9 files changed, 169 insertions, 169 deletions

diff --git a/lib/irb/ext/change-ws.rb b/lib/irb/ext/change-ws.rb
index ce921eb5e3..a5c243aaf3 100644
--- a/lib/irb/ext/change-ws.rb
+++ b/lib/irb/ext/change-ws.rb
@@ -15,9 +15,9 @@ module IRB # :nodoc:
     # Inherited from +TOPLEVEL_BINDING+.
     def home_workspace
       if defined? @home_workspace
-	@home_workspace
+        @home_workspace
       else
-	@home_workspace = @workspace
+        @home_workspace = @workspace
       end
     end
 
@@ -30,14 +30,14 @@ module IRB # :nodoc:
     # See IRB::WorkSpace.new for more information.
     def change_workspace(*_main)
       if _main.empty?
-	@workspace = home_workspace
-	return main
+        @workspace = home_workspace
+        return main
       end
 
       @workspace = WorkSpace.new(_main[0])
 
       if !(class<<main;ancestors;end).include?(ExtendCommandBundle)
-	main.extend ExtendCommandBundle
+        main.extend ExtendCommandBundle
       end
     end
 
diff --git a/lib/irb/ext/history.rb b/lib/irb/ext/history.rb
index 3239c57a6c..d991f4d33b 100644
--- a/lib/irb/ext/history.rb
+++ b/lib/irb/ext/history.rb
@@ -21,10 +21,10 @@ module IRB # :nodoc:
     def set_last_value(value)
       _set_last_value(value)
 
-#      @workspace.evaluate self, "_ = IRB.CurrentContext.last_value"
+      #      @workspace.evaluate self, "_ = IRB.CurrentContext.last_value"
       if @eval_history #and !@eval_history_values.equal?(llv)
- 	@eval_history_values.push @line_no, @last_value
- 	@workspace.evaluate self, "__ = IRB.CurrentContext.instance_eval{@eval_history_values}"
+        @eval_history_values.push @line_no, @last_value
+        @workspace.evaluate self, "__ = IRB.CurrentContext.instance_eval{@eval_history_values}"
       end
 
       @last_value
@@ -43,16 +43,16 @@ module IRB # :nodoc:
     # If +no+ is +nil+, execution result history isn't used (default).
     def eval_history=(no)
       if no
-	if defined?(@eval_history) && @eval_history
-	  @eval_history_values.size(no)
-	else
-	  @eval_history_values = History.new(no)
-	  IRB.conf[:__TMP__EHV__] = @eval_history_values
-	  @workspace.evaluate(self, "__ = IRB.conf[:__TMP__EHV__]")
-	  IRB.conf.delete(:__TMP_EHV__)
-	end
+        if defined?(@eval_history) && @eval_history
+          @eval_history_values.size(no)
+        else
+          @eval_history_values = History.new(no)
+          IRB.conf[:__TMP__EHV__] = @eval_history_values
+          @workspace.evaluate(self, "__ = IRB.conf[:__TMP__EHV__]")
+          IRB.conf.delete(:__TMP_EHV__)
+        end
       else
-	@eval_history_values = nil
+        @eval_history_values = nil
       end
       @eval_history = no
     end
@@ -68,20 +68,20 @@ module IRB # :nodoc:
 
     def size(size)
       if size != 0 && size < @size
-	@contents = @contents[@size - size .. @size]
+        @contents = @contents[@size - size .. @size]
       end
       @size = size
     end
 
     def [](idx)
       begin
-	if idx >= 0
-	  @contents.find{|no, val| no == idx}[1]
-	else
-	  @contents[idx][1]
-	end
+        if idx >= 0
+          @contents.find{|no, val| no == idx}[1]
+        else
+          @contents[idx][1]
+        end
       rescue NameError
-	nil
+        nil
       end
     end
 
@@ -94,22 +94,22 @@ module IRB # :nodoc:
 
     def inspect
       if @contents.empty?
-	return real_inspect
+        return real_inspect
       end
 
       unless (last = @contents.pop)[1].equal?(self)
-	@contents.push last
-	last = nil
+        @contents.push last
+        last = nil
       end
       str = @contents.collect{|no, val|
-	if val.equal?(self)
-	  "#{no} ...self-history..."
-	else
-	  "#{no} #{val.inspect}"
-	end
+        if val.equal?(self)
+          "#{no} ...self-history..."
+        else
+          "#{no} #{val.inspect}"
+        end
       }.join("\n")
       if str == ""
-	str = "Empty."
+        str = "Empty."
       end
       @contents.push last if last
       str
diff --git a/lib/irb/ext/loader.rb b/lib/irb/ext/loader.rb
index 6cdc8ec898..9edf02b1d0 100644
--- a/lib/irb/ext/loader.rb
+++ b/lib/irb/ext/loader.rb
@@ -33,14 +33,14 @@ module IRB # :nodoc:
 
     def search_file_from_ruby_path(fn) # :nodoc:
       if /^#{Regexp.quote(File::Separator)}/ =~ fn
-	return fn if File.exist?(fn)
-	return nil
+        return fn if File.exist?(fn)
+        return nil
       end
 
       for path in $:
-	if File.exist?(f = File.join(path, fn))
-	  return f
-	end
+        if File.exist?(f = File.join(path, fn))
+          return f
+        end
       end
       return nil
     end
@@ -50,20 +50,20 @@ module IRB # :nodoc:
     # See Irb#suspend_input_method for more information.
     def source_file(path)
       irb.suspend_name(path, File.basename(path)) do
-	irb.suspend_input_method(FileInputMethod.new(path)) do
-	  |back_io|
-	  irb.signal_status(:IN_LOAD) do
-	    if back_io.kind_of?(FileInputMethod)
-	      irb.eval_input
-	    else
-	      begin
-		irb.eval_input
-	      rescue LoadAbort
-		print "load abort!!\n"
-	      end
-	    end
-	  end
-	end
+        irb.suspend_input_method(FileInputMethod.new(path)) do
+          |back_io|
+          irb.signal_status(:IN_LOAD) do
+            if back_io.kind_of?(FileInputMethod)
+              irb.eval_input
+            else
+              begin
+                irb.eval_input
+              rescue LoadAbort
+                print "load abort!!\n"
+              end
+            end
+          end
+        end
       end
     end
 
@@ -73,28 +73,28 @@ module IRB # :nodoc:
     def load_file(path, priv = nil)
       irb.suspend_name(path, File.basename(path)) do
 
-	if priv
-	  ws = WorkSpace.new(Module.new)
-	else
-	  ws = WorkSpace.new
-	end
-	irb.suspend_workspace(ws) do
-	  irb.suspend_input_method(FileInputMethod.new(path)) do
-	    |back_io|
-	    irb.signal_status(:IN_LOAD) do
-#	      p irb.conf
-	      if back_io.kind_of?(FileInputMethod)
-		irb.eval_input
-	      else
-		begin
-		  irb.eval_input
-		rescue LoadAbort
-		  print "load abort!!\n"
-		end
-	      end
-	    end
-	  end
-	end
+        if priv
+          ws = WorkSpace.new(Module.new)
+        else
+          ws = WorkSpace.new
+        end
+        irb.suspend_workspace(ws) do
+          irb.suspend_input_method(FileInputMethod.new(path)) do
+            |back_io|
+            irb.signal_status(:IN_LOAD) do
+              #	      p irb.conf
+              if back_io.kind_of?(FileInputMethod)
+                irb.eval_input
+              else
+                begin
+                  irb.eval_input
+                rescue LoadAbort
+                  print "load abort!!\n"
+                end
+              end
+            end
+          end
+        end
       end
     end
 
@@ -104,25 +104,25 @@ module IRB # :nodoc:
       back_name = @irb_name
       back_scanner = @irb.scanner
       begin
- 	@io = FileInputMethod.new(path)
- 	@irb_name = File.basename(path)
-	@irb_path = path
-	@irb.signal_status(:IN_LOAD) do
-	  if back_io.kind_of?(FileInputMethod)
-	    @irb.eval_input
-	  else
-	    begin
-	      @irb.eval_input
-	    rescue LoadAbort
-	      print "load abort!!\n"
-	    end
-	  end
-	end
+        @io = FileInputMethod.new(path)
+        @irb_name = File.basename(path)
+        @irb_path = path
+        @irb.signal_status(:IN_LOAD) do
+          if back_io.kind_of?(FileInputMethod)
+            @irb.eval_input
+          else
+            begin
+              @irb.eval_input
+            rescue LoadAbort
+              print "load abort!!\n"
+            end
+          end
+        end
       ensure
- 	@io = back_io
- 	@irb_name = back_name
- 	@irb_path = back_path
-	@irb.scanner = back_scanner
+        @io = back_io
+        @irb_name = back_name
+        @irb_path = back_path
+        @irb.scanner = back_scanner
       end
     end
   end
diff --git a/lib/irb/ext/math-mode.rb b/lib/irb/ext/math-mode.rb
index 067eb1e7fa..01bd24a157 100644
--- a/lib/irb/ext/math-mode.rb
+++ b/lib/irb/ext/math-mode.rb
@@ -28,14 +28,14 @@ module IRB
     # more information.
     def math_mode=(opt)
       if @math_mode == true && !opt
-	IRB.fail CantReturnToNormalMode
-	return
+        IRB.fail CantReturnToNormalMode
+        return
       end
 
       @math_mode = opt
       if math_mode
-	main.extend Math
-	print "start math mode\n" if verbose?
+        main.extend Math
+        print "start math mode\n" if verbose?
       end
     end
 
diff --git a/lib/irb/ext/multi-irb.rb b/lib/irb/ext/multi-irb.rb
index e49a158fa3..b46aa5a1d8 100644
--- a/lib/irb/ext/multi-irb.rb
+++ b/lib/irb/ext/multi-irb.rb
@@ -258,22 +258,22 @@ module IRB
   class Irb
     def signal_handle
       unless @context.ignore_sigint?
-	print "\nabort!!\n" if @context.verbose?
-	exit
+        print "\nabort!!\n" if @context.verbose?
+        exit
       end
 
       case @signal_status
       when :IN_INPUT
-	print "^C\n"
-	IRB.JobManager.thread(self).raise RubyLex::TerminateLineInput
+        print "^C\n"
+        IRB.JobManager.thread(self).raise RubyLex::TerminateLineInput
       when :IN_EVAL
-	IRB.irb_abort(self)
+        IRB.irb_abort(self)
       when :IN_LOAD
-	IRB.irb_abort(self, LoadAbort)
+        IRB.irb_abort(self, LoadAbort)
       when :IN_IRB
-	# ignore
+        # ignore
       else
-	# ignore other cases as well
+        # ignore other cases as well
       end
     end
   end
diff --git a/lib/irb/ext/save-history.rb b/lib/irb/ext/save-history.rb
index 7b3fcbbeec..d2ea37f950 100644
--- a/lib/irb/ext/save-history.rb
+++ b/lib/irb/ext/save-history.rb
@@ -18,7 +18,7 @@ module IRB
   class Context
     def init_save_history# :nodoc:
       unless (class<<@io;self;end).include?(HistorySavingAbility)
-	@io.extend(HistorySavingAbility)
+        @io.extend(HistorySavingAbility)
       end
     end
 
@@ -39,9 +39,9 @@ module IRB
     def save_history=(val)
       IRB.conf[:SAVE_HISTORY] = val
       if val
-	main_context = IRB.conf[:MAIN_CONTEXT]
-	main_context = self unless main_context
-	main_context.init_save_history
+        main_context = IRB.conf[:MAIN_CONTEXT]
+        main_context = self unless main_context
+        main_context.init_save_history
       end
     end
 
@@ -83,37 +83,37 @@ module IRB
 
     def load_history
       if history_file = IRB.conf[:HISTORY_FILE]
-	history_file = File.expand_path(history_file)
+        history_file = File.expand_path(history_file)
       end
       history_file = IRB.rc_file("_history") unless history_file
       if File.exist?(history_file)
-	open(history_file) do |f|
-	  f.each {|l| HISTORY << l.chomp}
-	end
+        open(history_file) do |f|
+          f.each {|l| HISTORY << l.chomp}
+        end
       end
     end
 
     def save_history
       if num = IRB.conf[:SAVE_HISTORY] and (num = num.to_i) > 0
-	if history_file = IRB.conf[:HISTORY_FILE]
-	  history_file = File.expand_path(history_file)
-	end
-	history_file = IRB.rc_file("_history") unless history_file
+        if history_file = IRB.conf[:HISTORY_FILE]
+          history_file = File.expand_path(history_file)
+        end
+        history_file = IRB.rc_file("_history") unless history_file
 
-	# Change the permission of a file that already exists[BUG #7694]
-	begin
-	  if File.stat(history_file).mode & 066 != 0
-	    File.chmod(0600, history_file)
-	  end
-	rescue Errno::ENOENT
-	rescue
-	  raise
-	end
+        # Change the permission of a file that already exists[BUG #7694]
+        begin
+          if File.stat(history_file).mode & 066 != 0
+            File.chmod(0600, history_file)
+          end
+        rescue Errno::ENOENT
+        rescue
+          raise
+        end
 
-	open(history_file, 'w', 0600 ) do |f|
-	  hist = HISTORY.to_a
-	  f.puts(hist[-num..-1] || hist)
-	end
+        open(history_file, 'w', 0600 ) do |f|
+          hist = HISTORY.to_a
+          f.puts(hist[-num..-1] || hist)
+        end
       end
     end
   end
diff --git a/lib/irb/ext/tracer.rb b/lib/irb/ext/tracer.rb
index 8c9083dbad..c145cf5b4f 100644
--- a/lib/irb/ext/tracer.rb
+++ b/lib/irb/ext/tracer.rb
@@ -18,7 +18,7 @@ module IRB
     Tracer.add_filter {
       |event, file, line, id, binding, *rests|
       /^#{Regexp.quote(@CONF[:IRB_LIB_PATH])}/ !~ file and
-	File::basename(file) != "irb.rb"
+        File::basename(file) != "irb.rb"
     }
   end
 
@@ -35,12 +35,12 @@ module IRB
     # See +lib/tracer.rb+ for more information.
     def use_tracer=(opt)
       if opt
-	Tracer.set_get_line_procs(@irb_path) {
-	  |line_no, *rests|
-	  @io.line(line_no)
-	}
+        Tracer.set_get_line_procs(@irb_path) {
+          |line_no, *rests|
+          @io.line(line_no)
+        }
       elsif !opt && @use_tracer
-	Tracer.off
+        Tracer.off
       end
       @use_tracer=opt
     end
@@ -54,14 +54,14 @@ module IRB
     # See +lib/tracer.rb+ for more information.
     def evaluate(context, statements, file = nil, line = nil)
       if context.use_tracer? && file != nil && line != nil
-	Tracer.on
-	begin
-	  __evaluate__(context, statements, file, line)
-	ensure
-	  Tracer.off
-	end
+        Tracer.on
+        begin
+          __evaluate__(context, statements, file, line)
+        ensure
+          Tracer.off
+        end
       else
-	__evaluate__(context, statements, file || __FILE__, line || __LINE__)
+        __evaluate__(context, statements, file || __FILE__, line || __LINE__)
       end
     end
   end
diff --git a/lib/irb/ext/use-loader.rb b/lib/irb/ext/use-loader.rb
index 4e98f5b7a2..99e76b722f 100644
--- a/lib/irb/ext/use-loader.rb
+++ b/lib/irb/ext/use-loader.rb
@@ -49,20 +49,20 @@ module IRB
     def use_loader=(opt)
 
       if IRB.conf[:USE_LOADER] != opt
-	IRB.conf[:USE_LOADER] = opt
-	if opt
-	  if !$".include?("irb/cmd/load")
-	  end
-	  (class<<@workspace.main;self;end).instance_eval {
-	    alias_method :load, :irb_load
-	    alias_method :require, :irb_require
-	  }
-	else
-	  (class<<@workspace.main;self;end).instance_eval {
-	    alias_method :load, :__original__load__IRB_use_loader__
-	    alias_method :require, :__original__require__IRB_use_loader__
-	  }
-	end
+        IRB.conf[:USE_LOADER] = opt
+        if opt
+          if !$".include?("irb/cmd/load")
+          end
+          (class<<@workspace.main;self;end).instance_eval {
+            alias_method :load, :irb_load
+            alias_method :require, :irb_require
+          }
+        else
+          (class<<@workspace.main;self;end).instance_eval {
+            alias_method :load, :__original__load__IRB_use_loader__
+            alias_method :require, :__original__require__IRB_use_loader__
+          }
+        end
       end
       print "Switch to load/require#{unless use_loader; ' non';end} trace mode.\n" if verbose?
       opt
diff --git a/lib/irb/ext/workspaces.rb b/lib/irb/ext/workspaces.rb
index 641befbdf3..4237037271 100644
--- a/lib/irb/ext/workspaces.rb
+++ b/lib/irb/ext/workspaces.rb
@@ -20,9 +20,9 @@ module IRB # :nodoc:
     # WorkSpaces in the current stack
     def workspaces
       if defined? @workspaces
-	@workspaces
+        @workspaces
       else
-	@workspaces = []
+        @workspaces = []
       end
     end
 
@@ -33,20 +33,20 @@ module IRB # :nodoc:
     # information.
     def push_workspace(*_main)
       if _main.empty?
-	if workspaces.empty?
-	  print "No other workspace\n"
-	  return nil
-	end
-	ws = workspaces.pop
-	workspaces.push @workspace
-	@workspace = ws
-	return workspaces
+        if workspaces.empty?
+          print "No other workspace\n"
+          return nil
+        end
+        ws = workspaces.pop
+        workspaces.push @workspace
+        @workspace = ws
+        return workspaces
       end
 
       workspaces.push @workspace
       @workspace = WorkSpace.new(@workspace.binding, _main[0])
       if !(class<<main;ancestors;end).include?(ExtendCommandBundle)
-	main.extend ExtendCommandBundle
+        main.extend ExtendCommandBundle
       end
     end
 
@@ -56,8 +56,8 @@ module IRB # :nodoc:
     # Also, see #push_workspace.
     def pop_workspace
       if workspaces.empty?
-	print "workspace stack empty\n"
-	return
+        print "workspace stack empty\n"
+        return
       end
       @workspace = workspaces.pop
     end