I am trying to use XSLT to remove ancestor tags (and their children) when they have empty text and a specific attribute value. I have XSLT that checks the text() of each node and when it is empty and the ancestor has attribute deltaxml:deltaV2="A" I want to remove the ancestor and children nodes. 

Here is the xml tags I want to remove (note: the ancestor can be anything not just 'p'). In this case I want the last p tag and children removed: 

```
<body>
  <p deltaxml:deltaV2="A=B">
    <t>This is the same</t>
  </p>
  <p deltaxml:deltaV2="B">
    <t>This is inserted</t>
  </p>
  <p deltaxml:deltaV2="A">
    <t>This is deleted</t>
  </p>
  <p deltaxml:deltaV2="A">
    <t> </t>
  </p>
</body>

```

And here is the XSLT I have so far:

```
<xsl:template match="@* | * | processing-instruction() | comment()" mode="#all">
  <xsl:copy copy-namespaces="no">
    <xsl:apply-templates select="@*, node()" mode="#current"/>
  </xsl:copy>
</xsl:template> 
<xsl:template match="text()">
   <xsl:variable name="deltaV2" as="attribute()" select="ancestor::*[@deltaxml:deltaV2][1]/@deltaxml:deltaV2"/>
   <xsl:variable name="text" select="."/>
<xsl:choose>
  <xsl:when test="$deltaV2 eq 'A'">
    <xsl:choose>
      <xsl:when test="$text = ' '">

        <!-- need to remove ancestor tags-->

      </xsl:when>
      <xsl:otherwise>
        <xsl:element name="delete" namespace="{$root-ns}">
          <xsl:value-of select="."/>
        </xsl:element>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:when>
  <xsl:when test="$deltaV2 eq 'B'">
    <xsl:element name="insert" namespace="{$root-ns}">
      <xsl:value-of select="."/>
    </xsl:element>
  </xsl:when>
  <xsl:otherwise>
    <xsl:value-of select="."/>
  </xsl:otherwise>
</xsl:choose>

```

Here is desired output: 

```
<body>
  <p deltaxml:deltaV2="A=B">
    <t>This is the same</t>
  </p>
  <p deltaxml:deltaV2="B">
    <t><insert>This is inserted</insert></t>
  </p>
  <p deltaxml:deltaV2="A">
    <t><delete>This is deleted</delete></t>
  </p>
</body>

```

The reason I need this is because those attributes show whether something was inserted or deleted between 2 versions of XML, but if there was an empty node (ie. the empty t tags in the sample) I don't want to track that as a change since no text has changed, and just want that removed.
What do I need to put when the text is empty to be able to remove those tags?