkPackage.require('ipentry')
+        rescue
+          ''
+        end
       end
     end
     IPEntry = IP_Entry
diff --git a/ext/tk/lib/tkextlib/tcllib/plotchart.rb b/ext/tk/lib/tkextlib/tcllib/plotchart.rb
index 65451a27a9..86327ceff0 100644
--- a/ext/tk/lib/tkextlib/tcllib/plotchart.rb
+++ b/ext/tk/lib/tkextlib/tcllib/plotchart.rb
@@ -67,11 +67,11 @@ module Tk
   module Tcllib
     module Plotchart
       def self.package_version
-	begin
-	  TkPackage.require('Plotchart')
-	rescue
-	  ''
-	end
+        begin
+          TkPackage.require('Plotchart')
+        rescue
+          ''
+        end
       end
     end
   end
@@ -85,13 +85,13 @@ module Tk::Tcllib::Plotchart
 
   def self.world_coordinates(w, *args) # args := xmin, ymin, xmax, ymax
     tk_call_without_enc('::Plotchart::worldCoordinates', 
-			w.path, *(args.flatten))
+                        w.path, *(args.flatten))
   end
 
   def self.world_3D_coordinates(w, *args) 
     # args := xmin, ymin, zmin, xmax, ymax, zmax
     tk_call_without_enc('::Plotchart::world3DCoordinates', 
-			w.path, *(args.flatten))
+                        w.path, *(args.flatten))
   end
 
   def self.coords_to_pixel(w, x, y)
@@ -148,20 +148,20 @@ module Tk::Tcllib::Plotchart
 
     def xconfig(key, value=None)
       if key.kind_of?(Hash)
-	tk_call_without_enc(@chart, 'xconfig', *hash_kv(key, true))
+        tk_call_without_enc(@chart, 'xconfig', *hash_kv(key, true))
       else
-	tk_call_without_enc(@chart, 'xconfig', 
-			    "-#{key}", _get_eval_enc_str(value))
+        tk_call_without_enc(@chart, 'xconfig', 
+                            "-#{key}", _get_eval_enc_str(value))
       end
       self
     end
 
     def yconfig(key, value=None)
       if key.kind_of?(Hash)
-	tk_call_without_enc(@chart, 'yconfig', *hash_kv(key, true))
+        tk_call_without_enc(@chart, 'yconfig', *hash_kv(key, true))
       else
-	tk_call_without_enc(@chart, 'yconfig', 
-			    "-#{key}", _get_eval_enc_str(value))
+        tk_call_without_enc(@chart, 'yconfig', 
+                            "-#{key}", _get_eval_enc_str(value))
       end
       self
     end
@@ -174,14 +174,14 @@ module Tk::Tcllib::Plotchart
 
     def world_coordinates(*args) # args := xmin, ymin, xmax, ymax
       tk_call_without_enc('::Plotchart::worldCoordinates', 
-			  @path, *(args.flatten))
+                          @path, *(args.flatten))
       self
     end
 
     def world_3D_coordinates(*args) 
       # args := xmin, ymin, zmin, xmax, ymax, zmax
       tk_call_without_enc('::Plotchart::world3DCoordinates', 
-			  @path, *(args.flatten))
+                          @path, *(args.flatten))
       self
     end
 
@@ -230,21 +230,21 @@ module Tk::Tcllib::Plotchart
                           # xaxis := Array of [minimum, maximum, stepsize]
                           # yaxis := Array of [minimum, maximum, stepsize]
       if args[0].kind_of?(Array)
-	@xaxis = args.shift
-	@yaxis = args.shift
+        @xaxis = args.shift
+        @yaxis = args.shift
 
-	super(*args) # create canvas widget
+        super(*args) # create canvas widget
       else
-	parent = args.shift
+        parent = args.shift
 
-	@xaxis = args.shift
-	@yaxis = args.shift
+        @xaxis = args.shift
+        @yaxis = args.shift
 
-	if parent.kind_of?(TkCanvas)
-	  @path = parent.path
-	else
-	  super(parent, *args) # create canvas widget
-	end
+        if parent.kind_of?(TkCanvas)
+          @path = parent.path
+        else
+          super(parent, *args) # create canvas widget
+        end
       end
 
       @chart = _create_chart
@@ -253,7 +253,7 @@ module Tk::Tcllib::Plotchart
     def _create_chart
       p self.class::TkCommandNames[1] if $DEBUG
       tk_call_without_enc(self.class::TkCommandNames[1], @path, 
-			  array2tk_list(@xaxis), array2tk_list(@yaxis))
+                          array2tk_list(@xaxis), array2tk_list(@yaxis))
     end
     private :_create_chart
 
@@ -268,10 +268,10 @@ module Tk::Tcllib::Plotchart
 
     def dataconfig(series, key, value=None)
       if key.kind_of?(Hash)
-	tk_call_without_enc(@chart, 'dataconfig', series, *hash_kv(key, true))
+        tk_call_without_enc(@chart, 'dataconfig', series, *hash_kv(key, true))
       else
-	tk_call_without_enc(@chart, 'dataconfig', series, 
-			    "-#{key}", _get_eval_enc_str(value))
+        tk_call_without_enc(@chart, 'dataconfig', series, 
+                            "-#{key}", _get_eval_enc_str(value))
       end
     end
   end
@@ -296,19 +296,19 @@ module Tk::Tcllib::Plotchart
     def initialize(*args) # args := ([parent,] radius_data [, keys])
                           # radius_data := Array of [maximum_radius, stepsize]
       if args[0].kind_of?(Array)
-	@radius_data = args.shift
+        @radius_data = args.shift
 
-	super(*args) # create canvas widget
+        super(*args) # create canvas widget
       else
-	parent = args.shift
+        parent = args.shift
 
-	@radius_data = args.shift
+        @radius_data = args.shift
 
-	if parent.kind_of?(TkCanvas)
-	  @path = parent.path
-	else
-	  super(parent, *args) # create canvas widget
-	end
+        if parent.kind_of?(TkCanvas)
+          @path = parent.path
+        else
+          super(parent, *args) # create canvas widget
+        end
       end
 
       @chart = _create_chart
@@ -317,7 +317,7 @@ module Tk::Tcllib::Plotchart
     def _create_chart
       p self.class::TkCommandNames[1] if $DEBUG
       tk_call_without_enc(self.class::TkCommandNames[1], @path, 
-			  array2tk_list(@radius_data))
+                          array2tk_list(@radius_data))
     end
     private :_create_chart
 
@@ -327,16 +327,16 @@ module Tk::Tcllib::Plotchart
 
     def plot(series, radius, angle)
       tk_call_without_enc(@chart, 'plot', _get_eval_enc_str(series), 
-			  radius, angle)
+                          radius, angle)
       self
     end
 
     def dataconfig(series, key, value=None)
       if key.kind_of?(Hash)
-	tk_call_without_enc(@chart, 'dataconfig', series, *hash_kv(key, true))
+        tk_call_without_enc(@chart, 'dataconfig', series, *hash_kv(key, true))
       else
-	tk_call_without_enc(@chart, 'dataconfig', series, 
-			    "-#{key}", _get_eval_enc_str(value))
+        tk_call_without_enc(@chart, 'dataconfig', series, 
+                            "-#{key}", _get_eval_enc_str(value))
       end
     end
   end
@@ -356,33 +356,33 @@ module Tk::Tcllib::Plotchart
                           # yaxis := Array of [minimum, maximum]
                           # step := Float of stepsize | "noaxes" | :noaxes
       if args[0].kind_of?(Array)
-	@xaxis = args.shift
-	@yaxis = args.shift
+        @xaxis = args.shift
+        @yaxis = args.shift
 
-	if args[0].kind_of?(Hash)
-	  @stepsize = :noaxes
-	else
-	  @stepsize = args.shift
-	end
+        if args[0].kind_of?(Hash)
+          @stepsize = :noaxes
+        else
+          @stepsize = args.shift
+        end
 
-	super(*args) # create canvas widget
+        super(*args) # create canvas widget
       else
-	parent = args.shift
-
-	@xaxis = args.shift
-	@yaxis = args.shift
-
-	if args[0].kind_of?(Hash)
-	  @stepsize = :noaxes
-	else
-	  @stepsize = args.shift
-	end
-
-	if parent.kind_of?(TkCanvas)
-	  @path = parent.path
-	else
-	  super(parent, *args) # create canvas widget
-	end
+        parent = args.shift
+
+        @xaxis = args.shift
+        @yaxis = args.shift
+
+        if args[0].kind_of?(Hash)
+          @stepsize = :noaxes
+        else
+          @stepsize = args.shift
+        end
+
+        if parent.kind_of?(TkCanvas)
+          @path = parent.path
+        else
+          super(parent, *args) # create canvas widget
+        end
       end
 
       @chart = _create_chart
@@ -391,8 +391,8 @@ module Tk::Tcllib::Plotchart
     def _create_chart
       p self.class::TkCommandNames[1] if $DEBUG
       tk_call_without_enc(self.class::TkCommandNames[1], @path, 
-			  array2tk_list(@xaxis), array2tk_list(@yaxis), 
-			  @stepsize)
+                          array2tk_list(@xaxis), array2tk_list(@yaxis), 
+                          @stepsize)
     end
     private :_create_chart
 
@@ -436,23 +436,23 @@ module Tk::Tcllib::Plotchart
                           # yaxis := Array of [minimum, maximum, stepsize]
                           # zaxis := Array of [minimum, maximum, stepsize]
       if args[0].kind_of?(Array)
-	@xaxis = args.shift
-	@yaxis = args.shift
-	@zaxis = args.shift
+        @xaxis = args.shift
+        @yaxis = args.shift
+        @zaxis = args.shift
 
-	super(*args) # create canvas widget
+        super(*args) # create canvas widget
       else
-	parent = args.shift
+        parent = args.shift
 
-	@xaxis = args.shift
-	@yaxis = args.shift
-	@zaxis = args.shift
+        @xaxis = args.shift
+        @yaxis = args.shift
+        @zaxis = args.shift
 
-	if parent.kind_of?(TkCanvas)
-	  @path = parent.path
-	else
-	  super(parent, *args) # create canvas widget
-	end
+        if parent.kind_of?(TkCanvas)
+          @path = parent.path
+        else
+          super(parent, *args) # create canvas widget
+        end
       end
 
       @chart = _create_chart
@@ -461,9 +461,9 @@ module Tk::Tcllib::Plotchart
     def _create_chart
       p self.class::TkCommandNames[1] if $DEBUG
       tk_call_without_enc(self.class::TkCommandNames[1], @path, 
-			  array2tk_list(@xaxis), 
-			  array2tk_list(@yaxis), 
-			  array2tk_list(@zaxis))
+                          array2tk_list(@xaxis), 
+                          array2tk_list(@yaxis), 
+                          array2tk_list(@zaxis))
     end
     private :_create_chart
 
@@ -508,10 +508,10 @@ module Tk::Tcllib::Plotchart
 
     def initialize(*args) # args := ([parent] [, keys])
       if args[0].kind_of?(TkCanvas)
-	parent = args.shift
-	@path = parent.path
+        parent = args.shift
+        @path = parent.path
       else
-	super(*args) # create canvas widget
+        super(*args) # create canvas widget
       end
       @chart = _create_chart
     end
@@ -545,33 +545,33 @@ module Tk::Tcllib::Plotchart
       # axis := Array of [minimum, maximum, stepsize]
       # series := Integer number of data series | 'stacked' | :stacked
       if args[0].kind_of?(Array)
-	@xlabels = args.shift
-	@ylabels  = args.shift
+        @xlabels = args.shift
+        @ylabels  = args.shift
 
-	if args[0].kind_of?(Hash)
-	  @series_size = :stacked
-	else
-	  @series_size  = args.shift
-	end
+        if args[0].kind_of?(Hash)
+          @series_size = :stacked
+        else
+          @series_size  = args.shift
+        end
 
-	super(*args) # create canvas widget
+        super(*args) # create canvas widget
       else
-	parent = args.shift
-
-	@xlabels = args.shift
-	@ylabels = args.shift
-
-	if args[0].kind_of?(Hash)
-	  @series_size = :stacked
-	else
-	  @series_size  = args.shift
-	end
-
-	if parent.kind_of?(TkCanvas)
-	  @path = parent.path
-	else
-	  super(parent, *args) # create canvas widget
-	end
+        parent = args.shift
+
+        @xlabels = args.shift
+        @ylabels = args.shift
+
+        if args[0].kind_of?(Hash)
+          @series_size = :stacked
+        else
+          @series_size  = args.shift
+        end
+
+        if parent.kind_of?(TkCanvas)
+          @path = parent.path
+        else
+          super(parent, *args) # create canvas widget
+        end
       end
 
       @chart = _create_chart
@@ -580,8 +580,8 @@ module Tk::Tcllib::Plotchart
     def _create_chart
       p self.class::TkCommandNames[1] if $DEBUG
       tk_call_without_enc(self.class::TkCommandNames[1], @path, 
-			  array2tk_list(@xlabels), array2tk_list(@ylabels), 
-			  @series_size)
+                          array2tk_list(@xlabels), array2tk_list(@ylabels), 
+                          @series_size)
     end
     private :_create_chart
 
@@ -628,23 +628,23 @@ module Tk::Tcllib::Plotchart
       # items := Expected/maximum number of items
       #          ( This determines the vertical spacing. )
       if args[0].kind_of?(Array)
-	@time_begin = args.shift
-	@time_end   = args.shift
-	@items      = args.shift
+        @time_begin = args.shift
+        @time_end   = args.shift
+        @items      = args.shift
 
-	super(*args) # create canvas widget
+        super(*args) # create canvas widget
       else
-	parent = args.shift
+        parent = args.shift
 
-	@time_begin = args.shift
-	@time_end   = args.shift
-	@items      = args.shift
+        @time_begin = args.shift
+        @time_end   = args.shift
+        @items      = args.shift
 
-	if parent.kind_of?(TkCanvas)
-	  @path = parent.path
-	else
-	  super(parent, *args) # create canvas widget
-	end
+        if parent.kind_of?(TkCanvas)
+          @path = parent.path
+        else
+          super(parent, *args) # create canvas widget
+        end
       end
 
       @chart = _create_chart
@@ -653,7 +653,7 @@ module Tk::Tcllib::Plotchart
     def _create_chart
       p self.class::TkCommandNames[1] if $DEBUG
       tk_call_without_enc(self.class::TkCommandNames[1], @path, 
-			  @time_begin, @time_end, @items)
+                          @time_begin, @time_end, @items)
     end
     private :_create_chart
 
diff --git a/ext/tk/lib/tkextlib/tcllib/style.rb b/ext/tk/lib/tkextlib/tcllib/style.rb
index 17fc834ccb..9fc4e92329 100644
--- a/ext/tk/lib/tkextlib/tcllib/style.rb
+++ b/ext/tk/lib/tkextlib/tcllib/style.rb
@@ -13,9 +13,9 @@ module Tk::Tcllib
   module Style
     def self.package_version
       begin
-	TkPackage.require('style')
+        TkPackage.require('style')
       rescue
-	''
+        ''
       end
     end
 
diff --git a/ext/tk/lib/tkextlib/tcllib/tkpiechart.rb b/ext/tk/lib/tkextlib/tcllib/tkpiechart.rb
index 4665edca7e..4e6008bb3b 100644
--- a/ext/tk/lib/tkextlib/tcllib/tkpiechart.rb
+++ b/ext/tk/lib/tkextlib/tcllib/tkpiechart.rb
@@ -48,7 +48,7 @@ module Tk::Tcllib::Tkpiechart
 
     def __configinfo_struct
       {:key=>0, :alias=>nil, :db_name=>nil, :db_class=>nil, 
-	:default_value=>1, :current_value=>2}
+        :default_value=>1, :current_value=>2}
     end
     private :__configinfo_struct
   end
@@ -69,10 +69,10 @@ module Tk::Tcllib::Tkpiechart
 
     def create_self(x, y, width, height, keys=None)
       if keys and keys != None
-	@tag_key = tk_call_without_enc('::stooop::new', 'pie', 
-				       @c, x, y, *hash_kv(keys, true))
+        @tag_key = tk_call_without_enc('::stooop::new', 'pie', 
+                                       @c, x, y, *hash_kv(keys, true))
       else
-	@tag_key = tk_call_without_enc('::stooop::new', 'pie', @c, x, y)
+        @tag_key = tk_call_without_enc('::stooop::new', 'pie', @c, x, y)
       end
 
       @slice_tbl = {}
@@ -114,20 +114,20 @@ module Tk::Tcllib::Tkpiechart
 
     def delete_slice(slice)
       unless slice.kind_of?(Slice)
-	unless (slice = @slice_tbl[slice])
-	  return tk_call_without_enc('pie::deleteSlice', @tag_key, slice)
-	end
+        unless (slice = @slice_tbl[slice])
+          return tk_call_without_enc('pie::deleteSlice', @tag_key, slice)
+        end
       end
       unless slice.kind_of?(Slice) && slice.pie == self
-	fail ArgumentError, "argument is not a slice of self"
+        fail ArgumentError, "argument is not a slice of self"
       end
       slice.delete
     end
 
     def selected_slices
       tk_split_simplelist(tk_call_without_enc('pie::selectedSlices', 
-					      @tag_key)).collect{|slice|
-	@slice_tbl[slice] || Slice.new(:no_create, self, slice)
+                                              @tag_key)).collect{|slice|
+        @slice_tbl[slice] || Slice.new(:no_create, self, slice)
       }
     end
   end
@@ -145,15 +145,15 @@ module Tk::Tcllib::Tkpiechart
 
     def initialize(pie, *args)
       unless pie.kind_of?(Pie) && pie != :no_create
-	fail ArgumentError, "expects TkPiechart::Pie for 1st argument"
+        fail ArgumentError, "expects TkPiechart::Pie for 1st argument"
       end
 
       if pie == :no_create
-	@pie, @tag_key = args
+        @pie, @tag_key = args
       else
-	text = args[0] || None
-	@pie = pie
-	@tag_key = tk_call_without_enc('pie::newSlice', @pie.tag_key, text)
+        text = args[0] || None
+        @pie = pie
+        @tag_key = tk_call_without_enc('pie::newSlice', @pie.tag_key, text)
       end
       @parent = @c = @pie.canvas
       @path = @parent.path
@@ -186,7 +186,7 @@ module Tk::Tcllib::Tkpiechart
 
     def size(share, disp=None)
       tk_call_without_enc('pie::sizeSlice', 
-			  @pie.tag_key, @tag_key, share, disp)
+                          @pie.tag_key, @tag_key, share, disp)
       self
     end
 
@@ -209,10 +209,10 @@ module Tk::Tcllib::Tkpiechart
 
     def create_self(keys=None)
       if keys and keys != None
-	@tag_key = tk_call_without_enc('::stooop::new', 'pieBoxLabeler', 
-				       *hash_kv(keys, true))
+        @tag_key = tk_call_without_enc('::stooop::new', 'pieBoxLabeler', 
+                                       *hash_kv(keys, true))
       else
-	@tag_key = tk_call_without_enc('::stooop::new', 'pieBoxLabeler')
+        @tag_key = tk_call_without_enc('::stooop::new', 'pieBoxLabeler')
       end
 
       id = "pieBoxLabeler(#{@tag_key})"
@@ -241,11 +241,11 @@ module Tk::Tcllib::Tkpiechart
 
     def create_self(keys=None)
       if keys and keys != None
-	@tag_key = tk_call_without_enc('::stooop::new', 
-				       'piePeripheralLabeler', 
-				       *hash_kv(keys, true))
+        @tag_key = tk_call_without_enc('::stooop::new', 
+                                       'piePeripheralLabeler', 
+                                       *hash_kv(keys, true))
       else
-	@tag_key = tk_call_without_enc('::stooop::new', 'piePeripheralLabeler')
+        @tag_key = tk_call_without_enc('::stooop::new', 'piePeripheralLabeler')
       end
 
       id = "piePeripheralLabeler(#{@tag_key})"
@@ -269,12 +269,12 @@ module Tk::Tcllib::Tkpiechart
 
     def create_self(x, y, keys=None)
       if keys and keys != None
-	@tag_key = tk_call_without_enc('::stooop::new', 'canvasLabel', 
-				       @c, x, y, width, height, 
-				       *hash_kv(keys, true))
+        @tag_key = tk_call_without_enc('::stooop::new', 'canvasLabel', 
+                                       @c, x, y, width, height, 
+                                       *hash_kv(keys, true))
       else
-	@tag_key = tk_call_without_enc('::stooop::new', 'canvasLabel', 
-				       @c, x, y, width, height)
+        @tag_key = tk_call_without_enc('::stooop::new', 'canvasLabel', 
+                                       @c, x, y, width, height)
       end
 
       id = "canvasLabel(#{@tag_key})"