From 335008e55553da03b630b1ac4b158c9c43b49e07 Mon Sep 17 00:00:00 2001
From: Ralph Amissah <ralph@amissah.com>
Date: Tue, 25 Jun 2013 00:06:57 -0400
Subject: v5: "general code cleaning" fix

---
 lib/sisu/v5/dal_doc_str.rb | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

(limited to 'lib')

diff --git a/lib/sisu/v5/dal_doc_str.rb b/lib/sisu/v5/dal_doc_str.rb
index 971f9f67..70c2e61f 100644
--- a/lib/sisu/v5/dal_doc_str.rb
+++ b/lib/sisu/v5/dal_doc_str.rb
@@ -452,17 +452,19 @@ module SiSU_DAL_DocumentStructureExtract
           and t_o !~/^(?:\}(?:verse|code|alt|group|block)|(?:verse|code|alt|group|block)\{)/ # fix logic
             sub_array=t_o.dup
             @line_mode=sub_array.scan(/.+/)
-            type='poem' if @@flag['poem']
-            t_o=SiSU_DAL_DocumentStructureExtract::Build.new(@md,@line_mode).build_lines(type).join
-            poem=t_o.split(/\n\n/)
-            poem.each do |v|
-              v=v.gsub(/\n/m,"#{Mx[:br_nl]}\n")
-              obj,tags=extract_tags(v)
-              h={ obj: obj, tags: tags }
-              t_o=SiSU_DAL_DocumentStructure::ObjectBlockTxt.new.verse(h)
-              tuned_file << t_o
+            type=if @@flag['poem']
+              t_o=SiSU_DAL_DocumentStructureExtract::Build.new(@md,@line_mode).build_lines(type).join
+              poem=t_o.split(/\n\n/)
+              poem.each do |v|
+                v=v.gsub(/\n/m,"#{Mx[:br_nl]}\n")
+                obj,tags=extract_tags(v)
+                h={ obj: obj, tags: tags }
+                t_o=SiSU_DAL_DocumentStructure::ObjectBlockTxt.new.verse(h)
+                tuned_file << t_o
+              end
+              'poem'
+            else 'group'
             end
-          else 'group'
           end
           @verse_count+=1 if @@flag['poem']
         end
-- 
cgit v1.2.3


From c25fc2751886278a4e7f30f127e80449160a47f1 Mon Sep 17 00:00:00 2001
From: Ralph Amissah <ralph@amissah.com>
Date: Tue, 25 Jun 2013 00:07:44 -0400
Subject: v4: general code cleaning, sync with v5

---
 lib/sisu/v4/cgi_pgsql.rb               |   2 +-
 lib/sisu/v4/composite.rb               |   8 +-
 lib/sisu/v4/concordance.rb             |   5 +-
 lib/sisu/v4/conf.rb                    |   1 -
 lib/sisu/v4/css.rb                     |   1 -
 lib/sisu/v4/dal.rb                     |   1 -
 lib/sisu/v4/dal_doc_objects.rb         |   6 +-
 lib/sisu/v4/dal_doc_str.rb             |  43 ++++-----
 lib/sisu/v4/dal_endnotes.rb            |   2 +-
 lib/sisu/v4/dal_expand_insertions.rb   | 109 +++++++++++------------
 lib/sisu/v4/dal_hash_digest.rb         |  12 ++-
 lib/sisu/v4/dal_idx.rb                 |   3 +-
 lib/sisu/v4/dal_numbering.rb           |  16 ++--
 lib/sisu/v4/dal_syntax.rb              |   2 +-
 lib/sisu/v4/db_columns.rb              | 156 ++++++++++++++++----------------
 lib/sisu/v4/db_import.rb               |  17 ++--
 lib/sisu/v4/db_select.rb               |   2 +-
 lib/sisu/v4/dbi.rb                     |   1 -
 lib/sisu/v4/dbi_discrete.rb            |   3 +-
 lib/sisu/v4/defaults.rb                |   7 +-
 lib/sisu/v4/digests.rb                 |  42 +++++----
 lib/sisu/v4/embedded.rb                |   3 -
 lib/sisu/v4/epub.rb                    |  11 +--
 lib/sisu/v4/epub_concordance.rb        |   3 -
 lib/sisu/v4/epub_format.rb             |  58 ++++++------
 lib/sisu/v4/epub_segments.rb           |   8 +-
 lib/sisu/v4/epub_tune.rb               |   2 +-
 lib/sisu/v4/git.rb                     |   4 +-
 lib/sisu/v4/harvest_authors.rb         |  34 ++++---
 lib/sisu/v4/harvest_topics.rb          | 158 ++++++++++++++++-----------------
 lib/sisu/v4/html.rb                    |  14 ++-
 lib/sisu/v4/html_format.rb             |  16 ++--
 lib/sisu/v4/html_minitoc.rb            |   7 +-
 lib/sisu/v4/html_promo.rb              |  17 ++--
 lib/sisu/v4/html_scroll.rb             |   4 +-
 lib/sisu/v4/html_segments.rb           |  12 ++-
 lib/sisu/v4/html_tune.rb               |   4 +-
 lib/sisu/v4/hub.rb                     |   7 +-
 lib/sisu/v4/manifest.rb                |  11 +--
 lib/sisu/v4/manpage.rb                 |  22 +----
 lib/sisu/v4/odf.rb                     |  31 ++-----
 lib/sisu/v4/odf_format.rb              |   6 +-
 lib/sisu/v4/options.rb                 |  77 ++++++++--------
 lib/sisu/v4/param.rb                   |  14 ++-
 lib/sisu/v4/param_identify_markup.rb   |   5 --
 lib/sisu/v4/param_make.rb              |  14 ++-
 lib/sisu/v4/plaintext.rb               |   7 +-
 lib/sisu/v4/po4a.rb                    | 137 ++++++++++++++--------------
 lib/sisu/v4/po4a_set.rb                |  18 ++--
 lib/sisu/v4/prog_text_translation.rb   |  14 +--
 lib/sisu/v4/qrcode.rb                  |  26 +-----
 lib/sisu/v4/remote.rb                  |   5 +-
 lib/sisu/v4/share_src_kdissert.rb      |   1 -
 lib/sisu/v4/shared_html_lite.rb        |   2 +-
 lib/sisu/v4/shared_markup_alt.rb       |   6 +-
 lib/sisu/v4/shared_metadata.rb         |   6 +-
 lib/sisu/v4/shared_sisupod_source.rb   |   1 -
 lib/sisu/v4/shared_txt.rb              |   8 +-
 lib/sisu/v4/shared_xml.rb              |   7 +-
 lib/sisu/v4/sitemaps.rb                |  10 +--
 lib/sisu/v4/spell.rb                   |   2 +-
 lib/sisu/v4/sst_do_inline_footnotes.rb |   8 +-
 lib/sisu/v4/sst_to_s_xml_sax.rb        |  12 +--
 lib/sisu/v4/sysenv.rb                  | 131 ++++++++++++---------------
 lib/sisu/v4/termsheet.rb               |   2 -
 lib/sisu/v4/texinfo.rb                 |   8 +-
 lib/sisu/v4/texinfo_format.rb          |  12 +--
 lib/sisu/v4/texpdf.rb                  |  14 +--
 lib/sisu/v4/texpdf_format.rb           |  16 ++--
 lib/sisu/v4/update.rb                  |   2 +-
 lib/sisu/v4/urls.rb                    |   6 +-
 lib/sisu/v4/webrick.rb                 |   3 +-
 lib/sisu/v4/wikispeak.rb               |  16 +---
 lib/sisu/v4/xhtml.rb                   |   8 +-
 lib/sisu/v4/xml.rb                     |   6 +-
 lib/sisu/v4/xml_dom.rb                 |  17 +---
 lib/sisu/v4/xml_fictionbook.rb         |   3 +-
 lib/sisu/v4/xml_format.rb              |  11 +--
 lib/sisu/v4/xml_scaffold.rb            |   1 -
 lib/sisu/v4/zap.rb                     |   1 -
 80 files changed, 632 insertions(+), 876 deletions(-)

(limited to 'lib')

diff --git a/lib/sisu/v4/cgi_pgsql.rb b/lib/sisu/v4/cgi_pgsql.rb
index 0c8f42d6..162f20cc 100644
--- a/lib/sisu/v4/cgi_pgsql.rb
+++ b/lib/sisu/v4/cgi_pgsql.rb
@@ -111,7 +111,7 @@ module  SiSU_CGI_PgSQL
         else STDERR.puts "WARNING: no postgresql database available, (have you created one?)"
         end
         serve=serve.sort
-        f1,f2,f3='','',''
+        f1,f2='',''
         serve.each do |x|
           f1 << %{              <option value="#{Db[:name_prefix]}#{x}">#{x}</option>\n} unless x =~/apache|sisu\/image/ #check
         end
diff --git a/lib/sisu/v4/composite.rb b/lib/sisu/v4/composite.rb
index f69fe2e4..c2ba1fe1 100644
--- a/lib/sisu/v4/composite.rb
+++ b/lib/sisu/v4/composite.rb
@@ -164,7 +164,7 @@ module SiSU_Assemble
       data=@fns_array
       tuned_file,imagedir=[],[]
       SiSU_Screen::Ansi.new(@opt.cmd,'Composite Document',"[#{@opt.f_pth[:lng_is]}] #{@opt.fno}").grey_title_hi unless @opt.cmd =~/q/
-      para=data.each do |para|
+      data.each do |para|
         if para =~/^<<\s+(\S+?\.ss[it])$/ \
         or para =~/^<<\{(\S+?\.ss[it])\}$/ \
         or para =~/^(?:<<\s*)\|(\S+?)\|@\|.+?\|(?:req(?:quire)?\b|\s*\})?/ \
@@ -218,7 +218,7 @@ module SiSU_Assemble
       begin
         @opt.fns=@opt.fns.gsub(/\.ssm\.sst$/,'.ssm') #FIX earlier, hub
         @fns_array=IO.readlines(@opt.fns,'')
-        files=insertions?
+        insertions?
       rescue
         SiSU_Errors::InfoError.new($!,$@,@opt.cmd,@opt.fns).error do
           __LINE__.to_s + ':' + __FILE__
@@ -228,10 +228,10 @@ module SiSU_Assemble
     end
     def insertions?
       data=@fns_array
-      tuned_file,imagedir=[],[]
+      tuned_file=[]
       SiSU_Screen::Ansi.new(@opt.cmd,'Composite Document',@opt.fno).grey_title_hi unless @opt.cmd =~/q/
       @ssm=[@opt.fns]
-      para=data.each do |para|
+      data.each do |para|
         if para =~/^<<\s+(\S+?\.ss[it])$/
           loadfile=$1.strip
           SiSU_Screen::Ansi.new(@opt.cmd,'loading:',loadfile).txt_grey if @opt.cmd =~/[MVv]/
diff --git a/lib/sisu/v4/concordance.rb b/lib/sisu/v4/concordance.rb
index c7a77a36..cba5ae99 100644
--- a/lib/sisu/v4/concordance.rb
+++ b/lib/sisu/v4/concordance.rb
@@ -78,7 +78,7 @@ module SiSU_Concordance
     def read
       begin
         @env,@md=@particulars.env,@particulars.md
-        loc=@env.url.output_tell
+        @env.url.output_tell
         unless @md.opt.cmd =~/q/
           tool=(@md.opt.cmd =~/[MVv]/) \
           ? "#{@env.program.web_browser} #{@md.file.output_path.html_concordance.dir}/#{@md.file.base_filename.html_concordance}"
@@ -116,7 +116,6 @@ module SiSU_Concordance
         @particulars,@md=particulars,particulars.md
         @data=SiSU_HTML::Source::HTML_Environment.new(particulars).tuned_file_instructions
         @file=SiSU_Env::FileOp.new(@md)
-        txt_path=%{#{@md.dir_out}}
         @fnb=@md.fnb
         @lex_button=%{<a href="http://www.jus.uio.no/sisu/" target="_top"><img border="0" height="44" width="144" valign="center" src="#{@file.path_rel_links.html_seg_2}_sisu/image/sisu.png" alt="SiSU home --&gt;"></a>}
         @doc_details =<<WOK
@@ -334,7 +333,6 @@ WOK
             end
           end
         end
-        scr='<font size="1" color="#777777" face=times new roman><img border="0" height="15" width="15" src="../_sisu/image/b_doc.png" alt="Full Text">&nbsp;scroll:&nbsp;</font><font size="1" color="#222222" face=times new roman>doc#&nbsp;</font> '
         seg=''
         head=SiSU_Concordance::Source::DocTitle.new(@particulars).create
         head=head.gsub(/#{Xx[:html_relative2]}/m,@file.path_rel_links.html_seg_2).
@@ -360,7 +358,6 @@ WOK
           keyword=SiSU_Concordance::Source::Word.new(word,@freq[word]).html
           if keyword !~ @rxp_excluded0
             if @word_map[word][0] =~ /\d+/
-              wm=[]
               @file_concordance << %{#{keyword}#{seg}#{@word_map[word].uniq.compact.join}}
             end
             @file_concordance << '</p>'
diff --git a/lib/sisu/v4/conf.rb b/lib/sisu/v4/conf.rb
index f99fc539..8ede007d 100644
--- a/lib/sisu/v4/conf.rb
+++ b/lib/sisu/v4/conf.rb
@@ -245,7 +245,6 @@ module SiSU_Initialize
     end
     def trang_rnc_model_input_node
       rnc_file=@env.processing_path.dal + '/node.rnc'
-      rng_file=@env.processing_path.dal + '/node.rng'
       dtd_file=@path[:xsd] + '/' + @rxng.rng_name.input_node
       rnc=File.new(rnc_file,'w')
       rnc << @rxng.rnc_model_input_node
diff --git a/lib/sisu/v4/css.rb b/lib/sisu/v4/css.rb
index ae5e3bc1..f406cf97 100644
--- a/lib/sisu/v4/css.rb
+++ b/lib/sisu/v4/css.rb
@@ -93,7 +93,6 @@ module SiSU_Style
         WOK
       end
       def css_action
-        style_css=SiSU_Style::CSS.new
         css=case @ft
         when 'html'
           css=css_embed_content.html
diff --git a/lib/sisu/v4/dal.rb b/lib/sisu/v4/dal.rb
index 47d64ae7..e8574528 100644
--- a/lib/sisu/v4/dal.rb
+++ b/lib/sisu/v4/dal.rb
@@ -117,7 +117,6 @@ module SiSU_DAL
     end
     def read                                                                   #creates dal
       begin
-        dal=[]
         @@dal_array=[]
         @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
         ? @fnx
diff --git a/lib/sisu/v4/dal_doc_objects.rb b/lib/sisu/v4/dal_doc_objects.rb
index d44eb0c3..12441156 100644
--- a/lib/sisu/v4/dal_doc_objects.rb
+++ b/lib/sisu/v4/dal_doc_objects.rb
@@ -62,7 +62,7 @@
 module SiSU_DAL_DocumentStructure
   class Extract
     def extract(h,o)
-      obj=h ? h : o
+      h ? h : o
     end
   end
   class ObjectMetadata
@@ -106,7 +106,7 @@ module SiSU_DAL_DocumentStructure
       @tags=[]
     end
     def heading_ln(lv)
-      ln=case lv
+      case lv
       when /A/; 1
       when /B/; 2
       when /C/; 3
@@ -119,7 +119,7 @@ module SiSU_DAL_DocumentStructure
       end
     end
     def heading_lv(ln)
-      lv=case ln.to_s
+      case ln.to_s
       when /1/; 'A'
       when /2/; 'B'
       when /3/; 'C'
diff --git a/lib/sisu/v4/dal_doc_str.rb b/lib/sisu/v4/dal_doc_str.rb
index 25c6f854..1eeae2da 100644
--- a/lib/sisu/v4/dal_doc_str.rb
+++ b/lib/sisu/v4/dal_doc_str.rb
@@ -78,7 +78,7 @@ module SiSU_DAL_DocumentStructureExtract
       @pbl=SiSU_DAL_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_line])
     end
     def ln_get(lv)
-      ln=case lv
+      case lv
       when /A/; 1
       when /B/; 2
       when /C/; 3
@@ -91,10 +91,14 @@ module SiSU_DAL_DocumentStructureExtract
       end
     end
     def image_test(str)
-      boolean=(str=~/\{\s*\S+?\.png.+?\}https?:\/\/\S+/ ? true : false)
+      str=~/\{\s*\S+?\.png.+?\}https?:\/\/\S+/ \
+      ? true
+      : false
     end
     def bullet_test(str)
-      bool=((str=~/\*/) ? true : false)
+      (str=~/\*/) \
+      ? true
+      : false
     end
     def hang_and_indent_test(str)
       hang_indent=if str=~/^_([1-9])[^_]/
@@ -128,7 +132,9 @@ module SiSU_DAL_DocumentStructureExtract
       [hang,indent,obj]
     end
     def endnote_test?(str)
-      bool=((str=~/~\{.+?\}~|~\[.+?\]~/) ? true : false)
+      (str=~/~\{.+?\}~|~\[.+?\]~/) \
+      ? true
+      : false
     end
     def extract_tags(str,nametag=nil)
       tags=[]
@@ -146,7 +152,6 @@ module SiSU_DAL_DocumentStructureExtract
       [str,tags]
     end
     def identify_parts
-      data=@data
       tuned_file=[]
       @tuned_block,@tuned_code=[],[]
       @@counter,@verse_count=0,0
@@ -365,7 +370,6 @@ module SiSU_DAL_DocumentStructureExtract
             t_o=SiSU_DAL_DocumentStructure::ObjectTable.new.table(@h)
             tuned_file << t_o
             @h,@rows=nil,''
-            t_o
             h={ obj: 'table end' }                          #introduce a counter
             t_o=SiSU_DAL_DocumentStructure::ObjectComment.new.comment(h) #t_o=SiSU_DAL_DocumentStructure::ObjectLayout.new.insert(h)
             t_o
@@ -448,20 +452,21 @@ module SiSU_DAL_DocumentStructureExtract
           and t_o !~/^(?:\}(?:verse|code|alt|group|block)|(?:verse|code|alt|group|block)\{)/ # fix logic
             sub_array=t_o.dup
             @line_mode=sub_array.scan(/.+/)
-            type=if @@flag['poem']; 'poem'
-            t_o=SiSU_DAL_DocumentStructureExtract::Build.new(@md,@line_mode).build_lines(type).join
-            poem=t_o.split(/\n\n/)
-            poem.each do |v|
-              v=v.gsub(/\n/m,"#{Mx[:br_nl]}\n")
-              obj,tags=extract_tags(v)
-              h={ obj: obj, tags: tags }
-              t_o=SiSU_DAL_DocumentStructure::ObjectBlockTxt.new.verse(h)
-              tuned_file << t_o
-            end
+            type=if @@flag['poem']
+              t_o=SiSU_DAL_DocumentStructureExtract::Build.new(@md,@line_mode).build_lines(type).join
+              poem=t_o.split(/\n\n/)
+              poem.each do |v|
+                v=v.gsub(/\n/m,"#{Mx[:br_nl]}\n")
+                obj,tags=extract_tags(v)
+                h={ obj: obj, tags: tags }
+                t_o=SiSU_DAL_DocumentStructure::ObjectBlockTxt.new.verse(h)
+                tuned_file << t_o
+              end
+              'poem'
             else 'group'
             end
-            @verse_count+=1 if @@flag['poem']
           end
+          @verse_count+=1 if @@flag['poem']
         end
         if not @@flag['code']
           if @@flag['poem'] \
@@ -507,7 +512,6 @@ module SiSU_DAL_DocumentStructureExtract
       tuned_file << SiSU_DAL_DocumentStructure::ObjectHeading.new.heading_insert(h)
       h={ ln: 4, obj: 'SiSU Metadata, document information', name: 'metadata', autonum_: false, ocn_: false }
       tuned_file << SiSU_DAL_DocumentStructure::ObjectHeading.new.heading_insert(h)
-      tuned_file
       h={ obj: 'eof' }
       meta=SiSU_DAL_DocumentStructure::ObjectMetadata.new.metadata(@metadata)
       [tuned_file,meta]
@@ -597,8 +601,7 @@ module SiSU_DAL_DocumentStructureExtract
     def ocn                                                                      #and auto segment numbering increment
       data=@data
       @o_array=[]
-      node=ocn=ocn_dv=ocn_sp=ocnh=ocnh1=ocnh2=ocnh3=ocnh4=ocnh5=ocnh6=ocno=ocnp=ocnt=ocnc=ocng=ocni=ocnm=ocnu=ocnk=nm=0 # h heading, o other, t table, g group, i image
-      node_count_flag=false
+      node=ocn=ocn_dv=ocn_sp=ocnh=ocnh1=ocnh2=ocnh3=ocnh4=ocnh5=ocnh6=ocno=ocnp=ocnt=ocnc=ocng=ocni=ocnu=0 # h heading, o other, t table, g group, i image
       regex_exclude_ocn_and_node = /#{Rx[:meta]}|^@\S+?:\s|^4~endnotes|^#{Mx[:lv_o]}4:endnotes#{Mx[:lv_c]}|^\^~ |<:e[:_]\d+?>|^<:\#|<:- |<[:!]!4|<hr width|#{Mx[:br_endnotes]}|\A\s*\Z/mi #ocn here #&nbsp; added with Tune.code #¡
       parent=node1=node2=node3=node4=node5=node6=nil
       data.each do |dob|
diff --git a/lib/sisu/v4/dal_endnotes.rb b/lib/sisu/v4/dal_endnotes.rb
index f14683d8..a32d02f7 100644
--- a/lib/sisu/v4/dal_endnotes.rb
+++ b/lib/sisu/v4/dal_endnotes.rb
@@ -68,7 +68,7 @@ module SiSU_DAL_Endnotes
     def endnotes
       data=@data
       @tuned_file=[]
-      endnote_no,endnote_ref=1,1
+      endnote_ref=1
       data.each do |dob|
                                                                                # manually numbered endnotes <!e(\d)!> <!e_(\d)!> -->
         if @md.opt.mod.inspect =~/--no-asterisk|--no-annotate/
diff --git a/lib/sisu/v4/dal_expand_insertions.rb b/lib/sisu/v4/dal_expand_insertions.rb
index cfa6cbeb..b8972489 100644
--- a/lib/sisu/v4/dal_expand_insertions.rb
+++ b/lib/sisu/v4/dal_expand_insertions.rb
@@ -272,82 +272,81 @@ module SiSU_DAL_Insertions
         if para !~/^%+\s/ \
         and not codeblock_ \
         and para =~/\{(?:~\^\s+)?(.+?)\s\[(?:\d(?:[sS]*))\]\}(?:\.\.\/\S+?\/|\S+?\.ss[tm]\b)/
-          txt,cmd,source,linked_doc,note,manifest=nil,nil,nil,nil,nil,nil
+          manifest=nil
           @u=SiSU_Env::InfoEnv.new.url
-          pre=txt=cmd=source=linked_doc=note=''
           if defined? @u.remote
-            if /(?<pre>.+?)\{(?<txt>.+?)\s\[(?<cmd>\d[sS]*)\]\}(?<source>(?<linked_doc>\S+?)\.ss[tm]\b)(?<note>.*)/m =~ para
-              pre=pre.strip
-            elsif /\{(?<txt>.+?)\s\[(?<cmd>\d[sS]*)\]\}(?<source>(?<linked_doc>\S+?)\.ss[tm]\b)(?<note>.*)/m =~ para
+            if /(?<m_pre>.+?)\{(?<m_txt>.+?)\s\[(?<m_cmd>\d[sS]*)\]\}(?<m_source>(?<m_linked_doc>\S+?)\.ss[tm]\b)(?<m_note>.*)/m =~ para
+              m_pre=m_pre.strip
+            elsif /\{(?<m_txt>.+?)\s\[(?<m_cmd>\d[sS]*)\]\}(?<m_source>(?<m_linked_doc>\S+?)\.ss[tm]\b)(?<m_note>.*)/m =~ para
             end
-            if linked_doc =~ /(\S+?)\/(\S+)/
-              linked_doc,linked_doc_lang=$1,$2
+            if m_linked_doc =~ /(\S+?)\/(\S+)/
+              m_linked_doc,m_linked_doc_lang=$1,$2
             else
-              linked_doc,linked_doc_lang=linked_doc,@md.opt.lng_base
+              m_linked_doc,m_linked_doc_lang=m_linked_doc,@md.opt.lng_base
             end
           else
             puts "error, does currently support relative paths (reltive paths were removed, as had problems for citation, and was not suited to all output types should possibly reconsider) #{__FILE__} #{__LINE__}"
-            if /\{(?:~\^\s+)?(?<txt>.+?)\s\[(?<cmd>\d[sS]*)\]\}\.\.\/(?<linked_doc>\S+?)\/(?<note>\s+#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]})?/ =~ para
+            if /\{(?:~\^\s+)?(?<m_txt>.+?)\s\[(?<m_cmd>\d[sS]*)\]\}\.\.\/(?<m_linked_doc>\S+?)\/(?<m_note>\s+#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]})?/ =~ para
             end
           end
           lnk={}
           case @md.opt.dir_structure_by
           when :language
             lnk={
-              manifest:         by_language(linked_doc,linked_doc_lang).manifest,
-              html_toc:         by_language(linked_doc,linked_doc_lang).html_toc,
-              html_doc:         by_language(linked_doc,linked_doc_lang).html_doc,
-              epub:             by_language(linked_doc,linked_doc_lang).epub,
-              pdf_landscape:    by_language(linked_doc,linked_doc_lang).pdf_landscape,
-              pdf_portrait:     by_language(linked_doc,linked_doc_lang).pdf_landscape,
-              odt:              by_language(linked_doc,linked_doc_lang).odt,
-              xhtml:            by_language(linked_doc,linked_doc_lang).xhtml,
-              xml_sax:          by_language(linked_doc,linked_doc_lang).xml_sax,
-              xml_dom:          by_language(linked_doc,linked_doc_lang).xml_dom,
-              txt:              by_language(linked_doc,linked_doc_lang).txt,
-              html_concordance: by_language(linked_doc,linked_doc_lang).html_concordance,
-              digest:           by_language(linked_doc,linked_doc_lang).digest,
-              sisupod:          by_language(linked_doc,linked_doc_lang,source).sisupod,
-              source:           by_language(linked_doc,linked_doc_lang,source).source,
+              manifest:         by_language(m_linked_doc,m_linked_doc_lang).manifest,
+              html_toc:         by_language(m_linked_doc,m_linked_doc_lang).html_toc,
+              html_doc:         by_language(m_linked_doc,m_linked_doc_lang).html_doc,
+              epub:             by_language(m_linked_doc,m_linked_doc_lang).epub,
+              pdf_landscape:    by_language(m_linked_doc,m_linked_doc_lang).pdf_landscape,
+              pdf_portrait:     by_language(m_linked_doc,m_linked_doc_lang).pdf_landscape,
+              odt:              by_language(m_linked_doc,m_linked_doc_lang).odt,
+              xhtml:            by_language(m_linked_doc,m_linked_doc_lang).xhtml,
+              xml_sax:          by_language(m_linked_doc,m_linked_doc_lang).xml_sax,
+              xml_dom:          by_language(m_linked_doc,m_linked_doc_lang).xml_dom,
+              txt:              by_language(m_linked_doc,m_linked_doc_lang).txt,
+              html_concordance: by_language(m_linked_doc,m_linked_doc_lang).html_concordance,
+              digest:           by_language(m_linked_doc,m_linked_doc_lang).digest,
+              sisupod:          by_language(m_linked_doc,m_linked_doc_lang,source).sisupod,
+              source:           by_language(m_linked_doc,m_linked_doc_lang,source).source,
             }
           when :filetype
             lnk={
-              manifest:         by_filetype(linked_doc,linked_doc_lang).manifest,
-              html_toc:         by_filetype(linked_doc,linked_doc_lang).html_toc,
-              html_doc:         by_filetype(linked_doc,linked_doc_lang).html_doc,
-              epub:             by_filetype(linked_doc,linked_doc_lang).epub,
-              pdf_landscape:    by_filetype(linked_doc,linked_doc_lang).pdf_landscape,
-              pdf_portrait:     by_filetype(linked_doc,linked_doc_lang).pdf_landscape,
-              odt:              by_filetype(linked_doc,linked_doc_lang).odt,
-              xhtml:            by_filetype(linked_doc,linked_doc_lang).xhtml,
-              xml_sax:          by_filetype(linked_doc,linked_doc_lang).xml_sax,
-              xml_dom:          by_filetype(linked_doc,linked_doc_lang).xml_dom,
-              txt:              by_filetype(linked_doc,linked_doc_lang).txt,
-              html_concordance: by_filetype(linked_doc,linked_doc_lang).html_concordance,
-              digest:           by_filetype(linked_doc,linked_doc_lang).digest,
-              sisupod:          by_filetype(linked_doc,linked_doc_lang,source).sisupod,
-              source:           by_filetype(linked_doc,linked_doc_lang,source).source,
+              manifest:         by_filetype(m_linked_doc,m_linked_doc_lang).manifest,
+              html_toc:         by_filetype(m_linked_doc,m_linked_doc_lang).html_toc,
+              html_doc:         by_filetype(m_linked_doc,m_linked_doc_lang).html_doc,
+              epub:             by_filetype(m_linked_doc,m_linked_doc_lang).epub,
+              pdf_landscape:    by_filetype(m_linked_doc,m_linked_doc_lang).pdf_landscape,
+              pdf_portrait:     by_filetype(m_linked_doc,m_linked_doc_lang).pdf_landscape,
+              odt:              by_filetype(m_linked_doc,m_linked_doc_lang).odt,
+              xhtml:            by_filetype(m_linked_doc,m_linked_doc_lang).xhtml,
+              xml_sax:          by_filetype(m_linked_doc,m_linked_doc_lang).xml_sax,
+              xml_dom:          by_filetype(m_linked_doc,m_linked_doc_lang).xml_dom,
+              txt:              by_filetype(m_linked_doc,m_linked_doc_lang).txt,
+              html_concordance: by_filetype(m_linked_doc,m_linked_doc_lang).html_concordance,
+              digest:           by_filetype(m_linked_doc,m_linked_doc_lang).digest,
+              sisupod:          by_filetype(m_linked_doc,m_linked_doc_lang,source).sisupod,
+              source:           by_filetype(m_linked_doc,m_linked_doc_lang,source).source,
             }
           else
             lnk={
-              manifest:         by_filename(linked_doc,linked_doc_lang).manifest,
-              html_toc:         by_filename(linked_doc,linked_doc_lang).html_toc,
-              html_doc:         by_filename(linked_doc,linked_doc_lang).html_doc,
-              epub:             by_filename(linked_doc,linked_doc_lang).epub,
-              pdf_landscape:    by_filename(linked_doc,linked_doc_lang).pdf_landscape,
-              pdf_portrait:     by_filename(linked_doc,linked_doc_lang).pdf_landscape,
-              odt:              by_filename(linked_doc,linked_doc_lang).odt,
-              xhtml:            by_filename(linked_doc,linked_doc_lang).xhtml,
-              xml_sax:          by_filename(linked_doc,linked_doc_lang).xml_sax,
-              xml_dom:          by_filename(linked_doc,linked_doc_lang).xml_dom,
-              txt:              by_filename(linked_doc,linked_doc_lang).txt,
-              html_concordance: by_filename(linked_doc,linked_doc_lang).html_concordance,
-              digest:           by_filename(linked_doc,linked_doc_lang).digest,
-              sisupod:          by_filename(linked_doc,linked_doc_lang,source).sisupod,
-              source:           by_filename(linked_doc,linked_doc_lang,source).source,
+              manifest:         by_filename(m_linked_doc,m_linked_doc_lang).manifest,
+              html_toc:         by_filename(m_linked_doc,m_linked_doc_lang).html_toc,
+              html_doc:         by_filename(m_linked_doc,m_linked_doc_lang).html_doc,
+              epub:             by_filename(m_linked_doc,m_linked_doc_lang).epub,
+              pdf_landscape:    by_filename(m_linked_doc,m_linked_doc_lang).pdf_landscape,
+              pdf_portrait:     by_filename(m_linked_doc,m_linked_doc_lang).pdf_landscape,
+              odt:              by_filename(m_linked_doc,m_linked_doc_lang).odt,
+              xhtml:            by_filename(m_linked_doc,m_linked_doc_lang).xhtml,
+              xml_sax:          by_filename(m_linked_doc,m_linked_doc_lang).xml_sax,
+              xml_dom:          by_filename(m_linked_doc,m_linked_doc_lang).xml_dom,
+              txt:              by_filename(m_linked_doc,m_linked_doc_lang).txt,
+              html_concordance: by_filename(m_linked_doc,m_linked_doc_lang).html_concordance,
+              digest:           by_filename(m_linked_doc,m_linked_doc_lang).digest,
+              sisupod:          by_filename(m_linked_doc,m_linked_doc_lang,source).sisupod,
+              source:           by_filename(m_linked_doc,m_linked_doc_lang,source).source,
             }
           end
-          linked_title="#{pre}{#{txt} }#{lnk[:manifest]}#{note}\n\n"
+          linked_title="#{m_pre}{#{m_txt} }#{lnk[:manifest]}#{m_note}\n\n"
           tuned_file_tmp << linked_title
           output_filetypes=output_filetypes_in_cmd(cmd,lnk)
           output_filetypes[:gen].each do |o_f|
diff --git a/lib/sisu/v4/dal_hash_digest.rb b/lib/sisu/v4/dal_hash_digest.rb
index 338075e6..9c3f2d14 100644
--- a/lib/sisu/v4/dal_hash_digest.rb
+++ b/lib/sisu/v4/dal_hash_digest.rb
@@ -121,14 +121,13 @@ module SiSU_DAL_Hash
     end
     def stamped(t_o,hash_class) #decide what hash information is most useful, is compromise necessary?
       t_o.obj=SiSU_TextRepresentation::Alter.new(t_o).strip_clean_of_extra_spaces
-      t_obj=t_o.inspect.sub(/:0x[0-9a-f]{8}\s/,': ')
-      stripped=SiSU_TextRepresentation::Alter.new(t_o).strip_clean_of_markup
-      markup=SiSU_TextRepresentation::Alter.new(t_o).semi_revert_markup
-      digests=SiSU_TextRepresentation::ModifiedTextPlusHashDigest.new(@md,t_o).composite.dgst
+      #SiSU_TextRepresentation::Alter.new(t_o).strip_clean_of_markup                      #check
+      #SiSU_TextRepresentation::Alter.new(t_o).semi_revert_markup                         #check
+      #SiSU_TextRepresentation::ModifiedTextPlusHashDigest.new(@md,t_o).composite.dgst    #check
       unless t_o.is==:code
         case t_o.obj
         when /#{Mx[:en_a_o]}[\d*+]+\s+.+?#{Mx[:en_a_c]}|#{Mx[:en_b_o]}[*+]\d+\s+.+?#{Mx[:en_b_c]}/m
-          en_and_t_o,en_and_t_o_digest=[],[]
+          en_and_t_o_digest=[]
           t_o.obj=t_o.obj.gsub(/\s*(#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/m,' \1') #watch
           t_o_plus_en=t_o.obj.scan(/.*?#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|.*?#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]}/m)
           t_o_tail=if t_o.obj =~/(?:.*?#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}|.*?#{Mx[:en_b_o]}.+?#{Mx[:en_b_c]})+([\s\S]+)/m
@@ -137,8 +136,7 @@ module SiSU_DAL_Hash
           end
           t_o_plus_en << t_o_tail
           en_and_t_o_digest << endnote_digest(t_o_plus_en)
-          t_o_new=en_and_t_o_digest.join(' ')
-          #@tuned << t_o_new + Mx[:id_o] + digest_strip + ':' + digest_all + Mx[:id_c] unless t_o.nil?
+          en_and_t_o_digest.join(' ')
         else #@tuned << t_o + Mx[:id_o] + digest_strip + ':' + digest_all + Mx[:id_c] unless t_o.nil?
         end
       else #@tuned << t_o + Mx[:id_o] + digest_strip + ':' + digest_all + Mx[:id_c] unless t_o.nil?
diff --git a/lib/sisu/v4/dal_idx.rb b/lib/sisu/v4/dal_idx.rb
index 87196029..96486858 100644
--- a/lib/sisu/v4/dal_idx.rb
+++ b/lib/sisu/v4/dal_idx.rb
@@ -130,7 +130,7 @@ module SiSU_DAL_BookIndex
           idx_lst=idx[:rough_idx].scan(/[^|:]+/)
           idx_lst[0]=idx_lst[0].strip
           if idx_lst[0] =~/.+?\+\d+/
-            use,plus=/(.+?)\+(\d+)/.match(idx_lst[0])[1,2]
+            use=/(.+?)\+(?:\d+)/.match(idx_lst[0])[1]
           else use=idx_lst[0]
           end
           use=use[0].chr.capitalize + use[1,use.length]
@@ -282,7 +282,6 @@ module SiSU_DAL_BookIndex
                 end
               end
             end
-            idx
             @x +=1
           end
         end
diff --git a/lib/sisu/v4/dal_numbering.rb b/lib/sisu/v4/dal_numbering.rb
index 258911d2..c2ac6785 100644
--- a/lib/sisu/v4/dal_numbering.rb
+++ b/lib/sisu/v4/dal_numbering.rb
@@ -134,11 +134,10 @@ module SiSU_DAL_Numbering
         input||=@md.make.num_top
       end
       num_top=(input ? input.to_i : nil)
-      t_no1=t_no2=t_no3=t_no4=0
+      t_no1=t_no2=t_no3=0
       if num_top
-        no1=num_top; no2=(num_top + 1); no3=(num_top + 2);  no4=(num_top + 3)
+        no1=num_top; no2=(num_top + 1); no3=(num_top + 2)
       end
-      t_not=0
       chapter_number_counter=0
       data=data.compact
       data.each do |dob| #@md.seg_names << [additions to segment names]
@@ -357,8 +356,8 @@ module SiSU_DAL_Numbering
           elsif @md.pageline.inspect =~/#{m}/
             dob_tmp << SiSU_DAL_DocumentStructure::ObjectLayout.new.break(Hx[:br_page_line]) << dob
           end
-          para_result=unless dob_tmp.length > 0; dob
-          else                                   dob_tmp
+          unless dob_tmp.length > 0; dob
+          else                       dob_tmp
           end
         else dob
         end
@@ -369,7 +368,7 @@ module SiSU_DAL_Numbering
           : @segname
           tags["#{dob.ocn}"]={ segname: @segname }
           ocn_html_seg[dob.ocn]=if (dob.is==:heading || dob.is==:heading_insert)
-            x=if dob.ln =~/[1-3]/
+            if dob.ln =~/[1-3]/
               { seg: nil, level: dob.ln }
             else #elsif dob.ln =~/[4-6]/
               { seg: @seg, level: dob.ln }
@@ -384,8 +383,8 @@ module SiSU_DAL_Numbering
           #@segname=((dob.is=='heading'|| dob.is=='heading_insert') && dob.ln==4 && (defined? dob.name)) \
           #? (dob.name) \
           #: @segname
-          dob.tags.each do |x|
-            tags[x]={ ocn: dob.ocn.to_s, segname: @segname }
+          dob.tags.each do |y|
+            tags[y]={ ocn: dob.ocn.to_s, segname: @segname }
           end
         end
         dob
@@ -393,7 +392,6 @@ module SiSU_DAL_Numbering
       ocn_html_seg.each_with_index do |ocn,i|
         if ocn \
         and ocn[:level].to_s=~/[1-3]/
-          ocn_seg=nil
           (1..4).each do |x|
             if ocn_html_seg[i+x] and ocn_html_seg[i+x][:level]==4
               ocn[:seg]=ocn_html_seg[i+x][:seg]
diff --git a/lib/sisu/v4/dal_syntax.rb b/lib/sisu/v4/dal_syntax.rb
index eeaca1a5..ed9fa52d 100644
--- a/lib/sisu/v4/dal_syntax.rb
+++ b/lib/sisu/v4/dal_syntax.rb
@@ -97,7 +97,7 @@ module SiSU_DAL_Syntax
       tail_m_ital=%q{(?:\s|[.,;:?!'")]|~\^|~\\\{\s|$)}
       tail_m_bold=%{(?:(?:#{Mx[:fa_italics_c]})?(?:\s|[.,;:?!'")]|~\^|~\\\{\s|$))?}
       bold_line=%{^!_\s.+?(?:#{Mx[:br_line]}|\n|$)}
-      ital_line=%{^/_\s.+?(?:#{Mx[:br_line]}|\n|$)}
+      #ital_line=%{^/_\s.+?(?:#{Mx[:br_line]}|\n|$)} #not implemented
       @line_scan_ital=if defined? @md.italics_match_list[:str]
         /#{@http_m}|#{bold_line}|#{@manmkp_ital}#{tail_m_ital}|#{@md.italics_match_list[:str]}#{tail_m_ital}|\S+|\n/i
       elsif defined? @vz.markup_make_italic[:str]
diff --git a/lib/sisu/v4/db_columns.rb b/lib/sisu/v4/db_columns.rb
index 8be23b44..5223aed8 100644
--- a/lib/sisu/v4/db_columns.rb
+++ b/lib/sisu/v4/db_columns.rb
@@ -50,7 +50,7 @@
 
  * Git
    <http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=summary>
-   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v4/db_columns.rb;hb=HEAD>
+   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v5/db_columns.rb;hb=HEAD>
 
  * Ralph Amissah
    <ralph@amissah.com>
@@ -109,7 +109,7 @@ module SiSU_DbColumns
             IS 'metadata full document title [DC1]';}
         end
         def tuple
-          t=if defined? @md.title.full \
+          if defined? @md.title.full \
           and @md.title.full=~/\S+/
             txt=@md.title.full
             txt=special_character_escape(txt)
@@ -131,7 +131,7 @@ module SiSU_DbColumns
             IS 'metadata main document title';}
         end
         def tuple
-          t=if defined? @md.title.main \
+          if defined? @md.title.main \
           and @md.title.main=~/\S+/
             txt=@md.title.main
             txt=special_character_escape(txt)
@@ -153,7 +153,7 @@ module SiSU_DbColumns
             IS 'metadata document subtitle';}
         end
         def tuple
-          t=if defined? @md.title.sub \
+          if defined? @md.title.sub \
           and @md.title.sub=~/\S+/
             txt=@md.title.sub
             txt=special_character_escape(txt)
@@ -175,7 +175,7 @@ module SiSU_DbColumns
             IS 'metadata document short title if any';}
         end
         def tuple
-          t=if defined? @md.title.short \
+          if defined? @md.title.short \
           and @md.title.short=~/\S+/
             txt=@md.title.short
             txt=special_character_escape(txt)
@@ -197,7 +197,7 @@ module SiSU_DbColumns
             IS 'metadata document edition (version)';}
         end
         def tuple
-          t=if defined? @md.title.edition \
+          if defined? @md.title.edition \
           and @md.title.edition=~/\S+/
             txt=@md.title.edition
             txt=special_character_escape(txt)
@@ -219,7 +219,7 @@ module SiSU_DbColumns
             IS 'metadata document notes associated with title';}
         end
         def tuple
-          t=if defined? @md.title.note \
+          if defined? @md.title.note \
           and @md.title.note=~/\S+/
             txt=@md.title.note
             txt=special_character_escape(txt)
@@ -241,7 +241,7 @@ module SiSU_DbColumns
             IS 'metadata document language [DC12]';}
         end
         def tuple
-          t=if @lang.list[@md.opt.lng][:n]
+          if @lang.list[@md.opt.lng][:n]
             txt=@lang.list[@md.opt.lng][:n]
             txt=special_character_escape(txt)
             ["#{name}, ","'#{txt}', "]
@@ -262,7 +262,7 @@ module SiSU_DbColumns
             IS 'metadata document language iso code';}
         end
         def tuple
-          t=if defined? @md.opt.lng \
+          if defined? @md.opt.lng \
           and @md.opt.lng=~/\S+/
             txt=@md.opt.lng
             txt=special_character_escape(txt)
@@ -298,7 +298,7 @@ module SiSU_DbColumns
            IS 'metadata document author (creator) [DC2]';}
         end
         def tuple
-          t=if defined? @md.creator.author_detail \
+          if defined? @md.creator.author_detail \
           and @md.creator.author_detail.is_a?(Array) \
           and @md.creator.author_detail.length > 0
             txt=''
@@ -325,7 +325,7 @@ module SiSU_DbColumns
            IS 'metadata document author honorific (title e.g, Ms. Dr. Prof.)';}
         end
         def tuple
-          t=if defined? @md.creator.author_hon \
+          if defined? @md.creator.author_hon \
           and @md.creator.author_hon=~/\S+/
             txt=@md.creator.author_hon
             txt=special_character_escape(txt)
@@ -347,7 +347,7 @@ module SiSU_DbColumns
            IS 'metadata nationality of document author (creator)';}
         end
         def tuple
-          t=if defined? @md.creator.author_nationality_detail \
+          if defined? @md.creator.author_nationality_detail \
           and @md.creator.author_nationality=~/\S+/
             txt=@md.creator.author_nationality_detail
             txt=special_character_escape(txt)
@@ -369,7 +369,7 @@ module SiSU_DbColumns
            IS 'metadata document editor name(s)';}
         end
         def tuple
-          t=if defined? @md.creator.editor_detail \
+          if defined? @md.creator.editor_detail \
           and @md.creator.editor_detail.is_a?(Array) \
           and @md.creator.editor_detail.length > 0
             txt=@md.creator.editor_detail #dc
@@ -397,7 +397,7 @@ module SiSU_DbColumns
            IS 'metadata document contributor name(s) [DC6]';}
         end
         def tuple
-          t=if defined? @md.creator.contributor_detail \
+          if defined? @md.creator.contributor_detail \
           and @md.creator.contributor_detail.is_a?(Array) \
           and @md.creator.contributor_detail.length > 0
             txt=@md.creator.contributor_detail #dc
@@ -425,7 +425,7 @@ module SiSU_DbColumns
            IS 'metadata document illustrator name(s)';}
         end
         def tuple
-          t=if defined? @md.creator.illustrator_detail \
+          if defined? @md.creator.illustrator_detail \
           and @md.creator.illustrator_detail.is_a?(Array) \
           and @md.creator.illustrator_detail.length > 0
             txt=@md.creator.illustrator_detail
@@ -453,7 +453,7 @@ module SiSU_DbColumns
            IS 'metadata document photographer name(s)';}
         end
         def tuple
-          t=if defined? @md.creator.photographer_detail \
+          if defined? @md.creator.photographer_detail \
           and @md.creator.photographer_detail.is_a?(Array) \
           and @md.creator.photographer_detail.length > 0
             txt=@md.creator.photographer_detail
@@ -481,7 +481,7 @@ module SiSU_DbColumns
            IS 'metadata document translator name(s)';}
         end
         def tuple
-          t=if defined? @md.creator.translator_detail \
+          if defined? @md.creator.translator_detail \
           and @md.creator.translator_detail.is_a?(Array) \
           and @md.creator.translator_detail.length > 0
             txt=''
@@ -508,7 +508,7 @@ module SiSU_DbColumns
            IS 'metadata document prepared by name(s)';}
         end
         def tuple
-          t=if defined? @md.creator.prepared_by_detail \
+          if defined? @md.creator.prepared_by_detail \
           and @md.creator.prepared_by_detail.is_a?(Array) \
           and @md.creator.prepared_by_detail.length > 0
             txt=@md.creator.prepared_by_detail
@@ -536,7 +536,7 @@ module SiSU_DbColumns
            IS 'metadata document digitized by name(s)';}
         end
         def tuple
-          t=if defined? @md.creator.digitized_by_detail \
+          if defined? @md.creator.digitized_by_detail \
           and @md.creator.digitized_by_detail.is_a?(Array) \
           and @md.creator.digitized_by_detail.length > 0
             txt=@md.creator.digitized_by_detail
@@ -564,7 +564,7 @@ module SiSU_DbColumns
            IS 'metadata document audio by name(s)';}
         end
         def tuple
-          t=if defined? @md.creator.audio_detail \
+          if defined? @md.creator.audio_detail \
           and @md.creator.audio_detail.is_a?(Array) \
           and @md.creator.audio_detail.length > 0
             txt=@md.creator.audio_detail
@@ -592,7 +592,7 @@ module SiSU_DbColumns
            IS 'metadata document video by name(s)';}
         end
         def tuple
-          t=if defined? @md.creator.video_detail \
+          if defined? @md.creator.video_detail \
           and @md.creator.video_detail.is_a?(Array) \
           and @md.creator.video_detail.length > 0
             txt=''
@@ -631,7 +631,7 @@ module SiSU_DbColumns
            IS 'metadata document language';}
         end
         def tuple
-          t=if @lang.list[@md.opt.lng][:n]
+          if @lang.list[@md.opt.lng][:n]
             txt=@lang.list[@md.opt.lng][:n]
             txt=special_character_escape(txt)
             ["#{name}, ","'#{txt}', "]
@@ -653,7 +653,7 @@ module SiSU_DbColumns
         end
         def tuple
           #modify check, is now required, SiSUv3d_
-          t=if defined? @md.opt.lng \
+          if defined? @md.opt.lng \
           and @md.opt.lng=~/\S+/
             txt=@md.opt.lng
             txt=special_character_escape(txt)
@@ -675,7 +675,7 @@ module SiSU_DbColumns
            IS 'metadata original document/text language';}
         end
         def tuple
-          t=if defined? @md.language.original \
+          if defined? @md.language.original \
           and @md.language.original=~/\S+/
             txt=@md.language.original
             txt=special_character_escape(txt)
@@ -697,7 +697,7 @@ module SiSU_DbColumns
            IS 'metadata document language';}
         end
         def tuple
-          t=if defined? @md.language.original_char \
+          if defined? @md.language.original_char \
           and @md.language.original_char=~/\S+/
             txt=@md.language.original_char
             txt=special_character_escape(txt)
@@ -733,7 +733,7 @@ module SiSU_DbColumns
            IS 'metadata date added to site';}
         end
         def tuple
-          t=if defined? @md.date.added_to_site \
+          if defined? @md.date.added_to_site \
           and @md.date.added_to_site=~/\S+/
             txt=@md.date.added_to_site
             txt=special_character_escape(txt)
@@ -755,7 +755,7 @@ module SiSU_DbColumns
            IS 'metadata date added to site [DC]';}
         end
         def tuple
-          t=if defined? @md.date.available \
+          if defined? @md.date.available \
           and @md.date.available=~/\S+/
             txt=@md.date.available
             txt=special_character_escape(txt)
@@ -777,7 +777,7 @@ module SiSU_DbColumns
            IS 'metadata date created [DC]';}
         end
         def tuple
-          t=if defined? @md.date.created \
+          if defined? @md.date.created \
           and @md.date.created=~/\S+/
             txt=@md.date.created
             txt=special_character_escape(txt)
@@ -799,7 +799,7 @@ module SiSU_DbColumns
            IS 'metadata date issued [DC]';}
         end
         def tuple
-          t=if defined? @md.date.issued \
+          if defined? @md.date.issued \
           and @md.date.issued=~/\S+/
             txt=@md.date.issued
             txt=special_character_escape(txt)
@@ -821,7 +821,7 @@ module SiSU_DbColumns
            IS 'metadata date modified [DC]';}
         end
         def tuple
-          t=if defined? @md.date.modified \
+          if defined? @md.date.modified \
           and @md.date.modified=~/\S+/
             txt=@md.date.modified
             txt=special_character_escape(txt)
@@ -843,7 +843,7 @@ module SiSU_DbColumns
            IS 'metadata date published [DC7]';}
         end
         def tuple
-          t=if defined? @md.date.published \
+          if defined? @md.date.published \
           and @md.date.published=~/\S+/
             txt=@md.date.published
             txt=special_character_escape(txt)
@@ -865,7 +865,7 @@ module SiSU_DbColumns
            IS 'metadata date valid [DC]';}
         end
         def tuple
-          t=if defined? @md.date.valid \
+          if defined? @md.date.valid \
           and @md.date.valid=~/\S+/
             txt=@md.date.valid
             txt=special_character_escape(txt)
@@ -887,7 +887,7 @@ module SiSU_DbColumns
            IS 'metadata date translated';}
         end
         def tuple
-          t=if defined? @md.date.translated \
+          if defined? @md.date.translated \
           and @md.date.translated=~/\S+/
             txt=@md.date.translated
             txt=special_character_escape(txt)
@@ -909,7 +909,7 @@ module SiSU_DbColumns
            IS 'metadata date of original publication';}
         end
         def tuple
-          t=if defined? @md.date.original_publication \
+          if defined? @md.date.original_publication \
           and @md.date.original_publication=~/\S+/
             txt=@md.date.original_publication
             txt=special_character_escape(txt)
@@ -932,7 +932,7 @@ module SiSU_DbColumns
            IS 'metadata date of sisu generation of document, automatically populated';}
         end
         def tuple                      #choose other representation of time
-          t=if defined? @md.generated \
+          if defined? @md.generated \
           and @md.generated.to_s=~/\S+/
             txt=@md.generated.to_s
             txt=special_character_escape(txt)
@@ -958,7 +958,7 @@ module SiSU_DbColumns
            IS 'metadata document publisher [DC5]';}
         end
         def tuple
-          t=if defined? @md.publisher \
+          if defined? @md.publisher \
           and @md.publisher=~/\S+/
             txt=@md.publisher
             txt=special_character_escape(txt)
@@ -1011,7 +1011,7 @@ module SiSU_DbColumns
            IS 'metadata document original publisher [DC5]';}
         end
         def tuple
-          t=if defined? @md.original.publisher \
+          if defined? @md.original.publisher \
           and @md.original.publisher=~/\S+/
             txt=@md.original.publisher
             txt=special_character_escape(txt)
@@ -1033,7 +1033,7 @@ module SiSU_DbColumns
            IS 'metadata document original language';}
         end
         def tuple
-          t=if defined? @md.original.language \
+          if defined? @md.original.language \
           and @md.original.language=~/\S+/
             txt=@md.original.language
             txt=special_character_escape(txt)
@@ -1055,7 +1055,7 @@ module SiSU_DbColumns
            IS 'metadata document original language iso character';}
         end
         def tuple
-          t=if defined? @md.original.language_char \
+          if defined? @md.original.language_char \
           and @md.original.language_char=~/\S+/
             txt=@md.original.language_char
             txt=special_character_escape(txt)
@@ -1077,7 +1077,7 @@ module SiSU_DbColumns
            IS 'metadata document original source [DC11]';}
         end
         def tuple
-          t=if defined? @md.original.source \
+          if defined? @md.original.source \
           and @md.original.source=~/\S+/
             txt=@md.original.source
             txt=special_character_escape(txt)
@@ -1099,7 +1099,7 @@ module SiSU_DbColumns
            IS 'metadata document original institution';}
         end
         def tuple
-          t=if defined? @md.original.institution \
+          if defined? @md.original.institution \
           and @md.original.institution=~/\S+/
             txt=@md.original.institution
             txt=special_character_escape(txt)
@@ -1121,7 +1121,7 @@ module SiSU_DbColumns
            IS 'metadata document original nationality';}
         end
         def tuple
-          t=if defined? @md.original.nationality \
+          if defined? @md.original.nationality \
           and @md.original.nationality=~/\S+/
             txt=@md.original.nationality
             txt=special_character_escape(txt)
@@ -1158,7 +1158,7 @@ module SiSU_DbColumns
            IS 'metadata rights associated with document (composite) [DC15]';}
         end
         def tuple
-          t=if defined? @md.rights.all \
+          if defined? @md.rights.all \
           and @md.rights.all=~/\S+/
             txt=@md.rights.all
             txt=special_character_escape(txt)
@@ -1180,7 +1180,7 @@ module SiSU_DbColumns
            IS 'metadata copyright associated for document text';}
         end
         def tuple
-          t=if defined? @md.rights.copyright_text \
+          if defined? @md.rights.copyright_text \
           and @md.rights.copyright_text=~/\S+/
             txt=@md.rights.copyright_text
             txt=special_character_escape(txt)
@@ -1202,7 +1202,7 @@ module SiSU_DbColumns
            IS 'metadata copyright associated for document text translation (if any)';}
         end
         def tuple
-          t=if defined? @md.rights.copyright_translation \
+          if defined? @md.rights.copyright_translation \
           and @md.rights.copyright_translation=~/\S+/
             txt=@md.rights.copyright_translation
             txt=special_character_escape(txt)
@@ -1224,7 +1224,7 @@ module SiSU_DbColumns
            IS 'metadata copyright associated for document text illustrations (if any)';}
         end
         def tuple
-          t=if defined? @md.rights.copyright_illustrations \
+          if defined? @md.rights.copyright_illustrations \
           and @md.rights.copyright_illustrations=~/\S+/
             txt=@md.rights.copyright_illustrations
             txt=special_character_escape(txt)
@@ -1246,7 +1246,7 @@ module SiSU_DbColumns
            IS 'metadata copyright associated for document text photographs (if any)';}
         end
         def tuple
-          t=if defined? @md.rights.copyright_photographs \
+          if defined? @md.rights.copyright_photographs \
           and @md.rights.copyright_photographs=~/\S+/
             txt=@md.rights.copyright_photographs
             txt=special_character_escape(txt)
@@ -1268,7 +1268,7 @@ module SiSU_DbColumns
            IS 'metadata copyright associated for document text preparation (if any)';}
         end
         def tuple
-          t=if defined? @md.rights.copyright_preparation \
+          if defined? @md.rights.copyright_preparation \
           and @md.rights.copyright_preparation=~/\S+/
             txt=@md.rights.copyright_preparation
             txt=special_character_escape(txt)
@@ -1290,7 +1290,7 @@ module SiSU_DbColumns
            IS 'metadata copyright associated for document text digitization (if any)';}
         end
         def tuple
-          t=if defined? @md.rights.copyright_digitization \
+          if defined? @md.rights.copyright_digitization \
           and @md.rights.copyright_digitization=~/\S+/
             txt=@md.rights.copyright_digitization
             txt=special_character_escape(txt)
@@ -1312,7 +1312,7 @@ module SiSU_DbColumns
            IS 'metadata copyright associated for document text audio (if any)';}
         end
         def tuple
-          t=if defined? @md.rights.copyright_audio \
+          if defined? @md.rights.copyright_audio \
           and @md.rights.copyright_audio=~/\S+/
             txt=@md.rights.copyright_audio
             txt=special_character_escape(txt)
@@ -1334,7 +1334,7 @@ module SiSU_DbColumns
            IS 'metadata copyright associated for document text video (if any)';}
         end
         def tuple
-          t=if defined? @md.rights.copyright_video \
+          if defined? @md.rights.copyright_video \
           and @md.rights.copyright_video=~/\S+/
             txt=@md.rights.copyright_video
             txt=special_character_escape(txt)
@@ -1356,7 +1356,7 @@ module SiSU_DbColumns
            IS 'metadata license granted for use of document if any)';}
         end
         def tuple
-          t=if defined? @md.rights.license \
+          if defined? @md.rights.license \
           and @md.rights.license=~/\S+/
             txt=@md.rights.license
             txt=special_character_escape(txt)
@@ -1384,7 +1384,7 @@ module SiSU_DbColumns
            IS 'metadata identifier document Online Computer Library Center number';}
         end
         def tuple
-          t=if defined? @md.identifier.oclc \
+          if defined? @md.identifier.oclc \
           and @md.identifier.oclc=~/\S+/
             txt=@md.identifier.oclc
             txt=special_character_escape(txt)
@@ -1406,7 +1406,7 @@ module SiSU_DbColumns
            IS 'metadata identifier document isbn (if any)';}
         end
         def tuple
-          t=if defined? @md.identifier.isbn \
+          if defined? @md.identifier.isbn \
           and @md.identifier.isbn=~/\S+/
             txt=@md.identifier.isbn
             txt=special_character_escape(txt)
@@ -1438,7 +1438,7 @@ module SiSU_DbColumns
            IS 'metadata classify document topic register (semi-structured document subject information)';}
         end
         def tuple
-          t=if defined? @md.classify.topic_register \
+          if defined? @md.classify.topic_register \
           and @md.classify.topic_register=~/\S+/
             txt=@md.classify.topic_register
             txt=special_character_escape(txt)
@@ -1460,7 +1460,7 @@ module SiSU_DbColumns
            IS 'metadata classify document subject matter [DC3]';}
         end
         def tuple
-          t=if defined? @md.classify.subject \
+          if defined? @md.classify.subject \
           and @md.classify.subject=~/\S+/
             txt=@md.classify.subject
             txt=special_character_escape(txt)
@@ -1482,7 +1482,7 @@ module SiSU_DbColumns
            IS 'metadata classify document Library of Congress';}
         end
         def tuple
-          t=if defined? @md.classify.loc \
+          if defined? @md.classify.loc \
           and @md.classify.loc=~/\S+/
             txt=@md.classify.loc
             txt=special_character_escape(txt)
@@ -1504,7 +1504,7 @@ module SiSU_DbColumns
            IS 'metadata classify document Dewey';}
         end
         def tuple
-          t=if defined? @md.classify.dewey \
+          if defined? @md.classify.dewey \
           and @md.classify.dewey=~/\S+/
             txt=@md.classify.dewey
             txt=special_character_escape(txt)
@@ -1526,7 +1526,7 @@ module SiSU_DbColumns
            IS 'metadata classify document keywords';}
         end
         def tuple
-          t=if defined? @md.classify.keywords \
+          if defined? @md.classify.keywords \
           and @md.classify.keywords=~/\S+/
             txt=@md.classify.keywords
             txt=special_character_escape(txt)
@@ -1563,7 +1563,7 @@ module SiSU_DbColumns
            IS 'metadata document notes abstract';}
         end
         def tuple
-          t=if defined? @md.notes.abstract \
+          if defined? @md.notes.abstract \
           and @md.notes.abstract=~/\S+/
             txt=@md.notes.abstract
             txt=special_character_escape(txt)
@@ -1585,7 +1585,7 @@ module SiSU_DbColumns
            IS 'metadata document notes description [DC4]';}
         end
         def tuple
-          t=if defined? @md.notes.description \
+          if defined? @md.notes.description \
           and @md.notes.description=~/\S+/
             txt=@md.notes.description
             txt=special_character_escape(txt)
@@ -1607,7 +1607,7 @@ module SiSU_DbColumns
            IS 'metadata document notes comment';}
         end
         def tuple
-          t=if defined? @md.notes.comment \
+          if defined? @md.notes.comment \
           and @md.notes.comment=~/\S+/
             txt=@md.notes.comment
             txt=special_character_escape(txt)
@@ -1629,7 +1629,7 @@ module SiSU_DbColumns
            IS 'metadata classify document coverage [DC14]';}
         end
         def tuple
-          t=if defined? @md.classify.coverage \
+          if defined? @md.classify.coverage \
           and @md.classify.coverage=~/\S+/
             txt=@md.classify.coverage
             txt=special_character_escape(txt)
@@ -1651,7 +1651,7 @@ module SiSU_DbColumns
            IS 'metadata classify document relation [DC13]';}
         end
         def tuple
-          t=if defined? @md.classify.relation \
+          if defined? @md.classify.relation \
           and @md.classify.relation=~/\S+/
             txt=@md.classify.relation
             txt=special_character_escape(txt)
@@ -1673,7 +1673,7 @@ module SiSU_DbColumns
            IS 'metadata document notes history';}
         end
         def tuple
-          t=if defined? @md.notes.history \
+          if defined? @md.notes.history \
           and @md.notes.history=~/\S+/
             txt=@md.notes.history
             txt=special_character_escape(txt)
@@ -1695,7 +1695,7 @@ module SiSU_DbColumns
            IS 'metadata notes document type [DC8]';}
         end
         def tuple
-          t=if defined? @md.notes.type \
+          if defined? @md.notes.type \
           and @md.notes.type=~/\S+/
             txt=@md.notes.type
             txt=special_character_escape(txt)
@@ -1717,7 +1717,7 @@ module SiSU_DbColumns
            IS 'metadata classify document format [DC9]';}
         end
         def tuple
-          t=if defined? @md.classify.format \
+          if defined? @md.classify.format \
           and @md.classify.format=~/\S+/
             txt=@md.classify.format
             txt=special_character_escape(txt)
@@ -1739,7 +1739,7 @@ module SiSU_DbColumns
            IS 'metadata document notes prefix';}
         end
         def tuple
-          t=if defined? @md.notes.prefix \
+          if defined? @md.notes.prefix \
           and @md.notes.prefix=~/\S+/
             txt=@md.notes.prefix
             txt=special_character_escape(txt)
@@ -1761,7 +1761,7 @@ module SiSU_DbColumns
            IS 'metadata document notes prefix_a';}
         end
         def tuple
-          t=if defined? @md.notes.prefix_a \
+          if defined? @md.notes.prefix_a \
           and @md.notes.prefix_a=~/\S+/
             txt=@md.notes.prefix_a
             txt=special_character_escape(txt)
@@ -1783,7 +1783,7 @@ module SiSU_DbColumns
            IS 'metadata document notes prefix_b';}
         end
         def tuple
-          t=if defined? @md.notes.prefix_b \
+          if defined? @md.notes.prefix_b \
           and @md.notes.prefix_b=~/\S+/
             txt=@md.notes.prefix_b
             txt=special_character_escape(txt)
@@ -1805,7 +1805,7 @@ module SiSU_DbColumns
            IS 'metadata document notes suffix';}
         end
         def tuple
-          t=if defined? @md.notes.suffix \
+          if defined? @md.notes.suffix \
           and @md.notes.suffix=~/\S+/
             txt=@md.notes.suffix
             txt=special_character_escape(txt)
@@ -1830,7 +1830,7 @@ module SiSU_DbColumns
            IS 'sisu markup source text filename';}
         end
         def tuple
-          t=if defined? @md.fns \
+          if defined? @md.fns \
           and @md.fns=~/\S+/
             txt=@md.fns
             txt=special_character_escape(txt)
@@ -1853,7 +1853,7 @@ module SiSU_DbColumns
             IS 'sisu markup source text fingerprint, hash digest sha256 (or md5)';}
         end
         def tuple
-          t=if defined? @md.dgst \
+          if defined? @md.dgst \
           and @md.dgst.is_a?(Array) \
           and @md.dgst[1]=~/\S+/
             txt=@md.dgst[1]
@@ -1875,7 +1875,7 @@ module SiSU_DbColumns
             IS 'sisu markup source text file size';}
         end
         def tuple
-         t=if defined? @md.filesize \
+         if defined? @md.filesize \
          and @md.filesize=~/\S+/
            txt=@md.filesize
            txt=special_character_escape(txt)
@@ -1897,7 +1897,7 @@ module SiSU_DbColumns
             IS 'sisu markup source text word count';}
         end
         def tuple
-          t=if defined? @md.wc_words \
+          if defined? @md.wc_words \
           and @md.wc_words=~/\S+/
             txt=@md.wc_words
             txt=special_character_escape(txt)
@@ -1919,7 +1919,7 @@ module SiSU_DbColumns
            IS 'sisu markup source text (if shared)';}
         end
         def tuple
-          t=if @md.opt.mod.inspect=~/import|update/ \
+          if @md.opt.mod.inspect=~/import|update/ \
           and FileTest.exist?(@md.fns)
             ["#{name}, ","'#{@sisutxt}', "]
           else ['','']
@@ -1943,7 +1943,7 @@ module SiSU_DbColumns
             IS 'document full text clean, searchable';}
         end
         def tuple
-          t=if @md.opt.mod.inspect=~/import|update/ \
+          if @md.opt.mod.inspect=~/import|update/ \
           and  FileTest.exist?(@md.fns)
             ["#{name}, ","'#{@fulltext}', "]
           else ['','']
@@ -1964,7 +1964,7 @@ module SiSU_DbColumns
            IS 'metadata document links';}
         end
         def tuple
-          t=if defined? @md.links \
+          if defined? @md.links \
           and @md.links=~/\S+/
             txt=@md.links
             txt=special_character_escape(txt)
diff --git a/lib/sisu/v4/db_import.rb b/lib/sisu/v4/db_import.rb
index a4251a98..eb46e795 100644
--- a/lib/sisu/v4/db_import.rb
+++ b/lib/sisu/v4/db_import.rb
@@ -147,7 +147,6 @@ module SiSU_DbImport
           puts @conn.driver if defined? @conn.driver
         end
         begin
-          sql=''
           if @sql_type=~/sqlite/
             @conn.transaction do |conn|
               t_d.each do |sql|
@@ -270,10 +269,10 @@ module SiSU_DbImport
           data.obj.gsub!(/#{Mx[:tag_o]}\S+?#{Mx[:tag_c]}/,'') #check
           @col[:seg]=@@seg
           if data.of ==:para \
-          || :heading \
-          || :heading_insert \
-          || :block \
-          || :group      # regular text what of code-blocks grouped text etc.
+          || data.of ==:heading \
+          || data.of ==:heading_insert \
+          || data.of ==:block \
+          || data.of ==:group      # regular text what of code-blocks grouped text etc.
             notedata=data.obj.dup
                                                                                #% :headings
             if data.is==:heading \
@@ -590,17 +589,17 @@ module SiSU_DbImport
         @txt
       end
       def standard
-        x=(@txt =~/#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}/) \
+        (@txt =~/#{Mx[:en_a_o]}.+?#{Mx[:en_a_c]}/) \
         ? @txt.scan(/#{Mx[:en_a_o]}(\d+).+?#{Mx[:en_a_c]}/)
         : nil
       end
       def asterisk
-        x=(@txt =~/#{Mx[:en_b_o]}\*.+?#{Mx[:en_b_c]}/) \
+        (@txt =~/#{Mx[:en_b_o]}\*.+?#{Mx[:en_b_c]}/) \
         ? @txt.scan(/#{Mx[:en_b_o]}[*](\d+).+?#{Mx[:en_b_c]}/)
         : nil
       end
       def plus
-        x=(@txt =~/#{Mx[:en_b_o]}\+.+?#{Mx[:en_b_c]}/) \
+        (@txt =~/#{Mx[:en_b_o]}\+.+?#{Mx[:en_b_c]}/) \
         ? @txt.scan(/#{Mx[:en_b_o]}[+](\d+).+?#{Mx[:en_b_c]}/)
         : nil
       end
@@ -636,8 +635,6 @@ module SiSU_DbImport
       begin
         @fnc=content
         @env=SiSU_Env::InfoEnv.new(@opt.fns)
-        base=@env.url.root
-        out=@env.path.output
         f,u={},{}
         if @fnb.empty? \
         or @fnb.nil?
diff --git a/lib/sisu/v4/db_select.rb b/lib/sisu/v4/db_select.rb
index 34fe6485..d8b63b3b 100644
--- a/lib/sisu/v4/db_select.rb
+++ b/lib/sisu/v4/db_select.rb
@@ -92,7 +92,7 @@ module SiSU_DbSelect
     end
     def sql_maintenance_file
       file=if @opt.inspect =~/M/
-        x=if @opt.fns and not @opt.fns.empty?
+        if @opt.fns and not @opt.fns.empty?
           @env=SiSU_Env::InfoEnv.new(@opt.fns) if @opt.fns
           puts "\n#{@env.processing_path.sqlite}/#{@opt.fns}.sql" if @sql_type =~/sqlite/ and @opt.cmd =~/M/
           @db=SiSU_Env::InfoDb.new
diff --git a/lib/sisu/v4/dbi.rb b/lib/sisu/v4/dbi.rb
index 867585dd..20443c7c 100644
--- a/lib/sisu/v4/dbi.rb
+++ b/lib/sisu/v4/dbi.rb
@@ -119,7 +119,6 @@ manually create the database: "#{cX.green}#{@db.db}#{cX.off}" if it does not yet
     end
     def read_sqlite
       begin
-        sql_type='sqlite'
         @conn=@db.sqlite.conn_sqlite3
       rescue
       ensure
diff --git a/lib/sisu/v4/dbi_discrete.rb b/lib/sisu/v4/dbi_discrete.rb
index 3499bc9c..5b7d36bf 100644
--- a/lib/sisu/v4/dbi_discrete.rb
+++ b/lib/sisu/v4/dbi_discrete.rb
@@ -151,7 +151,6 @@ module  SiSU_DBI_Discrete                               #% database building
     end
     def connect
       begin
-        sql_type='sqlite'
         SiSU_Screen::Ansi.new(@opt.cmd,"DBI (#{@sql_type}) #{@opt.mod}",@opt.fns).dbi_title unless @opt.cmd =~/q/
         @db.sqlite_discrete.conn_sqlite3
       rescue
@@ -165,7 +164,7 @@ module  SiSU_DBI_Discrete                               #% database building
     end
     def sql_maintenance_file
       file=if @opt.inspect =~/M/
-        x=if @opt.fns and not @opt.fns.empty?
+        if @opt.fns and not @opt.fns.empty?
           @env=SiSU_Env::InfoEnv.new(@opt.fns) if @opt.fns
           puts "\n#{@env.processing_path.sqlite}/#{@opt.fns}.sql" if @sql_type =~/sqlite/ and @opt.cmd =~/M/
           @db=SiSU_Env::InfoDb.new
diff --git a/lib/sisu/v4/defaults.rb b/lib/sisu/v4/defaults.rb
index 498512db..69af0fa5 100644
--- a/lib/sisu/v4/defaults.rb
+++ b/lib/sisu/v4/defaults.rb
@@ -937,18 +937,17 @@ WOK
       widget_sisu_text
     end
     def credits_sisu
-      x=%{<div class="substance">
+      %{<div class="substance">
 <table summary="SiSU summary" bgcolor="#ffffff" cellpadding="4" border="0">
 <tr><td>
   #{widget_sisu}
-  #{widget_way_better}
 </table></div>}
       ''
     end
     def credits_splash
     end
     def credits_sisu_epub
-      x=%{<div class="substance">
+      %{<div class="substance">
 <p class="center"><a href="http://www.openebook.org"><b>EPUB</b></a> generated by <a href="http://www.sisudoc.org"><b>#{@v[:project]}</b></a> v#{@v[:version]}, GPL3</p>
 </div>}
       ''
@@ -1198,7 +1197,7 @@ WOK
       self
     end
     def dimensions
-      d=case @papersize
+      case @papersize
       when /a4/;     a4
       when /letter/; letter
       when /legal/;  legal
diff --git a/lib/sisu/v4/digests.rb b/lib/sisu/v4/digests.rb
index 25dcee7b..65a379c4 100644
--- a/lib/sisu/v4/digests.rb
+++ b/lib/sisu/v4/digests.rb
@@ -63,7 +63,6 @@ module SiSU_DigestView
   require_relative 'particulars'                        # particulars.rb
   require_relative 'prog_text_translation'              # prog_text_translation.rb
   require_relative 'shared_markup_alt.rb'               # shared_markup_alt.rb
-  pwd=Dir.pwd
   class Source
     @@dg=nil
     def initialize(opt)
@@ -149,14 +148,13 @@ module SiSU_DigestView
       def message_digest
         data=@data
         sys=SiSU_Env::SystemCall.new
-        l=Hash.new(0)
         @p=[]
         @g,@v,@r='','',''
         data.each do |para|
           x=nil
           y,para_endnotes=[],[]
-          if para =~/#{Mx[:id_o]}~(\d+);((?:\w|[0-6]:)\d+);(\w\d+)#{Mx[:id_c]}#{Mx[:id_o]}([0-9a-f]{#{@dl}}):([0-9a-f]{#{@dl}})#{Mx[:id_c]}/
-            ocn,h1,h2,d_clean,d_all=$1,$2,$3,$4,$5
+          if para =~/#{Mx[:id_o]}~(\d+);(?:(?:\w|[0-6]:)\d+);(?:\w\d+)#{Mx[:id_c]}#{Mx[:id_o]}([0-9a-f]{#{@dl}}):([0-9a-f]{#{@dl}})#{Mx[:id_c]}/
+            ocn,d_clean,d_all=$1,$2,$3
             @ocn=ocn unless ocn.to_i==0
             para=para.gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,'<b>\1</b>').
               gsub(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,'<i>\1</i>').
@@ -164,29 +162,29 @@ module SiSU_DigestView
             if para=~/#{Mx[:en_a_o]}[\d*+]+.+?#{Mx[:id_o]}[0-9a-f]{#{@dl}}#{Mx[:id_c]}#{Mx[:en_a_c]}/
               para_endnotes << para.scan(/(?:#{Mx[:en_a_o]}|#{Mx[:en_b_o]})([\d*+]+).+?#{Mx[:id_o]}([0-9a-f]{#{@dl}})#{Mx[:id_c]}(?:#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/)
             end
-            ima=[]
+            images=[]
             if para !~/^%+\s/ \
             and para =~/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+\.(png|jpg|gif))\s.+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/
               images=para.scan(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+\.(?:png|jpg|gif))\s.+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/).flatten
-            else image=nil
+            else nil
             end
             x=case para
             when /^#{Mx[:meta_o]}title#{Mx[:meta_c]}/
-              "\n" + '  '*0 +'@' + '  '*9
+              "\n" << '  '*0 << '@' << '  '*9
             when /^#{Mx[:meta_o]}subtitle#{Mx[:meta_c]}/
-              "\n" + '  '*1 +'@' + '  '*8
+              "\n" << '  '*1 << '@' << '  '*8
             when /^#{Mx[:lv_o]}1:/ #fix Mx[:lv_o]
-              "\n" + '  '*2 +':A ' + '  '*6 +'- ' + ocn + ' '*(10-ocn.length) + d_clean + ' ' + d_all
+              "\n" << '  '*2 << ':A ' << '  '*6 << '- ' << ocn << ' '*(10-ocn.length) << d_clean << ' ' << d_all
             when /^#{Mx[:lv_o]}2:/ #fix Mx[:lv_o]
-              "\n" + '  '*3 +':B ' + '  '*5 +'- ' + ocn + ' '*(10-ocn.length) + d_clean + ' ' + d_all
+              "\n" << '  '*3 << ':B ' << '  '*5 << '- ' << ocn << ' '*(10-ocn.length) << d_clean << ' ' << d_all
             when /^#{Mx[:lv_o]}3:/ #fix Mx[:lv_o]
-              "\n" + '  '*4 +':C ' + '  '*4 +'- ' + ocn + ' '*(10-ocn.length) + d_clean + ' ' + d_all
+              "\n" << '  '*4 << ':C ' << '  '*4 << '- ' << ocn << ' '*(10-ocn.length) << d_clean << ' ' << d_all
             when /^#{Mx[:lv_o]}4:/ #fix Mx[:lv_o]
-              "\n" + '  '*5 +'1' + '  '*4 +'- ' + ocn + ' '*(10-ocn.length) + d_clean + ' ' + d_all
+              "\n" << '  '*5 << '1' << '  '*4 << '- ' << ocn << ' '*(10-ocn.length) << d_clean << ' ' << d_all
             when /^#{Mx[:lv_o]}5:/ #fix Mx[:lv_o]
-              "\n" + '  '*6 +'2' + '  '*3 +'- ' + ocn + ' '*(10-ocn.length) + d_clean + ' ' + d_all
+              "\n" << '  '*6 << '2' << '  '*3 << '- ' << ocn << ' '*(10-ocn.length) << d_clean << ' ' << d_all
             when /^#{Mx[:lv_o]}6:/ #fix Mx[:lv_o]
-              "\n" + '  '*7 +'3' + '  '*2 +'- ' + ocn + ' '*(10-ocn.length) + d_clean + ' ' + d_all
+              "\n" << '  '*7 << '3' << '  '*2 << '- ' << ocn << ' '*(10-ocn.length) << d_clean << ' ' << d_all
             else
               if para =~/MD5\(\S+?\.sst\)=\s*<u>([0-9a-f]{#{@dl}})<\/u>/                                        #watch
                 @n,@s=/MD5\((\S+?\.sst)\)=\s*<u>([0-9a-f]{#{@dl}})<\/u>/.match(para)[1,2]
@@ -259,7 +257,7 @@ module SiSU_DigestView
                 when /#{m_author}: /
                   @c=/#{m_author}: (.+?)#{Mx[:id_o]}~\d;(?:\w|[0-6]:)\d+;\w\d+#{Mx[:id_c]}#{Mx[:id_o]}[0-9a-f]{#{@dl}}:[0-9a-f]{#{@dl}}#{Mx[:id_c]}/.match(para)[1].gsub(/<\/?u>/,'').strip
                 when /#{m_sourcefile_digest}.+?<u>/                                        #watch
-                  dgst_extra="\n" + ' '*21 +'source' +' '*4 + @md.dgst[1] + ' '*34 + @md.fns
+                  dgst_extra="\n" << ' '*21 << 'source' << ' '*4 << @md.dgst[1] << ' '*34 << @md.fns
                 when /#{m_sisu_version}: /
                   @v=/#{m_sisu_version}: (.+?)#{Mx[:id_o]}~\d;(?:\w|[0-6]:)\d+;\w\d+#{Mx[:id_c]}#{Mx[:id_o]}[0-9a-f]{#{@dl}}:[0-9a-f]{#{@dl}}#{Mx[:id_c]}/.match(para)[1].gsub(/<\/?u>/,'').strip
                 when /#{m_last_generated}: /
@@ -268,7 +266,7 @@ module SiSU_DigestView
                   @r=/#{m_ruby_version}: (.+?)#{Mx[:id_o]}~\d;(?:\w|[0-6]:)\d+;\w\d+#{Mx[:id_c]}#{Mx[:id_o]}[0-9a-f]{#{@dl}}:[0-9a-f]{#{@dl}}#{Mx[:id_c]}/.match(para)[1].gsub(/<\/?u>/,'').strip
                 end
                 dgst_extra ||=''
-                "\n" + prefix +' - ' + ocn + ' '*(10-ocn.length) + d_clean + ' ' + d_all + dgst_extra + "\n"
+                "\n" << prefix << ' - ' << ocn << ' '*(10-ocn.length) << d_clean << ' ' << d_all << dgst_extra << "\n"
               end
             end
             para_endnotes[0].each { |e| y << "\n" + ' '*(28-e[0].length) + "[#{e[0].to_s}] #{e[1].to_s}" } if para_endnotes[0]
@@ -331,17 +329,17 @@ module SiSU_DigestView
           if t_o.is==:heading
             x=case t_o.ln
             when 1; l[1] +=1 #fix Mx[:lv_o]
-              '  '*0 +':A'
+              '  '*0 << ':A'
             when 2; l[2] +=1 #fix Mx[:lv_o]
-              '  '*1 +':B'
+              '  '*1 << ':B'
             when 3; l[3] +=1 #fix Mx[:lv_o]
-              '  '*2 +':C'
+              '  '*2 << ':C'
             when 4; l[4] +=1 #fix Mx[:lv_o]
-              '  '*3 +'1'
+              '  '*3 << '1'
             when 5; l[5] +=1 #fix Mx[:lv_o]
-              '  '*4 +'2'
+              '  '*4 << '2'
             when 6; l[6] +=1 #fix Mx[:lv_o]
-              '  '*5 +'3'
+              '  '*5 << '3'
             else nil
             end
           end
diff --git a/lib/sisu/v4/embedded.rb b/lib/sisu/v4/embedded.rb
index 76ace9ec..c0be9351 100644
--- a/lib/sisu/v4/embedded.rb
+++ b/lib/sisu/v4/embedded.rb
@@ -90,12 +90,9 @@ module SiSU_Embedded
     end
     def images
       src="#{@base_src_dir}/_sisu/image"
-      src_img='_sisu/image'
       ldest=@env.path.output
       img_dir="#{@env.path.output}/_sisu/image"
       @rhost.each do |remote_conn|
-        rdest="#{remote_conn[:name]}/#{@env.path.stub_pwd}/_sisu/image"
-        remote_rel=remote_conn[:name] + '/' + @f.output_path.stub.rcp
         if @md.opt.cmd.inspect =~/[vVMR]/ \
         and FileTest.directory?(src)
           FileUtils::mkdir_p(img_dir) unless FileTest.directory?(img_dir)
diff --git a/lib/sisu/v4/epub.rb b/lib/sisu/v4/epub.rb
index 481671d8..0cfdbfa5 100644
--- a/lib/sisu/v4/epub.rb
+++ b/lib/sisu/v4/epub.rb
@@ -86,7 +86,6 @@ module SiSU_EPUB
         @md=@particulars.md
         @fnb=@md.fnb
         @env=@particulars.env
-        loc=@env.path.url.output_tell
         unless @opt.cmd =~/q/
           tool=(@opt.cmd =~/[MVvz]/) \
           ? "#{@env.program.epub_viewer} #{@md.file.output_path.epub.dir}/#{@md.file.base_filename.epub}"
@@ -98,15 +97,13 @@ module SiSU_EPUB
         end
         @env.processing_path.epub_bld #(@md)
         @env.processing_path.epub_cp_images(@md)
-        dir_epub=@env.processing_path.epub
         data=nil
         SiSU_Env::FileOp.new(@md).mkdir.output.epub
         @tuned_file_array=SiSU_EPUB::Source::XHTML_Environment.new(@particulars).tuned_file_instructions
         data=@tuned_file_array
-        scr_endnotes=SiSU_EPUB::Source::Endnotes.new(@md,data).scroll
         toc=SiSU_EPUB::Source::Toc.new(@md,data).songsheet
         data=@tuned_file_array
-        scr_toc=SiSU_EPUB::Source::ScrollHeadAndSegToc.new(@md,toc).in_common #watch
+        SiSU_EPUB::Source::ScrollHeadAndSegToc.new(@md,toc).in_common #watch
         SiSU_EPUB::Source::Seg.new(@md,data).songsheet
         SiSU_EPUB::Source::Output.new(@md).songsheet
       rescue
@@ -139,7 +136,6 @@ module SiSU_EPUB
         @env,@css=particulars.env,SiSU_Style::CSS.new
       end
       def directories
-        title=File.basename(@md.fns,'.rb')
         SiSU_Env::FileOp.new(@md).mkdir.output.epub
       end
       def tuned_file_instructions
@@ -157,7 +153,6 @@ module SiSU_EPUB
       end
       def scroll
         @scr_endnotes=[]
-        format_head_scroll=SiSU_EPUB_Format::HeadScroll.new(@md)
         @data.each do |dob|
           pg=dob.dup
           unless pg.is ==:code
@@ -376,10 +371,6 @@ module SiSU_EPUB
       def level_1
         dob=@data
         linkname,link=dob.obj.strip,dob.ocn
-        if link \
-        and link !~/#/ #% keep eye on link
-          p_num=SiSU_EPUB_Format::ParagraphNumber.new(@md,link)
-        end
         title=if dob.obj !~/Document Information/
           linkname
         else
diff --git a/lib/sisu/v4/epub_concordance.rb b/lib/sisu/v4/epub_concordance.rb
index d8d9a217..3a8cea75 100644
--- a/lib/sisu/v4/epub_concordance.rb
+++ b/lib/sisu/v4/epub_concordance.rb
@@ -104,7 +104,6 @@ module SiSU_EPUB_Concordance
         @particulars,@md=particulars,particulars.md
         @data=SiSU_EPUB::Source::XHTML_Environment.new(particulars).tuned_file_instructions
         @vz=SiSU_Viz::Defaults.new
-        txt_path=%{#{@md.dir_out}}
         @fnb=@md.fnb
         @lex_button=%{<a href="http://www.jus.uio.no/sisu/" target="_top"><img border="0" height="44" width="144" valign="center" src="../_sisu/image/sisu.png" alt="SiSU home"></a>}
         @doc_details =<<WOK
@@ -288,7 +287,6 @@ WOK
             end
           end
         end
-        scr=%{<font size="1" color="#777777" face=times new roman><img border="0" height="15" width="15" src="../_sisu/image/b_doc.png" alt="Full Text">#{$ep[:hsp]}scroll:#{$ep[:hsp]}</font><font size="1" color="#222222" face=times new roman>doc##{$ep[:hsp]}</font> }
         seg=''
         @file_concordance << SiSU_EPUB_Concordance::Source::DocTitle.new(@particulars).create
         alph=%W[A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]
@@ -311,7 +309,6 @@ WOK
           keyword=SiSU_EPUB_Concordance::Source::Word.new(word,@freq[word]).html
           if keyword !~ @rxp_excluded0
             if @word_map[word][0] =~ /\d+/
-              wm=[]
               @file_concordance << %{#{keyword}#{seg}#{@word_map[word].uniq.compact.join}}
             end
             @file_concordance << '</p>'
diff --git a/lib/sisu/v4/epub_format.rb b/lib/sisu/v4/epub_format.rb
index 683228c3..a4978e6d 100644
--- a/lib/sisu/v4/epub_format.rb
+++ b/lib/sisu/v4/epub_format.rb
@@ -1471,12 +1471,12 @@ output_epub_cont_seg.close
         author=if defined? @md.creator.author \
         and @md.creator.author =~/\S+/
           m=''
-          @md.creator.author_detail.each do |x|
-            surname=x[:the] \
-            ? x[:the]
+          @md.creator.author_detail.each do |i|
+            surname=i[:the] \
+            ? i[:the]
             : ''
-            other_names=x[:others] \
-            ? ', ' + x[:others]
+            other_names=i[:others] \
+            ? ', ' + i[:others]
             : ''
             m=(m.empty?) \
             ? (surname + other_names)
@@ -1491,12 +1491,12 @@ output_epub_cont_seg.close
         editor=if defined? @md.creator.editor \
         and @md.creator.editor =~/\S+/
           m=''
-          @md.creator.editor_detail.each do |x|
-            surname=x[:the] \
-            ? x[:the]
+          @md.creator.editor_detail.each do |i|
+            surname=i[:the] \
+            ? i[:the]
             : ''
-            other_names=x[:others] \
-            ? ', ' + x[:others]
+            other_names=i[:others] \
+            ? ', ' + i[:others]
             : ''
             m=(m.empty?) \
             ? (surname + other_names)
@@ -1511,12 +1511,12 @@ output_epub_cont_seg.close
         translator=if defined? @md.creator.translator \
         and @md.creator.translator =~/\S+/
           m=''
-          @md.creator.translator_detail.each do |x|
-            surname=x[:the] \
-            ? x[:the]
+          @md.creator.translator_detail.each do |i|
+            surname=i[:the] \
+            ? i[:the]
             : ''
-            other_names=x[:others] \
-            ? ', ' + x[:others]
+            other_names=i[:others] \
+            ? ', ' + i[:others]
             : ''
             m=(m.empty?) \
             ? (surname + other_names)
@@ -1531,12 +1531,12 @@ output_epub_cont_seg.close
         illustrator=if defined? @md.creator.illustrator \
         and @md.creator.illustrator =~/\S+/
           m=''
-          @md.creator.illustrator_detail.each do |x|
-            surname=x[:the] \
-            ? x[:the]
+          @md.creator.illustrator_detail.each do |i|
+            surname=i[:the] \
+            ? i[:the]
             : ''
-            other_names=x[:others] \
-            ? ', ' + x[:others]
+            other_names=i[:others] \
+            ? ', ' + i[:others]
             : ''
             m=(m.empty?) \
             ? (surname + other_names)
@@ -1607,7 +1607,7 @@ output_epub_cont_seg.close
         WOK
       end
       def manifest_cover_image_information(md)
-        cover_image=if defined? md.make.cover_image \
+        if defined? md.make.cover_image \
         and @md.make.cover_image.is_a?(Hash) \
         and md.make.cover_image[:cover] =~/\S+/
           <<-WOK
@@ -1635,9 +1635,9 @@ output_epub_cont_seg.close
         end
         images=images.join('')
         images
-    end
-    def manifest_close
-      <<-WOK
+      end
+      def manifest_close
+        <<-WOK
   </manifest>
         WOK
       end
@@ -1879,7 +1879,7 @@ output_epub_cont_seg.close
         @headname=((t_o.is==:heading and defined? t_o.name) ? t_o.name : nil)
       else
         if @md.opt.cmd =~/M/
-          p __FILE__ +':'+ __LINE__.to_s
+          p __FILE__ << ':' << __LINE__.to_s
           p t_o.class
           p caller
         end
@@ -1895,7 +1895,7 @@ output_epub_cont_seg.close
       if defined? dob.tags \
       and dob.tags.length > 0 # insert tags "hypertargets"
         dob.tags.each do |t|
-          tags=tags +%{<a name="#{t}" />}
+          tags=tags << %{<a name="#{t}" />}
         end
       end
       tags
@@ -1989,17 +1989,17 @@ output_epub_cont_seg.close
 }
     end
     def title_heading1
-      id_u=DISABLE[:epub][:per_section_title] \
+      DISABLE[:epub][:per_section_title] \
       ? ''
       : title_heading('h1','tiny')
     end
     def title_heading2
-      id_u=DISABLE[:epub][:per_section_title] \
+      DISABLE[:epub][:per_section_title] \
       ? ''
       : title_heading('h2','tiny')
     end
     def title_heading3
-      id_u=DISABLE[:epub][:per_section_title] \
+      DISABLE[:epub][:per_section_title] \
       ? ''
       : title_heading('h3','tiny')
     end
diff --git a/lib/sisu/v4/epub_segments.rb b/lib/sisu/v4/epub_segments.rb
index 1016ab1a..ee8ab26e 100644
--- a/lib/sisu/v4/epub_segments.rb
+++ b/lib/sisu/v4/epub_segments.rb
@@ -153,7 +153,7 @@ WOK
     end
   protected
     def articles(data)
-      track,tracking,newfile=0,0,0
+      tracking,newfile=0,0
       @@is4=@@is3=@@is2=@@is1=0
       printed_endnote_seg='n'
       idx_xhtml=nil
@@ -167,14 +167,14 @@ WOK
         || dob.is==:heading_insert) \
         and dob.ln==4
           @@seg_name << dob.name
-          seg_name=dob.name
+          dob.name
         end
       end
       @@seg_name_xhtml=@@seg_name
       @@seg_total=@@seg_name.length
       testforartnum=@@seg_name_xhtml
       SiSU_Screen::Ansi.new(@md.opt.cmd,@@seg_name.length) if @md.opt.cmd =~/[MVv]/
-      map_nametags=SiSU_Particulars::CombinedSingleton.instance.get_map_nametags(@md).nametags_map #p map_nametags
+      SiSU_Particulars::CombinedSingleton.instance.get_map_nametags(@md).nametags_map #p map_nametags
       data.each do |dob|
         #if defined? dob.obj \
         #and dob.obj =~/href="#{Xx[:segment]}#+\S+?"/
@@ -220,7 +220,7 @@ WOK
           if not (dob.is==:heading \
           || dob.is==:heading_insert) \
           and dob.ln==1
-            head1=$_ #; check
+            $_ #; check
           end
         end
         if @@is4==1
diff --git a/lib/sisu/v4/epub_tune.rb b/lib/sisu/v4/epub_tune.rb
index fbb42bc4..e6e92334 100644
--- a/lib/sisu/v4/epub_tune.rb
+++ b/lib/sisu/v4/epub_tune.rb
@@ -131,7 +131,7 @@ module SiSU_EPUB_Tune
           data=SiSU_EPUB_Tune::Output.new(data,@md).hard_output
           SiSU_EPUB_Tune::Output.new(data,@md).marshal
         end
-        tuned=SiSU_EPUB_Tune::Tune.new(@data,@md).output
+        SiSU_EPUB_Tune::Tune.new(@data,@md).output
       rescue
         SiSU_Errors::InfoError.new($!,$@,@md.opt.cmd,@md.fns).error do
           __LINE__.to_s + ':' + __FILE__
diff --git a/lib/sisu/v4/git.rb b/lib/sisu/v4/git.rb
index 799c505e..f2291ba9 100644
--- a/lib/sisu/v4/git.rb
+++ b/lib/sisu/v4/git.rb
@@ -75,7 +75,7 @@ module SiSU_Git
       end
       if @env.output_dir_structure.multilingual?
         m=/((.+?)(?:\~\w{2,3})?)\.((?:-|ssm\.)?sst|ssm)$/ #watch added match for sss
-        fnn,fnb,fnt=@opt.fns[m,1],@opt.fns[m,2],@opt.fns[m,3]
+        fnb,fnt=@opt.fns[m,2],@opt.fns[m,3]
       else m=/(.+?)\.((?:-|ssm\.)?sst|ssm)$/
         fnb=@fnn=@opt.fns[m,1]
         fnt=@opt.fns[m,2]
@@ -189,7 +189,7 @@ module SiSU_Git
       end
       def locate_parse_file
         composite_src=@opt.fns=~/\.ssm$/ ? true : false
-        parse_file=if composite_src \
+        if composite_src \
         and @opt.cmd.inspect !~/m/
           ##SiSU_Assemble::Composite.new(@opt).read
           #SiSU_DAL::Source.new(@opt).read                                         # -m
diff --git a/lib/sisu/v4/harvest_authors.rb b/lib/sisu/v4/harvest_authors.rb
index e360e3a3..a6033f27 100644
--- a/lib/sisu/v4/harvest_authors.rb
+++ b/lib/sisu/v4/harvest_authors.rb
@@ -155,9 +155,9 @@ module SiSU_HarvestAuthors
     end
     def construct_book_author_index
       idx_array=@idx_array
-      idx_array.each_pair do |lang,idx_array|
+      idx_array.each_pair do |lang,idx_arr|
         @@the_idx_authors[lang] ||= {}
-        idx_array.each do |idx|
+        idx_arr.each do |idx|
           idx[:author][:last_first_format_a].each do |author|
             author=author.strip
             if @@the_idx_authors[lang][author].is_a?(NilClass)
@@ -237,18 +237,18 @@ module SiSU_HarvestAuthors
         end
         ln=SiSU_i18n::Languages.new.language.list
         harvest_languages=''
-        @the_idx.keys.each do |lng|
+        @the_idx.keys.each do |lg|
           if @env.output_dir_structure.by? == :language
-            harvest_pth="../../#{lng}/manifest"
+            harvest_pth="../../#{lg}/manifest"
             file="#{harvest_pth}/authors.html"
           elsif @env.output_dir_structure.by? == :filetype
             harvest_pth='.'
-            file="#{harvest_pth}/authors.#{lng}.html"
+            file="#{harvest_pth}/authors.#{lg}.html"
           elsif @env.output_dir_structure.by? == :filename
             harvest_pth='.'
-            file="#{harvest_pth}/authors.#{lng}.html"
+            file="#{harvest_pth}/authors.#{lg}.html"
           end
-          l=ln[lng][:t]
+          l=ln[lg][:t]
           harvest_languages += %{<a href="#{file}">#{l}</a>&nbsp;&nbsp;&nbsp;}
         end
         sv=SiSU_Env::InfoVersion.instance.get_version
@@ -365,25 +365,23 @@ WOK
             end
             @output[lng][:html] << x
             works=[]
-            a[1][:md].each do |x|
+            a[1][:md].each do |i|
               manifest_at=if @env.output_dir_structure.by? == :language
-                manifest_pth="#{@env.path.output}/#{x[:file]}"
-                x[:file] + '.html'
+                i[:file] + '.html'
               elsif @env.output_dir_structure.by? == :filetype
-                manifest_name=x[:file]
-                x[:file] + '.' + lng +  '.html'
+                i[:file] + '.' + lng +  '.html'
               elsif @env.output_dir_structure.by? == :filename
-                "./#{x[:file]}/#{x[:page]}"
+                "./#{i[:file]}/#{i[:page]}"
               else '' #error
               end
-              work=[ "#{x[:date]} #{x[:title]}", %{<p class="publication">#{x[:date]} <a href="#{manifest_at}">#{x[:title]}</a>, #{x[:author][:authors_s]}</p>} ]
+              work=[ "#{i[:date]} #{i[:title]}", %{<p class="publication">#{i[:date]} <a href="#{manifest_at}">#{i[:title]}</a>, #{i[:author][:authors_s]}</p>} ]
               works<<=(@output[lng][:html_mnt].is_a?(File)) \
-              ? (work.concat([%{<p class="publication">[<a href="#{x[:file]}.sst">src</a>]&nbsp;&nbsp;#{x[:date]} <a href="file://#{manifest_at}">#{x[:title]}</a>, #{x[:author][:authors_s]} -- [<a href="#{x[:file]}.sst">#{x[:file]}.sst</a>]</p>}]))
+              ? (work.concat([%{<p class="publication">[<a href="#{i[:file]}.sst">src</a>]&nbsp;&nbsp;#{i[:date]} <a href="file://#{manifest_at}">#{i[:title]}</a>, #{i[:author][:authors_s]} -- [<a href="#{i[:file]}.sst">#{i[:file]}.sst</a>]</p>}]))
               : work
             end
-            works.sort_by {|x| x[0]}.each do |x|
-              @output[lng][:html] << x[1]
-              @output[lng][:html_mnt] << x[2] if @output[lng][:html_mnt].is_a?(File)
+            works.sort_by {|y| y[0]}.each do |z|
+              @output[lng][:html] << z[1]
+              @output[lng][:html_mnt] << z[2] if @output[lng][:html_mnt].is_a?(File)
             end
           end
         end
diff --git a/lib/sisu/v4/harvest_topics.rb b/lib/sisu/v4/harvest_topics.rb
index bce96ced..616c9598 100644
--- a/lib/sisu/v4/harvest_topics.rb
+++ b/lib/sisu/v4/harvest_topics.rb
@@ -163,13 +163,13 @@ module SiSU_HarvestTopics
     end
     def song
       the_idx=construct_book_topic_keys
-      the_hash=construct_book_topic_hash(the_idx)
+      construct_book_topic_hash(the_idx)
     end
     def capital(txt)
       txt_a=txt.scan(/\S+/)
       tx=''
-      txt_a.each do |txt|
-        tx += txt[0].chr.capitalize + txt[1,txt.length] + ' '
+      txt_a.each do |t|
+        tx += t[0].chr.capitalize + t[1,txt.length] + ' '
       end
       tx.strip
     end
@@ -186,7 +186,7 @@ module SiSU_HarvestTopics
           names += %{<a href="authors.#{lang}.html##{s}">#{n}</a>, }
         end
       end
-      md={ filename: idx[:filename], file: idx[:file], author: names, title: idx[:title], page: idx[:page] }
+      { filename: idx[:filename], file: idx[:file], author: names, title: idx[:title], page: idx[:page] }
     end
     def capital_(txt)
       txt[0].chr.capitalize + txt[1,txt.length]
@@ -217,9 +217,9 @@ module SiSU_HarvestTopics
       idx_array=@idx_array
       @idx_a=[]
       @the_a=[]
-      idx_array.each_pair do |lang,idx_array|
+      idx_array.each_pair do |lang,idx_arr|
         @@the_idx_topics[lang] ||= {}
-        idx_array.each do |idx|
+        idx_arr.each do |idx|
           if idx[:rough_idx]
             idx_lst=idx[:rough_idx].scan(/[^:]+/)
           else
@@ -281,11 +281,11 @@ module SiSU_HarvestTopics
           end
         end
       end
-      y=@the_a.sort_by { |x| x[0] } #; y.each {|z| puts z}
+      @the_a.sort_by { |x| x[0] } #; y.each {|z| puts z}
     end
-    def construct_book_topic_hash(y)
+    def construct_book_topic_hash(t)
       @the_h={}
-      y.each do |z|
+      t.each do |z|
         x=z[0].scan(/[^|]+/)
         depth=x.length
         extract=(depth-1)
@@ -302,55 +302,55 @@ module SiSU_HarvestTopics
           { x[0] => z[1] }
         end
         if extract >= 0
-          k.each_pair do |x0,y|
+          k.each_pair do |x0,y0|
             if extract == 0
               @the_h[x0] ||={ md: [] }
-              @the_h[x0][:md] << y
+              @the_h[x0][:md] << y0
             else
               @the_h[x0] ||={}
             end
             #puts '  '*0 + x0
             if extract >= 1
-              y.each_pair do |x1,y|
+              y0.each_pair do |x1,y1|
                 if extract == 1
                   @the_h[x0][x1] ||={ md: [] }
-                  @the_h[x0][x1][:md] << y
+                  @the_h[x0][x1][:md] << y1
                 else
                   @the_h[x0][x1] ||={}
                 end
                 #puts '  '*1 + x1
                 if extract >= 2
-                  y.each_pair do |x2,y|
+                  y1.each_pair do |x2,y2|
                     if extract == 2
                       @the_h[x0][x1][x2] ||={ md: [] }
-                      @the_h[x0][x1][x2][:md] << y
+                      @the_h[x0][x1][x2][:md] << y2
                     else
                       @the_h[x0][x1][x2] ||={}
                     end
                     #puts '  '*2 + x2
                     if extract >= 3
-                      y.each_pair do |x3,y|
+                      y2.each_pair do |x3,y3|
                         if extract == 3
                           @the_h[x0][x1][x2][x3] ||={ md: [] }
-                          @the_h[x0][x1][x2][x3][:md] << y
+                          @the_h[x0][x1][x2][x3][:md] << y3
                         else
                           @the_h[x0][x1][x2][x3] ||={}
                         end
                         #puts '  '*3 + x3
                         if extract == 4
-                          y.each_pair do |x4,y|
+                          y3.each_pair do |x4,y4|
                             if extract == 4
                               @the_h[x0][x1][x2][x3][x4] ||={ md: [] }
-                              @the_h[x0][x1][x2][x3][x4][:md] << y
+                              @the_h[x0][x1][x2][x3][x4][:md] << y4
                             else
                               @the_h[x0][x1][x2][x3][x4] ||={}
                             end
                             #puts '  '*4 + x4
                             if extract == 5
-                              y.each_pair do |x5,y|
+                              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] << y
+                                  @the_h[x0][x1][x2][x3][x4][x5][:md] << y5
                                 end
                                 #puts '  '*5 + x5
                               end
@@ -370,22 +370,22 @@ module SiSU_HarvestTopics
       @the_h
     end
     def traverse_base
-      @the_h.each_pair do |x0,y|
+      @the_h.each_pair do |x0,y0|
         puts '  '*0 + x0 if x0.is_a?(String)
-        if y.is_a?(Hash)
-          y.each_pair do |x1,y|
+        if y0.is_a?(Hash)
+          y0.each_pair do |x1,y1|
             puts '  '*1 + x1 if x1.is_a?(String)
-            if y.is_a?(Hash)
-              y.each_pair do |x2,y|
+            if y1.is_a?(Hash)
+              y1.each_pair do |x2,y2|
                 puts '  '*2 + x2 if x2.is_a?(String)
-                if y.is_a?(Hash)
-                  y.each_pair do |x3,y|
+                if y2.is_a?(Hash)
+                  y2.each_pair do |x3,y3|
                     puts '  '*3 + x3 if x3.is_a?(String)
-                    if y.is_a?(Hash)
-                      y.each_pair do |x4,y|
+                    if y3.is_a?(Hash)
+                      y3.each_pair do |x4,y4|
                         puts '  '*4 + x4 if x4.is_a?(String)
-                        if y.is_a?(Hash)
-                          y.each_pair do |x5,y|
+                        if y4.is_a?(Hash)
+                          y4.each_pair do |x5,y5|
                             puts '  '*5 + x5 if x5.is_a?(String)
                           end
                         end
@@ -400,37 +400,37 @@ module SiSU_HarvestTopics
       end
     end
     def traverse
-      @the_h.each_pair do |x0,y|
+      @the_h.each_pair do |x0,y0|
         puts '  '*0 + x0 if x0.is_a?(String)
-        if y.is_a?(Hash)
-          if y.has_key?(:md)
-            y[:md].each { |x| puts '  '*5 + x[:title] }
+        if y0.is_a?(Hash)
+          if y0.has_key?(:md)
+            y0[:md].each { |x| puts '  '*5 + x[:title] }
           end
-          y.each_pair do |x1,y|
+          y0.each_pair do |x1,y1|
             puts '  '*1 + x1 if x1.is_a?(String)
-            if y.is_a?(Hash)
-              if y.has_key?(:md)
-                y[:md].each { |x| puts '  '*5 + x[:title] }
+            if y1.is_a?(Hash)
+              if y1.has_key?(:md)
+                y1[:md].each { |x| puts '  '*5 + x[:title] }
               end
-              y.each_pair do |x2,y|
+              y1.each_pair do |x2,y2|
                 puts '  '*2 + x2 if x2.is_a?(String)
-                if y.is_a?(Hash)
-                  if y.has_key?(:md)
-                    y[:md].each { |x| puts '  '*5 + x[:title] }
+                if y2.is_a?(Hash)
+                  if y2.has_key?(:md)
+                    y2[:md].each { |x| puts '  '*5 + x[:title] }
                   end
-                  y.each_pair do |x3,y|
+                  y2.each_pair do |x3,y3|
                     puts '  '*3 + x3 if x3.is_a?(String)
-                    if y.is_a?(Hash)
-                      if y.has_key?(:md)
-                        y[:md].each { |x| puts '  '*5 + x[:title] }
+                    if y3.is_a?(Hash)
+                      if y3.has_key?(:md)
+                        y3[:md].each { |x| puts '  '*5 + x[:title] }
                       end
-                      y.each_pair do |x4,y|
+                      y3.each_pair do |x4,y4|
                         puts '  '*4 + x4 if x4.is_a?(String)
-                        if y.is_a?(Hash)
-                          if y.has_key?(:md)
-                            y[:md].each { |x| puts '  '*5 + x[:title] }
+                        if y4.is_a?(Hash)
+                          if y4.has_key?(:md)
+                            y4[:md].each { |x| puts '  '*5 + x[:title] }
                           end
-                          y.each_pair do |x5,y|
+                          y4.each_pair do |x5,y5|
                             puts '  '*5 + x4 if x4.is_a?(String)
                           end
                         end
@@ -497,68 +497,68 @@ module SiSU_HarvestTopics
         html_file_close
       end
       def html_body_traverse
-        @the_idx.each_pair do |x0,y|
+        @the_idx.each_pair do |x0,y0|
           lng=x0
           if x0.is_a?(String)
             #do_string_name(lng,'lev0',x0)
             #puts '  '*0 + x0
           end
-          if y.is_a?(Hash)
-            if y.has_key?(:md)
-              y[:md].each do |x|
+          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]
               end
             end
-            y.each_pair do |x1,y|
+            y0.each_pair do |x1,y1|
               if x1.is_a?(String)
                 do_string_name(lng,'lev0',x1)
                 #puts '  '*1 + x1
               end
-              if y.is_a?(Hash)
-                if y.has_key?(:md)
-                  y[:md].each do |x|
+              if y1.is_a?(Hash)
+                if y1.has_key?(:md)
+                  y1[:md].each do |x|
                     do_hash(lng,0,x)
                     #puts '  '*5 + x[:title]
                   end
                 end
-                y.each_pair do |x2,y|
+                y1.each_pair do |x2,y2|
                   if x2.is_a?(String)
                     do_string(lng,'lev1',x2)
                     #puts '  '*2 + x2
                   end
-                  if y.is_a?(Hash)
-                    if y.has_key?(:md)
-                      y[:md].each do |x|
+                  if y2.is_a?(Hash)
+                    if y2.has_key?(:md)
+                      y2[:md].each do |x|
                         do_hash(lng,1,x)
                         #puts '  '*5 + x[:title]
                       end
                     end
-                    y.each_pair do |x3,y|
+                    y2.each_pair do |x3,y3|
                       if x3.is_a?(String)
                         do_string(lng,'lev2',x3)
                         #puts '  '*3 + x3
                       end
-                      if y.is_a?(Hash)
-                        if y.has_key?(:md)
-                          y[:md].each do |x|
+                      if y3.is_a?(Hash)
+                        if y3.has_key?(:md)
+                          y3[:md].each do |x|
                             do_hash(lng,2,x)
                             #puts '  '*5 + x[:title]
                           end
                         end
-                        y.each_pair do |x4,y|
+                        y3.each_pair do |x4,y4|
                           if x4.is_a?(String)
                             do_string(lng,'lev3',x4)
                             #puts '  '*4 + x4
                           end
-                          if y.is_a?(Hash)
-                            if y.has_key?(:md)
-                              y[:md].each do |x|
+                          if y4.is_a?(Hash)
+                            if y4.has_key?(:md)
+                              y4[:md].each do |x|
                                 do_hash(lng,3,x)
                                 #puts '  '*5 + x[:title]
                               end
                             end
-                            y.each_pair do |x5,y|
+                            y4.each_pair do |x5,y5|
                               if x5.is_a?(String)
                                 do_string(lng,'lev4',x5)
                                 #puts '  '*5 + x5
@@ -595,18 +595,18 @@ module SiSU_HarvestTopics
         end
         ln=SiSU_i18n::Languages.new.language.list
         harvest_languages=''
-        @the_idx.keys.each do |lng|
+        @the_idx.keys.each do |lg|
           if @env.output_dir_structure.by? == :language
-            harvest_pth="../../#{lng}/manifest"
+            harvest_pth="../../#{lg}/manifest"
             file="#{harvest_pth}/topics.html"
           elsif @env.output_dir_structure.by? == :filetype
             harvest_pth='.'
-            file="#{harvest_pth}/topics.#{lng}.html"
+            file="#{harvest_pth}/topics.#{lg}.html"
           elsif @env.output_dir_structure.by? == :filename
             harvest_pth='.'
-            file="#{harvest_pth}/topics.#{lng}.html"
+            file="#{harvest_pth}/topics.#{lg}.html"
           end
-          l=ln[lng][:t]
+          l=ln[lg][:t]
           harvest_languages += %{<a href="#{file}">#{l}</a>&nbsp;&nbsp;&nbsp;}
         end
         sv=SiSU_Env::InfoVersion.instance.get_version
diff --git a/lib/sisu/v4/html.rb b/lib/sisu/v4/html.rb
index 9b73823b..210bc0b3 100644
--- a/lib/sisu/v4/html.rb
+++ b/lib/sisu/v4/html.rb
@@ -92,7 +92,6 @@ module SiSU_HTML
         @md=@particulars.md
         @fnb=@md.fnb
         @env=@particulars.env
-        loc=@env.url.output_tell
         primary_output_file=(@opt.act[:html_seg][:set]==:on) \
         ? (@md.file.output_path.html_seg.dir + '/' + @md.file.base_filename.html_segtoc)
         : (@md.file.output_path.html_scroll.dir + '/' + @md.file.base_filename.html_scroll)
@@ -200,7 +199,7 @@ module SiSU_HTML
       end
       def scroll
         @scr_endnotes=[]
-        format_head_scroll=SiSU_HTML_Format::HeadScroll.new(@md)
+        SiSU_HTML_Format::HeadScroll.new(@md)
         @data.each do |dob|
           pg=dob.dup
           unless pg.is ==:code
@@ -328,7 +327,7 @@ WOK
         linkname,link=dob.obj.strip,dob.ocn
         if link \
         and link !~/#/ #% keep eye on link
-          p_num=SiSU_HTML_Format::ParagraphNumber.new(@md,link)
+          SiSU_HTML_Format::ParagraphNumber.new(@md,link)
         end
         title=if dob.obj !~/Metadata/ then linkname
         else
@@ -345,10 +344,9 @@ WOK
         end
         toc[:seg_mini]=if dob.name =~/^meta/ \
         and dob.obj =~/Document Information/
-          x=if @md.concord_make
-            format_toc.mini_concord_tail
-          else format_toc.mini_tail
-          end
+          @md.concord_make \
+          ? format_toc.mini_concord_tail
+          : format_toc.mini_tail
         else format_toc.mini_lev1
         end
         title=if dob.ocn ==0
@@ -586,7 +584,7 @@ WOK
         if defined? @md.prefix_b
           toc_shared << prefix_b
         end
-        scr_toc=if @make.build.toc? #Table of Contents added/appended here
+        if @make.build.toc? #Table of Contents added/appended here
           toc_shared << @toc[:scr]
         end
         @segtoc << @links_guide_toc
diff --git a/lib/sisu/v4/html_format.rb b/lib/sisu/v4/html_format.rb
index 1bdd7182..e69e3de3 100644
--- a/lib/sisu/v4/html_format.rb
+++ b/lib/sisu/v4/html_format.rb
@@ -187,7 +187,7 @@ module SiSU_HTML_Format
         else
           @md.file.output_path.html_seg.rel_image
         end
-        dir=SiSU_Env::FileOp.new(@md)
+        SiSU_Env::FileOp.new(@md)
         button +=%{   <p class="tiny_left"><a href="#{@md.make.home_button_image[:link]}" target="_top"><img border="0" src="#{image_path}/#{@md.make.home_button_image[:home_button]}"  width="#{@md.make.home_button_image[:w]}" height="#{@md.make.home_button_image[:h]}" alt="home icon --&gt;" /></a></p>\n}
       elsif @md.home_button_links.is_a?(Array)
         @md.home_button_links.each do |links|
@@ -221,7 +221,7 @@ module SiSU_HTML_Format
     end
     def scroll(text)
       if @md.fns =~ /\.(?:-|ssm\.)?sst$/
-        scroll=%{<td align="center" bgcolor=#{@vz.color_band2}>
+        %{<td align="center" bgcolor=#{@vz.color_band2}>
   <a href="#{Xx[:html_relative1]}html/#{@file.base_filename.html_scroll}" target="_top">
     #{text}
   </a>
@@ -301,7 +301,7 @@ module SiSU_HTML_Format
     end
     def scroll_head_navigation_band
       if @make.build.html_top_band?
-        search_and_manifest=<<WOK
+        <<WOK
 <td align="center" width="60%">
   #{make_scroll_search_form_and_manifest_link}
 </td>
@@ -380,7 +380,7 @@ WOK
     end
     def make_scroll_search_form_and_manifest_link
       wgt=SiSU_HTML_Format::Widget.new(@md)
-      scroll=%{<td align="center" bgcolor=#{@vz.color_band2}>
+      %{<td align="center" bgcolor=#{@vz.color_band2}>
   #{@vz.nav_txt_doc_link}
 </td>
 }
@@ -391,7 +391,7 @@ WOK
 </tr></table>}
     end
     def make_scroll_seg_pdf
-      manifest=scroll=seg=''
+      seg=''
       wgt=SiSU_HTML_Format::Widget.new(@md)
       seg=%{<td align="center" bgcolor=#{@vz.color_band2}>
   #{@vz.nav_txt_toc_link}
@@ -405,7 +405,6 @@ WOK
 </tr></table>}
     end
     def make_concordance
-      manifest=scroll=seg=''
       wgt=SiSU_HTML_Format::Widget.new(@md)
       %{<table summary="toc scroll and segment with pdf" border="0" cellpadding="3" cellspacing="0">
 <tr>
@@ -732,7 +731,6 @@ WOK
 #{@vz.table_close}}
     end
     def toc_next2
-      pre,nxt=false,true
       toc_nav(false,true).dup
     end
     def toc_pre_next2
@@ -931,7 +929,7 @@ WOK
       if defined? dob.tags \
       and dob.tags.length > 0 # insert tags "hypertargets"
         dob.tags.each do |t|
-          tags=tags +%{<named id="#{t}" />}
+          tags=tags << %{<named id="#{t}" />}
         end
       end
       tags
@@ -941,7 +939,7 @@ WOK
       if defined? dob.tags \
       and dob.tags.length > 0 # insert tags "hypertargets"
         dob.tags.each do |t|
-          tags=tags +%{<a name="#{t}" ></a>}
+          tags=tags << %{<a name="#{t}" ></a>}
         end
       end
       tags
diff --git a/lib/sisu/v4/html_minitoc.rb b/lib/sisu/v4/html_minitoc.rb
index fac014f7..d333e3fe 100644
--- a/lib/sisu/v4/html_minitoc.rb
+++ b/lib/sisu/v4/html_minitoc.rb
@@ -122,7 +122,6 @@
           link='metadata'
           %{<b><a href="#{link}#{@md.lang_code_insert}#{Sfx[:html]}">#{txt.obj}</a></b>}
         end
-        toc={}
         txt_obj={ txt: title }
         format_toc=SiSU_HTML_Format::FormatToc.new(@md,txt_obj)
         toc_mini=if txt.name =~/^meta/ and txt.obj=~/Document Information/
@@ -176,8 +175,7 @@
         && txt.ocn !=0
           txt.obj=txt.obj.gsub(@pat_strip_heading_name,'\1')
         end
-        toc={}
-          lnk_n_txt=%{  <a href="#{@@seg_url}#{@md.lang_code_insert}#{Sfx[:html]}##{txt.ocn}">
+        lnk_n_txt=%{  <a href="#{@@seg_url}#{@md.lang_code_insert}#{Sfx[:html]}##{txt.ocn}">
     #{txt.obj}
   </a>}
           txt_obj={ txt: lnk_n_txt }
@@ -192,8 +190,7 @@
         && txt.ocn !=0
           txt.obj=txt.obj.gsub(@pat_strip_heading_name,'\1')
         end
-        toc={}
-          lnk_n_txt=%{  <a href="#{@@seg_url}#{@md.lang_code_insert}#{Sfx[:html]}##{txt.ocn}">
+        lnk_n_txt=%{  <a href="#{@@seg_url}#{@md.lang_code_insert}#{Sfx[:html]}##{txt.ocn}">
     #{txt.obj}
   </a>}
           txt_obj={ txt: lnk_n_txt }
diff --git a/lib/sisu/v4/html_promo.rb b/lib/sisu/v4/html_promo.rb
index 6773d07f..981bd7dc 100644
--- a/lib/sisu/v4/html_promo.rb
+++ b/lib/sisu/v4/html_promo.rb
@@ -175,7 +175,7 @@ module SiSU_HTML_Promo
           @rc['search']['sisu']['action']
         else nil
         end
-        form=if action \
+        if action \
         and db
           @env.widget.search_form('sisusearch',action,db,table)
         else ''
@@ -275,36 +275,34 @@ module SiSU_HTML_Promo
       end
       def site_link #Work area
         if url_link.url
-           <<WOK
+           <<-WOK
 <p class="pane">
 #{url_link.url}
 #{image}
 #{title}
 #{subtitle}
 </a>#{nick}</p>
-WOK
+          WOK
         else
-         <<WOK
+         <<-WOK
 <p class="pane">
 #{image}
 #{title}
 #{subtitle}
 </p>
-WOK
+          WOK
         end
       end
       self
     end
     def output_form_sponsor(type,id)
       cell=cell(@ad[:promo][type][id],prod_id)
-      prod_type=((id=~/id_(?:[0-9x]){10,13}/i) ? 'isbn' : 'id')
-      id_detail=%{<p class="pane">#{prod_type}: #{prod_id}</p>}
-       <<WOK
+      <<-WOK
 <br />
 #{cell.site_link}
 #{cell.blurb}
 #{cell.links}
-WOK
+      WOK
     end
     def output_form_link(type,id)
       prod_id=id.gsub(/id_/,'')
@@ -404,7 +402,6 @@ WOK
           @ad[:promo_list][category][type].each do |i|
             if i
               id=((i.inspect =~/^\d/) ? "id_#{i.to_s.strip}" : i.to_s.strip) #watch remove .to_s ?
-              gbp=usd=euro=nil
               if defined? @ad[:promo][type][id] \
               and not @ad[:promo][type][id].nil?
                 adverts << output_form_select(type,id)
diff --git a/lib/sisu/v4/html_scroll.rb b/lib/sisu/v4/html_scroll.rb
index f3711460..d167dc57 100644
--- a/lib/sisu/v4/html_scroll.rb
+++ b/lib/sisu/v4/html_scroll.rb
@@ -156,8 +156,8 @@ module SiSU_HTML_Scroll
             and dob.obj=='Index'
               sto.heading_body4
               book_idx=SiSU_Particulars::CombinedSingleton.instance.get_idx_html(@md.opt).html_idx
-              book_idx.each do |x| #takes book index prepared for segments & strips segment identifying info
-                x.gsub!(/<a href="\S+?\.html#(\d+)">(\1(?:-\d+)?)<\/a>/,
+              book_idx.each do |y| #takes book index prepared for segments & strips segment identifying info
+                y.gsub!(/<a href="\S+?\.html#(\d+)">(\1(?:-\d+)?)<\/a>/,
                   '<a href="#\1">\2</a>')
               end
               book_idx.join("\n")
diff --git a/lib/sisu/v4/html_segments.rb b/lib/sisu/v4/html_segments.rb
index 55335845..65034738 100644
--- a/lib/sisu/v4/html_segments.rb
+++ b/lib/sisu/v4/html_segments.rb
@@ -185,7 +185,7 @@ module SiSU_HTML_Seg
     end
   protected
     def articles(data)
-      track,tracking,newfile=0,0,0
+      tracking,newfile=0,0
       @@is4=@@is3=@@is2=@@is1=0
       printed_endnote_seg='n'
       idx_html=nil
@@ -200,7 +200,7 @@ module SiSU_HTML_Seg
         || dob.is == :heading_insert) \
         && dob.ln == 4
           @@seg_name << dob.name
-          seg_name=dob.name
+          dob.name
         end
       end
       @@seg_name_html=@@seg_name
@@ -257,7 +257,7 @@ module SiSU_HTML_Seg
           if not (dob.is==:heading \
           || dob.is==:heading_insert) \
           && dob.ln==1
-            head1=$_ #; check
+            $_ #; check
           end
         end
         if @@is4==1
@@ -268,8 +268,6 @@ module SiSU_HTML_Seg
             || dob.is==:heading_insert) \
             && dob.ln==4
               if tracking != 0
-                dirout=SiSU_Env::InfoEnv.new(@md.fns)
-                dir_sisu=dirout.path.output
                 @file=SiSU_Env::FileOp.new(@md)
                 unless FileTest.directory?(@file.output_path.html_seg.dir)
                   FileUtils::mkdir_p(@file.output_path.html_seg.dir) if File.writable?("#{@file.output_path.base.dir}/.")
@@ -426,7 +424,7 @@ module SiSU_HTML_Seg
     end
     def markup(dob)
       @debug=[]
-      format_head_seg=SiSU_HTML_Format::HeadSeg.new(@md)
+      SiSU_HTML_Format::HeadSeg.new(@md)
       if dob.is !=:meta
         if dob.is==:heading \
         || dob.is==:heading_insert \
@@ -439,7 +437,7 @@ module SiSU_HTML_Seg
         || dob.is==:para
           dob_html=if dob.is==:heading \
           || dob.is==:heading_insert
-            x=if dob.ln==4
+            if dob.ln==4
               sto.seg_heading4
             elsif dob.ln==5
               sto.seg_heading5
diff --git a/lib/sisu/v4/html_tune.rb b/lib/sisu/v4/html_tune.rb
index 41845007..84100c9c 100644
--- a/lib/sisu/v4/html_tune.rb
+++ b/lib/sisu/v4/html_tune.rb
@@ -129,10 +129,10 @@ module SiSU_HTML_Tune
         songsheet_array(@data)
         #data=songsheet_array(@data)
         if @md.opt.cmd =~/M/  #Hard Output Tune Optional on/off here
-          data=SiSU_HTML_Tune::Output.new(@data,@md).hard_output
+          SiSU_HTML_Tune::Output.new(@data,@md).hard_output
           SiSU_HTML_Tune::Output.new(@data,@md).marshal
         end
-        tuned=SiSU_HTML_Tune::Tune.new(@data,@md).output
+        SiSU_HTML_Tune::Tune.new(@data,@md).output
       rescue
         SiSU_Errors::InfoError.new($!,$@,@md.opt.cmd,@md.fns).error do
           __LINE__.to_s + ':' + __FILE__
diff --git a/lib/sisu/v4/hub.rb b/lib/sisu/v4/hub.rb
index 2873c2cf..84178dff 100644
--- a/lib/sisu/v4/hub.rb
+++ b/lib/sisu/v4/hub.rb
@@ -76,7 +76,6 @@ module SiSU
     def initialize(argv)
       pwd_the=Dir.pwd
       begin                                                              #% select what to do
-        home=ENV['HOME']
         opt=SiSU_Commandline::Options.new(argv)
         SiSU::Processing.new(opt).actions
       rescue
@@ -140,7 +139,6 @@ module SiSU
       end
     end
     def manifest_on_files_translated
-      r=Px[:lng_lst_rgx]
       number_of_files={}
       @opt.files.each_with_index do |fns,i|
         fn=fns.gsub(/(?:~(?:#{@r}))?\.ss[tm]$/,'')
@@ -514,7 +512,7 @@ module SiSU
     end
     def do_initialization
       @cX=SiSU_Screen::Ansi.new(@opt.cmd).cX
-      flag=SiSU_Env::InfoProcessingFlag.new
+      SiSU_Env::InfoProcessingFlag.new
       if @opt.act[:version_info][:set]==:on              #% version information
         SiSU_Env::InfoAbout.new(@opt).sisu_version
       end
@@ -573,7 +571,6 @@ module SiSU
       if @opt.act[:dal][:set]==:on
         @retry_count= -1
         begin
-          path_image='./_sisu/processing/external_document/image'
           @get_s,@get_p,@get_pl=[],[],[]
           re_s=/(\S+?\.-sst)$/
           re_p3=/((?:https?|file):\/\/\S+?(?:\/\S+?\.ss[mt]\.txz|sisupod(?:\.txz)?|\.ssp))/
@@ -700,7 +697,7 @@ module SiSU
         puts SiSU_Markup::MarkupHistory.new(@opt).query
       elsif @opt.mod.inspect =~/--identify/
         require_relative 'sst_identify_markup'          # sst_identify_markup.rb
-        markup_version=SiSU_Markup::MarkupIdentify.new(@opt).markup_version?
+        SiSU_Markup::MarkupIdentify.new(@opt).markup_version?
       elsif  @opt.mod.inspect =~/--sitemaps/           #% sitemaps
         require_relative 'sitemaps'                    # sitemaps.rb
         SiSU_Sitemaps::Source.new(@opt).read
diff --git a/lib/sisu/v4/manifest.rb b/lib/sisu/v4/manifest.rb
index 403271b5..600b33d1 100644
--- a/lib/sisu/v4/manifest.rb
+++ b/lib/sisu/v4/manifest.rb
@@ -139,7 +139,7 @@ module SiSU_Manifest
       def url_make(url,file,src=nil)
         if @o_str.dump_or_redirect?
           ''
-        elsif :src
+        elsif src==:src #check
           %{<br />#{@brace_url.xml_open}<a href="#{url}/#{file}">#{url}/#{file}</a>#{@brace_url.xml_close}}
         else
           %{<p class="tiny">#{@brace_url.xml_open}<a href="#{url}/#{file}">#{url}/#{file}</a>#{@brace_url.xml_close}</p>}
@@ -208,14 +208,13 @@ module SiSU_Manifest
             @m << { mu: mu, l: lng, rel: mr }
           end
         end
-        manifests
         @m=@m.uniq
       end
       def languages(id,file)
         flv=published_manifests?
         @manifest[:html] << %{<tr><th class="left"><div id="horizontal_links"><ul id="horizontal">\n}
         flv.each do |l|
-          lang=SiSU_Translate::Source.new(@md,@language,l[:n]).language_list
+          SiSU_Translate::Source.new(@md,@language,l[:n]).language_list
           @manifest[:txt] << "#{l[:mu]} #{l[:l]}\n"
           @manifest[:html] << %{<li class="norm"><a href="#{l[:rel]}">#{l[:l]}</a>&nbsp;&nbsp;&nbsp;</li>}
         end
@@ -651,7 +650,7 @@ WOK
                 if st.is_a?(Array)
                   st.each do |v|
                     if v.is_a?(Array)
-                      v.each do |w,i|
+                      v.each do |w|
                         @manifest[:html] << %{<p class="it#{i}">#{w}</p>\n}
                       end
                     else
@@ -787,11 +786,7 @@ WOK
         begin
           make=SiSU_Env::ProcessingSettings.new(@md)
           minitoc=SiSU_HTML_MiniToc::TocMini.new(@md,data).songsheet.join("\n")
-          id,file='',''
           vz=SiSU_Viz::Defaults.new
-          search_form=(make.build.search_form?) \
-          ? "<td>#{@env.widget_static.search_form}</td>"
-          : ''
           format_head_toc=SiSU_HTML_Format::HeadToc.new(@md)
           @manifest[:html] <<<<WOK
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
diff --git a/lib/sisu/v4/manpage.rb b/lib/sisu/v4/manpage.rb
index 3b85183c..c3e0bbfb 100644
--- a/lib/sisu/v4/manpage.rb
+++ b/lib/sisu/v4/manpage.rb
@@ -70,7 +70,6 @@ module SiSU_Manpage
     include SiSU_ManpageFormat
   require_relative 'shared_metadata'                    # shared_metadata.rb
   require_relative 'shared_txt'                         # shared_txt.rb
-  pwd=Dir.pwd
   @@alt_id_count,@@alt_id_count,@@tablehead,@@number_of_cols=0,0,0,0
   @@tablefoot=''
   class Source
@@ -86,7 +85,6 @@ module SiSU_Manpage
       begin
         @md=SiSU_Param::Parameters.new(@opt).get
         @env=SiSU_Env::InfoEnv.new(@opt.fns)
-        path=@env.path.output_tell
         tool=(@opt.cmd =~/[MVv]/) \
         ?  "#{@env.program.text_editor} #{@md.file.output_path.manpage.dir}/#{@md.file.base_filename.manpage}"
         : "[#{@opt.f_pth[:lng_is]}] #{@opt.fno}"
@@ -170,14 +168,6 @@ GSUB
         @manpage[:metadata]=SiSU_Metadata::Summary.new(@md).manpage.metadata
       end
       def manpage_tail
-        vz=SiSU_Viz::Defaults.new
-        generator="Generated by: #{@md.sisu_version[:project]} #{@md.sisu_version[:version]} of #{@md.sisu_version[:date_stamp]} (#{@md.sisu_version[:date]})"  if @md.sisu_version[:version]
-        lastdone="Last Generated on: #{Time.now}"
-        rubyv="Ruby version: #{@md.ruby_version}"
-        sc=if @md.sc_info
-          "Source file:    #{@md.sc_filename}#{@br}Version number: #{@md.sc_number}#{@br}Version date:   #{@md.sc_date}#{@br}"
-        else ''
-        end
         @manpage[:tail] <<<<WOK
 #{@br}
 .TP
@@ -206,8 +196,7 @@ WOK
       def manpage_structure(dob='',hname='') #% Used to extract the structure of a document
         if dob.is==:heading
           lv=dob.ln
-          n=dob.ln - 1
-          n3=dob.ln + 2
+          dob.ln + 2
         else lv=nil
         end
         wrapped=if dob.is==:para \
@@ -260,13 +249,12 @@ WOK
         @@endnotes[:para]=[]
       end
       def markup(data)                                                       # Used for major markup instructions
-        dir=SiSU_Env::InfoEnv.new(@md.fns)
+        SiSU_Env::InfoEnv.new(@md.fns)
         @data_mod,@endnotes,@level,@cont,@copen,@manpage_contents_close=Array.new(6){[]}
         (0..6).each { |x| @cont[x]=@level[x]=false }
         (4..6).each { |x| @manpage_contents_close[x]='' }
         #manpage_tail # stop call
         table_message='[table omitted, see other document formats]'
-        fix=[]
         #manpage_metadata
         data.each do |dob|
           if dob.is==:comment \
@@ -325,8 +313,6 @@ WOK
               gsub(/\A(.+?)\s*\Z/m,".nf\n\\1\n.fi")
           end
           dob.obj=dob.obj.gsub(/(?:#{Mx[:br_line]}|#{Mx[:br_nl]})+\s*/m,"\n\n")          # watch
-          blit=dob.obj.scan(/\[[^\]]+\]|[^\[]+/)
-          blit_array=[]
           dob.obj=dob.obj.gsub(/#{Mx[:gl_o]}:name#\S+?#{Mx[:gl_c]}/mi,'').               #added
             gsub(/#{Mx[:br_page]}\s*|#{Mx[:br_page_new]}|#{Mx[:br_page_line]}/,'').      # remove page breaks, you may wish to have a line across the page break instead
             gsub(/(^|#{Mx[:gl_c]}|\s)#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'\1\2').
@@ -336,7 +322,6 @@ WOK
             gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}\s*(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/,'    [ \1 ]'). #"[ #{dir.url.images_local}\/\\1 ]")
             gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}\s*(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}image/,'    [ \1 ]'). #"[ #{dir.url.images_local}\/\\1 ]")
             gsub(/^(?:^|[^_\\])#{Mx[:lnk_o]}\s*\S+?\.(?:png|jpg|gif)\s+.+?"(.*?)"\s*#{Mx[:lnk_c]}\S+/,'[image: "\1"]')
-          wordlist=dob.obj.scan(/\S+/)
           if dob.obj !~/(^#{Rx[:meta]}|#{Mx[:br_eof]}|#{Mx[:br_endnotes]})/
             if dob.obj =~@regx #/.+?<~\d+;\w\d+;\w\d+>.*/ #watch change
               paranum=dob.obj[@regx,3]
@@ -380,7 +365,6 @@ WOK
         @manpage
       end
       def publish(manpage)
-        divider='='
         content=[]
         date=if defined? @md.date.modified \
         and @md.date.modified
@@ -390,8 +374,6 @@ WOK
           @md.date.published
         else SiSU_Env::InfoDate.new.year #date missing decide on action
         end
-        manpage_name,manpage_synopsis='',''
-        manpg={}
         proj=SiSU_Env::InfoVersion.instance.get_version
         manpage[:open] = %{.TH "#{@md.fnb}" "#{@md.make.manpage['section']}" "#{date}" "#{proj[:version]}" "#{@md.title.main}"#{@md.make.manpage['name']}#{@md.make.manpage['synopsis']}}
         content << manpage[:open]
diff --git a/lib/sisu/v4/odf.rb b/lib/sisu/v4/odf.rb
index c3746b06..5350f5a7 100644
--- a/lib/sisu/v4/odf.rb
+++ b/lib/sisu/v4/odf.rb
@@ -164,22 +164,13 @@ module SiSU_ODF
         @@odf[:metadata]=SiSU_Metadata::Summary.new(@md).odf.metadata
       end
       def odf_tail
-        generator="Generated by: #{@md.sisu_version[:project]} #{@md.sisu_version[:version]} of #{@md.sisu_version[:date_stamp]} (#{@md.sisu_version[:date]})"  if @md.sisu_version[:version]
-        lastdone="Last Generated on: #{Time.now}"
-        rubyv="Ruby version: #{@md.ruby_version}"
-        sc=if @md.sc_info
-          "Source file:    #{@md.sc_filename}\nVersion number: #{@md.sc_number}\nVersion date:   #{@md.sc_date}\n"
-        else ''
-        end
-        url=@md.fnb
-        fn=@md.file.base_filename.manifest
         manifest="#{@md.file.output_path.manifest.url}/#{@md.file.base_filename.manifest}"
         @@odf[:tail] << %{<text:p text:style-name="P_normal">Available document outputs: <br /> &lt;<text:a xlink:type="simple" xlink:href="#{manifest}">#{manifest}</text:a>&gt;</text:p>}
         @@odf[:tail] << %{\n<text:p text:style-name="P_normal">SiSU: &lt;<text:a xlink:type="simple" xlink:href="http://www.jus.uio.no/lm">www.jus.uio.no/sisu</text:a>&gt; and &lt;<text:a xlink:type="simple" xlink:href="http://www.sisudoc.org">www.sisudoc.org</text:a>&gt;</text:p>}
         @@odf[:tail] << "\n</office:text></office:body></office:document-content>"
       end
       def set_bookmark_tag(dob)
-        tags=SiSU_ODF_Format::Tags.new.set_bookmark_tag(dob)
+        SiSU_ODF_Format::Tags.new.set_bookmark_tag(dob)
       end
       def heading(dob,p_num)
         m=/#{$1}/
@@ -205,7 +196,6 @@ module SiSU_ODF
         dob
       end
       def toc(dob,p_num)
-        m=/#{$1}/
         hardspace=(dob.lv =~/[A-C]/i) \
         ? '<text:p text:style-name="Standard"/>'
         : ''
@@ -216,7 +206,7 @@ module SiSU_ODF
         dob
       end
       def image_src(i)
-        image_source=if @md.fns =~/\.ss[tm]$/ \
+        if @md.fns =~/\.ss[tm]$/ \
         and FileTest.file?("#{@env.path.image_source_include}/#{i}") #review
           @env.path.image_source_include
         elsif @md.opt.f_pth[:pth] =~/\/\S+?\/sisupod\/\S+?\/sisupod\/doc/
@@ -245,7 +235,7 @@ module SiSU_ODF
       def image_odf(img)
         # copy image to od image directory (unless exists)
         # divide pixel dimension by 37.79485 and retain 3 decimal places
-        m,u=img[1],img[2]
+        m=img[1]
         i=/^(\S+?\.(?:png|jpg|gif))/.match(m).captures.join if m =~/^(\S+?\.(?:png|jpg|gif))/
         c=/^\S+?\.(?:png|jpg|gif)\s+.+?"(.*?)"/.match(m).captures.join if m =~/^\S+?\.(?:png|jpg|gif)\s+.+?"(.*?)"/
         w,h=/\s(\d+)x(\d+)/.match(m).captures if m =~/\s\d+x\d+/
@@ -254,7 +244,6 @@ module SiSU_ODF
         h=/([0-9]+\.\d{0,3})/.match(h).captures.join
         w=/([0-9]+\.\d{0,3})/.match(w).captures.join
         image_source=image_src(i)
-        pwd=Dir.pwd
         if image_source
           if FileTest.file?("#{image_source}/#{i}")
             FileUtils::cp("#{image_source}/#{i}","#{@env.processing_path.odt}/Pictures/#{i}")
@@ -315,7 +304,7 @@ module SiSU_ODF
         t
       end
       def text_link_odf_bookmark(txt,url,trail)
-        map_nametags=SiSU_Particulars::CombinedSingleton.instance.get_map_nametags(@md).nametags_map
+        SiSU_Particulars::CombinedSingleton.instance.get_map_nametags(@md).nametags_map
         %{<text:bookmark-ref text:reference-format="text" text:ref-name="#{url}">#{txt.strip}</text:bookmark-ref>#{trail}}
       end
       def text_link(dob)
@@ -582,7 +571,7 @@ module SiSU_ODF
         wordlist
       end
       def markup(data)                                                                 # Used for major markup instructions
-        safe_characters=/[^a-zA-Z0-9}{\/?,."';:)(><\-_&!@%~#\]\[*=$| \n+`#{Mx[:tc_p]}]/u
+        #safe_characters=/[^a-zA-Z0-9}{\/?,."';:)(><\-_&!@%~#\]\[*=$| \n+`#{Mx[:tc_p]}]/u
         dir=SiSU_Env::InfoEnv.new(@md.fns)
         dir.path.odt_bld
         @data_mod,@endnotes,@level,@cont,@copen,@odf_contents_close=Array.new(6){[]}
@@ -590,7 +579,6 @@ module SiSU_ODF
         (0..6).each { |x| @cont[x]=@level[x]=false }
         (4..6).each { |x| @odf_contents_close[x]='' }
         odf_tail #($1,$2)
-        fix=[]
         bullet=image_src('bullet_09.png')
         if bullet
           if FileTest.file?("#{bullet}/bullet_09.png")
@@ -726,13 +714,6 @@ WOK
           x
         else ''
         end
-        breakpage=if @md.pagenew \
-        or @md.pagebreak
-          ' fo:break-before="page"'
-        elsif @md.pageline ##fix
-          ''
-        else ''
-        end
         x=<<WOK
 <?xml version="1.0" encoding="UTF-8"?>
 <office:document-content xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" xmlns:math="http://www.w3.org/1998/Math/MathML" xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" xmlns:ooo="http://openoffice.org/2004/office" xmlns:ooow="http://openoffice.org/2004/writer" xmlns:oooc="http://openoffice.org/2004/calc" xmlns:dom="http://www.w3.org/2001/xml-events" xmlns:xforms="http://www.w3.org/2002/xforms" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:rpt="http://openoffice.org/2005/report" xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:grddl="http://www.w3.org/2003/g/data-view#" xmlns:tableooo="http://openoffice.org/2009/table" xmlns:field="urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0" xmlns:formx="urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0" xmlns:css3t="http://www.w3.org/TR/css3-text/" office:version="1.2"><office:scripts/>
@@ -753,10 +734,8 @@ WOK
       def post
       end
       def publish
-        divider='='
         content=[]
         br_pg='<text:p text:style-name="P_normal_page_new"> </text:p>'
-        data=@data
         content <<
           @@odf[:head] <<
           @@odf[:toc] <<
diff --git a/lib/sisu/v4/odf_format.rb b/lib/sisu/v4/odf_format.rb
index b1eb51ae..348ebb62 100644
--- a/lib/sisu/v4/odf_format.rb
+++ b/lib/sisu/v4/odf_format.rb
@@ -70,12 +70,12 @@ module SiSU_ODF_Format
     def set_ref_and_display
       set_ref=@paranum.gsub(/(\d+)/,' <text:span text:style-name="Span_subscript"><text:reference-mark-start text:name="\1"/><text:reference-mark-end text:name="\1"/></text:span>')
       disp=@paranum.gsub(/(\d+)/,' <text:span text:style-name="Span_subscript">[\1]</text:span>')
-      ocn={ display: disp, set_ref: set_ref }
+      { display: disp, set_ref: set_ref }
     end
     def set_bookmark_and_display
       set_ref=@paranum.gsub(/(\d+)/,' <text:span text:style-name="Span_subscript"><text:bookmark-start text:name="\1"/><text:bookmark-end text:name="\1"/></text:span>')
       disp=@paranum.gsub(/(\d+)/,' <text:span text:style-name="Span_subscript">[\1]</text:span>')
-      ocn={ display: disp, set_ref: set_ref }
+      { display: disp, set_ref: set_ref }
     end
     def name
       @paranum.gsub(/(\d+)/,'<a name="\1"></a>')
@@ -225,7 +225,7 @@ module SiSU_ODF_Format
       end
       %{<table:table-row>#{@br}} +
       %{<table:table-cell office:value-type="string">#{@br}} +
-      %{<text:p text:style-name="#{txt_name_row}">#{@br}}
+      %{<text:p text:style-name="#{txt_name_row}">#{@br}} +
       %{#{str}} +
       %{</text:p>#{@br}} +
       %{</table:table-cell>#{@br}} +
diff --git a/lib/sisu/v4/options.rb b/lib/sisu/v4/options.rb
index 20499964..8ad92f8f 100644
--- a/lib/sisu/v4/options.rb
+++ b/lib/sisu/v4/options.rb
@@ -159,7 +159,6 @@ module SiSU_Commandline
     end
     def find_all(find_flag,opt)
       if find_flag
-        pwd_set=Dir.pwd
         x=Dir.glob('*.ss[tm]')
         Px[:lng_lst].each do |d|
           if FileTest.directory?(d)
@@ -172,7 +171,6 @@ module SiSU_Commandline
     end
     def find_select(find_flag,opt)
       if find_flag
-        pwd_set=Dir.pwd
         x=[]
         if opt.inspect =~/"[a-zA-Z][a-zA-Z0-9._-]+?"/
           opt.each do |g|
@@ -221,7 +219,7 @@ module SiSU_Commandline
         end
         r=Px[:lng_lst_rgx].gsub(/\|#{@lng_base}\|/,'|')
         @lang_regx=%r{(?:#{r})}
-        z=if find_flag
+        if find_flag
           (f.length > 0) \
           ? (b + find_select(find_flag,f))
           : find_all(find_flag,b)
@@ -270,9 +268,7 @@ module SiSU_Commandline
           SiSU_Screen::Ansi.new(@cmd,"\tsisu " + @cmd +  ' ' + @mod.join(' ') + ' ' + @files.join(' ') + "\n").print_brown
         end
       end
-#     @files=@files.uniq
       @@act ? @act=@@act : @@act=@act=opt_act
-      @files
       self
     end
     def sisu_document_make_pod
@@ -283,7 +279,7 @@ module SiSU_Commandline
         "#{pod_make_path}/#{makefile_name}"
       end
       def makefile_read(pod_make_path)
-        f=if FileTest.file?(makefile(pod_make_path))
+        if FileTest.file?(makefile(pod_make_path))
           sisu_doc_makefile=IO.read(makefile(pod_make_path), mode: 'r:utf-8')
           sisu_doc_makefile.split(/\s*\n\s*\n/m)
         else nil
@@ -293,7 +289,7 @@ module SiSU_Commandline
     end
     def set_files_and_paths_and_general_extract(s)
       c,w='',''
-      m,f,pth,z,lng,lngs=[],[],[],[],[],[]
+      m,f,pth,lng,lngs=[],[],[],[],[]
       lng_is=''
       a=s.split(/\s+/)
       r_l=Px[:lng_lst].join('|')
@@ -316,11 +312,9 @@ module SiSU_Commandline
             pt=Pathname.new(fullname)
             FileUtils::mkdir_p(pt.to_s)
             pod_make_path=fullname + '/sisupod/doc/_sisu'
-            pod_make_path_file=pod_make_path
             make_instruct_array=sisu_document_make_pod.makefile_read(pod_make_path)
             @make_instructions_pod=HeaderCommon.new(make_instruct_array).sisu_document_make_instructions
             Dir.chdir(pt.realpath)
-            options=s.gsub(/(\s+--?\S+)+.+/,'\1')
             system("
               chdir #{fullname}
               tar xaf #{pwd}/#{x}
@@ -470,38 +464,37 @@ module SiSU_Commandline
       cmd,mod,files=@cmd,@mod,@files
       if not m.empty? \
       and m.inspect =~/"--pdf-/
-       ps,psa='',[]
-       mod << '--pdf'
-       m.each do |m|
-         if m =~ /^--pdf-(?:(?:l|landscape)(?:-(?:a4|letter|a5|b5|legal))?|(?:a4|letter|a5|b5|legal)-(?:l|landscape))$/
-           mod << '--landscape'
-         end
-         if m =~ /^--pdf-(?:(?:p|portrait)(?:-(?:a4|letter|a5|b5|legal))?|(?:a4|letter|a5|b5|legal)-(?:p|portrait))$/
-           mod << '--portrait'
-         end
-         if m =~ /^--pdf(?:-(?:a4|letter|a5|b5|legal)(?:-(?:[lp]|landscape|portrait))?|(?:-(?:[lp]|landscape|portrait))(?:-(?:a4|letter|a5|b5|legal)))$/
-           if m =~ /^--pdf(?:-a4(?:-(?:[lp]|landscape|portrait))?|(?:-(?:[lp]|landscape|portrait))-a4)$/
-             mod << '--papersize-a4'
-           end
-           if m =~ /^--pdf(?:-a5(?:-(?:[lp]|landscape|portrait))?|(?:-(?:[lp]|landscape|portrait))-a5)$/
-             mod << '--papersize-a5'
-           end
-           if m =~ /^--pdf(?:-b5(?:-(?:[lp]|landscape|portrait))?|(?:-(?:[lp]|landscape|portrait))-b5)$/
-             mod << '--papersize-b5'
-           end
-           if m =~ /^--pdf(?:-letter(?:-(?:[lp]|landscape|portrait))?|(?:-(?:[lp]|landscape|portrait))-letter)$/
-             mod << '--papersize-letter'
-           end
-           if m =~ /^--pdf(?:-legal(?:-(?:[lp]|landscape|portrait))?|(?:-(?:[lp]|landscape|portrait))-legal)$/
-             mod << '--papersize-legal'
-           end
-         end
-       end
-       mod=mod.uniq
+        mod << '--pdf'
+        m.each do |s|
+          if s =~ /^--pdf-(?:(?:l|landscape)(?:-(?:a4|letter|a5|b5|legal))?|(?:a4|letter|a5|b5|legal)-(?:l|landscape))$/
+            mod << '--landscape'
+          end
+          if s =~ /^--pdf-(?:(?:p|portrait)(?:-(?:a4|letter|a5|b5|legal))?|(?:a4|letter|a5|b5|legal)-(?:p|portrait))$/
+            mod << '--portrait'
+          end
+          if s =~ /^--pdf(?:-(?:a4|letter|a5|b5|legal)(?:-(?:[lp]|landscape|portrait))?|(?:-(?:[lp]|landscape|portrait))(?:-(?:a4|letter|a5|b5|legal)))$/
+            if s =~ /^--pdf(?:-a4(?:-(?:[lp]|landscape|portrait))?|(?:-(?:[lp]|landscape|portrait))-a4)$/
+              mod << '--papersize-a4'
+            end
+            if s =~ /^--pdf(?:-a5(?:-(?:[lp]|landscape|portrait))?|(?:-(?:[lp]|landscape|portrait))-a5)$/
+              mod << '--papersize-a5'
+            end
+            if s =~ /^--pdf(?:-b5(?:-(?:[lp]|landscape|portrait))?|(?:-(?:[lp]|landscape|portrait))-b5)$/
+              mod << '--papersize-b5'
+            end
+            if s =~ /^--pdf(?:-letter(?:-(?:[lp]|landscape|portrait))?|(?:-(?:[lp]|landscape|portrait))-letter)$/
+              mod << '--papersize-letter'
+            end
+            if s =~ /^--pdf(?:-legal(?:-(?:[lp]|landscape|portrait))?|(?:-(?:[lp]|landscape|portrait))-legal)$/
+              mod << '--papersize-legal'
+            end
+          end
+        end
+        mod=mod.uniq
       end
       unless m.empty?
-        m.each do |m|
-          case m
+        m.each do |s|
+          case s
           when /^--(?:color-toggle)$/;                               c=c+'c'
           when /^--(?:color-off)$/;                                  c=c+'k'
           when /^--(?:conf|config|configure|init|initialize|init-site)$/;                        c=c+'CC'
@@ -509,7 +502,7 @@ module SiSU_Commandline
           when /^--(?:txt|text|plaintext)$/;                         c=c+'t'
           when /^--(?:html)$/;                                       c=c+'h'
           when /^--(?:html-scroll|html-seg)$/;                       c=c+'H'
-            mod << m
+            mod << s
           when /^--(?:epub)$/;                                       c=c+'e'
           when /^--(?:od[ft])$/;                                     c=c+'o'
           when /^--(?:pdf)$/;                                        c=c+'p'
@@ -547,7 +540,7 @@ module SiSU_Commandline
           when /^--(?:verbose(?:[=-]1)?)$/;                          c=c+'v'
           when /^--(?:version)$/;                                    c=c+'v'
           when /^--(?:verbose[=-]0|quiet|silent)$/;                  c=c+'q'
-          else mod << m                                     #mod only contains command modifiers; commands converted to character
+          else mod << s                                     #mod only contains command modifiers; commands converted to character
           end
         end
       end
@@ -578,7 +571,7 @@ module SiSU_Commandline
         end
       end
       if cmd !~/y/
-        extra+=if cmd =~/[abeHhIiNopQsSstwXxz]/ \
+        extra+=if cmd =~/[abeHhIiNopQSstwXxz]/ \
         and cmd !~/y/
           'ym'                       #% add manifest
         elsif (cmd =~/[Dd]/ \
diff --git a/lib/sisu/v4/param.rb b/lib/sisu/v4/param.rb
index cc9f7018..fb2061a7 100644
--- a/lib/sisu/v4/param.rb
+++ b/lib/sisu/v4/param.rb
@@ -116,7 +116,6 @@ module SiSU_Param
         else
           param_msg='Parameters extracted'
           fns_array=@env.read_source_file(@opt.fns)
-          md=SiSU_Param::Parameters::Instructions.new(fns_array,@opt)
           @md=SiSU_Param::Parameters::Instructions.new(fns_array,@opt).extract
           @md
         end
@@ -947,7 +946,6 @@ module SiSU_Param
         @fnstex=@fns.gsub(/_/,'\_\-').gsub(/\./,'.\-')
         @flag_endnotes,@flag_auto_endnotes,@flag_separate_endnotes=false,false,false
         @flag_separate_endnotes_make=true
-        regx_date=/^\d{4}(?:-(?:[0][0-9]|1[0-2])(-(?:[0-2][0-9]|3[01]))?)?$/
         ver=SiSU_Env::InfoVersion.instance
         @sisu_version=ver.get_version
         @ruby_version=ver.rbversion
@@ -980,11 +978,11 @@ module SiSU_Param
             when /^@publisher:\s+(.+)/m                                        #% * header metadata - publisher
               @publisher=SiSU_Param::Parameters::Md.new($1.strip,@opt,@env).current_publisher
               @current_publisher=@publisher
-            when /^@rights:(.+)/m;                                             #% * header metadata - rights
+            when /^@rights:(.+)/m                                              #% * header metadata - rights
               @rights=SiSU_Param::Parameters::Md.new($1.strip,@opt,@env).rights
-            when /^@classify:(.+)/m; classify=$1                               #% * header metadata - classify
+            when /^@classify:(.+)/m                                            #% * header metadata - classify
               @classify=SiSU_Param::Parameters::Md.new($1.strip,@opt,@env).classify
-            when /^@identifier:(.+)/m; identify=$1                               #% * header metadata - identifier
+            when /^@identifier:(.+)/m                                          #% * header metadata - identifier
               @identifier=SiSU_Param::Parameters::Md.new($1.strip,@opt,@env).identifier
             when /^@original:(.+)/m                                            #% * header metadata - original (document)
               @original=SiSU_Param::Parameters::Md.new($1.strip,@opt,@env).original
@@ -1218,9 +1216,9 @@ module SiSU_Param
            u.each do |l|
              v << l.scan(/[^:]+/m)
            end
-           v.each do |m|
-             m[-1]=m[-1].scan(/[^|]+/m) if m[-1] =~/[|]/m
-             @topic_register_array << m
+           v.each do |s|
+             s[-1]=s[-1].scan(/[^|]+/m) if s[-1] =~/[|]/m
+             @topic_register_array << s
            end
            @topic_register_array
         end
diff --git a/lib/sisu/v4/param_identify_markup.rb b/lib/sisu/v4/param_identify_markup.rb
index 56cc3992..66252af2 100644
--- a/lib/sisu/v4/param_identify_markup.rb
+++ b/lib/sisu/v4/param_identify_markup.rb
@@ -81,11 +81,6 @@ module SiSU_MarkupType
         end
         @flag_2_0,@flag_66,@flag_57,@flag_38=false,false,false,false
         @cont.each_with_index do |y,i|
-          if y =~/^(?:0\{?~links?|@links?:)\s/
-            links=unless y =~/\{.+?\}\S+/; oldlinks=' (pre 0.20.4 header links)'
-            else ' (post 0.20.4 header links)'
-            end
-          end
           if y =~/^@make:|^@classify|^\s\s?:\S+?:\s+\S/
             version=2.0.to_f
             @version[:determined]=version
diff --git a/lib/sisu/v4/param_make.rb b/lib/sisu/v4/param_make.rb
index 675c0955..616ef77d 100644
--- a/lib/sisu/v4/param_make.rb
+++ b/lib/sisu/v4/param_make.rb
@@ -176,7 +176,7 @@ module SiSU_Param_Make
         { page_new: page_new, page_break: page_break, page_line: page_line }
       end
       def language
-        l=if @h['language'] && (@h['language']=~/\S{2,}/)
+        if @h['language'] && (@h['language']=~/\S{2,}/)
           ((@h['language'] =~/,/) \
           ? (@h['language'].split(/,\s*/))
           : [ @h['language'] ])
@@ -186,7 +186,7 @@ module SiSU_Param_Make
       def bold
         m=@h['bold']
         i=(m=~/\/i$/)? 'i' : ''
-        z=if m
+        if m
           x=m.gsub(/^\/(.+?)\/i?/,'\1').
             gsub(/\((?:\?:)?/,'(?:')                                         # avoid need to escape use of brackets within regex provided
           rgx='\b(' + x + ')\b'
@@ -198,7 +198,7 @@ module SiSU_Param_Make
       def italics
         m=@h['italics']
         i=((m=~/\/i$/) ? 'i' : '')
-        z=if m
+        if m
           x=m.gsub(/^\/(.+?)\/i?/,'\1').
             gsub(/\((?:\?:)?/,'(?:')                                         # avoid need to escape use of brackets within regex provided
           rgx='\b(' + x + ')\b'
@@ -216,7 +216,7 @@ module SiSU_Param_Make
       end
       def substitute
         m=@h['substitute']
-        z=if m
+        if m
           w=m.scan(/\/(.+?)\/(i?,)\s*'(.+?)'(?:\s+|\s*;\s*|$)/)
           arr_hash=[]
           matches=''
@@ -430,12 +430,10 @@ module SiSU_Param_Make
         {w: w, h: h}
       end
       def home_button_text
-        s=if @h['home_button_text']
+        if @h['home_button_text']
           @h['home_button_text'].split(/\s*;\s*/)
         else nil
         end
-        #l,n=Db[:home_button],'make.home_button_text'
-        #validate_length(s,l,n)
       end
       def home_button_image
         s=nil
@@ -488,7 +486,7 @@ module SiSU_Param_Make
         end
       end
       def footer
-        s=if @h['footer']
+        if @h['footer']
           @h['footer'].split(/\s*;\s*/)
         else nil
         end
diff --git a/lib/sisu/v4/plaintext.rb b/lib/sisu/v4/plaintext.rb
index b916f081..09168466 100644
--- a/lib/sisu/v4/plaintext.rb
+++ b/lib/sisu/v4/plaintext.rb
@@ -70,7 +70,6 @@ module SiSU_Plaintext
   require_relative 'shared_txt'                         # shared_txt.rb
   include SiSU_Param
   include SiSU_Viz
-  pwd=Dir.pwd
   @@alt_id_count,@@alt_id_count,@@tablehead,@@number_of_cols=0,0,0,0
   @@tablefoot=''
   class Source
@@ -85,7 +84,6 @@ module SiSU_Plaintext
         md=SiSU_Param::Parameters.new(@opt).get
         env=SiSU_Env::InfoEnv.new(@opt.fns)
         unless @opt.cmd =~/q/
-          path=env.path.output_tell
           tool=(@opt.cmd =~/[MVv]/) \
           ? "#{env.program.text_editor} #{md.file.output_path.txt.dir}/#{md.file.base_filename.txt}"
           : "[#{@opt.f_pth[:lng_is]}] #{@opt.fno}"
@@ -189,7 +187,6 @@ WOK
       def plaintext_tail
 #       env=SiSU_Env::InfoEnv.new(@md.fns)
         vz=SiSU_Viz::Defaults.new
-        base_url="#{@env.url.root}/#{@md.fnb}"
         generator="Generated by: #{@md.sisu_version[:project]} #{@md.sisu_version[:version]} of #{@md.sisu_version[:date_stamp]} (#{@md.sisu_version[:date]})"  if @md.sisu_version[:version]
         lastdone="Last Generated on: #{Time.now}"
         rubyv="Ruby version: #{@md.ruby_version}"
@@ -268,14 +265,13 @@ WOK
         @@endnotes[:para]=[]
       end
       def markup(data)                                                       # Used for major markup instructions
-        dir=SiSU_Env::InfoEnv.new(@md.fns)
+        SiSU_Env::InfoEnv.new(@md.fns)
         @data_mod,@endnotes,@level,@cont,@copen,@plaintext_contents_close=Array.new(6){[]}
         (0..6).each { |x| @cont[x]=@level[x]=false }
         (4..6).each { |x| @plaintext_contents_close[x]='' }
         plaintext_tail #($1,$2)
         plaintext_metadata
         table_message='[table omitted, see other document formats]'
-        fix=[]
         data.each do |dob|
           dob.obj=dob.obj.gsub(/#{Mx[:gr_o]}Th?#{Mx[:tc_p]}.+/um,"#{@br}#{table_message}"). #fix
             gsub(/.+?#{Mx[:gl_o]}-##{Mx[:gl_c]}/,'').                              # remove dummy headings (used by html) #check also [~-]#
@@ -337,7 +333,6 @@ WOK
             gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/,'    [ \1 ]'). #"[ #{dir.url.images_local}\/\\1 ]")
             gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}image/,'    [ \1 ]').
             gsub(/(?:^|[^_\\])\{\s*\S+?\.(?:png|jpg|gif)\s+.+?"(.*?)"\s*\}\S+/,'[image: "\1"]')
-          wordlist=dob.obj.scan(/\S+/)
           if dob.obj !~/(^#{Rx[:meta]}|#{Mx[:br_eof]}|#{Mx[:br_endnotes]})/
             #if defined? dob.ocn and dob.ocn.to_s =~/\d+/
             #  paranum=dob.ocn.to_s
diff --git a/lib/sisu/v4/po4a.rb b/lib/sisu/v4/po4a.rb
index 702d3f4c..83aa8d5b 100644
--- a/lib/sisu/v4/po4a.rb
+++ b/lib/sisu/v4/po4a.rb
@@ -69,7 +69,6 @@ module SiSU_Po4a
   require_relative 'po4a_set'                           # po4a_set.rb
   include SiSU_Param
   include SiSU_Viz
-  pwd=Dir.pwd
   class Source
     @@opt_src,@@opt_trn,@@opt_src_,@@opt_trn_,@@md_src,@@md_trn=nil,nil,nil,nil,nil,nil
     def initialize(opt,fn=nil)
@@ -133,7 +132,7 @@ module SiSU_Po4a
               end
             else nil
             end
-            x=if FileTest.file?("#{srcdir}/#{opt_lang_src_fn}")
+            if FileTest.file?("#{srcdir}/#{opt_lang_src_fn}")
               @dal_array_lang_src=SiSU_DAL::Source.new(@@opt_src,opt_lang_src_fn).get # dal file drawn here
             else
               puts "no identified source document"
@@ -836,77 +835,75 @@ GSUB
         #[dob_src,dob_trn]
       end
       def markup(dob)                                     # Used for major markup instructions
-        dir=SiSU_Env::InfoEnv.new(@md.fns)
-        fix=[]
-          dob.obj=dob.obj.gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,
-              "#{Px[:po_bold_o]}\\1#{Px[:po_bold_c]}").
-            gsub(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,
-              "#{Px[:po_italics_o]}\\1#{Px[:po_italics_c]}").
-            gsub(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,
-              "#{Px[:po_underscore_o]}\\1#{Px[:po_underscore_c]}").
-            gsub(/#{Mx[:fa_subscript_o]}(.+?)#{Mx[:fa_subscript_c]}/,
-              "#{Px[:po_subscript_o]}\\1#{Px[:po_subscript_c]}").
-            gsub(/#{Mx[:fa_superscript_o]}(.+?)#{Mx[:fa_superscript_c]}/,
-              "#{Px[:po_superscript_o]}\\1#{Px[:po_superscript_c]}").
-            gsub(/#{Mx[:fa_insert_o]}(.+?)#{Mx[:fa_insert_c]}/,
-              "#{Px[:po_insert_o]}\\1#{Px[:po_insert_c]}").
-            gsub(/#{Mx[:fa_cite_o]}(.+?)#{Mx[:fa_cite_c]}/,
-              "#{Px[:po_cite_o]}\\1#{Px[:po_cite_c]}").
-            gsub(/#{Mx[:fa_strike_o]}(.+?)#{Mx[:fa_strike_c]}/,
-              "#{Px[:po_strike_o]}\\1#{Px[:po_strike_c]}").
-            gsub(/#{Mx[:fa_monospace_o]}(.+?)#{Mx[:fa_monospace_c]}/,
-              "#{Px[:po_monospace_o]}\\1#{Px[:po_monospace_c]}")
-          notes=''
-          unless dob.is==:code
-            dob.obj=dob.obj.gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}/,'\1').
-              gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'\1').
-              gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,'\1 [link: <\2>]').
-              gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}image/,'\1 [link: local image]').
-              gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,'\1')
-            #dob.obj.gsub!(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,"#{@brace_url.txt_open}\\1#{@brace_url.txt_close}")
-            notes=extract_endnotes(dob)
-            #% ### footnotes current state - extracted
-            dob.obj=dob.obj.gsub(/#{Mx[:en_a_o]}([\d]+)\s+(?:.+?)#{Mx[:en_a_c]}/,'~^').   # endnote marker marked up
-            #% ### footnotes current state - keep inline
-            #dob.obj.gsub!(/#{Mx[:en_a_o]}[\d]+\s+(.+?)#{Mx[:en_a_c]}/,'~{ \1 }~')     # inline endnote with marker marked up
-              gsub(/#{Mx[:en_b_o]}[\d]+\s+(.+?)#{Mx[:en_b_c]}/,'~[ \1 ]~').     # inline endnote with marker marked up
-              gsub(/#{Mx[:en_a_o]}([*+]+)\s+(.+?)#{Mx[:en_a_c]}/,'~{\1 \2 }~'). # inline endnote with marker marked up
-              gsub(/#{Mx[:en_b_o]}([*+]+)\s+(.+?)#{Mx[:en_b_c]}/,'~[\1 \2 ]~'). # inline endnote with marker marked up
-              gsub(/#{Mx[:gl_o]}(?:#lt|#060)#{Mx[:gl_c]}/,'<').
-              gsub(/#{Mx[:gl_o]}(?:#gt|#062)#{Mx[:gl_c]}/,'>').
-              gsub(/#{Mx[:gl_o]}#(?:038|amp)#{Mx[:gl_c]}/,'&').
-              gsub(/#{Mx[:gl_o]}#033#{Mx[:gl_c]}/,'!').
-              gsub(/#{Mx[:gl_o]}#035#{Mx[:gl_c]}/,'#').
-              gsub(/#{Mx[:gl_o]}#042#{Mx[:gl_c]}/,'*').
-              gsub(/#{Mx[:gl_o]}#045#{Mx[:gl_c]}/,'-').
-              gsub(/#{Mx[:gl_o]}#047#{Mx[:gl_c]}/,'/').
-              gsub(/#{Mx[:gl_o]}#095#{Mx[:gl_c]}/,'_').
-              gsub(/#{Mx[:gl_o]}#123#{Mx[:gl_c]}/,'{').
-              gsub(/#{Mx[:gl_o]}#125#{Mx[:gl_c]}/,'}').
-              gsub(/#{Mx[:gl_o]}#126#{Mx[:gl_c]}/,'~').
-              gsub(/#{Mx[:gl_o]}#169#{Mx[:gl_c]}/,'©')
-          end
-          dob.obj=if dob.of==:block                                   # watch
-            dob.obj.gsub(/#{Mx[:gl_o]}●#{Mx[:gl_c]}/,"* ").
-              gsub(/#{Mx[:br_line]}|#{Mx[:br_nl]}/,"\n")
-          else dob.obj.gsub(/#{Mx[:br_line]}|#{Mx[:br_nl]}/,"\n\n")
-          end
-          if dob.is==:code
-            dob.obj=dob.obj.gsub(/(^|[^}])_([<>])/m,'\1\2'). # _> _<
-              gsub(/(^|[^}])_([<>])/m,'\1\2') # _<_<
-          end
-          dob.obj=dob.obj.gsub(/#{Mx[:br_page]}\s*|#{Mx[:br_page_new]}/,'').                     # remove page breaks
+        SiSU_Env::InfoEnv.new(@md.fns)
+        dob.obj=dob.obj.gsub(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,
+            "#{Px[:po_bold_o]}\\1#{Px[:po_bold_c]}").
+          gsub(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,
+            "#{Px[:po_italics_o]}\\1#{Px[:po_italics_c]}").
+          gsub(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,
+            "#{Px[:po_underscore_o]}\\1#{Px[:po_underscore_c]}").
+          gsub(/#{Mx[:fa_subscript_o]}(.+?)#{Mx[:fa_subscript_c]}/,
+            "#{Px[:po_subscript_o]}\\1#{Px[:po_subscript_c]}").
+          gsub(/#{Mx[:fa_superscript_o]}(.+?)#{Mx[:fa_superscript_c]}/,
+            "#{Px[:po_superscript_o]}\\1#{Px[:po_superscript_c]}").
+          gsub(/#{Mx[:fa_insert_o]}(.+?)#{Mx[:fa_insert_c]}/,
+            "#{Px[:po_insert_o]}\\1#{Px[:po_insert_c]}").
+          gsub(/#{Mx[:fa_cite_o]}(.+?)#{Mx[:fa_cite_c]}/,
+            "#{Px[:po_cite_o]}\\1#{Px[:po_cite_c]}").
+          gsub(/#{Mx[:fa_strike_o]}(.+?)#{Mx[:fa_strike_c]}/,
+            "#{Px[:po_strike_o]}\\1#{Px[:po_strike_c]}").
+          gsub(/#{Mx[:fa_monospace_o]}(.+?)#{Mx[:fa_monospace_c]}/,
+            "#{Px[:po_monospace_o]}\\1#{Px[:po_monospace_c]}")
+        notes=''
+        unless dob.is==:code
+          dob.obj=dob.obj.gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}/,'\1').
             gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'\1').
-            gsub(/<a href=".+?">(.+?)<\/a>/m,'\1').
-            gsub(/#{Mx[:mk_o]}:name#(\S+?)#{Mx[:mk_c]}/,'').                       # remove name links
-            gsub(/&nbsp;|#{Mx[:nbsp]}/,' ').                                       # decide on
-            gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/,'    [ \1 ]'). #"[ #{dir.url.images_local}\/\\1 ]")
-            gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}image/,'    [ \1 ]'). #"[ #{dir.url.images_local}\/\\1 ]")
-            gsub(/(?:^|[^_\\])\{\s*\S+?\.(?:png|jpg|gif)\s+.+?"(.*?)"\s*\}\S+/,'[image: "\1"]')
+            gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,'\1 [link: <\2>]').
+            gsub(/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}image/,'\1 [link: local image]').
+            gsub(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,'\1')
+          #dob.obj.gsub!(/#{Mx[:url_o]}(\S+?)#{Mx[:url_c]}/,"#{@brace_url.txt_open}\\1#{@brace_url.txt_close}")
+          notes=extract_endnotes(dob)
+          #% ### footnotes current state - extracted
+          dob.obj=dob.obj.gsub(/#{Mx[:en_a_o]}([\d]+)\s+(?:.+?)#{Mx[:en_a_c]}/,'~^').   # endnote marker marked up
+          #% ### footnotes current state - keep inline
+          #dob.obj.gsub!(/#{Mx[:en_a_o]}[\d]+\s+(.+?)#{Mx[:en_a_c]}/,'~{ \1 }~')     # inline endnote with marker marked up
+            gsub(/#{Mx[:en_b_o]}[\d]+\s+(.+?)#{Mx[:en_b_c]}/,'~[ \1 ]~').     # inline endnote with marker marked up
+            gsub(/#{Mx[:en_a_o]}([*+]+)\s+(.+?)#{Mx[:en_a_c]}/,'~{\1 \2 }~'). # inline endnote with marker marked up
+            gsub(/#{Mx[:en_b_o]}([*+]+)\s+(.+?)#{Mx[:en_b_c]}/,'~[\1 \2 ]~'). # inline endnote with marker marked up
+            gsub(/#{Mx[:gl_o]}(?:#lt|#060)#{Mx[:gl_c]}/,'<').
+            gsub(/#{Mx[:gl_o]}(?:#gt|#062)#{Mx[:gl_c]}/,'>').
+            gsub(/#{Mx[:gl_o]}#(?:038|amp)#{Mx[:gl_c]}/,'&').
+            gsub(/#{Mx[:gl_o]}#033#{Mx[:gl_c]}/,'!').
+            gsub(/#{Mx[:gl_o]}#035#{Mx[:gl_c]}/,'#').
+            gsub(/#{Mx[:gl_o]}#042#{Mx[:gl_c]}/,'*').
+            gsub(/#{Mx[:gl_o]}#045#{Mx[:gl_c]}/,'-').
+            gsub(/#{Mx[:gl_o]}#047#{Mx[:gl_c]}/,'/').
+            gsub(/#{Mx[:gl_o]}#095#{Mx[:gl_c]}/,'_').
+            gsub(/#{Mx[:gl_o]}#123#{Mx[:gl_c]}/,'{').
+            gsub(/#{Mx[:gl_o]}#125#{Mx[:gl_c]}/,'}').
+            gsub(/#{Mx[:gl_o]}#126#{Mx[:gl_c]}/,'~').
+            gsub(/#{Mx[:gl_o]}#169#{Mx[:gl_c]}/,'©')
+        end
+        dob.obj=if dob.of==:block                                   # watch
+          dob.obj.gsub(/#{Mx[:gl_o]}●#{Mx[:gl_c]}/,"* ").
+            gsub(/#{Mx[:br_line]}|#{Mx[:br_nl]}/,"\n")
+        else dob.obj.gsub(/#{Mx[:br_line]}|#{Mx[:br_nl]}/,"\n\n")
+        end
+        if dob.is==:code
+          dob.obj=dob.obj.gsub(/(^|[^}])_([<>])/m,'\1\2'). # _> _<
+            gsub(/(^|[^}])_([<>])/m,'\1\2') # _<_<
+        end
+        dob.obj=dob.obj.gsub(/#{Mx[:br_page]}\s*|#{Mx[:br_page_new]}/,'').                     # remove page breaks
+          gsub(/#{Mx[:url_o]}_(\S+?)#{Mx[:url_c]}/,'\1').
+          gsub(/<a href=".+?">(.+?)<\/a>/m,'\1').
+          gsub(/#{Mx[:mk_o]}:name#(\S+?)#{Mx[:mk_c]}/,'').                       # remove name links
+          gsub(/&nbsp;|#{Mx[:nbsp]}/,' ').                                       # decide on
+          gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/,'    [ \1 ]'). #"[ #{dir.url.images_local}\/\\1 ]")
+          gsub(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}image/,'    [ \1 ]'). #"[ #{dir.url.images_local}\/\\1 ]")
+          gsub(/(?:^|[^_\\])\{\s*\S+?\.(?:png|jpg|gif)\s+.+?"(.*?)"\s*\}\S+/,'[image: "\1"]')
         [dob,notes]
       end
       def publish(fn,pot)
-        divider='='
         content=[]
         content << pot[:open]
         content << pot[:head]
@@ -942,7 +939,7 @@ GSUB
                 else emptyline=0
                 end
                 file_pot.puts line if emptyline < 2                     #remove extra line spaces (fix upstream)
-               end
+              end
             end
           else file_pot.puts para          #unix plaintext # /^([*=-]|\.){5}/
           end
diff --git a/lib/sisu/v4/po4a_set.rb b/lib/sisu/v4/po4a_set.rb
index 70bad3d3..306be0e9 100644
--- a/lib/sisu/v4/po4a_set.rb
+++ b/lib/sisu/v4/po4a_set.rb
@@ -180,7 +180,7 @@ WOK
       @md,@p=md,para
     end
     def extract(tag,tag_content,type,attrib)
-      dc=if dc_tag \
+      if dc_tag \
       and dc_content
         [dc_tag,dc_content,{dc_tag=>dc_content}]
       else nil
@@ -215,7 +215,7 @@ WOK
       self
     end
     def start_is_match
-      meta=case @p
+      case @p
       when /^#{Mx[:meta_o]}(title)#{Mx[:meta_c]}\s*(.+?)$/;               header($1,@md.title.full,'meta','dc') #dc 1
       when /^#{Mx[:meta_o]}(creator|author)#{Mx[:meta_c]}\s*(.+?)$/;      header('creator',$2,'meta','dc')    #dc 2
       when /^#{Mx[:meta_o]}(subject)#{Mx[:meta_c]}\s*(.+?)$/;             header($1,$2,'meta','dc')           #dc 3
@@ -266,16 +266,14 @@ WOK
       end
     end
     def dublin
-      out=if @p =~/^#{Mx[:meta_o]}\S+?#{Mx[:meta_c]}/
-        start_is_match
-      else nil
-      end
+      (@p =~/^#{Mx[:meta_o]}\S+?#{Mx[:meta_c]}/) \
+      ? start_is_match
+      : nil
     end
     def meta
-      out=if @p =~/^#{Mx[:meta_o]}\S+?#{Mx[:meta_c]}/
-        start_is_match
-      else nil
-      end
+      (@p =~/^#{Mx[:meta_o]}\S+?#{Mx[:meta_c]}/) \
+      ? start_is_match
+      : nil
     end
   end
   class ParagraphNumber
diff --git a/lib/sisu/v4/prog_text_translation.rb b/lib/sisu/v4/prog_text_translation.rb
index 01d12200..0ecb17e8 100644
--- a/lib/sisu/v4/prog_text_translation.rb
+++ b/lib/sisu/v4/prog_text_translation.rb
@@ -278,7 +278,7 @@ module SiSU_Translate
       @lang_class.language_list
     end
     def language_list
-      lang=case @trans_str
+      case @trans_str
       when /American/i;                  'American English'                    # tag depreciated, see iso 639-2
       when /English/i;                   'English'
       when /French/i;                    'français'
@@ -497,7 +497,7 @@ module SiSU_Translate
       'Document Metadata'
     end
     def language_list_translated
-      lang=case @trans_str
+      case @trans_str
       when /American/i;                  'American English'                    # tag depreciated, see iso 639-2
       when /English/i;                   'English'
       when /French/i;                    'French'
@@ -712,7 +712,7 @@ module SiSU_Translate
       'Manifeste SiSU des métadonnées du document'
     end
     def language_list_translated
-      lang=case @trans_str
+      case @trans_str
       when /American/i;                  'Anglais americain'                   # tag depreciated, see iso 639-2
       when /English/i;                   'Anglais'
       when /French/i;                    'Français'
@@ -924,7 +924,7 @@ module SiSU_Translate
       'SiSU Zusammenfassung der Metadaten'
     end
     def language_list_translated
-      lang=case @trans_str
+      case @trans_str
       when /American/i;                  'Amerikanisch-Englisch'               # tag depreciated, see iso 639-2
       when /English/i;                   'Englisch'
       when /French/i;                    'Französisch'
@@ -1136,7 +1136,7 @@ module SiSU_Translate
       'Manifiesto SiSU de metadatos de documento'
     end
     def language_list_translated
-      lang=case @trans_str
+      case @trans_str
       when /American/i;                  'Inglés Americano'                     # tag depreciated, see iso 639-2
       when /English/i;                   'Inglés'
       when /French/i;                    'Francés'
@@ -1348,7 +1348,7 @@ module SiSU_Translate
       'Inventario SiSU dei metadati'
     end
     def language_list_translated
-      lang=case @trans_str
+      case @trans_str
       when /American/i;                  'Inglese USA'                         # tag depreciated, see iso 639-2
       when /English/i;                   'Inglese'
       when /French/i;                    'Francese'
@@ -1560,7 +1560,7 @@ module SiSU_Translate
       'Dokumenttimetadatan SISU-manifesti'
     end
     def language_list_translated
-      lang=case @trans_str
+      case @trans_str
       when /American/i;                  'Amerikanenglanti'                    # tag depreciated, see iso 639-2
       when /English/i;                   'Englanti'
       when /French/i;                    'Ranska'
diff --git a/lib/sisu/v4/qrcode.rb b/lib/sisu/v4/qrcode.rb
index 9193fe08..3b8cc404 100644
--- a/lib/sisu/v4/qrcode.rb
+++ b/lib/sisu/v4/qrcode.rb
@@ -121,7 +121,6 @@ module SiSU_QRcode
         fn=@f.base_filename.manifest_txt
         mn=''
         if @md.opt.cmd =~/M/
-          pt=@f.output_path.manifest.dir
           fn=@f.base_filename.manifest_txt
           manifest=@f.write_file.manifest_txt
         end
@@ -132,26 +131,16 @@ module SiSU_QRcode
           mn += x
         end
         manifest.close if @md.opt.cmd =~/M/
-        #system(%{
-        #  cat  #{pt}/#{fn} | qrencode -s 3 -o qrcm.autonomy_markup0.png
-        #})
         cmd=SiSU_Env::SystemCall.new(mn,@f.place_file.qrcode_md.dir,@md.opt.cmd)
         cmd.qrencode
-        #system(%{
-        #  echo "#{mn}" | qrencode -s 3 -o #{@dest}/qrc_md.#{fn}.png
-        #})
       end
       def output_metadata_short
-        fn=@f.base_filename.manifest_txt
         mn=''
         @manifest[:txt_title].each do |x|
           mn += x
         end
         cmd=SiSU_Env::SystemCall.new(mn,@f.place_file.qrcode_title.dir,@md.opt.cmd)
         cmd.qrencode
-        #system(%{
-        #  echo "#{mn}" | qrencode -s 3 -o #{@dest}/qrc_title.#{fn}.png
-        #})
       end
       def summarize(id,file,pth='',rel='',url='',img='● ')
         size=(File.size("#{pth}/#{file}")/1024.00).to_s
@@ -213,22 +202,14 @@ WOK
             @m << { mu: mu, l: lng }
           end
         end
-        #url=@f.output_path.base.url
-        #@en_manifest=if @env.output_dir_structure.by_language_code?
-        #  "#{url}/en/manifest/#{@md.fnb}.html"
-        #elsif @env.output_dir_structure.by_filetype?
-        #  "#{url}/manifest/#{@md.fnb}.#{lc}.html"
-        #else
-        #  "#{url}/sisu_manifest.#{lc}.html"
-        #end
-        manifests
+        #manifests
         @m=@m.uniq
         @m
       end
       def languages(id,file)
         flv=published_manifests?
         flv.each do |l|
-          lang=SiSU_Translate::Source.new(@md,@language,l[:n]).language_list
+          SiSU_Translate::Source.new(@md,@language,l[:n]).language_list
           @manifest[:txt] << "#{l[:mu]} #{l[:l]}\n"
         end
       end
@@ -446,7 +427,6 @@ WOK
       end
       def source_tests
         if @md.fns =~/\.ssm\.sst$/                                                  #% decide whether to extract and include requested/required documents
-          req=@md.fns
           if FileTest.file?(@f.place_file.src.dir)==true
             pth=@f.output_path.src.dir
             rel=@f.output_path.src.rel
@@ -709,8 +689,6 @@ WOK
       end
       def check_output(data)
         begin
-          id,file='',''
-          vz=SiSU_Viz::Defaults.new
           @f=SiSU_Env::FileOp.new(@md) #.base_filename
           url=@f.output_path.base.url
           @en_manifest=if @env.output_dir_structure.by_language_code?
diff --git a/lib/sisu/v4/remote.rb b/lib/sisu/v4/remote.rb
index 3906e966..2a158e4b 100644
--- a/lib/sisu/v4/remote.rb
+++ b/lib/sisu/v4/remote.rb
@@ -62,7 +62,6 @@
 module SiSU_Remote
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
-  pwd=Dir.pwd
   class Put
     def initialize(opt)
       @opt=opt
@@ -122,7 +121,7 @@ module SiSU_Remote
         threads << Thread.new(requested_page) do |url|
           open(url) do |f|
             raise "#{url} not found" unless f
-            base_uri,fnb,instr=re_fnb.match(url)[1..3] if re_fnb
+            base_uri,fnb=re_fnb.match(url)[1..2] if re_fnb
             imagedir=base_uri + '/_sisu/image' #check on
             downloaded_file=File.new("#{fnb}.-sst",'w+')
             image_download_url=SiSU_Assemble::RemoteImage.new.image(imagedir)
@@ -191,7 +190,7 @@ module SiSU_Remote
       end
       def dir_stub
         re_p_stub=/.+?([^\/]+)$/
-        pod_stub= re_p_stub.match(path).captures.join if path
+        re_p_stub.match(path).captures.join if path
       end
       def name_source
         @pod
diff --git a/lib/sisu/v4/share_src_kdissert.rb b/lib/sisu/v4/share_src_kdissert.rb
index 8e420578..5b3365ff 100644
--- a/lib/sisu/v4/share_src_kdissert.rb
+++ b/lib/sisu/v4/share_src_kdissert.rb
@@ -62,7 +62,6 @@
 module SiSU_KdiSource
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
-  pwd=Dir.pwd
   class Source
     require 'fileutils'
       include FileUtils
diff --git a/lib/sisu/v4/shared_html_lite.rb b/lib/sisu/v4/shared_html_lite.rb
index 2a2697b9..def7a84d 100644
--- a/lib/sisu/v4/shared_html_lite.rb
+++ b/lib/sisu/v4/shared_html_lite.rb
@@ -251,7 +251,7 @@ GSUB
     def ocn
       %{<label class="ocn">#{@ocn}</label>} << "\n"
     end
-   def html_table # get rid of use html_table
+    def html_table # get rid of use html_table
       @new_content=[]
       @txt.split(/\n/).each do |parablock|
         m=parablock[/<!f(.+?)!>/,1]
diff --git a/lib/sisu/v4/shared_markup_alt.rb b/lib/sisu/v4/shared_markup_alt.rb
index 936ec06a..27d968ca 100644
--- a/lib/sisu/v4/shared_markup_alt.rb
+++ b/lib/sisu/v4/shared_markup_alt.rb
@@ -192,7 +192,7 @@ module SiSU_TextRepresentation
           @s=@s
         end
       else
-        p __FILE__ +':'+ __LINE__.to_s
+        p __FILE__ << ':' << __LINE__.to_s
       end
       @s
     end
@@ -227,7 +227,6 @@ module SiSU_TextRepresentation
         SiSU_TextRepresentation::Alter.new(@s).strip_clean_of_markup
       end
       def dgst
-        en_dgst,img_dgst={},{}
         txt_dgst=digest(txt)
         { txt: txt, dgst_txt: txt_dgst }
       end
@@ -253,7 +252,6 @@ module SiSU_TextRepresentation
       def images(imgs)
         sys=SiSU_Env::SystemCall.new
         line_image=[]
-        img_dgst={}
         if imgs and imgs.length > 0
            @image_name,@image_dgst,@img=[],[],[]
            imgs.each do |i|
@@ -268,7 +266,6 @@ module SiSU_TextRepresentation
                nil
              end
              img_type = /\S+\.(png|jpg|gif)/.match(i)[1]
-             not_found_msg='image not found'
              if image_source
                para_image = image_source + '/' + i
                image_name = i
@@ -298,7 +295,6 @@ module SiSU_TextRepresentation
         if @t_o.of !=:comment \
         && @t_o.of !=:structure \
         && @t_o.of !=:layout
-          en_dgst,img_dgst={},{}
           txt_stripped_dgst=digest(stripped_clean(@t_o))
           txt_markup_reverted_dgst=digest(markup_reverted(@t_o))
           endnotes_dgst=[]
diff --git a/lib/sisu/v4/shared_metadata.rb b/lib/sisu/v4/shared_metadata.rb
index 80686a03..f14ffb0a 100644
--- a/lib/sisu/v4/shared_metadata.rb
+++ b/lib/sisu/v4/shared_metadata.rb
@@ -67,9 +67,7 @@ module SiSU_Metadata
       @tag,@inf,@class,@attrib=nil
     end
     def metadata_base
-      meta,tag=[],[]
-      dir=SiSU_Env::InfoEnv.new(@md.fns)
-      base_html="#{dir.url.root}/#{@md.fnb}"
+      meta=[]
       l=SiSU_Env::StandardiseLanguage.new(@md.opt.lng).language
       language=l[:n]
       tr=SiSU_Translate::Source.new(@md,language)
@@ -904,8 +902,6 @@ WOK
     end
     def metadata_tex
       meta=[]
-      dir=SiSU_Env::InfoEnv.new(@md.fns)
-      base_html="#{dir.url.root}/#{@md.fnb}"
       l=SiSU_Env::StandardiseLanguage.new(@md.opt.lng).language
       language=l[:n]
       tr=SiSU_Translate::Source.new(@md,language)
diff --git a/lib/sisu/v4/shared_sisupod_source.rb b/lib/sisu/v4/shared_sisupod_source.rb
index 0ec739bb..b53c9eb2 100644
--- a/lib/sisu/v4/shared_sisupod_source.rb
+++ b/lib/sisu/v4/shared_sisupod_source.rb
@@ -66,7 +66,6 @@ module SiSU_Source
     require_relative 'particulars'                      # particulars.rb
     def initialize(opt,build=nil,place=nil)
       @opt=opt
-      m=/.+\/(?:src\/)?(\S+)/im
       @date=SiSU_Env::InfoDate.new.dt
       @env=SiSU_Env::InfoEnv.new(opt.fns)
       @ver=SiSU_Env::InfoVersion.instance.get_version
diff --git a/lib/sisu/v4/shared_txt.rb b/lib/sisu/v4/shared_txt.rb
index 8640a3e8..11c7a4ee 100644
--- a/lib/sisu/v4/shared_txt.rb
+++ b/lib/sisu/v4/shared_txt.rb
@@ -132,7 +132,7 @@ module SiSU_TextUtils
       @md,@p=md,para
     end
     def extract(tag,tag_content,type,attrib)
-      dc=if dc_tag \
+      if dc_tag \
       and dc_content
         [dc_tag,dc_content,{dc_tag=>dc_content}]
       else nil
@@ -167,7 +167,7 @@ module SiSU_TextUtils
       self
     end
     def start_is_match
-      meta=case @p
+      case @p
       when /^#{Mx[:meta_o]}(title)#{Mx[:meta_c]}\s*(.+?)$/;               header($1,@md.title.full,'meta','dc') #dc 1
       when /^#{Mx[:meta_o]}(creator|author)#{Mx[:meta_c]}\s*(.+?)$/;      header('creator',$2,'meta','dc')    #dc 2
       when /^#{Mx[:meta_o]}(subject)#{Mx[:meta_c]}\s*(.+?)$/;             header($1,$2,'meta','dc')           #dc 3
@@ -218,13 +218,13 @@ module SiSU_TextUtils
       end
     end
     def dublin
-      out=if @p =~/^#{Mx[:meta_o]}\S+?#{Mx[:meta_c]}/
+      if @p =~/^#{Mx[:meta_o]}\S+?#{Mx[:meta_c]}/
         start_is_match
       else nil
       end
     end
     def meta
-      out=if @p =~/^#{Mx[:meta_o]}\S+?#{Mx[:meta_c]}/
+      if @p =~/^#{Mx[:meta_o]}\S+?#{Mx[:meta_c]}/
         start_is_match
       else nil
       end
diff --git a/lib/sisu/v4/shared_xml.rb b/lib/sisu/v4/shared_xml.rb
index b175408d..390689c7 100644
--- a/lib/sisu/v4/shared_xml.rb
+++ b/lib/sisu/v4/shared_xml.rb
@@ -654,12 +654,11 @@ module SiSU_XML_Tags #Format
       @vz=SiSU_Viz::Defaults.new
     end
     def meta_content_clean(content='')
-      content
-      unless content.nil?
+      content=if not content.nil?
         content=content.tr('"',"'")
         content=SiSU_XML_Munge::Trans.new(@md).char_enc.utf8(content)
+      else content
       end
-      content
     end
     def rdfseg #segHead
       rdftoc
@@ -693,7 +692,7 @@ WOK
      * SiSU http://www.jus.uio.no/sisu
 -->
 WOK
-     end
+      end
     end
     def comment_xml_sax
       desc='SiSU XML, SAX type representation'
diff --git a/lib/sisu/v4/sitemaps.rb b/lib/sisu/v4/sitemaps.rb
index ce53896b..f3521dc9 100644
--- a/lib/sisu/v4/sitemaps.rb
+++ b/lib/sisu/v4/sitemaps.rb
@@ -127,7 +127,7 @@ module SiSU_Sitemaps
     def sitemap_index
       sitemap_files=Dir.glob("#{@env.path.sitemaps}/sitemap_*.xml")
       sitemap_idx=[]
-      sitemap_idx <<<<WOK
+      sitemap_idx << <<WOK
 <?xml version="1.0" encoding="UTF-8"?>
 <sitemapindex xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemaps/0.9
@@ -137,19 +137,19 @@ WOK
       sitemap_files.each do |s|
         f=s.gsub(/.+?\/sitemap_([^\/]+?)\.xml$/,'\1')
         @trans.char_enc.utf8(f) if @sys.locale =~/utf-?8/i #% utf8
-sitemap_idx <<<<WOK
+sitemap_idx << <<WOK
   <sitemap>
     <loc>#{@env.path.url.remote}/#{f}/sitemap.xml</loc>
   </sitemap>
 WOK
       end
-      sitemap_idx <<<<WOK
+      sitemap_idx << <<WOK
 </sitemapindex>
 WOK
-      idx=sitemap_idx.join
+      sitemap_idx.join
     end
     def sitemap
-      map=if defined? @md.date.modified \
+      if defined? @md.date.modified \
       and @md.date.modified=~/\d{4}-\d{2}-\d{2}/
         sitemap_date_modified
       else sitemap_no_date
diff --git a/lib/sisu/v4/spell.rb b/lib/sisu/v4/spell.rb
index 7a41d556..df0f837e 100644
--- a/lib/sisu/v4/spell.rb
+++ b/lib/sisu/v4/spell.rb
@@ -77,7 +77,7 @@ module SiSU_SpellUtility
           gsub(/(&nbsp;|#{Mx[:nbsp]})/i,' ').
           gsub(/<\/?(table|tr|td|b|p|href).*?>/i,' ').
           gsub(/(<==.+|<:\S+>|<!.+?!>|^@\S+?:.+|\{\{\{|~)/,' ').
-          gsub(/(["|<>)(\n'`'.;&_-]|\=)/,' ').
+          gsub(/(["|<>)(\n'`.;&_-]|\=)/,' ').
           gsub(/\b(altExternal|
             target|externalimg|
             srcimagebext|
diff --git a/lib/sisu/v4/sst_do_inline_footnotes.rb b/lib/sisu/v4/sst_do_inline_footnotes.rb
index d2ce6cc6..d7b40cd7 100644
--- a/lib/sisu/v4/sst_do_inline_footnotes.rb
+++ b/lib/sisu/v4/sst_do_inline_footnotes.rb
@@ -92,7 +92,6 @@ module SiSU_ConvertFootnotes
     end
     def read                                                                     #creates dal
       begin
-        dal=[]
         @@dal_array=[]
         @@fns=@opt.fns
         create_dal
@@ -158,7 +157,7 @@ module SiSU_ConvertFootnotes
     def initialize(md,data)
       @md,@data=md,data
       @my_make=SiSU_Env::CreateFile.new(@md.fns)
-      dir=SiSU_Env::InfoEnv.new(@md.fns)
+      SiSU_Env::InfoEnv.new(@md.fns)
       @hard="#{Dir.pwd}/#{@md.fns}.fn"
     end
     def hard_output
@@ -191,7 +190,7 @@ module SiSU_ConvertFootnotes
       reset
       data=@data
       @metafile="#{@env.processing_path.dal}/#{@md.fns}.meta"
-      my_make_source_file=SiSU_Env::CreateFile.new(@md.fns)
+      SiSU_Env::CreateFile.new(@md.fns)
       data=data.join.split("\n\n")
       data_new=[]
       data.each do |x|
@@ -417,8 +416,7 @@ module SiSU_ConvertFootnotes
     def endnotes                                                                         #% endnote work zone
       data=@data
       @tuned_file=[]
-      endnote_no,endnote_ref=1,1
-
+      endnote_ref=1
       data.each do |para|
         case para                                                                               # manually numbered endnotes <!e(\d)!> <!e_(\d)!> -->
         when /~\{\s+.+?\}~/                                                                               # auto-numbered endnotes <!e!> <!e_!> -->
diff --git a/lib/sisu/v4/sst_to_s_xml_sax.rb b/lib/sisu/v4/sst_to_s_xml_sax.rb
index 08c9e979..5b8febf0 100644
--- a/lib/sisu/v4/sst_to_s_xml_sax.rb
+++ b/lib/sisu/v4/sst_to_s_xml_sax.rb
@@ -88,12 +88,6 @@ module SiSU_SimpleXML_ModelSax
       begin
         @md=@particulars.md #bug, relies on info persistence, assumes -m has previously been run
         @env=@particulars.env
-        path=@env.path.output_tell
-        loc=@env.url.output_tell
-        tool=if @opt.cmd =~/[MV]/; "#{Dir.pwd}/#{@md.fn[:sxs]}\n\t#{@env.program.xml_viewer} #{path}/#{@md.fnb}/#{@md.fn[:sxs]}"
-        elsif @opt.cmd =~/v/; "#{@env.program.web_browser} #{Dir.pwd}/#{@md.fn[:sxs]}"
-        else ''
-        end
         SiSU_Screen::Ansi.new(@opt.cmd,'invert','XML SAX',"#{@md.fns} -> #{@md.fn[:sxs]}").colorize unless @opt.cmd =~/q/
         SiSU_Screen::Ansi.new(@opt.cmd,@opt.fns,"#{Dir.pwd}/#{@md.fn[:sxs]}").flow if @opt.cmd =~/[MV]/
         unless @@fns==@opt.fns
@@ -199,8 +193,6 @@ WOK
       end
       def xml_structure(para='',lv='',hname='') #extracted endnotes
         lv=lv.to_i
-        n=lv - 1
-        n3=lv + 2
         lv=nil if lv==0
         embedded_endnotes(para)
         if para[@regx]
@@ -271,7 +263,6 @@ WOK
       end
       def markup
         data=[]
-        dir=SiSU_Env::InfoEnv.new(@md.fns)
         xml_sc(@md)
         @endnotes,@level,@cont,@copen,@xml_contents_close=[],[],[],[],[]
         @rcdc=false
@@ -305,7 +296,7 @@ WOK
           if para !~/(^@\S+?:|^\s*$|<ENDNOTES>|<EOF>)/
             @sto=SiSU_text_parts::SplitTextObject.new(@md,para).lev_segname_para
             unless @rcdc
-              format_scroll=SiSU_XML_Format::FormatScroll.new(@md,@sto.text) if @sto.format =~/i[1-9]|ordinary/
+              SiSU_XML_Format::FormatScroll.new(@md,@sto.text) if @sto.format =~/i[1-9]|ordinary/
               case @sto.format
               when /^(1):(\S*)/
                 xml_clean(para)
@@ -407,7 +398,6 @@ WOK
       end
       def publish
         content=[]
-        data=@data
         content << @@xml[:open] << @@xml[:head] << @@xml[:body] << @@xml[:metadata]
         content << @@xml[:owner_details] if @md.stmp =~/\w\w/
         content << @@xml[:tail] << @@xml[:close]
diff --git a/lib/sisu/v4/sysenv.rb b/lib/sisu/v4/sysenv.rb
index 8884b0fb..5f764f9c 100644
--- a/lib/sisu/v4/sysenv.rb
+++ b/lib/sisu/v4/sysenv.rb
@@ -113,18 +113,13 @@ module SiSU_Env
     else #error
       tmp_processing=tmp_processing_individual="/tmp/#{prcss_dir_stub}"
     end
-    tmp_processing_home=if @@home \
-    and File.writable?("#{@@home}/.")
-      "#{@@home}/#{prcss_dir_stub}"
-    else prcss_dir_stub
-    end
     processing_pth=tmp_processing_individual
     processing_dir=prcss_dir
     processing_git="#{Dir.pwd}/#{Gt[:grotto]}"
     user=ENV['USER']
     port_pgsql=if defined? ENV['PGPORT'] \
     and not (ENV['PGPORT'].nil? \
-    or ENV['PGPORT'].empty?) \
+    || ENV['PGPORT'].empty?) \
     and ENV['PGPORT']=~/^\d+$/
       ENV['PGPORT']
     else '5432'
@@ -219,7 +214,6 @@ module SiSU_Env
     @@default_dir=DEFAULT_DIR
     m=/.+\/(?:src\/)?(\S+)/m # m=/.+?\/(?:src\/)?([^\/]+)$/im # m=/.+\/(\S+)/m
     @@pwd=@pwd=SiSU_Utils::Path.new.base_markup
-    stub_pwd=@pwd[m,1]
     attr_accessor :user,:home,:hostname,:pwd,:host,:arch,:rbver,:dir_arch,:dir_sitearch,:dir_bin,:locale,:webserv_path,:webserv_host_cgi,:webserv_port_cgi,:default_dir,:rc_path,:ad_path
     def initialize
       @user,@home,@hostname,@pwd,@sisu_etc,@host,@arch,@rbver,@dir_arch,@dir_sitearch,@dir_bin,@locale,@default_dir=\
@@ -239,7 +233,6 @@ module SiSU_Env
     end
     def prog
       load_prog=false
-      pp=''
       $:.each do |reqpath|
         if FileTest.exist?("#{reqpath}/#{@prog}.rb")
           load_prog=true
@@ -560,7 +553,6 @@ module SiSU_Env
       @fn
     end
     def published_manifests?(output_base)
-      ob=output_base
       @fn={}
       @m=[]
       unless (@fns.nil? \
@@ -794,14 +786,14 @@ module SiSU_Env
     end
     def imagemagick                                                            #imagemagick is a image manipulation program
       program='identify'
-      program_ref="\n\t\tsee <http://www.imagemagick.org/>"
+      #program_ref="\n\t\tsee <http://www.imagemagick.org/>"
       found=(program_found?(program)) ? true : false
       #STDERR.puts "\t*WARN* #{program} is not installed #{program_ref}" unless found
       found
     end
     def graphicksmagick                                                        #graphicsmagick is a image manipulation program
       program='gm'
-      program_ref="\n\t\tsee <http://www.graphicsmagick.org/>"
+      #program_ref="\n\t\tsee <http://www.graphicsmagick.org/>"
       found=(program_found?(program)) ? true : false
       #STDERR.puts "\t*WARN* #{program} is not installed #{program_ref}" unless found
       found
@@ -864,12 +856,8 @@ module SiSU_Env
       : (STDERR.puts "\t*WARN* #{program} is not installed #{program_ref}")
     end
     def scp
-      program='scp'
       puts "scp -Cr #{@input} #{@output}" if @cmd =~/[vVM]/
       puts "scp disabled"
-      #(program_found?(program)) \
-      #? system("scp -Cr #{@input} #{@output}") \
-      #: (STDERR.puts "\t*WARN* #{program} not found" )
     end
     def rsync(action='',chdir=nil)
       program='rsync'
@@ -892,7 +880,7 @@ module SiSU_Env
           dir_change=Dir.chdir(chdir)
           dir_return=Dir.pwd
         end
-        dir_change
+        dir_change #check
         system("
           #{rsync_cmd} #{msg} #{amp}
         ")
@@ -922,7 +910,7 @@ module SiSU_Env
       @@lang_info ||=@lang_info.language.list
     end
     def lang(l='')                              # from i18n
-      x=if l =~/^#{@r}$/
+      if l =~/^#{@r}$/
         @lang_info.language.list[l]
       elsif @language =~/^#{@r}$/
         @lang_info.language.list[@language]
@@ -1294,14 +1282,14 @@ module SiSU_Env
       : false
     end
     def html_minitoc?
-      flag=if defined? @rc['html']['minitoc'] \
+      if defined? @rc['html']['minitoc'] \
       and @rc['html']['minitoc'].is_a?(String)
         @rc['html']['minitoc']
       else false
       end
     end
     def manifest_minitoc?
-      flag=if defined? @rc['manifest']['minitoc'] \
+      if defined? @rc['manifest']['minitoc'] \
       and @rc['manifest']['minitoc'].is_a?(String)
         @rc['manifest']['minitoc']
       else false
@@ -1358,7 +1346,7 @@ module SiSU_Env
         end
       end
       def links_to_manifest?
-        flag=if (defined? @rc['omit']['links_to_manifest'] \
+        if (defined? @rc['omit']['links_to_manifest'] \
         and not @rc['omit']['links_to_manifest'].nil?) \
         or (listed?('links_to_manifest') \
         ||  listed?('manifest_links'))
@@ -1377,7 +1365,7 @@ module SiSU_Env
         end
       end
       def minitoc?
-        flag=if (defined? @rc['omit']['minitoc'] \
+        if (defined? @rc['omit']['minitoc'] \
         and not @rc['omit']['minitoc'].nil?) \
         or (listed?('minitoc'))
           :off
@@ -1386,7 +1374,7 @@ module SiSU_Env
         end
       end
       def manifest_minitoc?
-        flag=if (defined? @rc['omit']['manifest_minitoc'] \
+        if (defined? @rc['omit']['manifest_minitoc'] \
         and not @rc['omit']['manifest_minitoc'].nil?) \
         or listed?('manifest_minitoc')
           :off
@@ -1395,7 +1383,7 @@ module SiSU_Env
         end
       end
       def html_minitoc?
-        flag=if (defined? @rc['omit']['html_minitoc'] \
+        if (defined? @rc['omit']['html_minitoc'] \
         and not @rc['omit']['html_minitoc'].nil?) \
         or (listed?('html_minitoc') \
         || listed?('minitoc'))
@@ -1405,7 +1393,7 @@ module SiSU_Env
         end
       end
       def html_navigation?
-        flag=if (defined? @rc['omit']['html_navigation'] \
+        if (defined? @rc['omit']['html_navigation'] \
         and not @rc['omit']['html_navigation'].nil?) \
         or listed?('html_navigation')
           :off
@@ -1414,7 +1402,7 @@ module SiSU_Env
         end
       end
       def html_navigation_bar?
-        flag=if (defined? @rc['omit']['html_navigation_bar'] \
+        if (defined? @rc['omit']['html_navigation_bar'] \
         and not @rc['omit']['html_navigation_bar'].nil?) \
         or listed?('html_navigation_bar')
           :off
@@ -1423,7 +1411,7 @@ module SiSU_Env
         end
       end
       def segsubtoc?
-        flag=if (defined? @rc['omit']['segsubtoc'] \
+        if (defined? @rc['omit']['segsubtoc'] \
         and not @rc['omit']['segsubtoc'].nil?) \
         or listed?('segsubtoc')
           :off
@@ -1432,7 +1420,7 @@ module SiSU_Env
         end
       end
       def html_right_pane?
-        flag=if (defined? @rc['omit']['html_right_pane'] \
+        if (defined? @rc['omit']['html_right_pane'] \
         and not @rc['omit']['html_right_pane'].nil?) \
         or listed?('html_right_pane')
           :off
@@ -1441,7 +1429,7 @@ module SiSU_Env
         end
       end
       def html_top_band?
-        flag=if (defined? @rc['omit']['html_top_band'] \
+        if (defined? @rc['omit']['html_top_band'] \
         and not @rc['omit']['html_top_band'].nil?) \
         or listed?('html_top_band')
           :off
@@ -1450,7 +1438,7 @@ module SiSU_Env
         end
       end
       def search_form? #decide later, as is configured here (in sisurc) and can be turned off on command line
-        flag=if (defined? @rc['omit']['search_form'] \
+        if (defined? @rc['omit']['search_form'] \
         and not @rc['omit']['search_form'].nil?) \
         or listed?('search_form')
           :off
@@ -1459,7 +1447,7 @@ module SiSU_Env
         end
       end
       def html_search_form? #decide later, as is configured here (in sisurc) and can be turned off on command line
-        flag=if (defined? @rc['omit']['html_search_form'] \
+        if (defined? @rc['omit']['html_search_form'] \
         and not @rc['omit']['html_search_form'].nil?) \
         or listed?('html_search_form')
           :off
@@ -1654,7 +1642,7 @@ WOK
         end
       end
       def search_action #check
-        action=if search?
+        if search?
         else ''
         end
       end
@@ -1759,7 +1747,7 @@ WOK
         end
       end
       def search_action #check
-        action=if search?
+        if search?
         else ''
         end
       end
@@ -1767,7 +1755,7 @@ WOK
     end
     def source_file_path
       file=@fns.gsub(/\.ssm(?:\.sst)?/,'.ssm.sst')
-      pth=unless file =~/\.ssm\.sst$/; "#{Dir.pwd}"
+      unless file =~/\.ssm\.sst$/; "#{Dir.pwd}"
       else "#{processing_path.composite_file}"
       end
     end
@@ -1845,7 +1833,7 @@ WOK
       self
     end
     def read_source_file_array(fns)
-      fns_array=(fns !~/\.ssm.sst$/) \
+      (fns !~/\.ssm.sst$/) \
       ? (IO.readlines(fns, mode: 'r:utf-8', cr_newline: true))
       : (IO.readlines("#{processing_path.composite_file}/#{fns}", mode: 'r:utf-8', cr_newline: true))
     end
@@ -1853,12 +1841,12 @@ WOK
       read_source_file_array(fns)
     end
     def read_source_file_string(fns)
-      fns_str=(fns !~/\.ssm.sst$/) \
+      (fns !~/\.ssm.sst$/) \
       ? (IO.read(fns, mode: 'r:utf-8', cr_newline: true))
       : (IO.read("#{processing_path.composite_file}/#{fns}", mode: 'r:utf-8', cr_newline: true))
     end
     def source_file_processing_array(fns)
-      sf=read_source_file_string(fns).split(/\s*\n\s*\n/m)
+      read_source_file_string(fns).split(/\s*\n\s*\n/m)
     end
     def path                                                                     #dir
       def home
@@ -2030,7 +2018,7 @@ WOK
         url.webserv_map_pwd
       end
       def image_source                                                           #image repository source directory
-        image_path=if defined? @rc['image']['path'] \
+        if defined? @rc['image']['path'] \
         and defined? @rc['image']['public']
           pth="#{@rc['image']['path']}"
           "#{pth}/#{@rc['image']['public']}"
@@ -2042,7 +2030,7 @@ WOK
         "#{share}/image"
       end
       def image_source_include                                                       #image repository source directory
-        image_path=if defined? @rc['image']['path'] \
+        if defined? @rc['image']['path'] \
         and defined? @rc['image']['public'] \
         and FileTest.directory?("#{@rc['image']['path']}/#{@rc['image']['public']}")==true
           "#{@rc['image']['path']}/#{@rc['image']['public']}"
@@ -2143,7 +2131,6 @@ WOK
             FileUtils::mkdir_p(processing_path_usr) unless FileTest.directory?(processing_path_usr)
             File.chmod(0700,processing_path_usr)
           end
-          fn_base_bundle=paths[:fnb]
           sisupod_processing_path=paths[:sisupod]
           FileUtils::mkdir_p(sisupod_processing_path) unless FileTest.directory?(sisupod_processing_path)
           sisupod_processing_path_lng=if defined? @opt.lng
@@ -2210,7 +2197,7 @@ WOK
       def git
         pth=if defined? @rc['git']['dir'] \
         and @rc['git']['dir'].is_a?(String)
-          x=(@rc['git']['dir'] =~/^(?:~|home)$/) \
+          (@rc['git']['dir'] =~/^(?:~|home)$/) \
           ? home + '/' + Gt[:git]
           : @rc['git']['dir'] + '/' + Gt[:git]
         else defaults[:processing_git]
@@ -2256,7 +2243,6 @@ WOK
         FileUtils::mkdir_p("#{processing_path.epub}/META-INF") unless FileTest.directory?("#{processing_path.epub}/META-INF")
         FileUtils::mkdir_p("#{processing_path.epub}/#{Ep[:d_oebps]}/image") unless FileTest.directory?("#{processing_path.epub}/#{Ep[:d_oebps]}/image")
         FileUtils::mkdir_p("#{processing_path.epub}/#{Ep[:d_oebps]}/css") unless FileTest.directory?("#{processing_path.epub}/#{Ep[:d_oebps]}/css")
-        images=%W[bullet_09.png arrow_next_red.png arrow_prev_red.png arrow_up_red.png]
         processing_path.epub
       end
       def epub_cp_images(md)
@@ -2494,13 +2480,13 @@ WOK
       end
       def cgi_sample_search_form_name(opt=nil)
         if opt.mod.inspect =~/--(?:cgi-)?search-form-name[=-]["']?(\S+?\.cgi)/
-          m=$1
-        elsif not (opt.mod.inspect =~/--db[=-]["']?sqlite/) \
+          $1
+        elsif not opt.mod.inspect =~/--db[=-]["']?sqlite/ \
         and defined? @rc['search'] \
         and defined? @rc['search']['sisu'] \
         and defined? @rc['search']['sisu']['action'] \
         and @rc['search']['sisu']['action'] =~/https?:\/\/\S+?\.cgi/
-          x=/(?:https?:\/\/\S+?)\/([^\/]+?\.cgi)$/.match(@rc['search']['sisu']['action'])[1]
+          /(?:https?:\/\/\S+?)\/([^\/]+?\.cgi)$/.match(@rc['search']['sisu']['action'])[1]
         else
           (opt.mod.inspect =~/--db[=-]["']?sqlite/) \
           ? 'sisu_sqlite.cgi' \
@@ -2521,7 +2507,7 @@ WOK
           @rc['show_output_on']
         else 'filesystem'
         end
-        output=case output_type
+        case output_type
         when /^filesystem(?:_url)?/;       url.dir_url
         when /^remote(?:_webserv)?/;       url.remote
         when /^(?:webserv|local_webserv)/; url.local
@@ -2843,7 +2829,7 @@ WOK
       end
       if f_pod \
       && FileTest.file?(f_pod)
-        tree=(SiSU_Env::SystemCall.new.program_found?('tree')) \
+        (SiSU_Env::SystemCall.new.program_found?('tree')) \
         ? "tree #{processing_path.processing}/#{Gt[:sisupod]}"
         : ''
         if FileTest.directory?(processing_path.processing)
@@ -2858,7 +2844,6 @@ WOK
       sisupod_processing_path
     end
     def sisupod_gen_v2(fns_pod)
-      pwd=Dir.pwd
       sisupod_processing_path="#{processing_path.processing}/#{Gt[:sisupod]}"
       if FileTest.directory?(sisupod_processing_path) \
       or FileTest.file?(sisupod_processing_path)
@@ -3338,7 +3323,7 @@ WOK
             #local_gen_image_external="#{@env.path.webserv}/#{@env.path.stub_pwd}/_sisu/image_external"
             remote_gen="#{remote_conn[:name]}/#{@env.path.stub_pwd}/."
             remote_rel=remote_conn[:name] + '/' + f.output_path.stub.rcp
-            src_txt=@opt.fnc
+            @opt.fnc
             if (local_gen =~/\S/ \
             and local_gen !~/\/\//) \
             and (remote_gen =~/\S/ \
@@ -3346,7 +3331,7 @@ WOK
             and @@flag_remote==true \
             and @opt.cmd !~/U/
 #             SiSU_Env::SystemCall.new("#{local_src}/#{src_txt}",remote_src,@opt.cmd).rsync
-              delete_extra_files='--delete' # '--delete-after'
+              #delete_extra_files='--delete' # '--delete-after'
               inp=[]
               if (@opt.act[:html][:set]==:on \
               || @opt.cmd =~/^-[mqvVM]*R[mqvVM]*$/) \
@@ -3438,8 +3423,8 @@ WOK
                 inp.join(' ')
               else ''
               end
-              local_css,images,images_external,images_system='','','',''
-              images_gen=images=images_skin=images_system=local_css=''
+              local_css,images,images_system='','',''
+              images=images_skin=images_system=local_css=''
               if @opt.cmd =~/[hwbxX]/ \
               && (defined? @md.ec[:image]) \
               && (@md.ec[:image].length > 0)
@@ -3509,7 +3494,6 @@ WOK
         ldest='_sisu/*'
         l_rel="#{@env.path.webserv}/#{@env.path.stub_pwd}"
         image_sys="#{@env.path.webserv}/_sisu/image_sys"
-        images="#{@env.path.webserv}/_sisu/image"
         self.remote_host_base.each do |remote_conn|
           remote="#{remote_conn[:name]}/#{@env.path.stub_pwd}"
           remote_conf="#{remote_conn[:name]}/_sisu"
@@ -3628,7 +3612,7 @@ WOK
     end
     def basefilename #Remove if possible
       m=/(.+?)\.(?:(?:-|ssm\.)?sst|ssm)$/m
-      fnb=@fns[m,1]
+      @fns[m,1]
     end
     def make_file(path,filename)
       (File.writable?("#{path}/.")) \
@@ -4068,9 +4052,9 @@ WOK
     end
     def psql
       def user(opt=nil)
-        x=if opt \
+        if opt \
         and opt.mod.inspect =~/--db-user[=-]["']?(\S+)["']+/
-          m=$1
+          $1
         elsif opt \
         and opt.mod =~/--webserv[=-]webrick/
           @env.user
@@ -4280,7 +4264,6 @@ WOK
       self
     end
     def mkdir
-      txt_path="#{output_path.base.dir}/#{@md.fnb}"
       def output
         def base
           FileUtils::mkdir_p(output_path.base.dir) unless FileTest.directory?(output_path.base.dir)
@@ -4300,12 +4283,12 @@ WOK
       path="#{output_path.base.dir}/#{@md.fnb}"
       make_path(path)
       filename=@fno
-      file=make_file(path,filename)
+      make_file(path,filename)
     end
     def mkfile_pwd
       path=Dir.pwd
       filename=@fno
-      file=make_file(path,filename)
+      make_file(path,filename)
     end
     def write_file
       def txt
@@ -4325,7 +4308,6 @@ WOK
           || (output_dir_structure.dump?)) \
         ? "#{output_path.html.dir}"
         : "#{output_path.html.dir}/#{@md.fnb}"
-        fn=base_filename.html_seg_index
         make_path(pth)
         p_fn=place_file.html_seg_index.dir
         @@filename_html_index=File.new(p_fn,'w+')
@@ -4336,7 +4318,6 @@ WOK
           || (output_dir_structure.redirect?)) \
         ? "#{output_path.html.dir}"
         : "#{output_path.html.dir}/#{@md.fnb}"
-        fn=base_filename.html_segtoc
         make_path(pth)
         p_fn=place_file.html_segtoc.dir
         @@filename_html_index=File.new(p_fn,'w+')
@@ -4345,43 +4326,43 @@ WOK
         path=output_path.xhtml.dir
         make_path(path)
         fn=base_filename.xhtml
-        file=make_file(path,fn)
+        make_file(path,fn)
       end
       def xml_sax
         path=output_path.xml.dir
         make_path(path)
         fn=base_filename.xml_sax
-        file=make_file(path,fn)
+        make_file(path,fn)
       end
       def xml_dom
         path=output_path.xml.dir
         make_path(path)
         fn=base_filename.xml_dom
-        file=make_file(path,fn)
+        make_file(path,fn)
       end
       def manpage
         path=output_path.manpage.dir
         make_path(path)
         fn=base_filename.manpage
-        file=make_file(path,fn)
+        make_file(path,fn)
       end
       def texinfo
         path=output_path.texinfo.dir
         make_path(path)
         fn=base_filename.texinfo
-        file=make_file(path,fn)
+        make_file(path,fn)
       end
       def info
         path=output_path.texinfo.dir
         make_path(path)
         fn=base_filename.info
-        file=make_file(path,fn)
+        make_file(path,fn)
       end
       def hash_digest
         path=output_path.hash_digest.dir
         make_path(path)
         fn=base_filename.hash_digest
-        file=make_file(path,fn)
+        make_file(path,fn)
       end
       def qrcode
         path=output_path.qrcode.dir
@@ -5817,7 +5798,7 @@ WOK
       begin
         super(fns)
         @env=SiSU_Env::InfoEnv.new(fns)
-        ver=InfoVersion.instance
+        InfoVersion.instance
         if operation.class.inspect =~/SiSU_Param/
           @md=operation
         end
@@ -5896,7 +5877,7 @@ WOK
       @env=SiSU_Env::InfoEnv.new('',@md)
     end
     def html
-      css=if @md.doc_css \
+      if @md.doc_css \
       and FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@md.doc_css}_html.css")
         "#{@md.doc_css}_html.css"
       elsif FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@env.path.stub_pwd}_html.css")
@@ -5906,7 +5887,7 @@ WOK
       end
     end
     def html_tables
-      css=if @md.doc_css \
+      if @md.doc_css \
       and FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@md.doc_css}_html_tables.css")
         "#{@md.doc_css}_html_tables.css"
       elsif FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@env.path.stub_pwd}_html_tables.css")
@@ -5915,7 +5896,7 @@ WOK
       end
     end
     def xhtml
-      css=if @md.doc_css \
+      if @md.doc_css \
       and FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@md.doc_css}_xhtml.css")
         "#{@md.doc_css}_xhtml.css"
       elsif FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@env.path.stub_pwd}_xhtml.css")
@@ -5924,7 +5905,7 @@ WOK
       end
     end
     def xml_sax
-      css=if @md.doc_css \
+      if @md.doc_css \
       and FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@md.doc_css}_xml_sax.css")
         "#{@md.doc_css}_xml_sax.css"
       elsif FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@env.path.stub_pwd}_xml_sax.css")
@@ -5933,7 +5914,7 @@ WOK
       end
     end
     def xml_dom
-      css=if @md.doc_css \
+      if @md.doc_css \
       and FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@md.doc_css}_xml_dom.css")
         "#{@md.doc_css}_xml_dom.css"
       elsif FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@env.path.stub_pwd}_xml_dom.css")
@@ -5942,7 +5923,7 @@ WOK
       end
     end
     def docbook_xml
-      css=if @md.doc_css \
+      if @md.doc_css \
       and FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@md.doc_css}_docbook.css")
         "#{@md.doc_css}_xml_dom.css"
       elsif FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@env.path.stub_pwd}_docbook.css")
@@ -5951,7 +5932,7 @@ WOK
       end
     end
     def homepage
-      css=if @md.doc_css \
+      if @md.doc_css \
       and FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@md.doc_css}_homepage.css")
         "#{@md.doc_css}_homepage.css"
       elsif FileTest.file?("#{@env.path.output}/#{@env.path.style}/#{@env.path.stub_pwd}_homepage.css")
diff --git a/lib/sisu/v4/termsheet.rb b/lib/sisu/v4/termsheet.rb
index 6f3956af..83207018 100644
--- a/lib/sisu/v4/termsheet.rb
+++ b/lib/sisu/v4/termsheet.rb
@@ -70,7 +70,6 @@ require_relative 'param'                                # param.rb
 @cX=SiSU_Screen::Ansi.new('yes').cX
 @done << "\n#{@cX.blue_hi}#{@cX.black}Summary#{@cX.off*2}"
 def talent(termsheet,flag)
-  no_ocn='0' if flag =~/0/ #flag to request switch off of text object numbering
   @@info=nil
   @@info=termsheet.gsub(/(.+?)\.termsheet\.rb/,'../facility_data/\1.html')
   @env=SiSU_Env::InfoEnv.new
@@ -104,7 +103,6 @@ WOK
       @report_file_i=File.new("#{@dir_fd}/#{@basename}.txt",'w+')
       @report_file_o=File.new("#{@dir_fd}/#{@basename}.html",'w+')
       @filename_new=File.new("#{@basename}.#{k}.sst",'w+')
-      file_array=IO.readlines(v,"\n")
       @do << %{#{k}}
       @filename_new << @document
         # "require v" pulls in the composite @document
diff --git a/lib/sisu/v4/texinfo.rb b/lib/sisu/v4/texinfo.rb
index d560e63c..b0f44a1f 100644
--- a/lib/sisu/v4/texinfo.rb
+++ b/lib/sisu/v4/texinfo.rb
@@ -106,11 +106,10 @@ module SiSU_TexInfo
         tool=(@opt.cmd =~/[MVv]/) \
         ?  "#{@env.program.texinfo} #{@md.file.output_path.texinfo.dir}/#{@md.file.base_filename.info}"
         : "[#{@opt.f_pth[:lng_is]}] #{@opt.fno}"
-        tell=@opt.cmd=~/[MVvz]/ \
+        @opt.cmd=~/[MVvz]/ \
         && @opt.cmd !~/q/ \
         ? SiSU_Screen::Ansi.new(@opt.cmd,'TexInfo',tool).green_hi_blue
         : SiSU_Screen::Ansi.new(@opt.cmd,'TexInfo',tool).green_title_hi
-        tell
         @md=SiSU_Param::Parameters.new(@opt).get
         directories
         @marshalfile=SiSU_Env::InfoFile.new(@opt.fns).marshal.dal_content
@@ -260,7 +259,6 @@ module SiSU_TexInfo
       @tex_file=[]
       @row_break='\\\\\\'
       @break_page="#{@row_break}\n#{@row_break} \n"
-      md={}
       @tex_file << SiSU_TexInfoFormat::Texinfo.new(@md).head
       mono=SiSU_TexInfoFormat::Texinfo.new(@md)
       @tex_file << mono.topnode(@md.title.full)
@@ -352,10 +350,6 @@ module SiSU_TexInfo
     def number_titles
       data,data_new=@data,[]
       @tex_file=[]
-      input=%{#{@md.markup}}[/(num_top\s*=\s*(\d?))?/m,2] # else default usually 4  # this was a bit of a trick required to pass nil to input if nothing matched... #puts input
-      num_top=input.to_i
-      t_no1=0;  t_no2=0;  t_no3=0;  t_no4=0;
-      no1=num_top; no2=(num_top + 1); no3=(num_top + 2);  no4=(num_top + 3);
       data.each do |dob|
         if (@md.markup =~ /num_top/i) \
         && (dob.obj !~ /#{Rx[:meta]}/)
diff --git a/lib/sisu/v4/texinfo_format.rb b/lib/sisu/v4/texinfo_format.rb
index a490c68b..04fb06f6 100644
--- a/lib/sisu/v4/texinfo_format.rb
+++ b/lib/sisu/v4/texinfo_format.rb
@@ -82,7 +82,6 @@ module SiSU_TexInfoFormat
     def head
       t=Time.now
       year=t.year
-      filename=%{#{@md.fns}}[/(.+?)\.\w\w\d\d$/,1]
       title=spec_char(@md.title.full)
       title=title.gsub(/<(br|p|i)>|<\/\s*(br|p|i)>|<(br|p)\s*\/>/," #{Tex[:backslash]*2} ").
         gsub(/\$/,"\\$").
@@ -98,7 +97,7 @@ module SiSU_TexInfoFormat
       author=@md.author if @md.author
       author ||=''
       author=author.gsub(/[\*]/,'') #if author
-      v=SiSU_Env::InfoVersion.instance.get_version
+      SiSU_Env::InfoVersion.instance.get_version
       head =<<WOK
 \\input texinfo   @c -*-texinfo-*-
 @comment %**start of header
@@ -165,8 +164,6 @@ WOK
         "@menu\n"
     end
     def dublincore
-      title=spec_char(@md.title.main) if @md.title.main
-      subtitle=spec_char(@md.title.sub) if @md.title.sub
       if defined? @md.title.full \
       and @md.title.full=~/\S+/
         full_title=spec_char(@md.title.full)
@@ -465,7 +462,7 @@ WOK
       @row_break='\\\\\\\\'
       @break_page="#{@row_break}\n#{@row_break} \n"
       if @dob[/#{Mx[:gr_o]}Th?#{Mx[:tc_p]}\s+c(\d+);(.+?)#{Mx[:gr_c]}/ui] #fix
-        no_of_cols,cols_width=$1,$2
+        cols_width=$2
         @w=cols_width.split(/;\s+/)
         @colW=[]
         @w.each  do |x|
@@ -489,7 +486,6 @@ WOK
         else
           @dob.obj=@dob.obj.gsub(/#{Mx[:tc_o]}#{Mx[:tc_p]}/u,'')
           @@table_pg_break_counter+=1
-          tablefoot=@dob[/\<!f(.+?)!\>/]
           @dob.obj=@dob.obj.gsub(/\<!f(.+?)!\>/,'')
         end
       end
@@ -517,7 +513,7 @@ WOK
     def png
       # very messy clean up ! - work area, testing
       z=@dob[/\\\{(.+?)\}(?:image|png)/,1] # match operator for z \\ fragile !
-      image,w,x,y=z.scan(/\S+/)
+      image=z.scan(/\S+/)[0] #image,w,x,y=z.scan(/\S+/)
       image=image.gsub(/\\/,'')
       @dob.obj=@dob.obj.gsub(/\\\{\S+\.(png|jpg|gif).+?\}(image|png)/,"<image #{image} not available>")  # fragile match operator\\ fragile !
     end
@@ -526,7 +522,7 @@ WOK
       z=@dob[/#{Mx[:lnk_o]}(.+?)#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/,1] # match operator for z \\ fragile !
       url=@dob[/((?:https?|file|ftp):\S+)/im,1]
       if @dob =~/\.(png|jpg|gif)/
-        image,w,x,y=z.scan(/\S+/)
+        image=z.scan(/\S+/)[0] #image,w,x,y=z.scan(/\S+/)
         image=image.gsub(/\\/,'')
         width=200
         width=z[/w=(\d+)/im,1] if z =~/w=(\d+)/
diff --git a/lib/sisu/v4/texpdf.rb b/lib/sisu/v4/texpdf.rb
index 4ad385d6..c69067aa 100644
--- a/lib/sisu/v4/texpdf.rb
+++ b/lib/sisu/v4/texpdf.rb
@@ -112,7 +112,7 @@ module SiSU_TeX
         @md=@particulars.md
         SiSU_Screen::Ansi.new(@opt.cmd,'LaTeX/PDF',"[#{@opt.f_pth[:lng_is]}] #{@opt.fno}").green_title_hi unless @opt.cmd =~/q/
         if @opt.cmd =~/[MVv]/
-          path=@env.url.output_tell
+          @env.url.output_tell
           if @md.opt.act[:pdf_l][:set]==:on
             SiSU_Screen::Ansi.new(@opt.cmd,@opt.fns,"#{@env.program.pdf_viewer} #{@md.file.output_path.pdf.dir}/#{@md.file.base_filename.pdf_l}pdf").flow
           end
@@ -229,7 +229,6 @@ module SiSU_TeX
           pwd=Dir.pwd
           Dir.chdir(pwd) #watch
           @tex_f_no=0
-          info={}
           if FileTest.file?(@env.source_file_with_path)
             @md.papersize_array.each do |ps|
               if @md.fns =~/\.(?:-|ssm\.)?sst$/
@@ -505,8 +504,6 @@ module SiSU_TeX
         dob
       end
       def markup_common(dob)
-        tex_f=nil
-        txt_obj={ dal: dob }
         if dob.of==:block
           @lineone=if dob.is==:block \
           || dob.is==:group \
@@ -711,7 +708,6 @@ module SiSU_TeX
       end
       def markup(data)
         @tex_file=[]
-        md={}
         home=@vz.txt_home.gsub(/#{Mx[:br_line]}|#{Mx[:br_nl]}|#{Mx[:br_paragraph]}|\\\\/,' - ') #no line splitting in heading neither html nor latex
         title=@md.title.full.gsub(/#{Mx[:br_line]}|#{Mx[:br_nl]}|#{Mx[:br_paragraph]}|\\\\/,' - ') #no line splitting in heading neither html nor latex
         @md.papersize_array.each do |ps|
@@ -726,7 +722,7 @@ module SiSU_TeX
             @@tex_head[ps][:l]=orient_landscape.document_head_with_orientation(@codeblock_box)
           end
         end
-        @tex_file <<<<-WOK
+        @tex_file << <<-WOK
 #{@tex_ml.header}#{@tex_ml.footer}
 \\tolerance=300
 \\clubpenalty=300
@@ -757,9 +753,6 @@ module SiSU_TeX
 % \\sloppy
 \\begin{document}
         WOK
-        sisu_rc_footnote=if @md.sc_info then @tex_ml.doc_sc_info_footnote_full
-        else                                 @tex_ml.doc_sc_info_footnote_brief
-        end
         @copymark='' #check and remove as now is superflous
         x={}
         txt_obj={ title: @md.title.full }
@@ -800,7 +793,7 @@ module SiSU_TeX
         @tex_file << unless @md.fnb =~/^mail\s*$/ then @tex_ml.site
         else                                           '\date'
         end
-        @tex_file <<<<-WOK
+        @tex_file << <<-WOK
 \\pagenumbering{roman}\\maketitle
 \\pagestyle{fancy}
         WOK
@@ -911,7 +904,6 @@ module SiSU_TeX
         dob
       end
       def number_paras(data)
-        tex_file=[]
         data.each do |dob|
           dob=if dob.is_a?(Hash)
             if ( dob['a4'] \
diff --git a/lib/sisu/v4/texpdf_format.rb b/lib/sisu/v4/texpdf_format.rb
index 9a1429de..c154fc2b 100644
--- a/lib/sisu/v4/texpdf_format.rb
+++ b/lib/sisu/v4/texpdf_format.rb
@@ -130,7 +130,7 @@ module SiSU_TeX_Pdf
     def longtable_landscape
       end_table='\end{longtable}'
       row_break='\\\\\\'
-      txt=if @dob.is==:table
+      if @dob.is==:table
         tw=case @dob.tmp[:paper_size]
         when /a4/i;      @tx.a4.landscape.w     #European default, SiSU default
         when /letter/i;  @tx.letter.landscape.w #U.S. default
@@ -175,7 +175,7 @@ module SiSU_TeX_Pdf
     def longtable_portrait
       end_table='\end{longtable}'
       row_break='\\\\\\'
-      txt=if @dob.is==:table
+      if @dob.is==:table
         tw=case @dob.tmp[:paper_size]
         when /a4/i;      @tx.a4.portrait.w     #European default, SiSU default
         when /letter/i;  @tx.letter.portrait.w #U.S. default
@@ -488,8 +488,6 @@ module SiSU_TeX_Pdf
     end
     def url_str_internal(str,idx=nil)
       map_nametags=SiSU_Particulars::CombinedSingleton.instance.get_map_nametags(@md).nametags_map #p map_nametags
-      rgx_url_generic=/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}#{Mx[:rel_o]}\S+?#{Mx[:rel_c]}/m
-      rgx_url_relative=/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}#{Mx[:rel_o]}:\S+?#{Mx[:rel_c]}/m
       rgx_url_internal=/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}#{Mx[:rel_o]}#?\S+?#{Mx[:rel_c]}/m
       while str =~/#{Mx[:lnk_o]}([^#{Mx[:lnk_o]}#{Mx[:lnk_c]}]+)#{Mx[:lnk_c]}#{Mx[:rel_o]}:(\S+?)#{Mx[:rel_c]}/m
         link,url=$1,$2
@@ -581,7 +579,7 @@ module SiSU_TeX_Pdf
       images_hash={ }
       generic_rgx=/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image\b)/m
       rgx_url_generic=/#{Mx[:lnk_o]}.+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/m
-      url_bare_rgx=/#{Mx[:url_o]}\S+?#{Mx[:url_c]}/m
+      #url_bare_rgx=/#{Mx[:url_o]}\S+?#{Mx[:url_c]}/m
       url_image_rgx=/#{Mx[:lnk_o]}[a-zA-Z0-9_\\-]+\.(?:png|jpg|gif).+?#{Mx[:lnk_c]}#{Mx[:url_o]}\S+?#{Mx[:url_c]}/m
       image_rgx=/#{Mx[:lnk_o]}[a-zA-Z0-9_\\-]+\.(?:png|jpg|gif).+?#{Mx[:lnk_c]}image/m
       @md.papersize_array.each do |ps|
@@ -614,7 +612,7 @@ module SiSU_TeX_Pdf
             end
             if images_hash[ps] =~/#{Mx[:lnk_o]}\s*\S+\.?(?:png|jpg|gif)/m \
             and images_hash[ps]=~/\s+\d+x\d+(\s+|\s*#{Mx[:lnk_c]})/m
-              image,x,y=z.scan(/\S+/)
+              image=z.scan(/\S+/)[0] #image,x,y=z.scan(/\S+/)
               image.gsub!(/\\/,'')
               w=((z =~/\s(\d+)x\d*/) ? z[/\s(\d+)x\d*/,1] : 200)
               width={}
@@ -645,8 +643,6 @@ module SiSU_TeX_Pdf
                 pt=/(\/\S+?\/sisupod\/\S+?\/sisupod)\/doc/.match(@md.opt.f_pth[:pth])[1]
                 img_src=pt + '/image'
                 if FileTest.file?("#{img_src}/#{image}")
-                  img_src
-
                   case images_hash[ps]
                   when url_image_rgx
                     images_hash[ps].sub!(url_image_rgx,
@@ -699,7 +695,6 @@ module SiSU_TeX_Pdf
         end #while loop
         images_hash
       end
-      images_hash
       use_images_hash={}
       images_hash.each do |k,t|
         use_images_hash[k]={ l: t, p: t}
@@ -1425,7 +1420,7 @@ module SiSU_TeX_Pdf
       "\\rhead[ ]{ }\n"
     end
     def footer
-      f="\\lfoot[\\textrm{\\thepage}]{\\tiny \\href{#{@md.footer_links[:left][:url]}}{#{@md.footer_links[:left][:say]}}}\n" +
+      "\\lfoot[\\textrm{\\thepage}]{\\tiny \\href{#{@md.footer_links[:left][:url]}}{#{@md.footer_links[:left][:say]}}}\n" +
       "\\cfoot{\\href{#{@md.footer_links[:center][:url]}}{#{@md.footer_links[:center][:say]}}}\n" +
       "\\rfoot[\\tiny \\href{}{}]{\\textrm{\\thepage}}\n"
     end
@@ -1518,7 +1513,6 @@ Generated by \\href{http://www.jus.uio.no/sisu}{SiSU www.jus.uio.no/sisu } \\\\
     end
     def doc_tail
       dir=SiSU_Env::InfoEnv.new(@md.fns)
-      base_html="#{dir.url.root}/#{@md.fnb}"
       v=SiSU_Env::InfoVersion.instance.get_version
       sisu_ico=if FileTest.file?("#{dir.path.image_source_include}/sisu.png")
         "\\includegraphics*[width=60pt]{#{dir.path.image_source_include}/sisu.png}"
diff --git a/lib/sisu/v4/update.rb b/lib/sisu/v4/update.rb
index 1ca01e28..e5b9a504 100644
--- a/lib/sisu/v4/update.rb
+++ b/lib/sisu/v4/update.rb
@@ -96,7 +96,7 @@ module SiSU_UpdateControlFlag
         if FileTest.file?("#{@md.file.output_path.txt.dir}/#{@md.file.base_filename.txt}")==true
           flag=flag + 'a'
         end
-        if FileTest.file?("#{@md.file.output_path.html_seg.dir}/#{@md.file.base_filename.html_seg}")==true
+        if FileTest.file?("#{@md.file.output_path.html_seg.dir}/#{@md.file.base_filename.html_seg}")==true \
         or FileTest.file?("#{@md.file.output_path.html_scroll.dir}/#{@md.file.base_filename.html_scroll}")==true
           flag=flag + 'h'
         end
diff --git a/lib/sisu/v4/urls.rb b/lib/sisu/v4/urls.rb
index e5341581..f0293a40 100644
--- a/lib/sisu/v4/urls.rb
+++ b/lib/sisu/v4/urls.rb
@@ -236,8 +236,6 @@ module SiSU_Urls
       and opt.cmd =~/[abcehHmNoptwxXy]/ \
       and x=~/^[#{opt.cmd}]/ \
       and opt.cmd =~/[MV]/
-        m=$1
-        f=y
         tool=@prog.text_editor
         if x =~/^m/ \
         and @opt.cmd=~/m/ \
@@ -247,7 +245,7 @@ module SiSU_Urls
         if x=~/^([hw])/ \
         and @opt.cmd=~/[hw]/ \
         and x=~/^[#{@opt.cmd}]/ \
-        and x !~/segmented/; "#{y}.html"
+        and x !~/segmented/
           SiSU_Screen::Ansi.new(@opt.cmd,"-#{x}","#{@prog.text_editor} #{@env.processing_path.tune}/#{@md.fns}.tune").maintenance
         end
         if x=~/^p/ \
@@ -417,7 +415,7 @@ module SiSU_Urls
       i="(output manifest) [#{@opt.f_pth[:lng_is]}] #{@env.url.output_tell}/#{@fnb}/sisu_manifest.html"
       SiSU_Screen::Ansi.new(@opt.cmd,'URLs',i).grey_title_hi
       @u.each do |x,y|
-        tell=case x
+        case x
         when /^m/
           show.meta(x,y)
         when /^[BcdNsxXy]/
diff --git a/lib/sisu/v4/webrick.rb b/lib/sisu/v4/webrick.rb
index d873f841..1b1b6bd8 100644
--- a/lib/sisu/v4/webrick.rb
+++ b/lib/sisu/v4/webrick.rb
@@ -74,7 +74,6 @@ module SiSU_Webserv
       @env=SiSU_Env::InfoEnv.new
       port=SiSU_Env::InfoPort.new
       @host=@env.url.webrick
-      host='localhost'
       @port=port.webrick
       @serve=[]
       Dir.foreach(@env.path.webserv) do |x|
@@ -124,7 +123,7 @@ module SiSU_Webserv
         page.p {page.b{"Webrick Served Directories: "}} +
 WOK
                                                                #% wb_s2 (mounts)
-      @mount.each do |x,y| wb_s2 <<<<WOK
+      @mount.each do |x,y| wb_s2 << <<WOK
             page.p {page.b{'<a href="#{@host}:#{@port}#{x}/">#{x}</a> '} + '<a href="#{@host}:#{@port}#{x}/">#{@host}:#{@port}#{x}</a> (mounts: #{y}/)   <a href="#{@host}:#{@port}#{x}/wb.cgi">info (wb.cgi)</a>'} +
 WOK
     end
diff --git a/lib/sisu/v4/wikispeak.rb b/lib/sisu/v4/wikispeak.rb
index 8d7719da..9e171367 100644
--- a/lib/sisu/v4/wikispeak.rb
+++ b/lib/sisu/v4/wikispeak.rb
@@ -68,7 +68,6 @@ module SiSU_Wikispeak
   require_relative 'plaintext_format'                   # plaintext_format.rb
     include Format
   require_relative 'shared_txt'
-  pwd=Dir.pwd
   @@alt_id_count,@@alt_id_count,@@tablehead,@@number_of_cols=0,0,0,0
   @@tablefoot=''
   class Source
@@ -136,7 +135,7 @@ module SiSU_Wikispeak
           end
         end
         format=@format.dup
-        @lev_para_ocn=if @para =~/.+#{Mx[:id_o]}~\d+;(?:\w|[0-6]:)\d+;\w\d+#{Mx[:id_c]}#{Mx[:id_o]}#{@dp}:#{@dp}#{#Mx[:id_c]}$/
+        @lev_para_ocn=if @para =~/.+#{Mx[:id_o]}~\d+;(?:\w|[0-6]:)\d+;\w\d+#{Mx[:id_c]}#{Mx[:id_o]}#{@dp}:#{@dp}#{Mx[:id_c]}$/
           Format::FormatTextObject.new(format,@text,@ocn)
         else
           Format::FormatTextObject.new(format,@text,"#{Mx[:id_o]}~(\d+);[um]\d+;\w\d+#{Mx[:id_c]}#{Mx[:id_o]}#{@dp}:#{@dp}#{Mx[:id_c]}")
@@ -164,9 +163,8 @@ module SiSU_Wikispeak
         publish
       end
       # Used for extraction of endnotes from paragraphs
-      def extract_endnotes(para='')
-        notes=para.scan(/(?:#{Mx[:en_a_o]}|#{Mx[:en_b_o]})([\d*+]+\s+.+?)\s*#{Mx[:id_o]}#{@dp}#{Mx[:id_c]}(?:#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/)
-        @n=[]
+      def extract_endnotes(para='') #check
+        para.scan(/(?:#{Mx[:en_a_o]}|#{Mx[:en_b_o]})([\d*+]+\s+.+?)\s*#{Mx[:id_o]}#{@dp}#{Mx[:id_c]}(?:#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/)
       end
       def wiki_metadata(meta)
         util=SiSU_TextUtils::Wrap.new(meta.text,70,15,1)
@@ -212,8 +210,6 @@ WOK
       end
       def wiki_structure(para='',lv='',ocn='',hname='') #% Used to extract the structure of a document
         lv=lv.to_i
-        n=lv - 1
-        n3=lv + 2
         lv=nil if lv==0
         extract_endnotes(para)
         para.gsub!(/(?:#{Mx[:en_a_o]}|#{Mx[:en_b_o]})(?:[\d*+]+)\s+(.+?)#{Mx[:id_o]}#{@dp}#{Mx[:id_c]}(?:#{Mx[:en_a_c]}|#{Mx[:en_b_c]})/,'<ref>\1</ref>') # endnote marker marked up
@@ -231,13 +227,12 @@ WOK
       end
       def markup                                                               # Used for major markup instructions
         data=@data
-        dir=SiSU_Env::InfoEnv.new(@md.fns)
+        SiSU_Env::InfoEnv.new(@md.fns)
         @data_mod,@endnotes,@level,@cont,@copen,@wiki_contents_close=Array.new(6){[]}
         (0..6).each { |x| @cont[x]=@level[x]=false }
         (4..6).each { |x| @wiki_contents_close[x]='' }
         wiki_tail
         table_message='[table omitted, see other document formats]'
-        fix=[]
         data.each do |para|
           para.gsub!(/#{Mx[:gr_o]}Th?#{Mx[:tc_p]}.+/um,"#{@br}#{table_message}") #fix
           para.gsub!(/.+?<-#>/,'')                                           # remove dummy headings (used by html) #check
@@ -259,7 +254,6 @@ WOK
           para.gsub!(/&nbsp;|#{Mx[:nbsp]}/,' ')                               # decide on
           para.gsub!(/(?:^|[^_\\])#{Mx[:lnk_o]}(\S+?\.(?:png|jpg|gif)) .+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/,'    [ \1 ]') #"[ #{dir.url.images_local}\/\\1 ]")
           para.gsub!(/(?:^|[^_\\])#{Mx[:lnk_o]}\s*\S+?\.(?:png|jpg|gif)\s+.+?"(.*?)"\s*#{Mx[:lnk_c]}\S+/,'[image: "\1"]')
-          wordlist=para.scan(/\S+/)
           if para =~/^@(\S+?):\s+(.+?)\Z/m # for headers
             d_meta=SiSU_TextUtils::HeaderScan.new(@md,para).meta
             if d_meta; wiki_metadata(d_meta)
@@ -342,9 +336,7 @@ WOK
         end
       end
       def publish
-        divider="="
         content=[]
-        data=@data
         content << @@wiki[:open]
         content << @@wiki[:head]
         content << @@wiki[:body]
diff --git a/lib/sisu/v4/xhtml.rb b/lib/sisu/v4/xhtml.rb
index c6dca8fb..a62c942f 100644
--- a/lib/sisu/v4/xhtml.rb
+++ b/lib/sisu/v4/xhtml.rb
@@ -84,8 +84,6 @@ module SiSU_XHTML
       begin
         @env,@md,@dal_array=@particulars.env,@particulars.md,@particulars.dal_array
         unless @opt.cmd =~/q/
-          path=@env.path.output_tell
-          loc=@env.url.output_tell
           tool=if @opt.cmd =~/[MV]/
             "#{@env.program.web_browser} file://#{@md.file.output_path.xhtml.dir}/#{@md.file.base_filename.xhtml}"
           elsif @opt.cmd =~/v/
@@ -196,7 +194,7 @@ WOK
         if defined? dob.tags \
         and dob.tags.length > 0 # insert tags "hypertargets"
           dob.tags.each do |t|
-            tags=tags +%{<named id="#{t}" />}
+            tags=tags << %{<named id="#{t}" />}
           end
         end
         tags
@@ -207,8 +205,7 @@ WOK
           named=name_tags(dob)
           if dob.is==:heading
             lv=dob.ln
-            n=dob.ln - 1
-            n3=dob.ln + 2
+            dob.ln + 2
           else lv=nil
           end
           extract_endnotes(dob)
@@ -367,7 +364,6 @@ WOK
       end
       def pre
         rdf=SiSU_XML_Tags::RDF.new(@md)
-        dir=SiSU_Env::InfoEnv.new
         @@xml[:head],@@xml[:body]=[],[]
         stylesheet=SiSU_Style::CSS_HeadInfo.new(@md,'xhtml').stylesheet
         encoding=(@sys.locale =~/utf-?8/i) ? '<?xml version="1.0" encoding="UTF-8" standalone="no"?>' : '<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>'
diff --git a/lib/sisu/v4/xml.rb b/lib/sisu/v4/xml.rb
index e82fe58c..3599734c 100644
--- a/lib/sisu/v4/xml.rb
+++ b/lib/sisu/v4/xml.rb
@@ -84,8 +84,6 @@ module SiSU_XML_SAX
       begin
         @env,@md,@dal_array=@particulars.env,@particulars.md,@particulars.dal_array
         unless @opt.cmd =~/q/
-          path=@env.path.output_tell
-          loc=@env.url.output_tell
           tool=if @opt.cmd =~/[MV]/; "#{@env.program.web_browser} file://#{@md.file.output_path.xml_sax.dir}/#{@md.file.base_filename.xml_sax}\n\t#{@env.program.xml_viewer} file://#{@md.file.output_path.xml_sax.dir}/#{@md.file.base_filename.xml_sax}"
           elsif @opt.cmd =~/v/; "#{@env.program.web_browser} file://#{@md.file.output_path.xml_sax.dir}/#{@md.file.base_filename.xml_sax}"
           else "[#{@opt.f_pth[:lng_is]}] #{@opt.fno}"
@@ -216,8 +214,7 @@ WOK
       def xml_structure(dob,type='norm')
         if dob.is==:heading
           lv=dob.ln
-          n=dob.ln - 1
-          n3=dob.ln + 2
+          dob.ln + 2
         else lv=nil
         end
         extract_endnotes(dob)
@@ -404,7 +401,6 @@ WOK
       end
       def pre
         rdf=SiSU_XML_Tags::RDF.new(@md)
-        dir=SiSU_Env::InfoEnv.new
         @@xml[:head],@@xml[:body]=[],[]
         stylesheet=SiSU_Style::CSS_HeadInfo.new(@md,'xml_sax').stylesheet
         encoding=if @sys.locale =~/utf-?8/i; '<?xml version="1.0" encoding="UTF-8" standalone="no"?>'
diff --git a/lib/sisu/v4/xml_dom.rb b/lib/sisu/v4/xml_dom.rb
index a5aafd03..8660dbf3 100644
--- a/lib/sisu/v4/xml_dom.rb
+++ b/lib/sisu/v4/xml_dom.rb
@@ -85,8 +85,6 @@ module SiSU_XML_DOM
       begin
         @env,@md,@dal_array=@particulars.env,@particulars.md,@particulars.dal_array
         unless @opt.cmd =~/q/
-          path=@env.path.output_tell
-          loc=@env.url.output_tell
           tool=if @opt.cmd =~/[MV]/; "#{@env.program.web_browser}  file://#{@md.file.output_path.xml_dom.dir}/#{@md.file.base_filename.xml_dom}\n\t#{@env.program.xml_viewer} file://#{@md.file.output_path.xml_dom.dir}/#{@md.file.base_filename.xml_dom}"
           elsif @opt.cmd =~/v/; "#{@env.program.web_browser} file://#{@md.file.output_path.xml_dom.dir}/#{@md.file.base_filename.xml_dom}"
           else "[#{@opt.f_pth[:lng_is]}] #{@opt.fno}"
@@ -184,7 +182,7 @@ WOK
           n1=dob.ln
           n2=dob.ln + 1
           n3=dob.ln + 2
-          v=dob.ln - 3
+          dob.ln - 3
         else lv=nil
         end
         tag=if defined? dob.name and dob.name=~/\S+/
@@ -219,13 +217,9 @@ WOK
           n1=dob.ln
           n2=dob.ln + 1
           n3=dob.ln + 2
-          v=dob.ln - 3
+          dob.ln - 3
         else lv=nil
         end
-        tag=if defined? dob.name and dob.name=~/\S+/
-          "\n#{Ax[:tab]*n3}<nametag>#{dob.name}</nametag>"
-        else ''
-        end
         case lv
         when 1..3
           xml_el="<heading#{lv}>"
@@ -255,9 +249,7 @@ WOK
           end
         when 4..6
           6.downto(lv) do |x|
-            y=x - 1
             if @level[x]==true
-              u=x - 3;
               @xml_contents_close[x]=''
             end
           end
@@ -343,7 +335,7 @@ WOK
         dob
       end
       def table_structure(dob) #tables
-        table=SiSU_XHTML_Shared::TableXHTML.new(dob)
+        SiSU_XHTML_Shared::TableXHTML.new(dob)
       end
       def markup(data)
         xml_sc(@md)
@@ -400,7 +392,7 @@ WOK
                     dob.obj=x.heading_body6
                   end
                 else
-                  ocn=dob.ocn
+                  dob.ocn
                   if dob.is==:verse
                     type='verse'
                     poem_structure(dob) #redo
@@ -482,7 +474,6 @@ WOK
       end
       def pre
         rdf=SiSU_XML_Tags::RDF.new(@md)
-        dir=SiSU_Env::InfoEnv.new
         stylesheet=SiSU_Style::CSS_HeadInfo.new(@md,'xml_dom').stylesheet
         encoding=if @sys.locale =~/utf-?8/i; '<?xml version="1.0" encoding="UTF-8" standalone="no"?>'
         else                                 '<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>'
diff --git a/lib/sisu/v4/xml_fictionbook.rb b/lib/sisu/v4/xml_fictionbook.rb
index ba0b8f50..dcf11fc0 100644
--- a/lib/sisu/v4/xml_fictionbook.rb
+++ b/lib/sisu/v4/xml_fictionbook.rb
@@ -68,7 +68,6 @@ module SiSU_XML_Fictionbook
   require_relative 'shared_xml'                         # shared_xml.rb
     include SiSU_XML_Munge
   include SiSU_Param
-  pwd=Dir.pwd
   class Source
     def initialize(opt)
       @opt=opt
@@ -183,7 +182,7 @@ WOK
         else "<#{type}><p>#{para}</p></#{type}>"
         end
         util=SiSU_TextUtils::Wrap.new(para,80,10)
-        wrap=util.line_wrap
+        util.line_wrap
       end
       def put(line)
         @file_fictionbook.puts line
diff --git a/lib/sisu/v4/xml_format.rb b/lib/sisu/v4/xml_format.rb
index d3607c1d..316a4102 100644
--- a/lib/sisu/v4/xml_format.rb
+++ b/lib/sisu/v4/xml_format.rb
@@ -271,7 +271,7 @@ WOK
   end
   class FormatTextObject
     attr_accessor :md,:txt,:format,:paranum,:p_num,:para_id,:headname,:font
-   def initialize(md,dob)
+    def initialize(md,dob)
       @md,@dob=md,dob
       if @dob[:ocn]=~/\d+/
         @paranum=/(\d+)/m.match(@dob[:ocn])[1]
@@ -482,7 +482,7 @@ WOK
 </tr></table>}
     end
     def make_scroll_seg_pdf
-      manifest=scroll=seg=''
+      seg=''
       wgt=Widget.new(@md)
       seg=%{<td align="center" bgcolor=#{@vz.color_band2}>
   #{@vz.nav_txt_toc_link}
@@ -500,7 +500,6 @@ WOK
 </tr></table>}
     end
     def make_concordance
-      manifest=scroll=seg=''
       wgt=Widget.new(@md)
       %{<table summary="toc scroll and segment with pdf" border="0" cellpadding="3" cellspacing="0">
 <tr>
@@ -751,7 +750,6 @@ WOK
 #{@vz.table_close}}
     end
     def toc_next2
-      pre,nxt=false,true
       toc_nav(false,true).dup
     end
     def toc_pre_next2
@@ -761,10 +759,9 @@ WOK
       toc_nav(true,false,2).dup
     end
     def doc_types #used in seg_nav_band ###
-      scroll=seg=''
       wgt=Widget.new(@md)
       #dir=SiSU_Env::InfoEnv.new(@md.fns)
-      x=if @md.concord_make
+      if @md.concord_make
         %{
 <table summary="segment navigation available documents types: toc,doc,pdf,concordance" border="0" cellpadding="3" cellspacing="0">
 <tr>
@@ -1005,7 +1002,7 @@ WOK
         end
       else
         if @md.opt.cmd =~/M/
-          p __FILE__ +':'+ __LINE__.to_s
+          p __FILE__ << ':' << __LINE__.to_s
           p t_o.class
           p caller
         end
diff --git a/lib/sisu/v4/xml_scaffold.rb b/lib/sisu/v4/xml_scaffold.rb
index 93f0773f..98792017 100644
--- a/lib/sisu/v4/xml_scaffold.rb
+++ b/lib/sisu/v4/xml_scaffold.rb
@@ -65,7 +65,6 @@ module SiSU_XML_Scaffold
   require_relative 'dal'                                # dal.rb
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
-  pwd=Dir.pwd
   class Source
     def initialize(opt)
       @opt=opt
diff --git a/lib/sisu/v4/zap.rb b/lib/sisu/v4/zap.rb
index 42f41fb7..2890cfef 100644
--- a/lib/sisu/v4/zap.rb
+++ b/lib/sisu/v4/zap.rb
@@ -62,7 +62,6 @@
 module SiSU_Zap
   require_relative 'sysenv'                             # sysenv.rb
     include SiSU_Env
-  pwd=Dir.pwd
   class Source
     def initialize(opt)
       @opt=opt
-- 
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