Multi layer conditional wrap HTML with XSLT

Question

In my Umbraco CMS site, I\'m making a list of node \"widgets\" for content editors to use, with a list of many options they can toggle to change the display. This often involves

Answer 1

 <!--Store data in processing instruction nodes in a separate XML file-->
 <?xml version='1.0' encoding="utf-8"?>
 <root>
   <?_1 div?>
   <?_2 p?>
 </root>

type_1 is wrapped by certain tags, type_2 is wrapped by different tags.

 <xsl:variable name="divider" select="document('condition.xml')//processing-instruction(concat('_', $type) )" />
 <xsl:variable name="equalizer" select="'span'"/>
 <xsl:element name="{$divider}">
 ...
 </xsl:element>

Next layer in, both could be wrapped by the same tags

 <xsl:if test="contains('1,2',$type)">
   <xsl:element name="{$equalizer}">
   ...
   </xsl:element>
 </xsl:if>