lib/isodoc/presentation_function/math.rb in isodoc-1.7.3.1 vs lib/isodoc/presentation_function/math.rb in isodoc-1.7.4

@@ -1,7 +1,8 @@
 require "twitter_cldr"
 require "bigdecimal"
+require "mathml2asciimath"
 
 module IsoDoc
   class PresentationXMLConvert < ::IsoDoc::Convert
     MATHML = { "m" => "http://www.w3.org/1998/Math/MathML" }.freeze
 
@@ -68,10 +69,18 @@
       locale = TwitterCldr.supported_locale?(@lang.to_sym) ? @lang.to_sym : :en
       twitter_cldr_reader(locale)
       locale
     end
 
+    def asciimath_dup(node)
+      return if @suppressasciimathdup
+
+      a = MathML2AsciiMath.m2a(node.to_xml)
+      node.next = "<!-- #{a} -->"
+    end
+
     def mathml1(node, locale)
+      asciimath_dup(node)
       localize_maths(node, locale)
       return unless node.elements.size == 1 && node.elements.first.name == "mn"
 
       if node.parent.name == "stem"
         node.parent.replace(node.at("./m:mn", MATHML).children)