Adaptation to MathJax

Rules

@@ -45,6 +45,7 @@ compile '/html/*' do
   elsif ext == 'md' || ext == 'markdown'
     filter :erb
     filter :kramdown
+    filter :math_repair # after kramdown
   else
     raise "Filter is not configured for #{item.identifier} in Rules file."
   end

layouts/article.html

@@ -20,7 +20,7 @@ conf=LocalConf.new
 language=@item_rep.path.sub(/\/Scratch\//,'').sub(/\/.*$/,'')
 conf.language=language
 
-containMaths=yield.match('class="math"')
+containMaths=yield.match(/$(.|\n)*$/)
 conf.containMaths=containMaths
 
 # the current item is an article

lib/y.rb

@@ -20,6 +20,20 @@ def allExceptCode( f, content )
 end
 
 module Nanoc3::Filters
+    class MathJaxKramdownRepair < Nanoc3::Filter
+        identifiers :math_repair
+
+        def description(content)
+            content.gsub(/<div class="math">(.+?)<\/div>/m) do
+                return %{$$ #{$1} $$}
+            end
+        end
+
+        def run(content, params={})
+            allExceptCode( :description , content )
+        end
+    end
+
     class Description < Nanoc3::Filter
         identifiers :description