v3dv: start using output control hooks

* for config file, document headers, & command line
* v3dv: sysenv, ProcessingSettings, start to use hooks to make it possible
  to control (via: the command line; the document markup header, or; the
  configuration file) the likes of: ocn, toc, segsubtoc, minitoc,
  links-to-manifest, search-form, html-navigation, html-navigation-bar,
  html-right-pane, html-top-band; these are switched on by default and may
  be switched off in omit lists within configuration file, the document
  markup header, or command line. The command line takes precedence & may
  switch on or off overriding settings within the document markup header or
  the sisu configuration file.
  * --inc- on by default, but if switched off in doc header or
    configuration, the command line --inc- has precedence; for each possible
    exclude configuration the --inc- switch that overrides configuration
    settings
  * --exc- == --no-; exclude/switch off feature (but --inc- include has
    precedence)
  * document header @build: :omit: [list output features to be omitted]
  * configuration (sisurc.yml) omit:
  exclude output feature, overrides configuration settings (omit --dev
  development branch modifier once merged back to main)
   --exc-ocn,                 html (seg, scroll), epub, xml, pdf
     sisu --dev --exc-ocn --html --epub --xml-sax --xml-dom --xhtml -v \
     filename.sst
   --exc-toc,                 html (scroll), epub, pdf
     sisu --dev --exc-toc --html --epub --pdf -v filename.sst
   --exc-segsubtoc            html (seg), epub
     sisu --dev --exc-segsubtoc --html --epub -v filename.sst
   --exc-minitoc,             html (seg), concordance, manifest
     sisu --dev --exc-minitoc --html --concordance -v filename.sst
   --exc-manifest-minitoc,    manifest
     sisu --dev --exc-manifest-minitoc --html -v filename.sst
   --exc-links_to_manifest, --exc-manifest-links,
                              html (seg, scroll)
     sisu --dev --exc-manifest-links --html -v filename.sst
   --exc-search-form,         html (seg, scroll), manifest
     sisu --dev --exc-search-form --html -v filename.sst
   --exc-html-minitoc,        html (seg), concordance
     sisu --dev --exc-html-minitoc --html --concordance -v filename.sst
   --exc-html-navigation,     html (seg, scroll)?
     sisu --dev --exc-html-navigation --html -v filename.sst
   --exc-html-navigation-bar, html (seg)
     sisu --dev --exc-html-navigation-bar --html -v filename.sst
   --exc-html-search-form,    html (seg, scroll)
     sisu --dev --exc-html-search-form --html -v filename.sst
   --exc-html-right-pane,     html (seg, scroll)
     sisu --dev --exc-html-right-pane --html -v filename.sst
   --exc-html-top-band,       html (seg, scroll), concordance (minitoc is
     forced on to provide seg navigation)
     sisu --dev --exc-html-top-band --html --concordance -v filename.sst

1 files changed, 12 insertions, 19 deletions

diff --git a/lib/sisu/v3dv/xml_format.rb b/lib/sisu/v3dv/xml_format.rb
index 0b1e9eef..b40efc18 100644
--- a/lib/sisu/v3dv/xml_format.rb
+++ b/lib/sisu/v3dv/xml_format.rb
@@ -331,29 +331,22 @@ WOK
     def initialize(md,ocn)
       @md,@ocn=md,ocn.to_s
       @ocn ||=''
-      vz=SiSU_Env::GetInit.instance.skin
-      @skin_no_ocn=if not ocn
-        true
-      elsif defined? vz.ocn_display_off \
-      and vz.ocn_display_off==true
-        true
-      else false
-      end
     end
     def ocn_display
-      if @md.markup.inspect =~/no_ocn/ \
-      or @md.opt.mod.inspect =~/--no-ocn/ \
-      or @skin_no_ocn
-        ocn_class='ocn_off'
-        @ocn.gsub(/^(\d+|)$/,
-        %{<label class="#{ocn_class}">&nbsp;</label>})
-      elsif @ocn.to_i==0
-        @ocn.gsub(/^(\d+|)$/,
-        %{<label class="#{ocn_class}"><a name="#{@ocn}">&nbsp;</a></label>})
-      else
+      @make=SiSU_Env::ProcessingSettings.new(@md)
+      if @make.build.ocn?
         ocn_class='ocn'
+        if @ocn.to_i==0
+          @ocn.gsub(/^(\d+|)$/,
+            %{<label class="#{ocn_class}"><a name="#{@ocn}">&nbsp;</a></label>})
+        else
+          @ocn.gsub(/^(\d+|)$/,
+            %{<label class="#{ocn_class}"><a name="#{@ocn}">\\1</a></label>})
+        end
+      else
+        ocn_class='ocn_off'
         @ocn.gsub(/^(\d+|)$/,
-        %{<label class="#{ocn_class}"><a name="#{@ocn}">\\1</a></label>})
+          %{<label class="#{ocn_class}">&nbsp;</label>})
       end
     end
     def name