v5 v6: indent spaces, minor

14 files changed, 364 insertions, 340 deletions

diff --git a/lib/sisu/v5/digests.rb b/lib/sisu/v5/digests.rb
index 6cea7c3e..06851739 100644
--- a/lib/sisu/v5/digests.rb
+++ b/lib/sisu/v5/digests.rb
@@ -134,6 +134,9 @@ module SiSU_DigestView
         supplementary
         output
       end
+      def spaces
+        Ax[:spaces]
+      end
       def description(f,e='')
         puts f + e.to_s if @md.opt.act[:verbose_plus][:set]==:on
         @@description << f << e
@@ -234,19 +237,19 @@ module SiSU_DigestView
           if t_o.is==:heading
             x=case t_o.ln
             when 0 then l[0] +=1
-              '  '*0 << ':A'
+              spaces*0 << ':A'
             when 1 then l[1] +=1
-              '  '*1 << ':B'
+              spaces*1 << ':B'
             when 2 then l[2] +=1
-              '  '*2 << ':C'
+              spaces*2 << ':C'
             when 3 then l[3] +=1
-              '  '*3 << ':D'
+              spaces*3 << ':D'
             when 4 then l[4] +=1
-              '  '*4 << '1'
+              spaces*4 << '1'
             when 5 then l[5] +=1
-              '  '*5 << '2'
+              spaces*5 << '2'
             when 6 then l[6] +=1
-              '  '*6 << '3'
+              spaces*6 << '3'
             else nil
             end
           end
diff --git a/lib/sisu/v5/harvest_topics.rb b/lib/sisu/v5/harvest_topics.rb
index aeca5246..09739200 100644
--- a/lib/sisu/v5/harvest_topics.rb
+++ b/lib/sisu/v5/harvest_topics.rb
@@ -97,6 +97,11 @@ module SiSU_HarvestTopics
       SiSU_HarvestTopics::OutputIndex.new(@opt,the_hash).html_print.html_songsheet
     end
   end
+  class Mix
+    def spaces
+      Ax[:spaces]
+    end
+  end
   class Harvest
     def initialize(opt,env,data,filename,name,idx_array,lang)
       @opt,@env,@data,@filename,@name,@idx_array,@lang=opt,env,data,filename,name,idx_array,lang
@@ -160,7 +165,7 @@ module SiSU_HarvestTopics
       idx_array
     end
   end
-  class Index
+  class Index < Mix
     def initialize(opt,env,idx_array,the_idx)
       @opt,@env,@idx_array,@the_idx=opt,env,idx_array,the_idx
       @@the_idx_topics=@the_idx
@@ -313,7 +318,7 @@ module SiSU_HarvestTopics
             else
               @the_h[x0] ||={}
             end
-            #puts '  '*0 + x0
+            #puts spaces*0 + x0
             if extract >= 1
               y0.each_pair do |x1,y1|
                 if extract == 1
@@ -322,7 +327,7 @@ module SiSU_HarvestTopics
                 else
                   @the_h[x0][x1] ||={}
                 end
-                #puts '  '*1 + x1
+                #puts spaces*1 + x1
                 if extract >= 2
                   y1.each_pair do |x2,y2|
                     if extract == 2
@@ -331,7 +336,7 @@ module SiSU_HarvestTopics
                     else
                       @the_h[x0][x1][x2] ||={}
                     end
-                    #puts '  '*2 + x2
+                    #puts spaces*2 + x2
                     if extract >= 3
                       y2.each_pair do |x3,y3|
                         if extract == 3
@@ -340,7 +345,7 @@ module SiSU_HarvestTopics
                         else
                           @the_h[x0][x1][x2][x3] ||={}
                         end
-                        #puts '  '*3 + x3
+                        #puts spaces*3 + x3
                         if extract == 4
                           y3.each_pair do |x4,y4|
                             if extract == 4
@@ -349,14 +354,14 @@ module SiSU_HarvestTopics
                             else
                               @the_h[x0][x1][x2][x3][x4] ||={}
                             end
-                            #puts '  '*4 + x4
+                            #puts spaces*4 + x4
                             if extract == 5
                               y4.each_pair do |x5,y5|
                                 if extract == 5
                                   @the_h[x0][x1][x2][x3][x4][x5] ||={ md: [] }
                                   @the_h[x0][x1][x2][x3][x4][x5][:md] << y5
                                 end
-                                #puts '  '*5 + x5
+                                #puts spaces*5 + x5
                               end
                             end
                           end
@@ -375,22 +380,22 @@ module SiSU_HarvestTopics
     end
     def traverse_base
       @the_h.each_pair do |x0,y0|
-        puts '  '*0 + x0 if x0.is_a?(String)
+        puts spaces*0 + x0 if x0.is_a?(String)
         if y0.is_a?(Hash)
           y0.each_pair do |x1,y1|
-            puts '  '*1 + x1 if x1.is_a?(String)
+            puts spaces*1 + x1 if x1.is_a?(String)
             if y1.is_a?(Hash)
               y1.each_pair do |x2,y2|
-                puts '  '*2 + x2 if x2.is_a?(String)
+                puts spaces*2 + x2 if x2.is_a?(String)
                 if y2.is_a?(Hash)
                   y2.each_pair do |x3,y3|
-                    puts '  '*3 + x3 if x3.is_a?(String)
+                    puts spaces*3 + x3 if x3.is_a?(String)
                     if y3.is_a?(Hash)
                       y3.each_pair do |x4,y4|
-                        puts '  '*4 + x4 if x4.is_a?(String)
+                        puts spaces*4 + x4 if x4.is_a?(String)
                         if y4.is_a?(Hash)
                           y4.each_pair do |x5,y5|
-                            puts '  '*5 + x5 if x5.is_a?(String)
+                            puts spaces*5 + x5 if x5.is_a?(String)
                           end
                         end
                       end
@@ -405,37 +410,37 @@ module SiSU_HarvestTopics
     end
     def traverse
       @the_h.each_pair do |x0,y0|
-        puts '  '*0 + x0 if x0.is_a?(String)
+        puts spaces*0 + x0 if x0.is_a?(String)
         if y0.is_a?(Hash)
           if y0.has_key?(:md)
-            y0[:md].each { |x| puts '  '*5 + x[:title] }
+            y0[:md].each { |x| puts spaces*5 + x[:title] }
           end
           y0.each_pair do |x1,y1|
-            puts '  '*1 + x1 if x1.is_a?(String)
+            puts spaces*1 + x1 if x1.is_a?(String)
             if y1.is_a?(Hash)
               if y1.has_key?(:md)
-                y1[:md].each { |x| puts '  '*5 + x[:title] }
+                y1[:md].each { |x| puts spaces*5 + x[:title] }
               end
               y1.each_pair do |x2,y2|
-                puts '  '*2 + x2 if x2.is_a?(String)
+                puts spaces*2 + x2 if x2.is_a?(String)
                 if y2.is_a?(Hash)
                   if y2.has_key?(:md)
-                    y2[:md].each { |x| puts '  '*5 + x[:title] }
+                    y2[:md].each { |x| puts spaces*5 + x[:title] }
                   end
                   y2.each_pair do |x3,y3|
-                    puts '  '*3 + x3 if x3.is_a?(String)
+                    puts spaces*3 + x3 if x3.is_a?(String)
                     if y3.is_a?(Hash)
                       if y3.has_key?(:md)
-                        y3[:md].each { |x| puts '  '*5 + x[:title] }
+                        y3[:md].each { |x| puts spaces*5 + x[:title] }
                       end
                       y3.each_pair do |x4,y4|
-                        puts '  '*4 + x4 if x4.is_a?(String)
+                        puts spaces*4 + x4 if x4.is_a?(String)
                         if y4.is_a?(Hash)
                           if y4.has_key?(:md)
-                            y4[:md].each { |x| puts '  '*5 + x[:title] }
+                            y4[:md].each { |x| puts spaces*5 + x[:title] }
                           end
                           y4.each_pair do |x5,y5|
-                            puts '  '*5 + x4 if x4.is_a?(String)
+                            puts spaces*5 + x4 if x4.is_a?(String)
                           end
                         end
                       end
@@ -449,7 +454,7 @@ module SiSU_HarvestTopics
       end
     end
   end
-  class OutputIndex
+  class OutputIndex < Mix
     require_relative 'i18n'                               # i18n.rb
     def initialize(opt,the_idx)
       @opt,@the_idx=opt,the_idx
@@ -509,67 +514,67 @@ module SiSU_HarvestTopics
           lng=x0
           if x0.is_a?(String)
             #do_string_name(lng,'lev0',x0)
-            #puts '  '*0 + x0
+            #puts spaces*0 + x0
           end
           if y0.is_a?(Hash)
             if y0.has_key?(:md)
               y0[:md].each do |x|
                 #do_hash(lng,attrib,x) #lv==0 ?
-                #puts '  '*5 + x[:title]
+                #puts spaces*5 + x[:title]
               end
             end
             y0.each_pair do |x1,y1|
               if x1.is_a?(String)
                 do_string_name(lng,'lev0',x1)
-                #puts '  '*1 + x1
+                #puts spaces*1 + x1
               end
               if y1.is_a?(Hash)
                 if y1.has_key?(:md)
                   y1[:md].each do |x|
                     do_hash(lng,0,x)
-                    #puts '  '*5 + x[:title]
+                    #puts spaces*5 + x[:title]
                   end
                 end
                 y1.each_pair do |x2,y2|
                   if x2.is_a?(String)
                     do_string(lng,'lev1',x2)
-                    #puts '  '*2 + x2
+                    #puts spaces*2 + x2
                   end
                   if y2.is_a?(Hash)
                     if y2.has_key?(:md)
                       y2[:md].each do |x|
                         do_hash(lng,1,x)
-                        #puts '  '*5 + x[:title]
+                        #puts spaces*5 + x[:title]
                       end
                     end
                     y2.each_pair do |x3,y3|
                       if x3.is_a?(String)
                         do_string(lng,'lev2',x3)
-                        #puts '  '*3 + x3
+                        #puts spaces*3 + x3
                       end
                       if y3.is_a?(Hash)
                         if y3.has_key?(:md)
                           y3[:md].each do |x|
                             do_hash(lng,2,x)
-                            #puts '  '*5 + x[:title]
+                            #puts spaces*5 + x[:title]
                           end
                         end
                         y3.each_pair do |x4,y4|
                           if x4.is_a?(String)
                             do_string(lng,'lev3',x4)
-                            #puts '  '*4 + x4
+                            #puts spaces*4 + x4
                           end
                           if y4.is_a?(Hash)
                             if y4.has_key?(:md)
                               y4[:md].each do |x|
                                 do_hash(lng,3,x)
-                                #puts '  '*5 + x[:title]
+                                #puts spaces*5 + x[:title]
                               end
                             end
                             y4.each_pair do |x5,y5|
                               if x5.is_a?(String)
                                 do_string(lng,'lev4',x5)
-                                #puts '  '*5 + x5
+                                #puts spaces*5 + x5
                               end
                             end
                           end
diff --git a/lib/sisu/v5/qrcode.rb b/lib/sisu/v5/qrcode.rb
index 66584198..e17b1d86 100644
--- a/lib/sisu/v5/qrcode.rb
+++ b/lib/sisu/v5/qrcode.rb
@@ -124,6 +124,9 @@ module SiSU_QRcode
         @brace_url=SiSU_Viz::Defaults.new.url_decoration
         @f.make_path(@f.output_path.qrcode.dir)
       end
+      def spaces
+        Ax[:spaces]
+      end
       def output_metadata
         fn=@f.base_filename.manifest_txt
         mn=''
@@ -666,14 +669,13 @@ WOK
         if defined? @md.topic_register_array \
         and @md.topic_register_array.length > 0
           @manifest[:txt] << %{#{@translate.topic_register}:\n}
-@sp='  '
           @md.topic_register_array.each do |t|
             t.each_with_index do |st,i|
               if st.is_a?(Array)
                 st.each do |v|
-                  @manifest[:txt] << %{#{@sp*i}#{v}\n}
+                  @manifest[:txt] << %{#{spaces*i}#{v}\n}
                 end
-              else @manifest[:txt] << %{#{@sp*i}#{st}\n}
+              else @manifest[:txt] << %{#{spaces*i}#{st}\n}
               end
             end
           end
diff --git a/lib/sisu/v5/xml_docbook5.rb b/lib/sisu/v5/xml_docbook5.rb
index 45e6f0cf..98450520 100644
--- a/lib/sisu/v5/xml_docbook5.rb
+++ b/lib/sisu/v5/xml_docbook5.rb
@@ -127,8 +127,8 @@ module SiSU_XML_Docbook_Book
         structure_build_collapsed(data)
         #tail
       end
-      def space
-        '  '
+      def spaces
+        Ax[:spaces]
       end
       def tags
         # collapsed -->
@@ -176,7 +176,7 @@ module SiSU_XML_Docbook_Book
       end
       def output(o,comment='')
          puts o.lc == (0..6) \
-         ? "#{space*o.lc}<#{o.lc}>[#{o.ocn}] #{o.ln} #{o.obj}</#{o.lc}>#{comment}"
+         ? "#{spaces*o.lc}<#{o.lc}>[#{o.ocn}] #{o.ln} #{o.obj}</#{o.lc}>#{comment}"
          : "<#{o.lc}>[#{o.ocn}] #{o.ln} #{o.obj}</#{o.lc}>#{comment}"
       end
       def structure_collapsed(data)
@@ -213,21 +213,21 @@ module SiSU_XML_Docbook_Book
             @splv=o.lc
             tag_id=o.tags[0] ? %{ id="#{o.tags[0]}" } : ''
             if doc_position ==:head
-               filename_docbook.puts  %{#{space*o.lc}<title#{id}>}
+               filename_docbook.puts  %{#{spaces*o.lc}<title#{id}>}
               doc_position=:body_and_tail
             else
               filename_docbook.puts structure_build_tag_close(o.lc,h)
-              filename_docbook.puts  %{#{space*(o.lc)}<#{tags.docbook(o.lc,chlv)}#{tag_id}>
-#{space*o.lc}<title#{id}>
+              filename_docbook.puts  %{#{spaces*(o.lc)}<#{tags.docbook(o.lc,chlv)}#{tag_id}>
+#{spaces*o.lc}<title#{id}>
 }
             end
             filename_docbook.puts SiSU_TextUtils::Wrap.new(o.obj + ocn,80,(@splv*2+2)).line_wrap
-            filename_docbook.puts %{#{space*o.lc}</title>}
+            filename_docbook.puts %{#{spaces*o.lc}</title>}
             h=o.lc
           elsif (o.of ==:para or o.of ==:block)
-            filename_docbook.puts "#{space*(@splv)}<para#{id}>"
+            filename_docbook.puts "#{spaces*(@splv)}<para#{id}>"
             filename_docbook.puts SiSU_TextUtils::Wrap.new(o.obj + ocn,80,(@splv*2+2)).line_wrap
-            filename_docbook.puts "#{space*(@splv)}</para>"
+            filename_docbook.puts "#{spaces*(@splv)}</para>"
           end
         end
         filename_docbook.puts structure_build_tag_close(0,h)
@@ -237,40 +237,40 @@ module SiSU_XML_Docbook_Book
         x=[]
         case h
         when 0
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         when 1
-          x << "#{space*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         when 2
-          x << "#{space*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         when 3
-          x << "#{space*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         when 4
-          x << "#{space*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
-          x << "#{space*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
+          x << "#{spaces*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         when 5
-          x << "#{space*5}</#{tags.docbook(5)}>"       if (lc <= 5)
-          x << "#{space*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
-          x << "#{space*5}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*5}</#{tags.docbook(5)}>"       if (lc <= 5)
+          x << "#{spaces*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
+          x << "#{spaces*5}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         when 6
-          x << "#{space*6}</#{tags.docbook(6)}>"       if (lc <= 6)
-          x << "#{space*5}</#{tags.docbook(5)}>"       if (lc <= 5)
-          x << "#{space*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
-          x << "#{space*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*6}</#{tags.docbook(6)}>"       if (lc <= 6)
+          x << "#{spaces*5}</#{tags.docbook(5)}>"       if (lc <= 5)
+          x << "#{spaces*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
+          x << "#{spaces*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         end
         x.join("\n")
       end
diff --git a/lib/sisu/v5/xml_fictionbook2.rb b/lib/sisu/v5/xml_fictionbook2.rb
index 32a7bc76..f890b329 100644
--- a/lib/sisu/v5/xml_fictionbook2.rb
+++ b/lib/sisu/v5/xml_fictionbook2.rb
@@ -126,8 +126,8 @@ module SiSU_XML_Fictionbook
         data=markup_text(data)
         structure_build_collapsed(data,endnotes,images_base64)
       end
-      def space
-        '  '
+      def spaces
+        Ax[:spaces]
       end
       def tags
         # collapsed -->
@@ -278,7 +278,7 @@ module SiSU_XML_Fictionbook
       end
       def output(o,comment='')
          puts o.lc == (0..6) \
-         ? "#{space*o.lc}<#{o.lc}>[#{o.ocn}] #{o.ln} #{o.obj}</#{o.lc}>#{comment}"
+         ? "#{spaces*o.lc}<#{o.lc}>[#{o.ocn}] #{o.ln} #{o.obj}</#{o.lc}>#{comment}"
          : "<#{o.lc}>[#{o.ocn}] #{o.ln} #{o.obj}</#{o.lc}>#{comment}"
       end
       def structure_collapsed(data)
@@ -315,11 +315,11 @@ module SiSU_XML_Fictionbook
               filename_fictionbook.puts structure_build_tag_close(o.lc,h)
             end
             doc_position=:body_and_tail
-            filename_fictionbook.puts %{#{space*o.lc}<#{tags.fictionbook[o.lc]}>
-#{space*o.lc}<title>
+            filename_fictionbook.puts %{#{spaces*o.lc}<#{tags.fictionbook[o.lc]}>
+#{spaces*o.lc}<title>
 }
             filename_fictionbook.puts SiSU_TextUtils::Wrap.new("<p>#{o.obj}#{ocn}</p>",80,(o.lc*2+2)).line_wrap
-            filename_fictionbook.puts %{#{space*o.lc}</title>}
+            filename_fictionbook.puts %{#{spaces*o.lc}</title>}
             h=o.lc
           elsif  o.is ==:heading_insert \
           and o.obj =~/Endnotes/ \
@@ -338,40 +338,40 @@ module SiSU_XML_Fictionbook
         x=[]
         case h
         when 0
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         when 1
-          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         when 2
-          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         when 3
-          x << "#{space*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         when 4
-          x << "#{space*4}</#{tags.fictionbook[4]}>" if (lc <= 4)
-          x << "#{space*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*4}</#{tags.fictionbook[4]}>" if (lc <= 4)
+          x << "#{spaces*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         when 5
-          x << "#{space*5}</#{tags.fictionbook[5]}>" if (lc <= 5)
-          x << "#{space*4}</#{tags.fictionbook[4]}>" if (lc <= 4)
-          x << "#{space*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*5}</#{tags.fictionbook[5]}>" if (lc <= 5)
+          x << "#{spaces*4}</#{tags.fictionbook[4]}>" if (lc <= 4)
+          x << "#{spaces*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         when 6
-          x << "#{space*6}</#{tags.fictionbook[6]}>" if (lc <= 6)
-          x << "#{space*5}</#{tags.fictionbook[5]}>" if (lc <= 5)
-          x << "#{space*4}</#{tags.fictionbook[4]}>" if (lc <= 4)
-          x << "#{space*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*6}</#{tags.fictionbook[6]}>" if (lc <= 6)
+          x << "#{spaces*5}</#{tags.fictionbook[5]}>" if (lc <= 5)
+          x << "#{spaces*4}</#{tags.fictionbook[4]}>" if (lc <= 4)
+          x << "#{spaces*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         end
         x.join("\n")
       end
diff --git a/lib/sisu/v5/xml_scaffold_structure_collapsed.rb b/lib/sisu/v5/xml_scaffold_structure_collapsed.rb
index b6430159..0395d090 100644
--- a/lib/sisu/v5/xml_scaffold_structure_collapsed.rb
+++ b/lib/sisu/v5/xml_scaffold_structure_collapsed.rb
@@ -70,7 +70,9 @@ module SiSU_XML_Scaffold_Structure_Collapse
     def initialize(opt)
       @opt=opt
       @particulars=SiSU_Particulars::CombinedSingleton.instance.get_all(opt)
-      @sp='  '
+    end
+    def spaces
+      Ax[:spaces]
     end
     def read
       begin
@@ -87,7 +89,6 @@ module SiSU_XML_Scaffold_Structure_Collapse
     class Scroll <Source
       def initialize(data='',md='')
         @data,@md=data,md
-        @sp='  '
       end
       def songsheet
         @t='sisu'
@@ -116,8 +117,8 @@ module SiSU_XML_Scaffold_Structure_Collapse
         self
       end
       def output(o,lev=nil,comment='')
-         puts lev == 0..6 \
-         ? "#{@sp*lev}<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
+         puts lev == (0..6) \
+         ? "#{spaces*lev}<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
          : "<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
       end
       def structure_collapsed(data)
@@ -137,7 +138,7 @@ module SiSU_XML_Scaffold_Structure_Collapse
           if  (o.is ==:heading || o.is ==:heading_insert)
             lev=o.lc
             structure_build_tag_close(lev,h)
-            puts "#{@sp*lev}<#{@s[lev]}>\n#{@sp*lev}  [#{o.ocn}] #{lev} {#{o.node}}"
+            puts "#{spaces*lev}<#{@s[lev]}>\n#{spaces*lev}  [#{o.ocn}] #{lev} {#{o.node}}"
             h[0]=lev
           end
         end
@@ -146,37 +147,37 @@ module SiSU_XML_Scaffold_Structure_Collapse
       def structure_build_tag_close(lev,h)
         case h[0]
         when 1
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1)
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1)
           puts "</#{@s[0]}>"         if (lev==0)
         when 2
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2)
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1)
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2)
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1)
           puts "</#{@s[0]}>"         if (lev==0)
         when 3
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3)
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2)
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3)
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2)
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1)
           puts "</#{@s[0]}>"         if (lev==0)
         when 4
-          puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3)
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2)
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1)
+          puts "#{spaces*4}</#{@s[4]}>" if (lev <= 4)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3)
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2)
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1)
           puts "</#{@s[0]}>"         if (lev==0)
         when 5
-          puts "#{@sp*5}</#{@s[5]}>" if (lev <= 5)
-          puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3)
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2)
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1)
+          puts "#{spaces*5}</#{@s[5]}>" if (lev <= 5)
+          puts "#{spaces*4}</#{@s[4]}>" if (lev <= 4)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3)
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2)
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1)
           puts "</#{@s[0]}>"         if (lev==0)
         when 6
-          puts "#{@sp*6}</#{@s[6]}>" if (lev <= 6)
-          puts "#{@sp*5}</#{@s[5]}>" if (lev <= 5)
-          puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3)
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2)
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1)
+          puts "#{spaces*6}</#{@s[6]}>" if (lev <= 6)
+          puts "#{spaces*5}</#{@s[5]}>" if (lev <= 5)
+          puts "#{spaces*4}</#{@s[4]}>" if (lev <= 4)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3)
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2)
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1)
           puts "</#{@s[0]}>"         if (lev==0)
         end
       end
diff --git a/lib/sisu/v5/xml_scaffold_structure_sisu.rb b/lib/sisu/v5/xml_scaffold_structure_sisu.rb
index 5e2afa4d..39ca1e6a 100644
--- a/lib/sisu/v5/xml_scaffold_structure_sisu.rb
+++ b/lib/sisu/v5/xml_scaffold_structure_sisu.rb
@@ -70,7 +70,9 @@ module SiSU_XML_Scaffold_Structure_Sisu
     def initialize(opt)
       @opt=opt
       @particulars=SiSU_Particulars::CombinedSingleton.instance.get_all(opt)
-      @sp='  '
+    end
+    def spaces
+      Ax[:spaces]
     end
     def read
       begin
@@ -87,7 +89,6 @@ module SiSU_XML_Scaffold_Structure_Sisu
     class Scroll <Source
       def initialize(data='',md='')
         @data,@md=data,md
-        @sp='  '
       end
       def songsheet
         @t='sisu'
@@ -114,13 +115,13 @@ module SiSU_XML_Scaffold_Structure_Sisu
         puts "\nsisu structure, heading outline --->\n\n"
         data.each_with_index do |o,i|
           if  (o.is ==:heading || o.is ==:heading_insert)
-            puts "#{@sp*o.ln}<#{tags.sisu[o.ln]}>[#{o.ocn}] #{o.ln} #{o.obj}</#{tags.sisu[o.ln]}>"
+            puts "#{spaces*o.ln}<#{tags.sisu[o.ln]}>[#{o.ocn}] #{o.ln} #{o.obj}</#{tags.sisu[o.ln]}>"
           end
         end
       end
       def output(o,lev=nil,comment='')
-         puts lev == 0..6 \
-         ? "#{@sp*lev}<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
+         puts lev == (0..6) \
+         ? "#{spaces*lev}<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
          : "<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
       end
       def structure_build_sisu(data)
@@ -131,7 +132,7 @@ module SiSU_XML_Scaffold_Structure_Sisu
         data.each_with_index do |o,i|
           if  (o.is ==:heading || o.is ==:heading_insert)
             structure_build_tag_close(o.ln,h)
-            puts "#{@sp*o.ln}<#{@s[o.ln]}>\n#{@sp*o.ln}  [#{o.ocn}] #{o.ln} {#{o.node}}"
+            puts "#{spaces*o.ln}<#{@s[o.ln]}>\n#{spaces*o.ln}  [#{o.ocn}] #{o.ln} {#{o.node}}"
             case o.ln
             when 1
               h=[o.ln,true,false,false]
@@ -149,37 +150,37 @@ module SiSU_XML_Scaffold_Structure_Sisu
       def structure_build_tag_close(lev,h)
         case h[0]
         when 1
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) && h[1]
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1) && h[1]
           puts "</#{@s[0]}>"         if (lev==0)
         when 2
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) && h[2]
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) && h[1]
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2) && h[2]
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1) && h[1]
           puts "</#{@s[0]}>"         if (lev==0)
         when 3
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3) && h[3]
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) && h[2]
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) && h[1]
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3) && h[3]
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2) && h[2]
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1) && h[1]
           puts "</#{@s[0]}>"         if (lev==0)
         when 4
-          puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3) && h[3]
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) && h[2]
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) && h[1]
+          puts "#{spaces*4}</#{@s[4]}>" if (lev <= 4)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3) && h[3]
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2) && h[2]
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1) && h[1]
           puts "</#{@s[0]}>"         if (lev==0)
         when 5
-          puts "#{@sp*5}</#{@s[5]}>" if (lev <= 5)
-          puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3) && h[3]
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) && h[2]
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) && h[1]
+          puts "#{spaces*5}</#{@s[5]}>" if (lev <= 5)
+          puts "#{spaces*4}</#{@s[4]}>" if (lev <= 4)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3) && h[3]
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2) && h[2]
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1) && h[1]
           puts "</#{@s[0]}>"         if (lev==0)
         when 6
-          puts "#{@sp*6}</#{@s[6]}>" if (lev <= 6)
-          puts "#{@sp*5}</#{@s[5]}>" if (lev <= 5)
-          puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3) && h[3]
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) && h[2]
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) && h[1]
+          puts "#{spaces*6}</#{@s[6]}>" if (lev <= 6)
+          puts "#{spaces*5}</#{@s[5]}>" if (lev <= 5)
+          puts "#{spaces*4}</#{@s[4]}>" if (lev <= 4)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3) && h[3]
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2) && h[2]
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1) && h[1]
           puts "</#{@s[0]}>"         if (lev==0)
         end
       end
diff --git a/lib/sisu/v6/digests.rb b/lib/sisu/v6/digests.rb
index 24ddc32e..7e5e42ab 100644
--- a/lib/sisu/v6/digests.rb
+++ b/lib/sisu/v6/digests.rb
@@ -134,6 +134,9 @@ module SiSU_DigestView
         supplementary
         output
       end
+      def spaces
+        Ax[:spaces]
+      end
       def description(f,e='')
         puts f + e.to_s if @md.opt.act[:verbose_plus][:set]==:on
         @@description << f << e
@@ -234,19 +237,19 @@ module SiSU_DigestView
           if t_o.is==:heading
             x=case t_o.ln
             when 0 then l[0] +=1
-              '  '*0 << ':A'
+              spaces*0 << ':A'
             when 1 then l[1] +=1
-              '  '*1 << ':B'
+              spaces*1 << ':B'
             when 2 then l[2] +=1
-              '  '*2 << ':C'
+              spaces*2 << ':C'
             when 3 then l[3] +=1
-              '  '*3 << ':D'
+              spaces*3 << ':D'
             when 4 then l[4] +=1
-              '  '*4 << '1'
+              spaces*4 << '1'
             when 5 then l[5] +=1
-              '  '*5 << '2'
+              spaces*5 << '2'
             when 6 then l[6] +=1
-              '  '*6 << '3'
+              spaces*6 << '3'
             else nil
             end
           end
diff --git a/lib/sisu/v6/harvest_topics.rb b/lib/sisu/v6/harvest_topics.rb
index ce6e13c2..c682bd37 100644
--- a/lib/sisu/v6/harvest_topics.rb
+++ b/lib/sisu/v6/harvest_topics.rb
@@ -97,6 +97,11 @@ module SiSU_HarvestTopics
       SiSU_HarvestTopics::OutputIndex.new(@opt,the_hash).html_print.html_songsheet
     end
   end
+  class Mix
+    def spaces
+      Ax[:spaces]
+    end
+  end
   class Harvest
     def initialize(opt,env,data,filename,name,idx_array,lang)
       @opt,@env,@data,@filename,@name,@idx_array,@lang=opt,env,data,filename,name,idx_array,lang
@@ -160,7 +165,7 @@ module SiSU_HarvestTopics
       idx_array
     end
   end
-  class Index
+  class Index < Mix
     def initialize(opt,env,idx_array,the_idx)
       @opt,@env,@idx_array,@the_idx=opt,env,idx_array,the_idx
       @@the_idx_topics=@the_idx
@@ -313,7 +318,7 @@ module SiSU_HarvestTopics
             else
               @the_h[x0] ||={}
             end
-            #puts '  '*0 + x0
+            #puts spaces*0 + x0
             if extract >= 1
               y0.each_pair do |x1,y1|
                 if extract == 1
@@ -322,7 +327,7 @@ module SiSU_HarvestTopics
                 else
                   @the_h[x0][x1] ||={}
                 end
-                #puts '  '*1 + x1
+                #puts spaces*1 + x1
                 if extract >= 2
                   y1.each_pair do |x2,y2|
                     if extract == 2
@@ -331,7 +336,7 @@ module SiSU_HarvestTopics
                     else
                       @the_h[x0][x1][x2] ||={}
                     end
-                    #puts '  '*2 + x2
+                    #puts spaces*2 + x2
                     if extract >= 3
                       y2.each_pair do |x3,y3|
                         if extract == 3
@@ -340,7 +345,7 @@ module SiSU_HarvestTopics
                         else
                           @the_h[x0][x1][x2][x3] ||={}
                         end
-                        #puts '  '*3 + x3
+                        #puts spaces*3 + x3
                         if extract == 4
                           y3.each_pair do |x4,y4|
                             if extract == 4
@@ -349,14 +354,14 @@ module SiSU_HarvestTopics
                             else
                               @the_h[x0][x1][x2][x3][x4] ||={}
                             end
-                            #puts '  '*4 + x4
+                            #puts spaces*4 + x4
                             if extract == 5
                               y4.each_pair do |x5,y5|
                                 if extract == 5
                                   @the_h[x0][x1][x2][x3][x4][x5] ||={ md: [] }
                                   @the_h[x0][x1][x2][x3][x4][x5][:md] << y5
                                 end
-                                #puts '  '*5 + x5
+                                #puts spaces*5 + x5
                               end
                             end
                           end
@@ -375,22 +380,22 @@ module SiSU_HarvestTopics
     end
     def traverse_base
       @the_h.each_pair do |x0,y0|
-        puts '  '*0 + x0 if x0.is_a?(String)
+        puts spaces*0 + x0 if x0.is_a?(String)
         if y0.is_a?(Hash)
           y0.each_pair do |x1,y1|
-            puts '  '*1 + x1 if x1.is_a?(String)
+            puts spaces*1 + x1 if x1.is_a?(String)
             if y1.is_a?(Hash)
               y1.each_pair do |x2,y2|
-                puts '  '*2 + x2 if x2.is_a?(String)
+                puts spaces*2 + x2 if x2.is_a?(String)
                 if y2.is_a?(Hash)
                   y2.each_pair do |x3,y3|
-                    puts '  '*3 + x3 if x3.is_a?(String)
+                    puts spaces*3 + x3 if x3.is_a?(String)
                     if y3.is_a?(Hash)
                       y3.each_pair do |x4,y4|
-                        puts '  '*4 + x4 if x4.is_a?(String)
+                        puts spaces*4 + x4 if x4.is_a?(String)
                         if y4.is_a?(Hash)
                           y4.each_pair do |x5,y5|
-                            puts '  '*5 + x5 if x5.is_a?(String)
+                            puts spaces*5 + x5 if x5.is_a?(String)
                           end
                         end
                       end
@@ -405,37 +410,37 @@ module SiSU_HarvestTopics
     end
     def traverse
       @the_h.each_pair do |x0,y0|
-        puts '  '*0 + x0 if x0.is_a?(String)
+        puts spaces*0 + x0 if x0.is_a?(String)
         if y0.is_a?(Hash)
           if y0.has_key?(:md)
-            y0[:md].each { |x| puts '  '*5 + x[:title] }
+            y0[:md].each { |x| puts spaces*5 + x[:title] }
           end
           y0.each_pair do |x1,y1|
-            puts '  '*1 + x1 if x1.is_a?(String)
+            puts spaces*1 + x1 if x1.is_a?(String)
             if y1.is_a?(Hash)
               if y1.has_key?(:md)
-                y1[:md].each { |x| puts '  '*5 + x[:title] }
+                y1[:md].each { |x| puts spaces*5 + x[:title] }
               end
               y1.each_pair do |x2,y2|
-                puts '  '*2 + x2 if x2.is_a?(String)
+                puts spaces*2 + x2 if x2.is_a?(String)
                 if y2.is_a?(Hash)
                   if y2.has_key?(:md)
-                    y2[:md].each { |x| puts '  '*5 + x[:title] }
+                    y2[:md].each { |x| puts spaces*5 + x[:title] }
                   end
                   y2.each_pair do |x3,y3|
-                    puts '  '*3 + x3 if x3.is_a?(String)
+                    puts spaces*3 + x3 if x3.is_a?(String)
                     if y3.is_a?(Hash)
                       if y3.has_key?(:md)
-                        y3[:md].each { |x| puts '  '*5 + x[:title] }
+                        y3[:md].each { |x| puts spaces*5 + x[:title] }
                       end
                       y3.each_pair do |x4,y4|
-                        puts '  '*4 + x4 if x4.is_a?(String)
+                        puts spaces*4 + x4 if x4.is_a?(String)
                         if y4.is_a?(Hash)
                           if y4.has_key?(:md)
-                            y4[:md].each { |x| puts '  '*5 + x[:title] }
+                            y4[:md].each { |x| puts spaces*5 + x[:title] }
                           end
                           y4.each_pair do |x5,y5|
-                            puts '  '*5 + x4 if x4.is_a?(String)
+                            puts spaces*5 + x4 if x4.is_a?(String)
                           end
                         end
                       end
@@ -449,7 +454,7 @@ module SiSU_HarvestTopics
       end
     end
   end
-  class OutputIndex
+  class OutputIndex < Mix
     require_relative 'i18n'                               # i18n.rb
     def initialize(opt,the_idx)
       @opt,@the_idx=opt,the_idx
@@ -509,67 +514,67 @@ module SiSU_HarvestTopics
           lng=x0
           if x0.is_a?(String)
             #do_string_name(lng,'lev0',x0)
-            #puts '  '*0 + x0
+            #puts spaces*0 + x0
           end
           if y0.is_a?(Hash)
             if y0.has_key?(:md)
               y0[:md].each do |x|
                 #do_hash(lng,attrib,x) #lv==0 ?
-                #puts '  '*5 + x[:title]
+                #puts spaces*5 + x[:title]
               end
             end
             y0.each_pair do |x1,y1|
               if x1.is_a?(String)
                 do_string_name(lng,'lev0',x1)
-                #puts '  '*1 + x1
+                #puts spaces*1 + x1
               end
               if y1.is_a?(Hash)
                 if y1.has_key?(:md)
                   y1[:md].each do |x|
                     do_hash(lng,0,x)
-                    #puts '  '*5 + x[:title]
+                    #puts spaces*5 + x[:title]
                   end
                 end
                 y1.each_pair do |x2,y2|
                   if x2.is_a?(String)
                     do_string(lng,'lev1',x2)
-                    #puts '  '*2 + x2
+                    #puts spaces*2 + x2
                   end
                   if y2.is_a?(Hash)
                     if y2.has_key?(:md)
                       y2[:md].each do |x|
                         do_hash(lng,1,x)
-                        #puts '  '*5 + x[:title]
+                        #puts spaces*5 + x[:title]
                       end
                     end
                     y2.each_pair do |x3,y3|
                       if x3.is_a?(String)
                         do_string(lng,'lev2',x3)
-                        #puts '  '*3 + x3
+                        #puts spaces*3 + x3
                       end
                       if y3.is_a?(Hash)
                         if y3.has_key?(:md)
                           y3[:md].each do |x|
                             do_hash(lng,2,x)
-                            #puts '  '*5 + x[:title]
+                            #puts spaces*5 + x[:title]
                           end
                         end
                         y3.each_pair do |x4,y4|
                           if x4.is_a?(String)
                             do_string(lng,'lev3',x4)
-                            #puts '  '*4 + x4
+                            #puts spaces*4 + x4
                           end
                           if y4.is_a?(Hash)
                             if y4.has_key?(:md)
                               y4[:md].each do |x|
                                 do_hash(lng,3,x)
-                                #puts '  '*5 + x[:title]
+                                #puts spaces*5 + x[:title]
                               end
                             end
                             y4.each_pair do |x5,y5|
                               if x5.is_a?(String)
                                 do_string(lng,'lev4',x5)
-                                #puts '  '*5 + x5
+                                #puts spaces*5 + x5
                               end
                             end
                           end
diff --git a/lib/sisu/v6/qrcode.rb b/lib/sisu/v6/qrcode.rb
index 73feaf3f..a8d27ad2 100644
--- a/lib/sisu/v6/qrcode.rb
+++ b/lib/sisu/v6/qrcode.rb
@@ -124,6 +124,9 @@ module SiSU_QRcode
         @brace_url=SiSU_Viz::Defaults.new.url_decoration
         @f.make_path(@f.output_path.qrcode.dir)
       end
+      def spaces
+        Ax[:spaces]
+      end
       def output_metadata
         fn=@f.base_filename.manifest_txt
         mn=''
@@ -666,14 +669,13 @@ WOK
         if defined? @md.topic_register_array \
         and @md.topic_register_array.length > 0
           @manifest[:txt] << %{#{@translate.topic_register}:\n}
-@sp='  '
           @md.topic_register_array.each do |t|
             t.each_with_index do |st,i|
               if st.is_a?(Array)
                 st.each do |v|
-                  @manifest[:txt] << %{#{@sp*i}#{v}\n}
+                  @manifest[:txt] << %{#{spaces*i}#{v}\n}
                 end
-              else @manifest[:txt] << %{#{@sp*i}#{st}\n}
+              else @manifest[:txt] << %{#{spaces*i}#{st}\n}
               end
             end
           end
diff --git a/lib/sisu/v6/xml_docbook5.rb b/lib/sisu/v6/xml_docbook5.rb
index f5dba87a..bc4ad233 100644
--- a/lib/sisu/v6/xml_docbook5.rb
+++ b/lib/sisu/v6/xml_docbook5.rb
@@ -127,8 +127,8 @@ module SiSU_XML_Docbook_Book
         structure_build_collapsed(data)
         #tail
       end
-      def space
-        '  '
+      def spaces
+        Ax[:spaces]
       end
       def tags
         # collapsed -->
@@ -176,7 +176,7 @@ module SiSU_XML_Docbook_Book
       end
       def output(o,comment='')
          puts o.lc == (0..6) \
-         ? "#{space*o.lc}<#{o.lc}>[#{o.ocn}] #{o.ln} #{o.obj}</#{o.lc}>#{comment}"
+         ? "#{spaces*o.lc}<#{o.lc}>[#{o.ocn}] #{o.ln} #{o.obj}</#{o.lc}>#{comment}"
          : "<#{o.lc}>[#{o.ocn}] #{o.ln} #{o.obj}</#{o.lc}>#{comment}"
       end
       def structure_collapsed(data)
@@ -213,21 +213,21 @@ module SiSU_XML_Docbook_Book
             @splv=o.lc
             tag_id=o.tags[0] ? %{ id="#{o.tags[0]}" } : ''
             if doc_position ==:head
-               filename_docbook.puts  %{#{space*o.lc}<title#{id}>}
+               filename_docbook.puts  %{#{spaces*o.lc}<title#{id}>}
               doc_position=:body_and_tail
             else
               filename_docbook.puts structure_build_tag_close(o.lc,h)
-              filename_docbook.puts  %{#{space*(o.lc)}<#{tags.docbook(o.lc,chlv)}#{tag_id}>
-#{space*o.lc}<title#{id}>
+              filename_docbook.puts  %{#{spaces*(o.lc)}<#{tags.docbook(o.lc,chlv)}#{tag_id}>
+#{spaces*o.lc}<title#{id}>
 }
             end
             filename_docbook.puts SiSU_TextUtils::Wrap.new(o.obj + ocn,80,(@splv*2+2)).line_wrap
-            filename_docbook.puts %{#{space*o.lc}</title>}
+            filename_docbook.puts %{#{spaces*o.lc}</title>}
             h=o.lc
           elsif (o.of ==:para or o.of ==:block)
-            filename_docbook.puts "#{space*(@splv)}<para#{id}>"
+            filename_docbook.puts "#{spaces*(@splv)}<para#{id}>"
             filename_docbook.puts SiSU_TextUtils::Wrap.new(o.obj + ocn,80,(@splv*2+2)).line_wrap
-            filename_docbook.puts "#{space*(@splv)}</para>"
+            filename_docbook.puts "#{spaces*(@splv)}</para>"
           end
         end
         filename_docbook.puts structure_build_tag_close(0,h)
@@ -237,40 +237,40 @@ module SiSU_XML_Docbook_Book
         x=[]
         case h
         when 0
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         when 1
-          x << "#{space*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         when 2
-          x << "#{space*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         when 3
-          x << "#{space*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         when 4
-          x << "#{space*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
-          x << "#{space*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
+          x << "#{spaces*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         when 5
-          x << "#{space*5}</#{tags.docbook(5)}>"       if (lc <= 5)
-          x << "#{space*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
-          x << "#{space*5}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*5}</#{tags.docbook(5)}>"       if (lc <= 5)
+          x << "#{spaces*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
+          x << "#{spaces*5}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         when 6
-          x << "#{space*6}</#{tags.docbook(6)}>"       if (lc <= 6)
-          x << "#{space*5}</#{tags.docbook(5)}>"       if (lc <= 5)
-          x << "#{space*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
-          x << "#{space*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.docbook(0)}>"       if (lc <= 0)
+          x << "#{spaces*6}</#{tags.docbook(6)}>"       if (lc <= 6)
+          x << "#{spaces*5}</#{tags.docbook(5)}>"       if (lc <= 5)
+          x << "#{spaces*4}</#{tags.docbook(4,@chlv)}>" if (lc <= 4)
+          x << "#{spaces*3}</#{tags.docbook(3,@chlv)}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.docbook(2,@chlv)}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.docbook(1,@chlv)}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.docbook(0)}>"       if (lc <= 0)
         end
         x.join("\n")
       end
diff --git a/lib/sisu/v6/xml_fictionbook2.rb b/lib/sisu/v6/xml_fictionbook2.rb
index d0ad4a7f..4e580b84 100644
--- a/lib/sisu/v6/xml_fictionbook2.rb
+++ b/lib/sisu/v6/xml_fictionbook2.rb
@@ -126,8 +126,8 @@ module SiSU_XML_Fictionbook
         data=markup_text(data)
         structure_build_collapsed(data,endnotes,images_base64)
       end
-      def space
-        '  '
+      def spaces
+        Ax[:spaces]
       end
       def tags
         # collapsed -->
@@ -278,7 +278,7 @@ module SiSU_XML_Fictionbook
       end
       def output(o,comment='')
          puts o.lc == (0..6) \
-         ? "#{space*o.lc}<#{o.lc}>[#{o.ocn}] #{o.ln} #{o.obj}</#{o.lc}>#{comment}"
+         ? "#{spaces*o.lc}<#{o.lc}>[#{o.ocn}] #{o.ln} #{o.obj}</#{o.lc}>#{comment}"
          : "<#{o.lc}>[#{o.ocn}] #{o.ln} #{o.obj}</#{o.lc}>#{comment}"
       end
       def structure_collapsed(data)
@@ -315,11 +315,11 @@ module SiSU_XML_Fictionbook
               filename_fictionbook.puts structure_build_tag_close(o.lc,h)
             end
             doc_position=:body_and_tail
-            filename_fictionbook.puts %{#{space*o.lc}<#{tags.fictionbook[o.lc]}>
-#{space*o.lc}<title>
+            filename_fictionbook.puts %{#{spaces*o.lc}<#{tags.fictionbook[o.lc]}>
+#{spaces*o.lc}<title>
 }
             filename_fictionbook.puts SiSU_TextUtils::Wrap.new("<p>#{o.obj}#{ocn}</p>",80,(o.lc*2+2)).line_wrap
-            filename_fictionbook.puts %{#{space*o.lc}</title>}
+            filename_fictionbook.puts %{#{spaces*o.lc}</title>}
             h=o.lc
           elsif  o.is ==:heading_insert \
           and o.obj =~/Endnotes/ \
@@ -338,40 +338,40 @@ module SiSU_XML_Fictionbook
         x=[]
         case h
         when 0
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         when 1
-          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         when 2
-          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         when 3
-          x << "#{space*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         when 4
-          x << "#{space*4}</#{tags.fictionbook[4]}>" if (lc <= 4)
-          x << "#{space*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*4}</#{tags.fictionbook[4]}>" if (lc <= 4)
+          x << "#{spaces*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         when 5
-          x << "#{space*5}</#{tags.fictionbook[5]}>" if (lc <= 5)
-          x << "#{space*4}</#{tags.fictionbook[4]}>" if (lc <= 4)
-          x << "#{space*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*5}</#{tags.fictionbook[5]}>" if (lc <= 5)
+          x << "#{spaces*4}</#{tags.fictionbook[4]}>" if (lc <= 4)
+          x << "#{spaces*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         when 6
-          x << "#{space*6}</#{tags.fictionbook[6]}>" if (lc <= 6)
-          x << "#{space*5}</#{tags.fictionbook[5]}>" if (lc <= 5)
-          x << "#{space*4}</#{tags.fictionbook[4]}>" if (lc <= 4)
-          x << "#{space*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
-          x << "#{space*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
-          x << "#{space*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
-          x << "#{space*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
+          x << "#{spaces*6}</#{tags.fictionbook[6]}>" if (lc <= 6)
+          x << "#{spaces*5}</#{tags.fictionbook[5]}>" if (lc <= 5)
+          x << "#{spaces*4}</#{tags.fictionbook[4]}>" if (lc <= 4)
+          x << "#{spaces*3}</#{tags.fictionbook[3]}>" if (lc <= 3)
+          x << "#{spaces*2}</#{tags.fictionbook[2]}>" if (lc <= 2)
+          x << "#{spaces*1}</#{tags.fictionbook[1]}>" if (lc <= 1)
+          x << "#{spaces*0}</#{tags.fictionbook[0]}>" if (lc <= 0)
         end
         x.join("\n")
       end
diff --git a/lib/sisu/v6/xml_scaffold_structure_collapsed.rb b/lib/sisu/v6/xml_scaffold_structure_collapsed.rb
index 23bc4f4c..9fece3bf 100644
--- a/lib/sisu/v6/xml_scaffold_structure_collapsed.rb
+++ b/lib/sisu/v6/xml_scaffold_structure_collapsed.rb
@@ -70,7 +70,9 @@ module SiSU_XML_Scaffold_Structure_Collapse
     def initialize(opt)
       @opt=opt
       @particulars=SiSU_Particulars::CombinedSingleton.instance.get_all(opt)
-      @sp='  '
+    end
+    def spaces
+      Ax[:spaces]
     end
     def read
       begin
@@ -87,7 +89,6 @@ module SiSU_XML_Scaffold_Structure_Collapse
     class Scroll <Source
       def initialize(data='',md='')
         @data,@md=data,md
-        @sp='  '
       end
       def songsheet
         @t='sisu'
@@ -116,8 +117,8 @@ module SiSU_XML_Scaffold_Structure_Collapse
         self
       end
       def output(o,lev=nil,comment='')
-         puts lev == 0..6 \
-         ? "#{@sp*lev}<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
+         puts lev == (0..6) \
+         ? "#{spaces*lev}<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
          : "<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
       end
       def structure_collapsed(data)
@@ -137,7 +138,7 @@ module SiSU_XML_Scaffold_Structure_Collapse
           if  (o.is ==:heading || o.is ==:heading_insert)
             lev=o.lc
             structure_build_tag_close(lev,h)
-            puts "#{@sp*lev}<#{@s[lev]}>\n#{@sp*lev}  [#{o.ocn}] #{lev} {#{o.node}}"
+            puts "#{spaces*lev}<#{@s[lev]}>\n#{spaces*lev}  [#{o.ocn}] #{lev} {#{o.node}}"
             h[0]=lev
           end
         end
@@ -146,37 +147,37 @@ module SiSU_XML_Scaffold_Structure_Collapse
       def structure_build_tag_close(lev,h)
         case h[0]
         when 1
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1)
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1)
           puts "</#{@s[0]}>"         if (lev==0)
         when 2
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2)
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1)
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2)
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1)
           puts "</#{@s[0]}>"         if (lev==0)
         when 3
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3)
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2)
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3)
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2)
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1)
           puts "</#{@s[0]}>"         if (lev==0)
         when 4
-          puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3)
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2)
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1)
+          puts "#{spaces*4}</#{@s[4]}>" if (lev <= 4)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3)
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2)
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1)
           puts "</#{@s[0]}>"         if (lev==0)
         when 5
-          puts "#{@sp*5}</#{@s[5]}>" if (lev <= 5)
-          puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3)
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2)
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1)
+          puts "#{spaces*5}</#{@s[5]}>" if (lev <= 5)
+          puts "#{spaces*4}</#{@s[4]}>" if (lev <= 4)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3)
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2)
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1)
           puts "</#{@s[0]}>"         if (lev==0)
         when 6
-          puts "#{@sp*6}</#{@s[6]}>" if (lev <= 6)
-          puts "#{@sp*5}</#{@s[5]}>" if (lev <= 5)
-          puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3)
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2)
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1)
+          puts "#{spaces*6}</#{@s[6]}>" if (lev <= 6)
+          puts "#{spaces*5}</#{@s[5]}>" if (lev <= 5)
+          puts "#{spaces*4}</#{@s[4]}>" if (lev <= 4)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3)
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2)
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1)
           puts "</#{@s[0]}>"         if (lev==0)
         end
       end
diff --git a/lib/sisu/v6/xml_scaffold_structure_sisu.rb b/lib/sisu/v6/xml_scaffold_structure_sisu.rb
index 075a00ee..a21f8347 100644
--- a/lib/sisu/v6/xml_scaffold_structure_sisu.rb
+++ b/lib/sisu/v6/xml_scaffold_structure_sisu.rb
@@ -70,7 +70,9 @@ module SiSU_XML_Scaffold_Structure_Sisu
     def initialize(opt)
       @opt=opt
       @particulars=SiSU_Particulars::CombinedSingleton.instance.get_all(opt)
-      @sp='  '
+    end
+    def spaces
+      Ax[:spaces]
     end
     def read
       begin
@@ -87,7 +89,6 @@ module SiSU_XML_Scaffold_Structure_Sisu
     class Scroll <Source
       def initialize(data='',md='')
         @data,@md=data,md
-        @sp='  '
       end
       def songsheet
         @t='sisu'
@@ -114,13 +115,13 @@ module SiSU_XML_Scaffold_Structure_Sisu
         puts "\nsisu structure, heading outline --->\n\n"
         data.each_with_index do |o,i|
           if  (o.is ==:heading || o.is ==:heading_insert)
-            puts "#{@sp*o.ln}<#{tags.sisu[o.ln]}>[#{o.ocn}] #{o.ln} #{o.obj}</#{tags.sisu[o.ln]}>"
+            puts "#{spaces*o.ln}<#{tags.sisu[o.ln]}>[#{o.ocn}] #{o.ln} #{o.obj}</#{tags.sisu[o.ln]}>"
           end
         end
       end
       def output(o,lev=nil,comment='')
-         puts lev == 0..6 \
-         ? "#{@sp*lev}<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
+         puts lev == (0..6) \
+         ? "#{spaces*lev}<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
          : "<#{lev}>[#{o.ocn}] #{o.ln} #{o.obj}</#{lev}>#{comment}"
       end
       def structure_build_sisu(data)
@@ -131,7 +132,7 @@ module SiSU_XML_Scaffold_Structure_Sisu
         data.each_with_index do |o,i|
           if  (o.is ==:heading || o.is ==:heading_insert)
             structure_build_tag_close(o.ln,h)
-            puts "#{@sp*o.ln}<#{@s[o.ln]}>\n#{@sp*o.ln}  [#{o.ocn}] #{o.ln} {#{o.node}}"
+            puts "#{spaces*o.ln}<#{@s[o.ln]}>\n#{spaces*o.ln}  [#{o.ocn}] #{o.ln} {#{o.node}}"
             case o.ln
             when 1
               h=[o.ln,true,false,false]
@@ -149,37 +150,37 @@ module SiSU_XML_Scaffold_Structure_Sisu
       def structure_build_tag_close(lev,h)
         case h[0]
         when 1
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) && h[1]
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1) && h[1]
           puts "</#{@s[0]}>"         if (lev==0)
         when 2
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) && h[2]
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) && h[1]
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2) && h[2]
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1) && h[1]
           puts "</#{@s[0]}>"         if (lev==0)
         when 3
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3) && h[3]
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) && h[2]
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) && h[1]
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3) && h[3]
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2) && h[2]
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1) && h[1]
           puts "</#{@s[0]}>"         if (lev==0)
         when 4
-          puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3) && h[3]
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) && h[2]
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) && h[1]
+          puts "#{spaces*4}</#{@s[4]}>" if (lev <= 4)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3) && h[3]
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2) && h[2]
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1) && h[1]
           puts "</#{@s[0]}>"         if (lev==0)
         when 5
-          puts "#{@sp*5}</#{@s[5]}>" if (lev <= 5)
-          puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3) && h[3]
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) && h[2]
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) && h[1]
+          puts "#{spaces*5}</#{@s[5]}>" if (lev <= 5)
+          puts "#{spaces*4}</#{@s[4]}>" if (lev <= 4)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3) && h[3]
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2) && h[2]
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1) && h[1]
           puts "</#{@s[0]}>"         if (lev==0)
         when 6
-          puts "#{@sp*6}</#{@s[6]}>" if (lev <= 6)
-          puts "#{@sp*5}</#{@s[5]}>" if (lev <= 5)
-          puts "#{@sp*4}</#{@s[4]}>" if (lev <= 4)
-          puts "#{@sp*3}</#{@s[3]}>" if (lev <= 3) && h[3]
-          puts "#{@sp*2}</#{@s[2]}>" if (lev <= 2) && h[2]
-          puts "#{@sp*1}</#{@s[1]}>" if (lev <= 1) && h[1]
+          puts "#{spaces*6}</#{@s[6]}>" if (lev <= 6)
+          puts "#{spaces*5}</#{@s[5]}>" if (lev <= 5)
+          puts "#{spaces*4}</#{@s[4]}>" if (lev <= 4)
+          puts "#{spaces*3}</#{@s[3]}>" if (lev <= 3) && h[3]
+          puts "#{spaces*2}</#{@s[2]}>" if (lev <= 2) && h[2]
+          puts "#{spaces*1}</#{@s[1]}>" if (lev <= 1) && h[1]
           puts "</#{@s[0]}>"         if (lev==0)
         end
       end