v5: some renaming to ao from dal continued

36 files changed, 276 insertions, 280 deletions

diff --git a/lib/sisu/v5/air.rb b/lib/sisu/v5/air.rb
index cd5c2f68..a6636fe9 100644
--- a/lib/sisu/v5/air.rb
+++ b/lib/sisu/v5/air.rb
@@ -62,7 +62,7 @@
 module SiSU_Air
   require_relative 'particulars'                        # particulars.rb
   class Source
-    @@dal_array=[]
+    @@ao_array=[]
     @@fns=nil
     def initialize(opt)
       @opt=opt
@@ -70,7 +70,7 @@ module SiSU_Air
       @particulars=SiSU_Particulars::Combined.new(opt)
       #@env=@particulars.env
       #@md=@particulars.md
-      #@dal_array=@particulars.dal_array
+      #@ao_array=@particulars.ao_array
     end
     def read
     end
@@ -78,7 +78,7 @@ module SiSU_Air
     def print
       puts @particulars.md.inspect
       puts @particulars.env.inspect
-      puts @particulars.dal_array
+      puts @particulars.ao_array
     end
   end
 end
diff --git a/lib/sisu/v5/ao.rb b/lib/sisu/v5/ao.rb
index 00484ff9..7c367980 100644
--- a/lib/sisu/v5/ao.rb
+++ b/lib/sisu/v5/ao.rb
@@ -89,7 +89,7 @@ module SiSU_AO
     end
   end
   class Source <Instantiate
-    @@dal_array=[]
+    @@ao_array=[]
     @@idx_arr={ sst: [], tex: [], html: [], xhtml: [] }
     @@map_arr={ nametags: [], ocn_htmlseg: [] }
     @@fns=nil
@@ -105,23 +105,23 @@ module SiSU_AO
         opt.fns
       end
       @make_fns=SiSU_Env::InfoFile.new(fn_use)
-      @fnm=@make_fns.marshal.dal_metadata
-      @fnc=@make_fns.marshal.dal_content
-      @idx_sst=@make_fns.marshal.dal_idx_sst_rel_html_seg
-      @idx_raw=@make_fns.marshal.dal_idx_sst_rel
-      @idx_html=@make_fns.marshal.dal_idx_html
-      @idx_xhtml=@make_fns.marshal.dal_idx_xhtml
-      @map_nametags=@make_fns.marshal.dal_map_nametags
-      @map_ocn_htmlseg=@make_fns.marshal.dal_map_ocn_htmlseg
+      @fnm=@make_fns.marshal.ao_metadata
+      @fnc=@make_fns.marshal.ao_content
+      @idx_sst=@make_fns.marshal.ao_idx_sst_rel_html_seg
+      @idx_raw=@make_fns.marshal.ao_idx_sst_rel
+      @idx_html=@make_fns.marshal.ao_idx_html
+      @idx_xhtml=@make_fns.marshal.ao_idx_xhtml
+      @map_nametags=@make_fns.marshal.ao_map_nametags
+      @map_ocn_htmlseg=@make_fns.marshal.ao_map_ocn_htmlseg
       @env=SiSU_Env::InfoEnv.new
     end
-    def read                                                                   #creates dal
+    def read                                                                   #creates ao
       begin
-        @@dal_array=[]
+        @@ao_array=[]
         @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
         ? @fnx
         : @opt.fns
-        create_dal
+        create_ao
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@@fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -130,19 +130,19 @@ module SiSU_AO
         SiSU_AO::Instantiate.new
       end
     end
-    def get                                                                    #reads dal, unless does not exist then creates first
+    def get                                                                    #reads ao, unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
           ? @fnx
           : @opt.fns
-          @@dal_array=[]
+          @@ao_array=[]
         end
-        dal=(@@dal_array.empty?) \
+        ao=(@@ao_array.empty?) \
         ? read_fnc
-        : @@dal_array.dup
+        : @@ao_array.dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -151,9 +151,9 @@ module SiSU_AO
         SiSU_AO::Instantiate.new
       end
     end
-    def get_idx_sst                                                            #reads dal idx.sst, #unless does not exist then creates first
+    def get_idx_sst                                                            #reads ao idx.sst, #unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -161,7 +161,7 @@ module SiSU_AO
           : @opt.fns
           @@idx_arr[:sst]=[]
         end
-        dal=(@@idx_arr[:sst].empty?) ? read_idx_sst : @@idx_arr[:sst].dup #check
+        ao=(@@idx_arr[:sst].empty?) ? read_idx_sst : @@idx_arr[:sst].dup #check
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -172,7 +172,7 @@ module SiSU_AO
     end
     def get_idx_raw
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -180,7 +180,7 @@ module SiSU_AO
           : @opt.fns
           @@idx_arr[:tex]=[]
         end
-        dal=(@@idx_arr[:tex].empty?) ? read_idx_raw : @@idx_arr[:tex].dup #check
+        ao=(@@idx_arr[:tex].empty?) ? read_idx_raw : @@idx_arr[:tex].dup #check
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -189,9 +189,9 @@ module SiSU_AO
         SiSU_AO::Instantiate.new
       end
     end
-    def get_idx_html                                                           #reads dal idx.html, #unless does not exist then creates first
+    def get_idx_html                                                           #reads ao idx.html, #unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -199,7 +199,7 @@ module SiSU_AO
           : @opt.fns
           @@idx_arr[:html]=[]
         end
-        dal=(@@idx_arr[:html].empty?) ? read_idx_html : @@idx_arr[:html].dup
+        ao=(@@idx_arr[:html].empty?) ? read_idx_html : @@idx_arr[:html].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -208,9 +208,9 @@ module SiSU_AO
         SiSU_AO::Instantiate.new
       end
     end
-    def get_idx_xhtml                                                          #reads dal idx.xhtml, #unless does not exist then creates first
+    def get_idx_xhtml                                                          #reads ao idx.xhtml, #unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -218,7 +218,7 @@ module SiSU_AO
           : @opt.fns
           @@idx_arr[:xthml]=[]
         end
-        dal=(@@idx_arr[:xhtml].empty?) ? read_idx_xhtml : @@idx_arr[:xhtml].dup
+        ao=(@@idx_arr[:xhtml].empty?) ? read_idx_xhtml : @@idx_arr[:xhtml].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -227,9 +227,9 @@ module SiSU_AO
         SiSU_AO::Instantiate.new
       end
     end
-    def get_map_nametags                                                       #reads dal map.nametags, #unless does not exist then creates first
+    def get_map_nametags                                                       #reads ao map.nametags, #unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -237,7 +237,7 @@ module SiSU_AO
           : @opt.fns
           @@map_arr[:nametags]=[]
         end
-        dal=(@@map_arr[:nametags].empty?) ? read_map_nametags : @@map_arr[:nametags].dup
+        ao=(@@map_arr[:nametags].empty?) ? read_map_nametags : @@map_arr[:nametags].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -246,9 +246,9 @@ module SiSU_AO
         SiSU_AO::Instantiate.new
       end
     end
-    def get_map_ocn_htmlseg                                                    #reads dal map.ocn_htmlseg, #unless does not exist then creates first
+    def get_map_ocn_htmlseg                                                    #reads ao map.ocn_htmlseg, #unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns \
         or @@fns==@fnx
           @@fns=(@fnx && @fnx =~/\.ss[tmi]$/) \
@@ -256,7 +256,7 @@ module SiSU_AO
           : @opt.fns
           @@map_arr[:ocn_htmlseg]=[]
         end
-        dal=(@@map_arr[:ocn_htmlseg].empty?) ? read_map_ocn_htmlseg : @@map_arr[:ocn_htmlseg].dup
+        ao=(@@map_arr[:ocn_htmlseg].empty?) ? read_map_ocn_htmlseg : @@map_arr[:ocn_htmlseg].dup
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -266,8 +266,8 @@ module SiSU_AO
       end
     end
   protected
-    def create_dal
-      dal_array=[]
+    def create_ao
+      ao_array=[]
       unless @opt.act[:quiet][:set]==:on
         tell=(@opt.act[:verbose][:set]==:on \
         || @opt.act[:verbose_plus][:set]==:on \
@@ -285,7 +285,7 @@ module SiSU_AO
       meta=file_array=@env.source_file_processing_array(fn)
       @md=SiSU_Param::Parameters::Instructions.new(meta,@opt).extract
       meta=nil
-      dal=SiSU_AO::Make.new(fn,@md,file_array).song
+      ao=SiSU_AO::Make.new(fn,@md,file_array).song
       if (@opt.act[:verbose][:set]==:on \
       || @opt.act[:verbose_plus][:set]==:on \
       || @opt.act[:maintenance][:set]==:on)
@@ -294,12 +294,12 @@ module SiSU_AO
         || @opt.act[:verbose_plus][:set]==:on)
           SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"~meta/#{@opt.fns}.meta").output
         elsif @opt.act[:maintenance][:set]==:on
-          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"dal -> #{cf.meta}").txt_grey
+          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"ao -> #{cf.meta}").txt_grey
         end
       end
-      dal.each {|s| dal_array << s}
+      ao.each {|s| ao_array << s}
       if @opt.act[:maintenance][:set]==:on
-        dal_array.each do |obj|
+        ao_array.each do |obj|
           if defined? obj.parent
             if defined? obj.ln
               if defined? obj.node
@@ -317,19 +317,19 @@ module SiSU_AO
           end
         end
       end
-      dal_array
+      ao_array
     end
     def read_fnm
-      dal=[]
-      dal=(FileTest.file?(@fnm)) \
-      ? (File.open(@fnm,'r:utf-8'){ |f| dal=Marshal.load(f)})
-      : SiSU_AO::Source.new(@opt).create_dal
+      ao=[]
+      ao=(FileTest.file?(@fnm)) \
+      ? (File.open(@fnm,'r:utf-8'){ |f| ao=Marshal.load(f)})
+      : SiSU_AO::Source.new(@opt).create_ao
     end
     def read_fnc
-      dal=[]
-      dal=(FileTest.file?(@fnc)) \
-      ? (File.open(@fnc,'r:utf-8'){ |f| dal=Marshal.load(f)})
-      : SiSU_AO::Source.new(@opt).create_dal
+      ao=[]
+      ao=(FileTest.file?(@fnc)) \
+      ? (File.open(@fnc,'r:utf-8'){ |f| ao=Marshal.load(f)})
+      : SiSU_AO::Source.new(@opt).create_ao
     end
     def read_idx_sst
       m=[]
@@ -439,21 +439,21 @@ module SiSU_AO
           end
         end
       else
-        hard="#{@dir.processing_path.dal}/#{@md.fns}.meta"
+        hard="#{@dir.processing_path.ao}/#{@md.fns}.meta"
         File.unlink(hard) if FileTest.file?(hard)
-        hard="#{@dir.processing_path.dal}/#{@md.fns}.txt"
+        hard="#{@dir.processing_path.ao}/#{@md.fns}.txt"
         File.unlink(hard) if FileTest.file?(hard)
-        hard="#{@dir.processing_path.dal}/#{@md.fns}.debug.txt"
+        hard="#{@dir.processing_path.ao}/#{@md.fns}.debug.txt"
         File.unlink(hard) if FileTest.file?(hard)
       end
     end
     def make_marshal_content
-      marshal_dal=@make.marshal.dal_content
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
+      marshal_ao=@make.marshal.ao_content
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
     end
     def make_marshal_metadata
-      marshal_dal=@make.marshal.dal_metadata
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
+      marshal_ao=@make.marshal.ao_metadata
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
     end
     def idx_html_hard_output
       if @md.book_idx \
@@ -464,33 +464,33 @@ module SiSU_AO
           @data.each {|s| filename_meta.puts s.strip + "\n" unless s.strip.empty?}
         end
       else
-        hard_idx_html="#{@dir.processing_path.dal}/#{@md.fns}.idx.html"
+        hard_idx_html="#{@dir.processing_path.ao}/#{@md.fns}.idx.html"
         File.unlink(hard_idx_html) if FileTest.file?(hard_idx_html)
       end
     end
     def make_marshal_idx_sst_html_seg
-      marshal_dal=@make.marshal.dal_idx_sst_rel_html_seg
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
+      marshal_ao=@make.marshal.ao_idx_sst_rel_html_seg
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
     end
     def make_marshal_idx_sst_rel
-      marshal_dal=@make.marshal.dal_idx_sst_rel
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
+      marshal_ao=@make.marshal.ao_idx_sst_rel
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
     end
     def make_marshal_idx_html
-      marshal_dal=@make.marshal.dal_idx_html
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
+      marshal_ao=@make.marshal.ao_idx_html
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
     end
     def make_marshal_idx_xhtml
-      marshal_dal=@make.marshal.dal_idx_xhtml
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
+      marshal_ao=@make.marshal.ao_idx_xhtml
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Array)
     end
     def make_marshal_map_nametags
-      marshal_dal=@make.marshal.dal_map_nametags
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Hash)
+      marshal_ao=@make.marshal.ao_map_nametags
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Hash)
     end
     def make_marshal_map_name_ocn_htmlseg
-      marshal_dal=@make.marshal.dal_map_ocn_htmlseg
-      File.open(marshal_dal,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Hash)
+      marshal_ao=@make.marshal.ao_map_ocn_htmlseg
+      File.open(marshal_ao,'w'){|f| Marshal.dump(@data,f)} if @data.is_a?(Hash)
     end
   end
   class Make
@@ -505,17 +505,17 @@ module SiSU_AO
     def song
       reset
       data=@data
-      data=SiSU_AO_Insertions::Insertions.new(@md,data).expand_insertions?                                              # dal_expand_insertions.rb
-      data=SiSU_AO_MiscArrangeText::SI.new(@md,data).prepare_text                                                       # dal_misc_arrange.rb
-      data,metadata=SiSU_AO_DocumentStructureExtract::Build.new(@md,data).identify_parts                                # dal_doc_str.rb
-      data=SiSU_AO_Syntax::Markup.new(@md,data).songsheet                                                               # dal_syntax.rb
-      data,endnote_array=SiSU_AO_CharacterCheck::Check.new(data).character_check_and_oldstyle_endnote_array             # dal_character_check.rb
-      data=SiSU_AO_Images::Images.new(@md,data).images                                                                  # dal_images.rb
-      data,tags_map,ocn_html_seg_map=SiSU_AO_Numbering::Numbering.new(@md,data).numbering_song                          # dal_numbering.rb
-      data,book_index_rel,book_index_rel_html_seg,html_idx,xhtml_idx=SiSU_AO_BookIndex::BookIndex.new(@md,data,@env).indexing_song if @md.book_idx  # dal_idx.rb
-      data=SiSU_AO_Endnotes::Endnotes.new(@md,data,endnote_array).endnotes                                              # dal_endnotes.rb
+      data=SiSU_AO_Insertions::Insertions.new(@md,data).expand_insertions?                                              # ao_expand_insertions.rb
+      data=SiSU_AO_MiscArrangeText::SI.new(@md,data).prepare_text                                                       # ao_misc_arrange.rb
+      data,metadata=SiSU_AO_DocumentStructureExtract::Build.new(@md,data).identify_parts                                # ao_doc_str.rb
+      data=SiSU_AO_Syntax::Markup.new(@md,data).songsheet                                                               # ao_syntax.rb
+      data,endnote_array=SiSU_AO_CharacterCheck::Check.new(data).character_check_and_oldstyle_endnote_array             # ao_character_check.rb
+      data=SiSU_AO_Images::Images.new(@md,data).images                                                                  # ao_images.rb
+      data,tags_map,ocn_html_seg_map=SiSU_AO_Numbering::Numbering.new(@md,data).numbering_song                          # ao_numbering.rb
+      data,book_index_rel,book_index_rel_html_seg,html_idx,xhtml_idx=SiSU_AO_BookIndex::BookIndex.new(@md,data,@env).indexing_song if @md.book_idx  # ao_idx.rb
+      data=SiSU_AO_Endnotes::Endnotes.new(@md,data,endnote_array).endnotes                                              # ao_endnotes.rb
       outputdata=data
-      if (@md.opt.act[:dal][:set]==:on \
+      if (@md.opt.act[:ao][:set]==:on \
       || @md.opt.act[:maintenance][:set]==:on)
         SiSU_AO::Output.new(@fn,@md,outputdata).hard_output
         SiSU_AO::Output.new(@fn,@md,outputdata).make_marshal_content
diff --git a/lib/sisu/v5/ao_hash_digest.rb b/lib/sisu/v5/ao_hash_digest.rb
index 70deee80..e1cc840c 100644
--- a/lib/sisu/v5/ao_hash_digest.rb
+++ b/lib/sisu/v5/ao_hash_digest.rb
@@ -96,7 +96,7 @@ module SiSU_AO_Hash
         end
       end
       @tuned_file=@tuned_file.flatten
-      #use md5 or to create hash of each dal object including ocn, & add into to each dal object
+      #use md5 or to create hash of each ao object including ocn, & add into to each ao object
     end
     def endnote_digest(data)
       t_o_bit=[]
@@ -143,7 +143,7 @@ module SiSU_AO_Hash
       end
       t_o #KEEP intact
     end
-    def strip_clean_extra_spaces(s)                                            # dal output tuned
+    def strip_clean_extra_spaces(s)                                            # ao output tuned
       s=s.dup
       s=s.gsub(/[ ]+([,.;:?](?:$|\s))/,'\1') unless s =~/#{Mx[:en_a_o]}|#{Mx[:en_b_o]}/
       s=s.gsub(/ [ ]+/,' ').
diff --git a/lib/sisu/v5/concordance.rb b/lib/sisu/v5/concordance.rb
index 3ad394c7..8c675e36 100644
--- a/lib/sisu/v5/concordance.rb
+++ b/lib/sisu/v5/concordance.rb
@@ -202,7 +202,7 @@ WOK
       def initialize(particulars)
         @particulars=particulars
         begin
-          @env,@md,@dal_array=particulars.env,particulars.md,particulars.dal_array
+          @env,@md,@ao_array=particulars.env,particulars.md,particulars.ao_array
           @file=SiSU_Env::FileOp.new(@md)
           @freq=Hash.new(0)
           @dp=@@dp ||=SiSU_Env::InfoEnv.new.digest.pattern
@@ -256,7 +256,7 @@ WOK
       def map_para
         @seg,ocn=nil,nil
         @word_map={}
-        @dal_array.each do |line|
+        @ao_array.each do |line|
           if defined? line.ocn \
           and line.ocn.to_s =~/\d/
             if (line.is ==:heading \
diff --git a/lib/sisu/v5/conf.rb b/lib/sisu/v5/conf.rb
index 9418ff21..57e9614b 100644
--- a/lib/sisu/v5/conf.rb
+++ b/lib/sisu/v5/conf.rb
@@ -161,7 +161,7 @@ module SiSU_Initialize
     end
     def trang_rnc_model_output_sax
       s=@suffix
-      rnc_src=@env.processing_path.dal + '/sax.' + s[:rnc]
+      rnc_src=@env.processing_path.ao + '/sax.' + s[:rnc]
       rnc_file=@path[:rnc] + '/' + @rxng.rnc_name.output_sax
       rng_file=@path[:rng] + '/' + @rxng.rng_name.output_sax
       xsd_file=@path[:xsd] + '/' + @rxng.xsd_name.output_sax
@@ -183,7 +183,7 @@ module SiSU_Initialize
     end
     def trang_rnc_model_output_dom
       s=@suffix
-      rnc_src=@env.processing_path.dal + '/dom.' + s[:rnc]
+      rnc_src=@env.processing_path.ao + '/dom.' + s[:rnc]
       rnc_file=@path[:rnc] + '/' + @rxng.rnc_name.output_dom
       rng_file=@path[:rng] + '/' + @rxng.rng_name.output_dom
       xsd_file=@path[:xsd] + '/' + @rxng.xsd_name.output_dom
@@ -205,7 +205,7 @@ module SiSU_Initialize
     end
     def trang_rnc_model_output_xhtml
       s=@suffix
-      rnc_src=@env.processing_path.dal + '/xhtml.' + s[:rnc]
+      rnc_src=@env.processing_path.ao + '/xhtml.' + s[:rnc]
       rnc_file=@path[:rnc] + '/' + @rxng.rnc_name.output_xhtml
       rng_file=@path[:rng] + '/' + @rxng.rng_name.output_xhtml
       xsd_file=@path[:xsd] + '/' + @rxng.xsd_name.output_xhtml
@@ -226,7 +226,7 @@ module SiSU_Initialize
       end
     end
     def trang_rnc_model_input_sax
-      rnc_file=@env.processing_path.dal + '/sax.rnc'
+      rnc_file=@env.processing_path.ao + '/sax.rnc'
       dtd_file=@path[:xsd] + '/' + @rxng.rng_name.input_sax
       rnc=File.new(rnc_file,'w')
       rnc << @rxng.rnc_model_output_sax
@@ -235,7 +235,7 @@ module SiSU_Initialize
       schema.relaxng(@opt.cmd)
     end
     def trang_rnc_model_input_dom
-      rnc_file=@env.processing_path.dal + '/dom.rnc'
+      rnc_file=@env.processing_path.ao + '/dom.rnc'
       dtd_file=@path[:xsd] + '/' + @rxng.rng_name.input_dom
       rnc=File.new(rnc_file,'w')
       rnc << @rxng.rnc_model_output_dom
@@ -244,7 +244,7 @@ module SiSU_Initialize
       schema.relaxng(@opt.cmd)
     end
     def trang_rnc_model_input_node
-      rnc_file=@env.processing_path.dal + '/node.rnc'
+      rnc_file=@env.processing_path.ao + '/node.rnc'
       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/v5/db_import.rb b/lib/sisu/v5/db_import.rb
index 147f27df..8a8cc13d 100644
--- a/lib/sisu/v5/db_import.rb
+++ b/lib/sisu/v5/db_import.rb
@@ -76,7 +76,7 @@ module SiSU_DbImport
       @opt,@conn,@file_maint,@sql_type=opt,conn,file_maint,sql_type
       @cX=SiSU_Screen::Ansi.new(@opt.act[:color_state][:set]).cX
       @env=SiSU_Env::InfoEnv.new(@opt.fns)
-      @dal="#{@env.processing_path.dal}"
+      @dal="#{@env.processing_path.ao}"
       @fnb=if @opt.fns.empty? \
       or @opt.cmd.empty?
         ''
@@ -121,8 +121,8 @@ module SiSU_DbImport
       @@dl ||=SiSU_Env::InfoEnv.new.digest.length
     end
     def marshal_load
-      require_relative 'ao'                                # ao.rb
-      @dal_array=SiSU_AO::Source.new(@opt).get             # dal file drawn here
+      require_relative 'ao'                               # ao.rb
+      @ao_array=SiSU_AO::Source.new(@opt).get             # ao file drawn here
       if (@opt.act[:verbose][:set]==:on \
       || @opt.act[:verbose_plus][:set]==:on \
       || @opt.act[:maintenance][:set]==:on)
@@ -142,8 +142,8 @@ module SiSU_DbImport
       if not file_exist
         t_d=[]                                                              # transaction_data
         t_d << db_import_metadata
-        t_d << db_import_documents(@dal_array)
-        t_d << db_import_urls(@dal_array,@fnc)                              #import OID on/off
+        t_d << db_import_documents(@ao_array)
+        t_d << db_import_urls(@ao_array,@fnc)                              #import OID on/off
         t_d=t_d.flatten
         if (@opt.act[:verbose_plus][:set]==:on \
         || @opt.act[:maintenance][:set]==:on)
@@ -283,12 +283,12 @@ module SiSU_DbImport
       tuple=t.tuple
       tuple
     end
-    def db_import_documents(dal_array)                                     #% import documents - populate main database table, import into substantive database tables (tuple)
+    def db_import_documents(ao_array)                                     #% import documents - populate main database table, import into substantive database tables (tuple)
       begin
         @col[:tid]=@@id_t
         @en,@en_ast,@en_pls,@tuple_array=[],[],[],[]
         @col[:en_a],@col[:en_z]=nil,nil
-        dal_array.each do |data|
+        ao_array.each do |data|
           data.obj.gsub!(/#{Mx[:fa_bold_o]}(.+?)#{Mx[:fa_bold_c]}/,'\1')
           data.obj.gsub!(/#{Mx[:fa_italics_o]}(.+?)#{Mx[:fa_italics_c]}/,'\1')
           data.obj.gsub!(/#{Mx[:fa_underscore_o]}(.+?)#{Mx[:fa_underscore_c]}/,'\1')
diff --git a/lib/sisu/v5/digests.rb b/lib/sisu/v5/digests.rb
index e142ff11..0afa7378 100644
--- a/lib/sisu/v5/digests.rb
+++ b/lib/sisu/v5/digests.rb
@@ -75,7 +75,7 @@ module SiSU_DigestView
     end
     def read
       begin
-        @env,@md,@dal_array=@particulars.env,@particulars.md,@particulars.dal_array
+        @env,@md,@ao_array=@particulars.env,@particulars.md,@particulars.ao_array
         unless @opt.act[:quiet][:set]==:on
           tool=(@opt.act[:verbose][:set]==:on \
           || @opt.act[:verbose_plus][:set]==:on \
@@ -107,7 +107,7 @@ module SiSU_DigestView
       @@description,@@ds[:digests],@@ds[:tree],@@ds[:summary],@@sc_info=[],[],[],[],[]
       def initialize(particulars) #data='',md='')
         @particulars=particulars
-        @data,@env,@md=@particulars.dal_array,@particulars.env,@particulars.md
+        @data,@env,@md=@particulars.ao_array,@particulars.env,@particulars.md
         SiSU_Env::FileOp.new(@md).mkdir
         @@dg ||=@env.digest.type
         @@dl ||=@env.digest.length
@@ -120,7 +120,7 @@ module SiSU_DigestView
       def songsheet
         @@description,@@ds[:digests],@@ds[:tree],@@ds[:summary],@@sc_info=[],[],[],[],[]
         message_digest
-        dal_structure
+        ao_structure
         supplementary
         output
       end
@@ -132,11 +132,11 @@ module SiSU_DigestView
         puts f if @md.opt.act[:verbose_plus][:set]==:on
         @@ds[:digests] << f + "\n"
       end
-      def dal_structure_tree(f,e='')
+      def ao_structure_tree(f,e='')
         puts f + e.to_s if @md.opt.act[:verbose_plus][:set]==:on
         @@ds[:tree] << f << e
       end
-      def dal_structure_summary(f,e='')
+      def ao_structure_summary(f,e='')
         puts f + e.to_s if @md.opt.act[:verbose_plus][:set]==:on
         @@ds[:summary] << f << e
       end
@@ -302,7 +302,7 @@ module SiSU_DigestView
         description("Document Digests\n")
         description(a)
       end
-      def dal_structure
+      def ao_structure
         data=@data
         endnotes=nil
         data.each do |t_o|
@@ -330,8 +330,8 @@ module SiSU_DigestView
         end
         l=Hash.new(0)
         ocn=nil
-        dal_structure_tree("------------\n")
-        dal_structure_tree("document structure[*]\n")
+        ao_structure_tree("------------\n")
+        ao_structure_tree("document structure[*]\n")
         data.each do |t_o|
           if t_o.is==:heading
             x=case t_o.ln
@@ -351,11 +351,11 @@ module SiSU_DigestView
             end
           end
           ocn=t_o.ocn if defined? t_o.ocn and t_o.is !=:heading_insert
-          dal_structure_tree("#{x}\n") if x and not x.empty?
+          ao_structure_tree("#{x}\n") if x and not x.empty?
         end
-        dal_structure_tree("  [*] heading levels\n")
-        dal_structure_summary("------------\n")
-        dal_structure_summary("document structure[*]\n")
+        ao_structure_tree("  [*] heading levels\n")
+        ao_structure_summary("------------\n")
+        ao_structure_summary("document structure[*]\n")
         [0,1,2,3,4,5,6].each do |y|
           v=case y
           when 1; ':A'
@@ -365,11 +365,11 @@ module SiSU_DigestView
           when 5; '2 '
           when 6; '3 '
           end
-          dal_structure_summary("#{v}            = #{l[y]}\n") if l[y] > 0
+          ao_structure_summary("#{v}            = #{l[y]}\n") if l[y] > 0
         end
-        dal_structure_summary("objects (ocn) = #{ocn}\n")
-        dal_structure_summary("endnotes      = #{endnotes}\n")
-        dal_structure_summary("  [*] number of headers (@) and of each heading level (:A to :C and 1 to 3)\n")
+        ao_structure_summary("objects (ocn) = #{ocn}\n")
+        ao_structure_summary("endnotes      = #{endnotes}\n")
+        ao_structure_summary("  [*] number of headers (@) and of each heading level (:A to :C and 1 to 3)\n")
       end
       def supplementary
         if defined? @md.sc_number \
diff --git a/lib/sisu/v5/epub.rb b/lib/sisu/v5/epub.rb
index 969debe2..5f4957aa 100644
--- a/lib/sisu/v5/epub.rb
+++ b/lib/sisu/v5/epub.rb
@@ -149,8 +149,8 @@ module SiSU_EPUB
       def tuned_file_instructions
         @tell=SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set])
         directories
-        dal_array=@particulars.dal_array # dal file drawn here
-        @tuned_file_array=SiSU_EPUB_Tune::Tune.new(dal_array,@md).songsheet
+        ao_array=@particulars.ao_array # ao file drawn here
+        @tuned_file_array=SiSU_EPUB_Tune::Tune.new(ao_array,@md).songsheet
         @tuned_file_array
       end
     end
diff --git a/lib/sisu/v5/epub_concordance.rb b/lib/sisu/v5/epub_concordance.rb
index 628435f2..ab5b272a 100644
--- a/lib/sisu/v5/epub_concordance.rb
+++ b/lib/sisu/v5/epub_concordance.rb
@@ -156,7 +156,7 @@ WOK
         @particulars=particulars
         begin
           @vz=SiSU_Viz::Defaults.new
-          @env,@md,@dal_array=particulars.env,particulars.md,particulars.dal_array
+          @env,@md,@ao_array=particulars.env,particulars.md,particulars.ao_array
           @path="#{@env.processing_path.epub}"
           @freq=Hash.new(0)
           @rxp_lv1=/^#{Mx[:lv_o]}1:/ #fix Mx[:lv_o]
@@ -214,7 +214,7 @@ WOK
       def map_para
         @seg,toy=nil,nil
         @word_map={}
-        @dal_array.each do |line|
+        @ao_array.each do |line|
           if defined? line.ocn
             if (line.is ==:heading \
             || line.is ==:heading_insert) \
diff --git a/lib/sisu/v5/git.rb b/lib/sisu/v5/git.rb
index 447117ca..7a69a187 100644
--- a/lib/sisu/v5/git.rb
+++ b/lib/sisu/v5/git.rb
@@ -190,7 +190,7 @@ module SiSU_Git
       def locate_parse_file
         composite_src=@opt.fns=~/\.ssm$/ ? true : false
         if composite_src \
-        and not @opt.act[:dal][:set]==:on
+        and not @opt.act[:ao][:set]==:on
           ##SiSU_Assemble::Composite.new(@opt).read
           #SiSU_AO::Source.new(@opt).read                                         # -m
           "#{@env.processing_path.composite_file}/#{@opt.fnb}.ssm.sst"
diff --git a/lib/sisu/v5/html.rb b/lib/sisu/v5/html.rb
index f1abe6c0..7a1c4b60 100644
--- a/lib/sisu/v5/html.rb
+++ b/lib/sisu/v5/html.rb
@@ -162,8 +162,8 @@ module SiSU_HTML
       end
       def tuned_file_instructions
         @tell=SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set])
-        dal_array=@particulars.dal_array # dal file drawn here
-        tuned_file_array=SiSU_HTML_Tune::Tune.new(dal_array,@md).songsheet
+        ao_array=@particulars.ao_array # ao file drawn here
+        tuned_file_array=SiSU_HTML_Tune::Tune.new(ao_array,@md).songsheet
         tuned_file_array
       end
     end
diff --git a/lib/sisu/v5/hub.rb b/lib/sisu/v5/hub.rb
index c6545c1d..9390d517 100644
--- a/lib/sisu/v5/hub.rb
+++ b/lib/sisu/v5/hub.rb
@@ -280,7 +280,7 @@ module SiSU
           Dir.chdir(@opt.pth) #watch
         end
         @env=SiSU_Env::InfoEnv.new(@opt.fns)
-        if @opt.act[:dal][:set]==:on                   #% --dal, -m
+        if @opt.act[:ao][:set]==:on                   #% --ao --dal, -m
           unless @opt.act[:po4a][:set]==:on            # --po4a, -P
             if @opt.fno =~ /\.ssm$/
               require_relative 'composite'             # composite.rb #pre-processing
@@ -529,7 +529,7 @@ module SiSU
           SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],' ' + File.dirname(__FILE__)).grey
         end
       end
-      if @opt.act[:dal][:set]==:on \
+      if @opt.act[:ao][:set]==:on \
       or @opt.act[:maintenance][:set]==:on             #% --maintenance, -m for -C
         path={}
         path[:css]=@@env.path.output + '/_sisu/css'
@@ -581,7 +581,7 @@ module SiSU
       if @opt.act[:webrick][:set]==:on                 #% --webrick, -W webrick
         SiSU::Operations.new(@opt).webrick
       end
-      if @opt.act[:dal][:set]==:on
+      if @opt.act[:ao][:set]==:on
         @retry_count= -1
         begin
           @get_s,@get_p,@get_pl=[],[],[]
@@ -633,7 +633,7 @@ module SiSU
       and @opt.mod.join(';') =~/--(?:createdb|init(?:ialize)?|create(?:all)?|createtables|recreate|drop(?:all))/)
         :false
       else
-        (@opt.act[:dal][:set]==:on \
+        (@opt.act[:ao][:set]==:on \
         || @opt.act[:manpage][:set]==:on \
         || @opt.act[:texinfo][:set]==:on \
         || @opt.act[:txt][:set]==:on \
diff --git a/lib/sisu/v5/manpage.rb b/lib/sisu/v5/manpage.rb
index 8f721fd2..905cf87f 100644
--- a/lib/sisu/v5/manpage.rb
+++ b/lib/sisu/v5/manpage.rb
@@ -100,8 +100,8 @@ module SiSU_Manpage
         || @opt.act[:maintenance][:set]==:on)
           SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{@md.file.output_path.manpage.dir}/#{@md.file.base_filename.manpage}").flow
         end
-        @dal_array=SiSU_AO::Source.new(@opt).get # dal file drawn here
-        SiSU_Manpage::Source::Scroll.new(@md,@dal_array).songsheet
+        @ao_array=SiSU_AO::Source.new(@opt).get # ao file drawn here
+        SiSU_Manpage::Source::Scroll.new(@md,@ao_array).songsheet
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
diff --git a/lib/sisu/v5/odf.rb b/lib/sisu/v5/odf.rb
index b64c8ebe..c865b0cb 100644
--- a/lib/sisu/v5/odf.rb
+++ b/lib/sisu/v5/odf.rb
@@ -81,7 +81,7 @@ module SiSU_ODF
     end
     def read
       begin
-        @md,@env,@dal_array=@particulars.md,@particulars.env,@particulars.dal_array
+        @md,@env,@ao_array=@particulars.md,@particulars.env,@particulars.ao_array
         unless  @opt.act[:quiet][:set]==:on
           tool=(@opt.act[:verbose][:set]==:on \
           || @opt.act[:verbose_plus][:set]==:on \
@@ -115,7 +115,7 @@ module SiSU_ODF
       @@docstart=true
       @@fns=nil
       def initialize(particulars)
-        @md,@env,@dal_array=particulars.md,particulars.env,particulars.dal_array
+        @md,@env,@ao_array=particulars.md,particulars.env,particulars.ao_array
         @vz=SiSU_Viz::Defaults.new
         @tab="\t"
         @brace_url=SiSU_Viz::Defaults.new.url_decoration
@@ -125,7 +125,7 @@ module SiSU_ODF
       def songsheet
         begin
           pre
-          @data=markup(@dal_array)
+          @data=markup(@ao_array)
           publish
         ensure
           unless (@md.opt.act[:verbose_plus][:set]==:on \
diff --git a/lib/sisu/v5/options.rb b/lib/sisu/v5/options.rb
index 7203f8b2..650105fa 100644
--- a/lib/sisu/v5/options.rb
+++ b/lib/sisu/v5/options.rb
@@ -496,7 +496,7 @@ module SiSU_Commandline
           when /^--(?:color-toggle)$/;                               c=c+'c'
           when /^--(?:color-off)$/;                                  c=c+'k'
           when /^--(?:conf|config|configure|init|initialize|init-site)$/;                        c=c+'CC'
-          when /^--(?:dal?|machine|abstraction|abs)$/;               c=c+'m'
+          when /^--(?:ao|dal?|machine|abstraction|abs)$/;               c=c+'m'
           when /^--(?:txt|text|plaintext)$/;                         c=c+'t'
           when /^--(?:html)$/;                                       c=c+'h'
           when /^--(?:html-scroll|html-seg)$/;                       c=c+'H'
@@ -552,12 +552,12 @@ module SiSU_Commandline
       if cmd !~/[mn]/
         extra+=if cmd =~/[abegHhIiLNOoPpQTtwXxyz]/ \
         and cmd !~/[mn]/
-          'm'                        #% add dal
+          'm'                        #% add ao
         elsif ((cmd =~/[Dd]/ \
         or (mod.inspect =~/--(?:(?:sq)?lite|pg(?:sql)?)/)) \
         and mod.inspect !~/(?:remove|(?:(?:re)?create(?:all)?|dropall|drop)$)/) \
         and cmd !~/[mn]/
-          'm'                        #% add dal
+          'm'                        #% add ao
         else ''
         end
       end
@@ -883,10 +883,6 @@ module SiSU_Commandline
         || mod.inspect =~/"--texinfo"/) \
         ? { bool: true, set: :on }
         : { bool: false, set: :na }
-        act[:fictionbook]=(cmd =~/f/ \
-        || mod.inspect =~/"--fictionbook"/) \
-        ? { bool: true, set: :on }
-        : { bool: false, set: :na }
         act[:psql]=(cmd =~/D/ \
         || mod.inspect =~/"--pg"|"--pgsql"/) \
         ? { bool: true, set: :on }
@@ -964,8 +960,8 @@ module SiSU_Commandline
         act[:help]=(mod.inspect =~/"--help/) \
         ? { bool: true, set: :on }
         : { bool: false, set: :na }
-        act[:dal]=if (cmd =~/m/ \
-        || mod.inspect =~/"--dal"/)
+        act[:ao]=if (cmd =~/m/ \
+        || mod.inspect =~/"--ao"|"--dal"/)
           { bool: true, set: :on }
         elsif (act[:txt][:set]==:on \
         || act[:xhtml][:set]==:on \
@@ -992,14 +988,14 @@ module SiSU_Commandline
           #if cmd !~/[mn]/
           #  extra+=if cmd =~/[abegHhIiLNOoPpQTtwXxyz]/ \
           #  and cmd !~/[mn]/
-          #    'm'                        #% add dal
+          #    'm'                        #% add ao
         #elsif (act[:txt][:set]==:on \
         #  { bool: true, set: :on }
           #  elsif ((cmd =~/[Dd]/ \
           #  or (mod.inspect =~/--(?:(?:sq)?lite|pg(?:sql)?)/)) \
           #  and mod.inspect !~/(?:remove|(?:(?:re)?create(?:all)?|dropall|drop)$)/) \
           #  and cmd !~/[mn]/
-          #    'm'                        #% add dal
+          #    'm'                        #% add ao
         else
           { bool: false, set: :na }
         end
diff --git a/lib/sisu/v5/param.rb b/lib/sisu/v5/param.rb
index e8144a5e..d01f39e2 100644
--- a/lib/sisu/v5/param.rb
+++ b/lib/sisu/v5/param.rb
@@ -86,7 +86,7 @@ module SiSU_Param
       end
       SiSU_Param::Instantiate.new.param_instantiate
       @env=SiSU_Env::InfoEnv.new(@fns)
-      @pstorefile="#{@env.processing_path.dal}/#{@fns}.pstore"
+      @pstorefile="#{@env.processing_path.ao}/#{@fns}.pstore"
     end
     def get
       if @opt.f_pth \
@@ -1406,7 +1406,7 @@ module SiSU_Param
         end
         def store
           begin
-            pstorefile="#{@env.processing_path.dal}/#{@md.fns}.pstore"
+            pstorefile="#{@env.processing_path.ao}/#{@md.fns}.pstore"
             File.unlink(pstorefile) if FileTest.file?(pstorefile)
             if (@md.opt.act[:verbose_plus][:set]==:on \
             || @md.opt.act[:maintenance][:set]==:on)
diff --git a/lib/sisu/v5/particulars.rb b/lib/sisu/v5/particulars.rb
index d06afc12..beeaf429 100644
--- a/lib/sisu/v5/particulars.rb
+++ b/lib/sisu/v5/particulars.rb
@@ -73,7 +73,7 @@ module SiSU_Particulars
       set_env(opt)
       set_file(opt)
       set_md(opt)
-      set_dal(opt)                #needs @md
+      set_ao(opt)                #needs @md
     end
     def get_env(opt)
       set_env(opt)
@@ -84,8 +84,8 @@ module SiSU_Particulars
     def get_md(opt)
       set_md(opt)
     end
-    def get_dal_array(opt)
-      set_dal(opt)                #needs @md
+    def get_ao_array(opt)
+      set_ao(opt)                #needs @md
     end
     def get_env_md(opt)
       set_env(opt)
@@ -149,10 +149,10 @@ module SiSU_Particulars
         end
       end
     end
-    attr_accessor :opt,:dal_array
-    def set_dal(opt)
+    attr_accessor :opt,:ao_array
+    def set_ao(opt)
       begin
-        @dal_array=SiSU_AO::Source.new(opt).get
+        @ao_array=SiSU_AO::Source.new(opt).get
         self
       rescue
         SiSU_Errors::Rescued.new($!,$@,opt.cmd,opt.fnl).location do
diff --git a/lib/sisu/v5/plaintext.rb b/lib/sisu/v5/plaintext.rb
index 8585ad9d..57838342 100644
--- a/lib/sisu/v5/plaintext.rb
+++ b/lib/sisu/v5/plaintext.rb
@@ -99,7 +99,7 @@ module SiSU_Plaintext
             SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{md.file.output_path.txt.dir}/#{md.file.base_filename.txt}").flow
           end
         end
-        dal_array=SiSU_AO::Source.new(@opt).get # dal file drawn here
+        ao_array=SiSU_AO::Source.new(@opt).get # ao file drawn here
         wrap_width=if defined? md.make.plaintext_wrap \
         and md.make.plaintext_wrap
           md.make.plaintext_wrap
@@ -109,7 +109,7 @@ module SiSU_Plaintext
         else 78
         end
         #wrap_width=(defined? md.make.plaintext_wrap) ? md.make.plaintext_wrap : 78
-        SiSU_Plaintext::Source::Scroll.new(md,dal_array,wrap_width).songsheet
+        SiSU_Plaintext::Source::Scroll.new(md,ao_array,wrap_width).songsheet
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
diff --git a/lib/sisu/v5/po4a.rb b/lib/sisu/v5/po4a.rb
index 43ff51e9..217f2975 100644
--- a/lib/sisu/v5/po4a.rb
+++ b/lib/sisu/v5/po4a.rb
@@ -126,7 +126,7 @@ module SiSU_Po4a
           if @opt.fns =~/\S+?~#{@lang_regx}\.ss[mti]/ \
           or @opt.f_pth[:lng] !=@opt.lng_base
             opt_lang_trn_fn=fn
-            @dal_array_lang_translation=SiSU_AO::Source.new(@opt,opt_lang_trn_fn).get # dal file drawn here
+            @ao_array_lang_translation=SiSU_AO::Source.new(@opt,opt_lang_trn_fn).get # ao file drawn here
             opt_lang_src_fn=if fn =~/\S+?~\S{2}(?:_\S{2})?\.ss[mti]/
               fn.gsub(/(\S+?)~\S{2}(?:_\S{2})?(\.ss[mti])/,'\1\2') #check i
             else fn
@@ -141,15 +141,15 @@ module SiSU_Po4a
             else nil
             end
             if FileTest.file?("#{srcdir}/#{opt_lang_src_fn}")
-              @dal_array_lang_src=SiSU_AO::Source.new(@@opt_src,opt_lang_src_fn).get # dal file drawn here
+              @ao_array_lang_src=SiSU_AO::Source.new(@@opt_src,opt_lang_src_fn).get # ao file drawn here
             else
               puts "no identified source document"
               exit
             end
             Dir.chdir(transdir) if transdir
           else
-            @dal_array_lang_src=SiSU_AO::Source.new(@opt,fn).get # dal file drawn here
-            @dal_array_lang_translation=nil
+            @ao_array_lang_src=SiSU_AO::Source.new(@opt,fn).get # ao file drawn here
+            @ao_array_lang_translation=nil
           end
           wrap_width=if defined? md.make.plaintext_wrap \
           and md.make.plaintext_wrap
@@ -159,7 +159,7 @@ module SiSU_Po4a
             env.plaintext_wrap
           else 78
           end
-          SiSU_Po4a::Source::Scroll.new(fn,@dal_array_lang_src,@dal_array_lang_translation,@@md_src,@@md_trn,wrap_width).songsheet
+          SiSU_Po4a::Source::Scroll.new(fn,@ao_array_lang_src,@ao_array_lang_translation,@@md_src,@@md_trn,wrap_width).songsheet
         end
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
diff --git a/lib/sisu/v5/prog_text_translation.rb b/lib/sisu/v5/prog_text_translation.rb
index 8425a109..ae166d23 100644
--- a/lib/sisu/v5/prog_text_translation.rb
+++ b/lib/sisu/v5/prog_text_translation.rb
@@ -473,7 +473,7 @@ module SiSU_Translate
       'Document (RCS/CVS) number'
     end
     def last_generated
-      'Document (dal) last generated'
+      'Document (ao) last generated'
     end
     def sisu_version
       'Generated by'
@@ -1324,7 +1324,7 @@ module SiSU_Translate
       'Numero di revisione (RCS/CVS)'
     end
     def last_generated
-      'Data di ultima generazione (dal metaverse)'
+      'Data di ultima generazione (ao metaverse)'
     end
     def sisu_version
       'Generato da'
diff --git a/lib/sisu/v5/relaxng.rb b/lib/sisu/v5/relaxng.rb
index f6426f54..ef632308 100644
--- a/lib/sisu/v5/relaxng.rb
+++ b/lib/sisu/v5/relaxng.rb
@@ -327,9 +327,9 @@ element-external_space =
   }
 RELAXNG
     end
-    def rnc_sisu_object_dal
+    def rnc_sisu_object_ao
       @relaxng =<<RELAXNG
-#%% sisu object model: dal
+#%% sisu object model: ao
 #{gpl3_or_later}
 #%% definitions
 # dublin core:
diff --git a/lib/sisu/v5/shared_sisupod_source.rb b/lib/sisu/v5/shared_sisupod_source.rb
index f8a4058d..021d2e0f 100644
--- a/lib/sisu/v5/shared_sisupod_source.rb
+++ b/lib/sisu/v5/shared_sisupod_source.rb
@@ -300,7 +300,7 @@ sisu
     standard_terms/
     image
     processing
-      dal/
+      ao/
       tex/
       texinfo/
       tune/
diff --git a/lib/sisu/v5/sisupod_make.rb b/lib/sisu/v5/sisupod_make.rb
index 462e2ea4..4a53e968 100644
--- a/lib/sisu/v5/sisupod_make.rb
+++ b/lib/sisu/v5/sisupod_make.rb
@@ -155,7 +155,7 @@ sisu
     standard_terms/
     image
     processing
-      dal/
+      ao/
       tex/
       texinfo/
       tune/
diff --git a/lib/sisu/v5/sst_do_inline_footnotes.rb b/lib/sisu/v5/sst_do_inline_footnotes.rb
index f03c1c34..cafe9c60 100644
--- a/lib/sisu/v5/sst_do_inline_footnotes.rb
+++ b/lib/sisu/v5/sst_do_inline_footnotes.rb
@@ -82,19 +82,19 @@ module SiSU_ConvertFootnotes
     end
   end
   class Source <Instantiate
-    @@dal_array=[]
+    @@ao_array=[]
     @@fns=nil
     def initialize(opt)
       @opt=opt
       @@fns||@opt.fns
       @my_make=SiSU_Env::CreateFile.new(@opt.fns)
-      @fnm=SiSU_Env::InfoFile.new(@opt.fns).marshal.dal_content
+      @fnm=SiSU_Env::InfoFile.new(@opt.fns).marshal.ao_content
     end
-    def read                                                                     #creates dal
+    def read                                                                     #creates ao
       begin
-        @@dal_array=[]
+        @@ao_array=[]
         @@fns=@opt.fns
-        create_dal
+        create_ao
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -103,16 +103,16 @@ module SiSU_ConvertFootnotes
         Instantiate.new
       end
     end
-    def get                                                                      #reads dal, unless does not exist then creates first
+    def get                                                                      #reads ao, unless does not exist then creates first
       begin
-        dal=[]
+        ao=[]
         unless @@fns==@opt.fns
           @@fns=@opt.fns
-          @@dal_array=[]
+          @@ao_array=[]
         end
-        dal=(@@dal_array.empty?) \
+        ao=(@@ao_array.empty?) \
         ? read_fnm
-        : @@dal_array.dup #check
+        : @@ao_array.dup #check
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
@@ -122,8 +122,8 @@ module SiSU_ConvertFootnotes
       end
     end
   protected
-    def create_dal
-      dal_array=[]
+    def create_ao
+      ao_array=[]
       SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'convert footnotes').green_title_hi unless @opt.act[:quiet][:set]==:on
       file_array=IO.readlines(@opt.fns,'')
       file_array.each do |l|
@@ -136,21 +136,21 @@ module SiSU_ConvertFootnotes
       if @md.en[:mismatch]==0 \
       or @md.opt.mod.inspect =~/=footnotes-force/
         meta=nil
-        dal=SiSU_ConvertFootnotes::Make.new(@md,file_array).song
+        ao=SiSU_ConvertFootnotes::Make.new(@md,file_array).song
         SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{@md.fns}.fn").output if @md.opt.act[:verbose][:set]==:on
         SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"#{@md.fns}.fn -> #{@md.fns}.fn").txt_red unless @md.opt.act[:quiet][:set]==:on
-        dal.each {|s| dal_array << "#{s.strip}\n\n" unless s.strip.empty?}
-        dal_array
+        ao.each {|s| ao_array << "#{s.strip}\n\n" unless s.strip.empty?}
+        ao_array
       else
         SiSU_Screen::Ansi.new(@md.opt.act[:color_state][:set],'*WARN* no footnote conversion done, problem with source file','to override use --convert=footnote-force (this is not advised)').warn unless @md.opt.act[:quiet][:set]==:on
         ''
       end
     end
     def read_fnm
-      dal=[]
-      dal=(FileTest.file?(@fnm)) \
-      ? (File.open(@fnm){ |f| dal=Marshal.load(f)})
-      : (SiSU_ConvertFootnotes::Source.new(@opt).create_dal) #watch
+      ao=[]
+      ao=(FileTest.file?(@fnm)) \
+      ? (File.open(@fnm){ |f| ao=Marshal.load(f)})
+      : (SiSU_ConvertFootnotes::Source.new(@opt).create_ao) #watch
     end
   end
   class Output
@@ -189,7 +189,7 @@ module SiSU_ConvertFootnotes
     def song
       reset
       data=@data
-      @metafile="#{@env.processing_path.dal}/#{@md.fns}.meta"
+      @metafile="#{@env.processing_path.ao}/#{@md.fns}.meta"
       SiSU_Env::CreateFile.new(@md.fns)
       data=data.join.split("\n\n")
       data_new=[]
@@ -458,7 +458,7 @@ module SiSU_ConvertFootnotes
         end
       end
     end
-    def strip_clean_extra_spaces(s)                                            # dal output tuned
+    def strip_clean_extra_spaces(s)                                            # ao output tuned
       s=s.dup
       s=s.gsub(/[ ]+([,.;:?](?:$|\s))/,'\1')
       s=s.gsub(/ [ ]+/,' ')
@@ -482,4 +482,4 @@ module SiSU_ConvertFootnotes
 end
 __END__
 @particulars=SiSU_Particulars::CombinedSingleton.instance.get_all(opt)
-dal_array=@particulars.dal_array # dal file drawn here
+ao_array=@particulars.ao_array # ao file drawn here
diff --git a/lib/sisu/v5/sst_to_s_xml_sax.rb b/lib/sisu/v5/sst_to_s_xml_sax.rb
index a3fbde9f..09fecc9e 100644
--- a/lib/sisu/v5/sst_to_s_xml_sax.rb
+++ b/lib/sisu/v5/sst_to_s_xml_sax.rb
@@ -109,9 +109,9 @@ module SiSU_SimpleXML_ModelSax
       end
     end
     def read_fnm
-      dal=[]
+      ao=[]
       if FileTest.file?("#{Dir.pwd}/#{@opt.fns}")
-        dal=IO.readlines("#{Dir.pwd}/#{@opt.fns}","\n\n")
+        ao=IO.readlines("#{Dir.pwd}/#{@opt.fns}","\n\n")
       else STDERR.puts 'Error'
       end
     end
diff --git a/lib/sisu/v5/sysenv.rb b/lib/sisu/v5/sysenv.rb
index 19031711..344a88d3 100644
--- a/lib/sisu/v5/sysenv.rb
+++ b/lib/sisu/v5/sysenv.rb
@@ -142,7 +142,7 @@ module SiSU_Env
     PROCESSING_PATH=:processing_path
     PROCESSING_DIR_TMP_ROOT=:processing_dir_tmp_root
     PROCESSING_PATH_TMP_BASE=:processing_path_tmp_base
-    PROCESSING_AO=:processing_dal
+    PROCESSING_AO=:processing_ao
     PROCESSING_TUNE=:processing_tune
     PROCESSING_LATEX=:processing_latex
     PROCESSING_TEXINFO=:processing_texinfo
@@ -2161,7 +2161,7 @@ WOK
         ? ("#{root_dir}/#{user}/#{stub_pwd}")
         : ("#{root_dir}/#{stub_pwd}") # see defaults[:processing_path]
       end
-      def processing_sisupod(opt=nil)                                                   #processing directory, used/needed for sisu work files, has sub-directories (dal,tex etc)
+      def processing_sisupod(opt=nil)                                                   #processing directory, used/needed for sisu work files, has sub-directories (ao,tex etc)
         @opt=opt
         def paths
           processing_path_usr="#{root_dir}/#{user}"
@@ -2195,7 +2195,7 @@ WOK
         end
         self
       end
-      def processing                                                             #processing directory, used/needed for sisu work files, has sub-directories (dal,tex etc)
+      def processing                                                             #processing directory, used/needed for sisu work files, has sub-directories (ao,tex etc)
         unless FileTest.directory?(root_dir)
           FileUtils::mkdir_p(root_dir)
           File.chmod(0777,root_dir)
@@ -2219,11 +2219,11 @@ WOK
         end
         processing
       end
-      def dal
+      def ao
         pth=if defined? @rc['processing']['dal'] \
           and @rc['processing']['dal'].is_a?(String)
           "#{processing}/#{@rc['processing']['dal']}"
-        else "#{processing}/#{defaults[:processing_dal]}"
+        else "#{processing}/#{defaults[:processing_ao]}"
         end
         FileUtils::mkdir_p(pth) unless FileTest.directory?(pth)
         pth
@@ -2238,7 +2238,7 @@ WOK
         pth
       end
       def composite_file
-        pth=processing_path.dal  #"#{processing}/composite"
+        pth=processing_path.ao  #"#{processing}/composite"
         FileUtils::mkdir_p(pth) unless FileTest.directory?(pth)
         pth
       end
@@ -2978,51 +2978,51 @@ WOK
       ? (SiSU_Env::InfoEnv.new(@opt.fns))
       : (SiSU_Env::InfoEnv.new('dummy.sst')))
       ft=[]
-      if @opt.act[:dal][:set]==:on
+      if @opt.act[:ao][:set]==:on
         @md=SiSU_Param::Parameters.new(@opt).get
         if @md \
         and defined? @md.fn \
         and @md.fn        # used for by_language_code?
-          if @md.opt.act[:html][:set]==:on                  #% --html, -h -H
+          if @md.opt.act[:html][:set]==:on                 #% --html, -h -H
             ft << @md.fn[:html]
           end
-          if @md.opt.act[:concordance][:set]==:on           #% --concordance, -w
+          if @md.opt.act[:concordance][:set]==:on          #% --concordance, -w
             ft << @md.fn[:concordance]
           end
-          if @md.opt.act[:manifest][:set]==:on              #% --manifest, -y
+          if @md.opt.act[:manifest][:set]==:on             #% --manifest, -y
             ft << @md.fn[:manifest]
           end
-          if @md.opt.act[:txt][:set]==:on                   #% --txt, -t -a
+          if @md.opt.act[:txt][:set]==:on                  #% --txt, -t -a
             ft << @md.fn[:plain]
           end
-          if @md.opt.act[:xhtml][:set]==:on                 #% --xhtml, -b xhtml
+          if @md.opt.act[:xhtml][:set]==:on                #% --xhtml, -b xhtml
             ft << @md.fn[:xhtml]
           end
-          if @md.opt.act[:epub][:set]==:on                  #% --epub, -e
+          if @md.opt.act[:epub][:set]==:on                 #% --epub, -e
             ft << @md.fn[:epub]
           end
-          if @md.opt.act[:manpage][:set]==:on               #% --manpage, -i
+          if @md.opt.act[:manpage][:set]==:on              #% --manpage, -i
             ft << @md.fn[:manpage]
           end
-          if @md.opt.act[:hash_digests][:set]==:on          #% --hash-digests, -N digest tree
+          if @md.opt.act[:hash_digests][:set]==:on         #% --hash-digests, -N digest tree
             ft << @md.fn[:digest]
           end
-          if @md.opt.act[:odt][:set]==:on                   #% --odt, -o opendocument
+          if @md.opt.act[:odt][:set]==:on                  #% --odt, -o opendocument
             ft << @md.fn[:odf]
           end
-          if @md.opt.act[:pdf][:set]==:on                   #% --pdf-l --pdf, -p latex/ texpdf
+          if @md.opt.act[:pdf][:set]==:on                  #% --pdf-l --pdf, -p latex/ texpdf
             ft << @md.fn[:pdf_l] << @md.fn[:pdf_p]
           end
           if @md.opt.act[:share_source][:set]==:on
             ft << @md.fns
           end
-          if @md.opt.act[:sisupod][:set]==:on               #% --sisupod, -S make sisupod
+          if @md.opt.act[:sisupod][:set]==:on              #% --sisupod, -S make sisupod
             ft << @md.fn[:sisupod]
           end
-          if @md.opt.act[:xml_sax][:set]==:on               #% --xml-sax, -x xml sax type
+          if @md.opt.act[:xml_sax][:set]==:on              #% --xml-sax, -x xml sax type
             ft << @md.fn[:sax]
           end
-          if @md.opt.act[:xml_dom][:set]==:on               #% --xml-dom, -X xml dom type
+          if @md.opt.act[:xml_dom][:set]==:on              #% --xml-dom, -X xml dom type
             ft << @md.fn[:dom]
           end
           if @md.opt.act[:xml_scaffold_structure_sisu][:set]==:on          #% --xml-scaffold --xml-scaffold-sisu
@@ -3033,46 +3033,46 @@ WOK
           end
           @fnb=@md.fnb
         else                                                                     # still needed where/when param is not parsed
-          if @opt.act[:html][:set]==:on                  #% --html, -h -H
+          if @opt.act[:html][:set]==:on                    #% --html, -h -H
             ft << '.html' << '.html.??'
           end
-          if @opt.act[:concordance][:set]==:on           #% --concordance, -w
+          if @opt.act[:concordance][:set]==:on             #% --concordance, -w
             ft << 'concordance.html' << '??.concordance.html' << 'concordance.??.html'
           end
-          if @opt.act[:manifest][:set]==:on              #% --manifest, -y
+          if @opt.act[:manifest][:set]==:on                #% --manifest, -y
             ft << 'sisu_manifest.html' << '??.sisu_manifest.html' << 'sisu_manifest.??.html'
           end
-          if @opt.act[:txt][:set]==:on                   #% --txt, -t -a
+          if @opt.act[:txt][:set]==:on                     #% --txt, -t -a
             ft << 'plain.txt' << '??.plain.txt' << 'plain.??.txt'
           end
-          if @opt.act[:xhtml][:set]==:on                 #% --xhtml, -b xhtml
+          if @opt.act[:xhtml][:set]==:on                   #% --xhtml, -b xhtml
             ft << 'scroll.xhtml' << '??.scroll.xhtml' << 'scroll.??.xhtml'
           end
-          if @opt.act[:epub][:set]==:on                  #% --epub, -e
+          if @opt.act[:epub][:set]==:on                    #% --epub, -e
             ft  << @fnb << '.epub'
           end
-          if @opt.act[:manpage][:set]==:on               #% --manpage, -i
+          if @opt.act[:manpage][:set]==:on                 #% --manpage, -i
             ft << '.1' << '??.man.1' << 'man.??.1'
           end
-          if @opt.act[:hash_digests][:set]==:on          #% --hash-digests, -N digest tree
+          if @opt.act[:hash_digests][:set]==:on            #% --hash-digests, -N digest tree
             ft << 'digest.txt' << '??.digest.txt' << 'digest.??.txt'
           end
-          if @opt.act[:odt][:set]==:on                   #% --odt, -o opendocument
+          if @opt.act[:odt][:set]==:on                     #% --odt, -o opendocument
             ft << 'opendocument.odt' << '??.opendocument.odt' << 'opendocument.??.odt'
           end
-          if @opt.act[:pdf][:set]==:on                   #% --pdf-l --pdf, -p latex/ texpdf
+          if @opt.act[:pdf][:set]==:on                     #% --pdf-l --pdf, -p latex/ texpdf
             ft << 'landscape.pdf' << 'portrait.pdf' << '.pdf'
           end
           if @opt.act[:share_source][:set]==:on
             ft << '.sst' << '.ssi' << '.ssm'
           end
-          if @opt.act[:sisupod][:set]==:on               #% --sisupod, -S make sisupod
+          if @opt.act[:sisupod][:set]==:on                 #% --sisupod, -S make sisupod
             ft << '.zip'
           end
-          if @opt.act[:xml_sax][:set]==:on               #% --xml-sax, -x xml sax type
+          if @opt.act[:xml_sax][:set]==:on                 #% --xml-sax, -x xml sax type
             ft << 'sax.xml' << '??.sax.xml' << 'sax.??.xml'
           end
-          if @opt.act[:xml_dom][:set]==:on               #% --xml-dom, -X xml dom type
+          if @opt.act[:xml_dom][:set]==:on                 #% --xml-dom, -X xml dom type
             ft << 'dom.xml' << '??.dom.xml' << 'dom.??.xml'
           end
           if @opt.act[:xml_scaffold_structure_sisu][:set]==:on          #% --xml-scaffold --xml-scaffold-sisu
@@ -3139,16 +3139,16 @@ WOK
       def remove_output
         if @opt.act[:maintenance][:set] == :on
           m=InfoFile.new(@opt.fnc)
-          tell=SiSU_Screen::Ansi.new(@opt.cmd,@opt.fns, 'remove maintenance files from: ' + @env.processing_path.dal)
+          tell=SiSU_Screen::Ansi.new(@opt.cmd,@opt.fns, 'remove maintenance files from: ' + @env.processing_path.ao)
           tell.warn unless @opt.cmd =~/q/
-          deletion(m.marshal.dal_content)
-          deletion(m.marshal.dal_idx_sst_rel_html_seg)
-          deletion(m.dal_idx_sst_rel)
-          deletion(m.dal_idx_html)
-          deletion(m.dal_idx_xhtml)
-          deletion(m.dal_metadata)
-          deletion(m.dal_map_nametags)
-          deletion(m.dal_map_ocn_htmlseg)
+          deletion(m.marshal.ao_content)
+          deletion(m.marshal.ao_idx_sst_rel_html_seg)
+          deletion(m.ao_idx_sst_rel)
+          deletion(m.ao_idx_html)
+          deletion(m.ao_idx_xhtml)
+          deletion(m.ao_metadata)
+          deletion(m.ao_map_nametags)
+          deletion(m.ao_map_ocn_htmlseg)
           deletion(m.html_tune)
         end
         md=SiSU_Param::Parameters.new(@opt).get
@@ -3378,7 +3378,7 @@ WOK
     end
     def rsync
       def document
-        f=(@opt.act[:dal][:set]==:on) \
+        f=(@opt.act[:ao][:set]==:on) \
         ? SiSU_Env::FileOp.new(@md)
         : nil
         if f
@@ -3704,29 +3704,29 @@ WOK
       FileUtils::mkdir_p(path) unless FileTest.directory?(path)
     end
     def marshal
-      def dal_content
-        "#{@env.processing_path.dal}/#{@fns}.content.rbm"
+      def ao_content
+        "#{@env.processing_path.ao}/#{@fns}.content.rbm"
       end
-      def dal_idx_sst_rel_html_seg
-        "#{@env.processing_path.dal}/#{@fns}.idx_sst.rbm"
+      def ao_idx_sst_rel_html_seg
+        "#{@env.processing_path.ao}/#{@fns}.idx_sst.rbm"
       end
-      def dal_idx_sst_rel #used by tex & odf
-        "#{@env.processing_path.dal}/#{@fns}.idx_raw.rbm"
+      def ao_idx_sst_rel #used by tex & odf
+        "#{@env.processing_path.ao}/#{@fns}.idx_raw.rbm"
       end
-      def dal_idx_html
-        "#{@env.processing_path.dal}/#{@fns}.idx_html.rbm"
+      def ao_idx_html
+        "#{@env.processing_path.ao}/#{@fns}.idx_html.rbm"
       end
-      def dal_idx_xhtml
-        "#{@env.processing_path.dal}/#{@fns}.idx_xhtml.rbm"
+      def ao_idx_xhtml
+        "#{@env.processing_path.ao}/#{@fns}.idx_xhtml.rbm"
       end
-      def dal_metadata
-        "#{@env.processing_path.dal}/#{@fns}.metadata.rbm"
+      def ao_metadata
+        "#{@env.processing_path.ao}/#{@fns}.metadata.rbm"
       end
-      def dal_map_nametags
-        "#{@env.processing_path.dal}/#{@fns}.map_name_tags.rbm"
+      def ao_map_nametags
+        "#{@env.processing_path.ao}/#{@fns}.map_name_tags.rbm"
       end
-      def dal_map_ocn_htmlseg
-        "#{@env.processing_path.dal}/#{@fns}.map_ocn_htmlseg.rbm"
+      def ao_map_ocn_htmlseg
+        "#{@env.processing_path.ao}/#{@fns}.map_ocn_htmlseg.rbm"
       end
       def html_tune
         "#{@env.processing_path.tune}/#{@fns}.marshal_tune"
@@ -3741,8 +3741,8 @@ WOK
     end
     def mkdir #check moved from FileOp, existing mkdir
       def processing
-        def dal
-          FileUtils::mkdir_p(@env.processing_path.dal) unless FileTest.directory?(@env.processing_path.dal)
+        def ao
+          FileUtils::mkdir_p(@env.processing_path.ao) unless FileTest.directory?(@env.processing_path.ao)
         end
         def tune
           FileUtils::mkdir_p(@env.processing_path.tune) unless FileTest.directory?(@env.processing_path.tune)
@@ -4255,7 +4255,7 @@ WOK
       FileUtils::mkdir_p(output_path.base.dir) unless FileTest.directory?(output_path.base.dir)
       FileUtils::mkdir_p("#{output_path.base.dir}/#{@md.fnb}") unless FileTest.directory?("#{output_path.base.dir}/#{@md.fnb}")
       FileUtils::mkdir_p("#{output_path.base.dir}/#{@env.path.style}") unless FileTest.directory?("#{output_path.base.dir}/#{@env.path.style}")
-      FileUtils::mkdir_p(@env.processing_path.dal) unless FileTest.directory?(@env.processing_path.dal)
+      FileUtils::mkdir_p(@env.processing_path.ao) unless FileTest.directory?(@env.processing_path.ao)
       FileUtils::mkdir_p(@env.processing_path.tune) unless FileTest.directory?(@env.processing_path.tune)
     end
     def path_rel_links
@@ -6130,17 +6130,17 @@ WOK
       File.new('/tmp/errorlog.sisu','w+')
     end
     def file_txt
-      File.new("#{@env.processing_path.dal}/#{@fns}.txt",'w+')
+      File.new("#{@env.processing_path.ao}/#{@fns}.txt",'w+')
     end
     def file_debug
-      File.new("#{@env.processing_path.dal}/#{@fns}.debug.txt",'w+')
+      File.new("#{@env.processing_path.ao}/#{@fns}.debug.txt",'w+')
     end
     def metaverse
       def file_meta
-        File.new("#{@env.processing_path.dal}/#{@fns}.meta",'w+')
+        File.new("#{@env.processing_path.ao}/#{@fns}.meta",'w+')
       end
       def file_meta_idx_html
-        File.new("#{@env.processing_path.dal}/#{@fns}.idx.html",'w+')
+        File.new("#{@env.processing_path.ao}/#{@fns}.idx.html",'w+')
       end
       self
     end
@@ -6148,7 +6148,7 @@ WOK
       File.new("#{Dir.pwd}/#{@fns}.fn",'w+')
     end
     def meta
-      "#{@env.processing_path.dal}/#{@fns}.meta"
+      "#{@env.processing_path.ao}/#{@fns}.meta"
     end
     def file_semantic
       filename_semantic="./semantic.yaml"
diff --git a/lib/sisu/v5/texinfo.rb b/lib/sisu/v5/texinfo.rb
index 623cee2d..2e92268a 100644
--- a/lib/sisu/v5/texinfo.rb
+++ b/lib/sisu/v5/texinfo.rb
@@ -116,7 +116,7 @@ module SiSU_TexInfo
         : SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],'TexInfo',tool).green_title_hi
         @md=SiSU_Param::Parameters.new(@opt).get
         directories
-        @marshalfile=SiSU_Env::InfoFile.new(@opt.fns).marshal.dal_content
+        @marshalfile=SiSU_Env::InfoFile.new(@opt.fns).marshal.ao_content
         if FileTest.file?(@marshalfile)==true
           File.open(@marshalfile) { |f| @@tuned_file=Marshal.load(f)}
           #tell.meta_verse_skipped if @opt.cmd =~/[vVM]/
diff --git a/lib/sisu/v5/texpdf.rb b/lib/sisu/v5/texpdf.rb
index df089d31..bf72a1a6 100644
--- a/lib/sisu/v5/texpdf.rb
+++ b/lib/sisu/v5/texpdf.rb
@@ -126,9 +126,9 @@ module SiSU_TeX
         $flag=@md.opt.cmd                                                          #introduced to pass 0 for no object citation numbers... to texpdf_format
         directories
                                                                                #% needed needs to be reprogrammed !!!
-        dal_array=SiSU_AO::Source.new(@opt).get # dal file drawn here
+        ao_array=SiSU_AO::Source.new(@opt).get # ao file drawn here
         SiSU_TeX::Source::LaTeXcreate.new(@particulars).songsheet
-        dal_array=''
+        ao_array=''
         pwd=Dir.pwd
         SiSU_TeX::Source::LaTeXtoPdf.new(@md,@particulars.env).latexrun_selective
         Dir.chdir(pwd)
@@ -339,7 +339,7 @@ module SiSU_TeX
         @particulars=particulars
         @md=@particulars.md
         @env=SiSU_Env::InfoEnv.new(@md.fns) #@env=@particulars.env
-        @data=@particulars.dal_array # dal file drawn here
+        @data=@particulars.ao_array # ao file drawn here
         @st={ tex: {} }
         @tex_ml=SiSU_TeX_Pdf::UseTeX.new(@md)
         @vz=SiSU_Viz::Defaults.new
diff --git a/lib/sisu/v5/texpdf_format.rb b/lib/sisu/v5/texpdf_format.rb
index b20105af..556de8a6 100644
--- a/lib/sisu/v5/texpdf_format.rb
+++ b/lib/sisu/v5/texpdf_format.rb
@@ -168,7 +168,7 @@ module SiSU_TeX_Pdf
           end
           rows_new << r
         end
-        table=rows_new.join #@dob[:dal].obj=rows.join
+        table=rows_new.join #@dob[:ao].obj=rows.join
         ocn_display(@dob) + start_table + table + " #{end_table}\n\\end{tiny}"
       else ''
       end
@@ -213,7 +213,7 @@ module SiSU_TeX_Pdf
           end
           rows_new << r
         end
-        table=rows_new.join #@dob[:dal].obj=rows.join
+        table=rows_new.join #@dob[:ao].obj=rows.join
         ocn_display(@dob) + start_table + table + " #{end_table}\n\\end{tiny}"
       else ''
       end
diff --git a/lib/sisu/v5/urls.rb b/lib/sisu/v5/urls.rb
index a7b53985..9b2f1937 100644
--- a/lib/sisu/v5/urls.rb
+++ b/lib/sisu/v5/urls.rb
@@ -105,7 +105,7 @@ module SiSU_Urls
         'h --html (HTML scroll)'=>@fn[:doc],
         'I --texinfo (Info file)'=>'info',
         'i --manpage (manpage)'=>'manpage',
-        'm --dal (Document Abstraction)'=>'dal',
+        'm --ao (Document Abstraction)'=>'ao',
         'N --hash-digests (Digests md5/sha256)'=>@fn[:digest],
         'o --odt (ODF:ODT - Open Document)'=>@fn[:odf],
         'p --pdf (PDF landscape)'=>@fn[:pdf_l],
@@ -249,7 +249,7 @@ module SiSU_Urls
         if x =~/^m/ \
         and @opt.cmd=~/m/ \
         and x=~/^[#{opt.cmd}]/
-          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"-#{x}","#{@prog.text_editor} #{@env.processing_path.dal}/#{@opt.fns}.meta").maintenance
+          SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],"-#{x}","#{@prog.text_editor} #{@env.processing_path.ao}/#{@opt.fns}.meta").maintenance
         end
         if x=~/^([hw])/ \
         and @opt.cmd=~/[hw]/ \
diff --git a/lib/sisu/v5/wikispeak.rb b/lib/sisu/v5/wikispeak.rb
index eab2336d..65e87c13 100644
--- a/lib/sisu/v5/wikispeak.rb
+++ b/lib/sisu/v5/wikispeak.rb
@@ -90,8 +90,8 @@ module SiSU_Wikispeak
         || @opt.act[:maintenance][:set]==:on)
           SiSU_Screen::Ansi.new(@opt.act[:color_state][:set],@opt.fns,"#{@env.path.output_tell}/#{@md.fnb}/#{@md.fn[:wiki]}").flow
         end
-        @dal_array=SiSU_AO::Source.new(@opt).get # dal file drawn here
-        SiSU_Wikispeak::Source::Scroll.new(@dal_array,@md).songsheet
+        @ao_array=SiSU_AO::Source.new(@opt).get # ao file drawn here
+        SiSU_Wikispeak::Source::Scroll.new(@ao_array,@md).songsheet
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
diff --git a/lib/sisu/v5/xhtml.rb b/lib/sisu/v5/xhtml.rb
index 03ba0134..995316b1 100644
--- a/lib/sisu/v5/xhtml.rb
+++ b/lib/sisu/v5/xhtml.rb
@@ -82,7 +82,7 @@ module SiSU_XHTML
     end
     def read
       begin
-        @env,@md,@dal_array=@particulars.env,@particulars.md,@particulars.dal_array
+        @env,@md,@ao_array=@particulars.env,@particulars.md,@particulars.ao_array
         unless @opt.act[:quiet][:set]==:on
           tool=if (@opt.act[:verbose_plus][:set]==:on \
           || @opt.act[:maintenance][:set]==:on)
@@ -113,7 +113,7 @@ module SiSU_XHTML
     private
     class Songsheet
       def initialize(particulars)
-        @env,@md,@dal_array,@particulars=particulars.env,particulars.md,particulars.dal_array,particulars
+        @env,@md,@ao_array,@particulars=particulars.env,particulars.md,particulars.ao_array,particulars
         @file=SiSU_Env::FileOp.new(@md)
       end
       def song
@@ -140,7 +140,7 @@ module SiSU_XHTML
       require_relative 'css'                            # css.rb
       @@xml={ body: [], sisu: [], open: [], close: [], head: [] }
       def initialize(particulars)
-        @env,@md,@dal_array=particulars.env,particulars.md,particulars.dal_array
+        @env,@md,@ao_array=particulars.env,particulars.md,particulars.ao_array
         @vz=SiSU_Viz::Defaults.new
         @tab="\t"
         @trans=SiSU_XML_Munge::Trans.new(@md)
@@ -148,7 +148,7 @@ module SiSU_XHTML
       end
       def songsheet
         pre
-        @data=markup(@dal_array)
+        @data=markup(@ao_array)
         post
         publish
       end
diff --git a/lib/sisu/v5/xml_dom.rb b/lib/sisu/v5/xml_dom.rb
index 36a0dae1..6a2d7505 100644
--- a/lib/sisu/v5/xml_dom.rb
+++ b/lib/sisu/v5/xml_dom.rb
@@ -83,7 +83,7 @@ module SiSU_XML_DOM
     end
     def read
       begin
-        @env,@md,@dal_array=@particulars.env,@particulars.md,@particulars.dal_array
+        @env,@md,@ao_array=@particulars.env,@particulars.md,@particulars.ao_array
         unless @opt.act[:quiet][:set]==:on
           tool=if (@opt.act[:verbose_plus][:set]==:on \
           || @opt.act[:maintenance][:set]==:on)
@@ -114,7 +114,7 @@ module SiSU_XML_DOM
     private
     class Songsheet
       def initialize(particulars)
-        @env,@md,@dal_array,@particulars=particulars.env,particulars.md,particulars.dal_array,particulars
+        @env,@md,@ao_array,@particulars=particulars.env,particulars.md,particulars.ao_array,particulars
         @file=SiSU_Env::FileOp.new(@md)
       end
       def songsheet
@@ -140,14 +140,14 @@ module SiSU_XML_DOM
       require_relative 'shared_xhtml'                   # decide use, whether xml rather than xhtml
       @@xml={ body: [], open: [], close: [], head: [], sc: [] }
       def initialize(particulars)
-        @env,@md,@dal_array=particulars.env,particulars.md,particulars.dal_array
+        @env,@md,@ao_array=particulars.env,particulars.md,particulars.ao_array
         @vz=SiSU_Viz::Defaults.new
         @trans=SiSU_XML_Munge::Trans.new(@md)
         @sys=SiSU_Env::SystemCall.new
       end
       def songsheet
         pre
-        @data=markup(@dal_array)
+        @data=markup(@ao_array)
         post
         publish
       end
diff --git a/lib/sisu/v5/xml_sax.rb b/lib/sisu/v5/xml_sax.rb
index f9741ec1..a53abdd6 100644
--- a/lib/sisu/v5/xml_sax.rb
+++ b/lib/sisu/v5/xml_sax.rb
@@ -82,7 +82,7 @@ module SiSU_XML_SAX
     end
     def read
       begin
-        @env,@md,@dal_array=@particulars.env,@particulars.md,@particulars.dal_array
+        @env,@md,@ao_array=@particulars.env,@particulars.md,@particulars.ao_array
         unless @opt.act[:quiet][:set]==:on
           tool=if (@opt.act[:verbose_plus][:set]==:on \
           || @opt.act[:maintenance][:set]==:on)
@@ -114,7 +114,7 @@ module SiSU_XML_SAX
     private
     class Songsheet
       def initialize(particulars)
-        @env,@md,@dal_array,@particulars=particulars.env,particulars.md,particulars.dal_array,particulars
+        @env,@md,@ao_array,@particulars=particulars.env,particulars.md,particulars.ao_array,particulars
         @file=SiSU_Env::FileOp.new(@md)
       end
       def song
@@ -141,14 +141,14 @@ module SiSU_XML_SAX
       require_relative 'shared_xhtml'                   # decide use, whether xml rather than xhtml
       @@xml={ body: [], open: [], close: [], head: [] }
       def initialize(particulars)
-        @env,@md,@dal_array=particulars.env,particulars.md,particulars.dal_array
+        @env,@md,@ao_array=particulars.env,particulars.md,particulars.ao_array
         @vz=SiSU_Viz::Defaults.new
         @trans=SiSU_XML_Munge::Trans.new(@md)
         @sys=SiSU_Env::SystemCall.new
       end
       def songsheet
         pre
-        @data=markup(@dal_array)
+        @data=markup(@ao_array)
         post
         publish
       end
diff --git a/lib/sisu/v5/xml_scaffold_structure_collapsed.rb b/lib/sisu/v5/xml_scaffold_structure_collapsed.rb
index 8f14ea54..9a095f4b 100644
--- a/lib/sisu/v5/xml_scaffold_structure_collapsed.rb
+++ b/lib/sisu/v5/xml_scaffold_structure_collapsed.rb
@@ -73,8 +73,8 @@ module SiSU_XML_Scaffold_Structure_Collapse
     end
     def read
       begin
-        @md,@dal_array=@particulars.md,@particulars.dal_array
-        SiSU_XML_Scaffold_Structure_Collapse::Source::Scroll.new(@dal_array,@md).songsheet
+        @md,@ao_array=@particulars.md,@particulars.ao_array
+        SiSU_XML_Scaffold_Structure_Collapse::Source::Scroll.new(@ao_array,@md).songsheet
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__
diff --git a/lib/sisu/v5/xml_scaffold_structure_sisu.rb b/lib/sisu/v5/xml_scaffold_structure_sisu.rb
index 12e1088a..2848187f 100644
--- a/lib/sisu/v5/xml_scaffold_structure_sisu.rb
+++ b/lib/sisu/v5/xml_scaffold_structure_sisu.rb
@@ -73,8 +73,8 @@ module SiSU_XML_Scaffold_Structure_Sisu
     end
     def read
       begin
-        @md,@dal_array=@particulars.md,@particulars.dal_array
-        SiSU_XML_Scaffold_Structure_Sisu::Source::Scroll.new(@dal_array,@md).songsheet
+        @md,@ao_array=@particulars.md,@particulars.ao_array
+        SiSU_XML_Scaffold_Structure_Sisu::Source::Scroll.new(@ao_array,@md).songsheet
       rescue
         SiSU_Errors::Rescued.new($!,$@,@opt.cmd,@opt.fns).location do
           __LINE__.to_s + ':' + __FILE__