templates/slim/helpers.rb in asciidoctor-revealjs-1.0.2 vs templates/slim/helpers.rb in asciidoctor-revealjs-1.0.3

@@ -25,9 +25,13 @@
     else
       str
     end
   end
 
+  def to_boolean val
+    val && val != 'false' && val.to_s != '0' || false
+  end
+
 end
 
 # More custom functions can be added in another namespace if required
 #module Helpers
 #end