Update sqrt

lib/mathtype_to_mathml.rb

@@ -21,6 +21,23 @@ def initialize(mathtype)
     end
 
     def convert
+      @mathtype.xpath(".//tmpl[selector='tmINTEG']").each do |ele|
+        ele.xpath('.//slot/text()').each do |text|
+          element = Nokogiri::XML::Element.new("mi", @mathtype)
+          t = Nokogiri::XML::Text.new(text.text, @mathtype)
+          element.prepend_child(t)
+          text.replace(element)
+        end
+      end
+
+      @mathtype.xpath('.//text()').each do |text|
+        if text.parent.name == "slot" or text.parent.name == "pile"
+          element = Nokogiri::XML::Element.new("mi", @mathtype)
+          t = Nokogiri::XML::Text.new(text.text, @mathtype)
+          element.prepend_child(t)
+          text.replace(element)
+        end
+      end
       out = @xslt.transform(@mathtype)
       # This is a hack, but XML namespaces are such a pain to get
       # right, especially in nokigiri, so... We assume all content is

lib/transform.xsl

@@ -45,6 +45,7 @@
     <xsl:include href="xsl/box.xsl" />
     <xsl:include href="xsl/fence.xsl" />
     <xsl:include href="xsl/arrow.xsl"/>
+    <xsl:include href="xsl/root.xsl"/>
     <xsl:include href="xsl/matrix.xsl"/>
     <xsl:include href="xsl/long_embellishment.xsl"/>
     <xsl:include href="xsl/long_division.xsl"/>

lib/xsl/root.xsl

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+    xmlns:xs="http://www.w3.org/2001/XMLSchema"
+    exclude-result-prefixes="xs"
+    version="1.0">
+
+     <!-- SQRT -->
+
+     <xsl:template match="tmpl[selector='tmROOT' and variation='tvROOT_SQ']">
+        <msqrt>
+            <xsl:apply-templates select="slot[1] | pile[1]"/>
+            <xsl:apply-templates select="slot[2] | pile[2]"/>
+        </msqrt>
+    </xsl:template>
+
+    <xsl:template match="tmpl[selector='tmROOT' and variation='tvROOT_NTH']">
+        <mroot>
+            <xsl:apply-templates select="slot[1] | pile[1]"/>
+            <xsl:apply-templates select="slot[2] | pile[2]"/>
+        </mroot>
+    </xsl:template>
+</xsl:stylesheet>