Resolve apresentação de fórmula tex-math em que \begin{document} e …

…`\end{document}` não estão respectivamente no início e no fim do conteúdo da tag (#294)

packtools/catalogs/htmlgenerator/v2.0/article-text-formula.xsl

@@ -28,6 +28,9 @@
 
     <xsl:template match="inline-formula/tex-math | inline-formula/alternatives/tex-math">
         <xsl:choose>
+            <xsl:when test="contains(.,'\begin{document}') and contains(.,'\end{document}')">
+                <xsl:value-of select="normalize-space(substring-after(substring-before(.,'\end{document}'),'\begin{document}'))"/>
+            </xsl:when>
             <xsl:when test="starts-with(.,'\begin') and contains(.,'\end')">
                 <xsl:value-of select="."/>
             </xsl:when>
@@ -44,6 +47,10 @@
     <xsl:template match="disp-formula/tex-math | disp-formula/alternatives/tex-math">
         <span class="formula-body">
             <xsl:choose>
+                <xsl:when test="contains(.,'\begin{document}') and contains(.,'\end{document}')">
+                    <span>
+                    <xsl:value-of select="normalize-space(substring-after(substring-before(.,'\end{document}'),'\begin{document}'))"/></span>
+                </xsl:when>
                 <xsl:when test="starts-with(.,'\begin') and contains(.,'\end')">
                     <xsl:value-of select="."/>
                 </xsl:when>

packtools/catalogs/htmlgenerator/v2.0/config-vars.xsl

@@ -30,7 +30,9 @@
     <xsl:variable name="MATHJAX">
         <xsl:choose>
             <xsl:when test="$math_js!=''"><xsl:value-of select="$math_js"/></xsl:when>
-            <xsl:otherwise>https://cdn.jsdelivr.net/npm/mathjax@3.0.0/es5/tex-mmlmath-chtml.js</xsl:otherwise>
+            <xsl:otherwise>https://cdn.jsdelivr.net/npm/mathjax@3.0.0/es5/tex-mml-svg.js</xsl:otherwise>
+
+
         </xsl:choose>
     </xsl:variable>