parse titles that have become detached downstream from their clause p…

…arents: metanorma/metanorma-standoc#742

isodoc.gemspec

@@ -44,6 +44,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency "twitter_cldr", ">= 6.6.0"
   spec.add_dependency "uuidtools"
 
+  spec.add_development_dependency "bigdecimal"
   spec.add_development_dependency "debug"
   spec.add_development_dependency "equivalent-xml", "~> 0.6"
   spec.add_development_dependency "guard", "~> 2.14"

lib/isodoc/function/section_titles.rb

@@ -18,6 +18,14 @@ def inline_header_title(out, node, title)
         end
       end
 
+      def freestanding_title(node, out)
+        parents = node.ancestors("clause, annex, terms, references, " \
+                               "definitions, acknowledgements, introduction, " \
+                               "foreword")
+        clause_parse_title(parents.empty? ? node : parents.first,
+                           out, node, out)
+      end
+
       # used for subclauses
       def clause_parse_title(node, div, title, out, header_class = {})
         return if title.nil?

lib/isodoc/function/to_word_html.rb

@@ -255,6 +255,7 @@ def parse(node, out)
           when "option" then option_parse(node, out)
           when "textarea" then textarea_parse(node, out)
           when "toc" then toc_parse(node, out)
+          when "title" then freestanding_title(node, out) # not inside clause
           when "variant-title" then variant_title(node, out)
           when "span" then span_parse(node, out)
           when "location" then location_parse(node, out)